Local Self-Energy Approach For Electronic Structure Calculations

Using a novel self-consistent implementation of Hedin's GW perturbation theory we calculate space and energy dependent self-energy for a number of materials. We find it to be local in real space and rapidly convergent on second-- to third-- nearest neighbors. Corrections beyond GW are evaluated and shown to be completely localized within a single unit cell. This can be viewed as a fully self consistent implementation of the dynamical mean field theory for electronic structure calculations of real solids using a perturbative impurity solver.Comment: 5 pages, 2 figure

Linear Response Calculations of Lattice Dynamics in Strongly Correlated Systems

We introduce a new linear response method to study the lattice dynamics of materials with strong correlations. It is based on a combination of dynamical mean field theory of strongly correlated electrons and the local density functional theory of electronic structure of solids. We apply the method to study the phonon dispersions of a prototype Mott insulator NiO. Our results show overall much better agreement with experiment than the corresponding local density predictions.Comment: 4 pages, 2 figure

Self-consistent Green function approach for calculations of electronic structure in transition metals

We present an approach for self-consistent calculations of the many-body Green function in transition metals. The distinguishing feature of our approach is the use of the one-site approximation and the self-consistent quasiparticle wave function basis set, obtained from the solution of the Schrodinger equation with a nonlocal potential. We analyze several sets of skeleton diagrams as generating functionals for the Green function self-energy, including GW and fluctuating exchange sets. Their relative contribution to the electronic structure in 3d-metals was identified. Calculations for Fe and Ni revealed stronger energy dependence of the effective interaction and self-energy of the d-electrons near the Fermi level compared to s and p electron states. Reasonable agreement with experimental results is obtained

PENINGKATAN PEMASARAN PRODUKSI PADA USAHA MIKRO PENJAHIT PAKAIAN

PENINGKATAN PEMASARAN PRODUKSI PADA USAHA MIKRO PENJAHIT PAKAIA

Korelasi antara Aspek Motivasi dalam Penyusunan Anggaran dengan Efektivitas Pelaksanaan Program Kegiatan pada Pemerintahan Provinsi Nanggroe Aceh Darussalam

This objective of research is aimed at finding out the correlations of motivation aspects in budget arrangement and effectiveness of program imple-mentation of the Provincial Government of Nanggroe Aceh Darussalam. Motivation aspects consist of working achievement, degree of complications on budgeting, degree of fairness on budgeting, and style of leadership.The samples comprice 100 employees selected by using simple random sampling. The data were collected by questionnaires, which have been tested both for its validity and for reliability. The Product Moment Correlation is used to test the validity of the data with the degree of significance 0.05 while the reliability is tested by using Alpha Cronbach technique.The result of this research shows that: (1) t test by partial degree of complication variable and degree of fairness variable has a significant correlation on effectiveness of program implementation. Style of leadership variable by partial also has significant correlation on effectiveness of program implementation, but working achievement variable has no significant correlation on effectiveness of program implementation. (2) there is positive correlation between four independent variables and dependent variable. (3) coefficient correlation shows that correlation between dependent variables and independent variable is 0.465. (4) R square is 0.12, indicates that there is 88% other aspects influence effectiveness of program implementation of the provincial government of Nanggroe Aceh Darussalam

Inovasi Gadjah Mada Bamboo Shelter (GAMBOOSTER) sebagai Smart And Eco Friendly Temporary Shelter Bagi Korban Bencana

Various regions in Indonesia are often had a natural disaster. Ironically handling of post-disaster still seem indolent and not ready especially fullfill requirement of shelters. Orientation of the above problem, we have an innovations arise to make shelters with various of design concept, include : shelters that can harvest the rain water, earthquake resistant, eco friendly materials, get implementing smart technology system as a puzzle and implement the dynamic wall system. The main materials used in our innovation is bamboo with the economic, low cost and sustainable when it compared to wood or aother materials. Same with implementing of other building work, temporary shelter that we construct need standart tools equipment builders. This activity is divided in two types of work, there\u27s fabrication site and construction site. On the implementation phase, we can starting from a literature search and discussion, survey tools and materials, permitting laboratories and make a shop drawing. After that, we can make the temporary shelters from the procurement of equipment and materials, work columns, beams, sloof, the walls and floor plate work, trust and roof work, finishing, construction phase and packaging. This product innovation is also equipped with a guide book for constructed, so our expectation is the temporary shelter can construct with effective and effisienly

Spectrally Efficient FDM System with Probabilistic Shaping

This work proposes and explores the use of probabilistic shaping for the non-orthogonal multicarrier spectrally efficient frequency division multiplexing (SEFDM) system. The system design considers the reverse concatenation architecture which cascades the constant composition distribution matching (CCDM) algorithm together with soft-decision forward error correction (SD-FEC)-LDPC code for the probabilistic shaping scheme. The non-orthogonal signalling is implemented by discrete Fourier transform (DFT)-based SEFDM modulation with matched filtering demodulation and advanced interference cancellation detection. The high achievable spectral efficiency, low computation complexity and reliability make SEFDM a good candidate for multicarrier signalling for beyond 5G communications. By adding extra shaping gain and flexibility of rate adaptation, the combination of two capacity-achieving techniques provides significant insight of further performance improvement. In this paper, we investigate the performance of the proposed probabilistically shaped-SEFDM (PS-SEFDM) system with regular QAM constellations. The presented results of the proposed system show less required power and bandwidth saving compared to OFDM when achieving the same error performance and same spectral efficiency

HIV/AIDS prisoners: a case study on quality of life in Roumieh, Lebanon

Prisons often lack the basic health services required by HIV/AIDS patients. As with many other chronic illnesses, the treatment of HIV is expensive in terms of medication, hygiene, testing and staff training. Strategies to combat the disease have been thoroughly developed, particularly in Europe (WHO/UNAIDS, 2006). The purpose of this study was to assess quality of life (QOL) of the only 5 reported cases of HIV/AIDS patients in Roumieh prison (the country’s largest male top-security prison) using the WHOQOL and the WHO guidelines on HIV infection and AIDS in prison. Virtually all prisoners reported that their rights had been violated. Isolation measures were taken to prevent the spread of the disease. According to UNAIDS, this particular measure has been proven ineffective. In conclusion, other approaches should be implemented to respect inmates’ rights and reduce transmission of the virus.Keywords: HIV/AIDS, quality of life, health, prisoners, human rights.Les prisons n’ont pas souvent les services de santé de base requises pour le traitement du VIH/SIDA. C’est le cas aussi d’autres maladies chroniques, le traitement du VIH coute cher en terme de médicaments, d’hygiène, de test, et la formation du personnel. Les stratégies pour combattre la maladie ont été bien développées, particulièrement en Europe (OMS/ONUSIDA, 2006). L’objectif de cette étude était d’évalué la qualité de vie (QDV) de 5 prisoniers malades du VIH/SIDA qui ont été signalés dans la prison de Roumieh (la plus grande prison du pays pour les hommes de haute sécurité) utilisant les guides de l’OMSQDV sur l’infection du VIH et le SIDA. Pratiquement tous les prisonniers signalaient que leurs droits ont été violés. Des mesures d’isolement ont été prises pour prévenir la propagation des maladies. Selon l’ONUSIDA cette mesure particulière s’est avérée inefficace. En conclusion, d’autres approches devraient être mises en oeuvre pour respecter les droits des détenus et réduire la transmission du virus

Probabilistic Shaping for Multidimensional Signals with Autoencoder-based End-to-end Learning

This work proposes a system that optimises multidimensional signal transmission, utilising signals with probabilistic shaping designed with the aid of end-to-end learning of an autoencoder-based architecture. For the first time, this work reports bit mapping optimisation for multidimensional signals and applied the newly derived optimised signals to the probabilistic shaping system. The autoencoder employs two neural networks for the transceiver, separated by the embedded channel. The optimisation of the autoencoder configuration is implemented for probabilistic shaping for n-dimensional signals. Specifically, We investigate a 4-dimensional (4D) signal employing 2 successive time slots that has better noise immunity relative to regular 2-dimensional quadrature amplitude modulation (QAM) signals. We propose a new application of autoencoders in communication systems based on 4D signals and apply machine learning to optimise the 4D probabilistic shaping on the basis of receiver signal-to-noise-ratio (SNR). The performance of the optimised probabilistically shaped 4D signals is evaluated in terms of the bit error rate (BER) and mutual information. Simulation results show that the proposed probabilistically shaped 4D signal achieves better BER performance relative to the unshaped 4D and regular 2D QAM. We demonstrate the mutual information of the proposed signal with varying SNR, showing its improved capacity in comparison with other constellations

A Multimodal Analysis of Advertisement of Online Marketplace Shopee

High human mobility demands the world of commerce to be able to provide services and goods quickly according to consumer demand. To overcome this phenomenon, now appears transactions that use the internet media to connect producers and consumers known as online marketplace. This research studies the advertisement in online marketplace named Shopee by using multimodal analysis. Shopee is an online marketplace app for buying and selling on mobile phones with ease and quickly offering a wide range of products. This research deals with linguistic and visual analysis. This research is focused on the function of the advertisement realized in the offer goods for buyers interested to see and buy that found and dominates in the online marketplace named Shopee. Multimodal analysis method that is used in the research is text verbal analysis theory in language metafunction such as ideational, interpersonal, and textual metafunction by Halliday (1994), while visual text using multimodal analysis by Kress and Van Leuwen (1996, 2006) and Cheong (2004). The result of multimodal analysis of advertisement of online marketplace Shopee is described in linguistic and visual analysis.   Keywords: multimodal, metafunctions of language, advertisement, Shope