bluuebunny/crossref_metadata_2025_split huggingface dataset:
Polyphasic taxonomic analysis of Parasedimentitalea marina gen. nov., sp. nov., a psychrotolerant bacterium isolated from deep sea water of the New Britain Trench
Authors: Ding Wanzhen , Liu Ping , Xu Yunping , Fang Jiasong , Cao Junwei 
Published: January 2020

ABSTRACT
A novel Rhodobacteraceae bacterium, strain W43T, was isolated from a deep-sea water sample from the New Britain Trench. Strain W43T exhibited the highest 16S rRNA gene sequence similarity of 96.5% to Sedimentitalea nanhaiensis DSM 24252T, Phaeobacter gallaeciensis DSM 26640T, Phaeobacter inhibens DSM 16374T, and Phaeobacter porticola P97T. Phylogenetic analysis of the 16S rRNA gene and phylogenomic analysis of the genome showed that strain W43T formed an independent monophyletic branch within the family Rhodobacteraceae. Strain W43T was Gram-stain-negative, rod-shaped, and grew optimally at 16–20°C, pH 6.5–7.0 and 2% (w/v) NaCl. The principal fatty acids were C18:1ω7c/C18:1ω6c, major respiratory quinone was ubiquinone-10 and predominant polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. The 5 080 916 bp long genome, comprising a circular chromosome and four plasmids, exhibits a G + C content of 55.9 mol%. The combined phenotypic, chemotaxonomic and molecular data show that strain W43T represents a novel species of a novel genus, for which the name Parasedimentitalea marina gen. nov. sp. nov. is proposed (type strain W43T = MCCC 1K03532T = KCTC 62635T).
CLEAN beamforming for the enhanced detection of multiple infrasonic sources
Authors: den Ouden Olivier F C , Assink Jelle D , Smets Pieter S M , Shani-Kadmiel Shahar , Averbuch Gil , Evers Läslo G 
Published: January 2020

SUMMARY
The detection and characterization of signals of interest in the presence of (in)coherent ambient noise is central to the analysis of infrasound array data. Microbaroms have an extended source region and a dynamical character. From the perspective of an infrasound array, these coherent noise sources appear as interfering signals that conventional beamform methods may not correctly resolve. This limits the ability of an infrasound array to dissect the incoming wavefield into individual components. In this paper, this problem will be addressed by proposing a high-resolution beamform technique in combination with the CLEAN algorithm. CLEAN iteratively selects the maximum of the f/k spectrum (i.e. following the Bartlett or the Capon method) and removes a percentage of the corresponding signal from the cross-spectral density matrix. In this procedure, the array response is deconvolved from the f/k spectral density function. The spectral peaks are retained in a ‘clean’ spectrum. A data-driven stopping criterion for CLEAN is proposed, which relies on the framework of Fisher statistics. This allows the construction of an automated algorithm that continuously extracts coherent energy until the point is reached that only incoherent noise is left in the data. CLEAN is tested on a synthetic data set and is applied to data from multiple International Monitoring System infrasound arrays. The results show that the proposed method allows for the identification of multiple microbarom source regions in the Northern Atlantic that would have remained unidentified if conventional methods had been applied.
Present-day interseismic deformation characteristics of the Beng Co-Dongqiao conjugate fault system in central Tibet: implications from InSAR observations
Authors: Yongsheng Li , Yunfeng Tian , Chen Yu , Zhe Su , Wenliang Jiang , Zhenhong Li , Jingfa Zhang , Yi Luo , Bingquan Li 
Published: January 2020

SUMMARYNumerous V-shaped conjugate strike-slip fault systems distributed between the Lhasa block and the Qiangtang block serve as some of the main structures accommodating the eastward motion of the Tibetan Plateau. The Beng Co-Dongqiao conjugate fault system is a representative section, and determining its tectonic environment is a fundamental issue for understanding the dynamic mechanism of the V-shaped conjugate strike-slip fault systems throughout central Tibet. In this paper, we investigate the deformation rates of the Beng Co-Dongqiao conjugate faults using 3 yr of SAR data from both ascending and descending tracks of Sentinel-1 satellites. Only interferograms with a long temporal baseline were used to increase the proportion of the deformation signals. The external atmospheric delay product and the InSAR stacking strategy were employed to reduce various errors in the large-spatial-coverage Sentinel-1 data. The InSAR results revealed that the fault-parallel deformation velocities along the eastern and western segments of the Beng Co fault are 5 ± 1 mm/yr and 2.5 ± 1 mm/yr, respectively. The second invariant of the horizontal strain rates shows that the accumulated strain is centered on the eastern segment of the Beng Co Fault and Gulu rift. The velocity and strain rate fields show that the Anduo-Peng Co faults may be paired with the Beng Co fault to form a new conjugate system and the tectonic transformation between the Beng Co fault and Gulu rift. These results can better explain the tectonic deformation environment of the Beng Co-Dongqiao conjugate fault system and provide insights on the crustal dynamics throughout the entire plateau interior.
Early Surgery Versus Biologic Therapy in Limited Nonstricturing Ileocecal Crohn’s Disease—A Decision-making Analysis
Authors: Broide Efrat , Eindor-Abarbanel Adi , Naftali Timna , Shirin Haim , Shalem Tzippora , Richter Vered , Matalon Shay , Leshno Moshe 
Published: January 2020

Abstract

Background
Surgery is the preferred option for patients with symptomatic localized fibrostenotic ileocecal Crohn’s disease (CD) but not for those with predominantly active inflammation without obstruction. The benefit of early surgery in patients with a limited nonstricturing ileocecal CD over biologic treatment is still a debate.

Objective
Our objective is to formulate a decision analysis model based on recently published data to explore whether early surgery in patients with limited nonstricturing CD is preferred over biologic treatment.

Methods
We constructed a Markov model comparing 2 strategies of treatment: (1) early surgery vs (2) biologic treatment. To estimate the quality-adjusted life years (QALYs) and the costs in each strategy, we simulated 10,000 virtual patients with the Markov model using a Monte Carlo simulation 100 times. Sensitivity analyses were performed to evaluate the robustness of the model and address uncertainties in the estimation of model parameters.

Results
The costs were $29,457 ± $407 and $50,382 ± $525 (mean ± SD) for early surgery strategy and biologic treatment strategy, respectively. The QALY was 6.24 ± 0.01 and 5.81 ± 0.01 for early surgery strategy and biologic treatment strategy, respectively.

Conclusion
The strategy of early surgery dominates (higher QALY value [efficacy] and less cost) compared with the strategy of biologic treatment in patients with limited ileocecal CD.
Physician champions’ perspectives and practices on electronic health records implementation: challenges and strategies
Authors: Gui Xinning , Chen Yunan , Zhou Xiaomu , Reynolds Tera L , Zheng Kai , Hanauer David A 
Published: January 2020

AbstractObjectivePhysician champions are “boots on the ground” physician leaders who facilitate the implementation of, and transition to, new health information technology (HIT) systems within an organization. They are commonly cited as key personnel in HIT implementations, yet little research has focused on their practices and perspectives.Materials and MethodsWe addressed this research gap through a qualitative study of physician champions that aimed to capture their challenges and strategies during a large-scale HIT implementation. Email interviews were conducted with 45 physician champions from diverse clinical areas 5 months after a new electronic health record (EHR) system went live in a large academic medical center. We adopted a grounded theory approach to analyze the data.ResultsOur physician champion participants reported multiple challenges, including insufficient training, limited at-the-elbow support, unreliable communication with leadership and the EHR vendor, as well as flawed system design. To overcome these challenges, physician champions developed their own personalized training programs in a simulated context or in the live environment, sought and obtained more at-the-elbow support both internally and externally, and adapted their departmental sociotechnical context to make the system work better.Discussion and ConclusionsThis study identified the challenges physician champions faced and the strategies they developed to overcome these challenges. Our findings suggest factors that are crucial to the successful involvement of physician champions in HIT implementations, including the availability of instrumental (eg, reward for efforts), emotional (eg, mechanisms for expressing frustrations), and peer support; ongoing engagement with the champions; and appropriate training and customization planning.
Advancing the FDA/Office of Regulatory Affairs Mycotoxin Program: New Analytical Method Approaches to Addressing Needs and Challenges
Authors: Cai Yanxuan (Tina) , McLaughlin Michael , Zhang Kai 
Published: January 2020

Abstract
The U.S. Food and Drug Administration (FDA), Office of Regulatory Affairs (ORA) oversees FDA field laboratories, monitoring the occurrence and levels of toxic mycotoxins in domestic and imported human and animal food products that have the potential to impact human and animal health when consumed. The mycotoxins being routinely monitored in human and animal foods and feeds by the Agency include aflatoxins (B1, B2, G1, G2, and M1), fumonisins (FB1, FB2, and FB3), deoxynivalenol, ochratoxin A, patulin, and zearalenone. There has been an ongoing expansion of the Sample Collection Operation Planning Effort (SCOPE) for the mycotoxin program to monitor more mycotoxins in a wider variety of food and feed matrices. To meet this pressing need, we are in the process of modernizing and harmonizing the FDA/ORA mycotoxin program in the field laboratories using approaches such as adopting new analytical technologies/methods to further advance the service. This short perspective gives an overview of the FDA mycotoxin program in the field laboratories and the current program status, discusses the need to advance the program, strategies for modernization and harmonization by implementing liquid chromatography-mass spectrometry technologies for multi-mycotoxin analysis, benefits of doing this, and challenges in taking this new approach. Perspectives on finding solutions to tackle challenges and addressing emerging issues are also discussed.
Phenols, Flavors, and the Mediterranean Diet
Authors: Issaoui Manel , Delgado Amélia Martins , Caruso Giorgia , Micali Maria , Barbera Marcella , Atrous Hager , Ouslati Amira , Chammem Nadia 
Published: January 2020

Abstract
Phenols or phenolics are a class of compounds that have one or more hydroxyl groups attached to a 6-carbon aromatic ring, they occur as plant secondary metabolites, having in common the antioxidant activity. Their average daily intake varies widely around the world. Many researchers consider coffee, tea, wine, cocoa products, fruits and vegetables as the main sources of polyphenols in different diets. However, spices and culinary herbs have been referred to as the foods richest in polyphenols. Despite spices and culinary herbs are used in small amounts as seasonings, their contribution to the dietary supply of phytonutrients should not be disregarded. A diet rich in a variety of polyphenols (and other phytonutrients) has potential health benefits, namely in the prevention of chronic diseases and cancer. In addition, flavor and color are the most important factors for the selection of food by consumers. A multitude of endogenous food compounds, including phenolics, are involved in food flavor. The presence of phenolic compounds in the food matrix has been mainly associated with the perception of bitter taste and tactile sensation of astringency. However, these compounds can also impact the color and aroma notes of fruits and vegetables. Thus, understanding the sensory impact of these substances and relationships with consumers’ approaches towards phenolic-rich fruits and vegetables may help find strategies to increase the consumption of such foods. A well-known example of a tasty, healthy and sustainable dietary model is the Mediterranean Diet. In this study, we summarize the dietary intake of some polyphenols from different dietary patterns around the world and the contribution of natural phenolic compounds to the flavor of food and beverages, in particularly those associated to the Mediterranean Diet.
Host Range and Effects of Plant Species on Preference and Fitness of Tuta absoluta (Lepidoptera: Gelechiidae)
Authors: Idriss Gamal E A , du Plessis Hannalene , Khamis Fathiya M , Ekesi Sunday , Tanga Chrysantus M , Mohamed Samira A 
Published: January 2020

Abstract
Tuta absoluta (Meyrick) is one of the most devastating pests of tomato in both open field and greenhouse production settings that significantly reduce yield and quality of the fruit. Being a new invasive pest, information on the pest bio-ecology, including host-rage and effects of plant species on its various fitness traits are virtually lacking. This study involved a field survey to establish the realized host range and laboratory experiments to evaluate the preference for, and fitness effects of T. absoluta on different plant species. In the field, T. absoluta was recovered from only four solanaceous plant species: tomato (Solanum lycopersicum L.), eggplant (S. melongena L.), black nightshade (S. nigrum L.), and gubbain (S. dubium Fr.). In choice and no-choice tests, tomato was the most preferred host of T. absoluta having the highest number of eggs deposited, followed by black nightshade, French bean Phaseolus vulgaris L., and chilli pepper Capsicum frutescens. Larvae developed quickest on tomato followed by black nightshade and French bean. The percentage survival to adulthood was significantly higher on tomato, compared to survival on black nightshade and French bean. Rearing of T. absoluta on tomato or black nightshade had no significant effect on pupal mass and length as well as adult size for both sexes. Fecundity and longevity, as well as oviposition preference of T. absoluta, were not affected by rearing on different plants. These findings confirm the oligophagous nature of the pest with high preference to tomato.
Trade and Frictional Unemployment in the Global Economy
Authors: Carrère Céline , Grujovic Anja , Robert-Nicoud Frédéric 
Published: January 2020

Abstract
We develop a multicountry, multisector trade model featuring risk-averse workers, labor market frictions, unemployment benefits, and equilibrium unemployment. Trade opening leads to a reduction in unemployment when it simultaneously raises welfare and reallocates labor toward sectors with lower-than-average labor market frictions. We then estimate and calibrate the model using employment data from 31 OECD countries and worldwide trade data. Finally, we quantify the potential unemployment, real wage, and welfare effects of repealing NAFTA and raising bilateral tariffs between the United States and Mexico to 20%. This policy would increase unemployment by 2.4% in the United States and 48% in Mexico.
Data Privacy and Displacement: A Cultural Approach
Authors: Witteborn Saskia 
Published: January 2020

Abstract
Recent research has pointed to the increasing impact of digitally derived data on forced migration processes, including legal mechanisms for accessing social media profiles of asylum seekers. These developments raise the issue of data privacy, specifically how asylum seekers understand data privacy and protect their data. This article pays particular attention to cultural variants of data privacy. Culture, here, refers to a communication culture linked to displacement, with safety as a key code and variant of data privacy. For the asylum seekers and refugees from South(east) Asia, the Middle East and African nations, safety was a concern in daily digital practice. Safety was a relational way of being, exercised through selective contacts and playful presentations of the self. Those presentations were deeply embedded in the logics of social media and stood in contrast to narratives of persecution, potentially posing problems for asylum claim determination in the future. Based on the lack of awareness of asylum seekers about data privacy and safety, a data safety workshop was designed, available on GitHub.
Drying times: plant traits to improve crop water use efficiency and yield
Authors: Condon Anthony G 
Published: January 2020

AbstractCrop water use efficiency (WUE) has come into sharp focus as population growth and climate change place increasing strain on the water used in cropping. Rainfed crops are being challenged by an upward trend in evaporative demand as average temperatures rise and, in many regions, there is an increased irregularity and a downward trend in rainfall. In addition, irrigated cropping faces declining water availability and increased competition from other users. Crop WUE would be improved by, first, ensuring that as much water as possible is actually transpired by the crop rather than being wasted. Deeper roots and greater early crop vigour are two traits that should help achieve this. Crop WUE would also be improved by achieving greater biomass per unit water transpired. A host of traits has been proposed to address this outcome. Restricting crop transpiration through lower stomatal conductance is assessed as having limited utility compared with traits that improve carbon gain, such as enhancements to photosynthetic biochemistry and responsiveness, or greater mesophyll conductance. Ultimately, the most useful outcomes for improved crop WUE will probably be achieved by combining traits to achieve synergistic benefit. The potential utility of trait combinations is supported by the results of crop simulation modelling.
Exploring the diversity of Type 1 active galactic nuclei identified in SDSS-IV/SPIDERS
Authors: Wolf Julien , Salvato Mara , Coffey Damien , Merloni Andrea , Buchner Johannes , Arcodia Riccardo , Baron Dalya , Carrera Francisco J , Comparat Johan , Schneider Donald P , Nandra Kirpal 
Published: January 2020

ABSTRACTWe present a statistical analysis of the optical properties of an X-ray-selected Type 1 active galactic nucleus (AGN) sample, using high signal-to-noise ratio (S/N&gt;20) spectra of the counterparts of the ROSAT/2RXS sources in the footprint of the SDSS-IV/SPIDERS (Spectroscopic IDentification of eROSITA Sources) programme. The final sample contains 2100 sources. It significantly extends the redshift and luminosity ranges (z ∼ 0.01–0.80 and $L_{\rm 0.1\!-\!2.4 \, keV} \sim \rm 2.0 \times 10^{41}\!-\!1.0 \times 10^{46} \, \, erg \, s^{-1}$) used so far in this kind of analysis. By means of a principal component analysis, we derive eigenvector (EV) 1 and 2 in an eleven-dimensional optical and X-ray parameter space, which are consistent with previous results. The validity of the correlations of the Eddington ratio L/LEdd with EV1 and the black hole mass with EV2 is strongly confirmed. These results imply that L/LEdd and black hole mass are related to the diversity of the optical properties of Type 1 AGNs. Investigating the relation of the width and asymmetry of H β and the relative strength of the iron emission $r_{\rm Fe\, \small{II}}$, we show that our analysis supports the presence of a distinct kinematic region: the very broad line region. Furthermore, comparing sources with a red-asymmetric broad H β emission line to sources for which it is blue asymmetric, we find an intriguing difference in the correlation of the $\rm Fe\, \small{II}$ and the continuum emission strengths. We show that this contrasting behaviour is consistent with a flattened, stratified model of the broad-line region, in which the $\rm Fe\, \small{II}$-emitting region is shielded from the central source.
Spiral instabilities in N-body simulations – II. Emergence from noise
Authors: Sellwood J A 
Published: January 2020

ABSTRACT
An earlier paper presented the potentially significant discovery that disturbances in simplified simulations of a stellar disc model that was predicted to be stable in linear theory grew to large amplitude over a long period of time. The ultimate appearance of true instabilities was attributed to non-linear scattering by a succession of collective waves excited by shot noise from the finite number of particles. The paper concluded that no finite number of particles, however large, could mimic a smooth disc. As this surprising finding has been challenged as an artefact of the numerical scheme employed, we here present a new calculation of the same model using a different grid geometry that confirms the original behaviour.
Using Case-Based Learning to Teach Information Literacy and Critical Thinking Skills in Undergraduate Music Therapy Education: A Cohort Study
Authors: Masko Meganne K , Thormodson Kelly , Borysewicz Kristen 
Published: January 2020

Abstract
Higher education traditionally focuses on didactic, or passive, teaching and learning techniques as these are efficient ways of conveying information to the students. However, passive learning places the responsibility for students’ learning on the instructor rather than the students themselves. Constructive learning techniques, such as case-based learning (CBL), give students opportunities to apply previous knowledge while constructing their own deep learning. The purpose of this article is to describe both the implementation and evaluation of a CBL unit in a junior-level undergraduate music therapy theories and methods course. The cohort study utilized student reflection papers, faculty observations, class materials, and a student survey to evaluate the impact of a behavioral health-focused CBL unit on information literacy, critical thinking skills, and student enjoyment of learning. Students answered both Likert-type and open-ended questions on these topics. Open-ended questions were analyzed using a directed qualitative content analysis. Students felt that the CBL unit was effective in increasing their information literacy and critical thinking skills, and they enjoyed the unit. According to survey results, the CBL developed several measured areas of student critical thinking skills, with the exception of the students’ abilities to analyze their own biases. The CBL unit appeared to be an effective and efficient way of simultaneously covering multiple learning outcomes and music therapy competencies. However, students did not perceive any changes in their ability to analyze their own biases which, based on previous psychology and sociology research, takes more than one isolated learning unit to address. Implications for music therapy education are addressed.
Correlation between equi-partition of aminoacyl-tRNA synthetases and amino-acid biosynthesis pathways
Authors: Takénaka Akio , Moras Dino 
Published: January 2020

AbstractThe partition of aminoacyl-tRNA synthetases (aaRSs) into two classes of equal size and the correlated amino acid distribution is a puzzling still unexplained observation. We propose that the time scale of the amino-acid synthesis, assumed to be proportional to the number of reaction steps (NE) involved in the biosynthesis pathway, is one of the parameters that controlled the timescale of aaRSs appearance. Because all pathways are branched at fructose-6-phosphate on the metabolic pathway, this product is defined as the common origin for the NE comparison. For each amino-acid, the NE value, counted from the origin to the final product, provides a timescale for the pathways to be established. An archeological approach based on NE reveals that aaRSs of the two classes are generated in pair along this timescale. The results support the coevolution theory for the origin of the genetic code with an earlier appearance of class II aaRSs.