ALBERT

Notes: Already for a long time retailers have taken back products. In this paper we explore the factors contributing to the decision of combining vs separating inbound and outbound flows during the return handling process. We do so through a comparative analysis of the operations in nine retailer warehouses, which can be divided into three groups: food retailers, non-food store chains and mail order companies. We identify both aggravating factors and facilitating actions for return handling. Furthermore, we bring about recommendations for practice. At the end we put forward propositions that are useful in feeding studies on return handling efficiency. In particular, we conjecture over the impact that return volume and product diversity have on the decision for combining vs separating the reverse and forward flows.

Notes: 1 The present study aimed to evaluate the role of κ-opioid receptors at two peripheral sites, the vas deferens and the proximal colon, in κ-opioid receptor knockout mice. We investigated the role of the κ-opioid receptor in the vas deferens twitch response and in the colonic ‘off-contraction’, a rebound contractile response which follows the inhibitory response to low frequencies stimulation (10, 20, 30 Hz) and which has been suggested to ‘locally’ reproduce the contractile component of the peristaltic reflex. 2 Transmural stimulation of the vas deferens at lower frequencies (10 Hz, 10 V, 1 ms pulse trains lasting 0.5 s) evoked a contractile response that was significantly higher in the preparations from knockout mice because of lack of κ-opioid receptors than in wild type mice. A selective κ-opioid receptor agonist, U-50,488H, induced a dose-dependent inhibition of the electrically stimulated contraction in vas deferens. The percentages of reduction of the twitch response were significantly lower in knockout mice than in wild type mice after treatment with U-50,488H. The reduction of twitch response caused by U-50,488H was not reversed by administration of nor-binaltorphimine (nor-BNI) (5 × 10−6 m), a selective κ-opioid receptor antagonist, in preparations from both knockout mice and wild type mice. U-50,488H has no effect on postsynaptic adrenergic receptors, as its administration did not affect the direct contractile response to noradrenaline. 3 Transmural stimulation (5 Hz, 20 V, 2 ms pulse trains lasting 30 s) induced inhibition of spontaneous activity of colonic strips during the period of stimulation, followed by an ‘off-contraction’ after the cessation of stimulation. The statistical evaluation of the ‘off-contraction’ responses between the two strains showed no significant difference. The off-contraction, measured in specimens from knockout mice, was inhibited concentration-dependently by U-50,488H (P 〈 0.01) and significantly less than from wild type mice. 4 The effect of U-50,488H was not reversed by administration of nor-BNI (5 × 10−6 m), either in preparations from knockout mice or from wild type mice. 5 Our data may suggest that κ-opioid receptors are involved in some peripheral responses to the nerve stimulation, as indicated by the effect of U-50,488H, a selective κ-opioid receptor agonist. However, the involvement of κ-opioid receptor was also present, although less apparent, in κ -opioid receptor knockout mice, suggesting either that this drug acts not only on κ-opioid receptors but also on other receptor sites, such as κ-like receptors. An alternative interpretation can be related to a sodium channel blocking action of U-50,488H, which could explain the inhibitory effects of twitch response still present but less evident in knockout strain and the lack of effect of the antagonist nor-BNI.

Notes: A new filtering technique for single-fold wide-angle reflection/refraction seismic data is presented. The technique is based on the wavelet decomposition of a set of adjacent traces followed by coherence analysis. The filtering procedure consists of three steps. In the first, a wavelet decomposition of traces into different detail levels is performed. In the second, the coherence attributes for each level are evaluated by calculating cross-correlation functions of detail portions contained in a space–time moving window. Finally, the filtered traces are obtained as a weighted reconstruction of the trace details. Each weight is obtained from the coherence-attributes distribution estimated in a proper interval. A sequence of tests is then conducted in order to select possible optimum or unsuitable wavelet bases. The efficiency of the filter proposed was assessed by calculating some properly designed parameters in order to compare it with other standard de-noising techniques. The proposed method produced a clear signal enhancement in high-density wide-angle seismic data, thus proving that it is a useful processing tool for a reliable correlation of seismic phases.

Notes: : :Soymilk (SM), a potential culture medium for applying conductimetric techniques to evaluate the behavior of probiotic lactobacilli and bifidobacteria was examined. Media LAPTg, LM, and SM was standardized for the growth of Lactobacillus fermentum and Bifidobacterium longum. A dilution of 1/100 for L. fermentum and 1/1 for B. longum were considered optimal to obtain a detection time (DT) between 5 and 10 min. The relationship between the initial number of cells and the DT was linear throughout the incubation period considered (40 h). The effect of temperature (30, 37, and 42 °C) on the metabolic activity of the cells was also determined after 40 h of fermentation. The higher metabolic changes were observed at 42 °C with conductance values from 600 to 800 μS and DT of 5-7 min. Results obtained were confirmed by viable counts.

Notes: Warehousing is becoming more and more a critical activity in the supply chain to outperform competitors on customer service, lead times, and costs. However, if warehousing is to be a source of competitive advantage, then the implementation of a warehouse management information system (WMS) is a necessary condition to achieve efficiently the high performance of warehousing operations required in today's marketplace. A major practical question is then whether a given warehouse should implement a standard or a tailor-made WMS. A standard WMS offers many advantages; it is a proven solution, it is less costly, the implementation lead time is shorter, and the after-sales service is better. On the other hand, a standard WMS remains largely making compromises between the way a warehouse wants to work and the way the system allows the warehouse to work. In certain environments, such compromises might seriously degrade warehouse performance, in which case it then seems better to implement a tailor-made WMS. To answer the above question, we conducted an exploratory field study of warehouses with recently implemented WMSs to first understand the empirical reality and then build up a theory linking the constructs warehouse complexity and warehouse planning and control structure. Warehouse complexity refers to the number and variety of items to be handled, the degree of their interaction, and the number, nature, i.e. technologies used, and variety of processes, determined among others by the warehouse's position in the logistic chain and the nature of its market. Warehouse planning and control structure refers to the management functions that plan, direct, coordinate and control the flow of goods through the warehouse, from the time of receiving to the time of shipping. It is strongly related to the WMS in use. We found that the number of orderlines to be processed per day and the number of stock-keeping units are the two main observable aspects of warehouse complexity; that the more complex the warehouse is, the more tailor-made the planning and control structure should be; that for simple warehouses a standardized planning and control structure suffices; and that the design of a new-to-build warehouse should be carried out in close concert with the design of the warehouse planning and control structure.

Notes: Solid wastes are today one of the worst problems in the word, mainly because of the increase in volume and the high capacity of environmental contamination. The aim of this work is to analyze the possibility of use sawing granite wastes as alternative ceramic raw materials for the production of bricks and roof tiles. Samples were collected from wastes of several granites companies from the northeast region of Brazil. They were submitted to particle size and mineralogical characterization. Some ceramic compositions were prepared with granite waste and submitted to technological tests. The results indicated that the wastes have particle size distribution and mineralogical composition similar to conventional non-plastic ceramic raw materials. These wastes can be used in substitution of conventional raw materials in ceramic formulations in proportions up to 50 per cent. This can be important to save traditional raw materials from the region and decreasing the aggression to the environment.

Notes: The project IDEA - Interactive Database for Energy-efficient Architecture - is a multinational collaborative project to build a European knowledge base on advanced energy conscious building design. At the core of this project are two earlier multimedia developments, the Swiss program DIAS and the German adaptation NESA which present the principles and applications of solar architecture in the respective national contexts. IDEA aims to improve know-how of European professionals and exchange of information between them. The database includes information on exemplary buildings, their technical concepts and on other specific conditions. IDEA presents the existing state of the art in the field of energy-efficient architecture by means of a multimedia database of built examples, an encyclopedia of design concepts and a set of interactive design support tools. The built examples have been selected from around Europe. IDEA assembles technical information on materials and energy-related standards and regulations and provides climatic data from all relevant European regions.

Notes: This paper describes the typical specifications and features of a novel low-cost and high-performance universal transducer interface (UTI). The easy-to-use interface enables fast prototyping of systems with capacitive sensors, platinum resistors, thermistors, resistive bridges and potentiometers. It is shown that a high accuracy and reliability can be obtained by applying a combination of advanced techniques, such as, auto-calibration, advanced chopping and dynamic element matching. Examples of smart sensor systems, using the UTI and the popular microcontrollers, Intel 87C51FX and PIC16C73, have been presented.

Notes: Physically disabled women today have to face the inconvenience of shopping for their own as well as their families’ clothes and the inability of finding fashionable clothes that fit any disability. A total of 40 physically disabled women between the ages of 21 years and 60 years were interviewed on the problems they experienced when shopping for fashionable clothes that fit their disabilities. A total of 40 clothing shops were observed to get information on the extent to which the shops cater for the needs of the physically disabled consumer. Results from the interviews showed that the majority of physically disabled female clothing consumers experienced major problems in finding fashionable clothes that fit their disabilities. It was also clear that these women experienced problems with unusable access routes, unsuitable parking lots, display racks that are too high, spaces between racks that are too narrow, inadequate space in fitting rooms and a lack of assistance in shops. The observations were compared with the complaints the women had and it was found that these women had not overestimated their problems.