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https://www.readbyqxmd.com/read/29731312/use-of-lignocellulosic-wastes-of-pecan-carya-illinoinensis-in-the-cultivation-of-ganoderma-lucidum
#1
María Virginia Ozcariz-Fermoselle, Raúl Fraile-Fabero, Tomás Girbés-Juan, Oscar Arce-Cervantes, Juan Andrés Oria de Rueda-Salgueiro, Anabela Marisa Azul
BACKGROUND: The wastes of pecan nut (Carya illinoinensis (Wangenh.) K. Koch) production are increasing worldwide and have high concentrations of tannins and phenols. AIMS: To study the biodegradation of lignocellulosic wastes of pecan used as solid substrate for the cultivation of the white-rot fungus Ganoderma lucidum (Curtis) P. Karst. METHODS: Six formulations of pecan wastes were used as solid substrate: pecan shells (PS100), pecan pericarp (PP100), pecan wood-chips (PB100), and the combinations PS50+PP50, PB50+PS50 and PB50+PP50...
May 3, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29691036/nanofibers-of-cellulose-bagasse-from-agave-tequilana-weber-var-azul-by-electrospinning-preparation-and-characterization
#2
Miguel Ángel Robles-García, Carmen Lizette Del-Toro-Sánchez, Enrique Márquez-Ríos, Arturo Barrera-Rodríguez, Jacobo Aguilar, José A Aguilar, Francisco Javier Reynoso-Marín, I Ceja, R Dórame-Miranda, Francisco Rodríguez-Félix
In this study, cellulose of bagasse from Agave tequilana Weber var. azul was extracted to elaborate nanofibers by the electrospinning technique. Fiber characterization was performed using Transmission Electron Microscopy (TEM), x-ray, Fournier Transform-InfraRed (FT-IR) spectroscopy, and thermal analysis by Differential Scanning Calorimetry-Thermogravimetric Analysis (DSC-TGA). Different diameters (ranging from 54.57 ± 0.02 to 171 ± 0.01 nm) of nanofibers were obtained. Cellulose nanofibers were analyzed by means of x-ray diffraction, where we observed a total loss of crystallinity in comparison with the cellulose, while FT-IR spectroscopy revealed that the hemicellulose and lignin present in the agave bagasse were removed...
July 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29689818/fleas-insecta-siphonaptera-with-public-health-relevance-in-domestic-pigs-artiodactyla-suidae-from-argentina
#3
Juliana Patricia Sanchez, MarÍa Cecilia Ezquiaga, Melanie Ruiz
The presence of fleas can have a great negative impact on the productivity and well-being of the animals, and can contribute towards propagation of causative pathogens of important diseases in animals and humans. Fleas and domestic pigs (Sus scrofa Linnaeus, 1758) are a known association. However, knowledge about fleas on pigs in Argentina is scarce. In this country, swine farming has become one of the main components of livestock production. This activity is primarily carried out by smallholder farmers, involving a potential risk to humans of acquiring pathogens...
January 17, 2018: Zootaxa
https://www.readbyqxmd.com/read/29660187/increased-flexibility-in-the-use-of-exogenous-lipoic-acid-by-staphylococcus-aureus
#4
Irina Laczkovich, Wei Ping Teoh, Sarah Flury, James P Grayczyk, Azul Zorzoli, Francis Alonzo
Lipoic acid is a cofactor required for intermediary metabolism that is either synthesized de novo or acquired from environmental sources. The bacterial pathogen Staphylococcus aureus encodes enzymes required for de novo biosynthesis, but also encodes two ligases, LplA1 and LplA2, that are sufficient for lipoic acid salvage during infection. S. aureus also encodes two H proteins, GcvH of the glycine cleavage system and the homologous GcvH-L encoded in an operon with LplA2. GcvH is a recognized conduit for lipoyl transfer to α-ketoacid dehydrogenase E2 subunits, while the function of GcvH-L remains unclear...
April 16, 2018: Molecular Microbiology
https://www.readbyqxmd.com/read/29655380/cryoprotectant-agents-and-cooling-effect-on-embryos-of-macrobrachium-amazonicum
#5
Caroline Costa Lucas, Luana Rolim Melo, Míriam Luzia Nogueira Martins de Sousa, Glayciane Bezerra de Morais, Moisés Fernandes Martins, Francisco Antônio Félix Xavier, Janaina Serra Azul Monteiro Evangelista, Célia Maria de Souza Sampaio
SummaryThere are few reports of cryopreservation and injuries in Macrobrachium amazonicum embryos. Thus, the aim of this study was to analyze the effects of cryoprotectants agents and cooling on stage VIII of this species. Fertilized eggs from ovigerous females were removed from the incubation chamber, then placed in 10 ml Falcon tubes with a cryoprotectant solution and saline-free calcium solution. Thus, the embryos underwent a cooling curve of 1°C per min until reaching 5°C, and then were stored for 2 h...
April 15, 2018: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/29417384/effects-of-agave-fructans-agave-tequilana-weber-var-azul-on-body-fat-and-serum-lipids-in-obesity
#6
Eduardo Padilla-Camberos, Carla P Barragán-Álvarez, Nestor E Diaz-Martinez, Vineet Rathod, José Miguel Flores-Fernández
Obesity affects millions of people worldwide, constituting a public health problem associated with premature mortality. Agave fructans decrease fat mass, body and liver weight, and generate satiety in rodents. In the present study the effects of agave fructans on weight control, lipid profile, and physical tolerability were evaluated in obese people. Twenty-eight obese volunteers were randomly divided into two groups. In the first group, 96 mg/bw of agave fructans was administered for 12 weeks; in the second group, maltodextrin as a placebo was administered for 12 weeks...
March 2018: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/29397028/drought-stress-and-tree-size-determine-stem-co-2-efflux-in-a-tropical-forest
#7
Lucy Rowland, Antonio C L da Costa, Alex A R Oliveira, Rafael S Oliveira, Paulo L Bittencourt, Patricia B Costa, Andre L Giles, Azul I Sosa, Ingrid Coughlin, John L Godlee, Steel S Vasconcelos, João A S Junior, Leandro V Ferreira, Maurizio Mencuccini, Patrick Meir
CO2 efflux from stems (CO2_stem ) accounts for a substantial fraction of tropical forest gross primary productivity, but the climate sensitivity of this flux remains poorly understood. We present a study of tropical forest CO2_stem from 215 trees across wet and dry seasons, at the world's longest running tropical forest drought experiment site. We show a 27% increase in wet season CO2_stem in the droughted forest relative to a control forest. This was driven by increasing CO2_stem in trees 10-40 cm diameter...
February 3, 2018: New Phytologist
https://www.readbyqxmd.com/read/29273818/do-transmasculine-speakers-present-with-gender-related-voice-problems-insights-from-a-participant-centered-mixed-methods-study
#8
David Azul, Aron Arnold, Christiane Neuschaefer-Rube
Purpose: The purpose of this study was to investigate whether there are indications of gender-related voice problems in our transmasculine participants and to analyze how discrepancies between participant self-evaluations and researcher-led examinations can be best negotiated to ensure a participant-centered interpretation. Method: We conducted a participant-centered mixed-methods study combining qualitative content analyses of semistructured interviews, acoustical voice analyses, and an examination of gender attributions to voice...
January 22, 2018: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/29239754/characterization-of-rhodococcus-sp-a5-wh-isolated-from-a-high-altitude-andean-lake-to-unravel-the-survival-strategy-under-lithium-stress
#9
Carolina Belfiore, María V Curia, María E Farías
Lithium (Li) is widely distributed in nature and has several industrial applications. The largest reserves of Li (over 85%) are in the so-called "triangle of lithium" that includes the Salar de Atacama in Chile, Salar de Uyuni in Bolivia and Salar del Hombre Muerto in Argentina. Recently, the use of microorganisms in metal recovery such as copper has increased; however, there is little information about the recovery of lithium. The strain Rhodococcus sp. A5wh used in this work was previously isolated from Laguna Azul...
November 24, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/29232732/high-salt-intake-promotes-different-responses-to-urodilatin-and-uroguanylin-in-the-isolated-rat-kidney
#10
Antonio Rafael Coelho Jorge, Pedro Henrique Sá Costa, Helena Serra Azul Monteiro, Manassés Claudino Fonteles
Urodilatin (UD) and uroguanylin (UGN) have been implicated in the regulation of salt and water homeostasis, particularly in the balance handling of salt intake. In this sense, the aim of the present work was to study the main effects of these peptides in kidneys from animals subjected to high NaCl (2%) intake, during 10 days in metabolic cages. The control group received only normal water, whereas the treated group drank 2% solution of NaCl (NaCl 2%). In addition, we studied effect of subthreshold UD (0.14 nM) and UGN (0...
February 2018: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/29152643/differences-in-tibial-shape-among-the-prehispanic-inhabitants-from-gomera-punta-azul-el-hierro-and-gran-canaria-canary-islands
#11
Emilio González-Reimers, María Castañeyra-Ruiz, Aioze Trujillo-Mederos, Matilde Arnay-de-la-Rosa
The Canary Archipelago was colonized by North African Berbers who arrived at the Islands in the first millenium BC. Although it was classically considered that the prehispanic population was more or less uniform, recent genetic analysis has disclosed that some differences did exist between inhabitants of the different islands. From pure anthropometrical point of view, detailed inspection of some bones such as tibiae of prehispanic inhabitants of different islands allow the detection of some differences in tibial shape, especially regarding the relative size of both the proximal and distal thirds of these bones...
December 1, 2017: Anthropologischer Anzeiger; Bericht über die Biologisch-anthropologische Literatur
https://www.readbyqxmd.com/read/29032281/differences-in-mother-to-infant-bonding-according-to-type-of-c-section-elective-versus-unplanned
#12
María Azul Forti-Buratti, Inmaculada Palanca-Maresca, Lourdes Fajardo-Simón, Ibone Olza-Fernández, María Fe Bravo-Ortiz, Miguel Ángel Marín-Gabriel
Aim To compare the mother-to-infant bond of mothers who gave birth by elective C-section versus urgent C-section in the first 48-72h of life and 10-12weeks after delivery. METHODS: This is a cohort prospective study of women giving birth by C-section. 48-72h after delivery, sociodemographic variables were collected, Mother-to-Infant Bonding Scale and newborn's response to separation test were performed. 10-12weeks after delivery Mother-to-Infant Bonding Scale and questions about baby's feeding were completed...
October 12, 2017: Early Human Development
https://www.readbyqxmd.com/read/28962073/tracking-pesticide-fate-in-conventional-banana-cultivation-in-costa-rica-a-disconnect-between-protecting-ecosystems-and-consumer-health
#13
Annelle Mendez, Luisa E Castillo, Clemens Ruepert, Konrad Hungerbuehler, Carla A Ng
Conventional banana cultivation in Costa Rica relies on heavy pesticide use. While pesticide residues in exported bananas do not generally represent a safety concern for consumers abroad, ecosystem and human health in producing regions are not likewise protected. In Costa Rica, most studies on pesticide residues in the environment are snapshots, limiting our ability to identify temporal dynamics that can inform risk mitigation strategies. To help bridge this gap, we created a dynamic multimedia model for the Caño Azul River drainage area, which is heavily influenced by banana and pineapple plantations...
February 1, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/28938859/redox-sensing-by-fe-2-in-bacterial-fur-family-metalloregulators
#14
Azul Pinochet-Barros, John D Helmann
SIGNIFICANCE: Iron is required for growth and is often redox active under cytosolic conditions. As a result of its facile redox chemistry, iron homeostasis is intricately involved with oxidative stress. Bacterial adaptation to iron limitation and oxidative stress often involves ferric uptake regulator (Fur) proteins: a diverse set of divalent cation-dependent, DNA-binding proteins that vary widely in both metal selectivity and sensitivity to metal-catalyzed oxidation. Recent Advances: Bacteria contain two Fur family metalloregulators that use ferrous iron (Fe2+ ) as their cofactor, Fur and PerR...
October 31, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28837825/renal-effects-of-bunodosoma-caissarum-crude-extract-prostaglandin-and-endothelin-involvement
#15
René Duarte Martins, Roberta Jeane Bezerra Jorge, Renata de Sousa Alves, Antônio Gomes da Silva Neto, Paulo Sergio F Barbosa, Alice Maria Costa Martins, Marcos H Toyama, Helena Serra Azul Monteiro
Sea anemones contain a variety of interesting biologically active compounds, including some potent toxins. PLA2 from Bunodosoma caissarum, a sea anemone endemic in the Brazilian southern coast, has shown renal alterations on isolated kidney. The aim of this study was to evaluate the renal and vascular effects of B. caissarum crude extract (BcE) on isolated perfused kidney and arteriolar mesenteric bed, as well the involvement of prostaglandins and endothelin. BcE did not show any effect on arteriolar mesenteric bed, but increased perfusion pressure, renal vascular resistance, urinary flow, glomerular filtration rate and decreased the percentage of sodium tubular transport on isolated perfused kidney...
November 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28769671/a-new-species-of-semiarboreal-toad-of-the-rhinella-festae-group-anura-bufonidae-from-the-cordillera-azul-national-park-peru
#16
Juan C Cusi, Jiří Moravec, Edgar Lehr, Václav Gvoždík
A new semiarboreal species of the Rhinella festae group is described from montane forests of the Cordillera Azul National Park between 1245 and 1280 m a.s.l. in the Cordillera Oriental, San Martín region, northern Peru. The new species is morphologically and genetically compared with members of the Rhinella acrolopha group (former genus Rhamphophryne) and members of the R. festae group. The new species is characterized by its large size (female SVL 47.1-58.3 mm, n = 4), eight presacral vertebrae, fusion of the sacrum and coccyx, long protuberant snout, snout directed slightly anteroventral in lateral view, cranial crests moderately developed, absence of occipital crest, presence of tympanic membrane, dorsolateral rows of small conical tubercles extending from parotoid gland to groin, hands and feet with long digits, fingers basally webbed and toes moderately webbed...
2017: ZooKeys
https://www.readbyqxmd.com/read/28760509/pulmonary-mechanic-and-lung-histology-induced-by-crotalus-durissus-cascavella-snake-venom
#17
Joselito de Oliveira Neto, João Alison de Moraes Silveira, Daniel Silveira Serra, Daniel de Araújo Viana, Diva Maria Borges-Nojosa, Célia Maria Souza Sampaio, Helena Serra Azul Monteiro, Francisco Sales Ávila Cavalcante, Janaina Serra Azul Monteiro Evangelista
This study have analyzed the pulmonary function in an experimental model of acute lung injury, induced by the Crotalus durissus cascavella venom (C. d. cascavella) (3.0 μg/kg - i.p), in pulmonary mechanic and histology at 1 h, 3 h, 6 h, 12 h and 24 h after inoculation. The C. d. cascavella venom led to an increase in Newtonian Resistance (RN), Tissue Resistance (G) and Tissue Elastance (H) in all groups when compared to the control, particularly at 12 h and 24 h. The Histeresivity (η) increased 6 h, 12 h and 24 h after inoculation...
July 28, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28693020/propiedades-biomec%C3%A3-nicas-de-la-membrana-limitante-interna-tras-recibir-tratamiento-intrav%C3%A3-treo-con-ocriplasmina
#18
Franziska Vielmuth, Ricarda G Schumann, Volker Spindler, Armin Wolf, Renate Scheler, Wolfgang J Mayer, Paul B Henrich, Christos Haritoglou
Objetivo: Evaluar la rigidez de la membrana limitante interna (MLI) humana y evaluar los posibles cambios de las propiedades mecánicas tras administrar una inyección intravítrea de ocriplasmina para tratar la tracción vitreomacular. Métodos: Este estudio se compone de una serie de casos intervencionales y comparativos de 12 muestras de MLI extraídas mediante cirugía y obtenidas de forma consecutiva de 9 ojos de 9 pacientes después de someterse sin éxito a vitreólisis farmacológica con ocriplasmina...
2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28682268/assessment-of-homomorphic-analysis-for-human-activity-recognition-from-acceleration-signals
#19
Sebastian Rodrigo Vanrell, Diego Humberto Milone, Hugo Leonardo Rufiner
Unobtrusive activity monitoring can provide valuable information for medical and sports applications. In recent years, human activity recognition has moved to wearable sensors to deal with unconstrained scenarios. Accelerometers are the preferred sensors due to their simplicity and availability. Previous studies have examined several \azul{classic} techniques for extracting features from acceleration signals, including time-domain, time-frequency, frequency-domain, and other heuristic features. Spectral and temporal features are the preferred ones and they are generally computed from acceleration components, leaving the acceleration magnitude potential unexplored...
July 3, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28481025/sorption-and-desorption-of-glyphosate-in-mollisols-and-ultisols-soils-of-argentina
#20
Ana Maria Gómez Ortiz, Elena Okada, Francisco Bedmar, José Luis Costa
In Argentina, glyphosate use has increased exponentially in recent years as a result of the widespread adoption of no-till management combined with genetically modified glyphosate-resistant crops. This massive use of glyphosate has created concern about its potential environmental impact. Sorption-desorption of glyphosate was studied in 3 Argentinean soils with contrasting characteristics. Glyphosate sorption isotherms were modeled using the Freundlich equation to estimate the sorption coefficient (Kf ). Glyphosate sorption was high, and the Kf varied from 115...
October 2017: Environmental Toxicology and Chemistry
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