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Search Results: 1 - 10 of 18594 matches for " U. Schwan "
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Diagnostik und Behandlung HIV-betroffener Paare mit Kinderwunsch
Tandler-Schneider A,Sonnenberg-Schwan U,Gingelmaier A,Meurer A
Journal für Reproduktionsmedizin und Endokrinologie , 2008,
Abstract: In Deutschland sind ca. 56.000 Menschen mit HIV infiziert, davon etwa 19 % Frauen. 75 % der Patienten sind zwischen 20 und 40 Jahre alt. Der Kinderwunsch bei HIV-Infizierten entspricht der Normalbev lkerung. Die M glichkeiten des Vorgehens bei HIV-Infektion der Frau umfassen die Selbstinsemination und bei eingeschr nkten reproduktionsmedizinischen Faktoren s mtliche Methoden der modernen Reproduktionsmedizin inkl. In-vitro-Fertilisation (IVF) und Mikroinjektion (ICSI). über das Restrisiko einer materno-fetalen Transmission muss ausführlich aufgekl rt werden. Die Behandlung sollte lediglich in speziellen Kinderwunsch-Zentren mit gro er Erfahrung stattfinden. Bei HIV-Infektion des Mannes ist nach wie vor die Insemination der Goldstandard. Noch beobachtet werden müssen die Ergebnisse der Pr expositionsprophylaxe (PrEP) mit anschlie end geplantem Geschlechtsverkehr, die lediglich bei Normozoospermie und Viruslast unter der Nachweisgrenze in Frage kommt. Bei eingeschr nkter Motilit t gibt es keine Kontraindikation gegen die In-vitro-Fertilisation (IVF) und Mikroinjektion (ICSI). Bei HIV-Konkordanz kann nach umfassender Beratung nur im Einzelfall über eine reproduktionsmedizinische Unterstützung entschieden werden.
Large scale Gd-beta-diketonate based organic liquid scintillator production for antineutrino detection
C. Aberle,C. Buck,B. Gramlich,F. X. Hartmann,M. Lindner,S. Sch?nert,U. Schwan,S. Wagner,H. Watanabe
Physics , 2011, DOI: 10.1088/1748-0221/7/06/P06008
Abstract: Over the course of several decades, organic liquid scintillators have formed the basis for successful neutrino detectors. Gadolinium-loaded liquid scintillators provide efficient background suppression for electron antineutrino detection at nuclear reactor plants. In the Double Chooz reactor antineutrino experiment, a newly developed beta-diketonate gadolinium-loaded scintillator is utilized for the first time. Its large scale production and characterization are described. A new, light yield matched metal-free companion scintillator is presented. Both organic liquids comprise the target and "Gamma Catcher" of the Double Chooz detectors.
HIV or HIV-Therapy? Causal attributions of symptoms and their impact on treatment decisions among women and men with HIV
H Kremer, U Sonnenberg-Schwan, G Arendt, NH Brockmeyer, A Potthoff, A Ulmer, K Graefe, T Lorenzen, W Starke, UA Walker, the German Competence Network HIV/AIDS
European Journal of Medical Research , 2009, DOI: 10.1186/2047-783x-14-4-139
Abstract: HIV-patients (N = 168, 46% female) completed a comprehensive symptom checklist (attributing each endorsed symptom to HIV, HIV-therapy, or other causes), reported reasons for treatment discontinuations and potential ART-related laboratory abnormalities.Main symptom areas were fatigue/sleep/energy, depression/mood, lipodystrophy, and gastrointestinal, dermatological, and neurological problems.Top HIV-attributed symptoms were lack of stamina/energy in both genders, night sweats, depression, mood swings in women; and fatigue, lethargy, difficulties concentrating in men. Women attributed symptoms less frequently to HIV than men, particularly fa-tigue(p < .01).Top treatment-attributed symptoms were lipodystrophy and gastrointestinal problems in both genders. Symptom attribution to HIV-therapy did not differ between genders.Over the past six months, 22% switched/interrupted ART due to side effects. In women, side effect-related treatment decisions were more complex, involving more side effects and substances. Remarkably, women took predominantly protease inhibitor-sparing regimens (p = .05).Both genders reported only 15% of potential ART-related laboratory abnormalities but more than 50% had laboratory abnormalities. Notably, women had fewer elevated renal parameters (p < .01).Men may attribute symptoms more often to HIV and maintain a treatment-regimen despite side effects, whereas women may be more prudent in avoiding treatment side effects. Lacking awareness of laboratory abnormalities in both genders potentially indicates gaps in physician-patient communication. Gender differences in causal attributions of symptoms/side effects may influence treatment decisions.People with HIV with the option to take antiretroviral treatment (ART) now have the prospect of a near-normal life expectancy [1]. But despite access to ART, there is still excess mortality in people with HIV, which appears to be partially due to delaying, discontinuing, or not adhering to ART [2-4]. Patients' d
Surface Initiated Polymerizations via e-ATRP in Pure Water
Seyed Schwan Hosseiny,Patrick van Rijn
Polymers , 2013, DOI: 10.3390/polym5041229
Abstract: Here we describe the combined process of surface modification with electrochemical atom transfer radical polymerization ( e-ATRP) initiated from the surface of a modified gold-electrode in a pure aqueous solution without any additional supporting electrolyte. This approach allows for a very controlled growth of the polymer chains leading towards a steady increase in film thickness. Electrochemical quartz crystal microbalance displayed a highly regular increase in surface confined mass only after the addition of the pre-copper catalyst which is reduced in situ and transformed into the catalyst. Even after isolation and washing of the modified electrode surface, reinitiation was achieved with retention of the controlled electrochemical ATRP reaction. This reinitiation after isolation proves the livingness of the polymerization. This approach has interesting potential for smart thin film materials and offers also the possibility of post-modification via additional electrochemical induced reactions.
Incidence and distribution of filamentous fungi during fermentation, drying and storage of coffee (Coffea arabica L.) beans
Silva, Cristina Ferreira;Batista, Luis Roberto;Schwan, Rosane Freitas;
Brazilian Journal of Microbiology , 2008, DOI: 10.1590/S1517-83822008000300022
Abstract: the objective of this work was to isolate and characterize filamentous fungi present in different stages of harvest, fermentation, drying and storage of coffee beans processed by natural method. the cherries were hand-picked and then placed on a cement drying platform where they remained until reached 11% of humidity. microbial counts were found in all samples during fermentation and drying of the coffee beans. counts of fungi in the coffee cherries collected from the tree (time 0) were around 1.5 x 103 cfu/g. this number increased slowly during the fermentation and drying reaching values of 2 x 105 cfu/g within 22 days of processing. two hundred and sixty three isolates of filamentous fungi were identified. the distribution of species during fermentation and drying was very varied while there was a predominance of aspergillus species during storage period. the genera found were pestalotia (4), paecelomyces (4), cladosporium (26), fusarium (34), penicillium (81) and aspergillus (112) and comprised 38 different species.
Acompanhamento do processo de fermenta??o para produ??o de cacha?a através de métodos microbiológicos e físico-químicos com diferentes isolados de Saccharomyces cerevisiae
Soares, Thaís Louise;Silva, Cristina Ferreira;Schwan, Rosane Freitas;
Ciência e Tecnologia de Alimentos , 2011, DOI: 10.1590/S0101-20612011000100027
Abstract: with the increasing demand from the consumer market for better quality products, constant improvement has been sought in cacha?a production since all stages of the fermented-distilled beverage production chain are important. the objective of this study was to follow the fermentation process for cacha?a production using different saccharomyces cerevisiae isolates from the quantification of secondary metabolites by gaseous chromatography. the process was followed from the inoculate preparation to the end of the fermentation process. the study was carried out at the federal university of lavras (ufla). eight saccharomyces cerevisiae isolates were used inoculated in sugar cane syrup, from which the samples were removed during the growth phase of the fed-batch and fermentation system. the samples were analyzed for flocculation rate, °brix, and superior alcohols. the evaluated parameters presented differences for each isolate. the best isolate for the cacha?a production was the isolate ufla ca116 since it presented a high number of live cells, greater flocculation rate, no 1-propanol, and 1.3 butanediol.
Metodologia para elabora??o de fermentado de cajá (Spondias mombin L.)
Dias, Disney Ribeiro;Schwan, Rosane Freitas;Lima, Luiz Carlos Oliveira;
Ciência e Tecnologia de Alimentos , 2003, DOI: 10.1590/S0101-20612003000300008
Abstract: the aim of this work was to define the methodology to produce and evaluate the acceptance of alcoholic beverage made from yellow mombin (spondias mombin) fruit pulp. the fruit pulp used was chemically characterised (sugars, acidity, pectin, vitamin c, pectinases, starch and phenols). the yellow mombin fruit pulp had its sugar content adjusted to 24°brix with a sucrose solution. the must was deacidified using caco3 until it reached ph value of 3.8 and then enzymatically treated with ultrazym afp-l (novo dk). sulphur dioxide, as potassium metabissulfite, was used as an inhibitor of bacterial growth and as an antioxidant. bentonite was also added to aid the must clarification. after these adjustments the must was inoculated with 107 cell/ml of saccharomyces cerevisiae wild type strain. the fermentation was carried out at 22°c for 10 days, with daily monitoring of brix and fermentation activity by the liberation of co2. at the end of the fermentation, the fermented must was stored at 10°c for 10 days and a first separation of the yeasts and solids particles was done. the second separation was done 30 days later, before the filtration. ethanol, glycerol, organic acids, higher alcohols, methanol, esters and acetaldehyde were analysed in the final product. there was a high concentration of higher alcohols, which are usually responsible for the flavour found in alcoholic beverages. the acceptance of the drink was tested with 45 non-experienced panellists using the hedonic scale (1-9). the beverage was well accepted and might be a good investiment for small or medium companies.
Truths and myths about the mushroom Agaricus blazei
Dias, Eustáquio Souza;Abe, Carlos;Schwan, Rosane Freitas;
Scientia Agricola , 2004, DOI: 10.1590/S0103-90162004000500014
Abstract: the mushroom agaricus blazei murrill was discovered in piedade, state of s?o paulo, brazil, and sent to japan to be studied for its medicinal properties. studies in guinea pigs revealed antitumor properties, triggering japanese importation of a. blazei from brazil. because of its high price on the international market, many companies and rural growers produce a. blazei as alternative crop to increase income, but because interest in this mushroom occurred suddenly there has not been enough time for the scientific community to investigate it and, technology used for its cultivation is still based on empirical rules. there are also some contradicting data regarding the classification of this mushroom, and its antitumor properties still need to be confirmed in humans.
Bis(2-bromobenzyl) trisulfide
Suneel. P. Singh,Alan. J. Lough,Adrian. L. Schwan
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809001834
Abstract: The title molecule, C14H12Br2S3, lies on a crystallographic twofold rotation axis which bisects the S—S—S angle. The dihedral angle between the two symmetry-related benzene rings is 89.91 (9)°. In terms of hybridization principles, the S—C—C angle is slightly larger than expected.
Truths and myths about the mushroom Agaricus blazei
Dias Eustáquio Souza,Abe Carlos,Schwan Rosane Freitas
Scientia Agricola , 2004,
Abstract: The mushroom Agaricus blazei Murrill was discovered in Piedade, state of S o Paulo, Brazil, and sent to Japan to be studied for its medicinal properties. Studies in guinea pigs revealed antitumor properties, triggering Japanese importation of A. blazei from Brazil. Because of its high price on the international market, many companies and rural growers produce A. blazei as alternative crop to increase income, but because interest in this mushroom occurred suddenly there has not been enough time for the scientific community to investigate it and, technology used for its cultivation is still based on empirical rules. There are also some contradicting data regarding the classification of this mushroom, and its antitumor properties still need to be confirmed in humans.
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