oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 1 )

2019 ( 213 )

2018 ( 288 )

2017 ( 313 )

Custom range...

Search Results: 1 - 10 of 138805 matches for " Friese K "
All listed articles are free for downloading (OA Articles)
Page 1 /138805
Display every page Item
Preface
Rabe T,Friese K
Journal für Reproduktionsmedizin und Endokrinologie , 2011,
Abstract:
Preface 50 Years of Gonadotropin Therapy
Albring C,Behre HM,Bühler K,Friese K
Journal für Reproduktionsmedizin und Endokrinologie , 2013,
Abstract:
Genital Tuberculosis as the Cause of Tuboovarian Abscess in an Immunosuppressed Patient
M. Ilmer,F. Bergauer,K. Friese,I. Mylonas
Infectious Diseases in Obstetrics and Gynecology , 2009, DOI: 10.1155/2009/745060
Abstract: Background. Although tuberculosis (TB) is a major health problem worldwide, primary extrapulmonary tuberculosis (EPTB), and in particular female genital tract infection, remains a rare event. Case Report. A 35-year-old human immunodeficiency virus (HIV) seropositive woman of African descent with lower abdominal pain and fever of two days duration underwent surgery due to left adnexal mass suggesting pelvic inflammatory disease. The surgical situs showed a four quadrant peritonitis, consistent with the clinical symptoms of the patient, provoked by a tuboovarian abscess (TOA) on the left side. All routine diagnostic procedures failed to determine the causative organism/pathogen of the infection. Histopathological evaluation identified a necrotic granulomatous salpingitis and specific PCR analysis corroborated Mycobacterium tuberculosis (M. Tb). Consequently, antituberculotic therapy was provided. Conclusion. In the differential diagnosis of pelvic inflammatory disease, internal genital tuberculosis should be considered. Moreover, physicians should consider tuberculous infections early in the work-up of patients when immunosuppressive conditions are present.
Behaviour of suspended particulate matter (SPM) and selected trace metals during the 2002 summer flood in the River Elbe (Germany) at Magdeburg monitoring station
M. Baborowski,W. von Tümpling, jr.,K. Friese
Hydrology and Earth System Sciences (HESS) & Discussions (HESSD) , 2004,
Abstract: In August 2002, in the worst flooding in more than 100 years, the River Elbe destroyed built-up areas and caused widespread erosion and the relocation of soils and river sediments. To assess the pollutants entering the water, surveys of dissolved constituents and suspended particulate matter (SPM) were carried out daily during the flood at a monitoring station near Magdeburg. The sampling point is part of the network of the International Commission for the Protection of the Elbe (ICPE). The results were compared with those of previous flood studies which used the same sampling strategy. Unlike past floods, the 2002 flood was characterised by the transport of relatively fine suspended material with a low mass concentration. Owing to different input sources, the maxima of dry weight and of particle number concentration occurred at different times. Hg, Fe, Mn, Zn, Cu, Ni and Cr showed a maximum concentration concurrent with the dry weight of the SPM, whereas the maximum concentrations of As, Pb, and Cd coincided with the particle number concentration peak. The concentration of particulate matter decreased rapidly, unlike the concentrations of dissolved substances such as DOC and trace metals, as well as the values of UV extinction, all of which remained high for a longer period. Comparing the results of the 2002 flood with the winter floods in 1995, 1999 and 2000, revealed increased values of As and Pb as well as higher concentrations of dissolved compounds. Keywords: river, flood, transport, suspended particulate matter, trace metals, dissolved compounds, Elbe
Updated aerosol module and its application to simulate secondary organic aerosols during IMPACT campaign May 2008
Y. P. Li,H. Elbern,K. D. Lu,E. Friese
Atmospheric Chemistry and Physics Discussions , 2013, DOI: 10.5194/acpd-13-5961-2013
Abstract: The formation of Secondary organic aerosol (SOA) was simulated with the Secondary ORGanic Aerosol Model (SORGAM) by a classical gas-particle partitioning concept, using the two-product model approach, which is widely used in chemical transport models. In this study, we extensively updated SORGAM including three major modifications: firstly, we derived temperature dependence functions of the SOA yields for aromatics and biogenic VOCs, based on recent chamber studies within a sophisticated mathematic optimization framework; secondly, we implemented the SOA formation pathways from photo oxidation (OH initiated) of isoprene; thirdly, we implemented the SOA formation channel from NO3-initiated oxidation of reactive biogenic hydrocarbons (isoprene and monoterpenes). The temperature dependence functions of the SOA yields were validated against available chamber experiments. Moreover, the whole updated SORGAM module was validated against ambient SOA observations represented by the summed oxygenated organic aerosol (OOA) concentrations abstracted from Aerosol Mass Spectrometer (AMS) measurements at a rural site near Rotterdam, the Netherlands, performed during the IMPACT campaign in May 2008. In this case, we embedded both the original and the updated SORGAM module into the EURopean Air pollution and Dispersion-Inverse Model (EURAD-IM), which showed general good agreements with the observed meteorological parameters and several secondary products such as O3, sulfate and nitrate. With the updated SORGAM module, the EURAD-IM model also captured the observed SOA concentrations reasonably well especially those during nighttime. In contrast, the EURAD-IM model before update underestimated the observations by a factor of up to 5. The large improvements of the modeled SOA concentrations by updated SORGAM were attributed to the mentioned three modifications. Embedding the temperature dependence functions of the SOA yields, including the new pathways from isoprene photo oxidations, and switching on the SOA formation from NO3 initiated biogenic VOCs oxidations contributed to this enhancement by 10%, 22% and 47%, respectively. However, the EURAD-IM model with updated SORGAM still clearly underestimated the afternoon SOA observations up to a factor of two. More work such as to improve the simulated OH concentrations under high VOCs and low NOx concentrations, further including the SOA formation from semi-volatile organic compounds, the correct aging process of aerosols, oligomerization process and the influence on the biogenic SOA by the anthropogenic SOA, are still require
Stimulierung der hCG Protein- und mRNA-Expression in isolierten Trophoblastzellen
Jeschke U,Briese V,Friese K,Reimer T
Journal für Fertilit?t und Reproduktion , 2001,
Abstract: Das immunsuppressive Plazentaprotein Glycodelin A wird in hohen Konzentrationen (bis zu 232 mg/l) im ersten Trimester der Schwangerschaft vom sekretorischen Endometrium und der Dezidua sezerniert. Der Anteil von Glycodelin A an der durch die Dezidua freigesetzten Proteinmenge betr gt in dieser Zeit 10%. In der vorliegenden Studie beschreiben wir die Wirkung von Glycodelin A auf die hCG-Freisetzung von Trophoblastzellen in vitro. Die Isolierung von Cytotrophoblastzellen erfolgte aus zum Termin geborener Plazenta durch Fragmentierung einzelner Kotyledonen. Cytotrophoblastzellen fusionieren in vitro zu Syncytiotrophoblastzellen. Cytotrophoblastzellen wurden mit unterschiedlichen Konzentrationen von Glycodelin A inkubiert. Die Produktion von hCG-mRNA und des Proteins wurde jeweils in 8 h-Abst nden beim Protein und in 30 min.-Abst nden bei der RNA gemessen. Mit Glycodelin A versetzte Trophoblastzellen weisen in vitro eine signifikant erh hte hCG-mRNA und Protein-Freisetzung im Vergleich zu unbehandelten Zellen auf. HCG ist ein "Markerprotein" für den Differenzierungsproze von Cytotrophoblastzellen. Das mütterliche Protein Glycodelin A scheint fetale Cytotrophoblastzellen durch die erh hte hCG-Freisetzung in der Differenzierung zu stimulieren.
Incontinence, bladder neck mobility, and sphincter ruptures in primiparous women
K Jundt, I Scheer, B Schiessl, K Karl, K Friese, UM Peschers
European Journal of Medical Research , 2010, DOI: 10.1186/2047-783x-15-6-246
Abstract: Questionnaire evaluating symptoms of urinary and anal incontinence in nulliparous women before and after delivery and correlating these symptoms with functional changes of the pelvic floor based on a careful gynaecologic examination as well as perineal and endoanal ultrasound.112 women were included in our study and came for the first visit, 99 women returned for follow-up 6 months after childbirth. Stress and flatus incontinence significantly increased from before pregnancy (3 and 12%) to after childbirth (21 and 28%) in women with spontaneous delivery or vacuum extraction. No new symptoms occurred after c-section. There was no significant difference between the bladder neck position before and after delivery. The mobility of the bladder neck was significantly higher after vaginal delivery using a vacuum extraction compared to spontaneous delivery or c-section.The bladder neck in women with post partum urinary stress incontinence was significantly more mobile than in continent controls. The endoanal ultrasound detected seven occult sphincter defects without any correlation to symptoms of anal incontinence.Several statistically significant changes of the pelvic floor after delivery were demonstrated. Spontaneous vaginal delivery or vacuum extraction increases the risk for stress or anal incontinence, delivery with vacuum extraction leads to higher bladder neck mobility and stress incontinent women have more mobile bladder necks than continent women.After childbirth about a third of women have urinary incontinence and up to a tenth have some degree of anal incontinence (Hay-Smith et al. 2008).Whether or not elective cesarean section prevents these symptoms in the long-term is still unclear. After the first delivery, women who had delivered vaginally have two-fold more incontinence than those who had delivered by cesarean section. However, this protective effect of cesarean deliveries on urinary incontinence decreases with age and is not present in older women (Nygaar
ATLAS.ti als Auswertungstool des Datensatzes zur Finanzkrise Using ATLAS.ti for Analyzing the Financial Crisis Data Utilizando ATLAS.ti para analizar datos de la crisis financiera
Susanne Friese
Forum : Qualitative Social Research , 2010,
Abstract: Die Datenanalyse, die in diesem Artikel vorgestellt wird, ist Teil eines umfangreicheren Experiments, in dem Entwickler/innen von CAQDAS (Software für computergestützte qualitative Datenanalyse), oder Personen, die eng mit ihnen zusammenarbeiten, Daten analysiert haben, die auf einem gemeinsamen Datensatz basieren. Ziel war es, herauszufinden, ob und wie die jeweilige Software die Analyse der Daten beeinflusst. Meine These ist, dass der Einfluss von Software gr er wird, je weniger methodische Kenntnisse bei den Anwender/innen vorhanden sind. D.h., je gr er die methodischen Fachkenntnisse und die Sicherheit in der Umsetzung einer bestimmten Methode sind, desto geringer ist der Einfluss von Software. Daher setzte ich den Schwerpunkt in diesem Artikel auf den methodischen Ansatz, den ich für die Analyse der Daten verwendet habe (siehe dazu auch FRIESE 2011) und erkl re dann die Umsetzung in ATLAS.ti. URN: http://nbn-resolving.de/urn:nbn:de:0114-fqs1101397 This article is part of a larger experiment where developers of CAQDAS (Computer Assisted Qualitative Data AnalysiS) packages, or those cooperating very close with them, analyzed data based on a common data set. The aim was to find out whether the use of software influences the ways we analyze data and if so how. My argument is that software has a greater influence when users lack methodological know-how. The greater the methodological expertise and confidence in using a certain methodology in the context of software, the lesser is the influence of software. Therefore the focus of my paper is on the methodological approach that I am using when analyzing qualitative data (see FRIESE, 2011). After outlining this approach, I illustrate how I have applied it in analyzing the financial crisis data with ATLAS.ti. URN: http://nbn-resolving.de/urn:nbn:de:0114-fqs1101397 Este artículo es parte de un experimento más grande en el que desarrolladores de CAQDAS (Análisis de Datos Cualitativos Asistido por Computadora) o quienes cooperan muy cerca de ellos, analizaron datos provenientes de un conjunto común. El objetivo fue encontrar si el uso de software influye en las formas en que analizamos datos y cómo, si lo hace. Mi argumento es que el software posee influencia mayor cuando el usuario carece de "saber cómo" metodológico. Entre mayor es la experiencia y confianza metodológicas al usar cierta metodología en el contexto del software, menor es la influencia de éste. Por tanto, mi artículo se centra en el enfoque metodológico que estoy usando cuando analizo datos cualitativos (ver FRIESE 2011). Luego de describir e
Review: Margaret A. Morrison, Eric Haley, Kim Bartel Sheehan & Ronal E. Taylor (2002). Using Qualitative Research in Advertising: Strategies, Techniques, and Applications / Shay Sayre (2001). Qualitative Methods for Marketplace Research Review: Margaret A. Morrison, Eric Haley, Kim Bartel Sheehan & Ronal E. Taylor (2002). Using Qualitative Research in Advertising: Strategies, Techniques, and Applications / Shay Sayre (2001). Qualitative Methods for Marketplace Research Rese a: Margaret A. Morrison, Eric Hal
Susanne Friese
Forum : Qualitative Social Research , 2004,
Abstract: In der Rezension werden zwei Bücher beschrieben, die sich dem gleichen Thema widmen und hnliche Zielgruppen ansprechen. Das Buch von SAYRE handelt über qualitative Marktforschung im Allgemeinen und richtet sich an Marketingstudenten und praktizierende Marketingfachleute. MORRISON, HALEY, SHEEHAN und TAYLOR hingegen w hlen mit der Werbebranche einen speziellen Blickwinkel. Ihre Perspektive ist insgesamt weitaus mehr an den aktuellen Praktiken eines Planers in der Werbeindustrie ausgerichtet – auch bemerkbar an ihrem Schreibstil: Das Buch ist sehr stimulierend zu lesen, auch für Lesende, die noch keine Kenntnis über qualitative Methoden besitzen. SAYREs Buch ist im Vergleich dazu mehr von einem akademischen Schreibstil gepr gt, bezieht fünf theoretische Perspektiven ein und enth lt mehr Details. Es liefert alle notwendigen Informationen, um ein qualitatives Marktforschungsprojekt konzipieren und durchführen zu k nnen. Der wesentliche Unterschied zu anderen qualitativen Methodenbüchern ist, dass jeder Schritt mit Beispielen aus dem Marketing illustriert wird. Geeignet als Lehrbuch sind im Prinzip beide Publikationen. Wegen der vielen Beispiele ist das Buch von SAYRE sehr empfehlenswert für Marketingstudenten. Das Buch von MORRISON et al. – da es ein Spezialgebiet des Marketing anspricht – würde ich hingegen nur für Studenten im Bereich der Werbeforschung empfehlen, oder aber als interessante Zweitlektüre in einem Methodenkurs für "all-round" Marketingstudenten. Wenn als Kursbestandteil ein kleines eigenes Marktforschungsprojekt durchgeführt werden soll, müssen beide Bücher erg nzt werden. Insbesondere, weil die Darstellungen über qualitative Datenanalyse u erst kurz gehalten sind. Diese Kapitel müssen auf jeden Fall entweder durch gezieltes Training im Unterricht oder weitere Literatur vervollst ndigt werden. Dennoch: Das Buch von SAYRE und auch das von MORRISON et al. sind die bisher besten qualitativen Methodenbücher, die ich im Bereich Marketing gelesen habe. URN: urn:nbn:de:0114-fqs0401258 The review discusses two books, both covering very similar contents and addressing more or less the same audience. The book by SAYRE is about the use of qualitative method in marketplace research in general and is aimed at marketing students and practitioners; the book by MORRISON, HALEY, SHEEHAN and TAYLOR focuses more specifically on one area of mar-keting, namely advertising research. MORRISON et al. provide the more practical perspective, a fact that is also reflected in the writing style of the book. It is stimulating to read, even for readers fa-miliar with qu
Review: Doris Mosbach (1999). Bildermenschen – Menschenbilder. Exotische Menschen als Zeichen in der neueren deutschen Printwerbung Review: Doris Mosbach (1999). Bildermenschen – Menschenbilder. Exotische Menschen als Zeichen in der neueren deutschen Printwerbung [People in Images—Images of People: Exotic People as Signs in the New German Print Advertisement] Rese a: Doris Mosbach (1999). Bilderme
Susanne Friese
Forum : Qualitative Social Research , 2000,
Abstract: URN: urn:nbn:de:0114-fqs0003486 URN: urn:nbn:de:0114-fqs0003486 URN: urn:nbn:de:0114-fqs0003486
Page 1 /138805
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.