bluuebunny/crossref_metadata_2025 huggingface dataset:
Detection of Sub-surface Delamination and Moisture Penetration in Unlined Rock Tunnels Using Passive Thermography and Tapping
Authors:   Chonnam National University, Huh Jungwon
Published: January 2024

An unlined rock-blast tunnel constructed by the drill and blast method is susceptible to frequent deterioration, including sagging beds, water ingress and loose rock masses. Thus, assessing potential damages above the roadway that may impact the safety of tunnel users is of utmost importance. While tapping, a conventional nondestructive method, is typically used to predict sub-surface delamination, water ingress can be identified with the naked eye. In this research, we utilized a modern-technology approach called passive thermography, together with a high-resolution digital camera and tapping. The study encountered two primary challenges; namely, the absence of direct solar radiation during the inspection and the groove-exposed surface of the unlined tunnel. The results demonstrated that passive thermography was able to detect delaminated areas and water infiltration on the tunnel's walls and ceiling, even without direct sunlight. Large delaminated areas can be detected with just a 2°C change in atmospheric temperature twelve hours before testing. Additionally, the results of image post-processing significantly contributed to enhancing the results of passive thermography. The thermal image was processed into a grayscale image prior to HE processing, which enhances contrast by over 50%. The combination of tapping, digital camera and passive thermography was proven to be effective in periodically inspecting unlined rock tunnels, while significantly reducing time and cost. KEYWORDS: Tunnel safety, Passive thermography, Old rock-cut tunnel, Hammer sounding, Non-destructive evaluation, Image post-processing.
Evaluating Manning's Roughness Coefficient for Flows with Equilibrium and Non-equilibrium Sediment Transport
Authors:   Universitas Gadjah Mada, Maini Miskar
Published: January 2024

One of the challenges in using Manning’s equation lies in accurately determining Manning’s roughness coefficient, especially due to sediment transport. The condition of sediment transport within a specific section of a river can be in equilibrium, meaning that the amount of sediment entering and exiting the segment is balanced or it can be in non-equilibrium, where there is an imbalance between the sediment entering and leaving the segment. Experiments were carried out in the laboratory to simulate both transport conditions, one involving sediment feeding (equilibrium condition) and the other without sediment feeding (non-equilibrium condition). A total of 180 mean velocity profiles were measured using an acoustic doppler velocimeter (ADV) in fixed and movable bed flows. The present experiment was combined with theoretical approaches to evaluate Manning’s coefficient in open channels under sediment transport-flow conditions and reach conclusive results. The shape of the velocity profile, u/U, for flows over a movable bed with sediment feeding is “slender” compared to those without sediment feeding. The presence of sediment transport affects the shape of the velocity profile, especially in the inner region, influencing Manning's roughness coefficient. This coefficient can be determined from two-point velocity measurements at z/H = 0.1 and 0.2 for fixed and movable bed flows with and without sediment feeding, respectively. On average, sediment feeding increases the coefficient by 19% compared to the non-sediment feeding case. KEYWORDS: Manning’s roughness coefficient, Velocity profile, Equilibrium and non-equilibrium, Sediment transport, Open-channel flow
Rehabilitation of Fire-damaged Reinforced-concrete Slabs Using Ferro-cement
Authors:   Al-Baath University, Aldarf Raneen
Published: January 2024

his study was conducted to investigate the effect of strengthening with ferro-cement on the flexural behavior of two-way RC slabs after exposure to direct fire. Twelve reinforced-concrete slabs were exposed to direct fire for one hour and cooled with air and water. They were then rehabilitated with a layer of ferro-cement using different bonding patterns (surface roughening, SBR material and screws). The effect of these variables was studied on the load-deflection relationship, ultimate load capacity, stiffness, energy absorption, ductility factor and strains of the compressed zone. The results showed a significant improvement in all the investigated parameters, demonstrating the efficiency of ferro-cement strengthening in improving the behavior of the slabs. It contributed to increasing the ultimate load capacity and initial stiffness of the slabs and to preventing and arresting crack propagation after cracking and even after reaching collapse. The effectiveness of SBR material in ensuring the bonding between the surface of the damaged slabs and the reinforcement layer was also revealed. KEYWORDS: Solid slab, Direct fire flame, Ferro-cement, Rehabilitation, SBR (styrene-butadiene rubber), Roughing.
Pengaruh Promosi dan Brand Image terhadap Keputusan Pembelian dengan Kepercayaan Merek sebagai Variabel Intervening (Studi pada Pelanggan Baru Indihome di Kota Semarang)
Authors: Hudatama Budiarmanda Ikhsan , Ngatno Ngatno
Published: January 2024

The importance of the internet for all circles makes internet service providers compete to make internet service products with quality connections to win the hearts of customers. In making the decision to choose Indihome, customers consider product choices from various providers through obtaining product information from promotional activities and brand image of the product. This information can affect the level of brand trust from customers to Indihome so that it becomes a consideration for customers to make a decision to install a new Indihome. This study uses non-probability sampling through purposive sampling with a sample of 100 respondents who are Indihome customers in the city of Semarang. The data analysis technique used quantitative analysis which included cross tabulation analysis, correlation coefficient test, simple and multiple regression analysis, coefficient of determination test, t test, mediation test and Sobel test. The results of this study indicate that each promotion, brand image, and brand trust have a positive effect on purchasing decisions with brand trust mediating the respective effects of promotion and brand image on purchasing decisions to install a new Indihome.Pentingnya internet bagi semua kalangan membuat para penyedia jasa internet bersaing membuat produk layanan internet dengan koneksi berkualitas untuk merebut hati pelanggan. Dalam membuat keputusan memilih Indihome, pelanggan mempertimbangkan pilihan produk dari berbagai provider melalui perolehan informasi produk dari kegiatan promosi dan brand image dari produk. Informasi tersebut dapat mempengaruhi tingkat kepercayaan merek dari pelanggan terhadap Indihome sehingga menjadi pertimbangan bagi pelanggan membuat keputusan untuk melakukan pemasangan baru Indihome. Penelitian ini menggunakan non probability sampling melalui purposive sampling dengan sampel 100 responden yang merupakan pelanggan Indihome di Kota Semarang. Teknik analisis data  menggunakan analisis kuantitatif yang meliputi analisis tabulasi silang, uji koefisien korelasi, analisis regresi sederhana dan berganda, uji koefisien determinasi, uji t, uji mediasi dan uji sobel. Hasil dari penelitian ini menunjukkan masing-masing dari promosi, brand image, kepercayaan merek berpengaruh positif terhadap keputusan pembelian dengan kepercayaan merek dapat memediasi pengaruh masing-masing dari promosi dan brand image terhadap keputusan pembelian untuk melakukan pemasangan baru Indihome.
Pengaruh Kompensasi dan Lingkungan Kerja terhadap Kinerja Karyawan dengan Kepuasan Kerja Sebagai Variabel Intervening CV Jawa Grafika Group Semarang (Studi pada CV Jawa Grafika Group Semarang)
Authors: Putra Rico Bintang , Pradhanawati Ari , Listyorini Sari
Published: January 2024

This study aims to analyze the effect of compensation and work environment on employee performance with the aim of working as an intervening variable CV. Jawa Grafika Group Semarang. The population in this study were all employees of CV. Jawa Grafika Group Semarang. While the sample in this study were employees of CV. Jawa Grafika Group Semarang which opened 40 employees. The results showed that the work environment had an effect on job satisfaction, while compensation had no effect on job satisfaction. Then compensation affects employee performance, work environment affects employee performance and job satisfaction affects employee performance. The results of testing the application of Job Satisfaction as a mediating variable using path analysis showed that there was a mediating effect of the application of Job Satisfaction between the relationship between Work Environment and Employee Performance, but there was no mediating effect of the application of Job Satisfaction between the relationship between Compensation and Employee Performance at CV. Jawa Grafika Group Semarang. Penelitian ini bertujuan untuk menganalisis pengaruh Pengaruh Kompensasi dan Lingkungan Kerja Terhadap Kinerja Karyawan dengan Kepuasan Kerja sebagai Variabel Intervening pada CV Jawa Grafika Group Semarang. Populasi dalam penelitian ini adalah seluruh karyawan CV Jawa Grafika Group Semarang. Sedangkan sampel pada penelitian ini adalah karyawan CV Jawa Grafika Group Semarang yang berjumlah 40 karyawan. Hasil penelitian menunjukkan Lingkungan Kerja berpengaruh terhadap Kepuasan Kerja, sedangkan Kompensasi tidak berpengaruh terhadap Kepuasan Kerja. Lalu Kepuasan Kerja berpengaruh terhadap Kinerja Karyawan. Hasil pengujian penerapan Kepuasan Kerja sebagai variabel pemediasi menggunakan analisis jalur menunjukkan bahwa terdapat pengaruh mediasi penerapan Kepuasan Kerja antara hubungan Lingkungan Kerja terhadap Kinerja Karyawan, namun tidak ada pengaruh mediasi penerapan Kepuasan Kerja antara hubungan Kompensasi terhadap Kinerja Karyawan di CV.Jawa Grafika Group Kota Semarang.
A contribution to the variability of Prunus spinosa L. in the vicinity of the mediaeval Castle Kolno, S-W Poland
Authors: Kosina Romuald
Published: January 2024

The variability of fruit stone characteristics of medieval fossil forms and modern ones was analysed in a small Prunus spinosa (blackthorn) population in the vicinity of Castle Kolno near Stare Kolnie in Opole Province. A modern putative hybrid resulting from natural crossing with cultivated plums was discovered, corresponding to some fossil morphotypes. The analysis of the correlations of features indicated developmental relationships between them. The pattern of variability of the examined stones in the ordination space confirmed the development of the Prunus spinosa-Prunus domestica complex as an element of a dynamic syngameon. The population also showed variations in leaf morphotypes, which may be used in taxonomic analysis.
The first record of Euphorbia hypericifolia L. (Euphorbiaceae) in Libya
Authors: Hadi Mahklouf Mohammed
Published: January 2024

The herb Euphorbia hypericifolia L. was recorded for the first time in the flora of Libya. The species was collected in Tobruk city in north eastern Libya in 2022. It is presented here with updated nomenclature, taxonomic description, geographical distribution, and the place of occurrence in Libya. A coloured photograph taken in the field is also provided. The voucher specimens have been deposited in the Herbarium of Botany Department (ULT), Faculty of Sciences, University of Tripoli, Libya.
INVESTIGATION OF INVESTOR SENTIMENT THROUGH CONFIDENCE AND EXPECTATION INDICES: A BEHAVIORAL APPROACH
Authors: TAYAR Tunahan , AKTAŞ Ramazan
Published: January 2024

In this study, the effect of confidence and expectation indices, which are the factors of investor sentiment, on investment decisions was investigated. In the sample, United States was chosen as an example of a developed country and Turkey was chosen as an example of a developing country. The effects of independent variables on investment instruments were examined with multiple linear regression models, and then generalized autoregressive conditional variance models were created for volatility estimates. Stock index returns (BIST100 and S&P500) and the changes in the total deposit amount in the local currencies of both countries were used as dependent variables. As independent variables, the Consumer Confidence Index, Economic Confidence Index, General Confidence Index and VIX Volatility Index were included for both countries in analyses. The monthly frequency dataset between December 2012 - April 2022 was included. As a result of the regression models, it has been observed that the independent variables generally affect the investments in both countries. As a result of the volatility models, while the independent variables did not have an effect on the investments made in the BIST100 index, it was observed that the variables related to expectations and confidence had a significant effect on the other three investment instruments.
Baroreflex sensitivity is blunted in hypoxia independently of changes in inspired carbon dioxide pressure in prematurely born male adults
Authors: Manferdelli Giorgio , Narang Benjamin J. , Bourdillon Nicolas , Debevec Tadej , Millet Grégoire P.
Published: January 2024

Premature birth may result in specific cardiovascular responses to hypoxia and hypercapnia, that might hamper high‐altitude acclimatization. This study investigated the consequences of premature birth on baroreflex sensitivity (BRS) under hypoxic, hypobaric and hypercapnic conditions. Seventeen preterm born males (gestational age, 29 ± 1 weeks), and 17 age‐matched term born adults (40 ± 0 weeks) underwent consecutive 6‐min stages breathing different oxygen and carbon dioxide concentrations at both sea‐level and high‐altitude (3375 m). Continuous blood pressure and ventilatory parameters were recorded in normobaric normoxia (NNx), normobaric normoxic hypercapnia (NNx + CO2), hypobaric hypoxia (HHx), hypobaric normoxia (HNx), hypobaric normoxia hypercapnia (HNx + CO2), and hypobaric hypoxia with end‐tidal CO2 clamped at NNx value (HHx + clamp). BRS was assessed using the sequence method. Across all conditions, BRS was lower in term born compared to preterm (13.0 ± 7.5 vs. 21.2 ± 8.8 ms⋅mmHg−1, main group effect: p < 0.01) participants. BRS was lower in HHx compared to NNx in term born (10.5 ± 4.9 vs. 16.0 ± 6.0 ms⋅mmHg−1, p = 0.05), but not in preterm (27.3 ± 15.7 vs. 17.6 ± 8.3 ms⋅mmHg−1, p = 0.43) participants, leading to a lower BRS in HHx in term born compared to preterm (p < 0.01). In conclusion, this study reports a blunted response of BRS during acute high‐altitude exposure without any influence of changes in inspired CO2 in healthy prematurely born adults.
Arterial desaturation rate does not influence self‐selected knee extension force but alters ventilatory response to progressive hypoxia: A pilot study
Authors: Farra Saro D. , Jacobs Ira
Published: January 2024

The absolute magnitude and rate of arterial desaturation each independently impair whole‐body aerobic exercise. This study examined potential mechanisms underlying the rate‐dependent relationship. Utilizing an exercise protocol involving unilateral, intermittent, isometric knee extensions (UIIKE), we provided sufficient reperfusion time between contractions to reduce the accumulation of intramuscular metabolic by‐products that typically stimulate muscle afferents. The objective was to create a milieu conducive to accentuating any influence of arterial desaturation rate on muscular fatigue. Eight participants completed four UIIKE sessions, performing one 3 s contraction every 30s at a perceived intensity of 50% MVC for 25 min. Participants voluntarily adjusted their force generation to maintain perceptual effort at 50% MVC without feedback. Reductions in inspired oxygen fraction (FIO2) decreased arterial saturation from >98% to 70% with varying rates in three trials: FAST (5.3 ± 1.3 min), MED (11.8 ± 2.7 min), and SLOW (19.9 ± 3.7 min). FIO2 remained at 0.21 during the control trial. Force generation and muscle activation remained at baseline levels throughout UIIKE trials, unaffected by the magnitude or rate of desaturation. Minute ventilation increased with hypoxia (p < 0.05), and faster desaturation rates magnified this response. These findings demonstrate that arterial desaturation magnitude and rate independently affect ventilation, but do not influence fatigue development during UIIKE.
Green consumer behaviour influences Indonesian palm oil sustainability
Authors: Purnomo H. , Kusumadewi S.D. , Ilham Q.P. , Kartikasara H.N. , Okarda B. , Dermawan A. , Puspitaloka D. , Kartodihardjo H. , Kharisma R. , Brady M.A.
Published: January 2024

Palm oil businesses affect livelihoods and the environment, particularly forests, with land-use change and climate change impacts. This research aimed to develop a model for understanding the influences of global trade and political economy factors on palm oil sustainability and livelihoods
in Indonesia. It combined systematic review with structural equation modelling through a model called POPETS (Palm Oil Political Economy and Trade Structural equation model). The study revealed that palm oil sustainability is defined by employment opportunities and no deforestation, while
livelihoods are defined by household income. Trade and political economy factors (structures, institutions and actors) significantly influence the sustainability of palm oil. Trade has indirect effects on sustainability and livelihoods, while actors have a direct effect on sustainability.
There is also a positive correlation between sustainability and livelihoods. These findings suggest the importance of synergizing global trade effects and national government roles to advance palm oil sustainability in the producing countries.
Environmental products: a definition, a typology, and a goodbye to non-timber forest products
Authors: Smith-Hall C. , Chamberlain J.
Published: January 2024

The material relationships between nature and people are complex and rich, ranging from support to current consumption to safety nets and poverty reduction. The term 'non-timber forest products' (in many different guises) has been used for decades in attempts to group a wide range of
products, such as barks, bulbs, caterpillars, leaves, and fruits, without consensus on the definition. Here we argue that a different approach to product classification would be beneficial. We propose the term 'environmental products' defined simply and eloquently as "tangible biotic and abiotic
goods gathered from any biome or created through synthetic production". We propose a typology with six dimensions: product type, mode of production, purpose of production, scale of production, resource tenure, and biome of origination. The typology allows for consistent and transparent delimitation
of environmental products useful to actors with varying objectives. We apply the typology to two cases, illustrating that the older terminology is no longer needed.
On the Cauchy problem for the generalized double dispersion equation with logarithmic nonlinearity
Authors: Garti Ines , Berbiche Mohamed
Published: January 2024

In this paper, we investigate the global existence and finite time blow-up
of solution for the Cauchy problem of one-dimensional fifth-order Boussinesq
equation with logarithmic nonlinearity. Fist we prove the existence and
uniqueness of local mild solutions in the energy space by means of the
contraction mapping principle. Further under some restriction on the initial
data, we establish the results on existence and uniqueness of global
solutions and finite time blow-up of solutions by using the potential well
method. Moreover, the sufficient and necessary conditions of global
existence and finite time blow-up of solutions are given.
Numerical Approximation of Gaussian Random Fields on Closed Surfaces
Authors: Bonito Andrea , Guignard Diane , Lei Wenyu
Published: January 2024

We consider the numerical approximation of Gaussian random fields on closed surfaces defined as the solution to a fractional stochastic partial differential equation (SPDE) with additive white noise. The SPDE involves two parameters controlling the smoothness and the correlation length of the Gaussian random field. The proposed numerical method relies on the Balakrishnan integral representation of the solution and does not require the approximation of eigenpairs. Rather, it consists of a sinc quadrature coupled with a standard surface finite element method. We provide a complete error analysis of the method and illustrate its performances in several numerical experiments.
Structure, flexibility and hydration properties of lignin dimers studied with Molecular Dynamics simulations
Authors: Hackenstrass Klara , Hasani Merima , Wohlert Malin
Published: January 2024

Lignin is an abundant polymer found in wood and grasses, but due to its heterogeneity and complex macromolecular structure it has been less utilized than cellulose. While the building blocks are known, the way they are linked is less understood. Here, Molecular Dynamics simulations were used to systematically characterize seven linkages found in native lignin. Their influence on lignin and water structure, and their interactions were analyzed. The study is limited to guaiacyl (G-G) dimers connected by the following common softwood linkages; 5-5′, 4-O-5′, α-O-4′, β-1′, β-5′, β-O-4′ and β-β′. The simulations show that the linkage has a significant effect on conformational preference and lignin-water interaction. Especially, the behavior of the β-O-4′ shows unique properties, both in terms of conformational freedom and interaction with water. Within the β-O-4′ dimer, π–π stacking between the aromatic rings is possible. The molecule has two distinct common conformations, one compressed and one extended. These preferences also lead to a different effect of β-O-4′ dimer on the surrounding water, where water is found close to the linkage itself but expelled from the aromatic rings to a larger extent than the other linkages. These findings are important for lignin solubility as well as its depolymerization mechanisms.
Identifying the origin of delayed electroluminescence in a polariton organic light-emitting diode
Authors: Abdelmagid Ahmed Gaber , Qureshi Hassan A. , Papachatzakis Michael A. , Siltanen Olli , Kumar Manish , Ashokan Ajith , Salman Seyhan , Luoma Kimmo , Daskalakis Konstantinos S.
Published: January 2024

Modifying the energy landscape of existing molecular emitters is an attractive challenge with favourable outcomes in chemistry and organic optoelectronic research. It has recently been explored through strong light–matter coupling studies where the organic emitters were placed in an optical cavity. Nonetheless, a debate revolves around whether the observed change in the material properties represents novel coupled system dynamics or the unmasking of pre-existing material properties induced by light–matter interactions. Here, for the first time, we examined the effect of strong coupling in polariton organic light-emitting diodes via time-resolved electroluminescence studies. We accompanied our experimental analysis with theoretical fits using a model of coupled rate equations accounting for all major mechanisms that can result in delayed electroluminescence in organic emitters. We found that in our devices the delayed electroluminescence was dominated by emission from trapped charges and this mechanism remained unmodified in the presence of strong coupling.
Application of low-altitude wind shear recognition algorithm and laser wind radar in aviation meteorological services
Authors: Xu Ting , Ma Xiaoling , Li Qionghua , Lu Yan
Published: January 2024

The rapid development of the aviation industry has attracted great attention to aviation safety, and the identification and early warning of low-level wind shear have become crucial. Therefore, it is also necessary to improve the performance of laser wind radar technology and achieve accurate recognition of low-level wind shear. In this regard, this study is based on laser wind radar technology and uses the K-neighborhood frequency method to denoise radar data. And based on the least squares fitting method, two-dimensional synthetic wind shear is obtained, and a low altitude wind shear recognition model based on laser wind radar is constructed. These test results confirm that the correlation coefficient values of the wind speed fitting curve measured by the laser detection radar on sunny, cloudy, and fog days are 0.978, 0.954, and 0.961, respectively. And the correlation coefficient values of wind direction fitting curve are 0.984, 0.982, and 0.952, respectively. On sunny, cloudy, and fog days, the recognition accuracy values of the low-level wind shear recognition model are 85.92, 82.17, and 72.43%, respectively. And the recognition accuracy values of wind analyzer radar are 70.18, 62.57, and 55.89%, respectively. In practical applications, the low-level wind shear recognition model accurately recognizes the occurrence of low-level wind shear. This study has achieved accurate recognition of low-level wind shear and has better performance compared to other existing radars. It has played an important reference role in aviation safety.
Spectral uncertainty analysis of grassland and its camouflage materials based on land-based hyperspectral images
Authors: Zhao Jiale , Zhou Bing , Wang Guanglong , Liu Jie , Ying Jiaju , Chen Qi , Zhao Runze
Published: January 2024

Spectral uncertainty is one of the most prominent spectral characteristics of hyperspectral images. Compared to the process of remote sensing hyperspectral imaging, hyperspectral imaging under land-based imaging conditions has the characteristics of variable detection directions, random imaging times, and complex environmental conditions, resulting in increased spectral uncertainty of targets in land-based hyperspectral images. The spectral uncertainty of the target mainly refers to the phenomenon of “Same spectral reflectance but different objects” and “Same object but different spectral reflectance” which poses significant difficulties for subsequent hyperspectral image target detection and recognition. In order to analyze the spectral uncertainty of hyperspectral images in land-based applications and address the issue of spectral uncertainty in similar targets, a spectral uncertainty evaluation index based on standard deviation vector was proposed. For the overall spectral separability between different types of targets, a quantitative index based on Jaccard Distance (JD-SSI) is proposed to measure the spectral separability of different kinds of targets. The experiment focused on grassland and its four typical camouflage materials, analyzing the spectral intra class differences and inter class separability of each target with grassland. It is a fundamental work for studying the spectral characteristics of land-based hyperspectral images, providing a new approach for subsequent spectral band extraction, hyperspectral image classification, and target detection tasks.
MODELO DE MATURIDADE E DE TOMADA DE DECISÃO NO CONTEXTO DA INDUSTRIA 4.0 NO SETOR DE FERRAMENTARIAS
Authors: Moreira Luis Fernando , Borsatto Catiane , Vidor Gabriel
Published: January 2024

As três revoluções industriais ocasionaram mudanças nos processos produtivos, com marcos históricos decorrentes que ainda vêm sendo analisados posterior a seus acontecimentos. A quarta revolução industrial, intitulada de Indústria 4.0, é pesquisada atualmente em contextos industriais. Partindo desse pressuposto, esse estudo contemplou dois objetivos: i) diagnosticar e medir o nível de maturidade da I4.0 nas ferramentarias e ii) propor uma ferramenta de tomada de decisão a partir de tal diagnóstico, com a hierarquização da implementação das tecnologias habilitadoras da I4.0 para as ferramentarias. Trata-se de um estudo de caráter misto com entrevistas que envolveram indivíduos de dez ferramentarias de Caxias do Sul, delineando um estudo de múltiplos casos. Para a etapa quantitativa, utilizou-se uma escala de seis níveis para medir e diagnosticar I4.0 nas ferramentarias, bem como matriz GUT para hierarquizar as prioridades de implementação da I4.0 para tomada de decisão. Dentre os principais resultados, destaca-se a elaboração de um radar tecnológico das ferramentarias, a partir da média estatística identificada. Para a tomada de decisão, elegeram-se cinco prioridades de implementação, que englobam custos de implementação, custos de adequação das organizações, tecnologia aplicada, recursos humanos, educação e cultura organizacional. Como principal prioridade, tem-se a criação de valor para as ferramentarias, ocorrendo por meio de integração vertical (integração entre diferentes níveis de hierarquias de tecnologias e informação), horizontal (através de redes de valor associando todos os interventores da cadeia de valor) e conexão de ponta a ponta.
DESENVOLVIMENTO DE PRÓTESE PARA AUSÊNCIA DE FALANGE MEDIANA
Authors: De Castro Maciel Daniel , De Oliveira Zuba Ana Paula , Dias Vianna Humberto , Nicolini Luis Fernando
Published: January 2024

A falta de um dos dedos da mão, seja por um trauma, doença ou uma anomalia congênita, causa deficiências funcionais e disfunções sociais para o paciente. A indústria hoje disponibiliza diversas opções de próteses, sendo algumas com caráter funcional devolvendo alguns movimentos dos membros perdidos e outras são de caráter estético. Porém, grande parte dessas próteses possuem um valor alto monetário, dificuldade de encontrar sua fabricação (que geralmente são importadas de países desenvolvidos), principalmente devido a sua grande complexidade, o que as torna não acessíveis para grande a maioria das pessoas. Além de valor elevado, existe ainda a falta de um modelo que seja simples e funcional, de maneira a atender quem precise de uma prótese individual para dedo ou membro. O objetivo deste trabalho foi o estudo de uma estrutura mecânica funcional que possibilite a partir de uma prótese confeccionada retomar movimentos restritos dos dedos, além de apresentar um baixo custo econômico. Para isto, foi realizada a pesquisa exploratória com análise qualitativa. O modelo foi desenvolvido através do processo de Impressão 3D e o material utilizado foi o PLA. O protótipo apresentou a flexão esperada, sendo os ângulos alcançados extremamente parecidos com os ângulos de flexão dos dedos humanos. Além disso, o modelo também proporcionou a capacidade de executar tarefas cotidianas, como por exemplo, digitação e pegada de objetos. Ainda, o protótipo funciona a partir do movimento do coto do paciente, apresentando uma mobilidade independente e conforto adequado.
RECONHECIMENTO FACIAL COM INTELIGÊNCIA ARTIFICIAL UTILIZANDO A PLATAFORMA ROBOFLOW
Authors: Matuck Guilherme Rodrigues , Abreu Castro Arthur Jackson , Da Silva Lázaro Eduardo , Gomes Carvalho Eduardo
Published: January 2024

Este artigo tem como objetivo fornecer uma visão geral sobre reconhecimento facial em tempo real e discutir as melhores práticas para treinar modelos de detecção em tempo real usando a plataforma Roboflow. Serão discutidos os diferentes algoritmos de detecção de objetos em tempo real e como selecionar o algoritmo adequado para treinar modelos. Além disso, serão apresentados exemplos de conjuntos de dados de treinamento e modelos de detecção de objetos em tempo real, bem como estudos de caso de aplicativos reais. Por fim, serão discutidas considerações éticas e legais ao implementar sistemas de detecção de objetos em tempo real e como a plataforma Roboflow pode ajudar a garantir a privacidade e a segurança dos dados.
Rodents/Shrews and their Ectoparasites are not Associated with the Enzootic Maintenance and Transmission of Coxiella burnetii to Livestock and Humans in Puducherry, India
Authors: Indhu Prathibha A , Rekha V Bhanu , Hariharan R , Ajay Kumar V J , Lakshmy S , Kasirajan Anand , Madhavan Thirumurthy , Panneer D
Published: January 2024

Objectives:

“Q fever,” which is caused by Coxiella burnetii, is endemic in India. In addition to livestock, rodents have also been reported to be associated with enzootic maintenance, favoring pathogen transmission. Currently, however, no data are available on the role of rodents in “Q fever” transmission in India.

Methods:

A cross-sectional study was undertaken in 39 Puducherry villages to screen Coxiella burnetii in synanthropic rodents (rats and shrews) and their ectoparasites (ticks, mites, and fleas) by real-time and conventional PCR protocols targeting the pathogen specific IS 1111 and com 1 genes.

Results:

One hundred forty animals were trapped (107 shrews and 33 rats). The ticks, mites, and fleas infesting the rodents were identified as Rhipicephalus sanguineus, Leptotrombidium deliense and Schoengastiella spp., and Xenopsylla cheopis, respectively. PCR screening of the DNA extracted from the rodent/shrew blood samples and their ectoparasites tested negative for C. burnetii.

Conclusions:

Synanthropic rodents, such as rodents/shrews and their ectoparasites do not have a pivotal part in the enzootic maintenance and spread of Q fever to humans and livestock in Puducherry.
Government Spending Effect on HDI Indragiri Hilir: An ECM Approach
Authors: Fadly Fajar , Edward Yurnal
Published: January 2024

Indragiri Hilir Regency has the second lowest Human Development Index compared to the newly established regencies and cities in Riau province. However, Indragiri Hilir Regency has a relatively high allocation of development budget and per capita income compared to other regencies and cities. The objectives of the study were to determine whether the effect of the Indragiri Hilir government expenditure realization on the Human Development Index is cointegrated, to examine the long-term impact of expenditure realization on education, health, infrastructure, environmental, and social protection functions on the Human Development Index in Indragiri Hilir, and to analyze the short-term effects of environmental and social protection functions on the Human Development Index. The study employed the Error Correction Model (ECM) method, utilizing data from the period 2007 to 2021 obtained from the Directorate General of Fiscal Balance (DJPK) of the Indonesian Ministry of Finance for independent variables, while dependent variables were sourced from the Central Statistics Agency (BPS). The study findings revealed that government spending has a cointegrated influence on the Development Index. Furthermore, it was observed that the realization of government spending on education, health, and infrastructure functions did not significantly affect the Human Development Index in the Indragiri Hilir regency. In contrast, the realization of government spending on environmental functions showed a significant positive correlation. Similarly, the realization of Indragiri Hilir's government spending on social protection functions had a significant negative correlation. Therefore, the government of Indragiri Hilir Regency should assess expenditure realization on education, health, and infrastructure functions and introduce innovative programs. Increased spending on social protection led to a reduction in the Human Development Index.
Map Distribution of Factors Affecting Stunting in East Nusa Tenggara
Authors: Abdila Naufal Shela , Fitriani Rahma , Soehono Loekito Adi
Published: January 2024

Stunting is chronic malnutrition in children under five years of age, which results in disturbances in the growth and development of children. Several factors, such as economic, health, and environmental factors, can influence stunting. In this study, a distribution map of the factors influencing stunting in East Nusa Tenggara districts/cities will be formed using Geographically Weighted Regression with a Spatial Lag of X. The variables used are the percentage of infants under two years who are breastfed, the percentage of toddlers who receive complete immunization, the percentage of households that do not use defecation facilities, the percentage of mothers who do not attend formal education, the GRDP growth rate, actual expenditure per capita, and the newly formed variable, namely GRDP growth rate around the i-th observation locations. From the results, it can be concluded that the western part of East Nusa Tenggara has unaffected economic factors, and the eastern part is an area where almost all variables are influential. Only the percentage of mothers who do not attend formal education has no effect, and the northern part is an area with economic factors which has an effect. The southern part is an area with child health factors that have no effect
Growth hormone and radiation therapy: friend, foe, or both?
Authors: Bahamondes Lorca Verónica A , Wu Shiyong
Published: January 2024

Radiotherapy is one of the major options currently for cancer treatment. Radiotherapy causes cellular damage inducing cell death, which is expected to be selective for tumor cells. However, side effects that alter the surrounding normal tissue are often hard to be avoided. When radiation involves the hypothalamic–pituitary axis, growth hormone deficiency (GHD) is frequently induced, causing developmental and metabolic-related diseases in childhood cancer survivors. Growth hormone (GH) replacement therapy has been used for these patients and has been shown to be safe in general. However, there are some debating for its long-term safety due to the known roles of GH in inducing cell growth, which could be related to cancer recurrence. In addition, studies have shown that GH is involved in the development of resistance to chemotherapy and radiotherapy through various mechanisms. In this review, we will first discuss the effects of GHD induced after radiotherapy and the safety of the GH replacement treatment. Then, we will discuss the role of the GH–IGF-1 axis in radioresistance via a mechanism of improving DNA repair.
Darbo ir laisvalaikio pusiausvyros paieškos iš kartų kaitos Lietuvos visuomenėje perspektyvos
Authors: Savicka Aida
Published: January 2024

Work and leisure are interlinked and mutually determining spheres of human life, both of which are socially constructed concepts that depend on a variety of cultural, social and economic factors. In contemporary society, the balance between work and leisure is particularly relevant in the light of various social, economic and technological changes, such as the intensification of work, the constant accessibility of workers to smart communication devices, the blurring of the boundaries between professional and private time, the introduction of flexible forms of work organisation, etc. The pursuit of work-life balance is therefore even becoming a kind of cultural value imperative aimed at ensuring individual and societal well-being.
Using empirical data from the European Values Survey spanning almost three decades (1990-2017), this paper analyses the dynamics of value orientations related to work and leisure in Lithuania, in order to see how the importance of these areas of life and the perception of their relationship to each other is changing in different groups of the population, and how this is related to the change of generations. Data were analysed using descriptive statistics, factor analysis, nonparametric covariance analysis and multiple group comparison test and revealed significant differences in value attitudes related to work and leisure and their interrelationship in different social generations in Lithuania, suggesting that, while the importance of work itself has remained essentially unchanged, we are witnessing a profound cultural change, manifested as a broadening of the spectrum of expectations related to work and a search for a better work-life balance.
Effect of Hypervirulent Strains, Antibiotic Resistance, and Host Characteristics on Mortality of Klebsiella pneumoniae Bacteremia Patients at a Tertiary Referral Hospital in Denpasar, Indonesia
Authors: Adhy Candra I Kadek Bayu , Suranadi I Wayan , Darwinata Agus Eka , Tarini Ni Made Adi , Dharmika Ida Ayu Gde Wahyudevi , Fatmawati Ni Nengah Dwi
Published: January 2024

Klebsiella pneumoniae bacteremia is one of the leading causes of sepsis that has a high mortality rate. The effect of multidrug resistance and different virulence of Klebsiella pneumoniae on mortality is still controversial. This study aimed to determine the impact of hypervirulent K. pneumoniae (hvKp), MDR, and clinical characteristics on mortality of K. pneumoniae bacteremia patients. A retrospective cross-sectional study was conducted on  K.  pneumoniae bacteremia cases of patients hospitalized at Professor dr. I.G.N.G Ngoerah General Hospital from December 1, 2020, to May 31, 2021. A positive PCR of rmpA, iucA genes, and/or a positive string test was identified as hvKp. The mortality rate of 51 K. pneumoniae bacteremia patients samples (aged 0-74 years) was 72.5%, in which 9.8% (5/51) of them were hvKp and 51% of the isolates (26/51) produced the Extended Spectrum Beta Lactamase (ESBL). Furthermore, 9.8% (5/51) of the cases were carbapenem-resistant. Thus, hvKp, MDR, gender characteristics, and comorbidities do not significantly affect the mortality of K. pneumoniae bacteremia patients. Multivariate logistic regression analysis showed that sepsis (odds ratio (OR) 4.29; p=0.038) and adult age group (mean 50 years) (OR 3.75; p=0.039) are independent predictors with a significant effect on mortality of  K. pneumoniae bacteremia patients. Careful and integrated management of K. pneumoniae bacteremia patients is essential for better outcomes, especially in sepsis and elderly patients. Although hvKp prevalence is low, emerging MDR-hvKp in health facilities is a severe concern for further actions and research.
EBV and quantum medicine
Authors: Djuricic Ivanka , Ljujc Milena
Published: January 2024

The article describes the treatment of three patients for acute infection with the Epstein-Barr virus using symptomatic and bioresonance therapy while observing the speed and degree of their recovery.
Paulo Freire and socio-emotional education
Authors: de Melo Leandro Ferreira
Published: January 2024

The National Common Core Curriculum (BNCC) was approved by the Ministry of Education on December 20, 2017 for the Early Childhood Education and Primary Education stages, and on December 14, 2018 for the Secondary Education stage. With its promulgation, states and municipalities are obliged to re/organize their curricular references, harmonizing them with the objectives established for basic education. The Base emphasizes the need to develop cognitive skills alongside socio-emotional skills, underpinned by curricular content. From this context, this chapter aimed to defend the thesis that many concepts related to socio-emotional skills - such as those highlighted in the BNCC's ten general competences: empathy, dialogue, cooperation, autonomy, responsibility, ethics, solidarity, among others, were cited and discussed by Paulo Freire in his works, especially in the book "Pedagogy of autonomy: knowledge necessary for educational practice" (1996).
Noise reduction to prevent hearing problems in workers
Authors: Romero Becerra Edgar Adrian , Talavera-Sánchez Oscar Joel , Ramírez Fraire Rosa Oliva , Barrio Echavarría Gabriel Filemón
Published: January 2024

Noise in the workplace is one of the most frequent occupational hazards for which almost all workers were once exposed to this condition. Objective: Determine if preventive maintenance can reduce the noise to which workers are exposed. Methodology: Noise measurements were carried out with a previously calibrated 3M Sound Pro-SE Integrating Sound Level Meter before performing preventive maintenance on the machinery and after maintenance. Results: An average of 71.8±9.6 dBA was obtained throughout the company. In the production area it was 86.9±5.2 dBA. After performing maintenance on the machinery, the average in the company was 70.1±8.7 dBA, and in the production area 81.9±8.1 dBA, being statistically significant p=0.03. Conclusion: Preventive maintenance is of great importance since it gives us evidence that not only is the machinery functioning properly, but it also reduces the noise levels to which workers are exposed, reducing the probability of loss of work. hearing due to noise exposure.
Szilvia Horvath, Magdolna Kiss: Pannoniai furdokalauz. Rippl Ronai Muzeum – Genianet, 2019. Printed ISBN 978-615-5687-02-0
Authors: Lang Tünde
Published: January 2024

The book review presents the Roman baths in the province of Pannonia. The book was written by Szilvia Horváth, who is an archaeologist in the museum of Rippl-Rónai in Kaposvár and Magdolna Kiss, who is also an archaeologist and the manager of GeniaNet Book Publishing Company. Hungary is rich in thermal water. The book presents the use and typology of Roman baths.
ДОСВІД ЕКСПЕРИМЕНТАЛЬНИХ ДОСЛІДЖЕНЬ З РАДІАЦІЙНОЇ ОНКОЛОГІЇ В ІНСТИТУТІ ЕКСПЕРИМЕНТАЛЬНОЇ ПАТОЛОГІЇ, ОНКОЛОГІЇ І РАДІОБІОЛОГІЇ ІМ. Р.Є. КАВЕЦЬКОГО НАН УКРАЇНИ
Authors: Дьоміна Е.
Published: January 2024

У цій статті коротко відображено наш багаторічний досвід досліджень у галузі експериментальної та клінічної радіаційної онкології. Його етапи об'єднує ключове слово "радіочутливість". Послідовно представлено та інтерпретовано основні результати біодозиметрії опромінення в широкому діапазоні доз і залежно від якості іонізуючого випромінювання та визначення індивідуальної радіочутливості організму онкологічних хворих; обґрунтовано використання радіомітигаторів як в онкології з метою зниження частоти й тяжкості постпроменевих ускладнень, так і для радіаційного захисту населення в разі ядерної загрози. Так, уперше встановлено радіопротекторну дію антиоксиданту інозину в соматичних клітинах онкологічних хворих в інтервалі малих доз опромінення — зниження рівня радіаційно-індукованих аберацій хромосом до значень спонтанного. Вперше встановлено, що в осіб, гіперчутливих до опромінення, репараційний потенціал знижений приблизно на 60% порівняно з групою осіб з нормальними показниками індивідуальної радіочутливості. Визначено цитогенетичні предиктори радіочутливості здорових клітин з оточення опромінюваної пухлини. На жаль, їх ще не використовують у променевій терапії під час індивідуального планування курсу опромінення та оцінки тяжкості постпроменевих ускладнень. Пріоритетним напрямом сучасної радіаційної онкології вважаємо продовження інтенсивного пошуку і розробку радіопротекторів селективної дії, які б вибірково захищали тільки здорові тканини з оточення опромінюваної пухлини, знижуючи їхню радіочутливість шляхом активації процесів репарації.
DENDRITIC CELLS IN GLIOBLASTOMA TREATMENT: A MODERN VIEW OF THE PROBLEM AND OWN EXPERIENCE
Authors: Glavatskyi O. , Khranovska N. , Skachkova O. , Gorbach O. , Khmelnytskyi H. , Shuba I. , Pedachenko Ye. , Zemskova O. , Zemskova O.
Published: January 2024

Glioblastoma (GBM) is the most aggressive primary malignant brain tumor in adults. The improvement of the efficacy of GBM treatment is an urgent problem encouraging the development of novel therapeutic strategies, in particular, immunotherapeutic modalities. With more understanding of the intimate interrelationships between the immune system and the mechanisms involved in cancer origin and progression, the skepticism related to the relevance of the immunotherapeutic approaches in the treatment of brain tumors is gradually decreasing. The review discloses the modern concepts on the association between CNS and the immune system. For a long time, CNS was considered as the immunoprivileged site that prevents the effects of immunotherapy in the treatment of brain tumors. Nowadays, these views are reconsidered, which opens the way to the use of immunotherapeutic approaches in GBM treatment. The results of the recent clinical trials on immunotherapy as a supplement to the conventional GBM treatment are considered. Vaccines based on the dendritic cell (DC) technology are regarded as the most promising for this purpose. The preliminary results of the Ukrainian clinical study are also presented and discussed. The results of the international clinical trials as well as our own experience give evidence of the relevance for using DC vaccines in the complex treatment of GBM, which is supported by the increased survival of patients and the safety of vaccine application. It is of high importance that GBM patients with the most unfavorable prognosis can benefit from DC vaccines as a component of the complex treatment. The prospects for immunotherapy in neurooncology are discussed.