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Structural Studies on <i>ι</i>-Carrageenan Derived Oligosaccharides and Its Application

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Advances in Chemical Engineering and Science 2014年第1期4卷 17-22页

作者： Annabelle v. Briones Toshinori Sato Department of Biosciences and Informatics Keio University Yokohama Japan Industrial Technology Development Institute DOST Complex Taguig City Philippines

Mild hydrochloric acid hydrolysis of i-carrageenan from Eucheuma spinosum yielded two oligosaccharides of sulfated tetrasaccharide structure. These were characterized by Fourier Transform Infrared Spectroscopy (FT-IR), Nuclear Magnetic Resonance (NMR) and Electrospray Ionization Mass Spectrometry (ESIMS). Both oligosaccharides have structure of b-D-galactopyranose(Galp)4S-(1→4)-α-D-AnGalp2S-(1→3)-b-D-galactopyranose Galp)4S-(1→4)-α-D-AnGalp2S-(1→3). Application of the resulting oligosaccharides on protein delivery system in terms of encapsulation efficiency was performed.

关键词： Carrageenan Oligosaccharides Protein Delivery Hydrolysis

Classification of Normal and Pathological voice Using SvM and RBFNN

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Journal of Signal and Information Processing 2014年第1期5卷 1-7页

作者： v. Sellam J. Jagadeesan Department of Computer Science and Engineering SRM University Chennai India

The identification and classification of pathological voice are still a challenging area of research in speech processing. Acoustic features of speech are used mainly to discriminate normal voices from pathological voices. This paper explores and compares various classification models to find the ability of acoustic parameters in differentiating normal voices from pathological voices. An attempt is made to analyze and to discriminate pathological voice from normal voice in children using different classification methods. The classification of pathological voice from normal voice is implemented using Support vector Machine (SvM) and Radial Basis Functional Neural Network (RBFNN). The normal and pathological voices of children are used to train and test the classifiers. A dataset is constructed by recording speech utterances of a set of Tamil phrases. The speech signal is then analyzed in order to extract the acoustic parameters such as the Signal Energy, pitch, formant frequencies, Mean Square Residual signal, Reflection coefficients, Jitter and Shimmer. In this study various acoustic features are combined to form a feature set, so as to detect voice disorders in children based on which further treatments can be prescribed by a pathologist. Hence, a successful pathological voice classification will enable an automatic non-invasive device to diagnose and analyze the voice of the patient.

关键词： Terms—Pitch Formants Jitter Shimmer Reflection Coefficients SvM RBFNN

Generalization of the Force Approach to Radiation Reaction

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Journal of Applied Mathematics and Physics 2017年第3期5卷 569-573页

作者： Gustavo v. López Departamento de Física Universidad de Guadalajara Guadalajara Mexico

A new approach to radiation reaction for the correction of the linear and circular motion of a charged particle takes into account the emission of electromagnetic radiation due to its acceleration. This new formulation was based on expressing the radiation reaction force in terms of the external force rather than the acceleration of the charge. In this paper, a generalization of the radiation reaction force in terms of the external force approach is formulated for any arbitrary motion of the charged particle. This generalization includes the linear and circular acceleration cases previously investigated.

关键词： Synchrotron Radiation Radiation Reaction Force Relativistic Charged Particle

水合物地层低温钻井液对井底岩石表层强度影响

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中国石油大学学报（自然科学版） 2015年第4期39卷 147-153页

作者：刘天乐蒋国盛宁伏龙张凌 CHIXOTKIN v F 王韧王瑜岩土钻掘与防护教育部工程中心湖北武汉430074 中国地质大学工程学院湖北武汉430074 中国地质大学工程技术学院北京100083

由于天然气水合物仅在高压低温条件下稳定存在,为了保持水合物稳定,在钻井过程中宜采用低温钻井液,而在低温条件下钻井液能否对井底岩石表层起到软化作用,对于提高机械钻速具有重要意义。在分析钻井液对井底岩石表层软化作用机制的基础... 详细信息

由于天然气水合物仅在高压低温条件下稳定存在,为了保持水合物稳定,在钻井过程中宜采用低温钻井液,而在低温条件下钻井液能否对井底岩石表层起到软化作用,对于提高机械钻速具有重要意义。在分析钻井液对井底岩石表层软化作用机制的基础上,较系统地建立低温钻井液软化井底岩石表层定量评价方法,以清水为对比浆液,通过试验将6种水合物地层模拟钻井液(分别含有质量分数为0.1%的表面活性剂和有机盐处理剂)在低温条件下对薄片砂岩试样的软化效果进行对比。结果表明:相比于两种有机盐处理剂,含表面活性剂的4种模拟钻井液在低温条件下对岩样软化效果更好,有利于提高岩石破碎效率和机械钻速;4种含表面活性剂钻井液中,含十二烷基硫酸钠(SDS)钻井液对岩样的软化效果最好。

关键词：天然气水合物地层低温钻井液岩石表层强度砂岩试样软化

Transanal endoscopic microsurgery: The first attempt in treatment of rectal amyloidoma

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World Journal of Gastroenterology 2015年第4期21卷 1324-1328页

作者： Richa Sharma virgilio v George Department of General Surgery School of MedicineIndiana UniversityIndianapolisIN 46202United States

Localized amyloidosis is characterized by amyloid protein deposition restricted to one organ or tissue without systemic involvement. Gastrointestinal manifestations of localized amyloidoma are unusual, which makes amyloidoma restricted to the rectum a very rare diagnosis requiring a high index of suspicion. We present a rare account for rectal amyloidoma with an unusual presentation of obstructive symptoms and its treatment using a sophisticated surgical modality, transanal endoscopic microsurgery(TEM), which resulted in complete excision of the lesion without hospitalization and complications. The successful treatment for thisrectal amyloidoma using TEM emphasizes the need to broaden its application in the treatment of various rectal lesions while preserving organ function and decreasing recurrence.

关键词： Transanal endoscopic microsurgery Amyloidoma Local

富血小板血浆和乏血小板血浆包被的屏障膜对成骨细胞附着的影响

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中华口腔医学杂志 2007年第8期42卷 496-500页

作者：徐燕蒋勇林潇 Bartold PM Marino v 安徽医科大学口腔医学院.口腔医院牙周科合肥230032 安徽医科大学口腔医学院病理科合肥230032 安徽医科大学卫生管理学院 Colgate Australian Clinical Dental Research Centre Dental SchoolUniversity of Adelaide

目的观察富血小板血浆(piateletrich plasma,PRP)和乏血小板血浆(platelet poorplasma,PPP)包被的屏障膜对人牙槽骨成骨细胞附着的影响。方法取第4代人牙槽骨成骨细胞用于实验。健康成人的全血经过两次离心得到 PRP 和 PPP。将 A 膜(Gor... 详细信息

目的观察富血小板血浆(piateletrich plasma,PRP)和乏血小板血浆(platelet poorplasma,PPP)包被的屏障膜对人牙槽骨成骨细胞附着的影响。方法取第4代人牙槽骨成骨细胞用于实验。健康成人的全血经过两次离心得到 PRP 和 PPP。将 A 膜(GoreTex-ePTFE^(TM)膜)、B 膜(GoreTex-Resolut^(TM)膜)和 C 膜(Inion-GTR^(TM)膜)冲切成直径为3 mm 的圆片并同定于24孔培养板底,用盖玻片作为阳性对照,将包被液分为 PRP、PPP、磷酸盐缓冲液(phosphate buffer solution,PBS)3个组,分别包被屏障膜或玻片(仅用磷酸盐)2 h,将成骨细胞以5×10~7个/L 每孔接种于屏障膜或玻片上并孵育24 h 使细胞附着。苏木素染色,光镜下观察并计数,扫描电镜观察成骨细胞附着膜上的形态。结果 PRP 组包被的 A、B、C 膜上的细胞数分别为23、35和41;PPP 组包被的 A、B、C 膜上的细胞数分别15、12和22;PBS 包被的 A、B、C膜上的细胞数分别为3、4和6。成骨细胞在 PRP、PPP 组的附着数量明显高于磷酸盐组(P<0.05);PRP 组较 PPP 组的附着数量多(P<0.05);盖玻片上的附着数量显著多于3种屏障膜。3种屏障膜相比,B 膜和 C 膜的成骨细胞附着量高于 A 膜(P<0.05)。扫描电镜结果显示,PRP 组屏障膜上成骨细胞呈梭形,贴壁好,膜表面可见血小板、交织成网状的纤维蛋白,细胞呈现复层生长;PPP 组或磷酸盐组成骨细胞贴壁不完全,呈圆形。结论 PRP 和 PPP 能促进成骨细胞在屏障膜上的附着数量;PRP 能改善成骨细胞在屏障膜上的附着方式。

关键词：血浆血小板成骨细胞引导组织再生膜

Antihypertensive drugs and glucose metabolism

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World Journal of Cardiology 2014年第7期6卷 517-530页

作者： Christos v Rizos moses S Elisaf Department of Internal Medicine School of MedicineUniversity of Ioannina

Hypertension plays a major role in the development and progression of micro-and macrovascular ***,increased blood pressure often coexists with additional cardiovascular risk factors such as insulin *** a result the need for a comprehensive management of hypertensive patients is ***,the various antihypertensive drug categories have different effects on glucose ***,angiotensin receptor blockers as well as angiotensin converting enzyme inhibitors have been associated with beneficial effects on glucose *** channel blockers(CCBs)have an overall neutral effect on glucose ***,some members of the CCBs class such as azelnidipine and manidipine have been shown to have advantageous effects on glucose *** the other hand,diuretics andβ-blockers have an overall disadvantageous effect on glucose *** note,carvedilol as well as nebivolol seem to differentiate themselves from the rest of theβ-blockers class,being more attractive options regarding their effect on glucose *** adverse effects of some blood pressure lowering drugs on glucose metabolism may,to an extent,compromise their cardiovascular protective *** a result the effects on glucose homeostasis of the various blood pressure lowering drugs should be taken into account when selecting an antihypertensive treatment,especially in patients which are at high risk for developing diabetes.

关键词： Hypertension Glucose metabolism Antihypertensive drugs

Sugar intake from sweetened beverages and diabetes:A narrative review

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World Journal of Diabetes 2021年第9期12卷 1530-1538页

作者： Tung-Sung Tseng Wei-Ting Lin Gabrielle v Gonzalez Yu-Hsiang Kao Lei-Shih Chen Hui-Yi Lin Behavioral and Community Health Sciences School of Public HealthLouisiana State University Health Sciences CenterNew OrleansLA 70112United States Department of Global Community Health and Behavioral Sciences School of Public Health&Tropical MedicineTulane UniversityNew OrleansLA 70112United States Department of Health and Kinesiology Texas A&M UniversityCollege StationTX 77843United States Biostatistics Program School of Public HealthLouisiana State University Health Sciences CenterNew OrleansLA 70112United States

Type 2 diabetes mellitus(T2DM)is one of the fastest growing public health concerns around the ***-sweetened beverage(SSB)consumption has been proven to be associated with adverse health consequences in the diabetic *** SSB consumption,body weight control,healthy diets,and increased physical activity have been suggested as strategies to improve diabetes prevention and *** literature review provides an overview of:(1)The association between SSB consumption and the risk of T2DM;(2)Types of SSB consumption and T2DM;(3)The effect of obesity and inflammation on the association between SSB consum-ption and risk of T2DM;and(4)SSB consumption in T2DM *** is still work to be done to determine how SSB consumption is related to T2DM,but the current research on identifying the association between SSB consumption and T2DM is promising,with the most promising studies confirming the connection between SSBs,T2DM risk,and diabetes *** studies should explore more effective SSB related diabetes prevention and management interventions.

关键词： Sugar-sweetened beverages Type 2 diabetes mellitus Inflammation Obesity Diabetes management

Editorial-Forest Ecosystems

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Forestry Studies in China 2014年第1期16卷 1-3页

作者： Yin Weilun Klaus v Gadow Beijing Forestry University University of Gōttingen University of Stellenbosch

Welcome to this first issue of Forest Ecosystems,a peerreviewed,international Open Access journal managed and financed by the Beijing Forestry University,and published in cooperation with *** journal will seek to provide an effective platform for sharing knowledge in a paperless publication process where all published articles may be freely downloaded and will be permanently *** Editorial Board includes 30distinguished scientists from 13 countries:ecologists,economists,modelers and an environmental consultant with a science *** this launch editorial,fol-

关键词： Editorial-Forest Ecosystems