bluuebunny/crossref_metadata_2025 huggingface dataset:
Strategic review of gas sensing enhancement ways of 2D tungsten disulfide/selenide-based chemiresistive sensors: decoration and composite
Authors: Kumar Ashok , Mirzaei Ali , Lee Myoung Hoon , Ghahremani Zahra , Kim Tae-Un , Kim Jin-Young , Kwoka Monika , Kumar Mahesh , Kim Sang Sub , Kim Hyoun Woo
Published: January 2024

Gas sensors that exhibit high sensitivity and possess astonishingly low detection limits are appealing for a wide range of practical applications, such as real-time environmental monitoring, exhaled breath diagnostics, security, medical diagnosis and the quality of food analysis.
Electrochemical surface reconstruction of nickel cobalt pyrophosphate to Ni/Co-hydroxide-(oxy)hydroxide: an efficient and highly durable battery-type supercapacitor electrode material
Authors: Roy Avishek , Inta Harish Reddy , Ghosh Sourav , Koppisetti Heramba V. S. R. M. , Mondal Ayan , Verma Bhagwat Ram , Bag Saikat , Mahalingam Venkataramanan
Published: January 2024

Highly durable porous battery-type supercapacitor charge storage material derived through electrochemical surface reconstruction of nickel cobalt pyrophosphate.
A flexible piezoresistive strain sensor based on MXene/bacterial cellulose hydrogel with high mechanical strength for real-time monitoring of human motions
Authors: Gai Yuwen , Yang Luyu , Shen Wei , Tan Fengyan , Yu Qingqing , Zhang Lei , Sun Dongping
Published: January 2024

A piezoresistive hydrogel sensor composed of bacterial cellulose and MXene nanosheets shows real-time stress sensing abilities at different amplitudes of human motions and maintains its sensing ability underwater.
Symphony of light: AIE and MFC in carbazole-based cyanostilbenes
Authors: Afrin A. , Chinna Ayya Swamy P.
Published: January 2024

Carbazole–cyanostilbene conjugates exhibit promising optical properties, including AIE and MFC. This review explores their diverse applications across various fields, highlighting their unique characteristics and potential impact.
Deubiquitylating enzymes in Arabidopsis thaliana endocytic protein degradation
Authors: Vogel Karin , Isono Erika
Published: January 2024

The regulation of ubiquitylation is key for plant growth and development, in which the activities of ubiquitylating enzymes as well as deubiquitylating enzymes (DUBs) determine the stability or function of the modified proteins. In contrast with ubiquitylating enzymes, there are less numbers of DUBs. DUBs can be classified into seven protein families according to the amino acid sequence of their catalytic domains. The catalytic domains of animal and plant DUB families show high homology, whereas the regions outside of the catalytic site can vary a lot. By hydrolyzing the ubiquitin molecules from ubiquitylated proteins, DUBs control ubiquitin-dependent selective protein degradation pathways such as the proteasomal-, autophagic-, and endocytic degradation pathways. In the endocytic degradation pathway, DUBs can modulate the endocytic trafficking and thus the stability of plasma membrane proteins including receptors and transporters. To date, three DUB families were shown to control the endocytic degradation pathway namely associated molecule with the SH3 domain of STAM (AMSH) 3, ubiquitin-specific protease (UBP) 12 and UBP13, and ovarian tumor protease (OTU) 11 and OTU12. In this review we will summarize the activity, molecular functions, and target protein of these DUBs and how they contribute to the environmental response of plants.
On the design of cost minimization for D2D‐enabled wireless caching networks: A joint recommendation, caching, and routing perspective
Authors: Hua Yu , Fu Yaru , Zhu Qi
Published: January 2024

Cache‐enabled device‐to‐device (D2D) network has been deemed as an effective technique to offload the data traffic. However, the gain of the caching schemes is closely related to the homogeneity among users' preference distribution. To tackle this issue, recommendation is a promising proactive approach. It increases the request probability of recommended contents, reshaping users' contents demand patterns, and improving caching performance. Moreover, considering the heterogeneous network settings, i.e. content retrieval costs vary, the routing design becomes a non‐negligible factor on caching performance optimization. On these grounds, the average system cost of D2D‐enabled wireless caching networks with multiple BSs is first described. Then the routing strategies are designed together with caching and recommendation policies by minimizing the average cost of these networks. The optimization problem is proven as NP‐hard. To facilitate the analysis, the original problem is decoupled into two sub‐problems and solve them respectively. Afterwards, all the variables are optimized in an alternating manner until the convergence is achieved. The proposed algorithm's convergence performance and benefits over benchmark strategies in terms of total cost and cache hit ratio are supported by Monte‐Carlo simulation results.
A fully integrated nanosecond burst RF generator for quantum technologies
Authors: Sánchez‐Azqueta Carlos , Aldea Concepción , Celma Santiago
Published: January 2024

Quantum technologies is an emerging field of physics and engineering based on exploiting properties of quantum mechanics such as entanglement, superposition, or tunneling, and which is expected to impact many applications, such as communications, simulation, computation, or sensing and metrology. The operation of quantum technologies is based on the manipulation of the quantum states of certain devices, either to induce transitions between states or to detect the transitions. Irrespective of the practical realization of these quantum devices, their manipulation requires interacting with their quantum resonant states, for which very narrow radio‐frequency (RF) bursts in the range of the GHz are required. Arbitrary waveform generators are used to generate these signals for test purposes, but this is not suitable for practical quantum technology applications, which will need to produce the required bursts by specific circuit building blocks with low power and small dimensions. Here, an integrated RF burst generator capable of producing GHz bursts shorter than 1 ns is presented. The proposed architecture is tested using a 5 GHz quadrature LC‐tank voltage‐controlled oscillator (LC‐VCO), showing that the four equally spaced phases can be switched every 500 ps, which allows the generation of more complex RF bursts for optimized quantum state manipulation.
Enhanced trust management for building trustworthy social internet of things network
Authors: Roy Swati Sucharita , Sahu Bharat Jyoti Ranjan , Dash Shatarupa
Published: January 2024

Internet of Things (IoT) and wireless communication technologies are evolving rapidly and changing the way we live and work. IoT devices may need to share personal information over the public network taking the help of nearby devices. Thus, the trustworthiness of nearby devices shall play an essential role in providing security and privacy assurance. The authors proposed an autonomous decentralised trust management model for selecting a trustworthy device for a requested service transaction. The proposed scheme uses the Social Internet of Things for trust management. The proposed model uses social relationships to find the level of trust among related devices, estimate the overall trust of the unknown devices, periodically update the observed trust values, and isolate the malicious nodes in the network. The evaluated trust values are updated in the network frequently so that other devices can utilise the information later. The periodic update can increase performance and detect trust‐related malicious attacks. The simulation result shows that the performance of the proposed model is better as compared to existing trust management models. The proposed model can detect malicious objects at an early stage and can handle malicious attacks by isolating malicious devices.
Impact of reduced sonic boom exposure on psychophysical and cognitive performance for simulated booms presented in a realistic indoor environment
Authors: Marmel Frédéric , Cretagne Léo , Thuong Linh-Thao , Coulouvrat François , Fritz Claudia
Published: January 2024

This study aimed to quantify, in situations representative of the daily life of European citizens, the effects of sonic boom exposure on human responses, in the case of a new generation of supersonic commercial aircraft that should emit a reduced (compared to the past generation like Concorde) but perceivable boom while flying overland. Two reduced boom simulators were affixed to the bedrooms’ windows of a house located on our university campus. The simulators were used to study indoor the participants’ responses to realistic “outdoor” booms. Testing took place in both the living room and kitchen because the booms caused different intensities of rattle noise in those two rooms. Participants performed various tasks (communication, working memory, drawing, valence evaluation), took three mandatory rests and filled in various questionnaires about the annoyance caused by the booms and their mood. This paper focuses on the psychophysical and cognitive performance results. The booms resulted in delayed responses in the working memory task and in the valence evaluation task, and in a momentary slowing down in the drawing task. There was no significant effect in the communication task, even though a trend for a worsening of communication efficiency was observed. Taken together, the results suggest that reduced booms can interfere with cognitive and motor tasks by capturing attention, which can momentarily divert cognitive resources away from the task at hand. These results suggest future research directions and may lead to recommendations for future sonic boom regulations.
Introduction of innovative technologies for the effective use of permanent plants in the conditions of the chuy region
Authors: Belek uulu Esenbek , Chortombaev Ulan Tyrgootovich , Abdyrakhmanov Tolobek Abylovich , Ishekeev Nazarkul , Kasymova Nazira Omurkulovna , kyzy Umut Zholdoshali
Published: January 2024

In this article, we analyze the possibilities and prospects for digitalization of farms in the Chui region in perennial plantations, using the example of intensive gardening that has become popular in recent years using MS Access programs suitable for gardeners. We will discuss the combination of this topical topic and, also often discussed, an innovative direction in the agricultural sector, intensive horticulture: the digitalization of intensive horticulture and its prospects in our country. In the process of studying the problem, theoretical methods of scientific research were used. It is abstract and generalized. The main result of the study is the process of creating and planning a database for the MS Access program that facilitates the activities of gardeners in perennial plantations in the Chui region. Conclusions and main scientific novelties – analysis of the MS Access database, creation and schematic analysis of databases to facilitate the work of gardeners in the peasant farm “Islambek” of the Sokuluk district of the Chui region.
Forming communicative competence among workers of agrarian industry of Kyrgyzstan using multimedia technologies
Authors: Kulibaba Irina , Hudayberdiyeva Gulshat
Published: January 2024

The article substantiates the relevance of using multimedia technologies to establish effective communication between agricultural specialists. The concept of qualitative formation of communication at the stages of training of a specialist in educational organizations and in the course of subsequent professional activity is developed. The presented concept is fair for any branch of agriculture and is able to set up communications both within the team of one farm and between the teams of different agricultural organizations. The concept is based on the principle of using multimedia technologies that allow simulating practical situations to evaluate the actions performed by specialists to solve the created problem.
Information system using computer vision technology for innovative beekeeping development
Authors: Mudrakova Olga , Kolodochkin Aleksandr , Beresneva Yana
Published: January 2024

The article substantiates the necessity of introducing modern digital technologies into beekeeping processes to systematize and improve the efficiency of the relevant processes of management, control, and organization of operations. For this purpose, an information system has been developed to organize the interaction of beekeepers with state authorities and consumers of products. In addition, using computer vision and Internet of Things technologies in the system, control over the state of apiaries, and works carried out, a system of recommendations for its effective maintenance is formed.
Ecological tax as a tool for leveling the negative impact on the environment
Authors: Ivanov Maxim Olegovich , Pinskaya Milyausha Rashitovna , Bogachov Sergey Valentinovich
Published: January 2024

The current environmental impact fee falls short in compensating harm and encouraging environmental protection. It lacks fiscal function and transparent regulation, risking unreliable pollution accounting. The hypothesis of the study is that the transition to tax relations with organizations and individual entrepreneurs that have a negative impact will create objective prerequisites for the effective regulation of environmental externalities by increasing the reliability of the payment base, improving administration as a result of establishing tax liability and tax incentives for environmental protection measures. The purpose of the study is to develop the concept of an environmental tax as a way to achieve a balance of interests of the state, society and companies while reducing emissions, discharges of pollutants and waste disposal. The study is based on general scientific methods of scientific knowledge (analysis, synthesis, generalization, grouping, classification), as well as special economic and mathematical methods. The concept has been proposed and the elements of an environmental tax have been developed to replace the current fee for negative environmental impact. The novelty lies in the proposed approach to the calculation of the tax base, based on the “conditional pollutant” indicator, the use of which greatly simplifies the mechanism for calculating and administering the tax.
Project for the development of the Eurasian transport framework in the countries of Central Asia
Authors: Logachev Maxim , Limarev Pavel
Published: January 2024

The paper puts the importance of an international transport corridor for the Republic of Kazakhstan. Two directions of railway communication within the latitudinal Central Eurasian Corridor have been identified. A technique has been developed for applying simulation modeling to identify the bottlenecks on the way of railway flows. Bottlenecks include the intersections of vehicular and pedestrian traffic with rail traffic. In such places, conflicting flows are formed, which may be accompanied by a merger of individual flows. Using the methods of structural analysis, synthesis, system analysis and step-by-step inclusion (or exclusion), the input parameters of simulation models of objects and processes have been established for the case study of Aktobe city in the Republic of Kazakhstan. A graphical model of the behavior of groups of objects for conflicting flows in bottlenecks has been developed, being the basis for the simulation model.
Forecasting water traffic of the north-south transport corridor on the territory of the Russian Federation using simulation modelling
Authors: Boikova Galina , Ishenbaeva Svetlana , Khachikyan Elena , Patsakula Irina , Laamarti Yuliya , Sidorenko Olga
Published: January 2024

The paper defines the structure and importance of the international North-South transport corridor. The types and points of routes that run through the territory of Russia have been identified. These routes include road, rail and water. The main water route and its branches have been identified. Examples of the content of water traffic along the Volga River have been given. A parametric model of vessel movement has been developed, being the basis for the simulation of water routes. As examples, fragments of diagrams of the state of ships movement in the section from Nizhny Novgorod to Kazan have been provided. Such diagrams are part of a simulation model that allows implementing different scenarios for the organization of navigation in particular areas.
International Cooperation Between Universities And Business As A Condition For Raising Human Development Level
Authors: Bahdanava Alena , Gaydova Marina , Izmailovich Sviatlana , Voronko Elvira , Kostuchenko Elena
Published: January 2024

One of the main indicators of human development is the integral indicator Human Development Index, which includes an assessment of the quality and standard of living of the population, and also takes into account the level of educational development of the population. The authors identified the development of network interaction between universities and business at the international level as one of the ways to increase the level of this indicator. The article analyzes the indicators of life expectancy, the level of income of the population, as well as some macroeconomic indicators of the six neighboring countries. Conclusions are drawn about a possible increase in the Human Development Index indicator based on improving the network interaction between the higher education system and the real sector of the economy, and one of the factors for enhancing network interaction in the labor market is labor mobility, and at the level of macroeconomic development international labor migration. In addition, the authors proposed a number of measures to strengthen the tightness of the network interaction between the customers of personnel and the educational services market, and indicated the forms of such interaction at the international and domestic level.
Scientific and methodological foundations of professionally-oriented teaching of mathematics to students of agricultural direction
Authors: Kudaibergenova Zhyldyz , Askarova Nurila , Abduldaeva Nurzada , Sagyndykova Kenzhe , Cetin Nazgul
Published: January 2024

The education system has been fulfilling its function for many years, creating a system of education that corresponds to it. In particular, we can say about the content of the mathematics course and the structure of the course, teaching methods, use in the traditional form. Currently, teaching a mathematics course to undergraduate agricultural students who are not mathematicians is a problem for teachers. Its reason can be explained by the negative attitude of the vast majority of students of this direction to mathematics: “in the process of studying, students do not understand mathematics or do not understand any stage of training; the lack of simple and reliable mathematical examples that can be applied to a future profession.” Therefore, there is a need to update the teaching status of the current mathematics course.
Interdependence of the rural housing stock and the rural population: a scientific perspective
Authors: Assylbayev Aidar , Niiazalieva Kunduzkul , Kryzhanova Larisa , Ploskikh Elena , Kumskov Gennadii
Published: January 2024

This scientific article addresses the pressing issue of providing decent housing for the rural population of the Kyrgyz Republic, which has arisen due to uneven development of demographic and housing trends in rural areas. The research aims to solve this regional problem by managing interdependent demographic and housing trends. The study employs a general scientific methodology to analyze the relationship between the rural population and the volume of rural housing stock. A methodological approach to solving the regional problem of housing provision is presented, including a statistical analysis of demographic and housing aspects in time and space. The main results of the study include data on the mutual influence of demographic and housing dynamics in rural areas and a comparative forecast of demographic and housing parameters of rural development until 2030. Recommendations are provided within the framework of the Republican housing program “My Home” for 2021-2026. This study is highly significant in terms of its practical applicability and relevance for the development of regional policy.
Investigation of the quality of functioning of a quadrature signals receiver of a continuous automatic cab signaling on records of real signals and interference
Authors: Yusupov Ruslan R. , Khokhrin Alexey S. , Zolkin Alexander L. , Merganov Avaz M. , Grigoriev Mikhail G.
Published: January 2024

Ensuring a safe transportation process is impossible without the use of complex systems for interval regulation of train traffic. In particular, such a system is a continuous automatic cab signaling (CACS) where signals are affected by various kinds of interference, leading to system failures. To reduce the number of system failures, the authors previously proposed a quadrature signal receiver of CACS (QSR of CACS). The article presents the methodology and results of an experimental study of the quality of the functioning of the QSR of CACS on records of real signals and interference. A simulation model of the test facility has been developed in the Simulink simulation environment. The study showed that the QSR of CACS provides reliable reception of CACS code signals with a low level of interference. However, it needs to apply additional measures in it to reduce the influence of impulse noise.
Ensuring transport security during cargo transportation
Authors: Solonshickov Pavel , Tolstoukhova Irina , Shevchenko Artem , Kokorina Polina
Published: January 2024

Road transport is one of the most widespread and popular in the field of cargo transportation services. Even in the case of using rail, air or sea transport, trucks deliver cargo from a train station, airfield or port to the final destination. Well, in the case of local transportation, trucks are the only way to transport objects from one point to another. This article discusses the analysis of the KAMAZ-55102 dump truck, namely the graphoanalytic calculation of determining the characteristics of the car: the total estimated acceleration time and the total estimated path.
Balancing security and user experience in the evolving digital landscape
Authors: Okoli Kingsley , Bekeneva Yana
Published: January 2024

In today's digital landscape, the prevalence of automated threats poses a significant challenge to online security. This study addresses the evolving landscape of online security by investigating next-generation CAPTCHAs, which aim to strike a balance between heightened security and an enhanced user experience. The relentless arms race between automated threats and online security necessitates the development of innovative solutions capable of countering advanced technological threats while ensuring a seamless user experience. The primary objective of this research is to explore and evaluate the effectiveness the presented approach in enhancing online security and user satisfaction. We examine how the integration of behavioral biometrics, gamification techniques, and supplementary tools such as device fingerprinting, geolocation, and browser attributes can contribute to a more robust and user-friendly CAPTCHA experience. Our study employs a comprehensive methodology, including a thorough literature review, and data collection from diverse sources. We evaluate the authenticity of these advanced systems, taking into account their ability to adjust to ever-changing digital environments. However, challenges persist in striking the right balance between security and convenience, addressing privacy concerns, and adapting to evolving digital landscapes. These findings validate the critical importance of ongoing research and innovation technology to safeguard online platforms effectively.
Calculation for variations in resistance force during trailer unloading device operation
Authors: Baynazarov Khayrullo , Turayev Shoyadbek , Giyasidiniv Abdumannob , Ismailov Sarvarbek , Maxammadjonov Nurmuxammad , Sotvoldiyev Xasanboy
Published: January 2024

Transportation tasks can make up up to 20% of the labor expenditures associated with growing, harvesting, and shipping agricultural commodities, and their expenses can reach up to 35.40 percent of the entire cost of production. In addition, labor-intensive loading and unloading procedures involve packed and piece items Employing mobile loading equipment that can travel straight across the field is the foundation for mechanizing the loading and transfer of packed, packaged, and piece items. Conflicting needs for the loading and transport systems of such units lead to insufficient serial unit efficiency metrics, most notably productivity and resource intensity. The article comprehensively studied the changes in the resistance force and their equations in the working process of the liftingtipping device trailers.
On the construction of data protection algorithms in cyberphysical systems
Authors: Iskhakov Andrey
Published: January 2024

Technology is playing an increasingly important role in our lives, and at the same time, data protection is becoming a critical issue. The article considers a particularly important sector - ensuring data security in cyberphysical systems of adaptive type, which combine physical and informational components. This paper proposes an approach presented in the form of a sequence of actions to adjust (optimize) the protection mechanisms by analyzing the state of the complex of automated systems involved in the processing of restricted access information obtained during the operation of cyber-physical systems for compliance with the required level of information security. Each subsystem processing the target information is assigned a specific security class. Optional barriers can be installed between subsystems of the same class, which ensures blocking of uncontrolled access to restricted data; management of components of all protected data. The results of approbation, representing the evaluation of using the proposed algorithm to modernize the subsystem of CPS protection against malware introduction, indicate its high efficiency.
Multi-layer cross-country maps as a data source for solving the problem of laying a route
Authors: Dobretsov Roman , Voinash Sergey , Ariko Sergey , Partko Svetlana , Dzjasheev Abdul-Mudalif , Zagidullin Ramil , Akhmetshin Stanislav
Published: January 2024

Representation of information about the surface of movement in the form of discrete maps of patency is used in problems related to the management of autonomous vehicles. The technology was developed for use on rovers. The areas of autonomous transport, transport and technological machines operating in an artificial and natural environment, mobile robots seem to be promising. The principle of building maps of patency and methods for choosing the trajectory of movement have a great potential for expanding the volume of information entered into the cells of the map, variability of the approach to the criteria for optimality of the trajectory, etc. The basics of the technology for preparing information about the area, the principles of using this information in solving the transport problem are presented, simple examples are given.
Estimated assessment of the static position of the hull with a change in the pre-tensioning force of the tracks
Authors: Bazhukov Artem , Rolle Vladimir , Stepina Polina , Akhmetshin Stanislav , Yakushev Adel , Orekhovskaya Alexandra
Published: January 2024

The article proposes a method for calculating the static position of the machine body. The mathematical model of the running gear is given. The dependence of the position of the center of mass in height relative to the ground on the pre-tension forces, as well as the angular deviation of the longitudinal axis of the hull from the horizontal position, is shown. A control calculation was performed, the results of which are presented in the form of graphical dependencies. The numerical experiment was carried out on the example of a tracked vehicle of a light category with a rear drive wheel.
Modern issues of forming an assessment of the effectiveness of the functioning of public urban passenger transport systems
Authors: Mochalin Sergey , Koleber Yuliya , Shonin Anatolij , Larin Andrej
Published: January 2024

The article is devoted to the formation of an assessment of the effectiveness of the functioning of public urban passenger transport systems. The great potential of urban passenger transportation in maintaining the economic stability of the regions and the important social significance for the population substantiate the relevance of forming reliable estimates of the transportation process in the city. However, at present there are problems in the field of forming an assessment of the effectiveness of the functioning of public urban passenger transport systems. These problems do not allow the formation of sufficient and reliable evaluation indicators that would help to form timely corrective actions and sound management decisions. The article analyzes these problems and based on it, the requirements for evaluating the effectiveness of public urban passenger transport systems are compiled. Based on these requirements, an algorithm for forming a performance assessment model in the field under consideration has been formed. The results of the study can be useful both for specialists in the field of planning transport processes in the city, and as a theoretical basis for the formation of a methodology for assessing the effectiveness of the functioning of public urban passenger transport systems.
Increasing oil absorption in bearings as a result of ultrasonic exposure to ultrafine particles
Authors: Siddikova Sadokat , Sirojidinov Shamilidin , Bakhriddinova Nasiba , Zaripova Mokhira , Juraeva Malokhat
Published: January 2024

The article proposes an approach that ensures an increase in oil absorption by bearings as a result of ultrasonic exposure to ultrafine particles. The approach is based on the method of thermodynamics and kinetics of the formation of inorganic ultrafine particles in liquid-phase processes. The work shows that one of the promising ways to improve the antifriction characteristics of bearing materials is the impregnation of porous hardened materials with oils with the addition of special solid carbon additives. The goal of the work is to develop an antifriction self-lubricating powder material that meets modern requirements for bearing units. The cavitation method is considered taking into account the impact action of liquid microjets. In this case, the ratio of the sizes of the cavitation bubble and the solid particle is taken into account. An increase in the effectiveness of the influence of ultrasonic waves on the oil absorption of the bearing material has been shown.
Evaluation of the maturity level of sustainable transport enterprise development
Authors: Mozhaeva Tatyana , Simkin Albert , Proskurin Alexander
Published: January 2024

The paper considers one of the conditions for ensuring the sustainable development of a transport enterprise, i.e. the correct evaluation of its maturity level. The difficulties are found which are associated with the choice of tools for evaluating the level of maturity of sustainable development achieved by a transport enterprise as a result of implementing its sustainable development. An approach is proposed to integrate the quality management system of a transport enterprise and the concept of sustainable development, which is based on international ISO 9000 standard, which acts as a base for industry standards, and harmonized with GOST R 54598.1- 2015. The procedure of evaluating the levels of QMS maturity and sustainable development of the enterprise are considered, which methodological basis is the method for evaluating the maturity of processes by R. Gardner and the maturity matrix of sustainable development in accordance with GOST R 54598.1-2015. The arguments are given to prove the expediency of using the proposed approach in evaluating the level of a transport enterprise maturity for compliance with the criterion of sustainable development and the quality of its processes.
On the oriented coloring of the disjoint union of graphs
Authors: Coelho Erika Morais Martins , Coelho da Silva Hebert , Faria Luerbio , de Paula Ferreira Mateus , Gravier Sylvain , Klein Sulamita
Published: January 2024

LetG⃗ = (V, A) be an oriented graph andGthe underlying graph ofG⃗. Anorientedk-coloringofG⃗ is a partition ofVintokcolor classes, such that there is no pair of adjacent vertices belonging to the same class and all the arcs between a pair of color classes have the same orientation. The smallestksuch thatG⃗ admits an orientedk-coloring is theoriented chromatic numberχo(G⃗) =kofG⃗. Theoriented chromatic numberχo(G) of the undirected graphGis the maximum ofχo(G⃗) for all orientationsG⃗ ofG. Oriented chromatic number of the product of two graphsG1,G2was widely studied, but the disjoint unionG1∪G2has not yet been considered. In this article we proved bounds for the oriented chromatic number of any two oriented graphs and we also proved that given two complete graphsKnandKmwithn≥m, there is a real numberα∈(1, 3) such thatχo(Kn∪Km) =n+m−αlog2(m). Additionally, we established exact values of the union of one complete graph with one cycle and of one complete graph with a forest.
One size does not fit all – Ergonomieberatung
Authors: Hübler Cornelia , Sanning Nico
Published: January 2024

Rückenschmerzen sind ein weit verbreitetes Phänomen. Kommt es zur Behandlung der Schmerzen, etwa in einer stationären Reha, können Ergotherapeut*innen unter anderem die Aufgabe der Ergonomieberater*innen übernehmen. Neue Erkenntnisse zeigen, dass es bei der Behandlung von Rückenschmerzen mehr als der Aufklärung über ergonomische Möbel bedarf. Es rückt die biopsychosoziale Sichtweise auf Klient*innen in den Vordergrund. Denn es spielen Faktoren wie Lebensstilintervention und die Nutzung von persönlichen Ressourcen eine wichtige Rolle.
Alle sind gefragt! – Planetary Health
Authors: Kranz Florence
Published: January 2024

Da sich die Klimakrise nachweislich auf die Gesundheit der Menschen auswirkt, ist das Konzept der Planetary Health auch für Ergotherapeut*innen relevant. Wie aber können sie diese Thematik konkret in Praxis, Lehre und Forschung aufgreifen und welche strukturellen Voraussetzungen brauchen sie hierfür? Diesen Fragen sind Lea Hagemeier und Jana Ruth Zisowsky in ihrer Bachelorarbeit an der Hochschule Osnabrück nachgegangen.
Interdisziplinäre Diagnostik und Therapie von malignen Mesotheliomen
Authors: van der Linde Lea I. S. , Hantzsch-Kuhn Birgit , Ellebrecht David , Stellmacher Florian , Welker Lutz
Published: January 2024

Das asbestbedingte maligne Mesotheliom (MM) gehört in Deutschland mit ca. 1000 Neuerkrankungen pro Jahr zu den häufigen berufsbedingten Krebserkrankungen. Die Diagnose eines MM ist, sofern die entsprechenden diagnostischen Kriterien erfüllt sind, sowohl aus histologischem als auch aus zytologischem Probenmaterial mit hoher Spezifität möglich. Allerdings werden viele MM zyto-/histologisch erst in fortgeschrittenen Stadien entdeckt. Klinisch/radiologische Aspekte ergänzen die Diagnostik und ermöglichen eine interdisziplinäre Beurteilung des Tumorstadiums und individuelle Entscheidungen über die bestmöglichen Therapieoptionen für jeden einzelnen Patienten. Diagnostisch hat die videoassistierte Thorakoskopie (VATS) den höchsten Stellenwert. Die Therapieplanung orientiert sich am vorliegenden MM-Subtyp, der Tumorausbreitung und Stadium sowie dem klinischen Zustand des Patienten. Die Prognose des MM ist im Allgemeinen sehr ungünstig. Dementsprechend zielt die Standardtherapie auf eine makroskopische radikale Tumorresektion im Sinne einer Zytoreduktion im Rahmen eines geeigneten multimodalen Therapiekonzepts (Chemotherapie, Strahlentherapie, Psychoonkologie). Ziel palliativer Maßnahmen sollte v.a. die Symptomkontrolle sein. Insgesamt ist die interdisziplinäre Diagnostik und Therapie des MM entscheidend für die bestmögliche Versorgung der MM-Kranken.
Deep Circumflex Iliac Artery-vascularized Iliac Bone Graft for Femoral Head Osteonecrosis: Computed Tomography Anatomical Study
Authors: He Jiale , Lu Yunxiang , Chen Yuxian , Peng You , Zhu Qi , Li Zhiyong
Published: January 2024

Background Deep circumflex iliac artery (DCIA)-vascularized iliac graft transposition is a method for treating femoral head osteonecrosis but with inconsistent efficacy. We aim to improve the method of this surgery by recommending the optimal location of the iliac pedicle to satisfy the vascular length for transposition and the blood supply of the vascularized iliac graft.

Methods The DCIA and its surrounding tissues were assessed on computed tomography angiography images for 100 sides (left and right) of 50 patients. The length of the vascular pedicle required for transposition and the length of the pedicle at different iliac spine positions were compared. The diameter and cross-sectional area of the DCIA and the distance between the DCIA and iliac spine were measured at different points to assess blood supply. We also compared differences in sex and left–right position.

Results The diameter and cross-sectional area of the DCIA gradually decreased after crossing the anterior superior iliac spine (ASIS), and it approached the iliac bone. However, when the DCIA was 4 cm behind the ASIS (54 sides, 54%), it coursed posteriorly and superiorly away from the iliac spine. The vascular length of the pedicle was insufficient to transpose the vascularized iliac graft to the desired position when it was within 1 cm of the ASIS. The vascular length requirement was satisfied, and the blood supply was sufficient when the pedicle was positioned at 2 or 3 cm.

Conclusion To obtain a satisfactory pedicle length and sufficient blood supply, the DCIA pedicle of the vascularized iliac graft should be placed 2 to 3 cm behind the ASIS. The dissection of DCIA has slight differences in sex and left–right position due to anatomical differences.
Identifying Functional Lymph Nodes in Lower Extremity Lymphedema Patients: The Role of High-frequency Ultrasound
Authors: Alshomer Feras , Jeong Hyung Hwa , Pak Changsik John , Suh Hyunsuk Peter , Hong Joon Pio
Published: January 2024

Background Lymph nodes may play a potential role in lymphedema surgery. Radiologic evaluation of nodes may reveal the status of pathologic conditions but with limited accuracy. This study is the first to evaluate the efficacy of ultrasound in detecting functioning nodes in lymphedema patients and presents a criterion for determining the functionality of the lymph nodes.

Methods This retrospective study reviews 30 lower extremity lymphedema cases which were candidates for lymph node to vein anastomosis. Lymphoscintigraphy and magnetic resonant lymphangiography (MRL) imaging were compared with ultrasound features which were correlated to intraoperative indocyanine green (ICG) nodal uptake as an indication of functionality.

Results Majority were International Society of Lymphology stage 2 late (50.0%) and stage 3 (26.7%). ICG positive uptake (functioning nodes) was noted in 22 (73.3%), while 8 patients (26.6%) had negative uptake (nonfunctioning). Ultrasound had significantly the highest specificity (100%) for identifying functional nodes followed by lymphoscintigraphy (55%) and MRL (36%; p = 0.002, p < 0.001, respectively). This was associated with 100% positive predictive value compared against lymphoscintigraphy (44%) and MRL (36%; p < 0.001 for both). The identified ultrasound imaging criteria for functioning lymph node were oval lymph node shape (Solbiati Index), morphology, vascularity pattern, and vascularity quantification.

Conclusion The use of ultrasound in nodal evaluation was proven effective in different pathologic conditions and demonstrated the best prediction for functionality of the lymph node based on the new evaluation criteria.
Palliative Care in Neuro-oncology
Authors: Besbris Jessica M. , Taylor Lynne P.
Published: January 2024

Historically, the practice of neurology as an independent subspecialty from internal medicine began in Europe and the United States in the 1930s. The American Academy of Neurology (AAN) was founded 75 years ago in 1948, solidifying its emergence as a stand-alone discipline of medicine. In 1967, St. Christopher's Hospice, the first free standing hospice home, was opened in London by Dame Cicely Saunders. Dame Saunders is considered a pioneer in the development of the hospice movement, and she embodies the importance of the multi-disciplinary team in the care of the patient, as she began her career as a nurse, then became a social worker and, finally, a physician. A decade later, in 1978, Dr. Balfour Mount, a Canadian urologic cancer surgeon, coined the term “palliative care” (“to improve the quality of life”) after having spent time with Dr. Saunders at St. Christopher's some years earlier. The field of palliative care continued to develop as a distinct subspecialty focused on improving quality of life for patients at any age and in any stage of serious illness. In a 1996 position statement, the AAN made clear that the practice of primary palliative care is the responsibility of all neurologists to their patients. Finally, coming full circle, the specialty of neuro-palliative care, a subspecialty not just of neurology but of palliative medicine, became established around 2018. Neuro-palliative care can be seen as a specialty focusing on the holistic approach to symptom management in patients suffering from neurologic disease with the aim of improved symptom control and attention to the psychologic and spiritual aspects of illness.
Trends in Gender-Affirming Surgeries in the United States from 2010 to 2021
Authors: Ha Ally , Garoosi Kassra , Hale Elijah , Higuchi Ty , Winocour Julian , Mathes David W. , Kaoutzanis Christodoulos
Published: January 2024

Introduction: In 2017, an estimated 1.6 million adults and 150,000 teenagers identified as transgender in the United States. With ever-changing legislative developments regarding health care benefits for this population and the increasing number of patients presenting for gender-affirming surgery (GAS), there is a scarcity of literature on the temporal trends within the past decade. The objective of this study was to examine the temporal trends of the utilization of GAS.

Methods: We conducted a cross-sectional study using TriNetX, a federated research network containing deidentified aggregate patient data. Using International Code of Disease (ICD) and Current Procedural Terminology (CPT) codes, we identified patients with a diagnosis of gender dysphoria who underwent GAS from 2010 to 2021. Basic demographic information and complications were analyzed. Complications of interest included site failure, infection, and systemic complications.

Results: We identified a total of 8,403 patients who underwent GAS between January 2010 and December 2021. The number of procedures per year increased nearly 500% between 2016 and 2021 from 421 procedures to 2,224 procedures. Our demographic results were consistent with previous survey-based studies. The average age of patients who underwent masculinizing surgeries was consistently younger than those who underwent feminizing surgeries. Most patients undergoing GAS were of white race. The overall complication rate was 4.7%.

Conclusion: In conclusion, our study reveals a significant and rapid rise in the utilization of GAS in the United States, with a fivefold increase in procedures between 2016 and 2021. The demographic characteristics and low complication rates observed highlight the evolving landscape of health care for transgender individuals and the need for ongoing assessment and support in this field.
Patterns before recognition: the historical ascendance of an extractive empiricism of forms
Authors: Üstün Berkay
Published: January 2024

This article explores the complex convergence between cybernetics and Gestalt theory and its influence on the concept of pattern recognition. It finds a departure in the analogous ways each discipline extends their core frameworks toward social and anthropological objects. However, this shared ground is not without tensions. In the post-war American context, what is formalizable and realizable in mechanical structures has a certain explanatory authority—even if often misplaced-- concerning perception and human intelligence. Cultural patterns feed into mechanical recognition of patterns, exemplifying “extractive empiricism” or the process of outsourcing experiential processes to mechanical systems. This mode of “proof” is also evident in cybernetic and cognitive psychological strategies toward Gestalt theory, leaving a significant legacy for contemporary machine learning approaches. By examining the early interactions between these rival paradigms, known for their quest for generalization, and disentangling their source status, this inquiry contributes to understanding the broad conceptual possibilities of pattern recognition beyond its narrow confines in engineering perspectives and machine learning discourse.
Validation of MARS-F modeling of plasma response to RMPs using internal measurements on DIII-D
Authors: Sun Xuan , Liu Yueqiang , Lao Lang , Paz-Soldan Carlos , Milliano Joe
Published: January 2024

The linear resistive plasma response model is validated against the plasma internal measurement data from DIII-D edge-localized mode (ELM) control experiments with applied resonant magnetic perturbation (RMP). Considered are DIII-D discharges where the n = 1, 2, and 3 (n is the toroidal mode number) RMP field was applied. Experimental data for the plasma boundary displacement, as well as the three-dimensional (3D) pressure perturbation in the edge pedestal region, are deduced from the vertical Thomson scattering (TS) system and the horizontal charge exchange recombination (CER) system on DIII-D. The linear response model produces results that are in reasonable quantitative agreement with the DIII-D internal measurements. The plasma boundary displacement of up to 15 mm is modeled, with the pedestal pressure perturbation reaching 3 kPa. As an important insight, the larger plasma displacement measured by the vertical TS system, as compared to that measured by the horizontal CER system, is due to the contribution from the tangential component of the plasma displacement to the former. This mixing of displacement components is also found to influence the sensitivity of the CER measurement comparisons. The results of this study provide further confidence in the linear resistive plasma response model for analyzing ELM control experiments.
Intelligent programmable metasurface for vibration field sensing and electromagnetic reflection modulation
Authors: Zhou Wu Wei , Ye Fu Ju , Li Xiao Qi , Cui Hao Yang , Chen Lei
Published: January 2024

While existing research has explored control strategies in multi-dimensional fields, the interconnectedness between electromagnetic and vibrational fields remains relatively uncharted. To explore this intersection and harness its potential, we propose an intelligent programmable metasurface that modulates electromagnetic fields based on vibration intensity information. This paper introduces a groundbreaking approach that synergizes the physical fields of mechanical (vibrational) waves with electromagnetic waves, facilitating the detection and manipulation of information from both fields. By combining a programmable metasurface, vibration sensors, and microcontroller units, we have achieved regulation of the electromagnetic field through utilization of vibration intensity information. In this work, we have introduced six coding patterns that facilitate dual-beam scanning with variable deflection angles. A 20 × 20 metasurface is fabricated and measured, and the measured results are in good agreement with the simulated results. This research opens a new avenue for manipulating electromagnetic waves. Furthermore, the findings have the potential to impact a wide range of fields, including building structuralhealth monitoring, industrial production, mechanical equipment monitoring, and earthquake monitoring.