1,102 research outputs found

    Beurteilung der NĂ€hrstoffversorgung bei hochleistenden Tieren – hier Mastbroiler – mit Öko-Futtermitteln

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    Das Ziel der beiden Versuche des Forschungsauftrages 02OE023 „Beurteilung der NĂ€hrstoffversorgung bei hochleistenden Tieren – hier Mastbroiler – mit Öko-Futtermitteln“ bestand darin, den Einfluss einer gestaffelten Protein- und Energieversorgung langsamwachsender Broiler auf Wachstumsmerkmale und Ganzkörperzusammensetzung zu prĂŒfen. FĂŒr die Untersuchungen standen 469 (Versuch 1) bzw. 384 (Versuch 2) mĂ€nnliche Broiler der Herkunft Hubbard ISA 257 zur VerfĂŒgung. Die Versuche, die eine LĂ€nge von 56 bzw. 84 Tage hatten, wurden in ein, zwei oder drei Phasen (1. – 35., 36. – 56., 57. – 84. Tag) eingeteilt. Die Broiler erreichten im Versuch 2 Mastendmassen von ĂŒber 4 kg nach 84 Tagen durch eine hohe Proteinversorgung von 23 % im Starterfutter (0,4 % Methionin) vom 1. – 35. Lebenstag sowie 21 % (0,37 % Methionin) im Nachfolgefutter, um insbesondere eine bedarfsgerechtere Methioninkonzentration im Futter, das sich aus Futtermitteln aus dem ökologischen Landbau zusammensetzte, zu realisieren. Eine Energiekonzentration von 12 MJ ME pro kg (Trockensubstanz) wurde dabei dem höheren Energiebedarf der bewegungsaktiven Broiler gerecht. Eine FĂŒtterung der langsamwachsenden Broiler in zwei oder drei Phasen (1. - 35., 36. – 56., 57. – 84. Tag) und einer damit verbundenen besseren Anpassung der Proteinkonzentration im Futter an den Bedarf der Tiere erwies sich als geeignete FĂŒtterungstechnik. Nach einer intensiven FĂŒtterung der Broiler mit höheren Proteingehalten im ökologischen Futter bzw. durch FĂŒtterung eines optimierten kommerziellen Futters zeigte sich, dass das der tĂ€gliche Zuwachs der Broiler nach 56 Tagen Mast rĂŒckgĂ€ngig war. Der Futteraufwand, der bei den herkömmlich gefĂŒtterten Broilern bis zum 56. Tag bei 1,8 kg/kg und den intensiv-ökologisch gefĂŒtterten Broilern bei 2,0 kg/kg lag, verschlechterte sich in den folgenden 4 Wochen auf 3,2 kg/kg bzw. 3,4 kg/kg. Erste Hinweise auf eine mögliche Bedeutung fĂŒr den Einsatz von KrĂ€utern, die Ă€therische Öle mit einem hohen Anteil an Carvacrol enthalten, im ökologischen Broilerfutter gaben die Wachstumsergebnisse der Broiler, deren Futter mit einem 1 % getrocknetem Bohnenkraut angereichert war

    Speech Analysis

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    Contains reports on two research projects.National Science Foundatio

    Geographic Distribution of Childbirth among Adolescents in Cameroon from 2003 to 2005

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    Objective. To determine the frequency and the trend of adolescents (10–19 years) in childbirth within a period of 3 years in referral maternity units in Cameroon. Method. Descriptive and retrospective study for a 3-year period (2003–2005) in referral maternity units headed by a qualified Obstetrician-Gynecologist. We analyzed the trend and geographic distribution of 8222 adolescent deliveries over 3 years. Epi Info 3.5 software was used for data analysis. Chi square test for trend was used to assess the contribution of adolescent deliveries over years. The trend was considered significant if P < .05. Results. During the period of the study, there was a total of 8387 deliveries. We excluded 165 women because of lack of information about age. We therefore included a total of 8222 adolescent deliveries. Overall, the contribution of adolescents to deliveries ranged from 6.87% to 26.51%, depending on the region with a national mean of 14.23%. Adolescents aged 16 or less contributed to 2.82% of deliveries while those aged from 17 to 19 contributed to 11.41%. The contribution of adolescents to deliveries decreased significantly over 3 years (P < .0001). Conclusion. The study underscores the importance of Public Health programs in strengthening maternity services for adolescents in Cameroon while taking into consideration geographic differences

    Colon cancer associated transcript-1 (CCAT1) expression in adenocarcinoma of the stomach

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    Background: Long non-coding RNAs (lncRNAs) have been shown to have functional roles in cancer biology and are dys-regulated in many tumors. Colon Cancer Associated Transcript -1 (CCAT1) is a lncRNA, previously shown to be significantly up-regulated in colon cancer. The aim of this study is to determine expression levels of CCAT1 in gastric carcinoma (GC). Methods: Tissue samples were obtained from patients undergoing resection for gastric carcinoma (n=19). For each patient, tumor tissue and normal appearing gastric mucosa were taken. Normal gastric tissues obtained from morbidly obese patients, undergoing laparoscopic sleeve gastrectomy served as normal controls (n=19). A human gastric carcinoma cell line (AGS) served as positive control. RNA was extracted from all tissue samples and CCAT1 expression was analyzed using quantitative real time-PCR (qRT-PCR). Results: Low expression of CCAT1 was identified in normal gastric mucosa samples obtained from morbidly obese patients [mean Relative Quantity (RQ) = 1.95±0.4]. AGS human gastric carcinoma cell line showed an elevated level of CCAT1 expression (RQ=8.02). Expression levels of CCAT1 were approximately 10.8 fold higher in GC samples than in samples taken from the negative control group (RQ=21.1±5 vs. RQ=1.95±0.4, respectively, p<0.001). Interestingly, CCAT1 expression was significantly overexpressed in adjacent normal tissues when compared to the negative control group (RQ = 15.25±2 vs. RQ=1.95±0.4, respectively, p<0.001). Tissues obtained from recurrent GC cases showed the highest expression levels (RQ = 88.8±31; p<0.001). Expression levels increased with tumor stage (T4- 36.4±15, T3- 16.1±6, T2- 4.7±1), however this did not reach statistical significance (p=0.2). There was no difference in CCAT1 expression between intestinal and diffuse type GC (RQ=22.4±7 vs. 22.4±16, respectively, p=0.9). Within the normal gastric tissue samples, no significant difference in CCAT1 expression was observed in helicobacter pylori negative and positive patients (RQ= 2.4±0.9 vs. 0.93±0.2, respectively, p=0.13). Conclusion: CCAT1 is up-regulated in gastric cancer, and may serve as a potential bio-marker for early detection and surveillance. © Ivyspring International Publisher

    Putting underspecification in context: ERP evidence for sparse representations in morphophonological alternations

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    Numerous studies have shown evidence for a sparse lexicon in speech perception, often in the guise of underspecification, where certain information is omitted in the specification of phonological forms. While previous work has made a good case for underspecifying certain features of single speech sounds, the role of phonological context in underspecification has been overlooked. Contextually-mediated underspecification is particularly relevant to conceptualizations of the lexicon, as it is couched in item-specific (as opposed to phoneme-specific) patterning. In this study, we present behavioural and ERP evidence that surrounding phonological context may trigger underspecified lexical forms, using regular morphophonological alternations in English

    a prospective ‘before/after’ cohort study

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    Objectives Antibiotic resistance has risen dramatically over the past years. For individual patients, adequate initial antibiotic therapy is essential for clinical outcome. Computer-assisted decision support systems (CDSSs) are advocated to support implementation of rational anti-infective treatment strategies based on guidelines. The aim of this study was to evaluate long- term effects after implementation of a CDSS. Design This prospective ‘before/after’ cohort study was conducted over four observation periods within 5 years. One preinterventional period (pre) was compared with three postinterventional periods: directly after intensive implementation efforts (post1), 2 years (post2) and 3 years (post3) after implementation. Setting Five anaesthesiological-managed intensive care units (ICU) (one cardiosurgical, one neurosurgical, two interdisciplinary and one intermediate care) at a university hospital. Participants Adult patients with an ICU stay of >48 h were included in the analysis. 1316 patients were included in the analysis for a total of 12 965 ICU days. Intervention Implementation of a CDSS. Outcome measures The primary end point was percentage of days with guideline adherence during ICU treatment. Secondary end points were antibiotic-free days and all-cause mortality compared for patients with low versus high guideline adherence. Main results Adherence to guidelines increased from 61% prior to implementation to 92% in post1, decreased in post2 to 76% and remained significantly higher compared with baseline in post3, with 71% (p=0.178). Additionally, antibiotic-free days increased over study periods. At all time periods, mortality for patients with low guideline adherence was higher with 12.3% versus 8% (p=0.014) and an adjusted OR of 1.56 (95% CI 1.05 to 2.31). Conclusions Implementation of computerised regional adapted guidelines for antibiotic therapy is paralleled with improved adherence. Even without further measures, adherence stayed high for a longer period and was paralleled by reduced antibiotic exposure. Improved guideline adherence was associated with reduced ICU mortality

    Water Dynamics at Protein Interfaces: Ultrafast Optical Kerr Effect Study

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    The behavior of water molecules surrounding a protein can have an important bearing on its structure and function. Consequently, a great deal of attention has been focused on changes in the relaxation dynamics of water when it is located at the protein surface. Here we use the ultrafast optical Kerr effect to study the H-bond structure and dynamics of aqueous solutions of proteins. Measurements are made for three proteins as a function of concentration. We find that the water dynamics in the first solvation layer of the proteins are slowed by up to a factor of 8 in comparison to those in bulk water. The most marked slowdown was observed for the most hydrophilic protein studied, bovine serum albumin, whereas the most hydrophobic protein, trypsin, had a slightly smaller effect. The terahertz Raman spectra of these protein solutions resemble those of pure water up to 5 wt % of protein, above which a new feature appears at 80 cm–1, which is assigned to a bending of the protein amide chain

    From Teamchef Arminius to Hermann Junior: glocalised discourse about a national foundation myth

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    If for much of the nineteenth and twentieth centuries, the ‘Battle of the Teutoburg Forest’, fought in 9 CE between Roman armies and Germanic tribes, was predominantly a reference point for nationalist and chauvinist discourses in Germany, the first decade of the twenty-first century has seen attempts to link public remembrance with local/regional identities on the one hand and international/intercultural contact on the other. In the run up to and during the ‘anniversary year’ of 2009, German media, sports institutions and various other official institutions articulating tourist, economic and political interests attempted to create a new ‘glocalised’ version of the public memory of the Teutoburg battle. Combining methods of Cognitive Linguistics and Critical Discourse Analysis, the paper analyses the narrative and argumentative topoi employed in this re-orientation of public memory, with a special emphasis on hybrid, post-national identity-construction. Das zweitausendjĂ€hrige Gedenkjahr der „Schlacht im Teutoburger Wald“ im Jahr 2009 bot eine gĂŒnstige Gelegenheit, die bis in die zweite HĂ€lfte des 20. Jahrhunderts dominante Tradition nationalistisch–chauvinistischer Deutungen des Sieges von germanischen StĂ€mmen ĂŒber drei römische Legionen zu korrigieren und zu ĂŒberwinden. Der Aufsatz analysiert mit Hilfe diskurslinguistischer Methoden die Anstrengungen regionaler Institutionen und Medien, die nationale Vereinnahmung des historischen Gedenkens kritisch zu thematisieren sowie neue, zum eine lokal situierte, zum andern international orientierte Identifikationsangebote anzubieten. Die Analyse zeigt, dass solche „de-nationalisierten“ Identifikationsangebote zwar teilweise auch frĂŒher verwendet wurden, aber heutzutage rekontextualisiert und auf innovative Weise in den Vordergrund gestellt werden

    Genomic alterations associated with mutational signatures, DNA damage repair and chromatin remodeling pathways in cervical carcinoma

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    Despite recent advances in the prevention of cervical cancer, the disease remains a leading cause of cancer-related deaths in women worldwide. By applying the GISTIC2.0 and/or the MutSig2CV algorithms on 430 whole-exome-sequenced cervical carcinomas, we identified previously unreported significantly mutated genes (SMGs) (including MSN, GPX1, SPRED3, FAS, and KRT8), amplifications (including NFIA, GNL1, TGIF1, and WDR87) and deletions (including MIR562, PVRL1, and NTM). Subset analyses of 327 squamous cell carcinomas and 86 non-squamous cell carcinomas revealed previously unreported SMGs in BAP1 and IL28A, respectively. Distinctive copy number alterations related to tumors predominantly enriched for *CpG- and Tp*C mutations were observed. CD274, GRB2, KRAS, and EGFR were uniquely significantly amplified within the Tp*C-enriched tumors. A high frequency of aberrations within DNA damage repair and chromatin remodeling genes were detected. Facilitated by the large sample size derived from combining multiple datasets, this study reveals potential targets and prognostic markers for cervical cancer.publishedVersio
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