... org/10.1134/S0013873821090037Loke Schmalensee, Katrín Hulda Gunnarsdóttir, Joacim Näslund, Karl Gotthard, Philipp Lehmann, Cameron Ghalambor Thermal performance under constant temperatures can accurately predict insect development times across naturally variable ...
Tópico(s): Physiological and biochemical adaptations
1933 - University of Chicago Press | Physiological Zoology
Joacim Näslund, Badreddine Bererhi, Jörgen I. Johnsson,
Abstract In this study, we investigate whether and how arena design of emergence tests (a commonly used boldness assay where the latency to emerge from a start box is measured) can affect the behaviour of the subject animals. We used two populations of wild brown trout fry, captured on their hatching grounds, and measured emergence latency in arenas with two different sizes of start‐box gates and two different environments into which the fish emerges from the start box (barren and complex), in a factorial ...
Tópico(s): Physiological and biochemical adaptations
2015 - Wiley | Ethology
Loke von Schmalensee, Katrín Hulda Gunnarsdóttir, Joacim Näslund, Karl Gotthard, Philipp Lehmann,
Abstract External conditions can drive biological rates in ectotherms by directly influencing body temperatures. While estimating the temperature dependence of performance traits such as growth and development rate is feasible under controlled laboratory settings, predictions in nature are difficult. One major challenge lies in translating performance under constant conditions to fluctuating environments. Using the butterfly Pieris napi as model system, we show that development rate, an important ...
Tópico(s): Insect and Arachnid Ecology and Behavior
2021 - Wiley | Ecology Letters
Gunhild A. Stordalen, Joacim Rocklöv, Maria Nilsson, Peter Byass,
Despite considerable global attention to the issues of climate change, relatively little priority has been given to the likely effects on human health of current and future changes in the global climate. We identify three major societal determinants that influence the impact of climate change on human health, namely the application of scholarship and knowledge; economic and commercial considerations; and actions of governments and global agencies.The three major areas are each discussed in terms ...
Tópico(s): Health disparities and outcomes
2013 - Taylor & Francis | Global Health Action
Henrik Sjödin, Annelies Wilder‐Smith, Sarah Osman, Zia Farooq, Joacim Rocklöv,
Several Italian towns are under lockdown to contain the COVID-19 outbreak. The level of transmission reduction required for physical distancing interventions to mitigate the epidemic is a crucial question. We show that very high adherence to community quarantine (total stay-home policy) and a small household size is necessary for curbing the outbreak in a locked-down town. The larger the household size and amount of time in the public, the longer the lockdown period needed.
Tópico(s): COVID-19 and Mental Health
2020 - European Centre for Disease Prevention and Control | Eurosurveillance
... is appropriate and technical analysis quite elegant,” says Joacim Rocklöv, an associate professor of epidemiology at Umeå University in Sweden, who was not involved with the study. “However, the aim of the study is temperature and not climatic extreme heat waves, which can be harder to study in shorter time periods ...
Tópico(s): Thermoregulation and physiological responses
2015 - National Institute of Environmental Health Sciences | Environmental Health Perspectives
Libor Závorka, Jeroen Brijs, Niklas Wengström, Magnus Lovén Wallerius, Joacim Näslund, Barbara Koeck, David Aldvén, Rémy Lassus, Johan Höjesjö, Jörgen I. Johnsson, Julien Cucherousset,
Abstract Phenotypic scoring of wild animals under standardized laboratory conditions is important as it allows field ecologists and evolutionary biologists to understand the development and maintenance of interindividual differences in plastic traits (e.g. behaviour and physiology). However, captivity is associated with a shift from a natural familiar environment to an unfamiliar and artificial environment, which may affect estimates of plastic phenotypic traits. In this study, we tested how previous ...
Tópico(s): Physiological and biochemical adaptations
2018 - Wiley | Journal of Zoology
Objectives The WHO states that nosocomial infections occur in 9% of all patients and this mean figure has been confirmed at our hospital. As a result, a project was started, designed to reduce the number of patients with healthcare‐associated infections by means of improved compliance with hygiene guidelines (working clothes and hand hygiene). This prospective study assessed the frequency of healthcare‐associated infections and compliance with hygiene guidelines at an regional ENT ward. At intervention, ...
2008 - Wiley | Otolaryngology
... the following articles citing this article:Haoyu Guo, Joacim Näslund, Søren T. Thomassen, Martin H. Larsen Social ... Surface Modification of Magnetic Nanoparticles by Carbon-Coating Can Increase Its Biosafety: Evidences from Biochemical and Neurobehavioral ...
Tópico(s): Fish Ecology and Management Studies
1960 - University of Chicago Press | Physiological Zoology
Ian Cornelius, Joacim Hansson, Birger Hjørland, Olof Sundin,
... background conditions but always limited by them. We can construct what the background conditions might be by constructive interpretation. Joacim Hansson Hermeneutics has become increasingly used as an ...
Tópico(s): Information Retrieval and Search Behavior
2005 - Wiley | Proceedings of the American Society for Information Science and Technology
Jan C. Semenza, Joaquín Triñanes, Wolfgang Lohr, Bertrand Súdre, Margareta Löfdahl, Jaime Martínez-Urtaza, Gordon Nichols, Joacim Rocklöv,
... Löfdahl, Jaime Martinez-Urtaza, Gordon L. Nichols, and Joacim Rocklöv Jan C. Semenza Address correspondence to J. ... UK University of East Anglia, Norwich, UK , and Joacim Rocklöv Umeå Centre for Global Health Research, Umeå ...
Tópico(s): Yersinia bacterium, plague, ectoparasites research
2017 - National Institute of Environmental Health Sciences | Environmental Health Perspectives
Pehr‐Johan Norbäck, Lars Persson, Joacim Tå̊g,
... Economics (IFN); Centre for Economic Policy Research (CEPR)Joacim TågResearch Institute of Industrial Economics (IFN) There are ... Norback, Pehr-Johan and Persson, Lars and Tåg, Joacim, Buying to Sell: Private Equity Buyouts and Industrial ... Centre for Economic Policy Research (CEPR) LondonUnited Kingdom Joacim Tåg Research Institute of Industrial Economics (IFN) ( email ) ...
Tópico(s): State Capitalism and Financial Governance
2013 - RELX Group (Netherlands) | SSRN Electronic Journal
... and the relationship between documents and context in Joacim Hansson's exploration of classification schemes as documents that contextualize.The other, addressed by Julian Warner, is the fundamental distinction between semantic labor (subjective judgments) and syntactic labor (routinized procedures) and how, when and with what consequences the latter can be a suitable substitute for the former.There ...
2024 - Emerald Publishing Limited | Journal of Documentation
Joacim Rocklöv, Bertil Forsberg,
Background: Health effects induced by climate, weather and climatic change may act directly or indirectly on human physiology. The future total burden of global warming is uncertain, but in some areas and for specific outcomes, mortality and morbidity are likely to increase. One likely effect of global warming is an increasing number of extreme weather events, such as floods, storms and heat waves. The excess numbers of specific health outcomes attributable to climate-induced events can be estimated. ...
Tópico(s): Air Quality and Health Impacts
2009 - Taylor & Francis | Global Health Action
Yunhe Xu, Hongyan Zhang, Dorit Thormeyer, Ola Larsson, Quan Du, Joacim Elmén, Claes Wahlestedt, Zicai Liang,
Antisense DNA target sites can be selected by the accessibility of the mRNA target. It remains unknown whether a mRNA site that is accessible to an antisense DNA is also a good candidate target site for a siRNA. Here, we reported a parallel analysis of 12 pairs of antisense DNAs and siRNA duplexes for their potency to inhibit reporter luciferase activity in mammalian cells, both of the antisense DNA and siRNA agents in a pair being directed to same site in the mRNA. Five siRNAs and two antisense ...
Tópico(s): DNA and Nucleic Acid Chemistry
2003 - Elsevier BV | Biochemical and Biophysical Research Communications
Thomas Westin, Joacim Stalfors,
Purpose of review This article reviews the literature on the management of head and neck cancer using multidisciplinary team meetings as well as addressing the question of whether or not this organization is of benefit to the patients and treating staff and if it is cost efficient. Recent findings The multidisciplinary team has developed because of the complexity of clinical workup and treatment of head and neck cancer for which no single physician can claim to master all the training and skills ...
Tópico(s): Colorectal and Anal Carcinomas
2008 - Lippincott Williams & Wilkins | Current Opinion in Otolaryngology & Head & Neck Surgery
Joacim Rocklöv, Kristie L. Ebi, Bertil Forsberg,
High and low ambient temperatures are associated with large numbers of deaths annually. Many studies show higher mortalities during heatwaves. However, such effects are rarely explicitly incorporated in models of temperature and mortality, although dehydration followed by cardiovascular stress is more likely to occur. The authors aim to establish time-series models in which the effects of persistent extreme temperature and temperature in general can be disentangled.The authors established time-series ...
Tópico(s): Air Quality and Health Impacts
2010 - BMJ | Occupational and Environmental Medicine
Nicholas Economides, Joacim Tå̊g,
We discuss network neutrality regulation of the Internet in the context of a two-sided market model. Platforms sell broadband Internet access services to residential consumers and may set fees to content and application providers on the Internet. When access is monopolized, cross-group externalities (network effects) can give a rationale for network neutrality regulation (requiring zero fees to content providers): there exist parameter ranges for which network neutrality regulation increases the total ...
Tópico(s): Media Influence and Politics
2011 - RELX Group (Netherlands) | SSRN Electronic Journal
Andreas Béguin, Simon Hales, Joacim Rocklöv, Christofer Åström, Valérie R. Louis, Rainer Sauerborn,
The current global geographic distribution of malaria results from a complex interaction between climatic and non-climatic factors. Over the past century, socio-economic development and public health measures have contributed to a marked contraction in the distribution of malaria. Previous assessments of the potential impact of global changes on malaria have not quantified the effects of non-climate factors. In this paper, we describe an empirical model of the past, present and future-potential ...
Tópico(s): Parasite Biology and Host Interactions
2011 - Elsevier BV | Global Environmental Change
Joacim Stalfors, Christer Lundberg, Thomas Westin,
Head and neck oncology MDT meetings are held in our region to establish a correct diagnosis and an appropriate treatment plan for each reviewed patient.The quality of these MDT meetings was assessed based on the following factors: How often can a diagnosis, a TNM-classification and a treatment plan be successfully established from the workup presented at the patient's first MDT meeting? And what are the reasons for failure? Further, how often are the TNM-classification altered at treatment start? ...
Tópico(s): Global Cancer Incidence and Screening
2006 - Taylor & Francis | Acta Oto-Laryngologica
Joacim Näslund, Kim Aarestrup, Søren T. Thomassen, Jörgen I. Johnsson,
In hatcheries, fish are normally reared in barren environments, which have been reported to affect their phenotypic development compared with wild conspecifics. In this study, Atlantic salmon ( Salmo salar ) alevins were reared in conventional barren hatchery trays or in either of two types of structurally enriched trays. We show that increased structural complexity during early rearing increased brain size in all investigated brain substructures. However, these effects disappeared over time after transfer ...
Tópico(s): Marine and fisheries research
2012 - Canadian Science Publishing | Canadian Journal of Fisheries and Aquatic Sciences
Joacim Rocklöv, Adrian Barnett, Alistair Woodward,
We examine the effect of heat waves on mortality, over and above what would be predicted on the basis of temperature alone. Present modeling approaches may not fully capture extra effects relating to heat wave duration, possibly because the mechanisms of action and the population at risk are different under more extreme conditions. Modeling such extra effects can be achieved using the commonly left-out effect-modification between the lags of temperature in distributed lag models. Using data from ...
Tópico(s): Air Quality and Health Impacts
2012 - BioMed Central | Environmental Health
Nicholas Economides, Joacim Tå̊g,
We discuss network neutrality regulation of the Internet in the context of a two-sided market model. Platforms sell broadband Internet access services to residential consumers and may set fees to content and application providers on the Internet. When access is monopolized, cross-group externalities (network effects) can give a rationale for network neutrality regulation (requiring zero fees to content providers): there exist parameter ranges for which network neutrality regulation increases the total ...
Tópico(s): Merger and Competition Analysis
2012 - Elsevier BV | Information Economics and Policy
Joacim Elmén, Håkan Thonberg, Karl Ljungberg, Miriam Frieden, Majken Westergaard, Yunhe Xu, Britta Wahrén, Zicai Liang, Henrik Ørum, Troels Koch, Claes Wahlestedt,
Therapeutic application of the recently discovered small interfering RNA (siRNA) gene silencing phenomenon will be dependent on improvements in molecule bio-stability, specificity and delivery. To address these issues, we have systematically modified siRNA with the synthetic RNA-like high affinity nucleotide analogue, Locked Nucleic Acid (LNA). Here, we show that incorporation of LNA substantially enhances serum half-life of siRNA's, which is a key requirement for therapeutic use. Moreover, we provide ...
Tópico(s): MicroRNA in disease regulation
2005 - Oxford University Press | Nucleic Acids Research
W. B. Hutchinson, J. B. Oliver, Margareta Nylén, Joacim Hagström,
Conditions favouring spontaneous growth of whiskers from tin coatings are discussed. Observations are reported concerning orientations and geometry of whiskers. The driving force for growth arises from elastic stress in the coating and can be expressed as a Gibbs free energy in terms of the decrease in pressure. An analysis of diffusion-controlled growth based on grain boundary diffusion seems to be capable of accounting for the fast growth kinetics that are observed in practice at room temperature.
Tópico(s): Adhesion, Friction, and Surface Interactions
2004 - Trans Tech Publications | Materials science forum
Joacim Meneses‐León, Edgar Denova‐Gutiérrez, Susana Castañón-Robles, Víctor Granados-García, Juan O. Talavera, Berenice Rivera‐Paredez, Gerardo Huitrón-Bravo, Margarita Cervantes‐Rodríguez, Manuel Quiterio-Trenado, Samantha E Rudolph, Jorge Salmerón,
The prevalence of hyperuricemia has doubled worldwide during the last few decades. The substantial increase in sweetened beverage (SB) consumption has also coincided with the secular trend of hyperuricemia. Recent studies do show that the consumption of SB can induce hyperuricemia. However, the association between SB and hyperuricemia remains unclear. The aim of this study was to evaluate the association between SB consumption and levels of uric acid in Mexican adults. We performed a cross-sectional ...
Tópico(s): Diet, Metabolism, and Disease
2014 - BioMed Central | BMC Public Health
Jörgen I. Johnsson, Sofia Brockmark, Joacim Näslund,
Why do captive-reared fishes generally have lower fitness in natural environments than wild conspecifics, even when the hatchery fishes are derived from wild parents from the local population? A thorough understanding of this question is the key to design artificial rearing environments that optimize post-release performance, as well as to recognize the limitations of what can be achieved by modifying hatchery rearing methods. Fishes are generally very plastic in their development and through gene- ...
Tópico(s): Aquaculture disease management and microbiota
2014 - Wiley | Journal of Fish Biology
Magnus Zingmark, Anne G. Fisher, Joacim Rocklöv, Ingeborg Nilsson,
Objective: The aim of this exploratory randomised controlled trial (RCT) was to evaluate three different occupation-focused interventions for well older people by estimating effect sizes for leisure engagement and ability in activities of daily living (ADL) and thereby identifying the most effective interventions. Methods: One hundred and seventy seven persons, 77–82 years old, living alone and without home help, were randomized to a control group (CG), an individual intervention (IG), an activity group ( ...
Tópico(s): Cerebral Palsy and Movement Disorders
2014 - Informa | Scandinavian Journal of Occupational Therapy
Annelies Wilder‐Smith, Mikkel Quam, October M. Sessions, Joacim Rocklöv, Jing Liu-Helmersson, Leticia Franco, Kamran Khan,
In 2012, Madeira reported its first major outbreak of dengue. To identify the origin of the imported dengue virus, we investigated the interconnectivity via air travel between dengue-endemic countries and Madeira, and compared available sequences against GenBank. There were 22,948 air travellers to Madeira in 2012, originating from twenty-nine dengue-endemic countries; 89.6% of these international travellers originated from Venezuela and Brazil. We developed an importation index that takes into ...
Tópico(s): Viral Infections and Vectors
2014 - European Centre for Disease Prevention and Control | Eurosurveillance
Joacim Rocklöv, Bertil Forsberg, Kristie L. Ebi, Tom Bellander,
BackgroundAmbient temperatures can cause an increase in mortality. A better understanding is needed of how health status and other factors modify the risk associated with high and low temperatures, to improve the basis of preventive measures. Differences in susceptibility to temperature and to heat and cold wave duration are relatively unexplored.ObjectivesWe studied the associations between mortality and temperature and heat and cold wave duration, stratified by age and individual and medical factors. ...
Tópico(s): Air Quality and Health Impacts
2014 - Taylor & Francis | Global Health Action