The Quantize & Forward (QF) scheme for two-way relaying is studied with a focus on its rate-distortion properties. A sum rate maximization problem is formulated and the associated quantizer optimization problem is investigated. An algorithm to approximately solve the problem is proposed. Under certain cases scalar quantizers maximize the sum rate. I. INTRODUCTION Consider a communication system...

In this paper we discuss some problematic aspects of Newman’s modularity function QN . Given a graph G, the modularity of G can be written as QN = Qf −Q0, where Qf is the intracluster edge fraction of G and Q0 is the expected intracluster edge fraction of the null model, i.e., a randomly connected graph with same expected degree distribution as G. It follows that the maximization of QN must acc...

Twelve organic Mn sources and MnSO4 were evaluated by polarographic analysis and via solubility in buffers (pH 5 and 2) and deionized water. Fractions from solubility tests were evaluated by gel filtration chromatography for structural integrity. Organic Mn sources included five Mn methionine complexes (Mn Met A to Mn Met E), two Mn proteinates (Mn Pro A and Mn Pro B), and five Mn amino acids (...

[Purpose] The aim of this study was to determine which factors, including pulmonary, physical, and mental functions; dyspnea; and daily physical activity (PA) affect the 6-minute walk distance (6MWD) in IPF patients. [Subjects and Methods] The pulmonary, physical, and mental functions; dyspnea; PA; and 6MWD were assessed in 38 outpatients with IPF. PA was represented by the mean number of steps...

Wt> f~rirsire the goal of tran.sf~arent~y &striGuling object-oriented fuwgrwr~.~ by consbrircting a systerfi of arrdictr-y ot5j’ect.s rrhich behace like refweventatices qf the original chs.se.s of tfw pmgrarri. Thy are rtn oh&toriented e.ztension of the well-known u.strlb rnorlrdes “. The he.st way o~designing these au.xilia~ objects i.s to hoe therri mirror the iri heritance stmctrire of tfie ...

EMA, aerodynamic, and acoustic signals were combined in order to observe lingual and labial articulation of oral and nasal vowels in Northern Metropolitan French (NMF) and Quebec French (QF). Inter-speaker variation observed in oral articulation suggests the importance of motor equivalence in the acoustic dispersion of each vowel system. Inter-dialectal differences observed are suggestive of im...

Objective: The aim of this in vitro study was to evaluate the fracture resistance endodontically treated teeth restored with different intraradicular posts (carbon fibers, glass, or quartz) varying post diameters (narrow, medium, large). Methodology: One hundred and twenty bovine incisors were space prepared. classified according distinct [Narrow (0.91-1.49mm), Medium (1.5-2.08mm), Large (2.09m...

Jaynes's information principle, i.e., maximum entropy principle (MEP), constrained by probability weighted moments (PWM), has been well established as an alternative method to directly estimate quantile functions (QF) from samples of a random variable. The existence, unbiasedness, and efficiency the QFs have illustrated in literature. However, issue how many orders PWMs is optimal for given sam...

Coxiella burnetii (C. burnetii) can cause a serious human disease known as Q Fever (QF). Our study summarized seroprevalence data from occupational settings in Italy, country characterized by low notification rates of QF (17 cases between 2015 and 2021). Through systematic research on 3 databases (PubMed, EMBASE, MedRxiv), all studies including C. Italy were retrieved, their results compared. W...

Purpose To describe the frequencies of chromosomal abnormalities found in abortion material, and to observe its correlation to maternal age. Methods A retrospective study was conducted based on data obtained from the databank of a medical genetics laboratory in Belo Horizonte, MG, Brazil. A total of 884 results from products of conception analysis were included, 204 of which were analyzed by cy...