gebhart/patrepeval huggingface dataset:
A TRI-BAND IMPEDANCE TRANSFORMER USING STUBBED COUPLING LINE (2013)

In this paper, a compact tri-band impedance transformer by utilizing stubbed coupling line for matching a load at three arbitrary frequencies is proposed. The transformer is composed of two parts, and each part is constructed from parallel-coupled transmission lines. Two structures with different configurations of the proposed transformer have been given and analyzed. Then, the close-form equations for the transformer parameters are derived analytically, and the corresponding analytical design approach is verified by numerical examples. To certify the validity of design formulas, an impedance transformer is fabricated and measured at 0.9/1.8/3.2 GHz. Good experimental performances at each frequency are obtained, which are in good agreement with the simulated results.
THE EFFICACY OF BCG VACCINATION - A BRIEF REPORT OF THE CHINGLEPUT BCG TRIAL (1980)

Though BCG vaccination has been practised for nearly 60 years, its efficacy has always remained a subject of controversy. The efficacy, in terms of the effect of the vaccine in reducing the incidence of tuberculous disease among the vaccinated has been demonstrated conclusively 1,2 in animals. However, among human subjects the protective effect can only be demonstrated through controlled clinical trials. A large number of such studies have been published from various developed countries of the world though all these studies, especially the earlier ones, cannot be classified as statistically
<i>N-</i> and <i>P-</i>type dopant profiles in distributed Bragg reflector structures and their effect on resistance (1992)

We report the n- and p-type dopant profiles obtained in AlAs/GaAs structures. When structures were doped with Si or C, targeted dopant profiles were achieved. However, when Be was used, significant redistribution of the dopant occurred, which resulted in an accumulation of Be on the GaAs side of the heterointerfaces, and a maximum incorporation of Be of ∼5×10−17 cm−3 in the AlAs layers. Similar results were obtained for Be dopant profiles in AlGaAs/AlAs quarter-wave distributed Bragg reflectors (DBR). Be segregation and diffusion during growth resulted in a high electrical resistance in these DBR structures. The resistance was significantly reduced when the structure was doped with C.
Resistive Transition Metal Oxide Memory (2015)

A process is created at the Rochester Institute of Technology Semiconductor & Microsystems Fabrication Laboratory (SMFL) to create crossbar structures. These structures can be created out of a variety of materials via different patterning methods, and can be used to investigate potential memristive behavior of many different materials. Using the crossbar structure, resistive switching of an Al/TiOx/Al structure is observed.
Spiral interferogram analysis (2006)

Interference microscopy using spatial Fourier filtering with a vortex phase element leads to interference fringes that are spirals rather than closed rings. Depressions and elevations in the optical thickness of the sample can be distinguished immediately by the sense of rotation of the spirals. This property allows an unambiguous reconstruction of the object's phase profile from one single interferogram. We investigate the theoretical background of "spiral interferometry" and suggest various demodulation techniques based on the processing of one single interferogram or multiple interferograms.
Survival and Function of Bioengineered Cardiac Grafts (1999)

Introduction —Patients with congenital heart disease frequently require graft material for repair of cardiac defects. However, currently available grafts lack growth potential and are noncontractile and thrombogenic. We have developed a viable cardiac graft that contracts spontaneously in tissue culture by seeding cells derived from fetal rat ventricular muscle into a biodegradable material. We report our investigations of the in vitro and in vivo survival and function of this bioengineered cardiac graft. Methods and Results —A cardiomyocyte-enriched cell inoculum derived from fetal rat ventricular muscle was seeded into a piece of Gelfoam (Upjohn, Ontario, Canada), a biodegradable gelatin mesh, to form the graft. For in vitro studies, growth patterns of the cells within the graft were evaluated by constructing growth curves and by histologic examination; in in vivo studies, the graft was cultured for 7 days and then implanted either into the subcutaneous tissue of adult rat legs or onto myocardial scar tissue in a cryoinjured rat heart. Five weeks later, the graft was studied histologically. The inoculated cells attached to the gelatin mesh and grew in 3 dimensions in tissue culture, forming a beating cardiac graft. In both the subcutaneous tissue and the myocardial scar, blood vessels grew into the graft from the surrounding tissue. The graft implanted into the subcutaneous tissue contracted regularly and spontaneously. When implanted onto myocardial scar tissue, the cells within the graft survived and formed junctions with the recipient heart cells. Conclusions —Fetal rat ventricular cells can grow 3-dimensionally in a gelatin mesh. The cells in the graft formed cardiac tissue and survived and contracted spontaneously both in tissue culture and after subcutaneous implantation. Future versions of this bioengineered cardiac graft may eventually be used to repair cardiac defects.
Social Network Analysis Based on Structure (2012)

The development of Internet and the popularity of social sites provide the large-scale experimental platform for researching the statistical properties and structure evolution of social networks.This paper mainly uses DBLP and Facebook datasets and built the social networks.We classify these networks by using role-to-role connectivity profiles and found that they belong to stringy-periphery class.We confirm that they have these properties,such as free-scale distribution,densification law and shrinking diameter.We discover there is a small core with high connectivity in social networks,and observed that many middle-scale communities are composed of stars.We research the evolution of community structure based on event framework and revealed that the community merge depends largely on the clustering coefficient of the graph composed of nodes which are directly connected between communities and the community split is related to its clustering coefficient.
Colour histogram equalisation of multichannel images (2005)

Histogram equalisation works well on single-channel images; however, the technique used is ineffective on multiple channels because there are an infinite number of ways to perform the equalisation. A technique is developed that will work on images with any number of channels, and the inadequacy of a direct extension of histogram equalisation to multiple dimensions is shown. A logarithmic metric is developed to express how well the available histogram volume is utilised and how well equalisation is working. Results of using the technique and using it in reverse, i.e. to reduce the histogram utilisation, are shown. Extensions of the technique are used to measure the difference between and conform one multichannel histogram to another, and uses of these techniques are discussed.
A review of the genus Leoptopteromyia in the Western Hemisphere (Diptera: Leptogastridae) (1971)

(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Identification of Epididymis‐Specific Antigens Using Neonatal Tolerization (2000)

PROBLEM: Conventional immunization using whole sperm containing multiple antigens as the immunogen followed by hybridoma technology usually gives antibodies to antigens invariably of testicular origin, probably because of the strong immunogenic nature of these antigens. Therefore, an alternate approach of neonatal tolerization or subtractive immunization has been utilized to raise antibodies specific to epididymis by suppressing immune response to testicular antigens. METHOD OF STUDY: Neonatal mice were tolerized with testicular sperm proteins on days 0 and 5. These animals were then immunized with epididymal sperm proteins on day 21, followed by two boosters at biweekly intervals. Sera from these mice were used to localize epididymis‐specific antigens. RESULTS: Sera from mice that were tolerized to testicular sperm proteins and later immunized with epididymal sperm proteins reacted only with epididymal proteins. CONCLUSION: The results of this study demonstrate that neonatal tolerization with testicular sperm proteins, followed by immunization with epididymal sperm proteins, enhances the production of antibodies to proteins exclusively of epididymal origin.
Comparative clinical and electrophysiologic effects of adenosine triphosphate and verapamil on paroxysmal reciprocating junctional tachycardia. (1988)

The efficacy, electrophysiologic effects, and side effects of adenosine triphosphate (ATP) and verapamil in the short-term management of paroxysmal reciprocating junctional tachycardia (PRJT) were compared in 20 patients. All patients had inducible sustained PRJT during control electrophysiologic study. Fourteen patients had PRJT involving a retrograde accessory pathway, and six patients had atrioventricular (AV) nodal reentrant tachycardia ("slow-fast" type). ATP, which has a very short half-life, was first administered (10 mg iv over 1 sec) during sustained PRJT. If PRJT did not terminate within 2 min, a bolus of 20 mg ATP was given. Verapamil (5 mg iv over 15 sec) was subsequently administered during sustained PRJT, and if the latter did not terminate within 3 min another bolus of 5 mg verapamil was given. The cycle lengths of PRJT before administration of 10 or 20 mg ATP and 5 mg verapamil were similar. The 10 mg dose of ATP terminated PRJT in 17 of the 20 patients, and 20 mg ATP was required to terminate PRJT in the three remaining patients. The 5 mg dose of verapamil terminated PRJT in 15 patients, whereas an additional bolus of 5 mg terminated PRJT in one of the remaining five patients. The overall efficacy of ATP (20/20, 100%) was significantly greater than that of verapamil (16/20, 80%) (p less than .05); however, there was no significant difference between the conversion rate of PRJT after administration of 10 mg ATP (17/20) and 5 mg verapamil (15/20). ATP terminated PRJT more quickly than verapamil (mean 24 sec vs mean 51 sec; p less than .01). Termination of PRJT by either ATP or verapamil was mainly related to a block in the AV node in patients with accessory pathways and to a block in the antegrade slow pathway in patients with AV nodal reentry. Cycle length alternans before termination of tachycardia was observed more frequently after verapamil than after ATP (7/16 vs 1/20; p less than .01). The total incidence of transient second-degree AV nodal block and various cardiac supraventricular and ventricular arrhythmias was higher after termination of PRJT by ATP than after verapamil (17/20 vs 5/16; p less than .001). A higher incidence of transient but frequently uncomfortable noncardiac side effects was observed after ATP. We conclude that ATP (10 to 20 mg) is more effective and more rapid than verapamil (5 or 5 + 5 mg) in terminating PRJT but results in a higher incidence of cardiac and noncardiac side effects.(ABSTRACT TRUNCATED AT 400 WORDS)
A SECURE JAILING SYSTEM FOR CONFINING UNTRUSTED APPLICATIONS (2007)

System call interception based jailing is a well-known method for confining (sandboxing) untrusted binary applications. Existing systems that are implemented using standard UNIX debugging mechanisms are rendered insecure by several race conditions. This paper gives an overview of the most important threats to jailing systems, and presents novel mechanisms for implementing jailing securely on standard UNIX systems. We implemented these solutions on Linux, and achieve competitive performance compared to existing jailing systems. Performance results are provided for this implementation, and for an implementation that uses a special-purpose extension to the Linux kernel designed to improve performance of the jailing system.
Synthesis, Structure, and Reactivity of Ruthenium Carboxylato and 2-Oxocarboxylato Complexes Bearing the Bis(3,5-dimethylpyrazol-1-yl)acetato Ligand (2008)

A series of ruthenium(II) acetonitrile, pyridine (py), carbonyl, SO2, and nitrosyl complexes [Ru(bdmpza)(O2CR)(L)(PPh3)] (L = NCMe, py, CO, SO2) and [Ru(bdmpza)(O2CR)(L)(PPh3)]BF4 (L = NO) containing the bis(3,5-dimethylpyrazol-1-yl)acetato (bdmpza) ligand, a N,N,O heteroscorpionate ligand, have been prepared. Starting from ruthenium chlorido, carboxylato, or 2-oxocarboxylato complexes, a variety of acetonitrile complexes [Ru(bdmpza)Cl(NCMe)(PPh3)] (4) and [Ru(bdmpza)(O2CR)(NCMe)(PPh3)] (R = Me (5a), R = Ph (5b)), as well as the pyridine complexes [Ru(bdmpza)Cl(PPh3)(py)] (6) and [Ru(bdmpza)(O2CR)(PPh3)(py)] (R = Me (7a), R = Ph (7b), R = (CO)Me (8a), R = (CO)Et (8b), R = (CO)Ph) (8c)), have been synthesized. Treatment of various carboxylato complexes [Ru(bdmpza)(O2CR)(PPh3)2] (R = Me (2a), Ph (2b)) with CO afforded carbonyl complexes [Ru(bdmpza)(O2CR)(CO)(PPh3)] (9a, 9b). In the same way, the corresponding sulfur dioxide complexes [Ru(bdmpza)(O2CMe)(PPh3)(SO2)] (10a) and [Ru(bdmpza)(O2CPh)(PPh3)(SO2)] (10b) were formed in a reaction of the carboxylato complexes with gaseous SO2. None of the 2-oxocarboxylato complexes [Ru(bdmpza)(O2C(CO)R)(PPh3)2] (R = Me (3a), Et (3b), Ph (3c)) showed any reactivity toward CO or SO2, whereas the nitrosyl complex cations [Ru(bdmpza)(O2CMe)(NO)(PPh3)](+) (11) and [Ru(bdmpza)(O2C(CO)Ph)(NO)(PPh3)](+) (12) were formed in a reaction of the acetato 2a or the benzoylformato complex 3c with an excess of nitric oxide. Similar cationic carboxylato nitrosyl complexes [Ru(bdmpza)(O2CR)(NO)(PPh3)]BF4 (R = Me (13a), R = Ph (13b)) and 2-oxocarboxylato nitrosyl complexes [Ru(bdmpza)(O2C(CO)R)(NO)(PPh3)]BF4 (R = Me (14a), R = Et (14b), R = Ph (14c)) are also accessible via a reaction with NO[BF4]. X-ray crystal structures of the chlorido acetonitrile complex [Ru(bdmpza)Cl(NCMe)(PPh3)] (4), the pyridine complexes [Ru(bdmpza)(O2CMe)(PPh3)(py)] (7a) and [Ru(bdmpza)(O2CC(O)Et)(PPh3)(py)] (8b), the carbonyl complex [Ru(bdmpza)(O2CPh)(CO)(PPh3)] (9b), the sulfur dioxide complex [Ru(bdmpza)(O2CPh)(PPh3)(SO2)] (10b), as well as the nitrosyl complex [Ru(bdmpza)(O2C(CO)Me)(NO)(PPh3)]BF4 (14a), are reported. The molecular structure of the sulfur dioxide complex [Ru(bdmpza)(O2CPh)(PPh3)(SO2)] (10b) revealed a rather unusual intramolecular SO2-O2CPh Lewis acid-base adduct.
Assessment of immunochemical methods for determining low concentrations of albumin in urine. (1986)

Four immunochemical methods (radioimmunoassay, RIA; radial immunodiffusion, RID; immunoturbidimetry, IT; enzyme-linked immunosorbent assay, ELISA) for measuring urinary albumin at low concentrations were assessed for their assay characteristics and practicability. Precision and accuracy were comparable between the methods when studied individually. We made a method comparison, with RIA as reference, using urine samples from diabetic patients with albumin concentrations ranging from 1 to 120 mg/L. There was no significant systematic difference between RID and RIA, but IT and ELISA gave consistently lower values than RIA, the mean differences being 1.8 (p less than 0.01) and 9.7 mg/L (p less than 0.001), respectively. Random error, compared with that for RIA, was in increasing order: RID (residual SD = 3.8 mg/L); IT (4.3 mg/L); ELISA (7.3 mg/L). The difference between the methods increased with the albumin concentration. Operational cost was highest with IT, lowest with RIA. Capital cost was highest with RIA and lowest with RID, which required most technical skill. ELISA had intermediate overall costs.
The luminous image (1988)

Book Review| February 01 1988 The luminous image Transparencies by Jeff Wall with an interview by Els Barents Rizzoli International Publications, lnc./112pp./$25.00 (sb) David Miller David Miller David Miller is a photographer in Chicago. Search for other works by this author on: This Site PubMed Google Scholar Afterimage (1988) 15 (7): 20–21. https://doi.org/10.1525/aft.1988.15.7.20 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation David Miller; The luminous image. Afterimage 1 February 1988; 15 (7): 20–21. doi: https://doi.org/10.1525/aft.1988.15.7.20 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentAfterimage Search This content is only available via PDF. © 1988 by The Regents of the University of California1988 Article PDF first page preview Close Modal You do not currently have access to this content.
Story boundary detection in large broadcast news video archives (2004)

The segmentation of news video into story units is an important step towards effective processing and management of large news video archives. In the story segmentation task in TRECVID 2003, a wide variety of techniques were employed by many research groups to segment over 120-hour of news video. The techniques employed range from simple anchor person detector to soisticated machine learning models based on HMM and Maximum Entropy (ME) approaches. The general results indicate that the judicious use of multi-modality features coupled with rigorous machine learning models could produce effective solutions. This paper presents the algorithms and experience learned in TRECVID evaluations. It also points the way towards the development of scalable technology to process large news video corpuses.
Multiple pathogenic and benign genomic rearrangements occur at a 35 kb duplication involving the NEMO and LAGE2 genes (2001)

The X-linked dominant and male-lethal disorder incontinentia pigmenti (IP) is caused by mutations in a gene called NEMO (IKK-gamma). We recently reported the structure of NEMO and demonstrated that most IP patients carry an identical deletion that arises due to misalignment between repeats. Affected male abortuses with the IP deletion had provided clues that a second, incomplete copy of NEMO was present in the genome. We have now identified clones containing this truncated copy (Delta NEMO) and incorporated them into a previously constructed physical contig in distal Xq28. Delta NEMO maps 22 kb distal to NEMO and only contains exons 3-10, confirming our proposed model. A sequence of 26 kb 3' of the NEMO coding sequence is also present in the same position relative to the Delta NEMO locus, bringing the total length of the duplication to 35.5 kb. The LAGE2 gene is also located within this duplicated region, and a similar but unique LAGE1 gene is located just distal to the duplicated loci. Mapping and sequence information indicated that the duplicated regions are in opposite orientation. Analysis of the great apes suggested that the NEMO/LAGE2 duplication occurred after divergence of the lineage leading to present day humans, chimpanzees and gorillas, approximately 10-15 million years ago. Intriguingly, despite this substantial evolutionary history, only 22 single nucleotide differences exist between the two copies over the entire 35.5 kb, making the duplications >99% identical. This high sequence identity and the inverted orientations of the two copies, along with duplications of smaller internal sections within each copy, predispose this region to various genomic alterations. We detected four rearrangements that involved NEMO, Delta NEMO or LAGE1 and LAGE2. The high sequence similarity between the two NEMO/LAGE2 copies may be due to frequent gene conversion, as we have detected evidence of sequence transfer between them. Together, these data describe an unusual and complex genomic region that is susceptible to various types of pathogenic and polymorphic rearrangements, including the recurrent lethal deletion associated with IP.
Pulsatile Insulin Delivery has Greater Metabolic Effects than Continuous Hormone Administration in Man: Importance of Pulse Frequency (1991)

The aim of this study was to see if the greater effect of insulin on hepatic glucose output when insulin is given using 13-min pulses in man remains when the same amount of insulin is delivered using 26-min pulses. The study was performed on nine male healthy volunteers submitted to a 325 min glucose-controlled glucose iv infusion using the Biostator. The endogenous secretion of pancreatic hormones was inhibited by somatostatin. Three experiments were performed in each subject on different days and in random order. In all cases glucagon was replaced (58 ng min-1). The amounts of insulin infused were identical in all instances and were 0.2 mU kg-1 min-1 (continuous), 1.3 mU kg-1 min-1, 2 min on and 11 min off (13-min pulses) or 2.6 mU kg-1 min-1, 2 min on and 24 min off (26-min pulses). Blood glucose levels and glucose infusion rate were monitored continuously by the Biostator, and classic methodology using D-[3-3H] glucose infusion allowed to study glucose turnover. When compared with continuous insulin, 13-min insulin pulses induced a significantly greater inhibition of endogenous glucose production. This effect disappeared when insulin was delivered in 26-min pulses. We conclude that, in man, an adequate pulse frequency is required to allow the appearance of the greater inhibition of pulsatile insulin on endogenous glucose production.
Interpenetrating polymer networks based on castor oil polyurethane/cellulose derivatives and polyacrylic acid (2009)

Castor oil, 2,4-tolylene diisocyanate (2,4 TDI), cellulose acetate, and hydroxiethyl cell u- lose, based polyurethane (PU) - polyacrylic acid (PAA) sequential interpenetrating polymer networks (IPN's) were synthesized. PU's were prepared by reaction of hydroxyl groups from castor oil, and ce l- lulose acetate or hydroxiethyl cellulose with 2,4 T DI, using dibutyl tin dilaurate (DBDTL) as catalyst. PU's were swollen in acrylic acid monomer solution and subsequently polymerized by radical polymeri- zation initiated with 4,4-azobis(4-cyanovaleric aci d) (ACVA), and N,N '-methylenebis acrylamide (NNMBA) as crosslinking agent. Series of three PU/PAA ratios (75/25, 50/50, 25/75) were prepared. Viscoelastic properties were studied by means of dynamic mechanical analysis (DMA), showing a maximum modulus for IPN with 25% PAA content. Tan δ curve showed two main peaks, and γ γ γ γ relaxa- tion which is due to lateral chains of PU, suggesti ng phase separation. The existence of two T g in each IPN was also confirmed by differential scanning calorimeter DSC). Morphology of samples was ob- served using a scanning electron microscope (SEM), which revealed different fracture surfaces between the compatible and incompatible PU/PAA ratios studied. Fractures were decreasing to turn into roughness surfaces when the PAA was increasing within the IPN's.