bluuebunny/crossref_metadata_2025 huggingface dataset:
Association between N-Terminal Prohormone Brain Natriuretic Peptide and Decreased Skeletal Muscle Mass in a Healthy Adult Population: A Cross-Sectional Study
Authors: Yoo Tae Kyung , Wu Marie Yung-Chen , Kim Moon Soo , Lee Mi-Yeon , Lee Yong-Taek , Yoon Kyung Jae , Park Chul-Hyun
Published: March 2023

Background: Although an inverse association between the N-terminal prohormone brain natriuretic peptide (NT-proBNP) and obesity exists, only few major studies have assessed the association between NT-proBNP levels and skeletal muscle mass in asymptomatic healthy adults. Therefore, this cross-sectional study was conducted.Methods: We assessed participants who underwent health examinations at Kangbuk Samsung Hospital in South Korea from January 2012 to December 2019. Appendicular skeletal muscle mass was measured using a bioelectrical impedance analyzer, and the skeletal muscle mass index (SMI) was calculated. Participants were divided into the control, mildly low skeletal muscle mass (LMM) (−2 standard deviation [SD] < SMI ≤−1 [SD]), and severely LMM groups (SD ≤−2) based on their SMI. The association between elevated NT-proBNP level (≥125 pg/mL) and skeletal muscle mass was assessed using multivariable logistic regression analysis with adjustment for confounding factors.Results: This study enrolled 15,013 participants (mean age, 37.52±9.52; men, 54.24%; control, n=12,827; mildly LMM, n=1,998; severely LMM, n=188). Prevalence of elevated NT-proBNP was higher in mildly and severely LMM groups than in the control group (control, 1.19%; mildly LMM, 1.4%; severely LMM, 4.26%; P=0.001). The adjusted odds ratio (OR) of elevated NT-proBNP was significantly higher in severely LMM (OR, 2.87; 95% confidence interval [CI], 1.3 to 6.37) than in control (OR, 1.00; reference) or mildly LMM groups (OR, 1.24; 95% CI, 0.81 to 1.89).Conclusion: Our results showed that NT-proBNP elevation were more prevalent in participants with LMM. In addition, our study showed an association between skeletal muscle mass and NT-proBNP level in a relatively young and healthy adult population.
Analisis Biaya Serta Percepatan Durasi Proyek Menggunakan Metode Crashing dengan Sistem Waktu Gilir Kerja dan Lembur (Studi Kasus: Puskesmas Wolowaru, Kabupaten Ende)
Authors: Jayantari Made Widya , Predana I Made Aryatirta , Wade Yohanes Rikardus
Published: March 2023

The construction of the Wolowaru Community Health Center in Ende Regency has been delayed. Delays in the duration of this project will have an impact on project costs which will get bigger. Therefore, an analysis of the accelerated duration of project implementation is needed so that the initial target can be achieved. This study applies the crashing method, namely speeding up the duration of each work item according to needs and calculations so as to avoid excessive delays. The application of this method is assisted by using the Microsoft Project 2013 with alternative working hours or overtime and work shift systems. The results of the analysis on the Wolowaru Community Health Center construction project in Ende Regency showed that the total project cost after carrying out an alternative of two hours of additional working hours was Rp. 8,371,332,720 and the duration of project implementation is 175 working days. This shows a fee that is 0.62% more expensive than the normal total cost and 20% faster than the normal duration. Then for the project cost after carrying out an alternative system of morning shifts and night shifts, it is Rp. 8,359,287,673 and the duration of project implementation is 156 working days. This shows a fee that is 0.48% more expensive than the normal total cost and 39% faster than the normal duration. From this study, it shows that the implementation of the work shift system requires cheaper costs with a shorter duration of work than the implementation of additional working hours in the Wolowaru Health Center development project in Ende Regency.
Analisis Perbandingan Perkerasan Kaku dan Perkerasan Lentur Pada Proyek Peningkatan Jalan Celukan Bawang-Pelabuhan
Authors: Sutapa I Ketut , Wirahaji Ida Bagus , Ariadi I Made Gita
Published: March 2023

Road pavement is a layer structure located above the subgrade, there is a layer of upper foundation and sub-base which each layer consists of compacted aggregates which have a function to transmit stress due to wheel load. There are 3 road pavements, asphalt or flexible pavement, concrete/ rigid pavement (rigid pavement) and composite pavement (Composit pavement). In determining pavement thickness there are several methods to use, including in this study using the 1993 AASHTO method for flexible pavements and the 2017 Road Pavement Manual method (Bina Marga 2017) for rigid pavements. The location of this research is located on Jalan Celukan Bawang – Pelabuhan, Kec. Gerokgak, Kab. Buleleng. This final project aims to determine the comparison of flexible pavement thickness using the 1993 AASHTO method compared to rigid pavement using the 2017 Highways method and the comparison of implementation costs and maintenance costs on flexible0pavement0and rigid pavement0with0a design life of 10 years. From the results of calculations that have been carried out, the 1993 AASHTO method produces a total thickness of 61 cm with an implementation cost of Rp. 2.363.603.825,33 and maintenance costs of Rp 118.180.191,27, and the 2017 Road Pavement Manual method produces a total thickness of 54.5 cm with an implementation cost of Rp.5.230.581.646,07 and maintenance costs of Rp. 261.529.082,30. From the results obtained, flexible pavement using the 1993 AASHTO method has agreate thickness with lower implementation and maintenance costs than rigid pavement using the 2017 Road Pavement Manual method.
Analisa Perbandingan Volume dan Biaya Bar Bending Schedule dengan Metode SNI-2847:2013 dan BS 8666:2005 (Studi Kasus: Proyek Pembangunan Kantor Pacto, Denpasar-Bali)
Authors: Jayantari Made Widya , Dewi Putu Surya Triana , Yoga Putu Gede Anggara
Published: March 2023

The success of construction projects, especially in the construction of multi-storey buildings is influenced by material components. Therefore, optimizing material planning is important to do. In the Pacto Sanur Building construction project, optimization of material planning is viewed from the ironing work because it costs a relatively large amount compared to other works. The purpose of this study is to analyze the comparison of bar bending schedules on projects using the British Standard 8666:2005 and SNI-2847:2013 methods, then to identify project cost comparisons. From the results of the identification of iron planning using the SNI-2847:2013 method, it can be seen that the weight of Ø16 iron = 3971.00 kg, the weight of Ø13 iron = 251.51 kg, and the weight of Ø10 iron = 7034.38 kg. Furthermore, in the identification of repair plans using the British Standard 8666:2005 method, it can be seen that the weight of iron Ø16 = 42153.22 kg, the weight of iron Ø13 = 280.95 kg, and the weight of iron Ø10 = 7343.58 kg. The volume optimization for Sloof, Beams, Columns, and Floor Plates II uses the British Standard 8666: 2005 method of 47% with the total cost of the SNI-2847:2013 method ironwork Rp. 202,623,928 and the total cost of repair work using the British Standard 8666:2005 method is Rp. 213,799,435.
CALIBRATION OF REGRESSION-BASED MODELS FOR PREDICTION OF TEMPERATURE PROFILE OF ASPHALT LAYERS USING LTPP DATA
Authors: Sedighian-Fard Mohammad , Solatifar Nader , Sivilevičius Henrikas
Published: March 2023

For analysis, design, and rehabilitation purposes of flexible pavements, the temperature profile of asphalt layers should be determined. The predictive models as an alternative to in-situ measurements, are rapid and easy methods to determine the temperature of asphalt layer at various depths. These models are developed based on limited field data. Hence, there is a need for developing new models for prediction of temperature profile of asphalt layers in various climatic regions. In this study, climatic data was retrieved from the Long-Term Pavement Performance (LTPP) database. The information of 33 asphalt pavement test sections in 16 states in the United States was employed for calibrating the predictive models. Using the prepared data, the temperature profile of asphalt layers was predicted utilizing four regression-based models, including Ramadhan and Wahhab, Hassan et al., Albayati and Alani, and Park et al. models. Existing prediction models were calibrated, and to predict the temperature profile of asphalt layer, new models were developed. Performance evaluation and validation of newly developed models showed an excellent correlation between predicted and measured values. Results show the ability of the developed models in predicting the temperature profile of asphalt layers with very good prediction precision (R2 = 0.94) and low bias.
ANALYSIS OF REINFORCEMENT PRESTRESSING IMPACT ON THE BEARING CAPACITY OF THE DAPPED-ENDS
Authors: Masėnas Vilius
Published: March 2023

The article analyzes a prestressed reinforced concrete dapped-end beam of a rectangular cross-section. The negative effect of reinforcement prestressing on the bearing capacity of the dapped-end is analyzed. The numerical beam model is made based on an experiment and a nonlinear analysis is performed using the DIANA FEA software package to determine the effect of different intensity of reinforcement prestressing on the bearing capacity of the dapped-end beam. The results are compared with analytical calculations and the behavior described in the literature. The prestressing of the reinforcement is shown to reduce the bearing capacity of the dapped-end when tensioned reinforcement is not extended to the end of the beam above the notch. The load capacity of the numerical model is reduced by 9.67% and reduced by 25% based on analytical calculations. When designing dapped-end beams, it is necessary to assess the effect of reinforcement prestressing on the bearing capacity and cracking.
Determining the IBEX Ribbon Transverse Profile from ENA Temporal Variations: A Proof of Concept for IMAP Observations
Authors: Dayeh M. A. , Zirnstein E. J. , McComas D. J.
Published: March 2023

Since its discovery in 2009, the IBEX energetic neutral atom (ENA) Ribbon has been a subject of numerous studies. It appears at energies ∼0.5–6 keV and is most pronounced at ∼1–3 keV. It is almost circular, ∼20°–40° wide, and its center lies near the pristine local interstellar magnetic field direction, whose field lines are draped around the heliosphere. The Ribbon intensity is enhanced above the more diffuse, globally distributed flux (GDF) and varies on timescales that are delayed compared to the underlying and slowly varying GDF. We present a novel method to infer the Ribbon boundaries and transverse profile of the Ribbon using sequential time variations of ENA fluxes, with minimal modeling assumptions involved. The method utilizes the difference in temporal evolution between the total Ribbon content and GDF fluxes. We then use the inferred Ribbon transverse profile to statistically quantify the GDF contribution to the observed peak Ribbon intensity to be ∼32.23% ± 3.15% in 2009–2011. This Ribbon separation method works best during times of gradual changes in solar wind output, and with high angular resolution and ENA counting statistics; results thus provide a proof of concept for the upcoming Interstellar Mapping and Acceleration Probe ENA measurements.
Soil centipedes (Chilopoda, Geophilomorpha) in the Val Camonica forests (Southern Alps): species composition and richness
Authors: Magnolini Roberto , Bonato Lucio
Published: March 2023

Soil centipedes (Chilopoda, Geophilomorpha) are a widespread group of predators in the forest soils of the European Alps. While in the Eastern and Western Prealps important efforts were devoted to better understand geophilomorph fauna, little is known about species composition of the central part of Southern Prealps. In this work, 5 sites located in the Val Camonica were surveyed by hand searching between November 2021 and July 2022. Species richness was estimated applying non-parametrical statistical methods (Chao-1 and Abundance-based Coverage Estimator) to account for incomplete detection. A total of 18 species were found. A maximum of 12 species were recorded in a single site, while estimates suggest that other 1-3 species were likely undetected. By comparing the communities, species composition were found variable also between sites with similar species richness.
Geastrum suae sp. nov. (Geastraceae, Basidiomycota) a new species from Yunnan Province, China
Authors: Zhang Zheng-Quan , Li Chao-Hai , Li Lin , Shen Hong-Wei , He Jun , Su Xi-Jun , Luo Zong-Long
Published: March 2023

Geastrum is the largest genus of Geastraceae and is widely distributed all over the world. Four specimens which belong to Geastrum were collected during our scientific expedition to Cangshan Mountain, Yunnan, China. Based on morphological characteristics and phylogenetic analysis, a new species was introduced.

Geastrum suae is characterised by its large basidiomata (height 35–70 mm, diameter 18–37 mm) with long stipe (height 10–45 mm), smooth pink exoperidium and sessile globose endoperidial body. Phylogenetic analysis has been carried out, based on the internal transcribed spacer (ITS) and large subunit ribosomal ribonucleic acid (nrLSU) sequence data. The illustration and description for the new taxa are provided.
Diversity of culturable thermophilic bacteria from Tata Pani hotspring of Kotli Azad Jammu and Kashmir
Authors: Ishaq Kazima , Shah Asad , Fariq Anila , Rasheed Sajida , Jannat Sammyia
Published: March 2023

Hot water springs are unique areas populated by mesophiles, thermotolerant and hyperthermophiles. They are the source of diversity of thermophiles, mainly belonging to archaea and bacteria domains. The diversity of thermophiles gives an outline of the huge biological potential that can be exploited for industrial applications.To this end, this study was aimed to isolate and characterise the unexplored thermophilic microorganisms from hot water spring in Tatapani, Tehsil & District Kotli AJK, Pakistan. Around 10 bacterial isolates were identified using morphological, biochemical, physiological and molecular attributes. Sequencing of the 16S rDNA gene of the isolates followed by BLAST search revealed that the strain MBT008 has 100% similarity with Anoxybacillus kamchatkensis. MBT012 showed 99.57% similarity with A. mongoliensis, MBT014 was affiliated with A. tengchongensis with 99.43% similarity, MBT009 showed 99.83% homology with A. gonensis and MBT018, 98.70% similarity with A. karvacharensis. The presence of all this microbial diversity in one common source is of immense importance related to envioronmental and industrial aspects in general and extraction of thermostable enzymes from these thermophiles specifically opens new horizons in the field of industrial biotechnology. These thermophiles are revealing new capabilities and are being manipulated by biotechnologists in utilizing them in different unique ways.
Structured conditioning theory for the total least squares problem with linear equality constraint and their estimation
Authors: Samar Mahvish , Zhu Xinzhong
Published: March 2023

This article is devoted to the structured and unstructured condition numbers for the total least squares with linear equality constraint (TLSE) problem. By making use of the dual techniques, we investigate three distinct kinds of unstructured condition numbers for a linear function of the TLSE solution and three structured condition numbers for this problem, i.e., normwise, mixed, and componentwise ones, and present their explicit expressions under both unstructured and structured componentwise perturbations. In addition, the relations between structured and unstructured normwise, componentwise, and mixed condition numbers for the TLSE problem are investigated. Furthermore, using the small-sample statistical condition estimation method, we also consider the statistical estimation of both unstructured and structured condition numbers and propose three algorithms. Theoretical and experimental results show that structured condition numbers are always smaller than the corresponding unstructured condition numbers.
A piecewise homotopy Padé technique to approximate an arbitrary function
Authors: Semary Mourad S. , Fareed Aisha F. , Hassan Hany N.
Published: March 2023

The Padé approximation and its enhancements provide a more accurate approximation of functions than the Taylor series truncation. A new technique for approximating functions into rational functions is proposed in this paper. This technique is based on the homotopy Padé technique and introduces new parameters known as merging parameters. These parameters are added to the Tayler series before the Padé process is computed. To control error, the merging parameters and dividing the interval into subintervals are used. Two illustrative examples are used to demonstrate the validity and reliability of the proposed novel approximation. The robustness and efficiency of the proposed approximation were demonstrated by computing the absolute error and comparing the results to those of the standard Padé technique and the generalized restrictive Padé technique. Also, Hard-core scattering problem and Debye-Hukel function are tested by the proposed technique. The piecewise homotopy Padé method is an excellent path to approximate any function. The proposed new approximation's efficacy and accuracy have been validated using Mathematica 12.
Large time behavior of the Euler-Poisson system coupled to a magnetic field
Authors: Chen Yingying , Huang Lan , Yang Jianwei
Published: March 2023

In this paper, the large time behavior of globally smooth solutions of the Cauchy problem for the three dimensional Euler-Poisson system of compressible fluids coupled to a magnetic field is studied. We prove that the smooth solutions (near a given constant equilibrium state) of the problem converge asymptotically to a stationary solution exponentially fast as $ t $ goes to $ \infty $.
Zdravstvena pismenost u Republici Hrvatskoj
Authors: Bobinac Ana , Dukić Samaržija Nikolina , Ribarić Elizabeta
Published: March 2023

Research shows that low levels of health literacy have negative consequences for the health of the individual and the community. The aim of the research is to establish the average level of health literacy in Croatia on a nationally representative sample and to identify characteristics that can be linked to particularly low levels of health literacy. The results show that the level of health literacy in Croatia, on average, is at the very border between problematic and adequate. Within the population, however, there are significant differences in the level of health literacy associated with the class, economic and social characteristics of individuals. Lower health literacy reflects in an individual‘s reluctance to respond to preventive screenings, keep weight below obesity levels, or exercise regularly. Our results suggest that raising the level of health literacy in Croatia should not rely primarily on media campaigns, because health information from the media is difficult for citizens to understand and use for the purpose of protection against diseases. Key words: health literacy, HLS-EU-16, public health.
Threat Analysis in IOT Network Using Evolutionary Sparse Convolute Network Intrusion Detection System
Authors: Alaa Q. Raheema
Published: March 2023

Internet of Things (IoT) played a crucial role in various sectors such as automobiles and the logistic tracking medical field because it consists of distributed nodes, servers, and software for effective communication. Although, this IoT paradigm suffered from intrusion threats and attacks that cause security and privacy issues. Existing intrusion detection techniques fail to maintain reliability against the attacks. Therefore, in this work, IoT intrusion threat has been analyzed by using the sparse convolute network to contest the threats and attacks. The network is trained using sets of intrusion data, characteristics, and suspicious activities, which helps identify and track the attacks, mainly Distributed Denial of Service (DDoS) attacks. Along with this, the network is optimized using evolutionary techniques that identify and detect the regular, error, and intrusion attempts under different conditions. The sparse network forms the complex hypotheses evaluated using neurons, and the obtained event stream outputs are propagated to further hidden layer processes. This process minimizes the intrusion involvement in IoT data transmission. The effective utilization of training patterns in the network classifies the standard and threat patterns successfully. Then the effectiveness of the system is evaluated using experimental results and discussion.
Burgueses e nobres: imaginários e modos de vida em Copacabana e Petrópolis
Authors: Corbo William , Rocha Everardo , Feix Isabel
Published: March 2023

Este trabalho analisa como, nas décadas de 1940, 1950 e 1960, a elite brasileira experimentava hábitos burgueses em Copacabana e, nas férias de verão, finais de semana e feriados, vivenciava aspectos de  um estilo de vida de nobres em Petrópolis. No bairro da Zona Sul do Rio de Janeiro, as novidades de entretenimento e consumo proporcionavam ares cosmopolitas; nas serras do estado, a recuperação de espaços históricos e a retomada de símbolos aristocráticos remetiam ao passado imperial. Realizamos entrevistas com informantes que moraram ou frequentaram as duas localidades e analisamos reportagens e anúncios de duas importantes publicações da época: o jornal O Globo e a revista O Cruzeiro. Em suma, este estudo revela as formas pelas quais uma ideologia que projetava a imagem do Brasil como uma grande communitas (DaMatta, 1973) possibilitou uma resposta particular à ambiguidade típica do mundo moderno entre burgueses e nobres: viver ora uma coisa, ora outra; burgueses em Copacabana, nobres em Petrópolis
A Fundação Getúlio Vargas em perspectiva histórica: intelectuais orgânicos e ação política (décadas de 1940-1960)
Authors: Brasil Rafael
Published: March 2023

O artigo analisa as condições históricas que ensejaram, em 1944, a organização da Fundação Getúlio Vargas (FGV), entidade de interesse público regulada por um regime jurídico de direito privado, graças à mobilização de intelectuais, agentes estatais e segmentos do empresariado nacional. A FGV e seus intelectuais integraram uma ampla rede de forças sociais engajadas nas tarefas de “modernização-conservadora” do capitalismo brasileiro ao longo das décadas de 1940 e 1960, forjando propostas de intervenção político-econômica e constituindo articulações sociais necessárias para a sua realização. Por conseguinte, a pesquisa examinou a documentação oficial produzida pela própria FGV e os materiais elaborados pelos intelectuais conectados à instituição e depositados no Arquivo Nacional e no Centro de Pesquisa e Documentação de História Contemporânea do Brasil (CPDOC). A longa formação político-profissional desse grupo e a abrangente rede de relacionamentos costurada em agências governamentais, aparelhos privados de hegemonia e círculos empresariais-militares viabilizaram um posicionamento ideológico e um senso de ação política comum, expressos na concepção e disseminação de projetos hegemônicos para o desenvolvimento do capitalismo na periferia do sistema mundial.
A espacialidade arqueológica vista entre Paraná e São Paulo para complexos tecnológicos Umbu, Itararé e Tupi-Guarani através de análises georreferenciadas
Authors: De Souza Tatiane , Rizzi Carlos Alberto
Published: March 2023

Resumo: A identificação de vestígios de mudanças e contato entre grupos considerados culturalmente distintos e pertencentes a tradições arqueológicas diferentes tem como pano de fundo a discussão da Arqueologia de Contato. Pode ter havido um importante fluxo de informações entre estes grupos e relações que estão por serem esclarecidas de diversas formas, sendo aqui abordadas por meio de estudos espaciais. Baseiam-se em informações secundárias através de mapeamento em larga escala, compilando e processando dados reunidos para observar a distribuição espacial de complexos tecnológicos Umbu, Itararé e Tupi-Guarani na área de fronteira entre Paraná e São Paulo. Os mapas foram produzidos a partir de dados recolhidos em pesquisas bibliográficas efetuadas em arquivo público do Instituto do Patrimônio Histórico e Artístico Nacional (IPHAN) ou coletados em teses que produziram dados sobre a área propriamente dita. A conclusão é de que podemos, através destas informações, observar três tipos de comportamentos conforme o tipo de interação entre os grupos. No primeiro caso, as situações são de aglomerações; no segundo, os grupos estão em contato contínuo, e, no terceiro, estão em isolamento.
Escravidão africana na Índia portuguesa: Goa nos séculos XVI e XVII
Authors: Hofbauer Andreas
Published: March 2023

O artigo procurar mostrar como, paralelamente ao surgimento de uma sociedade escravista no Brasil, a intervenção colonial portuguesa na Índia levou igualmente à constituição de uma sociedade marcada pela presença escrava. Busca-se não apenas apontar para as múltiplas convergências e semelhanças, mas procura-se entender também aqueles contextos e práticas que diferenciavam o fenômeno da escravidão de Goa daquele conhecido do Novo Mundo.
Occipital artery based myocutaneous flap repair for cochlear implant extrusion- How I do it
Authors: Kumara S. P. P. , Jayasena K. D. N. U. D. , Rajapaksha R. P. T. , Ethulgama H. M. S. B.
Published: March 2023

Introduction: Cochlear implant extrusion is a challenging complication to manage. It needs meticulous planning, antibiotic cover and a good vascularized tissue covering. Occipital artery based myocutaneous flap is used to cover tissue defects in neurosurgery and oncosurgery practice and the results are widely accepted. In ENT practice we can safely utilize this versatile and reliable flap to achieve good tissue cover over an extruded cochlear implant.
Objective: To improve confidence and share experience to achieve better outcomes when dealing with complications after cochlear implantation.
Method: Occipital artery based flap is used to cover the tissue defects as an axial flap over the exposed implant after antibiotic cover, with the Consultant microbiologist’s guidance to overcome biofilm resistance and a through wound debridement.
Results: Good healing achieved with a thick scalp skin cover.
Conclusion: In ENT practice we can safely utilize this versatile and reliable flap to achieve good tissue cover over an extruded cochlear implant.
Mapping bathymetry and shallow water benthic habitats in inland and coastal waters with Sentinel-2
Authors: Argus Laura , Kutser Tiit , Paavel Birgot , Ligi Martin , Giardino Claudia , Bresciani Mariano , Möller Tiia
Published: March 2023

Accurate determination of the water depth and benthic macroalgae composition in coastal and inland water bodies is important due to the high commercial and ecological value of these regions. Benthic habitat mapping by conventional methods provides good accuracy, but these methods are very expensive and limited by manpower and time factor, which is necessary for mapping large areas. Remote sensing methods significantly complement contact measurements and give additional information about the hard-to-reach areas. The usefulness of free Sentinel-2 data in bathymetry and habitat mapping has been demonstrated in clear oceanic waters. The aim of this study was to further test the suitability of Sentinel-2 imagery in creating maps of dominant benthic types, as well as in estimating bathymetry in optically complex marine and lake waters. Two study sites were selected to cover a representative range of optical variability - Lake Garda in northern Italy (an intermediate between clear ocean and optically very complex waters) and Viimsi peninsula on the Estonian side of the Gulf of Finland, in the Baltic Sea. The results show that Sentinel-2 imagery with 10 m spatial resolution is suitable for bathymetry and habitat mapping in optically complex inland and coastal waters. Our results show that bathymetry mapping is sufficiently accurate in waters less than 4 m deep in the case of the Baltic Sea and up to 7 m deep in Lake Garda.  In such depths, the R2 was above 0.93 in all four Sentinel-2 images used in the study. Bottom type mapping accuracy was in all cases over 73%, which is considered to be good, but due to the limited number of sampling points in both test sites, further studies are needed. The Sentinel-2 data quality and no cost of the imagery for users make it very useful for mapping bathymetry and shallow water habitats over large coastal areas or high number of lakes, especially in hard to reach by in situ methods areas. Moreover, the frequent revisit time allows moving from one-off maps to monitoring of temporal changes happening in dynamic shallow inland and coastal waters.
Changes in health behaviors and obesity of Korean adolescents before and during the COVID-19 pandemic: a special report using the Korea Youth Risk Behavior Survey
Authors: Oh Chang-Mo , Kim Yangha , Yang Jieun , Choi Sunhye , Oh Kyungwon
Published: March 2023

OBJECTIVES: This study aimed to investigate changes in health behaviors, including cigarette smoking, alcohol drinking, physical activity, dietary behaviors, and obesity, before and during the coronavirus disease 2019 (COVID-19) pandemic using the Korea Youth Risk Behavior Survey (KYRBS) database.METHODS: KYRBS data from 2015 to 2021 were used in this study. Differences in health behaviors between before (pre-pandemic period: 2018-2019) and during (pandemic period: 2020-2021) the pandemic were examined. Differences were compared using linear regression and the chi-square test considering the complex survey design after adjusting for grade level.RESULTS: The prevalence of current cigarette smoking and current alcohol drinking significantly decreased in both male and female students during the pandemic compared to the pre-pandemic period. However, the prevalence of obesity significantly increased in both male and female students during the same period. When examining physical activity and dietary behaviors closely related to obesity, fast food consumption increased and fruit consumption decreased during the pandemic in both male and female students, whereas no significant changes in physical activity were observed in either male or female students.CONCLUSIONS: The deterioration of adolescent dietary behaviors and an increase in the prevalence of obesity can increase the future disease burden, and concerted efforts at the individual and national levels are needed to reduce obesity and promote healthy dietary behaviors.
Multi‐Stage CMOS OTA Frequency Compensation: Genetic algorithm approach
Authors: Bandari Mohammad Ali , Tavakoli Mohammad Bagher , Setoudeh Farbod , Dousti Massoud
Published: March 2023

Multistage amplifiers have become appropriate choices for high‐speed electronics and data conversion. Because of the large number of high‐impedance nodes, frequency compensation has become the biggest challenge in the design of multistage amplifiers. The new compensation technique in this study uses two differential stages to organize feedforward and feedback paths. Five Miller loops and a 500‐pF load capacitor are driven by just two tiny compensating capacitors, each with a capacitance of less than 10 pF. The symbolic transfer function is calculated to estimate the circuit dynamics and HSPICE and TSMC 0.18 μm. CMOS technology is used to simulate the proposed five‐stage amplifier. A straightforward iterative approach is also used to optimize the circuit parameters given a known cost function. According to simulation and mathematical results, the proposed structure has a DC gain of 190 dB, a gain bandwidth product of 15 MHz, a phase margin of 89°, and a power dissipation of 590 μW.
Interesting updates to the flora of the Neretva River delta (south Croatia) with the emphasis on aquatic plants
Authors: Vuković Nina , Alegro Antun , Rimac Anja , Marić Tihana , Koletić Nikola , Šegota Vedran
Published: March 2023

While working on several projects dealing with the flora of Neretva River delta in south Croatia, interesting floristic discoveries were made. During fieldtrips, freshwater habitats (rivers, channels and lakes) were in the focus of the survey, and were studied in detail both from the boat and from the mainland. Altogether 69 plant taxa were recorded and are presented in the results, out of which 25 taxa associated with aquatic habitats (hydrophytes, helophytes and species of riparian habitats) were discussed in more detail. These taxa are rare, threatened, invasive, newly found or otherwise seen as important for the studied area and their distribution maps are also presented.
Renewal in Educational Spaces as a Relational Aspect: Making Way for a New Culture of Reasoning Innovation and Sustainability
Authors: Molomo Pulane Adelaide
Published: March 2023

Educational spaces have long been situated in repressive, non-relational and detached conditions that have been damaging to the geopolitical, socio-economic, and environmental balance. The paper reports on the effectiveness of educational spaces when characterised by an ethical relationship between human and nonhuman elements as a collaborative measure to solve earthly problems. The purpose was to highlight the role of education in producing innovative, honest, and critical thinkers who can apply knowledge to navigate relational intricacies. Qualitative data was generated from literature and a purposively sampled respondent group of eight lecturers and twelve students in a South African university, using interviews and focus group discussions. Data was categorised and analysed into themes. It was found that a pedagogical encounter which enabled students to engage in activities that deepened their knowledge of how the world works in totality gave them opportunities to understand the balancing effect of relational aspects when solving problems. This study proposes a renewal in thinking about other beings and things in educational spaces toward understanding the relational interaction brought by scientific and technological advancements that impact on human and nonhuman agents. The implication is that the world needs people to become innovators, think holistically and build a synergy between things and humanity. The study proposes that educational spaces should develop consciousness and ethical behaviour to sustain the relationship between human and nonhuman agents, which has implications for innovation and new practices that will sustain the world.
Teachers’ Perceptions of Integrating Technology in Rural Primary Schools to Enhance the Teaching of English First Additional Language
Authors: Maja Margaret Malewaneng
Published: March 2023

Teachers’ perceptions of integrating technology in rural primary schools play a substantial role in the Intermediate Phase (grades 4 to 6) in enhancing the teaching of English first additional language (EFAL). However, in a country such as South Africa, teachers experience barriers such as time constraints, load shedding, a lack of facilities, a lack of digital skills and an internet connection which challenges the incorporation of technology in language lessons in this posthumanism era. This study explored teachers’ perceptions of integrating technology in EFAL classes in rural primary schools in Limpopo, South Africa. There are several studies on how teachers feel about using technology in secondary schools and higher education, but only a few have concentrated on rural primary schools specifically the Intermediate Phase. Therefore, this area deserves further investigation to add to empirical data. An interpretivist paradigm guided this study informed by the technology acceptance model (TAM). An exploratory qualitative case study used semi-structured interviews for data gathering. Ten Intermediate Phase EFAL teachers were selected with the help of purposeful sampling. Using thematic analysis, the obtained data were categorized into codes and themes. It was found that teachers are willing to use technology to teach EFAL as it has revolutionized their teaching and appreciated its productivity in their teaching activities. It is advised that EFAL teachers receive additional in-service training on integrating technology into EFAL teaching. The acquired skills from the training may assist in time management and how to cope working with limited resources.
TOPLUMDA ANTİBİYOTİK KULLANIMI: BOLU İLİNDEN BİR KESİT
Authors: TOKUR KESGİN Makbule , ZENGİN Seher , ÇAĞLAR Songül
Published: March 2023

Amaç: Antibiyotiklerin aşırı ve uygunsuz kullanımı günümüzde toplum sağlığını tehdit eden bir boyuta ulaşmıştır. Bu sebeple toplumda antibiyotik kullanım düzeyinin ve uygun olmayan antibiyotik kullanımının varlığının belirlenmesi önemlidir. Bu araştırma, XXX yaşayan kişilerin antibiyotik kullanım düzeyinin belirlenmesi amacıyla gerçekleştirilmiştir.

Araçlar ve Yöntem: Araştırma toplum temelli, kesitsel bir çalışmadır. Araştırmanın evrenini il merkezindeki 23 mahallede yaşayan kişiler oluşturdu. Örneklem büyüklüğü 584 olarak belirlendi. Örneklem büyüklüğüne ulaşmak için basit rastgele yöntem ile üç mahalle seçildi. Bu mahallerden nüfus yoğunluğuna göre tabakalı seçim yöntemi ile katılımcılar belirlendi. 47 kişi araştırmaya katılmayı kabul etmediği için toplam 537 kişiyle araştırma tamamlandı. Araştırmanın verileri Haziran 2017- Mart 2018 tarihleri arasında araştırmacılar tarafından literatür taraması ile oluşturulan anket formu ile toplandı.

Bulgular: Katılımcıların %73.0’ı kadın ve %63.7’si evlidir. Katılımcıların büyük çoğunluğu (%80.6) son bir ay içerisinde antibiyotik kullanmış ancak %78.2’si antibiyotik kullanımını yarıda bırakmıştır. Antibiyotik kullanımın yarıda bırakılmasının en sık sebebi iyileşme düşüncesidir (%67.4). Yarıda bırakılan antibiyotiklerin ise %39.7’si daha sonra kullanmak için saklanmaktadır. Katılımcıların %66.2’si antibiyotiklerin kullanım amacının enfeksiyon hastalıklarını tedavi etme olduğunu belirtmiş ve %37.2’si antibiyotik olan ilaçları doğru ifade edebilmiştir. Katılımcıların %35.8’i antibiyotik hakkındaki bilgiyi doktordan almıştır. Kadın ve memur olmak antibiyotik kullanımı açısından risk taşımaktadır, p
Management of duodeneal perforation due to toothpick ingestion
Authors: AY Oğuzhan Fatih , ARICI Sinan
Published: March 2023

Ingestion of foreign body is one of the major cause of serious morbidity and mortality in gastrointestinal system . A 47-year-old male patient attended to the emergency department complaining of abdominal pain for about two days duration. On physical examination of the patient, tenderness was observed in right flank region. Computed tomography examination revealed a foreign body that had impacted the third part of the duodenum and perforated and extended to the retroperitoneal structures..

Afterwards, semi-elective laparotomy was decided and the foreign body was removed under bleeding control. The perforated area in the 3rd part of the duedonum was primarily repaired and omentopexy was performed. The patient was discharged on the 6th day without any problem in the postoperative follow-up.

Gastrointestinal foreign body ingestion treatment approach should be determined according to the characteristic of the object, its proximity to the anatomical structures and the clinic..
ŞIRNAK İLİ BİRİNCİ TRİMESTER PRENATAL TARAMA TESTİ GÜNCEL MEDYAN VERİLERİNİN DEĞERLENDİRİLMESİ
Authors: TAHİROĞLU Veysel , ALAYUNT Naci Ömer , COŞKUN Erkam
Published: March 2023

Amaç: Şırnak ilinde gebelerde birinci trimester dönemi içerisinde yapılan tarama testlerinde kullanılan hormon düzeylerinin güncel medyan değerlerinin, hormon cihazlarında kullanılan standart yazılımların medyanları ile mukayese edilerek aralarındaki farklılıkları ortaya koymayı amaçladık.

Gereç ve Yöntem: Çalışmada hastane izin ve etik kurul onayı alındıktan sonra 01/05/2021-01/05/2022 tarihleri arasında Şırnak İlinde hastaneye başvuran 301 gebenin verileri prenatal ikili tarama testi ölçümleri hastane veri tabanından çekilerek kullanıldı. Gebelerin beta-human koryonik gonadotropin (β-hCG), gebelikle ilişkili plazma protein A (PAPP-A) ve demografik verileri kayıt altına alındı. Cihaz yazılımı tarafından hesaplanan medyan değerlerine göre bulunan MoM düzeyleri ile programa girilen haftalık medyan düzeylerine göre hesaplanmış medyanların katları (MoM) karşılaştırılmıştır.

Bulgular: Güncel medyan düzeyleri, free β-HCG’nin 11. 12. ve 13. gebelik haftalarının tarama testlerinde kullanılan medyan düzeylerinden anlamlı olarak farklı ve düşük seviyelerde bulunmuştur (p
Subverting Telegram’s End-to-End Encryption
Authors: Cogliati Benoît , Ethan Jordan , Jha Ashwin
Published: March 2023

Telegram is a popular secure messaging service with third biggest user base as of 2021. In this paper, we analyze the security of Telegram’s end-to-end encryption (E2EE) protocol in presence of mass-surveillance. Specifically, we show >that Telegram’s E2EE protocol is susceptible to fairly efficient algorithm substitution attacks. While official Telegram clients should be protected against this type of attack due their open-source nature and reproducible builds, this could potentially lead to a very efficient state sponsored surveillance of private communications over Telegram, either on individuals through a targeted attack or massively through some compromised third-party clients. We provide an efficient algorithm substitution attack against MTProto2.0 — the underlying authenticated encryption scheme — that recovers significant amount of encryption key material with a very high probability with few queries and fairly low latency. This could potentially lead to a very efficient state sponsored surveillance of private communications over Telegram, either through a targeted attack or a compromised third-party app. Our attack exploits MTProto2.0’s degree of freedom in choosing the random padding length and padding value. Accordingly, we strongly recommend that Telegram should revise MTProto2.0’s padding methodology. In particular, we show that a minor change in the padding description of MTProto2.0 makes it subversion-resistant in most of the practical scenarios. As a side-effect, we generalize the underlying mode of operation in MTProto2.0, as MTProto-G, and show that this generalization is a multi-user secure deterministic authenticated encryption scheme.
Should We Stay or Should We Go? MNE Decisions to Withdraw or Remain during Geopolitical Crises
Authors: DeBerge Thomas
Published: March 2023

Geopolitical crises can create conflicting obligations for MNEs operating in now-hostile host countries, often requiring a strategic balance between home-country pressures to exit and the importance of continuing business in the present or retaining the option to re-enter business in the future. To identify such strategies and the country- and firm-specific characteristics informing such strategic decisions, I draw lessons from business history and an analysis of ongoing MNE responses to Russia’s invasion of Ukraine to provide insights into two specific options which managers can employ: namely, leveraging home country neutrality and relying on local partners to steward host-country operations. I also suggest steps managers can take to build resiliency for their MNEs in the event of future geopolitical crises.
Ferramentas analíticas e numéricas para a descrição da secagem de produtos agrícolas - fase final
Authors: De Aguiar Márlius Hudson , da Silva Wilton Pereira
Published: March 2023

Simular um processo de secagem, com base em estudos teórico-experimentais. Este é o objetivo deste projeto, que utiliza a linguagem de programação Fortran e um estúdio de programação visual, chamado Compaq  Visual Fortran, para criar um software, na  plataforma Windows, com interface de comunicação com o usuário, que simula o processo de secagem de bananas inteiras, usando como base o material desenvolvido na fase anterior deste mesmo projeto (Ferramentas Analíticas e Numéricas para a descrição de Secagem de Produtos Agrícolas - Fase II) , que fornece as equações de discretização de um volume finito em formato cilíndrico, por meio do Método dos Volumes Finitos, com condição de contorno do terceiro tipo e formulação totalmente implícita. Por fim, os resultados da simulação são comparados com dados experimentais, também obtidos na etapa anterior, para validação de sua eficiência.
ENVIRONMENTALLY SAFE LIQUID LUBRICANT FOR THE SAW CHAINS BASED ON THE COMBINED DISPERSION MEDIUM
Authors:   LLC “Eurasia Lubricants”, ZAPOLSKY Andrey V. , ZHORNIK Viktor I. ,   Joint Institute of Mechanical Engineering of the NAS of Belarus
Published: March 2023

The realization of the synergistic effect is shown on the example of creating of the composite liquid lubricant with improved properties using the combined dispersion medium obtained by mixing of the vegetable and mineral oils. The lubricant for the saw chains and the method of its production are developed. The highly purified mineral oil of group III of the NS-4 brand is added to the rapeseed oil in the amount of 20.0…25.0 wt.%, and the complex of the calcium sulfonate with calcium carbonate in the amount of 1.5…2.0 wt.% is used as a multifunctional additive in the manufacture of this lubricant. The developed lubricant has the following characteristics: kinematic viscosity at 40 °C — 61…63 mm2/s; solidification temperature is –29 °C; flash point — 242…246 °C; welding load — 2,764 N; wear index — 0.39…0.41 mm; mass fraction of free organic acids — 1.3...4.7 mg KOH/g; degree of biodegradability — 88–89 %; warranty period of storage in an open container — 12 months.
Evaluation of the elderly people satisfaction with social programs of active longevity, on the example of the city of Moscow
Authors: Manshina A. V. , Valieva N. R. , Butareva M. M. , Israilyan Z. E.
Published: March 2023

The aging of the population is a new global problem, which attracts much attention in many countries: the strategies and programs aimed at maintaining the health of people over working age are being developed and implemented.

Aim. Due to the increasing part of the elderly in the total population and the number of state programs implemented in the Russian Federation to support them, it is interesting to evaluate the satisfaction of this target group with active longevity program on the example of the Moscow Longevity Center program.

Materials and methods. The object of the study was the population of retirement age in the South-eastern administrative District (Marjino, Kapotnya) of Moscow. The site was the territorial social centers of the South-Eastern Administrative District of Marjino, Kapotnya. The subject of the study was state social programs for citizens of retirement age. The questionnaire, including 15 closed and 1 open question was created in order to study the satisfaction of citizens of retirement age with active longevity programs.

Results. Social programs for active longevity have a positive effect on citizens of retirement age, which affects their wellbeing, physical and social activities, and also encourages the population to maintain a healthy lifestyle.

Conclusion. The study showed that state social programs of supporting citizens of retirement age are an example of effective interagency cooperation, they contribute to improving the quality of the active life of older people and should be actively developed and implemented throughout the Russian Federation.