1381   Acceptability of supplementary QF-PCR among women undergoing prenatal diagnosis in mainland China Acceptability of supplementary QF-PCR among women undergoing prenatal diagnosis in mainland China    2012 查看全文

1382   H2 production by methane decomposition: Catalytic and technological aspects H2 production by methane decomposition: Catalytic and technological aspects    2012 Ni and Co supported on SiO2 and Al2O3 silica cloth thin layer catalysts have been investigated in the catalytic decomposition of natural gas (CDNG) reaction. The influence of carrier nature and reaction temperature was evaluated with the aim to individuate the key factors affecting coke formation. Both Ni and Co silica supported catalysts, due to the low metal support interaction (MSI), promotes the formation of carbon filament with particles at tip. On the contrary, in case alumina was used as ... 查看全文

1383   The ultrasonographic image of the infant hip affected by developmental dysplasia with a positive Ortolani's sign The ultrasonographic image of the infant hip affected by developmental dysplasia with a positive Ortolani's sign Francesco M. Lotito, Giuseppe Rabbaglietti;Margherita Notarantonio    2002 . Instability of the hip may be assessed by the Ortolani and Barlow tests, which are the keystone of clinical screening for developmental dysplasia of the hip (DDH). However, Ortolani's sign implies that there is strong evidence of a severe form. of DDH with a completely dislocated, but still reducible, femoral head. Barlow's test addresses several different forms of "instability" of the hip that are quite difficult to describe and in 80% of cases disappear during growth. For this reason, Ortola... 查看全文

1384   Retained gallbladder/cystic duct remnant calculi as a cause of postcholecystectomy pain Retained gallbladder/cystic duct remnant calculi as a cause of postcholecystectomy pain R. M. Walsh, J. L. Ponsky;J. Dumot    2002 Background  Pain following cholecystectomy can pose a diagnostic and therapeutic dilemma. We reviewed our experience with calculi retained in gallbladder and cystic duct remnants that present with recurrent biliary symptoms. 查看全文

1385   A New Nitinol Monofilament Stent: Early Experience with Use for Transjugular Intrahepatic Portosystemic Shunts A New Nitinol Monofilament Stent: Early Experience with Use for Transjugular Intrahepatic Portosystemic Shunts Chang Jin Yoon, Jin Wook Chung, Hyun Beom Kim, Joon Woo Lee;Jae Hyung Park    2002 The purpose of this study was to investigate the suitability of a new nitinol monofilament stent (Niti-S) for transjugular intrahepatic portosystemic shunt (TIPS) creation. TIPS was performed with a Niti-S stent in 22 patients for variceal bleeding (n = 20) or intractable ascites (n = 2). The efficacy, complication, and patency rates during the follow-up period (up to 27 months, mean 13.9 months) were evaluated. TIPS was successfully perfor... 查看全文

1386   The use of primitive character state distributions in the assessment of holophyly The use of primitive character state distributions in the assessment of holophyly Mark Wilkinson    1991 Cladistic analyses are based on the distinction between primitive and derived character states (hypotheses of the polarity of evolutionary transformations) and a complete reliance on only derived character state distributions as bona fide evidence of holophyletic assemblages of taxa. The cladistic premise that only derived character state distributions provide evidence of holophyly is reconsidered and shown to be both unjustified and inconsistent with the desire or methodological prescription of... 查看全文

1387   Fresh Green Tea and Gallic Acid Ameliorate Oxidative Stress in Kainic Acid-Induced Status Epilepticus Fresh Green Tea and Gallic Acid Ameliorate Oxidative Stress in Kainic Acid-Induced Status Epilepticus Hsiao-Ling Huang†, Chih-Cheng Lin‡, Kee-Ching G. Jeng§, Pei-Wun Yao‡, Lu-Te Chuang‡, Su-Ling Kuo‡, a    2012 Green tea is one of the most-consumed beverages due to its taste and antioxidative polyphenols. However, the protective effects of green tea and its constituent, gallic acid (GA), against kainic acid (KA)-induced seizure have not been studied. We investigated the effect of fresh green tea leaf (GTL) and GA on KA-induced neuronal injury in vivo and in vitro. The results showed that GTL and GA reduced the maximal seizure classes, predominant behavioral seizure patterns, and lipid peroxidation in m... 查看全文

1388   A variable target intensity-restrained global optimization (VARTIGO) procedure for determining three-dimensional structures of polypeptides from NOESY data: Application to gramicidin-S A variable target intensity-restrained global optimization (VARTIGO) procedure for determining three-dimensional structures of polypeptides from NOESY data: Application to gramicidin-S Yuan Xu, István P. Sugár;N. Rama Krishna    1995 A global optimization method for intensity-restrained structure refinement, based on variable target function (VTF) analysis, is illustrated using experimental data on a model peptide, gramicidin-S (GS) dissolved in DMSO. The method (referred to as VARTIGO for variable target intensity-restrained global optimization) involves minimization of a target function in which the range of NOE contacts is gradually increased in successive cycles of optimization in dihedral angle s... 查看全文

1389   Ultrasound-assisted extraction in the determination of arsenic, cadmium, copper, lead, and silver in contaminated soil samples by inductively coupled plasma atomic emission spectrometry Ultrasound-assisted extraction in the determination of arsenic, cadmium, copper, lead, and silver in contaminated soil samples by inductively coupled plasma atomic emission spectrometry Ari Väisänen, Reijo Suontamo, Janne Silvonen;Jukka Rintala    2002 An extraction method was developed for the determination of toxic elements in contaminated soil samples by inductively coupled plasma atomic emission spectrometry (ICP-AES). The determination of arsenic, cadmium, lead, and silver in ultrasound-assisted extracts of SRM 2710 and SRM 2711 by ICP-AES was carried out with high accuracy and precision (RSD<3.7%). The certified concentrations of the SRMs were obtained for arsenic, cadmium, lead, and silver by using an ultrasound-assisted extraction m... 查看全文

1390   The vegetable weevil, Listroderes costirostris Schoenherr (Curculionidae: Cyclominae): a new invasive pest in Israel The vegetable weevil, Listroderes costirostris Schoenherr (Curculionidae: Cyclominae): a new invasive pest in Israel Ariel-Leib-Leonid Friedman    2009 Two females of Listroderes costirostris Schoenherr (Curculionidae: Cyclominae: Rhytirrhinini) were collected in Israel. This is the first record of this species in the East Mediterranean region. 查看全文

1391   Method and apparatus for continuous Ic examination of HTS tape using magnetic circuit Method and apparatus for continuous Ic examination of HTS tape using magnetic circuit    2011 A new method based on the principle of magnetic circuits is proposed and realized for continuous Ic examination of HTS tapes. The greatest advantages of the new method are that it first eliminates all the noise caused by mechanical iluctuations, and thus makes high speed and high stability measurement possible, and second has a natural ability to measure HTS tape with a magnetic substrate. The principle of the method is introduced with the help of Finite Element Analysis. An apparatus for examin... 查看全文

1392   Electric field effect in diluted magnetic insulator anatase Co: TiO 2 Electric field effect in diluted magnetic insulator anatase Co: TiO 2    2005 An external electric field induced reversible modulation of a room temperature magnetic moment and coercive field is achieved in an epitaxial and insulating thin film of dilutely cobalt-doped anatase TiO2. This first demonstration of an electric field effect in any oxide-based diluted ferromagnet is realized in a high quality epitaxial heterostructure of PbZr 0.2Ti0.8O3/Co: TiO2/SrRuO 3 grown on (001) LaAlO3. The observed effect, which is about 15% in strength in a given heterostructure, can be ... 查看全文

1393   Umbilical artery catheter use complicated by pseudoaneurysm of the aorta Umbilical artery catheter use complicated by pseudoaneurysm of the aorta Mary R. Wyers, William H. McAlister    2002 . We report a case of a large aortic mycotic pseudoaneurysm in a premature infant, a rare but serious complication associated with sepsis and umbilical artery catheter (UAC) use. Sonography is an appropriate first-line imaging modality for detection of aortic pseudoaneurysms. Increased awareness of this rare complication may lead to earlier diagnosis in the high-risk premature infant with a history of a UAC and sepsis. 查看全文

1394   A Polyhydroxybutyrate Biodegradable Stent: Preliminary Experience in the Rabbit A Polyhydroxybutyrate Biodegradable Stent: Preliminary Experience in the Rabbit M. Unverdorben, A. Spielberger, M. Schywalsky, D. Labahn, S. Hartwig, M. Schneider, D. Lootz, D. Beh    2002 Purpose: The lifelong persistence of foreign bodies within the arteries may contribute to restenosis. Thus, biodegradable devices might decrease recurrence rates. Methods: Eleven polyhydroxybutyrate biodegradable stents and 13 tantalum stents were implanted into the iliac arteries of New Zealand white rabbits for up to 30 weeks. After killing the animals, the specimens were harvested, fixed in formalin, processed in paraffin, and stained. ... 查看全文

1395   Random non-cupping revisited Random non-cupping revisited George Barmpalias    2006 Abstract. Say that Y has the strong random anticupping property if there is a set A such that for every Martin-L?f random set R Y ≤T A ⊕ R ? Y ≤T R (in this case A is an anticupping witness for Y). Nies has shown that every random ? 0 2 set has the strong random anticupping property via a promptly simple anticupping witness. We show that every ? 0 2 set has the random anticupping property via a promptly simple anticupping witness. Moreover, we prove the following stronger statement: for every no 查看全文

1396   Three new species of melastomataceae from the southeastern Atlantic Forest of Brazil Three new species of melastomataceae from the southeastern Atlantic Forest of Brazil Renato Goldenberg;Marcelo Reginato    2007 Three species are described here that occur in montane and high-montane forests in Southeastern Brazil.Miconia shepherdii belongs to sectionGlossocentrum and occurs on the Serra da Mantiqueira, on the border between the states of S?o Paulo, Minas Gerais, and Rio de Janeiro.Miconia kollmannii belongs to sectionHypoxanthus (formerChaenanthera) and occurs in the state of Espírito Santo.Ossaea suprabasalis was also collected in the state of Espírito Santo. 查看全文

1397   On a model of controllable logical element on the macrolevel. Part 2 On a model of controllable logical element on the macrolevel. Part 2    1992 Basing on the notions of the control theory and quantum mechanics the mechanisms of the primary data processing process realization in a set of quantum-dimensional cells with electrostatic couplings between them, were studied. The dynamics of the quadrupole-quadrupole interaction between two quantum cells separated by the potential barrier was considered. It was supposed that the cell was located in the self-consistent field created by the cell itself and the cells nearest to it. The main kinds ... 查看全文

1398   In-plane silicon probes for simultaneous neural recording and drug delivery In-plane silicon probes for simultaneous neural recording and drug delivery    2010 This paper reports on the design, fabrication and characterization of silicon-based microprobes for simultaneous neural recording and drug delivery. The fabrication technology is based on two-stage deep reactive ion etching combined with silicon wafer bonding and grinding to realize channel structures integrated in needle-like probe shafts. Liquids can be supplied to microfluidic devices via in-plane and out-of-plane ports. The liquid is dispensed at circular out-of-plane ports with a diameter o... 查看全文

1399   Evolutionary construction of geographical networks with nearly optimal robustness and efficient routing properties Evolutionary construction of geographical networks with nearly optimal robustness and efficient routing properties    2009 Robust and efficient design of networks on a realistic geographical space is one of the important issues for the realization of dependable communication systems. In this paper, based on a percolation theory and a geometric graph property, we investigate such a design from the following viewpoints: (1) network evolution according to a spatially heterogeneous population, (2) trimodal low degrees for the tolerant connectivity against both failures and attacks, and (3) decentralized routing within s... 查看全文

1400   Ferroelectric and piezoelectric thin films and their applications for integrated capacitors, piezoelectric ultrasound transducers and piezoelectric switches Ferroelectric and piezoelectric thin films and their applications for integrated capacitors, piezoelectric ultrasound transducers and piezoelectric switches    2010 Ferroelectric and piezoelectric thin films are gaining more and more importance for the integration of high performance devices in small modules. High-K 'Integrated Discretes' devices have been developed, which are based on thin film ferroelectric capacitors integrated together with resistors and ESD protection diodes in a small Si-based chip-scale package. Making use of ferroelectric thin films with relative permittivity of 950-1600 and stacking processes of capacitors, extremely high capacitan... 查看全文

1401   Congenital diaphragmatic hernia: experience without extracoporeal membrane oxygenation Congenital diaphragmatic hernia: experience without extracoporeal membrane oxygenation Saud Al-Shanafey, Mike Giacomantonio;Harry Henteleff    2002 While extracorporeal membrane oxygenation (ECMO) is used in the management of congenital diaphragmatic hernia (CDH), its value is questioned. The charts of all newborn infants who presented in respiratory distress due to CDH over the past 27 years were reviewed. Inborn versus outborn, year of repair, use of ultrasound (US), and the predictive value of various parameters was evaluated. Fisher's exact test and logistic regression tests were used to analyze data. There... 查看全文

1402   Gadodiamide as an Alternative Contrast Agent in Intravenous Digital Subtraction Angiography and Interventional Procedures of the Upper Extremity Veins Gadodiamide as an Alternative Contrast Agent in Intravenous Digital Subtraction Angiography and Interventional Procedures of the Upper Extremity Veins Tanzer Sancak, Sadk Bilgic;Umman Sanldilek    2002 Purpose: Patients with renal insufficiency or other contraindications to iodine-based contrast agents present a significant management dilemma when angiography or interventional procedures are required. We describe the use of gadolinium as an alternative contrast agent for intravenous digital subtraction angiography (IV-DSA) and interventional procedures of the upper extremity veins. Methods: Sixteen patients with symptoms of with moderate renal insufficiency underwent digital subtraction angiog... 查看全文

1403   Obstetric ultrasound: What the radiologist needs to know Obstetric ultrasound: What the radiologist needs to know Josephine M. McHugo    2001 Obstetric ultrasound forms an integral part of modern obstetric care. This includes the use of ultrasound for screening as well as in diagnostic and therapeutic roles. Radiologists involved in this field must have the appropriate training and expertise to match the type of investigation or screening procedure to be undertaken. There should be an explicit understanding of this training and expertise both for the referring obstetrician and expectant mother. All radiologists... 查看全文

1404   Mode competitions and dynamical frequency pulling in Mie nanolasers: 3D ab-initio Maxwell-Bloch computations Mode competitions and dynamical frequency pulling in Mie nanolasers: 3D ab-initio Maxwell-Bloch computations    2008 We investigate the process of light matter interaction in a spherical Mie nanolaser. We derive a rigorous theory based on a three dimensional vector set of Maxwell-Bloch equations and solve the resulting equations through a parallel Finite-Difference Time-Domain Maxwell-Bloch (FDTD-MB) code. Our results predicts a rich physical scenario, ranging from nontrivial vectorial energy matter interplay in the pre-lasing regime to mode competitions and dynamical frequency pulling phenomena. Application o... 查看全文

1405   Progress in wide bandgap ferromagnetic semiconductors and semiconducting oxides Progress in wide bandgap ferromagnetic semiconductors and semiconducting oxides    2004 The realization of the potential of spin-based devices still faces many fundamental challenges. One of the most notable of these is the synthesis of materials that are suitable as spin-polarized sources at room temperature and facilitate efficient spin injection into semiconductors, as well as coherent manipulation and detection of injected spins in device structures. In this review we summarize recent progress in synthesis of GaN, SiC, ZnO,TiO 2, SnO2, BaTiO3, Cu2O,SrTiO 3 and KTaO3 doped with ... 查看全文

1406   Technology of "coal and gas simultaneous extraction" for high gassy coal seams group Technology of "coal and gas simultaneous extraction" for high gassy coal seams group    2009 The gas concentration in upper corners and air return ways in fully mechanized face always exceeds limit during mining activeties in near the high gas coal seam group in Shaqu coal mine. In order to solve the problem, we proposed the combined technique of roof borehole group with fracture borehole group using 1 000 m long oriented drill equipment imported from Germany and built the technical system of "simultaneous extraction of coal and gas". Based on the theoretical analysis for 1000 m long dr... 查看全文

1407   Contribution of Natural Organic Matter to Copper Leaching from Municipal Solid Waste Incinerator Bottom Ash Contribution of Natural Organic Matter to Copper Leaching from Municipal Solid Waste Incinerator Bottom Ash André van Zomeren and Rob N. J. Comans*    2004 The leaching of heavy metals, such as copper, from municipal solid waste incinerator (MSWI) bottom ash is a concern in many countries and may inhibit the beneficial reuse of this secondary material. The enhanced leaching of copper from three MSWI bottom ash samples by dissolved organic carbon (DOC) was investigated with specific attention for the nature of the organic ligands. A competitive ligand exchange?solvent extraction (CLE-SE) method was used to measure Cu binding to DOC. Two types of bin... 查看全文

1408   Radiologische Nachsorge des transjugulären intrahepatischen Stentshunts (TIPSS) Radiologische Nachsorge des transjugulären intrahepatischen Stentshunts (TIPSS) H.J. Hansmann, G. Nöldge, U. Leutloff, B. Radeleff, P. Sauer;G.M. Richter    2001 Der transjugul?re intrahepatische Stentshunt (TIPSS) ist eine etablierte minimal invasive Therapie der Komplikationen der portalen Hypertension (rezidivierende Varizenblutungen, therapierefrakt?rer Aszites und das Leberversagen beim Budd-Chiari-Syndrom). Aufgrund einer hohen Rate von Traktstenosen und Verschlüssen sind regelm??ige Kontrolluntersuchungen unabdingbar. Trotz moderner nichtinvasiver bildgebender Verfahren ist die transjugul?re Portographie ... 查看全文

1409   Treehoppers (Hemiptera: Membracidae) Treehoppers (Hemiptera: Membracidae) Chris H. Dietrich    2008 查看全文

1410   Human resources audit Human resources audit Marta Fossas Olalla;Miguel Angel Sastre Castillo    2002 Human resource management (HRM) has experienced a strong evolution. In order to provide useful information to managers, it is necessary to evaluate the results generated by the design and implementation of personnel policies. This is the goal of the HR audit that includes two different analyses and valuations: the HR policies and their level of fit with the strategy of the firm, and the characteristics of human capital. Several criteria have been used to assess different ... 查看全文

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