bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development and research of the tower for hanging supports on hop-gardens
Authors: Smirnov P A , Makushev A E , Vasiliev A O , Andreev R V , Lozhkin A G , Medvedev V I 
Published: March 2020

Abstract
In recent years, in the conditions of economic sanctions and food embargo in Russia, the issue of import substitution has become acute. These phenomena are directly related to agricultural products and, in particular, to the production of hops. Currently, about 90% of commercial hops are imported to the Russian market from abroad. Current trends in the improvement of modern hop-growing technology require the introduction of high-tech innovations into the cultivation process. Its productivity and product quality depend on timely and proper technological operations in the production of hops. Given the increasing prices of energy, it is necessary to introduce improved low-cost technologies in the production of hops. The most important aspect at the present stage is the mechanization of such a process as hanging supports using mobile towers. The use of these towers can increase productivity in this operation in 5-6 times compared to manual labor. The tower must contain a horizontal frame with a trailed device, a working platform, hydraulic cylinders for its lifting, a system of guide rings for support beams. A small ladder should be provided for lifting workers to the site. As a result of the design, the optimal parameters of the scissor-type perspective tower were determined, providing the required stability, both static and dynamic.
Vibroprotective mechanism with the quasizero stiffness for seats of operators of construction and road machines
Authors: Tomleeva S V , Saveliev A G , Moiseev G D , Kolesnikov P G 
Published: March 2020

Abstract
The paper considers vibration isolation device with a quasi-zero stiffness, which nonlinear element is made in the form of a closed elastic rod, an elastic line described by the circle. The authors list the features of stiffness and strength characteristics of the device, and select the parameters that ensure the full protection on a portion of the suspension.
Study of the influence of the driver’s reaction time on the road traffic situation at a controlled intersection using simulation modeling
Authors: Zagidullin R R 
Published: March 2020

Abstract
The role of the human factor in ensuring safe intensification of road traffic is great. This can be achieved with good traffic management and a sharp reduction in motor vehicles collisions (MVC). Nowadays, in countries with a high level of motorization, MVCs lead to great amount of deaths and material losses. This happens because, no matter how reliable the vehicles, roads, and traffic rules, the outcome of the MVC in the vast majority of cases depends on the actions of the driver. The continuing rapid growth of the fleet leads to an increase in the intensity of traffic flows, which imposes ever-increasing demands on drivers. Therefore, improving the reliability of drivers becomes an urgent task, without the resolution of which it is impossible to achieve a significant reduction in MVC and improve traffic safety. The information obtained in the process of studying the patterns of perception by a driver of a road stop will help to solve this problem; therefore, this work is devoted to the urgent topic of the analysis of the influence of the driver’s reaction time on traffic safety and traffic capacity of the road network and is performed using the simulation method.
Intersections at different levels - an alternative solution to the development of the road network
Authors: Loginova O A , Nikolaeva R V 
Published: March 2020

Abstract
Modern road network should provide conditions for safe and comfortable movement, both for drivers and for pedestrians. Transport industry development specialists face such transport problem as the low capacity of the road network. Low capacity causes congestion in the road network, disruptions in the organization of normal traffic flow, traffic jams, an increase in the number of traffic accidents. One way to solve this transportation problem is to use alternative solutions when designing. These solutions include constructing the intersections at different levels. The aim of the study is to compile data on alternative diamond-shaped intersections at different levels with a change in the side of movement. The main results of the study are that at the moment there are three schemes of a diamond-shaped intersection with a change in the side of the movement. These types of intersections have a smaller number of conflict points, compared with the intersection of the diamond type. The experience in the operation of road sections with diamond intersections showed a decrease in accident rates. Cyclists and pedestrians can use the junctions as well. The results of the study give an idea of the level of design of alternative types of intersections abroad. Considered interchanges can be used not only when at crossings of high-category roads, but also in cities, in the conditions of the existing development.
The role of the transport infrastructure of the Republic of Tatarstan in the development of regional entrepreneurship
Authors: Absalyamova S , Absalyamov T , Mukhametgalieva C 
Published: March 2020

Abstract
The article considers the impact of transport infrastructure on the development of regional entrepreneurship. On the example of hosting sport mega-events and the increased interest in the cultural heritage, the article shows mutual influence of tourism in the region and the development of the transport infrastructure of the republic. The authors study the main components of the transport and communication framework, which allow to increase the tourist flow, passenger traffic and cargo flow.
Road safety as a factor in the socio-economic development of the country
Authors: Nikolaeva R V 
Published: March 2020

Abstract
In the conditions of modern society, the prospective development of the country’s economy cannot be considered without a well-established transport system. The discrepancy between the level of development of the transport network and the level of demand for road transport leads to inefficient and huge costs. The main costs are associated with the elimination of the consequences of road accidents. The article considers road safety as a particularly significant socio-economic problem of the country. The relationship between economic development and the level of road safety was studied using the example of the Republic of Tatarstan (a subject of the Russian Federation). As main indicators we selected population, level of motorization, length of transport networks, gross regional product, accident rates and damage as a result of deadly accidents. Studies have shown that there is an interdependence of road safety and the economy of the republic. Moreover, it is important to assess the direct and indirect socio-economic costs of the consequences of road accidents. This allows us to measure the burden that a traffic accident causes to society, and emphasizes the return on investment in road safety.
Development of transport infrastructure in smart cities
Authors: Makarova I , Boyko A , Giniyatullin I , Ahmadeeva A 
Published: March 2020

Abstract
Smart Mobility is one of the main directions of development of the transport system in intelligent cities. In this case, along with management intellectualization, the issue of transition to “green”, safe and sustainable modes of transport, such as bicycles, should be resolved. Democracy and availability, cheapness and environmental friendliness, promotion of a healthy lifestyle are the reason for the growing popularity of this type of transport throughout the world. This document proposes one of the possible ways to develop bicycle transport in a smart city, which allows you to expand the number of users by reducing the physical requirements for cyclists. The proposed development is the concept of Smart Bike, which controls the condition of the cyclist and the environment and turns on the electric motor in critical situations. This reduces the cyclist’s physical activity, as well as the consumption of the battery, which has a positive effect on the ecology of Smart Cities.
Organizational capacity of cdio syllabus in actualization of the objectives of engineering education from regional perspective
Authors: Bukalova G V , Dorofeev A N , Novikov A N 
Published: March 2020

Abstract
Engineering and technical progress is transforming the automotive industry rapidly. Conformance of professional competencies of college graduates to the requirements of the regional industry is seen as the main competitive advantage at the regional labor market. Both the business and engineering academic communities recognize the importance and stand ready for continual actualization of educational objectives. An important (from both theoretical and practical standpoints) question is the form of presentation of training results declared by a higher education institution for the purpose of assessing its relevance by the business community. Using the CDIO Syllabus architecture as the basis of a structured system for polling representatives of the industry and the academic community of the region, i.e. the two main stakeholders, certain information was obtained for updating educational objectives of automotive engineering undergraduate programs. The study conducted made it possible to distinguish and detail value and target-based opinions of respondents, as well as to evaluate, in absolute and relative terms, the level of relevancy of a graduate’s competencies declared by a college.
New Way To Determine The Technical Condition Of Ball Joints
Authors: Novikov A N , Eremin S V , Shevtsova A G 
Published: March 2020

Abstract
Among the multitude of vehicle suspension assemblies, the ball joint is one of the most important bearing assemblies, the operability of which directly depends on the operating conditions. Ball joints are used to connect the suspension and steering components and are kinematic interfaces that have three angular degrees of freedom when moving the working elements (levers). The reliability of the hinges has a significant impact on the safety of the car. In most cases, the ball joint is an indiscriminate node, which makes it difficult to determine the technical condition in a car service center. One of the methods of diagnosing are laboratory bench examinations of ball joints. To obtain reliable information about the wear of ball joints and the development of a technique for determining their technical condition in the conditions of an auto service company, a laboratory bench research area is needed. The completed research aimed at developing methods, tools and algorithms for determining the technical state of ball joints in the conditions of an auto service company. As a result of the research, the author’s team developed a vibration method for determining the technical state of ball joints and a mathematical model for changing the technical condition of the ball joint of the front suspension of the MacPherson type of a car, in bench tests.
Using experience of the dynamic models of piston internal combustion engines
Authors: Agureev I E , Elagin M Y , Khmelev R N , Platonov K Y , Pyshnyi V A 
Published: March 2020

Abstract
This article describes using experience of the hierarchical system of dynamic models for researching the operation and calculation of piston engines. The results of practical using and the possibilities of dynamic models developed by the authors are shown.
Assessment of sustainability of improving road safety process in the volga federal district
Authors: Petrov A I , Petrova D A 
Published: March 2020

Abstract
The article examines the issues of assessing the sustainability of traffic safety improvement process in the cities of the Volga Federal District of the Russian Federation. In 2015…2018 a sharp decrease in the overall level of road traffic accidents in the Russian Federation was recorded. However, in different regions and cities of the country this positive process runs extremely heterogeneously, with various speeds and different levels of qualitative changes in the field of road safety. The T-Wilcoxon criterion is an instrument, used in analyzing accident rate statistics, which can help in the argumentation of the opinion on the stability of this process or, vice versa, on the chaotic state and weak expression. On the example of accident rate statistics in subjects of the Volga Federal District of Russia, the article proves that improvement of road safety can be characterized as sustainable.
Imitation and analytical approaches to assessment of condition and modeling of city transport system nodes
Authors: Mamaev E A , Kovaleva N A , Khashev A I , Mulenko O V 
Published: March 2020

Abstract
The issues of the city transport system and transport nodes assessment concerning the possibilities of express assessment by analytic methods and accurate forecast of its development by transport (imitation) models are discussed. Localization of the assessments for the transport services consumers and transport companies enables to implement the functions of the city transport regulation by the municipality. The social and economic factors of the city transport development for increasing the transport quality and public access are considered.
Enhancing cell packing in buckyballs by acoustofluidic activation
Authors: Ren Tanchen , Steiger Wolfgang , Chen Pu , Ovsianikov Aleksandr , Demirci Utkan 
Published: March 2020

Abstract
How to pack materials into well-defined volumes efficiently has been a longstanding question of interest to physicists, material scientists, and mathematicians as these materials have broad applications ranging from shipping goods in commerce to seeds in agriculture and to spheroids in tissue engineering. How many marbles or gumball candies can you pack into a jar? Although these seem to be idle questions they have been studied for centuries and have recently become of greater interest with their broadening applications in science and medicine. Here, we study a similar problem where we try to pack cells into a spherical porous buckyball structure. The experimental limitations are short of the theoretical maximum packing density due to the microscale of the structures that the cells are being packed into. We show that we can pack more cells into a confined micro-structure (buckyball cage) by employing acoustofluidic activation and their hydrodynamic effect at the bottom of a liquid‐carrier chamber compared to randomly dropping cells onto these buckyballs by gravity. Although, in essence, cells would be expected to achieve a higher maximum volume fraction than marbles in a jar, given that they can squeeze and reshape and reorient their structure, the packing density of cells into the spherical buckyball cages are far from this theoretical limit. This is mainly dictated by the experimental limitations of cells washing away as well as being loaded into the chamber.
The Mnemiopsis Genome Project Portal: integrating new gene expression resources and improving data visualization
Authors: Moreland R Travis , Nguyen Anh-Dao , Ryan Joseph F , Baxevanis Andreas D 
Published: March 2020

Abstract
Following the completion of the genome sequencing and gene prediction of Mnemiopsis leidyi, a lobate ctenophore that is native to the coastal waters of the western Atlantic Ocean, we developed and implemented the Mnemiopsis Genome Project Portal (MGP Portal), a comprehensive Web-based data portal for navigating the genome sequence and gene annotations. In the years following the first release of the MGP Portal, it has become evident that the inclusion of data from significant published studies on Mnemiopsis has been critical to its adoption as the centralized resource for this emerging model organism. With this most recent update, the Portal has significantly expanded to include in situ images, temporal developmental expression profiles and single-cell expression data. Recent enhancements also include implementations of an updated BLAST interface, new graphical visualization tools and updates to gene pages that integrate all new data types.
Database URL: https://research.nhgri.nih.gov/mnemiopsis/
Five-year outcomes following complex reconstructive surgery for infective endocarditis involving the intervalvular fibrous body
Authors: Davierwala Piroze M , Marin-Cuartas Mateo , Misfeld Martin , Deo Salil V , Lehmann Sven , Garbade Jens , Holzhey David M , Borger Michael A , Bakhtiary Farhad 
Published: March 2020

Abstract

OBJECTIVES
Destruction of the intervalvular fibrous body (IFB) due to infective endocarditis (IE) warrants a complex operation involving radical debridement of all infected tissue, followed by double valve replacement (aortic and mitral valve replacement) with patch reconstruction of the IFB. This study assesses the 5-year outcomes in patients undergoing this complex procedure for treatment of double valve IE with IFB involvement.

METHODS
A total of 127 consecutive patients underwent double valve replacement with reconstruction of the IFB for active complex IE between January 1999 and December 2018. Primary outcomes were 3-year and 5-year survival, as well as 5-year freedom from reoperation.

RESULTS
Patients’ mean age was 65.3 ± 12.9 years. Preoperative cardiogenic shock and sepsis were present in 17.3% and 18.9%, respectively. The majority of patients (81.3%) had undergone previous cardiac surgery. Overall, 30-day and 90-day mortality rates were 28.3% and 37.0%, respectively. The 3- and 5-year survival rates for all patients were 45.3 ± 5.1% and 41.8 ± 5.8%, and for those who survived the first 90 postoperative days 75.8 ± 6.1% and 70.0 ± 8.0%, respectively. The overall 5-year freedom from reoperation was 85.1 ± 5.7%. Preoperative predictors for 30-day mortality were Staphylococcus aureus [odds ratio (OR) 1.65; P = 0.04] and left ventricular ejection fraction (LVEF) &lt;35% (OR 12.06; P = 0.03), for 90-day mortality acute kidney injury requiring dialysis (OR 6.2; P = 0.02) and LVEF &lt;35% (OR 9.66; P = 0.03) and for long-term mortality cardiogenic shock (hazard ratio 2.46; P = 0.01).

CONCLUSIONS
Double valve replacement with reconstruction of the IFB in patients with complex IE is a challenging operation associated with high morbidity and mortality, particularly in the first 90 days after surgery. Survival and freedom from reoperation rates are acceptable thereafter, particularly considering the severity of disease and complex surgery.
European survey and evaluation of sampling methods recommended by the standard EN ISO 18593 for the detection of Listeria monocytogenes and Pseudomonas fluorescens on industrial surfaces
Authors: Brauge Thomas , Barre Lena , Leleu Guylaine , André Stéphane , Denis Catherine , Hanin Aurélie , Frémaux Bastien , Guilbaud Morgan , Herry Jean-Marie , Oulahal Nadia , Anger Béatrice , Soumet Christophe , Midelet Graziella 
Published: March 2020

ABSTRACT
The ready-to-eat products can be contaminated during processing by pathogen or spoilage bacteria, which persist in the industrial environment. Some bacterial species are able to form biofilms which protect them from environmental conditions. To check the bacterial contamination of the surfaces in the food industries, the professionals must regularly use surface sampling methods to detect the pathogen such as Listeria monocytogenes or the spoilage such as Pseudomonas fluorescens. In 2010, we designed and carried out a European survey to collect surface sampling information to detect or enumerate L. monocytogenes in food processing plants. A total of 137 questionnaires from 14 European Union Member States were returned. The outcome of this survey showed that the professionals preferred friction sampling methods with gauze pad, swab and sponges versus contact sampling methods. After this survey, we compared the effectiveness of these three friction sampling methods and the contact plates, as recommended in the standard EN ISO 18593 that was revised in 2018, on the recovery of L. monocytogenes and of P. fluorescens in mono-specie biofilms. This study showed no significant difference between the effectiveness of the four sampling methods to detach the viable and culturable bacterial population of theses mono-specie biofilms.
Physical Activity Trajectories and Associated Changes in Physical Performance in Older Men: The MrOS Study
Authors: Laddu Deepika R , Parimi Neeta , Stone Katie L , Lapidus Jodi , Hoffman Andrew R , Stefanick Marcia L , Langsetmo Lisa 
Published: March 2020

Abstract

Background
Physical activity (PA) is important to maintaining functional independence. It is not clear how patterns of change in late-life PA are associated with contemporaneous changes in physical performance measures.

Methods
Self-reported PA, gait speed, grip strength, timed chair stand, and leg power were assessed in 3,865 men aged ≥ 65 years at baseline (2000–2002) and Year 7 (2007–2009). Group-based trajectory modeling, using up to four PA measures over this period, identified PA trajectories. Multivariate linear regression models (adjusted least square mean [95% confidence interval {CI}]) described associations between-PA trajectories and concurrent changes in performance.

Results
Three discrete PA patterns were identified, all with declining PA. Linear declines in each performance measure (baseline to Year 7) were observed across all three PA groups, but there was some variability in the rate of decline. Multivariate models assessing the graded response by PA trajectory showed a trend where the high-activity group had the smallest declines in performance while the low-activity group had the largest (p-for trend &lt; .03). Changes in the high-activity group were the following: gait speed (−0.10 m/s [−0.12, −0.08]), grip strength (−3.79 kg [−4.35, −3.23]), and chair stands (−0.38 [−0.50, −0.25]), whereas changes in the low-activity group were the following: gait speed (−0.16 [−0.17, −0.14]), grip strength (−4.83 kg [−5.10, −4.55]), and chair stands (−0.53 [−0.59, −0.46]). Between-group differences in leg power trajectories across PA patterns were not significant.

Conclusions
Declines in functional performance were higher among those with lower PA trajectories, providing further evidence for the interrelationship between changes in PA and performance during old age.
eIF-Three to Tango: emerging functions of translation initiation factor eIF3 in protein synthesis and disease
Authors: Wolf Dieter A , Lin Yingying , Duan Haoran , Cheng Yabin 
Published: March 2020

AbstractStudies over the past three years have substantially expanded the involvements of eukaryotic initiation factor 3 (eIF3) in messenger RNA (mRNA) translation. It now appears that this multi-subunit complex is involved in every possible form of mRNA translation, controlling every step of protein synthesis from initiation to elongation, termination, and quality control in positive as well as negative fashion. Through the study of eIF3, we are beginning to appreciate protein synthesis as a highly integrated process coordinating protein production with protein folding, subcellular targeting, and degradation. At the same time, eIF3 subunits appear to have specific functions that probably vary between different tissues and individual cells. Considering the broad functions of eIF3 in protein homeostasis, it comes as little surprise that eIF3 is increasingly implicated in major human diseases and first attempts at therapeutically targeting eIF3 have been undertaken. Much remains to be learned, however, about subunit- and tissue-specific functions of eIF3 in protein synthesis and disease and their regulation by environmental conditions and post-translational modifications.