Eu(bpy)2(NO3)3(H2O)2/Nafion修饰于金电极上的电化学发光性质研究

本文合成了铕-联吡啶的二元配合物Eu(bpy)2(NO3)3(H2O)2,用元素分析、红外及紫外光谱对配合物进行了表征.采用循环伏安法,研究了用Nafion将Eu(bpy)2(NO3)3(H2O)2修饰于金电极上的电化学发光行为.讨论了介质、pH对该体系电化学发光性质的影响,推测了Eu(bpy)2(NO3)3(H2O)2电化学发光的机理.结果表明:在没有共反应试剂存在的条件下,Eu(bpy)2(NO3)3(H2O)2在pH 8.0的硼砂缓冲溶液中可以产生较强的电化学发光,其发光体可能为Eu*(bpy)2(NO3)3(H2O)2.     

Proceedings of the American Psychological Association, Incorporated, for the year 1984: Minutes of the annual meeting of the Council of Representatives August 23 and 26, 1984, Toronto, Ontario, Canada and February 1–3, 1985, Washington, D.C.

These minutes constitute the official record of actions of the Association taken during the year, by both the Board of Directors and the Council of Representatives. Included are (I) Minutes of Meetings in 1984-1985, (II) Elections, Awards, Membership, and Human Resources, (III) Ethics, (IV) Board of Directors, (V) Divisions and State Associations, (VI) Organization of the APA, (VII) Publications and Communications, (VIII) Convention Affairs, (IX) Educational Affairs, (X) Professional Affairs, (XI) Scientific Affairs, (XII) Social and Ethical Responsibility for Psychology, (XIII) Ethnic Minority Affairs, (XIV) International Affairs, (XV) Central Office, (XVI) Financial Affairs, and (XVII) Communications Concerning Outside Organizations. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Physiological functions and regulation of K+ and Cl- channels in single smooth muscle cells

Solution- and solid-state c.d. spectra, as well as surface energetics values, were collected for a series of peptides derived from human salivary proline-rich glycoprotein (PRG). The acronyms and sequences for these peptides are as follows: PRG9-2 = NH2-G(1)-P(2)-CONH2, PRG9-3 = NH2-G(1)-P(2)-P(3)-CONH2, PRG9-4 = NH2-G(1)-P(2)-P(3)-P(4)-CONH2, PRG9-5 = NH2-G(1)-P(2)-P(3)-P(4)-H(5)-CONH2, PRG9-6 = NH2-G(1)-P(2)-P(3)-P(4)-H(5)-P(6)-CONH2, PRG9-7 = NH2-G(1)-P(2)-P(3)-P(4)-H(5)-P(6)-G(7)-CONH2, PRG9-8 = NH2-G(1)-P(2)-P(3)-P(4)-H(5)-P(6)-G(7)-K(8)-CONH2, and PRG9-9 = NH2-G(1)-P(2)-P(3)-P(4)-H(5)-P(6)-G(7)-K(8)-P(9)-CONH2. The presence of stable poly-L-proline II-like 'mini' helices in the solution state was found to be dependent on peptide chain length, pH, salt, and organic solvent type. Other conformational features such as kinks and beta-/gamma-turns were also found in the larger peptides. Solid-state peptide conformations were not necessarily related to their solution-state counterparts. Poly-L-proline II-like 'mini' helices, kinks, and beta-/gamma-turns were similarly found in the various substrate-bound PRG9 peptides. Surface energetics parameters suggested specific orientations for PRG9 peptides and their constituent acids and homopolymers.     

硫酸铵-四丁基溴化铵-碘化钾体系浮选分离铂(Ⅳ)的研究

在0.1 g/mL硫酸铵、5.0×10-4mol/L四丁基溴化铵(TBAB)和3.0×10-3mol/L碘化钾存在下,铂(Ⅳ)形成的水不溶性的缔合物[PtI6][TBAB]2在水相表面浮选析出,而在此相同条件下,Zn(Ⅱ)、Cr(Ⅲ)、Mo(Ⅵ)、Fe(Ⅱ)、V(、Sn(Ⅳ)、Mn(Ⅱ)、Ni(Ⅱ)、Ga(Ⅲ)、Rh(Ⅲ)、Co(Ⅱ)、W(Ⅵ)、Al(Ⅲ)、Ce(Ⅲ)和Zr(Ⅳ)15种离子均不形成不溶性沉淀物。据此可达到铂(Ⅳ)与上述共存离子之间的定量分离。本法用于Ni-Pt/Al2O3催化剂中铂的分离和测定,平均回收率为97.1%,相对标准偏差(RSD)为2.2%(n=5)。     

Fabrication of Green Electroluminescent Devices

Ｄｉｓｐｌａｙｓｂａｓｅｄｏｎｏｒｇａｎｉｃｌｉｇｈｔｅｍｉｔｔｉｎｇｄｅｖｉｃｅｓ (ＯＬＥＤｓ)ｈａｖｅｂｅｃｏｍｅｐｏｔｅｎｔｉａｌｒｅ ｐｌａｃｅｍｅｎｔｓｏｆｌｉｑｕｉｄ ｃｒｙｓｔａｌｄｉｓｐｌａｙｓ (ＬＣＤｓ)ｄｕｅｔｏｔｈｅｉｒｗｉｄｅｖｉｅｗｉｎｇａｎｇｌｅ ,ｈｉｇｈｅｒｂｒｉｇｈｔ ｎｅｓｓ,ｅａｓｅｏｆｃｏｌｏｒｔｕｎａｂｉｌｉｔｙ ,ｆａｓｔｒｅｓｐｏｎｓｅｔｉｍｅａｎｄｌｏｗｄｒｉｖｉｎｇｖｏｌｔａｇｅ[1] .Ｔｈｅｇｒｅｅｎｏｒ ｇａｎｉｃＥＬｄｉｓｐｌａｙｕｓｉｎｇｔｒｉｓ(8 ｈ…     

Guidelines for Canadian university counselling services.

Guidelines for Canadian university counseling services are provided. Topics discussed include: (1) the role of counseling in universities, (2) the place of counseling in the university organization, (3) counseling services provided to students, (4) counseling service personnel, (6) referral procedures, (7) physical facilities, (8) training relationships, and (9) public relations. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A vocational interest scale for biologists.

A Biologist scale for the SVIB (Form M) was developed following procedures outlined by E. K. Strong, Jr. 4 groups were employed: (a) criterion (N = 251) systematically selected from Volume 2 of American Men of Science, (b) cross-validation (N = 89) selected at an American Institute of Biological Science convention, (c) 2 concurrent validation groups (Ns = 121, 306) selected from the Pennsylvania State University student body. Results indicated that the scale differentiated the interests of: (a) the biologists from Strong's men-in-general group (P1), (b) the biologists from the interests measured by 36 other SVIB scales, (c) the concurrent validation groups in the expected direction. Reliabilities of .88 (criterion) and .87 (cross-validation) were obtained. It was concluded that the scale has sufficient validity and reliability to be a useful counseling device. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

微量元素Y、Ag对Cu基非晶合金玻璃形成能力的影响

采用单辊旋淬法制备了Cu50Zr42Al8,Cu46 Zr47-xAl7Yx(x=2,5),Cu43Zr42AlsAg7和Cu43Zr42Al8Ag5 Y2非晶合金薄带,利用X射线衍射和差示扫描量热分析研究了合金样品的玻璃形成能力和热稳定性.结果表明,在Cu50Zr42Al8中添加适量的Ag、Y后使得非晶合金的短程有序结构发生改变.合金Cu46Zr47-xAl7Yx(x=2,5)的过冷液相区宽度ΔTx分别比Cu50 Zr42 Al8增加了19K、30K,约化玻璃转变温度Trg从0.565分别增加到0.579和0.566,参数γ从0.402分别增加到0.418和0.420,说明Y的添加提高了非晶合金的热稳定性和玻璃形成能力.合金Cu43Zr42 Al8Ag7和Cu43Zr42Al8Ag5Y2与Cu50Zr42Al8相比,约化玻璃转变温度Trg及参数γ均有了明显的提高,达到了0.619、0.416和0.609、0.411,表明Ag的添加、Ag和Y的同时添加均提高了Cu - Zr -Al系非晶合金的玻璃形成能力,但Ag的效果更加显著.     

La_(1.1)Fe_(11.4)Si_(1.55)Ge_(0.05)合金的磁热效应

使用电弧熔炼法制备了La1.1Fe11.4Si1.55Ge0.05合金。研究了用少量的Ge替代Si后,La1.1Fe11.4Si1.55Ge0.05合金的磁性和磁热效应。粉末X射线衍射结果表明:在1273K真空退火处理10d后,合金La1.1Fe11.4Si1.55Ge0.05主相为NaZn13型立方结构,存在微量的α-Fe相。热磁曲线M-T与Arrott曲线表明:在居里温度Tc=205K处发生由铁磁性(TTc)转变为顺磁性(TTc)的二级磁相变。在磁场变化0～1.5T下,根据等温磁化曲线通过Maxwell关系式计算得出最大磁熵变-ΔSmmax=9J.kg-.1K-1。Ge替代Si后该合金在其居里温度Tc处-ΔSm-T曲线半高宽增大,使合金的相对制冷能力RCP(S)有所提高。     

9,10-蒽-3,3′-双(1,3-戊二烯-2,4-二醇)桥联双核镍(Ⅱ)配合物的合成及磁性研究

以9,10-蒽-3,3′-双(1,3-戊二烯-2,4-二醇)和二苯甲酰甲烷为原料合成了新型固态三元配合物[Ni2(C24H20O4)(C15H11O2)2].H2O,并用元素分析、电导率、红外光谱、电子光谱和电喷雾质谱对其进行了表征,确定了配合物的组成,研究了配合物在氮气气氛中的热分解行为。其荧光光谱的最大发射波长为430nm,变温磁化率(2～300K)的测定结果表明桥联双核Ni2+配合物为铁磁性自旋交换作用,Curie常数C=2.04cm3.mol-.1K,Weiss常数θ=8.10K。     

Proceedings of the American Psychological Association, Incorporated, for the year 1991: Minutes of the annual meeting of the Council of Representatives August 14 and 17, 1991, San Francisco, and February 29 March 1, 1992, Washington, DC.

These minutes act as the official record of the actions of the American Psychological Association (APA) taken during the year by both the Board of Directors and the Council of Representatives. The report contains sections on (1) meeting minutes; (2) elections, awards, and membership; (3) ethics; (4) Board of Directors; (5) Divisions and State Associations; (6) APA organization; (7) publications and communications; (8) convention affairs; (9) educational affairs; (10) professional affairs; (11) scientific affairs; (12) public interest; (13) ethnic minority affairs; (14) international affairs; (15) Central Office; (16) financial affairs; and (17) communications concerning outside organizations. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

含取代茚基配体稀土金属有机化合物的合成、表征及催化性能

采用Schlenk技术,在干燥纯氩气保护下,用无水三氯化稀土LnCl3与2-苯基茚以1∶2的摩尔比在THF中反应,得到8种新配合物:(2-ph-Ind)2LnCl(A)[Ln=La(1),Pr(2),Nd(3),Sm(4),Gd(5),Dy(6),Yb(7),Y(8)]。再用(A)和LiN(TMS)2在THF中反应,得到两种新的二(2-苯基茚)稀土有机配合物:(2-ph-Ind)2LnN(TMS)2(B)[Ln=Y(1),Sm(2)]。所有配合物都经元素分析、红外和质谱鉴定。配合物(B)在甲基丙烯酸甲酯(MMA)的聚合反应中显示出一定的活性。     

Concept of process-reactive schizophrenia: A critique.

A review of current issues, including (1) the dichotomy vs. continuum view of the process-reactive concept, (2) the question of organic involvement in process schizophrenia, (3) the relationship of severity of illness to the concept, (4) the problem of duration of hospitalization, (5) comparability of criteria, (6) adequacy of control groups, (7) sociocultural diversity, and (8) uniformity of process-reactive differences. (2 p. ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Preparation and Structure of Mg2-xRExNi （RE = La, Ce, Pr, Nd, Y） Ternary Alloys

A series of Mg2-xNdxNi (x =0.05, 0.1, 0.2, 0.3) alloys and Mg1.95RE0.05Ni (RE= La, Ce, Pr, Nd, Y)ternary alloys were prepared by ball milling of mixted powder of Mg, Ni, RE and sintering under the protection of argon. XRD analysis shows that Mg2-xNdxNi (x = 0.05, 0.1 ) and Mg1.95RE0.05Ni consist of single phase with the same crystal structure as Mg2Ni. While three-phase alloys including Mg2Ni, NdNi and NdMgNi4 were formed in Mg1.8Nd0.2Ni and Mg1.7Nd0.3Ni alloys respectively. The lattice constants of Mg2Ni in those ternary alloys were calculated. The decomposition of Mg2Ni occurs in the milling process of Mg2Ni and Mg1.95RE0.05Ni alloys respectively. For the latter, another earlier reaction occurs in milling process, which means that atoms of RE are separated from crystal structure of Mg2Ni and form relevant oxides by combination with oxygen existed in argon atmosphere.     

Thermochemical Study on Coordination Complex of Neodymium Trichloroacetic Acid with 8-Hydroxyquinoline

Ｂｏｔｈｒａｒｅｅａｒｔｈｉｏｎｓ[1 ] ａｎｄ 8 ｈｙｄｒｏｘ ｙｑｕｉｎｏｌｉｎｅｐｏｓｓｅｓｓａｎｔｉｂａｃｔｅｒｉａｌｆｕｎｃｔｉｏｎ[2 ] ,ａｎｄｔｈｅｉｒｃｏｍｐｌｅｘｅｓｈａｖｅｍｏｒｅｐｏｗｅｒｆｕｌｄｉｓｉｎ ｆｅｃｔｉｏｎ .Ｔｈｅｂｉｎａｒｙｃｏｍｐｌｅｘｅｓｏｆｔｈｅｍｗｅｒｅｒｅ ｐｏｒｔｅｄａｓｅａｒｌｙａｓ 1 96 3.Ｍｅａｎｗｈｉｌｅ ,ｔｈｅｒｅ ｓｅａｒｃｈｏｎｔｈｅｔｅｒｎａｒｙｃｏｍｐｌｅｘｅｓｏｆｔｈｅｍｈａｓｂｅｃｏｍｅｖｅｒｙａｃｔｉｖｅｉｎｒｅｃｅｎｔｙｅａｒｓａｎ…     

Taxometrics, polytomous constructs, and the comparison curve fit index: A Monte Carlo analysis.

The taxometric method effectively distinguishes between dimensional (1-class) and taxonic (2-class) latent structure, but there is virtually no information on how it responds to polytomous (3-class) latent structure. A Monte Carlo analysis showed that the mean comparison curve fit index (CCFI; Ruscio, Haslam, & Ruscio, 2006) obtained with 3 taxometric procedures—mean above minus below a cut (MAMBAC), maximum covariance (MAXCOV), and latent mode factor analysis (L-Mode)—accurately identified 1-class (dimensional) and 2-class (taxonic) samples and produced taxonic results when applied to 3-class (polytomous) samples. From these results it is concluded that using the simulated data curve approach and averaging across procedures is an effective way of distinguishing between dimensional (1-class) and categorical (2 or more classes) latent structure. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Synthesis and Crystal Structure of a 4f-3d Complex [La(DMF)_6(H_2O)_3][Cr(CN)_6]·2H_2O

Ｒｅｃｅｎｔｌｙ ,ｔｈｅｒｅｈａｓｂｅｅｎｃｏｎｓｉｄｅｒａｂｌｅｉｎ ｔｅｒｅｓｔｉｎｌａｎｔｈａｎｉｄｅ(Ⅲ )ｈｅｘａｃｙａｎｏｆｅｒｒａｔｅｓａｎｄｔｈｅａｎａｌｏｇｏｕｓｃｏｂａｌｔ(Ⅲ )ａｓｗｅｌｌａｓｃｈｒｏｍｉｕｍ(Ⅲ )ｃｏｍｐｌｅｘｅｓｂｅｃａｕｓｅｏｆｔｈｅｉｒｐｏｔｅｎｔｉａｌａｓｃａｔａｌｙｔｉｃ ,ｓｅｍｉｃｏｎｄｕｃｔｉｖｅ ,ａｎｄｍａｇｎｅｔｉｃｍａｔｅ ｒｉａｌｓ[1～ 4] .Ｆｏｒｅｘａｍｐｌｅ ,ｍａｇｎｅｔｉｃｓｔｕｄｉｅｓｏｎａｓｅｒｉｅｓｏｆｔｈｒｅｅ ｄｉｍｅｎｓｉｏ…     

Spectroscopy Study on Crystal Structure of Ce（NO3）3 （phen）2 and Interactions of Ce（NO3）3 （phen）2 with DNA

Inrecentyears ,Komiyaetal.[1] havefoundthatrareearthsionsmaybeoneofthestrongestcutre agentsofnucleicacids .Theexperimentalresults ,thatrareearthsrepresscancersonwholeanimalbodiesandonhumanbodies(invitro) ,indicatedthatrareearthselementsactuallyhavestrongf…     

Inhibition Effects of Chloroquinolines on Corrosion of Mild Steel in Hydrochloric Acid Solution

The corrosion inhibition efficiencies of four compounds namely N-[(1E)-(2-chloroquinolin-3-yl)methylene]-N-phenylamine(CQMA),N-(1E)-(2-chloroquinolin-3-yl)methylene]-N-(4-fluorophenyl)amine(CQMFA),N-(4-chloro phenyl)-N-[(1E)-(2-chloroquinolin-3-yl)methylene]amine(CQMCA),and N-(4-bromo phenyl)-N-[(1E)-(2-chloroquinolin-3-yl)methylene]amine(CQMBA)on mild steel corrosion in hydrochloric acid media were investigated using mass loss,potentiodynamic polarization and electrochemical impedance spectroscopy.For all the studied inhibitors the inhibition efficiency values were found to increase with increasing concentration up to 5.00×10-4 mol·dm-3.Scanning electron microscopic technique showed the formation of a thick film on the steel surface in the presence of inhibitors.     

Amphiphilic poly(Ala)-b-poly(Sar) microspheres loaded with hydrophobic drug

Amphiphilic block polypeptides, (Ala)m(Sar)n, were synthesized. Transmission electron microscopy showed that three kinds of block polypeptides, (Ala)42(Sar)21, (Ala)34(Sar)22, and (Ala)34(Sar)27, formed spherical aggregates in water. Dynamic light scattering measurement revealed that the average diameters of (Ala)42(Sar)21 and (Ala)34(Sar)22 aggregates were in the range of 80-90 nm, whilst that of (Ala)34(Sar)27 was about 30 nm. The polypeptides in aqueous solution took a beta-sheet structure, while they took an alpha-helical conformation in trifluoroethanol. These polypeptide aggregates took up 8-anilinonaphthalene-1-sulfonate (ANS), and the capacity of the aggregates for ANS decreased in the order of (Ala)42(Sar)21 > (Ala)34(Sar)22 > (Ala)34(Sar)27. Sumithion, which is a commercial agricultural insecticide, was also taken up by the polypeptide aggregates. When increasing amounts of Sumithion were introduced, (Ala)42(Sar)21 aggregates kept their shape, but (Ala)34(Sar)27 aggregate increased in size. These different behaviors of the polypeptide aggregates were discussed in terms of different structure of aggregates.