bluuebunny/crossref_metadata_2025 huggingface dataset:
SiO2/C Composite Derived from Rice Husks with Enhanced Capacity as Anodes for Lithium‐Ion Batteries
Authors: Feng Yi , Liu Xiaoyang , Liu Li , Zhang Ziqing , Teng Yifei , Yu Deyang , Sui Jiayang , Wang Xiaofeng
Published: October 2018

High‐capacity SiO2/C composites with uniform distribution, rice husks (RHs) as raw materials, were scalably prepared by the ball milling method. Based on a fact that the porous SiO2 nanoparticles and carbon in RHs possess natural properties, ball mill could visibly decrease grain sizes of clustering SiO2 particles and C blocks and then improve the dispersivity of the two components, finally forming desirable SiO2/C composite, which can generate more active sites for Li+ storage as well as can effectively buffer the volume change during cycling. Therefore, SiO2/C composites, evaluated as anode for lithium ion batteries, exhibited an excellent electrochemical performance, especially the highly reversible capacity of 827 mA h g−1 over 300 cycles at 100 mA g−1 and 530 mA h g−1 at the large rate of 500 mA g−1, which suggests that the facile ball mill with environmental friendliness and large‐scale preparation may be available for electrode materials derived from biomass.
Iron‐Rich Natural Mineral Gibeon Meteorite Catalyzed N‐formylation of Amines using CO2 as the C1 Source
Authors: Gopakumar Aswin , Akçok Ismail , Lombardo Loris , Le Formal Florian , Magrez Arnaud , Sivula Kevin , J. Dyson Paul
Published: October 2018

N‐formylated amines (formamides) are important intermediates and the development of efficient and sustainable N‐formylation reactions have attracted considerable attention. Here, we demonstrate that an iron‐rich Gibeon meteorite is an efficient heterogeneous catalyst for this reaction employing carbon dioxide as the source of the formyl CO group. The Gibeon meteorite catalyst is stable, reusable, and affords a wide range of formamides with outstanding chemoselectivity (near‐quantitative yields) under mild conditions (1 – 10 bar CO2 and 25oC). A tentative mechanistic cycle has been proposed for the reaction. This work demonstrates the effectiveness of natural materials as catalysts and how they can be used to inspire the development of synthetic catalysts.
A Direct P2O5‐Mediated Synthesis of Diverse Sulfur‐Containing Triazoles via Alkylation of NH‐1,2,3‐triazoles with Dimethyl Sulfoxide
Authors: Zhang Chuanxin , Zheng Lei , Yan Qiong , Hu Qinquan , Jia Fengcheng , Chen Yunfeng
Published: October 2018

A direct synthesis of N‐(methylthio)methyl triazoles from NH‐1,2,3‐triazoles and dimethyl sulfoxide (DMSO) by P2O5‐mediated variant Pummerer rearrangement reaction has been developed. This reaction could give N1 and N2‐ (methylthio)methyl 1,2,3‐triazoles with high overall yields. Different from the general steric effects on the regioselective synthesis of N‐substituted 1,2,3‐triazoles, it was found that the electronic effects together with steric effects played a crucial role in the regioselectivities of the reactions.
On the Eigenform and Viability of Human Complex Systems: A View to Epistemologically Ground Current Psychotherapy
Authors: Cheli Simone
Published: October 2018

The present paper is devoted to the description of a model that may support the theoretical integration and the clinical advance of current psychotherapy. On one hand, it reports a narrative review of the common trends of the so‐called Third Wave of Cognitive‐Behavioural Therapy and other modern approaches. On the other hand, it defines epistemological tools that may help therapists in understanding such trends. The model comprises five main principles that are explained in terms of theoretical and clinical implications. Further studies are needed in order to prove its clinical effectiveness and extensively report the subsumed therapeutic mechanisms. © 2018 John Wiley & Sons, Ltd.
Role of TiO2and carbon nanotubes on polyethylene, and effect of accelerated weathering on photo oxidation and mechanical properties
Authors: Zagho Moustafa M. , AlMaadeed Mariam Al Ali , Majeed Khaliq
Published: October 2018

In this work, LLDPE‐based composite films were prepared by melt mixing followed by compression molding to investigate the role of titanium oxide nanoparticles (TONPs) and/or multiwalled carbon nanotubes (CNTs) on the accelerated weathering samples (maximum of 39 days). Accelerating weathering caused the emerging of oxidation peaks in the FT‐IR spectra for LLDPE and LLDPE/TONPs. These peaks were not pronounced in the LLDPE/CNTs samples. The same prevention of oxidation peaks were noticed for the hybrid additives samples. Tensile properties decreased by exposing the composite samples to accelerating weathering. TONPs increased the tensile strength of the samples by 11.5% but deterioration of this property is the same as the pristine sample after accelerated weathering for 39 days. Addition of CNTs had negligible effect on the tensile strength but it kept the same approximate value of the original before the accelerated weathering (e.g., 23.2 MPa for 1 wt% of CNTs). CNTs also protected the samples even with the presence of TONPs because of the absorbance and antioxidants effects. The addition of CNTs into LLDPE network have not only retarded decomposition of LLDPE but also decreased catalytic activity of TONPs to activate degradation due to accelerated weathering. J. VINYL ADDIT. TECHNOL., 25:19–25, 2019. © 2018 Society of Plastics Engineers
Noncanonical features and modifications on the 5′‐end of bacterial sRNAs and mRNAs
Authors: Vasilyev Nikita , Gao Ang , Serganov Alexander
Published: October 2018

Although many eukaryotic transcripts contain cap structures, it has been long thought that bacterial RNAs do not carry any special modifications on their 5′‐ends. In bacteria, primary transcripts are produced by transcription initiated with a nucleoside triphosphate and are therefore triphosphorylated on 5′‐ends. Some transcripts are then processed by nucleases that yield monophosphorylated RNAs for specific cellular activities. Many primary transcripts are also converted to monophosphorylated species by removal of the terminal pyrophosphate for 5′‐end‐dependent degradation. Recent studies surprisingly revealed an expanded repertoire of chemical groups on 5′‐ends of bacterial RNAs. In addition to mono‐ and triphosphorylated moieties, some mRNAs and sRNAs contain cap‐like structures and diphosphates on their 5′‐ends. Although incorporation and removal of these groups have become better understood in recent years, the physiological significance of these modifications remain obscure. This review highlights recent studies aimed at identification and elucidation of novel modifications on the 5′‐ends of bacterial RNAs and discusses possible physiological applications of the modified RNAs.

This article is categorized under:

RNA Turnover and Surveillance > Regulation of RNA Stability

RNA Structure and Dynamics > RNA Structure, Dynamics, and Chemistry

RNA Processing > Capping and 5′ End Modifications
Dietary cholesterol does not break your heart but kills your liver
Authors: Püschel Gerhard P. , Henkel Janin
Published: October 2018

It is increasingly accepted that dietary cholesterol has a much lower impact on the progression of cardiovascular disease than previously assumed. However, both animal experiments and human studies seem to support the view that dietary cholesterol may contribute to the transition from benign steatosis to the potentially fatal non-alcoholic steatohepatitis. Cholesterol esters and cholesterol accumulate in the hepatocyte and impair its function. This leads to oxidative stress and endoplasmic reticulum stress triggering the release of pro-inflammatory cytokines and rendering the hepatocyte more susceptible to apoptotic or necrotic cell death. Kupffer cells group around dying hepatocytes and phagocytose the hepatocyte debris and lipids. In addition, they are exposed to lipid peroxidation products released from hepatocytes. Kupffer cells, thus activated, release pro-inflammatory, chemotactic and profibrotic cytokines that promote inflammation and fibrosis. Therefore, dietary cholesterol may be harmful to the liver, in particular when administered in combination with polyunsaturated fatty acids that favor lipid peroxidation.
Impact of a healthy lifestyle intervention program during pregnancy on women and newborn: STUDY PROTOCOL for a quasi-experimental study
Authors: Silva Ana , Pereira Beatriz , Souza Sérgio , Moreira Carla , Guerra Cláudia , Ferreira Cátia , Lopes Luís , Rosário Rafaela
Published: October 2018

Physical activity during pregnancy assumes an important role in the health of both the pregnant and newborn. Given that physical activity tends to decrease throughout this period, it is essential to inform and encourage pregnant women to acquire healthy lifestyles, enabling them to improve their physical and psychological well-being.

This study aims to evaluate the impact of an intervention program on pregnant, newborn, and gestation outcomes, by increasing physical activity levels during this important period of woman's life.

This study will be conducted with 410 pregnant women in the first trimester. Participants will be recruited through the central hospital or community centers. Following consent and baseline data collection, pregnant women who do not have any medical or obstetric contraindication for physical exercise, will be assigned to the control or intervention groups. There will be 3 assessment periods: baseline (time 1—between the 7th and 10th week of gestation), after the intervention (time 2—between the 1st and 3rd day after delivery), and follow-up (time 3—1 month after delivery). The intervention group will have an intervention program, which comprises 2 terms: (1) teachers’ training delivered by researchers and (2) intervention delivered to pregnant women by trained teachers, which consists in 3 weekly classes of physical exercise (45/50 min each). The control group will have the standard care that is usually provided by health professionals.

The research has been approved by the Subcommittee on Ethics for the Life Sciences and Health of the University of Minho (id: SECVS 086/2015) and by the Ethics Committee for Health from the Central Hospital (id: 056/2014). There is a registration in clinical trials.gov, with the reference NCT03045237 (02/2017).

This study has the potential to increase pregnant's physical activity levels and contribute to programs and policies developed to optimize lifestyles during pregnancy and with implications in newborn outcomes.
Impact of the Aliso Canyon Gas Leak on Respiratory-Related Conditions Among US Department of Veterans Affairs (VA) Users
Authors: Lukowsky Lilia R. , Der-Martirosian Claudia , Gable Alicia R. , Dobalian Aram
Published: October 2018

Background

The largest gas leak in United States history occurred October 2015 through February 2016 near Porter Ranch (PR), California, and prompted the temporary relocation of nearby residents because of health concerns related to natural gas exposure.

Methods

A retrospective cohort study was conducted using US Department of Veterans Affairs (VA) administrative and clinical data. On the basis of zip codes, we created two groups: PR (1920 patients) and San Fernando Valley (SFV) (15 260 patients) and examined the proportion of outpatient visits to VA providers with respiratory-related diagnoses between October 2014 and September 2017.

Results

We observed an increase in the proportion of visits in the PR group during the leak (7.0% vs 6.1%, P<0.005) and immediately after the leak (7.7% vs 5.3%, P<0.0001). For both groups, we observed a decrease in respiratory diagnoses one year after the leak (7.0% to 5.9%, P<0.05 PR; 6.1% to 5.7%, P<0.01 SFV).

Conclusion

Exposure to natural gas likely led to the observed increase in respiratory-related diagnoses during and after the PR gas leak. Early relocation following natural gas leaks may mitigate respiratory exacerbations. (Disaster Med Public Health Preparedness. 2019;13:419-423)
Hospitals’ Preparedness to Treat Pediatric Patients During Mass Casualty Incidents
Authors: Toida Chiaki , Muguruma Takashi , Hashimoto Keiji
Published: October 2018

Objectives

Little is known about the preparedness of hospitals to care for pediatric patients during a major incident in Japan. This study assessed the disaster preparedness of a children’s hospital in Japan by using a disaster drill.

Materials and Methods

We performed a triage drill with all hospitalized patients. The triage tags and medical records were reviewed retrospectively. We determined the efficacy of triage education, the validity of the Simple Triage and Rapid Treatment (START) method for children, and the potential need for evacuation through the disaster drill.

Results

This study highlights 3 important issues about the hospital’s preparedness. First, it is difficult to promote disaster education for staff who are not well trained on handling disasters. Second, the START method is suitable for children older than 5 years, but it has a high rate of over-triaging among younger children. Third, approximately 40% of patients who are coded as immediate may require transportation resources in a hospital evacuation.

Conclusions

Our findings suggest that disaster preparedness, such as educating hospital staff regarding disasters and establishing evacuation systems for a number of pediatric patients when a disaster happens, is essential for caring for hospitalized children during a mass casualty incident. (Disaster Med Public Health Preparedness. 2019;13:429-432)
Lythrum salicaria(Purple Loosestrife) Control with Herbicides: Multiyear Applications
Authors: Knezevic Stevan Z. , Osipitan O. Adewale , Oliveira Maxwel C. , Scott Jon E.
Published: October 2018

This study evaluated the effectiveness of 14 herbicide treatments for purple loosestrife (Lythrum salicariaL.) control over a period of 10 yr. The study commenced in 2000/2001 at four wetland locations in Nebraska. The evaluated herbicides included: glyphosate at 2.2 and 3.4 kg ha−1; 2,4-D dimethylamine at 1.4 and 2.8 kg ae ha−1; triclopyr at 1.3 and 2.1 kg ae ha−1; imazapyr at 1.1 and 1.7 kg ae ha−1; metsulfuron at 0.042 and 0.084 ai kg ha−1; fosamine at 13.5 and 22.4 kg ai ha−1; triclopyr at 1.3 kg ae ha−1plus 2,4-D amine at 1.4 ae kg ha−1; and metsulfuron at 0.042 kg ai ha−1plus 2,4-D amine at 1.4 kg ae ha−1. Some treatments provided excellent control (90%) that lasted only one season, while others suppressedL. salicariagrowth for multiple seasons, depending on the location and the age ofL. salicariastand. Application of higher rates of glyphosate, imazapyr, and metsulfuron consistently provided excellent control (≥90%) ofL. salicariathat lasted 360 d after treatment at most locations. Application of fosamine and the lower rate of 2,4-D amine provided the leastL. salicariacontrol at most locations. The older theL. salicariastand, the more multiple applications of herbicides were needed to completely controlL. salicaria. Generally, there were higher percentages of grasses in the 2,4-D-, triclopyr-, and metsulfuron-treated plots compared with higher percentages of broadleaf species in the glyphosate- and imazapyr-treated plots at each location.
Bottom-topography effect on the instability of flows around a circular island
Authors: Rabinovich Michael , Kizner Ziv , Flierl Glenn
Published: October 2018

Instabilities of a two-dimensional quasigeostrophic circular flow around a rigid circular wall (island) with radial offshore bottom slope are studied analytically. The basic flow is composed of two concentric, uniform potential-vorticity (PV) rings with zero net vorticity attached to the island. Linear stability analysis for perturbations in the form of azimuthal modes leads to a transcendental eigenvalue equation. The non-dimensional governing parameters are beta (associated with the steepness of the bottom slope, hence taken to be negative), the PV in the inner ring and the radii of the inner and outer rings. This setting up of the problem allows us to derive analytically the eigenvalue equation. We first analyse this equation for weak slopes to understand the asymptotic first-order corrections to the flat-bottom case. For azimuthal modes 1 and 2, it is found that the conical topographic beta effect stabilizes the counterclockwise flows, but destabilizes clockwise flows. For a clockwise flow, the beta effect gives rise to the mode-1 instability, contrary to the flat-bottom case where this mode is always stable. Moreover, however small the slope steepness (beta) is, it leads to the mode-1 instability in a large region in the parameter space. For steep slopes, the beta term in the PV expression may dominate the relative vorticity term, causing stabilization of the flow, as compared to the flat-bottom case, for both directions of the basic flow. When the flow is counterclockwise and the slope steepness is increased, mode 2 turns out to be entirely stable and modes 3, 4 and 5 enlarge their stability regions. In a clockwise flow, when the slope steepness is increased, mode 1 regains its stability in the entire parameter space, and mode 2 becomes more stable than mode 3. The bifurcation of mode 1 from stability to instability is discussed in terms of the Rossby waves at the contours of discontinuity of the basic PV and outside the uniform-PV rings.
Effects of gene polymorphisms of metabolic enzymes on the association between red and processed meat consumption and the development of colon cancer; a literature review
Authors: Doaei S. , Hajiesmaeil M. , Aminifard A. , Mosavi-Jarrahi S. A. , Akbari M. E. , Gholamalizadeh M.
Published: October 2018

The role of environmental factors and genetic susceptibility in the development of colon cancer (CC) has been already proven, but the role of gene polymorphisms in modifying the risk of environmental factors such as nutritional factors is still unknown. This study aimed to investigate the effect of polymorphisms of involved genes in the association between red meat consumption and the development of CC. The present review was carried out using keywords such as polymorphism and/or protein and/or red meat and/or processed meat and/or colon cancer. PubMed and Science Direct databases were used to collect all related articles published from 2001 to 2017. The presence of SNP in the coding genes of proteins involved in metabolism of nutrients could play significant roles in the extent of the effects of nutrition in the development of CC. The effect of dietary proteins greatly depends on the polymorphisms in the metabolising genes of these substances. Gene polymorphisms may have a role in colorectal cancer risk, especially in people with high meat intake, and this leads to a difference in the effects of meat consumption in different individuals. To conclude, dietary recommendations for the prevention and control of CC should be modified based on the genotype of different individuals. Increasing our knowledge on this field of nutritional genomics can lead to personalised preventive and therapeutic recommendations for CC patients.
14C content in candu spent ion exchange resins and its release under alkaline conditions
Authors: Bucur C , Florea I , Reiller P E , Dumitrescu D
Published: October 2018

The total 14C content and its speciation (inorganic/organic) were measured in spent ion exchange resins (SIERs) received from Cernavoda Nuclear Power Plant (NPP). Also, 14C release from SIERs was investigated by desorption tests carried out in alkaline solution relevant for cementitious environment disposal. The method used for total 14C measurement consists of combustion in oxygen-rich atmosphere, while for speciation measurements, both in SIERs and in desorption solutions, an analytical method based on acid stripping and wet oxidation was applied. Around 97% from the total 14C inventory measured on the Cernavoda SIERs (33.7 kBq/g) was found to be in inorganic form and only 7% as organic 14C. Under alkaline conditions, 14C could be released both as gaseous and as soluble species: from the total 14C present in the SIERs samples around 7% was released as inorganic 14C in the gas phase and 79% as dissolved species (mainly as inorganic 14C). These percentages were obtained for unconditioned SIERs in NaOH solution. The SIERs will be immobilized in a suitable matrix for disposal, and the presence of Ca ions dissolved in cement pore water favor precipitation of 14C and consequently the amount of 14C released from disposal area should be lower.
ALIEN SEAMEN IN THE BRITISH NAVY, BRITISH LAW, AND THE BRITISH STATE, c. 1793 – c. 1815
Authors: CAPUTO SARA
Published: October 2018

During the ‘long eighteenth century’, several thousands of sailors born outside British territories served in the Royal Navy. This phenomenon, and the peculiarities of their employment compared to that of British seamen, remain largely unstudied. This paper aims to show that, as far as disabilities or privileges were concerned, official legislation only played a very small part in making alien seamen's experiences in the navy distinct from those of their British colleagues. More broadly, this article argues that, whilst transnationalism can be overemphasized, there are specific contexts and groups of people for which the power of the state falters when it comes to obstructing movement, and indeed it is forced, for its very survival, to act strategically against the barrier to circulation that frontiers normally constitute. In similar circumstances, the origins of the individuals concerned, intended as official labels that states normally use to classify them, control them, and claim or disclaim ownership over them, can become all but meaningless. Thus, naval sailors, as useful state servants, can be an excellent case-study to understand the category of legal ‘foreignness’ as it developed in modern nation-states, and the tensions inherent to it.
Until the Bitter End? The Diffusion of Surrender Across Battles
Authors: Lehmann Todd C. , Zhukov Yuri M.
Published: October 2018

Why do armies sometimes surrender to the enemy and sometimes fight to the bitter end? Existing research has highlighted the importance of battlefield resolve for the onset, conduct, and outcome of war, but has left these life-and-death decisions mostly unexplained. We know little about why battle-level surrender occurs, and why it stops. In this paper, we argue that surrender emerges from a collective-action problem: success in battle requires that soldiers choose to fight as a unit rather than flee, but individual decisions to fight depend on whether soldiers expect their comrades to do the same. Surrender becomes contagious across battles because soldiers take cues from what other soldiers did when they were in a similar position. Where no recent precedent exists, mass surrender is unlikely. We find empirical support for this claim using a new data set of conventional battles in all interstate wars from 1939 to 2011. These findings advance our understanding of battlefield resolve, with broader implications for the design of political-military institutions and decisions to initiate, continue, and terminate war.
DEVELOPMENT AND PSYCHOMETRIC TESTING OF AN INSTRUMENT TO MEASURE WOMEN’S PERCEPTIONS OF UNPLANNED PREGNANCY
Authors: Mohammadi Eesa , Nourizadeh Roghaiyeh , Simbar Masoumeh , Baghestani Ahmad Reza , Rohana Nicole
Published: October 2018

A woman’s decision to continue or terminate an unplanned pregnancy is affected by a broad range of contextual and cognitive factors. The identification of women’s perceptions of unplanned pregnancy is crucial for health care providers to be able to offer supportive care and counselling. The aim of this study was to develop an instrument to accurately measure women’s perceptions of unplanned pregnancy: the Women’s Perceptions of Unplanned Pregnancy Questionnaire. The instrument was developed using a methodological framework guided by Waltz et al. (2010). A conceptual model of the designed instrument emerged from the qualitative study using a content analysis approach conducted in Tabriz, Iran. Participants were recruited using convenience sampling method between June 2016 and July 2017. Participants were a sample of married Iranian women between the ages of 15 and 49 who had experienced an unplanned pregnancy, either unwanted or mistimed, within the last 3 months. Women with an established diagnosis of a psychological disorder were excluded from the study. The psychometric properties of the instrument were assessed using face, content, concurrent and construct validations. To evaluate face validity, qualitative and quantitative (item impact score) methods were used. The content validity was assessed by fifteen panel experts. In addition, concurrent validity of the designed instrument was tested using the Persian version of the Cambridge Worry Scale and the Spielberger State-Trait Anxiety Inventory. The construct validity was calculated by using the exploratory factor analysis method. Data were collected from questionnaires completed by 310 eligible women. Analysis of the data using exploratory factor analysis yielded 31 items in a unique six-factor structure. The instrument was found to have high internal consistency (Cronbach’s α=0.88) and adequate reliability (Intraclass Correlation Coefficient=0.89). A clearer understanding of women’s perceptions of unplanned pregnancy may enhance reproductive services and interventions.
Tariffs and Trees: The Effects of the Austro-Hungarian Customs Union on Specialization and Land-Use Change
Authors: Alix-Garcia Jennifer , Walker Sarah , Radeloff Volker , Kozak Jacek
Published: October 2018

This article examines the impact of the 1850 Austro-Hungarian customs union on production land-use outcomes. Using newly digitized data from the Second Military Survey of the Habsburg Monarchy, we apply a spatial discontinuity design to estimate the impact of trade liberalization on land use. We find that the customs union increased cropland area by 8 percent per year in Hungary between 1850 and 1855, while forestland area decreased by 6 percent. We provide suggestive evidence that this result is not confounded by the emancipation of the serfs, population growth, or technological change in agriculture.
Monetary-Policy Rule as a Bridge: Predicting Inflation without Predictive Regressions
Authors: Hua Jian , Wu Liuren
Published: October 2018

A major issue with predicting inflation rates using predictive regressions is that estimation errors can overwhelm the information content. This article proposes a new approach that uses a monetary-policy rule as a bridge between inflation rates and short-term interest rates and relies on the forward-interest-rate curve to predict future interest-rate movements. The 2-step procedure estimates the predictive relation not through a predictive regression but far more accurately through the contemporaneous monetary-policy linkage. Historical analysis shows that the approach outperforms random walk out of sample by 30%–50% over horizons from 1 to 5 years.
Genetic population structure in the swimming crab,Portunus trituberculatusand its implications for fishery management
Authors: Hui Min , Shi Guohui , Sha Zhongli , Liu Yuan , Cui Zhaoxia
Published: October 2018

Information on the genetic population structure of economic species is important for understanding their evolutionary processes and for management programmes. In this study, the genetic structure of 12P. trituberculatuspopulations along the China seas and Japan was analysed. A fragment of mitochondrial control region was sequenced as a genetic marker in swimming crabs sampled from the Bohai Sea, Yellow Sea, East China Sea, South China Sea and Japan, with dense sampling in the Bohai Sea. These populations showed an intermediate and significant genetic population structure, with an overall Φst value of 0.054 (P< 0.01). Based on a hierarchical AMOVA, they could be divided into two groups, the South China Sea population and all the other populations. The distribution of the haplotypes and the pairwise Φst values between populations indicated a high level of gene flow among most populations in the Bohai Sea, Yellow Sea, East China Sea and Japan. However, low but significant genetic differentiation (P< 0.05) was also detected among several populations in these areas. Many details of the genetic structure were revealed, especially for the populations in the semi-enclosed Bohai Sea, and the inconsistency with previous studies was discussed. The structure patterns indicate that sea-level changes during the glacial period of the Pleistocene and oceanographic factors are important in shaping the genetic population structure of swimming crabs. Finally, the implications for fishery are suggested.
Material selection in engineering design based on nearest neighbor search under uncertainty: a spatial approach by harmonizing the Euclidean and Taxicab geometry
Authors: Das Debasis , Bhattacharya Somnath , Sarkar Bijan
Published: October 2018

Material selection is a fundamental step in mechanical design that has to meet all the functional requirements of the component. Multiple-attributed decision-making (MADM) processes are already well established to choose the preeminent alternative from the finite set of alternatives, but there is some lack of geometrical evidence if the alternatives are considered as multi-dimensional points. In this paper, a fresh spatial approach is proposed based on nearest neighbor search (NNS) in which the nearness parameter is considered as a Manhattan norm (Taxicab geometry) in turn which is a function of the Euclidean norm and cosine similarity to raise a preeminent alternative under the MADM framework. Cryogenic storage tank and flywheel are considered as two case studies to check the validity of the proposed spatial approach based on NNS in material selection. The result shows the right choice for the cryogenic storage tank is the austenitic steel (SS 301 FH), and for the flywheel, it is a composite material (Kevler 49-epoxy FRP) those are consistent with the real-world practice and the results are compared with other MADM methods of previous works.
WILLIAM MCGIBBON AND THE VERNACULARIZATION OF CORELLI'S MUSIC
Authors: CHISHOLM LEON
Published: October 2018

In his 1720 poem ‘To the Musick Club’ Allan Ramsay famously called upon an incipient Edinburgh Musical Society to elevate Scottish vernacular music by mixing it with ‘Correlli's soft Italian Song’, a metonym for pan-European art music. The Society's ensuing role in the gentrification of Scottish music – and the status of the blended music within the wider contexts of the Scottish Enlightenment and the forging of Scottish national identity – has received attention in recent scholarship. This article approaches the commingling of vernacular and pan-European music from an alternative perspective, focusing on the assimilation of Italian music, particularly the works of Arcangelo Corelli, into popular, quasi-oral traditions of instrumental music in Scotland and beyond. The case of ‘Mr Cosgill's Delight’, a popular tune derived from a gavotte from Corelli's Sonate da camera a tre, Op. 2, is presented as an illustration of this process. The mechanics of vernacularization are further explored through a cache of ornaments for Corelli's Sonate per violino e violone o cimbalo, Op. 5, by the Scottish professional violinists William McGibbon and Charles McLean. The study foregrounds the agency of working musicians dually immersed in elite and popular musical traditions, while shedding new light on McGibbon's significance as an early dual master of Italian and Scots string-playing traditions.
Reassessment (after 15 Years) of Non-Patient Adults by the Rorschach Method
Authors: Freitas Fabiana Rego , Pasian Sonia Regina
Published: October 2018

The investigation of personality using the Rorschach Method has been historically established, however, its proper use requires continuous study, especially in regard to reliability, validity and normative references. This study’s objective was to verify stability indicators of Rorschach (French Approach) through a reassessment (after 15 years) of non-patient adults previously addressed in the normative study by Pasian (1998). A total of 88 adults, aged between 34 and 69 years old, of both sexes, with different socio-economic and educational levels, were reassessed in 2013 in the state of São Paulo, Brazil. The responses were independently rated by different judges, with adequate precision. The average results obtained collected in 1998 and 2013 were analyzed to determine if these two sets of data were significantly different from each other (Student’s t test, p ≤ .05) and the following variables were compared: Productivity indices, Apprehension Modes/Location, Formal Quality, Determinants, Contents and Banality. The overall stability level in these variables is considerable (mean r = .28, ± SD = 0.21). We discuss the theoretical approach of the Rorschach method regarding structural aspects of personality and developmental issues in personality assessment.
Development of High Levels of Metribuzin Tolerance in Lentil
Authors: McMurray Larn S. , Preston Christopher , Vandenberg Albert , Mao Dili , Oldach Klaus H. , Meier Kendra S. , Paull Jeffrey G.
Published: October 2018

Lentil (Lens culinarisMedik.) is an important and expanding crop in southern Australia and a significant crop in western Canada. Currently, production in both countries is limited by an inability to effectively control weeds, due in part to a lack of registered safe and effective herbicides. Metribuzin is a broad-spectrum herbicide providing an alternative weed control option to the imidazolinones, but it has low crop safety in lentil. Two methods, germplasm screening using a hydroponic sand assay and field screening of a large mutated population of the Australian cultivar ‘PBA Flash’ were initially used to identify lines with putative metribuzin tolerance over current cultivars. Dose–response experiments showed the germplasm line SP1333 had GR50(the rate required to reduce dry weight 50%) values up to four times higher than PBA Flash. However, the mutation selections M043 and M009 had GR50values more than 25 times higher than PBA Flash. A field study in Canada, under conditions of induced shade and no shade 72 h before POST application of metribuzin, confirmed the intermediate level of tolerance in SP1333 and the high level in the two mutant lines compared with 20 Canadian and Australian genotypes. This relative increase in metribuzin tolerance of the two mutant lines over the parent cultivar is higher than all previous reports in a range of crop species. The development of large mutant populations combined with large M2field screens was a successful method for developing high levels of metribuzin tolerance in lentil. The estimated mutation rate of the mutant lines was 9.4×10−8. All three lines are currently being used as parents in lentil breeding programs.
The First Cases of Evolving Glyphosate Resistance in UK Poverty Brome (Bromus sterilis) Populations
Authors: Davies Laura R. , Hull Richard , Moss Stephen , Neve Paul
Published: October 2018

Poverty brome (Bromus sterilisL.) [sterile or barren brome, syn.Anisantha sterilis(L.) Nevski] is a problematic UK arable weed. There are currently no confirmed cases of glyphosate resistance in any weed species in the United Kingdom or inB. sterilisworldwide. However, there are reports of poor control by glyphosate in this species. Here, we report experiments to confirm the suspected on-farm resistance ofB. sterilispopulations to glyphosate. Glyphosate screening and dose–response experiments established that glyphosate sensitivity of three UKB. sterilispopulations exhibiting poor field control is outside the normal range of sensitivity of 30 sensitive populations and adjacent unexposed populations. Control of sensitive populations ranged from 49% to 82% and for suspected resistant populations from 21% to 30%. Dose–response ED50values of sensitive populations ranged between 241 and 313 g ai ha−1; corresponding values of suspected resistant populations ranged between 420 and 810 g ha−1, and resistance indices ranged from 1.55 to 4.5. Suspected resistant populations were incompletely controlled at the recommended field rate of glyphosate (540 g ha−1), while adjacent unexposed populations were completely controlled. We conclude that some UK populations ofB. sterilishave reduced glyphosate sensitivity and are in the process of evolving resistance. This is the first reported case of reduced glyphosate sensitivity in any UK weed species and inB. sterilisworldwide. This, coupled with increasing glyphosate use, highlights the need for increased vigilance and monitoring for glyphosate resistance in the United Kingdom.
Observing the Ice‐Covered Weddell Gyre With Profiling Floats: Position Uncertainties and Correlation Statistics
Authors: Chamberlain Paul M. , Talley Lynne D. , Mazloff Matthew R. , Riser Stephen C. , Speer Kevin , Gray Alison R. , Schwartzman Armin
Published: October 2018

Argo‐type profiling floats do not receive satellite positioning while under sea ice. Common practice is to approximate unknown positions by linearly interpolating latitude‐longitude between known positions before and after ice cover, although it has been suggested that some improvement may be obtained by interpolating along contours of planetary‐geostrophic potential vorticity. Profiles with linearly interpolated positions represent 16% of the Southern Ocean Argo data set; consequences arising from this approximation have not been quantified. Using three distinct data sets from the Weddell Gyre—10‐day satellite‐tracked Argo floats, daily‐tracked RAFOS‐enabled floats, and a particle release simulation in the Southern Ocean State Estimate—we perform a data withholding experiment to assess position uncertainty in latitude‐longitude and potential vorticity coordinates as a function of time since last fix. A spatial correlation analysis using the float data provides temperature and salinity uncertainty estimates as a function of distance error. Combining the spatial correlation scales and the position uncertainty, we estimate uncertainty in temperature and salinity as a function of duration of position loss. Maximum position uncertainty for interpolation during 8 months without position data is 116 ± 148 km for latitude‐longitude and 92 ± 121 km for potential vorticity coordinates. The estimated maximum uncertainty in local temperature and salinity over the entire 2,000‐m profiles during 8 months without position data is 0.66 ∘C and 0.15 psu in the upper 300 m and 0.16 ∘C and 0.01 psu below 300 m.
Accurate Determination of the Absolute 3He/4He Ratio of a Synthesized Helium Standard Gas (Helium Standard of Japan, HESJ): Toward Revision of the Atmospheric 3He/4He Ratio
Authors: Mishima Kenji , Sumino Hirochika , Yamada Takahito , Ieki Sei , Nagakura Naoki , Otono Hidetoshi , Oide Hideyuki
Published: October 2018

The helium standard of Japan, referred to as HESJ, is an interlaboratory standard for the 3He/4He ratio. While the ratio of 3He and 4He of the HESJ was previously determined by a relative comparison to atmospheric helium, the absolute value of the 3He/4He ratio of the HESJ has not been directly determined yet. Therefore, it relies on the early measurements of that of atmospheric helium. The accuracy of the absolute 3He/4He ratios of the atmosphere and other working standards including HESJ is crucial in some applications of helium isotopes, such as tritium‐3He dating, surface‐exposure age determination based on cosmogenic 3He, and the accurate measurement of the neutron lifetime. In this work, new control samples of helium gases with 3He/4He ratios of 14, 28, and 42 ppm were fabricated with accuracy of 0.25–0.38% using a gas‐handling system for a neutron lifetime experiment at Japan Proton Accelerator Research Complex. The relative 3He/4He ratios of these samples and the HESJ were measured using a magnetic‐sector type, single‐focusing, noble gas mass spectrometer with a double collector system. As a result, the absolute 3He/4He ratio of the HESJ was determined as 27.36 ± 0.11 ppm. The atmospheric 3He/4He ratio was determined as 1.340 ± 0.006 ppm, based on this work.
Global Retrievals of Solar‐Induced Chlorophyll Fluorescence With TROPOMI: First Results and Intersensor Comparison to OCO‐2
Authors: Köhler Philipp , Frankenberg Christian , Magney Troy S. , Guanter Luis , Joiner Joanna , Landgraf Jochen
Published: October 2018

In recent years, solar‐induced chlorophyll fluorescence (SIF) retrieved from spaceborne spectrometers has been extensively used as a proxy for terrestrial photosynthesis at relatively sparse temporal and spatial scales. The near‐infrared band of the recently launched TROPOspheric Monitoring Instrument (TROPOMI) features the required spectral resolution and signal‐to‐noise ratio to retrieve SIF in a spectral range devoid of atmospheric absorption features. We find that initial TROPOMI spectra meet high expectations for a substantially improved spatiotemporal resolution (up to 7‐km × 3.5‐km pixels with daily revisit), representing a step change in SIF remote sensing capabilities. However, interpretation requires caution, as the broad range of viewing‐illumination geometries covered by TROPOMI's 2,600‐km‐wide swath needs to be taken into account. A first intersensor comparison with OCO‐2 (Orbiting Carbon Observatory‐2) SIF shows excellent agreement, underscoring the high quality of TROPOMI's SIF retrievals and the notable radiometric performance of the instrument.
Purple Auroral Rays and Global Pc1 Pulsations Observed at the CIR‐Associated Solar Wind Density Enhancement on 21 March 2017
Authors: Shiokawa K. , Ozaki M. , Kadokura A. , Endo Y. , Sakanoi T. , Kurita S. , Miyoshi Y. , Oyama S.‐I. , Connors M. , Schofield I. , Ruohoniemi J. M. , Nośe M. , Nagatsuma T. , Sakaguchi K. , Baishev D. G. , Pashinin A. , Rakhmatulin R. , Shevtsov B. , Poddelsky I. , Engebretson M. , Raita Tero , Tanaka Y.‐M. , Shinohara M. , Teramoto M. , Nomura R. , Fujimoto A. , Matsuoka A. , Higashio N. , Takashima T. , Shinohara I. , Albert Jay M.
Published: October 2018

This paper reports two unique auroral features: postmidnight purple auroral rays and global Pc1 geomagnetic pulsations, observed before the onset of the corotating interaction region (CIR) storm of 21 March 2017, at the beginning of the first campaign of the new Particles and Waves in the Inner magnetosphere using Ground‐based network observation (PWING) longitudinal ground network with the Arase satellite. The purple auroral rays were observed from ~0315 to 0430 UT (~03–04 magnetic local time) in the northeastern sky at Husafell, Iceland (magnetic latitude: 64.9°N). We newly propose that the entry of high‐density CIR plasma into the magnetotail created purple auroral rays in the sunlit ionosphere. Pc1 geomagnetic pulsations at frequencies of 0–0.5 Hz were observed after ~00 UT over a wide local time range, of 13 hr, from midnight to afternoon sectors at subauroral latitudes associated with CIR arrival. These results indicate preconditioning of the magnetosphere due to crossing of a CIR.
A Wetter Arctic Coincident With Hemispheric Warming 8,000 Years Ago
Authors: Thomas E. K. , Castañeda I. S. , McKay N. P. , Briner J. P. , Salacup J. M. , Nguyen K. Q. , Schweinsberg A. D.
Published: October 2018

Arctic precipitation is predicted to increase this century, with dramatic consequences for high‐latitude systems. Observations remain spatiotemporally limited, hampering determination of the forcings causing wetter Arctic conditions, although two mechanisms have been proposed: enhanced local evaporation and greater poleward atmospheric moisture transport. Here a subcentennial‐resolution multiproxy lake sediment record from western Greenland sheds light on these mechanisms. Cool summers throughout the Northern Hemisphere and in western Greenland 9 to 8 ka are associated with aridity in this region, via reductions in local evaporation and in meridional moisture gradients, which suppressed poleward moisture transport. Summers became more humid starting 8.1 ka, mainly due to increased evaporation from warmer Arctic seas but also to increased poleward moisture transport caused by hemispheric warming. This record provides independent support for predictions of both enhanced local evaporation and increased poleward moisture transport causing wetter Arctic summers in step with global ocean and atmosphere warming.
Fluvial Response to a Period of Hydrometeorological Change and Landscape Disturbance in the Canadian High Arctic
Authors: Beel C. R. , Lamoureux S. F. , Orwin J. F.
Published: October 2018

Records of fluvial suspended sediment fluxes are sensitive indicators of hydrometeorological and permafrost change. Here we document the watershed‐scale suspended sediment flux response to a period of hydrometeorological change and landscape disturbance in two High Arctic rivers. Net in‐channel and extra‐channel sediment storage and changing hydrometeorological conditions dampen the downstream transport of increased sediment delivery from localized permafrost slope disturbances. Our results show that the impact of permafrost disturbance is likely a smaller effect than a shift toward a pluvially (rainfall) dominated hydrological regime in these environments. Suspended sediment transport is energy limited under contemporary hydrometeorological conditions, and the transition from a nival to pluvial dominated flow and sediment transfer regime will likely accelerate landscape change in the High Arctic.
The Effect of Bagnold Dunes Slopes on the Short Timescale Air Temperature Fluctuations at Gale Crater on Mars
Authors: Miller Nina , de la Torre Juárez Manuel , Tamppari Leslie
Published: October 2018

In situ measurements of how air temperature near the surface responds to changing topography on other planets are rare. The Bagnold dunes were investigated by Mars Science Laboratory's Curiosity rover during its second winter in Gale crater on Mars. The effect of Bagnold dune slopes on the local microclimate air temperature, potential temperature, near‐surface lapse rate, and how they change the variability of short‐lived air temperature fluctuations is described. The oscillations with periods under 24 min are characterized using Fourier analysis. Comparing the sols during the Bagnold dunes exploration to a typical southern winter sol, we characterize the changes in temperature oscillations near the east facing High dune, the west facing Namib dune, as well as in the area between the dunes. Each of the regions had distinct signatures, with the west and east orientation of the dunes affecting the data.
A Prediction Model of Ionospheric foF2 Based on Extreme Learning Machine
Authors: Bai Hongmei , Fu Haipeng , Wang Jian , Ma Kaixue , Wu Taosuo , Ma Jianguo
Published: October 2018

The highly nonlinear variation of the ionospheric F2 layer critical frequency (foF2) greatly limits the efficiency of communications, radar, and navigation systems that employ high‐frequency radio waves. This paper proposes an effective method to predict the foF2 using the extreme learning machine (ELM). Compared with the previous neural network model based on feedforward algorithm, the ELM model offers the advantages of faster training speed and less manual intervention. The ELM model is trained with the daily hourly values of foF2 at Darwin (12.4°S, 131.5°E) in Australia. The training data are selected from 1995 to 2012, except 1997 and 2000, which includes all periods of quiet and disturbed geomagnetic conditions. The foF2 data to verify model performance are selected in 1997, 2000, and 2013, which are low, high, and moderate solar activity years, respectively. The prediction results have shown that the proposed ELM model can achieve faster training process while maintaining the similar accuracy compared with BPNN. In addition, the proposed ELM model is compared with the International Reference Ionosphere model prediction. The ELM model predicts the foF2 values more accurately than the International Reference Ionosphere model in low (1997), moderate (2013), and high (2000) solar activity years, as clearly seen on the yearly root‐mean‐square error. As far as the author's knowledge, this is the first time that the ELM model is applied to predict foF2.