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  • 1
    Monograph available for loan
    Monograph available for loan
    Environment, biodiversity, and agricultural change in West Africa : Perspectives from Ghana (1996)
    Tokyo : United Nations University Press
    Details Availability
    Call number: PIK W 023-96-0498
    Type of Medium: Monograph available for loan
    Pages: 140 p.
    ISBN: 9280809644
    Series Statement: UNUP 964
    Branch Library: PIK Library
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  • 2
    Electronic Resource
    Electronic Resource
    Is there a positron mobility edge in gaseous helium?
    Amsterdam : Elsevier
    Solid State Communications 34 (1980), S. 773-776 
    Details
    ISSN: 0038-1098
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0038-1098(80)90912-6
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Analysis of Weather-Type-Induced Soil Erosion in Cultivated and Poorly Managed Abandoned Sloping Vineyards in the Axarquía Region (Málaga, Spain) (2019)
    Sage Publications
    Details
    Publication Date: 2019-01-01
    Electronic ISSN: 1178-6221
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Sage Publications
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  • 4
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    Identification of the Optimum Rain Gauge Network Density for Hydrological Modelling Based on Radar Rainfall Analysis (2020)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2020-07-03
    Description: Rain gauges continue to be sources of rainfall data despite progress made in precipitation measurements using radar and satellite technology. There has been some work done on assessing the optimum rain gauge network density required for hydrological modelling, but without consensus. This paper contributes to the identification of the optimum rain gauge network density, using scaling laws and bias-corrected 1 km × 1 km grid radar rainfall records, covering an area of 28,371 km2 that hosts 315 rain gauges in south-east Queensland, Australia. Varying numbers of radar pixels (rain gauges) were repeatedly sampled using a unique stratified sampling technique. For each set of rainfall sampled data, a two-dimensional correlogram was developed from the normal scores obtained through quantile-quantile transformation for ordinary kriging which is a stochastic interpolation. Leave-one-out cross validation was carried out, and the simulated quantiles were evaluated using the performance statistics of root-mean-square-error and mean-absolute-bias, as well as their rates of change. A break in the scaling of the plots of these performance statistics against the number of rain gauges was used to infer the optimum rain gauge network density. The optimum rain gauge network density varied from 14 km2/gauge to 38 km2/gauge, with an average of 25 km2/gauge.
    Electronic ISSN: 2073-4441
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Molecular Diversity Preservation International
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  • 5
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    IJERPH, Vol. 16, Pages 2783: Children Exposure-Related Behavior Patterns and Risk Perception Associated with Recreational Beach Use (2019)
    MDPI
    Details
    Publication Date: 2019
    Description: Background: Oil spill chemicals (OSCs) result not only from the crude oil components but also from dispersants used in the clean-up activities, where some may result in adverse health effects under certain exposure and dosage conditions. One of the main populations of concern for exposure to OSCs are children, who are frequent beach users. Activities such as ingestion of and digging in sand can increase dermal and ingestion exposure. Longer times spent at the beach can also increase exposures for all routes. Objectives: The Beach Exposure and Child Health Study (BEaCHeS) was initiated to evaluate the risk of exposure to children from oil contaminants. Reported here are results for surveys collected, as a part of the project, to address exposure-related behavior patterns and risk perception for parents or guardians who visit the beach. Methods: Over 400 parental surveys were collected at four beaches, two in Miami and two in Texas, to evaluate children’s exposure related activities. Surveys consisted of three general sections: demographics, exposure, and risk perception. Surveys were analyzed in REDcap and Stata to evaluate demographic and regional differences on activities related to beach behavior and potential exposures to oil contaminants (e.g., how much time spent on beach, cleaning habits following beach activities). The statistical analysis included the mean and standard errors, along with regressions to evaluate associations between parameters. Results: Overall, the data showed high variability in how children play on the beach, influenced more by age and less by gender. Variations were also seen in certain variables by beach region (e.g., hygiene practices). By race, variations were seen in income, distance of travel to beach, and preferred method of communication for beach warning. Other important findings are reflected in the article. Discussion: The data presented here may prove useful for those evaluating children exposures to a variety of contaminants, chemical, or bacterial in origin. In addition, coastal managers may find the risk perception and general behaviors useful for planning and maintenance of beach areas.
    Print ISSN: 1661-7827
    Electronic ISSN: 1660-4601
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Published by MDPI
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  • 6
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    Copula-based daily rainfall disaggregation model (2011)
    Wiley
    Details
    Publication Date: 2011-07-20
    Description: A daily rainfall disaggregation model, which uses a copula to model the dependence structure between total depth, total duration of wet periods, and the maximum proportional depth of a wet period, is presented. The wet(1)-dry(0) binary sequence is modeled by the nonrandomized Bartlett-Lewis model with diurnal effect incorporated before superimposing the AR(1) depth process submodel. Unlike previous studies, the model is structured such that all wet day data available are considered in the analysis, without the need to discard any good quality daily data embedded in a month having some missing data. This increased the data size, thus improving the modeling process. Further, the daily data are classified according to the total duration of wet periods duration within the day. In this way a large proportion of the model parameters become seasonal invariant, the overriding factor being the total duration of wet periods. The potential of the developed model has been demonstrated by disaggregating both the data set used in developing the model parameters and also a 12 year continuous rainfall data set not used in the model parameterization. Gross rainfall statistics of several aggregation levels down to 6 min have been very well reproduced by the disaggregation model. The copula dependence structure and the variation of the depth process submodel parameters with the total duration of wet periods are also very well captured by the presented model.
    Print ISSN: 0043-1397
    Electronic ISSN: 1944-7973
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 7
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    IJGI, Vol. 7, Pages 461: Combining the Stock Unearthing Method and Structure-from-Motion Photogrammetry for a Gapless Estimation of Soil Mobilisation in Vineyards (2018)
    MDPI
    Details
    Publication Date: 2018
    Description: In vineyards, especially on steep slopes like the Ruwer-Mosel Valley, Germany, soil erosion is a well-known environmental problem. Unfortunately, some enterprises and farmers are not aware of how much soil is being lost and the long-term negative impacts of soil erosion. The non-invasive technique of the stock unearthing method (SUM) can be used for a quick assessment of soil erosion in vineyards. SUM uses the graft union as a reference elevation for soil surface changes since the time of plantation commencement, which is modelled with the help of a geographic information system. A shortcoming of SUM is that the areas between the pair-vine cross sections are not surveyed, hence it is not accurate enough to identify erosion hot-spots. A structure-from-motion (SfM) photogrammetric technique is adopted to complement SUM to fill this data gap. Combining SUM (only measuring the graft unions) and SfM techniques could lead to an improved, easy and low-cost method with a higher accuracy for estimation of soil erosion based on interpolation by projection, and contact and gapless measuring. Thus, the main aim of this paper was to map the current soil surface level and to improve the accuracy of estimation of long-term soil mobilisation rates in vineyards. To achieve this goal, the TEPHOS (TErrestrial PHOtogrammetric Scanner), a static five camera array, was developed on a 20 m2 plot located in a steeply sloping vineyard of the Ruwer-Mosel Valley, Trier, Germany. A total soil mobilisation of 0.52 m3 (9.14 Mg ha yr−1) with soil surface level differences in excess of 30 cm in the 40 years since plantation commencement were recorded. Further research is, however, needed to reduce the number of photos used for the point cloud without loss of accuracy. This method can be useful for the observation of the impacts of other factors in vineyards, such as tillage erosion, runoff pathway detection or the trampling effect on soil erosion in vineyards.
    Electronic ISSN: 2220-9964
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Published by MDPI on behalf of International Society for Photogrammetry and Remote Sensing (ISPRS).
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  • 8
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    Validated RP-HPLC method for simultaneous determination and quantification of chlorpheniramine maleate, paracetamol and caffeine in tablet formulation (2016)
    SpringerOpen
    Details
    Publication Date: 2016-05-16
    Description: Chlorpheniramine maleate–paracetamol–caffeine tablet formulation is one of the common over-the-counter drugs used for the treatment of cold and cough. A reversed-phase high-performance liquid-chromatography me...
    Electronic ISSN: 2193-1801
    Topics: Natural Sciences in General
    Published by SpringerOpen
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  • 9
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    IJERPH, Vol. 15, Pages 759: Cardiovascular-Related Outcomes in U.S. Adults Exposed to Lead (2018)
    MDPI Publishing
    Details
    Publication Date: 2018-04-16
    Description: IJERPH, Vol. 15, Pages 759: Cardiovascular-Related Outcomes in U.S. Adults Exposed to Lead International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15040759 Authors: Emmanuel Obeng-Gyasi Rodrigo Armijos M. Weigel Gabriel Filippelli M. Sayegh Cardiovascular-related clinical markers were evaluated in this cross-sectional study of United States adults (aged ≥ 20) exposed to lead via the National Health and Nutrition Examination Survey 2007–2008 and the 2009–2010 datasets. In four quartiles of exposure—0–2 μg/dL, 2–5 μg/dL, 5–10 μg/dL, and 10 μg/dL and over, clinical and anthropometric markers were evaluated—to examine how the markers manifested in the quartiles. Associations were determined via linear regression. Finally, clinical makers, and how they manifested between exposed and less-exposed occupations, were explored in addition to how duration of exposure altered these clinical markers. In regression analysis, Diastolic Blood Pressure (DBP) and high-density lipoprotein (HDL) cholesterol, were significantly associated with blood lead level (BLL). In the occupational analysis, Systolic Blood Pressure (SBP), DBP, C-reactive protein (CRP), triglycerides, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, showed differences between populations in the exposed and less-exposed occupations. Regarding Agriculture, Forestry & Fishing, the duration of exposure altered SBP, CRP, and LDL cholesterol. With mining, the duration of exposure altered SBP, DBP, triglycerides, and HDL cholesterol, whereas in construction, the duration in occupation altered SBP, triglycerides, and CRP. In conclusion, lead exposure has a profound effect on the cardiovascular system, with potentially adverse outcomes existing at all exposure levels.
    Print ISSN: 1661-7827
    Electronic ISSN: 1660-4601
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Published by MDPI Publishing
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  • 10
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    Environments, Vol. 5, Pages 46: Hepatobiliary-Related Outcomes in US Adults Exposed to Lead (2018)
    MDPI
    Details
    Publication Date: 2018-04-01
    Description: Environments, Vol. 5, Pages 46: Hepatobiliary-Related Outcomes in US Adults Exposed to Lead Environments doi: 10.3390/environments5040046 Authors: Emmanuel Obeng-Gyasi Rodrigo Armijos M. Weigel Gabriel Filippelli M. Sayegh The purpose of this cross-sectional study was to investigate hepatobiliary-related clinical markers in Unites States adults (aged ≥ 20) exposed to lead using the National Health and Nutrition Examination Survey (NHANES) 2007–2008 and 2009–2010 datasets. Clinical markers and occupation were evaluated in 4 quartiles of exposure—0–2 μg/dL, 2–5 μg/dL, 5–10 μg/dL, and 10 μg/dL and over—to examine how the markers and various occupations manifested in the quartiles. Linear regression determined associations, and binary logistic regression predicted the likelihood of elevated clinical makers using binary degrees of exposure set at (2 μg/dL, 5 μg/dL, and 10 μg/dL). Clinical makers, and how they manifested between exposed and less-exposed occupations, were explored in addition to how duration of exposure altered these clinical markers. In regression analysis, Gamma-Glutamyl Transferase (GGT), total bilirubin, and Alkaline Phosphatase (ALP) were positively and significantly associated with Blood lead level (BLL). Using binary logistic regression models, at the binary 2 μg/dL level ALP, and GGT were more likely to be elevated in those exposed. At 5 μg/dL level, it was ALP and GGT that were more likely to be elevated in those exposed whereas at 10 μg/dL level, it was GGT that were more likely to be elevated in those exposed. In the occupational analysis, Aspartate Aminotransferase (AST), Alanine Aminotransferase (ALT), GGT, and ALP showed differences between populations in the exposed and less-exposed occupations. Regarding Agriculture, Forestry and Fishing, duration of exposure altered AST, ALP, and total bilirubin significantly (p < 0.05) while ALT and GGT were altered moderately significantly (p < 0.10). With mining, duration of exposure altered AST and GGT moderately significantly, whereas in construction duration in occupation altered AST, and GGT significantly, and total bilirubin moderately significantly. The study findings are evidence of occupational exposure to lead playing a significant role in initiating and promoting adverse hepatobiliary clinical outcomes in United States adults.
    Electronic ISSN: 2076-3298
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by MDPI
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