Mice with targeted disruptions in Hox genes have been generated to evaluate the role of the Hox complex in determining the mammalian body plan. This complex of 38 genes encodes transcription factors that specify regional information along the embryonic axes. Early in vertebrate evolution an ancestra...
The large magnetic-field-dependent ac absorption in superconducting Y1Ba2Cu3Oy ceramics and powders decreases slowly with increasing frequency in the range 2-16 MHz. The magnetic-field-dependent ac absorption is observed below Tc in superconducting Y1Ba2Cu3Oy ceramics, powders and twinned crystals ...
Copper-octahedral oxygen perovskites; Superconducting Y1Ba 2Cu3Oy; ac absorption
We present photoexcitation studies of vacuum deposited neutral films of α,ω-substituted sexithiophene (α-6T) using photoinduced absorption (PA) and PAdetected magnetic resonance spectroscopy (PADMR). We find evidence for photoinduced polarons having spin 1/2, with two absorption bands at 0.80...
Photoexcitations in poly[2-methoxy-5-(2'-ethyl-hexyloxy -p-phenylene vinylene] (MEH-PPV) and composites of MEH-PPV and C60 (MEH-PPV/C60) were studied by photoinduced absorption and absorptiondetected magnetic-resonance spectroscopies. We report direct evidence that the prominent triplet photoexci...
We present a semantic theory that allows us to discuss the semantics of indeterminate operators in a dataflow network. The assumption is made that the language in which the indeterminate operators are written has a construct that allows for the testing of availability of data on input lines. We then...
A denotational semantics is given for a lazy functional language with monotonic side-effects arising from the unification of singly-bound logical variables. The semantics is based on a Scott-style information system, which elegantly captures the notion of "constraint additin" inherent in unificati...
Power converters constructed from discrete components are difficult to mass produce, and the installation involves a significant labor cost to have the proper interconnection among the panel, inverter and the grid. These facts indicate that the present PV technology may not be able to address the ch...
Form: painting; Medium: oil and latex; Dimensions: 18 x 24"
Painting
2008
309
Cowan, Derek; DuVall, Scott L.
Academic podcasting:quality content delivery 2009-09-23Our weekly department seminar has been available as streaming video for several years. Streaming video depends on a reliable, broadband connection for the entire duration of viewing for consistent video quality. Even users with faster internet connections have reported poor video quality at times. A new system for distributing the seminar was developed that takes advantage of content syndication technology. Podcasting is a form of web syndication whereby multimedia content is made available for use by other applications. By making the seminar available as a podcast, some of the problems related to streaming video broadcasts are resolved.text; imageAcademic Podcasting: Quality Content Delivery Jacob S Tripp BS1, Scott L DuVall BS1, Derek L Cowan2, Aaron W C Kamauu MD, MPH, MS1 1Department of Biomedical Informatics, University of Utah, Salt Lake City, Utah 2Spencer S Eccles Health Sciences Library, University of Utah, Salt Lake City, Utah Feed Reader Checks for and Downloads Attend any New Files Seminar Watch Live Broadcast Watch Streaming Video Create Downloadable Video Create Streaming Video Retrieve Downloadable Video Browse to Live Internet Streaming Video Broadcast Watch Downloaded Video Transfer to Portable Device Watch on Portable Device Record Update RSS Feed Introduction Our weekly department seminar has been available as streaming video for several years. Streaming video depends on a reliable, broadband connection for the entire duration of viewing for consistent video quality. Even users with faster internet connections have reported poor video quality at times. A new system for distributing the seminar was developed that takes advan-tage of content syndication technology. Podcasting is a form of web syndi-cation whereby multimedia content is made available for use by other appli-cations. By making the seminar available as a podcast, some of the problems related to streaming video broadcasts are resolved. In addition to be available as a live webcast, department seminars are recorded in AVI format, converted to Real Media streams, MP4 video and MP3 audio formats, and stored on the Eccles Health Science Library multimedia server. We developed a database-driven web application to input and store seminar metadata and automatically generate files that conform to Really Simple Syndication (RSS) 2.0 (http://blogs.law.harvard.edu/tech/rss), an XML schema that defines machine-readable descriptions and links to media in a web feed. These RSS files also contain specific tags that allow the feeds to be published in the iTunes Music Store Podcast Directory. End users can subscribe to video and audio feeds through web-based podcast listeners or desktop-based feed aggregators that support file enclosures. The podcast is indexed in several podcast directories including Apple Computer's (Cupertino, CA) iTunes Music Store Podcast Directory. iTunes is unique in that it combines a web-based podcast directory with the desktop-based feed reader. Discussion Podcasting is quickly gaining popularity. Podcasts can be transferred to por-table media devices allowing for viewing away from the computer. By making the seminar available in this format, viewers experience an improved viewing experience at a convenient time and place. Only a small fraction of existing podcast would be considered academic. The University of Utah Bio-medical Informatics Seminar is one of only two podcasts listed in the iTunes index on the topic of Medical or Biomedical Informatics. This seminar is an approved source of CME for live viewing, either in person or remotely. This presents the possibility of the podcast also becoming an online source for CME credit. Acknowledgements This research was supported by National Library of Medicine Training Grant T15 LM007124. 60University of Utah Biomedical Informatics Seminar - Full Video http://uuhsc.utah.edu/medinfo/index.cfm?Content=Seminar (c) 2006 University of Utah - Biomedical InformaticsTue, 11 Apr 2006 14:06:37 MSTWed, 09 Aug 2006 08:49:47 MSTA Weekly Video Podcast of the Biomedical Informatics Graduate Seminar Series from the University of Utah School of Medicine. Biomedical InformaticsA Weekly Biomedical Informatics Graduate Seminar Series from the University of Utah School of Medicineen-usUtah Health Information Network Health Information Exchange (HIE)
Our weekly department seminar has been available as streaming video for several years. Streaming video depends on a reliable, broadband connection for the entire duration of viewing for consistent video quality. Even users with faster internet connections have reported poor video quality at times. A...
In response to the need for providing advanced engineering education in a shorter time period than is currently possible by traditional curricula, we have created an Accelerated Dual Degree program in biomedical engineering. The purpose of this pilot program is to attract the brightest students, g...
In response to the need for providing advanced engineering education in a shorter time period than is currently possible by traditional curricula, we have created an Accelerated Dual Degree program in biomedical engineering. The purpose of this pilot program is to attract the brightest students, g...
We have initiated a pilot program that accelerates the studies of a small group of highly qualified students early in their college careers and allows them to earn both a bachelor's degree and a master's degree in about four years after starting college. It does this by introducing them early to res...
For large time-varying data sets, memory and disk limitations can lower the performance of visualization applications. Algorithms and data structures must be explicitly designed to handle these data sets in order to achieve more interactive rates. The Temporal Branch-on-Need Octree (T-BON) extends t...
The Rogers model for adoption and diffusion of innovation can be applied to the adoption of new technology. We know innovators need to start with the early adopters to build capacity before reaching the majority level. The National Network of Libraries of Medicine MidContinental Region (NN/LM MCR) s...
NN/LM; RML; National Network of Libraries of Medicine; MidContinental Region (MCR); Spencer S. Eccles Health Sciences Library
This Article contends that workplace accommodations should be predicated on need or effectiveness instead of group-identity status. It proposes that, in principle, "accommodating every body" be achieved by extending Americans with Disabilities Act-type reasonable accommodation to all work-capable me...
Broad differences exist in social and economic life between residents living in urban versus rural areas of China. To study the health implications of these differences, the current study employs data from a longitudinal study of older adults in the Beijing municipality, a region of China that has w...
Chinese; Elderly; Health care; Quality of life; Population
Accurate measurements of in-vivo hip kinematics may elucidate the mechanisms responsible for impaired function and chondrolabral damage in hips with femoroacetabular impingement (FAI). The objectives of this study were to quantify the accuracy and demonstrate the feasibility of using dual fluoroscop...
Bosonization is commonly used to calculate the ground-state energy and the dynamics of simple model nonmagnetic impurities in metals. We analyze the accuracy of this procedure in the calculation of the ground-state energy of a simple, solvable, model.
Abstract This paper presents a new approach to two-level hazard-free logic minimization in the context of extended burst-mode finite state machine synthesis targeting generalized C-elements (gC). No currently available minimizers for literal-exact two-level hazard-free logic minimization of extende...
An acoustic approach to thermal management in electronics can be efficient and it can be directly interfaced with electronic devices. It is based on two types of thermoacoustic heat engines, which are being developed for microcircuit applications. One type of device, the prime mover, converts heat t...
Acoustic and therapeutic properties of Doxorubicin (DOX) and paclitaxel (PTX)-loaded perfluorocarbon nanoemulsions have been investigated in a mouse model of ovarian cancer. The nanoemulsions were stabilized by two biodegradable amphiphilic block copolymers that differed in the structure of the hydr...
Cancer therapy; Targeted drug delivery; Nanobubbles; Ultrasound; Perfluoropentane
The properties of acoustic interneurons in fiddler (Uca pugilalor and U. minax) and ghost (Ocvpade qucldrula) crabs are described, as revealed bv tests with pure tones. Three types of interneurons were present in all species: tonic, which fired for the duration of the stimulus; phasic, which fire...
The frequency domain representation of a time signal afforded by the Fourier transform is a powerful tool in acoustic signal processing. The usefulness of this representation is rooted in the mechanisms of sound production and perception. Many sources of sound exhibit normal modes or natural frequen...
Purpose: This investigation was designed to elucidate the effects of repeated practice treatment on sound production accuracy in individuals with apraxia of speech (AOS) and aphasia. A secondary purpose was to determine if the addition of rate/rhythm control to treatment provided further benefits be...
In preparation for a discussion at the Charleston Conference, I am asking librarians, vendors, publishers, and system vendors who read Against the Grain to answer a survey about how services and products that support information delivery and dissemination are developed and change over time. For exa...
Acquiring Minds Want to Know column: "The concept of the paradigm, as generally cited in the literature, derives from the work of Thomas Kuhn in the 1960's. Kuhn, an historian of science, set out to explore how science, and scientists, actually worked. Kuhn found that scientific activity tends to be...
Thomas Kuhn; Paradigms; Librarianship, trends; Librarianship, Philosophy; of
An Acquiring Minds Want to Know column: "Acquisitions as a function faces two major challenges. One is the general lack of an automated system that manages complicated acquisitions processes, provides interfaces to vendors, publishers, and institutional financial departments, and gathers significant...
This year I went to CAUSE in Orlando FL, December 3-5, for the first time to see how it differed from EDUCOM (at the CAUSE meeting the two organizations voted to merge next year). The content seemed similar and some of the same attendees and vendors were there. Typical topics covered campus informat...
Acquiring Minds Want to Know column: "In the last issue of Against the Grain, I presented some ideas about the possible assumptions about obligations that underlie the scholarly paperback market. This article gets a little more practical and presents some figures from Yale for your consideration."
A new form of scholarship has emerged in recent years named "digital scholarship." I have seen it defined as online publishing or digitized material presented online, or, in other words, scholarship that appears in a digital form. However, a more compelling definition treats it as scholarship that d...
A new form of scholarship has emerged in recent years that can be called digital scholarship. I have seen it defined as online publishing or digitized material presented online, or, in other words, scholarship that appears in a digital form. However, a more compelling definition treats it as scholar...
Acquiring Minds Want to Know column: The fourth ALCTS Business of Acquisitions Institute will be held in Richmond at Virginia Commonwealth University June 3-4, 1993. These instituties are designed to teach a basic understanding of the complex function of acquiring materials for libraries to beginnin...
Acquisitions, Educational opportunities; Association for library collections and technical services
Acquiring Minds Want to Know column: "I thought for a change I would add a little humor to my column and play around with a variation of the old joke "how many librarians does it take to change a light bulb." The impetus for this came when I was writing a presentation on integrating electronic mater...
As librarians, vendors, and publishers, we deal with information every day, and we have developed policies to govern the acquisition and use of this information. Information policies on campuses have tended to focus on computing issues and information technology. Information policies give a lot of a...
Information policies; Information access; Computing; Free speech; Academic freedom
Fulltext has become a more prevalent offering in electronic resources. In some cases the original publisher may produce material both in print and electronic form or in electronic form only, while maintaining control over the contents. In other cases, another party may obtain the rights from the pu...
Full text; Digital libraries; Electronic information
This article is the third in a series dealing with intellectual property, technology, and information policies. It specifically addresses ownership of intellectual property in the academic environment, focusing on course materials, but providing commentary on other intellectual property.
Acquiring Minds Want to Know column: "With all the talk of plagiarism lately, I thought it was time to hear the story of an author who was a victim of plagiarism, a viewpoint that has yet to be presented in ATG.
This article will outline a specific suggestion both to aid some basic acquisitions functions and their management. It will focus primarily on use of vendors, vendor performance and business terms. I have several suggestions for improvement, which were touched on briefly in the first article, based...
Acquiring Minds Want to Know column. "The current discussions of outsourcing, re-engineering, and doing more with less demonstrate the fundamental shift in the way that librarians are being asked to provide their services.
Recently I was asked to speak on the topic of the future of technical services departments. Just being asked to address such a topic seemed to affirm that there was going to be a future, contrary to the fears expressed by many folks in the trenches. So I approached the topic with great hope, and thi...
Acquiring Minds Want to Know column: "Are there rules that govern the practices of librarians, vendors and publishers? Clearly there are ethical considerations that guide our behavior as individuals. Acquisitions librarians are in the midst of making formal their code of ethics. But what other, perh...
This is a frightening time to be a thirty-something acquisitions librarian. Convention dictates that I follow up that statement by saying that this is also a very exciting time to be a thirty-something acquisitions librarian, but I'll tell you what: it's mainly just scary. I worry a lot about wha...
Welcome to the first installment in the "Acquisitions Issues in Serials Management" column! The purpose of this inaugural essay is threefold: First, to explain the scope and purpose of the column; second, to invite future contributors; and third, to set out some potentially fruitful topics of di...
The Acquisitions for the Eighties Preconference, sponsored by the Association of American Publishers and R.T.S.D., was intended to bring together publishers, wholesalers and acquisitions librarians to explore the issues that will affect acquisitions in the coming decade and to consider ways in wh...
As of July 15, 1991 Yale University's Sterling Memorial Library began reconstituting an acquisition's department under Technical Services. In these days of bad news about closing departments, budget cuts and escalating serial prices, it's nice to be able to report some good news!
Yale University; Sterling Memorial Library; Acquisitions
This study explored how across-talker differences influence non-native vowel perception. American English (AE) and Korean listeners were presented with recordings of 10 AE vowels in /bVd/ context. The stimuli were mixed with noise and presented for identification in a 10-alternative forced-choice t...
This paper presents a Design for Testability (DFT) tool called ACT (Asynchronous Circuit Testing) which uses a partial scan technique to make macro-module based selftimed circuits testable. The ACT tool is the first oFits kind for testing macro-module based self-timed circuits. ACT modifies design...
Using recordings of peripheral nerve activity made with carbon fiber intrafascicular electrodes, we compared the performance of three different recording techniques (single channel, differential, and dual channel) and four different unit classification methods (linear discriminant analysis, temp...
The C terminus of the catalytic gamma-subunit of phosphorylase kinase comprises a regulatory domain that contains regions important for subunit interactions and autoinhibitory functions. Monospecific antibodies raised against four synthetic peptides from this region, PhK1 (362-386), PhK5 (342-366), ...
The potential energy surface for activation of methane by the third-row transition metal cation, Au+, is studied experimentally by examining the kinetic energy dependence of this reaction using guided ion beam tandem mass spectrometry. A flow tube ion source produces Au+ primarily in its 1S0 (5d10) ...
The kinetic energy dependences of the reactions of Fen + (n=2 - 15) with CD4 are studied in a guided ion beam tandem mass spectrometer over the energy range of 0-10 eV. All reactions exhibit thresholds and two main products, FenD+ and FenCD2+, are formed.
Metal clusters; Iron ions; Bond energies; Dehydrogenation; Endothermic reactions; Transition metal ions
Protein tyrosine phosphorylation has been implicated in normal and pathological functions, such as cell proliferation, migration and differentiation. Recently, some studies have shown that Src family kinases (SFKs) were involved in neurological disorders and neuropathic pain states in which microgli...
Talin is a high molecular weight protein localized at adhesion plaques in fibroblasts. It binds vinculin and integrin and appears to participate in generating a transmembrane connection between the extracellular matrix and the cytoskeleton.
We propose a new design for inspection and reverse engineering environments. In particular, we investigate the use of discrete event dynamic systems (DEDS) to guide and control the active exploration and sensing of mechanical parts for industrial inspection and reverse engineering. We introduce dyn...
This study's aims are to: 1) determine the prevalence of functional limitations among older adults in Cambodia using activities of daily living (ADLs); 2) compare limitation prevalence with other countries in the region; 3) estimate active life expectancy; 4) examine standard correlates of function...
The emerging field of neuroprosthetics is focused on the development of new therapeutic interventions that will be able to restore some lost neural function by selective electrical stimulation or by harnessing activity recorded from populations of neurons. As more and more patients benefit from thes...
2014-01-01
359
Horch, Kenneth W.; Lawrence, Steve M.; Dhillon, Gurpreet S.
We examined the recording characteristics of two different types of polymer-based longitudinal intrafascicular electrodes (LIFEs) in peripheral nerve: single-stranded (s-polyLIFEs) and multistranded (m-polyLIFEs). Recordings were also made from Pt-Ir wire-based electrodes (PtIrLIFEs) as a control. T...
This report explores the contention that a high-order language specification of a machine (such as an Ada program) can be methodically transformed into a hardware representation of that machine. One series of well-defined steps through which such transformations can take place is presented in this i...
The vision of a system design environment in which both hardware and software components could be designed, tested, and executed was proffered by the late Dr. Elliott Organick1 in 1981. He was impressed by the objectiveness of Ada and the availability of an architecture (the Intel 432) which was sp...
The most widely used method for assaying protein kinase activities involves incorporation of radioactive phosphate into a protein or peptide substrate with subsequent binding or precipitaion of the radiolabeled substrate onto filter paper squares. We have adapted this assay for use with readily avai...
Protein Kinase Activities; Filter Papers; Radioactive Phosphate
ABSTRACT This paper presents two fast least-squares lattice algorithms for adaptive non-linear filters equipped with system models involving nonlinear feedback. Such models can approximate a large class of non-linear systems adequately, and usually with considerable parsimony in the number of coeff...
This paper considers an extended recursive least squares (RLS) adaptive bilinear predictor. It is shown that the extended RLS adaptive bilinear predictor is guaranteed to be stable in the sense that the time average of the squared a-posteriori prediction error signal is bounded whenever the input...
Focuses on epiphenomenalism problems in arguments about evolutionary function of phenomenal consciousness. Implications of cognitive neuropsychology evidence for the structure of phenomenal consciousness; Distinction of different kinds of epiphenominalist arguments; Provision of a developmental basi...
The molecular mechanisms underlying major phenotypic changes that have evolved repeatedly in nature are generally unknown. Pelvic loss in different natural populations of threespine stickleback fish has occurred by regulatory mutations deleting a tissue-specific enhancer of the Pituitary homeobox t...
This paper introduces an adaptive filter structure that requires zero multiplications for its implementations. The primary input signals are quantized using DPCM and the DPCM outputs are processed by the adaptive filter. The sign algorithm. We show that if the parameters are chosen properly, hardwar...
Adaptive filters are commonly used to cancel acoustic feedback in hearing aids. The sound quality of hearing aids deteriorates as the hearing aid gain is increased. This paper presents a method to alter the gain function in digital hearing aids to provide additional amplification and better output ...
Digital hearing aids identify acoustic feedback signals and cancel them continuously in a closed loop with an adaptive filter. This scheme facilitates larger hearing aid gain and improves the output sound quality of hearing aids. However, the output sound quality deteriorates as the hearing aid gai...
This paper describes an adaptive implementation of a high order Discontinuous Galerkin (DG) method for the solution of elastohydrodynamic lubrication (EHL) point contact problems. These problems arise when modelling the thin lubricating film between contacts which are under sufficiently high pressur...
Freeform surface rendering is traditionally performed by approximating the surface with polygons and then rendering the polygons. This approach is extremely common because of the complexity in accurately rendering the surfaces directly. Recently, several papers presented methods to render surfaces ...
Freeform surface rendering is traditionally performed by approximating the surface with polygons and then rendering the polygons This approach is extremely common because of the complexity in accurately rendering the surfaces directly Recently?? several papers presented methods to render surface...
Abstract-This paper presents two fast least squares lattice algorithms for adaptive nonlinear filters equipped with bilinear system models. Bilinear models are attractive for adaptive filtering applications because they can approximate a large class of nonlinear systems adequately, and usually with...
The purpose of this paper is to introduce an adaptive nonlinear digital filtering algorithm which use the sequential regression (SER) method to update the second order Volterra filter coefficients in a recursive way. Conventionally, the SER method has been used to invert large matrices which result ...
Abstract-This paper studies adaptive truncated Volterra filters employing parallel-cascade structures. Parallel-cascade realizations implement higher order Volterra systems a s a parallel connection of multiplicative combinations of lower order truncated Volterra systems. A normalized LMS adaptive f...
This paper describes an adaptive algorithm for selecting perelectrode stimulus intensities and inter-electrode stimulation phasing to achieve desired isometric plantar-flexion forces via asynchronous, intrafascicular multi-electrode stimulation. The algorithm employed a linear model of force product...
This paper introduces two recursive realizations of the phase transform (PHAT) processor for time-delay estimation (TDE), using a simple one-pole low-pass filter and the least-mean-square (LMS) adaptive filter, respectively. It is shown that these adaptive methods are capable of tracking time-varyin...
While linear filter are useful in a large number of applications and relatively simple from conceptual and implementational view points. there are many practical situations that require nonlinear processing of the signals involved. This article explains adaptive nonlinear filters equipped with polyn...
ABSTRACT This paper presents an adaptive maximum likelihood method for estimating the time difference of arrival of a source signal at two spatially separate sensors. It is well-known that the maximum likelihood technique achieves the Cramer-Rao lower bound for time delay estimation error for ce...
Abstract-This correspondence introduces an adaptive realization of the maximum likelihood (ML) processor for time delay estimation (TDE). Also presented is a modified ML processor, which requires less computations but still performs better than the other when implemented in an adaptive way. Widrow'...
ABSTRACT This paper introduces two recursive realizations of the Phase Transforn (PHAT) processor for tine delay estimation (TOE), using a simple one-pole lowpass filter and the least mean square (LMS) adaptive filter, respectively. It is shown that these adaptive methods are very effective in redu...
ABSTRACT A new scheme o,f unsharp masking for image contrast enhancement is presented in this paper. An adaptive algorithm is introduced so that a sharpening action is performed only in locations where the image exhibits significant dynamics. Hence, the amplification of noise in smooth areas i...
Abstract- This paper presents an adaptive Volterra filter that employs a recently developed orthogonalization procedure of Gaussian signals for Volterra system identification. The algorithm is capable of handling arbitrary orders of nonlinearity P as well as arbitrary lengths of memory N for the sys...
Abstract-This paper presents an adaptive Volterra filter that empolys a recently developed orthogonalization procedure of Gaussian signals for Volterra system identification. The algorithm is capable of handling arbitrary orders of nonlinearity P as well as arbitrary lengths of memory N for the syst...
Abstract-This paper presents an adaptive algorithm for preprocessing document images prior to binarization in character recognition problems. Our method is similar in its approach to the blind adaptive equalization of binary communication channels. The adaptive filter utilizes a quadratic system mod...
Redish et al. suggest that their failures-in-decision-making framework for understanding addiction can also contribute to improving our understanding of a variety of psychiatric disorders. In the spirit of reflecting on the significance and scope of their research, I briefly develop the idea that t...
Lightning round presentation for the Western CONTENTdm Users Group Annual Conference, June 2-4, 2010. Gould Auditorium, J. Willard Marriott Library, Salt Lake City, Utah.
Objective Obtaining the ‘when, where and why' of healthy bouts of moderate-to-vigorous physical activity (MVPA) provides insights into natural PA. Design In Salt Lake City, Utah, adults wore accelerometer and Global Positioning System (GPS) loggers for a week in a cross-sectional study to establis...
This letter presents a scattered-field formulation for modeling dispersive media using the finite-difference time-domain (FDTD) method. Specifically, the auxiliary differential equation method is applied to Drude and Lorentz media for a scattered field FDTD model. The present technique can also be a...
Talin is a high molecular weight phosphoprotein that is localized at adhesion plaques. We have found that talin phosphorylation increases 3.0-fold upon exposure of chicken embryo fibroblasts to the tumor-promoting phorbol ester, phorbol 12-myristate 13-acetate.
By adiabatic compression of a two-phase mixture of liquid and solid He3, temperatures below 2.5 mK have been obtained. These are in the range expected for nuclear ordering in solid He3.
Inadvertent adjustments and malfunctions of programmable valves have been reported in cases in which patients have encountered powerful electromagnetic fields such as those involved in magnetic resonance imaging, but the effects of small magnetic fields are not well known. The authors present a ca...
We performed a systematic study of bipolar and unipolar organic diodes based on the p-conjugated polymer, 2-methoxy-5-(20-ethylhexyloxy) (MEH-PPV), using electronic and magneto-transport measurements with magnetic field in the range 0-180mT and admittance spectroscopy in the frequency range 1 Hz<f<1...
For some decades there has been in Canada, as in the United States, recurrent public interest in adoption. At various times this interest has been kindled by professional concern about unauthorized child placement and by the plight of children made homeless by war and other calamities. More recently...
This paper has two purposes. First, to explore what existing adoption legislation may indicate about the meaning and function of adoption practices in North America and Great Britain. Second, to consider some possible policy implications revealed by clearer understanding of the social meaning of exi...
It has been determined that ordering has a profound effect on the bandgap energy of many compound semiconductor alloys. Therefore, ordering must be controlled for devices such as solar cells, light emitting diodes and diode lasers. Since ordering depends on the surface properties during organomet...
Time dependent surface photoabsorption (SPA); Compound semiconductor alloys
Adsorption of lead and ferric iron on quurtz and alumina is presented as a function of pH. Only the hydrolyzed species of these metal ions, FeOHt+ and PbOH', adsorb significantly on each of these minerals. Zeta potentials of quartz were measured as a function of pH in the presence of various additio...