Method of fluxless brazing and diffusion bonding of aluminum containing components

A method of diffusion bonding and fluxless brazing of aluminum containing components is reported. The aluminum surfaces are freed of any aluminum oxide coating and are coated with a polymeric sealer which can be thermally removed leaving essentially no residue. The polymeric sealer is being removed in a substantially oxygen free environment, and the aluminum components are then being brazed or diffusion bonded without the use of a flux to remove oxide coating

Suppression of Argonaute 2 Transcript Levels in Du182A Cells

RNA interference (RNAi) uses double-stranded RNA (dsRNA) molecules to degrade and suppress the transcript level of a complementary mRNA target1. The RNAi pathway is complex and includes many different proteins, like argonautes, in the core machinery. Argonautes are dsRNA binding proteins which help recognize and cleave target mRNA molecules. In our experiments, we attempted to suppress the transcript level of argonaute 2 (Ago2) in a Diabrotica undecimpunctata cell line (Du182A) using dsRNA, with the idea of disrupting the RNAi pathway using an RNAi of RNAi technique. Ago2 transcript levels were suppressed following treatment with dsRNA. Future experiments can now use this technique, with some modification to better understand the RNAi pathway

Un nuevo viaje de Teseo : De la Antigüedad a la Edad Media y al Renacimiento inglés

El presente trabajo propone explorar el modo cómo la literatura inglesa se apropia de la figura del héroe ático por antonomasia, Teseo, prefiriendo a las historias relacionadas con la aventura aquellas que lo muestran como figura garante del orden y de la sabiduría. Proponemos rastrear el modo cómo el héroe es presentado en el "Cuento del caballero" de los Canterbury Tales, representando no sólo el discurso patriarcal sino y, al mismo tiempo, quien desata las contiendas y quien las re-ordena. En este sentido, la figura del cuento- épico en el sentido bajtiniano del término- testimonia el discurso del orden, donde el varón es el eje vertebrador de la sociedad civil y familiar. Shakespeare, que había tomado contacto con las fuentes clásicas y medievales-tanto italianas como inglesas- incorpora en su Sueño de una noche de verano a un nuevo Teseo, que no sólo discurre acerca de la imaginación sino que también retoma la idea de orden a partir de la proclama de que es necesario someter las trampas de la imaginación a la prueba de la "fría razón". A partir de estos dos ejemplos, trataremos de reflexionar el modo cómo la literatura inglesa se apropió de estos mitos clásicosThe present article tries to illuminate the ways in which English literature configures appropriation of Athenian hero, Theseus, showing him as a model of order, reason and legality. We trace the ways in which the hero is represented both in Canterbury Tales 'and in Midsummer' Night Dream. These representations allow us to verify the negotiations between Medieval and Renisance's representations. Both Chaucer and Shakespeare try to strike a careful, though also playful, balance between "cool reason" and the dangers of the irrational and, in this way go a long distance from Plutarch's or Ovide's Theseus. They also depart from classic mythFil: Featherston, Cristina Andrea. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina

The comparative efficacy of some of the commonly used urinary antibacterial agents in the treatment of experimental canine bacterial nephritis

Call number: LD2668 .T4 1958 F43Master of Scienc

Determining What's Really Important to Lenders: Factors Affecting the Agricultural Loan Decision-Making Process

Agricultural lenders in today’s environment face many challenges when evaluating the creditworthiness of farm borrowers. To address these challenges, a survey was conducted with financial institutions in Kansas and Indiana where agricultural lenders were asked for their response to hypothetical agricultural loan requests. Each loan request differed by the borrower’s character, financial record keeping, productive standing, Fair Isaac credit bureau score, and credit risk. Lenders provided information about themselves and their financial institutions. The survey data obtained determine the relative importance of financial and non-financial information when analyzing agricultural loan applications. Tobit models are estimated to identify the borrower and lender characteristics that are important in determining loan approval while OLS models are used to investigate the factors that affect interest rates offered to farm borrowers. The results provide a comparison of agricultural lending between two important agricultural states. The results from this analysis also provide lenders with insight on the factors that influence the decision making process of other agricultural lenders.Agricultural loans, Credit bureau score, Credit evaluation, Interest rates

User Guide: A Guide to Disability Statistics from the National Assessment of Educational Programs (NAEP)

Policymakers, service providers, disability advocacy groups and researchers use disability statistics for a wide variety of purposes. A common problem that these groups encounter is finding a data source, a disability definition and/or a statistical method that provides them with a disability statistic that is both relevant to their needs and useful. The mission of the Cornell StatsRRTC is to bridge the divide between the sources of disability data and the users of disability statistics. One product of this effort is a series of User Guides to national survey data sets that collect information on the disability population. The purpose of each of the User Guides is to provide disability data users with: 1. An easily accessible guide to the disability information available in the nationally representative survey; 2. Estimates of the population with a disability, the disability prevalence rate, and estimates of participation-related statistics; 3. A description of the unique features of the dataset that will help disability statistics users determine whether the dataset can provide them with the statistic that they need; and 4. A description of how the dataset compares to other national data that are used to describe the population with disabilities. This User Guide contains information on the National Assessment of Educational Programs (NAEP), also known as “the Nation\u27s Report Card.” Unlike the other data sources addressed by the User Guide Series, the NAEP focuses solely on children. As a result, the focus of this Guide will shift to the inclusion and accommodation of educational activities of children with disabilities, as opposed to adult employment and economic well-being, which are the focus of many of the other User Guide

Orthotopic liver transplantation for urea cycle enzyme deficiency

Hyperammonemia, abnormalities in plasma amino acids and abnormalities of standard liver functions were corrected by orthotopic liver transplantation in a 14‐day‐old boy with carbamyl phosphate synthetase‐I deficiency and in a 35‐yr‐old man with argininosuccinic acid synthetase deficiency. The first patient had high plasma glutamine levels and no measureable citrulline, whereas citrulline values were markedly increased in Patient 2. Enzyme analysis of the original livers showed undetectable activity of carbamyl phosphate synthetase‐I in Patient 1 and arginosuccinic acid synthetase in Patient 2. Both patients were comatose before surgery. Intellectual recovery of patient 1 has been slightly retarded because of a brain abscess caused by Aspergillus infection after surgery. Both patients are well at 34 and 40 mo, respectively, after surgery. Our experience has shown that orthotopic liver transplantation corrects the life‐threatening metabolic abnormalities caused by deficiencies in the urea cycle enzymes carbamyl phosphate synthetase‐I and arginosuccinic acid synthetase. Seven other patients–six with ornithine transcarbamylase deficiency and another with carbamyl phosphate synthetase‐I deficiency–are known to have been treated elsewhere with liver transplantation 1 1/2 yr or longer ago. Four of these seven recipients also are well, with follow‐ups of 1 1/2 to 5 yr. Thus liver transplantation corrects the metabolic abnormalities of three of the six urea cycle enzyme deficiencies, and presumably would correct all. (Hepatology 1992;15:419–422). Copyright © 1992 Wiley Subscription Services, Inc

Jet fuel property changes and their effect on producibility and cost in the U.S., Canada, and Europe

The effects of changes in properties and blending stocks on the refinery output and cost of jet fuel in the U.S., Canada, and Europe were determined. Computerized refinery models that minimize production costs and incorporated a 1981 cost structure and supply/demand projections to the year 2010 were used. Except in the West U.S., no changes in jet fuel properties were required to meet all projected demands, even allowing for deteriorating crude qualities and changes in competing product demand. In the West U.S., property changes or the use of cracked blendstocks were projected to be required after 1990 to meet expected demand. Generally, relaxation of aromatics and freezing point, or the use of cracked stocks produced similar results, i.e., jet fuel output could be increased by up to a factor of three or its production cost lowered by up to $10/cu m. High quality hydrocracked stocks are now used on a limited basis to produce jet fuel. The conversion of U.S. and NATO military forces from wide-cut to kerosene-based jet fuel is addressed. This conversion resulted in increased costs of several hundred million dollars annually. These costs can be reduced by relaxing kerosene jet fuel properties, using cracked stocks and/or considering the greater volumetric energy content of kerosene jet fuel