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世界核心医学期刊文摘（心脏病学分册） 2005年第6期1卷 56-57页

作者： mollet n.r. Cademartiri F. Krestin G.P. 郝广华

We sought to compare the diagnostic value of multi-slice computed tomography(MSCT)coron.r. angiography(CA)to detect significant stenoses(< 50%lumen diameter reduction)-with that of invasive CA. The latest 16-row MSCT ... 详细信息

We sought to compare the diagnostic value of multi-slice computed tomography(MSCT)coron.r. angiography(CA)to detect significant stenoses(n diameter reduction)-with that of invasive CA. The latest 16-row MSCT scann.r.has a faster rotation time(375 ms)and permits scanning with a higher X-ray tube current(500 to 600 mA)during MSCT CA when compared with previous scann.r.. We studied 51 patients(37 men, mean age 58.9±10.0 years)with stable angina or atypical chest pain. Patients with pre-scan heart rates n.r.ceived oral beta-blockade. The heart was scanned after in.r.venous injection of 100 ml con.r.st(iodine content, 400 mg/ml). Mean scan time was 18.9±1.0 s. The MSCT scans were analyzed by two observers unaware of the results of invasive angiography, and all available coron.r. branchesre included. Invasive CA demonstrated n.r.al arteries in 16%(8 of 51), non-significant disease in 21%(11 of 51), single-vessel disease in 37%(19 of 51), and multivessel disease in 26%(13 of 51)of patients. There were 64 significant lesions. Sensitivity, specificity, and positive and negative predictive values for detection of significant lesions on a segment-based analysis were 95%(61 of 64, 95%confidence interval [CI] 86 to 99), 98%(537 of 546, 95%CI 96 to 99), 87%(61 of 70, 95%CI 76 to 98), and 99%(537 of 540, 95%CI 98 to 99), respectively. All patients with angiographically n.r.al coron.r. arteries or significant lesions were correctly identified. Three of 11 patients with ns were incorrectly classified as having single-vessel disease. The 16-row MSCT CA reliably detects significant coron.r. stenoses in patients with atypical chest pain or stable angina pectoris.

关键词：计算机体层摄影造影术心脏扫描非典型胸痛严重病变单支血管病变稳定型心绞痛管电流管腔直径阴性预测值

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高速冠状动脉CT能可靠检查有症状的患者

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世界核心医学期刊文摘（心脏病学分册） 2007年第12期3卷 56-57页

作者： Weustink A.C. Meijboom W.B. mollet n.r. P.J. de Feyter 黄欣 Department of Cardiology Thoraxcenter Rotterdam Netherlands.Dr

目的:本研究目的在于前瞻性评估在广泛临床患者中,具有高时间分辨率(83ms)的高速双源计算机体层扫描(DSCT)用于识别显著冠状动脉病变(管腔直径减少≥50%)的诊断价值。背景:使用先前的时间分辨率有限的CT时,心脏的运动伪影可降低冠状动... 详细信息

目的:本研究目的在于前瞻性评估在广泛临床患者中,具有高时间分辨率(83ms)的高速双源计算机体层扫描(DSCT)用于识别显著冠状动脉病变(管腔直径减少≥50%)的诊断价值。背景:使用先前的时间分辨率有限的CT时,心脏的运动伪影可降低冠状动脉成像的质量。

关键词：患者时间分辨率冠状动脉 CT 冠状动脉造影冠脉造影心血管造影心绞痛冠心病

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高分辨率螺旋CT冠状动脉造影对拟行诊断性常规冠状动脉造影患者的应用价值

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世界核心医学期刊文摘(心脏病学分册) 2006年第3期 43-44页

作者： mollet n.r. Cademartiri F. Van Mieghem C.A.G. P.J. De Feyter 马超 Erasmus Medical Center Thoraxcenter Dr Molewaterplein 40 3015GD Rotterdam Netherlands Dr.

Background-The diagnostic performance of the latest 64-slice CT scann.r. with in.r.ased temporal(165 ms) and spatial(0.4 mm3) resolution, to detect significant stenoses in the clinically relevant coron.r. tree is unknown. Methods and results -We studied 52 patients(34 men; mean age, 59.6± 12.1 years)with atypical chest pain, stable or unstable angina pectoris, or non-ST-segment elevation myocardial infarction scheduled for diagnostic conventional coron.r. angiography. All patients had stable sinus rhythm. Patients with initial heart rates ≥ 70 bpm received β -blockers. Mean scan time was 13.3± 0.9 seconds. The CT scans were analyzed by 2 observers unaware of the results of invasive coron.r. angiography, which was used as the standard of reference. All available coron.r. segments, regardless of size, were included in the evaluation. Lesions with ≥ 50 luminal n.r.owing were considered significant stenoses. Invasive coron.r. angiography demonstrated the absence of significant disease in 25% (13 of 52), single-vessel disease in 31% (16 of 52), and multivessel disease in 45% (23 of 52) of patients. One unsuccessful CT scan was classified as inconclusive. ninety-four significant stenoses were present in the remaining 51 patients. Sensitivity, specificity, and positive and negative predictive values of CT for detecting significant stenoses on a segment-by-segment analysis were 99% (93 of 94; 95% CI, 94 to 99), 95% (601 of 631; 95% CI, 93 to 96), 76% (93 of 123; 95% CI, 67 to 89), and 99% (601 of 602; 95% CI, 99 to 100), respectively. Conclusions -noninvasive 64-slice CT coron.r. angiography accurately detects coron.r. stenoses in patients in sinus rhythm and presenting with atypical chest pain, stable or unstable angina, or non-ST-segment elevation myocardial infarction.

关键词：冠状动脉造影冠脉造影心血管造影患者诊断性 CT 常规

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术前CT冠状动脉造影以检出行心脏瓣膜手术患者的明显冠状动脉疾病

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世界核心医学期刊文摘（心脏病学分册） 2007年第4期3卷 40-41页

作者： Meijboom W.B. mollet n.r. Van Mieghem C.A.G. P.J.de Feyter 郭俊 Department of Cardiology ThoraxcenterErasmus Medical CenterRotterdamNetherlands Dr.

目的:探讨64层CT冠状动脉造影(CTCA)排除或检出行瓣膜手术患者中明显冠状动脉狭窄的诊断价值。背景:大多数拟行瓣膜手术的患者被推荐进行有创性常规冠状动脉造影检查(CCA)。方法:6个月内。

关键词：心脏瓣膜手术 CT 冠状动脉造影患者群体造影剂过敏心律不齐排除标准劳拉西泮平均心率知情

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Astrophysical S-factor and reaction.r.te for 15n(p,γ)16O within the modified potential cluster model

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Chinese Physics C 2024年第4期48卷 130-145页

作者： S.B.Dubovichenko A.S.Tkachenko r.Ya.Kezerashvili n.A.Burkova B.M.Yeleusheva Fesenkov Astrophysical Institute 050020 AlmatyKazakhstan new York City College of Technology City University of New YorkBrooklyn11201 New YorkUSA Graduate School and University Center City University of New York10016 New YorkUSA al-Farabi Kazakh national University 050040 AlmatyKazakhstan

We study radiative p^(15)n capture on the ground state of ^(16)O at stellar en.r.ies within the framework of a modified potential cluster model(MPCM)with forbidden states,including low-lying *** investigation of the ^(15)n(p,γ0)^(16)O reaction includes the consideration of ^(3)S_(1) resonances due to E1 transitions and the con.r.bution of the ^(3)P_(1) scattering wave in the p+^(15)n channel due to the ^(3)P_(1)→^(3)P_(0)M1 *** calculated the astrophysical low-en.r.y S-factor,and the extrapolated S(0)turned out to be within 34.7−40.4 keV·*** important role of the asymptotic constant(AC)for the ^(15)n(p,γ0)16O process with interfering ^(3)S_(1)(312)and ^(3)S_(1)(962)resonances is elucidated.A comparison of our calculation for the S-factor with existing experimental and theoretical data is addressed,and a reasonable agreement is *** reaction.r.te is calculated and compared with the existing *** has negligible dependence on the variation of AC but shows a strong impact of the interference of ^(3)S_(1)(312)and ^(3)S_(1)(962)resonances in.r.ference to the CnO Gamow windows,especially at low *** estimate the con.r.bution of cascade transitions to the reaction.r.te based on the exclusive experimental data from ***.C.85,065810(2012).The reaction.r.te enhancement due to the cascade transitions is observed from T_(9)>0.3 and reaches the maximum factor~1.3 at T_(9)=*** present the Gamow en.r.y window and a comparison of rates for radiative proton capture reactions ^(12)n(p,γ)^(13)O,^(13)n(p,γ)^(14)O,^(14)n(p,γ)^(15)O,and ^(15)n(p,γ)^(16)O obtained in the framework of the MPCM and provide the temperature windows,prevalence,and significance of each process.

关键词： low and astrophysical en.r.ies p^(15)n system thermonuclear reaction.r.te potential cluster model CnO-cycle

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Structural changes in the obese brain

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neural regen.r.tion.r.search 2024年第12期19卷 2561-2562页

作者： Anna r.r.Da Conceicao Marcelo n.n.Vieira Fernanda G.De Felice D’Or Institute for research and Education Rio de JaneiroBrazil Institute of Medical Biochemistry Leopoldo De Meis Federal University of Rio de JaneiroRio de JaneiroBrazil Cen.r. for neuroscience Studies Department of Biomedical and Molecular Sciences&Department of PsychiatryQueen’s UniversityKingstonONCanada

Obesity represents a major global health concern,with widespread growing prevalence and severe consequences for the quality of life and life expectancy of affected individuals and for the economic burden of healthcare systems(Prospective Studies Collaboration,2009).Obesity is a well-established risk factor for a variety of conditions including metabolic,vascula r,and heart diseases,and seve ral types of cancer(Prospective Studies Collaboration,2009).

关键词： diseases consequences prevalence

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Aberrant adult neurogenesis in in.r.ctable epilepsy:can GABAergic progenitor transplantation n.r.alize this process?

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neural regen.r.tion.r.search 2024年第7期19卷 1419-1420页

作者： Muhammad n.Arshad Janice r.naegele Department of Biology Wesleyan UniversityMiddletownCTUSA Department of neuroscience Tufts University School of MedicineBostonMAUSA

Temporal lobe epilepsy(TLE) is a common type of focal epilepsy characterized by seizure foci within the temporal *** surgical resection of the foci is an established and effective approach for con.r.lling seizures,both temporal lobes cannot be removed,due to their prominent roles in learning and ***,seizures induce changes to the temporal lobes that con.r.bute to hyperexcitability,including mossy fiber sprouting,astrogliosis.

关键词： epilepsy progenitor seizures

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Polyelectrolyte Complexes between Hyperbranched and Linear Polysaccharides: Fucoidan/Chitosan

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Chinese Journal of Polymer Science 2024年第4期42卷 468-479页

作者： Ekaterina r.Gasilova Daria n.Poshina Aleksan.r. O.Sitnikova natalia n.Saprykina Yury A.Skorik Institute of Macromolecular Compounds of the russian Academy of Sciences Bolshoi VO 31St.Petersburg199004Russian Federation

Polyelectrolyte complexes(PECs)of hyperbranched(HB)and linear polysaccharides are promising as more effective encapsulation agents compared to PECs formed by linear *** investigated the PECs between the HB anionic polysaccharide fucoidan(FUC)and the cationic linear polysaccharide chitosan(CS).The FUC had a molecular weight(MW)of 30×*** PECs were prepared in three solvents(water,0.01 and 0.1 mol/L acetic acid)with CS of MW of 15,110 and 170 kDa,and deacetylation degrees(DDA)of 70%and 97%.The structures of the PECs and the initial FUC were investigated by multi-angle static and dynamic light *** the FUC contained 18 wt%of—OSO3 groups and 5 wt%of uronic acid units,it was a“strong-weak”copolyanion,so the HB macromolecules of the FUC formed nanogel particles in 0.1 mol/L AcOH and open branched structures in water,as confirmed by the Kratky *** mixing the solutions of original components,the PEC structures underwent an equilibration period,the duration of which in.r.ased with the MW of *** the charge stoichiometry was approached,the PECs shrank;the fractal dimension approached unity,indicating the side-by-side packing of adjacent FUC branches with the help of *** aggregation in the vicinity of the charge compensation was hardly observed,as it occurred in a very n.r.ow *** PEC content at theζ-potential inversion depended on solvents’pH and the DDA of *** the extreme case of core-shell PECs in 0.1 mol/L AcOH,obtained by mixing FUC nanogels with the solutions of high MW CS of 97%DDA,the protruding tails of CS formed a positively charged shell in the whole range of FUC content(10 wt%nning electron microscopy and atomic force microscopy images of dried samples were discussed in.r.lation to the light scattering results.

关键词： Polyelectrolyte complexes Chitosan Hyperbranched fucoidan Light scattering

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Langmuir-Schaefer Film Investigation and Density Functional Theory Band Gap Calculations of Calix[n]arene-Para-Aminobenzoic Acid for Drug nanosensor Application

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Journal of Wuhan University of Technology(Materials Science) 2024年第5期39卷 1311-1318页

作者： WOnG Yeong Yi F L Supian A radzwan M Musa n F n Abd Karim Department of Physics Sultan Idris Education UniversityTanjong Malim 35900Malaysia Department of Chemistry Sultan Idris Education UniversityTanjong Malim 35900Malaysia

Calix[n]arenes was utilized to detect PABA,the primary sunscreen *** study investigates the interaction of calix[4]arene(C4),calix[6]arene(C6),and PABA using the Langmuir method and first-principle density functional theory(DFT).Using the Langmuir-Schaefer(LS)technique,an ultrathin film composed of calix[n]arenes and their complexes with PABA was deposited on various *** on the Langmuir study,the PABA molecule was bonded to the lower rims of both C4 and C6 with the host-guest ratio of 1:*** of the LS films formed were then characterized by ultravioletvisible spectroscopy(UV-Vis),Fourier-transform in.r.red spectroscopy(FTIr)and carbon,hydrogen,nitrogen,sulfur elemental analyzer(CHnS).The band gap reduction obtained in the DFT study denotes the charge transfer interaction with promising reactivity between the calix[n]arenes and *** sensing of PABA by C4 and C6 is successful based on the formation of bonding between them due to the hosts’effective trapping *** outcomes of this study could be applied to drug delivery systems for future pharmaceutical and medical applications.

关键词： calix[n]arenes band gap density functional theory Langmuir-Schaefer PABA sensor

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A concise review on surface and structural modification of porous zeolite scaffold for enhanced hydrogen storage

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Chinese Journal of Chemical Engineering 2024年第6期70卷 33-53页

作者： B.A.Abdulkadir r.S.r.Mohd Zaki A.T.Abd Wahab S.n.Miskan Anh-Tam nguyen Dai-Viet n.Vo H.D.Setiabudi Cen.r. for research in Advanced Fluid&Processes Universiti Malaysia Pahang Al-Sultan AbdullahLebuh Persiaran Tun Khalil YaakobGambangPahang 26300Malaysia Faculty of Chemical&Process Engineering Technology Universiti Malaysia Pahang Al-Sultan AbdullahLebuh Persiaran Tun Khalil YaakobGambangPahang 26300Malaysia Center of Excellence for Green En.r.y and Environmental nanomaterials(CE@GrEEn) Nguyen Tat Thanh University300A Nguyen Tat ThanhDistrict 4Ho Chi Minh City 755414Viet Nam

Investigating zeolites as hydrogen storage scaffolds is imperative due to their porous nature and favorable physicochemical ***,the storage capacity of the unmodified zeolites has been.r.ther unsatisfactory(0.224%-1.082%(mass))compared to its modified ***,the contemporary focus on enhancing hydrogen storage capacities has led to significant attention towards the utilization of modified zeolites,with studies exploring surface modifications through physical and chemical treatments,as well as the integration of various active *** enhanced hydrogen storage properties of zeolites are attributed to the presence of aluminosilicates from alkaline and alkaline-earth metals,resulting in in.r.ased storage capacity through interactions with the charge density of these ***,there is a great demand to critically review their role such as well-defined topology,pore structure,good thermal stability,and tunable hydrophilicity in enhanced hydrogen *** article aimed to critically review the recent research findings based on modified zeolite performance for enhanced hydrogen *** of the factors affecting the hydrogen storage capacities of zeolites that can affect the rate of reaction and the stability of the adsorbent,like pressure,structure,and morphology were studied,and ***,future perspectives,recommendations,and directions for modified zeolites were discussed.

关键词： Zeolites Hydrogen storage Surface modification Adsorption Active metal

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