Die Veränderung von Richtwertmieten in Wien zwischen 2002 und 2008

Die Arbeit beschäftigt sich mit dem Vergleich der Entwicklung der Richtwertmieten in Wien zwischen den Jahren 2002 und 2008. Zunächst wird in einem theoretischen Überblick die Entwicklung der gesetzlichen Grundlagen bezüglich des Mietrechtes gegeben. Der empirische Teil beschäftigt sich mit einer Studie zur Höhe der Richtwertmieten in Wien aus dem Jahr 2002 und deren eigenständige Wiederholung 2008. Somit konnte die Höhe der Richtwertmieten, deren räumliche Verteilung und Unterschiede der Verteilung in Wien erarbeitet werden. Diese Arbeit kam zum Ergebnis, dass die Richtwertmieten in Wien grundsätzlich überdurchschnittlich stark angestiegen sind, vor allem im Zentrum und den Inneren Bezirken der Stadt. Dies kann mehrere Gründe haben. Zunächst muss auf das ökonomische Modell des Angebotes und der Nachfrage eingegangen werden. Da das Mietangebot in Wien in der Zeit zwischen 2002 und 2008, bei steigender Nachfrage gesunken ist, konten die Wohnungen teurer werden. Aber auch Aktionen, wie etwa Stadterneuerung und U-Bahnausbau können ihren Beitrag dazu leisten. Die genauere Ursachenforschung könnte man in einer weiteren Arbeit erörtern

Einbettung eines OEZA co-finanzierten NRO-Einzelprojektes in die nationale Armutsbekämpfungsstrategie von Mosambik

Wie viele bilaterale Geber steht auch die Österreichische Entwicklungszusammenarbeit (OEZA) vor dem Dilemma, dass es immer weniger Mittel gibt, aber immer mehr Erfolge gezeigt werden müssen. Die Kritik gegenüber der Entwicklungszusammenarbeit reißt nicht ab und tatsächlich hat sich trotz milliardenschwerer Entwicklungshilfe für die Empfängerländer in den letzten Jahrzehnten nicht viel verbessert. Daher kommen auch Geberländer wie Österreich mehr und mehr unter Rechtfertigungsdruck. Erhöhte Wirksamkeit und der Fokus auf Armutsbekämpfung sind daher die neuen Schlagwörter. Seit 2000 haben sich diesbezüglich auch einige neue Rahmenbedingungen entwickelt. Dazu zählen die Millenniumsentwicklungsziele (MDG), die Pariser Deklaration (PD) und auch die Poverty Reduction Strategies (PRS), welche auch Einfluss auf die OEZA haben. Die vorliegende Arbeit bietet eine Mehrebenen-Analyse eines Entwicklungsprojektes, welches im Bereich Wasser- und Siedlungshygiene verankert ist. Ein OEZA co-finanziertes NRO-Kooperationsprojekt dient als Fallbeispiel. Die zentrale Fragestellung lautet, wie dieses Projekt in die nationale Armutsbekämpfungsstrategie von Mosambik eingebettet und koordiniert ist. Mit Hilfe von fünf episodischen Interviews wurden unterschiedliche Akteure befragt. Vier Interviews wurden während eines Feldaufenthaltes in Mosambik durchgeführt und eines in Österreich. Die interviewten Personen kommen aus sehr unterschiedlichen Bereichen und können jeweils andere Sichtweisen einfließen lassen. So wurden eine lokale Projektmitarbeiterin befragt, der Projektmanager, ein freiwilliger Helfer aus Portugal, eine Beamtin einer Provinzbehörde und eine Repräsentantin der OEZA in Wien. Eben diese unterschiedlichen Personen zeigen ein diverses Bild der Einbettung und Koordination und können sehr wichtige Schlussfolgerungen für die Analyse liefern.Like many other bilateral donors the Austrian Development Cooperation (ADC) faces the dilemma of shortage of funds on the one side and the need of showing better results on the other side. A lot of criticism against international development cooperation in general has come up within the last decades. In spite of billions of development aid flows no significant improvement has been achieved in many developing countries. This is why donor countries like Austria have come under pressure to legitimate their engagement. Due to this need of justification the focus has shifted to the improvement of aid effectiveness and to poverty reduction. Since 2000 several new general frameworks and conditions have arisen on the international agenda like the Millennium Development Goals (MDGs), the Paris Declaration (PD) and the Poverty Reduction Strategies (PRS), which do have influence on the ADC’s activities. This thesis offers a multilevel analysis of a single development project in Mozambique with focus on water and sanitation. An ADC co-financed NGO-cooperation project serves as case study. The main objective is to show how the project is embedded, aligned and coordinated with and into the national poverty reduction strategy. Five episodic interviews have been carried out to approach this question. Four of them have been conducted in Mozambique during a field study and one in Austria. The interviewees stem from different backgrounds which allowed covering different aspects and opinions on all levels. I have interviewed local project staff, the project manager, a volunteer from Portugal, an officer from a provincial department and one officer from ADA in Vienna. These different stakeholders have drawn a broad picture of the embedding and alignment and have thus enabled me to draw important conclusions for the research

Evaluation of the INECO Frontal Screening and the Frontal Assessment Battery in Peruvian patients with Alzheimer's disease and behavioral variant Frontotemporal dementia

Background: The physicians often confuse the early symptoms of Frontotemporal dementia (FTD) with Alzheimer dementia (AD), leading to misdiagnosis. There are some cognitive tests to discriminate between AD and behavioral variant FTD (bvFTD), and the INECO Frontal Screening (IFS) is a promising test for this purpose. Objective: To assess the performance of the IFS to differentiate patients with AD from patients with bvFTD, compared with the Frontal Assessment Battery (FAB). Methods: A prospective study with 117 patients of our cognitive unit (35 case-patients with AD, 34 case-patients with bvFTD, and 48 control subjects). They were submitted to the following successive phases of evaluation: 1) screening; 2) dementia diagnosis; and 3) dementia sub-type diagnosis. The IFS and FAB were blind and independently applied by one neurologist to all the participants to end of phase 1 (screening), before to the definitive diagnosis establishment. Results: bvFTD showed a lower performance than AD patients on the IFS total score (F(1, 66) = 70.10, p < 0.01) and FAB total score (F(1, 66) = 17.91, p < 0.01). The IFS and FAB showed a sensitivity of 94.12% (95%CI = 80.3–99.2) and 82.3% (95%CI = 65.4–93.2), and a specificity of 94.2% (95%CI = 80.8–99.3) and 48.5% (95%CI = 31.3, 66.1), respectively. The IFS showed significantly superior discriminatory accuracy than the FAB (AuCIFS = 0.98; AuCFAB = 0.73, p < 0.00001). Conclusion: The IFS is useful for discriminating between AD and bvFTD patients. The performance of the IFS to differentiate patients with AD from patients with bvFTD is greater than FAB.Fil: Custodio, Nilton. Instituto Peruano de Neurociencias; PerúFil: Herrera Perez, Eder. Instituto Peruano de Neurociencias; PerúFil: Lira, David. Instituto Peruano de Neurociencias; PerúFil: Roca, María. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt | Instituto de Neurología Cognitiva. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt | Fundación Favaloro. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt.; ArgentinaFil: Manes, Facundo Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt | Instituto de Neurología Cognitiva. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt | Fundación Favaloro. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt.; Argentina. Australian Research Council; AustraliaFil: Báez Buitrago, Sandra Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt | Instituto de Neurología Cognitiva. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt | Fundación Favaloro. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt.; ArgentinaFil: Torralva, Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt | Instituto de Neurología Cognitiva. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt | Fundación Favaloro. Instituto de Neurociencia Cognitiva y Traslacional. Fundación Ineco Rosario Sede del Incyt.; Argentina. Australian Research Council; Australi

Efecto de los efluentes cloacales sobre el ensamble macrobentónico submareal en un estuario urbano de la Argentina

Se analizó el efecto de los efluentes cloacales sin tratamiento sobre el ensamble macrobentónico submareal del estuario de Bahía Blanca. Se examinaron las variaciones espaciales en los descriptores biológicos en relación con los parámetros ambientales y la distribución de metales en los sedimentos de un canal afectado por efluentes urbanos. A lo largo del canal se registraron valores de concentración de metales mayores a los de la zona interna del estuario (sitio de referencia). Los valores más altos de turbidez del agua se registraron en el sitio próximo a la zona de descarga del efluente y en la zona media del canal, donde, además, se depositaron sedimentos de un dragado de la zona portuaria e industrial realizado dos años antes que este estudio. La densidad del ensamble disminuyó hacia la zona cercana a la descarga del efluente, mientras que la riqueza y la diversidad alcanzaron valores mínimos tanto en la zona de descarga como la zona media. Sólo dos especies de poliquetos se asociaron con estas áreas: Laeonereis acuta y Aphelochaeta sp.; el primero se encontró en la zona de descarga de efluentes, donde Cd y Pb fueron los metales más abundantes, y el segundo fue la especie dominante en el sitio caracterizado por la presencia de material de dragado y altas concentraciones de Cr y Ni. Este estudio proporciona datos de base con los cuales contrastar futuras medidas de manejo.We examined spatial variations in the biological descriptors of macrobenthic assemblage in relation to environmental parameters and metal distribution in the sediments along a channel of Bahía Blanca estuary affected by non-treatment sewage effluents. Along the channel, metal concentration values were higher than those in the internal estuary area, a sector considered as a reference site. The highest values of water turbidity and metal content in sediments were observed in the effluent discharge zone and at the site where sediments from dredging activities were deposited two years ago. The density of macrobenthic assemblages decreased towards the effluent discharge zone, but the richness and diversity reached to minimum values in both disturbed areas. Only two species of polychaetes were associated with these areas: Laeonereis acuta and Aphelochaeta sp.; the former being found in the effluent discharge zone, where Cd and Pb were most abundant, and the latter being the dominant species in the site characterized by dredging material and high concentrations of Cr and Ni. This study is the first approach to explore the impact of anthropogenic activities over the macrobenthic assemblage of the Bahía Blanca estuary, providing background data to use future management decisions.Fil: Fiori, Sandra Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Bravo, María Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; ArgentinaFil: Elias, Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Serra, Analia Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; ArgentinaFil: Carcedo, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Dos Santos, Eder Paulo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; ArgentinaFil: Botté, Sandra Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentin

Sabellaria nanella (Sabellariidae): from solitary subtidal to intertidal reef building worm at Monte Hermoso, Argentina (39°S, south­west Atlantic)

This contribution reports the first record of intertidal reefs built by the sabellariid worm Sabellaria nanella in the lower intertidal at Monte Hermoso beach, Argentina (39ºS). All previous records of S. nanella in the study area correspond to solitary individuals from shallow subtidal depths in coastal environments, while the present findings refer to well established reefs on stony rocks. Worms sort medium size sand grains to build the reefs, which contain higher amount of organic matter than the surrounding sediments. Size structure of worms shows multiple size cohorts that include recent recruits and mature adults. Many invertebrates, i.e. various annelids, arthropods, molluscs, nemerteans and nematodes, are the frequent organisms living within the reef, some of them already recorded in the area. The presence of intertidal reefs of S. nanella indicates that the species has plasticity to adapt to environments with different physical conditions (subtidal-intertidal areas).Fil: Bremec, Claudia Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; ArgentinaFil: Carcedo, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); ArgentinaFil: Piccolo, Maria Cintia. Universidad Nacional del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); ArgentinaFil: Dos Santos, Eder Paulo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); ArgentinaFil: Fiori, Sandra Marcela. Universidad Nacional del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentin

Applicability of liquid biopsies to represent the mutational profile of tumor tissue from different cancer entities

Genetic investigation of tumor heterogeneity and clonal evolution in solid cancers could be assisted by the analysis of liquid biopsies. However, tumors of various entities might release different quantities of circulating tumor cells (CTCs) and cell-free DNA (cfDNA) into the bloodstream, potentially limiting the diagnostic potential of liquid biopsy in distinct tumor histologies. Patients with advanced colorectal cancer (CRC), head and neck squamous cell carcinoma (HNSCC), and melanoma (MEL) were enrolled in the study, representing tumors with different metastatic patterns. Mutation profiles of cfDNA, CTCs, and tumor tissue were assessed by panel sequencing, targeting 327 cancer-related genes. In total, 30 tissue, 18 cfDNA, and 7 CTC samples from 18 patients were sequenced. Best concordance between the mutation profile of tissue and cfDNA was achieved in CRC and MEL, possibly due to the remarkable heterogeneity of HNSCC (63%, 55% and 11%, respectively). Concordance especially depended on the amount of cfDNA used for library preparation. While 21 of 27 (78%) tissue mutations were retrieved in high-input cfDNA samples (30-100 ng, N = 8), only 4 of 65 (6%) could be detected in low-input samples (<30 ng, N = 10). CTCs were detected in 13 of 18 patients (72%). However, downstream analysis was limited by poor DNA quality, allowing targeted sequencing of only seven CTC samples isolated from four patients. Only one CTC sample reflected the mutation profile of the respective tumor. Private mutations, which were detected in CTCs but not in tissue, suggested the presence of rare subclones. Our pilot study demonstrated superiority of cfDNA- compared to CTC-based mutation profiling. It was further shown that CTCs may serve as additional means to detect rare subclones possibly involved in treatment resistance. Both findings require validation in a larger patient cohort

Makerspaces zur Wissenschaftsvermittlung und Innovationsraum der neuen Generation

Der vorliegende Beitrag skizziert die Landschaft der Schüler*innen-Labore und betrachtet Makerspaces als neue Variante davon. Der Beitrag versucht dabei, Makerspace systematisch einzuordnen. Dabei fällt auf, dass in Makerspaces insbesondere die Interdisziplinarität eine wachsende Bedeutung erhält und dass der pädagogisch-didaktische Ansatz der Maker Education offener ist als in herkömmlichen Schüler*innen-Labor-Konzepten. Im Beitrag werden dazu auch Beispiele für Makerspaces als Schüler*innen-Labore genannt. (DIPF/Orig.

Improvement in varistor properties of CaCu3Ti4O12 ceramics by chromium addition

The effect of chromium addition on the structure and electrical properties of CaCu3Ti4O12 is studied. Compositions based on the formula CaCu3Ti4-xCrxO12-δ (x = 0, 0.025, 0.050 and 0.075 mol%) are prepared by solid-state reaction. Pellets sintered at 1070 °C for 12 h are characterised by X-ray diffraction, scanning electron microscopy/energy dispersive spectroscopy and impedance spectroscopy. Current density-electric field, dielectric loss and permittivity measurements are also carried out. Rietveld refinement showed the substitution of Cr(III) on the Ti(IV) site, with the maximum substitution for x = 0.025 mol%. The generation of electrical defects in the grain boundary region by chromium doping is responsible for increasing the electric breakdown field strength and nonlinearity coefficient at room temperature from 1723 V/cm and 5.29 for x = 0 mol% to 3431 V/cm and 8.16 for x = 0.025 mol%. This composition shows the greatest improvement in ceramic varistor parameters

Characterization of Soybean Cultivars for Biodiesel Production

Due to environmental issues involving the polluting gasesemission, Brazil has adopted the policy of using oil and biodiesel. For biodiesel production, the main raw material used in Brazil is soybean oil. The development of the numerous genotypes of this culture has always considered quantitative aspects. The objective was to qualitatively characterize 12 soybean cultivars for biodiesel production. The experimental design was randomized blocks with three replicates. The cultivars were sown in December 2016, in no-tillage system, in Ponta Grossa, Paraná, Brazil (-25.093056, -50.063327 UTM). The analyzed variables were: oil and protein contents, acidity index and specific mass. It was concluded that there were no significant differences among the cultivars for oil and protein contents. For the variables acidity index and specific mass, there were significant differences among the cultivars, being below the limits established by the Brazilian legislation for vegetable oil, but with potential for biodiesel production