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Dynamic quantum effects in biological systems is a hotly debated question, which since recently has been experiencing renewed wave of broad attention [1]. This discussion was initiated by the application of the multidimensional spectroscopy techniques for investigating dynamics in biological complexes. Is nature really optimized to use non-trivial quantum effects, like dynamically evolving coheren
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Two-dimensional femtosecond broadband electronic spectroscopy was used to simultaneously probe parallel pathways of energy transfer in the major light harvesting complex of Photosystem II from plants. Sub-100 femtosecond relaxation between delocalized excitonic states on highly coupled clusters of chlorophylls and several hundred femtosecond to picosecond components of relaxation between clusters
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Two-dimensional optical spectroscopy is used to probe electronic couplings and ultrafast dynamics in photosynthetic light-harvesting complexes. Data and analysis reveal contributions to line-broadening, signatures of weakly- and strongly-coupled chromophores, and pathways of energy transfer.
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Mot bakgrund av tilltagande ekologiska kriser, växande socioekonomiska ojämlikheter och ett klimat i förändring har behovet av att omvandla jordbrukssystem mot hållbarhet och rättvisa blivit alltmer akut. En sådan omvandling hindras emellertid ofta av djuprotade strukturer och institutionella arrangemang som gynnar snävt definierade föreställningar om produktivitet och marknadseffektivitet. DärigeAmid escalating ecological crises, widening socio-economic inequalities, and intensifying climate change, the imperative to transform agricultural systems towards sustainability and equity has become increasingly urgent. Yet suchtransformation is often hindered by entrenched institutional and structural arrangements that privilege narrowly defined notions of productivity and market efficiency, the
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Flexural bond strength is a key parameter influencing the structural performance of masonry, yet its accurate prediction remains challenging due to the complex interplay of multiple material and testing variables. This study presents a machine learning (ML) framework for predicting flexural bond strength using a harmonized database comprising 1041 test specimens. Additionally, a review of 67 publi
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This study investigates the impact of brick types and workmanship on water penetration in brick masonry veneer walls. Masonry specimens, built by two masons using solid and perforated bricks with two different laying methods, were subjected to an average water spray rate of 28 l/m²·h. Results indicate that, on average, the water penetration rate was approximately twice as high in solid bricks as i
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From the mid-eighteenth century, anecdotesand anecdote collections proliferated in Swedishpublications. This essay explores the evolvingrole of anecdotes in relation to broader shifts inthe media landscape, particularly regarding his-toriographical practices, the public sphere, mar-ket dynamics, and readership patterns. In theeighteenth century, the anecdote collections ofCarl Christoffer Gjörwell
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This article puts into dialogue the concept of cultural landscape originating in Anglophone human geography with the notion of territorio coming from Latin American critical human geography. Through a case study of mangrove restoration in the Colombian Caribbean, we examine how climate change politics and policies affect unequal contexts, reshaping environmental, social, and spatial relations. We
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Climate change-induced water insecurity impacts are unevenly distributed across the world, with Africa expected to bear the highest burden of water scarcity globally. This chapter examines how climate change acts as a compounding factor that exacerbates the existing vulnerabilities in the Sahel region and creates new challenges for water security and irrigation management. With populations in the
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During 2024, an intensive 114CO2 flask sampling campaign was conducted at 12 sampling stations across Europe as part of the CO2MVS Research on Supplementary Observations (CORSO) project. These 114CO2 samples, combined with CO2 atmospheric measurements, are intended to enhance the estimation of fossil CO2 emissions over Europe through inverse modeling. In this study, we perform a series of Observin
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Occurring in 2015/16, the strong El Niño has been shown to significantly influence the pantropical carbon fluxes with multiple lines of evidence. However, a comprehensive understanding on the regional and vegetation-specific net ecosystem productivity (NEP) in response to this El Niño event and its recovery trajectories remain unclear. We revisited the controlling factors in the recovery of pantro
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Regular, vigorous physical activity can have a significant impact on cardiac function, leading to cardiac morphological alterations that may be challenging to distinguish from pathological changes. Therefore, new screening methods are needed to accurately differentiate between adaptive changes and pathological alterations in athletes. Vortex formation time (VFT) is an emerging method that shows po
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Objectives: The aim of the present study was to assess if vortex formation time (VFT) as a measurement of left ventricular (LV) diastolic function is affected by food intake and related to age and sex. Methods: Healthy participants were divided into two age groups: younger (median age: 25 years) and older (median age: 68 years). Transthoracic echocardiography (TTE) examinations were performed duri
