bluuebunny/crossref_metadata_2025 huggingface dataset:
Аналіз особливостей стандартизації програмних продуктів та розподілених систем керування.
Authors: Сіваковська O. , Ліщина В. , Ящук A. , Матвіїв Ю. , Повстяна Ю.
Published: June 2020

Здійснено аналіз становлення світової стандартизації. Означено етапи створення міжнародних організацій зі стандартизації. Розглянуто найактуальніші стандарти програмних продуктів та розподілених систем керування. Обґрунтовано переваги та недоліки процесу стандартизації
Redesigning an Independent Learning Course Component: Recognizing the Role of Instructor as Guide
Authors: Hutchinson Caroline
Published: June 2020

This paper describes how an Independent Study course component is being revised to include a greater focus on teacher-guided goal-setting and reflection, inspired by Nunan’s (1997) five levels of autonomy. It reports the findings of a pre-study in which the new component was trialled in 14 classes, and more in-depth qualitative findings from my own class, aimed at establishing the pros and cons of the new component for both students and teachers. Finally, I will report on improvements made following the pre-trial, and future research aims.
Nonlinear Singularly Perturbed Integro-Differential Equations and Regularization Method
Authors: Bobodzhanov Abdukhafiz , Kalimbetov Burkhan , Safonov Valery
Published: June 2020

The paper considers a nonlinear integro-differential system of singularly perturbed equations. We discuss the question of the spectrum of its operator, which does not coincide with the spectrum of its limit operator and includes an additionally identically zero point. In the case of linear systems, this difference does not play a special role, since the regularization and construction of the space of solutions of the corresponding iterative problems are realized at nonzero points of the spectrum. In the case of nonlinear problems, the identically zero point of the spectrum plays an essential role in the construction of the solution space in the resonance and nonresonance cases (see below); therefore, in most works using the regularization method in nonlinear problems, only the nonresonance case is usually considered. In the paper, for the classical integrodifferential system, regularization (according to Lomov) is carried out and the corresponding algorithm for constructing asymptotic solutions taking into account the zero point of the spectrum is developed.
On S-closed Sets and Some Low Separation Axioms in Ideal Topological Spaces
Authors: Boonpok Chawalit
Published: June 2020

This paper deals with the concepts of S-closed sets and S-open sets which are defined by utilizing the notion of Λ s I -sets. Some characterizations of semi-I -R0 ideal topological spaces are investigated.
LA SINFONÍA DE LA TIERRUCA (CONSTRUCCIÓN MUSICAL DE UNA NOVELA REGIONAL)
Authors: Rodríguez Gutiérrez Borja
Published: June 2020

Sin información.
ZORRILLA Y EL HALLAZGO DE UNA FÓRMULA POÉTICA
Authors: García Cadenas David
Published: June 2020

Sin información.
JOSÉ MARÍA DE CARNERERO Y SU DEFENSA CALDERONIANA EN CORREO LITERARIO Y MERCANTIL Y CARTAS ESPAÑOLAS
Authors: Manrique Gómez Marta
Published: June 2020

Sin información.
AMOR Y MATRIMONIO EN LA NOVELÍSTICA DE PEREDA
Authors: Servén Díez Carmen
Published: June 2020

Sin información.
PERSONAJES NACIONALES EN LA POESÍA NARRATIVA DEL DUQUE DE RIVAS
Authors: P. Liso Susana
Published: June 2020

Sin información.
“CONOCIENDO YO, CABALLERO, LO MUCHO QUE VALE SU NOMBRE Y LO POCO CONOCIDO QUE ES EL MÍO”
Authors: Fernández Pura
Published: June 2020

Sin información.
José Manuel Pereiro otero. Vanguardia, exilio y traducción en las posguerras europeas: Nancy Cunard y Ramón del Valle- Inclán. Madrid: Verbum, 2010
Authors: Plata Francisco
Published: June 2020

Reseña del libro Vanguardia, exilio y traducción en las posguerras europeas: Nancy Cunard y Ramón del Valle-Inclán.
PRÓLOGO
Authors: Fuente Ballesteros Ricardo de la
Published: June 2020

Sin información.
EL FRAC AZUL
Authors: G. Caro Isabel
Published: June 2020

Sin información.
FATORES PSICOLÓGICOS ASSOCIADOS À FALTA DE MEMÓRIA EM IDOSOS
Authors: Campos Juliana Morgana Stedile , Gomes Marluci Camila , Markoski Tamiris Nunes
Published: June 2020

O envelhecimento pode provocar alterações cognitivas em idosos, especialmente na memória.O objetivo deste estudo foi identificar os principais fatores psicológicos associados à falta dememória em idosos através de artigos publicados nos últimos dez anos disponibilizados nasprincipais plataformas de pesquisa do país e relatar as experiências vivenciadas com o programaZen Sênior, voltado ao gerenciamento de estresse e ansiedade desta faixa etária. Nos artigosselecionados foram identificados ansiedade, estresse, depressão, autoeficácia e metamemóriacomo os principais fatores psicológicos relacionados à falta de memória em idosos, sendo esteso foco principal quando este tema é investigado. Em seguida, foram apontados os fatoressocioeconômicos e clínicos. Entretanto, as pesquisas não apontaram dados significativos pararespaldar os efeitos destes no uso na memória. Face a esta dubiedade de fatores, torna-seessencial que as práticas de saúde voltadas ao idoso atuem na interdisciplinaridade focandoessencialmente na saúde mental. Para tal, o programa Zen Sênior da Unimed Litoral contribuineste aspecto com o intuito de amenizar os impactos dos fatores psicológicos no desempenhoda memória dos idosos.
CRIME AND PUNISHMENT IN HISTORICAL RETROSPECT

A Review of S. A. Vasilyeva’s monograph

“‘I was in prison and you came to visit me…’

The History of Prison Pastoral Care in Protestantism

and its Influence on Prison Reforms in America, Europe and Russia”

(Moscow, Prospect Publ., 2019. 184 p.)
Authors: Эрлихсон И.М.
Published: June 2020

В предлагаемой рецензии анализируется монография С. А. Васильевой «“В темнице был, и Вы пришли ко мне…” История зарождения практики тюремного служения в протестантской традиции и его влияние на ход пенитенциарных реформ в Америке, Европе и России», в которой систематизируется и осмысливается исторический опыт функционирования социального института тюремных капелланов и перспектив его внедрения в современную российскую уголовно-испол-нительную практику.

The present review analyzes S. A. Vasilyeva’s monograph “"I was in prison and you came to visit me…" The History of Prison Pastoral Care in Protestantism and its Influence on Prison Reforms in America, Europe and Russia”, which systematizes and reassesses the historical experience of pastoral care and counseling for prisoners and analyzes the potential of its integration into the Russian penitentiary system.
Maasai Girls’ Education Aspirations and Socio-Cultural Constraints: Reflections from Monduli Tanzania
Authors: Mtey Adela
Published: June 2020

The paper aimed to explore the Maasai girls’ education aspirations and the social cultural constraints they face in their effort towards acquiring formal education in Monduli, Tanzania. Capability Approach (CA) was used to guide the understanding of girls’ education aspirations. The study employed ethnographic research design by involving 30 participants across the community, including elders, parents, traditional leaders, children (school and out-of-school) and the district education officer. Participant observations and ethnographic interviews were used to collect data for a period of three months. Data were analysed thematically. As a result, the study revealed that girls and some other members in the Maasai society had positive views about girls’ education. Girls had education aspirations of acquiring specific careers like being nurses, teachers and doctors. Their aspirations were, however, constrained by some traditional beliefs and practices such as early marriage, girls’ circumcision and esoto (a night dance between young girls and the Moran). These traditional beliefs made the Maasai girls’ aspirations unfulfilled as they slowly found themselves accustomed to these traditional arrangements while losing the ability to develop capabilities they would need to attain their education aspirations. The study, thus, argues that obstacles that hinder attainment of girls’ aspirations on education need to be eliminated from the community. Formal education should enhance girl’s agency in order to develop the capabilities they need for their social functioning.
Mustakabali wa Kiswahili kama Lugha ya Kufundishia Nchini Tanzania: Uhakiki wa Maudhui ya Sera ya Elimu na Mafunzo ya 2014
Authors: Kawonga Gervas
Published: June 2020

Msingi wa makala haya ni “Sera ya Elimu na Mafunzo” (SEM, 2014). Makala yanahakiki nafasi ya lugha ya Kiswahili kwenye Sera ya Elimu na Mafunzo nchini Tanzania na mustakabali wake kwenye mfumo wa elimu kama lugha ya kufundishia. Mbinu iliyotumika ni ya maktabani ambapo mwandishi alisoma na kuhakiki maudhui ya SEM msisitizo ukiwa kwenye masuala yahusuyo lugha ya kufundishia. Uchambuzi wa kiisimujamii ulitumika ili kuonesha ukinzani baina ya matamko ya SEM. Tamko la SEM kuhusu lugha ya Kiswahili kama lugha ya kufundishia haliakisi hali halisi. Uhusiano wa Kiisimujamii wa lugha ya Kiswahili na ya Kiingereza kuhusu elimu unatoa tafsiri kuwa endapo SEM itatumika bila nia ya dhati ya kuisaidia lugha ya Kiswahili basi lugha hiyo inaweza kutoweka kabisa kwenye mfumo wa elimu kama lugha ya kufundishia. Makala yanajenga hoja kuwa tamko la SEM kwamba Kiingereza na Kiswahili ziwe na hadhi sawa kwenye mfumo wa elimu linatia moyo kwa mustakabali wa lugha ya Kiswahili lakini utekelezaji wake unaibua changamoto nyingi kwa namna ambayo zisipotazamwa kwa makini lugha ya Kiingereza itaendelea kukita mizizi zaidi na kujenga uwezekano wa jamii kukataa kufundishwa kwa lugha ya Kiswahili kwa sababu mwelekeo wa jamii unanasibisha elimu na Kiingereza. Mwisho, wito unatolewa kwa watunga sera kusitisha kutumia lugha ya wachache kutoa elimu kwa wengi kwa kuwa kufanya hivyo ni kubadili malengo ya elimu.
Cash for Childcare as a Policy Instrument – advantages and limitations
Authors: Sipilä Jorma
Published: June 2020

The presented article is an attempt to draw attention to the economiccontexts of the functioning of families in Europe. The author presentsvarious types of financial support for families using the examples fromselected European countries. The idea of paying the mother for lookingafter her children at home is analysed in detail.
Conceived child as a subject of right to life
Authors: Zalewski Bartosz
Published: June 2020

The aim of this article is to outline the arguments in favour of acknowledging an unborn child as a subject of constitutional law with the right to life (Article 38 of the Constitution of the Republic of Poland). For this purpose, the article presents an overview of the case law of the Constitutional Tribunal as well as views of legal academics and commentators and judicial decisions concerning the right to life, the concept of subject of law, and the legal position of an unborn child. Furthermore, the article reviews the international law and the case law of international tribunals. Although the Constitutional Tribunal stipulates that every person, including an unborn child, is entitled to legal subjectivity (in the judgement on case No. K 26/96), it may seem that the reasoning in this judgement is still rejected in the literature regarding both constitutional and civil law.
Internet – wolność słowa a naruszenie dóbr osobistych
Authors: Majkowska Magdalena
Published: June 2020

W ramach niniejszego artykułu podejmowana jest analiza mająca na celu ustalenie, gdzie kończy się korzystanie z wolności słowa jednostki, a zaczyna naruszanie cudzych dóbr osobistych w przestrzeni wirtualnej. Przedstawione zagadnienia mają na celu wskazanie, w jaki sposób może dojść do naruszenia przez internautów tych dóbr w ramach cudzych serwisów internetowych takich jak: fora internetowe, portale społecznościowe oraz inne serwisy umożliwiające zamieszczanie komentarzy przez użytkowników internetowych. Jest to próba odpowiedzi na pytanie, jak zakreślić granice wypowiedzi internetowej przy uwzględnieniu specyfiki Internetu, aby jednocześnie zapewnić ochronę dobrom osobistym innych użytkowników Internetu? Dotyczy także zagadnień związanych z koniecznością dostosowania istniejących instrumentów prawa cywilnego do nowych warunków, jakie stwarza Internet.
Evidence that 1I/2017 U1 (‘Oumuamua) was Composed of Molecular Hydrogen Ice
Authors: Seligman Darryl , Laughlin Gregory
Published: June 2020

‘Oumuamua (I1 2017) was the first macroscopic (l ∼ 100 m) body observed to traverse the inner solar system on an unbound hyperbolic orbit. Its light curve displayed strong periodic variation, and it showed no hint of a coma or emission from molecular outgassing. Astrometric measurements indicate that ‘Oumuamua experienced nongravitational acceleration on its outbound trajectory, but energy balance arguments indicate this acceleration is inconsistent with a water ice sublimation-driven jet of the type exhibited by solar system comets. We show that all of ‘Oumaumua’s observed properties can be explained if it contained a significant fraction of molecular hydrogen (H2) ice. H2 sublimation at a rate proportional to the incident solar flux generates a surface-covering jet that reproduces the observed acceleration. Mass wasting from sublimation leads to monotonic increase in the body axis ratio, explaining ‘Oumuamua’s shape. Back-tracing ‘Oumuamua’s trajectory through the solar system permits calculation of its mass and aspect ratio prior to encountering the Sun. We show that H2-rich bodies plausibly form in the coldest dense cores of giant molecular clouds, where number densities are of order n ∼ 105, and temperatures approach the T = 3 K background. Post-formation exposure to galactic cosmic rays implies a τ ∼ 100 Myr age, explaining the kinematics of ‘Oumuamua’s inbound trajectory.
Development of a LAMP method for detection of carbapenem-resistant Acinetobacter baumannii during a hospital outbreak
Authors: Garciglia Mercado Carolina , Gaxiola Robles Ramon , Ascencio Felipe , Silva-Sanchez Jesus , Estrada-Garcia Maria Teresa , Gomez-Anduro Gracia
Published: June 2020

Introduction: Carbapenem-resistant A. baumannii (CRAB) represents a public health threat increasing worldwide. We assess the suitability of a loop-mediated isothermal amplification (LAMP) method for on-site screening of CRAB in a hospital facility.

Methodology: A set of six primers were designed for recognizing eight distinct sequences on six targets: blaOXA-23-like, blaOXA-24-like, blaOXA-51-like, blaOXA-58-like, blaIMP, and blaVIM. A LAMP method was developed, optimized and evaluated for the identification of CRAB in thirty-three environmental samples from an outbreak in an Intensive Care Unit (ICU) facility.

Results: The sensitivity of the LAMP assay for the detection of A. baumannii was ten-fold higher than the PCR assay (1.0 ng.µL-1). The LAMP assays showed a higher detection rate for CRAB samples and robust diagnosis performance in comparison to a conventional PCR, with clinical sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of 100% for blaOXA-23-like, blaOXA-51-like and blaVIM.

Conclusions: The developed LAMP assays are powerful tools that can be useful in on-site screening of CRAB causing local outbreaks in clinics and hospitals facilities where costs and equipment restraints are imperative.
Off-label antibiotic use in a specialized children care hospital in Punjab, Pakistan: Findings and implications
Authors: Hafeez Muhammad , Saleem Zikria , Bukhari Nasir Abbas , Hussain Khalid , Shamim Rahat , Hussain Amjad , Bukhari Nadeem Irfan
Published: June 2020

Introduction: Most of the antibiotics currently used in pediatrics are either unlicensed or being prescribed outside the specifications of product label (off-label prescribing). The aim of this study was to assess the extent of off-label antibiotic use in pediatrics.

Methodology: A six month longitudinal off-label antibiotic utilization survey was carried out from January to June, 2018. A structured questionnaire was designed to collect detailed information for each pediatric patient admitted to participating health center. The data included basic demographic and clinical diagnosis with details of prescribed antibiotics (formulation, dose, dosage, route of administration and indication for use). Data were analyzed using Social packages for Statistical Sciences (SPSS) version 21.0.

Results: Of 1,810 admissions, 1,795 (99.2%) patients received antibiotics. Out of these, a total of 451 (25.1%) patients (326 patients admitted in the medical ward and 125 patients in ICUs) received at least one unlicensed/off-label antibiotic. Antibiotics were predominantly prescribed for the treatment of infections (n = 311, 69.0%). The majority of the pediatric patients who received off-label antibiotic suffered from respiratory tract infections (n = 223, 49.4%), skin and soft tissue infections (n = 53, 11.8%), gastrointestinal tract infections (n = 56, 12.4%) and other infections (n = 46, 10.2%). Co-amoxiclav (n = 190, 42.1%) was the most frequently off-label prescribed antibiotic to pediatric patients. An inappropriate dose for patients (n = 430, 95.3%) was the most frequent cause of prescribing off-label antibiotics.

Conclusions: Further evaluation of health and economic outcomes of off-label prescribing and determinants influencing the drug choice is required.
Effect of Phage-Antibiotic Synergism (PAS) in increasing antibiotic inhibition of bacteria caused of foodborne diseases
Authors: Iqbal Mochammad , Narulita Erlia , Zahra Fiqih , Murdiyah Siti
Published: June 2020

Introduction: Food contaminated with pathogenic bacteria is one of the most harmful things that can even threaten human life. Over time, these pathogenic bacteria are increasingly resistant to antibiotics. Continuous use of synthetic preservatives will also have an adverse effect. This study was conducted to evaluate the synergy of bacteriophage and antibiotics in increasing antibiotics inhibition to the bacteria that cause foodborne disease.

Methodology: The test was performed by plaque assay and paper disc diffusion on NA medium in the same petri dish. The combination was incubated for 24 hours at 37ºC. An antibiotic inhibition on a non-bacteriophage test showed cefadroxil could only inhibit P21B bacteria.

Results: Cefadroxil inhibition in the PAS test showed that these antibiotics could inhibit some other foodborne disease bacteria (Salmonella spp., Staphylococcus aureus, and Escherichia coli). The inhibitory observed from the clear zone located around the disc paper.

Conclusion: These results provide useful information to reduce the risk of antibiotic resistance in humans and foods.
A vaccine is not too far for COVID-19
Authors: Patel Shailesh Kumar , Pathak Mamta , Tiwari Ruchi , Yatoo Mohd. Iqbal , Malik Yashpal Singh , Sah Ranjit , Rabaan Ali A , Sharun Khan , Dhama Kuldeep , Bonilla-Aldana D Katterine , Rodriguez-Morales Alfonso J
Published: June 2020

N/A
Knowledge and Awareness of Diabetes Mellitus Disease among High School Students in King Abdulaziz Military City, Tabuk, Saudi Arabia
Authors: Alenazi Mohammed Ahmad , Alenezi Solaiman Hosaian , Alhablani Maniee Nasser , Alanazi Muhannad Ahmed Matar , Alenazi Waleed H. , AlQahtani Majed Saeed , Alenezi Dana , Mahzari Qasem Abdu
Published: June 2020

BACKGROUND: Saudi Arabia is considered to be one of the highest countries in the Middle East for the incidence of diabetes mellitus (DM). Data are lacking regarding knowledge and awareness about DM among school students in Saudi Arabia.
AIM: The study aimed to assess the level of knowledge and awareness of DM among high school students within the military city, Tabuk, Saudi Arabia.
METHODS: A descriptive type of cross-sectional study was conducted among 278 high school students applying a convenience sampling technique. The sample size was calculated using OpenEpi, Version 3. Self-administered questionnaires were distributed to the high school students (male and female) after official communication with the school’s dean. The level of knowledge and awareness was categorized into “adequate” and “inadequate” as per each topic/question, and also as per each response/answer. Data entry and analysis were carried out using the Statistical Package for the Social Sciences. Pearson’s Chi-square tests were performed to explore if there is any significant association between the knowledge and awareness level of the high school students and their (i) gender, (ii) age, and (iii) level of education.
RESULTS: More than half of the high school students had adequate level of knowledge and awareness about DM in terms of symptoms (67.3%), complications (56.5%), monitoring method (62.6%), lifestyle modifications (63.7%), frequency of routine eye check-up (63.3%), important factors for blood sugar control (79.1%), treatment (56.5%), and management of hypoglycemia symptoms (57.6%). On the contrary, a large number of the students showed inadequate level of knowledge and awareness about the disease in terms of definition (80.6%), major causes (57.9%), effect of high blood pressure (51.8%), frequency of routine blood pressure check-up (55%), rationale of a regular urine test (58.3%), medication for DM (66.9%), and duration of medication (69.8%). However, no significant associations were found between the knowledge and awareness level of the high school students about the definition or major causes of DM and the (i) gender, (ii) age group, and (iii) level of education of the students.
CONCLUSION: The level of knowledge and awareness of a considerable number of high school students regarding DM was inadequate, and some of them possessed various misconceptions about this particular chronic disease. Health authorities and school authorities in the region should offer special efforts to improve the level of knowledge and awareness of the students through regular health education campaigns.
Stability analysis and Hopf bifurcation in a diffusive epidemic model with two delays
Authors: Dai Huan ,   School of Science, Harbin Institute of Technology (Weihai), Weihai 264209, China, Liu Yuying , Wei Junjie ,   Department of Mathematics, Harbin Institute of Technology, Harbin 150001, China
Published: June 2020

A diffusive epidemic model with two delays subjecting to Neumann boundary conditions is considered. First we obtain the existence and the stability of the positive constant steady state. Then we investigate the existence of Hopf bifurcations by analyzing the distribution of the eigenvalues. Furthermore, we derive the normal form on the center manifold near the Hopf bifurcation singularity. Finally, some numerical simulations are carried out to illustrate the theoretical results.
Rascacielos a la italiana. Construcción de gran altura en los años cincuenta y sesenta
Authors: Capurso G.
Published: June 2020

En los años cincuenta y sesenta del siglo XX, mientras la ingeniería italiana recibía importantes premios internacionales, el diseño de los edificios en altura atraía la atención de los mejores arquitectos. Estos entendieron inmediatamente lo mucho que el empleo estratégico de la estructura habría podido revolucionar la ya de por sí estereotipada imagen de la torre de acero y vidrio propuesta por el Estilo Internacional, y lo convirtieron en un campo de experimentación. De esta forma Gio Ponti, Luigi Moretti y la BBPR desarrollaron extraordinarias colaboraciones con Pier Luigi Nervi y Arturo Danusso, los ingenieros más activos en el campo del diseño de rascacielos. De entre los proyectos realizados en esos años, este proceso de colaboración dió como resultado a al menos tres obras maestras: la torre Velasca, el rascacielos Pirelli y la torre de la Bolsa de Valores de Montreal. Esta última, en el momento de su finalización, además significó el récord del edificio de hormigón armado más alto del mundo.
An Efficient Methodology for Resolving Uncertain Spatial References in Text Documents
Authors: Raja K.  , Kanagavalli V. R.  , Nizar Banu P. K.  , Kannan K.
Published: June 2020

In recent decades, all the documents maintained by the industries are getting transformed into soft copies in either structured documents or as an e-copies. In text document processing, there is a number of ways available to extract the raw data. As the accuracy in finding the spatial data is crucial, this domain invites various research solutions that provide high accuracy. In this article, the Fuzzy Extraction, Resolving, and Clustering (FERC) architecture is proposed which uses fuzzy logic techniques to identify and cluster uncertain textual spatial reference. When the text corpus is queried with a spatial-keyword, FERC returns a set of relevant documents sorted in view of the fuzzy pertinence score. Any two documents may be compared in light of the spatial references that exist in them and their fuzzy similarity score is presented. This enables finding the degree to which the two documents speak about a specified location. The proposed architecture provides a better result set to the user, unlike a Boolean search where the document is either rated relevant or irrelevant.
Development of Copper Loaded Nanoparticles Hydrogel Made from Waste Biomass (Sugarcane Bagasse) for Special Medical Application
Authors: Kumar Harish , Gehlaut Avneesh Kumar , Gupta Himanshu , Gaur Ankur , Park Jin Won
Published: June 2020

This research is based on the creation of copper oxide nanoparticles (CuO-NPs) hydrogel through in situ method. The effective UV-Vis spectroscopy absorption peak of 610 nm indicates the existence of copper oxide nanoparticles (CuO-NP) group because of surface Plasmon resonance (SPR). Characterization of CuO-NPs was carried out by SEM, TEM, EDX, and XRD. However, the action of prepared nanocomposite hydrogels swelling was examined at different pH and saline solutions. In addition, CuO-NPs were also tested using the disk plate diffusion method by means of adverse effect of bacteria Gram-positive bacteria (Bacillus subtilis) as well as Gram-negative bacteria (Escherichia coli). The CuO-NPs hydrogels isolated from lab-made CMC (made from sugarcane bagasse) indicates that the Bacillus subtilis as well as Escherichia coli have greater antibacterial activity compared with synthetic CMC purchase from the market. CuO-NPs can be used effectively in biomedical applications with the production of hydrogels.
Natural Convection in a Nano-Fluid Filled Square Enclosure
Authors: Barhoi Barbie Leena , Borah Ramesh Chandra , Singh Sandeep
Published: June 2020

The present study relates to numerical investigation of natural convection heat transfer in a nanofluid filled square enclosure. One side of the enclosure is maintained at high temperature and the other side at a low temperature; while the top and bottom sides are adiabatic. The commercial CFD software ANSYS-FLUENT© was used to solve this numerical problem with the governing differential equations discretized by a control volume approach. nanofluids of Cu-water, Al2O3-water and TiO2-water have been simulated for a range of Rayleigh numbers and volume fractions. The results were obtained in the form of streamlines and isotherms. Interpretations of the results are done based on heat transfer rates, volume fraction, Rayleigh number and Nusselt number. It is to be noted that addition of nanoparticles enhances the heat transfer rate. It is also observed that the Nusselt number is highly affected by volume fraction and Rayleigh number.
Analytical Methods for the Synthesis of Composites
Authors: Garkina Irina , Danilov Alexander
Published: June 2020

The evolution of ideas about materials is analyzed: the initial accumulation of data, experience and skills in the production of new material (the emergence of new technology); identification of patterns of influence of various factors on the properties of the material with the involvement of fundamental sciences (the formation of a new technology); obtaining building material with a given level of quality (development of an effective technology ); identification of the technological process and the construction of an adequate model of “recipe-technological factors - structure - quality of the material”. In models of structural material science, the existence of certain hierarchical structures of objects considered as systems is assumed; model selection is determined by the objectives of the structural description of the object at each scale level. The shift of paradigms based on the basic models of a continuous self-developing environment to the side of paradigms based on models of a structured self-developing environment based on the ideas and methods of a systematic approach and synergetics is indicated. The approaches to the fundamentalization of the synthesis of materials based on their own experience in designing materials for special purposes are presented: the presentation of the material in the form of a complex system (at first - poorly structured with conflicting goals and criteria); quality assessment of composite materials; formalization of kinetic processes; material quality management; minimization of dimension of criterion space; multi-criteria optimization.
The Use of Viscoelastic Layers in GFRP, a New Vision of Planning Hull
Authors: Townsend Patrick , Suárez Juan Carlos , Muñoz Nadia , Rodríguez J.
Published: June 2020

The planning hull, are types of boats very used in our days, and require special maintenance and repair. It is proposed the insertion of a viscoelastic layer inside the laminated panels of the ships built with GFRP, to protect them from the impacts of slamming. Unmodified and modified laminate panels were manufactured to perform result comparisons. With the reproduction of the phenomenon of fatigue in the laboratory, testing them in the impact machine, the use of strain gauges and by characterization with fluorescent penetrating inks to observe the evolution of micro cracks. It is verified that the proposed modification is the future of shipbuilding of this type of vessel.
Effect of Ply Drop in Aerospace Composite Structures
Authors: Jadhav Prakash
Published: June 2020

In most of the aerospace laminated composite structures, thickness variation is achieved by introducing the ply drops at the appropriate locations. Ply drop means the resin rich regions created due to abrupt ending of individual plies within the set of plies. This research is focused on understanding and quantifying the effect of these ply drop regions on the mechanical performance of the aerospace composite structures. This is achieved here by designing the appropriate coupons (with and without ply drops) and analyzing them using finite element analysis. Some typical designs of coupons were manufactured using aerospace grade carbon composite materials, and then tested under four-point bend, cantilever and short beam shear tests to check and validate the effect that was seen in the analysis. It is concluded here that allowable failure strains are different for with and without ply drop cases by a significant amount.
Two Experimental Approaches for Investigation of Nonlinear Elastic Properties of Polymers and Polymer-Based Composites
Authors: Belashov Andrey V. , Zhikhoreva Anna A. , Semenova Irina V. , Beltukov Yaroslav M.
Published: June 2020

The development and fabrication of novel composite materials requires accurate investigation of their mechanical properties. Although various approaches are well-established for investigation of linear elastic properties, there are only few methods that can be applied for study of nonlinear ones. In this report we describe and compare the performance of two different experimental approaches aimed for investigation of nonlinear elastic properties of glassy polymers and polymer-based composites.
Effect of Shear Stress on Viscosity and Crystallization Behavior of CaO-SiO2-Al2O3 Based Mold Fluxes
Authors: Gu Shao Peng , Wen Guang Hua , Guo Jun Li , Tang Ping
Published: June 2020

The effect of shear stress on the viscosity and crystallization behavior of CaO-SiO2-Al2O3 based mold fluxes were investigated, and the structure evolution of molten slag under shear stress were characterized by magic-angle spinning nuclear magnetic resonance technology (MAS-NMR). The results showed that with an increase of shear stress, the shear-thinning behavior of molten slag was found, and the strongest shear-thinning behavior was formed with an addition of 15% Al2O3. Correspondingly, the decrement of Q3(1Al) and Q2(1Al) species in molten slag were the largest from MAS-NMR results. In addition, under agitation, the crystallization fraction of sample increased from 71% to 88%, and the average grain size was reduced 23%. However, the shear stress has no influence on the crystal phase.
Stress Analysis of a Flange Stiffened FRP Composite Panel with Varying Stacking Sequence
Authors: Teyi Nabam , Tamang Santosh Kumar
Published: June 2020

Large panel structures made of composites are common building units in aerospace industries. In order to increase the stiffness of such structures, the panel or skin is adhered to a flange and supported by a web. Such a stiffened panel is modeled as an arrangement of web, flange and panel with an interface between the flange and the panel. In this paper, three dimensional stress analysis of one such stiffened panel has been carried out using the finite element analysis. The geometric non-linearity has been assumed in the analysis. The effect of material anisotropy and the laminate stacking sequence on the stress components has been studied. Material Graphite Fiber Reinforced Polymeric (GFRP) composite has been used and, two different configurations were considered while the unidirectional prepregs were laid up in quasi-isotropic [0/0/0/0]2 and cross-ply [0/90/90/0]2. Subsequently, the coupled stress failure criterion has been used to predict the critical location of damage onset. When component damage indicator attained the value of 1.0, the component was considered to lose stiffness and structural integrity.
Research on Production Technology of Asymmetrically Hot Rolled Stainless Steel Clad Plate
Authors: Chen Zhen Ye , Qi Jian Jun , Liu Hong Qiang , Sun Li , Tian Zhi Qiang
Published: June 2020

The hot rolled single sided stainless steel clad plate of 316L stainless steel and Q345C steel was carried out in a hot rolling line by the technology of “electron beam vacuum welding and hot rolling”. High quality single sided stainless steel clad plates were produced by asymmetrical compound billet and asymmetrically rolling. The productions of stainless steel clad plate have reached the requirements of GB / T 8165-2008. The interface shear strength is greater than 320 MPa. The yield strength is greater than370 MPa. The tensile strength is greater than 520 MPa. The elongation is greater than 30%, A good metallurgical bonding between stainless steel and carbon steel was achieved. The bonding rate reached 100%. The composite interface is straight and perfect. The pilot production in the study has laid down the certain basis for the production of the single-side dissimilar-material composite board.
Preparation and Characterization of Oligopeptide/M-Pluronic F127 Composite Membranes
Authors: Xia Chuan Jun , Ming Ping Deng , Hu Ya Song , Zhan Cong Cong , Zhou An Duo , Mao He Yi , Huang Xia
Published: June 2020

In the present study, oligopeptide (TEA) and modified Pluronic F127 (M-Pluronic F127) with different mass fraction composited by intermolecular forces. And the oligopeptide/M-Pluronic F127 composite membranes were prepared and investigated. The structural parameters of the membranes were characterized by fourier transform-infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and differential scanning calorimetry (DSC) measurements. It was found that there had strong interaction between TEA and M-Pluronic F127 and the composite films with different proportions had different surface morphology and thermal stability. The characteristics of the membranes were related to the significant changes of the self-assembly behavior of the TEA modified by M-Pluronic F127.
Preparation of Scalpel with Stable Anti-Blood Property
Authors: Hao Yi Chun , Wang Qiu Lin , Liu Zi Ai , Liu Xin , Sun Jing , Song Jin Long
Published: June 2020

As the most common medical apparatuses, the scalpels are extensively used for tissue cutting. During the tissue cutting process, blood adhesion to the surface of the ordinary scalpel is unavoidable and seriously affects the usability of the scalpel, which may cause medical accidents. Therefore, developing an anti-blood scalpel is of great importance. Herein, we prepare a scalpel with outstanding anti-blood property through coating method. The cleaned ordinary scalpel is immersed in the mixed solution containing nanocomposite ceramic coatings and silicone oil. After drying, the anti-blood scalpel is obtained. It can be observed from the scanning electron microscope (SEM) images that the surface of the anti-blood scalpel possesses microstructures. Compared with the ordinary scalpel, our anti-blood scalpel demonstrates outstanding blood repellence. Blood droplets can easily slide on the anti-blood scalpel surface with ~5° sliding angle. Compared with the existing scalpels with anti-blood property, our scalpel has the ceramic slippery surface rather than the slippery liquid-infused porous surfaces (SLIPSs). The stability of the ceramic slippery surface is much better than the SLIPSs because the SLIPSs are vulnerable under high temperatures and the decomposition products possess poor biocompatibility, which are harmful to human health. Therefore, the anti-blood scalpel has great application prospects in medical treatment.
Trigger Mechanism of Microcapsule Based Self-Healing Cementitious Material
Authors: Liang Guan Xi , Wang Xian Feng , Qian Zhiwei , Han Ning Xu , Xing Feng
Published: June 2020

A cementitious system embedded in microcapsules can achieve self-healing, and the fracture and triggering behavior of microcapsules is with great importance. In this study, the crack behavior of the concrete-microcapsule system was simulated by a three-dimensional lattice model. Based on the results of the fracture energy test on concrete beams and the nanoindentation test on microcapsules, the local mechanical properties of the lattice elements were determined. The aim of this paper is to set up a three-dimensional lattice model to study the trigger mechanism of the microcapsule-interface-concrete zone.
Rola pobożności ludu chrześcijańskiego w procesie uświęcenia człowieka na przykładzie kultu Najświętszego Serca Jezusowego
Authors: Matczak Bartłomiej
Published: June 2020

The role of the piety of the Christian people in the process of sanctifying man on the example of the cult of the Sacred Heart of Jesus

The term „sanctification” in theology practically always appears in the liturgical context. According to the teachings of the Second Vatican Council, the liturgy is the most perfect, though not the only, place to sanctify human life. Among other forms, a special place of devotion of the Christian people should be mentioned, which, although having the characteristics of particularism, can have a huge impact on the universal Church. In this context, the relationship between the piety of the Christian people and the process of sanctification, which is most precisely expressed in the liturgy, has been shown. In the text, the author analyzes the worship of the Heart of Jesus in the light of two liturgically significant features: worship of God and apostolic work, which is the fruit of the sanctifying power of the liturgy. An additional element remains to show the worship of the Heart of Jesus in the historical context and the impact of popular piety on the official approval of texts and liturgical feasts.

Termin „uświęcenie” w teologii pojawia się praktycznie zawsze w kontekście liturgicznym. Zgodnie z nauką II Soboru Watykańskiego liturgia jest najdoskonalszym, choć nie jedynym, miejscem uświęcania życia ludzkiego. Wśród innych form szczególne miejsce zajmuje pobożność ludu chrześcijańskiego, która choć posiada cechy partykularyzmu, może mieć ogromny wpływ na Kościół powszechny. W tym kontekście ukazana została relacja, jaka zachodzi pomiędzy pobożnością ludu chrześcijańskiego a procesem uświęcania, który najpełniej wyraża się właśnie w liturgii. W tekście autor poddaje analizie kult Serca Jezusowego w świetle dwóch istotnych liturgicznie cech: oddania czci Bogu i dzieła apostolskiego, które jest owocem uświęcającej mocy liturgii. Dodatkowym elementem pozostaje ukazanie kultu Serca Jezusowego w kontekście historycznym i wpływu pobożności ludowej na oficjalne zatwierdzenie tekstów i świąt liturgicznych.
Development of Methodology for Vulnerability Assessment of Chemical Accident in Terrestrial Ecosystem:(1) Focusing on the Trees
Authors: Chae Yooeun , Cui Rongxue , Lee Jieun , Kim Lia , An Youn-Joo
Published: June 2020

Objective:With rapid industrial development, human and the environment are frequently exposed to various chemicals. In particular, there is a possibility that terrestrial ecosystems as well as humans are exposed to a large amount of highly toxic chemicals due to accidents occurring frequently in Korea and abroad. If a large amount of chemicals enter the terrestrial ecosystem due to an accident such as a chemical leakage, the terrestrial ecosystem around the accident site may be affected and these chemicals may impair not only a living organisms, but also the function of terrestrial environment, the habitat of the organisms. The aim of this study is to develop methodology for vulnerability assessment of chemical accident in terrestrial ecosystem.Method:First, we selected 41 forest tree species and 41 shrubs among woody plants according to the domestic distribution and establish various vulnerability indicators that can be evaluated according to the exposure and recovery categories.Results and Discussion:As a result of vulnerability scoring for 41 forest tree species and 41 shrubs, most vulnerable species were Daphniphyllum macropodum, Lindera obtusiloba, Juniperus rigida, Diospyros lotus, and Eucommia ulmoides in forest trees and Zanthoxylum piperitum, Cephalotaxus koreana, Forsythia koreana, Cycas revoluta, and Lespedeza maximowiczii in shrubs.Conclusions:This study quantified the vulnerability of trees to chemical accidents by adding them and assigning them according to their characteristics. We expect that the risk of chemicals caused by chemical accidents occurring in these days and the exposure of chemicals to the environment can be assessed in terms of ecological perspective using the assessment of vulnerability of terrestrial ecosystems proposed in this study.
El fenómeno de los valores en la visión histórica y moderna.
Authors:  Kryukov Victor Vasilyevich  , Kicheev Vladimir Georgiyevich  , Zemtsov Boris Nikolaevich. 
Published: June 2020

El artículo ofrece una versión de la comprensión de los valores como elementos de la cultura. Como idea fundamental, Adam Smith aceptó la teoría clásica del valor del trabajo, pero con una generalización significativa de esta idea desde el contexto económico como un caso especial hasta el nivel teórico general de la filosofía social, en el que los valores se entienden como productos de ambos aspectos prácticos y la actividad intelectual. El principio del egocentrismo social y la interpretación de las principales categorías de valores, versiones de la filosofía de la historia como un proceso en el que los valores de la cultura surgen y se modifican.
Estudio basado en corpus sobre el perfil de vocabulario del lenguaje Shahmukhi Punjabi.
Authors:  Muhammad Farukh Arslan  , Muhammad Asim Mehmood  , Shaukat Hayat. 
Published: June 2020

Esta investigación es sobre el desarrollo del Perfil de Vocabulario con la ayuda de compilar un corpus de dos millones de palabras de Shahmukhi Punjabi. Un corpus de Shahmukhi Punjabi se transcribió a Gurmukhi Punjabi para el etiquetado de partes del habla. El corpus fue analizado con la ayuda de Antconc. La lista de frecuencias y la lista de diferentes ítemes de vocabulario según sus categorías gramaticales se estudiaron en el corpus desarrollado. Se ha observado que las palabras del idioma Punjabi tienen muchos casos y formas diferentes como contrarias al idioma inglés y similares al idioma Urdu. Los sustantivos, verbos y adjetivos varían según el número y el género. En el corpus también se encontraron abreviaturas y palabras de préstamo del idioma inglés.
Impacto del ejercicio y depresión en estudiantes de nivel superior caso universidad autónoma del estado de México.
Authors: Cristina Polet Gutiérrez Rodríguez  , María Eugenia Álvarez Orozco.
Published: June 2020

La impresionante prevalencia que la depresión ha tenido en los últimos años y el poco o nulo ejercicio que realiza la población adulta, ha hecho sospechar una posible relación entre estas variables. Se elaboró un estudio cuantitativo no experimental, transversal, tipo descriptivo, correlacional y explicativo, aplicando instrumentos como Escala de Hamilton, Prueba del escalón de Harvard corta y un cuestionario con ítems: Sexo, edad y si realizaban o no ejercicio físico. La muestra fue de 22 estudiantes ambos sexos con el objetivo de Establecer el impacto del ejercicio físico en la depresión. Se determinó que 63.6% de los estudiantes no realizan ejercicio, 90.9% tienen una condición física pobre y un 68.2% presentan sintomatología depresiva.
Análisis de la experiencia extranjera y rusa en la implementación de tecnologías Lean en instituciones educativas.
Authors: Sergey Kurganskiy  , Olga Kireeva  , Irina Belogortseva  , Nina Kireeva.
Published: June 2020

El artículo está dedicado a comprender las posibilidades de aplicar las tecnologías de producción ajustada en el campo de la educación. Sobre la base de la investigación realizada, se determinaron las causas de los resultados negativos y las condiciones para lograr indicadores efectivos del uso de la tecnología de producción ajustada en el entorno educativo. Los resultados del estudio permiten eliminar errores en el proceso de implementación de tecnología de manufactura esbelta en el campo de la educación, encontrar nuevos componentes motivadores para aumentar el interés de los empleados en los resultados de sus actividades, pensar en crear un nuevo modelo de “lean ”Universidad por movilización y activación de capacidades internas.
Abuso de derechos en las relaciones jurídicas corporativas: el concepto y características, temas y formas.
Authors: Aleksey I. Ovchinnikov  , Svetlana V. Ribak  , Marina V. Alekseeva  , Tatiana V. Veselaya  , Olga V. Diachenko.
Published: June 2020

El objetivo de la investigación es determinar el abuso de los derechos en las relaciones jurídicas corporativas. Se utilizaron los aspectos teóricos, metodológicos, conceptuales e institucionales del abuso del derecho por parte de los accionistas en las relaciones con una sociedad anónima. Los resultados mostraron que el abuso de los derechos por parte de los accionistas se entiende como una violación por parte de los accionistas de las reglas básicas de comportamiento corporativo según las cuales un accionista está obligado a ejercer sus derechos e intereses legítimos al tiempo que respeta los derechos de otros accionistas, así como el toda la sociedad anónima.
Naturaleza profunda de la realidad del quehacer del profesor universitario en Entornos Virtuales de Aprendizaje: caso universidades del noroeste de México.
Authors: María Teresa Pérez Piñón  , David Picazo  , Dagoberto Pérez Piñón  , Aixchel Cordero Hidalgo  , José Abelardo Anguiano Chavira.
Published: June 2020

El objetivo fue caracterizar el perfil del docente que imparte cátedra en entornos virtuales de aprendizaje (EVA). Con enfoque fenomenológico, se recolectó información de grupos focales de docentes de instituciones de educación superior de la región noroeste de México. Los resultados reflejan que el profesor de EVA asume varios roles: diseñador gráfico, de contenido, corrector de estilo y administrador de la plataforma, actividades que a la postre pueden demeritar la calidad de su cátedra. El maestro es un facilitador que utiliza Tecnologías de Información y Comunicación (TIC) como medio de interacción; requiere capacitación en TIC, pedagogía de la virtualidad y disciplinariamente. Los hallazgos pueden servir como sustento para delinear estrategias en beneficio de la calidad educativa en modalidades no convencionales.