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In this paper two new methods for the design of fault-tolerant pipelined sequential and combinational circuits, called Error Detection and Partial Error Correction (EDPEC) and Full Error Detection and Correction (FEDC), are described. The proposed methods are based on an Error Detection Logic (EDC) in the combinational circuit part combined with fault tolerant memory elements implemented using fault tolerant master–slave flip-flops. If a transient error, due to a transient fault in the combinational circuit part is detected by the EDC, the error signal controls the latching stage of the flip-flops such that the previous correct state of the register stage is retained until the transient error disappears. The system can continue to work in its previous correct state and no additional recovery procedure (with typically reduced clock frequency) is necessary. The target applications are dataflow processing blocks, for which software-based recovery methods cannot be easily applied. The presented architectures address both single events as well as timing faults of arbitrarily long duration. An example of this architecture is developed and described, based on the carry look-ahead adder. The timing conditions are carefully investigated and simulated up to the layout level. The enhancement of the baseline architecture is demonstrated with respect to the achieved fault tolerance for the single event and timing faults. It is observed that the number of uncorrected single events is reduced by the EDPEC architecture by 2.36 times compared with previous solution. The FEDC architecture further reduces the number of uncorrected events to zero and outperforms the Triple Modular Redundancy (TMR) with respect to correction of timing faults. The power overhead of both new architectures is about 26–28% lower than the TMR.
Die ,,Europäisch-jüdischen Studien" repräsentieren die interdisziplinär vernetzte Kompetenz des neuen ,,Zentrums Jüdische Studien Berlin-Brandenburg" (ZJS). Das Zentrum versammelt die wichtigsten Institutionen dieser Region, die sich mit Jüdischen Studien befassen - darunter die einschlägigen Universitäten und Einrichtungen in Berlin und Potsdam. Der interdisziplinäre Charakter der Reihe zielt insbesondere auf geschichts-, geistes- und kulturwissenschaftliche Ansätze sowie auf intellektuelle, politische und religiöse Grundfragen, die jüdisches Leben und Denken heute inspirieren und in der Vergangenheit beeinflusst haben. In den BEITRÄGEN werden exzellente Monographien und Sammelbändezum gesamten Themenspektrum Jüdischer Studien veröffentlicht. Die Reihe ist peer-reviewed. In den KONTROVERSEN werden grundlegende Debatten aufgenommen, die von zeitgenössischer und publizistischer Relevanz sind. Die Reihe ist peer-reviewed. In den EDITIONEN werden Werke herausragender jüdischer Autoren neu aufgelegt.
Welch ein Anblick für die Welt", notierte Joseph Goebbels geschockt in seinem Tagebuch. "Ein geistig zerrütteter zweiter Mann nach dem Führer. Grauenhaft und unausdenkbar." Da war Rudolf Hess soeben zu seinem mysteriösen Flug nach England aufgebrochen, um im Alleingang Frieden zu stiften. Wer war dieser von Rätseln umgebene Mann, der wie ein Schatten Hitlers wirkte, in Nürnberg zu lebenslanger Haft verurteilt wurde und nach seinem Tod in Spandau zu einer Ikone der Neonazis werden sollte? Manfred Görtemaker legt die erste grundlegende Biographie vor, die mit neuen Quellen einen präzisen Einblick in die Chefetage des NS-Regimes ermöglicht. Der Potsdamer Zeithistoriker Manfred Görtemaker hat fast zwanzig Jahre lang an dieser akribisch recherchierten Biographie gearbeitet. Erstmals konnte er ca. 4.100 Briefe und 50.000 Blatt Schriftwechsel aus dem Hess-Nachlass im Berner Bundesarchiv auswerten, mit einer Sondergenehmigung die Papiere von Lord Selkirk of Douglas, dem Sohn des Duke of Hamilton, zu dem Hess nach Schottland flog, einsehen sowie eine beeindruckende Zahl von weiteren bislang unerschlossenen Archivalien heranziehen. Das Resultat ist das Lebensbild des Mannes, der von Anfang an mit Hitler durch dick und dünn ging, dessen wachsende Machtfülle wie ein Alter Ego verwaltete und über dessen Einfluss als "Stellvertreter des Führers" sich kein Rivale Illusionen machte. Manfred Görtemaker konnte als Erster Briefe und Schriften aus dem Nachlass von Rudolf Hess auswerten Hitlers treuester Paladin in einer präzisen biographischen Rekonstruktion Eine exemplarische Studie darüber, wie jemand zum Nazi wird
The European fire-bellied toad (Bombina bombina) is regarded as one of the most threatened species of amphibians in central Europe and is particularly affected by environmental perturbations. During the last decades population numbers in Germany have declined drastically due to pollution, eutrophication and habitat fragmentation. Illegal translocations resulted in an introgression from southern genotypes (probably Austrian) into three local Bombina populations (Northern Germany and Southern Sweden) belonging to the northern lineage of the species. Interestingly, these populations show high frequencies of allochthonous (non-local) alleles at multiple loci and outperform the autochthonous populations in terms of their body condition. Over a time period of ten years, I could show that the Southern lineage haplo- and genotypes are still present in the North and that frequencies of introgressed haplotypes in allochthonous populations did not increase over time. However, the introgression itself expanded towards adjacent populations while the overall haplotype diversity has decreased. In contrast, southern lineage genotypes for two candidate genes under selection, the (immunity) MHC class II gene, as well as the (temperature) stress response HSP70 kDa gene, either do not occur at all or only at low frequencies in northern populations. Furthermore, these alleles do not seem to follow the introgression pattern, as they are also present in non-introgressed populations. This thesis tested two possible outcomes of introgressive hybridization in Northern B. bombina populations: (1) local populations (autochthonous) of Bombina bombina are highly adapted to their environments so that introgression of alien genes causes outbreeding depression or (2) local populations of Bombina bombina potentially lack adaptive variation so that introgression of alien genes causes genetic rescue and promotes adaptive change. I found that this unintentional experiment, as a result of illegal translocations imitating introgression of alien genes coming from a southern population (potentially adapted to warmer climate) into a northern lineage (potentially adapted to local pathogens), has increased the genetic diversity and improved fitness in introgressed northern populations, without disrupting local adaptation in the threatened amphibian species B. bombina, favouring the genetic rescue hypothesis. These results and conclusions represent relevant information for future conservation plans, including supportive breeding programmes for fire-bellied toads in Northern Germany and Southern Sweden.
Importance Alcohol consumption (AC) leads to death and disability worldwide. Ongoing discussions on potential negative effects of the COVID-19 pandemic on AC need to be informed by real-world evidence.
Objective To examine whether lockdown measures are associated with AC and consumption-related temporal and psychological within-person mechanisms.
Design, Setting, and Participants This quantitative, intensive, longitudinal cohort study recruited 1743 participants from 3 sites from February 20, 2020, to February 28, 2021. Data were provided before and within the second lockdown of the COVID-19 pandemic in Germany: before lockdown (October 2 to November 1, 2020); light lockdown (November 2 to December 15, 2020); and hard lockdown (December 16, 2020, to February 28, 2021).
Main Outcomes and Measures Daily ratings of AC (main outcome) captured during 3 lockdown phases (main variable) and temporal (weekends and holidays) and psychological (social isolation and drinking intention) correlates.
Results Of the 1743 screened participants, 189 (119 [63.0%] male; median [IQR] age, 37 [27.5-52.0] years) with at least 2 alcohol use disorder (AUD) criteria according to the Diagnostic and Statistical Manual of Mental Disorders (Fifth Edition) yet without the need for medically supervised alcohol withdrawal were included. These individuals provided 14 694 smartphone ratings from October 2020 through February 2021. Multilevel modeling revealed significantly higher AC (grams of alcohol per day) on weekend days vs weekdays (β = 11.39; 95% CI, 10.00-12.77; P < .001). Alcohol consumption was above the overall average on Christmas (β = 26.82; 95% CI, 21.87-31.77; P < .001) and New Year’s Eve (β = 66.88; 95% CI, 59.22-74.54; P < .001). During the hard lockdown, perceived social isolation was significantly higher (β = 0.12; 95% CI, 0.06-0.15; P < .001), but AC was significantly lower (β = −5.45; 95% CI, −8.00 to −2.90; P = .001). Independent of lockdown, intention to drink less alcohol was associated with lower AC (β = −11.10; 95% CI, −13.63 to −8.58; P < .001). Notably, differences in AC between weekend and weekdays decreased both during the hard lockdown (β = −6.14; 95% CI, −9.96 to −2.31; P = .002) and in participants with severe AUD (β = −6.26; 95% CI, −10.18 to −2.34; P = .002).
Conclusions and Relevance This 5-month cohort study found no immediate negative associations of lockdown measures with overall AC. Rather, weekend-weekday and holiday AC patterns exceeded lockdown effects. Differences in AC between weekend days and weekdays evinced that weekend drinking cycles decreased as a function of AUD severity and lockdown measures, indicating a potential mechanism of losing and regaining control. This finding suggests that temporal patterns and drinking intention constitute promising targets for prevention and intervention, even in high-risk individuals.
Die staatliche Beschaffungstätigkeit ist korruptionsanfällig. Eine Sonderform der Korruption ist das „Kick-back“. Dabei handelt es sich um eine in den Auftragspreis inkludierte Zuwendung eines Unternehmenshandelnden an einen Bediensteten des vergebenden öffentlichen Auftraggebers für eine Bevorzugung im Vergabeverfahren. Kick-backs schädigen sowohl das staatliche Vermögen als auch den Leistungswettbewerb. Die öffentliche Auftragsvergabe muss daher mit einer wirksamen Prävention durch das Vergaberecht und einer umfassenden Sanktionsandrohung durch das Strafrecht vor Kick-backs geschützt werden. Der Autor untersucht, inwieweit das Vergabe- und das Strafrecht dieser Aufgabe gerecht werden. Er analysiert das Vergaberecht nach Präventions- und Missbrauchspotenzialen sowie die Strafbarkeitsrisiken für an der Vergabe mitwirkende Bedienstete des Auftraggebers. Darauf aufbauend entwickelt er Vorschläge für eine intensivere Bekämpfung von Kick-backs, unter anderem einen Sonderstraftatbestand.