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We study the problem of estimating the fundamental frequencies of a signal containing multiple harmonically related sinusoidal components using a novel block sparse signal representation. An efficient algorithm for solving the resulting optimization problem is devised exploiting a novel variable step-size alternating direction method of multipliers (ADMM). The resulting algorithm has guaranteed co
Integrins are ubiquitous transmembrane receptors that play crucial roles in cell-cell and cell-matrix interactions. In this study, we have determined the effects of the loss of beta1 integrins in keratinocytes in vitro and during cutaneous wound repair. Flow cytometry of cultured beta1-deficient keratinocytes confirmed the absence of beta1 integrins and showed downregulation of alpha6beta4 but not
While originally, protein-energy deficiency was considered the main factor of malnutrition, it is now understood that micronutrient deficiencies play a fundamental role in a variety of health and disease outcomes. Zinc and iron deficiencies are still highly prevalent in low-income countries, whereas insufficient intakes and diets with low mineral absorption are the major causes. Sustainable and fe
Membrane proteins play several important roles in a cell. Among these proteins are aquaporins (AQPs) and transient receptor potential (TRP) ion channels that mediate water transport, temperature and noxious chemical sensation, respectively. The function of some AQPs, for example the spinach isoform SoPIP2;1 is regulated by pH, phosphorylation and heavy metals such as mercury. However, the mechanis
The present work was aimed at developing industrial S. cerevisiae strains with improved tolerance to two types of stressors encountered during the fermentation of lignocellulosic biomass that affect ethanol yield and productivity, namely hydrolysate-derived inhibitors and high temperature, and at understanding the response of yeast and mechanisms of adaptation to such stressors. In one part of the
Fishing access agreements have been widely criticized but there is little quantitative evidence of their effects on the economies of developing countries. The aim of this paper is to investigate the influence of the European Union’s fishing access agreements on 15 African countries’ fish exports to the OECD. More specifically, we investigate the effects on the extensive and intensive margins of tr
Double U-pipe boreholes are the second most used type of ground heat exchangers after single U-pipe boreholes. The borehole thermal resistance is a key design and performance parameter for the double U-pipe boreholes. Another parameter that is particularly important for double U-pipe boreholes is the internal thermal resistance between the U-pipes. There is, however, a general lack of methods that
Objectives Depression is a common illness with substantial economic consequences for society and a great burden for affected individuals. About 30% of patients with depression do not respond to repeated treatments. Psychiatric comorbidity is known to affect duration, recurrence and treatment outcome of depression. However, there is a lack of knowledge on the extent to which psychiatric comorbidity
Biomass densification elevates the bulk density of the biomass, providing assistance in biomass handling, transportation, and storage. However, the density and the chemical/physical properties of the lignocellulosic biomass are affected. This study examined the changes introduced by a briquetting process with the aim of subsequent processing for 2nd generation bioethanol production. The hydration
microRNAs (miRNA) are small, noncoding RNAs that bind to messenger RNAs (mRNAs) and regulate their activity. They are, therefore, important posttranscriptional regulators. In recent years it has become clear that miRNAs regulate large genetic networks, rather than single genes, and that one gene can be targeted by several miRNAs. To understand the role of miRNAs in cells or tissues, it is therefor
Purpose: To quantify fixation stability in patients with neovascular age-related macular degeneration (nAMD) at baseline, 3 and 6 months after anti-vascular endothelial growth factor (anti-VEGF) treatment and furthermore asses the implications of an unsteady fixation for multifocal electroretinography (mfERG) measurements. Methods: Fifty eyes of 50 nAMD patients receiving intravitreal anti-VEGF tr
Raoul Wallenberg Institute of Human Rights and Humanitarian Law Stora Gråbrödersgatan 17 B | P.O. Box 1155 SE-221 05, Lund, Sweden | Phone +46 46 222 12 00 | www.rwi.lu.se Displacement in the Context of Disasters and Climate Change in Asia and the Pacific Regional Launch 2020 Concept Note 1 December 2020, 01.30 pm - 04.00 pm (GMT+7) Location: Bliston Suwan Park View Hotel & Serviced Residence (Ban
An honest communication of uncertainty about quantities of interest enhances transparency in scientific assessments. To support this communication, risk assessors should choose appropriate ways to evaluate and characterize epistemic uncertainty. A full treatment of uncertainty requires methods that distinguish aleatory from epistemic uncertainty. Quantitative expressions for epistemic uncertainty
The question whether a single extreme climate event, such as a hurricane or heatwave, can be attributed to human induced climate change has become a vibrant field of research and discussion in recent years. Proponents of the most common approach (probabilistic event attribution) argue for using single event attribution for advancing climate policy, not least in the context of loss and damages, whi
In recent decades, a ‘Haitian Turn’ has emerged as both academic and public readerships in the anglophone sphere have been flooded by a wave of essays, articles, and monographs on the Haitian Revolution (1791–1804). At the epicentre of the present study is one of the major interpretations of the Haitian Revolution in the Haitian Turn, which I call the ‘universality paradigm’. The universality paraIn recent decades, a ‘Haitian Turn’ has emerged as both academic and public readerships in the anglophone sphere have been flooded by a wave of essays, articles, and monographs on the Haitian Revolution (1791–1804). At the epicentre of the present study is one of the major interpretations of the Haitian Revolution in the Haitian Turn, which I call the ‘universality paradigm’. The universality para
Hotspot tracks (chains of seamounts, ridges, and other volcanic structures) provide important records of plate motions, as well as mantle geodynamics, magma flux, and mantle source compositions. The Tristan-Gough-Walvis Ridge (TGW) hotspot track, extending from the active volcanic islands of Tristan da Cunha and Gough through a province of guyots and then along Walvis Ridge to the Etendeka flood b
The new genus Kudratoviella for the former Caloplaca zeorina group having the highest level of bootstrap support in the phylogenetic tree of the Teloschistaceae, based on combined dataset of nrITS, 28S nrLSU DNA and 12S SSU mtDNA sequences, which does not belong to any other earlier proposed genera of the subfamily Xanthorioideae, is described. The genus Oceanoplaca Arup, Søchting et Bungartz foun
Denmark is currently undertaking extensive groundwater mapping surveys in designated water interest areas. The mapping objectives include vulnerability assessments, delineation of existing aquifers, and localization of new deeper lying aquifers. Airborne electromagnetics are employed for regional mapping to depths of hundreds of meters. Resistivity profiling and pulled-array geo-electrics are util
Purpose: The purpose of this paper is to investigate the heat and mass transport characteristics in microchannel reactors with non-uniform catalyst distributions. Design/methodology/approach: A two-dimensional model is developed to study the heat and mass transport characteristics in microchannel reactors. The heat and mass transport processes in the microchannel reactors with non-uniform catalyst
