Purpose – The purpose of this paper is to present findings concerning what logistics managers perceive as being difficult and challenging, and what implications this may have for further advances in the logistics discipline. Design/methodology/approach – The point of departure for this study was to reflect on perceived problems, uncertainties, trends, and solutions in logistics, and how they are h

(+)-5,6-Epoxy-bicyclo[2.2.1]heptane-2-one, (+)-1, and endo-(−)-5,6-epoxy-bicyclo[2.2.1]heptane-2-ol, endo-(−)-2, were obtained by kinetic resolution of rac-1 by asymmetric bioreduction catalyzed by whole cells of a genetically engineered Saccharomyces cerevisiae yeast strain. The strain, TMB4100, had 1% phosphoglucose isomerase (PGI) activity and overexpressed a specific short-chain dehydrogenase,

During recent years, mobile phone companies have experienced market-related difficulties that result in increasing competition globally. In an attempt to maintain or increase their market share, enterprises reorganize their resources and employ new technologies to sharpen their competitive edges. Moreover, with the globalization, more and more companies become multi-sited. Efficient and timely col

Bodnar and Schmid (2008) derived the distribution of the global minimum variance portfolio weights and obtained the distribution of the test statistics for the general linear hypothesis. Their results are obtained in the case when the number of observations n is bigger or equal than the size of portfolio k. In the present paper, we extend the result by analyzing the portfolio weights in a small sa

Spectroscopic investigations of highly charged ions have been performed in the VUV, UV and visible spectral regions using mainly the beam-foil technique. New 2s22px3l levels have been established in N and O-like Si and S, together with many transitions between these levels. Several of these lines have also been identified in the solar corona spectra recorded by the SUMER/SOHO instrument. In Mg-lik

Energy efficiency has gained attention as an important means of ensuring energy supply, fostering countries’ competitiveness and cost-effectively mitigating CO2 emissions. Yet, evaluations of energy efficiency policies are often lacking or insufficient. Moreover, researchers have tended to overlook these types of policies in non-OECD countries, although at this very moment many of these countries

An audio-tactile interactive tourist guide is demonstrated, including the possibility to be guided to points of interest. In contrast with the key-hole like experience of on-screen augmented reality, this guide makes use of the non-visual modalities to create a more immersive augmented experience. Sound windows from the past and verbal historical information complement discrete tactile guidance al

I en berömd formulering skriver den amerikanske sociologen Howard S. Becker (1963/1991: 17) att avvikande inte ska ses som vare sig patologiskt (sjukligt) definierat eller statistiskt definierat; det är i stället en fråga om regelbrott. Den som avviker bryter mot en uttalad eller underförstådd regel. Vidare skapas regler på särskilda sätt i samhället, menar Becker: vuxna gör regler för barn, män g

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In this work the intermetallic systems formed by transition-metals from group 5 to 9 with Ga, In and Zn have been experimentally and theoretically studied in detail. Syntheses, compositional analyses, X-ray and neutron diffraction (single crystal as well as powder) and measurements of physical properties, e.g. magnetic susceptibility and resistivity has been made for all compounds. Electronic-stru