2,581 research outputs found

    DEVELOPMENT OF VIRTUAL EVENT MARKETING

    Get PDF
    In the last few years the Pichia pastoris expression system has been gaining more and more interest for the expression of recombinant proteins. Many groups have employed fermentation technology in their investigations because the system is fairly easy to scale up and suitable for the production in the milligram to gram range. A large number of heterologous proteins from different sources has been expressed, but the fermentation process technology has been investigated to a lesser extent. A large number of fermentations are carried out in standard bioreactors that may be insufficiently equipped to meet the demands of high-cell-density fermentations of methylotrophic yeasts. In particular, the lack of on-line methanol analysis leads to fermentation protocols that may impair the optimal expression of the desired products. We have used a commercially available methanol sensor to investigate in detail the effects of supplementary glycerol feeding while maintaining a constant methanol concentration during the induction of a Mut+ strain of Pichia pastoris. Specific glycerol feed rates in the range of 38-4.2 mg × g(exp -1) × h(exp -1) (mg glycerol per gram fresh weight per hour) were investigated. Expression of the recombinant scFv antibody fragment was only observed at specific feed rates below 6 mg × g(exp -1) × h(exp -1). At low specific feed rates, growth was even lower than with methanol as the sole carbon source and the harvest expression level of the scFv was only half of that found in the control fermentation. These results show that glycerol inhibits expression driven by the AOX1 promoter even at extremely limited availability and demonstrate the benefits of on-line methanol control in Pichia fermentation research

    Speech Communication

    Get PDF
    Contains three reports on research facilities and systems.U. S. Air Force Cambridge Research Laboratories, Office of Aerospace Research, under Contract F19628-69-C-0044National Institutes of Health (Grant 2 ROl NB-04332-06

    Law Library Consortium Data Base Components and Standards Study Group Report

    Get PDF
    The Data Base Components and Standards Committee of the Law Library Consortium recommends the establishment of a national law data base to meet the multi-faceted needs of the legal community for legal and law-related information. The scope of the Report includes bibliographic description and control, as well as subject and full-text access to Anglo-American, foreign, comparative, and international law materials in monographs, serials, non-book media including audio-visual and computerized information, computerassisted instruction, confidential data control and resource persons. Standardsf or inputting information are suggested

    Law Library Consortium Data Base Components and Standards Study Group Report

    Get PDF
    The Data Base Components and Standards Committee of the Law Library Consortium recommends the establishment of a national law data base to meet the multi-faceted needs of the legal community for legal and law-related information. The scope of the Report includes bibliographic description and control, as well as subject and full-text access to Anglo-American, foreign, comparative, and international law materials in monographs, serials, non-book media including audio-visual and computerized information, computerassisted instruction, confidential data control and resource persons. Standardsf or inputting information are suggested

    Charge order from structured coupling in VSe<sub>2</sub>

    Get PDF
    Charge order -- ubiquitous among correlated materials -- is customarily described purely as an instability of the electronic structure. However, the resulting theoretical predictions often do not match high-resolution experimental data. A pertinent case is 1T-VSe2, whose single-band Fermi surface and weak-coupling nature make it qualitatively similar to the Peierls model underlying the traditional approach. Despite this, its Fermi surface is poorly nested, the thermal evolution of its charge density wave (CDW) ordering vectors displays an unexpected jump, and the CDW gap itself evades detection in direct probes of the electronic structure. We demonstrate that the thermal variation of the CDW vectors is naturally reproduced by the electronic susceptibility when incorporating a structured, momentum-dependent electron-phonon coupling, while the evasive CDW gap presents itself as a localized suppression of spectral weight centered above the Fermi level. Our results showcase the general utility of incorporating a structured coupling in the description of charge ordered materials, including those that appear unconventional

    The differential effects of plasma from two groups of clinically similar schizophrenic patients on learning behavior in rats

    Full text link
    The effects of plasma from normal subjects and chronic schizophrenic patients were determined on the rate of learning a pole jump response in rats. The animals were trained to a buzzer CS and electroshock US. Mean trials to a 90 per cent avoidance criterion were determined using a 100 trial cut off. Plasma and other control solutions were given intraperitoneally in the morning and the procedure repeated in the afternoon with separate groups of rats. Test trials were initiated five minutes after injection. It was found that all plasma, in contrast to saline, produced an increase in the number of trials to learn the avoidance response. No difference in behavioral effects was noted comparing the plasma of all chronic schizophrenics to normals. However, within the chronic schizophrenic population there are subgroups whose plasma was differentially effective in reducing rate of learning. These results are preliminary and subject to continued experimentation. They are presented here to make others awake of the need to consider the existence of possible biologic subgroupings of schizophrenia in future investigations of the plasma-behavior interaction.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/33404/1/0000805.pd

    Speech Communication

    Get PDF
    Contains reports on three research projects.National Institutes of Health (Grant 5 RO1 NS04332-13)National Institutes of Health (Grant 1 T32 NS07040-01)Joint Services Electronics Program (Contract DAAB07-75-C-1346

    Auf dem Wege zu einer integrierten Versorgung: Neue sozialrechtliche Rahmenbedingungen unter Berücksichtigung der Erfahrungen aus den USA und am Beispiel Berlins

    Full text link
    Die vollzogene Gesundheitsreform eröffnet im Rahmen des Sozialgesetzbuches neue Möglichkeiten für Managed Care Lösungen. Bislang basierte das System auf Kollektivverträgen während Managed Care selektives Kontrahieren von Versicherungen mit Leistungsanbietern vorsieht. Im Ergebnis soll der Wettbewerb zwischen den Krankenversicherungen verstärkt werden. Die Einführung von zusätzlichen Wettbewerbselementen soll eine kostengünstigere und dennoch qualitativ hochwertige Versorgung sicherstellen. In den USA ist ein Grossteil der Bevölkerung in unterschiedlichen Formen von Managed Care Organisationen versichert, deshalb soll eine kritische Analyse der amerikanischen Erfahrungen beispielhaft in die Arbeit einfließen. Kosteneinsparungen konnten dort nur mit Hilfe eines durchgängigen Managed Care Systems erreicht werden. Im Rahmen der Arbeit soll untersucht werden, inwiefern eine Managed Care Organisation in Berlin implementiert werden könnte. Als Region soll dabei der innere S-Bahnring der Stadt Berlin dienen. Dort gibt es genügend Leistungserbringer, die zu einem Netzwerk verbunden werden könnten. Als Rechtsrahmen wird eine GmbH-Lösung empfohlen.The latest health care reform in German provides a new codification of the social law and framework that creates the base for a managed care. Up to now social security was characterised by collective agreements whereas managed care consists of a number of selective agreements between insurance companies and providers of medical services. As a result competition between the providers should be increased. The introduction of additional market elements should improve the co-ordination of the single providers. This is for the purpose to offer a high-grade health service at lower costs. In the United States a greater part of the population is enrolled in a Managed Care Organisation (MCO) and that is why it served as an example to be critically reviewed. A reduction of costs can only be realised when the Managed Care idea dominates all sectors of public health service and a consistent system can be founded. The present work examines the possibilities to implement a MCO in Berlin. The inner circle of the Berlin urban railway (S-Bahn) is an ideal location for the MCO. Favourable are a relatively low age of local population and a high level of education. Both criteria are correlated with a low demand of health services. Moreover in the mentioned area already exists a certain number of hospitals and medical service points that could be united to a network. The legal form of a "GmbH" (Ltd.) fits best for this purpose

    Speech Communication

    Get PDF
    Contains reports on four research projects.National Institutes of Health (Grant 5 ROl NB04332-08)U.S. Air Force Cambridge Research Laboratories, Office of Aerospace Research, under Contract F19628-69-C-004
    corecore