Asymptotic Behavior of Ext functors for modules of finite complete intersection dimension

Let $R$ be a local ring, and let $M$ and $N$ be finitely generated $R$-modules such that $M$ has finite complete intersection dimension. In this paper we define and study, under certain conditions, a pairing using the modules \Ext_R^i(M,N) which generalizes Buchweitz's notion of the Herbrand diference. We exploit this pairing to examine the number of consecutive vanishing of \Ext_R^i(M,N) needed to ensure that \Ext_R^i(M,N)=0 for all $i\gg 0$. Our results recover and improve on most of the known bounds in the literature, especially when $R$ has dimension at most two

A bio-psycho-social exercise program (RÜCKGEWINN) for chronic low back pain in rehabilitation aftercare - Study protocol for a randomised controlled trial

<p>Abstract</p> <p>Background</p> <p>There is strong, internationally confirmed evidence for the short-term effectiveness of multimodal interdisciplinary specific treatment programs for chronic back pain. However, the verification of long-term sustainability of achieved effects is missing so far. For long-term improvement of pain and functional ability high intervention intensity or high volume seems to be necessary (> 100 therapy hours). Especially in chronic back pain rehabilitation, purposefully refined aftercare treatments offer the possibility to intensify positive effects or to increase their sustainability. However, quality assured goal-conscious specific aftercare programs for the rehabilitation of chronic back pain are absent.</p> <p>Methods/Design</p> <p>This study aims to examine the efficacy of a specially developed bio-psycho-social chronic back pain specific aftercare intervention (RÜCKGEWINN) in comparison to the current usual aftercare (IRENA) and a control group that is given an educational booklet addressing pain-conditioned functional ability and back pain episodes. Overall rehabilitation effects as well as predictors for compliance to the aftercare programs are analysed. Therefore, a multicenter prospective 3-armed randomised controlled trial is conducted. 456 participants will be consecutively enrolled in inpatient and outpatient rehabilitation and assigned to either one of the three study arms. Outcomes are measured before and after rehabilitation. Aftercare programs are assessed at ten month follow up after dismissal form rehabilitation.</p> <p>Discussion</p> <p>Special methodological and logistic challenges are to be mastered in this trial, which accrue from the interconnection of aftercare interventions to their residential district and the fact that the proportion of patients who take part in aftercare programs is low. The usability of the aftercare program is based on the transference into the routine care and is also reinforced by developed manuals with structured contents, media and material for organisation assistance as well as training manuals for therapists in the aftercare.</p> <p>Trial Registration</p> <p>Trial Registration number: NCT01070849</p

Versportlichung der Gesellschaft und Entsportung des Sport? System¬theoretische Anmerkungen zu einem gesellschaftlichen Phänomen.

Cachay K. Versportlichung der Gesellschaft und Entsportung des Sport? System¬theoretische Anmerkungen zu einem gesellschaftlichen Phänomen. In: Gabler H, Göhner U, eds. Für einen besseren Sport. Schorndorf.; 1990: 97-113

Lebensstil-integrierte sportliche Aktivität: Ergebnisse der MoVo-LISA Interventionsstudie

Das psychologische Interventionsprogramm MoVo-LISA wurde entwickelt, um Aufbau und Aufrechterhaltung eines körperlich-aktiven Lebensstils im Anschluss an eine stationäre Rehabilitation zu unterstützen. Anders als die meisten bisherigen Programme zielt MoVo-LISA nicht nur auf eine Stärkung der Motivation, sondern auch auf eine Förderung der Selbststeuerungsfähigkeit, um aus bloßen Absichten tatsächliches Handeln werden zu lassen (Volition). N=220 Patienten einer stationären orthopädischen Rehabilitationseinrichtung wurden einer Kontroll- bzw. Interventionsbedingung zugewiesen (quasi-experimentelles Design). Die Kontrollgruppe erhielt das Standard-Klinikprogramm, die Interventionsgruppe zusätzlich die MoVo-LISA Intervention (2 Gruppengespräche und ein kurzes Einzelgespräch während des Klinikaufenthalts, eine postalische Erinnerung 3 Wochen und ein Kurztelefonat 5 Wochen nach der Klinikentlassung). Sportaktivität, Gesundheitsstatus und psychologische Variablen wurden zu 5 Messzeitpunkten erhoben. Ein Jahr nach Rehabilitationsende waren die Teilnehmer der Interventionsgruppe im Mittel 28 min/Woche länger sportlich aktiv als die der Kontrollgruppe (p=0,05). Die Hälfte der Teilnehmer der Interventionsgruppe waren mindestens 60 min/Woche aktiv, in der Kontrollgruppe jedoch nur 33 Prozent (p=0,01). Auch im Beschwerdeerleben (Schmerzindex) erreichte die Interventionsgruppe günstigere Werte. Bei MoVo-LISA handelt es sich um ein kostengünstiges, zeitlich effizientes und standardisiertes Interventionsprogramm, das in vielen Bereichen des Gesundheitswesens (v. a. ambulante und stationäre Reha) eingesetzt werden kann. Die Ergebnisse bestätigen die Annahme, dass es nachhaltig zum Aufbau eines körperlich-aktiven Lebensstils beitragen kann. Verf.-Referat The intervention program MoVo-LISA was developed to support setup and maintenance of a physically active lifestyle after rehabilitation. In contrast to most of the current programs MoVo-LISA does not only aim at strengthening motivation, but also at fostering self-regulation in order to help bridging the gap between intentions and actions. N=220 patients of an in-patient orthopaedic rehab clinic were assigned to the control or intervention group. While the control group only received standard care, the intervention group additionally received the MoVo-LISA intervention (consisting of two group-meetings and a one-on-one interview at the clinic, a postal reminder three weeks and a brief telephone contact five weeks after discharge). Physical exercise, health status and psychological variables were measured at five time points. One year after discharge, patients in the intervention group were more physically active than those in the control group (difference: 28 min/week; p=0,05). In the intervention group half of the patients were exercising for at least 60 min/week, in the control group only 33 percent (p=0,01). Furthermore, level of health complaints (pain index) in the intervention group was significantly lower than in the control group. MoVo-LISA is an economic, time-efficient and standardized intervention program which can be applied to many health-related settings (in particular to in-patient and out-patient rehabilitation). Results suggest that the program has the potential to support the long-term acquisition of a physically active lifestyle. Verf.-Refera