Filters: Collection:"ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 126 |  | Morse, Michael David | Optical spectroscopy of tungsten carbide (WC) | Resonant two-photon ionization spectroscopy has been used to study the diatomic transition-metal carbide, WC. A low-resolution scan revealed a five-member vibrational progression beginning with the 0-0 band at 17 585 cm-1. Analysis of this progression yielded a vibrational frequency of ?'e8(184W12C)... | 2002 | |
| 127 |  | Mallat, Chibli | The Original Sin: Terrorism or Crime Against Humanity | Once the Middle East connection was established over the September 11 attacks, apprehension and uneasiness gripped the region. Eyebrows are now raised over the word terrorism, and there is hardly a newspaper in the Arab and Muslim world that does not question everyday the definition of the word, ami... | 2002 | |
| 128 |  | Harrison, Reid R. | Phonotaxis in crickets and robots | Over the past decade, we have built and tested several robot models to investigate a particular biological behavior, the sound localizing (phonotaxis) ability of the cricket. This work has had several purposes. One is to develop robotic technology, such as novel sensors and control systems, by copyi... | Phonotaxis | 2002 |
| 129 |  | Miller, Joel Steven; Epstein, Arthur J. | Photoinduced magnetization in the organic-based magnet Mn(TCNE)x.y(CH2Cl2) | Photoinduced magnetization in a magnet based on organic species is reported for the first time. Upon optical excitation in the blue region of spectrum, Mn (tetracyanoethylene)x .y(CH2Cl2) (x=2,y-0.8) exhibits increased magnetic susceptibility at temperatures as high as 75 K, accompanied with photo-i... | Absorption; Magnetic; Infrared | 2002 |
| 130 |  | Krensky, Beth | Prayer Wings I | Form: sculpture; Medium: wood, copper, gold leaf, feathers, beeswax; Dimensions: 7" x 5' x 1' | 2002 | |
| 131 |  | Krensky, Beth | Prayer Wings II | Form: sculpture; Medium: wood, copper, gold leaf, milagros; Dimensions: 7" x 5' x 1' | 2002 | |
| 132 |  | Couldwell, William T. | Predictive value of serum prolactin levels measured immediately after transsphenoidal surgery | Object. Prolactin-secreting pituitary adenomas may be managed by surgery, medication, radiotherapy, or observation. The authors reviewed a consecutive series of patients who were followed for at least 5 years after surgery to assess the prognostic significance of preoperative factors (tumor size and... | Prolactin; Transsphenoidal surgery; Pituitary adenoma; Prolactinoma; Transsphenoidal approach | 2002 |
| 133 |  | Tiwari, Ashutosh | Pulsed laser deposition and characterization of Zn1-xMnxO films | Here we present our results of structural, optical, and magnetic measurements of Zn1-xMnxO thin films. These films were grown epitaxially on (0001) sapphire substrates by using pulsed laser deposition technique. The maximum Mn content (x=0.36) is found to be much higher than allowed by thermal equl... | 2002 | |
| 134 |  | Armentrout, Peter B. | Reactions of Pt+ with H2, D2, and HD: effect of lanthanide contraction on reactivity and thermochemistry | A guided ion beam tandem mass spectrometer is used to examine the kinetic energy dependence of reactions of the third-row transition metal cation, Pt1, with molecular hydrogen and its isotopologs. A flow tube ion source produces Pt1 ions in its electronic ground state term and primarily in the lowes... | Metal clusters; Platinum ions; Lanthanide contraction; Bond energies; Endothermic reactions; Transition metal ions; Dihydrogen | 2002 |
| 135 |  | Armentrout, Peter B. | Reactions of Ta+ and W+ with H2, D2, and HD: effect of lanthanide contraction and spin-orbit interactions on reactivity and thermochemistry | A guided ion beam tandem mass spectrometer is used to examine the kinetic energy dependence of reactions of the third-row transition metal cations, Ta1, and W1, with molecular hydrogen and its isotopologs. A flow tube ion source produces Ta1 and W1 ions in their electronic ground state term and p... | Metal clusters; Tantalum ions; Tungsten ions; Lanthanide contraction; Bond energies; Endothermic reactions; Transition metal ions; Dihydrogen | 2002 |
| 136 |  | Armentrout, Peter B. | Reactions of Ta+, W+, and Pt+ with H2, D2, and HD: effect of lanthanide contraction and spin-orbit interactions on reactivity and thermochemistry | There have been extensive experimental studies of the reactions of atomic first-row and second-row transition metal cations with dihydrogen and its isotopic analogues in our group. For third-row transition metal cations, however, only La+ and Lu+ systems have been studied experimentally although t... | Lanthanide contraction; Spin-Orbit interactions; Reactivity | 2002 |
| 137 |  | Mathews, V. John; Clark, Edward B. | Reconstruction of maximum blood velocity waveforms from doppler ultrasound measurements | Absfauct -This paper presents a novel algorithm for the extraction of maximum blood flow velocity waveform from Doppler measurements. This method is based on the short-term integrated spectrum of the Doppler signal, and does not require a pre-selected threshold level to deal with the background nois... | 2002 | |
| 138 |  | Anderson, Richard Bryan | Red-Haired Boy/Speed the Plough/Old Mother Flanagan | This is a 1:51 sound file. Track 3 of a clawhammer banjo demo CD by Rick Anderson. | Banjo music | 2002 |
| 139 |  | Kestle, John R. W. | Reduction of transfusion rates in the surgical correction of sagittal synostosis | Object. As public concern about the risks of blood transfusions increased in the mid-1990s, avoidance of transfusions became a goal of surgery for sagittal synostosis. This study was performed to confirm a hypothesized reduction in transfusion rates in recent years and to identify factors associated... | Sagittal synostosis; Sagittal craniosynostosis; Craniectomy; Allogenic blood transfusion; Reduction | 2002 |
| 140 |  | Stevens, Kenneth | Relative timing based verification of timed circuits and systems | Aggressive timed circuits, including synchronous and asynchronous self-resetting circuits, are particularly challenging to design and verify due to complicated timing constraints that must hold to ensure correct operation. Identifying a small, sufficient, and easily verifiable set of relative timin... | 2002 | |
| 141 |  | Chapman, David S. | Reply to comment by T.J. Osborn and K. R. Briffa on "Mid-Latitude (30?-60?N) climatic warming inferred by combining borehole temperatures with surface air temperatures" | We thank Osborn and Briffa [2002] for their comment regarding our use of the climatic reconstruction of Overpeck et al. [1997]. We [Harris and Chapman, 2001] had taken a proxy, Arctic wide summer-weighted annual temperature reconstruction [Overpeck et al., 1997], given in dimensionless sigma units (... | Surface air temperature; Ground surface temperature; Borehole temperatures; Geothermal observations; Heat transfer | 2002 |
| 142 |  | Gardner Michael K.; Woltz, Dan J. | Representation of memory for order of mental operations in cognitive tasks | Recent research shows that people learning a cognitive task acquire a memory for the order of operations applied, independent of the data to which those operations were applied. We designed two experiments to show how this sequence memory is represented. Experiment 1 compared predictions based on... | Cognitive skills; Operation sequences; Sequential skills | 2002 |
| 143 |  | Morse, Michael David | Resonant two-photon ionization spectroscopy of NiC | A spectroscopic investigation of jet-cooled diatomic NiC has revealed a complex pattern of vibronic levels in the wave number range from 21 700 to 27 000 cm-1. Of the more than 50 vibronic bands observed, 31 have been rotationally resolved and analyzed. All are ?'=0+??"=0+ transitions, consistent wi... | 2002 | |
| 144 |  | Goller, Franz | Respiratory motor correlates of song plasticity in young adult zebra finches | Young adult zebra finches (Taeniopygia guttata, 90150 phd) sing a stereotyped song, but can show rapid changes in song structure if sensory feedback is disrupted. The vocal motor correlates accompanying induced song plasticity have not yet been examined. To investigate motor changes underlying song ... | Pattern; Muting; Sound | 2002 |
| 145 | | Anderson, Richard Bryan | Rickett's/Staten Island/The Black Horse (Hornpipes) | This is a 1:53 sound file. Track 1 of a clawhammer banjo demo CD by Rick Anderson. | Banjo music | 2002 |
| 146 |  | Reichler, Thomas J. | Role of boundary and initial conditions for dynamical seasonal predictability | The importance of initial state and boundary forcing for atmospheric predictability is explored on global to regional spatial scales and on daily to seasonal time scales. A general circulation model is used to conduct predictability experiments with different combinations of initial and boundary co... | Atmospheric predictions; seasonal forecasting; boundary forcing | 2002 |
| 147 |  | Morse, Michael David | Rotationally resolved spectra of Pt? | High-resolution laser-induced fluorescence spectroscopy has been used to investigate the 18 163 cm21 band of Pt2 in a supersonically cooled molecular beam. Rotational constants of the ground and excited states were extracted from the rotationally resolved spectrum and determined to be B0'=0.031 754(... | 2002 | |
| 148 |  | Adler, Frederick R.; Liou, Theodore G.; Cahill, Barbara C. | Selection of patients with cystic fibrosis for lung transplantation | Lung transplantation is the most aggressive therapy available for end-stage lung disease from cystic fibrosis (CF). A new predictive survival model of CF uses demographic, FEV1, nutritional, microbiologic, and acute exacerbation data to produce precise estimates of 5-year survival. | Predicted survival; Living donor; Mechanical ventilation | 2002 |
| 149 |  | Tiwari, Ashutosh | Self-aligned passivated copper interconnects: a novel technique for making interconnections in ultra large scale integration device applications | We have developed a technique to grow self-aligned epitaxial Cu/MgO films on Si (100) using a Pulsed Laser Deposition Method. In this method we deposit a uniform film of Cu/Mg (5-7%) alloy over Si (100) at room temperature using TiN as an intermediate buffer layer. As a result of HRTEM (with spatial... | Passivated copper interconnects; Diffusion barriers; Copper diffusion; Tantalum nitride | 2002 |
| 150 |  | Hansen, Charles D. | Semotus visum: a flexible remote visualization framework | By offering more detail and precision, large data sets can provide greater insights to researchers than small data sets. However, these data sets require greater computing resources to view and manage. Remote visualization techniques allow the use of computers that cannot be operated locally. The S... | Remote visualization; Semotus Visum | 2002 |