bluuebunny/crossref_metadata_2025_split huggingface dataset:
Simultaneous aerosol mass spectrometry and chemical ionisation mass spectrometry measurements during a biomass burning event in the UK: insights into nitrate chemistry
Authors: Reyes-Villegas Ernesto , Priestley Michael , Ting Yu-Chieh , Haslett Sophie , Bannan Thomas , Le Breton Michael , Williams Paul I. , Bacak Asan , Flynn Michael J. , Coe Hugh , Percival Carl , Allan James D. 
Published: March 2018

Abstract. Over the past decade, there has been an increasing interest in short-term events that negatively affect air quality such as bonfires and fireworks. High aerosol and gas concentrations generated from public bonfires or fireworks were measured in order to understand the night-time chemical processes and their atmospheric implications. Nitrogen chemistry was observed during Bonfire Night with nitrogen containing compounds in both gas and aerosol phases and further N2O5 and ClNO2 concentrations, which depleted early next morning due to photolysis of NO3 radicals and ceasing production. Particulate organic oxides of nitrogen (PONs) concentrations of 2.8 µg m−3 were estimated using the m ∕ z 46 : 30 ratios from aerosol mass spectrometer (AMS) measurements, according to previously published methods. Multilinear engine 2 (ME-2) source apportionment was performed to determine organic aerosol (OA) concentrations from different sources after modifying the fragmentation table and it was possible to identify two PON factors representing primary (pPON_ME2) and secondary (sPON_ME2) contributions. A slight improvement in the agreement between the source apportionment of the AMS and a collocated AE-31 Aethalometer was observed after modifying the prescribed fragmentation in the AMS organic spectrum (the fragmentation table) to determine PON sources, which resulted in an r2 =  0.894 between biomass burning organic aerosol (BBOA) and babs_470wb compared to an r2 =  0.861 obtained without the modification. Correlations between OA sources and measurements made using time-of-flight chemical ionisation mass spectrometry with an iodide adduct ion were performed in order to determine possible gas tracers to be used in future ME-2 analyses to constrain solutions. During Bonfire Night, strong correlations (r2) were observed between BBOA and methacrylic acid (0.92), acrylic acid (0.90), nitrous acid (0.86), propionic acid, (0.85) and hydrogen cyanide (0.76). A series of oxygenated species and chlorine compounds showed good correlations with sPON_ME2 and the low volatility oxygenated organic aerosol (LVOOA) factor during Bonfire Night and an event with low pollutant concentrations. Further analysis of pPON_ME2 and sPON_ME2 was performed in order to determine whether these PON sources absorb light near the UV region using an Aethalometer. This hypothesis was tested by doing multilinear regressions between babs_470wb and BBOA, sPON_ME2 and pPON_ME2. Our results suggest that sPON_ME2 does not absorb light at 470 nm, while pPON_ME2 and LVOOA do absorb light at 470 nm. This may inform black carbon (BC) source apportionment studies from Aethalometer measurements, through investigation of the brown carbon contribution to babs_470wb.
Evaluation of ensemble precipitation forecasts generated through post-processing in a Canadian catchment
Authors: Jha Sanjeev K. , Shrestha Durga L. , Stadnyk Tricia A. , Coulibaly Paulin 
Published: March 2018

Abstract. Flooding in Canada is often caused by heavy rainfall during the snowmelt
period. Hydrologic forecast centers rely on precipitation forecasts obtained
from numerical weather prediction (NWP) models to enforce hydrological models
for streamflow forecasting. The uncertainties in raw quantitative
precipitation forecasts (QPFs) are enhanced by physiography and orography
effects over a diverse landscape, particularly in the western catchments of
Canada. A Bayesian post-processing approach called rainfall post-processing
(RPP), developed in Australia (Robertson et al., 2013; Shrestha et
al., 2015), has been applied to assess its forecast performance in a Canadian
catchment. Raw QPFs obtained from two sources, Global Ensemble Forecasting
System (GEFS) Reforecast 2 project, from the National Centers for Environmental
Prediction, and Global Deterministic Forecast System (GDPS), from Environment
and Climate Change Canada, are used in this study. The study period from
January 2013 to December 2015 covered a major flood event in Calgary,
Alberta, Canada. Post-processed results show that the RPP is able to remove
the bias and reduce the errors of both GEFS and GDPS forecasts. Ensembles
generated from the RPP reliably quantify the forecast uncertainty.
Larger foraminifera of the Devil's Den and Blue Hole sinkholes, Florida
Authors: Cotton Laura J. , Eder Wolfgang , Floyd James 
Published: March 2018

Abstract. Shallow-water carbonate deposits are well-known from the Eocene of the US Gulf Coast and Caribbean. These deposits frequently contain abundant larger benthic foraminifera (LBF). However, whilst integrated stratigraphic studies have helped to refine the timing of LBF overturning events within the Tethys and Indo-Pacific regions with respect to global bio- and chemo-stratigraphic records, little recent work has been carried out in the Americas. The American LBF assemblages are distinctly different from those of Europe and the Indo-Pacific. It is therefore essential that the American bio-province is included in studies of LBF evolution, biodiversity and climate events to understand these processes on a global scale. Here we present the LBF ranges from two previously unpublished sections spanning 35 and 29 m of the upper Eocene Ocala limestone, as the early stages of a larger project addressing the taxonomy and biostratigraphy of the LBF of Florida. The study indicates that the lower member of the Ocala limestone may be Bartonian rather than Priabonian in age, with implications for the biostratigraphy of the region. In addition, the study highlights the need for multiple sites to assess the LBF assemblages and fully constrain ranges across Florida and the US Gulf and suggests potential LBF events for future integrated stratigraphic study.
“Mr. M.”: An Unpublished Memoir about H. L. Mencken by James M. Cain
Authors: Roessel David , Maniaci Stephanie 
Published: March 2018

ABSTRACT
James M. Cain met H. L. Mencken when he was a young reporter at the Baltimore Sun and Mencken was the newspaper's most famous columnist. Over the course of the next three decades, Cain would be both professionally and personally connected to the Sage of Baltimore. “Mr. M.,” handwritten on seventy-seven pages of lined yellow notepaper, is Cain's longest account of his relationship with Mencken. While Cain offered Mencken biographers and researchers material both verbally and in writing, “Mr. M.” appears more candid and critical. This is not surprising, for the piece as it stands would have had to be edited and typed to be accessible to a third party. If “Mr. M.,” as it appears, is Cain late in life thinking to himself about the contradictions and complications of Mencken, it becomes one of the most important, and perhaps the most important, document that Cain wrote about the problem that was Mencken.
Henry James’s Middle Years in Letters
Authors: Rowe John Carlos 
Published: March 2018

ABSTRACT
These new volumes in The Complete Letters of Henry James cover the years 1878–80, when James was extraordinarily prolific, publishing seven major works, including The Portrait of a Lady (1881). James's literary output is explained in part by his development of an international theme that appealed to readers in both the United States and Europe. These letters help us understand how James worked to gain social and literary visibility in London, as well as developed marketing skills that would enable him to increase the value and circulation of his works on both sides of the Atlantic. Michael Anesko's superb introduction to both volumes places James's letters in these crucial years in the context of James's literary works and the broader social history in which they were produced.
APLICABILIDADE DA TECNOLOGIA VANT NA ATUALIZAÇÃO DE BASES DE DADOS CARTOGRÁFICOS
Authors: Cavali da Luz Cristhyano , Buffara Antunes Alzir Felippe , Ratton Philipe 
Published: March 2018

O desenvolvimento de plataformas e sensores para a aquisição de informação espacial, com vistas à elaboração de produtos cartográficos, fotointerpretação e atualização de bases cadastrais, teve um grande avanço a partir do século XXI, através de modernas etapas de processamento digital entre as fotografias aéreas adquiridas com câmeras digitais. Este trabalho teve como objetivo propor uma metodologia capaz de gerar ortofoto a partir de dados brutos oriundos de Veículo Aéreo Não Tripulado (VANT). Em outras palavras, buscou-se avaliar a aplicabilidade da tecnologia VANT, com vistas à atualização de mapas temáticos. A metodologia baseou-se na elaboração do plano de voo a ser seguido pelo VANT; a aquisição dos dados e das fotografias aéreas; o processamento das imagens, através de algoritmos computacionais de classificações de padrões e reconstrução tridimensional do terreno, através das operações de aerotriangulação, geração do Modelo Digital de Elevação e ortofoto. O recobrimento aerofotogramétrico foi realizado com altura de voo média de 300 metros. As fotografias aéreas foram automaticamente obtidas com uma câmera Sony NEX-3 16Mp, com resolução espacial no terreno de 9 cm. A ortofoto gerada possibilitou a fotointerpretação da rede de drenagem local, da caracterização geomorfológica e geológica, bem como da definição das melhores alternativas para a definição de uma diretriz rodoviária. Os resultado são promissores e mostram que os VANT’s de baixo custo podem ser utilizados em mapeamentos temáticos.
Food Crises and Food Safety Incidents in European Union, United States, and Maghreb Area: Current Risk Communication Strategies and New Approaches
Authors: Chammem Nadia , Issaoui Manel , De Almeida Ana Isabel Dâmaso , Delgado Amélia Martins 
Published: March 2018

Abstract
Globalization has created a dynamic market, which has dramatically intensified interchanges of goods and information as well as the flow of people among nations. This international phenomenon offers the consumer a choice between a wide variety of foods from diverse locations. However, there are challenges to improving food security and safety on a global scale; the major question is how food safety can be guaranteed while increasing the complexity of food supply chains. A food produced in a certain location usually contains ingredients, additives, and preservatives from different and distant origins. Although countries take several food control measures, their institutional and regulatory frameworks diverge widely, as do the definitions of food crisis, food incidents, and risk management approaches. The present review discusses some past food safety issues and lessons learned. Convergences and differences in the regulatory framework of food control agencies in different regions of the world are herein revealed. Emerging risks are also discussed, particularly the spread of antibiotic resistance in the food chain and the environment, as well as the rise of new antibiotic-resistant pathogenic strains with broader tolerance to environmental factors.
Identification and Assessment of the Behavior of Methicillin-Resistant Staphylococci in Cheese
Authors: Steinka Izabela 
Published: March 2018

Abstract
This study was carried out with the aim of identifying and assessing methicillin-resistant Staphylococcus aureus (MRSA) during lactic acid cheese storage. The study involved 30 assortments of lactic acid cheese and 21 cheeses with S. aureus TWP11616 (MRSA). Results showed low MRSA contamination levels in lactic acid cheese. The majority of cow and goat lactic acid cheese samples (more than 72%) were characterized by a low level of MRSA (≤10 CFU/g). With regard to cow and sheep lactic acid cheese, methicillin-resistant Staphylococcus spp. contamination levels of ≥100 CFU/g were found in 88 and 100% of samples, respectively. The microbial dynamics of MRSA changes in lactic acid cheese suggest a significant reduction in contamination levels after 4 days of product storage, and this decrease is likely not dependent on the type of packaging method.
Biennial Review of Planar Chromatography: 2015–2017
Authors: Sherma Joseph 
Published: March 2018

Abstract
The most important advances in planar chromatography published between November 1, 2015, and November 1, 2017, are reviewed in this paper. Included are an introduction to the current status of the field; student experiments and reviews; apparatus and techniques for sample preparation and TLC separations; detection and identification of separated zones; quantitative analysis; preparative layer chromatography; and thin-layer radiochromatography. Selected applications are given in the various sections of the review.
Système, rétroactions et recherche. Un triptyque à considérer?
Authors: Bourhis Marion 
Published: March 2018

La restitution de récits d’enquête reste vécue comme une forme de « mise en danger » vis-à-vis de la crédibilité des recherches menées empruntant principalement aux méthodes de types qualitatives, sans qu’il existe de réelle cumulativité relative aux enjeux et questionnements issus de ces restitutions. Une telle situation laisse transparaître un besoin en termes d’outillage analytique auquel cet article se propose d’apporter un début de proposition. En effet, à partir du postulat de départ que tout chercheur fait partie de son cadre de travail, qu’il influence mais qui l’influence également en retour, l’article propose de considérer tout déroulé de recherche sous l’angle de la systémique, et donc d’envisager les glissements réalisés comme étant des transformations issues de boucles de rétroactions positives. En ce sens, cet article souhaite, partant d’une expérience effective de recherche, tendre vers une possible généralisation analytique.
PIM2 interacts with tristetraprolin and promotes breast cancer tumorigenesis
Authors: Ren Chune , Yang Tingting , Qiao Pengyun , Wang Li , Han Xue , Lv Shijun , Sun Yonghong , Liu Zhijun , Du Yu , Yu Zhenhai 
Published: March 2018

Tristetraprolin (TTP) is an AU‐rich element‐binding protein that regulates mRNA stability and plays important roles in cancer. The mechanisms by which TTP is regulated in breast cancer are poorly understood. Using multiple biochemical approaches, we found that proviral insertion in murine lymphomas 2 (PIM2) is a novel binding partner of TTP. Interestingly, PIM2 decreased TTP protein levels independent of its kinase activity. PIM2 instead targeted TTP protein for degradation via the ubiquitin‐proteasome pathway. Furthermore, immunohistochemical staining showed that PIM2 and TTP protein levels were negatively correlated in human breast cancer samples. Indeed, PIM2 overexpression de‐repressed TTP‐mediated inhibition of breast cancer cell proliferation and migration in vitro and promoted breast tumor xenograft growth in vivo. These findings demonstrate an important role for the PIM2‐TTP complex in breast cancer tumorigenesis, suggesting that PIM2 may represent a potential therapeutic target for breast cancer treatment.
Reconfigurable Diodes Based on Vertical WSe2 Transistors with van der Waals Bonded Contacts
Authors: Avsar Ahmet , Marinov Kolyo , Marin Enrique Gonzalez , Iannaccone Giuseppe , Watanabe Kenji , Taniguchi Takashi , Fiori Gianluca , Kis Andras 
Published: March 2018

AbstractNew device concepts can increase the functionality of scaled electronic devices, with reconfigurable diodes allowing the design of more compact logic gates being one of the examples. In recent years, there has been significant interest in creating reconfigurable diodes based on ultrathin transition metal dichalcogenide crystals due to their unique combination of gate‐tunable charge carriers, high mobility, and sizeable band gap. Thanks to their large surface areas, these devices are constructed under planar geometry and the device characteristics are controlled by electrostatic gating through rather complex two independent local gates or ionic‐liquid gating. In this work, similar reconfigurable diode action is demonstrated in a WSe2 transistor by only utilizing van der Waals bonded graphene and Co/h‐BN contacts. Toward this, first the charge injection efficiencies into WSe2 by graphene and Co/h‐BN contacts are characterized. While Co/h‐BN contact results in nearly Schottky‐barrier‐free charge injection, graphene/WSe2 interface has an average barrier height of ≈80 meV. By taking the advantage of the electrostatic transparency of graphene and the different work‐function values of graphene and Co/h‐BN, vertical devices are constructed where different gate‐tunable diode actions are demonstrated. This architecture reveals the opportunities for exploring new device concepts.
Single Crystals Based on Hydrogen‐Bonding Mediated Cation–Anion Assembly with Extremely Large Optical Nonlinearity and Their Application for Intense THz Wave Generation
Authors: Lee Seung‐Chul , Kang Bong Joo , Lee Ji‐Ah , Lee Seung‐Heon , Jazbinšek Mojca , Yoon Woojin , Yun Hoseop , Rotermund Fabian , Kwon O‐Pil 
Published: March 2018

AbstractNew molecular salt crystals based on linear‐shaped polymer‐like cation–anion assembly exhibiting extremely large nonlinear optical response and high THz generation efficiency are reported. Two hydroxy benzothialzolium PMB (2‐(4‐(4‐(hydroxymethyl)piperidin‐1‐yl)styryl)‐3‐methylbenzo[d]thiazol‐3‐ium) crystals with different benzenesulfonate counter anions provide isomorphic crystal structure with acentric monoclinic Cc space group symmetry. In contrast to previously reported benchmark nonlinear optical salt crystals with a parallel‐type cation–anion assembly, newly developed PMB‐based crystals exhibit a series‐type cation–anion assembly mediated by strong bidentate‐like hydrogen‐bonds. Such series‐type cation–anion assembly results in perfect alignment of highly nonlinear PMB cations in the crystalline state, leading to extremely large diagonal component of the second‐order nonlinear optical coefficient exceeding that of the state‐of‐the‐art nonlinear optical crystals. In THz wave generation experiments based on optical rectification, a 0.33 mm thick PMB crystal generates intense THz pulses with peak‐to‐peak THz electric field of 430 kV cm−1 and extremely broad flat spectrum with upper cut‐off frequency of above 8.0 THz. In addition, compared to inorganic standard 1.0 mm thick ZnTe crystals, the PMB crystal delivers a 24 times higher THz electric field and about 3 times broader bandwidth. Therefore, hydroxy benzothialzolium PMB crystals are highly desired novel materials for various nonlinear optical applications including THz photonics.
Eco‐nanocomposites with epoxidized natural rubber for improved mechanical properties essential to unmanned aerial vehicles propeller applications
Authors: Pithaksareetham Nattapon , Hongkarnjanakul Natthawat , Suchat Sunisa 
Published: March 2018

AbstractThe epoxidized natural rubber (ENR) was prepared via in situ epoxidation reaction to contain 50 mol% epoxide groups (ENR 50). The fraction of ENR 50 in the blends was 0, 3, 5, 7, and 10 parts per hundred (phr) relative to the epoxy resin. Also, the silica nanoparticle content of epoxy resin was tested for 0, 1, 2, 3, 4, and 5 phr. The results show that the impact strength of epoxy resin can be improved by blending in ENR 50 mixed with nanosilica, relative to the baseline epoxy and epoxy resin mixed with epoxide. The optimal ENR 50 content of the composite was 3 phr. Also, the impact and tensile strength of the nanocomposite containing 3 phr nanosilica were improved. In addition, the tear strength of the nanocomposite slightly decreased with the addition of nanofiller. The mechanical properties were assessed relative to morphology from SEM micrographs. In epoxy resin blends with ENR 50, nanosilica can improve the impact strength required in unmanned aerial vehicles propeller applications.
Job strain associated with increases in ambulatory blood and pulse pressure during and after work hours among female hotel room cleaners
Authors: Feaster Matt , Krause Niklas 
Published: March 2018

BackgroundPreviously documented elevated hypertension rates among Las Vegas hotel room cleaners are hypothesized to be associated with job strain.MethodsJob strain was assessed by questionnaire. Ambulatory blood pressure (ABP) was recorded among 419 female cleaners from five hotels during 18 waking hours. Multiple linear regression models assessed associations of job strain with ABP and pulse pressure for 18‐h, work hours, and after work hours.ResultsHigher job strain was associated with increased 18‐h systolic ABP, after work hours systolic ABP, and ambulatory pulse pressure. Dependents at home but not social support at work attenuated effects. Among hypertensive workers, job strain effects were partially buffered by anti‐hypertensive medication.ConclusionsHigh job strain is positively associated with blood pressure among female hotel workers suggesting potential for primary prevention at work. Work organizational changes, stress management, and active ABP surveillance and hypertension management should be considered for integrated intervention programs.
The Convergence of Markov Chain Monte Carlo Methods: From the Metropolis Method to Hamiltonian Monte Carlo
Authors: Betancourt Michael 
Published: March 2018

AbstractFrom its inception in the 1950s to the modern frontiers of applied statistics, Markov chain Monte Carlo has been one of the most ubiquitous and successful methods in statistical computing. The development of the method in that time has been fueled by not only increasingly difficult problems but also novel techniques adopted from physics. Here, the history of Markov chain Monte Carlo is reviewed from its inception with the Metropolis method to the contemporary state‐of‐the‐art in Hamiltonian Monte Carlo, focusing on the evolving interplay between the statistical and physical perspectives of the method.
Metal‐Ion‐Mediated Supramolecular Chirality of l‐Phenylalanine Based Hydrogels
Authors: Wang Fang , Feng Chuan‐Liang 
Published: March 2018

AbstractFor chiral hydrogels and related applications, one of the critical issues is how to control the chirality of supramolecular systems in an efficient way, including easy operation, efficient transfer of chirality, and so on. Herein, supramolecular chirality of l‐phenylalanine based hydrogels can be effectively controlled by using a broad range of metal ions. The degree of twisting (twist pitch) and the diameter of the chiral nanostructures can also be efficiently regulated. These are ascribed to the synergic effect of hydrogen bonding and metal ion coordination. This study may develop a method to design a new class of electronically, optically, and biologically active materials.