gebhart/patrepeval huggingface dataset:
Implant therapy involving maxillary sinus lift in periodontally compromised patients (1997)

This study reports the results of implant therapy involving a sinus membrane lift as well as conventional implant therapy in 24 periodontally compromised patients who were treated during the period between June 1990 and May 1995. Patients were included on the basis of being in need of at least 2 implants, 1 of which was to be placed in the maxillary sinus region, and at least 3 mm bone height was required in the sinus region. Following fenestration of the lateral sinus wall and lifting of the sinus membrane sinus implants were inserted as described for conventional implants. Annual follow-up visits included recording of plaque, probing pocket depth and bleeding on probing, and recording of the radiographic distance from the implant shoulder to the alveolar crest in mm. The Astra, Astra sinus, ITI, and ITI sinus were observed for an average of 30.8, 29.9, 29.4 and 25.3 months, respectively. Of the 80 implants inserted 1 Astra and 2 ITI had failed at 11-12 months and 1 ITI had failed at 42 months. The Kaplan-Meier estimate of the proportion of non-failed implants at 36 months were 100%, 95%, 91%, and 86% for the Astra, Astra sinus, ITI, and ITI sinus implants, respectively. Of the Astra, Astra sinus, and ITI implants, 71-82% remained free from bone-loss > or = 1.5 mm at 36 months, whereas this was the case for only 29% of the ITI sinus implants. About 80-90% of the implants remained free from plaque; 65-86% remained free from bleeding; and 44-80% remained free from pockets > or = 4 mm. These results indicate that the sinus lift technique can be used successfully in periodontally compromised patients.
Autoantibody against fibroblasts in renal transplant recipients: analysis by 51Cr-release assays. (1981)

In testing for donor-specific alloantibody in renal transplantation we discovered that sera of many recipients lysed their own fibroblasts in complement-dependent cytotoxicity. The incidence of this autoreactivity before and during the first month post-transplant was 15 and 10% respectively, but rose to 48% after 2 months. There was a significant association between autoantibody formation and the presence of donor-specific alloantibody, but no association between autoantibody and graft survival. Autoantibody reactive with fibroblasts was three times more frequent than lymphocytotoxic autoantibody, and showed no association with the presence of such antibody, indicating that these autoantibodies were directed against different antigens. Reduction with 2-mercaptoethanol indicated that much of the autoreactivity was IgM. By absorption tests the autoantigen was shown to be expressed extensively on fibroblasts, but not on lymphocytes, platelets or red cells. Susceptibility to lysis by the autoantibody varied from day to day in the fibroblasts of a particular individual, and also varied from individual to individual. These results are of interest because they indicate that autoantibody formation in human renal allografts may result from chronic allogeneic stimulation, and that the antibody may be detecting a previously unknown fibroblast antigen.
Genetic relationships among strains of avian Escherichia coli associated with swollen-head syndrome (1990)

Genetic diversity among 22 Escherichia coli strains isolated from chickens with swollen-head syndrome (SHS), an acute respiratory disease of domestic poultry, and 93 strains isolated from birds with colibacillosis was assessed on the basis of allelic variation at 20 enzyme-encoding loci detected by multilocus enzyme electrophoresis. SHS isolates from Spain and Canada were polymorphic at 14 loci and were classified into 19 multilocus genotypes, defining clones that differed on average at 34% of the loci. In most cases, SHS isolates of different clonal genotypes were distinct in O:H serotype and expressed different fimbrial antigens. Comparisons with 93 isolates obtained from birds with colibacillosis revealed enzyme polymorphisms at 17 of 20 loci, with an average of 3.5 alleles per locus. In the total sample, 56 clonal genotypes were distinguished, with 27 (23%) of the isolates belonging to one of three common clones. Both SHS and colibacillosis isolates were genetically diverse, with an average single-locus diversity of 0.36, indicating that a wide variety of naturally occurring bacterial clones is associated with these acute avian infections. Six previously defined groups of clones identified in diseased birds from the United States were represented in isolates from Spain, indicating that similar clones occur in widely separated geographic areas. In addition, one group of SHS isolates was closely related to a recognized widespread clone complex incriminated in human septicemia and meningitis. The results suggest that certain strains implicated in SHS infections belong to a clone complex whose members have special attributes that promote involvement in invasive diseases in humans and animals.
Phase Stability of LiAlO2 in Molten Carbonate (1997)

In current molten carbonate fuel cells (MCFCs), submicron powder is used as the electrolyte‐retaining material because of its stability at high temperatures. However, it is recognized that transforms to mainly during MCFC operation. This suggests that behavior in molten carbonate is different from that in air. To confirm the stable allotropic phase under actual MCFC conditions, we investigated the phase transformation of in the presence of molten carbonate. It was found that essentially the α‐phase is stable in a low‐temperature and high‐ environment, whereas the γ‐phase is stable in a high‐temperature and low‐ environment. In addition, there exists relative particle size dependence of the allotropic transformation when α‐ and powders coexist. Further, we confirmed that the phase composition and structure of a matrix which consists of the powder is stable up to 7550 h at 700°C when the powder particle diameter is 0.3 μm. These results suggest that powder with 0.3 μm diam is preferred over conventional powder as an electrolyte‐retaining material in MCFCs.
Characterization of silane-modified ZrO2 powder surfaces (1997)

Polymerizable organic silane molecules such as 3-(trimethoxysilyl)propylmethacrylate (γ-MPS) have been grafted onto the surface of ZrO2 powders, via hydroxyl groups, to obtain hybrid ‘macromonomers’. A combination of x-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy and 29Si nuclear magnetic resonance (NMR) spectroscopy have been employed to study the interaction between organic silane molecules and the surface of the ZrO2 powders. The core-level XPS regions, Zr3d, O1s, C1s and Si2p, have been studied to determine the nature of chemical bonding between the organic grafted monomer and inorganic phase and correlated with NMR results. Based upon the results obtained, it is proposed that grafting results in γ-MPS bonded to the ZrO2 powder surface via ZrOSi bonds accompanied by interlinkage of γ-MPS molecules through SiOSi bonding. © 1997 John Wiley & Sons, Ltd.
Acute Fibrinous and Organizing Pneumonia and Undifferentiated Connective Tissue Disease: A Case Report (2012)

Acute fibrinous and organizing pneumonia (AFOP), recently described, is a histologic pattern characterized by the presence of fibrin "balls" within alveolar spaces. The term undifferentiated connective tissue disease (UCTD) is used to identify autoimmune systemic diseases that do not fulfill the criteria to be classified as a definitive connective tissue disease. The AFOP has never been reported in association with UCTD. The present reported case is a 39-year-old Caucasian, female with dry cough and progressive dyspnea. Eight months later, she was diagnosed with "organizing pneumonia" based on clinical history and radiologic images. She manifested Raynaud's Phenomenon, sicca syndrome, boot and gloves neuropathic pain, and previous hypothyroidism. Antinuclear antibody, rheumatoid factor, and specific autoantibodies were negative. Salivary gland biopsy and electroneuromyiography were normal. The capillaroscopy showed a "scleroderma" pattern with capillary deletion and ectasia. She experienced clinical and radiologic worsening. Despite being submitted to cyclophosphamide pulse, she developed hemorrhage and then died. Thoracotomy pulmonary specimen showed histological pattern of AFOP. This paper shows a rare association of AFOP with UCTD.
Amnesia and the hippocampus (2006)

Despite considerable progress, some issues remain unresolved. The available evidence favours the view, however, that the hippocampus, in conjunction with other cortical areas, is critical for the retrieval of remote episodic memories and for both recollection and familiarity anterograde memory processes. There are as yet no effective pharmacological treatments for medial temporal lobe amnesia, but various rehabilitative techniques may be useful.
K. Büchner, Tacitus und Ausklang (Studien zur römischen Literatur, Band IV). Wiesbaden: F. Steiner, 1964. Pp. VIII + 165. DM. 18 (unbound), DM. 23 (bound) (for subscribers to the whole series, DM. 14.40 (unbound), DM. 19.40 (bound)). (1965)

K. Büchner, Tacitus und Ausklang (Studien zur römischen Literatur, Band IV). Wiesbaden: F. Steiner, 1964. Pp. VIII + 165. DM. 18 (unbound), DM. 23 (bound) (for subscribers to the whole series, DM. 14.40 (unbound), DM. 19.40 (bound)). - Volume 55
Lack of correlation between mRNA expression and enzymatic activity of the aspartate aminotransferase isoenzymes in various tissues of the rat (1995)

Little is known about control of expression of basal levels of the aspartate aminotransferases which are ubiquitous 'house keeping' enzymes in vertebrates. We have measured both mRNA and activity levels for both isoenzymes in various rat tissues as a function of age. Patterns of mRNA expression for the two isoenzymes were similar in a particular tissue about differed widely between tissues. Surprisingly, there was no simple correlation between mRNA levels and specific activities of the enzyme products. We conclude that translation for mRNA for these two isoenzymes is subject to tissue-specific, and in some cases age-related, regulation.
Infrared Spectroscopy (1960)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfrared SpectroscopyRobert C. GoreCite this: Anal. Chem. 1960, 32, 5, 238–240Publication Date (Print):April 1, 1960Publication History Published online1 May 2002Published inissue 1 April 1960https://pubs.acs.org/doi/10.1021/ac60161a016https://doi.org/10.1021/ac60161a016research-articleACS PublicationsRequest reuse permissionsArticle Views94Altmetric-Citations1LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Fluoro-olefins. Part IV. Synthesis of polyfluoroalkanes containing functional groups from chlorotrifluoroethylene, and the short-chain polymerisation of olefins (1955)

R. N. Haszeldine, J. Chem. Soc., 1955, 4291 DOI: 10.1039/JR9550004291
An effective compensation method for the mutual coupling effect in phased arrays for magnetic resonance imaging (2005)

An effective compensation method to compensate for the mutual coupling effect in magnetic resonance imaging (MRI) phased arrays is introduced. This method uses the knowledge of the position of the signal source in MRI, i.e., the active slice, to define a new mutual impedance that accurately quantifies the coupled voltages and enables them to be removed from the terminal voltages almost completely. Numerical results using the method of moments show that the percentage errors in the compensated voltage are at least on the order of 10/sup -5/% and the isolations between two coils are more than 120 dB even at a low-field case of 0.5 T (f/sub 0/=21.3 MHz). This method can be implemented by either software or hardware.
A mutation that prevents glucosylation of the lipid-linked oligosaccharide precursor leads to underglycosylation of secreted yeast invertase. (1986)

A mutant of Saccharomyces cerevisiae with the genotype mnn1 mnn2 mnn9 gls1 synthesizes mannoproteins with oligosaccharides having the composition Glc3Man10Glc-NAc2- owing to the mnn9 defect, which prevents synthesis of the outer chain, the mnn1 defect, which prevents branching of the core, and the gls1 mutation, which prevents deglucosylation of the resultant glycoprotein as a consequence of a defective glucosidase-I [Tsai, P.-K., Ballou, L., Esmon, B., Schekman, R. & Ballou, C. E. (1984) Proc. Natl. Acad. Sci. USA 81, 6340-6343]. (The mnn2 defect is not expressed in presence of the mnn9 mutation.) This strain spontaneously forms new colonies in which gls1 is suppressed owing to a defect in synthesis of dolichol phosphoglucose, the glucosylation substrate. The new mutant, designated mnn1 mnn2 mnn9 gls1 dpg1, synthesizes and secretes invertase (EC 3.2.1.26) that has a higher mobility on native gel electrophoresis than that made by the parent strain, the consequence of a reduction in both the size and the number of carbohydrate chains. The mannoprotein chains have the mnn1 mnn9 structure (Man10Glc-NAc2-), and the invertase is resolved by gel electrophoresis in sodium dodecyl sulfate into two major and two minor bands that represent homologs with about 4-7 carbohydrate units, in contrast to about 8-11 chains in the parent strain. Thus, the inability to glucosylate the lipid-linked precursor reduces the efficiency of glycosylation of the protein chains. The genetic defect is in synthesis of the glucose donor dolichol phosphoglucose, but the mutation is nonallelic with the reported alg5-1 mutation, which has a similar phenotype [Runge, K. W., Huffaker, T. C. & Robbins, P. W. (1984) J. Biol. Chem. 259, 412-417].
Cochrane Public Health Review Group update: incorporating research generated outside of the health sector (2008)

Strengthening our focus on the social determinants of health 2008 has been a busy and exciting inaugural year for the Cochrane Public Health Review Group (PHRG). There are now three titles registered ( protocol in-development) with this editorial group and several more close to registration. A need for collaborative action to ensure the production of systematic reviews of most relevance to decision-makers, researchers and communities has continued to be the catalyst for our work. In 2009, the work programme of the Cochrane PHRG will be guided in particular by the recommendations emerging from the World Health Organization's Commission on the Social Determinants of Health. The three principles of action as described in the Commission's final report include: Improve daily living conditions Tackle the inequitable distribution of power, money and resources Measure and understand the problem and assess the impact of action. 1
Humidity Swelling/Deswelling Hysteresis in a Polyelectrolyte Multilayer Film (2011)

We demonstrate that polyelectrolyte multilayer film (PEM) systems constructed using layer-by-layer (LbL) assembly of poly(allylamine hydrochloride) (PAH) and poly(acrylic acid) (PAA) exhibit significant swelling/deswelling hysteresis in humid air environments, swelling less upon absorption of water from a dry state than upon deswelling from a hydrated (≈100% RH) state. The hysteretic swelling, measured utilizing in-situ reflectometry, is reproducible over multiple absorption−desorption cycles and is essentially absent in spin-coated films of either pure polyelectrolyte. Kinetic swelling measurements support the notion that the structural response to humidity in PEMs can occur over two distinct regimes: an initial swelling response on the order of seconds to minutes as water enters the film and a longer time scale structural relaxation on the order of hours to days. While the structural relaxation appears to influence the magnitude of the hysteresis effect, it cannot account for it entirely; rather, upon long-term storage at an intermediate humidity, the internal structure of a PEM retains some “memory” of its humidity exposure history, similar to some biologically derived textile and food materials. We propose that the mechanism of hysteresis in PEM systems is tied to a combination of internal molecular restructuring in response to ambient moisture and the frustration of structural relaxations by the internal electrostatic cross-link network within the film. Our results suggest that factors such as the drying technique and the manner in which films are equilibrated to ambient humidity may subsequently affect PEM properties as well as the performance of these systems in applications such as environmental sensing.
Sequential nucleic acid and recombinant adenovirus vaccination induces host‐protective immune responses against <i>Taenia ovis</i> infection in sheep (1997)

Sheep were immunized with a protective recombinant antigen (45W) from the cestode parasite Taenia ovis using three different vaccine delivery systems, either alone or in different combinations. The DNA encoding 45W was cloned into the expression plasmid pcDNA 3 and an ovine adenovirus to create nucleic acid and recombinant viral vector vaccines, respectively. Sheep received two vaccinations with various combinations of these two delivery systems and/or purified recombinant 45W protein in a conventional vaccine formulation containing Quil A as adjuvant (protein/Quil A vaccine). Sheep receiving two inoculations of either the nucleic acid or the recombinant adenovirus alone, demonstrated only low levels of 45W‐specific antibody. However, immunization with either nucleic acid or recombinant adenovirus primed animals to mount an enhanced immune response after a subsequent vaccination with the protein/Quil A vaccine. The most striking result was that sheep initially immunized with the nucleic acid vaccine and boosted with the recombinant adenovirus, mounted IgG 1 responses >65 fold higher than those of sheep receiving either vaccine alone. The level of antibody in these sheep was commensurate with that observed in animals vaccinated twice with the protein/Quil A adjuvanted vaccine. In both cases, host‐protection from experimental challenge infection with T. ovis was obtained.
Leakage Current Response Mechanism of Insulator String With Ambient Humidity on Days Without Rain (2019)

The leakage current, which is influenced by the operating voltage, the surface contamination, and environmental variables, is one of the most basic online monitoring parameters for the surface contamination status of insulators. However, the impact of temperature and humidity on leakage current have not been expressed concisely nor distinguished according to sunny and rainy weather. In this paper, based on leakage current online monitoring data, the time-domain waveforms of leakage current of an insulator string in Shenzhen, China, were compared with those of the ambient temperature and humidity. Results indicate that the leakage current presents a saddle-shaped curve on days without rain, and that there is a remarkable positive correlation between leakage current and humidity as well as a negative correlation between leakage current and temperature. In a short period (several days) without rain, as long as the relative humidity keeps constant, the leakage current would vary insignificantly, whereas it may vary in a wide range at the same temperature. Moreover, the functional relation mathematical model I = a * e <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">b*RH</sup> between the first harmonic component of leakage current and the relative humidity is presented, inferring that the insulator string leakage current depends mainly on the ambient relative humidity in a day without rain.
Scandium and Copper Triflate-Catalysed Acylaminoalkylation and Friedel-Crafts Alkylation Reactions (1996)

Acylaminoalkylation cyclisation reactions and some Friedel-Crafts alkylation reactions can be carried out using scandium or copper triflate as the Lewis acid catalyst: scandium triflate can be recycled with no loss of catalytic activity.
Dynamic Modeling and Power Loss Analysis of High-Frequency Power Switches Based on GaN CAVET (2016)

The focus of this paper is to understand the impact of the material properties of GaN, exploited using a vertical device, in power switching by estimating switching loss. The study was performed with a cascoded current aperture vertical electron transistor (CAVET). The normally OFF device was simulated and analyzed using a Silvaco ATLAS 2-D drift diffusion model integrated to SPICE-based circuit simulator. Besides evaluating the performance space and, hence, potential application space for GaN CAVETs, this paper presents significant accomplishment in establishing a device to circuit model, thereby, offering a reliable method of evaluating GaN-based power transistors. The accuracy of the model was established through the excellent agreement of simulated data with the data sheet specs of a commercial cascoded GaN high electron mobility transistor. The model was successfully applied to compare SiC MOSFETs with GaN CAVETs. A cascoded GaN CAVET has $2\times $ faster switching time, $3\times $ lower switching loss compared with standard commercial SiC MOSFET, owing to the higher electron mobility in GaN. Operating at frequencies of megahertz with low power loss, a GaN CAVET will, therefore, lead to smaller converter size and higher system efficiency.
Tissue Engineering in the Genitourinary System (1997)

In general, genitourinary tissue has traditionally been replaced with autologous tissues harvested from other sites of the body (Atala and Retik, 1994). However, these approaches rarely replace the entire function of the original tissue. Congenital defects occur more often in the genitourinary system than in any other system within the human body. The genitourinary system, composed of the kidneys, ureters, bladder, urethra, and genital organs, is exposed to a variety of possible injury sites as the fetus develops. Some of the congenital abnormalities require early reconstruction with nonurologic tissues. For example, a baby born with bladder exstrophy, a condition wherein the bladder develops outside the abdominal wall, requires prompt surgical intervention and possibly reconstruction of the bladder with nonurologic tissues, such as gastrointestinal segments. Similarly, baby girls born with vaginal maldevelopment, may require reconstruction with intestinal segments or skin (Atala and Hendren, 1994; Hendren and Atala, 1994). Boys born with hypospadias, a condition wherein the urethra does not develop normally, require early creation of a neo-urethra with skin or mucosa from multiple body sites (Atala and Retik, 1996; Retik et al, 1994).