bluuebunny/crossref_metadata_2025_split huggingface dataset:
Brahms Rhapsodizing: The Alto Rhapsody and Its Expressive Double
Authors: Reynolds Christopher 
Published: May 2012

This article presents two new hypotheses about Brahms's Alto Rhapsody, op. 53 (1869), a work Brahms referred to as his “bridal song.” Consulting a range of nineteenth-century sources, I explore the implications of rhapsody as a genre for this composition and argue that they include the classical convention of rhapsody as a poetic cento, or Stoppelgedicht. Centos, poems made up of quotations from earlier works, were often written for important events such as weddings; examples include the Cento nuptialis, which was discussed, among others, by August Wilhelm Ambros in his Geschichte der Musik (1864). Brahms's musical sources include Wagner's Tristan und Isolde and several works based on Goethe's Faust, including, especially, Liszt's Faust–Symphonie.
My second hypothesis is that Brahms likely composed his Schicksalslied, op. 54, as a companion piece to the Alto Rhapsody. The two pieces respond to each other through several shared musical and textual correspondences. They deal in paired ways with the division between mortal suffering and otherworldly grace, and they embrace conventions and characters from antiquity. Invoking a concept proposed by Lawrence Kramer, I interpret these works as “expressive doubles” of each other. My investigation suggests that Brahms probably began work on the Rhapsody at least a year earlier than previously thought.
Combination of O3/H2O2 and UV for multiple barrier micropollutant treatment and bromate formation control - an economic attractive option
Authors: Scheideler Jens , Lekkerkerker-Teunissen Karin , Knol Ton , Ried Achim , Verberk Jasper , van Dijk Hans 
Published: May 2012

Advanced Oxidation Processes (AOP) are known as an effective treatment barrier for micropollutants. Well known AOP combinations are UV/H2O2 and O3/H2O2. This paper will present a more detailed view on how to use the different options combining UV; ozone and H2O2. The focus of this investigation is on treatment effects (reduction of specific contaminats), water matrix, energy consumption and cost calculation (CAPEX, OPEX). The presented data are extracted from extended pilot trials carried out at DUNEA in 2009 and 2010.
Dunea (The Netherlands,The Hague) produces drinking water from the Meuse River, which contains a variety of organic micropollutants as a result from upstream activity. Dunea is performing research to extend the current multiple barrier treatment (e.g. pre-treatment, artificial recharge and recovery (ARR), post-treatment) with an advanced oxidation processes (AOP), situated at the pre-treatment location in Bergambacht, before ARR. The degradation of organic micropollutants as a result of advanced oxidation using different combinations of hydrogen peroxide, ozone, low pressure (LP) UV lamps has been assessed by means of pilot-scale (5 m3/h) experiments. The influent was pre-treated river water, with an yearly average UV-transmission of 80% and a DOC concentration of 4 mg/L.The peroxide doses were varied as 0, 5 and 10 ppm, the ozone doses were varied as 1, 2 and 3 g ozone/m3. The UV doses were varied between 300 and 650 mJ/cm2. The installed power for the LP reactor was 0.26 kWh/m3. Atrazine, bromacil, ibuprofen and NDMA were spiked (10-20 µg/L) and used as model compounds.
Bromacil was completely (&gt;99%) removed by ozone/peroxide. Atrazine and ibuprofen were good (58% and 85% respectively) removed by O3/H2O2 and NDMA was not (9%) removed by this technique, whereas NDMA showed good (82%) removal by UV/H2O2. Atrazine, bromacil and ibuprofen were degraded by UV/H2O2 at 53, 46 and 59 %, respectively. In addition also combined AOP was tested; spiked water was treated by O3/H2O2 first and let over the LP-UV reactor directly afterwards. All four compounds showed highest degradation during combined AOP treatment. With this combined AOP, lower ozone dose and lower UV dose result in comparable degradation compared to single AOP treatment. For all these techniques a detailed capital expenditure operational expenditure (CAPEX / OPEX) evaluation was carried out based on a daily water flow of 240,000 m3/d. This evaluation resulted in the finding, that the combined AOP is the most economical solution with the best treatment result. Other advantages of the combined AOP are limited by-product formation, especially bromate, and a future barrier against OMPs encompassing a broad spectrum of properties.
How to Measure Specific Deposit Washout and Backwash Efficiency of Granular Filters
Authors: van Staden S. J. , Haarhoff J. 
Published: May 2012

Practical experience shows that water treatment filters develop problems over time due to the routine running of the filter, including backwashing. There are difficulties in maintaining filters in good condition, given the eutrophic state of many South African raw waters, high water temperatures and the development of difficult-to-remove biofilm as a result. Such difficulties are often related to deposits accumulated on the filter media and it is, therefore, expected that the backwash system should be good enough to ensure that the filter is kept clean in the long run. This paper deals with a fairly simple operational option to significantly improve backwash efficiency at treatment plants where air and water are used consecutively.
The paper describes methods used and typical results obtained in the testing of the quantitative benefits of multiple wash cycles. Multiple washing shows great promise for improving backwash efficiency, with an average of an additional 40% to 50% of the solids that would have been washed out with a single wash, removed by a second wash. Furthermore, third and even fourth washes continue to remove additional dirt from the filter. Multiple washing, therefore, may be a useful tool for the effective rehabilitation of a filter, as well as for routine operation procedures.
Nanofiltration selection for NOM removal: pilot and full-scale operation
Authors: Durand-Bourlier Laurence , Tinghir Amandine , Masereel Philippe , Baig Sylvie 
Published: May 2012

Belgium is increasingly encountering drinking water problems because of resource scarcity and because of the quality of surface water from rivers and canal, which are often highly degraded. High organic matter concentrations are found and treated water has non-satisfying organic contents. This has a direct impact on THM formation and bacteria regrowth in the supply network. With more and more stringent regulations, organic matters concentration level in drinking water must be reduced. Nanofiltration (NF) is a suitable method for organic matter removal with reduction efficiency sometimes higher than 90 % (Orecki et al. 2004). It can be more effective than conventional technologies like activated carbon adsorption (Coté et al. 1996). This is a reason for upgrading old treatment plants by using NF treatment as a polishing step.
Two drinking water treatment plants located in Eupen and La Gileppe in Belgium needed to be upgraded. These both plants treat surface water from dams and are equipped with a conventional clarification. A pilot study was carried out to compare different treatment files to remove Total Organic Carbon (TOC) and Biologically Degradable Organic Carbon (BDOC). NF process has been finally chosen.
The aim of the paper is to report and discuss data supporting the choice of NF from pilot scale study and next full-scale performances of both upgraded drinking water treatment plants. The whole demonstrates the interest of NF as a suitable technology organic matter removal.
Energy efficiency in the water industry, a Global Research Project
Authors: Brandt Malcolm , Middleton Roger , Wheale Gordon , Schulting Frans 
Published: May 2012

After manpower, energy is the highest operating cost item for most water and wastewater companies. Over the last decade, energy consumption by the sector has increased considerably as a consequence of the implementation of new technologies to meet new potable water and effluent treatment quality standards. The price of energy has also increased substantially in the same period.
These increases will be compounded by the need to meet future changes to regulations and standards that will require additional energy intensive processes to achieve more exacting requirements. High energy consumption will affect the water industry world wide and is inextricably linked to the issue of Climate Change.
This international research project has focused on identifying current energy efficient best practices and technologies in the efficient design and operation of water industry assets for the whole water cycle from abstraction to discharge, including water treatment and distribution, wastewater conveyance and treatment; water reuse; sludge treatment and disposal and water conservation. Opportunities have also been identified for hydraulic energy recovery from turbines and generation from waste and sludge through CHP technology.
The study output is a Compendium of global best practices covering the water cycle matrix and includes variations between regions and continents, large urban and small rural systems and complex high and simple low technical solutions. International case studies are used to illustrate best practices.
On behalf of Global Water Research Coalition (GWRC) partners world-wide as represented by four Continental Coordinators in the US, Europe, Singapore and Australasia, and South Africa, the project was managed by UK Water Industry Research (UKWIR).
This presentation will give the background to the project and use case studies to illustrate the study findings and future opportunities to help deliver both incremental improvements in energy efficiency through optimisation of existing assets and operations and more substantial improvements in energy efficiency from the adoption of novel but proven technologies.
Fat, oil and grease - Sewer contamination prevention strategies and double-dosage concept for fat traps and pressure mains
Authors: Franke Wolfram , Ettl Marina , Roldan Daniel , Kuhn Guido , Langholm Anne Mette , Amar Mathieu 
Published: May 2012

Disposal of fat, oil and grease (FOG) in sewer systems cause blockages, fatal errors of pumping stations, increased maintenance, odours, hydrogen sulphide (H2S) emissions and corrosion. Hence, solutions to prevent FOG disposals are desirable. Challenges are prevention of FOG contamination of sewer systems and removal of FOG disposals.
A survey and lab as well as full scale tests were performed. In the first place fat traps and grease inceptors should be installed to prevent FOG contamination what is documented as being very effective. A case study shows that the operation of fat traps may indeed produce further problems, especially H2S emissions, what demands an additional treatment.
Removal of FOG disposals can be handled by applying enzymes to the affected sewer network. It was found that enzymes are preferable towards surfactants to remove FOG disposals. It appears to be a solution to have one dosing site that is equipped with separately controlled dosing pumps for conditioners for H2S removal as well as FOG removal.
Preliminary research on efficiency of organic substances removal from wastewater in selected constructed wetlands
Authors: Pawęska K. , Malczewska B. 
Published: May 2012

Protection of ground water is one of basic purposes of suitable development strategy. The technical infrastructure is one of examples of this strategy realization. However, in rural regions, that are characterized by housing dispersion, it is difficult to construct conventional sewage system. This problem has to do with violent changes of wastewater discharge and effluent concentration as well as economic resources. Constructed wetlands could be a good solution for rural regions. They enable waste treatment and protecting receiving water. Constructed wetlands work like a marsh and they act as biofilters removing environmental effluents from wastewater. They can be a solution for rural regions and allow rational and inexpensive method of wastewater treatment.
The main purpose of this research was to determine efficiency of decontamination of organic pollution, expressed as BOD5 and COD. The data was collected from constructed wetlands in Kletno and Brzezno in order to extract design criteria for BOD5 and COD removal. The research was executed on two object assigned to popular touristic places.
Constructed wetlands keep high pollutant removal efficiency on the same level all year round. The research was conducted in 2008. Constructed wetlands do not ensure high efficiency of treatment. Unsuitable exploitation is the primary reason for decreasing efficiency. Proper exploitation of settler (septic tanks) in constructed wetlands is responsible for high wastewater treatment efficiency.
Bounded region with closed time-like curves in T-dual pp-waves backgrounds
Authors: Gusin Paweł 
Published: May 2012

Abstract
In the 10-dimensional pp-waves background we have found using T-duality a 4-dimensional space-time in which closed time-like curves appear in the region bounded by two coaxial elliptic cylinders. This 4-dimensional space-time is similar to the Gödel-type space-time only in this region. Outside of this region the causal pathology does not appear.
Pelecitus tercostatus (Molin, 1960) (Nematoda, Onchocercidae) in Amazona vinacea (Aves, Psittaciformes) from Argentina: morphological details and clinical findings
Authors: Diaz Julia , Nucci Dante , Falzone Martín , Demergassi Natalia , Fernanda Lois M. , Zalazar Raúl , Navone Graciela , Gachen Gustavo 
Published: May 2012

AbstractPelecitus tercostatus (Molin, 1860) (Onchocercidae, Dirofilariinae) was found in the leg of a Vinaceous-breasted Parrot Amazona vinacea (Aves, Psittaciformes) from Misiones, Argentina. The present report enlarges the host distribution of the species and represents the first record of any nematode in A. vinacea. The macroscopic lesions produced in the bird are also described.
Gyrodactylus malalai sp. nov. (Monogenea, Gyrodactylidae) from Nile tilapia, Oreochromis niloticus (L.) and Redbelly tilapia, Tilapia zillii (Gervais) (Teleostei, Cichlidae) in the Lake Turkana, Kenya
Authors: Přikrylová Iva , Radim Blažek , Gelnar Milan 
Published: May 2012

AbstractGyrodactylus malalai sp. nov. is described from the fin surface of cichlid fishes Oreochromis niloticus (L.) and Tilapia zillii (Gervais) caught in Lake Turkana (Kenya). The new species morphologically resembles Gyrodactylus nyanzae Paperna, 1973, but can be readily distinguished by the shape of the marginal hook sickles and the size of its hamuli. The sequence data of rDNA spanning partial 18S, internal transcribe spacer 1 and 2 and the 5.8S gene is unique within GenBank. Genetically, as most similar Gyrodactylus ergensi Přikrylová, Matějusová, Musilová et Gelnar, 2009 was found (97.5%). Moreover, a specimen of G. cichlidarum from O. niloticus, and a specimen G. ergensi from Sarotherodon galilaeus (L.) were collected during sampling in Kenya. Likewise, additional sampling of O. niloticus from the Blue Nile in Sudan revealed the presence of the newly described species. These findings represent the first records of gyrodactylids in both African countries.
Phylogenic analysis of Chinese Leishmania isolates based on small subunit ribosomal RNA (SSU rRNA) and 7 spliced leader RNA (7SL RNA)
Authors: Guan Wang , Cao De-Ping , sun Ke , Xu Jia-nan , Zhang Jun-rong , Chen Da-Li , Chen Jian-Ping 
Published: May 2012

AbstractThe leishmaniases are zoonotic diseases caused by protozoan parasites of the genus Leishmania. Leishmaniases are still endemic in China, especially in the west and northwest froniter regions. To revalue the preliminary phylogenetic results of Chinese Leishmania isolates, we amplified partial fragment of small subunit ribosomal RNA (SSU rRNA) and 7 spliced leader RNA (7SL RNA), then tested the phylogenetic relationships among Chinese Leishmania isolates and their relatives by analyzing SSU rRNA gene sequences and 7SL RNA gene sequences. 19 SSU RNA sequences and 9 7SL RNA sequences were obtained in our study, then analyzed with 42 SSU RNA sequences and 32 7SL RNA sequences retrieved from Genbank, respectively. In the Bayesian analysis of the SSU RNA gene, the isolate MHOM/CN/93/GS7 and the isolate IPHL/CN/77/XJ771 are members of Leishmania donovani complex, while the isolate MHOM/CN/84/JS1 clustered with Leishmania tropica. The other 11 Chinese Leishmania isolates (MHOM/CN/90/WC, MCAN/CN/90/SC11, MHOM/CN/80/XJ801, MHOM/CN/85/GS4, MHOM/CN/84/SD1, MCAN/CN/86/SC7, MHOM/CN/54/#3, MHOM/CN/83/GS2, MHOM/CN/90/SC10H2, MHOM/CN/89/GS6 and MHOM/CN/ 89/GS5) form an unclassified group, defined as Leishmania sp., and the most relative species to this group is L. tarentolae. In the Bayesian analysis of the 7SL RNA gene, 9 Chinese Leishmania isolates also formed an unclassified group with L. tarentolae, including canine isolate 10, MHOM/CN/85/GS4, MHOM/CN/84/SD1, MCAN/CN/86/SC7, MHOM/CN/54/#3, MHOM/ CN/83/GS2, MHOM/CN/90/SC10H2, MHOM/CN/89/GS6 and MHOM/CN/89/GS5. We concluded that: (1) Chinese Leishmania isolates are non-monophyly group; (2) an unclassified group may exist in China, and the most relative species to this group is L. tarentolae; (3) MHOM/CN/84/JS1, which was previously assigned as L. donovani, was most genetically related to L. tropica strain MHOM/SU/74/K27.
Presence of Stenoponia tripectinata (Tiraboschi, 1902) (Siphonaptera, Ctenophtalmidae) in murine (Rodentia) from the Canary Islands
Authors: Vicente Santiago , Gómez López Maria 
Published: May 2012

AbstractThis article reports the geographical and host distribution of the flea Stenoponia tripectinata on the Canary Islands. S. tripectinata is widely distributed throughout the Mediterranean and North Africa as a parasite of Muridae rodents. To date, Gran Canaria is the only island of the archipelago where S. tripectinata had been found. In this report, S. tripectinata has appeared parasitizing 116 specimens of Mus musculus out of a total of 660, and only 2 Rattus rattus of 215 captured. All the trapped Muridae hosts found to be parasitized by S. tripectinata came from humid biotopes. The results showed that S. tripectinata is present on all the western Canary Islands and on one of the eastern islands, Gran Canaria, the only island already reported. The detection of S. tripectinata on El Hierro, La Palma, La Gomera and Tenerife represents the first records of this flea species on those Canary Islands.
The dynamics of professional identity of university teachers: reflecting on the ideal university teacher
Authors: Haamer Anu , Lepp Liina , Reva Elina 
Published: May 2012

The dynamics of professional identity of university teachers: reflecting on the ideal university teacher
Current paper investigates development of professional identity of university teachers, observed through reflective exercises which enabled participants' to focus on their perception of the ideal university teacher. Images of the ideal university teacher were studied from two aspects: first - before the participants started teaching, and second - after they had been teaching for some time. This paper focused on how images of the ideal university teacher have changed over time, and discussed the reasons that brought about changes. There is a tendency that ideals are adapted in accordance with teaching experience. Ideals are regarded as unstable phenomena, influenced by the surrounding environment. Current paper made use of a qualitative design of reflective writing exercises and focus group interviews. The sample comprised an aggregate of 42 participants, university teachers and PhD students, and 4 focus groups. Interviews were analyzed using qualitative content analysis. The study shows that after some teaching experience, didactic knowledge and communicative skills come to the forefront of the ideal university teacher identity. The study opens the way for further and deeper discussion of images of an ideal university teacher.
Repeated Measurements of Arm Joint Passive Range of Motion After Stroke: Interobserver Reliability and Sources of Variation
Authors: de Jong Lex D. , Dijkstra Pieter U. , Stewart Roy E. , Postema Klaas 
Published: May 2012

BackgroundGoniometric measurements of hemiplegic arm joints must be reliable to draw proper clinical and scientific conclusions. Previous reliability studies were cross-sectional and based on small samples. Knowledge about the contributions of sources of variation to these measurement results is lacking.ObjectiveThe aims of this study were to determine the interobserver reliability of measurements of passive range of motion (PROM) over time, explore sources of variation associated with these measurement results, and generate smallest detectable differences for clinical decision making.DesignThis investigation was a measurement-focused study with a longitudinal design, nested within a 2-arm randomized controlled trial.MethodsTwo trained physical therapists assessed 7 arm movements at baseline and after 4, 8, and 20 weeks in 48 people with subacute stroke using a standardized protocol. One physical therapist performed the passive movement, and the other read the hydrogoniometer. The therapists then switched roles. The relative contributions of several sources of variation to error variance were explored with analysis of variance.ResultsInterobserver reliability coefficients ranged from .89 to .97. The PROM measurements were influenced by error variance ranging from 31% to 50%. The participant × time interaction made the largest contribution to error variance, ranging from 59% to 81%. Smallest detectable differences were 6 to 22 degrees and were largest for shoulder movements.LimitationsVerification of shoulder pain and hypertonia as sources of error variance led to a substantial number of unstable variance components, necessitating a simpler analysis.ConclusionsThe assessment of PROM with a standardized protocol, a hydrogoniometer, and 2 trained physical therapists yielded high interobserver reliability indexes for all arm movements. Error variance made a large contribution to the variation in measurement results. The resulting smallest detectable differences can be used to interpret future hemiplegic arm PROM measurements with more confidence.