Quick abnormal-bid-detection method for construction contract auctions

Noncompetitive bids have recently become a major concern in both public and private sector construction contract auctions. Consequently, several models have been developed to help identify bidders potentially involved in collusive practices. However, most of these models require complex calculations and extensive information that is difficult to obtain. The aim of this paper is to utilize recent developments for detecting abnormal bids in capped auctions (auctions with an upper bid limit set by the auctioner) and extend them to the more conventional uncapped auctions (where no such limits are set). To accomplish this, a new method is developed for estimating the values of bid distribution supports by using the solution to what has become known as the German Tank problem. The model is then demonstrated and tested on a sample of real construction bid data, and shown to detect cover bids with high accuracy. This paper contributes to an improved understanding of abnormal bid behavior as an aid to detecting and monitoring potential collusive bid practices.

German open ended funds: was there a valuation problem?

In late 2005, a number of German open ended funds suffered significant withdrawals by unit holders. The crisis was precipitated by a long term bear market in German property investment and the fact that these funds offered short term liquidity to unit holders but had low levels of liquidity in the fund. A more controversial suggestion was that the crisis was exacerbated by a perception that the valuations of the fund were too infrequent and inaccurate. As units are priced by reference to these valuations with no secondary market, the valuation process is central to the process. There is no direct evidence that these funds were over-valued but there is circumstantial evidence and this paper examines the indirect evidence of the process to see whether the hypothesis that valuation is an issue for the German funds holds any credibility. It also discusses whether there is a wider issue for other funds of this nature or whether it is a parochial problem confined to Germany. The conclusions are that there is reason to believe that German valuation processes make over-valuation in a recession more likely than in other countries and that more direct research into the German valuation system is required to identify the issues which need to be addressed to make the valuation system more trusted.

A bridge between engineering and language learning : automation and German in an online course

Artikkeli luettavissa osassa: Part 2. - ISBN 9789522163172(PDF). - Liitteenä työpaperi

A Comparative Study on Internationalization and the Role of International Offices at Selected Middle Eastern and German Universities

Internationalization of higher education has become one of the most important policies for institutions of higher education worldwide. Though universities are international by nature, the need for intensified quality activities of international nature has promoted internationalization to be under spotlight of researchers, administrators and policy makers and to be an area for research. Each institution follows its certain way to govern its international affairs. Most Universities, especially in the 'Developed World' started to plan it strategically. This study explores the meanings and importance of internationalization especially that it means different things to different people. It also studies the rationales behind internationalizing higher education. It focuses on the four main prevailing rationales; political, cultural/social, economic/financial, and academic on both national and institutional levels. With the increasing need to strategically plan, the study explores internationalization strategies in terms of how to develop them, what are their approaches and types, and their components and dimensions. Damascus University has witnessed an overwhelming development of its international relations and activities. Therefore, it started to face a problem of how to deal with this increasing load especially that its International Office is the only unit that deals with the international issues. In order to study the internationalization phenomenon at Damascus University, the 2WH approach, which asks the what, why, and how questions, is used and in order to define the International Office's role in the internationalization process of the University, it studies it and the international offices of Kassel University, and Humboldt University in Germany, The University of Jordan, and Al Baath University in Syria using the 'SOCIAL' approach that studies and analyses the situation, organization, challenges, involvement, ambitions, and limitations of these offices. The internationalization process at the above-mentioned Universities is studied and compared in terms of its meaning, rationales for both the institution and its academic staff, challenges and strategic planning. Then a comparison is made among the international offices of the Universities to identify their approaches, what led to their success and what led to their failure in their practices. The aim is to provide Damascus University and its International Office with some good practices and, depending on the experiences of the professionals of the case-studies, a suggested guidance to the work of this Office and the University in general is given. The study uses the interviews with the different officials and stakeholders of the case-studies as the main method of collecting the information in addition to site visits, studying their official documents and their websites. The study belongs to qualitative research that has an action dimension in it since the recommendations will be applied in the International Office. The study concludes with few learned lessons for Damascus University and its International Office depending on the comparison that was done according to a set of dimensions. Finally a reflection on the relationship between internationalization of higher education and politics, the impact of politics on Middle Eastern Universities, and institutional internationalization strategies are presented.

Dynamics in dumbbell domains II. The limiting problem

In this work we continue the analysis of the asymptotic dynamics of reaction-diffusion problems in a dumbbell domain started in [J.M. Arrieta, AN Carvalho, G. Lozada-Cruz, Dynamics in dumbbell domains I. Continuity of the set of equilibria, J. Differential Equations 231 (2) (2006) 551-597]. Here we study the limiting problem, that is, an evolution problem in a ""domain"" which consists of an open, bounded and smooth set Omega subset of R(N) with a curve R(0) attached to it. The evolution in both parts of the domain is governed by a parabolic equation. In Omega the evolution is independent of the evolution in R(0) whereas in R(0) the evolution depends on the evolution in Omega through the continuity condition of the solution at the junction points. We analyze in detail the linear elliptic and parabolic problem, the generation of linear and nonlinear semigroups, the existence and structure of attractors. (C) 2009 Elsevier Inc. All rights reserved.

Dynamics in dumbbell domains II. The limiting problem

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Traffic congestion: the problem and how to deal with it

The text of 194 pages analyses the negative impacts of congestion and the multidisciplinary efforts that are needed to keep it under control, through the design of appropriate policies and measures. Congestion control is part of the development of a strategic vision of how a city should develop which can make it possible to harmonize the needs of mobility, growth and competitiveness, which are so necessary today and in the future, with the sustainability of cities and the improvement of their quality of life.The task is complex and it is not easy to find appropriate solutions. The present publication presents tools for tackling this crucial problem. Everything indicates that it calls for high professional and leadership qualities on the part of the authorities, and that it must have the active support of the citizens.This edition of the Bulletin presents a summary of the main conclusions of the publication and it is stressed that ECLAC can conduct local workshops to analyze the problem and how to tackle it.

TANK SIZING AND OPTIMIZING LOOP PLACEMENT IN A BRANCHED WATER DISTRIBUTION SYSTEM

More than eighteen percent of the world’s population lives without reliable access to clean water, forced to walk long distances to get small amounts of contaminated surface water. Carrying heavy loads of water long distances and ingesting contaminated water can lead to long-term health problems and even death. These problems affect the most vulnerable populations, women, children, and the elderly, more than anyone else. Water access is one of the most pressing issues in development today. Boajibu, a small village in Sierra Leone, where the author served in Peace Corps for two years, lacks access to clean water. Construction of a water distribution system was halted when a civil war broke out in 1992 and has not been continued since. The community currently relies on hand-dug and borehole wells that can become dirty during the dry season, which forces people to drink contaminated water or to travel a far distance to collect clean water. This report is intended to provide a design the system as it was meant to be built. The water system design was completed based on the taps present, interviews with local community leaders, local surveying, and points taken with a GPS. The design is a gravity-fed branched water system, supplied by a natural spring on a hill adjacent to Boajibu. The system’s source is a natural spring on a hill above Boajibu, but the flow rate of the spring is unknown. There has to be enough flow from the spring over a 24-hour period to meet the demands of the users on a daily basis, or what is called providing continuous flow. If the spring has less than this amount of flow, the system must provide intermittent flow, flow that is restricted to a few hours a day. A minimum flow rate of 2.1 liters per second was found to be necessary to provide continuous flow to the users of Boajibu. If this flow is not met, intermittent flow can be provided to the users. In order to aid the construction of a distribution system in the absence of someone with formal engineering training, a table was created detailing water storage tank sizing based on possible source flow rates. A builder can interpolate using the source flow rate found to get the tank size from the table. However, any flow rate below 2.1 liters per second cannot be used in the table. In this case, the builder should size the tank such that it can take in the water that will be supplied overnight, as all the water will be drained during the day because the users will demand more than the spring can supply through the night. In the developing world, there is often a problem collecting enough money to fund large infrastructure projects, such as a water distribution system. Often there is only enough money to add only one or two loops to a water distribution system. It is helpful to know where these one or two loops can be most effectively placed in the system. Various possible loops were designated for the Boajibu water distribution system and the Adaptive Greedy Heuristic Loop Addition Selection Algorithm (AGHLASA) was used to rank the effectiveness of the possible loops to construct. Loop 1 which was furthest upstream was selected because it benefitted the most people for the least cost. While loops which were further downstream were found to be less effective because they would benefit fewer people. Further studies should be conducted on the water use habits of the people of Boajibu to more accurately predict the demands that will be placed on the system. Further population surveying should also be conducted to predict population change over time so that the appropriate capacity can be built into the system to accommodate future growth. The flow at the spring should be measured using a V-notch weir and the system adjusted accordingly. Future studies can be completed adjusting the loop ranking method so that two users who may be using the water system for different lengths of time are not counted the same and vulnerable users are weighted more heavily than more robust users.

Problem Solving Policing: Views of Citizens and Citizens Expectations in Germany

For the last two decades American police experts developed new police philosophies in order to tackle more successful the increasing crime problems. Community Policing tries to improve the cooperation between the population and the police and to increase the trust in the police. A crucial factor is a meaningful cooperation between the police and the citizens. Problem Oriented Policing aims at structural changes in the organisation and the procedures of the police in public. The police have to investigate the hidden problems and conflicts of an individual offence and to create proactive and long term concepts for the social area of conflicts beyond the specific case. It is doubtful whether these philosophies can be implemented in Germany since the legality principle prohibits meaningful, trustworthy relationships between citizens and police officers. However, if one examines the results of surveys on citizens views and expectations towards the police one finds that the majority of the German citizens favour the postulates of community and problem oriented policing. They expect through these measures an improvement of their life situation in the community and the feelings of safety. If one takes these results seriously one has to question if the legality principle is still appropriate. It seems to hamper new, more promising policing styles which seem to improve life of it's citizens and reflect what the citizens want and expect from their police force.

Google Images German Federal Court Entscheidung vom 29.04.2010, I ZR 69/08 With an English Introduction

The long-awaited verdict by the German Federal Court of Justice towards Google image search has drawn much attention to the problem of copyright infringement by search engines on the Internet. In the past years the question has arose whether the listing itself in a search engine like Google can be an infringement of copyright. The decision is widely seen as one of the most important of the last years. With significant amount of effort, the German Fede- ral Court tried to balance the interests of the right holders and those of the digital reality.

Challenges for medical educators: results of a survey among members of the German Association for Medical Education

BACKGROUND Despite the increasing interest in medical education in the German-speaking countries, there is currently no information available on the challenges which medical educators face. To address this problem, we carried out a web-based survey among the members of the Association for Medical Education (Gesellschaft für medizinische Ausbildung, GMA). METHODS A comprehensive survey was carried out on the need for further qualifications, expertise and the general conditions of medical educators in Germany. As part of this study, the educators were asked to list the three main challenges which they faced and which required urgent improvement. The results were analysed by means of qualitative content analysis. RESULTS The questionnaire was completed by 147 of the 373 members on the GMA mailing list (response rate: 39%). The educators named a total of 346 challenges and emphasised the following areas: limited academic recognition for engagement in teaching (53.5% of educators), insufficient institutional (31.5%) and financial support (28.4%), a curriculum in need of reform (22.8%), insufficient time for teaching assignments (18,9%), inadequate teacher competence in teaching methods (18.1%), restricted faculty development programmes (18.1%), limited networking within the institution (11.0%), lack of teaching staff (10.2%), varying preconditions of students (8.7%), insufficient recognition and promotion of medical educational research (5.5%), extensive assessment requirements (4.7%), and the lack of role models within medical education (3.2%). CONCLUSION The medical educators found the biggest challenges which they faced to be limited academic recognition and insufficient institutional and financial support. Consequently, improvements should be implemented to address these issues.

Risk of severe hypoglycemia in sulfonylurea-treated patients from diabetes centers in Germany/Austria: how big is the problem? which patients are at risk?

BACKGROUND We investigated the rate of severe hypoglycemic events and confounding factors in patients with type-2-diabetes treated with sulfonylurea (SU) at specialized diabetes centers, documented in the German/Austrian DPV-Wiss-database. METHODS Data from 29,485 SU-treated patients were analyzed (median[IQR] age 70.8[62.2-77.8]yrs, diabetes-duration 8.2[4.3-12.8]yrs). The primary objective was to estimate the event-rate of severe hypoglycemia (requiring external help, causing unconsciousness/coma/convulsion and/or emergency.hospitalization). Secondary objectives included exploration of confounding risk-factors through group-comparison and Poisson-regression. RESULTS Severe hypoglycemic events were reported in 826(2.8%) of all patients during their most recent year of SU-treatment. Of these, n = 531(1.8%) had coma, n = 501(1.7%) were hospitalized at least once. The adjusted event-rate of severe hypoglycemia [95%CI] was 3.9[3.7-4.2] events/100 patient-years (coma: 1.9[1.8-2.1]; hospitalization: 1.6[1.5-1.8]). Adjusted event-rates by diabetes-treatment were 6.7 (SU + insulin), 4.9 (SU + insulin + other OAD), 3.1 (SU + other OAD), and 3.8 (SU only). Patients with ≥1 severe event were older (p < 0.001) and had longer diabetes-duration (p = 0.020) than patients without severe events. Participation in educational diabetes-programs and indirect measures of insulin-resistance (increased BMI, plasma-triglycerides) were associated with fewer events (all p < 0.001). Impaired renal function was common (N = 3,113 eGFR ≤30 mL/min) and associated with an increased rate of severe events (≤30 mL/min: 7.7; 30-60 mL/min: 4.8; >60 mL/min: 3.9). CONCLUSIONS These real-life data showed a rate of severe hypoglycemia of 3.9/100 patient-years in SU-treated patients from specialized diabetes centers. Higher risk was associated with known risk-factors including lack of diabetes-education, older age, and decreased eGFR, but also with lower BMI and lower triglyceride-levels, suggesting that SU-treatment in those patients should be considered with caution. This article is protected by copyright. All rights reserved.

Na 1 Nachlass Max Horkheimer, 705 - Studien über Nationalismus und Autorität; Darmstädter Gemeindestudie; "Project on Attitudes of German Youth" u.a. (p. IX 176 - IX 181a)

"Gruppenuntersuchung über Nationalismus", Juni 1950. Typoskript mit handschriftlichen Ergänzungen von Friedrich Pollock, 18 Blatt; "Beitrag des Instituts für Sozialforschung zu dem Forschungsobjekt (Forschungsprojekt?) über Autorität", 1950/51, a) Typoskript, 5 Blatt, b) Typoskript mit dem Titel "New Project on Authority" mit handschriftlichen Korrekturen, 7 Blatt; "Memorandum über eine Studie zum Problem der Autorität im deutschen Erziehungswesen", ca. 1950. Typoskript, 4 Blatt; "Darmstädter Gemeindestudie", 1950-52: 1. Theodor W. Adorno: "Memorandum re: Stand der Darmstädter Gemeindestudie bei der Abreise von Theodor W. Adorno", 15.10.1952. Typoskript mit eigenhändigen Korrekturen, 2 Blatt; 2. Ansprache bei der Überreichung der ersten Publikationen der Studie an den Minister und den Bürgermeister von Darmstadt, 2.7.1952, Typoskript, 9 Blatt; 3. Max Horkheimer: "Gutachten über die Darmstädter Gemeindestudie", 1.4.1952. Typoskript, 2 Blatt; 4. "Memorandum on the Participation of the Institute of Social Research in the Darmstadt Community Study", 31.3.1952. Typoskript, 3 Blatt; 5. Theodor W. Adorno: 'Memorandum re: Darmstadt', 4.9.1951. Typoskript, 1 Blatt; 6. "Eine Untersuchung über die Einstellung der Arbeitnehmer zu ihren wirtschaftlichen Interessenvertretungen (Darmstädter Gemeindestudie). Entwurf", 20.7.1951. Typoskript mit handschriftlichen Korrekturen, 6 Blatt; 7. Theodor W. Adorno: "Memorandum über zwei an das Institut für Sozialforschung zu vergebende Aufträge im Rahmen der Darmstädter Gemeindestudie". Typoskripte, 6 Blatt; 8. Theodor W. Adorno: "Aktennotiz über die Besprechung am 20. November 1950 zwischen den Leitern der Darmstädter Gemeindestudie, insbesondere Dr. Grigsy und Magnifizenz Rolfes, und Theodor W. Adorno". Typoskript, 2 Blatt; 9. Bemerkungen zum Abbruch und zur Neuorganisation der Studie, für eine Rede in Chicago, Typoskript, englisch, ohne Datum, 1 Blatt; "Outline of a Study of In-Between-Culture" ("Edelkitsch"), Anfang der 1950er Jahre. Typoskript, englisch, 1 Blatt; "Project on Attitudes of German Youth", 1951: 1. "Some Remarks of the Present German Social Situation", a) Typoskript, 24 Blatt, b) Typoskript mit handschriftlichen Korrekturen, 23 Blatt, c) Typoskript, 23 Blatt, d) Typoskript, 21 Blatt, e) Entwurf, Typoskript, 23 Blatt; 2. "Estimate for six month project on Attitudes of German Youth", 2 Blatt; Institut für Sozialforschung: "Umfrage unter Frankfurter Studenten" (Max Horkheimer: "Vorbemerkung"): Über die soziale Situation und die Einstellun der Studenten, 1952, Ergebnisse eines Praktikums zur empirischen Sozialforschung, Wintersemester 1951/52, als Typoskript vervielfältigt, gebunden, 126 Blatt;