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Axial length development in children

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International Journal of Ophthalmology(English edition) 2019年第5期12卷 815-819页

作者： Austin Bach victor m.Villegas Aaron S.Gold Wei Shi Timothy G.murray Larkin Eye Institute Bascom Palmer Eye Institute murray Ocular Oncology & Retina

AIm: To study ocular axial lengths in pediatric subjects without intraocular pathology. mETHODS: An Institutional Review Board-approved consecutive retrospective chart review of axial lengths measured in pediatric subjects who underwent examination under anesthesia due to positive family history of retinoblastoma or other inherited ocular disease. Only subjects without any intraocular pathology in either eye were included. Subjects were stratified into age groups. An axial length model using a logarithmic regression algorithm was ***: Data from 330 eyes of 165 subjects were included in the study. The mean age at the time of examination was 30.62(SD 18.04)mo. The steepest increase in axial length was present during the first 10 mo of life. After 36 mo, there was no statistically significant axial length growth. CONCLUSION: This study presents the biggest series of pediatric axial lengths in healthy eyes. The axial length model developed with these data may assist in the diagnosis and management of a wide variety of pediatric ophthalmic diseases.

关键词： pediatric axial length model biometry eye development

Effects of cellulose nanocrystals on the acid resistance of cementitious composites

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International Journal of minerals,metallurgy and materials 2021年第11期28卷 1745-1758页

作者： Lin-ping Wu Guang-ping Huang Chao-shi Hu Wei victor Liu School of mining and Petroleum Engineering University of AlbertaEdmontonAlberta T6G 2E3Canada Utility Planning&Design EPCOR Utilities IncEdmontonAB T5M 3B8Canada

Acid mine drainage presents an important threat to cementitious *** study is aimed at investigating the effect of cellulose nanocrystals(CNCs)on the acid resistance of cementitious *** were added to mortar mixtures as additives at cement volume ratios of 0.2vol%,0.4vol%,1.0vol%,and 1.5vol%.After 28 d of standard curing,the samples were immersed in a sulfuric acid with a pH value of 2 for 75 *** unconfined compressive strength(UCS)test,the density,water absorption,void volume test,and thermogravimetric analysis were carried out to investigate the properties of CNC mixtures before sulfuric acid *** was found that the addition of CNC reduced the volume of permeable voids and increased the hydration degree and mechanical strength of the *** in mass and length were monitored during immersion to evaluate the acid resistance of *** mixture with 0.4vol%CNC showed a reduced mass change and length change indicating its improved acid resistance.

关键词： acid resistance acid mine drainage cementitious composites cellulose nanocrystals

mass Spectrometric Analyses Reveal a Central Role for Ubiquitylation in Remodeling the Arabidopsis Proteome during Photomorphogenesis

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molecular Plant 2017年第6期10卷 846-865页

作者： victor Aguilar-Hernandez Do-Young Kim Robert J. Stankey mark Scalf Lloyd m. Smith Richard D. Vierstra Department of Biology Washington University in St. Louis Campus Box 1137 One Brookings Drive St. Louis MO 63130 USA Department of Genetics 425-G Henry Mall Department of Chemistry 1101 University Avenue University of Wisconsin-Madison Madison WI 53706 USA Advanced Bio Convergence Center Pohang Technopark Gyeong-Buk South Korea 37668

The switch from skotomorphogenesis to photomorphogenesis is a key developmental transition in the life of seed plants. While much of the underpinning proteome remodeling is driven by light-induced changes in gene expression, the proteolytic removal of specific proteins by the ubiquitin-26S proteasome system is also likely paramount. Through mass spectrometric analysis of ubiquitylated proteins affinity-purified from etiolated Arabidopsis seedlings before and after red-light irradiation, we identified a number of influential proteins whose ubiquitylation status is modified during this switch. We observed a substantial enrichment for proteins involved in auxin, abscisic acid, ethylene, and brassinosteroid signaling, peroxisome function, disease resistance, protein phosphorylation and light perception, including the phytochrome （Phy） A and phototropin photoreceptors. Soon after red-light treatment, PhyA becomes the dominant ubiquitylated species, with ubiquitin attachment sites mapped to six lysines. A PhyA mutant protected from ubiquitin addition at these sites is substantially more stable in planta upon photoconversion to Pfr and is hyperactive in driving photomorphogenesis. However, light still stimulates ubiquitylation and degradation of this mutant, implying that other attachment sites and/or proteolytic pathways exist. Collectively, we expand the catalog of ubiquitylation targets in Arabidopsis and show that this post- translational modification is central to the rewiring of plants for photoautotrophic growth.

关键词： Arabidopsis ubiquitin mass spectrometry photomorphogenesis phytochrome degradation

On High Brightness Temperature of Pulsar Giant Pulses

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Journal of Physical Science and Application 2015年第1期5卷 48-60页

作者： victor m. Kontorovich Deeametric Wave Department Institute of Radio Astronomy NAS of Ukraine Kharkov 61002 Ukraine Radio Physics Mechanics and Mathematics Departments V. N. Karazin National University Kharkov 61022 Ukraine

A wide range of events observed at the giant pulses （high energy density, observed localization of giant pulses GPs relative to the average pulse, fine structure of GPs with duration up to some nanoseconds, observed circular polarization of GPs, correlation between the GP phase and the phase of the hard pulsar emission X-ray and gamma） can be explained from the viewpoint that the internal polar gap is a cavity-resonator stimulated by discharges and radiating through the breaks in the magnetosphere. The new results in this field [the electromagnetic （era） waves generation in the gap in the process of longitudinal acceleration in the electric field vanishing on the star surface, high frequency break in the spectrum as a result of switching off this generation, formation in this process a power-low spectrum with a high frequency （hf） break, the possibility determination of pulsar magnetic field by the hf break position, the difference between main pulse and inter pulse mechanism generation, quantization of em tornado rotation in the gap and appearance of the bands in the inter pulse spectrum, influence the high energy density in the gap on pair generation and position of the dead line in pulsars] are added in the intermediate epilogue.

关键词： Pulsars giant pulses inner gap cavity-resonator spark rotation electromagnetic tornado.

Hepatic rupture secondary to HELLP syndrome: outcomes in three cases

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World Journal of Emergency medicine 2024年第1期15卷 56-58页

作者： Salvador Gomez-Carro Ruben R.Lozano-Salazar Kassandra Santos-Zaldívar victor Andres Villasuso-Alcocer Nina méndez-Domínguez O'Horan General Hospital Merida 97000Mexico Highly Specialized Hospital of the Yucatan Peninsula Merida 97134Mexico National Institute of Perinatology.mexico City 11000 Mexico

Hypertensive disorders of pregnancy,including chronic hypertension,gestational hypertension,and preeclampsia,are the most common complications in pregnant women,affecting approximately 15%of pregnancies.[1,2]Hemolysis,elevated liver enzymes,and low platelet count(HELLP syndrome)can occur in 0.2%-0.6%of all pregnancies,and 10%-15%of patients are diagnosed with preeclampsia.[3,4]Among its severe complications,liver hematoma is remarkable and may lead to liver *** identification of HELLP syndrome is crucial for proper therapeutic management and to avoid fatal outcomes[4,5]since when a hepatic hematoma occurs,the risk of rupture increases to 12%.[3,5]

关键词： rupture HELLP hypertension pregnancy

Spontaneous exudative retinal detachment in a patient with sturge-weber syndrome after taking arginine, a supplement for erectile dysfunction

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Eye and Vision 2014年第1期1卷 46-50页

作者： Austin Bach Aaron S Gold victor m Villegas Andrea C Wildner Fiona J Ehlies Timothy G murray Larkin Community Hospital 7031 SW 62nd AvenueSouth MiamiFlorida 33143USA murray Ocular Oncology&Retina 6705 Red RoadSuite 412MiamiFlorida 33143USA.

Background:Patients with Sturge-Weber syndrome can have ipsilateral diffuse or circumscribed choroidal *** hemangiomas have been seen to undergo spontaneous exudative or hemorrhagic retinal *** is no definitive treatment for these types of retinal detachments,but radiotherapy,photodynamic therapy,oral propranolol,pegaptinib and bevacizumab have been *** presentation:A 26-year-old male with Sturge-Weber Syndrome developed an exudative retinal detachment that occurred immediately after taking a supplement containing *** patient was treated with intravitreal bevacizumab 1.25 mg in 0.05 ml *** of the retinal detachment was seen after 4 treatments over a six-month ***:Arginine and other medications that cause a release of nitric oxide may lead to intravascular leakage and exudative retinal detachments in patients who have a choroidal hemangioma.

关键词： Sturge-Weber Syndrome Exudative retinal detachment Choroidal hemangioma Nitric oxide arginine

Superior electrocatalytic activity of mesoporous Au film templated from diblock copolymer micelles

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Nano Research 2016年第6期9卷 1752-1762页

作者： Cuiling Lil Bo Jiang Hungru Chen masataka Imura Liwen Sang victor malgras Yoshio Bando Tansir Ahamad Saad m. Atshehri Satoshi Tominaka Yusuke Yamauchi World Premier International (WPI) Research Center for materials Nanoarchitectonics (mANA) National Institute for Materials Science (NIMS) I- 1 Namiki Tsukuba Ibaraki 305-0044 Japan Faculty of Science and Engineering Waseda University 3-4-10kubo Shinjuku Tokyo 169-8555 Japan Department of Chemistry University of Bath Bath BA2 7AY UK Department of Chemistry College of Science King Saud University Riyadh 11451 Saudi Arabia

mesoporous Au films consisting of a network of interconnected Au ligaments around ultra-large pores were found to exhibit a promising electrocatalytic activity towards sluggish reactions. mesoporous Au films with pore sizes up to 25 nm were successfully fabricated using a polymeric micelle approach. A superior catalytic activity of the mesoporous Au films towards methanol oxidation was confirmed, which was thoroughly analyzed and compared with that of other Au materials. An intrinsic investigation on the high catalytic activity revealed that the superior performance of the as-prepared mesoporous Au film was related to its unique atomic structures around the mesopores with well- crystallized facets and several step/kink sites on the Au surfaces. These findings showcase a strategic and feasible design for preparing highly active Au-based catalysts that could be used as promising candidates in electrocatalytic applications.

关键词： block copolymers mesoporous materials mesoporous metals gold electrocatalysts

The spatial variability of actual evapotranspiration across the Amazon River Basin based on remote sensing products validated with flux towers

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Ecological Processes 2019年第1期8卷 67-86页

作者： victor Hugo da motta Paca Gonzalo E.Espinoza-Dávalos Tim m.Hessels Daniel medeiros moreira Georges F.Comair Wim G.m.Bastiaanssen IHE Delft Institute for Water Education Westvest 7Delft 2611 AXNetherlands TU Delft DelftNetherlands CPRm-Geological Survey of Brazil Rio de JaneiroBrazil World Bank WashingtonD.C.USA

Actual evapotranspiration(ET)is a major component of the water *** several international flux measurement programs have been executed in the tropical rain forest of the Amazon,those measurements represent the evaporative process at a few selected sites *** aim of this study is to obtain the spatial distribution of ET,using remote sensing techniques,across the entire Amazon River *** from six global ET products based on remote sensing techniques(GLEAm,SEBS,ALEXI,CmRSET,mOD16,and SSEBop)were merged to obtain an ensemble prediction of the ET rates for the complex and in-accessible environment of the Amazon at a spatial resolution of 250 *** study shows that the basinwide average ET is 1316 mm/year with a standard deviation of 192 mm/*** new ET-Amazon product was validated against seven different historic flux tower *** energy balance closure of the in situ measurements varied between 86 and 116%.Only months with more than 70%completeness of in situ measurements were considered for *** procedures for closure correction were included in the *** correlation between measured and remotely sensed ET is good(R2>0.97 for consecutive periods of 2 to 12months),and the bias correction is negligible for the energy balance residual method,which seemed most *** ET values have more *** monthly RmSE values vary between 7.4 and 27.8 mm/month(the average RmSE is 22.2mm/month),and the coefficient of determination(R2)varies between 0.48 and 0.87(the average R2 is 0.53).The ET from the water balance is 1380 mm/year,being−64 mm/year difference and 4.6%less than ET derived from the water *** evaporation from the Amazon basin inside Brazil is 5063 km3/year,followed by Peru with 1165 km3/***-Amazon shows more spatial details and accuracy than alternative global ET products such as LandFlux-EVAL,model Tree Ensemble(mTE),and *** justifies the development of new regional ET pro

关键词： Amazon River Basin Evapotranspiration Flux towers measurements ET-Amazon product

Effect of molarity on sol-gel routed nano TiO_(2) thin films

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Journal of Advanced Dielectrics 2017年第6期7卷 57-63页

作者： Stephen Lourduraj Rayar victor Williams PG and Research Department of Physics St.Joseph’s College(Autonomous)Tiruchirapalli Tamil NaduIndia

The nanostructured titanium dioxide(TiO_(2))thin films have been prepared for the molar concentrations of titanium tetra isopropoxide(TTIP)0.05 m,0.1 m,0.15 m and 0.2 m by sol-gel routed spin coating technique with calcination at 450℃.The processing parameters such as,pH value(8),catalyst HCl(0.1 ml),spin speed(3000 rpm)and calcination temperature(450℃)are *** crystalline nature and surface morphology were analyzed by XRD,SEm and AFm *** XRD results confirm that the films are crystalline with anatase phase,and are *** SEm micrographs of the TiO_(2) film reveal the spherical nature of the *** analysis establishes that the uniformity of the TiO_(2) thin film was optimized at 0.2 *** optical measurements show that the transmittance depends on the molarity,and the optical band gap energy of TiO_(2) films is found to be inversely proportional to *** I-V characteristics exhibit that the molarity strongly influences the electrical conductivity of the *** results indicate that the significant effect of molarity on structural,optical and electrical properties of the nanostructured TiO_(2) thin films will be useful to photovoltaic application.

关键词： TiO_(2)thin film titanium tetra isopropoxide sol-gel precursor concentration calcination temperature