Skilled musicians are able to shape a given piece of music (by continuously modulating aspects like tempo, loudness, etc.) to communicate high level information such as musical structure and emotion. This activity is commonly referred to as expressive music performance. The present paper presents another step towards the automatic high-level analysis of this elusive phenomenon with AI methods. ...

Bicyclic nitroxyl derivatives, such as 2-azaadamantane N-oxyl (AZADO) and 9-azabicyclo[3.3.1]nonane N-oxyl (ABNO), have emerged as highly effective alternatives to TEMPO-based catalysts for selective oxidation reactions (TEMPO = 2,2,6,6-tetramethyl-1-piperidine N-oxyl). Their efficacy is widely attributed to their smaller steric profile; however, electrocatalysis studies described herein show t...

We present an approach to phrase segmentation that starts with an expressive music performance. Previous research has shown that phrases are delineated by tempo speedups and slowdowns. We propose a dynamic programming algorithm for extracting phrases from tempo information. We test two hypotheses for modeling phrase tempo shapes: a quadratic model, and a spline curve. We test the two models on ...

The estimation of the musical tempo of audio signals is of large interest for various applications, e.g. the synchronization of multi-media content to music and music information retrieval systems. This article describes the author’s contribution to the 2 Annual Music Information Retrieval Evaluation Exchange (MIREX 2005) and gives an evaluation and comparison of the recognition performance. Th...

Rhythmic descriptors are often utilized for semantic music classification, such as genre recognition or tempo detection. Several algorithms dealing with the extraction of rhythmic information from music signals were proposed in literature. Most of them derive a so-called beat histogram by auto-correlating a representation of the temporal envelope of the music signal. To circumvent the problem o...

This paper presents a method for the extraction of music meter and tempo from raw polyphonic audio recordings, assuming that music meter remains constant throughout the recoding. Although this assumption can be restrictive for certain musical genres, it is acceptable for a large corpus of folklore eastern music styles, including Greek traditional dance music. Our approach is based on the selfsi...

Carboxylic acid groups were introduced onto thermomechanical pulp (TMP) long fiber surfaces by 2,2,6,6,tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated oxidation in the present study. The number of introduced carboxylic groups was closely related to the NaClO dosage, and more flexible fibers with lower curl and kink index were generated. Lignin was dissolved during the TEMPO-mediated oxida...

This paper describes a real-time system for rhythm manipulation of polyphonic audio signals. A rhythm analysis module extracts information of tempo and beat location. Based on this rhythm information, we apply different transformations: Tempo, Swing, Meter and Accent . This type of manipulation is generally referred as Content-based transformations. We address characteristics of the analysis an...

This paper proposes a unique computational approach to extraction of expressive elements of motion pictures for deriving high level semantics of stories portrayed, thus enabling better video annotation and interpretation systems. This approach, motivated and directed by the existing cinematic conventions known as film grammar, as a first step towards demonstrating its effectiveness, uses the at...

A trombose de stent (TS) é uma grande preocupação na era dos stents farmacológicos (SF). Há vários relatos de trombose de stent até cinco anos após sua implantação. Relatamos o caso de uma paciente de 68 anos com TS tardia, que se apresentou como infarto agudo do miocárdio com supradesnivelamento do segmento ST (IAMCSST) após interrupção da terapia antiplaquetária, oito anos depois da implantaç...