bluuebunny/crossref_metadata_2025_split huggingface dataset:
Complex and nonlinear climate‐driven changes in freshwater insect communities over 42 years
Authors: Baranov Viktor , Jourdan Jonas , Pilotto Francesca , Wagner Rüdiger , Haase Peter 
Published: February 2020

AbstractThe ongoing biodiversity crisis becomes evident in the widely observed decline in abundance and diversity of species, profound changes in community structure, and shifts in species’ phenology. Insects are among the most affected groups, with documented decreases in abundance up to 76% in the last 25–30 years in some terrestrial ecosystems. Identifying the underlying drivers is a major obstacle as most ecosystems are affected by multiple stressors simultaneously and in situ measurements of environmental variables are often missing. In our study, we investigated a headwater stream belonging to the most common stream type in Germany located in a nature reserve with no major anthropogenic impacts except climate change. We used the most comprehensive quantitative long‐term data set on aquatic insects available, which includes weekly measurements of species‐level insect abundance, daily water temperature and stream discharge as well as measurements of additional physicochemical variables for a 42‐year period (1969–2010). Overall, water temperature increased by 1.88 °C and discharge patterns changed significantly. These changes were accompanied by an 81.6% decline in insect abundance, but an increase in richness (+8.5%), Shannon diversity (+22.7%), evenness (+22.4%), and interannual turnover (+34%). Moreover, the community's trophic structure and phenology changed: the duration of emergence increased by 15.2 days, whereas the peak of emergence moved 13.4 days earlier. Additionally, we observed short‐term fluctuations (<5 years) in almost all metrics as well as complex and nonlinear responses of the community toward climate change that would have been missed by simply using snapshot data or shorter time series. Our results indicate that climate change has already altered biotic communities severely even in protected areas, where no other interacting stressors (pollution, habitat fragmentation, etc.) are present. This is a striking example of the scientific value of comprehensive long‐term data in capturing the complex responses of communities toward climate change.
Evaluating and expanding the European Union's protected‐area network toward potential post‐2020 coverage targets
Authors: Müller Anke , Schneider Uwe A. , Jantke Kerstin 
Published: February 2020

AbstractThe Convention on Biological Diversity's (CBD) strategic plan will expire in 2020, but biodiversity loss is ongoing. Scientists call for more ambitious targets in the next agreement. The nature‐needs‐half movement, for example, has advocated conserving half of Earth to solve the biodiversity crisis, which has been translated to protecting 50% of each ecoregion. We evaluated current protection levels of ecoregions in the territory of one of the CBD's signatories, the European Union (EU). We also explored the possible enlargement of the Natura 2000 network to implement 30% or 50% ecoregion coverage in the EU member states’ protected area (PA) network. Based on the most recent land‐use data, we examined whether ecoregions have enough natural area left to reach such high coverage targets. We used a spatially explicit mixed integer programing model to estimate the least‐cost expansion of the PA network based on 3 scenarios that put different emphasis on total conservation cost, ecological representation of ecosystems, or emphasize an equal share of the burden among member states. To realize 30% and 50% ecoregion coverage, the EU would need to add 6.6% and 24.2%, respectively, of its terrestrial area to its PA network. For all 3 scenarios, the EU would need to designate most recommended new PAs in seminatural forests and other semi‐ or natural ecosystems. Because 15 ecoregions did not have enough natural area left to implement the ecoregion‐coverage targets, some member states would also need to establish new PAs on productive land, allocating the largest share to arable land. Thirty percent ecoregion coverage was met by protecting remaining natural areas in all ecoregions except 3, where productive land would also need to be included. Our results support discussions of higher ecoregions protection targets for post‐2020 biodiversity frameworks.
A computational algorithm based on biogeography‐based optimization method for computing power system security constrains with multi FACTS devices
Authors: Kumar M. Manoj , Alli Rani A. , Sundaravazhuthi V. 
Published: February 2020

AbstractA major role is played by the analysis of power system security in heightening system security and in system collapse condition avoidance. This article presents a cutting edge mechanism which is devised applying transmission line loadings as well as variance in bus voltage magnitude. The use of flexible alternating current transmission systems devices improves the objectives of generation fuel charges in addition to the severity index proposed which were investigated considering the contingency circumstances of generator(s) or/and transmission channel(s). To boost system security in spite of contingency circumstances in the existence of unified power flow controller or UPFC, it would be most appropriate to pinpoint a most advantageous position to install aforementioned device. We propose a model of UPFC where power insertion is done by using voltage source. Also a procedure to incorporate the same and a strategy to find optimum position has been proposed which uses line overload sensitivity indices. This work mainly focused on establishment of available transfer capability on the heavily congested line. The proposed congestion management scheme alleviates the heavy stress in transmission line and provides an ample corridor for the power to flow. Biogeography‐based optimization or BBO in short, is a technique which is a growing recognized optimization method which has been lucratively engaged in solving intricate optimization problem in dissimilar fields. The BBO provides better results than the metaheuristic counter parts such as Genetic Algorithm and Particle Swarm Optimization. The effectiveness of proposed BBO has been tested on standard IEEE 30 bus system and the results are compared with classic methods and other metaheuristic methods. This is established through the MATLAB package. Improved bus voltage profile was also attained and it can be inferred from the outcome that the prospective approach can drastically enhance security of power system when comparing with other optimization methods.
Current state of whole slide imaging use in cytopathology: Pros and pitfalls
Authors: Eccher Albino , Girolami Ilaria 
Published: February 2020

AbstractWhole slide imaging (WSI) allows generation of large whole slide images and their navigation with zoom in and out like a true virtual microscope. It has become widely used in surgical pathology for many purposes, such as education and training, research activity, teleconsultation, and primary diagnosis. However, in cytopathology, the use of WSI has been lagging behind histology, mainly due to the cytological specimen's characteristics, as groups of cells of different thickness are distributed throughout the slide. To allow the same focusing capability of light microscope, slides have to be scanned at multiple focal planes, at the cost of longer scan times and larger file size. These are the main technical pitfalls of WSI for cytopathology, partly overcome by solutions like liquid‐based preparations. Validation studies for the use in primary diagnosis are less numerous and more heterogeneous than in surgical pathology. WSI has been proved effective for training students and successfully used in proficiency testing, allowing the creation of digital cytology atlases. Longer scan times are also a barrier for use in rapid on‐site evaluation, but WSI retains its advantages of easy sharing of images for consultation, multiple simultaneous viewing in different locations, the possibility of unlimited annotations and easy integration with medical records. Moreover, digital slides set the laboratory free from reliance on a physical glass slide, with no more concern of fading of stain or slide breakage. Costs are still a problem for small institutions, but WSI can also represent the beginning of a more efficient way of working.
Global changes threaten functional and taxonomic diversity of insular species worldwide
Authors: Leclerc Camille , Villéger Sébastien , Marino Clara , Bellard Céline 
Published: February 2020

AbstractAimThe assessment of biodiversity patterns under global changes is currently biased towards taxonomic diversity, thus overlooking the ecological and functional aspects of species. Here, we characterized both taxonomic and functional diversity of insular biodiversity threatened by multiple threats.LocationWorldwide islands (n = 4,348).MethodsWe analysed the relative importance of eleven major threats, including biological invasions or climate change, on 2,756 insular endemic mammals and birds. Species were functionally described using five ecological traits related to diet, habitat and body mass. We computed complementary taxonomic and functional diversity indices (richness, specialization, originality and vulnerability) of species pools affected by each threatening process to investigate relationships between diversity dimensions and threats. We also determined whether species‐specific traits are associated with specific threats.ResultsOn average, 8% of insular endemic species at risk of extinction are impacted by threats, while 20% of their functional richness is affected. However, a marked disparity in functional richness values associated with each threat can be highlighted. In particular, cultivation and wildlife exploitation are the greatest threats to insular endemic species. Moreover, each threat may contribute to the loss of at least 10% of functional diversity, because it affects threatened species that support unique and extreme functions. Finally, we found complex patterns of species‐specific traits associated with particular threats that is not explain by the threatening processes (directly affecting survival or modifying habitat). For instance, cultivation threatens very large mammals, while urbanization threatens very small mammals.Main conclusionsThese findings reinforce the importance of exploring the vulnerability of biodiversity facets in the face of multiple threats. Anthropogenic pressures may result in a loss of unique functions within insular ecosystems, which provides important insights into the understanding of threatening processes at a global scale.
Systematic review and meta‐analysis of randomized controlled trials of psychological interventions to improve glycaemic control in children and adults with type 1 diabetes
Authors: Winkley K. , Upsher R. , Stahl D. , Pollard D. , Brennan A. , Heller S. , Ismail K. 
Published: February 2020

AbstractAimWe conducted a systematic review aggregate and network meta‐analysis of psychological interventions for people with type 1 diabetes to assess their effectiveness in improving glycaemic levels.MethodsWe searched the following databases from 1 January 2003 to 1 July 2018: MEDLINE, CINAHL, PsycINFO, Embase, Cochrane Controlled Trials, Web of Science, clinicaltrials.gov, Dissertation Abstract International. We included randomized controlled trials (RCT) of psychological interventions for children and adults with type 1 diabetes reported in any language. We extracted data on publications, participant characteristics at baseline, intervention and control group, and data for the primary outcome, change in glycaemic control [HbA1c (mmol/mol/%)]. Study authors were contacted for missing data. The review was registered with international prospective register of systematic reviews registration (PROSPERO) CRD42016033619.ResultsTwenty‐four adult RCTs and 23 of children with type 1 diabetes were included in the systematic review. In aggregate meta‐analysis there was no overall effect of psychological intervention compared with control on HbA1c [adults, nine RCTs, n = 1102, pooled mean difference −0.12, 95% confidence intervals (CI) −0.27 to 0.03, I2 = 29.0%, P = 0.19; children, 20 RCTs, n = 2567, −0.09, 95% CI −0.22 to 0.04, I2=54.0% P=0.002]. Network meta‐analysis suggested that probability and rank‐ordering of effectiveness is highest for attention control groups (b = −0.47, 95% CI −0.80 to −0.12) followed by cognitive behavioural therapy (CBT) (−0.26, 95% CI −0.45 to −0.06) compared with usual care for adults.ConclusionsOverall psychological interventions for children and adults with type 1 diabetes do not improve glycaemic control. For adults, CBT‐based interventions have the potential to be effective.
Adverse drug reactions of statins in children and adolescents: a descriptive analysis from VigiBase, the WHO global database of individual case safety reports
Authors: Conte Cécile , Rousseau Vanessa , Vert Charlotte , Montastruc François , Montastruc Jean‐Louis , Durrieu Geneviève , Olivier Pascale 
Published: February 2020

AbstractIn adults, statins safety profile is well known. However, literature data on their adverse drug reactions (ADRs) remain scarce in children in real‐life setting. In order to better characterize ADRs related to ‘real‐life’ use of statins in children, we reviewed statin‐related ADRs recorded in the World Health Organization (WHO) global database of individual case safety reports (ICSRs), VigiBase. Methods. Individual case safety reports (ICSRs) in children (2–11 years) and adolescents (12–17 years) associated with statins from January 1, 1987, to July 18, 2017, were extracted from VigiBase. Characteristics of ICSRs, type of ADRs according to MedDRA classification (SOC and PT), and ICSR seriousness were described using SAS 9.4. A total of 311 ICSRs were identified for 8 statins with 712 ADRs. Musculoskeletal disorders (n = 85, 27.3%) were the first registered ADRs followed by general disorders (n = 67, 21.5%; mainly asthenia and pain). More than 1 out of 5 ADRs were ‘injury, poisoning and procedural complications’ (n = 67), mainly accidental or intentional exposures (n = 44, 14.1%), overdoses (n = 14, 4.5%), or off‐label use (n = 11, 3.5%). Overall, 133 (42.8%) reports were ‘serious’, including 11 deaths. Deaths mainly involved adolescents with intentional overdose and completed suicide with other associated drugs in 75% of reports. Our study identified rare but serious safety issues (rhabdomyolysis, myalgia, and hepatocellular injury). These ADRs can impact quality of life or lead to life‐threatening complications in children. Our results should be supplemented with other data sources. Spontaneous statin ADR reports in children to pharmacovigilance networks must be promoted.
Cumulative fatigue damage of stress below the fatigue limit in weldment steel under block loading
Authors: He Lei , Akebono Hiroyuki , Sugeta Atsushi , Hayashi Yoshiichirou 
Published: February 2020

AbstractTo investigate the cumulative fatigue damage below the fatigue limit of multipass weldment martensitic stainless steel, and to clarify the effect of cycle ratios and high‐stress level in the statement, fatigue tests were conducted under constant and combined high‐ and low‐stress amplitude relative to stress above and below the fatigue limit. The outcomes indicate that neither modified Miner's nor Haibach's approach provided accurate evaluation under repeated two‐step amplitude loading. Moreover, effect of cycle ratios has been determined. Additionally, the cumulative fatigue damage saturated model is established and validated. Cumulative fatigue damage contributed by low‐stress below the fatigue limit in high stress of 700 MPa is higher than that with 650 MPa at identical conditions (fatigue limit 575 MPa). Thus, high stress affects fatigue damage behaviour below the fatigue limit. A new predicted approach has been proposed based on Corten‐Dolan law, whose accuracy and applicability have been proven.
Intra‐annual variation of phytoplankton community responses to factorial N, P, and CO2 enrichment in a temperate mesotrophic lake
Authors: Katkov Egor , Low‐Décarie Étienne , Fussmann Gregor F. 
Published: February 2020

Abstract

Across primary producer communities in different lakes, nitrogen (N) and phosphorus (P) can exhibit many different patterns of limitation. Here, we look at the intra‐annual variability of these patterns in a single lake. Furthermore, we investigate whether a third resource, carbon dioxide (CO2) can have significant effects on phytoplankton biomass and community composition.

We performed five in situ lacustrine mesocosm experiments at different times of the year. In each experiment, we had a factorial design with two levels of N, P and CO2 enrichment (no enrichment or double lake concentrations for N and P and atmospheric (400 ppm) and c. 1,000 ppm for CO2) resulting in a total of eight treatments. Mesocosms of c. 1,600 L were suspended in a temperate, mesotrophic lake (Lac Hertel, Canada). Each experiment lasted 2 weeks and chlorophyll a biomass, coarse chemotaxonomic community composition (measured using fluorometry), and several environmental variables were recorded at a minimum of four time points.

We found that the limiting, synergistic, and community composition effects of N and P varied between experiments. TN:TP ratios explained, in part, some of this variability, along with insolation and water temperature.

Despite relatively high levels of CO2 in the control mesocosms, we found a constant synergistic effect of CO2 with N. In combination with the synergistic effect of P with N found in some experiments, this provides support for CO2 as one of the multiple limiting resources in nutrient‐enriched systems. This finding could have implications for eutrophic lakes exposed to increasing concentrations of CO2.

We also found that the effects of CO2 on community composition varied intra‐annually. Thus, we conclude that generalised predictions about the effect of CO2 on community composition at a coarse chemotaxonomic scale are unlikely to hold, but predictions specific to season and system are likely to be reliable.
Mapping tree species vulnerability to multiple threats as a guide to restoration and conservation of tropical dry forests
Authors: Fremout Tobias , Thomas Evert , Gaisberger Hannes , Van Meerbeek Koenraad , Muenchow Jannes , Briers Siebe , Gutierrez‐Miranda Claudia E. , Marcelo‐Peña José L. , Kindt Roeland , Atkinson Rachel , Cabrera Omar , Espinosa Carlos I. , Aguirre‐Mendoza Zhofre , Muys Bart 
Published: February 2020

AbstractUnderstanding the vulnerability of tree species to anthropogenic threats is important for the efficient planning of restoration and conservation efforts. We quantified and compared the effects of future climate change and four current threats (fire, habitat conversion, overgrazing and overexploitation) on the 50 most common tree species of the tropical dry forests of northwestern Peru and southern Ecuador. We used an ensemble modelling approach to predict species distribution ranges, employed freely accessible spatial datasets to map threat exposures, and developed a trait‐based scoring approach to estimate species‐specific sensitivities, using differentiated trait weights in accordance with their expected importance in determining species sensitivities to specific threats. Species‐specific vulnerability maps were constructed from the product of the exposure maps and the sensitivity estimates. We found that all 50 species face considerable threats, with an average of 46% of species’ distribution ranges displaying high or very high vulnerability to at least one of the five threats. Our results suggest that current levels of habitat conversion, overexploitation and overgrazing pose larger threats to most of the studied species than climate change. We present a spatially explicit planning strategy for species‐specific restoration and conservation actions, proposing management interventions to focus on (a) in situ conservation of tree populations and seed collection for tree planting activities in areas with low vulnerability to climate change and current threats; (b) ex situ conservation or translocation of populations in areas with high climate change vulnerability; and (c) active planting or assisted regeneration in areas under high current threat vulnerability but low climate change vulnerability, provided that interventions are in place to lower threat pressure. We provide an online, user‐friendly tool to visualize both the vulnerability maps and the maps indicating priority restoration and conservation actions.
Satellite‐based estimates reveal widespread forest degradation in the Amazon
Authors: Bullock Eric L. , Woodcock Curtis E. , Souza Carlos , Olofsson Pontus 
Published: February 2020

AbstractAnthropogenic and natural forest disturbance cause ecological damage and carbon emissions. Forest disturbance in the Amazon occurs in the form of deforestation (conversion of forest to non‐forest land covers), degradation from the extraction of forest resources, and destruction from natural events. The crucial role of the Amazon rainforest in the hydrologic cycle has even led to the speculation of a disturbance “tipping point” leading to a collapse of the tropical ecosystem. Here we use time series analysis of Landsat data to map deforestation, degradation, and natural disturbance in the Amazon Ecoregion from 1995 to 2017. The map was used to stratify the study area for selection of sample units that were assigned reference labels based on their land cover and disturbance history. An unbiased statistical estimator was applied to the sample of reference observations to obtain estimates of area and uncertainty at biennial time intervals. We show that degradation and natural disturbance, largely during periods of severe drought, have affected as much of the forest area in the Amazon Ecoregion as deforestation from 1995 to 2017. Consequently, an estimated 17% (1,036,800 ± 24,800 km2, 95% confidence interval) of the original forest area has been disturbed as of 2017. Our results suggest that the area of disturbed forest in the Amazon is 44%–60% more than previously realized, indicating an unaccounted for source of carbon emissions and pervasive damage to forest ecosystems.
Art, climate change and (other) eco materials: rethinking the cosmopolitanization of aesthetics and the aesthetics of cosmopolitanization with Ulrich Beck
Authors: THORSEN LINE MARIE 
Published: February 2020

AbstractBased on fieldwork in Japan and Hong Kong, I ask how methodological cosmopolitanism, as formulated by Ulrich Beck, may afford new and highly needed modes for grappling with climatically concerned art and aesthetic practices across geographical regions. I will argue that methodological cosmopolitanism serves as an important framework for approaching such art practices, and suggest that two overall intertwined strands concerning aesthetic practices engaged in global issues of climate change, emerge from this – the cosmopolitanization of aesthetics and, reversely, the aesthetics of cosmopolitanization. Departing from my fieldwork among farming artists in the Hong Kong countryside and in the Japanese satoyama – rural mountain – areas, I will, on the one hand, argue that art practices are ‘cosmopolitanized’ by the awareness of global risks, manifested in anticipation of the comprehensive climatic changes (in)discriminately affecting across nations and regions. At the same time, and importantly, art practices are actively attending to this ‘risky’ cosmopolitanization, giving aesthetic voice, form and ‘visuality’ to unfolding climatic issues and concerns and hereby practising what I will call an ‘aesthetics of cosmopolitanization’.