bluuebunny/crossref_metadata_2025 huggingface dataset:
Contribution to traditional knowledge used for the prevention and healing of the Covid-19 symptoms by local people of Deng-Deng massif forest Cameroon
Authors: Inimbock Sorel Léocadie , Chimi Djomo Cédric , Enamba Yaya Christian , Tsemo Tchuenwo Diane Christelle , Somnjom Edwin Dinayen , Mounmenie Kpoumie Hubert , Bogne Tatcheu Line Véronique , Noudem Jolie Claire , Nanfack Tchatchouang Chanceline Laure , Misse Alain Christian
Published: July 2021

SARS-CoV-2 which causes the corona virus disease 2019 (Covid-19) continues to spread worldwide, causing death and panic in rural communities with little emergency medical facilities. The efficiency of traditional medicine has become the priority to prevent this pandemic. The aim of this study was to identify local knowledge and forest plant species used by local populations of the Deng-Deng massif forest against the Covid-19 pandemic. Semi-structured questionnaires was used; and inquired including the naturopaths, healers and heads of households (men and/or women). A total of 405 people were interviewed in 22 villages. Available lexicons were used to find correspondence to the vernacular/common names provided by inquired people. Five major Covid-19 symptoms including fever, headache, cough, dyspnea, cold/nasal discharge were identified by local people and 48 forest plants species were identified to prevent these symptoms, while 26 plant species were identified as treatment of specific Covid-19 symptoms. The frequent use of the various plant species for the prevention of the Covid-19 emerged as follow: Alstonia booneii (95%), Annickia chlorantha (72%), Picralima nitida (50%), Pycnanthus ivorensis (20%) and Milicia excelsa (16%). This study confirms the importance of forest plant species in traditional medicine against the Covid-19 pandemic.
Ten species of liverworts, addition to Bryoflora of Andhra Pradesh, India
Authors: Sreenath Ananthaneni , Ravi Prasad Rao Boyina
Published: July 2021

Ten species of liverworts viz., Exormotheca tubifera Kashyap, Fossombronia himalayensis Kashyap, Cheilolejeunea intertexta (Lindenb.) Stephani, C. krakakammae (Lindenb.) R.M. Schust., Jungermannia appressifolia Mitt., J. macrocarpa Stephani, J. rubripunctata (S. Hatt.) Amakawa, Plagiochila beddomei Steph., P. chinensis Stephani and P. fruticosa Mitt., collected from different localities of the state are reported as new distributional records to Andhra Pradesh.
Grapevine decline is associated with difference in soil microbial composition and activity
Authors: Darriaut Romain , Martins Guilherme , Dewasme Coralie , Mary Séverine , Darrieutort Guillaume , Ballestra Patricia , Marguerit Elisa , Vivin Philippe , Ollat Nathalie , Masneuf-Pomarède Isabelle , Lauvergeat Virginie
Published: July 2021

Grapevine decline is a top concern in viticulture worldwide and is often associated with many biotic and abiotic factors. Grape trunk diseases and viruses are some of the most frequently identified causes of vine dieback. However, a decline is sometimes observed when no mineral deficiency or excess, or pathogenic causes can be identified. Soil enzymatic and microbial activities are relevant bio-indicators since they are known to influence vine health. Grapevine associated microbiota, linked to vine fitness, is known to be influenced by soil microbiota coming from the microbial pool inhabiting the vineyard. This work describes the microbial diversity and activity of four different vineyard plots of the Bordeaux region, selected due to the presence of localised declining areas unexplained yet by disease symptoms. Soils were sampled in declining areas and areas within the same plot showing no decline symptoms, during autumn and spring periods. Significant differences in enzymatic activities, microbial biomass and activity were found among soils even if those soils presented quite similar physicochemical characteristics that could not explain these observed declines. The results of enzymatic assays distinguished patterns in autumn and spring periods with an overall greater enzymatic activity in soils from non-declining areas. This work suggests that soils displaying decline symptoms present a dysbiosis in functionality and diversity which is linked to vine health.
A Study of the Effect of Combining Multi-Sensor Signals and Cutting Chip Color on Tool Life Prediction
Authors: Chen Shao-Hsien , Gao Min-Sheng
Published: July 2021

Often, engineers with machining experience often judge machining state and tool life according to chips’ features. Engineers' experience is digitized in this study. During the cutting process, the cutting tool coming in contact with the workpiece produces a shear zone, which causes plastic deformation and shear slip. The chips closest to the shear zone can directly show the state of the tool and workpiece when the material is SKD61. This study used chip color, vibration, and current signal integration for prediction of machining state and cutting tool life. When the cutting tool wears increased, the chip surface color changed in the following way: purpleè purple blueè blue ècyan, or even green and yellow. When the cutting tool was in the accelerating wear phase, the color change was particularly obvious. The Back-Propagation Levenberg–Marquardt (BP-LM) predictive methodology was used to compare the predictive ability of voltage, vibration signal, and chip color. The Mean Absolute Percentage Error (MAPE) for the voltage signal was 12.28%, for the vibration signal it was 11.38%, and for the chip color combined with multi-sensor characteristics it was 7.85%. The MAPE of the chip color was the smallest. Using the General Regression Neural Network (GRNN) methodology, the MAPE for the voltage signal was 10.74%, for the vibration signal 7.96%, and for the chip color combined with multi-sensor characteristics was 6.59%. The MAPE of the chip color was the smallest. Obviously, the chip color combined with multi-sensor signals provided better predictive results than the vibration signal or voltage signal alone. There is currently no research on the usefulness of monitoring chip color for tool life prediction.
Synthetic mRNAs; Their Analogue Caps and Contribution to Disease
Authors: Kyriakopoulos Anthony , McCullough Peter
Published: July 2021

The structure of synthetic mRNAs as used in vaccination against cancer and infectious diseases contain specifically designed caps followed by sequences of the 5’ untranslated repeats of β-globin gene. The strategy for successful design of synthetic mRNAs by chemically modifying their caps aims to increase resistance to the enzymatic deccapping complex, offer a higher affinity for binding to the eukaryotic translation initiation factor 4E (elF4E) protein and enforce increased translation of their encoded proteins. However, the cellular homeostasis is finely balanced and obeys to specific laws of thermodynamics conferring balance between complexity and growth rate in evolution. An overwhelming and forced translation even under alarming conditions of the cell during a concurrent viral infection, or when molecular pathways are trying to circumvent precursor events that lead to autoimmunity and cancer, may cause the recipient cells to ignore their differential sensitivities which are essential for keeping normal conditions. The elF4E which is a powerful RNA regulon and a potent oncogene governing cell cycle progression and proliferation at a post-transcriptional level, may then be a great contributor to disease development. The mechanistic target of rapamycin (mTOR) axis manly inhibits the elF4E to proceed with mRNA translation but disturbance in fine balances between mTOR and elF4E action may provide a premature step towards oncogenesis, ignite pre-causal mechanisms of immune deregulation and cause maturation (aging) defects.
Analysis of Tidal Accelerations in the Solar System and in Extrasolar Planetary Systems
Authors: Paschek Klaus , Roßmann Arthur , Hausmann Michael , Hildenbrand Georg
Published: July 2021

Volcanism powered by tidal forces inside celestial bodies can provide enough energy to keep important solvents for living systems in the liquid phase. Moreover, tidal forces and their environmental consequences may strongly influence habitability of planets and other celestial bodies and may result in special forms of live and living conditions. A prerequisite to calculate such tidal interactions and consequences is depending on simulations for tidal accelerations in a multi-body system. Unfortunately, from measurements in many extrasolar planetary systems only few physical and orbital parameters are well enough known for investigated celestial bodies. For calculating tidal acceleration vectors under missing most orbital parameter exactly, a simulation method is developed that is only based on a few basic parameters, easily measurable even in extrasolar planetary systems. Such a method as being presented here, allows finding a relation between the tidal acceleration vectors and potential heating inside celestial objects. Using values and results of our model approach to our solar system as a “gold standard” for feasibility allowed us to classify this heating in relation to different forms of volcanism. This “gold standard” approach gave us a classification measure for the relevance of tidal heating in other extrasolar systems with a reduced availability of exact physical parameters. We would help to estimate conditions for the identification of potential candidates for further sophisticated investigations by more complex established methods like viscoelastic multi-body theories. As a first example, we applied the procedures developed here to the extrasolar planetary system TRAPPIST-1 as an example to check our working hypothesis.
Notion of Valued Set
Authors: Garrett Henry
Published: July 2021

The aim of this article is to introduce the new notion on a given graph. The notions of valued set, valued function, valued graph and valued quotient are introduced. The attributes of these new notions are studied. Valued set is about the set of vertices which have the maximum number of neighbors. The kind of partition of the vertex set to the vertices of the valued set is introduced and its attributes are studied. The behaviors of classes of graphs under these new notions are studied and the algebraic operations on these sets in the different situations get new result to understand the classes of graphs, these notions and the general graphs better and more.
Physical Vapor Deposited Silver (AG) Based Metal-Dielectric Nanocomposites for Advanced Thin-Film and Coating Applications
Authors: Nur-E-Alam Mohammad , Basher Mohammad Khairul , Vasiliev Mikhail , Das Narottam
Published: July 2021

Metallic thin-film materials and nanoparticles (mainly Silver (Ag)-based) are recently being used in many nano-technological applications including sensors, reflective heat-mirror coatings, and antibacterial coatings as well. The physical vapor deposition technique attracts significant attention for Ag-based nanocomposites with tailoring the structural and optical properties of metallic thin films thus allowing further improvements and application possibilities in various existing fields namely electronics, catalysis, magnetics, optics in alongside the environment and health and new emergent fields in, particularly thin-film coatings. This study highlights the preparation, characterization, properties, and possible future application directions of several types of Silver (Ag)-based nanocomposite thin films prepared by using physical vapor deposition techniques.
Associations between Bioactive Algal Biomaterial Supplementation, Dietary Pattern and Metabolic Risk Markers in Japanese Women
Authors: Ngatu Nlandu Roger , Hirao Tomohiro , Ikeda Mitsunori
Published: July 2021

Unhealthy diet can lead to the development of metabolic disorders, and studies have shown strong associations between those conditions and biomarkers, such as c-reactive protein (CRP) and adiponectin. Recently, marine algal biomaterials have been investigated extensively due to their health benefits. We report on associations between metabolic markers and bioactive nutrients from diet and Sujiaonori algal biomaterial (SBM), a natural adiponectin modulation inducer (NAMI) containing 60% of ulvan-rich fiber, in a sample of Japanese women. The study comprised dietary survey and intervention conducted in Kochi, Japan (2016-2017), involving 31 women who completed a dietary survey and provided biospecimen for CRP and adiponectin measurement using ELISA. Sixteen women received 3g SBM daily for one month and 15 others (controls) received 3g of corn starch. In SBM group, mean age was 23.06 (2.21) years [vs. 23.06 (1.55)], BMI was 21.11 (0.59) kg/m2 [vs. 21.43 (0.60) in controls], and daily intake of n3-PUFA [3.83 (0.24) vs. 2.21 (0.33) mg/day; p=0.042] and total fiber [364.12 (2.45) vs. 48.13 (1.57) mg/day in controls; p=0.000] were markedly higher. Furthermore, CRP was inversely associated with total fiber, total n3-PUFA, SBM-n3PUFA, vitamin D and vitamin B6, whereas adiponectin was strongly and positively associated with SBM-fiber and total n3-PUFA. Thus ulvan-rich SBM supplement, which contains ulvan-rich fiber and n3-PUFA, might be beneficial in reducing metabolic risk.
U-Shape by Quadratic Equation: A Best-fit for Modelling Hemodynamic Changes in the DCCS Task
Authors: Li Hui , Wu Dandan , Yang Jinfeng , Xie Sha , Luo Jiutong , Chang Chunqi
Published: July 2021

General Linear Modelling (GLM) has been widely employed to estimate the hemodynamic changes evoked by cognitive processing, which are more likely to be nonlinear than linear. First, this study re-analyzed the fNIRS data (N = 38, Mage = 5.0 years, SD = 0.69 years, 17 girls) collected in the Mixed-Order Design Dimensional Change Card Sort (DCCS) task. The results indicated that the quadratic equation was better than GLM to model HbO changes in this task. Second, analysis of a new set of data indicated that the Habit-DisHabit design of DCCS was more effective in identifying the neural correlates of cognitive shifting than the Mixed-Order Design. Third, this study found that the Non-users were more attentive and engaged than the Heavy-users, with a slower but more steady increase of brain activation in BA8 and BA9.
Biochemical Basis for the Time-of-day Effect on Glufosinate Efficacy Against Amaranthus palmeri
Authors: Takano Hudson K , Dayan Franck E
Published: July 2021

Glufosinate, a glutamine synthetase (GS) inhibitor, often provides variable weed control depending on environmental conditions such as light, temperature and humidity at the time of application. Midday applications normally provide improved efficacy compared to applications at dawn or dusk. We investigated the physiological, molecular, and biochemical basis for the time-of-day effect on glufosinate efficacy in Amaranthus palmeri. GS1 and GS2 gene expression and protein abundance were assessed in different parts (young leaves, old leaves, and roots) of plants incubated in the dark compared to those in the light. The turnover of GS total activity was also evaluated overtime following glufosinate treatment at midday compared to dusk application. The results suggest that GS in A. palmeri is less expressed and less abundant in the dark compared to in the light. Midday application of glufosinate under intense light conditions in the hours following application provide full control of A. palmeri plants. Consequently, these plants are unable to recover GS activity by de novo protein synthesis. Full activity of GS is required for complete inhibition by the irreversible inhibitor glufosinate. Therefore, glufosinate applications should always be performed in the middle of the day when sunlight is intense, to prevent weed escapes from the herbicide treatment.
Development of Urban Eco-Sustainable Index for Upscaling Water Security at Catchment Level in Langat River, Malaysia
Authors: Elfithri Rahmah , Mokhtar Mazlin Bin , Toriman Mohd Ekhwan , Zainal Abidin Marina , Teo Fang Yenn
Published: July 2021

The Urban Eco-Sustainable Index for Upscaling Water Security at Catchment Level in Langat River, Malaysia has developed by using the Modified Watershed Sustainability Index or MicroWSI (MWSI), which was based on the Participation, Design and Management Components. The study has successfully applied spatial and social dimensions on ecohydrology of the selected Langat River reach for stormwater management, natural ecosystems health and quality of life. The planning and public participation aspects of the study have evaluated the surrounding neighborhood area of Langat. The conceptual design of rehabilitation works implementation related to Urban Stormwater Management Manual for Malaysia (MSMA) Stormwater Management Ecohydrology (SME) within the study area has been developed with four components of MSMA-SME to be implemented in the study area i.e Bioretention System, Porous Pavement System, Constructed Wetland and Slope Protection Works. These components were proposed to be applied in the development of Langat Riverfront Community Park (LRCP) which has taken into account the components of Design, Management and Participation of Community and Stakeholders in Langat River Basin, Malaysia. This study analyzed the MWSI for the Upscaling of MSMA Ecohydrology at Catchment Level of Langat River and has found the medium level of sustainability for the level of participation, proposed design, and management. Thus, there is a need to increase the level of readiness in the community and stakeholder participation in the Langat River towards sustainability of river conservation and rehabilitation programmes in this basin.
Adaptive Heritage: Is This Creative Thinking or Abandoning Our Values?
Authors: Perry Jim , Gordon Iain J.
Published: July 2021

Protected areas, such as natural World Heritage sites, RAMSAR wetlands, and Biosphere reserves are ecosystems within landscapes. Each site meets certain criteria that allow it to qualify as heritage or protected. Both climate change and human influence (e.g., incursion, increased tourist visitation) are altering biophysical conditions at many such sites. As a result, conditions at many sites are falling outside the criteria for their original designation. The alternatives are to change the criteria, remove protection from the site, change site boundaries such that the larger or smaller landscape meets the criteria, or manage the existing landscape in some way that reduces the threat. This paper argues for adaptive heritage, an approach that explicitly recognizes changing conditions. We discuss the need to view heritage areas as parts of a larger landscape, and to take an adaptive approach to management of that landscape. We offer five themes of adaptive heritage: 1) treat sites as living heritage, 2) employ innovative governance, 3) embrace transparency and accountability, 4) invest in monitoring and evaluation, and 5) manage adaptively. We offer the Australian Wet Tropics as an example where aspects of adaptive heritage currently are practiced, highlighting the tools being used. This paper offers guidance supporting decisions about natural heritage in the face of climate change and non-climatic pressures. Rather than delisting or lowering standards, we argue for adaptive approaches.
A Blockchain-Based Multi-Factor Authentication Model for Cloud-Enabled Internet of Vehicles
Authors: Kebande Victor R. , Awaysheh Feras , Ikuesan Richard , Alawadi Sadi , Alshehri Mohammad
Published: July 2021

Continuous and emerging advances in Information and Communication Technology (ICT) have enabled IoT-to-Cloud applications to be induced by data pipelines coupled with Edge Intelligence-based architectures. Advanced vehicular networks greatly benefit from these architectures due to the implicit functionalities that are focused on realizing the Internet-of-Vehicle (IoV) vision. However, IoV is susceptible to attacks, where adversaries can easily exploit existing vulnerabilities. Several attacks may succeed due to inadequate or weaker authentication techniques. Hence, there is a timely need for hardening the authentication process through cutting-edge access control mechanisms. This paper proposes a Blockchain-based Multi-Factor authentication model that uses an embedded Digital Signature (MFBC_eDS) for vehicular clouds and Cloud-enabled IoV. Our proposed MFBC_eDS model consists of a scheme that integrates the Security Assertion Mark-up Language (SAML) to the Single Sign-On (SSO) capabilities for a connected Edge-to Cloud ecosystem. MFBC_eDS draws an essential comparison with the baseline authentication scheme suggested by Karla and Sood. Based on the foundations of Karla and Sood’s scheme, an embedded Probabilistic Polynomial-Time Algorithm (ePPTA) and an additional Hash function for the Pi generated during Karla and Sood’s authentication are proposed and discussed. The preliminary analysis of the proposition shows that the approach is more suitable to counter major adversarial attacks in an IoV-centered environment based on Dolev-Yao adversarial model while satisfying aspects of the CIA triad.
Clinical and Laboratory Characteristics of Kikuchi-Fujimoto Disease According to Age
Authors: Kim Hye-Young , Jo Ha Young , Kim Seong Heon
Published: July 2021

Background: Little information exists regarding the differences in the clinical and laboratory characteristics of Kikuchi-Fujimoto disease (KFD) according to age. Objective: To evaluate the clinical and laboratory characteristics of KFD according to age. Methods: We retrospectively evaluated patients diagnosed with KFD at Pusan National University Hospital between 2010 and 2020. Results: Eighty patients (46 children and 34 adults) with a mean age of 21.5 ± 11.8 years (range, 3–49 years) were included in the study. Among children, the male sex ratio was higher, in adults, the female sex ratio was higher. Fever, tenderness in the lymph node, and skin rashes were more common in children, while myalgia and weight loss were more common in adults. In children, the recurrence rate was significantly higher among boys than among girls (15.8% vs 0.0%, P=0.001). EBV and ANA positivity rates were higher in boys than in girls. In adults, the recurrence rate was significantly higher in women than in men (18.2% vs 0.0%, P=0.005). ANA positivity rates were higher in women than in men. Conclusion: The clinical features, laboratory findings, and recurrence of KFD may differ depending on age and sex. Clinicians should be aware of this.
Modification of cast alloys nanostructured material
Authors: Vitiaz P. A. , Svidunovich N. A. , Kuis D. V. , Nikalaichyk Yu. A. , Rovin S. L.
Published: July 2021

The third article of the series devoted to the application of nanomaterials and nanotechnologies in industry in general and, first of all, in metallurgy, materials science and foundry is presented. This article deals with the use of nanomaterials for the improvement of ferrous and non-ferrous alloys by micro-alloying and modifying methods, as well as the synthesis of new composite materials. The results of research on C-B-Fe composites obtained at the Belarusian State Technological University, a method for modifying gray cast iron with micro-additives of abrasive slurries of high-speed steels, proposed by specialists of BNTU and OJSC «MTW», and aluminum alloys modified with nanostructured carbideand nitride-containing powders developed by Belarusian, Bulgarian and Russian scientists are presented.
Production of target cathodes from composite silicides for applying protective coatings using casting and deformation technologies
Authors: Ivanov I. A. , Slutsky A. G. , Scheinert V. A. , Ivanov A. I. , Bely A. N.
Published: July 2021

The article discusses the results of manufacturing multicomponent consumable cathodes of vacuum electric arc evaporation plants. To obtain ingots of complex silicide as a raw material for the manufacture of target cathodes, it is proposed to use induction melting of pure metal charge materials in an argon atmosphere.

The method made it possible to obtain ingots of complex silicide with a composition close to the calculated one and a density of at least 93 %. Further forming of the cathode takes place when controlling the powder fractions by their percentage ratio with a pressing force of at least 50 tons. The results obtained are compared with the SHS method of manufacturing cathodes of identical composition.
Electrolyte-Plasma Treatment in Controlled Pulse Modes
Authors: Korolyov A. Yu. , Aliakseyeu Yu. G. , Niss V. S. , Parshuto A. E.
Published: July 2021

Electrolyte-plasma treatment (EPT) has become widespread in industry as an alternative to traditional chemical, electrochemical and mechanical methods of improving the surface quality of products made of metallic materials. The advantages of EPT are a high intensity of smoothing of microroughnesses, the use of low-concentration salt solutions  as electrolytes, and the ability to process items of complex shape. The main disadvantage of the method is its high energy consumption; therefore, the method сan be classified as energy-intensive production. To reduce the energy intensity and  increase the efficiency of the EPT process of metallic materials while maintaining high intensity, processing quality and  environmental safety, we proposed a fundamentally new pulse method (pulsed EPT), which combines the advantages of both electrochemical processing and EPT. The method is realized by combining two alternating stages within one millisecond pulse: electrochemical and electrolyte-plasma. The high efficiency of the developed method is achieved due to the main intensive metal removal during the implementation of the electrochemical stage with a high current density and optimization of the duration of the electrolyte-plasma stage, which provides a high surface quality. A decrease in the repetition period of pulses with a decrease in their duration makes it possible to increase the electrochemical component of the process and to provide  a more intensive metal removal, to remove significant surface irregularities. An increase in the pulse repetition period with  a simultaneous increase in their duration permits to increase the electrolyte-plasma component of the process and achieve  a low roughness with a general decrease in the energy intensity of the process. As a result of the work, the influence of the pulse characteristics of the developed process, the concentration and temperature of the electrolyte on the current density and the duration of the electrochemical and electrolyte-plasma stages has been investigated, a comparative analysis of the efficiency of using the pulsed EPT process instead of the traditional process at constant voltage has been carried out. It has been found that the metal removal rate in the developed pulse process is more than five times higher than the removal rate in the process based on the use of constant voltage, and is 40 μm/min, while the energy costs for the implementation of the pulse process is 19 % less.
Power Mode of High-Speed Combined Extrusion of Flat Bimetallic Road Milling Picks
Authors: Bykov K. Y. , Kachanov I. V. , Shatalov I. M.
Published: July 2021

The paper presents a mathematical model developed for calculating the force effect on the punch in the process of high-speed combined hot extrusion of bimetallic road milling picks under plane deformation conditions. To solve the problem, the process is divided into two phases: acceleration phase and braking phase, which consists of two stages. A distinctive feature of the acceleration phase is that it allows the analysis of reverse extrusion, in the process of which the metal flows in the opposite direction to the punch stroke. A method for calculating the force acting on the punch at each phase of the process  of plastic flow of a bimetallic workpiece into a matrix cavity with three deformation zones is presented in the paper.  While solving the problem in a quasi-static formulation and proceeding from the conditions of the minimum power of internal forces, equations have been obtained for calculating the optimal field parameters aopt, bopt, gopt, depending on the elongation coefficients l and the friction coefficient m. The equations obtained within the framework of the developed model are quite correct, since they allow determining the minimum force acting on the punch. The considered calculation model and equations can be used in the development of industrial technology for high-speed combined hot extrusion of flat-step bimetallic road milling picks.
Basics of Calculating Anti-Theft Crane Device from Eccentric and Tick-Borne Mechanisms
Authors: Selivonchik N. M. , Nesterenko N. L.
Published: July 2021

According to the requirements of the “Rules for industrial safety of cranes”, anti-theft devices must ensure that cranes under the influence of wind force stop at any point on the track, including at the junction of rails connected by side strips. Various types of anti-theft crane devices recommended for use have a number of disadvantages. Thus, the supply  of anti-theft crane devices made in the form of lever grips interacting with the rail head with mechanisms for disengaging  and converging grippers with electromechanical, electromagnetic, hydraulic or pneumatic drives complicates their design. There are also known anti-theft crane devices, in which the stopping of cranes on a rail track is carried out by a locking eccentric interacting with the surface of the rail head. The reliability of such devices is insufficient, since, due to the constant force of the spring, the adhesion force of the eccentric to the rail does not depend on the changing wind force. The paper proposes the basics of calculating the anti-theft crane device, representing the kinematic connection of two mechanisms – eccentric and thick-borne, which allows to solve a number of the above problems.
Algorithm for Solving Problem of Designing Regional Logistics Infrastructure
Authors: Ivut R. B. , Popov P. V. , Lapkovskaya P. I. , Sheveleva N. E.
Published: July 2021

The paper considers an algorithm for solving the problem of finding the optimal location of key objects of transport and warehouse infrastructures within the framework of a methodological approach to designing logistics infrastructure in the territory of the region of the countries. The methodological approach includes three stages. At the first stage, areas  are determined where it is advisable to locate key objects of the regional logistics infrastructure. Further, using the models developed by the authors, the linking of warehouse infrastructure objects on the ground has been carried out and, taking into account the designed warehouse network, the optimal dislocation of transport infrastructure objects has been determined.  To find the optimal locations for the objects for regional logistics infrastructure facilities, the authors propose an algorithm that is applicable both for building warehouse and transport infrastructures due to the similarity of the models. The algorithm is based on the method of constructing a sequence of plans. At the initial stage, the final expansion is constructed for the set of plans under consideration. For a given set, a minorant has been determined for the cost function associated with the placement and maintenance of infrastructure facilities, the movement of goods, and the haul of an empty vehicle. After that, an iterative algorithm has been formed that determines the sequence of optima of the minorant on a sequence of nested sets. At the first step, an element of the set of plans has been found that minimizes the minorant, at the next step, the found element is excluded from the set under consideration, and a new optimum is sought on the remaining set for which the minorant takes the minimum value. To eliminate multiple plans, it is advisable to use dynamic programming procedures. The limits of applicability  of the method for constructing a sequence of plans are determined by the ability to construct an extension of the set of plans for placing objects, select a minorant on it, and build an algorithm for ordering optima.
DEVELOPMENT OF TRANSBOUNDARY COOPERATION BETWEEN ORGANIZATIONS OF THE REPUBLIC OF BELARUS AND THE REPUBLIC OF POLAND
Authors: GOLUBOVA O.
Published: July 2021

The search for ways to develop the transboundary cooperation between the organizations of Belarus and Poland is the great importance for both countries. The study the interest in cooperation, resolution and development barriers of cross-border cooperation was based on questioning of business entities. Analysis of the data from the National Statistical Committee of the Republic of Belarus makes it possible to assess the current state of bilateral cooperation between the organizations of the Republic of Belarus and the Republic of Poland. The information obtained by processing the questionnaires of the respondents of the Republic of Belarus reveals the degree of development of cooperation, trust issues between partner organizations and competitors, scientific research organizations, authorities and Polish organizations.
Pilot Test of Surfactant/Polymer Flood with Mixtures of Anionic/Cationic Surfactants for High-Temperature Low-Permeability Sandstone Reservoir
Authors: Li Y. , Zhang W. , Shen Z. , Jin J. , Su Z. , Yao F. , Wang B. , Yu X. , Bao X. , He X. , Wu X. , Zhang H. , Cui L. , Sha O.
Published: July 2021

The first pilot test of a surfactant/polymer (SP) flood in the world with mixtures of anionic/cationic surfactants (Sa/c) was performed in a high-temperature and low-permeability sandstone reservoir with a high content of clay to demonstrate the potential of this novel technique to improve oil recovery. Low critical micelle concentration of 2.78×10−6 mol/L, ultralow interfacial tension (IFT) of 10−3 to 10−4 mN/m when surfactant concentrations were greater than 0.025 wt%, and lower phase microemulsion with solubilization ratio of 22, as well as oil-washing rate of 61%, were obtained by using Sa/c. Carboxymethylcellulose sodium was adopted as an adsorption inhibitor (AI) to reduce the adsorption because of the high clay contained in the natural core. With the addition of AI, dynamic adsorption of Sa/c was approximately 0.30 mg/g sand, and the IFT remained nearly unchanged before and after adsorption. The viscosities of polyacrylamide with molecular weight (MW) of 6.16×106 daltons and SP were 3.0 and 4.1 mPa·s, respectively. Coreflooding results showed that more than 16% of original-oil-in-place (OOIP) crude oil was recovered by SP over waterflood. The pilot test of SP containing Sa/c was performed in a Sinopec reservoir with temperature of 83°C, salinity of 1.69%, permeability of 41.5 md, and clay content of 10 to 16%. A total of 0.40-pore volume (PV) chemicals, including 0.1-PV polymer preslug, 0.25-PV SP main slug, and 0.05-PV post-polymer drive, were injected from August 2012 to December 2017 with an injection rate of 0.08 PV/yr. Then, waterdrive was conducted. Maximal water cut decreased from 82.2 to 62.1%, and the peak daily oil production increased from 12.2 to 32.3 t. The oil recovery was increased by 8.0% of OOIP within 4 years.
Identification of Nucleus Sterility Candidate Genes using a Resequencing Technique in Sweet Pepper Sterile Line AB91
Authors: Fan Yanqin , Meng Yaning , Yan Libin , Zhang Hongxiao
Published: July 2021

Breeding hybrids with nuclear male sterile lines is an important method for the cross breeding of sweet peppers. To date, few reports have been published on the nuclear male sterility gene of sweet pepper. Yet, there are approximately 20 pepper nuclear male sterility lines in the world. Using the self-developed testing material, sweet pepper nuclear male sterile dual-purpose line AB91, the genome-wide resequencing technique was applied to firstly find that the mutation site causing the abortion of sweet pepper nuclear male sterility AB91 is on chromosome #5. The mutation gene Capana05g000747 was filtered out and validated by the flight mass spectrometry genotyping method and determined to be the gene causing the abortion of sweet pepper nuclear male sterility AB91. The gene Capana05g000747 contains eight exons and seven introns, and its mutation site is a non-synonymous mutation site located at the 6th exon; the base C mutated into A, and the amino acid changed from alanine to serine. Sequence alignment analysis showed that the gene Capana05g000747 has a similar function to gene At2g02148. The gene At2g02148 contains a pentatricopeptide repeat protein which has important physiological functions in the gene expression process of organelles and is closely related to the performance of male sterility genes. Therefore, Capana05g000747 was selected as an important candidate gene for sweet pepper nuclear male sterile testing material AB91.
Parameter estimation of different solar cells using a swarm intelligence technique
Authors: Gupta Jyoti , Nijhawan Parag , Ganguli Souvik
Published: July 2021

Since the demand for a clean source of energy has increased, it led to the consequent rise in the importance of solar energy. Thus, the concept of solar cell modelling has drawn the attention of various researchers across the world. A useful and accurate mathematical model for such cells is therefore necessary. In the literature, the three-diode model (TDM) is suggested as a more reliable approach to satisfy the behaviour of photovoltaic (PV) cells. This paper proposes a new swarm intelligent technique namely, the Chaotic Chicken Swarm Optimization (CCSO), which is originated from the parent chicken swarm algorithm, for parameter assessment of the three-diode PV model, as the three-diode PV model incorporate the grain boundaries and leakage current. Ten different popular chaotic maps have been considered for the study to identify the parameters from the manufacturer datasheet. The chicken swarm technique yields great optimization results both in terms of accuracy and robustness. Further, the use of chaotic maps improves the diversification feature of this metaheuristic technique for which it is preferred. The performance of the proposed approach proved better when compared with some of the popular techniques available in the literature in terms of convergence accuracy and speed. The accuracy of the proposed technique is also verified by extracting I-V and P-V curves. Moreover, several non-parametric statistical tests are also performed to validate the significance of the outcomes obtained by the proposed method.
Xylogenesis, photosynthesis and respiration of Scots pine trees growing in Eastern Siberia (Russia)
Authors: Feodosievna Antonova Galina , Victorovna Stasova Victoria , Georgievna Suvorova Galina , Alekcandrovich Oskolkov Vladimir
Published: July 2021

Key message The relationships between cambium activity, cell wall biomass accumulation and photosynthesis/ respiration in Scots pine trees, growing in Eastern Siberia (Russia), change during the season in dependence on combination of summer-weather conditions. The wood formation in tree trunks depends on photosynthesis and respiration and the each of the processes are under the effect of external factors. Each factor effects the growth in combination with other factors and the change in any of these factors leads to strengthen or to weaken of the growth processes in tree. We investigated the formation of xylem and phloem cells by cambium, cell wall biomass accumulation in Scots pine trees, growing in Eastern Siberia (Russia), in dependence on the productivity of photosynthesis and energy cost in separate seasonal periods in the years with opposite summer-weather conditions. The cores extracted throughout 10-day from the stems of 10 trees during the seasons were used to determine the number of cells with different development degree and their morphological parameters. Cambium activity and cell wall biomass accumulated on the separate stages of annual ring wood formation and their connections with the photosynthetic productivity of crown and the level of stem respiration photosynthesis were assessed. The activity of cambial cell division into xylem or phloem sides in separate periods depended on the combination of temperature/precipitation and on the connection with photosynthesis and respiration. The dynamics of biomass accumulation was bimodal with the maximums in June (earlywood development) and mainly in August (development of thick-wall late tracheids), what was due to the combination of optimal temperature and the moisture in the stem tissues. The variation in the external factors changed the balance between the incoming of photoassimilates and the energy cost causing a competition for photosynthesis products and, as a consequence, photoassimilates were used not only for cell-wall biomass synthesis and but also for their reservation of spare substances in the form of starch. The data is useful to understanding of internal processes of wood annual ring formation in pine trees.
The Impact of COVID-19 Pandemic on Gynecological and Breast Cancer Detection Rate: A Tertiary Center Perspective.
Authors: Knoll Katharina , Reiser Elisabeth , Leitner Katharina , Kögl Johanna , Ebner Christoph , Marth Christian , Tsibulak Irina
Published: July 2021

Purpose: The aim of the present study was to assess the impact of postponed screening examinations and lockdown measures on gynecological and breast cancer detection rate throughout the year 2020 in a gynecological oncological center in Austria.Methods: Data of 889 patients with either newly diagnosed gynecological or breast cancer between January 2019 and December 2020 were collected. Clinical parameters including symptoms, performance status, comorbidities and referral status were compared in patients, who were newly diagnosed with cancer in the period of the first lockdown from March 2020 – April 2020 and the second lockdown from November 2020 – December 2020 and compared to the same period in 2019.Results: Our results showed a strong decline in newly diagnosed cancers during the lockdown periods: -45% in gynecological cancer and -52% in breast cancer compared to the same period in 2019. Compared to the analogue period of 2019, breast cancer patients reported significantly more tumor-associated symptoms (55% versus 31%, p=0.013) during and in between (48% versus 32%, p=0.022) the lockdowns. During the lockdown periods breast cancer patients were diagnosed with a significantly higher tumor-stage (T2-T4; p=0.047).Conclusion: Both lockdowns led to a strong decrease in newly diagnosed gynecological and breast cancers. Treatment delays in potentially curable disease could lead to inferior clinical outcomes, with the risk of missing the optimal treatment window. As the COVID-19 pandemic will be a challenge for some time to come, new strategies in patient care are needed to optimize cancer screening and management during the pandemic.
An Improved Banking Application Model Using Blockchain
Authors: Khan Muhammad Khalid , Nisar Kashif , Farooq Yumna , Habib Shamsheela , Danish Muhammad , Hyder Iram
Published: July 2021

Every field is improving day by day as technologies become advance. The banking industry needs to improve as well, due to face lots of pressure for their backward system and having a lot of issues, such as data storage, privacy, scalability, and transparency. These issues, forced to drive the banking system towards advancements. We know that the banking system is the core of finance. So, banking should adopt blockchain technologies due to their characteristics, such as decentralization, data privacy, immutability, transparency, etc. which could help the banking industry to cope with the issues of the traditional centralized banking system. There are many systems already proposed to the banking industry, that are based on blockchain techniques like transaction, auditing, trading, data sharing, off-chain, and on-chain systems. But there is no proper solution base system for banking that carries out the banking process flow using consortium and ensures to solve all issues discussed above. Keeping these problems, we proposed a theoretical model for the banking sector. This model uses the techniques of on-chain and off-chain transactions based on a consortium blockchain. In which, a user ID, with the public key, and a private key are provided to each banking user. In this model, data stored in a third-party database as an off-chain mechanism, and mapped using (public\private) Keys and user ID as an on-chain mechanism, which will be updated and validate periodically using Smart Contract. So, if data will tamper between two periodic checks, then this tempering gets caught. This technique ensures security. In this model consortium, P2P (Peer-to-peer) protocol is also applied to ensure data privacy and partial transparency. Also, three more services provide by this model are, registration, transaction to contractual party, and transaction to the customer from the bank. The first two services are handled off-chain and the third service is handled on-chain, which ensures authentication of registered clients. In this regard, as we mentioned above, that still no banking system proposed an idea to use the consortium technique yet. So, we compare our model with the previously proposed transaction models. Our proposed model covered almost all aspects required for a banking system. This model will help to implement a blockchain-based banking system, which is more robust, secure, transparent, and scalable.
An Enhanced Exploration of Sentimental Analysis in Health Care
Authors: Chakrapani Kannan , Kempanna Muniyegowda , Iqubal Safa Mohamad , Thyagarajan Kavitha , Ramachandran Manikandan , Bhaskar Vidhyacharan , Kumar Ambeshwar
Published: July 2021

The medical dataset replicates the patient's crucial information, such as important details regarding the patient's health. It includes disease diagnoses, interventions, and descriptions of the examined results. Also, detecting the mindset of an acute disease-affected patient is a primary challenging task. Though sentiment analysis plays a role in seeing their perspective, the significant broad medical application does not yet meet the analysis of patient mindset. So here we identified major shortcoming exists while studies the diversified disease-affected people mindset. Hence, we introduce a practical framework to analyse patients' perspectives using a socio-medical dataset that contains various reviews and feedback of critical diseases-affected people—initially, we applied a pre-processing technique, including Lowercase Conversion, removing special characters, removing stop words, Number to word conversion, Stemming, and lemmatization over dataset. Next, N-gram tokenization methodology is used to extract the valuable features followed by assigning polarity score to each sentiment we extract and calculate the overall polarity of the context. Finally, a probabilistic LDA model was employed to combine the review. Furthermore, various machine learning classifiers are explored to evaluate the performance of the proposed framework.