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56 papers found.
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Photoluminescence characteristics of soft PZT 53/47 ceramic doped at A and/or B sites

This study presents the photoluminescence characteristics of the PZT 53/47 system doped at A and/or B sites, with Nb (PZTN), La (PLZT), and Nb–La (PLZTN) in the concentration range from 0.2 to 1.0 molar fraction. The intensity of the emission bands of the system PZTN is two orders higher than the intensity of the emission bands of the systems PLZT and PLZTN, and these emission...

Social networks, market transactions, and reputation as a central resource. The Mercado del Mar, a fish market in central Mexico

Fish consumption in Mexico is considered low (around 12 kg per person per year) and non-homogeneously distributed across the country. One of the reasons for this situation is the scarcity of wholesale selling sites. In this context, the Mercado del Mar (MM), located in Guadalajara city, Jalisco, is the second biggest wholesale fish market in Mexico, with a distribution of about...

Effective-field theory analysis of the τ − → η (′) π − ν τ decays

The rare τ − → η (′) π − ν τ decays, which are suppressed by G-parity in the Standard Model (SM), can be sensitive to the effects of new interactions. We study the sensitivity of different observables of these decays in the framework of an effective field theory that includes the most general interactions between SM fields up to dimension six, assuming massless neutrinos. Owing...

Operando Spectroscopy of the Gas-Phase Aldol Condensation of Propanal over Solid Base Catalysts

The gas-phase aldol condensation of propanal, taken as model for the aldehyde components in bio-oils, has been studied with a combined operando set-up allowing to perform FT-IR & UV–Vis diffuse reflectance spectroscopy (DRS) with on-line mass spectrometry (MS). The selected solid base catalysts, a cesium-exchanged X zeolite (Cs-X), a calcium hydroxyapatite (Ca-HA) and two...

Inventory of managed aquifer recharge sites in Europe: historical development, current situation and perspectives

Different types of managed aquifer recharge (MAR) schemes are widely distributed and applied on various scales and for various purposes in the European countries, but a systematic categorization and compilation of data has been missing up to now. The European MAR catalogue presented herein contains various key parameters collected from the available literature. The catalogue...

Bone resorptive activity in symptomatic and asymptomatic apical lesions of endodontic origin

Objectives The aim of this study is to assess the levels and diagnostic accuracy of a set of bone resorption biomarkers, including TRAP-5, RANKL, and OPG in symptomatic and asymptomatic apical lesions and controls. Materials and methods Apical tissues from symptomatic and asymptomatic apical periodontitis patients and periodontal ligaments from healthy teeth extracted for...

Computing the Refined Compression Field Theory

In recent years, some modifications were introduced in the stress–strain relationship of the steel in order to develop a more efficient shear model for reinforced concrete members. The last contribution in this sense corresponding to the Refined Compression Field Theory (RCFT, 2009); this theory proposed a steel constitutive model that has account the tension stiffening area...

In Silico Analysis of the Structural and Biochemical Features of the NMD Factor UPF1 in Ustilago maydis

The molecular mechanisms regulating the accuracy of gene expression are still not fully understood. Among these mechanisms, Nonsense-mediated Decay (NMD) is a quality control process that detects post-transcriptionally abnormal transcripts and leads them to degradation. The UPF1 protein lays at the heart of NMD as shown by several structural and functional features reported for...

‘Where did you hide?’ Locating the divine in the Cántico espiritual and Rāsa Līlā

THE poetical and theological dynamics of apparent absence, which kindle the desire for the always-elusive presence of God, are shared by the Sanskrit Rāsa Līlā and the Spanish Cántico espiritual. Although these Hindu and Christian mystical works of literature are not historically or philologically related, they converse in poetical and theological terms, revealing aspects that...

Chromothripsis Is a Recurrent Genomic Abnormality in High-Risk Myelodysplastic Syndromes

To explore novel genetic abnormalities occurring in myelodysplastic syndromes (MDS) through an integrative study combining array-based comparative genomic hybridization (aCGH) and next-generation sequencing (NGS) in a series of MDS and MDS/myeloproliferative neoplasms (MPN) patients. 301 patients diagnosed with MDS (n = 240) or MDS/MPN (n = 61) were studied at the time of...

Specialized advertising and price competition in vertically differentiated markets

This paper studies how the emergence of specialized communication media focused on both high quality contents and high quality advertised products, affects the functioning of a vertically differentiated market. To that end, we formulate a simultaneous game of pricing and targeted advertising with two firms producing different levels of quality. We find that the transition from...

Strong emissions of blue–yellow–red regions of La and Ti modified KNaNbO3 ferroelectric ceramics

supported by the project PI-ICIMAF 10/11, Cuba. Postdoctoral and Sabbatical Program for the consolidation of research groups of Conacyt. M. D. Durruthy, M. Hernández-García, and J. M Yáñez are grateful for

Biological Control of the Chagas Disease Vector Triatoma infestans with the Entomopathogenic Fungus Beauveria bassiana Combined with an Aggregation Cue: Field, Laboratory and Mathematical Modeling Assessment

Background Current Chagas disease vector control strategies, based on chemical insecticide spraying, are growingly threatened by the emergence of pyrethroid-resistant Triatoma infestans populations in the Gran Chaco region of South America. Methodology and findings We have already shown that the entomopathogenic fungus Beauveria bassiana has the ability to breach the insect...

Identification of the MNN3 gene of Saccharomyces cerevisiae†

The MNN3 gene of Saccharomyces cerevisiae has been identified as a synonym of VPS74. We have compared phenotype characteristics of the original mnn3 mutant, including low dye binding phenotype, size of external invertase, clump formation, and sodium orthovanadate resistance and found these to be identical to those shown by vps74Δ. Mating of both haploid strains resulted in non...

Deregulation of Genes Related to Iron and Mitochondrial Metabolism in Refractory Anemia with Ring Sideroblasts

The presence of SF3B1 gene mutations is a hallmark of refractory anemia with ring sideroblasts (RARS). However, the mechanisms responsible for iron accumulation that characterize the Myelodysplastic Syndrome with ring sideroblasts (MDS-RS) are not completely understood. In order to gain insight in the molecular basis of MDS-RS, an integrative study of the expression and...