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Dispersive liquid-liquid microextraction (DLLME) and high performance liquid chromatography-diode array detection (HPLC-DAD) was presented for extraction and determination of Irganox 1010, Irganox 1076 and Irgafos 168 (antioxidants) in aqueous samples. Carbon tetrachloride at microliter volume level and acetonitrile were used as extraction and dispersive solvents, respectively. The main advantages
This paper proposes an alternative perspective on service quality management (SQM) based on the ecosystem of complex and dynamic service environments. First, the ways in which systems thinking and core principles of Quality Management evolved are analysed in order to understand the past, present and the future. Then, by analysing the theories, models and applications of SQM systems and business ec
A trend, which can be noted in the field of cash handling, is the increase of ATMs that are able to recirculate banknotes. Cash recycling means that notes deposited by one customer are then available for withdrawal by another from the same machine. Cash recycling has both economic advantages and reduces environment impact, as transport to machines for filling and emptying them can be decreased. Wh
Fluxes of methane, CH4, were measured with the eddy covariance (EC) method at a small boreal lake in Sweden. The mean CH4 flux during the growing season of 2013 was 20.1 nmol m−2 s−1 and the median flux was 16 nmol m−2 s−1 (corresponding to 1.7 mmol m−2 d−1 and 1.4 mmol m−2 d−1). Monthly mean values of CH4 flux measured with the EC method were compared with fluxes measured with floating chambers (
Nu påbörjas årets lönerevision vid Luleå tekniska universitet som avser perioden 2024–10–01 –– 2025–09–30. Även i år har vi ett sifferlöst avtal. För medlemmar i Saco tillämpas på LTU lönesättande samtal vilket innebär att du som anställd i samband med lönerevisionen ska ha två samtal med din närmaste chef. Det första samtalet är tänkt att vara ett ömsesidigt utbyte av information avseende din pre
LU Holding AB 556500-1467 Box 117, SE - 221 00 Lund, Sweden, Visiting address The Spark, Medicon village, Scheeletorget 1, Lund Telephone +46 46-222 00 00 Internet www.innovation.lu.se 1 A" rsredovisning för LU Holding AB 556500-1467 Räkenskapsåret 2023-01-01 – 2023-12-31 Transaktion 09222115557517147306 Signerat CW, KE, JA, HP, CE, UR, RM, EU, ME LU Holding AB 556500-1467 Box 117, SE - 221 00
Agricultural expansion and intensification have boosted global food production but have come at the cost of environmental degradation and biodiversity loss. Biodiversity-friendly farming that boosts ecosystem services, such as pollination and natural pest control, is widely being advocated to maintain and improve agricultural productivity while safeguarding biodiversity. A vast body of evidence sh
Lägg till titel FÖRSÄTTSSIDA STYRDOKUMENT Kvalitetspolicy för Lunds universitet Typ av styrdokument: Policy Definition av typen av styrdokument: En policy uttrycker ledningens övergripande viljeriktning eller värden som ska beaktas inom det område policyn omfattar och sätter ramarna för ett visst handlande och utgör en stark rekommendation om ett visst handlingssätt. Beslutsfattare: Universitetsst
Herein we demonstrate the favorable synergistic effect of an NH4Cl additive and DMSO solvent on 2D perovskites that are synthesized at room temperature. Interestingly, we observe the spontaneous formation of 3D phases within either NH4Cl or DMSO treated 2D perovskites, which plays a pivotal role in facilitating charge transport. It is revealed that NH4Cl increases charge carrier lifetime and passi
Background: The identification of mismatch-repair (MMR) defective colon cancer is clinically relevant for diagnostic, prognostic and potentially also for treatment predictive purposes. Preselection of tumors for MMR analysis can be obtained with predictive models, which need to demonstrate ease of application and favorable reproducibility. Methods. We validated the MMR index for the identification
Natural resources can have a powerful impact on the public budget but may also hinder the development of other sources of revenue, thus limiting the long-term development of fiscal capacity in resource-rich countries. This article evaluates both possible effects bycomparing the long-term evolution (1850s-1930s) of public revenues in Andean (Bolivia,Chile and Peru) and Nordic (Norway and Sweden) co
Some political parties employ clientelist practices to gain voter support. Yet as more citizens now vote from abroad, little is known about parties engaging in clientelism domestically versus transnationally. We propose parties adopt either a replication or differentiation approach, meaning they apply similar or different campaigning strategies abroad. Using a large-N sample of voter turnout in So
Studies of medium-induced QCD radiation usually rely on the calculation of single-gluon radiation spectrum off an energetic part on traversing an extended colored medium. Recently, the importance of interference effects between emitters in the medium has been explored. In this work we extend previous studies by calculating the single-gluon coherent spectrum off an antenna consisting of a massive q
In conventional seismic surveys, there is a waiting time between sequentially fired shots. This time is determined such that the deepest reflection of interest is recorded before the following source is fired. In a survey with simultaneous or blended sources, the waiting time between the firing of shots is not dependent on the deepest reflection of interest, it is usually much shorter and/or can h
The transition towards sustainable rail transportation has positioned hydrogen as a promising alternative to traditional fossil fuels. This thesis focuses on the analysis of design for onboard and offboard hydrogen storage systems for light trains, which plays an important role in facilitating the adoption of hydrogen-powered rail vehicles. It explores state-of-the-art hydrogen storage technolo
