Perspektiven ökologischer Regulierungsverfahren für den Erbsenwickler (Cydia nigricana, Lep. Tortricidae) in Saat- und Gemüseerbsen mit Sexual-Pheromonen und Granuloseviren

Aufgrund der in den letzten Jahren in Deutschland stetigen gestiegenen Anbaufläche für Körnererbsen ist das Schadpotential einiger Leguminosenschädlinge, insbesondere des Erbsenwicklers (Cydia nigricana (Lep.: Tortricidae))deutlich gestiegen. In der ökologischen Vermehrung von Körnererbsensaatgut beeinträchtigt erhöhter Wicklerbefall die Keimfähigkeit, Triebkraft und auch die Saatgutreinheit durch sich festsetzenden Unkrautsamen in angefressenen Saaterbsen. Dies kann zur Abstufung ganzer Saatgutpartien führen. Weiterhin treten in den letzten Jahren Probleme im Vertragsanbau von Öko-Gemüseerbsen für die Tiefkühlbranche auf. Dort droht bereits mit der Überschreitung von 0,05% C. nigricana-geschädigter Erbsen die Aberkennung und damit Totalausfall für die gesamte Fläche. Wirksame, richtlinienkonforme Gegenmassnahmen stehen betroffenen Landwirten derzeit nicht zur Verfügung. Im Folgenden werden aus Feldversuchen der Jahre 2000, 2001 und 2003 einige grundlegende Erfahrungen zur Sortenanfälligkeit, zur räumlichen Befallsverteilung auf Praxisschlägen und zum Monitoring des Wicklerfluges mit Pheromon- Monitoringfallen erörtert. Vor diesem Hintergrund werden aussichtsreiche, ökologische Regeirungsansätze erläutert und erste Ergebnisse aus Tastversuchen dargestellt. Die Untersuchungen verfolgen das Ziel anstehende C. nigricana-Befallsrisiken zuverlässiger einschätzen zu können und angemessene und wirksame Regulative zu erarbeiten

Základy půdní úrodnosti

Zvyšování půdní úrodnosti bylo pro průkopníky ekologického zemědělství základem veškerého jejich úsilí. Přesto zachování úrodné půdy mnohdy nebyla věnována dostatečná pozornost. Ekologické zemědělství je však na přirozené půdní úrodnosti závislé. Oslabená a poškozená půda nám nemůže poskytnout to, co od ní očekáváme. Udržet úrodnost půdy vyžaduje velkou péči. Předkládaná brožura ukazuje půdní úrodnost z různých úhlů pohledu. Naším záměrem však nebylo vytvořit obecně platný „návod k použití“. Informace mají být mnohem spíše podnětem k tomu, aby se o vztahu člověka k půdě smýšlelo jinak a aby se tento vztah utvářel ve prospěch budoucnosti

Grundlagen zur Bodenfruchtbarkeit - Die Beziehung zum Boden gestalten

Die Broschüre beleuchtet die Bodenfruchtbarkeit aus verschiedenen wissenschaftlichen und bäuerlichen Blickwinkeln. Die Informationen wollen praktische Beobachtungen der Landwirte ergänzen und dazu anregen, die Beziehung zum Boden zu überdenken und eine wirklich nachhaltige Bodenkultur zu praktizieren

Spatiotemporal High-Resolution Cloud Mapping with a Ground-Based IR Scanner

The high spatiotemporal variability of clouds requires automated monitoring systems. This study presents a retrieval algorithm that evaluates observations of a hemispherically scanning thermal infrared radiometer, the NubiScope, to produce georeferenced, spatially explicit cloud maps. The algorithm uses atmospheric temperature and moisture profiles and an atmospheric radiative transfer code to differentiate between cloudy and cloudless measurements. In case of a cloud, it estimates its position by using the temperature profile and viewing geometry. The proposed algorithm was tested with 25 cloud maps generated by the Fmask algorithm from Landsat 7 images. The overall cloud detection rate was ranging from 0.607 for zenith angles of 0 to 10° to 0.298 for 50–60° on a pixel basis. The overall detection of cloudless pixels was 0.987 for zenith angles of 30–40° and much more stable over the whole range of zenith angles compared to cloud detection. This proves the algorithm’s capability in detecting clouds, but even better cloudless areas. Cloud-base height was best estimated up to a height of 4000 m compared to ceilometer base heights but showed large deviation above that level. This study shows the potential of the NubiScope system to produce high spatial and temporal resolution cloud maps. Future development is needed for a more accurate determination of cloud height with thermal infrared measurements

A New Timing System For PETRA IV

At DESY an upgrade of the PETRA III synchrotron light source towards a fourth-generation, low emittance machine PETRA IV is currently being actively pursued. The realization of this new machine implies a new design of the timing and synchronization system since require-ments on beam quality and controls will significantly change from the existing implementation at PETRA III. As of now the technical design phase of the PETRA IV project is in full swing. For the timing system the design process of the overall system as well as the evaluation of individual compo-nents has been started as of last year. Given the success of the at DESY developed MicroTCA.4-based timing system for the European XFEL accelerator it has been chosen to serve as a basis for the PETRA IV timing system devel-opment as well. We present first design ideas of the major timing system hardware component, a MicroTCA.4-based AMC for distributing clocks, triggers and further bunch-synchronous information within the accelerator complex and to user experiments. First steps of an evaluation pro-cess for designing the AMC hardware are briefly illustrat-ed

A New Timing System for PETRA IV

At DESY an upgrade of the PETRA III synchrotron light source towards a fourth-generation, low emittance machine PETRA IV is currently being actively pursued. The realization of this new machine implies a new design of the timing and synchronization system since require-ments on beam quality and controls will significantly change from the existing implementation at PETRA III. As of now the technical design phase of the PETRA IV project is in full swing. For the timing system the design process of the overall system as well as the evaluation of individual compo-nents has been started as of last year. Given the success of the at DESY developed MicroTCA.4-based timing system for the European XFEL accelerator it has been chosen to serve as a basis for the PETRA IV timing system devel-opment as well. We present first design ideas of the major timing system hardware component, a MicroTCA.4-based AMC for distributing clocks, triggers and further bunch-synchronous information within the accelerator complex and to user experiments. First steps of an evaluation pro-cess for designing the AMC hardware are briefly illustrat-ed

A New Timing System for PETRA IV

The currently ongoing PETRA IV project at DESY proposes an upgrade of the PETRA III synchrotron light source towards a fourth-generation, low emittance machine. The goal is to provide X-ray energies in the regime of 10 keV bringing the electron beam production to its physical limits with respect to the smallest achievable source size, and thus approaching the diffraction limit.The realization of this new, challenging machine im-plies a new design of the timing and synchronization system because requirements on beam quality and controls will become significantly more demanding with respect to the existing implementation at PETRA III. Furthermore, the PETRA IV baseline for the fast front-end electronics read-out will be based on the MTCA.4 standard. Given the success of the at DESY developed MicroTCA.4-based timing system for the European XFEL accelerator, it has been chosen to utilize the MTCA.4 technology for the PETRA IV timing system as well. We present in this paper general concepts of the timing and synchronization system, its integration into the con-trol system as well as first design ideas and evaluations of the major timing system hardware component, a MicroTCA.4-based AMC

I Fondamenti della fertilità del terreno

La fertilità del suolo è riconosciuta come valore fondante sin dai pionieri dell'agricoltura biologica ma, ancor oggi, alla conservazione di un suolo fertile non viene attribuita abbastanza attenzione. Eppure l'agricoltura biologica dipende da una buona e naturale fertilità del suolo

Gastrointestinal Complications After Pancreatoduodenectomy With Epidural vs Patient-Controlled Intravenous Analgesia: A Randomized Clinical Trial

IMPORTANCE Morbidity is still high in pancreatic surgery, driven mainly by gastrointestinal complications such as pancreatic fistula. Perioperative thoracic epidural analgesia (EDA) and patient-controlled intravenous analgesia (PCIA) are frequently used for pain control after pancreatic surgery. Evidence from a post hoc analysis suggests that PCIA is associated with fewer gastrointestinal complications.OBJECTIVE To determine whether postoperative PCIA decreases the occurrence of gastrointestinal complications after pancreatic surgery compared with EDA.DESIGN, SETTING, AND PARTICIPANTS In this adaptive, pragmatic, international, multicenter, superiority randomized clinical trial conducted from June 30, 2015, to October 1, 2017, 371 patients at 9 European pancreatic surgery centers who were scheduled for elective pancreatoduodenectomy were randomized to receive PCIA (n = 185) or EDA (n = 186); 248 patients (124 in each group) were analyzed. Data were analyzed from February 22 to April 25, 2019, using modified intention to treat and per protocol.INTERVENTIONS Patients in the PCIA group received general anesthesia and postoperative PCIA with intravenous opioids with the help of a patient-controlled analgesia device. In the EDA group, patients received general anesthesia and intraoperative and postoperative EDA.MAIN OUTCOMES AND MEASURES The primary end point was a composite of pancreatic fistula, bile leakage, delayed gastric emptying, gastrointestinal bleeding, or postoperative ileus within 30 days after surgery. Secondary end points included 30-day mortality, other complications, postoperative pain levels, intraoperative or postoperative use of vasopressor therapy, and fluid substitution.RESULTS Among the 248 patients analyzed (147 men; mean [SD] age, 64.9 [10.7] years), the primary composite end point did not differ between the PCIA group (61 [49.2%]) and EDA group (57 [46.0%]) (odds ratio, 1.17; 95% CI, 0.71-1.95 P = .54). Neither individual components of the primary end point nor 30-day mortality, postoperative pain levels, or intraoperative and postoperative substitution of fluids differed significantly between groups. Patients receiving EDA gained more weight by postoperative day 4 than patients receiving PCIA (mean [SD], 4.6 [3.8] vs 3.4 [3.6] kg; P = .03) and received more vasopressors (46 [37.1%] vs 31[25.0%1 P = .04). Failure of EDA occurred in 23 patients (18.5%).CONCLUSIONS AND RELEVANCE This study found that the choice between PCIA and EDA for pain control after pancreatic surgery should not be based on concerns regarding gastrointestinal complications because the 2 procedures are comparable with regard to effectiveness and safety. However, EDA was associated with several shortcomings