We describe a novel approach to interpret a polar code as a low-density parity-check (LDPC)-like code with an underlying sparse decoding graph. This sparse graph is based on the encoding factor graph of polar codes and is suitable for conventional belief propagation (BP) decoding. We discuss several pruning techniques based on the check node decoder (CND) and variable node decoder (VND) update ...

Objective. The aim of this study was to identify the risk factors associated with central lymph node metastasis (CLNM) in patients with clinically node-negative conventional papillary thyroid carcinoma (cN0 CPTC). Methods. A total of 190 cN0 CPTC patients who underwent thyroidectomy with prophylactic central neck dissection (pCND) in the Department of General Surgery at Guangdong General Hospit...

El manejo activo de los pastos incide en la productividad animal y procesos biogeoquímicos del suelo, el ciclaje nutriente, donde gestión es un factor relevante para mantener estos biogeoquímicos, flujo emisiones gases efecto invernadero (GEI). objetivo principal presente estudio fue evaluar las GEI provenientes tres tipos fertilizantes (convencional, urea+inhibidor biofertilizante) empleados m...

Abstract. Fais MM, Yurnaliza Y, Hastuti LDS. 2022. Isolation and antibacterial activity of endophytic fungi from citronella grass (Cymbopogon nardus (L.) Rendle). Biodiversitas 23: 6564-6569. Endophytic are a group functional microorganisms plants that can be used as sustainable source to produce bioactive metabolites including pharmaceuticals. Citronella Rendle) is kind medicinal plant could r...

Abstract. Rahmi Z, Yurnaliza Y, Hastuti LDS. 2022. Isolation and screening of lovastatin-producing endophytic fungi from lemongrass (Cymbopogon nardus L.). Biodiversitas 23: 4189-4194. Fungi have long been studied for their cholesterol-lowering compounds, known as statins the derivatives through fermentation in laboratory investigations. Therefore, this study aimed to isolate screen fungal stra...

The information contained in a string x about a string y is the difference between the Kolmogorov complexity of y and the conditional Kolmogorov complexity of y given x, i.e., I(x : y) = C(y) − C(y |x). The Kolmogorov–Levin Theorem says that I(x : y) is symmetric up to a small additive term. We investigate if this property also holds for several versions of polynomial time bounded Kolmogorov co...

Beginning two years ago, the US Dept of Health and Human Services began "special reviews" of all current research grants that involved harm reduction, sex and drugs, and continues its ban on funding of needle exchange. With Bush's second term, the campaign was extended to all US funded international programs that dealt with these issues and populations. And, most recently, the US has again unde...

The edge clique cover sum number (resp. edge clique partition sum number) of a graph G, denoted by scc(G) (resp. scp(G)), is defined as the smallest integer k for which there exists a collection of complete subgraphs of G, covering (resp. partitioning) all edges of G such that the sum of sizes of the cliques is at most k. By definition, scc(G) 5 scp(G). Also, it is known that for every graph G ...

The question of inversion of NDT measurement is of first importance, since it can open the way towards the material physical and mechanical assessment. Inversion challenge is illustrated here by using two NDT (GPR and resistivity measurements) and two material indicators (saturation rate and porosity). The problem of inversion is formalized and solved by using data sets provided in the frame of...

Using the NH3 (6,6) transition, which samples dense (∼ 10 ) molecular gas with an energy above ground of 412 K, we find hot gas at high velocities (–142 to –210 km s) associated with the central 2 pc of the Galactic center. This material may be either infalling gas due to shocks or tidal stripping, or possibly gas swept from the nuclear region. We identify two high-velocity features, which we c...