Derrida in the University, or the Liberal Arts in Deconstruction

Derrida’s account of Kant’s and Schelling’s writings on the origins of the modern university are interpreted to show that theoretical positions attempting to oversee and master the contemporary university find themselves destabilized or deconstructed. Two examples of contemporary attempts to install the liberal arts as the guardians and overseers of the contemporary university are examined. Both examples fall prey to the types of deconstructive displacements identified by Derrida. The very different reasoning behind Derrida’s own institutional intervention in the modern French university is discussed. This discussion leads to concluding comments on the need to defend pure research in the humanities, as well as in the social and natural sciences, rather than elevating the classical liberal arts to a privileged position.  Le compte-rendu de Derrida sur les écrits de Kant et de Schelling portant sur les origines de l’université moderne démontre que des positions théoriques tentant de surveiller et de gouverner l’université contemporaine se trouvent déstabilisées et déconstruites. L’auteur étudie deux exemples de tentatives contemporaines visant à donner aux arts libéraux le statut de gardiens et de surveillants de l’université contemporaine. Les deux exemples en question ne tiennent pas la route devant les substitutions déconstructives identifiées par Derrida. On y discute le raisonnement fort différent derrière l’intervention institutionnelle au sein d’universités françaises modernes propre à Derrida. Cette discussion mène à des commentaires conclusifs sur le besoin de défendre la recherche pure dans les sciences humaines, sociales et naturelles, plutôt que d’élever les arts libéraux classiques à un rang privilégié

Histogram of oriented gradients front end processing: an FPGA based processor approach

The Field Programmable Gate Array (FPGA) implementation of the commonly used Histogram of Oriented Gradients (HOG) algorithm is explored. The HOG algorithm is employed to extract features for object detection. A key focus has been to explore the use of a new FPGA-based processor which has been targeted at image processing. The paper gives details of the mapping and scheduling factors that influence the performance and the stages that were undertaken to allow the algorithm to be deployed on FPGA hardware, whilst taking into account the specific IPPro architecture features. We show that multi-core IPPro performance can exceed that of against state-of-the-art FPGA designs by up to 3.2 times with reduced design and implementation effort and increased flexibility all on a low cost, Zynq programmable system

Objective Assessment of Perceptual Audio Quality Using ViSQOLAudio

Digital audio broadcasting services transmit substantial amounts of data that is encoded to minimize bandwidth whilst maximizing user quality of experience. Many large service providers continually alter codecs to improve the encoding process. Performing subjective tests to validate each codec alteration would be impractical, necessitating the use of objective perceptual audio quality models. This paper evaluates the quality scores from ViSQOLAudio, an objective perceptual audio quality model, against the quality scores of PEAQ, POLQA, and PEMO-Q on three datasets containing fullband audio encoded with a variety of codecs and bitrates. The results show that ViSQOLAudio was more accurate than all other models on two of the datasets and performed well on the third, demonstrating the utility of ViSQOLAudio for predicting the perceptual audio quality for encoded music

Fabrication of MoS2 nanowire arrays and layered structures via the self-assembly of block copolymers

The electronics industry is beginning to show interest in 2D molybdenum disulfide (2D‐MoS2) as a potential device material due to its low band gap and high mobility. However, current methods for its synthesis are not “fab” friendly and require harsh environments and processes. Here, a novel method to prepare MoS2 nanowire arrays and layered structures via self‐assembly of a block copolymer system is reported. Well‐controlled films of microphase separated line‐space nanopatterns have been achieved by solvent annealing process. The self‐assembled films are used as “templates” for the generation of nonstoichometric molybdenum oxide by in situ inclusion technique following UV/Ozone treatment. Well‐ordered array of MoS2 and a layered structure are then prepared by chemical vapor deposition using sulfur powder at lower temperature. The surface morphology, crystal structure, and phases are examined by different microscopic and spectroscopic techniques. This strategy can be extended to several other 2D materials systems and open the pathway toward better optoelectronic and nanoelectromechanical systems

Influence of localized surface plasmons on Pauli blocking and optical limiting in graphene under femtosecond pumping

The Pauli blocking limit and optical limiting threshold have been found to be modified following silver-nanoparticle decoration of functionalized hydrogen induced exfoliated graphene. Femtosecond Z-scan experiments have been used to measure the Pauli blocking range, optical limiting threshold, and the third order nonlinear susceptibility (χ(3)) values. The observed results have been explained by modified band structure of graphene in the presence of silver nanoparticles and their localized surface plasmon resonances

Plantaricyclin A, a novel circular bacteriocin produced by Lactobacillus plantarum NI326: purification, characterization, and heterologous production

Bacteriocins from lactic acid bacteria (LAB) are of increasing interest in recent years due to their potential as natural preservatives against food and beverage spoilage microorganisms. In a screening study for LAB, we isolated from olives a strain, Lactobacillus plantarum NI326, with activity against the beverage-spoilage bacterium Alicyclobacillus acidoterrestris. Genome sequencing of NI326 enabled the identification of a gene cluster (designated plc) encoding a putative circular bacteriocin and proteins involved in its modification, transport, and immunity. This novel bacteriocin, named plantaricyclin A (PlcA), was grouped into the circular bacteriocin subgroup II due to its high degree of similarity with other gassericin A-like bacteriocins. Purification of PlcA from the supernatant of Lb. plantarum NI326 resulted in an active peptide with a molecular mass of 5,570 Da, corresponding to that predicted from the (processed) PlcA amino acid sequence. The plc gene cluster was cloned and expressed in Lactococcus lactis NZ9000, resulting in the production of an active 5,570-Da bacteriocin in the supernatant. PlcA is believed to be produced as a 91-amino-acid precursor with a 33-amino-acid leader peptide, which is predicted to be removed, followed by joining of the N and C termini via a covalent linkage to form the mature 58-amino-acid circular bacteriocin PlcA. We report the characterization of a circular bacteriocin produced by Lb. plantarum. The inhibition displayed against A. acidoterrestris highlights its potential use as a preservative in food and beverages.IMPORTANCE In this work, we describe the purification and characterization of an antimicrobial peptide, termed plantaricyclin A (PlcA), produced by a Lactobacillus plantarum strain isolated from olives. This peptide has a circular structure, and all genes involved in its production, circularization, and secretion were identified. PlcA shows antimicrobial activity against different strains, including Alicyclobacillus acidoterrestris, a common spoilage bacterium, which causes substantial economic losses in the beverage industry every year. In this study, we describe a circular antimicrobial peptide, PlcA, for a Lactobacillus plantarum strain

Migrations in our common home: Planning for change - Climate change and migration

Policy briefing on Ireland's response to climate migration in the context of COP27Migration linked to climate change did not get the attention it deserves at COP27. The Global North must accept responsibility for its role in driving climate change and abide by their commitments made to schemes which address worsening conditions for those in the Global South – according to the Roundtable on Migration in Our Common Home. COP27 marks thirty years since the adoption of the United Nations Framework Convention on Climate Change. As the world grapples with the devastating consequences of intensifying climate change, this policy brief examines how climate change is impacting migration, displacement and food security. As COP27 draws to a close, this policy brief looks at the pledges made by Ireland, as well as Ireland’s obligations to Official Development Assistance (ODA) and Climate Finance and the compelling argument in favour of Loss and Damage funding made by the Global south for over three decades. As COP27 draws to a close, the Roundtable expresses its disappointment at the lack of ambition evident in Ireland’s response and the repackaging of previously announced, and inadequate, policies