bluuebunny/crossref_metadata_2025 huggingface dataset:
QuadNet: A Hybrid Framework for Quadrotor Dead Reckoning
Authors: Shurin Artur , Klein Itzik
Published: February 2022

Quadrotor usage is continuously increasing for both civilian and military applications such as surveillance, mapping, and deliveries. Commonly, quadrotors use an inertial navigation system combined with a global navigation satellite systems receiver for outdoor applications and a camera for indoor/outdoor applications. For various reasons, such as lighting conditions or satellite signal blocking, the quadrotor’s navigation solution depends only on the inertial navigation system solution. As a consequence, the navigation solution drifts in time due to errors and noises in the inertial sensor measurements. To handle such situations and bind the solution drift, the quadrotor dead reckoning (QDR) approach utilizes pedestrian dead reckoning principles. To that end, instead of flying the quadrotor in a straight line trajectory, it is flown in a periodic motion, in the vertical plane, to enable peak-to-peak (two local maximum points within the cycle) distance estimation. Although QDR manages to improve the pure inertial navigation solution, it has several shortcomings as it requires calibration before usage, provides only peak-to-peak distance, and does not provide the altitude of the quadrotor. To circumvent these issues, we propose QuadNet, a hybrid framework for quadrotor dead reckoning to estimate the quadrotor’s three-dimensional position vector at any user-defined time rate. As a hybrid approach, QuadNet uses both neural networks and model-based equations during its operation. QuadNet requires only the inertial sensor readings to provide the position vector. Experimental results with DJI’s Matrice 300 quadrotor are provided to show the benefits of using the proposed approach.
Multidimensional Minimum Euclidean Distance Approach Using Radar Reflectivities for Oil Slick Thickness Estimation
Authors: Hammoud Bilal , Daou Georges , Wehn Norbert
Published: February 2022

The need for oil spill monitoring systems has long been of concern in an attempt to contain damage with a rapid response time. When it comes to oil thickness estimation, few reliable methods capable of accurately measuring the thickness of thick oil slick (in mm) on top of the sea surface have been advanced. In this article, we provide accurate estimates of oil slick thicknesses using nadir-looking wide-band radar sensors by incorporating both C- and X-frequency bands operating over calm ocean when the weather conditions are suitable for cleaning operations and the wind speed is very low (<3 m/s). We develop Maximum-Likelihood dual- and multi-frequency statistical signal processing algorithms to estimate the thicknesses of spilled oil. The estimators use Minimum-Euclidean-Distance classification problem, in pre-defined multidimensional constellation sets, on radar reflectivity values. Furthermore, to be able to use the algorithms in oil-spill scenarios, we devise and assess the accuracy of a practical iterative procedure to use the proposed 2D and 3D estimators for accurate and reliable thickness estimations in oil-spill scenarios under noisy conditions. Results on simulated and in-lab experimental data show that M-Scan 4D estimators outperform lower-order estimators even when the iterative procedure is applied. This work is a proof that using radar measurements taken from nadir-looking systems, thick oil slick thicknesses up to 10 mm can be accurately estimated. To the best of our knowledge, the radar active sensor has not yet been used to estimate the oil slick thickness.
Optimisation of Maintenance Policies Based on Right-Censored Failure Data Using a Semi-Markovian Approach
Authors: Sánchez-Herguedas Antonio , Mena-Nieto Angel , Rodrigo-Muñoz Francisco , Villalba-Díez Javier , Ordieres-Meré Joaquín
Published: February 2022

This paper exposes the existing problems for optimal industrial preventive maintenance intervals when decisions are made with right-censored data obtained from a network of sensors or other sources. A methodology based on the use of the z transform and a semi-Markovian approach is presented to solve these problems and obtain a much more consistent mathematical solution. This methodology is applied to a real case study of the maintenance of large marine engines of vessels dedicated to coastal surveillance in Spain to illustrate its usefulness. It is shown that the use of right-censored failure data significantly decreases the value of the optimal preventive interval calculated by the model. In addition, that optimal preventive interval increases as we consider older failure data. In sum, applying the proposed methodology, the maintenance manager can modify the preventive maintenance interval, obtaining a noticeable economic improvement. The results obtained are relevant, regardless of the number of data considered, provided that data are available with a duration of at least 75% of the value of the preventive interval.
Automated License Plate Recognition for Resource-Constrained Environments
Authors: Padmasiri Heshan , Shashirangana Jithmi , Meedeniya Dulani , Rana Omer , Perera Charith
Published: February 2022

The incorporation of deep-learning techniques in embedded systems has enhanced the capabilities of edge computing to a great extent. However, most of these solutions rely on high-end hardware and often require a high processing capacity, which cannot be achieved with resource-constrained edge computing. This study presents a novel approach and a proof of concept for a hardware-efficient automated license plate recognition system for a constrained environment with limited resources. The proposed solution is purely implemented for low-resource edge devices and performed well for extreme illumination changes such as day and nighttime. The generalisability of the proposed models has been achieved using a novel set of neural networks for different hardware configurations based on the computational capabilities and low cost. The accuracy, energy efficiency, communication, and computational latency of the proposed models are validated using different license plate datasets in the daytime and nighttime and in real time. Meanwhile, the results obtained from the proposed study have shown competitive performance to the state-of-the-art server-grade hardware solutions as well.
A Multiblock Approach to Fuse Process and Near-Infrared Sensors for On-Line Prediction of Polymer Properties
Authors: Strani Lorenzo , Vitale Raffaele , Tanzilli Daniele , Bonacini Francesco , Perolo Andrea , Mantovani Erik , Ferrando Angelo , Cocchi Marina
Published: February 2022

Petrochemical companies aim at assessing final product quality in real time, in order to rapidly deal with possible plant faults and to reduce chemical wastes and staff effort resulting from the many laboratory analyses performed every day. In order to answer these needs, the main purpose of the current work is to explore the feasibility of multiblock regression methods to build real-time monitoring models for the prediction of two quality properties of Acrylonitrile-Butadiene-Styrene (ABS) by fusing near-infrared (NIR) and process sensors data. Data come from a production plant, which operates continuously, and where four NIR probes are installed on-line, in addition to standard process sensors. Multiblock-PLS (MB-PLS) and Response-Oriented Sequential Alternation (ROSA) methods were here utilized to assess which of such sensors and plant areas were the most relevant for the quality parameters prediction. Several prediction models were constructed exploiting measurements provided by sensors active at different ABS production process stages. Both methods provided good prediction performances and permitted identification of the most relevant data blocks for the quality parameters’ prediction. Moreover, models built without considering recordings from the final stage of the process yielded prediction errors comparable to those involving all available data blocks. Thus, in principle, allowing final ABS quality to be estimated in real-time before the end of the process itself.
Forwarding in Energy-Constrained Wireless Information Centric Networks
Authors: Marques Daniel , Senna Carlos , Luís Miguel
Published: February 2022

Information Centric Networks (ICNs) have been considered one of the most promising candidates to overcome the disadvantages of host-centric architectures when applied to IoT networks, having the potential to address the challenges of a smart city. One of the foundations of a smart city is its sensory capacity, which is obtained through devices associated with the IoT concept. The more sensors spread out, the greater the ability to sense the city. However, such a scale demands high energy requirements and an effective improvement in the energy management is unavoidable. To improve the energy management, we are proposing an efficient forwarding scheme in energy-constrained wireless ICNs. To achieve this goal, we consider the type of devices, their internal energy and the network context, among other parameters. The proposed forwarding strategy extends and adapts concepts of ICNs, by means of packet domain analysis, neighbourhood evaluation and node sleeping and waking strategies. The proposed solution takes advantage of the neighbourhood to be aware of the moments to listen and forward packets in order to consistently address mobility, improving the quality of content delivery. The evaluation is performed by simulation with real datasets of urban mobility, one from the lagoon of “Ria de Aveiro” and the other from a vehicular network in the city of Porto. The results show that the proposed forwarding scheme resulted in significant improvements in network content availability, in the overall energy saving and, consequently, in the network lifetime.
Experiment and Analysis of Temperature Sensing of Microstructured Fiber with Silver and PDMS Films
Authors: Li Shuguang , Zhang Song , Guo Ying , Li Hongyu , Wang Yujun , Zhou Xue , Cheng Tonglei
Published: February 2022

In this study, the silver mirror reaction was used to coat the silver film on the surface of self-made microstructured fiber (MSF) to stimulate the surface plasmon resonance effect, and Polydimethylsiloxane (PDMS) with a high thermal-optical coefficient was coated on the silver film as temperature-sensitive material. The MSF with silver and PDMS films was coupled with multi-mode fiber on both sides to form the temperature sensor. In this sensor system, the energy is coupled into the cladding of the microstructure fiber by multi-mode fiber, and the surface plasmon resonance can be further excitated in the MSF. When the temperature of the external environment changes, the refractive index of PDMS will also change. At this time, combined with the surface plasmon resonance effect, a resonant absorption peak corresponding to the temperature appears in the transmission spectrum so that the temperature can be measured quickly and accurately. We found that, in the temperature range of 35 °C to 95 °C, the average temperature sensitivity of the sensor during heating and cooling was −0.83 nm/°C and −0.84 nm/°C, respectively. The advantages of this sensor are the simple structure, convenient operation and good reversibility. The relative sensitivity deviation value (RSD = 0.0059) showed that the sensor has high stability. The temperature sensor based on MSF has favorable prospects for use in fields such as medical treatment, biochemical detection and intelligent monitoring.
A Novel Hybrid Trustworthy Decentralized Authentication and Data Preservation Model for Digital Healthcare IoT Based CPS
Authors: Almaiah Mohammed Amin , Hajjej Fahima , Ali Aitizaz , Pasha Muhammad Fermi , Almomani Omar
Published: February 2022

Digital healthcare is a composite infrastructure of networking entities that includes the Internet of Medical Things (IoMT)-based Cyber-Physical Systems (CPS), base stations, services provider, and other concerned components. In the recent decade, it has been noted that the demand for this emerging technology is gradually increased with cost-effective results. Although this technology offers extraordinary results, but at the same time, it also offers multifarious security perils that need to be handled effectively to preserve the trust among all engaged stakeholders. For this, the literature proposes several authentications and data preservation schemes, but somehow they fail to tackle this issue with effectual results. Keeping in view, these constraints, in this paper, we proposed a lightweight authentication and data preservation scheme for IoT based-CPS utilizing deep learning (DL) to facilitate decentralized authentication among legal devices. With decentralized authentication, we have depreciated the validation latency among pairing devices followed by improved communication statistics. Moreover, the experimental results were compared with the benchmark models to acknowledge the significance of our model. During the evaluation phase, the proposed model reveals incredible advancement in terms of comparative parameters in comparison with benchmark models.
Barcelona under the 15-Minute City Lens: Mapping the Accessibility and Proximity Potential Based on Pedestrian Travel Times
Authors: Ferrer-Ortiz Carles , Marquet Oriol , Mojica Laia , Vich Guillem
Published: February 2022

Many academics, urban planners and policymakers subscribe to the benefits of implementing the concept of the 15-Minute City (FMC) in metropolises across the globe. Despite the interest raised by the concept, and other variants of chrono-urbanism, to date, only a few studies have evaluated cities from the FMC perspective. Most studies on the subject also lack a proper well-defined methodology that can properly assess FMC conditions. In this context, this study contributes to the development of an appropriate FMC-measuring method by using network analysis for services and activities in the City of Barcelona (Catalonia, northeastern Spain). By using network analyst and basing our analysis on cadastral parcels, this study is able to detail the overall accessibility conditions of the city and its urban social functions based on the FMC perspective. The resulting spatial synthetic index is enhanced with the creation of partial indexes measuring the impact of education, provisioning, entertainment, public and non-motorized transport, and care facilities. The results show that most residents of this dense and compact city live in areas with proximity to services, that can clearly be labeled as FMC, although there are some shortfalls in peripheral areas. Results validate the FMC methodology as a viable method to highlight spatial inequalities at the microscale level, a valuable tool for the development of effective planning policies.
How Anthropocene Might Save the World: Metamorphosis
Authors: López Ortega Jordi
Published: February 2022

The Anthropocene has created a new cartography. It moves between the rejection of scientific disciplines, overcoming dualism and a change of coordinates with which to interpret the world. The Anthropocene unites two fields of knowledge: geology and anthropology. The “Axial Age” divides daily practices (the World of life) and the objective view of nature (the World of science). The Anthropocene” by Paul J. Crutzen and Eugene Stoermer has two distinct parts; the first establishes “a period of time”, and the second establishes an “epistemic tool”. This paper is intended to illustrate the epistemological dimension of the Anthropocene. Eduard Suess, Antonio Stopani, Pierre Teilhard de Chardin, Vladimir Vernadsky, etc., anticipated the concept of the Anthropocene a century ago. The hypothesis of the earth as a “living organism” is inspired by the Goethean Science or Naturwissenschaft of Johann Wolfgang von Goethe. It reinforces the character of “rupture” that the Anthropocene has. The Gaia Hypothesis, which is built from elements of Earth science systems, sees the pressing need for a global system and to overcome the barriers between disciplines. The Anthropocene allows both ancient quarrels and the roots of philosophical thought to be reviewed. The metamorphosis linked to the Anthropocene represents the interplay between “collapse” and “awakening”. Focus on the objectivity of the “primary effects”—the “public bads”—leads to the imminent ecological apocalypse. If we focus on “secondary effects”, we observe the metamorphosis of “public bads” into “public goods”. The “good” hides behind the “evil”. We are not at the end of Civilization; we are before new beginnings, new rules, new structures. The Anthropocene could save the world thanks to the metamorphosis of our consciousness of the world.
The Value Relevance of Operational Innovation: Insights from the Perspective of Firm Life Cycle
Authors: Ryu Sang-Lyul , Won Jayoun
Published: February 2022

This study investigates the effect of innovation on firm value at each stage of the firm life cycle (FLC): growth, mature and decline stages. Innovation involves improving the yield of input resources and creating new revenue sources. Thus, we define operational innovation as overall efficiency in business operations and divide the operational innovation into technical innovation and scale innovation. We adopt data envelopment analysis to measure a firm’s operational innovation and Dickinson’s method to determine the firm’s life cycle stage. The findings show that the effect of operational innovation on firm value differs among different stages of the firm life cycle, indicating that firms seeking value maximisation should improve the performance of technical innovation at the growth stage and that of scale innovation at the decline stage. In addition, technical innovation is positively related to the firm’s future value at every stage of its life cycle, signifying that the firm’s sustainability is associated with technical innovation rather than scale innovation. This study contributes to the existing literature by presenting the value relevance of the operational innovation that firms should pursue in each life cycle stage.
Everyday Creativity Practiced through a Capsule Wardrobe
Authors: Bang Haeun , DeLong Marilyn
Published: February 2022

This case study examines how practicing a capsule wardrobe can influence one’s creativity and how this daily activity can contribute to sustainability at the level of the individual users. The focus is on little-c creativity, which highlights everyday creativity practiced through everyday activities, such as dressing. Various capsule wardrobe projects that focus on voluntary simplicity are emerging in the U.S. This study begins with the premise that capsule wardrobes can provide individuals with an opportunity to enhance their creativity by experiencing a limited wardrobe. In addition, such a limited wardrobe could help contribute to a circular fashion economy by reducing the overconsumption of clothing. Seven female volunteers participated in the eight-week capsule wardrobe project. The multiple data collection methods included an online survey, creativity tests, in-depth interviews, and daily journals. In eight weeks, the participants learned about wardrobe strategies and developed innovative dressing habits through creating and managing their capsule wardrobes. The findings show that intrinsic motives, including satisfaction and enjoyment, play important roles in enhancing creativity. Moreover, this project helped the participants to recognize what to purchase, how to wear and care, and how to discard clothes, which can result in a reduction in thoughtless overspending on clothing.
On the In-Die Conditions and Process Parameter Settings in Indirect Squeeze Casting
Authors: Jarfors Anders E. W. , Du Andong , Zhou Jie , Zheng Jinchuan , Yu Gegang
Published: February 2022

The current study investigated the relationship between the process settings and in-die conditions to understand the transitions between the different filling stages and the final pressure settings in indirect squeeze casting. A pressure sensor was placed in the die cavity to indirectly measure the evolution of pressure over time and monitor the filling process to study the in-die conditions. The pressure–time profile was analysed, and the maximum pressure and acceleration of the pressure were investigated empirically. The main conclusion of this paper is that the use of increasing intensification pressures is positive for the casting soundness. However, it must be stressed that there is a strong effect from the intensification pressure on the acceleration that has a far more reaching influence than the actual speed setting. A direct practical outcome is that a high intensification pressure has a more substantial effect than the second stage fill speed. This translates directly to a possibility of reducing the second stage fill speed to stabilise the fill front. Furthermore, this also pinpoints the need for improvements in hydraulics system designs to decouple the intensification pressure from the filling piston motion control.
Strongly Nonlinear Diffusion in Turbulent Environment: A Problem with Infinitely Many Couplings
Authors: Antonov Nikolay V. , Babakin Andrew A. , Kakin Polina I.
Published: February 2022

The field theoretic renormalization group is applied to the strongly nonlinear stochastic advection-diffusion equation. The turbulent advection is modelled by the Kazantsev–Kraichnan “rapid-change” ensemble. As a requirement of the renormalizability, the model necessarily involves infinite number of coupling constants (“charges”). The one-loop counterterm is calculated explicitly. The corresponding renormalization group equation demonstrates existence of a pair of two-dimensional surfaces of fixed points in the infinite-dimensional parameter space. If the surfaces contain infrared attractive regions, the problem allows for the large-scale, long-time scaling behaviour. For the first surface (advection is irrelevant), the critical dimensions of the scalar field Δθ, the response field Δθ′ and the frequency Δω are nonuniversal (through the dependence on the effective couplings) but satisfy certain exact identities. For the second surface (advection is relevant), the dimensions are universal and they are found exactly.
The features of intrafamilial relationships in infertile marriage in the in-vitro fertilization (IVF) program
Authors:   FSAEI HE Pirogov Russian National Research Medical University of the Ministry of Health of Russia, Moscow, Gardanova Zhanna Robertovna , Khritinin Dmitriy Fedorovich ,   Russian Academy of Sciences,FSAEI HE Pirogov Russian National Research Medical University of the Ministry of Health of Russia, Moscow, Voronina Taisa Igorevna ,   Pirogov Russian National Research Medical University of the Ministry of Health of Russia, Moscow, Lapina Vera Sergeevna ,   FSBI «V. I. Kulakov National Medical Research Center of Obstetrics, Gynaecology and Perinatology of the Ministry of Health of the Russian Federation
Published: February 2022

The paper researches the features of intrafamilial relationships of women with reproductive health disorders. Due to reproductive system dysfunction, women encounter physiological and somatic disorders, unmet needs of parenthood, family relations deterioration. In this particular case, infertility concerns both partners and can lead to severe stress, which, therefore, affects not only emotional state but also physiological one. The paper study the impact of infertility on women’s psychological condition and relationships with their partners.
Cubital canal syndrome: modern approaches to diagnosis and treatment
Authors:   FBHI Privolzhsky District Medical Center, Nizhny Novgorod, Yarikov Anton Viktorovich , Shpagin Maksim Vladimirovich ,   SBHI NR City Clinical Hospital No. 39, Nizhny Novgorod, Perlmutter Olga Aleksandrovna ,   Federal State Budgetary Educational Institution of Higher Education «Privolzhsky Research Medical University», SBHI NR City Clinical Hospital No. 39, Fraerman Alexander Petrovich ,   Federal State Budgetary Educational Institution of Higher Education «Volga Research Medical University», SBHI NR City Clinical Hospital No. 39, Mukhin Alexey Stanislavovich ,   FSBI «Privolzhsky Research Medical University», SBHI NR City Clinical Hospital No. 40, Stolyarov Ilya Igorevich ,   City Clinical Hospital No. 39, Nizhny Novgorod, Yaksargin Aleksey Vladimirovich ,   City Clinical Hospital No. 40, Nizhny Novgorod, Sosnin A.G. ,   FBHI Privolzhsky District Medical Center of the FMBA of Russia, Nizhny Novgorod
Published: February 2022

Cubital canal syndrome is one of the most common tunnel mononeuropathies. The paper considers the etiology, pathogenesis, risk factors of development, principles of clinical and instrumental diagnosis and treatment of patients with cubital canal syndrome. The most common operations indicated for this pathology are also described in detail: open decompression, endoscopic decompression, microdecompression, subcutaneous transposition, intramuscular transposition and axillary transposition, medial epicondylectomy. The outcomes of various treatment methods are described based on the data of modern scientific literature. The choice of surgical treatment is based on several factors, and the same surgical method cannot be used in all clinical situations. English version of the article is available at URL: https://panor.ru/articles/cubital-tunnel-syndrome-current-approaches-to-diagnosis-and-treatment/78379.html
La vulneración del derecho fundamental de las víctimas de violencia sexual
Authors: Crisóstomo Talla Karina Natali
Published: February 2022

Con frecuencia se mencionan en los medios de comunicación cómo las mujeres son víctimas de violencia sexual. El estudio muestra un análisis de la vulneración del derecho fundamental de las víctimas de violencia. El estudio se llevó a cabo mediante la revisión bibliográfica de artículos científicos de revistas usando motores de búsquedas como Google Académico, además de indexadores o plataformas como en Scielo, Redalyc, Scopus, Eric, entre otras. Como resultado de la investigación se evidenció que las mujeres han sufrido de violencia sexual, causando un gran impacto y desprecio entre las personas y la sociedad. Se concluye que las mujeres con mayor riesgo de sufrir violencia sexual son aquellas que dependen económicamente de sus parejas, mujeres con estudios primarios y secundarios, con poca autoestima personal, con miedo e incapaces de denunciar al agresor.
Combating Illegal, Unreported and Unregulated (IUU) Fishing and Removing Yellow Card From European Commission (EC): Vietnam's Determined Actions
Authors:   Institute of Science and Fishing Technology, Nha Trang University, Nha Trang, Khanh Hoa 57000, Viet Nam, PHUONG TO VAN , POMEROY ROBERT S.
Published: February 2022

Illegal, unreported and unregulated (IUU) fishing activities have negatively impacted Vietnam fisheries. As a result, the European Commission (EC) issued a yellow card warning in October 2017. This paper examines how Vietnam has responded to the EC’s recommendations to address the yellow card. The analysis used a mix of documents analysis and online group discussion approaches. Although Vietnam has made considerable efforts to halt IUU fishing and clear the yellow card, the results are still insufficient to remove the yellow card. However, the yellow card has brought about positive signals for Vietnamese fisheries management. It is also an opportunity for the national marine fisheries sector and fishers communities to be more responsible in fishing. Institutional and legal regulations have been refined to be in line with international rules and enormously improved the enforcement capacity of the fisheries management system for fishers to end the situation of fishing vessels engaged in illegal fishing in the waters of Vietnam and other countries. Recommended actions to address the yellow card include finalisation of the fisheries guidance decrees in line with obligations to combating IUU fishing, more robust sanctions, strengthening the monitoring, control and surveillance (MCS) system, information dissemination and education of the fisheries law and relevant regulations, and apply an electronic catch documentation and traceability (eCDT) system.
DEVELOPMENT OF A PERSPECTIVE DESIGN OF A RECUPERATIVE HORSE DEVICE FOR A FOREST TRAIN
Authors: Posmetev Valeriy , Nikonov Vadim , Matyashov Aleksey , Sil'chenko A.
Published: February 2022

The place and importance of the use of timber trucks among all types of timber transport involved in the process of removing timber from the felling site to consumers is described. The main advantages and disadvantages of using a timber tractor with a dismantling trailer for transportation of long timber while driving on insufficiently equipped timber roads are considered. The most significant drawback is revealed, which consists in the structural imperfection of the conical structure of the timber tractor. A promising design of a recuperative conic device of a timber road train is proposed. It describes its main advantages from installation on a timber tractor with a dismantling trailer, as well as the effect of such a design of a bent device on the operating efficiency of a timber road train.
A Study of Students’ Perception: Identifying EFL Learners’ Problems in Speaking Skill
Authors: Riadil Ikrar Genidal
Published: February 2022

Language is a pivotal aspect of human being. By learning, language people can communicate with each other, get information from one to another and interact. Unfortunately, in the real condition, it is still difficult for Indonesian students to practice their English ability in daily conversation. This paper will discuss the student’s perception within implementation problems and its solutions. The aim of this study is to identify the speaking problems experienced by EFL learners in speaking English. The researcher conducted this study using the qualitative research method. To gather the results, the researcher uses a questionnaire centered on the Penny Tang (1997) on speaking problems in learning a foreign language. The study’s data is collected from thirty-five students from Tidar University in Magelang. The result of the study is that the students have problems in learning speaking English. The most problematic for the students is mother tongue use, 77% students use their other tongue in English class and 83% agree that mother tongue is easier than English.
Overview Of Aggressive Behavior In School-Age Children At SD Negeri 064990 Medan
Authors: Sibarani Roulina
Published: February 2022

Aggressive behavior can be understood as a behavior that aims to hurt others, both verbally and nonverbally, physically or psychologically and directly or indirectly. Aggressive behavior of school-age children that arise at the age of 6-14 years in the form of anger, irritation, envy, greed, jealousy, and likes to criticize. The purpose of this study was to determine the description of aggressive behavior in school-age children at SD Negeri 064990 Medan. The design used in this research is descriptive. The population in this study were school-aged children in grades IV, V, and VI at SD Negeri 064990 Medan. The sample is 180 respondents using total sampling technique. Data was collected using the Aggressive Behavior questionnaire. The results showed that most of the respondents had aggressive behavior in the moderate category as many as 98 students (54.4%). From the results of this study, it is hoped that the community and families will be better at providing education in the family as well as providing children with social skills and providing information about aggressive behavior to reduce the number of children who behave aggressively. Activities can be carried out through counseling to the community, especially families, to better understand aggressive behavior in children. From the results of this study, it is hoped that the community and families will be better at providing education in the family as well as providing children with social skills and providing information about aggressive behavior to reduce the number of children who behave aggressively. Activities can be carried out through counseling to the community, especially families, to better understand aggressive behavior in children. From the results of this study, it is hoped that the community and families will be better at providing education in the family as well as providing children with social skills and providing information about aggressive behavior to reduce the number of children who behave aggressively. Activities can be carried out through counseling to the community, especially families, to better understand aggressive behavior in children.
The management of administrative indicators and the impact of COVID-19 on business, the case of the locality of Hecelchakán
Authors: BACAB-SANCHEZ José R.
Published: February 2022

The chaos that micro-businesses are going through due to the surprise of the mandatory temporary closure in the City of Hecelchakán, Campeche is exacerbated by the uncertainty of its employees. For this reason, it is urgent to describe the general administrative indicators of the micro-businesses of Hecelchakán. The study presented in this article is descriptive, the design is non-experimental transactional, the method was the study of the field and the technique is the survey, with the questionnaire as an instrument. The results indicate that the level of customer service in the electrical appliance micro-businesses in the town of Hecelchakán is good, although incomplete. 100% of them handle a guarantee on their products, which means a high possibility of demand. Three out of four businesses obtain their sales on credit and in cash. The current health situation put and continues to put household appliance micro-businesses at risk as these at the beginning of the COVID-19 pandemic were forced to temporarily close.
ASSESSMENT OF SYNCHRONY AND RHYTHM OF CASH FLOWS OF AGRICULTURAL ENTERPRISES
Authors:   Volga Scientific Research Institute of Economics and Organization of Agriculture - a separate structural subdivision of the Saratov Scientific Center of the Russian Academy of Sciences, Chernyaev A. A. , Sharikova I. V. ,   Saratov State Agrarian University named after N. I. Vavilov
Published: February 2022

Ensuring careful control over the process of formation of funds is established among the priorities in the state program documents that determine the prospects for the agricultural sector de-velopment. Constant close monitoring of the synchrony and rhythm of positive and negative cash flows by periods, especially spring field work and harvesting, when the expenses of enter-prises and organizations significantly exceed the revenue part, become particularly relevant and important. The article uses economic and statistical methods to assess these quantitative and qualitative characteristics of cash flows of an agricultural enterprise, examines their dynamics; substantiates the degree of fluctuation of various types of flows by seasons. Based on the analy-sis of cash flows of a typical agricultural enterprise for the Saratov region, the authors assess their elasticity, establish the relationship in the change of positive and negative cash flows. Dur-ing the analyzed period at the enterprise under consideration, an increase in the uniformity of cash flow formation, a slowdown in fluctuation and, consequently, an increase in rhythm, indi-cating a more thoughtful approach in the formation of the monetary policy of the enterprise, are clearly traced. A steady excess of inflow over outflow of funds will certainly contribute to solving possible problems with solvency, liquidity, and the growth of rhythm and uniformity of cash flows. Nevertheless, over the past three years, the enterprise has not been able to overcome the asynchrony in the formation of cash flows, the consequences of which are manifested in an acute shortage of funds or in their «stagnation» and «corrosion» from inflation.
MANAGEMENT OF THE COMPANY’S ORGANIZATIONAL CULTURE BASED ON THE PRINCIPLES OF CHANGE MANAGEMENT AND AGILE METHODS
Authors:   National Research Mordovian State University named after N.P. Ogarev, Leonenko E. A. , Kunev S. V. ,   National Research Mordovian State University named after N.P. Ogarev
Published: February 2022

Agile is a flexible iterative- incremental approach to project and product management, focused on the dynamic formation of requirements and ensuring their implementation as a result of constant interaction within self-organizing working groups consisting of specialists of various profiles. There are many methods based on agile ideas, the most popular of which are Scrum and Kanban. The main weakness of classical project management is intolerance to changes. Agile-methods are based on four fundamental values to which the corporate culture of the company, that has embarked on the way of transition to flexible management, should correspond: individuals and interactions are more important than processes and tools; working products are more important than comprehensive documentation; customer collaboration is more important than working out the details of the contract; readiness for changes is more important than following the original plan. The areas of application of the agile-approach in Russia coincide with global trends: the top three industries that most actively use flexible project systems include IT and the financial sector. Abroad, in contrast to Russian realities, manufacturing companies practically do not use agile. Russian enterprises are not afraid to experiment with new approaches. According to Scrumtrek, in 2018, flexible project systems were quite popular in the domestic industry and the oil and gas industry. The number of such companies in 2018 increased by 11% compared to 2017, and the number of agile-teams whose work results in tangible goods almost doubled last year, from 4.6 to 8%. The main flexible project systems used by Russian manufacturing companies are LeanStartup, Lean, better known as lean manufacturing, often in combination with DesignThinking. The introduction of flexible design techniques, or agile-transformation, is perceived by many people as a way to instantaneous solution of most of the existing problems. But in practice, it turns out that it is not as easy to carry out agile- transformation effectively as it seemed: some approaches do not work partially or at all, employees (from an ordinary manager to a top оne) desperately resist innovations, more time is spent on the transition to flexible project management than we would like. Agile itself is not a project management method. This is a set of ideas and principles of how to implement projects. Already on the basis of these principles and best practices, separate flexible methods or, as they are sometimes called, frameworks have been developed: Scrum, Kanban, Crystal and many others. These methods may be quite different from each other, but they follow the same principles.
ISSUES OF AUTOMATION OF PROJECT MANAGEMENT AT THE ENTERPRISE (BASED ON MATERIALS OF MAKHACHKALINSKII GORMOLZAVOD JSC)
Authors:   Dagestan State University, Magomedbekov G. U. , Magomedova F. G. ,   Dagestan State University, Eldarov E. M. ,   Dagestan State University
Published: February 2022

The article discusses the experience of implementing and using an automated project management system (ASM) at the Dagestan food industry enterprise – Makhachkalinskii Gormolzavod OAO (Makhachkala city milk factory). The SWOT analysis used by the authors makes it possible to assess the current state and functional features of the enterprise under consideration, as well as to determine strategic goals for improving its management, and the use of the maximum capabilities of the automated project management system was accepted as the main one. According to the authors, it is in this approach to management in current conditions that the main reserves for improving the efficiency of functioning, rational use of limited material, labor and financial resources, optimization of the indicators of business and financial performance of Makhachkalinskii Gormolzavod OAO are laid. Taking into account the given management priority, Bitrix24 computer software product, which significantly increases the efficiency of the enterprise by improving the control of working hours, business communication of employees with each other and the manager, optimization of the organizational structure and automation of business processes, has been successfully mastered at the enterprise. For the full-fledged operation of this automated control system in the market environment, it is important to combine its functions with the capabilities of domestic accounting programs, from which 1C:Enterprise has been taken at the enterprise. The possibilities and advantages of the customer relationship management system CRM (Customer Relationship Management) as a Bitrix24 software application are also described. By means of simple economic and mathematical calculations, the authors show the possibility of increasing labor productivity at the enterprise up to 80%. At the same time, the annual economic effect of the introduction of the automated control system at the Makhachkalinskii Gormolzavod OAO is estimated at 1.9 million rubles.
Educação Superior no Brasil e desigualdades (1964 – 2019)
Authors: Oliveira Ana Luíza Matos de
Published: February 2022

O Brasil tem um histórico de desigualdades de renda, de gênero, de cor/raça e regional, que se refletem também no acesso à Educação Superior (ES). A Constituição Federal de 1988 (CF 88, a “Constituição Cidadã”), inspirada nos moldes do chamado Estado de Bem Estar Social, estabeleceu direitos em prol da inclusão social e redução das desigualdades, em frontal oposição ao modelo que havia sido adotado na ditadura militar (1964-1985). Neste sentido, o artigo visa realizar um panorama de como o marco legal e as políticas públicas adotadas no Brasil afetam as desigualdades de acesso à desde 1964, passando pela Reforma de 1968, a CF 88 e a Emenda Constitucional 95/2016, relacionando tais períodos e as políticas adotadas à história e à política econômica da época. Argumenta-se que a sociedade brasileira tentou romper sua história de exclusão a partir da CF 88, ampliando a participação social, os direitos e o financiamento para a questão social, em especial para a ES, mas tal trajetória é interrompida nos anos recentes.
Doença por Coronavírus de Alto Risco em 2019: Os Principais Resultados do Estudo de Coorte Multicêntrico CoronaHeart
Authors: Gilson Soares Feitosa-Filho  , Gabriella S. Sodré  , Rhanniel Theodorus-Villar
Published: February 2022

Background: Patients with Coronavirus Disease 2019 (COVID-19) may present high risk features during hospitalization, including cardiovascular manifestations. However, less is known about the factors that may further increase the risk of death in these patients.Methods: We included patients with COVID-19 and high-risk features according to clinical and/or laboratory criteria at 21 sites in Brazil from June 10th to October 23rd of 2020. All variables were collected until hospital discharge or in-hospital death.Results: A total of 2546 participants were included (mean age 65 years; 60.3% male). Overall, 70.8% were admitted to intensive care units and 54.2% had elevated troponin levels. In-hospital mortality was 41.7%. An interaction among sex, age and mortality was found (p = 0.007). Younger women presented higher rates of death than men (30.0% vs 22.9%), while older men presented higher rates of death than women (57.6% vs 49.2%). The strongest factors associated with in-hospital mortality were need for mechanical ventilation (odds ratio [OR] 8.2, 95% confidence interval [CI] 5.4–12.7), elevated C-reactive protein (OR 2.3, 95% CI 1.7–2.9), cancer (OR 1.8, 95 %CI 1.2–2.9), and elevated troponin levels (OR 1.8, 95% CI 1.4–2.3). A risk score was developed for risk assessment of in-hospital mortality.Conclusions: This cohort showed that patients with COVID-19 and high-risk features have an elevated rate of in-hospital mortality with differences according to age and sex. These results highlight unique aspects of this population and might help identifying patients who may benefit from more careful initial surveillance and potential subsequent interventional therapies.
Patogenisitas Metarhizium huainamdangense Isolat Dumoga Timur Terhadap Wereng Batang Coklat (Nilaparvata lugens) Pada Tanaman Padi Sawah
Authors: Wongkar Jusak , Tarore D , Rimbing J
Published: February 2022

Brown planthoppers have been reported to be resistant to various types of insecticides. One of the environmentally friendly controls is the use of entomopathogenic fungi. This study aims to test the effectiveness of the entomopathogenic fungus M. huainamdangense local isolates against brown planthoppers. Pathogenicity testing of local isolates of M. huainamdangense used a completely randomized design (CRD) with five treatments, namely K1 (Density 106), K2 (Density 107), K3 (Density 108), K4 (Density 109) and K0 as control. Each treatment was repeated 5 (five) times. The results showed that the fastest treatment to kill insects up to 100% was in the K4 treatment (density 109). The results of the probit analysis showed the LT50 value in the conidium density treatment 109 (K4) at 1.6 days. Meanwhile, the LC50 value showed a concentration of 108.9 conidium/ml on the second day. The use of a lower concentration of conidia density was able to kill 50% of insects in a longer time. Keywords: Metarhizium huainamdangense; entomopathogen; Nilaparvata lugens ABSTRAKWereng coklat telah dilaporkan resisten terhadap berbagai jenis insektisida. Salah satu pengendalian yang ramah lingkungan, yaitu dengan penggunaan jamur entomopatogen. Penelitian ini bertujuan untuk menguji keefektifan jamur entomopatogen M. huainamdangense isolat lokal terhadap wereng coklat. Pengujian patogenisitas isolat lokal M. huainamdangense menggunakan Rancangan Acak Lengkap (RAL) dengan lima perlakuan yaitu perlakuan K1 (Kerapatan 106), K2 (Kerapatan 107), K3 (Kerapatan 108), K4 (Kerapatan 109) dan K0 sebagai kontrol. Setiap perlakuan diulang 5 (lima) kali. Hasil penelitian menunjukkan bahwa perlakuan yang paling cepat mematikan serangga hingga 100% yaitu pada perlakuan K4 (Kerapatan 109). Hasil analisis probit menunjukkan nilai LT50 pada perlakuan kerapatan konidium 109 (K4) yaitu pada 1,6 hari, sedangkan nilai LC50 menunjukkan konsentrasi 108,9 konidium/ml pada hari kedua. Penggunaan konsentrasi kerapatan konidia yang lebih rendah mampu mematikan 50% serangga dalam waktu yang lebih lama. Kata kunci: Metarhizium huainamdangense; entomopatogen; Nilaparvata lugens