bluuebunny/crossref_metadata_2025 huggingface dataset:
A NEW WELDING MATERIAL FOR REGENERATION IN THE WELDING TECHNOLOGY BASED ON NICKEL. ANALYSIS OF THE COMPOSITION AND PROPERTIES OF DEFORMABLE HEAT-RESISTANT HIGH-CHROMIUM NICKEL-BASED ALLOYS FOR WELDED PARTS. ANALYSIS OF EXISTING FUELLING STATIONS TYPES AND VEHICLES USING HYDROGEN, HYDROGEN PRODUCTION AND STORING METHODS
Authors: Nengjun Ben , Pengfei Zhou , Labartkava Oleksandr , Samokhin Mykhailo
Published: September 2019

This work involves an analysis of high-chromium high-temperature deformable wieldable nickel alloys for use in GTE repair assemblies.

It is shown that the alloys EP868 (VZh98) and Haynes 230 can be used in welded assemblies with an operating temperature of 800-1100 °C. The alloys Nimonic 81, Nimonic 91, IN 935, IN 939, and Nicrotan 2100 GT also have a high potential for use in welded assemblies. They are characterized by a combination of good weldability, high-temperature strength, and resistance to scaling.

There have been conducted studies on high-temperature salt corrosion of model nickel alloys. They allowed establishing the patterns of the impact of base metal alloying with chromium, aluminum, titanium, cobalt, tungsten, molybdenum, niobium, tantalum and rare earth metals on the critical temperature of the start of salt corrosion Tcor and the alloy mass loss.

It has been established that alloys with a moderate concentration (13-16%) of chromium can possess satisfactory hightemperature corrosion resistance (HTC resistance) under the operating conditions of ship GTE. The HTC resistance of CrAl-Ti alloys improves upon reaching the ratio Ti/Al ˃ 1. Meanwhile, the ratio Ti/Al ˂ 1 promotes the formation of corrosion products with low protective properties.

The positive effect of tantalum on the HTC resistance of alloys is manifested at higher test temperatures than that of titanium, and the total content of molybdenum and tungsten in alloys is limited by the condition 8Mo2 – 2W2 = 89. The presence of refractory elements stabilizes the strengthening phase and prevents formation of the ɳ-phase. However, their excess promotes formation of the embrittling topologically close packed (TCP) phases and boundary carbides of an unfavorable morphology. Based on the studies of the HTC resistance, there has been identified a class of model high-temperature corrosionresistant nickel alloys with a moderate or high chromium content (30%), Ti/Al ˃ 1, and a balanced content of refractory and rare-earth elements.
Facile Synthesis of Bulk Cylinder Consolidated with Ultralong Silver Vanadate Nanowires and its Enhanced Antibacterial Activities Against Gram Positive and Gram-Negative Bacteria
Authors: Klöckner Willy , Vidal Cristian Patiño , de Dicastillo Carol López , Yadav Ram Manohar , SINGH D I N E S H P
Published: September 2019

Self-assembled 3D structures with 0, 1 or 2D nano building blocks are fascinating due to its astounding new and enhanced properties for various applications. Here we report the acetonitrile mediated synthesis of self-assembled bulk cylinder of length ~ 9.00 cm and diameter ~ 4.0 cm consolidated with ultralong and very thin silver vanadate nanowires and its enhanced antibacterial activity.  The addition of acetonitrile during synthesis and its volumetric concentration plays an important role in the self-assembly. The use of 30 mL acetonitrile during the mixing of the reactants AgNO3 and NH4VO3 and post hydrothermal treatment at 200 °C for 12 h result the formation of bulk cylinder like structure.  X-ray diffraction (XRD) and Scanning electron microscopy (SEM) revealed that the bulk cylinder is consolidated with ultrathin and long β-AgVO3 nanowires having minimum diameter ~16 nm and of undefined length (approximately 10 mm long). The self-assembled β-AgVO3nanowire like structure with very high surface area exhibited very high antibacterial activity against Listeria innocuaATCC 33090 and Staphylococcus aureusATCC 25923 and Escherichia coliATCC 25922, as Gram-positive and Gram-negative bacteria, respectively.
Medical Provider Recommendations to Massage Therapy: a Card Study
Authors: Mastnardo, BS, LMT Diane , Rose, MPA Jeanmarie C. , Dolata, MBA Jacqueline , Werner, PhD, MSSA James J.
Published: September 2019

Background: Communication between massage therapy patients and their medical providers has not been widely described, especially with respect to health care in the United States. Purpose: To examine which type of medical providers recommend massage therapy (MT), and how often massage therapy patients tell their providers about their treatment. Setting: Independent massage therapy practices in a Practice-based Research Network (PBRN) in Northeast Ohio.Participants: 21 licensed massage therapists (LMT). Research Design: A cross-sectional descriptive study. For consecutive, nonrepeating visits to their practices, each LMT completed up to 20 cards with information on the patient and visit. Analysis compared visits for patients based on whether they reported telling their health provider about their use of MT or being recommended for massage by a health provider.Results: Among 403 visits to 21 LMTs, 51% of patients had told their primary care clinician about seeing an LMT, and for 23%, a health-care provider had recommended visiting an LMT for that visit. Patients who told their primary care provider that they use massage therapy were more likely to be established patients, or to be seen for chronic pain complaints. Visits recommended by a physi-cian were more likely to be for chronic conditions.Conclusion: Patients who are established in the massage practice and those receiving massage for a specific condition are more likely to tell their primary care provider that they use massage and are also more likely to have been recommended for massage by a health-care provider. This information will help LMTs target and inform patients about the importance of talking with their health-care providers about their use of massage, and provide LMTs with a starting point of which types of health-care providers already recommend massage. This information will further open the dialogue about the integration of massage therapy in conventional health care.
PREDICTIVE MODEL TO THE BOND STRENGTH OF FRP-TO-CONCRETE UNDER DIRECT PULLOUT USING GENE EXPRESSION PROGRAMMING
Authors: Murad Yasmin , Ashteyat Ahmed , Hunaifat Rozan
Published: September 2019

Gene expression programming (GEP) is used in this research to develop an empirical model that predicts the bond strength between the concrete surface and carbon fiber reinforced polymer (CFRP) sheets under direct pull out. Therefore, a large and reliable database containing 770 test specimens is collected from the literature. The gene expression programming model is developed using eight parameters that predominantly control the bond strength. These parameters are concrete compressive strength, maximum aggregate size, fiber reinforced polymer (FRP) tensile strength, FRP thickness, FRP modulus of elasticity, adhesive tensile strength, FRP length, and FRP width. The model is validated using the experimental results and a statistical assessment is implemented to evaluate the performance of the proposed GEP model. Furthermore, the predicted bond results, obtained using the GEP model, are compared to the results obtained from several analytical models available in the literature and a parametric study is conducted to further ensure the consistency of the model by checking the trends between the input parameters and the predicted bond strength. The proposed model can reasonably predict the bond strength that is most fitting to the experimental database compared to the analytical models and the trends of the GEP model are in agreement with the overall trends of the analytical models and experimental tests.
Long-lived Eccentricities in Accretion Disks
Authors: Lee Wing-Kit , Dempsey Adam M. , Lithwick Yoram
Published: September 2019

Accretion disks can be eccentric: they support m = 1 modes that are global and slowly precessing. But whether the modes remain trapped in the disk—and hence are long-lived—depends on conditions at the outer edge of the disk. Here we show that in disks with realistic boundaries, in which the surface density drops rapidly beyond a given radius, eccentric modes are trapped and hence can live for as long as the viscous time. We focus on pressure-only disks around a central mass, and show how this result can be understood with the help of a simple second-order WKB theory. We show that the longest-lived mode is the zero-node mode in which all of the disk’s elliptical streamlines are aligned, and that this mode decays coherently on the viscous timescale of the disk. Hence, such a mode, once excited, could live as long as the lifetime of the disk. It may be responsible for asymmetries seen in recent images of protoplanetary disks.
A prospective pharmacovigilance study in the infectious diseases unit of a tertiary care hospital
Authors: Karaismailoglu Berna , Saltoglu Nese , Balkan Ilker Inanc , Mete Bilgul , Tabak Fehmi , Ozturk Recep
Published: September 2019

Introduction: The frequency, causality, severity, preventability and risk factors of ADRs (adverse drug reactions) in infectious disease units are not well defined in the literature. Thus, the aim of this study was to determine the characteristics of the ADRs encountered in an infectious disease unit of a tertiary teaching hospital.

Methodology: The patients who were admitted to the infectious disease unit of a tertiary teaching hospital longer than 24 hours between January and December of 2016 were followed prospectively. Patients were observed and questioned for any sign of ADRs. The proportion of ADRs and patient characteristics were investigated. Causality was evaluated by the Naranjo algorithm, severity was determined using the Hartwig classification, and preventability was assessed using the Schumock and Thornton scale.

Results: 210 patients were admitted to the unit during the study period, of whom 44 patients (20.9%) experienced 51 ADRs. 5.9% of ADRs were found to be serious according to the Hartwig severity classification. In addition, 88.1% of ADRs were not preventable. The most frequently detected ADR was skin and subcutaneous tissue reactions (33.3%), and systemic antimicrobials were the most common type of drugs that caused an ADR. Prolonged hospitalization (p < 0.001) and usage of an increased number of drugs (p < 0.001) were found to be significant risk factors for ADR development.

Conclusions: Prolonged hospital stay and polypharmacy are significant risk factors that increase the incidence of ADRs in infectious disease units. The likelihood of unavoidable ADRs should arouse the attention of clinicians when prescribing antimicrobials.
First record of the genus Oodera Westwood, 1874 (Hymenoptera, Pteromalidae, Cleonyminae, Ooderini) from the Arabian Peninsula, with the description of four new species
Authors: Soliman Ahmed M. , Gadallah Neveen S. , Al Dhafer Hathal M.
Published: September 2019

The genus Oodera Westwood, 1874 (Hymenoptera, Pteromalidae, Cleonyminae) is recorded for the first time for the Arabian Peninsula, from the Kingdom of Saudi Arabia and the Sultanate of Oman. The present study is based on specimens reared from xylophagous beetle larvae of the family Buprestidae (Coleoptera) infesting dead Acacia trees from Al-Dakhiliyah and Dhofar governorates in Oman and Al-Baha, Asir and Riyadh regions in Saudi Arabia. Four new species, Oodera arabicasp. nov., O. omanensissp. nov., O. rapuzziisp. nov., and O. similissp. nov. are described, illustrated and compared with closely related Oodera species. An illustrated key and the xylophagous host records of the species are also provided.
Karydakis procedure for sacrococcygeal pilonidal sinus disease: Our experience
Authors: Kumar N. Arun , Sutradhar Prasenjit
Published: September 2019

Aim: The purpose of this study was to evaluate patients with sacrococcygeal pilonidal sinus disease (SPSD) who underwent Karydakis procedure at our centre with reference to the perioperative findings, early and late postoperative results and recurrence. Materials and Methods: A total of 103 patients presenting with SPSD at our centre underwent Karydakis flap repair from January 2001 to December 2010. These patients were then followed-up and evaluated with respect to operative time, drain use, hospital stay, suture removal, complications, and recurrence. Results: The mean operative time was 74.9 min with a median hospital stay of 5 days. Drains were removed at a median of 7 days and sutures at a median of 15 days. Twenty-one patients presented with serous collection in the wound. Six patients had wound infection. Patients were followed-up for a median of 29 months. No recurrences were noted in any of the cases. Conclusion: Karydakis flap procedure is a relatively simple procedure for SPSD with reproducible low recurrence rates.
Axillary breast: Navigating uncharted terrain
Authors: Bhave Medha A
Published: September 2019

Introduction: Axillary breast is a common condition that leads to discomfort and cosmetic problems. Liposuction alone and open excision are two techniques used for treatment. Materials and Methods: This study assesses the results of treatment in 24 consecutive patients, operated between 2005 and 2015.All patients had Kajava class IV masses. Three were treated by liposuction alone, while 21 were treated by open axillaplasty with limited liposuction. Results: One patient treated by liposuction alone had to be re-operated for a residual lump, while with axillaplasty, no major complications were observed and the results were uniformly good. Discussion: Certain points of technique emerged as major determinants in obtaining the best results. In brief, these are: a) limited skin excision; b) placing elliptical incisions within the most lax, apical axillary skin, irrespective of the location of the lump; c) raising skin flaps at the level of superficial fascia; d)meticulous dissection and preservation of the nerves, especially the second intercostobrachial; f) judicious liposuction for eliminating dog ears and axillary sculpting only; g) avoiding drains. Conclusion: Open axillaplasty with limited liposuction is the best way to minimise complications and produce good results.
Classification of Thurston relation subfactor planar algebras
Authors: Jones Corey , Liu Zhengwei , Ren Yunxiang
Published: September 2019

Bisch and Jones proposed the classification of planar algebras by simple generators and relations. They investigated with the second author the classification of planar algebras generated by 2-boxes. In this paper, we classify singly-generated Thurston-relation planar algebras, defined as subfactor planar algebras generated by a 3-box satisfying a relation proposed by Dylan Thurston. Our main result shows that such subfactor planar algebras are either the

E_6

subfactor planar algebras or belong to a two-parameter family of planar algebras arising from the representations of type

A

quantum groups. We introduce a new method for determining positivity of the Markov trace of planar algebras in this family.
K теории оптимальных процессов в дискретных системах
Authors: Марданов Мисир Джумаил оглы , Mardanov Misir Jumail ogly , Меликов Т К , Melikov Telman K , Малик Самин Т , Melik Samin T
Published: September 2019

В работе, введя понятие $\gamma$-выпуклого множества, выделяется более широкий класс дискретных систем управлений, в котором имеет место глобальный принцип максимума. Предложен новый тип вариации управления для таких классов дискретных систем управлений, получены более сильный глобальный принцип максимума и условие оптимальности второго порядка в терминах особого управления нового типа. Обобщая понятие относительной внутренности множеств, для дискретных систем получено условие оптимальности в форме равенства, названное авторами уравнением Понтрягина. Библиография: 30 названий.
Influence of Various Flow Rates of CNG in CI Engine with Blend of Tamanu Methyl Ether and Ethanol
Authors: Parthasarathy M. , Ramkumar S. , Isaac Joshua Ramesh Lalvani J.
Published: September 2019

The petroleum fuels are continuously depleted, and they are a non-renewable source of the energy. Continuous usage of them leads to depletion of resource and an increase in global warming. Due to higher norms imposed on the fuel quality, the refining cost gets higher, and hence, obviously, the cost of the petroleum products would be higher. This leads to the search for alternate energy sources. The wide usage of CNG in the petrol engine is a common practice in the automobile sector, but the combined usage of CNG in dual fuel condition with the blend of ethanol and TME has not been practiced yet. The fuels used for this research are diesel, neat Tamanu biodiesel, blend of 10% ethanol with 90% Tamanu Methyl Ether (TMEE10) and CNG. Due to the higher compression ratio of CI engine, the usage of CNG in it will produce higher brake thermal efficiency. Due to the higher-octane rating of CNG, it wouldnâ€™t be used as fuel in CI engine. If CNG is used as a fuel in CI engine, it leads to higher knock and vibrations. Hence, it is difficult to operate the engine, but an energy share of CNG can be used in a CI engine. In this research, CNG is inducted into the engine. The flow rate is varied, such as 0.015 kg/hr., 0.026 kg/hr., 0.035 kg/hr. and 0.046 kg/hr., while the blend of biodiesel and ethanol is injected directly into the combustion chamber. Since the calorific value of TME and ethanol is less when compared to diesel, CNG is inducted to enrich the overall energy mix of the fuel. Based on the experimental investigation, it is found that the combination of TMEE10 and CNG flow rate of 0.035 kg/hr. produces higher performance and better emission characteristics.
Aspectos entoacionais no desenvolvimento da fala infantil da variedade mineira do PB
Authors: Da Silva Andressa Christine Oliveira , Fonseca Aline Alves , Gomes Barreto Sara De Oliveira
Published: September 2019

Neste trabalho, analisamos o padrão entoacional da fala de 3 crianças mineiras, com idades entre 5:9 e 6:8 anos, naturais de Juiz de Fora, falantes de Português Brasileiro (PB), a partir de questionários que simulavam situações conversacionais, nos moldes metodológicos de Frota et al. (2015). O objetivo foi investigar os contornos prosódicos – padrão entoacional, proeminência e ritmo – utilizados por elas e compará-los aos padrões entoacionais de falantes adultos da variedade mineira do PB, descritos no Interactive Atlas of Romance Intonation (PRIETO et al., 2010-2014). Os resultados das análises sugerem que as crianças adquirem os padrões entoacionais de forma gradativa, assim como adquirem os segmentos, as palavras e as estruturas sintáticas da língua.
Wet deposition of inorganic ions in 320 cities across China: spatio-temporal variation, source apportionment, and dominant factors
Authors: Li Rui , Cui Lulu , Zhao Yilong , Zhang Ziyu , Sun Tianming , Li Junlin , Zhou Wenhui , Meng Ya , Huang Kan , Fu Hongbo
Published: September 2019

Abstract. The acid deposition has been considered to be a severe environmental issue
in China. The pH, electrical conductivity (EC), and concentrations of water soluble ions (NO3-, Cl−, Ca2+, K+,
F−, NH4+, Mg2+, SO42-, and Na+) in the
precipitation samples collected from 320 cities during 2011–2016 across China were measured. The mean concentrations of F−,
NO3-, and SO42- were in the order of winter (6.10,
19.44, and 45.74 µeq L−1) > spring (3.45, 13.83, and 42.61 µeq L−1) > autumn (2.67, 9.73, and 28.85 µeq L−1) > summer (2.04, 7.66, and 19.26 µeq L−1). Secondary ions
(SO42-, NO3-, and NH4+) and F− peaked in the
Yangtze River Delta (YRD) and Sichuan basin (SB). Crustal ions (i.e.
Ca2+, Mg2+), Na+, and Cl− showed the highest
concentrations in the semi-arid regions and the coastal cities. The statistical methods confirmed that the mean anthropogenic
contribution ratios to SO42-, F−, NO3-, and
NH4+ at a national scale were 46.12 %, 71.02 %, 79.10 %, and
82.40 %, respectively. However, Mg2+ (70.51 %), K+ (77.44 %), and Ca2+ (82.17 %) mostly originated from the
crustal source. Both Na+ (70.54 %) and Cl− (60.42 %) were
closely linked to sea salt aerosols. On the basis of the stepwise
regression (SR) analysis, it was proposed that most of the secondary
ions and F− were closely related to gross industrial production
(GIP), total energy consumption (TEC), vehicle ownership, and N fertilizer
use, but the crustal ions (Ca2+ and K+) were mainly controlled by
the dust events. The influence of dust days, air temperature, and wind speed
on ions increased from southeast China (SEC) to central China, and then to
northwest China (NWC), whereas the influence of socioeconomic factors on
acid ions (SO42- and NO3-) displayed the higher value in
east China.
Quantifying Hail Size Distributions from the Sky: Application of Drone Aerial Photogrammetry
Authors: Soderholm Joshua S. , Kumjian Matthew R. , McCarthy Nicholas , Maldonado Paula , Wang Minzheng
Published: September 2019

Abstract. A new technique, named "HailPixel," is introduced for measuring the maximum dimension and intermediate dimension of hailstones from aerial imagery. The photogrammetry procedure applies a convolutional neural network for robust detection of hailstones against complex backgrounds and an edge detection method for measuring the shape of identified hailstones. This semi-automated technique is capable of measuring many thousands of hailstones within a single survey, which is several orders of magnitude larger (e.g., 10 000 or more hailstones) than population sizes from existing sensors (e.g., a hail pad). Comparison with a co-located hail pad for an Argentinan hailstorm event during the RELAMPAGO project demonstrates the larger population size of the HailPixel survey significantly improves the shape and tails of the observed hail size distribution. When hailfall is sparse, such as during large and giant hail events, the large survey area of this technique is especially advantageous for resolving the hail size distribution.
A global empirical GIA model based on GRACE data
Authors: Sun Yu , Riva Riccardo E. M.
Published: September 2019

Abstract. The effect of Glacial Isostatic Adjustment (GIA) on the shape and gravity of the Earth is usually described by numerical models that simultaneously solve for glacial evolution and Earth's rheology, being mainly constrained by the geological evidence of local ice extent and global sea level, as well as by geodetic observations of Earth's rotation. In recent years, GPS and GRACE observations have often been used to improve those models, especially in the context of regional studies. However, consistency issues between different regional models limit their ability to answer questions from global scale geodesy. Examples are the closure of the sea level budget, the explanation of observed changes in Earth's rotation, and the determination of the origin of the Earth's reference frame. Here, we present a global empirical model of present-day GIA, solely based on GRACE data and on geoid fingerprints of mass redistribution. We will show how the use of observations from a single space-borne platform, together with GIA fingerprints based on different viscosity profiles, allows us to tackle the questions from global scale geodesy mentioned above. We find that, in the GRACE era (2003–2016), freshwater exchange between land and oceans has caused global mean sea level to rise by 1.5 ± 0.3 mm/yr, the geocentre to move by 0.5 mm/yr, and the Earth's dynamic oblateness (J2) to increase by 6.7 × 10−11/yr.
Forging a Diagonal Instrument for the Global Left: The Vessel
Authors: Álvarez Rebecca , Chase-Dunn Christopher
Published: September 2019

This article takes up Samir Amin’s challenge to rethink the issue of global political organization by proposing the building of a diagonal political organization for the Global Left that would link local, national and world regional and global networks and prefigurational communities to coordinate contention for power in the world-system during the next few decades of the 21st century. The World Social Forum (WSF) process needs to be reinvented for the current period of rising neo-fascist and populist reactionary nationalism and to foster the emergence of a capable instrument that can confront and contend with the global power structure of world capitalism and aid local and national struggles. This will involve overcoming the fragmentation of progressive movements that have been an outcome of the rise of possessive individualism, the precariat, and social media. We propose a holistic approach to organizing a vessel for the global left based on struggles for climate justice, human rights, anti-racism, queer rights, feminism, sharing networks, peace alliances, taking back the city, progressive nationalism and confronting and defeating neo-fascism and new forms of conservative populism.
The Fifth International: International or Global?
Authors: Worth Owen
Published: September 2019

Worth welcomes Amin’s call for a renewal of Internationalism, but he is critical of the “significant shortcoming of understanding an internationalist strategy around a traditional collection of national struggles.” Recalling Rosa Luxemburg’s contributions to the second International at the 100th anniversary of her brutal murder, he notes: Luxemburg … condemned any form of nationalism as a tool used by the bourgeoisie in order to divide the proletariat….[F]or Luxemburg, the whole notion of dialectical materialism should be understood not through the development of existing structures but as a process where new structures emerge and develop over time. Likewise, Internationalism should not be something restricted by structures of the present, nor by pre-existing norms such as national sovereign, but instead be understood as a mechanism that could move beyond the confines of the present towards the realms of the ‘possible.’”
Singing in School Culture: Exploring Access to Participation in a Rural Choral Program
Authors: Bannerman Julie
Published: September 2019

Music programs interact in complex ways with the schools and communities in which they reside. This article explores ways that access to participation in a secondary rural choral program was impeded or enabled by facets of the school culture. Data generation for this case study included 34 hours of observation, semistructured interviews, and document analysis. Participants included the choir teacher, students in grades 7–12, parents, and school staff. Findings suggest the choir teacher’s beliefs and practices, perceived benefits to choir participation, and academic and social features of the choral program enabled participation by aligning with school and community values, including a well-rounded education, academic excellence, career exploration and college preparation, and relationships. Factors impeding access to choir participation included social meanings of singing related to gender and class and curricular programs, including the scheduling of career and technical education (CTE) and Advanced Placement (AP) courses. Students disrupted stereotypes related to class, gender, and choir participation utilizing resources such as relationships and the value of well-roundedness. Students enrolled in CTE courses missed a year of choir and other electives, while conflicts that arose between limited AP offerings and choir courses were overcome with accommodations requested by students and families and agreed to by the choir teacher. The community and school valuing of access to music for all students as part of a well-rounded education was in tension with limited resources and the value placed upon providing varied career exploration opportunities to students living in an economically depressed area.
Consequentialism and Thought Experiments in Philosophy Comes to Dinner
Authors: Lazo Robert
Published: September 2019

In this article, I review Philosophy Comes to Dinner, examining some of its persistent metaethical issues, especially some potentially controversial assumptions made by the authors and the tendency found in some to treat thought experiments as empirical experiments. The book covers arguments for different diets, the causal efficacy argument (i.e., the argument that individual food choices do not change societal food practices), feminist food ethics, harms of the food system, locavorism, and other topics. The causal efficacy argument, while not a part of all chapters in the book, is its focus, with authors arguing for and against it, and for and against various interpretations of its ethical consequences.
A Field of Dreamers on Stolen Land: Practices of Unsettling on the Recreational Softball Diamonds of Tkaronto
Authors: Fortier Craig , Hastings Colin
Published: September 2019

The game of baseball and the diamond upon which it is played function within North American society to stabilize settler colonial identities and processes. This paper draws on ethnographic research of the Field of Dreamers Cooperative Softball Association in Toronto, Ontario, to explore how this recreationalsoftball league attempts to create radical spaces of play within, against, and beyond the dominant power structures that govern social relations in a settler colonial context. This study describes the practices and processes by which the league works to unsettle their spaces of play from the national myths of baseball history and settler futurity. It also reflects on the Field of Dreamers’ endeavors to create relationships and practices that acknowledge the territories on which they play while disrupting social relations that often exclude people from organized sports and public space.
A City at the Front of Change: Technology and Urban Life in Lemberg during the First World War
Authors: Burks Drew P.
Published: September 2019

This examination of Lemberg during the First World War uses newspapers, diaries, memoirs, official proclamations, and contemporary published statistical data to explore how the relationships between the citizens of Lemberg and modern technologies changed during the war years. The citizens of the city experienced two kinds of modern technology during the war. The first, titled here mundane, involved technologies that had only recently come to the city, but that had become essential to everyday life. These included electric trams, lighting (both electric and gas), and items such as cash registers, battery powered flashlights, and sewing machines. The second type of technology, the extraordinary, consisted of technologies that provided some level of spectacle prior to the war. These included motorized transportation, airplanes, and the cinema. This article argues that the relationship between both of these categories of technology and the populace changed during the war years. Mundane technologies became even more important in the daily lives of the citizenry, while the extraordinary technologies of cars, motorcycles, and airplanes became machines of war, while the cinema became both an escape from, and a transmitter of, the realities of the war happening nearby. The article also serves as a contrast to the experiences of citizens in other Polish-speaking cities during the war.
Reviewer Acknowledgements for World Journal of English Language, Vol. 9, No. 2
Authors: Nelson Joe
Published: September 2019

World Journal of English Language (WJEL) would like to acknowledge the following reviewers for their assistance with peer review of manuscripts for this issue. Many authors, regardless of whether WJEL publishes their work, appreciate the helpful feedback provided by the reviewers. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Each of the reviewers listed below returned at least one review for this issue.Reviewers for Volume 9, Number 2 Cheryl Caesar, Michigan State University, USClaudio de Paiva Franco, Colégio Pedro II, BrazilKenan Yerli, Sakarya University, TurkeyMaría Luisa Carrió, "Departamento de Linguistica Aplicada Universidad Politécnica de Valencia", SpainMark W. Simpson, Florida Gulf Coast University, USARoberto Martínez Mateo, UNIVERSITY OF CASTILE LA-MANCHA , SpainŞenel, Müfit, 19 Mayıs University, TurkeyYu-Hsiu Liu, Huafan University, Taiwan  Joe NelsonEditorial AssistantOn behalf of,The Editorial Board of World Journal of English LanguageSciedu Press-----------------------------------------Add: 9140 Leslie St. Suite 110, Beaver Creek, Ontario, L4B 0A9, CanadaTel: 1-416-479-0028 ext. 218Fax: 1-416-642-8548Email 1: wjel@sciedupress.comEmail 2: wjel@sciedupress.orgWeb: http://wjel.sciedupress.com
Research on Classification Method of Undergraduates’ Creative Ability for Classified Teaching
Authors: Xu Yi , Ma Xiaotian , Derong Tan , Guo Cong , Guo Dong , Shao Jinju
Published: September 2019

In this paper, a quantitative system of undergraduates' creative ability is proposed through analyzing characteristics of Amabile creative theory, and the objectivity and feasibility of CAT, TTCT and AMS in creative ability quantification. The academic test scores, TTCT scores and AMS scores are used as the quantitative index of professional skills, innovation skills and task motivation in the quantitative system of undergraduates’ creative ability. Classification method of undergraduates’ creative ability using distance based K-medoids clustering method is proposed based on the quantitative system to improve the pertinence of creative ability cultivation. The feasibility and effectiveness of proposed classification method are verified by instance verification and effect analysis.
The Impact of Accounting Conservatism on Corporate Performance Indicators in Egypt
Authors: El-Habashy Hanaa A.
Published: September 2019

This study aims to investigate the impact of conservative accounting on corporate performance indicators of Egyptian firms. A sample of balanced data for the 40 most active non-financial companies was collected in the period 2009-2014 to test hypotheses. Panel regression models were used for data analysis. Givoly & Hayn (2000) indicator is used as a benchmark for measuring accounting conservatism. The corporate performance indicators used in this study are return-on-assets (ROA) and return on equity (ROE) representing accounting performance measures, as well as Tobin’s Q which measures market performance. The results of the research show that accounting conservatism has a significant positive impact on corporate performance indicators. This reflects the positive effect of corporate performance on shareholders that leads to a strong corporate financial position. To the best of our knowledge, no study has been conducted in Egypt as an emerging economy.
Network Structure in Service Ecosystems: An Empirical Study in the Region of Campania
Authors: Ferretti Marco , Panetti Eva , Parmentola Adele , Sabetta Annamaria
Published: September 2019

The objective of this study is that of exploring the relational dimension of service ecosystems with specific regard to the structure of their networks, by conducting a social network analysis. In particular, this work attempts to primarily unveil which types of network configurations (i.e., open, closed or small words) are typical of service ecosystems. Secondly, we explore the nature of the most central actors in these networks. To these purposes, we conduct an empirical study in the Region of Campania (Southern Italy) by analyzing six regional service ecosystems in different sectors. We gathered data from the PONREC platform (Programma Operativo Nazionale "Ricerca e Competitività" 2007-2013) in order to map links among the actors in all six ecosystems. Main results show that universities and research institutions occupy brokering positions within the service ecosystems’ networks. This, in turn, suggests the efficacy of public regional initiatives in favoring the establishment of forms of collaboration between organizations of different nature. Finally, our findings show that service ecosystems are characterized by open and small world network configurations. This paper contributes to the literature focused on service ecosystems’ networks by providing an empirical and quantitative approach to the analysis of their relational characteristics.
Inverse Problems for Sturm-Liouville Differential Operators on Closed Sets
Authors: Yurko V.
Published: September 2019

Second-order differential operators on closed sets (time scales) are considered. Properties of their spectral characteristics are obtained and inverse problems are studied, which consists in recovering the operators from their spectral characteristics. We establish the uniqueness and develop constructive algorithms for the solution of the inverse problems.
Kompetencje zawodowe w kontekście zasad komunikacji dydaktycznej i możliwości oceny pracy nauczycieli
Authors: Mydłowska Beata
Published: September 2019

The article is a voice in the discussion about the conditions of pedagogical professionalism in the context of not only understanding professional duties, but also constantly improving the quality of one’s competences and boldly going beyond the patterns in one’s duties. Among many proposals and different types of classifications, the author offers a new kind of perspective – pointing to the essence of teacher competence development as a complex, multistep and varied process, she suggests referring to the style of operation and the use of specific didactic means of communication by a particular teacher. The author of the article points to the coexistence of diverse competences and focuses on the long-existing concept of key competences, with particular emphasis on the complexity of competences related to communication in school situations. The author’s intention is to create a clear and precise competence structure, facilitating the recruitment process and evaluation of teachers’ work. The competence model is treated here as a tool that is widely used in human resources management in educational institutions.
THE INFLUENCE OF PRELOAD IN RELATION WITH LOAD
ON A SYSTEM OF ANGULAR BALL BEARINGS
Authors: Kaczor Jarosław
Published: September 2019

A proper preload has a decisive influence on the correct work of a system of bearings. According to specialist
literature [L. 1, 2, 8, 12], the main benefits of preload application are the following: increasing the stiffness of
a system of bearings, reducing noise during work, increasing the precision of the shaft driving, compensation
for the wear and settle processes during work, and thus assurance of a longer life of the system.
The aim of the study is to determine how application of preload influences the operation of angular bearings,
i.e. their durability, stiffness, and friction. The influence of preload will be expressed in a relative way: through
variations of ratios.
RESEARCH INTO THE INFLUENCE OF SELECTED PARAMETERS
ON CRITICAL SPEED OF THRUST BEARING WITH THE
MAGNETORHEOLOGICAL FLUID
Authors: Szczęch Marcin , Horak Wojciech
Published: September 2019

Magnetic fluids are substances with a complex physicochemical composition. The unique properties of
these substances are based on the possibility of reversible, almost immediate, changes in their rheological
parameters, as well as changes in the flow direction due to the magnetic field. These properties allow the
development of machines and devices with operating parameters that can be changed by the magnetic field.
The range of the fluid property changes depends on its composition, magnetic field parameters, operating
conditions, and the method of fluid deformation.
The paper presents the results of research into the influence of selected parameters on the critical speed of
thrust sliding bearings. These parameters include the magnetic and physical properties of magnetic fluids, the
value of the magnetic induction, the fluid volume in the working gap, and the temperature. The results of the
conducted research indicate a significant effect of the magnetic field gradient on the critical speed value.
Resgate das relações abusivas em que nos encontramos: uma questão de prevenção quinquenária
Authors: Santos José Agostinho
Published: September 2019

O conceito da prevenção quinquenária coloca a qualidade de vida dos profissionais na perspectiva dos cuidados prestados ao paciente. Os dados relativos à prevalência da síndrome de burnout entre os profissionais de saúde têm sido considerados preocupantes. Este artigo coloca a possibilidade de a condição-base essencial para o surgimento do burnout ser a integração em relações abusivas, isto é, relações caracterizadas por desigualdade entre os dois polos e em que não há oportunidade para os profissionais ativarem os seus papéis de expressão, criatividade, reconhecimento ou autoconhecimento em cada momento. Profissionais que se conhecem, reconhecidos, que expressam livremente as suas ideias e necessidades serão, provavelmente, profissionais que tomarão decisões mais assertivas, ponderadas e com menos erros no cuidado do próximo.
Geoecological Situation in Land Use
Authors: Samoilenko Viktor , Dibrova Ivan
Published: September 2019

The principles for the construction of the scale of geoecological situation in land use were substantiated. This situation is based on the parameter of landscape anthropization extent. The parameter was called a geosituation index. Such index is the area proportion for geoecological positive (or geo-positive) and geoecological negative (or geo-negative) land use and/or land cover (LULC) systems. The first systems are still called in essence nature-accentuated, near-to-nature or simply natural systems. Percents of geo-positive LULC systems' area are also used as a separate parameter additional to the geosituation index. The scale of geosituation concerning land use in model landscapes or other territorial units was developed. Such scale for the first time has the logic-parametric consistency with previously developed scheme of the landscape anthropization extent. The geosituation is classified in the scale by categories. They vary from excessively favorable to catastrophic category. The developed geosituation scale was implemented for the selected megaregion. It includes Ukrainian physic-geographic zones of mixed and broad-leaved forests and forest-steppe and their regions, areas and districts. The digital choropleths were modeled for the geosituation in land use in the areas and districts. The all obtained results indicated the validity and further implementation suitability of proposed geosituation indexes and their scale. The developed approaches can be applied in the territorial schemes and projects of modern environmental management.   Keywords: land use, anthropization, landscape, geoecological situation, near-to-nature systems
Die Digitalisierung als Herausforderung für die persönliche Integrität
Authors: Schank Christoph
Published: September 2019

Die Digitalisierung nahezu aller Lebensbereiche trägt zunehmend ideologische Züge. Während ungeahnte Effizienzgewinne erzielt werden, zerfällt der Mensch immer rückstandsloser in Datenströme, die sich planvoll erheben, verarbeiten und für ausgefeilte Kontroll- und Bewertungssysteme heranziehen lassen. Diese algorithmenbasierten Entscheidungssysteme bergen jedoch das Potenzial, die persönliche Integrität des Einzelnen entscheidend herauszufordern und damit den Weg in einen digitalen Taylorismus zu ebnen.
Emerging Artificial Two-Dimensional van der Waals Heterostructures for Optoelectronics
Authors: Ruan Hongcheng , Huang Yu , Chen Yuqian , Zhuge Fuwei
Published: September 2019

Two-dimensional (2D) materials are attracting explosive attention for their intriguing potential in versatile applications, covering optoelectronics, electronics, sensors, etc. An attractive merit of 2D materials is their viable van der Waals (VdW) stacking in artificial sequence, thus forming different atomic arrangements in vertical direction and enabling unprecedented tailoring of material properties and device application. In this chapter, we summarize the latest progress in assembling VdW heterostructures for optoelectronic applications by beginning with the basic pick-transfer method for assembling 2D materials and then discussing the different combination of 2D materials of semiconductor, conductor, and insulator properties for various optoelectronic devices, e.g., photodiode, phototransistors, optical memories, etc.
Single-Photon Frequency Conversion for Quantum Interface
Authors: Li Yuanhua , Chen Xianfeng
Published: September 2019

Single-photon frequency conversion for quantum interface plays an important role in quantum communications and networks, which is crucial for the realization of quantum memory, faithful entanglement swapping and quantum teleportation. In this chapter, we will present our recent experiments about single-photon frequency conversion based on quadratic nonlinear processes. Firstly, we demonstrated spectrum compression of broadband single photons at the telecom wavelength to the near-visible window, marking a critical step towards coherent photonic interface. Secondly, we demonstrated the nonlinear interaction between two chirped broadband single-photon-level coherent states, which may be utilized to achieve heralding entanglement at a distance. Finally, we theoretically introduced and experimentally demonstrated single-photon frequency conversion in the telecom band, enabling switching of single photons between dense wavelength-division multiplexing channels. Moreover, quantum entanglement between the photon pair is maintained after the frequency conversion. Our researches have realized three significant quantum interfaces via single-photon frequency conversion, which hold great promise for the development of quantum communications and networks.
Vector-borne zoonotic pathogens in cats
Authors: Razgūnaitė Miglė , Radzijevskaja Jana , Sabūnas Vytautas , Karvelienė Birutė , Paulauskas Algimantas
Published: September 2019

Cats and dogs are the most popular pets. However, pets can transmit various pathogens and their close proximity to humans may lead to human infections – zoonoses. Transmission of zoonotic pathogens occurs through direct human-animal contact and/or arthropod vectors, such as ticks, fleas, mosquitoes, etc. The emergence of vector-borne zoonotic diseases may occur through international movement of owners with companion animals, which could be infected with pathogens and through spreading and subsequent establishment of disease vectors from endemic to non-endemic areas. The complex ecology of vector-borne zoonotic infections poses both a challenge to and opportunities for surveillance and control. Rising occurrence of vector-borne zoonotic diseases, their relevance to human health, and the relative lack of scientific researches related to feline VBDs point to the necessity to summarize and systemize information on the prevalence of agents of these diseases in populations of domestic cats. This review describes the main vector-borne zoonotic diseases in cats and provides an overview of the main pathogens isolated from cats, which have the potential to cause diseases in cats and humans.