bluuebunny/crossref_metadata_2025_split huggingface dataset:
Consequences of violating assumptions of integrated population models on parameter estimates
Authors: Plard Floriane , Turek Daniel , Schaub Michael 
Published: July 2021

AbstractWhile ecologists know that models require assumptions, the consequences of their violation become vague as model complexity increases. Integrated population models (IPMs) combine several datasets to inform a population model and to estimate survival and reproduction parameters jointly with higher precision than is possible using independent models. However, accuracy actually depends on an adequate fit of the model to datasets. We first investigated bias of parameters obtained from integrated population models when specific assumptions are violated. For instance, a model may assume that all females reproduce although there are non-breeding females in the population. Our second goal was to identify which diagnostic tests are sensitive to detect violations of the assumptions of IPMs. We simulated data mimicking a short- and a long-lived species under five scenarios in which a specific assumption is violated. For each simulated scenario, we fitted an IPM that violates the assumption (simple IPM) and an IPM that does not violate each specific assumption. We estimated bias and uncertainty of parameters and performed seven diagnostic tests to assess the fit of the models to the data. Our results show that the simple IPM was quite robust to violation of many assumptions and only resulted in small bias of the parameter estimates. Yet, the applied diagnostic tests were not sensitive to detect such small bias. The violation of some assumptions such as the absence of immigrants resulted in larger bias to which diagnostic tests were more sensitive. The parameters informed by the least amount of data were the most biased in all scenarios. We provide guidelines to identify misspecified models and to diagnose the assumption being violated. Simple models should often be sufficient to describe simple population dynamics, and when data are abundant, complex models accounting for specific processes will be able to shed light on specific biological questions.
Advanced mass balance characterization and fractionation of algal biomass composition
Authors: Van Wychen Stefanie , Rowland Steven M. , Lesco Kaitlin C. , Shanta Peter V. , Dong Tao , Laurens Lieve M. L. 
Published: July 2021

AbstractOpportunities associated with biomass production and bioproduct isolation from algae-derived feedstocks are plentiful and promising; however, there are challenges associated with realizing these applications. One of the most important, and often overlooked, challenges is the lack of availability of a strong foundation of compositional analysis methods validated on microalgal biomass. Currently, compositional analysis in algae is dominated by the use of interference-prone methods, a lack of full mass balance accounting, and the use of top-down approaches that bin all unaccounted-for mass into a single category, such as carbohydrates. We present here an approach based on a bottom-up algal biomass characterization aimed at moving towards, and highlighting the importance of, full and accurate mass closure to achieve the maximum economic potential from a sustainable and renewable feedstock. Algal biomass representing three genera, Nannochloropsis, Scenedesmus, and Monoraphidium, was subjected to a cell rupture and fractionation process, followed by detailed characterization of each fraction to determine the partitioning of measured and unknown components. The goal of this work is to identify where the missing components partition, and develop a strategy to close the mass balance or identify the unknowns, while utilizing a rigorous characterization approach for characterizing algal biomass. Although only 75–80% of the biomass was accounted for, the fractionation approach utilized here provides key insight into possible chemical components for future investigations.
Knowledge and Attitudes of two Latino Groups about Alzheimer Disease: a Qualitative Study
Authors: Cabrera Laura Y. , Kelly P. , Vega I. E. 
Published: July 2021

AbstractClustering Latinos under a single group in Alzheimer Disease (AD) research, neglects, among other things cultural and environmental differences. To address this, we examine knowledge and attitudes about AD among two Latino groups. We held 5 focus groups and 2 interviews all in Spanish with Mexicans and Puerto Ricans between 40 and 60 years old living in the Grand Rapids area in Michigan. Using content analysis of the discussions, we identified themes related to knowledge, attitudes and concerns about AD and caregiving. A total of 20 Mexicans and 9 Puerto Ricans participated. Improving knowledge and awareness, barriers and home-based family care were important themes in both Latino groups. Puerto Rican groups raised more concerns about the disease, whereas lack of knowledge was a key theme among Mexican participants. The exploratory study is a first step in promoting research that is attentive to the commonalities and differences of Latino groups and in continuing efforts to enhance health literacy among these groups.
Analysing Spatial Intrapersonal Variability of Road Users Using Point-to-Point Sensor Data
Authors: Crawford F. , Watling D. P. , Connors R. D. 
Published: July 2021

AbstractThe availability of newly emerging forms of data in recent years has provided new opportunities to study spatial intrapersonal variability, namely the variability in an individual’s destination and route choices from day to day. As well as providing insights into traveller needs, preferences and adaptive capacity, spatial intrapersonal variability can also inform the development of user classes for models of network disruption and for measuring behaviour change to evaluate the impact of network changes. This paper proposes a methodology for measuring spatial intrapersonal variability using point-to-point sensor data such as Bluetooth or number plate data. The method is innovative in accounting for sensor specific probabilities of detecting a passing device or vehicle and in providing a single measure for each traveller which considers destination and route choice variability and both the quantity of different trajectories utilised as well as the intensity with which they are used. A data science method is also presented for examining relationships between different trajectories observed in the network based on whether they are typically made by the same travellers. A case study using 12 months of real-world data is presented. The example provided demonstrates that a substantial amount of data processing is required, but the outputs of the methods are easily interpretable. Perhaps surprisingly, the analysis showed that the trips people made on weekdays were more evenly spread across a range of different trajectories than the trips they made during the weekend which were more concentrated into a few spatially similar clusters.
Marine storms in coastal tourist areas of the Canary Islands
Authors: Yanes Luque Amalia , Rodríguez-Báez José A. , Máyer Suárez Pablo , Dorta Antequera Pedro , López-Díez Abel , Díaz-Pacheco Jaime , Pérez-Chacón Emma 
Published: July 2021

AbstractThe small island areas oriented to coastal tourism are highly vulnerable to marine storms, given the fluctuation of this economic sector and the increase in its exposure due to the increasing anthropogenic presence on the coastline. In this context, the storms between 1958 and 2017 are studied here in the most important tourist enclaves of Tenerife and Gran Canaria, located in the municipalities of Arona and Adeje (SW of Tenerife) and in San Bartolomé de Tirajana and Mogán (S-SW of Gran Canaria). In order to perform the analysis, wave data from State Ports (Spain) (SIMAR-44 nodes, Ministry of Transport, Mobility and Urban Agenda of Spain) are used. A statistical study of the phenomena can help establish a threshold for the identification of a marine storm based on a significant wave height (Hs) of 2.7 m in Arona and Adeje and 1.7 m in San Bartolomé de Tirajana and Mogán. The application of this threshold identified 144 episodes in the SW of Tenerife and 154 in the S-SW of Gran Canaria. Their behavior is examined from, on the one hand, the duration, seasonality, type of waves and degree of severity that characterizes them; and, on the other, from the state of the atmosphere that concurs in its genesis by means of the Wetterzentrale synoptic maps. Finally, a first assessment of the effects of these stormy phenomena is made using local press reports on drowning, damage to urban furniture and port infrastructures and loss of sand on the beaches.
Potential of mosques to serve as evacuation shelters for foreign Muslims during disasters: a case study in Gunma, Japan
Authors: Kotani Hitomu , Tamura Mari , Li Jiayue , Yamaji Eiji 
Published: July 2021

AbstractForeigners tend to be vulnerable to disasters due to religious and cultural differences. In Japan, Muslim foreign residents, who are minorities, likely face difficulties in terms of food and religious practices in evacuation shelters. In this study, we propose the use of mosques as voluntary shelters for Muslim foreigners in Japan and evaluate their potential to function as shelters. Mosques are expected to have a large space, including a prayer space, and to store food familiar to daily users. We conducted field surveys targeting two mosques in Isesaki, Gunma, Japan, to investigate their equipment and building environment in relation to how they could function as shelters; the number of evacuees they could accommodate; the amount of food they could supply to evacuees; and the willingness of the administrators to use the mosques as shelters. Both mosques were found to be equipped with toilets and shower rooms and had enough space for approximately 60–80 evacuees. They also had sufficient kitchen space and tableware to prepare meals for about 100 people. Although they did not always stock a large amount of food, they could quickly receive food from nearby stores. Moreover, the administrators were willing to use the mosques as shelters. Therefore, it was suggested that the mosques could serve as shelters accommodating and feeding many evacuees. Finally, measures to improve the function of mosques as shelters are discussed. This study lays the groundwork for the future use of mosques as shelters.
Efficiency in university-industry collaboration: an analysis of UK higher education institutions
Authors: Bertoletti Alice , Johnes Geraint 
Published: July 2021

AbstractWe examine the determinants of university involvement in knowledge transfer activities, focusing on the value of external services provided by higher education institutions. Data come from 164 universities in the UK and are drawn from the HE Business and Community Interaction Survey (HE-BCI), with a variety of university- and region- specific explanatory variables grafted onto the data from other official sources. The production function for such external services is estimated using the appropriate stochastic frontier methods, and unobserved heterogeneity across institutions of higher education is accommodated by adopting a latent class framework for the modelling. We find strong effects of scale and of research orientation on the level of knowledge transfer. There are, however, two distinct latent classes of higher education institutions, and these differ especially in terms of how external service provision responds to subject specialization of universities and to economic conditions in the region. Research-intensive universities are concentrated in one of the latent classes and, in these institutions, the provision of external services appears to be highly efficient, while in the second latent class there is greater variation in the efficiency of universities.
Hard-material Adhesion: Which Scales of Roughness Matter?
Authors: Thimons L. A. , Gujrati A. , Sanner A. , Pastewka L. , Jacobs T. D. B. 
Published: July 2021

Abstract
Background
Surface topography strongly modifies adhesion of hard-material contacts, yet roughness of real surfaces typically exists over many length scales, and it is not clear which of these scales has the strongest effect. Objective: This investigation aims to determine which scales of topography have the strongest effect on macroscopic adhesion.

Methods
Adhesion measurements were performed on technology-relevant diamond coatings of varying roughness using spherical ruby probes that are large enough (0.5-mm-diameter) to sample all length scales of topography. For each material, more than 2000 measurements of pull-off force were performed in order to investigate the magnitude and statistical distribution of adhesion. Using sphere-contact models, the roughness-dependent effective values of work of adhesion were measured, ranging from 0.08 to 7.15 mJ/m2 across the four surfaces. The data was more accurately fit using numerical analysis, where an interaction potential was integrated over the AFM-measured topography of all contacting surfaces.

Results
These calculations revealed that consideration of nanometer-scale plasticity in the materials was crucial for a good quantitative fit of the measurements, and the presence of such plasticity was confirmed with AFM measurements of the probe after testing. This analysis enabled the extraction of geometry-independent material parameters; the intrinsic work of adhesion between ruby and diamond was determined to be 46.3 mJ/m2. The range of adhesion was 5.6 nm, which is longer than is typically assumed for atomic interactions, but is in agreement with other recent investigations. Finally, the numerical analysis was repeated for the same surfaces but this time with different length-scales of roughness included or filtered out.

Conclusions
The results demonstrate a critical band of length-scales—between 43 nm and 1.8 µm in lateral size—that has the strongest effect on the total adhesive force for these hard, rough contacts.
Facing neoliberalism through dialogic spaces as sites of hope in science education: experiences of two self-organised communities
Authors: Torres-Olave Betzabé , Bravo González Paulina 
Published: July 2021

AbstractIn this paper, we discuss the role of dialogue in two layers; first, in relation to two self-organised communities of science teachers in which we participated and, second, our process of coming together during our PhDs to analyse these communities, a dialogue about the dialogue. Regarding the first layer, there is much to learn from science teachers and science teacher educators when they are organised in sites of learning that can be spaces of hope, beginnings, and becoming, as is illustrated in the case of these two self-organised communities. Regarding the second layer, we discuss the value of dialogue and the possibilities it offers to develop ideas for science education in a way that might be democratising, emancipatory, and offering counter-narratives in a neoliberal Chile. By engaging in this dialogue revisiting the practices of our communities, we gained a sense of agency within the field of science education. However, we realised that we need to move towards a critical view within our communities, and more contextual and transformative science education by translating these sites of hope to our educational praxis today. For us, this relates both to developing a collective view of how to make science education provide pedagogical conditions and experiences for critical and engaged citizenship and thinking how we can act and engage with different settings in solidarity. One way of moving towards this is by developing a political knowledge of our disciplines through a collective scientific conscientisation. Our communities are the departure points to achieve this.
Searching novel complex solid solution electrocatalysts in unconventional element combinations
Authors: Krysiak Olga A. , Schumacher Simon , Savan Alan , Schuhmann Wolfgang , Ludwig Alfred , Andronescu Corina 
Published: July 2021

AbstractDespite outstanding accomplishments in catalyst discovery, finding new, more efficient, environmentally neutral, and noble metal-free catalysts remains challenging and unsolved. Recently, complex solid solutions consisting of at least five different elements and often named as high-entropy alloys have emerged as a new class of electrocatalysts for a variety of reactions. The multicomponent combinations of elements facilitate tuning of active sites and catalytic properties. Predicting optimal catalyst composition remains difficult, making testing of a very high number of them indispensable. We present the high-throughput screening of the electrochemical activity of thin film material libraries prepared by combinatorial co-sputtering of metals which are commonly used in catalysis (Pd, Cu, Ni) combined with metals which are not commonly used in catalysis (Ti, Hf, Zr). Introducing unusual elements in the search space allows discovery of catalytic activity for hitherto unknown compositions. Material libraries with very similar composition spreads can show different activities vs. composition trends for different reactions. In order to address the inherent challenge of the huge combinatorial material space and the inability to predict active electrocatalyst compositions, we developed a high-throughput process based on co-sputtered material libraries, and performed high-throughput characterization using energy dispersive X-ray spectroscopy (EDS), scanning transmission electron microscopy (SEM), X-ray diffraction (XRD) and conductivity measurements followed by electrochemical screening by means of a scanning droplet cell. The results show surprising material compositions with increased activity for the oxygen reduction reaction and the hydrogen evolution reaction. Such data are important input data for future data-driven materials prediction.
Something Scary is Out There II: the Interplay of Childhood Experiences, Relict Sexual Dinichism, and Cross-cultural Differences in Spatial Fears
Authors: Coss Richard G. , Blozis Shelley A. 
Published: July 2021

AbstractChildren’s nighttime fear is hypothesized as a cognitive relict reflecting a long history of natural selection for anticipating the direction of nighttime predatory attacks on the presumed human ancestor,Australopithecus afarensis, whose small-bodied females nesting in trees would have anticipated predatory attacks from below. Heavier males nesting on the ground would have anticipated nighttime predatory attacks from their sides. Previous research on preschool children and adults supports this cognitive-relict hypothesis by showing developmental consistencies in their remembrances of the location of a “scary thing” relative to their beds. The current study expands this research by investigating whether nighttime fear in childhood, including the effect of parental threats to behave, influenced adult spatial fears in different biotic and abiotic situations. A 25-item questionnaire employing ordinal scales was given to 474 foreign-born Vietnamese and ethnic Chinese adults living in the USA. Univariate analyses of adult remembrances of childhood indicated that females were more fearful of something scary below their beds than males. To examine the influence of childhood nighttime fear on adult fears, exploratory factor analyses supported three factors: (1) indeterminate agents, indicated something scary under the bed, the difficulty locating unspecific threats, and the brief appearances of large apparitions; (2) environmental uncertainty, indicated by potential encounters with unseen animate threats; (3) predictable animals, as the relative comfort of viewing animals in zoo exhibits. Using structural equation modeling, the results suggest that childhood nighttime fear influenced only the latent variable, indeterminate agents, in both groups via the mediating variable, parental threats.
„Choice and voice“ in Schulen mit personalisierten Lernkonzepten aus Sicht der Schülerinnen und Schüler
Authors: Mötteli Christine , Grob Urs , Pauli Christine , Reusser Kurt , Stebler Rita 
Published: July 2021

ZusammenfassungChoice and voiceist eine zentrale Forderung im Kontext personalisierter Lernkonzepte und steht für den Anspruch den Schüler*innenWahl- und Mitbestimmungsmöglichkeiteneinzuräumen. Unabhängig der neuen Rhetorik haben verschiedene innovative Schulen langjährige Praxiserfahrung mit Wahl- und Mitbestimmungsmöglichkeiten, wobei wenig über deren Wahrnehmung aus Sicht der Schüler*innen bekannt ist. Der vorliegende Beitrag untersucht, wie Schüler*innen der Sekundarstufe Ichoice and voicein Schulen mit personalisierten Lernkonzepten wahrnehmen.Die Ergebnisse zeigen, dass die Schüler*innen regelmäßig Wahlfreiheit wahrnehmen, insbesondere was lernorganisatorische Fragen betrifft. Die Möglichkeit, Inhalte und Ziele mitzubestimmen, nehmen sie als weniger ausgeprägt wahr. Der Personalisierungsgrad als Maß dafür, wie stark sich eine Schule aus Sicht der Lehrpersonen an personalisierten Lernkonzepten orientiert, erweist sich in einem Mehrebenen-Strukturgleichungsmodell als relevanter Prädiktor zur Vorhersage der Wahrnehmung der Schüler*innen in Bezug auf Wahl- und Mitbestimmungsmöglichkeiten. Des Weiteren zeigt sich, dass häufiger wahrgenommene Wahl- und Mitbestimmungsmöglichkeiten mit einer stärker positiv wahrgenommenen Unterstützung der Lehrperson einhergehen.Der Artikel leistet einen Beitrag zur Klärung des vielschichtigen Personalisierungsbegriffes, indem er zeigt, dasschoice and voicenicht nur aus theoretischer, sondern auch aus empirischer Sicht eine wichtige Dimension personalisierter Lernkonzepte darstellt.
Reproduction and biomarker responses of Eisenia fetida after exposure to imidacloprid in biochar-amended soil
Authors: Nyoka Ngitheni Winnie-Kate , Ogbeide Ozekeke , Otomo Patricks Voua 
Published: July 2021

AbstractTerrestrial and aquatic ecosystems are increasingly threatened by pesticide pollution resulting from extensive use of pesticides, and due to the lack of regulatory measures in the developing world, there is a need for affordable means to lessen environmental effects. This study aimed to investigate the impact of biochar amendment on the toxicity of imidacloprid to life-cycle parameters and biomarker responses of the earthworm Eisenia fetida. E. fetida was exposed to 10% biochar-amended and non-amended OECD artificial soils spiked with 0, 0.75, 1.5, 2.25 and 3 mg imidacloprid/kg for 28 days. An LC50 of 2.7 mg/kg was only computed in the non-amended soil but not in the biochar-amended soil due to insignificant mortality. The EC50 calculated in the non-amended soil (0.92 mg/kg) for reproduction (fertility) was lower than the one computed in the biochar amended (0.98 mg/kg), indicating a decrease in toxicity in the biochar-amended substrate. Significant weight loss was observed at the two highest imidacloprid treatments in the non-amended soil and only at the highest treatment in the biochar-amended substrate, further highlighting the beneficial effects of biochar. Catalase activity decreased significantly at the two highest concentrations of non-amended soil. Yet, in the amended soil, the activity remained high, especially in the highest concentration, where it was significantly higher than the controls. This indicated more severe oxidative stress in the absence of biochar. In all non-amended treatments, there was a significant acetylcholinesterase inhibition, while lower inhibition percentages were observed in the biochar-amended soil. In most endpoints, the addition of biochar alleviated the toxic effects of imidacloprid, which shows that biochar has the potential to be useful in soil remediation. However, there is still a need for field studies to identify the most effective application rate of biochar for land application.