Many animals avoid detection or recognition using camouflage tailored to the visual features of their environment.123 The appearance of those features, however, can be affected by fluctuations in local lighting conditions, making them appear different over time.45 Despite dynamic lighting being common in many terrestrial and aquatic environments, it is unknown whether dynamic lighting influences t

ChatGPT has gained increased attention as an artificial intelligence (AI)-based tool in the field of tourism and hospitality education in recent years. This study investigates the impact of perceived ease of use, perceived usefulness and authenticity on student attitude and intention to use ChatGPT by incorporating the concept of authenticity into the technology acceptance model (TAM) theoretical

In this paper, we address the multi pursuer version of the pursuit evasion problem in polygonal environments. It is well known that this problem is NP-hard, and therefore we seek efficient, but not optimal, solutions by relaxing the problem and applying the tools of Mixed Integer Linear Programming (MILP) and Receding Horizon Control (RHC). Approaches using MILP and RHC are known to produce effici

In this paper we give a distributed solution to the problem of making a team of non-holonomic robots achieve the same heading (attitude consensus problem) using vision sensors with limited field of view. The use of cameras with constrained field of view limits the information the robots perceive compared to other omnidirectional sensors. This makes the consensus problem more complicated, because t

Background and purpose: The Swedish Lymphoma Register (SLR) was initiated in the year 2000 with the aim to monitor quality of care in diagnostics, treatment and outcome of all lymphomas diagnosed nationally among adults. Here, we present the first systematic validation of SLR records as a basis for improved register quality and patient care. Patients and methods: We evaluated timeliness and comple

Background: Nigeria is a major contributor to the global malaria burden. The genetic diversity of malaria parasite populations as well as antibody responses of individuals in affected areas against antigens of the parasite can reveal the transmission intensity, a key information required to control the disease. This work was carried out to determine the allelic frequency of highly polymorphic Plas

Many important problems involving a group of unmanned ground vehicles (UGVs) are closely related to the multi traviling salesman problem (m-TSP). This paper comprises a comparative study of a number of algorithms proposed in the litterature to solve m-TSPs occuring in robotics. The investigated algoritms include two mixed integer linear programming (MILP) formulations, a market based approach (MA)

Unmanned Ground Vehicles (UGVs) equipped with surveillance cameras present a flexible complement to the numerous stationary sensors being used in security applications today. However, to take full advantage of the flexibility and speed offered by a group of UGV platforms, a fast way to compute desired camera locations to cover an area or a set of buildings, e.g., in response to an alarm, is needed

The spatial impulse response (IR) interpolation problem is of general interest, e.g. for imaging of subsurface structures based on seismic waves, rendering of audio and radar IRs, as well as for numerous spatial audio applications. A commonly used model represents the occurring reflections as equivalent source positions, often being determined using a sparse re-construction framework employing spa

Unmanned ground vehicles (UGVs) equipped with surveillance cameras present a flexible complement to the numerous stationary sensors being used in security applications today. However, to take full advantage of the flexibility and speed offered by a group of UGV platforms, a fast way to compute desired camera locations that cover or surround a set of buildings e.g., in response to an alarm, is need

The estimation of impulse responses (IRs) is fundamental to various audio applications, including active noise control, telecommunication, and sound zone control. Despite its long history, estimating impulse responses remains challenging when dealing with short signals and with signals having poor spectral excitation. However, in many applications the source is moving such that one has access to s

Artikeln utforskar den snabba och COVID-19 pandemiframkallade migrationen från campus till digital undervisning 2020–2021. Migrationsprocessen erbjuder en möjlighet att undersöka flera viktiga frågor relaterade till digital undervisning, lärande och utbildning. Baserat på vår studie av situationen för School of Social Work vid Tata Institute of Social Sciences i Mumbai, Indien, och Socialhögskolan

The Glossary on good practices in the field of social work and human mobility is the resultof the Global-ANSWER Network’s search for consensus on the conceptualisation and methodo-logy of social interventions with migrants and applicants for international protection. The aim isto bring together the key concepts around which this research project revolves, supported bythe interdisciplinary and inte

Endomucin (EMCN) currently represents the only hematopoietic stem cell (HSC) marker expressed by both murine and human HSCs. Here, we report that EMCN+ long-term repopulating HSCs (LT-HSCs; CD150+CD48−LSK) have a higher long-term multi-lineage repopulating capacity compared to EMCN− LT-HSCs. Cell cycle analyses and transcriptional profiling demonstrated that EMCN+ LT-HSCs were more quiescent compa

Water resources are fundamental to life, ecosystems, and human development. In an era of climate change and increasing water scarcity, effective management of these resources is crucial, particularly in cold regions where glaciers and snow play vital roles in hydrological cycles. Understanding and accurately modelling these complex systems is essential for sustainable water resource management, cl

Floden av böcker om Adolf Hitler, en av världshistoriens mest maniska maktspelare, förefaller outsinlig. Hitler och nazismen sysselsätter ständigt nya generationer av historiker. Flödet av vittnesmål från dem som drogs in i Hitlers trollkrets när det begav sig har däremot av naturliga skäl sinat. De flesta nazikoryféerna – med Albert Speer som det stora undantaget – skrev inte ner sina minnen av d

This book presents a critical examination of Hume's views on the subject of freedom and moral responsibility. It is widely held that Hume's discussions “Of liberty and necessity,” as presented in both the Treatise and first Enquiry, constitute the classical statement of the “compatibilist” position – the view that freedom and moral responsibility cannot only be reconciled with causation but actual

Degrowth promises to make human life on earth sustainable but represents a radical change to the dominant paradigm, in which wellbeing is coupled with consumption. We draw on the idea that imagined futures perform the present, meaning that ecologically sustainable futures may be generated if marketers envision and “sell” them as desirable.

There is currently intensive research ongoing with the aim to utilize various lignin-derived molecules to produce aromatic monomers and polymers. In the present work, homovanillic acid (HVA), derived from lignin, was used to prepare sustainable polyesters for the first time. An AB-type monomer with an alcohol group and a carboxylate ester group was conveniently synthesized by using HVA and et