Search results for "MAS"
showing 10 items of 18047 documents
Globalizzazione della maschilità e maschilizzazione dei processi globali
2012
Il saggio propone una delle possibili interpretazioni della globalizzazione, utilizzando una prospettiva di genere. In particolare si focalizza sulla globalizzazione e la conseguente naturalizzazione della maschilità all'interno delle diverse arene di cui si compone il sociale (globalizzato). L'esistenza di un “ordine di genere mondiale” intercetta una struttura di relazioni che connettono e proiettano i regimi di genere istituzionali e gli ordini di genere delle società locali su scala globale. Lo scritto sottolinea come, anche a livello globale, esistano processi di legittimazione e pratiche che servono a rendere un gruppo, quello dei maschi, egemone. La dimensione egemone è pertanto sost…
Medical masks and Respirators for the Protection of Healthcare Workers from SARS-CoV-2 and other viruses
2020
The use of medical masks and respirators as personal protective equipment is pivotal to reducing the level of biological hazard to which healthcare workers are exposed during the outbreak of highly diffusible pathogens, such as the recent novel coronavirus SARS-CoV-2. Unfortunately, during this pandemic, supplies are rapidly running out worldwide, with potential consequences for the rate of occupational infections. Also, knowledge about specific characteristics of respirators is of utmost importance to select the proper type according to the clinical setting. A wide variety of literature is available on the topic, but mostly based on Influenza viruses infection models. Clinical evidence on …
Meme marketing: How marketers can drive better engagement using viral memes?
2022
Scholars and industry stakeholders have exhibited an interest in identifying the underlying dimensions of viral memes. However, the recipe for creating a viral meme remains obscure. This study makes a phenomenological contribution by examining viral memes, exploring the antecedents (i.e., content-related factors, customer-related factors, and media-related factors), consequences, and moderating factors using a mixed-method approach. The study presents a holistic framework for creating viral memes based on the perceptions of customers and industry stakeholders. Four quantitative studies (i.e., a lab experiment, an online quasi-experiment, an event study, and a brand recall study) validate th…
Biotehnoloģisko metožu izmantošana vietējās selekcijas apšu hibrīdu pavairošanā audu kultūrā
2015
Pavairojot apšu hibrīdus audu kultūrā, nākas saskarties ar tādām problēmām kā kultivēšanas dārdzība, infekcijas un kultūras ilgtermiņa uzturēšanas izmaksas. Darba mērķis bija izstrādāt zinātnisko pamatu vietējās selekcijas apšu hibrīdu pavairošanas un uzglabāšanas efektivitātes paaugstināšanai. Darbā pārbaudīta HgCl2 virsmas sterilizācijas tehnika un tās ietekme uz mikrospraudeņu vitalitāti, kā reprezentatīvo rādītāju izmantojot hlorofila a fluorescences parametru vērtības; ex vitro pavairošanas pieeja; mikrospraudeņu uzglabāšanas iespējas +50C temperatūrā. Iegūtie rezultāti liecina, ka HgCl2 virsmas sterilizācija ir izmantojama mikrospraudeņu dezinfekcijai un augu vitalitāti būtiski neiete…
High-Reynolds-number turbulent cavity flow using the lattice Boltzmann method
2018
We present a boundary condition scheme for the lattice Boltzmann method that has significantly improved stability for modeling turbulent flows while maintaining excellent parallel scalability. Simulations of a three-dimensional lid-driven cavity flow are found to be stable up to the unprecedented Reynolds number $\mathrm{Re}=5\ifmmode\times\else\texttimes\fi{}{10}^{4}$ for this setup. Excellent agreement with energy balance equations, computational and experimental results are shown. We quantify rises in the production of turbulence and turbulent drag, and determine peak locations of turbulent production.
Microstructural evaluation and recommendations for face masks in community use to reduce the transmission of respiratory infectious diseases
2022
Funding Information: A.K., H.Y. and R.J. also acknowledges the funding through Academy of Finland BESIMAL (Decision No. 334197) and Aalto University, Department of Communications and Networking. This work has also received funding in part from the EPSRC UK (grant number EP/R012091/1). A.K. would also like to thank Mr. Volkan Kaplan for the fruitful discussions in the early concept generation. Publisher Copyright: © 2022 The Author(s) Background and Objective: Recommendations for the use of face masks to prevent and protect against the aerosols (≤5µm) and respiratory droplet particles (≥5µm), which can carry and transmit respiratory infections including severe acute respiratory syndrome coro…
Designing a graphics processing unit accelerated petaflop capable lattice Boltzmann solver: Read aligned data layouts and asynchronous communication
2016
The lattice Boltzmann method is a well-established numerical approach for complex fluid flow simulations. Recently, general-purpose graphics processing units (GPUs) have become available as high-performance computing resources at large scale. We report on designing and implementing a lattice Boltzmann solver for multi-GPU systems that achieves 1.79 PFLOPS performance on 16,384 GPUs. To achieve this performance, we introduce a GPU compatible version of the so-called bundle data layout and eliminate the halo sites in order to improve data access alignment. Furthermore, we make use of the possibility to overlap data transfer between the host central processing unit and the device GPU with com…
Systematic Comparison of Epidemic and Non-Epidemic Carbapenem Resistant Klebsiella pneumoniae Strains
2021
Over the past few decades, extensively drug resistant (XDR) resistant Klebsiella pneumoniae has become a notable burden to healthcare all over the world. Especially carbapenemase-producing strains are problematic due to their capability to withstand even last resort antibiotics. Some sequence types (STs) of K. pneumoniae are significantly more prevalent in hospital settings in comparison to other equally resistant strains. This provokes the question whether or not there are phenotypic characteristics that may render certain K. pneumoniae more suitable for epidemic dispersal between patients, hospitals, and different environments. In this study, we selected seven epidemic and non-epidemic ca…
Infection-induced chromatin modifications facilitate translocation of herpes simplex virus capsids to the inner nuclear membrane
2021
Herpes simplex virus capsids are assembled and packaged in the nucleus and move by diffusion through the nucleoplasm to the nuclear envelope for egress. Analyzing their motion provides conclusions not only on capsid transport but also on the properties of the nuclear environment during infection. We utilized live-cell imaging and single-particle tracking to characterize capsid motion relative to the host chromatin. The data indicate that as the chromatin was marginalized toward the nuclear envelope it presented a restrictive barrier to the capsids. However, later in infection this barrier became more permissive and the probability of capsids to enter the chromatin increased. Thus, although …
Conception en technologie CMOS d'un Système de Vision dédié à l'Imagerie Rapide et aux Traitements d'Images
2008
Our work presented in this thesis focuses on the design, testing and implementation of monolithics CMOS image smart sensors : The principle, performance and limitations. The hardware implementation of a vision smart system is the central link. HISIC is High Speed Image Capture with processing at pixel level. An experimental platform for instrumentation and evaluation of retina operators was conducted during this thesis. After a state of the smart sensors and CMOS retinas, the second part is dedicated to the study and design of the pixel image sensor HISIC. Two circuits were realized in CMOS technology. The first identied a new type of photo-detector, and the second, to create a prototype em…