bluuebunny/crossref_metadata_2025 huggingface dataset:
GREEN'S FUNCTIONS OF SOME BOUNDARY VALUE PROBLEMS FOR BYHARMONIC OPERATORS AND THEIR CORRECT CONSTRICTIONS
Authors: Koshanov B. D. , Baiarystanov A. , Daurenkyzy M. , Turymbet S. O.
Published: April 2021

In this paper, a constructive method is given for constructing the Green function of the Dirichlet problem for a biharmonic equation in a multidimensional ball. The need to study boundary value problems for elliptic equations is dictated by numerous practical applications in the theoretical study of the processes of hydrodynamics, electrostatics, mechanics, thermal conductivity, elasticity theory, and quantum physics. The distributions of the potential of the electrostatic field are described using the Poisson equation. When studying the vibrations of thin plates of small deflections, biharmonic equations arise. There are various ways to construct the Green Function of the Dirichlet problem for the Poisson equation. For many types of domains, it is constructed explicitly. And for the Neumann problem in multidimensional domains, the construction of the Green function is an open problem. For the ball, the Green function of the internal and external Neumann problem is constructed explicitly only for the two-dimensional and three-dimensional cases. Finding general correct boundary value problems for differential equations is always an urgent problem. The abstract theory of operator contraction and expansion originates from the work of John von Neumann, in which a method for constructing self-adjoint extensions of a symmetric operator was described and a theory of extension of symmetric operators with finite defect indices was developed in detail. Many problems for partial differential equations lead to operators with infinite defect indices. In the early 80s of the last century, M.O. Otelbaev and his students built an abstract theory that allows us to describe all correct constrictions of a certain maximum operator and separately - all correct extensions of a certain minimum operator, independently of each other, in terms of the inverse operator. In this paper, the correct boundary value problems for the biharmonic operator are described using the Green's function.
SOLITON DEFORMATION OF INVERTED CATENOID
Authors: Kurmanbayev D. , Yesmakhanova K.
Published: April 2021

The minimal surface (see [1]) is determined using the Weierstrass representation in three-dimensional space. The solution of the Dirac equation [2] in terms of spinors coincides with the representations of this surface with conservation of isothermal coordinates. The equation represented through the Dirac operator, which is included in the Manakov’s L, A, B triple [3] as equivalent to the modified Veselov-Novikov equation (mVN) [4]. The potential 𝑈 of the Dirac operator is the potential of representing a minimal surface. New solutions of the mVN equation are constructed using the pre-known potentials of the Dirac operator and this algorithm is said to be Moutard transformations [5]. Firstly, the geometric meaning of these transformations which found in [6], [7], gives us the definition of the inversion of the minimal surface, further after finding the exact solutions of the mVN equation, we can represent the inverted surfaces. And these representations of the new potential determine the soliton deformation [8], [9]. In 2014, blowing-up solutions to the mVN equation were obtained using a rigid translation of the initial Enneper surface in [6]. Further results were obtained for the second-order Enneper surface [10]. Now the soliton deformation of an inverted catenoid is found by smooth translation along the second coordinate axis. In this paper, in order to determine catenoid inversions, it is proposed to find holomorphic objects as Gauss maps and height differential [11]; the soliton deformation of the inverted catenoid is obtained; particular solution of modified Karteweg-de Vries (KdV) equation is found that give some representation of KdV surface [12],[13].
QR VERIFICATION OF LABORATORY STUDIES RESULTS
Authors: Kadirkulov K. , Ismailova А. , Beissegul A. , Satybaldiyeva A.
Published: April 2021

This article describes the practical using of QR codes [1] verification of laboratory studies results. QR codes have become widely used in all industries as quick identification of information and the implementation of transactional actions, where encrypted URL allows to quickly scanning by using a smartphone camera. Digitalization contributes to the transition to the online environment of healthcare, office workers, education and to receive more data on the spread of diseases, exchange information and quickly receive laboratory results without distortion. The presented solution is a component of the LIS SmartLAB platform [2], which performs complex automation of laboratories of the different profiles, observing all work processes to obtain reliable results by direct interaction with laboratory equipment according to international standards HL7 (Health Level 7 - "Seventh level"), ASTM (American Society for Testing and Materials - "American Society for Testing Materials") and automatic detection of deviations from standard values [3]. In 2019, there was a pilot implementation of QR verification of results based on the laboratory of the Skin and venereal dispensary of the Almaty, the results of which made it possible to introduce QR codes into other profiles of laboratory diagnostics, such as PCR (polymerase chain reaction), genetics, microbiology and clinical diagnostics. Now, due to the pandemic, all laboratory results for the detection of RNA of the COVID-19 virus must contain a QR code to avoid falsification of the results.
ON THE RESTRICTED THREE-BODY PROBLEM
Authors: Minglibayev M. Zh. , Zhumabek T. M.
Published: April 2021

The paper analytically investigates the classical restricted three-body problem in a special non-inertial central coordinate system, with the origin at center of forces. In this coordinate system, an analytical expression of the invariant of the centre of forces is given. The existence of the invariant of the centre of forces admits the correct division of the problem into two problems. The first is a triangular restricted three-body problem. The second is a collinear restricted three-body problem. In this paper the collinear restricted three-body problem is investigated. Using the properties of the invariant of centre of forces of the restricted three-body problem in the special non- inertial central coordinate system, the basic differential equations of motion for the collinear restricted three-body problem are obtained when three bodies lie on the same line during all motion. Differential equations of the collinear restricted three-body problem in the rotating non-inertial central coordinate system in pulsating variables are derived. New differential equations of motion for the collinear restricted three-body problem in three regions of possible location of the massless body with stationary solutions corresponding to the three Euler libration points have been derived. The circular collinear restricted three-body problem is investigated in detail. The corresponding Jacobi integrals are obtained. New exact non-stationary partial analytical solutions of the obtained new differential equations of motion of the collinear restricted three-body problem have been found for the considered case.
EXAMINATION OF HEAT EXCHANGE IN A POROUS DUST-GAS CATCHER WITH A RING-PIPE SPRAYER
Authors: Genbach A. A. , Shokolakov K. K.
Published: April 2021

Nozzle-free capillary-porous dust and gas trap with foam generating and defoaming structures was developed and studied. Foam flow is generated by dusty gas, micro and ultra microscopic particles, which are especially dangerous for human body, are cleaned. Stability of liquid film in the porous structure during supply of foam-forming liquid by a spray in the form of a tubular ring, was determined. Foam generating and defoaming structures have been optimized, due to this material consumption and dimensions are reduced by 2-2.5 times, hydraulic resistance - by dozens of times (up to one hundred times), and gas-dynamic - by up to two times.
QUASICLASSICAL LIMIT OF THE SCHRÖDINGER-MAXWELL- BLOCH EQUATIONS
Authors: Umurzhakhova Zh. B. , Koshanova M. D. , Pashen Zh. , Yesmakhanova K. R.
Published: April 2021

The study of integrable equations is one of the most important aspects of modern mathematical and theoretical physics. Currently, there are a large number of nonlinear integrable equations that have a physical application. The concept of nonlinear integrable equations is closely related to solitons. An object being in a nonlinear medium that maintains its shape at moving, as well as when interacting with its own kind, is called a soliton or a solitary wave. In many physical processes, nonlinearity is closely related to the concept of dispersion. Soliton solutions have dispersionless properties. Connection with the fact that the nonlinear component of the equation compensates for the dispersion term. In addition to integrable nonlinear differential equations, there is also an important class of integrable partial differential equations (PDEs), so-called the integrable equations of hydrodynamic type or dispersionless (quasiclassical) equations [1-13]. Nonlinear dispersionless equations arise as a dispersionless (quasiclassical) limit of known integrable equations. In recent years, the study of dispersionless systems has become of great importance, since they arise as a result of the analysis of various problems, such as physics, mathematics, and applied mathematics, from the theory of quantum fields and strings to the theory of conformal mappings on the complex plane. Well-known classical methods of the theory of intrinsic systems are used to study dispersionless equations. In this paper, we present the quasicalassical limit of the system of (1+1)-dimensional Schrödinger-Maxwell- Bloch (NLS-MB) equations. The system of the NLS-MB equations is one of the classic examples of the theory of nonlinear integrable equations. The NLS-MB equations describe the propagation of optical solitons in fibers with resonance and doped with erbium. And we will also show the integrability of the quasiclassical limit of the NLS-MB using the obtained Lax representation.
Two Types of Smoking Pipes and a Global Perspective in Rua do Terreiro do Trigo, Lisbon
Authors: de Sousa Miguel Martins , Henriques José Pedro , Filipe Vanessa Galiza
Published: April 2021

Studies of clay smoking pipes represent one of the major fields of research in post-medieval archaeology due to their frequent occurrence in the archaeological record and their suitability for typological dating. During an archaeological survey in Rua do Terreiro do Trigo, located in Lisbon’s picturesque district of Alfama, very close to the Tagus River and where many different and cosmopolitan people spent their spare time during the post-medieval period, we were able to collect a significant number of smoking pipes fragments, given the site’s dimension. Amongst the sherds recovered it is possible to identify a great number of European kaolin clay pipe fragments dated from the 17th to the 18th century and also a set of unusual black and grey earthenware chibouks of (yet) uncertain origin. Therefore, this paper seeks to report the smoking pipe assemblage recovered in Rua do Terreiro do Trigo, but also to discuss the study of smoking devices in the Portuguese post-medieval archaeological contexts.
Professionalisierung pädagogischer Fach- und Lehrkräfte in der frühen MINT-Bildung
Authors:   Stiftung ", Skorsetz Nina ,   Haus der kleinen Forscher", Röder Lisa , Schmidt Julia Katharina , Kucharz Diemut
Published: April 2021

Die Autor*innen legen dar, dass die Anzahl besuchter MINT-Fortbildungen von zentraler Bedeutung für die Entwicklung der professionellen Kompetenz in der frühen MINT-Bildung ist. Der Band stellt die Ergebnisse zweier Studien zur professionellen Entwicklung von pädagogischen Fach- und Lehrkräften in der frühen MINT-Bildung vor, die zu diesem Ergebnis gekommen sind.
Alzheimer’s Disease and Empathic Abilities: The Proposed Role of the Cingulate Cortex
Authors: Ávila-Villanueva Marina , Gómez-Ramírez Jaime , Ávila Jesús , Fernández-Blázquez Miguel A.
Published: April 2021

In recent years there has been increasing interest in examining the role of empathic abilities in Alzheimer’s disease (AD). Empathy, the ability to understand and share another person’s feelings, implies the existence of emotional and cognitive processes and is a pivotal aspect for success in social interactions. In turn, self-empathy is oriented to one’s thoughts and feelings. Decline of empathy and self-empathy can occur during the AD continuum and can be linked to different neuroanatomical pathways in which the cingulate cortex may play a crucial role. Here, we will summarize the involvement of empathic abilities through the AD continuum and further discuss the potential neurocognitive mechanisms that contribute to decline of empathy and self-empathy in AD.
Functional Brain Connectivity Patterns Associated with Visual Hallucinations in Dementia with Lewy Bodies
Authors: Pezzoli Stefania , De Marco Matteo , Zorzi Giovanni , Cagnin Annachiara , Venneri Annalena
Published: April 2021

Background:

The presence of recurrent, complex visual hallucinations (VH) is among the core clinical features of dementia with Lewy bodies (DLB). It has been proposed that VH arise from a disrupted organization of functional brain networks. However, studies are still limited, especially investigating the resting-state functional brain features underpinning VH in patients with dementia.

Objective:

The aim of the present pilot study was to investigate whether there were any alterations in functional connectivity associated with VH in DLB.

Methods:

Seed-based analyses and independent component analysis (ICA) of resting-state fMRI scans were carried out to explore differences in functional connectivity between DLB patients with and without VH.

Results:

Seed-based analyses reported decreased connectivity of the lateral geniculate nucleus, the superior parietal lobule and the putamen with the medial frontal gyrus in DLB patients with VH. Visual areas showed a pattern of both decreased and increased functional connectivity. ICA revealed between-group differences in the default mode network (DMN).

Conclusion:

Functional connectivity analyses suggest dysfunctional top-down and bottom-up processes and DMN-related alterations in DLB patients with VH. This impairment might foster the generation of false visual images that are misinterpreted, ultimately resulting in VH.
Creative Art Therapy as a Non-Pharmacological Intervention for Dementia: A Systematic Review
Authors: Emblad Shayla Y.M. , Mukaetova-Ladinska Elizabeta B.
Published: April 2021

Background:

Non-pharmacological therapies have been shown to be effective in managing challenging behavior in people with dementia. However, the efficacy of art therapy has yet to be determined.

Objective:

In the present systematic review, we evaluate the efficacy of art therapy as a non-pharmacological intervention for dementia and examine whether art therapy improves wellbeing and quality of life while decreasing biological and psychological symptoms of dementia (BPSD).

Methods:

Research undertaken between 2015 and 2020 was examined and a total of seventeen studies met the specified search criteria, with 853 participants (657 people with dementia, 180 formal and informal carers, and 16 volunteers) involved.

Results:

We identified four outcome domains: wellbeing, quality of life, BPSD, and cognitive function. One or more significant outcomes as having an impact on the efficacy of the intervention were reported in 88% (15/17) of the studies, whereas 17% (3/17) demonstrated significant outcomes across quality of life, wellbeing, and BPSD.

Conclusion:

People with dementia benefit from art therapy. These interventions when incorporating elements of being ‘in the moment’ increase opportunities for communication between people with dementia and their caregiver(s) and facilitate person-centered therapeutic activities.
Interval Algebra and Region Connection Calculus for Ontological Spatiotemporal Assembly Product Motion Knowledge Representation
Authors: Khan Md Tarique Hasan , Demoly Frédéric , Kim Kyoung Yun
Published: April 2021

Over the last decades, noticeable efforts have been made to construct design knowledge during the detailed geometric definition phase systematically. However, physical products exhibit functional behaviors, which explain that they evolve over space and time. Hence, there is a need to extend assembly product knowledge towards the spatiotemporal dimension to provide more realistic knowledge models in assembly design. Systematic semantic knowledge representation via ontology enables designers to understand the anticipated product’s behavior in advance. In this article, Interval Algebra (IA) and Region Connection Calculus (RCC) are investigated to formalize and construct ontological spatiotemporal assembly product motion knowledge. IA is commonly used to represent the temporality between two entities, while RCC is more appropriate to represent the ‘part-to-part’ relationships of two topological spaces. This paper discusses the roles of IA and RCC and presents a case study of a nutcracker assembly model’s behavior. The assembly product motion ontology with the aid of IA and RCC is evaluated using a task-based approach. The evaluation shows the added value of the developed ontology compared to others published in the literature.
A Canadian Adult Spinal Muscular Atrophy Outcome Measures Toolkit: Results of a National Consensus using a Modified Delphi Method
Authors: Slayter Jeremy , Hodgkinson Victoria , Lounsberry Josh , Brais Bernard , Chapman Kristine , Genge Angela , Izenberg Aaron , Johnston Wendy , Lochmüller Hanns , O’Ferrall Erin , Pfeffer Gerald , Plamondon Stephanie , Rodrigue Xavier , Schellenberg Kerri , Shoesmith Christen , Stables Christine , Taillon Monique , Warman-Chardon Jodi , Korngut Lawrence , O’Connell Colleen
Published: April 2021

Background:

Spinal Muscular Atrophy (SMA) is a rare disease that affects 1 in 11 000 live births. Recent developments in SMA treatments have included new disease-modifying therapies that require high quality data to inform decisions around initiation and continuation of therapy. In Canada, there are no nationally agreed upon outcome measures (OM) used in adult SMA. Standardization of OM is essential to obtain high quality data that is comparable among neuromuscular clinics.

Objective:

To develop a recommended toolkit and timing of OM for assessment of adults with SMA.

Methods:

A modified delphi method consisting of 2 virtual voting rounds followed by a virtual conference was utilized with a panel of expert clinicians treating adult SMA across Canada.

Results:

A consensus-derived toolkit of 8 OM was developed across three domains of function, with an additional 3 optional measures. Optimal assessment frequency is 12 months for most patients regardless of therapeutic access, while patients in their first year of receiving disease-modifying therapy should be assessed more frequently.

Conclusions:

The implementation of the consensus-derived OM toolkit will improve monitoring and assessment of adult SMA patients, and enrich the quality of real-world evidence. Regular updates to the toolkit must be considered as new evidence becomes available.
Predicting the winning percentage of limited-overs cricket using the Pythagorean formula
Authors: Senevirathne Hasika K.W. , Manage Ananda B. W.
Published: April 2021

The Pythagorean Win-Loss formula can be effectively used to estimate winning percentages for sporting events. This formula was initially developed by baseball statistician Bill James and later was extended by other researchers to sports such as football, basketball, and ice hockey. Although one can calculate actual winning percentages based on the outcomes of played games, that approach does not take into account the margin of victory. The key benefit of the Pythagorean formula is its utilization of actual average runs scored and actual average runs allowed. This article presents the application of the Pythagorean Win-Loss formula to two different types of limited-overs cricket formats, namely One Day International cricket (ODI) and Twenty20 cricket. The data for the application was used from the matches played by the top 10 International Cricket Council (ICC) members who participated in the 2019 ICC Cricket World Cup. For matches for which the second batting team won, runs scored were estimated by considering the remaining amount of resources, based on the Duckworth–Lewis method.
Parasitoids collected in the Caatinga
Authors: Marchiori Carlos Henrique
Published: April 2021

The Caatinga is the only biome restricted to the Brazilian territory, occupying basically the Region Northeast, with some areas in the state of Minas Gerais. Caatinga vegetation does not have green exuberance rainforests and the dry aspect of the physiognomies dominated by cacti and shrubs suggests low diversification of fauna and flora. For the preparation of this study, which consists of building a bibliographic summary of the main groups of parasitoids of the Order Hymenoptera (Parasitica Hymenoptera) collected in the Caatinga biome, a bibliographic search was carried out that contained published works on the following aspects: Definition Caatinga, Characteristics Hymenoptera, Characteristics Parasitica Hymenoptera, Main Superfamilies, and Families and Studies carried out and Main genera or species, during the period from December 2019 to January 2020. Although still incipient, some surveys on fauna and flora have been carried out in this type of vegetation, but many have ignored insects, which can be considered the group with a great contribution to the essential processes of ecosystems.
Wicked Problems need WKID Innovation: Innovation as a Process to Develop a Disruptive Technology Product
Authors: Stavros E. Natasha
Published: April 2021

NOW PUBLISHED IN _RESEARCH-TECHNOLOGY MANAGEMENT_, HTTPS://DOI.ORG/10.1080/08956308.2022.1994249 [https://doi.org/10.1080/08956308.2022.1994249]

Wicked problems result from complex systems and often have no single solution. WKID Innovation is a framework to tack wicked problems and is modeled after NASA’s science system engineering. NASA is a leader creating disruptive technologies that alter the way that people, companies, or industries operate. It has been pioneering innovation to advance human knowledge since 1958 engineering the first human landing on the moon, successfully landing rovers on Mars, and leaving our solar system, literally going where no man has gone before. NASA drives innovation to new frontiers in our galaxy and beyond, while also collecting accurate, reliable Earth observations that change the way we live our life in the day to day. WKID Innovation is a framework to scale NASA processes for innovation, specifically by using the knowledge hierarchy to bridge design thinking and complex systems science to system engineer and manage disruptive innovation.

Keywords: innovation; NASA; information technology; process; wicked problem
Polpa de banana e sacarose no desenvolvimento in vitro de orquídeas
Authors:   Universidade Federal Rural do Rio de Janeiro, Aquino Eliane Lima de = , Couto Tarcísio Rangel do ,   Universidade Federal Rural do Rio de Janeiro, Araújo João Sebastião de Paula ,   Universidade Federal Rural do Rio de Janeiro
Published: April 2021

The objetive of this study was to evaluate the effects of adding two types of banana pulp, combined with varying concentrations of sacarose on the growth of Cattleya sp. plantlets. Hybrid LCTV-01 seedlings (Cattleya labiata rubra x Cattleya labiata semi alba) made to germinate in vitro were inoculated in an MS culture medium with half the concentration of nutrients and supplemented with 60 g.L-1 'maçã' or 'terra' banana pulp in addition to different concentrations of sacarose (10, 20 and 30 g.L-1. The entirely randomized experimental design was chosen, implemented in seven treatments, ten repetitions and eight seedlings per repetition. After 160 days of in vitro cultivation, variables of fresh weight, number of leaves, number of roots and length of the longest root were evaluated. It was found that the addition of banana pulp of any of the analyzed cultivars promoted better seedling growth. Additionally, the 20 g.L-1 sacarose concentration yielded better results for the analyzed variables.
Application of long short term memory algorithm in classification electroencephalogram
Authors: Huynh Viet Quoc , Nguyen-Thi-Nhu Quynh , Tran Minh Duc , Le Anh Ngoc , Nguyen Phuoc Thanh , Huynh Tuan Van
Published: April 2021

Human emotion plays an important role in communication without language, and it also supports research on human behavior. In addition, electroencephalogram signals have been highly confirmed by researchers for reliability as well as ease of storage and recognition. So, the use of electroencephalogram to identify emotion signals are currently a relatively new field. Many researchers are targeting the key ideas in this research field such as signal preprocessing, feature extraction and algorithm optimization. In this paper, we aim to recognize emotion signals using Long Short Term Memory (LSTM) algorithms. Emotional signals dataset was taken from DEAP database of koelstra authors and associates to serve this research. The research will focus on accuracy and training time, and it will test different architectural types as well as the initials of LSTM. The obtained results show the 3-dimensional cubes's structure has better performance than the 2-dimensional cubes's structure. In addition, our research is also compared with other authors' studies to prove the effectiveness of the classification algorithm.
Study of flame retardancy, thermal and physical properties of rigid polyurethane foam based on recycled poly(ethylene terephthalate) using non-halogen flame retardant
Authors: Nguyễn Hà Tuyết Minh , Hoang DongQuy , Phạm Thị Chi
Published: April 2021

Bis(2-hydroxyethyl) terephthalate (BHET) obtained from waste poly(ethylene terephthalate) bottles was used to synthesize polyurethane foams (B-PUF) and the fireproof B-PUF in the presence of nonhalogen flame retardant, namely, aluminum hydrogen phosphonate (AHP). Loading of 25 php AHP was needed for B-PUF/AHP to achieve UL-94 V-0 rating. The thermal stability of B-PUF was improved with the addition of AHP through the thermogravimetric analysis (TGA) results. In addition, other properties such as density and foam structure were also investigated. The outcomes of this study also confirmed that the B-PUF prepared from recycled PET not only were composed of a high percentage of waste poly(ethylene terephthalate), which could help reduce the amount of recycled polymer materials and improved waste management but also met the high demands for the fire safety of polymer applications.
Effects of dam construction on the main-stream river, a lesson from Ba Lai dam, Ben Tre province
Authors: Tran Thai Thanh , Tran Yen Thi My , Tran Giang Hoai , Pham Hoai Ngoc , Tran Tinh , Ngo Trang Thu , Lam Tan Minh , Ngo Quang Xuan , Ann Vanreusel , Bijeesh Veettil Kozhikkodan
Published: April 2021

Water can make a substantial contribution to human life for drinking as well as purposes related to human life and human nature.  Because of increasing demand for water, there is a need for dam construction in preparation for agricultural purposes, drinking, industry and also flood control, power generation, etc. Simultaneously, they have had a considerable impact on the environment. A large range of potential impacts and hazards linked to the exploitation of dams and reservoirs, such as: (i) Major change in flow regime, thermal regime, physico-chemical cycles, (ii) reduction or loss of biological diversity, particular in aquatic species, (iii) greenhouse gas emissions, (iv) increases in the number of infectious disease and accumulation of heavy metals in food web...Therefore, there are various potential health risks of the environment and residents. However, whilst dam effects are very well documented elsewhere in the world, little or no information about negative effects of dams on the environment is available from Vietnam. Consequently, this paper provides a brief review of the environmental impact of dam constructions and after that, we will investigate some strategies to deal with the effects for Vietnam. By the way, we give some insight into ​​the first studies on the impacts of dams on the environment, which focuses on aquatic species was also noted in paper.
Preparation and photo fenton-like activities of CuO/nanocellulose composite
Authors: Vu An Nang , Le Ngoc Hoa Thi , Nguyen Linh Thi My , Le Khoa Tien , Le Hieu Van
Published: April 2021

A combination between the nanostructured photocatalyst and cellulose-based materials promotes a new functionality of cellulose towards the development of new bio-hybrid materials for water treatment and renewable energy applications. In this study, nanocellulose (CNC) was synthesized from sugarcane bagasse (SCB) biomass via formic /peroxyformic acid process treatment and acid hydrolysis at an atmospheric pressure. The resulting CNC of sugarcane bagasse were characterized by crystallinity index, chemical structure and morphology. X-ray diffraction (XRD) analysis revealed that the crystallinity increased with successive treatments. Images generated by TEM showed that CNC was rod-like in morphology, average diameter and length of 10 nm and 410 nm, respectively. The obtained CNC was used as a biotemplate for the synthesis of copper oxide (CuO) nanostructures through in - situ solution casting method. The photo-Fenton catalytic activity was evaluated via the degradation of methylene blue under sunlight irradiation with H2O2 as a oxidizing agent. The methylene blue degradation ratio of CuO/ CNC composite could achieve 98% in 150 min. The addition of H2O2 enhanced photocatalytic activities of the CuO/CNC. H2O2 not only prevented the recombination of charge carriers by accepting the photogenerated electrons and holes effectively but also produced additional OH.
Increasing the Durability of Roller-electrodes in Electrocontact Surfacing of Parts of Mobile Agricultural and Transport Equipment
Authors:   Central Ukrainian National Technical University, Dubovyk Viktor , Nevdakha Yurii ,   Central Ukrainian National Technical University, Pukalov Viktor ,   Central Ukrainian National Technical University, Chernov Vlvdyslav ,   Central Ukrainian National Technical University
Published: April 2021

During the operation of mobile agricultural and motor vehicles, their connections and parts are activated. This leads to a decrease in traction power, operating speed, quality and productivity when performing technological operations. Repair costs are constantly rising, so the question of finding inexpensive technologies for the restoration of worn parts is relevant. Such technologies include electro-contact surfacing. One of the reasons that constrains the widespread use of the method of electrocontact surfacing is the low stability of the electrode roller. Currently, little research has been conducted to study the wear of the electrode rollers and increase their wear resistance. The research on search of ways of increase of durability of rollers-electrodes at electrocontact surfacing is carried out. The operating conditions of the electrode rollers and their operation, the strength of the welded joint when using a tool with different degrees of operation were considered. The operation of the roller-electrode during electro-contact surfacing has a negative effect on the strength of the welded joint of the metal coating with the base due to the reduction of deformation of the filler wire. The results of tests for operation show that a significant reduction in the quality of the welded joint occurs when using electrodes made of hot-rolled copper after 1.5...2 hours of operation. It is not possible to fully compensate for the negative impact of the electrode operation on the quality of the welded joint by adjusting the technological modes of surfacing. This indicates the need for 2 - 3 times the replacement of such tools, after grooving their working surfaces on a lathe. Developed recommendations for the choice of sizes of rollers-electrodes used in electro-contact surfacing of parts of mobile agricultural and transport equipment.
OVERVIEW OF AN OVARIAN CANCER AND ITS TREATMENT ASPECTS
Authors: Kishorbhai Vaghasiya Tushar , Malaviya Miteshkumar
Published: April 2021

Cancer (medical term: malignant neoplasm) is a class of diseases in which a group of cells display uncontrolled growth, invasion that intrudes upon and destroys adjacent tissues, and sometimes metastasis, or spreading to other locations in the body via lymph or blood. These three malignant properties of cancers differentiate them from benign tumors, which do not invade or metastasize. Ovarian cancer is fundamentally a disease of failure of regulation of tissue growth. In order for a normal cell to transform into a cancer cell, the genes which regulate cell growth and differentiation must be altered. These brief surveys discuss the current therapy, novel treatment and its side effects.

Keywords: Cancer, Cancer treatment, Liposomal formulation
Сadiz Museum and its Communication Strategy
Authors:   MGIMO University, Alina Koroleva , Elena Smolskaya ,   MGIMO University
Published: April 2021

During lockdown 2020, museums reacted by attempting to digitally offer everything that had previously been done in the museum space. The testing of tools and resources, as well as new forms of communication and participatory techniques, leads us to a hybrid museum where virtuality is combined with physical presence. The new reality has intensified the current discussions about the museum as a socio-cultural institution, a new definition of the concept of a museum, about the relationship between entertainment and educational forms of interpretation of heritage. Along with an overview of key research trends and methodological approaches in the field of heritage, the article presents the results of the analysis of social networks of the Museum of Cadiz, based on a methodological approach to planning and evaluating integrated communications - the PESO model, which separates the channels of information dissemination into paid, earned, social and owned. The Cadiz Museum was not chosen as an object of research by chance, since even before the pandemic, its digital communications stood out strongly against the background of other Spanish museums of different levels. It is possible that they managed to achieve this due to the fact that they made their pages on Instagram, Facebook and Twitter not only the showcase of the museum, but also the very entrance to the museum. Social networks for the Museum of Cadiz are the only channel with which he can independently work. The official pages of the Museum of Cadiz, during the pandemic, were analyzed for the period from March 12 (the announcement of the closure of museums) to August 31, using the Russian automated service for analytics of brand communities in social networks, JagaJam. The data is compared with the same period in 2019 (except for Twitter, for which there is no data).
«Generation of The 28th» in the History of Venezuela
Authors:   Institute of Latin America of the Russian Academy of Cience, Emil Dabagyan
Published: April 2021

The article analyzes the most important period in the historical development of Venezuela. Under the dictator Juan Vicente Gomez, who reigned uncontrollably for a long time, the “Generation of the 28th” emerged. It contributed notably to the democratic development of the country. The participants of named movement were mainly the representatives of student youth; they were the first to openly oppose the tyranny. "The Generation of the 28th" went through a complex evolutionary path eradicating their own mistakes. A representative democracy functioned in Venezuela for forty years. It modified the face of Venezuelan society: the adopted Constitution guaranteed to all citizens the right to elect and be elected. The regular shifts in all the government agencies, a freedom of assembly and the media were practiced. The democratic institutions worked securily while serious socio-economic reforms were carried out throughout the country.
Environmental security in rural areas near the Ukrainian-Polish border: comparative analysis
Authors: Kulish I. , Yankiv M. , Fetko S. , Liublin V.
Published: April 2021

A comparative analysis of the ecological safety of rural areas of the Ukrainian-Polish border was conducted. The main statistical indicators characterizing the natural environment on both sides of the Ukrainian-Polish border have been studied. The possibility of using indicators of the state of ecology of rural areas used for statistical purposes in Ukraine and Poland has been studied. The degree of implementation of the provisions of the “Association Agreement between Ukraine, on the one hand, and the European Union, the European Atomic Energy Community and their Member States, on the other hand” on the unification of statistics was analyzed and found to be incomplete. Indicators used for statistics in Poland (EU) and Ukraine differ significantly, which greatly prevents a full comparison of the environment and living conditions, which a priori determine the quality of life, its duration, the health of residents on both sides of the border. This situation complicates the planning of joint Ukrainian-Polish activities in all areas covered by the concept of “environmental security in the cross-border area”. It was emphasized that Ukraine has undertaken to harmonize the Ukrainian statistical system with the European Statistical System, as well as to support the introduction of a common quality management system in all processes of production and distribution of statistical products, but this activity is very slow. It is revealed that due to this situation the cooperation between the parties within the European Statistical System, namely Eurostat as the EU statistical body, in the field of environmental statistics remains low. It is proved that the presence of a large number of border crossings in border areas are additional (compared to other local areas) centers of agricultural soil pollution: increasing air emissions and solid waste, consuming more water, respectively, increases the amount of wastewater and the load on treatment plants. At the same time, there is a constant threat of transboundary pollution and accidents of water supply systems, and consequently, the release of emissions of varying degrees of danger into water and soil. The need to conduct further research to study the structure of agricultural production of the Ukrainian-Polish borderland with an emphasis on organic production and consumption was noted.
Avaliação Da Taxa De Dispensação De Isoniazida Utilizada No Tratamento Preventivo De Tuberculose Em Serviço Especializado Em HIV/Aids
Authors: Santana Claudinei Alves , Gutierrez Eliana Battaggia
Published: April 2021

Introdução: A síndrome da imunodeficiência adquirida, causada pelo vírus da imunodeficiência humana constituiu-se em uma das principais epidemias de doenças infecciosas do século XX. A Tuberculose é uma doença crônica, infecciosa e contagiosa, causada pelo Mycobacterium tuberculosis. Ambas as doenças, interagem tornando-se um grande problema de saúde pública. O tratamento preventivo com isoniazida apresenta opção para não manifestação da tuberculose. A adesão ao tratamento é essencial para sucesso da prevenção. Objetivo: Avaliar a taxa de adesão ao tratamento preventivo com isoniazida, medida através da dispensação do medicamento na farmácia e os fatores associados entre sujeitos com HIV/aids e Infecção Latente pelo Mycobacterium tuberculousis acompanhados em Serviço Especializado no Atendimento de Pacientes HIV/aids. Metodologia: Estudo retrospectivo e prospectivo, descritivo e analítico com pacientes adultos com HIV/aids em seguimento, Serviço de Extensão ao Atendimento de Pacientes HIV/aids da Divisão de Moléstias Infecciosas e Parasitárias do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, em uso do Sistema de Informação e Gestão Hospitalar (SIGH) implantado nos Ambulatórios e Serviço de Farmácia, sendo realizando a análise de associação entre as variáveis de interesse e desfecho através do teste t de Student com IC de 95%, sendo considerado com significado estatístico p ≤ 5%. Resultados: Foram incluídos 161 sujeitos que participaram do estudo sendo 78,9 % do sexo masculino, 67,7% idade inferior 50 anos, 87,0% com mais de 5 anos de infeção pelo HIV, e intercorrências durante o tratamento preventivo estiveram presentes em 12,4% (20). A taxa de adesão ao tratamento preventivo com isoniazida em prontuário e prescrição eletrônica foram 96% e 83%, respectivamente, ambas sendo superiores a 80% segundo recomendação da Organização Mundial de Saúde e não houve associação entre as variáveis de interesse e desfecho. Conclusão: A taxa elevada pode ser justificada parcialmente, por práticas adotadas na assistência médica e farmacêutica como o agendamento das datas de dispensação de medicamentos, unificação para dispensações de diferentes medicamentos na mesma data, informações na farmácia sobre fatores que elevam a efetividade do tratamento. A assistência e atenção farmacêutica realizada de forma adequada foi em última análise a grande responsável pelos resultados alcançados.
The 1946 - 1956 Hydrographic Data Archive at the Institut für Meereskunde, Kiel, digitized: a data guide
Authors: Thomas Müller
Published: April 2021

This report is thought as a guide to early hydrographic log sheets of bottle data obtained by the former Institut für Meereskunde, Kiel (IFMK, now integrated into GEOMAR) in the post-war years 1946 to 1956, and which in summer 2018 when a building used by GEOMAR was to clear were not available in digitized format at GEOMAR. The data mostly were taken by the research cutter FK “Südfall” in the Baltic. It turned out that some of these data from 1950 to 1956 were available in digitized form at the on-line data bank of the International Council for the Exploration of the Sea (ICES). Comparison with the original logged data sheets, however, showed that they needed to be improved w/r to time and position and to be completed by missing data. This report shortly describes the methods of sampling and measuring these old data, and the processing steps applied to improve the data set by using the data log sheets before archiving and submitting the now improved and complete data set to data centres for archiving.
Histórico, atualidades e desempenho produtivo da agricultura fluminense
Authors: Oliveira Elton de , Aquino Adriana Maria de , Assis Renato Linhares de , Souza Luan Alves de , Silva Flávio Castro da
Published: April 2021

Simultaneamente, em uma mesma época dos anos 1800, duas políticas ligadas à exploração da terra, deram início ao processo de formação da agricultura, nas regiões montanhosas do estado do Rio de Janeiro. Com objetivo de contextualizar historicamente o desenvolvimento da agricultura fluminense e avaliar o seu desempenho produtivo, foram realizadas uma pesquisa na literatura e uma análise de dados quantitativos da atual produção agrícola. Verificou-se que o desenvolvimento desta atividade foi gerado dentro de uma diversidade de ambientes, pessoas, espécies vegetais, estratégias, políticas e situações econômicas que contribuiu para moldar a sua conformação atual, com características, dinâmica agrária e desempenho, diferenciados. Foi identificado que as regiões serrana e sul, apresentaram os maiores faturamentos por hectare e, também, os municípios com maior diversidade produtiva.
Real de Minas de San Gregorio de Mazapil, frontera del Reino de la Nueva Galicia
Authors: Salas Hernández Juana Elizabeth
Published: April 2021

La conformación territorial de la Monarquía Hispánica estuvo constituida por un proceso de terrirotialidad y desterritorialidad, que llevaron a la formación de fronteras administrativas, sociales,  imaginarias, geográficas y ambientales, mutables en el espacio y en el tiempo.

El  reino de La Nueva Galicia en su conformación territorial durante los siglos XVI-XVII estuvo en una expansión y conquista constantes y por lo tanto la Tierra Adentro se fue modificando, y con ella la frontera. San Gregorio de Mazapil fue un Real de Minas, que desde su fundación en 1568, fungió como frontera administrativa entre el Reino de la Nueva Galicia y el de la Nueva Vizcaya, pero también fue frontera social, geográfica y ambiental. El artículo analiza al Real de Minas como estudio de caso, y reflexiona esas categorías, concentrándolas en la frontera social, geográfica y ambiental, para comprender el proceso de poblamiento y la transformación del paisaje durante los siglos XVI-XVII.
Argumentative Deliberation and the Development of Intellectual Humility and Autonomy in the Classroom
Authors: De Brasi Leandro
Published: April 2021

It is argued that argumentative deliberation, which involves the interpersonal exchange and evaluation of reasons and counter-reasons, is crucial for the generation of epistemic goods given that it helps us eradicate errors and neutralise biases. However, to reap argumentative deliberation’s epistemic benefits, the deliberators need to instantiate a certain intellectual character: in particular, they need to be intellectually humble and autonomous. Given that, it is argued that the educational system should foster the development of the intellectual virtues of humility and autonomy. Moreover, some pedagogical strategies and practices as to how this can be achieved in the classroom are offered.
Criterios de evaluación de la calidad de las argumentaciones por estudiantes universitarios brazileros y colombianos
Authors: Ramírez Nancy , Latorre Diana
Published: April 2021

El presente artículo problematiza sobre la evaluación de la argumentación como proceso complejo que involucra el examen de aspectos estructurales y validez del argumento, así como la situación comunicativa y las características del argumentador. Tiene como objetivo analizar el uso de criterios de evaluación de la calidad de las argumentaciones en estudiantes universitarios de Brasil y Colombia. Utilizó una metodología cualitativa para el análisis de una serie de casos, cinco estudiantes universitarios de psicología brasileños y cinco colombianos, escogidos a través de muestreo intencional. La construcción de datos se realizó en contexto de aula orientado al desarrollo de competencias argumentativas (identificación, producción y evaluación) y la construcción de conocimiento curricular. El corpus de análisis correspondió a evaluaciones online realizadas por estudiantes universitarios mientras examinan las argumentaciones producidas por sus colegas durante situaciones de debate crítico. Los hallazgos muestran comunalidades y  diferencias, en cuanto al empleo de criterios de calidad del argumento (dialécticos, estructurales) y de la argumentación (pragmáticos y reflexivos) en los casos analizados de los dos países. Se evidencian transformaciones intra e interindividuales en la utilización de criterios para emitir juicios sobre los argumentos y las argumentaciones producidas por otras personas.