7,976 research outputs found
Sistem E-DJ Player / Wong Hock Lin
No full textSistem E-DJ Player merupakan satu perisian untuk memainkan muzik dengan melalui komputer. Sistem ini bukan sahaja untuk mendengar lagu, ia juga dapat menkategorikan lagu berdasarkan jenis penyanyi, jenis album dan jenis audio. Selain itu, sistem ini juga dapat melakukan equalizer supaya pengguna boleh menyelara kualiti bunyai yang disukai. Berbanding dengan sistem sedia ada seperti Winamp,Windows Media Player, Cowon Jet-Audio dan sebagainya, system E-DJ Player dapat melaksanakan gabungan fungsi yang terdapat pada sistem ada. Metodologi yang digunakan untuk pembangunan sistem yang akan dibangun adalah model Air Terjun dan model Prototaip. Model ini membenarkan pembangun menilai sebehagian dari aspek sistem yang dicadang pada fasa awal. Perisian yang digunakan dalam pembangunan Sistem E-DJ Player adalah seperti Borland Jbuilder, Adobe Photoshop digunakan untuk mengedit gambar dan Microsoft Visio Profesional digunakan untuk membina Rajah Aliran Data (DFD). Microsoft SQL Server 2000 digunakan untuk mengurus pengkalan data. Beberapa kaedah penyelidikan digunakan untuk mendapatt keperluan-keperluan sistem. Ini termasuk borang selidik, pemerhatoam, melalui Internet, perbincangan dan lain-lain. Seterusnya, rekabentuk sistem dikaji dengan melibatkan tiga jenis rekabentuk iaitu senibina aplikasi, seni bina pengkalan data dan senibina antara muka. Sebagai kesimpulan, Sistem E-DJ Plyer dibangunkan dapat menghiburkan pengguna dan memberi perasaan selesa kepada pengguna secara tidak langsung
Rethinking live electronic music: a DJ perspective
No full textThe author critiques the conventional understanding of live electronic music through empirical research on his own DJ practice and investigates others working in the field. In reviewing the opinions of theorists and practitioners in both the live electronic music genre and DJ-ing he argues against the body/machine dialectic that has determined much of the thinking in the former. The author forms a notion of the DJ as a real-time composer working beyond traditional binary distinctions who brings the human body and machine into a mutual relationship. Through practice-led research he charts an investigation beginning in physical human gesture and culminating in digital machine repetition. He concludes that mechanical and digital repetition do not obscure human agency in the production of live works and that this concern is imaginary
hpDJ: An automated DJ with floorshow feedback
No full textMany radio stations and nightclubs employ Disk-Jockeys (DJs) to provide a continuous uninterrupted stream or “mix” of dance music, built from a sequence of individual song-tracks. In the last decade, commercial pre-recorded compilation CDs of DJ mixes have become a growth market. DJs exercise skill in deciding an appropriate sequence of tracks and in mixing 'seamlessly' from one track to the next. Online access to large-scale archives of digitized music via automated music information retrieval systems offers users the possibility of discovering many songs they like, but the majority of consumers are unlikely to want to learn the DJ skills of sequencing and mixing. This paper describes hpDJ, an automatic method by which compilations of dance-music can be sequenced and seamlessly mixed by computer, with minimal user involvement. The user may specify a selection of tracks, and may give a qualitative indication of the type of mix required. The resultant mix can be presented as a continuous single digital audio file, whether for burning to CD, or for play-out from a personal playback device such as an iPod, or for play-out to rooms full of dancers in a nightclub. Results from an early version of this system have been tested on an audience of patrons in a London nightclub, with very favourable results. Subsequent to that experiment, we designed technologies which allow the hpDJ system to monitor the responses of crowds of dancers/listeners, so that hpDJ can dynamically react to those responses from the crowd. The initial intention was that hpDJ would monitor the crowd’s reaction to the song-track currently being played, and use that response to guide its selection of subsequent song-tracks tracks in the mix. In that version, it’s assumed that all the song-tracks existed in some archive or library of pre-recorded files. However, once reliable crowd-monitoring technology is available, it becomes possible to use the crowd-response data to dynamically “remix” existing song-tracks (i.e, alter the track in some way, tailoring it to the response of the crowd) and even to dynamically “compose” new song-tracks suited to that crowd. Thus, the music played by hpDJ to any particular crowd of listeners on any particular night becomes a direct function of that particular crowd’s particular responses on that particular night. On a different night, the same crowd of people might react in a different way, leading hpDJ to create different music. Thus, the music composed and played by hpDJ could be viewed as an “emergent” property of the dynamic interaction between the computer system and the crowd, and the crowd could then be viewed as having collectively collaborated on composing the music that was played on that night. This en masse collective composition raises some interesting legal issues regarding the ownership of the composition (i.e.: who, exactly, is the author of the work?), but revenue-generating businesses can nevertheless plausibly be built from such technologies
Characterisation of DJ1 (PARK7) in human brain: possible involvement in idiopathic Parkinson's disease and other neurodegenerative disorders
No full textMutations in the DJ‐1 gene can induce the development of early‐onset Parkinson's disease
(PD) through a loss of protein function. Currently any possible role for DJ‐1 in sporadic PD
remains undetermined. To address this, we have studied the characteristics and activities of
DJ‐1 in post‐mortem human brain tissue in order to gain insights into its contribution to the
development of PD and other neurodegenerative disorders.
Western blotting revealed DJ‐1 protein expression to be reduced in several brain regions
associated with PD pathology including nigra, striatum and frontal cortex. Similarly levels of
DJ‐1 mRNA were also shown to also be lower in PD striatum and frontal cortex suggesting a
transcriptional regulation of protein expression in human brain. Further analysis of DJ‐1
gene expression showed PD related changes to be variable throughout the brain, with
regions like the amygdala and entorhinal cortex displaying an up‐regulation. DJ‐1 protein
was also shown to undergo increased oxidation in PD cases, highlighting the elevated
oxidative stress conditions in PD. By using immunoprecipitation to investigate a possible role for DJ‐1 as an in vivo regulator
of translation, we found DJ‐1 protein associates with RNA transcripts for selenoproteins,
PTEN/Akt pathway components and mitochondrial subunits of complex 1. Protein levels for
a number of these transcripts were altered in PD tissue without any parallel change in
mRNA levels. DJ‐1 is reportedly involved in a diverse range of cellular activities and its
proclivity to associate with multiple RNA species provides a simple biochemical mechanism
for this. Moreover it demonstrates that under conditions of elevated oxidative stress, DJ‐1
can instigate a rapid and compartmentalised up‐regulation of pro‐survival proteins in a
transcriptionally independent manner.
Analysis of DJ‐1 in tauopathies showed co‐localisation with 3R and 4R tau, implicating a
possible chaperone function for DJ‐1. Unlike in PD, no altered expression of DJ‐1 mRNA and
protein was observed
Interview of author Phenderson Dj\ue8l\ued Clark at the Zora Neale Hurston Festival in Eatonville, Florida
No full textAward winning author and founding member of FIYAH Literary Magazine, Phenderson Dj\ue8l\ued Clark, is interviewed by Grace Chun, project coordinator at University of Florida Samuel Proctor Oral History Program, as part of the 2020 Zora Neale Hurston Festival in Eatonville, Florida. Mr. Clark shares how his time in Trinidad, his exposure to afro-creole folktales, Hindu stories, Muslim festivals as well as his exposure to Twilight Zone and old horror movies from his parents nurtured a deep interest in the fantastic. Mr. Clark defines afrofuturism as something to do with the future, whether it is how Black people will exist in the future or futuristic ideas. He describes how his writing fits more with retro-afrofuturism, where you imbue the past with future elements and explore a past that never was. Mr. Clark says that afrofuturism offers a way to resist the kind of future in a world like now and how to form a resistance against it; it empowers people to imagine a different future, a possibility of a different future. He also talks about how afrofuturism extends beyond literary work into music and other creative forms
Identification of the recognition sequence and target proteins for DJ-1 protease
No full textDJ-1, the product of familial Parkinson's disease gene and an oncogene, is a cysteine protease which plays a role in anti-oxidative stress reaction. In this study, we identified the recognition sequence for DJ-1 protease by using recombinant DJ-1 and a peptide library. Protease activity of DJ-1 lacking C-terminal alpha-helix (DJ-1 Delta H9) was stronger than that of full-sized DJ-1, and the most susceptible sequence digested by DJ-1 Delta H9 was valine-lysine-valine-alanine (VKVA) under the optimal conditions of pH 5.5 and 0 mM NaCl. Divalent ions, especially Cu2+, were inhibitory to DJ-1's protease activity. c-abl oncogene 1 product (ABL1) and kinesin family member 1B (KIF1B) containing VKVA were digested by DJ-1 Delta H9. Structured summary of protein interactions: DJ-1 cleaves IUF1B by enzymatic study (View interaction) DJ-1 cleaves ABLI by enzymatic study (View interaction) (C) 2013 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved
Stimulation of vesicular monoamine transporter 2 activity by DJ-1 in SH-SY5Y cells
No full textLoss-of-functional mutation in the DJ-1 gene causes a subset of familial Parkinson's disease. The mechanism underlying DJ-1-related selective vulnerability in the dopaminergic pathway is, however, not known. Dopamine is synthesized by two enzymes and then packed into synaptic vesicles by vesicular monoamine transporter 2 (VMAT2). In this study, we found that knockdown of DJ-1 expression reduced the levels of mRNA and protein of VMAT2, resulting in reduced VMAT2 activity. Co-immunoprecipitation and pull-down experiments revealed that DJ-1 directly bound to VMAT2, and DJ-1 was co-localized with VMAT2 in cells. Furthermore, ectopic expression of wild-type DJ-1, but not that of L166P, M261 and C106S mutants of DJ-1, increased mRNA and protein levels of VMAT2 and VMAT2 activity. Since VMAT2 and a portion of DJ-1 are localized in the synaptic membrane, these results suggest that DJ-1, but not pathogenically mutated DJ-1, stimulates VMAT2 activity in the synapse by transactivation of the VMAT gene and by direct binding to VMAT2 and that cysteine 106 is necessary for the stimulating activity of DJ-1 toward VMAT2
Implementation of a Virtual DJ System on Embedded System
No full text隨著電腦科學和科技迅速的發展，在人們日常生活周遭中有大量的虛擬實境應用被實現。人們可以憑藉著這些虛擬實境應用來學習某些知識或模擬某些特殊的議題環境，例如學習音樂、學習駕駛汽車、學習各項運動...等。然而，目前並沒有一個合適且具有可攜性的模擬DJ(Disc Jockey)的虛擬環境應用被實現。於前述理由，我們將在這篇論文中實做一個 "Virtual Mobile DJ" 系統。在系統創建的過程中，我們探討，有關於Linux的聲音系統、UDA1341編解碼器、嵌入式系統下OSS (Open Sound System)音效驅動應用以及如何不靠硬體支援的情況下有效的控制MP3格式的音效檔案…等議題。最後我們提出一個合適且簡潔的使用者介面和說明如何在觸控螢幕上操作這一個系統。Along with the prosperous developments of computer science and technology, there are a large number of applications of virtual environment have been realized in people’s daily lives. People could learn some specific subjects or knowledge, such as playing music, driving a vehicle, exercising and so on, via these applications. However there is no proper and mobile DJ (Disc Jockey) relevant application be implemented nowadays. ased on this point, the “Virtual Mobile DJ” system is implemented on an embedded system in this thesis. During construction procedure of the system, we explored on Linux sound system, the UDA1341 codec, OSS (Open Sound System) driver on an embedded system environment, and how to control MP3 format data on an embedded system without hardware support. And then a proper and clear user interface made by Qt GUI framework is proposed. Finally, a user could manipulate the “Virtual Mobile DJ” system by touching the interactive touch-screen GUI functionality in embedded system platform.Chapter 1 Introduction 1.1 Motivation 1.2 Contributions and Challenges 2.3 Thesis Structure 3hapter 2 Related Works and Relevant Knowledge 5.1 Disc Jockey [3] 5.2 Sound System 7.2.1 PCM (Pulse-code modulation) 7.2.2 MPEG-1 Audio Layer 3 10.2.3 Linux Sound System 13.3 Embedded System Platform 15.4 Codec UDA1341 and IIS (Inter-IC sound) Bus 17hapter 3 System Architecture 22.1 Goal and System Overview 22.2 System Architecture 24.3 Qt User Interface 25.4 OSS Sound Driver 27.5 Libmad Library and Madplay Interface 30hapter 4 Implementation and Testing 35.1 Basic Embedded System Development Environment 35.2 Building OSS Driver and UDA1341 Module 36.3 Build Madplay Interface 40.4 System Testing 43hapter 5 Conclusions 46EFERENCES 4
The DJ as Critic, "constructing a sort of argument"
No full textCountering romanticized representations of the disc jockey (DJ) as author, rock star, or shaman, this essay argues that the DJ is best understood as a critic, emblematic of appropriation as criticism in a mediascape characterized by content surplus, not scarcity. The paper theorizes DJ techniques (e.g. playback, mixing) as processes of selection and sequencing that enact Foucault’s model of commentary. The work of American DJ Z-Trip provides a case study. I contextualize this argument according to institutions like patriarchy and copyright, and situate DJ work in a history of appropriative forms, from the ancient cento to digital curating platforms
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