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https://www.readbyqxmd.com/read/28935879/interlayer-excitons-in-a-bulk-van-der-waals-semiconductor
#1
Ashish Arora, Matthias Drüppel, Robert Schmidt, Thorsten Deilmann, Robert Schneider, Maciej R Molas, Philipp Marauhn, Steffen Michaelis de Vasconcellos, Marek Potemski, Michael Rohlfing, Rudolf Bratschitsch
Bound electron-hole pairs called excitons govern the electronic and optical response of many organic and inorganic semiconductors. Excitons with spatially displaced wave functions of electrons and holes (interlayer excitons) are important for Bose-Einstein condensation, superfluidity, dissipationless current flow, and the light-induced exciton spin Hall effect. Here we report on the discovery of interlayer excitons in a bulk van der Waals semiconductor. They form due to strong localization and spin-valley coupling of charge carriers...
September 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28906578/ultra-early-hematoma-growth-in-antithrombotic-pretreated-patients-with-intracerebral-hemorrhage
#2
Jaume Roquer, Rosa María Vivanco-Hidalgo, Jaume Capellades, Angel Ois, Elisa Cuadrado-Godia, Eva Giralt-Steinhauer, Carolina Soriano-Tárraga, Marina Mola-Caminal, Maria Serra-Martínez, Carla Avellaneda-Gómez, Jordi Jiménez-Conde, Ana Rodríguez-Campello
BACKGROUND: Patients with acute intracerebral hemorrhage (ICH) pretreated with antithrombotic drugs may have increased early hematoma growth, which would increase mortality risk. We analyzed the effect of antiplatelet (AP) and vitamin-K antagonist (VKA) pretreatment on ultra-early hematoma growth (uHG), and its relationship with mortality in patients with acute supratentorial ICH. METHODS: This is an observational retrospective study of a prospective register of 197 ICH patients with first computed tomography (CT) scan taken less than 6 hours from ICH symptoms onset...
September 14, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28905097/color-doppler-and-spectral-doppler-ultrasound-detection-of-active-sacroiliitis-in-spondyloarthritis-compared-to-physical-examination-as-gold-standard
#3
Concepción Castillo-Gallego, Eugenio De Miguel, Miriam García-Arias, Chamaida Plasencia, Leticia Lojo-Oliveira, Emilio Martín-Mola
Sacroiliac joint (SIJ) involvement is a distinctive feature of spondyloarthritis (SpA). The main objective of this study was to assess the validity of color Doppler ultrasound (CDUS) in SIJ. This was a cross-sectional, blinded, case-control study of 108 cases divided into three groups: (a) 53 SpA patients with inflammatory back pain (IBP); (b) 28 SpA patients with no IBP; and (c) 27 healthy mechanical lumbar pain subjects. Physical examinations of the SIJs were assessed as positive or negative in each SIJ and were used as the gold standard...
September 13, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28901024/records-of-ocean-sunfish-mola-mola-along-the-norwegian-coast-spanning-two-centuries-1801-2015
#4
K Frafjord, T Bakken, L Kubicek, A-H Rønning, P O Syvertsen
Records of the ocean sunfish Mola mola along the Norwegian coast were compiled from all possible sources: literature, media, databases and museums. A total of 216 records were found between 1801 and 2015. They were distributed along the whole coast, except for the most north-eastern part. Nearly all years with more than five records were after 2000, with 1985 as the only exception and with a maximum of 23 records in 2014. Most, 92·4%, were from July to December. Records from before 1979 were more incidental and random and no sunfish were recorded in 54 separate years between 1879 and 2015...
September 12, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28834297/tgf-%C3%AE-1-targets-smad-p38-mapk-and-pi3k-akt-signaling-pathways-to-induce-pfkfb3-gene-expression-and-glycolysis-in-glioblastoma-cells
#5
Ana Rodríguez-García, Paula Samsó, Pere Fontova, Helga Simon-Molas, Anna Manzano, Esther Castaño, Jose Luis Rosa, Ubaldo Martinez-Outshoorn, Francesc Ventura, Àurea Navarro-Sabaté, Ramon Bartrons
In human cancers, TGF-β1 plays a dual role by acting as both a tumor suppressor and a promoter of tumor metastasis. Although TGF-β1 contributes to the metabolic reprogramming of cancer cells and tumor-associated stromal cells, little is known of the molecular mechanisms connecting this cytokine with enhanced glycolysis. PFKFB3 is a homodymeric bifunctional enzyme, belonging to the family of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatases, that controls the conversion of fructose-6-phosphate to fructose-2,6-bisphosphate...
August 20, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28795757/ph-driven-preparation-of-two-related-platinum-ii-complexes-exhibiting-distinct-cytotoxic-properties
#6
Jordi Molas Saborit, Amparo Caubet, Rosa F Brissos, Luís Korrodi-Gregório, Ricardo Pérez-Tomás, Manuel Martínez, Patrick Gamez
Reaction of cis-[PtCl2(DMSO)2] with the ligand 4-methyl-2-N-(2-pyridylmethylene)aminophenol (Hpyrimol, LH) in methanol at room temperature produces the complexes [PtCl2LH] or [PtClL], under acidic or basic conditions, respectively. The two platinum compounds exhibit distinct DNA-interacting properties, [PtCl2LH] showing a higher affinity for the biomolecules. Furthermore, [PtClL] is clearly more cytotoxic than [PtCl2LH] in three different cancer cell lines. Solution studies reveal the occurrence of intricate solvation processes generating different aquated/hydroxido species, whose nature depends on the starting metal complex and the pH of the medium...
August 29, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28792992/-trends-in-alcohol-abuse-in-brazilian-state-capitals-from-2006-to-2013-an-analysis-of-data-from-the-vigitel-survey
#7
Tiago N Munhoz, Iná S Santos, Bruno P Nunes, Christian Loret de Mola, Inácio Crochemore Mohnsam da Silva, Alicia Matijasevich
The aim of this study was to evaluate the trend in alcohol abuse in Brazil from 2006 to 2013 according to demographic, socioeconomic, and regional characteristics. This was an analysis of cross-sectional studies (VIGITEL, the Risk and Protective Factors Surveillance for Chronic Non-Communicable Diseases through Telephone Interview) that evaluated the Brazilian adult population (≥ 18 years) in the country's state capitals. Sampling was two-stage probabilistic (telephone line and adult resident). Alcohol abuse was defined as ≥ 5 drinks for men and ≥ 4 drinks for women on a single occasion, at least once in the 30 days prior to the interview...
August 7, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/28764923/association-of-rs1285933-single-nucleotide-polymorphism-in-clec5a-gene-with-dengue-severity-and-its-functional-effects
#8
Caroline Xavier-Carvalho, Renata Duarte da Silva Cezar, Naishe Matos Freire, Carla Mola, Victor Fiesta, Thiago Gomes de Toledo-Pinto, Luciana Gomes Fialho Torres, Rodrigo Feliciano do Carmo, Luydson Richardson Silva Vasconcelos, Marli Tenório Cordeiro, Paulo Baptista, Elzinandes Leal de Azeredo, Rivaldo Venâncio da Cunha, Luiz José de Souza, Antonio Guilherme Pacheco, Claire Fernandes Kubelka, Patrícia Moura, Milton Ozorio Moraes
Outbreaks of the Zika, dengue, and chikungunya viruses, especially in the Americas, pose a global threat due to their rapid spread and difficulty controlling the vector. Extreme phenotypes are often observed, from asymptomatic to severe clinical manifestations, which are well-studied in dengue. Host variations are also important contributors to disease outcomes, and many case-control studies have associated single nucleotide polymorphisms (SNPs) with severe dengue. Here, we found that the TC genotype and T-carriers for SNP rs1285933 in the C-type lectin superfamily member 5 (CLEC5A) gene was associated with severe dengue in a Northern Brazilian population (OR=2...
July 29, 2017: Human Immunology
https://www.readbyqxmd.com/read/28746406/multiple-approaches-to-understanding-the-taxonomic-status-of-an-enigmatic-new-scorpion-species-of-the-genus-tityus-buthidae-from-the-biogeographic-island-of-paraje-tres-cerros-argentina
#9
Andrés A Ojanguren-Affilastro, Renzo S Adilardi, Rodrigo Cajade, Martín J Ramírez, F Sara Ceccarelli, Liliana M Mola
Tityus curupi n. sp., belonging to the bolivianus complex, is described from the biogeographically distinct area of Paraje Tres Cerros in north-eastern Argentina. We also present a molecular species delimitation analysis between Tityus curupi n. sp. and its sister species Tityus uruguayensis Borelli 1901 to confirm species integrity. Furthermore, a cytogenetic analysis is presented for these two species which contain different multivalent associations in meiosis, as a consequence of chromosome rearrangements, and the highest chromosome numbers in the genus...
2017: PloS One
https://www.readbyqxmd.com/read/28733340/biological-age-is-better-than-chronological-as-predictor-of-3-month-outcome-in-ischemic-stroke
#10
Carolina Soriano-Tárraga, Marina Mola-Caminal, Eva Giralt-Steinhauer, Angel Ois, Ana Rodríguez-Campello, Elisa Cuadrado-Godia, Alejandra Gómez-González, Rosa M Vivanco-Hidalgo, Israel Fernández-Cadenas, Natalia Cullell, Jaume Roquer, Jordi Jiménez-Conde
OBJECTIVE: To analyze the effect of age-related DNA methylation changes in multiple cytosine-phosphate-guanine (CpG) sites (biological age [b-age]) on patient outcomes at 3 months after an ischemic stroke. METHODS: We included 511 patients with first-ever acute ischemic stroke assessed at Hospital del Mar (Barcelona, Spain) as the discovery cohort. Demographic and clinical data, including chronological age (c-age), vascular risk factors, initial stroke severity, recanalization treatment, and previous and 3-month modified Rankin Scale (p-mRS and 3-mRS, respectively) were registered...
August 22, 2017: Neurology
https://www.readbyqxmd.com/read/28718203/landscape-effects-on-pollination-networks-in-mediterranean-gypsum-islands
#11
Silvia Santamaría, Ana M Sánchez, Jesús López-Angulo, Concepción Ornosa, Iñaki Mola, Adrián Escudero
Habitat fragmentation is a major driver of global change that has operated historically on Mediterranean ecosystems. However, more needs to be understood about how fragmentation influences ecological interactions, particularly pollination. Gypsum outcrops are historically fragmented Mediterranean habitats and settings for the evolution of many endangered soil-specialist plants with narrow ranges. In this study, we aimed to determine how fragmentation (area and connectivity) affects: (i) the pollinator community composition, and (ii) the structural properties of pollination networks; and whether there are differences in the effects of fragmentation on: (iii) the number of interactions and visits among pollinator functional groups; and (iv) the number of interactions and specialization degree between soil-specialist and soil-generalist plants...
July 17, 2017: Plant Biology
https://www.readbyqxmd.com/read/28714952/a-circuit-based-mechanism-underlying-familiarity-signaling-and-the-preference-for-novelty
#12
Susanna Molas, Rubing Zhao-Shea, Liwang Liu, Steven R DeGroot, Paul D Gardner, Andrew R Tapper
Novelty preference (NP) is an evolutionarily conserved, essential survival mechanism often dysregulated in neuropsychiatric disorders. NP is mediated by a motivational dopamine signal that increases in response to novel stimuli, thereby driving exploration. However, the mechanism by which once-novel stimuli transition to familiar stimuli is unknown. Here we describe a neuroanatomical substrate for familiarity signaling, the interpeduncular nucleus (IPN) of the midbrain, which is activated as novel stimuli become familiar with multiple exposures...
September 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28711461/prevalence-of-comorbidities-in-rheumatoid-arthritis-and-evaluation-of-their-monitoring-in-clinical-practice-the-spanish-cohort-of-the-comora-study
#13
Alejandro Balsa, Leticia Lojo-Oliveira, Mercedes Alperi-López, María García-Manrique, Carmen Ordóñez-Cañizares, Lorena Pérez, Virginia Ruiz-Esquide, Alfonso Corrales, Javier Narváez, José Rey-Rey, Carlos Rodríguez-Lozano, Soledad Ojeda, Santiago Muñoz-Fernández, Joan M Nolla, José García-Torrón, Fernando Gamero, Rosario García-Vicuña, Blanca Hernández-Cruz, José Campos, José Rosas, José Francisco García-Llorente, Antonio Gómez-Centeno, Rafael Cáliz, Raimon Sanmartí, Alberto Bermúdez, Lydia Abasolo-Alcázar, Antonio Fernández-Nebro, Luis Rodríguez-Rodríguez, Carlos Marras, Miguel Ángel González-Gay, Ihsane Hmamouchi, Emilio Martín-Mola
OBJECTIVES: To describe the prevalence of comorbidities in patients with RA in Spain and discuss their management and implications using data from the Spanish cohort of the multinational study on COMOrbidities in Rheumatoid Arthritis (COMORA). METHODS: This is a national sub-analysis of the COMORA study. We studied the demographics and disease characteristics of 200 adults patients diagnosed with RA (1987 ACR), and routine practices for screening and preventing the following selected comorbidities: cardiovascular, infections, cancer, gastrointestinal, pulmonary, osteoporosis and depression...
July 12, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/28698679/raman-scattering-excitation-spectroscopy-of-monolayer-ws2
#14
Maciej R Molas, Karol Nogajewski, Marek Potemski, Adam Babiński
Resonant Raman scattering is investigated in monolayer WS2 at low temperature with the aid of an unconventional technique, i.e., Raman scattering excitation (RSE) spectroscopy. The RSE spectrum is made up by sweeping the excitation energy, when the detection energy is fixed in resonance with excitonic transitions related to either neutral or charged excitons. We demonstrate that the shape of the RSE spectrum strongly depends on the selected detection energy. The resonance of outgoing light with the neutral exciton leads to an extremely rich RSE spectrum, which displays several Raman scattering features not reported so far, while no clear effect on the associated background photoluminescence is observed...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28690598/large-diversity-and-original-structures-of-acyl-homoserine-lactones-in-strain-mola-401-a-marine-rhodobacteraceae-bacterium
#15
Margot Doberva, Didier Stien, Jonathan Sorres, Nathalie Hue, Sophie Sanchez-Ferandin, Véronique Eparvier, Yoan Ferandin, Philippe Lebaron, Raphaël Lami
Quorum sensing (QS) is a density-dependent mechanism allowing bacteria to synchronize their physiological activities, mediated by a wide range of signaling molecules including N-acyl-homoserine lactones (AHLs). Production of AHL has been identified in various marine strains of Proteobacteria. However, the chemical diversity of these molecules still needs to be further explored. In this study, we examined the diversity of AHLs produced by strain MOLA 401, a marine Alphaproteobacterium that belongs to the ubiquitous Rhodobacteraceae family...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28683133/increased-frequency-of-circulating-cd19-cd24hicd38hi-b-cells-with-regulatory-capacity-in-patients-with-ankylosing-spondylitis-as-na%C3%A3-ve-for-biological-agents
#16
María-Belén Bautista-Caro, Eugenio de Miguel, Diana Peiteado, Chamaida Plasencia-Rodríguez, Alejandro Villalba, Irene Monjo-Henry, Amaya Puig-Kröger, Paloma Sánchez-Mateos, Emilio Martín-Mola, María-Eugenia Miranda-Carús
Our objective was to study the frequency of circulating CD19+CD24hiCD38hi B cells (Breg) in AS patients. To this end, peripheral blood was drawn from AS patients naïve for TNF blockers (AS/nb) (n = 42) and healthy controls (HC) (n = 42). Six patients donated blood for a second time, 6 months after initiating treatment with anti-TNFα drugs. After isolation by Ficoll-Hypaque, PBMCs were stained with antibodies to CD3, CD4, CD19, CD24, and CD38, and examined by cytometry. For functional studies, total CD19+ B cells were isolated from PBMCs of 3 HC by magnetical sorting...
2017: PloS One
https://www.readbyqxmd.com/read/28676453/ac2-26-peptide-and-serine-protease-of-bothrops-atrox-similarly-induces-angiogenesis-without-triggering-local-and-systemic-inflammation-in-a-murine-model-of-dorsal-skinfold-chamber
#17
Rafaela Batista Molás, Marina de Paula-Silva, Rehana Masood, Anwar Ullah, Alexandre Dantas Gimenes, Sonia Maria Oliani
No abstract text is available yet for this article.
July 1, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28668515/elucidation-of-photocatalysis-photoluminescence-and-antibacterial-studies-of-zno-thin-films-by-spin-coating-method
#18
K Kaviyarasu, C Maria Magdalane, K Kanimozhi, J Kennedy, B Siddhardha, E Subba Reddy, Naresh Kumar Rotte, Chandra Shekhar Sharma, F T Thema, Douglas Letsholathebe, Genene Tessema Mola, M Maaza
The ZnO thin films have been prepared by spin coating followed by annealing at different temperatures like 300°C, 350°C, 400°C, 450°C, 500°C & 550°C and ZnO nanoparticles have been used for photocatalytic and antibacterial applications. The morphological investigation and phase analysis of synthesized thin films well characterized by X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), Photoluminescence (PL), Transmission Electron Microscopy (TEM) and Raman studies. The luminescence peaks detected in the noticeable region between 350nm to 550nm for all synthesized nanosamples are associated to the existence of defects of oxygen sites...
June 23, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28659746/effects-of-baked-and-raw-salmon-fillet-on-lipids-and-n-3-pufas-in-serum-and-tissues-in-zucker-fa-fa-rats%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2
#19
Linn A Vikøren, Aslaug Drotningsvik, Marthe T Bergseth, Svein A Mjøs, Nazanin Mola, Sabine Leh, Gunnar Mellgren, Oddrun A Gudbrandsen
Knowledge of the health impact of consuming heat-treated versus raw fish fillet is limited. To investigate effects of baked or raw salmon fillet intake on lipids and n-3 PUFAs in serum and tissues, obese Zucker fa/fa rats were fed diets containing 25% of protein from baked or raw salmon fillet and 75% of protein from casein, or casein as the sole protein source (control group) for four weeks. Salmon diets had similar composition of amino and fatty acids. Growth and energy intake were similar in all groups. Amounts of lipids and n-3 PUFAs in serum, liver and skeletal muscle were similar between rats fed baked or raw salmon fillet...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28636866/prevalence-and-risk-factors-of-chlamydia-trachomatis-neisseria-gonorrhoeae-trichomonas-vaginalis-and-other-sexually-transmissible-infections-among-women-attending-antenatal-clinics-in-three-provinces-in-papua-new-guinea-a-cross-sectional-survey
#20
Lisa M Vallely, Pamela Toliman, Claire Ryan, Glennis Rai, Johanna Wapling, Carolyn Tomado, Savarina Huliafi, Gloria Munnull, Patricia Rarau, Suparat Phuanukoonnon, Handan Wand, Peter Siba, Glen D L Mola, John M Kaldor, Andrew J Vallely
Background Papua New Guinea (PNG) is estimated to have among the highest prevalences of HIV and sexually transmissible infections (STIs) of any Asia-Pacific country, and one of the highest burdens of maternal syphilis globally. The prevalence of curable STIs, such as Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG) and Trichomonas vaginalis (TV), among pregnant women in PNG is relatively unknown. METHODS: A cross-sectional bio-behavioural survey to investigate the epidemiology of CT, NG, TV and other STIs among pregnant women in three provinces of PNG was undertaken...
October 2016: Sexual Health
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