检索结果-南通市图书馆

Suggestions for the Sustainable Development of Agriculture and the Ecological Environment in Xinjiang

在线全文

学校读者我要写书评

暂无评论

Bulletin of the Chinese Academy of Sciences 2000年第3期14卷 158-163页

作者： ca5 Academic Division of Biological Science

With the assistance of the Xinjiang Uygur Autonomous Government, a task force of the Academic Division of Biology of the Chinese Academy of Sciences (caS) carried out an investigation across the Xinjiang region from August 28 to September 14, 1998. After many repeated and in-depth deliberations, the task force, which focused on the agricultural issues involving the sustainable development of arid and semi-arid areas of the five provinces and autonomous regions in the Northwest, reached

关键词：双心丘山山甲创始

Compressed Digital Video:Accelerating the Video Communications Revolution

在线全文

学校读者我要写书评

暂无评论

The Journal of China Universities of Posts and Telecommunications 1994年第2期1卷 54-61页

作者： Wen H. Chen (Compression Labs, Inc. 2860 Junction Ave SanJose ,ca 95134)

Video is used across a range of applicaticos,from low data-rate mdeo telephony to digitalbroadcast high deftnuzontelevision. Since all applications in thts range require that digually represent-ed sequece of images be reduced in let-rtue for efficient transmision or strage, all applications can uli-lize the same core compression technology. CLI has spent nearl two decades advancing the quality andapplication of digitof video technolegy and continues to rvaluaie meny video compression techniques in-cluding fractof coding, mavelets, subband coding, the discreie cisine transform (DCT), and vectorquantization. CLI currently has concluded that the discrete cosine transform (DCT) combined with mo-tion compensation provides the best pictrue quality for a wide range of video applicarions. In face, theDCT is the technology used by telecommunicationscomputer, and consumer video standards such as H.261 ,JPEG ,adn MPEG. This paper reviews these and other digital video compression iechnologies andthen discusses how CLI applies them to dtfferent video applications. Even within standardsbased mar-kets such as that for MPEG video ditribution syuerns, different products are differentiated easily bydifferences between their proprietary methods for preprocessing ,coding mode selection, postprocessing,etc.

关键词： video compression technology diserete cosine trans form digital video processingmethod ,motion componsation

在线全文

学校读者我要写书评

暂无评论

病毒非结构蛋白作为亚单位疫苗的前景

国外医学（微生物学分册） 1989年第1期12卷 12-14,34页

作者： Gibson ca 舒浩麒

众所周知,宿主对病毒感染的免疫应答所获得的保护性免疫与抗病毒颗粒表面蛋白抗体的作用有关。此外,某些病毒内部结构蛋白在细胞免疫中也起作用。然而,最近对一些黄病毒的研究表明,一种病毒非结构蛋白—NS_1也能在不出现中和抗体的情况... 详细信息

众所周知,宿主对病毒感染的免疫应答所获得的保护性免疫与抗病毒颗粒表面蛋白抗体的作用有关。此外,某些病毒内部结构蛋白在细胞免疫中也起作用。然而,最近对一些黄病毒的研究表明,一种病毒非结构蛋白—NS_1也能在不出现中和抗体的情况下,诱导保护性免疫。黄病毒组约有70种密切相关的病毒。其中大部分是人或兽类的病原体。尽管黄热病(YF)、日本脑炎(JE)、圣路易脑炎(SLE)和蜱传脑炎(TBE)也是主要的公共卫生问题,但登革热是其中最为重要的疾病之一,

关键词：黄病毒 NSI 病毒亚单位疫苗

在线全文

学校读者我要写书评

暂无评论

粒性白细胞输注—被忽视的治疗手段

国外医学（输血及血液学分册） 1991年第2期14卷 106-107页

作者： Schiffer ca 金任天

对于治疗引致粒细胞减少的病人,感染、特别是白念珠菌和曲霉菌等真菌感染、仍是主要问题。粒细胞减少是发生感染的先导因素。若粒细胞能回升到中等数量,感染一般可获控制。使人困惑的是近5、6年不再见到新的有关粒细胞输注的文献,约75... 详细信息

对于治疗引致粒细胞减少的病人,感染、特别是白念珠菌和曲霉菌等真菌感染、仍是主要问题。粒细胞减少是发生感染的先导因素。若粒细胞能回升到中等数量,感染一般可获控制。使人困惑的是近5、6年不再见到新的有关粒细胞输注的文献,约75％的医院未采用此种疗法,因而实际上粒细胞输注已销声匿迹。回顾厉史可能有助于解释这种动向。最早宣扬粒细胞输注的文献介绍用取自髓细胞增生性白血病病人的大量白细胞进行输注,虽然缺乏对照,但其戏剧性疗效使人印象深刻而靠当时的抗菌素是难以奏效的。血液分离机出现后,又转而强调使用正常人的粒细胞。

关键词：粒性白细胞输注治疗学

Actinic Superficial Folliculitis after Sun Exposure in a 29-Year-Old Woman

在线全文

学校读者我要写书评

暂无评论

case Reports in Clinical Medicine 2016年第4期5卷 115-119页

作者： Rute Lopes caçola Pedro caiano Gil Internal Medicine Department Hospital Pedro Hispano—Unidade Local de Saúde de Matosinhos Matosinhos Portugal Internal Medicine Departament Centro Hospitalar de Vila Nova de Gaia e Espinho Vila Nova de Gaia Portugal

The authors report the clinical case of a 29-year-old caucasian woman who presented with clinicopathological findings and a previous outbreak all suggestive of actinic superficial folliculitis, a rarely reported and probably misdiagnosed phototoxic sun-induced dermatosis first described by Nieboer in 1985. Despite the exuberance of this cutaneous eruption, it is usually auto-limited, reinforcing the importance of its knowledge, for eviction of unnecessary diagnostic tests and therapies. Mechanisms of pathogenesis postulated include ultraviolet A radiation and local heat. This photodermatosis presents as monomorphic, superficial, pustular, and non-pruritic folliculitis affecting the upper body but not the face, usually arising on neck, back, shoulders and upper trunk. The follicular pustules emerge 24 - 72 h after intense exposure to heat and/or sunlight and fade spontaneously in 5 - 10 days, without scarring. This patient showed a 48-hour latency period;the number of pustules and area of the body affected were proportional to the duration of the sunlight exposure;the eruption lasted approximately 10 days. Actinic superficial folliculitis has a specific histology with follicular subcorneal sterile pustules and a mixed inflammatory infiltrate around hair follicles, probably secondary to keratinocytes and Langerhans cells involvement in the immunomodulatory actions of ultraviolet radiation. Recurrence under identical conditions may occur, after a latency period of at least 4 weeks, but usually about 1 year. Actinic superficial folliculitis and related follicular conditions are probably underdiagnosed and subsequently there is insufficient scientific information available to clinicians. Being familiar with these entities is of the utmost importance, since it can be crucial for their management.

关键词： Actinic Superficial Folliculitis Subcorneal Sterile Pustules Sun Exposure Photodermatosis

肾性骨病的组织学分型及骨活检的临床意义：附429例骨…

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中华内科杂志 1993年第7期32卷 444-447,T025页

作者：朱建民 Alle.,ca 7100612，西安医科大学第二临床医学院肾病研究室美国Colorado大学医学中心

通过对429例骨活检资料的分析，将肾性骨病分为3类：高运转型129例（30％），低运转型102例（24％），混合型198例（46％）。与其他两型比较，高运转型的校正矿化率升高，矿化时间缩短，破骨细胞数增加（P值均＜0.01）；低运转型与此相... 详细信息

通过对429例骨活检资料的分析，将肾性骨病分为3类：高运转型129例（30％），低运转型102例（24％），混合型198例（46％）。与其他两型比较，高运转型的校正矿化率升高，矿化时间缩短，破骨细胞数增加（P值均＜0.01）；低运转型与此相反；混合型校正矿化率降低，矿化时间延长，破骨细胞数也增加。骨铝的阳性率在低运转型及混合型分别为75％和80％，高运转型仅29％。生化检查结果，高运转型和混合型血清甲状旁腺素（PTH）和碱性磷酸酶较低运转型显著升高（P＜0.01），而低运转型血清磷及两种维生素D水平相对降低（P＜0.05）。从而提示，高运转型由继发性甲状旁腺机能亢进（SHP）所引起，而低运转型则与铝中毒、维生素D缺乏等原因有关。文中还讨论了骨活检的临床意义。

关键词：尿毒症组织学活检骨疾病

用户接口—在Chimera用户接口管理系统中的应用通信

在线全文

学校读者我要写书评

暂无评论

软件 1992年第10期13卷 645-661页

作者： Wood.,ca 柘彬

THE CHANGING ROLE OF THE NATIONAL LABORATORIES IN MATERIALS RESEARCH

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 1995年第Z1期8卷 245-259页

作者： WADSWORTH Jeffrey and FLUSS Michael(Chemistry and Materials Science Directorate,Lawrence Livermore National Laboratory, Livermore, ca 94551)

The role of the National Laboratories is summarized from the era of post World War II to the present time. The U.S. federal government policy for the National Laboratories and its influence on their materials science infrastructure is reviewed with respect to .determining overall research strategies, various initiatives to interact with industry (especially in recent years),building facilities that serve the nation, and developing leading edge research in the materials sciences. Despite reductions in support for research in the U.S. in recent years, and uncertainties regarding the specific policies for Research &Development (R&D) in the U.S., there are strong roles for materials research at the National Laboratories. These roles will be centered on the abilities of the National Laboratories to field multidisciplinary teams, the use of unique cutting edge facilities, a focus on areas of strength within each of the labs,increased teaming and partnerships, and the selection of motivated research areas. It is hoped that such teaming opportunities will include new alliances with China, in a manner similar, perhaps, to those recently achieved between the U.S. and other countries.

关键词： U.S. Materials Science. U.S. National Laboratories and Facilities International Partnerships

Randomized clinical study of five days apostrophe therapy with mebendazole compared to quinacrine in the treatment of symptomatic giardiasis in children

在线全文

学校读者我要写书评

暂无评论

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