bluuebunny/crossref_metadata_2025_split huggingface dataset:
Political Attention in a Creeping Crisis: The Case of Climate Change and Migration
Authors: Jakobsson Elin 
Published: May 2021

AbstractThis chapter discusses the creeping crisis of rising human displacement induced by environmental degradation and natural catastrophes. Sea-level rise, droughts, and the increased occurrence of hurricanes and floods already have, and increasingly will have, drastic effects on migration patterns. Climate-induced displacement already outnumbers displacement from war or violence. Nation states and the international community have consistently failed to properly address this phenomenon. Only recently has political attention begun to increase. This chapter argues that our understanding of climate-induced migration can be improved with the help of the creeping crisis concept. In addition, climate-induced migration may provide insights to the underlying mechanisms of creeping crises. More to the point, this chapter explores the rise and fall of political attention in this case, offers insights on what lies behind this and reflects upon the broader implications for the literature on creeping crises.
Towards Closure
Authors: Boin Arjen , McConnell Allan , ‘t Hart Paul 
Published: May 2021

AbstractHow will societies emerge from the COVID-19 crisis? Will there be a reckoning with failing institutions and crisis leaders? Will valuable lessons be learned? These are the perennial questions that dominate the transitional phase between crisis and a new normal. In this chapter, we discuss how lessons from previous crises help to understand the many challenges that lie ahead of us.
Holographic Rényi relative divergence in JT gravity
Authors: Ugajin Tomonori 
Published: May 2021

Abstract
We holographically compute the Rényi relative divergence Dα(ρ+||ρ−) between two density matrices ρ+, ρ− prepared by path integrals with constant background fields λ± coupled to a marginal operator in JT gravity. Our calculation is non-perturbative in the difference between two sources λ+− λ−. When this difference is large, the bulk geometry becomes a black hole with the maximal temperature allowed by the Rényi index α. In this limit, we find an analytical expression of the Rényi relative divergence, which is given by the on shell action of the back reacted black hole plus the contribution coming from the discontinuous change of the background field.
Integrated Interpretation of Magnetic and ERT Data to Characterize a Landfill in the North-West of Cologne, Germany
Authors: Ibraheem Ismael M. , Tezkan Bülent , Bergers Rainer 
Published: May 2021

AbstractElectrical resistivity tomography (ERT) and ground magnetic surveys were applied to characterize an old uncontrolled landfill in a former exploited sand and gravel quarry in an area to the north-west of the city of Cologne, Germany. The total magnetic field and its vertical gradient were recorded using a proton precession magnetometer to cover an area of about 43,250 m2. The magnetic data were transferred to the frequency domain and then reduced to the north magnetic pole. The amplitude of the analytical signal was calculated to define the magnetic materials within and outside the landfill. Eight ERT profiles were constructed based on the results of the magnetic survey using different electrode arrays (Wenner, dipole–dipole, and Schlumberger). In order to increase both data coverage and sensitivity and to decrease uncertainty, a non-conventional mixed array was used. The subsurface resistivity distributions were imaged using the robust (L1-norm) inversion method. The resultant inverted subsurface true resistivity data were presented in the form of 2D cross sections and 3D fence diagram. These non-invasive geophysical tools helped us to portray the covering soil, the spatial limits of the landfill, and the depth of the waste body. We also successfully detected low resistivity zones at deeper depths than expected, which probably be associated with migration pathways of the leachate plumes. The findings of the present study provide valuable information for decision makers with regards to environmental monitoring and assessment.
Development, characterization, and first application of a resonant laser secondary neutral mass spectrometry setup for the research of plutonium in the context of long-term nuclear waste storage
Authors: Schönenbach Daniela , Berg Felix , Breckheimer Markus , Hagenlocher Daniel , Schönberg Pascal , Haas Raphael , Amayri Samer , Reich Tobias 
Published: May 2021

AbstractPlutonium is a major contributor to the radiotoxicity in a long-term nuclear waste repository; therefore, many studies have focused on interactions of plutonium with the technical, geotechnical, and geological barriers of a possible nuclear waste storage site. In order to gain new insights into the sorption on surfaces and diffusion of actinides through these complex heterogeneous materials, a highly sensitive method with spatial resolution is required. Resonant laser secondary neutral mass spectrometry (Laser-SNMS) uses the spatial resolution available in time-of-flight secondary ion mass spectrometry (TOF-SIMS) in combination with the high selectivity, sensitivity, and low background noise of resonance ionization mass spectrometry (RIMS) and is, therefore, a promising method for the study and analysis of the geochemical behavior of plutonium in long-term nuclear waste storage. The authors present an approach with a combined setup consisting of a commercial TOF-SIMS instrument and a Ti:sapphire (Ti:Sa) laser system, as well as its optimization, characterization, and improvements compared to the original proof of concept by Erdmann et al. (2009). As a first application, the spatial distributions of plutonium and other elements on the surface of a pyrite particle and a cement thin section were measured by Laser-SNMS and TOF-SIMS, respectively. These results exemplify the potential of these techniques for the surface analysis of heterogeneous materials in the context of nuclear safety research.
Classification of Vertex-Transitive Zonotopes
Authors: Winter Martin 
Published: May 2021

AbstractWe give a full classification of vertex-transitive zonotopes. We prove that a vertex-transitive zonotope is a $$\Gamma $$
Γ
-permutahedron for some finite reflection group $$\Gamma \subset {{\,\mathrm{O}\,}}(\mathbb {R}^d)$$

Γ
⊂

O

(

R

d

)

. The same holds true for zonotopes in which all vertices are on a common sphere, and all edges are of the same length. The classification of these then follows from the classification of finite reflection groups. We prove that root systems can be characterized as those centrally symmetric sets of vectors, for which all intersections with half-spaces, that contain exactly half the vectors, are congruent. We provide a further sufficient condition for a centrally symmetric set to be a root system.
The birth of the Alps: Ediacaran to Paleozoic accretionary processes and crustal growth along the northern Gondwana margin
Authors: Siegesmund S. , Oriolo S. , Schulz B. , Heinrichs T. , Basei M. A. S. , Lammerer B. 
Published: May 2021

AbstractNew whole-rock geochemical and coupled U–Pb and Lu–Hf LA-ICP-MS zircon data of metasedimentary rocks of the Austroalpine, South Alpine and Penninic basement domains are presented, to disentangle the pre-Variscan tectonic evolution of the proto-Alps. The studied units seem to record distinct stages of protracted Late Ediacaran to Carboniferous tectonosedimentary processes prior to the Variscan collision. In the case of Austroalpine and South Alpine units, nevertheless, no major differences in terms of provenance are observed, since most detrital zircon samples are characterized by a major Pan-African peak. Their detrital zircon spectra record a provenance from the northeastern Saharan Metacraton and the Sinai basement at the northern Arabian-Nubian Shield, being thus located along the eastern Early Paleozoic northern Gondwana margin, whereas sources located further west are inferred for the Penninic Unit, which might have been placed close to the Moldanubian Unit of the Bohemian Massif. In any case, it is thus clear that the Alpine basement remained in a close position to the Gondwana mainland at least during the Early Paleozoic. The Late Ediacaran to Silurian tectonic evolution, which includes Cadomian and Cenerian tectonometamorphic and magmatic processes, seem thus to record a continuum related to a retreating-mode accretionary orogen, with diachronous back-arc basin opening and possibly discrete compressional/transpressional pulses linked to changes in subduction zone dynamics. On the other hand, it is inferred that the Alpine basement essentially comprises Pan-African metasedimentary and subordinate metaigneous rocks, possibly with very few Early Neoproterozoic relics. This basement was significantly reworked during the protracted Paleozoic orogenic evolution, due to anatexis and/or assimilation by mantle-derived juvenile magmatism.
The relationship between gut microbiota, short-chain fatty acids and type 2 diabetes mellitus: the possible role of dietary fibre
Authors: Salamone Dominic , Rivellese Angela Albarosa , Vetrani Claudia 
Published: May 2021

AbstractGut microbiota and its metabolites have been shown to influence multiple physiological mechanisms related to human health. Among microbial metabolites, short-chain fatty acids (SCFA) are modulators of different metabolic pathways. On the other hand, several studies suggested that diet might influence gut microbiota composition and activity thus modulating the risk of metabolic disease, i.e. obesity, insulin resistance and type 2 diabetes. Among dietary component, dietary fibre may play a pivotal role by virtue of its prebiotic effect on fibre-fermenting bacteria, that may increase SCFA production. The aim of this review was to summarize and discuss current knowledge on the impact of dietary fibre as modulator of the relationship between glucose metabolism and microbiota composition in humans. More specifically, we analysed evidence from observational studies and randomized nutritional intervention investigating the relationship between gut microbiota, short-chain fatty acids and glucose metabolism. The possible mechanisms behind this association were also discussed.
Type 2 diabetes mellitus and sepsis: state of the art, certainties and missing evidence
Authors: Costantini Elisa , Carlin Massimiliano , Porta Massimo , Brizzi Maria Felice 
Published: May 2021

AbstractDiabetes and sepsis are important causes of morbidity and mortality worldwide, and diabetic patients represent the largest population experiencing post-sepsis complications and rising mortality. Dysregulated immune pathways commonly found in both sepsis and diabetes contribute to worsen the host response in diabetic patients with sepsis. The impact of diabetes on mortality from sepsis is still controversial. Whereas a substantial proportion of severe infections can be attributed to poor glycemic control, treatment with insulin, metformin and thiazolidinediones may be associated with lower incidence and mortality for sepsis. It has been suggested that chronic exposure to high glucose might enhance immune adaptation, leading to reduced mortality rate in septic diabetic patients. On the other hand, higher risk of acute kidney injury has been extensively documented and a suggested lower risk of acute respiratory distress syndrome has been recently questioned. Additional investigations are ongoing to confirm the protective role of some anti-diabetic treatments, the occurrence of acute organ dysfunction, and the risk/benefit of less stringent glycemic control in diabetic patients experiencing sepsis. Based on a MEDLINE/PubMed search from inception to December 31, 2020, the aim of this review is therefore to summarize the strengths and weaknesses of current knowledge on the interplay between diabetes and sepsis.
The social and cultural shaping of cybersecurity capacity building: a comparative study of nations and regions
Authors: Creese Sadie , Dutton William H. , Esteve-González Patricia 
Published: May 2021

AbstractThis paper presents an empirical study of the social and cultural aspects of cybersecurity capacity building in 78 nations. While nations within geographically defined regions might be expected to share similar attitudes, values, and practices around cybersecurity, this analysis finds that regional differences can be explained largely by cross-national differences in development and the scale of Internet use. These results question the centrality of regions in shaping social and cultural attributes directly tied to cybersecurity capacity. However, the analysis identifies some countries with greater and some with lesser levels of maturity in capacity building than expected only on the basis of their development and scale of Internet use. Further research focused on the dynamics of under- and over-performance of different nations might illuminate where regional contexts could place a brake on, or provide an impetus for, under- or over-performance in cybersecurity capacity building. That said, national development and the scale of Internet use are the most explanatory of cultural attitudes, values, and practices of societies tied to cybersecurity, such as trust on the Internet.
Beyond self-reflection: introducing the concept of rumination in personal informatics
Authors: Eikey Elizabeth Victoria , Caldeira Clara Marques , Figueiredo Mayara Costa , Chen Yunan , Borelli Jessica L. , Mazmanian Melissa , Zheng Kai 
Published: May 2021

AbstractPersonal informatics tools can help users self-reflect on their experiences. When reflective thought occurs, it sometimes leads to negative thought and emotion cycles. To help explain these cycles, we draw from Psychology to introduce the concept of rumination—anxious, perseverative cognition focused on negative aspects of the self—as a result of engaging with personal data. Rumination is an important concept for the Human Computer Interaction community because it can negatively affect users’ well-being and lead to maladaptive use. Thus, preventing and mitigating rumination is beneficial. In this conceptual paper, we differentiate reflection from rumination. We also explain how self-tracking technologies may inadvertently lead to rumination and the implications this has for design. Our goal is to expand self-tracking research by discussing these negative cycles and encourage researchers to consider rumination when studying, designing, and promoting tools to prevent adverse unintended consequences among users.
Plant ecophysiological processes in spectral profiles: perspective from a deciduous broadleaf forest
Authors: Noda Hibiki M. , Muraoka Hiroyuki , Nasahara Kenlo Nishida 
Published: May 2021

AbstractThe need for progress in satellite remote sensing of terrestrial ecosystems is intensifying under climate change. Further progress in Earth observations of photosynthetic activity and primary production from local to global scales is fundamental to the analysis of the current status and changes in the photosynthetic productivity of terrestrial ecosystems. In this paper, we review plant ecophysiological processes affecting optical properties of the forest canopy which can be measured with optical remote sensing by Earth-observation satellites. Spectral reflectance measured by optical remote sensing is utilized to estimate the temporal and spatial variations in the canopy structure and primary productivity. Optical information reflects the physical characteristics of the targeted vegetation; to use this information efficiently, mechanistic understanding of the basic consequences of plant ecophysiological and optical properties is essential over broad scales, from single leaf to canopy and landscape. In theory, canopy spectral reflectance is regulated by leaf optical properties (reflectance and transmittance spectra) and canopy structure (geometrical distributions of leaf area and angle). In a deciduous broadleaf forest, our measurements and modeling analysis of leaf-level characteristics showed that seasonal changes in chlorophyll content and mesophyll structure of deciduous tree species lead to a seasonal change in leaf optical properties. The canopy reflectance spectrum of the deciduous forest also changes with season. In particular, canopy reflectance in the green region showed a unique pattern in the early growing season: green reflectance increased rapidly after leaf emergence and decreased rapidly after canopy closure. Our model simulation showed that the seasonal change in the leaf optical properties and leaf area index caused this pattern. Based on this understanding we discuss how we can gain ecophysiological information from satellite images at the landscape level. Finally, we discuss the challenges and opportunities of ecophysiological remote sensing by satellites.
Recent advances in evolutionary and bio-inspired adaptive robotics: Exploiting embodied dynamics
Authors: Husbands Phil , Shim Yoonsik , Garvie Michael , Dewar Alex , Domcsek Norbert , Graham Paul , Knight James , Nowotny Thomas , Philippides Andrew 
Published: May 2021

AbstractThis paper explores current developments in evolutionary and bio-inspired approaches to autonomous robotics, concentrating on research from our group at the University of Sussex. These developments are discussed in the context of advances in the wider fields of adaptive and evolutionary approaches to AI and robotics, focusing on the exploitation of embodied dynamics to create behaviour. Four case studies highlight various aspects of such exploitation. The first exploits the dynamical properties of a physical electronic substrate, demonstrating for the first time how component-level analog electronic circuits can be evolved directly in hardware to act as robot controllers. The second develops novel, effective and highly parsimonious navigation methods inspired by the way insects exploit the embodied dynamics of innate behaviours. Combining biological experiments with robotic modeling, it is shown how rapid route learning can be achieved with the aid of navigation-specific visual information that is provided and exploited by the innate behaviours. The third study focuses on the exploitation of neuromechanical chaos in the generation of robust motor behaviours. It is demonstrated how chaotic dynamics can be exploited to power a goal-driven search for desired motor behaviours in embodied systems using a particular control architecture based around neural oscillators. The dynamics are shown to be chaotic at all levels in the system, from the neural to the embodied mechanical. The final study explores the exploitation of the dynamics of brain-body-environment interactions for efficient, agile flapping winged flight. It is shown how a multi-objective evolutionary algorithm can be used to evolved dynamical neural controllers for a simulated flapping wing robot with feathered wings. Results demonstrate robust, stable, agile flight is achieved in the face of random wind gusts by exploiting complex asymmetric dynamics partly enabled by continually changing wing and tail morphologies.
Towards the standardization of methods of tissue processing for the isolation of mesenchymal stromal cells for clinical use
Authors: García-Muñoz Elisabeth , Vives Joaquim 
Published: May 2021

AbstractMultipotent mesenchymal stromal cells (MSCs) are currently the most extensively studied type of adult stem cells in advanced stages of development in the field of regenerative medicine. The biological properties of MSCs have generated great hope for their therapeutic use in degenerative and autoimmune conditions that, at present, lack effective treatment options. Over the last decades, MSCs have been typically obtained from adult bone marrow, but the extraction process is highly invasive and the quality and numbers of isolated cells is drastically influenced by patient age, medication and associated comorbidities. Therefore, there is currently an open discussion on the convenience of allogeneic over autologous treatments, despite potential disadvantages such as rejection by the host. This shift to the allogeneic setting entails the need for high production of MSCs to ensure availability of sufficient cell numbers for transplantation, and therefore making the search for alternative tissue sources of highly proliferative MSC cultures with low levels of senescence occurrence, which is one of the greatest current challenges in the scale up of therapeutic cell bioprocessing. Herein we (i) present the main isolation protocols of MSCs from bone marrow, adipose tissue and Wharton’s jelly of the umbilical cord; and (ii) compare their qualities from a bioprocess standpoint, addressing both quality and regulatory aspects, in view of their anticipated clinical use.
Pharmacists in advanced clinical practice roles in emergency departments (PARED)
Authors: Terry David , Ganasan Shalini , Aiello Matthew , Huynh Chi , Wilkie Veronica , Hughes Elizabeth 
Published: May 2021

AbstractBackground Following evidence published in the Pharmacists in Emergency Departments (PIED 2016) study Health Education England funded novel advanced clinical practitioner training for pharmacists (ACP-p), to support service delivery.Objective To explore experiences and clinical activity of trainee ACP-p, and opinions and recommendations of both trainees and clinical supervisors.Setting Five Urgent/Emergency Care Departments in London UK.Method Longitudinal mixed-methods study in three phases of registered UK pharmacists appointed as trainee ACP-p. Phase 1 (May-July 2019) – early semi-structured interviews and focus group using an experiences, opinions and recommendations (EOR) framework, Phase 2 (January-December 2019) – prospective recording of trainee clinical activity, standardised using bespoke spreadsheet, Phase 3 (November-December 2019) – as Phase 1 but at conclusion of training.Main outcome measure Experiences, clinical activity, opinions and recommendations of study participants.Results Twelve (92 %) eligible trainee ACP-p and five supervisors were recruited. Identified themes were: trainee personality, educational components, length of programme, support/supervision, career transition, university and placement training alignment, recommendations. Success was dependent on effective support and supervision. Clinical supervisors should be allocated adequate supervision time. Trainees, their supervisors and emergency department staff should be given a clear brief. Study participants agreed that the programme could be successful. Trainee ACP-p reported that they could manage 82 % of 713 pre-selected clinical presentations. Additional training needs include: ECGs, X-rays and CT scans.Conclusions Pharmacists can successfully train as ACP-p in this setting over a two-year period. This career transition needs careful management and clear structures. Training ACP-p is a useful way of enhancing skills and supporting clinical services to large numbers of patients.