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Solid-liquid Extraction Spectrophotometric Determination of Copper with 2,9-dimethyl-1,10-phenanthroline

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Rare metals 2001年第4期20卷 213-216页

作者： Peng, B Gao, JZ Hu, GL Fan, HY Kang, JW Deng, hl NW Normal Univ Dept Chem Lanzhou 730070 Peoples R China

Solid liquid extraction of copper ion (I) with 2, 9-dimethyl-1, 10-phenanthroline (neo-cuproine, DmP) into molten naphthalene followed by chloroform spectrophotometric determination has been studied experimentally. The ternary complex Cu(I)-DmP-ClO4 was extracted quantitatively into molten naphthalene in the range of pH from 5 to 6 at 85 C-. Absorbance was spectrophotometrically determined at 459 nm against the reagent blank after the solid naphthalene layer was anhydrously dissolved in chloroform. Beer's law is obeyed over a concentration range of 0.5-70 mug/mL. The molar absorptivity and Sandell's sensitivity are 1.0x10(4) L/(mol(.)cm) and 0.0099 mug(.)cm(2) respectively. In addition, the various conditions on determination and the interference of coexisted ions were discussed, and the method was applied to the determination of copper ion both in tea samples and cadmium sulfate reagents. The results are in good agreement with those obtained by ICP AES method.

关键词： solid-liquid extraction spectrophotometric determination molten naphthalene copper DmP

出生时气管内插管预防强壮的足月分娩粪染婴儿的发病率和死亡率

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生殖与避孕 2006年第3期26卷 175-177页

作者： Halliday hl 李勤单位不详

1背景三项非随机研究表明出生时仔细吸净气道可减少胎粪吸入综合征的发生并减轻其严重性（Gregory 1974；Ting 1975；Carson 1976）。这些作者建议当发生稠厚胎粪污染时产科医生应在胎头着冠时用抽吸导管或抽吸球吸净口腔。Gregory等发... 详细信息

1背景三项非随机研究表明出生时仔细吸净气道可减少胎粪吸入综合征的发生并减轻其严重性（Gregory 1974；Ting 1975；Carson 1976）。这些作者建议当发生稠厚胎粪污染时产科医生应在胎头着冠时用抽吸导管或抽吸球吸净口腔。Gregory等发现56％粪染婴儿的气管内有胎粪，10％的婴儿尽管口腔或咽部没有胎粪但在脐带下有胎粪。这些作者建议将胎粪污染婴儿出生时行气管内抽吸作为预防或改善严重胎粪吸入综合征的手段。

关键词：气管内插管出生时婴儿足月分娩胎粪吸入综合征预防死亡率发病率强壮胎粪污染

macular microvascular and structural changes on optical coherence tomography angiography in atypical optic neuritis

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World Journal of methodology 2025年第1期15卷 88-94页

作者： Chinmay mahatme madhurima Kaushik Veerappan Rathinasabapathy Saravanan Karthik Kumar Virna m Shah Department of General Ophthalmology Aravind Eye HospitalCoimbatore 641014Tamil NāduIndia Department of Neuro-ophthalmology Aravind Eye HospitalCoimbatore 641014Tamil NāduIndia Department of Vitreoretina Aravind Eye HospitalCoimbatore 641014Tamil NāduIndia

BACKGROUND Atypical optic neuritis,consisting of neuromyelitis optica spectrum disorders(NmOSD)or myelin oligodendrocyte glycoprotein antibody disease(mOGAD),has a very similar presentation but different prognostic implications and longterm management *** and metabolic factors are being thought to play a role in such autoimmune neuro-inflammatory disorders,apart from the obvious immune mediated *** the advent of optical coherence tomography angiography(OCTA),it is easy to pick up on these subclinical macular microvascular and structural *** To study the macular microvascular and structural changes on OCTA in atypical optic *** This observational cross-sectional study involved 8 NmOSD and 17 mOGAD patients,diagnosed serologically,as well as 10 healthy *** vascular density(mVD)and ganglion cell+inner plexiform layer thickness(GCIPL)were studied using *** There was a significant reduction in mVD in NmOSD and mOGAD affected as well as unaffected eyes when compared with healthy *** and mOGAD affected eyes had significant GCIPL thinning compared with healthy *** unaffected eyes did not show significant GCIPL thinning compared to healthy controls in contrast to mOGAD unaffected *** comparing NmOSD with mOGAD,there was no significant difference in terms of mVD or GCIPL in the affected or unaffected *** Although significant microvascular and structural changes are present on OCTA between atypical optic neuritis and normal patients,they could not help in differentiating between NmOSD and mOGAD cases.

关键词： Optical coherence tomography angiography Atypical optic neuritis macular microvascular changes Neuromyelitis optica spectrum disorders myelin oligodendrocyte glycoprotein antibody disorder

Getting physical with medical education:Exercise based virtual anatomy review classes for medical students

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World Journal of methodology 2025年第1期15卷 20-25页

作者： Nadeesha R Samarasinghe Taniya S Nagpal michele L Barbeau Charys m martin Division of General Surgery Faculty of MedicineUniversity of British ColumbiaVancouver V6T 1Z3BCCanada Faculty of Kinesiology Sport and RecreationUniversity of AlbertaEdmonton T6G 2R3ABCanada Anatomy and Cell Biology University of Western OntarioLondon N6A 3K7ONCanada Department of Anatomy and Cell Biology Schulich School of Medicine and DentistryThe University of Western OntarioLondon N6A 3K7ONCanada

The benefits of regular physical activity are well ***,few studies have examined the effectiveness of integrating physical activity(PA)into curricula within a post-secondary *** investigate the incorporation of PA into medical curriculum,we developed a series of optional exercise-based review sessions designed to reinforce musculoskeletal(mSK)anatomy course *** synchronous sessions were co-taught by a group fitness instructor and an anatomy *** fitness instructor would lead students through both strength and yoga style exercises,while the anatomy instructor asked questions about relevant anatomical structures related to course material previously *** the sessions,participants were asked to evaluate the classes on their self-reported exam preparedness in improving mSK anatomy knowledge,PA levels,and mental *** participants completed surveys;a majority agreed that the classes increased understanding of mSK concepts(90.0%)and activity levels(97.7%).many(70.0%)felt that the classes helped reduce *** majority of respondents(90.0%)agreed that the classes contributed to increased feelings of social ***,medical students saw benefit in PA based interventions to supplement mSK course *** with increasing activity levels and promoting health behaviours,integrating PA into medical curriculum may improve comprehension of learning material,alleviate stress and foster social connectivity among medical students.

关键词： medical education musculoskeletal Anatomy Exercise Online learning

ANALYTICAL SOLUTION OF NONLINEAR BAROTROPIC VORTICITY EQUATION

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Journal of Hydrodynamics 2008年第4期20卷 530-535页

作者： WANG Yue-peng SHI Wei-hl College of mathematics and Physics Nanjing University of Information Science and Technology Nangjing210044 China Jiangsu Key Laboratory of meteorological Disaster Nangjing University of Information Science and Technology Nangjing 210044 China Department of mathematics Shanghai University Shanghai 200072 China

The C^k （k ≥ 3） stability of nonlinear barotropic vorticity equation was proved. The necessary and sufficient conditions for the initial value problem to be well-posed were presented. Under the conditions of well-p... 详细信息

关键词： nonlinear barotropic vorticity equation stability well-posedness analytical solution

Endoscopic mucosal resection of colorectal polyps in typical UK hospitals

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World Journal of Gastroenterology 2010年第42期16卷 5324-5328页

作者： Teegan R Lim Venkat mahesh Salil Singh Benjamin hl Tan mohamed Elsadig Nerukav Radhakrishnan Phil Conlong Chris Babbs Regi George Department of Gastroenterology and medicine Rochdale InfirmaryRochdaleOL12 0NBUnited Kingdom Department of Gastroenterology and medicine Royal Oldham HospitalOldhamOL1 2JHUnited Kingdom Department of Gastroenterology and medicine Salford Royal HospitalStott LaneSalfordM6 8HDUnited Kingdom Division of Gastrointestinal Surgery Nottingham Digestive Diseases Centre NIHR Biomedical Research UnitNottingham University HospitalsQueen's Medical CentreNottinghamNG7 2 UHUnited Kingdom

AIm:To evaluate the outcomes of endoscopic mucosal resection(EmR) for colorectal polyps,with particular regard to procedural complications and recurrence rate,in typical United Kingdom(UK) hospitals that perform an average of about 25 colonic EmRs per ***:A total of 239 colorectal polyps(≥ 10 mm) resected from 199 patients referred to Rochdale Infirmary,Salford Royal Hospital and Royal Oldham Hospital for EmR between January 2003 and January 2009 were ***:The mean size of polyps resected was 19.6 ± 12.4 mm(range 10-80 mm).The overall major complication rate was 2.1%.Complications were less frequent with non-adenomas compared with the other groups(Pearson's χ 2 test,P more likely to result in complications(unpaired t-test,P = 0.021).Recurrence was associated with histology,with carcinoma-in-situ more likely to recur compared with low-grade dysplasia [hazard ratio(HR) 186.7,95% confidence interval(95% CI):8.81-3953.02,P = 0.001].Distal lesions were also more likely to recur compared with right-sided and transverse colon lesions(HR 5.93,95% CI:1.35-26.18,P = 0.019).CONCLUSION:EmR for colorectal polyps can be performed safely and effectively in typical UK *** follow-up is required for histologically advanced lesions due to increased recurrence risk.

关键词： Endoscopic mucosal resection Polyps Endoscopic Resection

ACUPUNCTURE CHANNELS—mYTH OR REALITY

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中华医学杂志(英文版) 1982年第12期95卷 912-914页

作者： GS Sekhon mS Sekhon hl Khatri School of Surgery and Allied Sciences Department of Surgery Rohtak Medical CollegeRohtakIndia

Spurred by recent advances in the ancientscience of acupuncture in China,world interestin the subject has *** the benefitsof acupuncture are evident,its mode of actionand the existence of channels and collaterals aremajor controversial *** on personalexperience and that of some of their colleaguesand patients,the authors believe that channelsand collaterals *** channels not onlyplay a role in the treatment of deep seated dis-eases and analgesia induction and probably alsomoderate normal healthy *** ex-istence of channels and their collaterals has notbeen proved anatomically.

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人类胎儿尿流率的超声扫描评价:膀胱容积精确度的评估

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实用妇产科杂志 1995年第2期 120-121页

作者： Hedriana hl

作者进行这项研究的目的是检查通常采用的椭圆形容量公式对膀胱容积预测的可信性,并发展一种较简单又相当准确的方法。927个测量和推算出来的数据是从8例死产婴和3例出生24小时内死亡的新生儿所获得。灌入已知的增量盐溶液,并利用超声... 详细信息

作者进行这项研究的目的是检查通常采用的椭圆形容量公式对膀胱容积预测的可信性,并发展一种较简单又相当准确的方法。927个测量和推算出来的数据是从8例死产婴和3例出生24小时内死亡的新生儿所获得。灌入已知的增量盐溶液,并利用超声扫描测定膀胱的

关键词：公彩

The effects of QO-58 on Na+ currents in DRG neurons and pain behavior of adult rats

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The effects of QO-58 on Na+ currents in DRG neurons and pain...