bluuebunny/crossref_metadata_2025 huggingface dataset:
The Future Challenges of Food and Agriculture: An Integrated Analysis of Trends and Solutions
Authors: Calicioglu Ozgul , Flammini Alessandro , Bracco Stefania , Bellù Lorenzo , Sims Ralph
Published: January 2019

The availability, access, utilization and stability of food supply over time are the four pillars of food security which support nutrition outcomes. Addressing the issues raised globally around these pillars remains a challenge. The Food and Agriculture Organization of the United Nations (FAO) 2017 report “The future of food and agriculture: trends and challenges” outlined the challenges which will have to be addressed in order for sustainable agricultural services to cost-effectively meet the growing food demand of the world population. In this study, we systematically analyzed the future challenges of the agriculture and food systems by focusing on (1) their root causes and trends; and (2) the interlinkages among the solutions proposed to address the challenges using social network analysis tools. It found that, if trends leading to extreme poverty are reversed, several other challenges will also be partially addressed and that climate change has the highest impact on the network of trends. Improving food security would have positive impacts on food access and utilization. The clear outline of the qualitative relationships among challenges presented and insights will help their prioritization by decision makers. However, additional in-depth quantitative analysis is necessary before measures identified to tackle the challenges could be effectively implemented.
Hydraulic Mission at Home, Hydraulic Mission abroad? Examining Turkey’s Regional ‘Pax-Aquarum’ and Its Limits
Authors: Conker Ahmet , Hussein Hussam
Published: January 2019

Water resource development has always been considered as a strategic tool by the Turkish ruling elites to reach food and energy security, as well as to enhance domestic peace and stability since the foundation of the Republic of Turkey. Therefore, the concept of “hydraulic mission” fits this strategic understanding, and it has become a prevailing paradigm in Turkey’s water resource development. Many academic works have already been conducted to understand how Turkey has waged an ambitious hydraulic mission by securitizing its water resource development primarily on economic and political bases. However, fewer studies have shown how the Turkish ruling elites have also considered Turkey’s extensive hydraulic development, sanctioned by the hydraulic mission, as a foreign policy tool to enhance its influence at the international level. Drawing primarily upon the concept of opportunitisation and the body of literature that looks at, albeit indirectly, the international aspect of the hydraulic mission, this study fills this gap in the literature by looking at three case studies: The Southeastern Anatolian Project (GAP), the Water Export Initiatives to the Middle East, and the Water Transfer Project to Cyprus, namely the Peace Water Project. Being informed by an in-depth investigation of those three case studies, this study argues that ambitious hydraulic development projects conducted by the Turkish government do not only serve to keep peace and stability at the domestic level, but they are also strategic tools to enhance Turkey’s influence abroad. However, this study also shows the limits of Turkey’s hydraulic mission abroad. While Turkey promotes those water initiatives as tools for improving regional peace and stability, they are challenged by the recipient countries on social, economic, and political bases.
Effect of pH, Acid and Thermal Treatment Conditions on Co/CNT Catalyst Performance in Fischer–Tropsch Reaction
Authors: Akbarzadeh Omid , Mohd Zabidi Noor Asmawati , Hamizi Nor Aliya , Abdul Wahab Yasmin , Aljunid Merican Zulkifli Merican , Yehya Wageeh A. , Akhter Shamima , Shalauddin Md. , Rasouli Elisa , Johan Mohd Rafie
Published: January 2019

Multiwalled carbon nanotubes (CNT) supported cobalt oxide was prepared as a catalyst by strong electrostatic adsorption (SEA) method. The CNT support was initially acid- and thermal-treated in order to functionalize the support to uptake more Co clusters. The Co/CNT were characterized by a range of analytical methods including transmission electron microscopy (TEM), temperature programmed reduction with hydrogen (H2-TPR), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, atomic absorption spectroscopy (AAS), Zeta sizer particle size analysis and Brunauer–Emmett–Teller (BET) surface area analysis. TEM images showed cobalt particles were highly dispersed and impregnated at both exterior and interior walls of the CNT support with a narrow particle size distribution of 6–8 nm. In addition, the performance of the synthesized Co/CNT catalyst was tested using Fischer–Tropsch synthesis (FTS) reaction which was carried out in a fixed-bed micro-reactor. H2-TPR profiles indicated the lower reduction temperature of 420 °C was required for the FTS reaction. The study revealed that cobalt is an effective metal for Co/CNT catalysts at pH 14 and at 900 °C calcination temperature. Furthermore, FTS reaction results showed that CO conversion and C5+ selectivity were recorded at 58.7% and 83.2% respectively, which were higher than those obtained using a Co/CNT catalyst which pre-treated at a lower thermal treatment temperature and pH.
Presence of Burkholderia pseudomallei in the ‘Granary of Myanmar’
Authors: Win Tun Tun , Su Khine Khine , Than Aye Min , Htut Zaw Min , Pyar Khin Phyu , Ashley Elizabeth A. , Dance David A. B. , Tun Kyaw Myo
Published: January 2019

Melioidosis is a frequently fatal infectious disease caused by the Gram negative bacillus Burkholderia pseudomallei. Although it was originally discovered in Myanmar, the disease disappeared from sight for many decades. This study focuses on detection of B. pseudomallei in soil in selected sampling sites in an attempt to start to fill the gaps in the current status of our knowledge of the geographical distribution of B. pseudomallei in soil in Myanmar. This cross-sectional study consists of 400 soil samples from 10 selected study townships from two major paddy growing regions. Bacterial isolation was done using a simplified method for the isolation of Burkholderia pseudomallei from soil. In this study, only 1% (4/400) of soil samples were found to be positive; two of four were found at 90 cm depth and another two positive samples were found at 30 cm and 60 cm. This survey has confirmed the presence of environmental B. pseudomallei in Myanmar indicating that the conditions are in place for melioidosis acquisition.
Physical Justifications and Possible Astrophysical Manifestations of the Projective Theory of Relativity
Authors: Rubin Jacques L.
Published: January 2019

The ‘projective theory of relativity’ is a theory developed historically by Oswald Veblen and Banesh Hoffmann, Jan Arnoldus Schouten and David van Dantzig. This theory differs radically from Kaluza-Klein/conformal type theories of spacetime, although it shares with these theories geometric aspects in five-dimensional spaces. The peculiarity of the projective geometries involved in this theory was that it is based on spaces coordinated by five so-called ‘homogeneous coordinates.’ Since then, no physical observables could be ascribed to these five homogeneous coordinates and, in particular, during the elaboration of this theory which consequently fell completely into oblivion. We will present how this projective theory of relativity can be fully justified physically from the causal structures and localizing protocols involved in so-called ‘relativistic localizing systems’ that extend ‘relativistic positioning systems.’ We explain the correspondence between ‘homogeneous coordinates’ of the projective theory of relativity and the physical observables defined in relativistic localizing systems. Then, possible astrophysical manifestations will be presented based on projective effects, invariance of interactions, or observations with respect to projective transformations.
Open Charm Measurements at CERN SPS Energies with the New Vertex Detector of the NA61/SHINE Experiment: Status and Plans
Authors: Merzlaya Anastasia ,   on behalf of the NA61/SHINE Collaboration
Published: January 2019

The study of open charm meson production provides an efficient tool for detailed investigations of the properties of hot and dense matter formed in nucleus-nucleus collisions. The interpretation of the existing data from the CERN Super Proton Synchrotron (SPS) suffers from a lack of knowledge about the total charm production rate. To overcome this limitation, the heavy-ion program of the NA61/SHINE experiment at the CERN SPS has been upgraded to allow for precise measurements of particles with a short lifetime. A new vertex detector (Small Acceptance version of the Vertex Detector (SAVD)) was constructed to meet the challenges of open charm measurements in nucleus-nucleus collisions. The first exploratory data taking of Pb + Pb collisions at 150A GeV/c with the SAVD was performed in 2016, and a D 0 signal was extracted in its D 0 → π + + K − decay channel. This was the first, direct observation of open charm in nucleus-nucleus collisions at the SPS energies. Furthermore, the future plans of open charm measurements in the NA61/SHINE experiment related to the upgraded version of the Vertex Detector are discussed.
A Thickness Illusion: Horizontal Is Perceived as Thicker than Vertical
Authors: De Waard Jasper M. , Van der Burg Erik , Olivers Christian N. L.
Published: January 2019

We report two psychophysical experiments that investigate a visual illusion that is considered common knowledge among type designers, but has never been studied scientifically. Specifically, the thickness of a horizontal line is overestimated in relation to that of a vertical line. Experiment 1 confirmed the existence of the illusion. In Experiment 2, we replicated the effect and showed that the illusion is closely related to the vertical-horizontal illusion, in which the length of a vertical line is overestimated in comparison to a horizontal one. Both the overestimation of thickness and length is larger when the stimulus is surrounded by a horizontally elongated frame, as opposed to a vertically elongated frame. We discuss potential explanations for the thickness illusion and its relation to the vertical-horizontal illusion.
Variations of Surface and Subsurface Water Storage in the Lower Mekong Basin (Vietnam and Cambodia) from Multisatellite Observations
Authors: Pham-Duc Binh , Papa Fabrice , Prigent Catherine , Aires Filipe , Biancamaria Sylvain , Frappart Frédéric
Published: January 2019

In this study, we estimate monthly variations of surface-water storage (SWS) and subsurface water storage (SSWS, including groundwater and soil moisture) within the Lower Mekong Basin located in Vietnam and Cambodia during the 2003–2009 period. The approach is based on the combination of multisatellite observations using surface-water extent from MODIS atmospherically corrected land-surface imagery, and water-level variations from 45 virtual stations (VS) derived from ENVISAT altimetry measurements. Surface-water extent ranges from ∼6500 to ∼40,000 km 2 during low and high water stages, respectively. Across the study area, seasonal variations of water stages range from 8 m in the upstream parts to 1 m in the downstream regions. Annual variation of SWS is ∼40 km 3 for the 2003–2009 period that contributes to 40–45% of total water-storage (TWS) variations derived from Gravity Recovery And Climate Experiment (GRACE) data. By removing the variations of SWS from GRACE-derived TWS, we can isolate the monthly variations of SSWS, and estimate its mean annual variations of ∼50 km 3 (55–60% of the TWS). This study highlights the ability to combine multisatellite observations to monitor land-water storage and the variations of its different components at regional scale. The results of this study represent important information to improve the overall quality of regional hydrological models and to assess the impacts of human activities on the hydrological cycles.
Erratum: Li, Z., et al. Objectives and Indexes for Implementation of Sponge Cities—A Case Study of Changzhou City, China. Water 2018, 10, 623
Authors: Li Zhengzhao , Dong Mingjing , Wong Tony , Wang Jianbin , Kumar Alagarasan , Singh Rajendra
Published: January 2019

The authors wish to make the following correction to their paper [...]
Atlas of Experimental and Theoretical High-temperature Methane Cross Sections from T = 295 to 1000 K in the Near-infrared
Authors: Wong Andy , Bernath Peter F. , Rey Michael , Nikitin Andrei V. , Tyuterev Vladimir G.
Published: January 2019

Spectra of hot methane were recorded using a tube furnace and a high-resolution Fourier transform spectrometer. We obtained experimental absorption spectra in the 1.85–1.11 μm near-infrared region at eight temperatures ranging from 295 K up to 1000 K. We have converted these into an atlas of absorption cross sections at each temperature for the methane tetradecad, icosad and triacontad polyads, excluding some spectral intervals either strongly contaminated by water or due to baseline fringes. On the theoretical side, the spectra were simulated from the ab initio-based Reims-Tomsk TheoReTS line list for the same experimental conditions. This line list has been constructed by global variational calculations from potential energy and dipole moment surfaces followed by empirical line position corrections deduced from previously published analyses. The comparisons showed very good overall agreement between observations and theory at high spectral resolution for the tetradecad and icosad and at medium or low resolution above this range. A full set of the theoretical absorption cross sections is also included. Detailed temperature dependence of the methane absorption enables the efficient method of remotely probing the temperature of distant astronomical objects based on a comparison of relative signals in carefully selected spectral intervals. This first combined experimental and theoretical easy-to-use cross-section library in the near-infrared should be of major interest for the interpretation of current and future astronomical observations up to a resolving power of 100,000–300,000 in the range 6400–7600 cm−1 and a resolving power of 5000–10,000 in the higher wavenumber range up to 9000 cm−1.
VUV Spectral Irradiance Measurements in H2/He/Ar Microwave Plasmas and Comparison with Solar Data
Authors: Es-sebbar Et-touhami , Bénilan Yves , Fray Nicolas , Cottin Hervé , Jolly Antoine , Gazeau Marie-Claire
Published: January 2019

Microwave plasmas with H2 and H2/rare gas mixtures are convenient sources of VUV radiation for laboratory simulations of astrophysical media. We recently undertook an extensive study to characterize microwave plasmas in an H2/He gas mixture in order to optimize a VUV solar simulator over the 115–170 nm spectral range. In this paper, we extend our investigation to the effect of the addition of Ar into H2/He plasma on the VUV spectral irradiance. Our study combines various optical diagnostics such as a VUV spectrometer and optical emission spectroscopy. Quantitative measurements of the spectral irradiance and photons flux in different mixtures are accomplished using a combination of VUV spectrometry and chemical actinometry. Results show that the Ar addition into H2/He plasma largely affects the predominant emissions of the hydrogen Lyα line (121.6 nm) and H2 (B1Σu–X1Σg) band (150–170 nm). While a microwave plasma with 1.4% H2/He is required to mimic the entire VUV solar spectrum in the 115–170 nm range, the combination with 1.28% H2/35% Ar/He is the best alternative to obtain a quasi-monochromatic spectrum with emission dominated by the Lyα line. The maximum of the spectral irradiance is significantly higher in the ternary mixtures compared to the binary mixture of 1.4% H2/He. Further Ar increase yielded lower spectral irradiance and absolute photon fluxes. Our measured spectral irradiances are compared to VUV solar data in the 115–170 nm range, emphasizing the use of microwave plasmas in astrophysical studies and laboratory simulations of planetary atmospheres.
Creating a Context for Professional Dialogue Between United States and Russian Nurses: Design of an International Conference
Authors: Driever Marie J , Perfiljeva Galina , Callister Lynn Clark , McGivern Sean
Published: January 2019

ABSTRACT

This age of globalization challenges nurses to find effective ways to promote interaction to further scholarly efforts across cultural boundaries. This article describes critical conference design elements necessary to create a context for transnational professional dialogue. Collaborative efforts such as study exchanges and workshops resulting from this conference have fostered dialogue on ways to strengthen nursing practice to improve patient and family outcomes in the United States and Russia. The design of such a conference can serve as a model for promoting joint scholarly efforts to increase understanding among nurses across the globe.
Attention and Restoration in Post-RN Students
Authors: Sanders Christina M , Yankou Dawn , Andrusyszyn Mary-Anne
Published: January 2019

ABSTRACT

Background: The impact of a restorative intervention using the natural environment on capacity to direct attention and issues that contribute to attention fatigue for diploma-prepared nursing students (Post-RN students) enrolled in a baccalaureate nursing program was examined.

Methods: This study used a quasi-experimental comparison group design. Subjective (Attentional Functional Index) and objective (Finding A's Test and Symbol Digits Modalities Test) measures were employed.

Results: Thirty-two students at two universities participated. Results of the split-plot analysis revealed a within-subject effect on the Attentional Functional Index (p< .05), a significant within-subject effect on the Finding A's Test (p < .05), and a significant within- and between-subject effect on the Symbol Digits Modalities Test (p< .05).

Conclusion: Recognizing and managing attention fatigue throughout the school year may enhance Post-RN students' abilities to direct attention and contribute to an enhanced academic experience.
Nursing Competency Assessment Across the Continuum of Care
Authors: Arcand Lori L , Neumann Julie A
Published: January 2019

ABSTRACT

Establishing a thorough and effective competency assessment program is essential to meeting standards of regulatory bodies and providing quality care. Nursing education specialists continue to strive to provide a competency assessment process that is meaningful and uncomplicated. This article describes the implementation of a nursing competency assessment program in a large midwestern medical center that spans the continuum of care and incorporates all nursing roles that require nursing licensure, including advanced practice nurses, into one centralized nursing competency program. Competency program infrastructure, topic identification, documentation to support the evaluation and validation process, and continuous improvement opportunities are described.
CLASSIFICATION AND TREATMENT OF CORONOID PROCESS FRACTURES
Authors: Regan W , Morrey Bernard F
Published: January 2019

ABSTRACT

Fractures of the coronoid process are rare as isolated injuries and usually are associated with significant, sometimes devastating trauma to the elbow. The classification system based on the degree of involvement has proven helpful to estimate prognosis and to help guide treatment. Severe fractures are generally associated with instability and portend a poor prognosis. Treatment by distraction, external fixation, and early motion has been encouraging.
La couleur rhétorique au xviiie siècle, entre esthétique et èthos oratoire idéal. Comment la critique de Milton poète en porte témoignage
Authors: Bois Catherine
Published: January 2019

La couleur rhétorique désigne chez Cicéron et Hermogène une tonalité générale du discours, dont l’èthos s’oppose aux séductions de l’imagination. Quand le pathétique et le sublime unissent poésie et éloquence après la Renaissance, la couleur excède l’ornementation des styles. Au xviiie siècle en Grande-Bretagne, sa puissance réflexive nourrit l’esthétisation de la rhétorique. Le belle-lettriste Adam Smith transforme l’ornement en couleur d’inventio, le style en écriture. La critique de Milton témoigne d’une labilité inédite entre èthos oratorial, logos discursif, pathos auditorial. Les rhétoriciens classiques relèvent les couleurs sublimes du poète, les néo-rhétoriciens sa précision. Addison et Blair définissent un style miltonien précis et sublime où la couleur esthétise les figures. Sa difficulté achoppe sur l’allégorie « Sin and Death ». Chez les premiers romantiques l’elocutio se fait couleur de l’imagination, Milton surfiguration du poète orateur dont l’èthos idéal prophétise la rhétoricité. Imprégnée d’enargeia, la diction des couleurs naturelles engage l’indétermination du sens.
Blue in Eighteenth-Century England: Pigments and Usages
Authors: Lotut Zoriana
Published: January 2019

Cet article cherche à explorer la matérialité de la couleur bleue dans l’Angleterre du xviiie siècle, en se concentrant sur l’indigo et le bleu de Prusse, qui ont dominé quantitativement et qualitativement le marché du colorant bleu au xviiie siècle. L’afflux en Europe, dont en Angleterre, de l’indigo d’importation atteignit son apogée au xviiie siècle ; tandis que la découverte du bleu de Prusse au début de ce siècle eut un grand impact sur l’utilisation d’autres pigments bleus compatibles. L’article tentera d’éclairer les raisons de l’augmentation rapide de l’importation d’indigo, et de la popularité du bleu de Prusse ; examinant en outre la façon dont ces développements ont influencé d’autres pigments bleus.
Paese che vai usanza che trovi, tra cosmo e campanile
Authors: Clemente Pietro
Published: January 2019

Negli ultimi decenni, in Italia, di pari passo con l’avanzata della modernizzazione e della globalizzazione, vi è stata la coesistenza di due processi. Il primo è lo spopolamento cui sono andati incontri molti piccoli paesi, in seguito alla massiccia migrazione dei giovani verso i maggiori centri urbani. Il secondo è una generale riscoperta dell’originalità e ricchezza delle culture locali ereditate dal passato, le quali, anche oggi, non solo contraddistinguono il senso dei luoghi e dell’appartenenza ad essi, ma costituiscono una risorsa fondamentale per l’immaginazione del futuro e dell’abitare in esso da parte delle generazioni più giovani. Nella lectio, rivolgendosi idealmente prima di tutto alle generazioni più giovani, l’autore riflette retrospettivamente sul suo contributo, nel corso degli anni, alla discussione di questi temi, soffermandosi in particolare sul suo sforzo di intrecciare la tradizione italiana degli studi di folklore e antropologia con, da una parte, l’attenzione, nei lavori del sociologo Giacomo Becattini e dell’urbanista Alberto Magnaghi, per le nuove forme di “coscienza dei luoghi”, e, soprattutto, con il lavoro di James Clifford sui processi del “diventare indigeno nel Ventunesimo Secolo” in Oceania e nelle Americhe.
Considerations for Athletic Trainers: A Review of Guidance on Mild Traumatic Brain Injury Among Children From the Centers for Disease Control and Prevention and the National Athletic Trainers' Association
Authors: Register-Mihalik Johna K. , Sarmiento Kelly , Vander Vegt Christina B. , Guskiewicz Kevin M.
Published: January 2019

The Centers for Disease Control and Prevention recently published an evidence-based guideline, “Diagnosis and Management of Mild Traumatic Brain Injury (mTBI) Among Children.” The guideline has many applications for athletic trainers. The following commentary provides considerations for athletic trainers regarding the guideline in conjunction with the current National Athletic Trainers' Association position statement “Management of Sport Concussion” and the “Consensus Statement on Concussion in Sport—The 5th International Conference on Concussion in Sport Held in Berlin, October 2016.”
National Athletic Trainers' Association Position Statement: Immediate Management of Appendicular Joint Dislocations
Authors: Rozzi Susan L. , Anderson Jeffrey M. , Doberstein Scott T. , Godek Joseph J. , Hartsock Langdon A. , McFarland Edward G.
Published: January 2019

Objective

To provide certified athletic trainers (ATs) with recommendations and guidelines for the immediate management of patients with joint dislocations.

Background

One of the primary responsibilities of ATs is to provide immediate injury care for active individuals. Although ATs are confronted with managing patients who have many kinds of injuries, the onsite management of a joint dislocation presents challenges in evaluation and immediate treatment. The critical concern in managing a dislocation is deciding when a joint can be reduced onsite and when the patient should be splinted and transported for reduction to be performed in the hospital or medical setting. Factors that influence the decision-making process include the following: whether the AT possesses a documented protocol that is supported by his or her supervising physician(s), employer documents, and respective state regulations; the AT's qualifications and experience; the dislocated joint; whether the dislocation is first time or recurrent; the patient's age and general health; and whether associated injuries are present.

Recommendations

These guidelines are intended to provide considerations for the initial care of specific joint dislocations. They are not intended to represent the standard of care and should not be interpreted as a standard of care for therapeutic or legal discussion.
Mathematical Methods in Quantum Chemistry
Authors: Cancès Eric , Friesecke Gero , Helgaker Trygve Ulf , Lin Lin
Published: January 2019

The field of quantum chemistry is concerned with the modelling and simulation of the behaviour of molecular systems on the basis of the fundamental equations of quantum mechanics. Since these equations exhibit an extreme case of the curse of dimensionality (the Schrödinger equation for

N

electrons being a partial differential equation on

\mathbb R^{3N}

), the quantum-chemical simulation of even moderate-size molecules already requires highly sophisticated model-reduction, approximation, and simulation techniques. The workshop brought together selected quantum chemists and physicists, and the growing community of mathematicians working in the area, to report and discuss recent advances on topics such as coupled-cluster theory, direct approximation schemes in full configuration-interaction (FCI) theory, interacting Green’s functions, foundations and computational aspects of density-functional theory (DFT), low-rank tensor methods, quantum chemistry in the presence of a strong magnetic field, and multiscale coupling of quantum simulations.
Topology of Arrangements and Representation Stability
Authors: Denham Graham , Gaiffi Giovanni , Jímenez Rolland Rita , Suciu Alexander I.
Published: January 2019

The workshop “Topology of arrangements and representation stability” brought together two directions of research: the topology and geometry of hyperplane, toric and elliptic arrangements, and the homological and representation stability of configuration spaces and related families of spaces and discrete groups. The participants were mathematicians working at the interface between several very active areas of research in topology, geometry, algebra, representation theory, and combinatorics. The workshop provided a thorough overview of current developments, highlighted significant progress in the field, and fostered an increasing amount of interaction between specialists in areas of research.
Statistics for Data with Geometric Structure
Authors: Feragen Aasa , Hotz Thomas , Huckemann Stephan , Miller Ezra
Published: January 2019

Statistics for data with geometric structure is an active and diverse topic of research. Applications include manifold spaces in directional data or symmetric positive definite matrices and some shape representations. But in some cases, more involved metric spaces like stratified spaces play a crucial role in different ways. On the one hand, phylogenetic trees are represented as points in a stratified data space, whereas branching trees, for example of veins, are data objects, whose stratified structure is of essentia importance. For the latter case, one important tool is persistent homology, which is currently a very active area of research. As data sets become not only larger but also more complex, the need for theoretical and methodological progress in dealing with data on non-Euclidean spaces or data objects with nontrivial geometric structure is growing. A number of fundamental results have been achieved recently and the development of new methods for refined, more informative data representation is ongoing. Two complimentary approaches are pursued: on the one hand developing sophisticated new parameters to describe the data, like persistent homology, and on the other hand achieving simpler representations in terms of given parameters, like dimension reduction. Some foundational works in stochastic process theory on manifolds open the doors to this field and stochastic analysis on manifolds, thus enabling a well-founded treatment of non-Euclidean dynamic data. The results presented in the workshop by leading experts in the field are great accomplishments of collaboration between mathematicians from statistics, geometry and topology and the open problems which were discussed show the need for an expansion of this interdisciplinary effort, which could also tie in more closely with computer science.
Variational Methods for the Modelling of Inelastic Solids
Authors: Dolzmann Georg , Garroni Adriana , Hackl Klaus , Ortiz Michael
Published: January 2019

This workshop brought together two communities working on the same topic from different perspectives. It strengthened the exchange of ideas between experts from both mathematics and mechanics working on a wide range of questions related to the understanding and the prediction of processes in solids. Common tools in the analysis include the development of models within the broad framework of continuum mechanics, calculus of variations, nonlinear partial differential equations, nonlinear functional analysis, Gamma convergence, dimension reduction, homogenization, discretization methods and numerical simulations. The applications of these theories include but are not limited to nonlinear models in plasticity, microscopic theories at different scales, the role of pattern forming processes, effective theories, and effects in singular structures like blisters or folding patterns in thin sheets, passage from atomistic or discrete models to continuum models, interaction of scales and passage from the consideration of one specific time step to the continuous evolution of the system, including the evolution of appropriate measures of the internal structure of the system.
Design and Analysis of Infectious Disease Studies
Authors: Eichner Martin , Halloran M. Elizabeth , O'Neill Philip D.
Published: January 2019

This was the fifth workshop on mathematical and statistical methods on the transmission of infectious diseases. Building on epidemiologic models which were the subject of earlier workshops, this workshop concentrated on disentangling who infected whom by analysing high-resolution genomic data of pathogens which were routinely collected during disease outbreaks. Following the trail of the small mutations which continuously occur in different places of the pathogens’ genomes, mathematical tools and computational algorithms were used to reconstruct transmission trees and contact networks.
Mini-Workshop: Chromatic Phenomena and Duality in Homotopy Theory and Representation Theory
Authors: Barthel Tobias , Krause Henning , Stojanoska Vesna
Published: January 2019

This mini-workshop focused on chromatic phenomena and duality as unifying themes in algebra, geometry, and topology. The overarching goal was to establish a fruitful exchange of ideas between experts from various areas, fostering the study of the local and global structure of the fundamental categories appearing in algebraic geometry, homotopy theory, and representation theory. The workshop started with introductory talks to bring researches from different backgrounds to the same page, and later highlighted recent progress in these areas with an emphasis on the interdisciplinary nature of the results and structures found. Moreover, new directions were explored in focused group work throughout the week, as well as in an evening discussion identifying promising long-term goals in the subject. Topics included support theories and their applications to the classification of localizing ideals in triangulated categories, equivariant and homotopical enhancements of important structural results, descent and Galois theory, numerous notions of duality, Picard and Brauer groups, as well as computational techniques.
Categorical Localization for the Coherent-Constructible Correspondence
Authors: Ike Yuichi , Kuwagaki Tatsuki
Published: January 2019

We prove a microlocal counterpart of categorical localization for Fukaya categories in the setting of the coherent-constructible correspondence.
On the Cluster Nature and Quantization of Geometric $R$-Matrices
Authors: Inoue Rei , Lam Thomas , Pylyavskyy Pavlo
Published: January 2019

We define cluster

R

-matrices as sequences of mutations in triangular grid quivers on a cylinder, and show that the affine geometric

R

-matrix of symmetric power representations for the quantum affine algebra

U_q^\prime({\hat {\mathfrak {sl}}_n})

can be obtained from our cluster

R

-matrix. A quantization of the affine geometric

R

-matrix is defined, compatible with the cluster structure. We construct invariants of the quantum affine geometric

R

-matrix as quantum loop symmetric functions.
On the Bass Stable Rank of Stein Algebras
Authors: Brudnyi Alexander
Published: January 2019

We compute the Bass stable rank of the ring

\Gamma(X,\mathcal O_X)

of global sections of the structure sheaf

\mathcal O_X

on a finite-dimensional Stein space

(X,\mathcal O_X)

and then apply this result to the problem of the factorization of invertible holomorphic matrices on

X

.
Identity and Fear – Burials in the Upper Palaeolithic
Authors: Petru Simona
Published: January 2019

Ritual burials probably appeared, when human beings became aware of their existence not only at a given moment, but also in the future. Death then became something to be afraid of, since it annihilated the identity of the deceased. Consequently a belief appeared that rituals at the time of death and proper handling of the corpse could preserve the identity of the dead, so that they only enter a different "world", that is afterlife, where life and personality continue in some way. Since finds of deformed and damaged skeletons in Upper Palaeolithic graves are relatively frequent, it may be possible to conclude, that people at that time were particularly cautious with the bodies of those who, for a variety of reasons, deviated from normal in their lifetime.
Ground stone industry from Pericei-Keller tag. A secondary production centre?
Authors: Dunca Mihai , Băcueț Crișan Sanda
Published: January 2019

This article analyses ground stone discoveries from the late neolithic site of Pericei located in north-west of Romania, in Șimleu Depression. Combined characteristics of chisels and adzes in working process are discussed along with their context, especially those connected to stone working: the layer, dwellings and pebble agglomerations. We conclude that Pericei was a production center for stone chisels, appeared to supply the demand that until then was satisfied by Suplac/Porț site that continued to produce ground stone tools for a longer period.
Zarys dziejów matematyki w siedemdziesięcioleciu Politechniki Krakowskiej
Authors: Koroński Jan
Published: January 2019

The subject of the paper is the history of Mathematics at the Krakow University of Technology since 1945 up to 2015. It presents profiles of the most famous mathematicians in the history of the Krakow University of Technology (M. Krzyżański, J. Bochenek, F. Barański, I. Łojczyk-Królikiewicz) and some information about their scientific achievements.
Uwagi do komentarza dr. Pawła E. Tomaszewskiego na temat badań życiorysu Jana Czochralskiego (replika)
Authors: Kokowski Michał
Published: January 2019

The author replies to the text entitled “Remarks to the comment by Prof. Michal Kokowski on the research of Jan Czochralski’s biography” by Dr. Paweł E. Tomaszewski (2015), highlighting the key contentious issues, including the need to rely systematically on historical sources and the criticism thereof.
International collaboration in the history of science of Central Europe
Authors: Štrbaňova Soňa
Published: January 2019

In the last ten years, approximately, we could witness an evolution in informal international collaboration focusing on shared and interconnected history of science in the Habsburg Monarchy and in Central Europe in general. This effort, which includes mainly historians of science from Austria, Czech Republic, Hungary and Poland, has already produced a number of important results and contributed to the thematization of some timeless topics of history of sciences such as, for instance, nationalization and internationalization of science. In the context of this cooperation, the seminar of Jan Surman, a historian of science of Polish descent, held at the Institute of Contemporary History of the Czech Academy of Sciences in Prague in May 2015, concentrated on the formation of national scientific terminologies. It also underlined the necessity and usefulness of international collaboration in achieving a deeper understanding of the “national” histories of science, which cannot be separated from the “international” history.
Relação entre gênero no conselho de administração e no comitê de auditoria com o audit delay
Authors: Lay Luis Antonio , Gonçalves Michele , Da Cunha Paulo Roberto
Published: January 2019

O estudo verificou a relação entre o gênero na composição do conselho de administração e do comitê de auditoria com o audit delay. A amostra da pesquisa compreende 75 empresas pertencentes ao índice IBrX 100. As variáveis pesquisadas foram a presença da mulher no conselho de administração e no comitê de auditoria, tamanho do comitê de auditoria, independência do conselho de administração, expertise, tamanho da empresa, endividamento, tamanho da firma de auditoria e honorários de auditoria. A coleta de dados ocorreu no Formulário de Referência e na base de dados Economática®. Para análise dos dados utilizou-se estatística descritiva e regressão linear múltipla por meio do software SPSS®. Verificou-se que a presença da mulher é maior no conselho de administração que no comitê de auditoria, havendo uma pequena parcela de membros com expertise. Os resultados evidenciaram que a presença da mulher no comitê de auditoria possui associação negativa e significante com o audit delay, ou seja, a presença da mulher neste órgão de governança corporativa contribui para a redução do prazo de divulgação do relatório do auditor. Ainda, o tamanho da empresa e a independência do conselho de administração também mostraram-se significantes no modelo final em relação ao audit delay. A presença da mulher no conselho de administração não apresentou significância com o audit delay.
Analysis of the relative technical efficiency of Brazilian electricity distribution companies: a DEA approach
Authors: Rempel Cristiano , Diehl Carlos Alberto , Martins Vanessa De Quadros , Hansen Peter Bent
Published: January 2019

Este artigo analisa a eficiência técnica relativa das empresas brasileiras distribuidoras de energia elétrica. A busca por eficiência tem sido constante em muitos setores e a indústria representa uma importante fonte de desenvolvimento econômico para o país. As distribuidoras de energia elétrica passaram por maiores transformações devido a transferência de controle acionário para empresas privadas. A pesquisa possui característica descritiva e abordagem quantitativa, utilizando como técnica de pesquisa a Análise Envoltória de Dados (DEA) realizada com base em dados de 2012. Identificou-se que apenas 1 em 17 distribuidoras de energia elétrica foram consideradas tecnicamente eficientes. As empresas COSERN e a RGE são os melhores benchmarks para as empresas ineficientes e são detentoras de diferentes prêmios de qualidade e gestão do setor. A variável que mais contribuiu para os escores de eficiência das empresas foi a variável Potência Instalada e as variáveis que necessitam de melhorias são o Desempenho Global de Continuidade e Tempo Médio de Atendimento.
Total anomalous pulmonary vein drainage in a 60-year-old woman diagnosed in an ECG-gated multidetector computed tomography – a case report and review of literature
Authors: Czekajska-Chehab Elżbieta , Tomaszewski Andrzej , Adamczyk Piotr , Zakościelna Magdalena , Wojtkowska Agnieszka , Siek Elżbieta , Staśkiewicz Grzegorz , Drop Andrzej
Published: January 2019

Purpose

Total anomalous pulmonary vein drainage (TAPVD) is a congenital cardiac defect in which there is no connection between pulmonary veins and the left atrium. Pulmonary veins form a confluence independent of the left atrium and drain to a systemic vein. TAPVD types are: supracardiac, cardiac, infracardiac, and mixed. TAPVD accounts for approximately 1.5-2.2% of all congenital heart diseases. This anomaly is usually diagnosed in the neonatal period, and it coexists with atrial septal defect. Adult cases of TAPVD are rarely reported.

Case report

We report a rare case of a 60-year-old woman with incidentally found, uncorrected TAPVD in ECG-gated multidetector computed tomography. In previous echocardiographic examinations partial anomalous pulmonary venous return and atrial septal defect were diagnosed.

Conclusions

ECG-gated multidetector computed tomography is a valuable diagnostic method for adults with congenital heart disease. It enables evaluation of coronary arteries and simultaneously provides detailed anatomy of great vessels.
Comparison between squamous cell carcinoma and inflammatory diseases of the oral and maxillofacial region using gallium-67 scintigraphy with computed tomography and magnetic resonance imaging
Authors: Ogura Ichiro , Oda Takaaki , Sue Mikiko , Sasaki Yoshihiko , Hayama Kazuhide
Published: January 2019

Purpose

This study aimed to compare squamous cell carcinoma (SCC) with inflammatory diseases of the oral and maxillofacial region using gallium 67 (67Ga) scintigraphy with computed tomography (CT) and magnetic resonance imaging (MRI).

Material and methods

Seventy patients with SCC and 15 patients with inflammatory diseases of the oral and maxillofacial region underwent 67Ga scintigraphy with CT and MRI. A comparison between imaging features of 67Ga scintigraphy, CT, and MRI and lesions was performed with the Pearson’s chi-squared test.

Results

67Ga scintigraphy was positive for 25 of 39 patients with SCC positive on CT and/or MRI (64.1%) and for 13 of 15 patients with inflammatory diseases positive on CT and/or MRI (86.7%). The detection of inflammatory diseases with 67Ga scintigraphy was higher than that of SCC (p = 0.104).

Conclusions

This study compared SCC with inflammatory diseases of the oral and maxillofacial region using 67Ga scintigraphy with CT and MRI. 67Ga scintigraphy is an effective technique for detection of inflammatory diseases of the oral and maxillofacial region.
Percutaneous direct thrombin injection with hydrodissection to manage type II endoleak after endovascular abdominal aortic aneurysm repair
Authors: Żabicki Bartosz , Kubiak Kinga , Gabriel Marcin , Juszkat Robert
Published: January 2019

Type II endoleak is the most common complication after endovascular abdominal aortic aneurysm repair (EVAR). The management remains controversial. We present a case in which endoleak was successfully treated by direct percutaneous thrombin injection with hydrodissection. This method seems to be a safe and feasible alternative method for treatment of type II endoleak.
Atmospheric new particle formation in China
Authors: Chu Biwu , Kerminen Veli-Matti , Bianchi Federico , Yan Chao , Petäjä Tuukka , Kulmala Markku
Published: January 2019

Abstract. New particle formation (NPF) studies in China were summarized comprehensively
in this paper. NPF frequency, formation rate, and particle growth rate were
closely compared among the observations carried out at different types of
sites in different regions of China in different seasons, with the aim of
exploring the nucleation and particle growth mechanisms. The interactions
between air pollution and NPF are discussed, emphasizing the properties of
NPF under heavy pollution conditions. The current understanding of NPF cannot
fully explain the frequent occurrence of NPF at high aerosol loadings in
China, and possible reasons for this phenomenon are proposed. The effects of
NPF and some aspects of NPF research requiring further investigation are
also summarized in this paper.
Dynamic changes in optical and chemical properties of tar ball aerosols by atmospheric photochemical aging
Authors: Li Chunlin , He Quanfu , Schade Julian , Passig Johannes , Zimmermann Ralf , Meidan Daphne , Laskin Alexander , Rudich Yinon
Published: January 2019

Abstract. Following wood pyrolysis, tar ball aerosols were laboratory generated from
wood tar separated into polar and nonpolar phases. Chemical information of
fresh tar balls was obtained from a high-resolution time-of-flight aerosol
mass spectrometer (HR-ToF-AMS) and single-particle laser desorption/resonance
enhanced multiphoton ionization mass spectrometry (SP-LD-REMPI-MS). Their
continuous refractive index (RI) between 365 and 425 nm was retrieved using
a broadband cavity enhanced spectroscopy (BBCES). Dynamic changes in the
optical and chemical properties for the nonpolar tar ball aerosols in
NOx-dependent photochemical process were investigated in an
oxidation flow reactor (OFR). Distinct differences in the chemical
composition of the fresh polar and nonpolar tar aerosols were identified.
Nonpolar tar aerosols contain predominantly high-molecular weight
unsubstituted and alkyl-substituted polycylic aromatic hydrocarbons (PAHs),
while polar tar aerosols consist of a high number of oxidized aromatic
substances (e.g., methoxy-phenols, benzenediol) with higher O : C ratios
and carbon oxidation states. Fresh tar balls have light absorption
characteristics similar to atmospheric brown carbon (BrC) aerosol with higher
absorption efficiency towards the UV wavelengths. The average retrieved RI is
1.661+0.020i and 1.635+0.003i for the nonpolar and polar tar aerosols,
respectively, with an absorption Ångström exponent (AAE) between 5.7
and 7.8 in the detected wavelength range. The RI fits a volume mixing rule
for internally mixed nonpolar/polar tar balls. The RI of the tar ball
aerosols decreased with increasing wavelength under photochemical oxidation.
Photolysis by UV light (254 nm), without strong oxidants in the system,
slightly decreased the RI and increased the oxidation state of the tar balls.
Oxidation under varying OH exposure levels and in the absence of
NOx diminished the absorption (bleaching) and increased the
O : C ratio of the tar balls. The photobleaching via OH radical initiated
oxidation is mainly attributed to decomposition of chromophoric aromatics,
nitrogen-containing organics, and high-molecular weight components in the
aged particles. Photolysis of nitrous oxide (N2O) was used to
simulate NOx-dependent photochemical aging of tar balls in
the OFR. Under high-NOx conditions with similar OH exposure,
photochemical aging led to the formation of organic nitrates, and increased
both oxidation degree and light absorption for the aged tar ball aerosols.
These observations suggest that secondary organic nitrate formation
counteracts the bleaching by OH radical photooxidation to eventually regain
some absorption of the aged tar ball aerosols. The atmospheric implication
and climate effects from tar balls upon various oxidation processes are
briefly discussed.