bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploitation et Développement de Reservoirs Geothermiques Basse Enthalpie: Le Dogger Ou Bassin Parisien
Authors: Rojas Juan
Published: July 2023

A feature of French geothermal engineering is the development of industrial projects in normal gradient, non-convective areas. The Economic feasibility of exploiting highly productive wells (between 150 and 350 m³/h at temperatures from 55° to 85°C and depths of 1,500 to 2,000 m) for direct heat production in sedimentary basins with normal gradient, has been proved by the 50 plants mounted during the last few years which provide heat for over 500,000 people. This opens new possibilities for geothermal energy development over the world, in particular for areas where heat consumption is higher than 2,500 Toe/year in a few km². The recent and rapid development of geothermal projects in France, in particular in the Paris Basin has provided much more information on the characteristics of the Jurassic "Dogger", which is the unit tapped by most geothermal doublets (one production and one injection wells). Detailed study of the Dogger reservoir in the Paris Basin is one of the main objectives of the IMRG research and development program drawn up in 1983. The preliminary results presented here are oriented towards, (i) improved knowledge of the potential geothermal resources, and (ii) analysis of optimum exploitation conditions. Uma característica da engenharia geotérmica francesa é o desenvolvimento de projetos industriais em áreas não-convectivas de gradiente normal. Foi comprovada a factibilidade econômica de exploração de poços altamente produtivos (entre 150 e 350 m³/h, temperaturas entre 55° e 85°C e profundidades de 1500 a 2000 m) para a produção direta de calor, em bacias sedimentares com gradiente normal, através de 50 plantas instaladas durante os últimos anos, as quais proporcionam calor para mais de 500.000 pessoas. Isto abre novas possibilidades para o desenvolvimento de energia geotermal a nível mundial, em particular, nas áreas onde o consumo de calor é maior que 2.500 Toe/ano em poucos km². O desenvolvimento rápido e recente de projetos geotermais na França, particularmente na Bacia de Paris, proporcionou muita informação sobre as características do "Dogger" jurássico, que é a unidade perfurada pela maioria dos poços geotermais (um de produção e o outro de injeção). Estudo detalhado do reservatório "Dogger" na Bacia de Paris, é um dos principais objetivos do programa de desenvolvimento e pesquisa do IMRG, preparado em 1983. Os resultados preliminares apresentados neste trabalho têm as seguintes finalidades: i) melhorar o conhecimento das fontes potenciais de calor e ii) analisar as condições ótimas de exploração.
FedFog - A federated learning based resource management framework in fog computing for zero touch networks
Authors: Khan Urooj Yousuf , Soomro Tariq Rahim , Kougen Zheng
Published: July 2023

Fog computing offers an optimal answer to the expansion challenge of today’s networks. It boasts scaling and reduced latency. Since the concept is still nascent, many research questions remain unanswered. One of these is the challenge of Resource Management. There is a pressing need for a reliable and scalable architecture that meets the Resource Management challenge without compromising the Quality of Service. Among the proposed solutions, Artificial Intelligence based path selection techniques and automated link detection methods can provide lasting and reliable answer. An optimal approach for introducing intelligence in the networks is the infusion of Machine learning methods. Such futuristic, intelligent networks form the backbone of the next generation of Internet. These self-learning and self-healing networks are termed as the Zero-Touch networks. This paper proposes FedFog, a Federated Learning based optimal, automated Resource Management framework in Fog Computing for Zero-touch Networks. The paper describes a series of experiments focusing on Quality of Service parameters such as Network latency, Resources processed, Energy consumption and Network usage. The simulation results from these experiments depict superiority of the proposed architecture over traditional, existing architecture.
Artificial intelligence (AI) empowered anomaly detection for autonomous vehicles in 6G-V2X
Authors: Kandhro Irfan Ali , Ali Fayyaz , Panhwar Ali Orangzeb , Ahmed Larik Raja Sohail , Fatima Kanwal
Published: July 2023

The development of advanced Intelligent Transportation Systems has been made possible by the rapid expansion of autonomous vehicles (AVs) and networking technology (ITS). The in-vehicle users' increased data needs from AVs put the vehicle's trajectory data in danger and make it more susceptible to security threats. In this paper, Autonomous vehicles (AVs) transform the intelligent transportation system by exchanging real-time and seamless data with other AVs and the network (ITS). Transportation that is automated has many advantages for people. However, worries about safety, security, and privacy continue to grow. The AVs need to exchange sensory data with other AVs and with their own for navigation and trajectory planning. When an unreliable sensor-equipped AV or one that is malicious enters connectivity in such circumstances, the results could be disruptive. To effectively detect anomalies and mitigate cyberattacks in AVs, this study suggests the Efficient Anomaly Detection (EAD) method. The EAD technique finds and isolates rogue AVs using the Multi-Agent Reinforcement Learning (MARL) algorithm, which operates over the 6G network to thwart modern cyberattacks and provide a quick and accurate anomaly detection mechanism. The expected outcomes demonstrate the value of EAD and have an accuracy rate that is 8.01% greater than that of the current systems.
Simulation and analysis of ideal low pass filter response using MATLAB
Authors: Shaikh Muhammad Zakir , Mal Khakoo , Kumar Dillep , Ali Ehsan , Chowdhry Bhawani Shankar , Baro Enrique Nava
Published: July 2023

Filters are the crucial element of many modern electronic systems used in control engineering, wireless communication systems, and embedded systems designs. Filters in one form or another, are considered an important subsystem in developing communication systems. The ideal filter cannot be designed through any electronic circuit and the only way is to realize using simulations tools like MATLAB. In this paper, the simulation and analysis of the ideal low pass filter is presented. The MATLAB software is used to generate and perform analysis of the step response of ideal low-pass filter (Si function) and impulse response of ideal low-pass filter (Sinc function) in time and frequency domains. The aim of the work is to provide engineering students an easier understanding of the filter design process in an appropriate way with the help of simple programming. Where, it is easy to generate signals and analyze the ideal low pass filter response. To verify achievement of learning objectives, a survey is conducted from 45 engineering students of electronic and telecommunication which elicited students’ observations and interest in the learning process. Overall about 75% of students gave positive feedback, which indicates that such type of experimentation had a significant impact on the student academic outcomes.
Deep learning-based fault detection in railway wheelsets using time series analysis
Authors: Shaikh Khurram , Hussain Imtiaz , Chowdhry Bhawani Shankar
Published: July 2023

Maintenance of Railway rolling stock is usually scheduled based. However, the mechanical parts, especially the wheelset may wear down prematurely due to several factors such as excessive braking and traction forces and environmental conditions. This makes the scheduled maintenance less effective and sometimes it results in derailments. This paper presents a deep learning-based technique to detect wheel conditions so that maintenance can be performed promptly and efficiently. A time series dataset of axle vibrations is generated using a simulation model of the wheelset. The dataset is then used to train and test the deep learning model. Long short-term memory (LSTM) architecture is selected for this application since it is designed to perform better for time series datasets. The results show good performance in terms of training and testing accuracy. The model is tested in different defect scenarios and the mean square error in the prediction of railway wheelset parameters is around 15%.
Vibration measurement in the degradation study of building construction materials
Authors: Żółtowski Mariusz
Published: July 2023

Brick objects are subject to large dynamic loads clearly reflected by generated vibration processes. The vibrations may affect the state of serviceability of structures by lowering the comfort of persons working there, as well as possibly reaching a level hazardous to the safety of the structures. The effect of vibrations on the structure is mainly manifested by additional stresses in a given cross-section, which are summed up with those resulting from static loads. The dynamic loads may cause damaging effects in buildings of various structural types or even lead to their destruction. The article describes a series of original analyses of the process of destruction of selected masonry objects using the experimental modal analysis. The research was conducted to improve the quality assessment of building structures in terms of the technical condition of masonry structures and meeting safety standards.
ASSESSMENT OF SELECTED LANDFILL IMPACTS ON SELECTED SEGMENTS OF THE ENVIRONMENT – A CASE STUDY
Authors: Vaverková Magdalena Daria
Published: July 2023

Landfilling is the oldest method of waste management. A number of biological, chemical, and physical reactions occur at the landfills, which cause a threat to the environment. For this reason, landfill monitoring is necessary, and biomonitoring is increasingly beginning to be used. The aim of this study is to (i) determine some effects of the landfill on the surrounding environment, (ii) analysis of plant bioindicators and (iii) biomonitoring based on the occurrence of plant species producing allergenic pollen. Furthermore, plants producing fruits and seeds were also analysed. During biomonitoring, no serious effects of the landfill on the surrounding environment were detected. The plant species found were evaluated based on the frequency of occurrence, pollination vector, distribution of fruits and seeds, and intensity of allergen effects. Thanks to the occurrence of plant allergens, there is a potential risk of the spread of allergens to the landfill surroundings. Furthermore, some species of non-native and invasive plants were found on the active part of the landfill. These species spread their seeds and fruits, and they pose a potential risk to the ecosystems.
Structure and optical properties of La-doped ZnO thin films at room temperature
Authors: Sugihartono Iwan , Soegijono Bambang , Handoko Erfan , Tiam Tan , Umar Akrajas
Published: July 2023

La-doped ZnO (with 0, 1, 5 and 7 wt.% La) thin films were deposited on Si
substrates by ultrasonic spray pyrolysis, using frequency of 1.7MHz, and
heated at 450?C for 15min. The effect of La addition on the structural and
optical properties of ZnO thin films was analysed. X-ray diffraction
patterns confirmed that all prepared thin films had a polycrystalline
hexagonal wurtzite structure with highly preferred texture in the (002)
plane in the case of the ZnO containing 7 wt.% La. Atomic force microscopy
analyses confirmed that the surface morphology is affected by La addition
and the root mean square (RMS) roughness tended to be higher by increasing
La content. The optical band gap energies of the La-doped thin films are
smaller than that of the undoped ZnO. The photoluminescence properties of
the prepared thin films confirmed that there was a significant redshift of
DLE to wavelength of 711 nm when 1wt.% of La was incorporated in ZnO
structure. It was proposed that the incorporation of La into the ZnO
structure caused the oxygen atoms to have a strong bond with La.
Influence of polymer synthesis route and organic fraction content on structure and porosity of silicon oxycarbide ceramics
Authors: Costa Beatriz , de Silva Maria , Tarley César Ricardo , Ribeiro Emerson , Segatelli Mariana
Published: July 2023

This paper describes the structural and textural characteristics of silicon
oxycarbide ceramics obtained from three different hybrid polymers by varying
pyrolysis temperature. The first polymer was prepared by hydrosilylation
between poly(hydromethylsiloxane) and divinylbenzene in stoichiometric
proportions; the second was similarly obtained, but with excess of
divinylbenzene (60 wt.%) and the third was also synthesized with 60 wt.%
divinylbenzene, involving simultaneously hydrosilylation and radical
reactions. Precursors were pyrolysed under argon at 1000, 1200 and 1500?C
to produce silicon oxycarbide-based ceramics. Silicon carbide phase
development and devitrification resistance were influenced by the disordered
and ordered residual carbon fraction, which was directly related to the
polymer structure. High specific surface area and pore volume values were
obtained in C-richer ceramics at 1500?C derived from poly(divinylbenzene)
network-containing precursor. Silicon oxycarbide matrices, derived from
hybrid polymers containing graphitic carbon and silicon carbide phases
together with different amount of porosity, revealed desirable features for
electrochemical applications and adsorbent systems.
Consolidation of alumina toughened zirconia by two-step sintering
Authors: Dang Khanh , Nguyen Yen , Vu Hoang
Published: July 2023

Sol-gel-synthesized ZrO2-based nanoparticles, containing 1.5mol% Y2O3 used as
dopant and 25mol% Al2O3 (abbreviated as ZrO2(1.5Y)-25Al2O3), were densified
by pulsed electric current sintering (PECS) accompanied with a two-step
heating profile. Particularly, sintering was carried out in the temperature
range from 1050 to 1200?C for 10min, followed by dwell at 1325?C for
10min. The ZrO2-based ceramics achieved by the two-step sintering was fully
dense, containing 98 vol.% of tetragonal ZrO2 phase. Morphology of the
sintered samples showed the submicron grains with uniform size distribution.
Although the second-step sintering temperature was fixed at 1325?C, the
mean grain size was increased along with the increase in the first-step
sintering temperature. In addition, the material characterization of the
samples after the first-step heating was tested to investigate the influence
of the first-step sintering on the consolidation of ceramics achieved via
the two-step sintering.
Electrical conductivity and electrical stability of Bi/Mg modified NiO ceramics for NTC thermistors
Authors: Huang Linling , Li Zhicheng , Li Kaifeng , Zhang You , Zhang Hong , Leng Senlin
Published: July 2023

Thermistors with negative temperature coefficient (NTC) of resistivity are
important components for temperature sensors and actuators. High material
constant (B value) of NTC thermistor, i.e. high-temperature sensitivity, is
one of key focuses. Herein, Bi/Mg modified NiO based ceramics for NTC
thermistors were prepared by conventional solid-state reaction method.
Introduction of Bi2O3 significantly enhances the sintering ability of
ceramics and reduces the sintering temperature from 1380 to 1250?C.
Mg-doping (i.e. preparation of Ni1-xMgxO ceramics, where x=0, 0.02, 0.05,
0.07 and 0.1) has significant effect on room temperature resistivity (?25).
Phase composition, microstructure, electrical property and electrical
stability were investigated. All prepared ceramics have the phase with
rock-salt structure and show typical NTC characteristics with B values
higher than 5300K. The electrical stability with an optimized
resistance-change rate of 1.02%after being aged at 150?C for 500 h is
achieved. The electrical properties of the ceramics were analysed by
combining X-ray photoelectron spectra with complex impedance spectra.
KEDUDUKAN HUKUM PERJANJIAN DI DALAM PENDIRIAN PERSEROAN TERBATAS BERBENTUK BADAN USAHA MIKRO DAN KECIL BERDASARKAN UNDANG-UNDANG CIPTA KERJA
Authors:   Fakultas Hukum Universitas Pembangunan Nasional Vetaran Jakarta, Wahyuni Ridha , Sari Dalimunthe Siti Nurul Intan ,   Fakultas Hukum Universitas Pembangunan Nasional Vetaran Jakarta
Published: July 2023

Lahirnya Undang-Undang Cipta Kerja telah merubah konstruksi hukum di Indonesia, salah satunya terhadap ketentuan mengenai pendirian Perseroan Terbatas khususunya berbentuk Usaha Kecil dan Mikro yang dapat didirikan oleh satu orang. Kebijakan ini tentu mendobrak prinsip-prinsip umum Pendirian perseroan terbatas yang seharusnya didasarkan pada kesepakatan (perjanjian). Penelitian ini mefokuskan pada masalah bagaimana Kedudukan Badan Usaha Mikro dan kecil yang berbentuk badan usaha Perseroan Terbatas yang hanya didirikan oleh 1 (satu) orang ditinjau dari aspek Hukum Perjanjian sebagai syarat utama bagi pendirian Badan Hukum Peseroan Terbatas dikaitkan dengan ketentuan Pasal 109 ayat (1) UU Cipta Kerja, dengan metode penelitian Yuridis-normatif yang bersifat deskriptif analisis. Hasil penelitian menunjukkan bahwa pendirian Perseroan terbatas berbadan hukum yang berbentuk usaha mikro/kecil tidak harus dengan akta Pendirian dan tidak harus bersifat kontraktual karena bisa didirikan oleh satu orang saja. Pendirian perseroan badan usaha kecil dan mikro cukup dibuat dengan surat pernyataan kemudian didarftarkan untuk mendapatkan pengesahan sebagai badan hukum. Berdasarkan hasil pembahasan ditarik simpulan bahwa peraturan UU Cipta Kerja tentang Pendirian Perseroan Terbatas khususnya terhadap badan usaha perseroan mikro dan kecil tidak sesuai dengan prinsip-prinsip umum pendirian Perseroan Terbatas berbadan hukum yang mensyaratkan harus didirikan lebih dari satu orang berdasarkan perjanjian.
¡Más allá de los números! La exploración fenomenológica de la geometría y el espacio
Authors: Morales Luis Alberto Canela
Published: July 2023

La propuesta fenomenológica de Husserl, aunque se inició con un estudio sobre la naturaleza del número y las funciones matemáticas, abarca mucho más que eso. Se conocen una serie de ensayos editados póstumamente en el tomo XXI de la serie Hussserliana que abarcan los años 1890-1908, y que se enfocan en comprender los avances de la geometría (euclidiana y no euclidiana) y el papel que desempeña en la constitución del espacio físico. Los estudios sobre geometría euclidiana y no euclidiana continuarían así la investigación de Filosofía de la aritmética, ya que ambos comparten los Grundgedanken, es decir, el conjunto de herramientas y temas relacionados con la noción de representación simbólica. El objetivo de este artículo es presentar de manera general los principales problemas a los que Husserl se enfrenta en relación con temas geométricos y espaciales. Se intentará reconstruir, de manera histórico-crítica, aspectos esenciales sobre los temas y problemas de la filosofía de la geometría tal y como Husserl la desarrolla en sus primeras obras fenomenológicas.
Co-processing of Lignite with Corn Residues for Energy or Syngas Production Thermochemical Behavior and Kinetic Modeling
Authors: Vamvuka Despina , Loulashi Christia , Xylouris Loukas , Sfakiotakis Stelios
Published: July 2023

The combustion and carbon dioxide gasification behavior of lignite/corn cobs mixtures through thermal analysis experiments was investigated. A simple and accurate model was developed to provide and compare the kinetics of these processes. The characteristic parameters of combustion and gasification, such as decomposition temperature, reaction rate and reactivity, were correlated to the pore structure of the fuels, the composition of ash and mutual interactions between blend components. Combustion of fuels studied occurred in two distinct stages. The reactivity of corn cobs was much higher. When this material was blended with the lignite it improved its combustion efficiency and the mixture presented an additive behavior. The gasification process of chars took place between 750 °C and 950 °C. Corn cobs char exhibited a higher rate. The percentage of this material in the blend was quite low to influence the reactivity of the lignite. The independent parallel reactions model fitted the experimental results with a good accuracy. Activation energy values of combustion varied between 65 kJ/mol and 261 kJ/mol, while those of gasification were enhanced 136-395 kJ/mol, due to the higher thermal stability of chars. The similar thermochemical behavior of the fuels could be advantageous for their co-processing in existing lignite plants, offering economic and environmental benefits.
An Optimal Fuzzy Logic Sliding Mode Voltage Regulation DC-grid System for Hybrid Electric Ships with FC-Battery Energy Storage System
Authors: Elgammal Adel , Tagore Ramlal
Published: July 2023

This work proposes a fuzzy logic sliding mode control based on MOPSO optimization to increase voltage stability, particularly during load variations, while also combining FC-battery storage systems. The controller makes advantage of the converters' existing capabilities to reduce voltage fluctuations and improve system efficiency in a number of ship operating modes, including transient loads, without the need for additional equipment like as DC choppers or passive/active filters. By minimising voltage variation under load fluctuations and other influencing variables, the MOPSO develops control orders to manage load distribution among the FC and DG battery storage systems. The suggested control approach is compared to traditional sliding mode and PI controllers in terms of performance. According to the findings, the novel approach can improve battery power smoothing, steady state voltage management, and stable and speedy control performance.
Congenital Insensitivity TO Pain: A Case Report
Authors: Hamdani Hind , Mtalai Naoual , Ennaki Sara , Daghouj Ghizlane , Loubna El Maaloum  , Allali Bouchra , El Kettani Asmaa
Published: July 2023

Congenital insensitivity to pain or more scientifically Hereditary sensory and autonomic neuropathies (HSAN) is a rare genetic disorder which associates a sensory dysfunction with a varying degree of autonomic dysfunction. Due to the peripheral neuropathy, a decreased sensitivity or even complete anesthesia may be present resulting in, on the ophthalmological level, neurotrophic ulcers. We report the case of 2 sisters (JM and KM) presenting with HSAN with recurrent corneal ulcers. Unfortunately, genetic testing couldn’t be performed due to lack of means, but the clinical presentation and features were very favourable or even pathognomonic of this syndrome. The first cases or reported individuals presenting with congenital insensitivity to pain goes back to 1930’s. Five types of hereditary sensory and autonomic neuropathy have been identified according to age of onset of symptoms, clinical features and affected gene. HSAN type IV also known as congenital insensitivity to pain with anhidrosis (CIPA) is the second most common HSAN. It is caused by mutation in the NTRK1(Neurotrophic tyrosine kinase receptor type 1) (TRKA) gene located in chromosome 1 (1q21-q22). It is characterized by repetitive hyperthermic episodes in infancy, and mental retardation is usually present, as reported in our case. Clinical symptoms of pain insensitivity manifest as tongue, lip and fingers biting, and self-inflicted injuries. Congenital insensitivity to pain is a rare genetic syndrome characterized by an absence or an altered response to pain. Individuals with this syndrome can presented self-inflicted injuries and auto-mutilation leading in some cases to severe disabilities. Long-term visual prognosis in CIPA patients is not assessed and there’s an important lack of data regarding ocular manifestation of CIP syndrome.
Demographic Factors Influencing Music Teachers’ Attitudes Toward World Music Teaching in China
Authors: Zhuang Chun Mei , Pan Kok Chang
Published: July 2023

This study aims to identify the demographic factors affecting Chinese music teachers’ attitudes toward world music teaching in China. Through electronic questionnaires issued online, a total of 1,368 participants completed A Survey of Music Teachers’ Attitudes Toward World Music Teaching, which includes demographic information and twenty Likert-type items. The results showed that two independent variables of “gender” and “whether teachers had received training in world music after entry” did not influence Chinese music teachers’ attitudes and practices in world music teaching. Furthermore, it could be speculated that the teachers, especially those who were 20-34 years old with a master’s degree/Ph.D. and 1-10 years of teaching experience, as well as good at Western instruments, studied world music courses, graduated from a comprehensive university, and with teaching places located in the provincial capital cities, leaned more toward ethnomusicological and multicultural consciousness in world music teaching.
The Study on Determinants of Disability Employment in Local Public Enterprises
Authors:   The Korean Association for Local Public Enterprises, Ko Jaekwon
Published: July 2023

The purpose of this study is to explore the factors that affect the employment of people with disabilities in local public enterprises as a public institution. In order to promote the employment of the disabled, the government has made many efforts at the government level, such as establishing plans to promote the employment of the disabled in public institutions. Since many previous studies on hiring of people with disabilities have been conducted centering on private companies, this study aims to analyze the hiring of people with disabilities, focusing on local public companies, which are public institutions. Location and industry types as organizational characteristics as influencing factors, ethical management and consideration for the socially underprivileged as recognition factors for employment of the disabled, and management performance as economic factors were set to verify the impact on the mandatory employment of the disabled in local public enterprises. As influencing factors, it was found that the location of the institution, ethical management, and management performance had a positive effect on the mandatory employment of the disabled in local public enterprises. Based on these results, we would like to present policy implications for promoting the employment of the disabled in local public enterprises.
Kepuasan Pengunjung Pada Fasilitas Wisata di Daya Tarik Wisata Safari Lagoi Bintan Kepulauan Riau
Authors: Kartini Mita Aprilia , Abrian Youmil , Wulansari Nidia
Published: July 2023

This research was purposed to describe level of visitor satisfaction at the Safari Lagoi Bintan from indicators: suitability of expectations, revisit intention, and willingness to recommend. The type of this research is descriptive with quantitative data using survey methods. The research was conducted at the Safari Lagoi Bintan, Riau Islands. The population in this research was 9,297 visitors who visited Safari Lagoi Bintan from November 2021-April 2022. The results of this study indicate that: 1) The level of satisfaction about facilities on the suitability of expectations indicators is categorized as satisfied for domestic and foreign visitors, with a score of 4.13 and 4.08; 2) the level of satisfaction on revisit intention indicator is categorized as satisfied for domestic and foreign visitors with a score of 4.15 and 3.96; 3) the level of satisfaction on willingness to recommend indicator is at very satisfied category for domestic visitors, with a score 4.23 and satisfied for foreign visitors with a score of 4.16.
Partisipasi Pemuda Dalam Pengembangan Desa Wisata Alam di Desa Sendangharjo Lamongan
Authors: Mubarok Husni
Published: July 2023

Sendangharjo Village is one of the Area under the auspices of Perum Perhutani KPH Tuban which is also threatened with illegal logging. Development of community-based tourism or Community Based Tourism (CBT) is one of the efforts to preserve the nature and culture of rural communities. Through this activity, economic growth from various community-based economic sectors can also be developed, such as service providers, handicraft sellers, traders and others. The purpose of this study is to find out, describe, and analyze youth applications in the development of the Akar Langit Trinil Natural Tourism Village in Sendangharjo. The method used in this study uses a qualitative descriptive approach with observation, interviews and documentation techniques. The results of this study indicate that with the cooperation of various parties, namely Perhutani KPH Tuban and the local Karang Taruna Youth as well as community participation, the development of the Akar Langit Nature Tourism Village has accelerated. All the people are directly involved in all the activities that are there. Follow-up that needs to be done is to market tourist attractions both through print and electronic media and provide guidance on the development of natural tourism for managers, namely village youth who are there.
Исследование структуры рецептивного поля в визуальном методе решения задачи линейного программирования
Authors: Ольховский Николай
Published: July 2023

В статье описан метод определения проекции произвольного вектора на гиперплоскость в многомерном пространстве путем взаимодействия суперкомпьютера и искусственной нейронной сети. Суперкомпьютер строит визуальное представление гиперплоскости в окрестности некоторой точки. Визуальный образ обрабатывается нейронной сетью прямого распространения. В качестве ответа нейронная сеть возвращает направление проекции заданного вектора на гиперплоскость. В статье описано построение обучающего множества, проектирование, оптимизация и обучение нейронной сети. Представлены результаты вычислительных экспериментов с различными конфигурациями нейронных сетей.
Relationships between road transport indicators and expenditure of visitors in the context of European countries' tourism competitiveness
Authors: Gavurova Beata , Rigelsky Martin , Mikeska Martin
Published: July 2023

Research background: Transport represents a dynamic element in the tourism system. In recent decades, transport has been a subject of research mainly from the point of view of the sustainability of the economic systems and the environmental aspects.
Purpose of the article: This study aimed to quantify the relationships between the selected indicators of road transport development and the expenditure of tourism visitors in the selected European countries in the context of the development of their competitiveness.
Methods: The road transport indicators were applied in the research trajectories: density of road (DNST), hare of road infrastructure investment (SH INF), share of motorways (SH MWY), and indicators of visitor expenditure for business (BTS), leisure (LTS), domestic (DTS) and foreign (VEFS) tourism. In the first phase of the analyses, the countries of the European part of the OECD (N = 27; period of 2010-2018) were divided into two clusters based on the development index (HDI) and the innovation index (GII) through the cluster analysis. The two groups were created - more and less developed countries. The results of the analysis of differences declare that there are differences between these groups in the DNST, SH INF, BTS, LTS, and DTS indicators. The correlation and regression analysis methods were applied to quantify the relationships between the variables.
Findings & value added: The difference between the groups of the countries was also shown in the relationships between the road transport development indicators and visitor spending. In more developed countries, the relationship between the traffic indicators on BTS and DTS was significant. In less developed countries, significant relationships were identified with LST and VEFS. This finding underscores regional disparities and cautions against assuming that what policy guidelines from developed countries will be effective in less developed ones. Therefore, when designing improvement policies, it is vital to consider countries in terms of their level of development.
Google and Apple mobility data as predictors for European tourism during the COVID-19 pandemic: A neural network approach
Authors: Nagy Benedek , Gabor Manuela Rozalia , Bacoș Ioan Bogdan , Kabil Moaaz , Zhu Kai , Dávid Lóránt Dénes
Published: July 2023

Research background: The COVID-19 pandemic has caused unprecedented disruptions to the global tourism industry, resulting in significant impacts on both human and economic activities. Travel restrictions, border closures, and quarantine measures have led to a sharp decline in tourism demand, causing businesses to shut down, jobs to be lost, and economies to suffer.
Purpose of the article: This study aims to examine the correlation and causal relationship between real-time mobility data and statistical data on tourism, specifically tourism overnights, across eleven European countries during the first 14 months of the pandemic. We analyzed the short longitudinal connections between two dimensions of tourism and related activities.
Methods: Our method is to use Google and Apple's observational data to link with tourism statistical data, enabling the development of early predictive models and econometric models for tourism overnights (or other tourism indices). This approach leverages the more timely and more reliable mobility data from Google and Apple, which is published with less delay than tourism statistical data.
Findings & value added: Our findings indicate statistically significant correlations between specific mobility dimensions, such as recreation and retail, parks, and tourism statistical data, but poor or insignificant relations with workplace and transit dimensions. We have identified that leisure and recreation have a much stronger influence on tourism than the domestic and routine-named dimensions. Additionally, our neural network analysis revealed that Google Mobility Parks and Google Mobility Retail & Recreation are the best predictors for tourism, while Apple Driving and Apple Walking also show significant correlations with tourism data. The main added value of our research is that it combines observational data with statistical data, demonstrates that Google and Apple location data can be used to model tourism phenomena, and identifies specific methods to determine the extent, direction, and intensity of the relationship between mobility and tourism flows.
Asynchronous Instantaneity. The Posthuman Turn in the Romanian Literary System
Authors:   Babes-Bolyai University, Lupașcu-Doboș Emanuel
Published: July 2023

Cultural globalisation, made possible by the enhancement of digital infrastructure, has led some scholars to reconsider the dynamics of core-periphery transfers, stressing the immediacy with which popular culture crosses national and linguistic borders. T
AN ICON’S JOURNEY FROM KYIV TO THE PACIFIC: RUSSIAN COLONIAL WARS AND ORTHODOX PIETY IN THE EARLY 20TH CENTURY
Authors: PAULAU Stanislau
Published: July 2023

The article highlights the importance of material objects and practices of mobility for understanding the complex relationships between Christianity and war. It thus explores the potential of material-oriented research for studying the sacralization of military violence, focusing on Russian Orthodox contextual theology of war and using the Russo-Japanese War (1904–5) as a case study. Special attention is given to the icon known as “the Mother of God of Port Arthur”, which is analyzed as an embodiment, a material manifestation, of the Russian Orthodox theology of war. The text is divided into four sections, (1) introducing the concept of Orthodox contextual theologies of war, (2) outlining the Russian colonial expansion project to the Pacific, (3) examining key features of Russian Orthodox theology of war in connection to the supposedly “miraculous appearance” and the mobility of the “Icon of the Mother of God of Port Arthur”, and (4) summarizing the findings and their relevance for understanding recent developments in Russian Orthodoxy.
A hazai személyszállítási közszolgáltatáshoz kapcsolódó kedvezményrendszer modernizációs lehetőségei
Authors: Szeri István , Dancz Ákos Gyula
Published: July 2023

Cél a személyszállítási közszolgáltatások keretében megvalósuló utazásokhoz kapcsolódó kedvezményrendszer felülvizsgálata. Ennek keretében áttekintik a hatályos kedvezményrendszert, ezen belül is a kedvezménykulcsokat és a kedvezményeket biztosító jogcímeket. A cikk szerzői törekednek annak feltárása, hogy milyen módosítások válhatnak szükségessé a hatályos kedvezményrendszerben ahhoz, hogy az hatékonyabban működjön. Megfontolandók azok a javaslatok, amelyek arra fókuszálnak, hogy valóban a rászorult társadalmi rétegek részesüljenek a kedvezményekben.
A new species of Agistemus Summers (Acari: Stigmaeidae), and key to all known species from Peru
Authors: Escobar-Garcia Hector Alonso , De Andrade Daniel Júnior , Matioli André Luis , Rojas-Espinoza Francisco Jose , Ueckermann Edward A.
Published: July 2023

A new species of the family Stigmaeidae, the genus Agistemus group terminalis, namely: A. peruvianus n. sp., inhabiting foliage of a native forest tree called algarrobo, Neltuma piurensis (Fabaceae), from Piura, north-western Peru, is described and illustrated based on females, males, and deutonymphs. The mites were found during spring, summer, and autumn, but more frequently observed autumn (March to June). A key to the Peru species of the genus Agistemus is provided.
Gradient Inequalities for an Integral Transform of Positive Operators in Hilbert Spaces
Authors: Dragomir Silvestru Sever
Published: July 2023

For a continuous and positive function w (λ) , λ > 0 and µ a positive measure on (0, ∞) we consider the following integral transform

𝒟

(

w
,
μ

)

(
T
)

:
=

∫
0
∞

w

(
λ
)

(

λ
+
T

)

-
1

d
μ

(
λ
)

,

\mathcal{D}\left( {w,\mu } \right)\left( T \right): = \int_0^\infty {w\left( \lambda \right){{\left( {\lambda + T} \right)}^{ - 1}}d\mu \left( \lambda \right),}

where the integral is assumed to exist for T a positive operator on a complex Hilbert space H.

Assume that A ≥ α > 0, δ ≥ B > 0 and 0 < m ≤ B − A ≤ M for some constants α, δ, m, M. Then

0
≤
-
m

𝒟
′

(

w
,
μ

)

(
δ
)

≤
𝒟

(

w
,
μ

)

(
A
)

-
𝒟

(

w
,
μ

)

(
B
)

≤
-
M

𝒟
′

(

w
,
μ

)

(
α
)

,

0 \le - m\mathcal{D}'\left( {w,\mu } \right)\left( \delta \right) \le \mathcal{D}\left( {w,\mu } \right)\left( A \right) - \mathcal{D}\left( {w,\mu } \right)\left( B \right) \le - M\mathcal{D}'\left( {w,\mu } \right)\left( \alpha \right),

where D
′(w, µ) (t) is the derivative of D(w, µ) (t) as a function of t > 0.

If f : [0, ∞) → ℝ is operator monotone on [0, ∞) with f (0) = 0, then

0
≤

m

δ

2

[

f

(
δ
)

-

f
′

(
δ
)

δ
≤
f

(
A
)

A

-
1

-
f

(
B
)

B
-
1

]

≤

M

α

2

[

f

(
α
)

-

f
′

(
α
)

α

]

.

\matrix{ {0 \le {m \over {{\delta ^2}}}\left[ {f\left( \delta \right) - f'\left( \delta \right)\delta \le f\left( A \right){A^{ - 1}} - f{{\left( B \right)}^{B - 1}}} \right]} \cr { \le {M \over {{\alpha ^2}}}\left[ {f\left( \alpha \right) - f'\left( \alpha \right)\alpha } \right].} \cr }

Some examples for operator convex functions as well as for integral transforms D (·, ·) related to the exponential and logarithmic functions are also provided.
A Fourier Analysis Based New Look at Integration
Authors: Imkeller Peter , Perkowski Nicolas
Published: July 2023

We approach the problem of integration for rough integrands and integrators, typically representing trajectories of stochastic processes possessing only some Hölder regularity of possibly low order, in the framework of para-control calculus. For this purpose, we first decompose integrand and integrator into Paley–Littlewood packages along the Haar–Schauder system. By careful estimation of the components of products of packages of the integrand and derivatives of the integrator we obtain a characterization of Young’s integral. For the most interesting case of functions with Hölder regularities that sum up to an order below 1 we have to employ the concept of para-control of integrand and integrator with respect to a reference function for which a version of antisymmetric Lévy area is known to exist. This way we obtain an interpretation of the rough path integral. Lévy areas being known for most frequently used stochastic processes such as (fractional) Brownian motion, this integral serves as a basis for pathwise stochastic calculus, as the integral in classical rough path analysis.
The effect of dietary L-carnitine and fat on performance, carcass traits and blood components in broiler chickens
Authors: Akhoondzadeh Hamid , Bouyeh Mehrdad , Paz Erwin , Seidavi Alireza , Vlčková Radoslava
Published: July 2023

The poultry industry has traditionally been selecting animals for improved performance without consideration for the effect on fat deposition. Dietary L-carnitine can alter lipid metabolism; nevertheless, when combined with fat, the effects are not clear. This study shows the effect of different dietary levels of L-carnitine (0, 200 and 400 mg/kg) and fat (0, 2.5 and 5%) on growth performance and slaughter traits of commercial broilers (Ross 308; n=270). The groups received the following dietary treatments: 1) 0 mg/kg L-carnitine + 0% fat, 2) 200 mg/kg L-carnitine + 0% fat, 3) 400 mg/kg L-carnitine + 0% fat, 4) 0 mg/kg L-carnitine + 2.5% fat, 5) 200 mg/kg L-carnitine + 2.5% fat, 6) 400 mg/kg L-carnitine + 2.5% fat, 7) 0 mg/kg L-carnitine + 5.0% fat, 8) 200 mg/kg L-carnitine + 5.0% fat, and 9) 400 mg/kg L-carnitine + 5.0% fat. Feed conversion ratio, growth performance, blood biochemical parameters, carcass traits and body composition were measured and analyzed. Levels of fat with L-carnitine had significant effects on the European Performance Efficiency Factor, wings weight, intestine length and weight, spleen and liver weight, full abdomen carcass and abdominal fat weight, as well as serum triglyceride levels. Dietary L-carnitine supplementation improved growth performance of broilers, thus it may be a promising solution to reduce fat storage in broilers and improve the quality of carcasses intended for human consumption.
Comparing the diagnostic efficacy of [18F]FDG PET/CT and [18F]FDG PET/MRI for detecting bone metastases in breast cancer: a meta-analysis
Authors: Xia Longjie , Lai Jianqin , Huang Di , Qiu Shenghui , Hu Huiqiong , Luo Yunxiang , Cao Jie
Published: July 2023

Background

This meta-analysis aimed to evaluate the comparative diagnostic efficacy of [18F]FDG PET/CT and [18F] FDG PET/MRI in detecting bone metastases in breast cancer patients.

Methods

An extensive search was conducted in the PubMed, Embase, Web of Science, and Cochrane Library databases to identify available publications up to February 2023. Studies were included if they evaluated the diagnostic efficacy of [18F]FDG PET/CT and [18F]FDG PET/MRI in patients with breast cancer bone metastases. Sensitivity and specificity were assessed using the DerSimonian and Laird method, followed by transformation via the Freeman-Tukey double inverse sine transformation.

Results

16 articles (including 4 head-to-head comparison articles) involving 1,261 patients were included in the meta-analysis. The overall sensitivity of [18F]FDG PET/CT in patient-based analysis, lesion-based analysis, and head-to-head comparison were 0.73, 0.89, and 0.87, respectively, while the overall sensitivity of [18F]FDG PET/MRI were 0.99, 0.99, and 0.99. The results indicated that [18F]FDG PET/MRI appears to a higher sensitivity in comparison to [18F]FDG PET/CT(all P < 0.05). In contrast, the overall specificity of [18F]FDG PET/CT in patient-based analysis, lesion-based analysis, and head-to-head comparison were 1.00, 0.99, and 1.00, respectively, while the overall specificity of [18F]FDG PET/MRI were 1.00, 0.99, and 0.98. These results suggested that [18F]FDG PET/CT has a similar level of specificity compared to [18F]FDG PET/MRI.

Conclusions

Our meta-analysis indicates that [18F]FDG PET/MRI demonstrates superior sensitivity and similar specificity to [18F]FDG PET/CT in detecting bone metastases in breast cancer patients. Further prospective research is required to confirm these findings and assess the clinical application of these techniques.
Olfactory neuroblastoma: Up-to-date review and our experience
Authors: Rusu Bianca , Lupoi Daniel , Dragomir Mihai , Badea Carmen
Published: July 2023

Olfactory neuroblastoma (ONB), also known as esthesioneuroblastoma, is a rare malignant neuroectodermal tumor originating primarily from the basal layer of the olfactory epithelium in the roof of the nasal cavity. The most common symptoms are nasal obstruction, anosmia, recurrent epistaxis, rhinorrhea and excessive lacrimation. Imaging studies are helpful for assessing the extent of olfactory neuroblastoma, as well as grading the tumor. The definitive diagnosis is based on histopathological exam and immunohistochemistry profile and it might be quite challenging because the tumor can mimic other sinonasal malignancies. Because of the small number of reported cases and the lack of prospective research, the optimal treatment for olfactory neuroblastoma is still controversial. However, it is generally believed that surgical resection followed by radiotherapy gives the best outcome in terms of recurrence and survival rates. Keeping in mind the rarity of olfactory neuroblastoma and the diagnostic difficulty, the aim of this study is to improve the understanding of the clinical features by reviewing the literature focusing on the recent advances in the diagnosis and treatment of ONB. Moreover, we are reporting an atypical case of an aggressive type of olfactory neuroblastoma treated through a multimodal approach, with no signs of tumor recurrence after a 3-month follow-up.
Selective Laser Trabeculoplasty-What Do We Know So Far? Review
Authors: Zečevic Rada , Sreckovic Sunčica , Ristic Dragana , Djuric Anđelka , Kontic Marko
Published: July 2023

Selective laser trabeculoplasty (SLT) has been used for lowering intraocular pressure (IOP) in patients with different types of glaucoma. It is a safe and effective procedure as initial or additional therapy when target IOP could not be achieved with medical therapy. SLT could specifically target pigmented cells in trabecular meshwork (TM) leaving nonpigmented cells unaffected, which may allow repeat treatments and thus has lower complication rate. It can be successfully used for IOP reduction in primary open angle glaucoma (POAG), normotensive glaucoma (NTG), pigmentary glaucoma (PG), pseudoexfoliation glaucoma (PXFG), primary angle closure glaucoma (PACG), silicone-oil-induced glaucoma, and high IOP after failed trabeculectomy. SLT could also be used in all stages of open agle glaucoma but failure of SLT in advanced glaucoma patients should go to immediate filtering surgery to avoid postoperative fibrosis. SLT reduces IOP fluctuation. IOP-lowering effect of SLT diminishes over time, but it can be repeated in order to achieve additional or recurrent IOP reduction. Higher baseline IOP up to a certain level is the strongest predictor of success after SLT.
Preparing Counselors for Potential Violence in the Workplace: Interview With Julie S. Costopoulos, PhD
Authors: Cannon Bradley
Published: July 2023

Did you know that 30 to 40% of psychologists in private practice have experienced an assault by a patient in their care? Even more alarming, more than 50% of counselors in substance-use-disorder programs have or will personally experience some form of violence in the workplace. Dr. Julie Costopoulos guest stars to unpack this situation and provide vital safety information that all current and aspiring psychologists must hear.