bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of tensile properties of worn fabric conveyor belts with renovated cover and with the different carcass type
Authors: Andrejiova Miriam , Grincova Anna , Marasova Daniela
Published: June 2020

Conveyors are the means of transportation used in many industries. The load-bearing and tractive component of a belt conveyor
is a conveyor belt which consists of a carcass and cover layers. During an operation, belts are exposed to loads that cause damage
to the belts. It is therefore necessary to ensure that a conveyor belt possesses required mechanical properties during the transport
of material. The key mechanical properties of a conveyor belt are tensile properties. They are significantly affected by the fabric
carcass of a conveyor belt. The tensile properties of conveyor belts are largely affected by the carcass materials. They are also
affected by the types of fibres in the longitudinal (warp) and transverse (weft) directions of the fabric carcass because the carcass
transfers all tensile stresses of the conveyor belt. A fabric conveyor belt is regarded as a composite material, consisting of the carcass (polyamide P and polyamide-polyester EP) and the cover layers. The costs of a conveyor belt represent 10-30 % of the price
of the entire conveyor. It is therefore reasonable to prefer only those conveyor belts that show the properties prescribed by relevant
norms. The subject of the article is worn conveyor belts with renovated top cover (renovated conveyor belts). The tensile properties
are used to assess the suitability for further use of renovated conveyor belts in practice. The article presents the analysis of tensile
properties of renovated fabric conveyor belts in relation to the carcass type. The observed results were compared applying the
DOE method, regression and correlation analysis, and the method of statistic induction. All the conclusions, made based on the
above-listed methods, are identical for the examined tensile properties. The results indicate that the examined tensile properties of
conveyor belts have not undergone any significant change after the renovation of the top cover layer.
Modeling of vibroacoustic phenomena using the method of parameterizing the audio signal
Authors: Paszkowski Waldemar
Published: June 2020

The article proposes an original way of modeling vibroacoustic phenomena of exploited machines/devices using the method of audio parameterization. This method extends the current approach to this type of research and consists in taking into account the psychoacoustic effects associated with the emission of vibroacoustic energy. The proposed solution is based on the determination of mel-cepstral coefficients of the examined signal and its classification, due to the impact of noise. It was presented verification of the method on the example of studies on the impact of road noise sources.
Worm gear condition monitoring and fault detection from thermal images via deep learning method
Authors: Karabacak Yunus , Gürsel Özmen Nurhan , Gümüşel Levent
Published: June 2020

Worm gearboxes (WG) are often preferred, because of their high torque, quickly reducing speed capacity and good meshing effectiveness, in many industrial applications. However, WGs may face with some serious problems like high temperature at the
speed reducer, gear wearing, pitting, scoring, fractures and damages. In order to prevent any damage, loss of time and money, it
is an important issue to detect and classify the faults of WGs and develop the maintenance plans accordingly. The present study
addresses the application of the deep learning method, convolutional neural network (CNN), in the field of thermal imaging that
were gathered from a test rig operating on different loads and speeds. Deep learning approaches, have proven their powerful capability to exploit faulty information from big data and make intelligently diagnostic decisions. Studies concerning the condition
monitoring of WGs in the literature are limited. This is the first study on WGs with infrared thermography rather than vibration
and sound measurements which have some deficiencies about hardware requirements, restricted measurement abilities and noisy
signals. For comparison, CNN was also trained, with vibration and sound data which were collected from the healthy and faulty
WGs. The results of fault diagnosis show that thermal image based CNN model on WG has achieved 100% success rate whereas
the vibration performance was 83.3 % and sound performance was 81.7%. As a result, thermal image based CNN model showed
a better diagnosing performance than the others for WGs. Moreover, condition monitoring of WGs, can be performed correctly
with less measurement costs via thermal imaging methods.
Industrial gas turbine operating parameters monitoring and data-driven prediction
Authors: Pawełczyk Maciej , Fulara Szymon , Sepe Marzia , De Luca Alessandro , Badora Maciej
Published: June 2020

The article reviews traditional and modern methods for prediction of gas turbine operating characteristics and its potential failures. Moreover, a comparison of Machine Learning based prediction models, including Artificial Neural Networks (ANN), is presented. The research focuses on High Pressure Compressor (HPC) recoup pressure level of 4th generation LM2500 gas generator
(LM2500+G4) coupled with a 2-stage High Speed Power Turbine Module. The researched parameter is adjustable and may be
used to balance net axial loads exerted on thrust bearing to ensure stable gas turbine operation, but its direct measurement is
technically difficult implicating the need to indirect measurement via set of other gas turbine sensors. Input data for the research
have been obtained from BHGE manufactured and monitored gas turbines and consists of real-time data extracted from industrial
installations. Machine learning models trained using the data show less than 1% Mean Absolute Percentage Error (MAPE) as
obtained with the use of Random Forest and Gradient Boosting Regression models. Multilayer Perceptron Artificial Neural Networks (MLP ANN) models are reviewed, and their performance checks inferior to Random Forest algorithm-based model. The
importance of hyperparameter tuning and feature engineering is discussed.
A novel test case prioritization method based on problems of numerical software code statement defect prediction
Authors: Shao Yuanxun , Liu Bin , Wang Shihai , Xiao Peng
Published: June 2020

Test case prioritization (TCP) has been considerably utilized to arrange the implementation order of test cases, which contributes
to improve the efficiency and resource allocation of software regression testing. Traditional coverage-based TCP techniques, such
as statement-level, method/function-level and class-level, only leverages program code coverage to prioritize test cases without
considering the probable distribution of defects. However, software defect data tends to be imbalanced following Pareto principle.
Instinctively, the more vulnerable the code covered by the test case is, the higher the priority it is. Besides, statement-level coverage is a more fine-grained method than function-level coverage or class-level coverage, which can more accurately formulate
test strategies. Therefore, we present a test case prioritization approach based on statement software defect prediction to tame
the limitations of current coverage-based techniques in this paper. Statement metrics in the source code are extracted and data
pre-processing is implemented to train the defect predictor. And then the defect detection rate of test cases is calculated by combining the prioritization strategy and prediction results. Finally, the prioritization performance is evaluated in terms of average
percentage faults detected in four open source datasets. We comprehensively compare the performance of the proposed method
under different prioritization strategies and predictors. The experimental results show it is a promising technique to improve the
prevailing coverage-based TCP methods by incorporating statement-level defect-proneness. Moreover, it is also concluded that
the performance of the additional strategy is better than that of max and total, and the choice of the defect predictor affects the
efficiency of the strategy.
Maintenance policy for oil-lubricated systems with oil analysis data
Authors: Yan Shufa , Ma Biao , Wang Xu , Chen Jianhua , Zheng Changsong
Published: June 2020

Maintenance of oil-lubricated systems plays a significant role in reducing unexpected system failures and improving machine
availability. This paper deals with the oil-lubricated systems subject to gradual degradation that revealed by metal wear debris
monitored using oil analysis. Oil-lubricated systems usually undertake several preventive maintenances during operation, after
each maintenance, the system typical restores to an intermediate state between good-as-new state and bad-as-old state due to
system aging such as cumulative wear. Furthermore, oil-lubricated systems often operate continuously in mission execution with
availability constraints. However, existing literature still lacks a method to integrate the availability constraints with the system
aging into the cause of optimizing the maintenance policy. To fill this gap, this paper develops a maintenance policy optimization
method to determine the optimal maintenance threshold joint considering the availability constraints and the system aging. A case
study of the power-shift steering transmission systems modelled by a wiener process is presented to illustrate the proposed method
in practical application.
“THEY ARE ONE SNAPS WISHING …” T. SHEVCHENKO AND P. KULISH
Authors: Zadorozhna S. V.
Published: June 2020

The article exposes the commonality of ideological and artistic positions of T. Shevchenko and P. Kulish, their personal and creative dialogue. Shevchenko and Kulish’s poetic works, their correspondence, as well as interpretative assessments of national and diaspora scholars of different years served as a material for reflection. The author proposes a new conceptual vision of the stated topic, supplemented by an existing literary commentary.
“CHORNA RADA” BY PANTELEIMON KULISH IN YURIY LAVRINENKO’S RADIO JOURNALISM “LITERARY WORLD”
Authors: Kononchuk M. M.
Published: June 2020

The article deals with the forbidden in the Soviet times novel of the Ukrainian classical writer Panteleymon Kulish (1819–1897) “Chorna Rada” to which the series of radio broadcasts by renowned cultural scientist and literary critic Yuriy Lavrinenko (1905–1987) in the “Literary World” project on the radio “Svoboda” (Liberty) in New York in the 60th of the XX century was dedicated. The journalistic heritage of Yuri Lavrinenko is an interesting phenomenon in the history of journalism of the Ukrainian diaspora. In his radio programs, he spoke about many Ukrainian writers – the 19th and 20th centuries, such as Ivan Franko, Lesia Ukrayinka, Panas Myrny, Vasyl Stefanyk, Stepan Vasylchenko, Pavlo Tychyna, Mykola Vorony, Mykola Kulish, Mykola Khvyliovy, Andriy Malyshko, Dmytro Pavlychko, Vasyl Symonenko, Lina Kostenko, Vasyl Stus, Svitlana Yovenko, Valery Shevchuk and others. He spoke about the peculiarities of artistic texts and the political position of the authors. These programs were very valuable because they carried the truth into the world about Ukraine, Ukrainian culture and Ukrainians. Yuri Lavrinenko prepared many programs about Taras Shevchenko – a great citizen of Ukraine, famous poet and artist. After him, Yuri Lavrinenko devoted most of his radio programs about Panteleimon Kulish. These programs draw attention to the severity of the problems and the courage to be open and to solve them.
Girl’s Education in Africa
Authors: Hobbs Hadley Olivia
Published: June 2020

Why is girls' education participation notably below average in countries
throughout both North and Sub-Saharan Africa? Previous research has concluded that
the low rates of girls' education in Africa are attributed to economics and
more specifically wealth. While wealth needs to be addressed as a part of the discussion
of issues surrounding girl's education, it does not seem to be the primary cause
of low participation outcomes. I argue that culture and governance are the primary factors
effecting girls' education in Africa. Moreover, government effectiveness and female
genital mutilation are primary causes of the outcomes of girl's education and appear
to diminish the effects of wealth.
Effectiveness of vaginal analgesic electrostimulation versus sacral electroacupuncture in chronic pelvic pain of myofascial origin
Authors: Ochoa Cristóbal B. , Reyes Guadalupe G. , M. Marin Claudia Monserrat , A. Quispe Vianey Brigida , Gonzalez Adrian G. , Velázquez Ricardo H. , Guerrero Alejandra Aguirre
Published: June 2020

Background: Chronic pelvic pain (CPP) of myofascial origin is a condition that is difficult to control and with great repercussion on the quality of life for women who suffer from it. This study objective was to compare the effectiveness of two treatments for the management of this pathology; vaginal analgesic electrostimulation (VES) versus sacral electroacupuncture (EAS).Methods: Quasi-experimental comparative study of two treatments in patients with myofascial CPP. The sample was made up of women who presented this condition during the period 2016 to 2019. The main objective was to assess the effectiveness of the treatments in comparison in terms of the decrease in the VAS score, the secondary ones were: To know the effectiveness of the VES for pain chronic pelvic myofascial (MFPP), the effectiveness of EA for the same condition, complications of therapies, main urological dysfunctions and other chronic pelvic pain associated with myofascial CPP.Results: Thirteen thousand patient files were reviewed, of which 47 were diagnosed with myofascial CCP, with 38 patients eligible for our study. The VES was more effective than the EAS in decreasing the VAS in the twelfth session from 1.36 versus 2.62 p .001. Both therapies were effective for the management of myofascial DCP as they decreased the VAS score to more than 60% of the initial VAS. Vulvodynia (34%), mixed urinary incontinence (32%), and voiding symptoms (26%) were other pelvic floor dysfunctions that presented concomitantly to the MFPP.Conclusions: In patients with myofascial CPP, vaginal VES is better than AD for the treatment of this condition.
Zakres odpowiedzialności małżonka za zobowiązania podatkowe małżonka-podatnika
Authors: Gierlińska Aleksandra
Published: June 2020

Celem niniejszego artykułu jest omówienie odpowiedzialności małżonka za zobowiązania podatkowe współmałżonka. Główną przesłanką odpowiedzialności małżonka jest istnienie pewnego związku ekonomicznego między nim a podatnikiem. W zależności od istnienia konkretnych okoliczności zakres tej odpowiedzialności jest różny. Najszerszy zakres omówionych odpowiedzialności dotyczy odpowiedzialności małżonka pozostającego z podatnikiem w ustroju wspólności ustawowej. Odmiennie kształtuje się odpowiedzialność za zobowiązania podatkowe w sytuacji ustanowienia rozdzielności majątkowej między małżonkami. Ostatnim omówionym w treści artykułu rodzajem odpowiedzialności podatkowej jest odpowiedzialność po śmierci jednego z małżonków. Małżonek będący spadkobiercą wstępuje wówczas w miejsce spadkodawcy, stając się podatnikiem, co jest podstawową cechą różniącą ten rodzaj odpowiedzialności od pozostałych.

Szczególny charakter przedstawionego zagadnienia wynika z faktu, że odpowiedzialność za zobowiązania podatkowe ponoszą osoby nie będące podmiotami żadnych obowiązków wynikających z prawa podatkowego związanych z poborem podatków. Istnienie tej odpowiedzialności oznacza dla wierzyciela poszerzenie kręgu podmiotów, od których może żądać wykonania zobowiązania, które to zobowiązanie ciążyło pierwotnie wyłącznie na podatniku.
Wpływ przejęcia długu na hipotekę ustanowioną przez dłużnika na użytkowaniu wieczystym. Glosa do uchwały Sądu Najwyższego z dnia 28 marca 2019 roku, sygn. akt III CZP 90/18
Authors: Wolak Grzegorz
Published: June 2020

W glosie do uchwały z dnia 28 marca 2019 r., III CZP 90/18, autor zaaprobował stanowisko Sądu Najwyższego wyrażone w jej tezie, zgodnie z którym hipoteka ustanowiona przez dłużnika na użytkowaniu wieczystym nie wygasa z chwilą przejęcia długu, gdy użytkowanie wieczyste zostało zbyte na rzecz osoby trzeciej (art. 525 k.c.). Przemawia za nim nie tylko wzgląd na argument wykładni językowej, ale także funkcjonalnej (celowościowej). Ponadto odwołanie się do przepisów zwiększających ochronę dłużnika rzeczowego poprzez wprowadzenie wymogu uzyskania jego zgody na zmiany zabezpieczonej wierzytelności, tj. art. 248 k.c. oraz art. 684 ustawy z dnia 6 lipca

1982 r. o księgach wieczystych i hipotece również nie pozwala uznać za słuszne przeciwstawnego zapatrywania, za którym opowiadał się sąd odwoławczy.
Uznanie produktu ubocznego pochodzenia zwierzęcego za odpad – kryteria i skutki
Authors: Haładyj Anna
Published: June 2020

W Państwach Członkowskich UE rocznie powstaje ponad 20 milionów ton produktów ubocznych pochodzenia zwierzęcego (PUPZ), z czego w Polsce ok. 2 miliony ton40. Ich niezgodne z prawem zagospodarowanie może mieć negatywny wpływ na bezpieczeństwo sanitarno-weterynaryjne w kraju, poprzez możliwość rozprzestrzeniania chorób zwierzęcych (np. gąbczastych encefalopatii – BSE wywołujących u ludzi chorobę Creutzfelda-Jakoba) lub zanieczyszczeń chemicznych (np. dioksyny). Przepisy UE regulują ich przemieszczanie, przetwarzanie i usuwanie poprzez konieczność wpisu do rejestru działalności związanej z powstawaniem lub przetwarzaniem PUPZ. Ale w niektórych przypadkach PUPZ są traktowane jako odpady (nie tracąc swego pierwotnego charakteru), co sprawia, że na ich posiadaczy nałożone są dodatkowe obowiązki wynikające z przepisów prawa odpadowego.

Celem opracowania jest odpowiedź na pytanie o sposoby, kryteria i skutki kwalifikacji PUPZ jako odpadów, a także i skutki kwalifikacji w obszarze wymogów dotyczących transportu i unieszkodliwiania bądź przetwarzania tych substancji w zależności od wyniku kwalifikacji.
RELAÇÃO DA ESTRATÉGIA COMO PRÁTICA SOCIAL PARA A CONSTRUÇÃO DE INDICADORES NO PILAR SOCIAL DA SUSTENTABILIDADE ORGANIZACIONAL
Authors: Sierdovski Marcia , Stefano Silvio Roberto , Andrade Sandra Mara de
Published: June 2020

A estratégia como prática social dentro das organizações analisa as rotinas, os comportamentos, os hábitos e os costumes da organização para com as pessoas. Uma carência de estudos foi identificada na definição de indicadores de análise do pilar social, e a importância do estudo, é buscar trazer reflexões de indicadores que podem ser analisados, a partir das práticas sociais realizadas. Assim, o problema de pesquisa investiga: qual a relação da estratégia como prática social para o desenvolvimento de indicadores de análise no pilar social da sustentabilidade organizacional nas 150 melhores empresas para se trabalhar no Brasil? Na qual o objetivo principal de pesquisa foi analisar como a estratégia como prática social pode contribuir para o desenvolvimento de indicadores de análise no pilar social da sustentabilidade organizacional nas 150 melhores empresas para se trabalhar no Brasil. A pesquisa se caracteriza como descritiva, com abordagem quantitativa, e com a coleta de dados realizada por meio de questionários enviados para os colaboradores com uma amostra de 62.803 participantes. Os resultados dos testes estatísticos apontam que a estratégia como prática social na visão dos pesquisados contribui para tornar a vida melhor. Nos testes de correlação de Spearman se comprovou que as variáveis analisadas se apresentam positivas quanto aos seus coeficientes de correlação. As contribuições teóricas e metodológicas do estudo estão direcionadas para a relação positiva que existe entre as práticas sociais e a definição de indicadores no pilar social que realmente analisem a satisfação e bem-estar dos colaboradores.
Pengaruh Self Regulated Learning Dan Pola Asuh Orang Tua Terhadap Prokrastinasi Akademik Mahasiswa
Authors: Chotimah Chusnul , Nurmufida Lukluk
Published: June 2020

Procrastination is a tendency to delay the completion of tasks by doing other activities that are not useful so that the task becomes obstructed, not completed on time, and often too late. These academic tasks include the task of writing papers, reading, studying exams, attending meetings (lectures), administrative duties, and overall academic performance. This study aims to determine the effect of self-regulated learning, parenting styles, and the enrollment years on the academic procrastination of the student of Faculty of Tarbiyah and Teaching Science IAIN Tulungagung. This was an ex-post facto study employing the quantitative approach. The research population comprised students of the Faculty of Tarbiyah and Teaching Science IAIN Tulungagung, in the enrolment years of 2017-2018 with a total of 3,728 students. The sample was using the proportionate stratified random sampling technique. The data were collected through questionnaires, and documentation, they were analyzed by means of the multiple regression technique. The results of the study at a significance level of 5% are as follows; There is a significant negative effect of the self-regulated learning on the academic procrastination indicated by a regression coefficient of -0.601 (p0.05). There is a significant negative effect of the authoritative parenting style on the academic procrastination, indicated by a regression coefficient of -4.082 (p0.05). The negative regression coefficient indicates that the academic procrastination due to the authoritative parenting style is lower than that due to the permissive parenting style. The study also shows that the student in the enrolment years of 2015 has a significant positive effect on the academic procrastination, indicated by a regression coefficient of 2.381 (p0.05). Meanwhile, the student in the enrolment years of 2012 indicates a significant positive effect on the academic procrastination with a regression coefficient of 2.112 (p0.05). And there is a significant effect of self-regulated learning, parenting styles, and enrolment years as an aggregate on the academic procrastination, indicated by a determination coefficient (R2) of 0.474 (p0.05).
Comunicación publicitaria en medios digitales
Authors: Ortíz Rodríguez Herlinda
Published: June 2020

La gestión de la Responsabilidad Social Organizacional (RSO) dentro de las Organizaciones del Tercer Sector (OTS) permite que se proyecten como organizaciones éticas y congruentes comprometidas con sus públicos, el entorno y la comunidad. La comunicación publicitaria en medios digitales favorece una adecuada gestión estratégica de la RSO para sensibilizar a sus públicos y obtener su apoyo. En esta investigación se analiza si las OTS de México, Chile, España e Inglaterra utilizan la comunicación publicitaria en sus páginas web para dar a conocer el modo en que asumen la RSO. Se miden tres variables de la RSO: comportamiento ético, medio ambiente y cambio climático y contribución a la comunidad, mediante un análisis de contenido. Los resultados muestran que las OTS de Inglaterra son las que más utilizan este tipo de comunicación publicitaria para dar a conocer sus acciones de RSO en comparación con las de México. No obstante, las organizaciones de los cuatro países tienen retos importantes para fortalecer su RSO y su comunicación publicitaria digital. Principalmente deben comprender que la correcta gestión de RSO y de la comunicación publicitariaen medios digitales fortalece su reputación y confianza con sus públicos.
Interdisciplinary Collaborative Research for Professional Academic Development in Higher Education
Authors: Johnston Elizabeth , Burleigh Cheryl , Wilson Andrea
Published: June 2020

Although faculties are more diverse, decentralized, and increasingly isolated in technology-supported modern universities, effective technology use can also foster faculty professional academic development and collegiality. This scoping literature review applied Cooper’s systemic review model and a categorical content analysis technique targeting decentralized collaborative research teams in higher education. Findings indicate technology supports formal and informal university and nonuniversity networks, as well as various collaborative research structures; all contributing to professional academic development. Shared attributes of successful collaborative online teams include a sense of social presence, accountability, institutional and team leadership. Collaborative teams are integral to research and allow more faculty members to contribute and benefit from professional academic development through scholarship. Collaborative team research should be investigated further to understand and promote cross-discipline and cultural collaboration potential for research and professional academic development possibilities with special attention given to opportunities for women, online, and adjunct faculty
The Commission on Rehabilitation Counselor Certification Code of Ethics: An Emerging Approach to Digital Technology
Authors: Hartley Michael T. , Bourgeois Paul J.
Published: June 2020

Background

Rehabilitation counselors are becoming more adept at providing distance services.

Objective

Focused on the ethical use of digital technology, the purpose of this article is to highlight ethical considerations when using digital technologies professionally.

Methods

Reviewing the ethical standards of the 2017 Code of Professional Ethics for Rehabilitation Counselors, this article examines the current ethical standards governing the use of technology, distance counseling, and social media.

Findings

It is critical for rehabilitation counselors to understand how affordances and constraints of technology will continue to mediate the professional practice of rehabilitation counseling.

Conclusion

The professional practice of rehabilitation counseling will increasingly involve digital technology.
Collegiate Recovery Programs: Helping College Students in Recovery Succeed
Authors: Reed Bruce J. , Almaguer-Botero Andrea P. , Grizzell Saara , Watts Justin
Published: June 2020

College recovery services are designed to provide necessary supports for college students with issues related to substance use disorders to be successful in postsecondary education. However, as a still emerging form of student supports, major issues remain such as funding, the utilization of evidence-based interventions, effective program evaluations, and the need for more empirical research. This article provides a historical overview of Collegiate Recovery Programs (CRPs) and an examination of current issues facing the field; it concludes with recommendations for program administrators, researchers, and rehabilitation counselors.
Strategi Branding Pengembangan Industri Pariwisata 4.0 Melalui Kompetitif Multimedia di Era Digital
Authors: Isdarmanto Isdarmanto
Published: June 2020

Role of information technology in the development of tourism in the current era of globalization has a very important role in particular the marketing program of tourism branding products from every region throughout Indonesia. Dissemination of information uploaded in the internet media from the growth of tourist destinations and regional tourism attractions is easily spread throughout the world. Through internet video, images and news can quickly and effectively be accepted by every individual. Every company organization by accessing internet media can take advantage of their business opportunities, through various features and programs that are applied in multimedia, giving many choices which are effectively used. Business marketing branding can be uploaded and promoted faster according to market share. The tourism industry 4.0 is a challenge for every country in the world to compete in increasing the role of human resources in the tourism industry through the digital era. The more digital the professional, the more digital the more global. This study uses qualitative research that enables and understands the problem of deepening. The purpose of this study is to determine the multimedia implications of communication technology in building branding as a major factor synchronizing the development of the Tourism industry 4.0. The development of branding through multimedia programs will be very effective throughout the world in the concept of institutional or corporate positioning and must be managed properly.
THE CRITIQUES AND IDEOLOGIES SHARED IN THE INAUGURATION SPEECH OF DONALD TRUMP (A STUDY OF CRITICAL DISCOURSE ANALYSIS)
Authors: Hizbullah Imron , Al Makmun Muhammad Taufiq
Published: June 2020

This paper investigates the Critical Discourse Analysis (CDA) in studying the inauguration speech of Donald Trump at the Capitol Hill, Washington DC on January 20, 2017. The objective of the study is to uncover the hidden messages regarding ideologies shared and critiques appointed to Obama’s presidency. The paper uses the theory of CDA by Norman Fairclough by focusing on the three aspects of research which are (1) micro or linguistic analysis, (2) Mezzo or discursive analysis, and (3) macro or contextual analysis. The three dimensional model of CDA is aimed to uncover the ideologies shared and critiques appointed to based on linguistic features, socio-political aspect, and discursive practice. The American Dream is represented in seven issues risen which are (1) US economic condition during Obama’s presidency, (2) US political condition during Obama’s presidency, (3) US social condition during Obama’s presidency, (4) The concept of making America great again, (5) Anti-radical Muslim immigrants, (6) America First, and (7) Nationalism. The result of the study reveals that the speech brought some ideologies or thoughts shared to the audiences and might change the people’s perception on Obama’s two periods of presidency who is considered as failure.
Preserving the Knee in the Setting of High Segmental Tibial Bone and Massive Soft-Tissue Loss Using Vascularized Distal Tibial Bone Docking and a Foot Fillet Flap
Authors: Metoyer Garyn T. , Anderson Spencer R. , Horne Brandon R. , Mancho Salim N. , Wimalawansa Sunishka M.
Published: June 2020

Case:

We discuss our reconstructive approach to avoid an above-knee amputation in a 33-year-old man presenting after lower extremity crush injury. We used a vascularized tibial bone flap and a foot fillet flap to restore length and joint functionality to the residual limb. The patient ambulates with good prosthetic fit on durable heel pad skin and 100° active knee motion.

Conclusion:

This pairing of intramedullary nail with vascularized bone flap and fillet flap to address soft-tissue coverage and retain limb length is a useful tool in traumatic lower extremity injury management, providing an alternative technique for tibial bone graft stabilization with robust, sensate tissue coverage.
Libros Para Pueblos: An Exploratory Case Study
Authors: Carlyle Cate , Rehberg Sedo DeNel D , Rydbeck Kerstin
Published: June 2020

This article is the result of an introductory two-year case study project that investigated community libraries supported by the not-for-profit organization Libros Para Pueblos (LPP) in the state of Oaxaca, Mexico. Libros Para Pueblos (LPP) is a largely volunteer-run library organization based in the capital city of Oaxaca de Juarez. In order to analyse the work of LPP we used Mostert & Vermeulen's (1998) nine areas for evaluation of community libraries. Over the past 20 years, the number of libraries the organization supports has grown from two to more than 70 throughout the state. The work that has facilitated this growth is carried out by a small Mexican staff, along with an Executive Committee and a Board of Directors made up of Americans and Canadians living in Mexico. The work is both time consuming and demanding, but it is fuelled by a positive reading ideology that is a result of memories of childhood reading. This motivation is shared by a network of 11 Mexican Regional Volunteer Coordinators who train and support local library workers. The local workers are often doing their tequio, which is a social requirement of working for one or two years in public service. We argue that the success of LPP libraries is influenced by: 1) an organizational structure that mandates Mexican leadership at the Executive level and in paid staff positions; 2) initiation from local representative; 3) the unique and complex socialist community configurations of the Oaxacan region; 4) a community of retirees who volunteer at many levels; and 5) national and international donations.
Influence of the digestive/reproductive tract microbiota on chicken egg production beyond host genetics
Authors: Li Diyan , Tian Shilin , Zhu Wei , Su Yuan , Wang Tao , Ma Tianyuan , Mishra Shailendra Kumar , Shi Lianzhe , Wei Ranlei , Xu Zhongxian , Ning Chunyou , Zhang Dejing , Lin Xuxu , Zhao Xiaoling , Wang Yan , Yin Huadong , Hu Yaodong , Fan Xiaolan , Zeng Bo , Yang Mingyao , Yang Deying , Ni Qingyong , Li Yan , Zhang Mingwang , Yao Yongfang , Xu Huailiang , Li Mingzhou , Zhu Qing
Published: June 2020

Background: The microbiota of the digestive and reproductive systems has a prominent role in animal health and performance, but the extent of its contribution is difﬁcult to determine. In chickens, the effect of host genetics on the reproductive and digestive tract microbiota is unclear, and the means by which digestive/reproductive microbiomes help improve egg production in chicken are unknown.Results: To gain insight into this, we examined genomes from 128 chickens reared under identical conditions and described their digestive (crop, gizzard and small intestine) and reproductive tract (vagina, uterus and isthmus) microbiota. Although the diversity, composition and predicted function of the digestive and reproductive tract microbiota exhibited notable microbiota variation substantially between different parts, host genetics had limited effects on the reproductive and digestive tract microbial community. The digestive and reproductive tract microbiota had a significant effect on egg production (accounting for 52.31% - 98.86% of the variance), after correcting for host genetic effects; in particular, the uterus and isthmus microbiota accounted for an average of 93.59% and 98.86%, respectively, of variance in egg production. We further identiﬁed four reproductive tract microbial species which were related to immune system, Bacteroides fragilis, Bacteroides salanitronis, Bacteroides barnesiae and Clostridium leptum, that were signiﬁcantly positively correlated with egg production. Chickens with a lower abundance of these species had produced signiﬁcantly fewer eggs at 300 days of age (37.13 vs. 113.75) than those with a higher abundance of these microorganisms. These taxa indicate potential roles play in promoting reproductive performance. Especially uterus and isthmus tract microbiota were major factors in regulating the chicken egg production.Conclusions: Host genetics has limited effect on digestive/reproductive microbiome composition. The distinct site-associated chicken microbiome may be determined by the differences of their physical function. These ﬁndings may help design strategies for controlling and altering the digestive/reproductive tract microbiota in chickens to improve egg production.
Transmission Dynamics of SARS-CoV-2 in a Mid-size City of China
Authors: Hongjun Zhao , Lu Xiaoxiao , Li Tiegang , Rao Boqi , Wang Dedong , Wu Di , Qiu Fuman , Yang Zhicong , Lu Jiachun
Published: June 2020

Background: An outbreak of pneumonia associated with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in Wuhan city and then to other city. It is very urgent to delineate the epidemiological and clinical characteristics of these affected patients. Methods: To investigate the epidemiological characteristics of the COVID-19, we describe a case series of 459 patients with confirmed COVID-19 in WZ of China from January 27 to February 12, 2020.Results: The median age of all patients was 48.0 years, and 46.8% were females. 37.5% of patients had a history of residence in Wuhan. Fever (72.1%) and cough (43.6%) were the most frequent symptoms. In addition, three kinds of unconventional cases were observed, in which included 4.4% confirmed virus carrier who were asymptomatic, 7.8% confirmed patients who had no link to Wuhan city but contact with individuals from Wuhan without any symptoms at the time of contact, and 10.7% confirmed patients who had no link to Wuhan city nor a history of intimate contact with patients or individuals from Wuhan without any symptoms, respectively.Conclusion: Our findings presented the possibility of asymptomatic carriers affected with SARS-CoV-2, and this phenomenon suggested that chances of uncontrollable transmission in the larger population might be higher than formerly estimated, and transmission by these three kinds of unconventional patients in WZ may be one of the characteristics of infection in other Chinese cities outside the Wuhan epidemic area.
Exosomes from normal cartilage endplate stem cells ameliorate intervertebral disc degeneration more effectively than exosomes from degenerated cartilage endplate stem cell by activating the AKT/autophagy pathway
Authors: Luo Liwen , Jian Xiuying , Sun Hui , Qin Jinghao , Wang Yanqiu , Yang Di , Li Changqing , Liu MingHan , Tian Zhiqiang , Zhou Yue
Published: June 2020

Background

Nucleus pulposus cells (NPCs) apoptosis is an important factor in exacerbating intervertebral disc degeneration (IVDD) that can be effectively suppressed by exosomes. The aim of this study was to reaearch whether normal cartilage endplate stem cells (CESCs) derived exosomes (N-Exos) were more conducive to activation of autophagy and inhibition of NPCs apoptosis and IVDD than degenerated CESCs derived exosomes (D-Exos) or not.
Methods

Rat CESCs were isolated and identified, and the exosomes produced by normal CESCs and degenerated CESCs were extracted. The bioinformatics differences between normal CESCs derived exosomes (N-Exos) and degenerated CESCs derived exosome (D-Exos) were analyzed by mass spectrometry, heat map and KEGG enrichment analysis biology. The effects of N-Exos and D-Exos on the inhibition of NPCs apoptosis were examined by TUNEL staining, flow cytometry and western blotting. The involvement of the AKT and autophagy signaling pathways was investigated using the signaling inhibitor LY294002. Magnetic resonance imaging, western blotting and immunofluorescence staining were used to evaluate the therapeutic effects of N-Exos in vivo.
Results

CESCs in the cartilage endplate (CEP) could secrete a large amount of exosomes. N-Exos were more conducive to activation of autophagy than D-Exos. The apoptotic rate of NPCs was decreased obviously after treatment with N-Exos than after D-Exos treatment. N-Exos inhibited NPCs apoptosis or attenuated IVDD in a rat tail model by activating the AKT and autophagy signaling pathways.
Conclusions

It was the first to confirm that CEP could delay the progression of IVDD through exosomes secreted by normal CESCs. The therapeutic effects of N-Exos on inhibiting NPCs apoptosis and slowing IVDD progression was more effective than D-Exos by activating the PI3K/AKT/autophagy pathway, which explained the reason that the incidence of IVDD was increased after inflammation of the CEP.
Short-term Moderate-dose Corticosteroid Plus Immunoglobulin Effectively Reverses Covid-19 Patients Who Have Failed Low-dose Therapy
Authors: Zhou Zhi-Guo , Xie Shu-min , Zhang Jing , Zheng Fang , Liu Ji-Heng , Cai Chun-Lin , Li Hui , Jiang Di-Xuan , Zhang Lei
Published: June 2020

Background: The coronavirus disease-19 (COVID-19) has spread globally with more than 6,750,000 people infected, and nearly 400,000 patients died. Currently, we are in an urgent need for effective treatment strategy to control the clinical deterioration of COVID-19 patients.Methods: The clinical data of 10 COVID-19 patients receiving short-term moderate-dose corticosteroid (160mg/d) plus immunoglobulin (20g/d) were studied in the North Yard of The First Hospital of Changsha, Hunan from January 17th to February 27th, 2020. Epidemiological, clinical, laboratory, radiological findings were analyzed. Results: After treatment with combination of low-dose corticosteroid (40-80mg/d) and immunoglobulin (10g/d), patients’ lymphocyte count (0.88±0.34 vs 0.59±0.18, P<0.05), oxygenation index including SPO2 (94.90±2.51 vs 90.50±5.91, P<0.05) and PaO2/FiO2 (321.36±136.91 vs 129.30±64.97, P<0.05) were significantly lower than pre-treatment, and CT showed that the pulmonary lesion deteriorated in all patients. While after treatment of short-term moderate-dose corticosteroid plus immunoglobulin, patients’ APACHE Ⅱ score (9.10±6.15 vs 5.50±9.01, P<0.05), body temperature (37.59±1.16 vs 36.46±0.25, P<0.05), lymphocyte count (0.59±0.18 vs 1.36±0.51, P<0.05), Lactate dehydrogenase (419.24±251.31 vs 257.40±177.88, P<0.05), and C-reactive protein (49.94±26.21 vs 14.58±15.25, P<0.05) significantly improved compared with post-treatment with low-dose therapy. In addition, oxygenation index including SPO2 (90.50±5.91 vs 97.50±1.18, P<0.05), PaO2 (60.47±14.53 vs 99.07±34.31, P<0.05), and PaO2/FiO2 (129.30±64.97 vs 340.86±146.72, P<0.05) significant improved. Furthermore, CT showed that pulmonary lesions obviously improved in 7 patients. After systematic therapy, 4 out of 10 COVID-19 patients recovered and discharged.Conclusions: Short-term moderate-dose corticosteroid plus immunoglobulin is effective for reversing the continued deterioration of COVID-19 patients who failed to respond to the low-dose therapy.
Distal Adding On In Lenke 2AR Adolescent Idiopathic Scoliosis:risk Factors Analysis and Clinical Assessment
Authors: Dong Yulei , Tang Ning , Wang Shengru , Zhang Jianguo , Zhao Hong
Published: June 2020

Background: Risk factors and clinical outcome associated with distal adding on in Lenke 2AR adolescent idiopathic scoliosis (AIS) are not fully elucidated.Methods: Radiographic data of Lenke 2AR AIS patients treated by posterior pedicle screws in a single institution were retrospectively analyzed. Patients who developed distal adding on were compared with patients who did not. Clinical assessment were carried out by SF-36 and SRS-22 questionnaire. Risk factors of distal adding on were explored by binary logistic regression analysis.Results: A total of 88 patients completed an average of 2.9 (2-12.9) years of follow-up were included. 18 (20.5%) patients met the criterion of distal adding on while the rest of 70 cases did not at follow up.Clinical parameters were comparable before surgery and became lower at follow up in adding on group in dimensions of vitality (63.1±11.4Vs.67.5±11.8,P=0.026), mental health (73.9±9.2Vs.77.8±10.2,P=0.039), self-image (3.9±0.3Vs.4.2±0.3,P=0.021) and satisfaction (4.0±0.3Vs.4.5±0.4,P=0.035). The proportion of selection lowest instrumented vertebra (LIV) higher than last touching vertebra(LTV) was significantly higher in adding on group. (6/18vs 4/70, P=0.004) Binary logistic regression analysis revealed that preoperative main thoracic curve magnitude (OR=1.118,P=0.041), preoperative lumbar lordosis (OR=1.091,P=0.029), and the gap between LIV and LTV(OR=6.123,P=0.043) were independent risk factors associated with adding on.Conclusions: In Lenke 2AR AIS cases, the selection of LIV higher than LTV is closely correlated with the development of adding-on. Patients with minor main thoracic curve and lumbar lordosis are more likely to develop distal adding on. Adding on may cause discontent of patients .
Ovarian Vein Embolization with N-butyl-2 Cyanoacrylate Glubran-2® for the Treatment of Chronic Pelvic Pain Secondary to Pelvic Congestion Syndrome
Authors: Gong Maofeng , He Xu , Zhao Boxiang , Kong Jie , Su Haobo
Published: June 2020

Objective: To evaluate the safety and efficacy of ovarian vein embolization using N- butyl-2 cyanoacrylate (NBCA) Glubran-2® in the treatment of chronic pelvic pain (CPP) secondary to pelvic congestion syndrome (PCS).Materials and Methods: Between January 2013 and June 2019, seven wo-men (mean age, 45.6±15.9 y) presenting with CPP secondary to PCS were evaluated for ovarian vein embolization with Glubran-2®. PCS was initially diagnosed by transva-ginal Doppler Ultrasound or CT and further confirmed by pelvic venography. Medical database was retrospectively reviewed.Results: Glubran-2 was employed as a sole embolic material in two cases, four cases subsequently underwent added microcoils in the opening of varicose ovarian vein trunk during the same procedure. Secondary embolization was achieved in one case due to CPP recurrence one month after initial embolization with microcoils. Technical success of ovarian vein embolization with Glubran-2 was achieved in all patients. There were no Glubran-2 related complications mid procedure and postintervention. With mean 62±40 months (range, 12-102 months) follow-up, neither persistent nor recurrent CPP was observed. Clinical efficacy was evaluated on the 1st, 3rd, 6th, 12th months, complete or slight improvement of CPP after embolization were achieved in all patients. VAS score used to identify preintervention and postintervention significantly decreased (p<0.001). Two patients after Glubran-2 embolization gave birth to a healthy baby during follow-up.Conclusions: Ovarian vein embolization with Glubran-2 is a feasible and safe treatment of CPP secondary to PCS. In particularly, it appears to be a potential and attractive alternative when patients with the desires of symptom relief and reproduction.
The Impact of Implementing Steps of Empowerment Model for Women with Failed Pregnancies on Decisional Conflict for Re-pregnancy: A Randomized Controlled Trial
Authors: Kheirkhah Masoomeh , Salehabadi Mozhgan Zareyee , Esmaeeli Nazanin , Haghani Shima
Published: June 2020

Background: Failed pregnancy is a common and destructive experience. It has physical and psychological effects on both women and families. They may become reluctant to re-pregnancy. Providing the coping strategies can help to adapt to failed pregnancies, and make informed decisions about future pregnancies. This study was designed and performed to determine the effect of implementing steps of empowerment model for women with failed pregnancies on decision conflict for re-pregnancy. Method: This interventional research is a randomized controlled trial with a control group that was conducted in Iran from January 2020 to May 2020. Participants were 80 women who had been hospitalized in a referral center during past 3-6 weeks due to failed pregnancies. The eligible women with random allocation of sealed envelope site were divided into two groups of intervention (n=40) and control (n=40) and a separate code was determined for each person. The intervention was performed in four, 90-minute sessions based on the model steps (threat perception, problem solving, educational participation, and evaluation) for intervention group. O'Connor's decisional conflict scale was completed before and six weeks after intervention by both of groups. Data were analyzed using SPSS edition 16 with the independent T-test, Fisher and chi-squared tests. Results: The score of decisional conflict and, its subscales did not differ between the two groups before the intervention (P = 0.65), but six weeks after the intervention, the decisional conflict and, all its subscales in the intervention group reduced. (P < 0.001).Conclusion: Empowerment education in women with a failed pregnancy improved their decision conflict in re-pregnancy, so empowerment education along with health care services for women with failed pregnancies is recommended. Trial registration: This randomized control trial was registered on the TCTR site with the code TCTR20191226001. Registered on 26 December 2019.