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Determination of the Stabilization Time of the Solution-Air Interface for Aggregates Formed by NaC in Mixtures with SDS and PEO, Investigated by Dynamic Surface Tension Measurements

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Soft 2014年第1期3卷 1-10页

作者： Grasiele Raupp Arlindo C. Felippe Tiago Elias Allievi Frizon Luciano da silva Marcos marques da silva Paula Alexandre G. dal-Bó Universidade do Extremo Sul Catarinense (UNESC) Criciúma Brazil Universidade Federal da Fronteira Sul (UFFS) Chapecó Brazil

The properties of mixtures of poly (ethylene oxide) (PEO) and mixed micelles formed from sodium cholate (NaC) and sodium dodecyl sulfate (SDS) in tris/HCl buffered solutions at pH 9.00 were investigated by measuring the mean surface tension. The variation in the superficial tension as a function of the time after formation of solutions containing PEO and NaC was characterized by monitoring the time required for the system to reach equilibrium between the micellar and aqueous phases. These results could serve as a reference for the minimum aging time required for solutions before any surface tension measurements can be performed.

关键词： Poly (Ethylene Oxide) Micelles Sodium Cholate Sodium Dodecyl Sulfate

Optical coherence tomography angiography in wet age-related macular degeneration(AMD)

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Eye Science 2016年第1期31卷 1-3页

作者： Joao Pedro marques Rufino silva Department of Ophthalmology Centro Hospitalar e Universitairio de Coimbra(CHUC)3000-075 CoimbraPortugal Association for Innovation and Biomedical Research on Light and Image(MBILI) 3000-548 CoimbraPortugal Faculty of Medicine University of Coimbra(FMUC)CoimbraPortugal

Over the last decades,substantial developments in retinal imaging offered a paradigmatic change in the understanding of the pathophysiology of wet age-related macular degeneration(AMD).We have reached a point of sophi... 详细信息

关键词：年龄相关 AMD 血管造影断层扫描光学相干变性黄斑病理生理学

Effect of Dissolved Oxygen and Inoculum Concentration on Xylose Reductase Production from <i>Candida guilliermondii</i>Using Sugarcane Bagasse Hemicellulosic Hydrolysate

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Food and Nutrition Sciences 2011年第3期2卷 235-240页

作者： thais Suzane dos Santos Milessi Anuj Kumar Chandel Ricardo de Freitas Branco Sílvio Silvério da silva 不详

This work evaluated the effect of dissolved oxygen and the initial inoculum concentration on xylose reductase (XR) production by Candida guilliermondii from sugarcane bagasse hemicellulosic hydrolysate. Both the parameters were studied under an experimental design 22 with triplicate at central point. The statistical analysis of the results indicated a significant negative effect on XR production from the variable inoculum. The variable dissolved oxygen also showed a negative effect on XR production. We found the maximum enzyme activity (2.5 U?mg?1) when both the factors were applied at their lowest levels. The yeast showed to be potentially capable for xylose reductase production when sugarcane bagasse hemicellulosic hydrolysate was used as carbon source. Also, the results presented important information for further optimization of xylose reductase attainment.

关键词： Xylose Reductase Sugarcane Bagasse Candida Guilliermondii Experimental Design

Technical Evaluation of Eye Drops Instillation： A Systematic Review

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Journal of Pharmacy and Pharmacology 2017年第6期5卷 349-358页

作者： Carlos Adriano S. Souza Caique Brito Rezende daniel Tenorio da silva Divaldo P de Lyra Junior Isla Alcantara Gomes thais dos Santos Ramos Francilene Amaral da silva Nucleus of Research in Natural Products and Phytotherapics Department of Pharmacy Federal University of Sergipe Sao Cristovao 49100-000 Brazil Laboratory of Education and Research in Social Pharmacy Department of Pharmacy Federal University of Sergipe Sao Cristovao 49100-000 Brazil Laboratory of Pharmaceutical Testing and Toxicity Department of Pharmacy Federal University of Sergipe Sao Cristovao 49100-000 Brazil

Objective： Assess the profile of eye drops in patients with eye diseases. Methods： Studies available in the scientific literature were identified without any time limits using the databases Embase-Medline, Scielo, Scopus and Web of Knowledge. The selected studies were compared with the following inclusion criteria：（i） if the study evaluated the eye drop instillation, （ii） if the study involved participation of patients with eye diseases. Results： Twelve studies met the inclusion criteria. Of them, 83.33% evaluated the technique of eye drop instillation in patients with glaucoma, 8.33% in patients with eye diseases and 8.33% in patients with cataract after undergoing surgery to correct. 41.66% of studies have chosen to record a video of patients to analyze the technique of instilling eye drops and 41.66% did not describe the/esearch location. Regarding the type of study, 75% had the design as prospective cross-sectional, 8.33% prospective open label study, 8.33% intervention study and 8.33% study called masked trial. Although studies evaluate the technique of eye drop instillation, only 8.33% describe in the article the reference in the literature used to evaluate patients. 50% of articles acknowledged some sort of bias or limitation. Conclusion： The limitations inherent in these types of studies should guide future research.

关键词： Eye drop instillation eye diseases ophthalmic solutions.

Cardiac Complications in Maroteaux-Lamy Syndrome： Case Report

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Journal of Pharmacy and Pharmacology 2018年第4期6卷 410-414页

作者： Ricardo Siqueira Gongalves Claudia Aparecida marques Landim Jesuita Mendes Cornelio Joaquim Tomaz da silva Graduating in Medicine. Universidade do Estado de Mato Grosso--UNEMAT Liga Academica de Cardiologia e Cirurgia Department of Cardiology and Intensive Medicine--Universidade do Estado de Mato Grosso--UNEMAT Liga Academica de Cardiologia e Cirurgia Cardiovascular (LACCIC) Caceres--MT 78200-000 Brazil Department of Pediatric Nursing--Hospital Municipal de Unai-MG (HMU) Unai-MG 38610-000 Brazil Department of General Surgery~Hospital Municipal de Unai-MG (HMU) Unai--MG 38610-000 Brazil

MLS （Maroteaux-Lamy syndrome） or MPS VI （mucopolysaccharidosis VI） is an autosomal recessive pathology in which there is absence or low activity of the enzyme N-Acetylgalactosamine-4-Sulfatase, which hydrolyzes GAGs （glycosaminoglycans） in the body （mainly dermatan sulfate）. Consequently, there occurs lysosomal deposition of GAGs in connective tissue multisystemic. Myocardium and heart valves are frequently affected structures, presenting a direct correlation with the reports of complications and deaths. Case report： RGS, male, 3 years and 2 months, diagnosed with MPS VI from the first month of life, in weekly ERT （enzyme replacement therapy） since 4 months of age （inconstant）. At physical examination： normotensive, with holosystolic heart murmur 3＋/6＋ in mitral focus. Complementary tests： normal electrocardiogram, echocardiogram with pronounced mitral regurgitation, concentric left ventricular hypertrophy of moderate degree and mild aortic insufficiency. Discussion： Mitral valve disease is common in patients with MLS. Conditions such as cardiomyopathy, fibroelastosis, aneurysm and pulmonary hypertension may occur in these patients, indicative of morbidity and mortality. Early and constant ERT may be useful in slowing a progression of heart disease. Conclusions： follow-up with a cardiologist is important to evaluate the progression of cardiac complications in MPS VI. Constant and early ERT provides better prognosis for these patients.

关键词： Mucopolysaccharidosis VI N-acetylgalactosamine-4-sulfatase mitral valve insufficiency enzyme replacement therapy.

Large ferro-pyro-phototronic effect in 0.5Ba(Zr_(0.2)Ti_(0.8))O_(3)-0.5(Ba_(0.7)Ca_(0.3))TiO_(3)thin films integrated on silicon for photodetection

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Carbon Energy 2023年第6期5卷 1-10页

作者： JoséP.B.silva Katarzyna Gwozdz Luís S.marques Mario Pereira Maria J.M.Gomes Judith L.MacManus‐Driscoll Robert L.Z.Hoye Centre of Physics of Universities of Minho and Porto(CF‐UM‐UP) University of MinhoBragaPortugal Laboratory of Physics for Materials and Emergent Technologies LapMETUniversity of MinhoBragaPortugal Department of Quantum Technologies Faculty of Fundamental Problems of TechnologyWroclaw University of Science and TechnologyWroclawPoland Department of Materials Science and Metallurgy CambridgeUK Inorganic Chemistry Laboratory Department of ChemistryUniversity of OxfordOxfordUK Department of Materials Imperial College LondonLondonUK

Coupling together the ferroelectric,pyroelectric,and photovoltaic characteristics within a single material is a novel way to improve the performance of *** this work,we take advantage of the triple multifunctionality shown by 0.5Ba(Zr_(0.2)Ti_(0.8))O_(3)-0.5(Ba_(0.7)Ca_(0.3))TiO_(3)(BCZT),as demonstrated in an Al/Si/SiOx/BCZT/ITO thin-film *** Si/SiOx acts as an n-type layer to form a metal-ferroelectric-insulator-semiconductor heterostructure with the BCZT,and with Al and ITO as *** photo-response of the device,with excitation from a violet laser(405 nm wavelength),is carefully investigated,and it is shown that the photodetector performance is invariant with the chopper frequency owing to the pyro-phototronic effect,which corresponds to the coupling together of the pyroelectric and photovoltaic ***,the photodetector performance was significantly better than that of the devices operating based only on the pyro-phototronic effect by a factor of 4,due to the presence of ferroelectricity in the ***,after a poling voltage of−15 V,for a laser power density of 230mW/cm^(2)and at a chopper frequency of 400Hz,optimized responsivity,detectivity,and sensitivity values of 13.1mA/W,1.7×10^(10)Jones,and 26.9,respectively,are ***,ultrafast rise and fall times of 2.4 and 1.5μs,respectively,are obtained,which are 35,000 and 36,000 times faster rise and fall responses,respectively,than previous reports of devices with the ferro-pyro-phototronic *** is understood based on the much faster ferroelectric switching in ferroelectric thin films owing to the predominant 180°domains in a single direction out of plane.

关键词： ferroelectric ferro-pyro-phototronic effect photodetector polarization-controlled response

Drying,Storage and Osmotic Conditioning of Psidium guineense Swartz Seeds

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American Journal of Plant Sciences 2014年第17期5卷 2591-2598页

作者： Tathiana Elisa Masetto Eliane marques da silva Neves silvana de Paula Quintao Scalon daiane Mugnol Dresch Federal University of Grande Dourados in Dourados DouradosBrazil

This study aimed to evaluate the tolerance of Psidium guineense Swartz seeds to air-dry storage and priming. Desiccation tolerance was analyzed for seed moisture content of 15%, 10% and 5%. The longevity of seeds during storage was analyzed in seeds with 5% and 10% moisture content maintained in cold and dry chamber (16°C ± 1°C/40% RH), laboratory environment (25°C ± 2°C/60% RH), refrigerator (5°C ± 1°C) and freezer (-18°C ± 1°C) during 90 days, and the priming effect in seeds that were imbibed for 5 or 10 days in polyethylene glycol 6000 at osmotic potentials of -0.3 MPa, -0.5 MPa, -0.7 MPa and -1.3 MPa. The quality of seeds was evaluated after desiccation, storage, and priming by the seeds germination, fresh weight of seedlings, seedlings growth, and germination medium time. The experimental design was completely randomized, with four replications of 25 seeds each one. Although a reduction in seed germination and seedling growth was observed in seeds with 10% and 5% moisture content, drying did not cause complete loss of seed germination and seedling development. Sour guava seeds exhibited an orthodox response to desiccation tolerance and storage. Seed germination and seedling growth were reduced with increased osmotic potential of osmoconditioning. However, conditioning of 10 days increased the seeds germination and optimized the average germination time to 20 days. The seeds of Psidium guineense are able to tolerate desiccation and storage for up to 90 days at a temperature of 5°C ± 1°C and priming for 10 days is a promising technique for propagation of P. guineense.

关键词： Myrtaceae Brazilian Savannah Longevity Polyethylene Glycol

Analysis of Forging Dies Coated with Tungsten Carbide through HVOF Processing

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Journal of Mechanics Engineering and Automation 2016年第7期6卷 373-378页

作者： Vanessa Moura de Souza Angela Selau marques Jorge Antoenio Huff Alexandre da silva Rocha Luciano Kempski GES (Group of Engineering Surface) Federated University of Rio Grande do Sul Porto Alegre Brazil

In this paper we present a performance evaluation of thermal spraying coated hot forging dies conducted in a production line. The High Velocity Oxy-Fuel process was used for the deposition of a tungsten carbide coating, which is characterized by its optimal adherence and low porosity. A metallurgical characterization of the layer was previously done, in order to obtain reference information to assist in the interpretation of the practical tests results. The coated die allowed an increase in productivity of 37.5%, besides better dimensional stability results through the process and legibility of printed numbers.

关键词： Hot forging coating die surface.

On Applying Lower Bound Estimates in Pseudo-Boolean Optimization

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On Applying Lower Bound Estimates in Pseudo-Boolean Optimiza...