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World Journal of Gastroenterology 2006年第39期12卷 6366-6370页

作者： Roberto caete Angel A Escobedo María E González Pedro Almirall Hygiene Epidemiology and Microbiology Centre Matanzas City Cuba Academic Paediatric Hospital "Pedro Borrás" Havana City Cuba Institute of Gastro-enterology Havana City Cuba "Pedro Kourí" Institute Havana City Cuba

AIM： To compare the efficacy and safety of five days apostrophe therapy of mebendazole （MBZ） versus quinacrine （QC） on human giardiasis in children.METHODS： A clinical trial was carried out in paediatric patients （aged 5-15 years） with confirmed symptomatic G. duodenalis mono-infection. Patients were randomly assigned to receive either MBZ [200 mg taken three times per day GRID）（n = 61）] or QC [2 mg/kg bodyweight tid （n = 61）], both for five days. Follow-up faecal samples were obtained at 3, 5 and 7 d after the end of the treatment.RESULTS： Although the frequency of cure was higher for QC （83.6%） than for MBZ （78.7%）, the difference was not statistically significant （P 〉 0.05）. Adverse events were reported more in the QC group （P 〈 0.05）, all of them transient and self-limiting.CONCLUSION： Despite final cure rates ocurring lower than expected, the overall results of this study reconfirmed the efficacy of MBZ in giardiasis and also indicate that, although comparable to QC, at least in this setting the 5 d course of MBZ did not appear to improve the cure rates in this intestinal parasitic infection.

关键词： Giardia infection/drug therapy Children Me- bendazole/therapeutic use Quinacrine/therapeutic use Benzimidazoles/therapeutic use Giardiasis/drug therapy Cuba

A Filament-Associated Halo Coronal Mass Ejection

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Chinese Journal of Astronomy and Astrophysics 2001年第1期1卷 85-98页

作者： Jun Zhang, Jingxiu Wang, and Nariaki Nitta ( Beijing Astronomical Observatory, National Astronomical Observatories,Chinese Academy of Sciences, Beijing 100012 Lockheed Martin Solar and Astrophysics Laboratory, Palo Alto, ca 94304, USA) Beijing Astronomical Observatory National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 Lockheed Martin Solar and Astrophysics Laboratory Palo Alto CA 94304 USA

There are only a few observations published so far that show the initiation of a coronal mass ejection (CME) and illustrate the magnetic changes in the surface origin of a CME. Any attempt to connect a CME with its local solar activities is meaningful. In this paper we present a clear instance of a halo CME initiation. A careful analysis of magnetograms shows that the only obvious magnetic changes in the surface region of the CME is a magnetic flux cancellation underneath a quiescent filament. The early disturbance was seen as the slow upward motion in segments of the quiescent filament. Four hours later, the filament was accelerated to about 50 km s-1 and erupted. While a small part of the material in the filament was ejected into the upper corona, most of the mass was transported to a nearby region. About forty minutes later, the transported mass was also ejected partially to the upper corona. The eruption of the filament triggered a two-ribbon flare, with post-flare loops connecting the flare ribbons. A halo CME, which is inferred to be associated with the eruptive filament, was observed from LASCO/C2 and C3. The halo CME contained two CME events, each event corresponded to a partial mass ejection of the filament. We suggest that the magnetic reconnection at the lower atmosphere is responsible for the filament eruption and the halo CME.

关键词： Sun: filament - Sun: magnetic fields-Sun: coronal mass ejection

用户接口—在Chimera用户接口管理系统中的应用通信

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软件 1992年第10期13卷 645-661页

作者： Wood.,ca 柘彬

Posterior gut development in Drosophila:a model system for identifying genes controlling epithelial morphogenesis

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Cell Research 1998年第4期8卷 273-284页

作者： LENGYEL JUDITH A XUE JUN LIU (Department of Molecular, Cell and Developmental Biology University of california at Los Angeles, Los Angeles, ca USA, 90095-1606 USA) Department of Molecular Cell and Developmental Biology University of California at Los Angeles Los Angeles USA

The posterior gut of the Drosophila embryo, consisting of hindgut and Malpighian tubules, provides a simple,well-defined system where it is possible to use a genetic approach to define components essential for epithelial *** review here the advantages of Drosophila as a model genetic organism, the morphogenesis of the epithelial structures of the posterior gut, and what is known about the genetic requirements to form these *** overview, primordia are patterned by expression of hierarchies of transcription factors; this leads to localized expression of cell signaling molecules, and finally, to the least understood step: modulation of cell adhesion and cell shape. We describe approaches to identify additional genes that are required for morphogenesis of these simple epithelia, particularly those that might play a structural role by affecting cell adhesion and cell shape.

关键词： Organogenesis cell rearrangement convergent extension hindgut Malpighian tubule

SYNTHESIS AND APPLIcaTIONS OF NANOMATERIALS IN MICROELECTRONICS

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化工学报 2000年第S1期51卷 173-177页

作者： Kuang Xiumeng and Virissimo David C. (Hi-Q Materials, Inc. 2516 Katherine Street.El cajon, ca 92020)

The technology boom in microelectronics and telecommunication industry has presented a unique opportunity for nanomaterials. Nanomaterials enable the creation of unique devices, components and systems through the control of matter on a near molecular level. These new devices, components and systems will exhibit novel physical, chemical, mechanical, electrical, optical and biological properties. The synthesis processes of nanomaterials are reviewed and the applications of nanomatorials in microelectronics are discussed in this paper.

关键词： Nanomaterials Nanotechnology Chemical Engineering Microelectronics

Stability of Time-Dependent Diffusion Semigroups and Kernels

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Acta Mathematica Sinica,English Series 1999年第4期15卷 575-586页

作者： Weian ZhengDepartment of Mathematics,University of california,Irvine,ca92612,U S ADepartment of Statistics,East China Normal University,Shanghai 200062,P.R.China E-mail:wzhengmath.uci.edu Department of Mathematics University of California Irvine USA Department of Statistics East China Normal University Shanghai P. R. China

The main result of this paper is that when the coefficients of the time-dependent divergence form operators are Hlder continuous in time with order not too much smaller than （1/2）,the distance of the semigroups of t... 详细信息

关键词： Time-dependent diffusion semigroups Stability Hlder continuous

Comparative Analysis of Four Stem Taper Models for Quercus glauca in Mount Halla,Jeju Island,South Korea

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Journal of Mountain Science 2014年第2期11卷 442-448页

作者： LUMBRES Roscinto Ian canicosa LEE Young Jin CHOI Hyung Soon KIM Sung Yong JANG Mi Na ABINO Azyleah caizares SEO Yeon Ok KIM Chan Soo PARK Jung Hwan Department of Forest Resources Kongju National University College of Forestry- Benguet State University La Trinidad Benguet 2601 Philippines Warm Temperate and Subtropical Forest Research Center Korea Forest Research Institute

This study was conducted to fit the diameter-height data of Quercusglaucain Jeju Island, South Korea to the four commonly used stem taper equations andto evaluate the performance of the four stem taper models using four statistical criteria： Fit index （FI）, root mean square error （RMSE）, bias （）,and absolute mean difference （AMD）. Results showed that the Kozak02stem taper equation provided the best FI（0.9847）, RMSE（1.5745）,（-0.0030 cm） and AMD （1.0990 cm） whileMax and Burkhart model had the poorest performance among the four stem taper models based on the four evaluation statistics （FI ： 0.9793,RMSE ： 1.8272, ： 0.3040 cm and AMD ： 1.3060 cm）. These stem taper equations can serve as a useful tool for forest managers in estimating the diameter outside bark at any given height, merchantable stem volumes and total stem volumesof the standing trees of Quercusglaucain theGotjawal forests located in Mount Halla, Jeju Island, South Korea.

关键词： MountHalla Merchantable stem volume Diameter outside bark Kozak model Model evaluation

Prenatal and pubertal testosterone exposure imprint permanent modifications in the prostate that predispose to the development of lesions in old Mongolian gerbils

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Asian Journal of Andrology 2017年第2期19卷 160-167页

作者： Manoel F Biancardi Ana PS Perez cassia RS caires Luiz R Falleiros Jr Rejane M Goes Patricia SL Vilamaior Diogenes R Freitas Jr Fernanda ca Santos Sebastiao R Taboga Department of Structural and Functional State University of Campinas Av. Bertrand Russel s/n Campinas Sao Paulo 13084864 Brazil 2Department of Histology Embryology and Cell BiologyFederal University of Goias Samambaia II Goiania Goias 74001970 Brazil University Estadual Paulista - UNESP Department of Biology Laboratory of Microscopy and Microanalysis Rua Cristovao Colombo 2265 Sao Jose do Rio Preto Sao Paulo 15054000 Brazil Medical School Federal University of Goias Colemar Natal e Silva Goiania Goias 74001970 Brazil

The prostate is an accessory sex gland that develops under precise androgenic control. It is known that hormonal imbalance may disrupt its development predisposing this gland to develop diseases during aging. Although the hypothesis regarding earlier origins of prostate diseases was proposed many years ago, the mechanisms underlying this complex phenomenon are poorly understood. Therefore, the aim of this study was to evaluate the prostates of old male gerbils exposed to testosterone during intrauterine and postnatal life using morphological, biometrical, stereological, Kariometric, immunohistochemical, and immunofluorescence analyses. Our findings demonstrate that prenatal and pubertal exposure to testosterone increases the susceptibility to the development of prostate diseases during aging. The presence of a more proliferative gland associated with foci of adenomatous hyperplasia in animals exposed to testosterone during the prenatal and pubertal phase show that the utero life and the pubertal period are important phases for prostatic morphophysiology establishment, which is a determinant for the health of the gland during aging. Therefore, these findings reinforce the idea that prostate disease may result from hormonal disruptions in early events during prostate development, which imprint permanently on the gland predisposing it to develop lesions in later stages of life.

关键词： adenomatous hyperplasia endocrine-disrupting chemicals gerbil prostate development testosterone

Radiation protection for the interventional cardiologist:Practical approach and innovations

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World Journal of cardiology 2022年第1期14卷 1-12页

作者： Alejandro Gutierrez-Barrios Dolores cañadas-Pruaño Inmaculada Noval-Morillas Livia Gheorghe Ricardo Zayas-Rueda German calle-Perez Department of cardiology Hospital Puerta del MarCadiz 11009Spain

Use of ionizing radiation during cardiac catheterization interventions adversely impacts both the patients and medical *** recent years,radiation dose in cardiac catheterization interventions has become a topic of increasing interest in interventional cardiology and there is a strong interest in reducing radiation exposure during the *** review presents the current status of radiation protection in the cardiac catheterization laboratory and summarizes a practical approach for radiation dose management for minimizing radiation *** review also presents recent innovations that have clinical potential for reducing radiation during cardiac interventions.

关键词： Radiation cardiac catheterization Quality improvement cathlab Ionizing radiation