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Strongly enhanced light trapping in a two-dimensional silicon nanowire random fractal array

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Light(Science & Applications) 2016年第1期5卷 855-861页

作者： Barbara fazio Pietro Artoni Maria Antonia Iatì Cristiano D’Andrea Maria JosèLo Faro Salvatore del Sorbo Stefano Pirotta Pietro Giuseppe Gucciardi Paolo Musumeci Cirino Salvatore Vasi Rosalba Saija Matteo Galli Francesco Priolo Alessia Irrera CNR-IPCF Istituto per i Processi Chimico Fisici98158 MessinaItaly Dipartimento di Fisica e Astronomia Universitàdi Catania95123 CataniaItaly CNR-MATIS IMM Istituto per la Microelettronica e Microsistemi95123 CataniaItaly Dipartimento di Fisica Universitàdegli Studi di Pavia27100 PaviaItaly Dipartimento di Scienze Matematiche e Informatiche Scienze Fisiche e Scienze della TerraUniversitàdi Messina98166 MessinaItaly Scuola Superiore di Catania Universitàdi Cataniavia Valdisavoia995123 CataniaItaly

We report on the unconventional optical properties exhibited by a two-dimensional array of thin Si nanowires arranged in a random fractal geometry and fabricated using an inexpensive,fast and maskless process compatible with Si *** structure allows for a high light-trapping efficiency across the entire visible range,attaining total reflectance values as low as 0.1%when the wavelength in the medium matches the length scale of maximum heterogeneity in the *** show that the random fractal structure of our nanowire array is responsible for a strong in-plane multiple scattering,which is related to the material refractive index fluctuations and leads to a greatly enhanced Raman scattering and a bright *** strong emissions are correlated on all length scales according to the refractive index *** relevance and the perspectives of the reported results are discussed as promising for Si-based photovoltaic and photonic applications.

关键词： light trapping multiple scattering Raman enhancement random fractal silicon nanowires

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胰岛素抵抗: 现在是主要预防的时间？

World Journal of Cardiology 2012年第1期4卷 1-7页

作者： Valentina Mercurio Guido Carlomagno Valeria fazio Serafino fazio department of Internal Medicine Cardiovascular and Immunologic Sciences Federico Ⅱ University of Naples

Insulin resistance is a clinical condition characterized by a decrease in sensitivity and responsiveness to the metabolic actions of insulin, so that a given concentration of insulin produces a less-than-expected biological effect. As a result, higher levels of insulin are needed to maintain normal glucose tolerance. Hyperinsulinemia, indeed, is one of the principal characteristics of insulin resistance states. This feature is common in several pathologic conditions, such as type 2 diabetes, obesity, and dyslipidemia, and it is also a prominent component of hypertension, coronary heart disease, and atherosclerosis. The presence of endothelial dysfunction, related to insulin resistance, plays a key role in the development and progression of atherosclerosis in all of these disorders. Insulin resistance represents the earliest detectable abnormality in type 2 diabetes, and is one of the major underlying mechanisms of hypertension and cardiovascular diseases. Its early detection could be of great importance, in order to set a therapeutic attack and to counteract the higher risk of diabetes and cardiovascular diseases.

关键词： Insulin resistance Hyperinsulinemia Type 2 diabetes Endothelial dysfunction

A nutraceutical combination improves insulin sensitivity in patients with metabolic syndrome

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World Journal of Cardiology 2012年第3期4卷 77-83页

作者： Flora Affuso Valentina Mercurio Antonio Ruvolo Concetta Pirozzi Filomena Micillo Guido Carlomagno Fabrizia Grieco Serafino fazio department of Clinical Medicine Cardiovascular and Immunological SciencesFederico Ⅱ Uni-versity

AIM:To test the efficacy of a proprietary nutraceutical combination in reducing insulin resistance associated with the metabolic syndrome(MetS).METHODS:Sixty-four patients with MetS followed at a tertiary outpatient clinic were randomly assigned to receive either placebo or a proprietary nutraceutical combination(AP)consisting of berberine,policosanol and red yeast rice,in a prospective,double-blind,placebo-controlled *** were performed at baseline and after 18 wk of *** homeostasis model assessment of insulin resistance(HOMAIR)index was the primary outcome *** endpoints included lipid panel,blood glucose and insulin fasting,after a standard mixed meal and after an oral glucose tolerance test(OGTT),ow-mediated dilation(FMD),and waist ***:Fifty nine patients completed the study,2 withdrew because of adverse *** 18 wk there was a signif icant reduction in the HOMA-IR index in the AP group compared with placebo(ΔHOMA respectively-0.6 ± 1.2 vs 0.4 ± 1.9;P density lipoprotein cholesterol also significantly decreased in the treatment arm compared with placebo(Δlow density lipoprotein cholesterol-0.82 ± 0.68 vs-0.13 ± 0.55 mmol/L;P des,high density lipoprotein cholesterol,and the OGTT were not *** addition,there were significant reductions in blood glucose and insulin after the standard mixed meal,as well as an increase in FMD(ΔFMD 1.9 ± 4.2 vs 0 ± 1.9 %;P < 0.05)and a significant reduction in arterial systolic blood pressure in the AP ***:This short-term study shows that AP has relevant beneficial effects on insulin resistance and many other components of MetS.

关键词： Metabolic syndrome Insulin resistance Homeostasis model assessment index Nutraceuticals Berberine

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结直肠的外科

国外学者来访报告 1995年第3期15卷 36-39页

作者： fazio,VW 武和平美国俄亥俄州克利夫兰诊所结直肠外科组

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夹层板中的聚合物

塑料科技 1981年第2期 56-62页

作者：林里雄 D.fazio 华南工学院

夹层结构是一种中间夹有复合塑料的建筑材料,这种设计使每一组元在材料中都能发挥出它的最大作用。这类夹层材料在某种条件下具有各种各样的优点。夹层结构的芯层一般是轻质材料,其上下表面层富有高弹性模量和高耐久性。这样制造的夹层... 详细信息

夹层结构是一种中间夹有复合塑料的建筑材料,这种设计使每一组元在材料中都能发挥出它的最大作用。这类夹层材料在某种条件下具有各种各样的优点。夹层结构的芯层一般是轻质材料,其上下表面层富有高弹性模量和高耐久性。这样制造的夹层板,重量轻,隔热性、抗湿性好,安装和运输都很方便。第二次世界大战时期,夹层结构大都以胶合板作表面,蜂窝结构作芯层,近年来逐渐应用了新型的材料——塑料。

关键词：玻璃纤维增强塑料玻璃纤维增强复合材料复合材料夹层板芯层聚合物大分子化合物

A New Methodological Study to Allocate Energy Crops at Different Scale Levels: a Multidirectional Approach

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A New Methodological Study to Allocate Energy Crops at Diffe...

The 18th European Biomass Conference and Exhibition

作者： Di Virgilio N. fazio S. Fernando A.L. Monti A.

Generally, the land allocation scenarios for biomass crops are based on crop requirements and environmental characteristics, mostly including climate and soil variables, whereas the backward crop effect on the same environment have been poorly considered or totally ignored. Nonetheless, despite the crop performance can be considerable under specific conditions, the environmental vulnerability to a crop-specific impact could lead to negative consequences. A crop could be in fact well adapted to a given environment in term of productivity, yet it could be highly risky for that environment, e.g. in the case of proximity of a river or a lake with crops having high leaching rates. It follows that the high potential productivity is not sufficient to establish the environmental suitability of a crop. LCA（Life Cycle Assessment） defines several indicators of the environmental impacts which could be used to classify the risk associated to a crop under specific conditions. Therefore, in the present article GIS maps on soil vulnerability to certain crop impacts（eutrophication） for a case study area were presented with the aim at identifying an LCA-GIS integrated method for decision support systems and illustrate the outlines of a bidirectional environment-to-crop oriented procedure.

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如何让企业更富创业精神

北大商业评论 2011年第11期 30-35页

作者： Francesco fazio Joel Finlayson Neil Pearse 陈一谔美国摩立特集团

企业要勇于创新,勇于把创造性与灵活性融入到企业的文化之中.这就要求企业创建富有创业精神的环境.今天,很多CEO正面临着同一个问题:如何才能营造组织的创业环境?怎样才能让组织成员更富创业家精神?

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大板结构中用于控制地震作的摩擦缝

世界地震工程 1982年第2期 35-44页

作者： Avtax S.Pall Cedric Marsh Paul fazio 刘河先

地震的地面运动在结构物上产生横向振动荷载,使结构来回摆动,其振幅与输入能量成正比。如果在结构运动过程中,输入能量能被控制并消耗掉其大部,结构的破坏程度就可大为降低。在钢构架或现浇混凝土结构中,当结构承受非弹性变形的时候,主... 详细信息

地震的地面运动在结构物上产生横向振动荷载,使结构来回摆动,其振幅与输入能量成正比。如果在结构运动过程中,输入能量能被控制并消耗掉其大部,结构的破坏程度就可大为降低。在钢构架或现浇混凝土结构中,当结构承受非弹性变形的时候,主要依靠其延

关键词：滑动荷载地震强度法向应力侧移能量耗散正应力大板结构地震反应

High Supracostal Percutaneous Nephrolithotomy Access: Assessing Safety in Access above the Eleventh Rib after Performing Preoperative Planning with Computed Tomography

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Open Journal of Urology 2015年第4期5卷 25-33页

作者： Joel E. Abbott Anthony D. DiMatteo Elise fazio Samuel G. deem Ali K. Sobh Albert dePolo Julio G. Davalos St John Providence Health Michigan State University Warren USA Charleston Area Medical Center West Virginia School of Osteopathic Medicine Charleston USA Chesapeake Urology Associates University of Maryland Glen Burnie USA

Objective: To determine if supracostal renal access above the 11th rib during percutaneous nephrolithotomy (PCNL) is a safe option in carefully selected patients determined by preoperative computed tomography (CT) imaging. Patients and Methods: We retrospectively isolated 142 patients who underwent access above the eleventh rib during PCNL, which we term “high supracostal renal access.” We then compared these patients to 113 individuals who underwent access below the twelfth rib. Renal access was achieved by the operative surgeon with fluoroscopic guidance in conjunction with pre-operative computed tomography (CT) scan. Outcomes were compared. Results: Overall surgical outcomes were equivalent when comparing high supracostal versus subcostal access sites. As expected due to proximity, pleural complications occurred in 4% of the high supracostal group (n = 6) compared with 0% of the control (subcostal) group (p = 0.035). Of these six complications, three were managed conservatively with observation and two required cardio-thoracic intervention with video-assisted thoracoscopic pleural repair (1%). In the remaining case, the patient was preoperatively consented for placement of a thoracostomy tube, which was placed during the procedure, due to the difficult location of her upper pole stone and closely adjacent low-lying pleura, and the planned transpleural approach. Hospital stay was not significantly pro-longed between the high supracostal access and subcostal access groups, with an average length of stay of 2.2 ± 2.1 days and 2.0 ± 1.9 days (p = 0.59) respectively. Conclusions: Careful, systematic preoperative planning based on CT and fluoroscopic imaging allows for a confident understanding of a “safety zone” in placement and dilatation of renal access points during PCNL. We have shown that planned upper pole renal access above the 11th rib is achievable with acceptable morbidity and excellent success rates.

关键词： Percutaneous Nephrolithotomy Calculi Endoscopic Surgical Procedure