Bodenbesiedelnde Spinnen (Arachnida, Araneae) eines Kiefernforstes bei Stücken in Brandenburg, Deutschland

Ground inhabiting spiders were investigated during the vegetation periods of 1996, 1998 and 2000 in four pine forests of Brandenburg, Germany. 1995 three of them were managed in different ways and one area served as a control. In total 105 different species were found and the lowest number of species was found on the control area. Due to the management the pine forests got opened and xerophilous species could settle the areas. In total a heterogeneous species community was found on each area. From year to year high rates of species turnover were measured even for the dominant species (> 5 % of all collected individuals per area and year). Some endangered species in Brandenburg were collected as well

START BLOCK KINETICS: WHAT THE BEST DO DIFFERENT THAN THE REST

The purpose of this study was to analyze the push – off forces of male and female sprinters from a wide range of performance levels, including the currently two fastest sprinters in the world. A force start block was used to measure the forces applied to the front and rear blocks. In total, 430 full effort starts of over 99 subjects were analyzed. World – class athletes did not leave the blocks with a higher center of mass velocity, but with a shorter block time. They were able to produce higher maximum forces and rates of force development. Maximum forces were more balanced between the front and rear leg. These results further highlight the importance of high force capacities for a successful sprint start. The more evenly distributed maximum forces of the front and rear leg of world – class athletes might be a technical feature that could help lower level athletes to improve their performance. Training success should be monitored using force measurements in the blocks

Zur Verbreitung und Ökologie der Marienkäfer im engeren Raum von Halle (Saale) (Coleoptera-Coccinellidae)

kein Abstract vorhandenno abstract availabl

Proposing A Cyber-Physical Production Systems Framework Linking Factory Planning And Factory Operation

The challenges for industrial companies in the area of factory planning and operation are characterised on the one hand by permanently shortening product life cycles and increasing product diversity. Furthermore, the demand for ecologically sustainable processes is growing and the complexity of production systems is increasing due to higher product complexity. This results in a complex decision-making space for companies within factory planning and factory operation which is difficult to plan. The advancing digitalisation can bring a great opportunity here. Modelling and simulation can create greater transparency in the context of planning and operation, and processes can be designed to be ecologically sustainable and efficient. Currently, research approaches in the context of factory planning and operation are focussing on the application and use of digital methods and tools of the Digital Factory (DF). However, the application is limited to individual areas in factory planning or factory operation. For this reason, this paper focuses on the design of a framework that addresses both factory planning and factory operation aspects and links them through modelling and simulation. Cyber-physical production systems (CPPS) can help here by mapping the individual modules within planning and operation using individual agents in agent-based simulation (AB). By linking planning and real data, the processes from planning and operation can be taken into account. From this, insights gained from planning can be simulated in an early phase and subjected to optimisation during operation. The cycle-oriented CPPS can be used on an ongoing basis by preparing the generic building blocks on the planning and operational sides through structured data acquisition and implementing them in the real world with the help of decision support from the virtual world

Process-oriented evaluation system for the use of robotic process automation

The administrative order processing is confronted with a variety of structural, procedural and organizational changes driven by the increasing demand for shorter delivery times and higher product variances. Thus, business processes become more complex and less transparent having a negative impact on administrative order processing. Studies estimate the waste in indirect areas at around 30 percent. The cause of this waste is, for example, missing information in the process step or interface losses during the transfer to another area of responsibility. This results in queries and coordination efforts that delay the order process. Among other things, robotic process automation (RPA) can be used to reduce waste. This enables the monitoring of administrative processes and the automation of sub-processes (activities). Identifying these automation potentials can be seen as a major challenge in administrative order processing due to the existing complexity. One way to discover automation potential is the use of data-driven tools such as process mining (PM). Using algorithms (e.g. a-miner), a process model is created based on data from central information systems (e.g. enterprise resource systems) allowing a systematical analyzation of causalities. Furthermore, PM can help to identify the relevant metrics for the RPA selection in a data-driven way, in order to support the selection process decisively. In the current state of research, most paper focuses on quantifiable key figures for evaluating RPA capabilities. Qualitative criteria for RPA use are rarely considered. This paper focuses on a qualitative criteria-based and quantitative indicator-based evaluation system for the use of RPA in administrative order processing The approach is validated in process mining software using a data set related to administrative order processing

Regulation of the pstSCAB operon in Corynebacterium glutamicum by the regulator of acetate metabolism RamB

Sorger-Herrmann U, Taniguchi H, Wendisch VF. Regulation of the pstSCAB operon in Corynebacterium glutamicum by the regulator of acetate metabolism RamB. BMC Microbiology. 2015;15(1): 113.Background The pstSCAB operon of Corynebacterium glutamicum, which encodes an ABC transport system for uptake of phosphate (Pi), is induced during the Pi starvation response. The two-component regulatory system PhoRS is involved in this response, but partial Pi starvation induction of pstSCAB in a ΔphoRS mutant indicated the involvement of additional regulator(s). Regulation of pstSCAB also involves the global transcriptional regulator GlxR. Results DNA affinity chromatography identified the regulator of acetate metabolism RamB as a protein binding to pstS promoter DNA in vitro. Gel mobility shift assays and mutational analysis of the pstS promoter region revealed that RamB binds to two sites localized at positions −74 to −88 and −9 to +2 with respect to the transcriptional start site of pstSCAB. Reporter gene studies supported the in vivo relevance of both binding sites for activation of pstSCAB by RamB. DNA microarray analysis revealed that expression of many Pi starvation genes reached higher levels during the Pi starvation response on minimal medium with glucose as sole carbon source than in Pi starved acetate-grown C. glutamicum cells. Conclusions In C. glutamicum, RamB is involved in expression control of pstSCAB operon. Thus, transcriptional regulation of pstSCAB is complex involving activation by the phosphate-responsive two-component regulatory system PhoSR and the regulators of carbon metabolism GlxR and RamB

Thermal effects on dilepton production from π−π\pi-\pi annihilation

We study finite temperature effects on dilepton production from pion-pion annihilation in hot hadronic matter. The softening of the pion dispersion relation in a medium is found to enhance the production rate of dileptons with invariant masses in the region of $2m^*_\pi(T)<M<m_\rho$. On the other hand, the reduction of the pion electromagnetic form factor at finite temperature leads to a suppression of the dilepton production rate. Including both effects, we have found that the dilepton yield is slightly enhanced in the invariant mass region $M= 270\sim 600$ MeV but is suppressed around the vector meson resonance. We further discuss the relevance of our results to recent experimental data from the S+Au collisions at CERN/SPS energies by the CERES collaboration.Comment: 11 pages + 3 figures (figures are not included but available on request), revte

JOINT SPECIFIC CONTRIBUTION OF MECHANICAL POWER AND WORK DURING ACCELERATION AND TOP SPEED IN ELITE SPRINTERS

The purpose of the study was to quantify and compare sprint mechanics of elite female sprinters (N=9; PB 11.4?0.2s) during acceleration (1st, 2nd, 3rd step) and top speed (‘flying 30m) running. Three dimensional kinetics and kinematics were measured on an IAAF indoor track armed with four force plates and 16 cameras. The comparison between the 1st, 2nd and 3rd step and the ‘flying 30m’ (vave= 9.0?0.2 ms-1) shows a progressive change in absorption and generation of mechanical power. Whilst the knee extensors where able to minimize energy absorption during acceleration, the ankle extensors showed a stretch-shortening cycle and a small absorption from the first step. This energy loss at the ankle joint does not necessarily leads to a decrease in sprint performance, it also offers the plantar flexors to work in an stretch-shortening cycle instead of concentric only mode

SPRINT START KINETICS: COMPARISON OF AMPUTEE AND NON-AMPUTEE SPRINTERS

The purpose of this study was to observe relationships between reaction forces measured with an instrumented force starting block, start performance (normalized average horizontal block power) and 100 m personal record times in 142 male and female able-bodied sprinters. Further, start kinetics of 7 amputee sprinters and ablebodied sprinters of similar 100 m performance level were compared. Amputee sprinters showed a reduced starting performance, which seems to be related to their lower capacity of creating high peak forces with their rear (affected) legs. In able-bodied athletes, starting performance was related to peak force production in the front and rear blocks, but also to the ability to apply these forces in a horizontal direction. The obtained dataset offers a strong potential for the use in performance diagnostics and feedback training