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1Latest Papers from Table of Contents or Articles in PressJ. Quick ; N. J. Loman ; S. Duraffour ; J. T. Simpson ; E. Severi ; L. Cowley ; J. A. Bore ; R. Koundouno ; G. Dudas ; A. Mikhail ; N. Ouedraogo ; B. Afrough ; A. Bah ; J. H. Baum ; B. Becker-Ziaja ; J. P. Boettcher ; M. Cabeza-Cabrerizo ; A. Camino-Sanchez ; L. L. Carter ; J. Doerrbecker ; T. Enkirch ; I. Garcia-Dorival ; N. Hetzelt ; J. Hinzmann ; T. Holm ; L. E. Kafetzopoulou ; M. Koropogui ; A. Kosgey ; E. Kuisma ; C. H. Logue ; A. Mazzarelli ; S. Meisel ; M. Mertens ; J. Michel ; D. Ngabo ; K. Nitzsche ; E. Pallasch ; L. V. Patrono ; J. Portmann ; J. G. Repits ; N. Y. Rickett ; A. Sachse ; K. Singethan ; I. Vitoriano ; R. L. Yemanaberhan ; E. G. Zekeng ; T. Racine ; A. Bello ; A. A. Sall ; O. Faye ; N. Magassouba ; C. V. Williams ; V. Amburgey ; L. Winona ; E. Davis ; J. Gerlach ; F. Washington ; V. Monteil ; M. Jourdain ; M. Bererd ; A. Camara ; H. Somlare ; M. Gerard ; G. Bado ; B. Baillet ; D. Delaune ; K. Y. Nebie ; A. Diarra ; Y. Savane ; R. B. Pallawo ; G. J. Gutierrez ; N. Milhano ; I. Roger ; C. J. Williams ; F. Yattara ; K. Lewandowski ; J. Taylor ; P. Rachwal ; D. J. Turner ; G. Pollakis ; J. A. Hiscox ; D. A. Matthews ; M. K. O'Shea ; A. M. Johnston ; D. Wilson ; E. Hutley ; E. Smit ; A. Di Caro ; R. Wolfel ; K. Stoecker ; E. Fleischmann ; M. Gabriel ; S. A. Weller ; L. Koivogui ; B. Diallo ; S. Keita ; A. Rambaut ; P. Formenty ; S. Gunther ; M. W. Carroll
Nature Publishing Group (NPG)
Published 2016Staff ViewPublication Date: 2016-02-04Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Aircraft ; Disease Outbreaks/statistics & numerical data ; Ebolavirus/classification/*genetics/pathogenicity ; *Epidemiological Monitoring ; Genome, Viral/*genetics ; Guinea/epidemiology ; Hemorrhagic Fever, Ebola/*epidemiology/*virology ; Humans ; Mutagenesis/genetics ; Mutation Rate ; Sequence Analysis, DNA/*instrumentation/*methods ; Time FactorsPublished by: -
2Articles: DFG German National LicensesStaff View
ISSN: 0037-7732Topics: SociologyNotes: BOOK REVIEWSURL: -
3Articles: DFG German National LicensesStaff View
ISSN: 1573-2959Keywords: chaos ; climate change ; complexity ; ecosystems ; prediction ; semi-stability ; sudden changeSource: Springer Online Journal Archives 1860-2000Topics: Energy, Environment Protection, Nuclear Power EngineeringNotes: Abstract Complex systems are characterizedby surprising switches to new behaviours. Evaluating and predicting these changes demands anunderstanding of the behaviour of the whole system. The combined ecosystem-climate system shows chaoticor pseudorandom behaviour, stochastic or trulyrandom behaviour, as well as simple bifurcation andsemi-stability. Semistability involves the suddenchange from a destabilized ’attractor‘ to a newstable attractor which may occur after an apparentlyunpredictable time delay. We present some recentresults for analyzing time series data and for usingsimulations of non-linear models to predict these changes.Type of Medium: Electronic ResourceURL: -
4FIS Bildung LiteraturdatenbankStaff View
Type of Medium: bookPublication Date: 1992Keywords: Erziehungsphilosophie ; Kritische PädagogikLanguage: English -
5FIS Bildung LiteraturdatenbankStaff View
Type of Medium: articlePublication Date: 1987Keywords: Erfahrung ; Berufserfahrung ; BerufspraktikumIn: Critical pedagogy and cultural power., South Hadley, Mass.: Bergin and Garvey (1987), S. 155-177Language: English -
6FIS Bildung LiteraturdatenbankStaff View
Type of Medium: articlePublication Date: 1986Keywords: Rollenverhalten ; Frau ; Diskriminierung ; Hochschule ; StudentinIn: Harvard educational review, Bd. 56 (1986) H. 4, S. 457-472, 0017-8055Language: EnglishNote: Literaturangaben 28 -
7FIS Bildung LiteraturdatenbankStaff View
Type of Medium: bookPublication Date: 2014Keywords: Museumspädagogik ; Motiv (Kunst) ; Ungerechtigkeit ; Rassismus ; AusstellungLanguage: EnglishNote: Literaturangaben -
8Articles: DFG German National LicensesStaff View
ISSN: 1600-0560Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Microscopically monitored excision for the treatment of skin cancer is becoming increasingly popular among dermatologists. One decision faced by beginning histographic surgeons involves the choice of apparatus for making the frozen sections. This paper compares the freezing microtome with the cryostat and gives details of the University of Iowa method, which employs the Slee© cryostat.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesTHOMSEN, ROBERT J. ; CEILLEY, ROGER I. ; ZUEHLKE, RICHARD L.
Oxford, UK : Blackwell Publishing Ltd
Published 1979Staff ViewISSN: 1600-0560Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: An 83-year-old man experienced abrupt onset of a solitary lesion of porokeratosis on his bald, actinically damaged scalp. The features in this case are unusual and represent another point in the broad spectrum of lesions characterized by the cornoid lamella of porokeratosis.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 1741-5446Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: EducationType of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 1365-2427Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: SUMMARY. Unlike previously studied lakes with prolonged winter ice and snow cover, Lake Paajarvi, southern Finland, has a high humus content and consequently differs in both the quantity and quality of light penetration into its waters. Moreover, the range of temperature fluctuation and the degree of development of thermal stratification are greater in Paajarvi, and this increased environmental heterogeneity apparently stimulates diversity in the phytoplankton community, especially in the seasonal succession of species. Differences in the photosynthetic capacity of algae from different depths in the water column were not great. This is attributed to the extremely shallow euphotic zone, algae circulating freely through the steep light gradient and sedimenting rapidly once they pass through the thermocline into the hypolimnion. It is suggested that ‘adaptation’ of phytoplankton to the great seasonal changes in irradiance is achieved largely by successive growths of different species in the community, and that the adaptations and vertical migrations by individual algal species, which have been reported from polar and high alpine lakes, may be of secondary importance in Pääjärvi. The species successions in Pääjärvi produce changes in the pigment content of algae similar to those reported from polar and high alpine lakes, confirming that change in pigmentation is an important mechanism in light adaptation, whether at community or individual level. Algal pigment content was particularly high at the end of the long period of winter ice cover, indicating a degree of adaptation to the prolonged low-light conditions, which produced the extremely high photosynthetic capacities measured at this time. However, phytoplankton production at any irradiance was primarily determined by biomass.Type of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesThackeray, Stephen J. ; Glen George, D. ; Jones, Roger I. ; Winfield, Ian J.
Oxford, UK : Blackwell Science Ltd
Published 2004Staff ViewISSN: 1365-2427Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: 1. Several studies have shown that wind-induced water movements have an important effect on the spatial distribution of crustacean zooplankton. However, few attempts have been made to quantify the effect of physical processes on these broad-scale patterns. Much of our understanding of this spatial structure has been based on the results of isolated surveys, which do not capture the dynamic nature of the pelagic environment.2. In this study, we have used a combination of high-speed sampling (at a spatial resolution of 240 m) and spatial data analysis to quantify the factors influencing the horizontal spatial structure of the Daphnia galeata population in Windermere.3. The results show that lake-wide circulation patterns, as indicated by water temperature, account for 29–47% of the basin-scale spatial variance in D. galeata abundance. However, these patterns are highly dynamic and change in response to the prevailing weather. This lack of temporal persistence means that the results of single-survey sampling campaigns must be interpreted with caution.Type of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesGrey, Jonathan ; Kelly, Andrew ; Ward, Susan ; Sommerwerk, Nike ; Jones, Roger I.
Oxford, UK : Blackwell Science Ltd
Published 2004Staff ViewISSN: 1365-2427Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: 1. We studied seasonal changes in the carbon and nitrogen stable isotope ratios of larval Chironomus anthracinus and C. plumosus from the profundal sediments of four contrasting lakes.2. Pronounced seasonal changes in both δ13C and δ15N values were evident in chironomid larvae of both species from two summer-stratified, eutrophic lakes: Esthwaite Water and Wyresdale Park. Changes were most marked in the larvae of C. plumosus and in larvae from greater depths. In contrast, neither C. anthracinus in summer-stratified but mesotrophic Schöhsee, nor C. plumosus in polymictic Großer Binnensee, showed marked seasonality in larval stable isotope ratios.3. The particularly strong 13C-depletion of larvae from the stratified, eutrophic lakes is attributed to a significant contribution of methane-derived carbon to their diets. Feeding by larvae on isotopically light methanotrophic bacteria appears to occur mainly when autumn overturn of the water column restores oxygenated conditions to the sediment surface. At this time both δ13C and δ15N values of larvae decreased sharply.4. Changes in the mean stable isotope ratio of the larval populations can also occur when larger, more isotopically light, larvae pupate and emigrate from the population to hatch as imagos. This effect can induce seasonal changes in larval isotope values even in lakes in which there is no evidence of a significant involvement of methane-derived carbon in their diets. Variations in emergence patterns between species and between lakes may generate differences in the seasonal pattern of change in stable isotope ratios in larval populations.5. Our results emphasise the importance of adequate seasonal sampling if stable isotope ratios are to be used as biomarkers to study the role of key groups, such as chironomid larvae, in the trophic structure of lakes.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 1365-2427Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: 1. The influence of humic substances on the association of free inorganic iron and phosphate with material of larger molecular weight was investigated in epilimnetic samples from two humus-rich lakes of contrasting ionic strength. After modification of the molecular weight distribution of the humic substances in the samples using dialysis and ultrafiltration, the molecular weight distribution of added radioisotopes ( 〈inlineGraphic alt="inline image" href="urn:x-wiley:00465070:FWB634:FWB_634_mu1" location="equation/FWB_634_mu1.gif" extraInfo="missing"/〉 Fe3+ and 〈inlineGraphic alt="inline image" href="urn:x-wiley:00465070:FWB634:FWB_634_mu2" location="equation/FWB_634_mu2.gif" extraInfo="missing"/〉 PO43−) was assessed using gel filtration chromatography. 2. The association of 〈inlineGraphic alt="inline image" href="urn:x-wiley:00465070:FWB634:FWB_634_mu3" location="equation/FWB_634_mu3.gif" extraInfo="missing"/〉 Fe3+ and 〈inlineGraphic alt="inline image" href="urn:x-wiley:00465070:FWB634:FWB_634_mu4" location="equation/FWB_634_mu4.gif" extraInfo="missing"/〉 PO43− with larger molecular weight fractions (〉50 000 and 10 000–50 000 Da) was not in general related to the quantity of humic substances of the same molecular weight in the samples. However, the proportions of 〈inlineGraphic alt="inline image" href="urn:x-wiley:00465070:FWB634:FWB_634_mu5" location="equation/FWB_634_mu5.gif" extraInfo="missing"/〉 Fe3+ and 〈inlineGraphic alt="inline image" href="urn:x-wiley:00465070:FWB634:FWB_634_mu6" location="equation/FWB_634_mu6.gif" extraInfo="missing"/〉 PO43− observed in higher molecular weight peaks were strongly correlated to the quantity of humic substances of the same molecular weight in (a) the 10 000–50 000 Da peak in the sample of low ionic strength at pH 5.5 and pH 7.0, and (b) the〉 50 000 Da peak in the sample of higher ionic strength at pH 4.0. 3. It was concluded that humic substances promote the association of 〈inlineGraphic alt="inline image" href="urn:x-wiley:00465070:FWB634:FWB_634_mu7" location="equation/FWB_634_mu7.gif" extraInfo="missing"/〉 Fe3+ and 〈inlineGraphic alt="inline image" href="urn:x-wiley:00465070:FWB634:FWB_634_mu8" location="equation/FWB_634_mu8.gif" extraInfo="missing"/〉 PO43− with higher molecular weight fractions primarily by acting as peptizing agents for inorganic colloids containing Fe and P. Association of 〈inlineGraphic alt="inline image" href="urn:x-wiley:00465070:FWB634:FWB_634_mu9" location="equation/FWB_634_mu9.gif" extraInfo="missing"/〉 Fe3+ and 〈inlineGraphic alt="inline image" href="urn:x-wiley:00465070:FWB634:FWB_634_mu10" location="equation/FWB_634_mu10.gif" extraInfo="missing"/〉 PO43− with material of higher molecular weight via the formation of humic substance-Fe3+–PO43− complexes was identified but only at specific pH and within specific molecular weight ranges for each of the epilimnetic lake water samples studied.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 1365-2427Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: 1. The relationship between epilithic algal communities and 17 environmental variables from 17 oligo- to eutrophic lakes in the English Lake District was explored using canonical correspondence analysis (CCA). Total phosphorus (TP) and calcium (Ca) concentration were the most important variables accounting for species distribution. 2. Weighted-averaging regression and calibration models with tolerance downweighting and classical deshrinking were developed to infer TP, Ca, dissolved inorganic carbon (DIC) and conductivity from the relative abundance of 138 epilithic algal taxa. 3. The ranges of the environmental variables covered by the models are 0.8-49.2 μg L−1 for TP, 2.2–13.0 mg L−1 for Ca, 0.5–8.6 mg L−1 for DIC and 38–124 μS cm−1 for conductivity. Within these limits the models can be used to infer chemical properties of lakes from epilithic communities in the English Lake District. 4. The major advantages of using transfer functions based on epilithic communities are the low logistic requirements and the integrative character of algal samples compared to direct point measurements of chemical parameters of the lakes.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1365-2427Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: 1. An overview is provided of the role of mixotrophic protists in plankton communities. Consideration of the importance of phagotrophy in the evolution of photosynthetic eucaryotes suggests that mixotrophy as a nutritional strategy can arise rather readily. 2. Mixotrophic protists actually present a spectrum of nutritional strategies. However, recognition of distinct groups of mixotrophs based on nutritional behaviour facilitates consideration of their functional role and of competitive interactions with other types of planktonic protists. 3. Consideration of the costs and benefits of mixotrophy as a nutritional strategy allows the development of several empirical predictions about the probable outcome of resource competition between mixotrophs and obligate phototrophs or phagotrophs. Existing results from laboratory and field experiments allow some of these predictions to be evaluated. 4. These results indicate that, under specified conditions, mixotrophs should represent an important link in the flux of materials through planktonic food webs. However, quantifying these fluxes remains a challenge for the future.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesGlass, Roger I. ; Bresee, Joseph S. ; Parashar, Umesh ; Miller, Mark ; Gentsch, Jon R.
[s.l.] : Nature Publishing Group
Published 1997Staff ViewISSN: 1546-170XSource: Nature Archives 1869 - 2009Topics: BiologyMedicineNotes: [Auszug] IN 1998, ON the 25th anniversary of the discovery of rotavirus, the medical community is likely to be delivered an extraordinary gift in the form of the first vaccine that is proven to protect against rotavirus diarrhea, a severe childhood disease. The product is a live, oral, quadrivalent rhesus ...Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 1551-2916Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPhysicsNotes: The stable ternary system H3PO4-Ca(OH)2-H2O has been established further by determining the equilibria among the acidic calcium phosphates. In particular, equilibria involving CaHPO4·2H2O, CaHPO4, Ca(H2PO4)2·H2O, and Ca(H2PO4)2·H2O have been established. In contrast to earlier opinions, Ca(H2PO4)2 is not a stable phase in this system at any temperature below 100°C. Ca(H2PO4)2 can be made only in boiling H3PO4 liquors at 130°C or by dehydration of Ca(H2PO4)2·H2O. Ca(H2PO4)2 converts to Ca(H2PO4)2H2O upon equilibration in calcium phosphate solutions. A liquid region seems to exist between H3PO4 and Ca(H2PO4)2·H2O. Therefore, the related invariant point between H3PO4 and Ca(H2PO4)2·H2O does not exist at 25°C. The most soluble point lies between Ca(H2PO4)2·H2O and H3PO4. The invariant point involving the solids Ca(H2PO4)2·H2O and CaHPO4 is outside its compatibility triangle, and Ca(H2PO4)2·H2O dissolves incongruently. Furthermore, the compatibility line between H2O and Ca(H2PO4)2·H2O intersects the solubility curve of hydroxyapatite, suggesting Ca(H2PO4)2H2O dissolution can form hydroxyapatite initially. The dissolution of Ca(H2PO4)2·H2O in deionized water forms CaHPO4·2H2O, having a very-thin-plate morphology below 55°C, and CaHPO4, having a rectangular-block morphology above 55°C. Over time CaHPO4·2H2O converts to CaHPO4 at temperatures above 36°C. The data obtained in this study have been combined with published data to construct a more complete H3PO4–Ca(OH)2-H2O diagram at 25°C.Type of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesStaff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] These findings have led us to consider a new mechanism of bone mineralization, cyclical in nature, and which can be described by balanced chemical equations as follows (1) (2) (3) (4) In the mechanism we propose, ATP reacts with calcium ion to form a calcium complex which, on hydrolysis, first ...Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] TiO2 powders, which contain adsorbed water, show significantly greater photochemical reactivity towards oxygen than specimens which have been dehydroxylated. It has been suggested3 that the adsorbed hydroxyl groups, OHds, act as traps for the positive holes, hvb, which are formed in the valence ...Type of Medium: Electronic ResourceURL: