Rate-Splitting for Multigroup Multicast Beamforming in Multicarrier Systems

In this paper, we consider multigroup multicast transmissions with different types of service messages in an overloaded multicarrier system, where the number of transmitter antennas is insufficient to mitigate all inter-group interference. We show that employing a rate-splitting based multiuser beamforming approach enables a simultaneous delivery of the multiple service messages over the same time-frequency resources in a non-orthogonal fashion. Such an approach, taking into account transmission power constraints which are inevitable in practice, outperforms classic beamforming methods as well as current standardized multicast technologies, in terms of both spectrum efficiency and the flexibility of radio resource allocation.Comment: SPAWC 2018, 5 Pages, 2 fig

Emerging Applications of III‐Nitride Nanocrystals

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/154944/1/pssa201900885_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154944/2/pssa201900885.pd

In vivo elongation of thin filaments results in heart failure

A novel cardiac-specific transgenic mouse model was generated to identify the physiological consequences of elongated thin filaments during post-natal development in the heart. Remarkably, increasing the expression levels in vivo of just one sarcomeric protein, Lmod2, results in similar to 10% longer thin filaments (up to 26% longer in some individual sarcomeres) that produce up to 50% less contractile force. Increasing the levels of Lmod2 in vivo (Lmod2-TG) also allows us to probe the contribution of Lmod2 in the progression of cardiac myopathy because Lmod2-TG mice present with a unique cardiomyopathy involving enlarged atrial and ventricular lumens, increased heart mass, disorganized myofibrils and eventually, heart failure. Turning off of Lmod2 transgene expression at postnatal day 3 successfully prevents thin filament elongation, as well as gross morphological and functional disease progression. We show here that Lmod2 has an essential role in regulating cardiac contractile force and function.Open access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]

Aspect des échanges franco-coréens (la réception de la littérature romantique et les traductions du "Rouge et le Noir")

Le présent travail intitulé Aspect des échanges franco coréens : la réception de la littérature romantique et les traductions du Rouge et le Noir témoigne de l existence d un réel échange culturel entre Coréens et Français ; il veut rapprocher la culture, la littérature des deux pays autour de quelques traductions. Le but est ici de démontrer les divergences de sens entre littérature romantique française et coréenne.Le romantisme coréen commence avec un siècle de retard sur le romantisme français ce qui explique des différences importantes avec le romantisme français. D après nos recherches, nous voyons que les déterminants et les effets du romantisme coréen sont différents de ceux du romantisme français. D ailleurs, le romantisme est introduit en Corée sous l occupation japonaise, son contenu dépendait donc d interprétations japonaises préexistantes et ne pouvait pas avoir le même aspect qu en France.Ainsi, les fondements du romantisme coréen ne correspondent pas à un rejet du style classique comme ce fut le cas en France. Néanmoins, les Coréens ont adapté ce mouvement littéraire à leur manière surtout quant à la psychologie et aux procédés d écriture. Il ne s agissait donc pas d une création pure et simple mais plutôt d un processus de réception, d adaptation et de réutilisation d un mouvement littéraire étranger : le romantisme français.La Corée, se situant, géographiquement et culturellement aussi bien que linguistiquement, aux antipodes de la France, la traduction d oeuvres françaises en langue coréenne, et vice versa, pose probablement beaucoup plus de problèmes que la traduction d oeuvres françaises en toute autre langue occidentale, a fortiori quand il s agit de la traduction d oeuvres coréenne en une autre langue extrême-orientale. La traduction des oeuvres romantiques françaises a connu une difficulté supplémentaire à cause des retraductions multiples imposées aux livres avant qu ils parviennent aux lecteurs coréens sous l occupation japonaise. Nous constatons que même les traductions directes du français en coréen ne réussissent pas toujours à rendre correctement la signification du discours littéraire. Ainsi, certains choix du traducteur ne changent pas le sens de la phrase mais ils annulent un effet stylistique important voulu par l auteur français.Précisément, un lecteur coréen qui lit Stendhal en coréen ne comprend pas du tout le vrai Stendhal, celui du lecteur français. C est particulièrement exact pour Le Rouge et le Noir. En effet, c est bien connu, hors de France, la littérature française subit le prisme de la différence culturelle qui affecte le lecteur et de la traduction en cascadeThis paper, The exchange aspect on France and South Korea; The translation of The Red and the Black (Le Rouge et le Noir) plus acceptance of romantic literature of France, was started in order to find out exchanging the aspect of literature and culture of France. Literature, culture and translation between two countries and compared and show us the various aspects of literature of Korean and French romanticism. It is to find out what is the in common and different point of view about the Romantic movement of the two countries. The reason that it is considered to be interesting to compare with the Asian and European romanticism and they have a difference about the period of time almost one century. Started late almost one century then France, 1920 s Korean romanticism has very different aspects. The romanticism of Korea was influx through Japan under the Japanese colonial reign and showed personal, sentimental and decadent tendencies during the end of a century romanticism. The trends showed negative aspects of reality than the characteristic of romanticism early did.A situation under the Japanese colonial reign, Korean writers felt sorts of kinship at The French romanticism. The romanticism expressed freedom, youth and love under the reality of colony, but soon it changed into depression and hopelessness because of national ordeal. The indigenous feature of Romanticism was varied and accepted to us.Finally, we found the important element and the result of the romanticism of Korea have very perspective.Eventually, Korean romanticism began not a historical necessity like French romanticism, but the imitate homogeneity. So the Korean romantic movement was finished very shortly not lasting long. Another reason for the other aspects of the literary romantic movement between France and Korea is inaccurate translation.Acceptance of romantic literature of France in Korea at that time, was understood differently from the essence. Because of the regulation of Japanese though the double or triple translation.Culturally, geographically and linguistically, Korea is located in the opposite side of France. So, Korean translation of French literatures has a lot of trouble relatively than the translation in Western European languages of French literatures. It is difficult for to understand the actual Stendhal for korean readers who read literature of Stendhal in Korean. In particular, The Red and the Black of Stendhal is the one. French literatures outside of France show not only the problem of translation also f the curve about different of culture (which is called prism ), which makes us understood differentlyPARIS-EST-Université (770839901) / SudocPARIS12-Bib. électronique (940280011) / SudocSudocFranceF

Jointly Active and Passive Beamforming Designs for IRS-Empowered WPCN

This paper studies an intelligent reflecting surface (IRS)-empowered wireless powered communication network (WPCN) in Internet of Things (IoT) networks. In particular, a power station (PS) with multiple antennas uses energy beamforming to enable wireless charging to multiple IoT devices, in the downlink wireless energy transfer (WET) phase; then, during the uplink wireless information transfer (WIT) phase, these IoT devices utilise the harvested energy to concurrently transmit their individual information signal to a multi-antenna access point (AP), which equips with multi-user decomposition (MUD) techniques to reconstruct the IoT devices’ signal. An IRS is deployed to improve the energy collection and information transmission capabilities in the WET and WIT phases, respectively. To examine the performance of the system under study, We maximize the sum throughput with the aim of jointly designing the optimal solutions for the active PS energy beamforming, AP receive beamforming, passive IRS beamforming, and time scheduling. Due to the multiple coupled variables, the resulting formulation is non-convex, and a two-level scheme to solve the problem is proposed. At the outer level, a one-dimensional (1-D) search method is applied to find the optimal time scheduling, while at the inner level, an iterative block coordinate descent (BCD) algorithm is proposed to design the optimal receive beamforming, energy beamforming, and IRS phase shifts. In particular, the receive beamforming part is designed by considering the equivalence between sum rate maximisation and sum mean square error (MSE) minimisation, thereby deriving a closed-form solution. Furthermore, we alternately optimize the energy beamforming and IRS phase shifts using Lagrange dual transformation (LDT), quadratic transformation (QT), and alternating direction method of multipliers (ADMM) methods. Finally, numerical results are presented to showcase the performance of the proposed solution and highlight its advant..

Oscillatory Tracking of Continuous Attractor Neural Networks Account for Phase Precession and Procession of Hippocampal Place Cells

Hippocampal place cells of freely moving rodents display an intriguing temporal organization in their responses known as 'theta phase precession', in which individual neurons fire at progressively earlier phases in successive theta cycles as the animal traverses the place fields. Recent experimental studies found that in addition to phase precession, many place cells also exhibit accompanied phase procession, but the underlying neural mechanism remains unclear. Here, we propose a neural circuit model to elucidate the generation of both kinds of phase shift in place cells' firing. Specifically, we consider a continuous attractor neural network (CANN) with feedback inhibition, which is inspired by the reciprocal interaction between the hippocampus and the medial septum. The feedback inhibition induces intrinsic mobility of the CANN which competes with the extrinsic mobility arising from the external drive. Their interplay generates an oscillatory tracking state, that is, the network bump state (resembling the decoded virtual position of the animal) sweeps back and forth around the external moving input (resembling the physical position of the animal). We show that this oscillatory tracking naturally explains the forward and backward sweeps of the decoded position during the animal's locomotion. At the single neuron level, the forward and backward sweeps account for, respectively, theta phase precession and procession. Furthermore, by tuning the feedback inhibition strength, we also explain the emergence of bimodal cells and unimodal cells, with the former having co-existed phase precession and procession, and the latter having only significant phase precession. We hope that this study facilitates our understanding of hippocampal temporal coding and lays foundation for unveiling their computational functions

Extraskeletal chondroma of the fallopian tube.

Extraskeletal chondroma can occur in the hands, feet, head and neck. This tumor usually presents as a small solitary nodule. The histogenesis of the tumor is controversial, but some have suggested a metaplastic origin. Chondroma of the fallopian tube is very rare. There is only one report in English literature. The origin of this tumor can be subcoelomic mesenchyme of the tubal serosa or mesenchyme of the myosalpinx. We describe a case of chondroma arising from the serosal surface of the fallopian tube with a review of literature. A 30-yr-old woman visited hospital due to left adnexal mass. On operating finding, 2 x 3 cm sized nodular mass was noted on the left tubal serosal area. The excised mass showed multilobulated appearance covered with thin fibrous membrane. The cut surface was solid, grayish yellow, and myxoid with a focal gelatinous area. The microscopic finding showed islands and elongated lobules of mature benign cartilage without cytologic atypia