Sökresultat

Filtyp

Din sökning på "*" gav 549806 sökträffar

Monitoring data for anomaly detection in cloud-based systems : a systematic mapping study

Context: Anomaly detection is crucial for maintaining cloud-based software systems, as it enables early identification and resolution of unexpected failures. Given rapid and significant advances in the anomaly detection domain and the complexity of its industrial implementation, an overview of techniques that utilize real-world operational data is needed. Aim: This study aims to complement existin

Photoinduced Charge Transfer at the D/A Interfaces of Isomerized DSMAs Regulated through an External Electric Field

Developing novel organic photovoltaic materials for organic solar cells (OSCs) requires precise characterization of their charge transfer states to optimize the photoinduced charge transfer mechanisms within the photoactive layer. The microscopic photoelectric properties of the S-shaped (DYA-I-S) and O-shaped (DYA-I-O) conformations of dimeric small molecule acceptors (DSMAs) are analyzed through

Time reflexivity in social work interaction: A literature review on migration, time and temporality for social work practice

Introduction. In this article we explore how findings from existing research on time, temporality and migration can be relevant to social work practice and inform social workers’ interaction with migrating individuals. In social work literature, time mainly appear as part of the procedural knowledge as organizationally decided time frames and deadlines for work which is sometimes internalized and

Coherent nuclear motion and exciton state dynamics in photosynthetic light-harvesting pigment proteins

We have used approximately 40 fs pulses from a Ti:sapphire laser to investigate the ultrafast energy transfer and relaxation dynamics in the light-harvesting pigment-proteins of photosynthetic purple bacteria. Our results reveal two new features, not earlier observed in light-harvesting pigments: (1) ultrafast relaxation characterized by a time constant of approximately 20 fs, which we interpret a

Vibrational dynamics in the light-harvesting complexes of the photosynthetic bacterium Rhodobacter sphaeroides

Using ≈ 40 fs pulses we have observed coherent nuclear motions in intact membrane bound photosynthetic light-harvesting pigment-protein complexes. Computer simulations based on the harmonic Franck-Condon approximation and the Langevin equation describe qualitatively well the temperature and pulse wavelength dependence of the oscillations, indicating the possibility to observe higher harmonics of t

Direct Energy Transfer from the Peripheral LH2 Antenna to the Reaction Center in a Mutant of Rhodobacter sphaeroides That Lacks the Core LH1 Antenna

The light-harvesting apparatus of the photosynthetic bacterium Rhodobacter sphaeroides is composed of a peripheral LH2 complex which directs excitation energy to the LH1/reaction center core. The puf BA genes encoding the LH1 polypeptides have been deleted, producing a photosynthetically-competent strain which contains LH2 and reaction centers. Time-resolved absorption and fluorescence measurement

Vägen till ett ekonomipris: Spår i Lennart Jörbergs korrespondens

The road to a Nobel Prize is usually long and winding. This article tracks theroad to Robert Fogel’s and Douglass North’s shared prize in economics in 1993through Lennart Jörberg’s correspondence from 1965 to 1989. Jörberg, for almosttwenty years professor and head of the Department of Economic History at LundUniversity, had during two year-long visits in the United States in the 1950s and1960s de

Microscale Bone Alterations in a Mouse Model of Relative Energy Deficiency in Sport

Kan energibalansen vid träning påverka benkvalitet? Hur påverkas de små byggstenarna i benet när kroppen får för lite energi men samtidigt utsätts för hård träningsbelastning? Denna studie undersöker hur man kan visualisera både kollagenfibrer samt bencellernas kommunikationsnätverk i benvävnad hos möss med, respektive utan relativ energibrist (RED-S). Relativ energibrist inom idrott (RED-S) uppRelative Energy Deficiency in Sport (RED-S) is a condition arising when dietary energy intake is insufficient to meet the combined demands of training and normal physiological functions. RED-S negatively impacts bone health, and increases the risk of stress fractures. Yet, its effects on bone matrix organization and overall bone quality is not well understood. Collagen and the osteocyte cells'

Antibiotic Prescribing in Primary Care - Studying the Management of Infections using Real-World Data

De allra flesta läkarbesöken för infektioner sker i primärvården. En hög och olämplig antibiotikaförskrivning innebär risker inte bara för biverkningar för patienten utan också för ökad antibiotikaresistens. Stora ansträngningar har gjorts för att minska antibiotikaförskrivning. Under covid-19-pandemin såg vi att antalet infektioner och antalet antibiotikaförskrivningar halverades. Hur kan vi fortThere is considerable variation in antibiotic prescribing rates among physicians, primary healthcare centres, and countries. If the variation could be reduced, the antibiotic prescribing could decrease.Methods. The thesis is based on real-world data from two databases containing infection visits: The Kronoberg Infection Database in Primary Care (infection visits in the Kronoberg region from 2006 t

Perioperative management of patients undergoing major reconstructive head and neck surgery

Abstract: For patients with locally advanced head and neck tumours or other defects, the preferred curative treatment is extensive reconstructive surgery using free microvascular flap(s), oftentimes followed by postoperative radiotherapy. The procedure offers superior functional and aesthetic advantages, but the treatment course is long and complex and burdened with a significant risk of complicat

Smart‐Mix or Stupid Assurances? : How Businesses Used Voluntary Initiatives to (De)Legitimize Supply Chain Regulation

Mandatory human rights and environmental due diligence (HREDD) policies seem to represent a pathbreaking shift from voluntary measures to binding rules for global supply chains. Yet these policies endorse a “smart-mix” of voluntary and mandatory measures, and risk over-reliance on questionable private-sector assurances. In this paper, we ask how businesses framed these private/voluntary efforts in

The evolution of executive functions in Archosauria : Visual working memory and motor inhibition across ectotherms and endotherms

Executive functions are a set of cognitive skills enabling goal‑directed behaviours. Both mammals and birds have highly proficient executive functions, despite diverging from each other around 360 million years ago. This cognitive convergence is due to both taxa being tachymetabolic endotherms. They can maintain a stable and elevated body temperature with a high metabolism. However, in order to su