bluuebunny/crossref_metadata_2025 huggingface dataset:
Bewegungszeit, Belastungsintensität und Bewegungsumfang im Sportunterricht
Authors: Breithecker Jennifer , Jaitner David , Lohmann Julia , Linke Daniel , Siegle Malte , Lames Martin , Brandl-Bredenbeck Hans Peter
Published: July 2021

Untersuchungen zu Bewegungsanteilen im Sportunterricht unter Verwendung objektiver Verfahren sind in Deutschland selten. Sie sind jedoch sowohl aus gesundheits- und trainingswissenschaftlicher als auch aus sportpädagogischer Perspektive von Interesse, um Schulsportwirklichkeit systematisch analysieren zu können. Der vorliegende Beitrag untersucht Bewegungszeit (Minuten), Belastungsintensität (Herzschläge pro Minute) und Bewegungsumfang (Meter pro Minute) im Sportunterricht am Beispiel des Unterrichtsinhalts Fußball. Im Zentrum steht die Frage, ob sich Unterschiede für die Unterrichtsdauer (Einzelstunde/Doppelstunde), das Setting (indoor/outdoor) und das Geschlecht zeigen. Insgesamt nahmen 356 Schüler*innen (247 männlich, 109 weiblich) von der fünften bis zur zehnten Jahrgangsstufe (MAlter = 12,4 Jahre) eines Gymnasiums in Bayern an der Untersuchung teil. Zum Einsatz kamen standardisierte Beobachtungsprotokolle, Herzfrequenzmesser und ein Trackingsystem (Local Position Measurement System [LPM-System]). Die Ergebnisse zeigten, dass die relative Bewegungszeit, die Belastungsintensität und der Bewegungsumfang in Einzelstunden am höchsten waren. Die relative Bewegungszeit war outdoor etwas höher als indoor. Die durchschnittliche Herzfrequenz unterschied sich nicht nach Setting und Geschlecht. Jungen erzielten einen höheren durchschnittlichen Bewegungsumfang im Vergleich zu Mädchen. Insgesamt deuten die Ergebnisse darauf hin, dass der Sportunterricht mit dem Inhalt Fußball einen substanziellen Beitrag zum täglichen Gesundheits- und Bewegungsverhalten leisten kann.
Investigations into the opening of fractures during hydraulic testing using a hybrid-dimensional flow formulation
Authors: Schmidt Patrick , Steeb Holger , Renner Jörg
Published: July 2021

We applied a hybrid-dimensional flow model to pressure transients recorded during pumping experiments conducted at the Reiche Zeche underground research laboratory to study the opening behavior of fractures due to fluid injection. Two distinct types of pressure responses to flow-rate steps were identified that represent radial-symmetric and plane-axisymmetric flow regimes from a conventional pressure-diffusion perspective. We numerically modeled both using a radial-symmetric flow formulation for a fracture that comprises a non-linear constitutive relation for the contact mechanics governing reversible fracture surface interaction. The two types of pressure response can be modeled equally well. A sensitivity study revealed a positive correlation between fracture length and normal fracture stiffness that yield a match between field observations and numerical results. Decomposition of the acting normal stresses into stresses associated with the deformation state of the global fracture geometry and with the local contacts indicates that geometrically induced stresses contribute the more the lower the total effective normal stress and the shorter the fracture. Separating the contributions of the local contact mechanics and the overall fracture geometry to fracture normal stiffness indicates that the geometrical stiffness constitutes a lower bound for total stiffness; its relevance increases with decreasing fracture length. Our study demonstrates that non-linear hydro-mechanical coupling can lead to vastly different hydraulic responses and thus provides an alternative to conventional pressure-diffusion analysis that requires changes in flow regime to cover the full range of observations.
Caregiver Satisfaction and Perceptions of Trauma-Focused Cognitive Behavioral Therapy
Authors: Brumley Lauren D. , Pollio Elisabeth , Cooper Beth , Steer Robert A. , Deblinger Esther
Published: July 2021

Although caregivers have been found to be critical to children’s healing, little has been documented about caregivers’ experiences in Trauma-Focused Cognitive Behavioral Therapy (TF-CBT). The current study describes caregivers’ satisfaction with and perceptions of TF-CBT. Caregivers (n = 431) of children/adolescents (n = 496) who completed TF-CBT filled out pre-treatment questionnaires on demographics and perceived aloneness in facing their child’s trauma, and posttreatment questionnaires on treatment satisfaction and perceptions of TF-CBT. Caregivers rated treatment satisfaction an average of 30.59 (SD = 3.15) out of a maximum score of 32 on the Client Satisfaction Questionnaire-8. The majority of caregivers endorsed that talking about their child’s trauma was more helpful than discussing other current problems, they spoke frequently with their child’s therapist about their child’s trauma, they reported information/skill building in therapy were more helpful than support received, they felt understood by their therapist, treatment helped them more effectively parent, and treatment helped improve their relationship with their child. Perceptions were associated with overall treatment satisfaction. There was a significant reduction in caregivers’ feelings of aloneness in facing their child’s trauma from pre- to posttreatment, which was also related to overall treatment satisfaction. Caregivers reported high satisfaction with TF-CBT, and identified talking about their child’s trauma as more helpful than talking about problems not related to the trauma. Caregivers endorsed benefits of participating in TF-CBT, including feeling less alone in facing their child’s trauma, improved relationship with their child, and more effective parenting skills. These results have important treatment implications.
Uncertainty Evaluation of Object Detection Algorithms for Autonomous Vehicles
Authors: Peng Liang , Wang Hong , Li Jun
Published: July 2021

The safety of the intended functionality (SOTIF) has become one of the hottest topics in the field of autonomous driving. However, no testing and evaluating system for SOTIF performance has been proposed yet. Therefore, this paper proposes a framework based on the advanced You Only Look Once (YOLO) algorithm and the mean Average Precision (mAP) method to evaluate the object detection performance of the camera under SOTIF-related scenarios. First, a dataset is established, which contains road images with extreme weather and adverse lighting conditions. Second, the Monte Carlo dropout (MCD) method is used to analyze the uncertainty of the algorithm and draw the uncertainty region of the predicted bounding box. Then, the confidence of the algorithm is calibrated based on uncertainty results so that the average confidence after calibration can better reflect the real accuracy. The uncertainty results and the calibrated confidence are proposed to be used for online risk identification. Finally, the confusion matrix is extended according to the several possible mistakes that the object detection algorithm may make, and then the mAP is calculated as an index for offline evaluation and comparison. This paper offers suggestions to apply the MCD method to complex object detection algorithms and to find the relationship between the uncertainty and the confidence of the algorithm. The experimental results verified by specific SOTIF scenarios proof the feasibility and effectiveness of the proposed uncertainty acquisition approach for object detection algorithm, which provides potential practical implementation chance to address perceptual related SOTIF risk for autonomous vehicles.
Enhancement of combustion characteristics of VCR diesel engine by optimizing engine parameters
Authors: Ganji Prabhakara Rao , Vysyaraju Rajesh Khana Raju , Surapaneni Srinivasa Rao , Kumar B. Karuna
Published: July 2021

In recent years, engine emissions have been one of the important problems which are of great concern. Hence, there is a growing need to develop engines with reduced emission. In the present study, Variable Compression Ratio diesel engine model has been validated by comparing the simulation results with the experimental. The study is aimed at analyzing the effect of compression ratio, exhaust gas recirculation, fuel injection pressure and start of injection on engine performance and emission characteristics. Using composite desirability technique, the engine parameters have been optimized to achieve lower NOx, soot and ISFC. The optimum combination has been observed at Compression ratio 17.52, Start of injection −30.1 °aTDC, Fuel injection pressure 736.06 bar and Exhaust gas recirculation 28.29%. ISFC, NOx and soot are reduced by 2.37%, 29.11% and 83.81% respectively. Higher Target Fuel Distribution Index indicates the improved mixture homogeneity for the optimized parameters.
Piezoelectric relaxation of two-dimentional electron gas in InGaN/GaN heterostructures with quantum wells
Authors: Burmistrov Evgeny R. , Avakyants Lev P. , Afanasova Marina M.
Published: July 2021

The article is devoted to the study of the mechanism of piezoelectric scattering of charge carriers in an InGaN/AlGaN/ GaN heterostructures with one filled quantum-confinement subband. The aim of the article is to create a mathematical model that can be used to estimate the kinetic parameters of a two-dimensional electron gas (2DEG) in the structure under study. The results of the calculation of the matrix scattering potentials demonstrated the reliability and consistency on the used model of industrial LED heterostructures with InGaN/GaN quantum wells. It is shown that mechanical stresses in the InGaN/GaN layers lead to an uneven distribution of the total electric field along the active layer. It has been established that the lifetime limiting the mobility of a two-dimensional electron gas in piezoelectric scattering is of the order of 10–9 s.
AHWR-Net: offline handwritten amharic word recognition using convolutional recurrent neural network
Authors: Abdurahman Fetulhak , Sisay Eyob , Fante Kinde Anlay
Published: July 2021

Amharic ("Image missing") is the official language of the Federal Government of Ethiopia, with more than 27 million speakers. It uses an Ethiopic script, which has 238 core and 27 labialized characters. It is a low-resourced language, and a few attempts have been made so far for its handwritten text recognition. However, Amharic handwritten text recognition is challenging due to the very high similarity between characters. This paper presents a convolutional recurrent neural networks based offline handwritten Amharic word recognition system. The proposed framework comprises convolutional neural networks (CNNs) for feature extraction from input word images, recurrent neural network (RNNs) for sequence encoding, and connectionist temporal classification as a loss function. We designed a custom CNN model and compared its performance with three different state-of-the-art CNN models, including DenseNet-121, ResNet-50 and VGG-19 after modifying their architectures to fit our problem domain, for robust feature extraction from handwritten Amharic word images. We have conducted detailed experiments with different CNN and RNN architectures, input word image sizes, and applied data augmentation techniques to enhance performance of the proposed models. We have prepared a handwritten Amharic word dataset, HARD-I, which is available publicly for researchers. From the experiments on various recognition models using our dataset, a WER of 5.24 % and CER of 1.15 % were achieved using our best-performing recognition model. The proposed models achieve a competitive performance compared to existing models for offline handwritten Amharic word recognition.
Amorpha-4,11-diene synthase: a key enzyme in artemisinin biosynthesis and engineering
Authors: Huang Jin Quan , Fang Xin
Published: July 2021

Amorpha-4,11-diene synthase (ADS) catalyzes the first committed step in the artemisinin biosynthetic pathway, which is the first catalytic reaction enzymatically and genetically characterized in artemisinin biosynthesis. The advent of ADS in Artemisia annua is considered crucial for the emergence of the specialized artemisinin biosynthetic pathway in the species. Microbial production of amorpha-4,11-diene is a breakthrough in metabolic engineering and synthetic biology. Recently, numerous new techniques have been used in ADS engineering; for example, assessing the substrate promiscuity of ADS to chemoenzymatically produce artemisinin. In this review, we discuss the discovery and catalytic mechanism of ADS, its application in metabolic engineering and synthetic biology, as well as the role of sesquiterpene synthases in the evolutionary origin of artemisinin.
The Evolution of Social Behaviour
Authors: Taborsky Michael , Cant Michael A. , Komdeur Jan
Published: July 2021

How can the stunning diversity of social systems and behaviours seen in nature be explained? Drawing on social evolution theory, experimental evidence and studies conducted in the field, this book outlines the fundamental principles of social evolution underlying this phenomenal richness.To succeed in the competition for resources, organisms may either 'race' to be quicker than others, 'fight' for privileged access, or 'share' their efforts and gains. The authors show how the ecology and intrinsic attributes of organisms select for each of these strategies, and how a handful of straightforward concepts explain the evolution of successful decision rules in behavioural interactions, whether among members of the same or different species. With a broad focus ranging from microorganisms to humans, this is the first book to provide students and researchers with a comprehensive account of the evolution of sociality by natural selection.
A Single-Session Combined Cognitive Bias Modification Training Targeting Attention and Interpretation Biases in Aggression
Authors: AlMoghrabi Nouran , Franken Ingmar H.A. , Mayer Birgit , Huijding Jorg
Published: July 2021

Experimental studies applying cognitive bias modification of attention (CBM-A) and interpretation (CBM-I) to reduce aggression have examined the effect of modifying each cognitive bias in isolation. In order to maximise the potential impact on both biases and symptom reduction, we examined whether a combined bias training procedure targeting both attention and interpretation biases (CBM-AI) in combination would be more effective than targeting interpretation bias (CBM-I) alone. University students (17–35 years) were randomly assigned to either a single session of CBM-AI training (n = 40), CBM-I training (n = 40), or a control condition (n = 40). Contrary to our expectations, participants showed an increase in adaptive attention and pro-social interpretation bias in all training conditions. Additionally, in none of the conditions, we found a significant change on self-reported or behavioural aggression. These findings suggest: (1) that the combined training did not have added effect over single interpretation bias training, (2) that training interpretation bias may lead to changes in attention bias, (3) that elements of the control condition unexpectedly, but interestingly, also affected attention and interpretation biases, and (4) single-session CBM procedures do not produce robust effects on self-report or behavioural measures of aggression in unselected samples.
Assessing the risk of plant species invasion under different climate change scenarios in California
Authors: Renteria Jorge L. , Darin Gina M. Skurka , Grosholz Edwin D.
Published: July 2021

Using species distribution models (SDMs), we predicted the distribution of 170 plant species under different climatic scenarios (current and future climatic conditions) and used this information to create invasion risk maps to identify potential invasion hot spots in California. The risk of invasion by individual species was also assessed using species’ predicted area in combination with some biological traits associated with invasiveness (growth form, reproduction mechanisms, and age of maturity). A higher number of species would find suitable climatic conditions along the coast; the Central Western (CW) and South Western (SW) were ecoregions where a higher number of species were predicted. Overall, hot spots of species distribution were similar under current and future climatic conditions; however, individual species’ predicted area (increase or decrease) was variable depending on the climate change scenario and the greenhouse gas emission. Out of the 170 species assessed, 22% ranked as high-risk species, with herbs, grasses, and vines accounting for 78% within this risk class, and a high proportion (67%) of Asteraceae species ranked as high risk. This study suggests that current climatic conditions of the central and south coastal regions of California would be considered as hot spots of new invasions, and for some species this risk might increase with hotter and drier future climatic conditions.
Spectral properties of a beam equation with eigenvalue parameter occurring linearly in the boundary conditions
Authors: Aliyev Ziyatkhan S. , Mamedova Gunay T.
Published: July 2021

In this paper, we consider an eigenvalue problem for ordinary differential equations of fourth order with a spectral parameter in the boundary conditions. The location of eigenvalues on real axis, the structure of root subspaces and the oscillation properties of eigenfunctions of this problem are investigated, and asymptotic formulas for the eigenvalues and eigenfunctions are found. Next, by the use of these properties, we establish sufficient conditions for subsystems of root functions of the considered problem to form a basis in the space $L_p,1 < p < \infty$.
Detecting true relationships in time series data with different orders of integration
Authors: Enns Peter K. , Moehlecke Carolina , Wlezien Christopher
Published: July 2021

It is fairly well-known that proper time series analysis requires that estimated equations be balanced. Numerous scholars mistake this to mean that one cannot mix orders of integration. Previous studies have clarified the distinction between equation balance and having different orders of integration, and shown that mixing orders of integration does not increase the risk of type I error when using the general error correction/autoregressive distributed lag (GECM/ADL) models, that is, so long as equations are balanced (and other modeling assumptions are met). This paper builds on that research to assess the consequences for type II error when employing those models. Specifically, we consider cases where a true relationship exists, the left- and right-hand sides of the equation mix orders of integration, and the equation still is balanced. Using the asymptotic case, we find that the different orders of integration do not preclude identification of the true relationship using the GECM/ADL. We then highlight that estimation is trickier in practice, over finite time, as data sometimes do not reveal the underlying process. But, simulations show that even in these cases, researchers will typically draw accurate inferences as long as they select their models based on the observed characteristics of the data and test to be sure that standard model assumptions are met. We conclude by considering the implications for researchers analyzing or conducting simulations with time series data.
From Retrenchment to Selective Social Policy Expansion: The Politics of Federal Cash Benefits in Canada
Authors: Béland Daniel , Prince Michael J. , Weaver R. Kent
Published: July 2021

While much has been written about the politics of retrenchment, in a number of advanced industrial societies social policy expansion does occur today, which raises issues about how to study it in a post-retrenchment era. The present article explores the new politics of social policy expansion in Canada. Drawing on the work of Paul Pierson, we use an integrated framework that highlights the interaction of five factors: the availability of fiscal resources; the emergence of new social risks; the intensity and nature of partisan competition; the policy preferences of the main political parties; and the role of political institutions, especially federalism. Empirically, the article studies the politics of federal social policy expansion during the Harper (2006–2015) and Justin Trudeau (2015–) years, with a focus on three policy areas: child benefits (Universal Child Care Benefit and Canada Child Benefit), pensions (Old Age Security and Canada/Quebec Pension Plan) and Employment Insurance.
A preliminary study ofBadimiaVězda (Ramalinaceae) in East Asia
Authors: Wang Wei-Cheng , Sangvichien Ek , Buaruang Kawinat , Jiang Shu-Hua , Wei Tie-Zheng , Wei Jiang-Chun
Published: July 2021

The tropical areas of eastern Asia contain a high diversity of foliicolous lichens, including various species of the genusBadimia.Badimia xanthocampylidiaW. C. Wang & J. C. Wei is described from tropical rainforests in southern China and Thailand based on morphology, chemistry, and combined mtSSU, ITS and nrLSU sequences. It is characterized by a pale green thallus with yellow verrucae and bright yellow campylidia and the presence of isousnic acid. Three other species,B. multiseptataPapong & Lücking,B. pallidula(Kremp.) Vězda andB. polillensis(Vain.) Vězda, are discussed and the genusBadimiais newly reported from China. A worldwide key to currently known species in the genus is presented.
Mary, did you consent?
Authors: Hereth Blake
Published: July 2021

The Christian and Islamic doctrine of thevirgin birthclaim God asexually impregnated the Virgin Mary with Jesus, Mary's impregnation was fully consensual (virgin consent), and God never acts immorally (divine goodness). First, I show that God's actions and Mary's background beliefs undermine her consent by virtue of coercive incentives, Mary's comparative powerlessness, and the generation of moral conflicts. Second, I show that God's non-disclosure of certain reasonably relevant facts undermines Mary's informed consent. Third, I show that a recent attempt by Jack Mulder to rescuevirgin consentfails. Asdivine goodnessandvirgin consentare more central to orthodoxy, Christians and Muslims have powerful reason to rejectvirgin birth.
Social participation and life satisfaction among older adults: diversity of practices and social inequality in Switzerland
Authors: Baeriswyl Marie , Oris Michel
Published: July 2021

This paper examines the associations between social participation and individual life satisfaction among older adults. It specifically considers the diversity of the practices and social inequalities among this population. For analyses, we used a large survey of individuals of 65 years and older conducted in 2011 in Switzerland (N = 2,727). The first set of linear regression analyses examines Diener's Satisfaction with Life Scale and its association with various indicators of social participation. While the second set of logistic regression addresses the issue of social inequalities by evaluating the impacts of gender, age group, region and education on social participation indicators that are significantly associated with the satisfaction with life score. Our results stressed the importance of combining multiple forms of participation for life satisfaction and shows that some forms are particularly meaningful: in particular, the involvement in associations, visitation of family or visitation of friends/acquaintances and church attendance. When inequalities among older adults are considered, having rich and varied social participation, being involved in associations and maintaining private sociability with non-kin appear more elitist. While institutionalised and/or private sociability types of participation appear particularly significant for older adults’ life satisfaction, the most traditional integration forms –i.e.family and religions – are crucial for the more vulnerable. Implications for active ageing was equally discussed as well.
Pathogen spectrum changes of respiratory tract infections in children in Chaoshan area under the influence of COVID-19
Authors: Lin Chuang-Xing , Lian Hao-bin , Lin Guang-Yu , Zhang Dan-gui , Cai Xiao-Ying , Cai Zhi-Wei , Wen Fei-qiu
Published: July 2021

From 24 January 2020 to 18 May 2020, Chaoshan took measures to limit the spread of coronavirus disease 2019 (COVID-19), such as restricting public gatherings, wearing masks and suspending classes. We explored the effects of these measures on the pathogen spectrum of paediatric respiratory tract infections in Chaoshan. Pharyngeal swab samples were collected from 4075 children hospitalised for respiratory tract infection before (May–December 2019) and after (January–August 2020) the COVID-19 outbreak. We used liquid chip technology to analyse 14 respiratory pathogens. The data were used to explore between-group differences, age-related differences and seasonal variations in respiratory pathogens. The number of cases in the outbreak group (1222) was 42.8% of that in the pre-outbreak group (2853). Virus-detection rates were similar in the outbreak (48.3%, 590/1222) and pre-outbreak groups (51.5%, 1468/2853; χ2 = 3.446, P = 0.065), while the bacteria-detection rate was significantly lower in the outbreak group (26.2%, 320/1222) than in the pre-outbreak group (44.1%, 1258/2853; χ2 = 115.621, P < 0.05). With increasing age, the proportions of respiratory syncytial virus (RSV) and cytomegalovirus (CMV) infections decreased, while those of Mycoplasma pneumoniae and adenovirus infections increased. Streptococcus pneumoniae, CMV and rhinovirus infections peaked in autumn and winter, while RSV infections peaked in summer and winter. We found that the proportion of virus-only detection decreased with age, while the proportion of bacteria-only detection increased with age (Table 2). Anti-COVID-19 measures significantly reduced the number of paediatric hospitalisations for respiratory tract infections, significantly altered the pathogen spectrum of such infections and decreased the overall detection rates of 14 common respiratory pathogens. The proportion of bacterial, but not viral, infections decreased.
COMBINATION OF SIGNS IN THE CODICES OF CENTRAL MEXICO: EXAMPLES FROM SACRIFICE AND DISMEMBERMENT REPRESENTATIONS
Authors: Dehouve Danièle
Published: July 2021

The system of communication in use in central Mexico at the time of the Spanish Conquest was made up of signs composed largely of pictorial elements, including glyphs (signs in a script) and graphic representations of the ornaments of the deities. It had a generative character that was expressed mainly in the fact that it combined basic signs to create new meanings. This article deals with the combinations between the following signs: the smoking mirror, the flint, the down ball and the skull, all belonging to the field of sacrifice and dismemberment of the human body. They were associated with each other and created the following codified and conventional combinations: mirror-flint, mirror-down, flint-skull, flint-obsidian, skull-down, and a composite pectoral called anahuatl. This article proposes a typology of these combinations, and sheds light on their meanings and the processes of their construction.
Application of the WeChat platform in midterm follow-up after surgical repair of ventricular septal defects in infants
Authors: Xie Wen-Peng , Liu Jian-Feng , Lei Yu-Qing , Cao Hua , Chen Qiang
Published: July 2021

Background:

To explore the feasibility and superiority of applying the WeChat platform in a midterm follow-up of surgical repair for ventricular septal defects in infants.

Methods:

Eighty-six infants with VSD who underwent surgical repair were divided into an outpatient follow-up group and a WeChat follow-up group. The clinical data, including complications, economic cost, time spent, loss to follow-up rate, and parents’ satisfaction at the 3-month and 1-year follow-ups, were recorded and analysed.

Results:

There was no significant difference in the incidence of post-operative complications between the two groups. Although the loss to follow-up rate in the WFU group was lower than that of the OFU group, the difference was not statistically significant. The economic cost and time spent in the 3 months and 1 year after discharge in the WFU group were significantly lower than those in the OFU group. One year after discharge, the PSQ-18 score of the WFU group was significantly higher than that of the OFU group.

Conclusion:

Compared with outpatient follow-up, the WeChat platform at the midterm follow-up after surgical repair of VSDs in infants has the advantages of saving time and economic costs and improves parents’ satisfaction.
CLSM and TIRF images from lignocellulosic materials: garlic skin and agave fibers study
Authors: Hernández-Varela Josué , Chanona-Pérez José , Benavides Héctor Calderón , Cerda Susana Gallegos , Victoriano Lizbeth Gonzalez , Perea Flores María de Jesús , López Maximiliano Campos , Rojas Candelas Liliana Edith , Tamayo Benjamín Arredondo
Published: July 2021

Fluorescence techniques have been widely used by scientists to reveal valuable information from biological samples, but in food science, small progress is known due to the complexity of the samples. In this study, two different biological samples, garlic skin (GS) and agave fibers (AF), were used to evaluate the techniques of confocal laser scanning microscopy (CLSM) and total internal reflection fluorescence (TIRF) microscopy, to obtain valuable information on the fiber size of the samples. A compositional characterization with calcofluor white in CLSM was achieved, but a superficial characterization of the samples with TIRF was made, evidencing fiber sizes of 398.67 ± 48.47 nm and 677.38 ± 76.88 nm for GS and AF, respectively. This work reveals that only an untreated sample can be used with the two techniques in the same microscope. In addition, it is possible to characterize the sample only using a spatial field of research and which valuable information about the structure of the material is found. This work provides the opportunity to use advanced fluorescence techniques for elucidation of structures shortly before studied with these techniques.
Unfolding the case of returnees: How the European Union and its member States are addressing the return of foreign fighters and their families
Authors: Rigotti Carlota , Barboza Júlia Zomignani
Published: July 2021

The return of foreign fighters and their families to the European Union has mostly been considered a security threat by member States, which consequently adopt repressive measures aimed at providing an immediate, short-term response to this perceived threat. In addition to this strong-arm approach, reintegration strategies have also been used to prevent returnees from falling back into terrorism and to break down barriers of hostility between citizens in the long term. Amidst these different strategies, this paper seeks to identify which methods are most desirable for handling returnees.
Influence of recovery treatments on dicamba-injured soybean
Authors: Dintelmann Brian R. , Farrell Shea T. , Bradley Kevin W.
Published: July 2021

Non-dicamba-resistant soybean yield loss resulting from dicamba off-target injury has become an increasing concern for soybean growers in recent years. After off-target dicamba movement occurs onto sensitive soybean, little information is available on tactics that could be used to mitigate the cosmetic or yield losses that may occur. Therefore, a field experiment was conducted in 2017, 2018, and 2019 to determine whether certain recovery treatments of fungicide, plant growth hormone, macro- and micronutrient fertilizer combinations, or weekly irrigation could reduce dicamba injury and/or result in similar yield to soybean that was not injured with dicamba. Simulated drift events of dicamba (5.6 g ae ha−1) were applied to non-dicamba-resistant soybean once they reached the V3 or R2 stages of growth. Recovery treatments were applied approximately 14 d after the simulated drift event. Weekly irrigation was the only recovery treatment that provided appreciable levels of injury reduction or increases in soybean height or yield compared to the dicamba-injured plants. Weekly irrigation following the R2 dicamba injury event resulted in an 1% to 14% increase in soybean yield compared with the dicamba-injured control. All other recovery treatments resulted in soybean yields that were similar to the dicamba-injured control, and similar to or lower than the nontreated control. Results from this study indicate that if soybean have become injured with dicamba, weekly irrigation will help soybean recover some of the yield loss and reduce injury symptoms that resulted from off-target dicamba movement, especially in a year with below average precipitation. However, yield loss will likely not be restored to that of noninjured soybean.
Middle‐Low Latitude Neutral Composition and Temperature Responses to the 20 and 21 November 2003 Superstorm From GUVI Dayside Limb Measurements
Authors: Yu Tingting , Wang Wenbin , Ren Zhipeng , Yue Jia , Yue Xinan , He Maosheng
Published: July 2021

TIMED/Global Ultraviolet Imager (GUVI) limb measurements of far‐ultraviolet airglow emission have been used to investigate middle‐low latitude thermospheric composition and neutral temperature responses to the 20 and 21 November 2003 (day of year [DOY] 324 and 325) superstorm. Altitude profiles of O, N2 number densities and temperature, as well as O/N2 column density ratio (∑O/N2), on the storm days along the GUVI limb tracks are compared with those on DOY 323 (quiet time). The storm‐time composition and temperature responses were global and evolved continuously as the storm progressed. Specially, N2 and temperature increased almost globally at all altitudes during the storm and their perturbation structures were similar. The magnitudes of their enhancements both increased with altitude and latitude. The storm‐induced O perturbations decreased in the lower thermosphere but increased in the upper thermosphere. Transition heights of O perturbations from decrease to increase changed with latitude and time. During the storm main and recovery phases, the storm‐induced ∑O/N2 decreases were mostly related to the O depletion in the low‐middle thermosphere, whereas ∑O/N2 increases during the storm were primarily caused by N2 depletion. There was a remarkable hemispheric asymmetry in composition responses as they have different morphologies and lifetime, especially during the storm recovery phase.
Evaluating Auroral Forecasts Against Satellite Observations
Authors: Mooney M. K. , Marsh M. S. , Forsyth C. , Sharpe M. , Hughes T. , Bingham S. , Jackson D. R. , Rae I. J. , Chisham G.
Published: July 2021

The aurora is a readily visible phenomenon of interest to many members of the public. However, the aurora and associated phenomena can also significantly impact communications, ground‐based infrastructure, and high‐altitude radiation exposure. Forecasting the location of the auroral oval is therefore a key component of space weather forecast operations. A version of the OVATION‐Prime 2013 auroral precipitation model (Newell et al., 2014, https://doi.org/10.1002/2014sw001056) was used by the UK Met Office Space Weather Operations Centre (MOSWOC). The operational implementation of the OVATION‐Prime 2013 model at the UK Met Office delivered a 30‐min forecast of the location of the auroral oval and the probability of observing the aurora. Using weather forecast evaluation techniques, we evaluate the ability of the OVATION‐Prime 2013 model forecasts to predict the location and probability of the aurora occurring by comparing the forecasts with auroral boundaries determined from data from the IMAGE satellite between 2000 and 2002. Our analysis shows that the operational model performs well at predicting the location of the auroral oval, with a relative operating characteristic (ROC) score of 0.82. The model performance is reduced in the dayside local time sectors (ROC score = 0.59) and during periods of higher geomagnetic activity (ROC score of 0.55 for Kp = 8). As a probabilistic forecast, OVATION‐Prime 2013 tends to underpredict the occurrence of aurora by a factor of 1.1–6, while probabilities of over 90% are overpredicted.
Patterns and Distributions of Urban Expansion in Global Watersheds
Authors: Huang Qingxu , Zhang Han , van Vliet Jasper , Ren Qiang , Wang Raymond Yu , Du Shiqiang , Liu Zhifeng , He Chunyang
Published: July 2021

Understanding urban expansion at the watershed scale is important because watersheds are important carriers of ecological and environmental impacts. However, current analyses are mainly restricted to administrative units only. Here, we used a long‐term multitemporal data set of urban land to quantify the spatiotemporal trends in the extent and form of urban expansion from 1992 to 2016 in endorheic and exoreic watersheds, globally. Overall, urban expansion in 70% of watersheds (154/220) showed a decelerating trend. The average urban expansion speed of these watersheds in the last 6 years was approximately half of that in the last 24 years. Urban expansion speed in endorheic watersheds lagged behind the counterparts in exoreic watersheds, with the former approximately 1/4 of the latter. More importantly, the pattern of urban expansion in endorheic watersheds was following the low‐density and sprawling trend in exoreic watersheds, which could exert far‐reaching impacts on the sustainability of endorheic watersheds located in arid lands. These findings suggest the need to look beyond administrative city boundaries for land use planning and policies in the context of watershed management.
Air Pollution From Forest and Vegetation Fires in Southeast Asia Disproportionately Impacts the Poor
Authors: Reddington Carly L. , Conibear Luke , Robinson Suzanne , Knote Christoph , Arnold Stephen R. , Spracklen Dominick V.
Published: July 2021

Forest and vegetation fires, used as tools for agriculture and deforestation, are a major source of air pollutants and can cause serious air quality issues in many parts of Asia. Actions to reduce fire may offer considerable, yet largely unrecognized, options for rapid improvements in air quality. In this study, we used a combination of regional and global air quality models and observations to examine the impact of forest and vegetation fires on air quality degradation and public health in Southeast Asia (including Mainland Southeast Asia and south‐eastern China). We found that eliminating fire could substantially improve regional air quality across Southeast Asia by reducing the population exposure to fine particulate matter (PM2.5) concentrations by 7% and surface ozone concentrations by 5%. These reductions in PM2.5 exposures would yield a considerable public health benefit across the region; averting 59,000 (95% uncertainty interval (95UI): 55,200–62,900) premature deaths annually. Analysis of subnational infant mortality rate data and PM2.5 exposure suggested that PM2.5 from fires disproportionately impacts poorer populations across Southeast Asia. We identified two key regions in northern Laos and western Myanmar where particularly high levels of poverty coincide with exposure to relatively high levels of PM2.5 from fires. Our results show that reducing forest and vegetation fires should be a public health priority for the Southeast Asia region.
Stable Atlantic Deep Water Mass Sourcing on Glacial‐Interglacial Timescales
Authors: Pöppelmeier Frerk , Gutjahr Marcus , Blaser Patrick , Schulz Hartmut , Süfke Finn , Lippold Jörg
Published: July 2021

Increased deep ocean carbon storage is often invoked as the major sink for lower atmospheric CO2 concentrations during past ice ages. In order to improve the understanding of the changes in ocean dynamics facilitating such increased oceanic carbon storage, we assess the variability of deep water provenance in the Atlantic by reconstructing authigenic Nd isotopes from North Atlantic site U1313 over the past ∼100 kyr. Under consideration of these new constraints for the northern Nd isotope end‐member, we find only limited long‐term variations in the meridional and intra‐basin water‐mass gradients suggesting a prevalence of northern‐sourced water (NSW) throughout the past 100 kyr. Tentative results suggest that during the glacial period of Marine Isotope Stage 4 NSW proportions even increased by additional ∼15% in the equatorial and Northeast Atlantic, calling into question the notion that cold climates promote the expansion of southern‐sourced water.
Upper‐Hybrid Waves Driven by Meandering Electrons Around Magnetic Reconnection X Line
Authors: Li W.‐Y. , Khotyaintsev Yu V. , Tang B.‐B. , Graham D. B. , Norgren C. , Vaivads A. , André M. , Le A. , Egedal J. , Dokgo K. , Fujimoto K. , He J.‐S. , Burch J. L. , Lindqvist P.‐A. , Ergun R. E. , Torbert R. B. , Le Contel O. , Gershman D. J. , Giles B. L. , Lavraud B. , Fuselier S. , Plaschke F. , Russell C. T. , Guo X.‐C. , Lu Q.‐M. , Wang C.
Published: July 2021

Magnetic reconnection is a fundamental process in collisionless space plasma environment, and plasma waves relevant to the kinetic interactions can have a significant impact on the multiscale behavior of reconnection. Here, we present Magnetospheric Multiscale (MMS) observations during an encounter of an X line of symmetric magnetic reconnection in the magnetotail. The X line is characterized by reversals of ion and electron jets and electromagnetic fields, agyrotropic electron velocity distribution functions (VDFs), and an electron‐scale current sheet. MMS observe large‐amplitude nonlinear upper‐hybrid (UH) waves on both sides of the neutral line, and the wave amplitudes have highly localized distribution along the normal direction. The inbound meandering electrons drive the UH waves, releasing the free energy stored from the reconnection electric field along the meandering trajectories. The interaction between the meandering electrons and the UH waves may modify the balance of the reconnection electric field around the X line.
Examining the Role of Cloud Radiative Interactions in Tropical Cyclone Development Using Satellite Measurements and WRF Simulations
Authors: Wu S.‐N. , Soden B. J. , Nolan D. S.
Published: July 2021

This study examines the role of cloud‐radiative interactions in the development of tropical cyclones using satellite measurements and model simulations. Previous modeling studies have found that the enhanced cloud radiative heating from longwave radiation in the convective region plays a key role in promoting the development of tropical convective systems. Here, we use satellite measurements and Weather Research and Forecasting Model (WRF) simulations to further investigate how critical cloud radiative interactions are to the development of tropical cyclones (TCs). Clouds and the Earth's Radiant Energy System measurements show that intensifying TCs have greater radiative heating from clouds within the TC area than weakening ones. Based on this result, idealized WRF simulations are performed to examine the importance of the enhanced radiative heating to TC intensification. Sensitivity experiments demonstrate that removing cloud‐radiative interactions often inhibits tropical cyclogenesis, suggesting that cloud‐radiative interactions play a critical role.
Enigmatic Mid‐Proterozoic Orogens: Hot, Thin, and Low
Authors: Spencer Christopher J. , Mitchell Ross N. , Brown Michael
Published: July 2021

Since the Archean, secular change in orogenic style is demonstrated through evolution of metamorphic conditions and geochemical proxies. Linked to orogenic style is the amount of crustal thickening and elevation, whereas orogenic vigor is related to the supercontinent cycle. An array of Proterozoic orogens spanned the assembly of supercontinents Columbia and Rodinia, but the vigor of orogenesis is debated, with proposals for both Mesoproterozoic quiescence and climax. We show mid‐Proterozoic orogenesis occurred globally and was broadly continuous; furthermore, orogens exhibit elevated metamorphic thermobaric ratios with large volumes of high‐temperature felsic magmatic rocks. These features reflect higher mantle heat flux leading to increased mid‐crustal flow and lower elevation. In this context, proposals that geochemical proxies for crustal thickness record orogenic quiescence are inconsistent with the geological record. Alternatively, secular change in crustal thickness is attributed to orogenic style, namely the prevalence of hot, thin, and low orogens in the mid‐Proterozoic.
Linear Response Function Reveals the Most Effective Remote Forcing in Causing September Arctic Sea Ice Melting in CESM
Authors: Wu Yutian , Lu Jian , Ding Qinghua , Liu Fukai
Published: July 2021

We apply the linear response function to investigate the most excitable mode of the September Arctic sea ice in the Community Earth System Model. We find that this sea ice mode preferentially takes place over the Pacific side of the Arctic and its remote forcing corresponds to a dipole pattern of precipitation anomaly in the tropics with an increase of precipitation over the western and central tropical Pacific ocean while a decrease over the Maritime Continent. The tropical precipitation anomaly likely drives a Rossby wave train propagating toward the higher latitudes and leads to a ridge anomaly over the Pacific side of the Arctic, resulting in poleward atmospheric heat transport, enhanced downward longwave radiation and thus melting of the sea ice. In addition, a good agreement is found with the leading tropical‐Arctic teleconnection mode in a pre‐industrial simulation, supporting the usefulness and robustness of the linear response function method.
The Footprint Characteristics of Cosmic Ray Thermal Neutrons
Authors: Jakobi J. , Huisman J. A. , Köhli M. , Rasche D. , Vereecken H. , Bogena H. R.
Published: July 2021

The advance of the cosmic ray neutron (CRN) sensing method for estimating field scale soil moisture relied largely on simulations of the footprint properties of epithermal neutrons (∼0.5 eV–100 keV). Commercially available CRN probes are usually additionally equipped with a thermal neutron (<0.5 eV) detector. The potential of these measurements is rarely explored because relevant features of thermal neutrons, such as the footprint and the sensitivity to soil moisture are unknown. Here, we used neutron transport modeling and a river crossing experiment to assess the thermal neutron footprint. We found that the horizontal thermal neutron footprint ranges between 43 and 48 m distance from the probe and that the vertical footprint extends to soil depths between 10 and 65 cm depending on soil moisture. Furthermore, we derived weighting functions that quantify the footprint characteristics of thermal neutrons. These results will enable new applications of thermal neutrons.
Shallowing Glacial Antarctic Intermediate Water by Changes in Sea Ice and Hydrological Cycle
Authors: Li Lingwei , Liu Zhengyu , Zhu Chenyu , He Chengfei , Otto‐Bliesner Bette
Published: July 2021

The Antarctic Intermediate Water (AAIW) is an essential global ocean water mass at intermediate depths. Coupled climate models in isotope‐enabled (δ18O, δD), fully coupled Community Earth System Model and Paleoclimate Model Intercomparison Project Phase 3 consistently show shallower AAIW depth at the Last Glacial Maximum (LGM) due to the northward shift of AAIW. More importantly, modeling results suggest that the northward shift of AAIW can be caused by sea ice expansion and the weakened hydrological cycle under the glacial climate. On the contrary, the AAIW under global warming tends to shift poleward compared to the pre‐industrial period driven by the retreating sea ice and strengthened hydrological cycle. However, the AAIW depth will shallow in response to the ongoing warming, likely due to the overwhelming effects of enhanced stratification and shallowing mixed layer.