642 research outputs found
Credit securitization and credit derivatives : financial instruments and the credit risk management of middle market commercial loan portfolios
Banks increasingly recognize the need to measure and manage the credit risk of their loans on a portfolio basis. We address the subportfolio "middle market". Due to their specific lending policy for this market segment it is an important task for banks to systematically identify regional and industrial credit concentrations and reduce the detected concentrations through diversification. In recent years, the development of markets for credit securitization and credit derivatives has provided new credit risk management tools. However, in the addressed market segment adverse selection and moral hazard problems are quite severe. A potential successful application of credit securitization and credit derivatives for managing credit risk of middle market commercial loan portfolios depends on the development of incentive-compatible structures which solve or at least mitigate the adverse selection and moral hazard problems. In this paper we identify a number of general requirements and describe two possible solution concepts
An epidemiological appraisal of Berlin
Background Since the late 1950âs, a steadily increasing immigrant population
in Germany is resulting in a subpopulation of aging immigrants. The German
health care system needs to adjust its servicesâlinguistically, culturally,
and medicallyâfor this subpopulation of patients. Immigrants make up over 20%
of the population in Germany, yet the majority receive inadequate medical
care. As many of the labor immigrants of the 1960s and 1970s are in need of
hospice and palliative care (HPC), little is known about this specialized care
for immigrants. This epidemiological study presents utilization of HPC
facilities in Berlin with a focus on different immigrant groups. Methods A
validated questionnaire was used to collect data from patients at 34 HPC
institutions in Berlin over 20 months. All newly admitted patients were
recruited. Anonymized data were coded and analyzed by using SPSS and compared
with the population statistics of Berlin. Results 4118 questionnaires were
completed and included in the analysis. At 11.4% the proportion of immigrants
accessing HPC was significantly (p<0,001) below their proportion in the
general Berlin population. This difference was especially seen in the age
groups of 51â60 (21.46% immigrants in Berlin population, 17.7% immigrants in
HPC population) and 61â70 years (16,9% vs. 13,1%). The largest ethnic groups
are Turks, Russians, and Poles, with a different weighting than in the general
population: Turkish immigrants were 24% of all Berlin immigrants, but only
13.6% of the study immigrant population (OR: 0.23, 95%CI: 0.18â0.29, p<0.001).
Russian and Polish immigrants account for 5.6% and 9.2% in the population, but
11.5% and 24.8% in the study population respectively (Russian: OR 0.88, 95%CI:
0.66â1.16; Polish: OR 1.17, 95%CI: 0.97â1.42). Palliative care wards (PC) were
used most often (16.7% immigrants of all PC patients); outpatient hospice
services were used least often by immigrants (11.4%). Median age at first
admission to HPC was younger in immigrants than non-immigrants: 61â70 vs.
71â80, p = 0.03. Conclusions Immigrants are underrepresented in BerlinÂŽs HPC
and immigrants on average make use of care at a younger age than non-
immigrants. In this regard, Turkish immigrants in particular have the poorest
utilization of HPC. These results should prompt research on Turkish
immigrants, regarding access barriers, since they represent the largest
immigrant group. This may be due to a lack of cultural sensitivity of the
care-providers and a lack of knowledge about HPC among immigrants. In the
comparison of the kinds of institutions, immigrants are less likely to access
outpatient hospice services compared to PC. Apparently, PC appear to be a
smaller hurdle for utilization. These results show a non-existent, but oft-
cited âhealthy immigrant effectâ of the first generation of work immigrants,
now entering old age. These findings correspond with studies suggesting
increased health concerns in immigrants. Focused research is needed to promote
efforts in providing adequate and fair access to HPC for all people in Berlin
Thermal evolution and sintering of chondritic planetesimals III. Modelling the heat conductivity of porous chondrite material
The construction of models for the internal constitution and the temporal
evolution of large planetesimals, the parent bodies of chondrites, requires
information on the heat conductivity of the complex mixture of minerals and
iron metal found in chondrites. It is attempted to evaluate the heat
conductivity of a multi-component mineral mixture and granular medium from the
heat conductivities of its mixture components. Random mixtures of solids with
chondritic composition and packings of spheres are numerically generated. The
heat conduction equation is solved in high spatial resolution for a test cube
filled with such matter. From the heat flux through the cube the heat
conductivity of the mixture is derived. The model results for porous material
are consistent with data for compacted sandstone, but are at odds with
measurements for H and L chondrites. The discrepancy is traced back to shock
modification of the currently available meteoritic material by impacts on the
parent body over the last 4.5 Ga. This causes numerous micro-cracks that act as
additional barriers for heat transfer. The void structure in meteorites is
different from that which probably existed in the pristine material of the
parent bodies. The results obtained for the heat conductivity of the pristine
material are used for calculating models for the evolution of the H chondrite
parent body which are fitted to the cooling data of a number of H chondrites.
The fit to the data good.Comment: 19 pages, 8 figures, accepted by Astronomy & Astrophysic
Relevance of basic laboratory and clinical research activities as part of the vascular surgery fellowship: An assessment by program directors and postfellowship surgeons
AbstractIntroduction: Decreased federal monies for graduate medical education, increased clinical training demands, and a decreased pool of general surgery trainees applying to vascular surgery fellowships have brought into question the relevance of the fellowship research experience. This study sought to describe the recent laboratory experience of the fellows, the value of this experience to program directors (PDs) and the trainees, and what factors related to this experience contributed to the trainee entering an academic career versus a private practice career. Methods: A survey regarding the relevance of research experience during fellowship training was mailed in 2001 to all Accreditation Council for Graduate Medical Education-approved vascular surgery fellowship PDs and vascular surgery fellows (VSFs) from 1988 to 2000 applying for the American Board of Surgery Certificate of Added Qualification in General Vascular Surgery. Results: Survey responses were received from 89% of the PDs (74/83) and 69% of the VSFs (259/378). Among the PDs, 70% had completed an approved fellowship, and current bench research was performed by 46%. The PDs afforded protected research time to 69% of the VSFs (with a mean duration of 12 months). This research was in the basic science laboratory 34% of the time. Only 42% of the PDs considered basic laboratory research to be an important part of the fellowship, whereas 99% believed that clinical research was important. Among the PDs, 42% believed that more practice-oriented fellowships with no basic research were needed, whereas 35% believed that basic research should remain an integral component of the fellowship. VSF basic science productivity was significantly greater from those programs that offered protected research time as compared with those that did not (mean basic science paper published, 1.7 ± 0.1 versus 0.3 ± 0.6 per VSF; P < .001). At the time of the survey, 99 VSFs had entered academic careers and 136 were in private practice. Basic science research had been undertaken by 56% of the VSFs during medical school and by 53% during general surgery residency. Research during the fellowship was performed by 65% of the VSFs. This experience was considered helpful in choosing an academic or private practice career by 44% of the VSFs. A greater proportion of academic surgeons had research experience as VSFs when compared with VSFs who became private practitioners (71% versus 57%; P < .05). VSFs who entered academic careers had a more productive publication record in fellowship than did those who chose private practice (mean paper, 2.4 versus 1.5; P < .05). Overall, 78% of the VSFs believed that their research experience was maturing beyond the technical skills learned. Conclusion: This report provides a benchmark of the vascular surgery fellowship research experience. Most VSFs considered the research experience as it now exists to be worthwhile, and less than half of the PDs believed that it should remain as it is. Research experience in fellowship seemed more influential than that in medical school or general surgical residency in promoting an academic career. (J Vasc Surg 2002;36:1083-91.
Complete PSA Remission without Adjuvant Therapy after Secondary Lymph Node Surgery in Selected Patients with Biochemical Relapse after Radical Prostatectomy and Pelvic Lymph Node Dissection
Introduction. To evaluate whether secondary resection of lymph node (LN) metastases (LNMs) can result in PSA remission, we analysed the PSA outcome after resection of LNM detected on PET/CT in patients with biochemical failure. Materials and Methods. 11 patients with PSA relapse (mean 3.02âng/mL, range 0.5â9.55âng/mL) after radical prostatectomy without adjuvant therapy were included. Suspicious LN (1â3) detected on choline PET/CT and nearby LN were openly dissected (09/04â02/11). The PSA development was examined. Histological and PET/CT findings were compared. Results. 9 of 10 patients with histologically confirmed LNM showed a PSA response. 4 of 9 patients with single LNM had a complete permanent PSA remission (mean followup 31.8, range 1â48 months). Of metastasis-suspicious LNs (14) 12 could be histologically confirmed. The additionally removed 25 LNs were all correctly negative. Conclusions. The complete PSA remissions after secondary resection of single LNM argue for a feasible therapeutic benefit without adjuvant therapy. For this purpose the choline PET/CT is in spite of its limitations currently the most reliable routinely available diagnostic tool
Vom Leitziel zur Kennzahl: Teilhabe messbar machen
Viele Akteure in Kommunen haben den Anspruch, politischen Teilhabezielen auch praktische Geltung zu verschaffen. Um die Teilhabewirkungen ihrer Einrichtungen und Leistungen zu messen, können Kommunen zum einen vorhandene DatenbestĂ€nde und Instrumente teilhabeorientiert weiterentwickeln. Vielversprechend ist aber auch der Einsatz neuer spezifischer Instrumente zur Teilhabemessung. Im Bereich der Hilfen fĂŒr Menschen mit Behinderungen gibt es bereits gut ĂŒbertragbare AnsĂ€tze. Kennzahlen und Wirkungsindikatoren sollten jedoch nicht von auĂen vorgegeben, sondern von den lokalen Akteuren im Rahmen beteiligungsorientierter Verfahren gemeinsam entwickelt werden
Vom Leitziel zur Kennzahl: Teilhabe messbar machen
Eine Politik des sozialen Ausgleichs im Bund, im Land und in der Kommune braucht ein positives Gegenbild zu Armut und sozialer Ausgrenzung. Teilhabe ist eine solche Leitidee, an der sich auch viele kommunale Dienste und Einrichtungen orientieren. Die konkrete Messung erreichter Teilhabe auf lokaler Ebene bleibt jedoch noch weitgehend die Ausnahme. Diese Expertise gibt deswegen einen Ăberblick ĂŒber die theoretischen Grundlagen und Herausforderungen der Teilhabemessung, stellt die gesetzlichen Rahmenbedingungen in fĂŒnf sozialpolitischen Themenfeldern vor und erörtert verschiedene Instrumente sowie konkrete Umsetzungsbeispiele. Damit gibt sie lokalen Akteur_innen Anregungen, wie sozialpolitische AnsprĂŒche in Messverfahren fĂŒr Teilhabewirkungen zur Geltung kommen können.Equalizing social policy, at the federal, state and municipal levels alike, needs to oppose a positive point of reference to poverty and social exclusion. For many local social services and facilities, participation serves as such a guiding concept. So far however, practical approaches to measuring achievements in participation may only be found by way of rare exception. This expert report aims to provide an overview on theoretical foundations and practical challenges to measuring participation outcomes, taking into account the legislative framework in five fields of social policy and discussing different instruments and instances of their implementation. Its purpose is to encourage local stakeholders in effectively asserting welfare state entitlements by way of establishing a concrete metric for participation out-comes
THE POWER OF A PROCEDURALIST: PRESCRIBING GUIDELINEâBASED MEDICAL THERAPY PRIOR TO HOSPITAL DISCHARGE INCREASES COMPLIANCE AT SIX MONTHS IN PATIENTS WITH SEVERE PERIPHERAL ARTERY DISEASE
CorberĂł, XavierPrimer pla de la Font de la CorporaciĂł Metropolitana de Barcelona, situada al Torrent de l'Olla. Obra de Xavier CorberĂł (1985) dins de l'homenatge a Joan Maragall
Neue soziale Dienstleistungen nach SGB II
"Das besondere Profil der Dienstleistung, die im Rahmen von 'Hartz IV' Gestalt annimmt, blieb bislang unklar - nach wie vor bilden Leistungsprozesse fĂŒr die Arbeitsmarktforschung weitgehend eine 'black box'. In einer Konzeptstudie im Auftrag des IAB beobachtete ein Team des Soziologischen Forschungsinstituts (SOFI) an der Georg-August-UniversitĂ€t Göttingen in 20 FĂ€llen bei drei GrundsicherungstrĂ€gern ĂŒber sechs Monate hinweg Interaktionen zwischen FachkrĂ€ften und erwerbsfĂ€higen HilfebedĂŒrftigen. Der IAB-Forschungsbericht fasst die wesentlichen Ergebnisse eines ausfĂŒhrlichen Abschlussberichts zusammen. Die Konzeptstudie ging von der Annahme aus, dass im neuen Leistungssystem der Grundsicherung auch eine neuartige Dienstleistung entsteht, die hier als Fallbearbeitung bezeichnet wird. Wie viel Beratung, Vermittlung und Fallmanagement sie enthĂ€lt, wurde nicht normativ vorausgesetzt, sondern sollte empirisch geklĂ€rt werden. Im beobachteten GesprĂ€chsmaterial wurden wiederkehrende Interaktionsmuster identifiziert, die als 'Standardsequenzen' beschrieben und vier GesprĂ€chsfunktionen zugeordnet wurden: Das GesprĂ€ch, die Dienstleistungsbeziehung, die Inhalte der Fallbearbeitung und das Verwaltungsverfahren zu organisieren. Der Aktivierungsauftrag der GrundsicherungstrĂ€ger passte unterschiedlich gut auf die beobachteten FĂ€lle: Der Bericht unterscheidet vermittlungsorientierte Arbeitsuchende, solche mit Vermittlungshemmnissen und resignierte Arbeitslose. Der Bericht macht sieben zentrale Probleme der DienstleistungsqualitĂ€t in der Grundsicherung fĂŒr Arbeitsuchende aus: die zeitliche VerfĂŒgbarkeit der FachkrĂ€fte, den Konflikt zwischen standardisierten AblĂ€ufen und Einzelfallgrundsatz, den Aktivierungsauftrag als hierarchische Beziehung, die Aushandlung der zu bearbeitenden Themen, die Arbeitsteilung zwischen Ansprechpartnern, Sachbearbeitung und fallbeteiligten Dritten, die Rechtsunsicherheit in der Fallbearbeitung und die Unsicherheit ĂŒber die BerĂŒcksichtigung der Bedarfsgemeinschaft. Der Bericht empfiehlt, Aushandlungsprozessen zwischen FachkrĂ€ften und Arbeitsuchenden mehr Spielraum zu geben. Er schlieĂt mit der Empfehlung, die verlaufsorientierte Beobachtung von Leistungsprozessen stĂ€rker fĂŒr die Arbeitsmarktforschung und fĂŒr die QualitĂ€tssicherung zu nutzen." (Autorenreferat, IAB-Doku)Grundsicherung nach SGB II, Arbeitslosengeld II-EmpfĂ€nger, Case Management, Arbeitsvermittler
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