检索结果-南通市图书馆

作者： (南非)j.m. 库切(j.m. Coetzee)

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冰穹C的大气条件:天文含意

天文学报 2007年第1期48卷 48-53页

作者： j.S.Lawrence m.C.B.Ashley m.G.Burton j.W.V.Storey School of Physics University of New South WalesSydneyNSW 2052Australia

在南极洲高原的冰穹C有望发现非凡的天文观测条件,受此鼓舞,许多国际小组协同努力对该地的大气条件作全面的测量．评述对冰穹C的选址现况,讨论过去、现在和计划中的选址仪器,迄今已得到的结果,以及这些结果的天文含意．

关键词：选址地球南极洲高原冰穹C

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Influence of phosphorus on the performance of cowpea (Vigna unguiculata (L) Walp.) varieties in the Sudan savanna of Nigeria

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Agricultural Sciences 2011年第3期2卷 313-317页

作者： A. Singh A. L. Baoule H. G Ahmed A. U. Dikko U. Aliyu m. B. Sokoto j. Alhassan m. musa B. Haliru Department of Crop Science Usmanu Danfodiyo University Sokoto Nigeria Department of Crop Science Usmanu Danfodiyo University Sokoto Nigeria Department of Soil Science and Agricultural Engineering Usmanu Danfodiyo University Sokoto Nigeria

Savanna regions of Nigeria are deficient in nitrogen and phosphorus, which retard the growth and yield of crops. Therefore, a study was conducted in the wet season of 2006 at the Dry Land Teaching and Research Farm of Usmanu Danfodiyo University, Sokoto to evaluate the effect of phosphorus on the growth and yield of two cowpea varieties sourced from Republic of Niger. Treatment consisted of four (4) rates of phosphorus (0, 20, 40, 60 ***–1) factorialy combined with (2) varieties of cowpea (kvx303096G and TN5-78) and laid out in a randomized complete block design (RCBD) replicated three (3) times. Results showed significant response to applied P on pods per plant, grain and stover yield and 100-seed weight with highest response to the application of 60 ***–1. From this study it can be concluded that KVX303096G and TN5-78 could both be sown under Sokoto condition to obtain reasonable yield of about 1 ***–1 of grain and 1.6 ***–1 of stover. Irrespective of the varieties, application of 60 kg P2O5 ha–1 could be recommended for higher yield of cowpea (1.4 ***–1) relative to 0 ***–1 that yielded 1.0 ***–1.

关键词： Cowpea [Vigna Unguiculata (L.) Walp.] Phosphorus Sudan Savanna Nigeria

Secretoneurin和神经原性炎症(英文)

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中国药理学报 1999年第9期20卷 789-794页

作者： Christian j.WIEDERmANN Stefan DUNZENDORFER Christian m K■HLER Norbert REINISCH Peter SCHRATZBERGER Laboratory of Intensive Care medicine Division of General Internal Medicine Department of Internal Medicine University of Innsbruck Anichstrasse 35 A-6020 Innsbruck AustriaLaboratory of Intensive Care Medicine Division of General Internal Medicine Department of Internal Medicine University of Innsbruck Anichstrasse 35 A-6020 Innsbruck AustriaLaboratory of Intensive Care Medicine Division of General Internal Medicine Department of Internal Medicine University of Innsbruck Anichstrasse 35 A-6020 Innsbruck AustriaLaboratory of Intensive Care Medicine Division of General Internal Medicine Department of Internal Medicine University of Innsbruck Anichstrasse 35 A-6020 Innsbruck AustriaLaboratory of Intensive Care Medicine Division of General Internal Medicine Department of Internal Medicine University of Innsbruck Anichstrasse 35 A-6020 Innsbruck Austria

AIm: Review of evidence that the 33-amino-acidpolypeptide secretoneurin, which is generated byproteolytic cleavage of secretogranin Ⅱ, plays a role inneurogenic inflammation. mETHODS: Survey of theliterature using a mEDLINE search database. RE-SULTS: Secretoneurin is synthesized in spinalganglia, transported through the dorsal roots and storedin the axon terminals of primary afferent *** using capsaicin suggest that secretoneurinfunctions as an excitatory transmitter. Secretoneurinspecifically activates various cell functions including thechemotactic migration of monocytes, eosinophils,fibroblasts, smooth muscle cells, and endothelial cells,

关键词： secretoneurin 免疫系统神经原性炎症炎症

让学生幻想——是浪费时间,还是创造性的过程?

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世界科学 1980年第4期 44-45页

作者： j. Chadbourne B. m. Foulk 赵天岗

人们常常向学生提出带有批评含意的问题:“亨利,你是在幻想吗?”当一个儿童幻想时,他实际上是在做什么——是在逃避,还是在创造性的思考?幻想可能是一种逃避,也可能是使学生进行真正学习的一种想象的形式。漫无边际的幻想常常是浪费光阴... 详细信息

人们常常向学生提出带有批评含意的问题:“亨利,你是在幻想吗?”当一个儿童幻想时,他实际上是在做什么——是在逃避,还是在创造性的思考?幻想可能是一种逃避,也可能是使学生进行真正学习的一种想象的形式。漫无边际的幻想常常是浪费光阴,毫无用处。然而,当受儿童或教师的引导时,幻想是有用的。我们发现,从小学直到研究院,每一阶段的学校,幻想都是一种有价值的教和学的工具。引导成为想象的幻想是一种使学生集中注意力、丰富课程

关键词：集中注意力放松右半球儿童

metabolic Acidosis in the Surgical Intensive Care Unit: Risk Factors, Clinical Correlates and Outcome. Findings from a High Dependency Heart and Vascular Surgical Center in Nigeria

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World j.urnal of Cardiovascular Surgery 2020年第11期10卷 226-241页

作者： P. K. Uduagbamen m. Sanusi O. B. Udom O. F. Salami A. D. Adebaj. O. j. Alao Division of Nephrology and Hypertension Department of Internal Medicine Ben Carson (Snr) School of Medicine Babcock University/Babcock University Teaching Hospital Ilishan-Remo Nigeria Tristate Heart and Vascular Center Babcock University Teaching Hospital Ilishan-Remo Nigeria Intensive Care Unit Department of Surgery Ben Carson (Snr) School of Medicine Babcock University/Babcock University Teaching Hospital Ilishan-Remo Nigeria

Background: metabolic acidosis (mA) is a common finding on the surgical ward, more so in the intensive care unit. Diseases affecting the maj.r organ systems of the body and higher grades of surgery are common risk fac... 详细信息

Background: Metabolic acidosis (MA) is a common finding on the surgical ward, more so in the intensive care unit. Diseases affecting the major organ systems of the body and higher grades of surgery are common risk factors for MA. It is associated with poor treatment outcome. Aim: To determine the risk factors and clinical correlates of metabolic acidosis and assess its relationship with treatment outcome. Methodology: A retrospective study at the “Tristate Heart and vascular Center” in Ilishan-Remo South west Nigeria, on patients that had cardiac and vascular surgeries from January 2015 to December 2019. Three hundred and forty two participants took part in the study. The demographic, clinical and laboratory findings were entered. Statistical analysis was with Student’s t-test and Chi square. Results: Two hundred and six males and 136 females were studied. The incidences of metabolic acidosis prior to induction, on post-operative day one (PODmily:

关键词： metabolic Acidosis Perioperative Anesthetic Induction Post-Operative Day Open Heart Vascular Comorbidities Kidney Function

Impact of Piers on Tidal marshes： Accumulation of Wood Preservative metals in Water and Soils

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j.urnal of Environmental Science and Engineering 2011年第3期5卷 260-270页

作者： B. Vasilas j. Bowman A. Rogerson A. Chimside W. Ritter Department of Plant and Soil Sciences University of Delaware Newark Delaware 19716 USA Department of Entomology and Wildlife Ecology University of Delaware Newark Delaware 19716 USA Delaware Department of Natural Resources and Environmental Control Dover Delaware 19904 USA Department of Bioresources Engineering University of Delaware Newark Delaware 19716 USA

Wood treated with chromated copper arsenate （CCA） is a common material for pier pilings. Research on CCA impacts in estuarine systems indicates that the magnitude of the biological effect is variable and dependent on sediment and water characteristics. To assist environmental agencies in assessing pier impacts a proj.ct was conducted in the U.S.A. to investigate the spatial distribution and magnitude of As, Cr, and Cu accumulation in waters and soils near old and new piers. For new piers, soluble metal levels were highest within 2.9 m of the piers. Total As and Cu levels approached background levels at distances of 2.9 m and 1.4 m, respectively. For old piers, total As and Cu approached background levels at a distance of 9.0 m. Total Cr never exceeded background levels. Threshold effects concentrations were exceeded by sedimented As and Cu within 3.6 m of old piers and 2.1 m of new piers. Apparent effects thresholds were never reached. The only water chemistry variable impacted by piers was As with new piers. It was concluded that leachates accumulate only close to piers and at levels below critical biological thresholds, and would be expected to have negligible ecological effects in reasonably flushed areas.

关键词： Tidal marshes piers arsenic chromium copper.

1型家族性偏瘫性偏头痛患者小脑的~1H-mRS改变

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世界核心医学期刊文摘（神经病学分册） 2005年第7期1卷 42-43页

作者： Dichgans m. Herzog j. Freilinger T. 雷翀 marchioninistrasse 15 81377 Muenchen Germany Dr.

Background: About 20%of patients with familial hemiplegic migraine (FHm) deve lop progressive cerebellar signs. Genetic studies have established an associatio n with mutations in the CACNA1A gene. However, the mechanisms underlying cerebel lar involvement are largely unknown. Obj.ctive: To use proton mR spectroscopy (1 H-mRS) to investigate metabolic alterations in the cerebellum as well as cortic al regions known to be involved in the propagation of migraine aura. methods:Fif teen CACNA1A mutation carriers from three FHm families and 17 healthy control su bj.cts were studied. Eleven patients had clinical signs of cerebellar involvemen t. LCmodel fits were used to estimate absolute concentrations of N-acetylaspart ate (NAA), myo-inositol (ml), glutamate (Glu), choline containing compounds, to tal creatine, and lactate in the superior cerebellar vermis (SCV), parietal cort ex, and occipital *** control for atrophy effects, automated image segment ation was performed using SPm99. The brain parenchyma fraction(BPF) was determin ed for all three regions. Results: Compared with controls, the brain parenchyma fraction (BPF), NAA,and Glu were significantly reduced and mI was significantly elevated in the SCV of patients with FHm. In contrast, no metabolite alterations were found in supratentorial regions. BPF and NAA in the SCV significantly corr elated with cerebellar scores, in particular, gait ataxia. Conclusions: The find ings suggest that there is a regionally distinct neuronal impairment in the superio r cerebellar vermis that exceeds macroscopic tissue loss. Correlations with clin ical scores emphasize the functional relevance of localized atrophy (brain paren chyma fraction) and N-acetyl aspartate levels. These measures may be useful to monitor disease progression. The observed reductionin glutamate may in part refl ect impaired glutamatergic neurotransmission.

关键词：小脑体 migraine 小脑蚓部 cerebellar 步态共济失调大脑皮质谷氨酸能神经元 glutamate neuronal cortex

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肝脏T1加权mRI出现节段性高信号的意义

世界核心医学期刊文摘（胃肠病学分册） 2005年第6期1卷 11-12页

作者： Hashimoto m. Akabane Y. Heianna j. 徐瑞 Department of Radiology Akita University School of Medicine 1-1-1 Hondo Akita City Akita 010-0041 Japan

Background: We investigated the diagnostic importance of segmental high-intensity (SHI) areas not corresponding to mass lesions on T1-weighted magnetic resonance (mR) images. methods: We conducted a retrospective investigation of hepatic mR images obtained from 634 patients during a 4-year period at our institution. Images were compared with findings reported in the patients’medical records. There were 16 patients (2.5%) with SHI areas not corresponding to a mass lesion. We compared mR images with plain computed tomographic (CT) scans (n = 16), angiograms (n = 12), and histologic findings (n = 10). Results: The segments with intrahepatic bile duct dilatation showed hyperintensity on T1-weighted images. In six of 16 patients, the biliary duct was more dilated in the area of hyperintensity than in areas without hyperintensity. The SHI areas appeared as areas of low attenuation (n = 13), high attenuation (n = 1), or isoattenuation (n = 2) on plain CT scans. Histologically, these areas showed ductular proliferation and deposition of bile pigment within the hepatocytes. Conclusion: Segmental areas of increased signal intensity on T1-weighted images were probably due to intrahepatic cholestasis.

关键词： T1加权mRI 胆管增生肝细胞胆管扩张性信号低密度区组织学检查回顾研究肝内胆汁淤积血管造影

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Real-time ultrasound-guided versus landmark-guided subclavian vein catheterization in the intensive care unit: a prospective randomized study

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Emergency and Critical Care medicine 2023年第2期3卷 51-56页

作者： Suj.t j.Kshirsagar Sanyogita V.Naik Anandkumar H.Pande Pradnya m.Bhalerao Chandraprabhu Birnale Shivprasad Thorve Department of Anaesthesiology and Critical Care B.J.Govt.Medical College and Sassoon General HospitalsPuneIndia

Background:The subclavian vein(SCV)is an alternative to the internal j.gular vein when it is difficult to locate,such as in patients with hypovolemia or ***(USG)guidance for SVC cannulation has evolved,resulting in fewer complications and higher first-pass success *** study aimed to compare the effectiveness and safety of SCV cannulation with USG-and landmark-guided ***:In this prospective randomized interventional controlled study,80 patients admitted to the intensive care unit between j.ly 2022 and October 2022 were randomly assigned to the landmark method group(Lm group)and USG *** the Lm group,SCV cannulation was performed using the traditional landmark technique,whereas in the USG group,it was performed using USG *** primary obj.ctive of this study was to evaluate the ease of subclavian central venous cannulation in critically ill patients using the 2 *** secondary obj.ctives were to compare the success rate of cannulation between these 2 techniques,evaluate the number of attempts,assess cannulation failure,and assess mechanical ***:The first-pass success rates were 70%and 92.5%in the Lm and USG groups,respectively(Pmbers of attempts in the Lm and USG groups were 1.275(±0.520)and 1.075(±0.266),respectively(P=0.034).The average procedure durations were 7.45(±1.10)and 8(±0.933)minutes in the Lm and USG groups(P=0.018),*** rates of complications in both groups were not statistically ***:The USG guidance for SCV cannulation has an advantage over landmark-guided methods in a critical care *** SCV is a good alternative to internal j.gular vein *** average time to cannulation was longer in the USG group than in the Lm group,which can decrease with the frequent use of USG and increasing operator *** trials:This study was registered in the Clinical Trials Registry-India(CTRI Trial ***/2022/07/0

关键词： Central venous cannulation Landmark method Subclavian vein Ultrasonography