bluuebunny/crossref_metadata_2025 huggingface dataset:
Niet-invasieve prenatale test bij meerlingzwangerschappen: een retrospectieve analyse van de distributie van de foetale fractie
Authors: Biesemans Y. , Roets E. , Baetens M. , Roelens K. , Menten B.
Published: February 2023

Noninvasive prenatal testing in multiple pregnancies: retrospective analysis of the fetal fraction distribution

This article describes the distribution of the fetal fraction (FF) in noninvasive prenatal testing (NIPT) in multiple pregnancies. A retrospective study of 514 NIPT experiments was performed in 484 women with an (originally) multiple pregnancy from January 1st, 2017 to December 31st, 2019 at the Center for medical genetics in Ghent (Belgium).

The FF distribution in vanishing twin, twin and triplet pregnancies was significantly different with a mean of 14%, 18.1% and 23.7% respectively. Test failure due to a low FF was higher in dichorionic-diamniotic (DCDA) twins (9.5%) compared to monochorionic-diamniotic (MCDA) twins (0%). The mean ratio FF based on the Y-chromosome (FFY)/total fetal fraction in male-male pregnancies was 0.96, in male-female pregnancies 0.43 and in female-female pregnancies 0.0. In vanishing twin pregnancies, the duration of persistence of cell-free fetal DNA (cffDNA) from the demised cotwin was up to 7 weeks.

Test failure due to a low FF seems to appear more frequently in DCDA twins compared to MCDA twins, which could be explained by the higher FF threshold in DCDA twins (8%) in comparison to MCDA twins (4%). In mixed pregnancies, on average each fetus seems to contribute equally to the FF, although this does not seem to apply to all mixed pregnancies, giving rise to the possibility of an unequal contribution and a higher risk of a false negative result.
Risk Factors of Pilonidal Sinus in a Tertiary Care Hospital of Rawalpindi: A Descriptive Cross-sectional Study
Authors: Khan Tayyab Mumtaz , Akram Jehanzeb , Durrani Muhammad Saoban Khan , Ur Rehman Muhammad Hammad , Basharat Mehak , Saeed Momna , Shehzadi Uns , Attiq Aamna , Ul Ain Qurat , Shahid Muhammad Usman
Published: February 2023

Purpose: Pilonidal sinus incidence is increasing in surgical departments all over the world. Pilonidal sinus is under the influence of several factors. These factors are studied well in various parts of the world; however, these factors are understudied in Pakistan. This study aimed to find out the risk factors of pilonidal sinus among the patients diagnosed with pilonidal sinus.

Methodology: This descriptive cross-sectional study was conducted among one hundred and eight patients with pilonidal sinus at Benazir Bhutto Hospital Rawalpindi, for one year from January 2021 to January 2022. Ethical approval and informed consent were obtained before the start of study. Patients’ enrollment was done according to a developed inclusion and exclusion criteria. Convenient sampling technique was also applied for recruitment of participants. Data was collected through a self-designed questionnaire.  Descriptive statistics were utilized for the data analysis. Data analysis was performed by SPSS version 25.0 (IBM Corp., Armonk, NY).

Findings: Pilonidal sinus frequency was high among the patients who had age group of 11 to 30 years (68.52%), male gender (62.96%), driving profession (37.96%), family history of pilonidal sinus (64.82%), high body mass index(60.18%), daily sitting for more than 6 hours (79.62%), sitting on hard surfaces (63.88%), hairy skin (55.55%), excessive sweating (68.52%), poor hygiene of sacrococcygeal region (77.78%), number of baths less than three times per week (61.11%), and light colored skin (62.04%).

Recommendations: This study recommends that health authorities should make people educated regarding the risk factors that lead to pilonidal sinus. The study also recommends that people should reduce their body weight, sit over soft places and should avoid continuous sitting for long periods. People should take care of hygiene, especially of sacrococcygeal regions by shaving hair, drying moisture, and taking frequent baths.
Assessment of the Awareness of Warning Signs and Risk Factors of Stroke in a Tertiary Care Hospital of Rawalpindi: A Descriptive Cross-Sectional Study
Authors: Mumtaz Ahmed , Akram  Jehanzeb , Hasan Abdul Hadi , Ali Ramsha , Tariq Muhammad Salman , Tauqeer Alizay , Basharat Ayesha , Amer Marryam , Fatima  Syeda Ammara , Bibi Somia , Khan  Tayyab Mumtaz
Published: February 2023

Purpose: Stroke incidence is high all over in the world. It has a list of specific warning signs and risk factors. Awareness of people about those warning signs and risk factors is low especially in third world countries. This study aimed to identify the awareness of people about the warning signs and risk factors of stroke.

Methodology: This descriptive cross-sectional study was performed in a tertiary care hospital, Rawalpindi, among one hundred for one year from June 2021 to June 2022. Ethical approval and informed consent were waived before the start of study. Patients’ selection was made via a well-defined inclusion and exclusion criteria. Convenient sampling technique was also used for enrollment of participants. Data was collected by using a self-designed questionnaire. Descriptive statistics were put into action for the data analysis. Data analysis was carried out by SPSS version 25.0 (IBM Corp., Armonk, NY).

Findings: The warning sign of the stroke about which most of the people were aware was sudden body weakness or numbness (74%) while warning sign about which people were least aware was sudden difficulty in seeing objects by one or both eyes (29%). The most common identified risk factor in people was hypertension (70%) for stroke while least common identified risk factor was family history of stroke (36%). In short, this study indicates people awareness about the warning signs and risk factors of stroke was not up to the mark in study population.

Recommendation: There is need to increase the awareness level of people about the warning signs and risk factors of the stroke. This could lead to timely and effective management of stroke and its prevention as well.
Comparing the Efficacy of Intermittent Versus Continuous Oral Iron Supplementation in Non–Anemic Pregnant Women Presenting for Routine Antenatal Care
Authors: Basnet P  , Agrawal A  , Thakur A  , Yadav P  , Shrestha R  , Shah P
Published: February 2023

Anemia in pregnancy is a major health concern all over the world. Daily iron supplementation is used to prevent and correct iron deficiency anemia during pregnancy. Intermittent iron supplementation is proposed as an alternative to daily supplementation. This study was undertaken to compare the efficacy of Intermittent versus Continuous oral iron supplementation in non-anemic pregnant women presenting for routine antenatal care. A Prospective cross sectional study was conducted among one hundred and two non-anemic pregnant women at BP Koirala Institute of Health Sciences for one year. They were allocated alternatively to continuous oral iron and intermittent (4 days in a week) iron supplementation group. Baseline hemoglobin and serum ferritin was done and women having more than 10.5gm/dl hemoglobin were recruited in the study at 14-16 weeks period of gestation. Repeat hemoglobin and ferritin was done at 28 weeks period of gestation and hemoglobin at the time of delivery was noted. Maternal and perinatal outcome were analyzed among the two groups by appropriate statistical analysis. The repeat hemoglobin done at 28 weeks period of gestation and at the time of delivery was comparable between the groups. Though more women in the intermittent group developed anemia in 3rd trimester (11.46%), it was not statistically significant and none of the women in either group required blood transfusion intermittent iron supplementation is a good alternative to continuous oral iron supplementation as a prophylaxis in non-anemic pregnant women with similar efficacy
Analysis on the Formation Mechanism and Disaster Mode of Geological Hazards in Zhuwagen Town,Chayu County,Tibet
Authors: Wan Zhongyan , Wang Maoli , Zhou Peng
Published: February 2023

Geological disaster is a kind of natural disaster which is highly hazardous and destructive. This paper summarizes the disaster formation mode of debris flow and collapse according to the formation conditions and initiation process of the nine debris flow and the formation conditions of the six collapse in Zhuwagen Town, and analyzes the triggering factors and disaster formation mode of the geological disaster chain in Zhuwagen Town, and finally discusses and analyses the formation mechanism and disaster formation mode of the whole geological disasters in Zhuwagen Town.
Evolution Patterns and Outburst Risk Evaluation of Luregou Glacial Lake in Northern Tibet
Authors: Ma Haishan , Bai Yongjian , Ma Wenli , Ye Youcheng , Huang Jicai
Published: February 2023

Affected by global warming, glacial lake outburst events occur frequently on the Qinghai-Tibet Plateau. Glacial lake outburst is characterized by large scale, sudden occurrence, danger and difficulty in prevention and control. Based on the remote sensing interpretation and field investigation of 29 glacial lakes in Luregou basin in the upper reaches of Yigongzangbu basin, four periods in 1976, 1988, 2001 and 2013, the development characteristics, distribution patterns and types of changes in glacial lakes were deeply analyzed. Factors such as changes in glacial lake area, terminal moraine dam, ice avalanche and ice landslides, and glacial lake types were selected to initially construct a rapid rating method for glacial lake outburst risk. Using this method, 29 glacial lake outburst risks were evaluated in Luregou Basin, and the evaluation results showed that the risks were large, medium and small in 5, 6 and 18 places respectively. Furthermore, the outburst mechanism and disaster effect of Ranzeriacuo glacial lake on July 5, 2013 were analyzed in detail.
Investigation on Surface Crack Resistance and Curing Measures of Airport Cement Concrete Pavement during Construction in Strong Wind and High Temperature Weather
Authors: Ge Hongbin
Published: February 2023

The airport cement concrete pavement is prone to surface shrinkage cracks during construction under strong wind and high temperature conditions. Based on this, in this paper, the influence effects and mechanisms of curing methods on early shrinkage and crack resistance of concrete were investigated through indoor tests to simulate strong wind environment and high temperature environment in summer, and the applicability of different curing methods in engineering practice was verified by on-site experiments. The indoor experiment results demonstrated that the concrete was more prone to cracks under strong wind than under high temperature. The indoor and on-site experimental results showed that it was difficult to ensure a crack-free concrete surface by employing traditional geotextile, simply spraying curing agent or using only water-saving moisturizing curing film, among them, utilizing composite geotextile curing film has the best anti crack effect. In addition, incorporating polymer water absorbent resin enables the concrete to be cured internally, so it can be used as a supplementary curing measure to further improve the crack resistance of concrete in strong wind and high temperature weather.
Vehicle Parameter Identification Method Based on Road Excitation
Authors: An Xinhao , Hou Jilin
Published: February 2023

Accurate vehicle physical parameters play an important role in the use of vehicle vibration information. A method to identify vehicle parameters based on road excitation is proposed. Firstly, the frequency response function of vehicle acceleration response with respect to road displacement excitation is derived based on the contact conditions for the displacement between vehicle tires and road, and the relationship between frequency response function, vehicle acceleration response and road cross-section shape in the frequency domain is established. Then, the objective function is established using the frequency response of the road surface, and the physical parameters of the vehicle are identified using the interior point method. Finally, numerical simulation is performed and the physical parameters of the vehicle model are successfully identified. The results show that the method can effectively identify the physical parameters of vehicles.
First records of Ameles spallanzania (Rossi, 1792) with new data on the distribution of Hierodula tenuidentata Saussure, 1869 in Bulgaria (Insecta: Mantodea: Mantidae)
Authors: Vasilev Yordan , Trifonov Teodor , Naumova Maria , Hristov Georgi
Published: February 2023

The praying mantis Ameles spallanzania (Rossi, 1792) is reported for the first time from Bulgaria, as well as for the Black Sea Region. New data on the current distribution in Bulgaria of an alien mantis species, Hierodula tenuidentata Saussure, 1869, is also presented.
Implementation of Crow Search Algorithm for Achieving Optimal Control of a Single-Link Flexible Manipulator
Authors: Sahu Venkata Satya Durga Manohar , Samal Padarbinda , Panigrahi Chinmoy Kumar
Published: February 2023

A metaheuristic optimizer based on the cognitive behavior of crows, called the Crow Search Algorithm (CSA), is suggested in this paper for the optimization of the performance of the single link flexible manipulator as a constrained optimal control problem, which comprises objective functions, constraints, and decision variables. The CSA outperformed other algorithms, such as Differential Evolution, Grey Wolf Optimization, and Particle Swarm Optimization. Parameter setting is another highlight of the current paper. In conclusion, CSA yields more promising results than other approaches.
Spatial Distribution and Health Risk Assessment based on Groundwater Fluoride Enrichment in Gaya, Bihar, India
Authors: Ahmad Shaz , Singh Reena
Published: February 2023

Fluoride can be hazardous to the body if consumed in excess. Fluoride exposure in humans can occur through the consumption of contaminated groundwater. The purpose of this study is to determine the amount of fluoride present in the area under investigation and to determine the health risks associated with its ingestion by adults and children. In accordance with the method recommended by the Environmental Protection Agency, the assessment of the health risk was done using the Chronic Daily Intake (CDI) and Hazard Quotient (HQfluoride). The fluoride in groundwater varies from 0.37 - 2.70mg/L in the study area. According to the sampling results of all locations, the HQfluoride value in adult males ranges from 0.38 to 2.77, 0.34 to 2.45 in adult females, and 0.41–3.0 in children, which is above the permissible limits for most of the sampling locations, indicating significantly higher health risks. The outcomes of this study could be beneficial for organizations in charge of promoting human health.
Groundwater Quality Assessment Based on a Statistical Approach in Gaya District, Bihar
Authors: Ahmad Shaz , Singh Reena
Published: February 2023

India is one of the countries that face the serious problem of groundwater contamination. The current study's main objective is to evaluate the quality of the groundwater in the Serghati and its surrounding region of the Gaya district and its suitability for drinking purposes. To achieve this aim, 75 groundwater samples from the 15 sampling sites were collected during the period from March to May 2022. We measured and analyzed the major physicochemical characteristics of the water and compared them to the World Health Organization (WHO) standards. With the help of the Water Quality Index (WQI), groundwater quality was assessed. According to the study results, 3 sites have a WQI value of more than 100, which is unsuitable for drinking. Correlation matrices were used to assess groundwater quality and the extent of the interdependencies of the various parameters. Principal Component Analysis (PCA) reduces the number of significant variables. Three principal components with a total variance of 73.53% were identified and used in the analysis. Overall, the result indicates that most areas' water quality is good and safe for drinking.
Static and Seismic Stability of a Slope Reinforced with Two Rows of Piles
Authors: Chekroun Lokmane El Hakim , Boumechra Nadir
Published: February 2023

The use of piles for slide stabilization is considered among the most important innovative reinforcement techniques. Piles have been successfully used in many situations to stabilize slopes or as parts of a stability improvement. Our case study is in the Tlemcen section. The left side of the roadway collapsed following the slide of the downstream side. Inclinometer readings showed signs of instability with a slip depth of about 9m near the motorway platform. The likely causes of the instability were the removal of the lower abutment of the embankment upstream of the road and the establishment of an earth deposit which overloaded the embankment and disrupted the flow of water downstream. The stabilization study is based on the installation of two rows of anti-slip piles. Stability analysis study was carried out under static and dynamic loads and highlights that this solution is advantageous and effective.
Slope Reliability Analysis in Locating and Observing the Direction of Failure Propagation
Authors: Djeffal Houcine , Belkacemi Smain
Published: February 2023

Slope stability analysis is traditionally carried out with the ultimate equilibrium methods. In these approaches, the global assessment of slope stability is obtained through the evaluation of the factor of safety. The strength parameters that allow the evaluation of resistant forces along the hypothetical slip surface are considered unique and constant. The shape of the stress-strain curve of the soil may substantially affect the stability of the soil mass over, particularly in the case of the potential of a progressive failure. As a part of this work, the influence of uncertainties on the peak and post-peak strength parameters and the impact of a progressive failure on the failure probability of a hypothetical slip surface are discussed. The conventional method of Morgenstern-Price of slope stability analysis consisted of locating the critical slip surface by evaluating the minimum factor of safety. The probability of failure was estimated using three different techniques, i.e. FORM, FOSM, and Monte Carlo simulation. This study improved the assessment of the impact of progressive failure on the risk of slope failure. The reliability analysis of slices allowed for locating the failure area and observing the direction of failure propagation.
Study of Gamma-ray Shielding of Two Different Heavy Metals and their Combination for Cs-137 and Co-60 Sources
Authors: Eisa Mohamed E. M. , Ali M. D. M. , Abuualreish Mustafa  J.
Published: February 2023

This article presents data collected by measurements of lead (Pb) and iron (Fe) and their combination as heavy shielding materials. Measurements were performed using gamma photon energies of 662, 1173, and 1332keV for the Cs-137 and Co-60 sources. The theoretical data part was calculated using WinXCom, Phy-X, and Py-MLUBF software packages. Tables and graphs of the photon Mass Attenuation Coefficient (MAC), Linear Attenuation Coefficient (LAC), Half Value Layer (HVL), Tenth Value Layer (TVL) and Mean Free Path (MFP) are presented for both heavy metals and their combination to study the shielding properties experimentally and theoretically. The results will contribute to the ongoing research as a database for future use.
A Dynamic Adaptive Bio-Inspired Multi-Agent System for Healthcare Task Deployment
Authors: Reffad Hamza , Alti Adel , Almuhirat Ahmed
Published: February 2023

The use of the Internet of Things (IoT) in healthcare is increasing significantly, bringing high-quality health services, but it still generates massive data with massive energy consumption. Due to the limited resources of fog servers and their impact on limiting the time needed for health data analysis tasks, the need to handle this problem in a fast way has become a necessity. To address this issue, many optimization and IoT-based approaches have been proposed. In this paper, a dynamic and adaptive healthcare service deployment controller using hybrid bio-inspired multi-agents is proposed. This method offers optimal energy costs and maintains the highest possible performance for fog cloud computing. At first, IGWO (Improved Grey Wolf Optimization) is used to initialize the deployment process using the nearest available fog servers. Then, an efficient energy-saving task deployment was achieved through Particle Swarm Optimization (PSO) to reduce energy consumption, increase rewards across multiple fog servers, and improve task deployment. Finally, to ensure continuous control of underloaded and overloaded servers, the neighborhood multi-agent coordination model is developed to manage healthcare services between the fog servers. The developed approach is implemented in the iFogSim simulator and various evaluation metrics are used to evaluate the effectiveness of the suggested approach. The simulation outcome proved that the suggested technique provides has better performance than other existing approaches.
Agtech: startups y nuevas tecnologías digitales para el sector agropecuario
Authors: Lachman Jeremias , Pereyra Martín , Tacsir Ezequiel
Published: February 2023

En la última década el sector agropecuario fue testigo de un cambio radical expresado a través de la creciente utilización de tecnologías de base digital. Este paradigma emergente, usualmente conocido como agtech, derivó en nuevas oportunidades para el escalamiento/upgrading en cadenas globales de valor. Este trabajo aporta elementos para la comprensión del fenómeno del desarrollo del sector agtech en Uruguay, intentando identificar los principales drivers de su crecimiento, así como también los mayores obstáculos. Utilizando una metodología de estudio de casos presentamos un par de emprendimientos de base digital en Uruguay. Encontramos que las capacidades tecnológicas, la experiencia previa, las vinculaciones tempranas con usuarios y los espacios de apoyo fueron centrales para que los emprendedores puedan identificar oportunidades de negocio, obtener financiamiento, y desarrollar y validar las tecnologías. También identificamos diversos obstáculos que estarían limitando las posibilidades de crecimiento de este sector y, en esta dirección, realizamos una serie de propuestas para el diseño e implementación de políticas públicas.
A teoria do comportamento planejado como proxy para estratégias de green marketing
Authors: Lopes Reinaldo de Camargo , Rodrigues Ferretto Luana , Da Veiga Dias Valeria , Callegaro Daniela , Kindlein Liris , Palma Revillion Jean Philippe
Published: February 2023

Os produtos verdes destacam-se como novas tendências de consumo, mas para criar elementos de marketing desses produtos precisa-se entender os conceitos sociopsicológicos dos consumidores. Assim, a pesquisa objetivou investigar o enfoque científico na relação da teoria do comportamento planejado com o comportamento de compra de produtos alimentícios verdes através de uma revisão sistemática de literatura na base de dados Scopus, buscando insights para construção de estratégias de green marketing. Os resultados indicam que a confiança é um fator-chave para estimular a compra de produtos verdes, influenciando diretamente a decisão de compra dos consumidores. Descobriu-se que a transparência de informações é imprescindível para estabelecer uma relação de confiança entre produtor-empresa-consumidor que pode impulsionar o consumo de alimentos verdes. Como consenso geral dos artigos, o marketing tem papel fundamental na oferta de informações, porém não há um conceito definido do termo produtos verdes, podendo prejudicar as estratégias de green marketing.
Entre los trabajadores agrícolas temporeros subsaharianos y sus empleadores
Authors: Diallo Ibrahima
Published: February 2023

Este artículo analiza las sospechas que interfieren en la relación entre los jornaleros agrícolas subsaharianos y sus empleadores. Primeramente se examinan los elementos que alimentan dichas sospechas, así como las diferentes formas que adoptan. Posteriormente, se muestra que las sospechas están vinculadas a una conciencia difusa de la explotación de la mano de obra estacional por parte de los agricultores.
Active Pharmaceutical Ingredient and Impurity Profiling Paracetamol
Authors: D. A. Patil  , S. K. Bais  , Makardhwaj Bansode
Published: February 2023

The first paracetamol was created in 1877, or even 1852. In both the US and Europe, it is the most frequently prescribed drug for pain and fever. It is listed as one of the Essential Medicines by the World Health Organization. Tylenol and Panadol are just a couple of the brand names for the generic drug paracetamol, which is also sold under numerous names. It received more than 5 million prescriptions in 2020, ranking it as the 118th most popular drug in the country..Acetaminophen, usually referred to as paracetamol, is a drug used to treat fever and mild to moderate discomfort.Tylenol and Panadol are examples of popular brand names.The benefits of paracetamol use for fever are unclear because, at a typical dose, it only modestly lowers body temperature; in that regard, it is inferior than ibuprofen. Acute mild migraines may be helped by paracetamol, however recurring tension headaches may only be minimally relieved. Ibuprofen is superior to paracetamol in terms of effectiveness for post-surgical pain management. The medicine of choice for lowering fever is paracetamol. It’s unclear whether paracetamol has any advantages in musculoskeletal problems like osteoarthritis and backaches.When used to treat mild to moderate pain, paracetamol can help with headaches, muscle pains, minor arthritic pain, toothaches, and discomfort from the common cold, the flu, sprains, and dysmenorrhea. It is particularly advised for acute mild to moderate pain because there is little evidence to support its use in the treatment of chronic pain. At a dose of 4gram per day, paracetamol may marginally elevate systolic blood pressure in hypertensive patients. Although it’s uncertain whether paracetamol is the real reason of this increase, studies show that children of mothers who used paracetamol for an extended period of time during pregnancy had higher rates of asthma, developmental, and reproductive issues. A maximum of three to four grammes per day is advised for adults. Toxicity from higher doses, including liver failure, is a possibility. Most drug overdoses in the US, UK, Australia, and New Zealand are caused by paracetamol poisoning, which is the leading cause of acute liver failure in the Western world.
An Analytical Study on Interconnection Network
Authors: Rajbhan Singh  , Dr. G. N. Singh
Published: February 2023

Interconnected networks are extremely important aspects of data communication. It is used to transport data between processing units of networks and memory units. It uses a series of interconnected devices to transfer the data using parallel processing. Parallel processing occurs when one process or operation is completed using multiple processors (i.e., multiple computers) independently of each other. This is done to reduce the time required for the operation, as well as to reduce the strain of the operation on one computer. The main parts of an interconnected network are called nodes: memory, processor, and switches, which turn the connections between the memory unit and processor on and off. There are many benefits to using an interconnected network, including an increased speed of data processing. One of the most frequently used examples of an interconnected network is a system of connected computers. Interconnected networks can use one of a number of topologies. The two major types of interconnected networks are static networks and dynamic networks. There are two main types of static networks (completely connected and limited connection), and many different types of dynamic networks, including bus, crossbar, and multistage. Static networks have constantly fixed connections between memory units and processors, whereas dynamic networks have switches that turn off these connections. Completely connected networks are most useful when speed is important, and the cost of data processing is not. Limited connection networks do not have a constant connection between nodes, so messages between the nodes must be efficiently routed.
Manufacturing of a Smart Coating by Using SiO2 Nanoparticles and Hexamine
Authors: Ebrahim Fathabadi Hadi , Ghorbani Mohammad
Published: February 2023

Recent years have seen a significant increase in interest in smart anticorrosion coatings, which can detect corrosive situations and autonomously discharge corrosion inhibitors. The mild steel surface was coated with pH-sensitive nanocontainers that had been manufactured and doped into an epoxy coating. Elemental mapping, thermogravimetric analysis/differential scanning calorimetry, and electrochemical impedance spectroscopy (EIS) methods were used to examine dispersion homogeneity, thermal durability, and corrosion tolerance. The findings indicated that nanocontainers dispersed uniformly in epoxy and that doping nanocontainers had no effect on the epoxy properties. When immersed in NaCl solution with nanocontainer doping concentrations of 3%, 6%, and 9%, EIS findings showed a rise in epoxy corrosion resistance following 5 d, 10 d, 15 d, 25 d, and 30 d. This enhancement was attributable to the smart release of corrosion inhibitors to protect steel surfaces. Infrared thermography and corroded substrate images confirmed the EIS data. The Korsmeyer-Peppas kinetic model was the best model for fitting the obtained data.
Revista Gaceta Técnica ingresa al repositorio de Scielo
Authors: Casadei Carniel Luisa
Published: February 2023

La revista científica Gaceta Técnica considerando las recomendaciones de los distintos entes evaluadores, ha ido mejorando el proceso de publicación en pro de optimizar la calidad editorial, alcanzando así en el año 2022 un lugar en el Repositorio Multidisciplinario SciELO, el cual permite preservar y difundir a mayor escala los artículos aprobados para la publicación en Gaceta Técnica
Confiabilidad de la velocidad de pulso ultrasónico para análisis y comparación de la resistencia a compresión de concreto convencional con adición de fibra de acero y polipropileno
Authors: Jaramillo Machacuay Honorio Rigoberto , Yoctun Rios Roberto Roland
Published: February 2023

La investigación tuvo como objetivo evaluar la confiabilidad del método de la velocidad del pulso ultrasónico. Se estimó la resistencia del concreto establecido por curvas de correlación por las pruebas de Velocidad de Pulso Ultrasónico e Índice Esclerométrico, desarrollándose curvas de correlación simple y múltiple por la metodología de SonReb. Utilizando un concreto convencional con la adición de fibras de acero 5% y polipropileno 0,21%, con un diseño de mezcla f´c = 21MPa. Se prepararon setenta y dos cilindros de concreto de 150 x 300mm. En los días 7, 14, 21 y 28, se realizaron pruebas de resistencia a la compresión, índice esclerométrico y velocidad del pulso ultrasónico. En conclusión, las mediciones de la velocidad de pulsos ultrasónicos revelaron una buena categorización de calidad de los concretos como excelente y una correlación de dependencia fuerte. En general, el porcentaje de error que presentan las ecuaciones analíticas se mantienen dentro del +-10%
Corporate Governance in South Africa: Profit-Sharing and Stakeholder Management
Authors: Fortuin Marlin , Makoni Patricia
Published: February 2023

Executive compensation and rewards continue to increase at a higher rate than employee income, incentives, and rewards despite prominent growth in corporate earnings and stock valuations. The aim of this study is to determine whether executive compensation policies are aligned with firm performance, and assess how an employee profit-sharing structure could be implemented to minimise the disparity between firm income growth and the level of employee productivity that contributes to such growth. Three firms listed on the Johannesburg Stock Exchange (JSE) were selected for this study for the financial period 2014 to 2020. Log-linear models are applied to firm efficiency and growth factors. A classification model relating executive compensation to firm risk and performance is presented. Thirdly, a profit-share model is proposed to analyse profit-share impact on compensation ratios and firm cash flow and net profit. No conclusive relationship be-tween executive compensation and financial performance was found for this sample. Profit-share implementation reduces the average employee-executive compensation ratio marginally and has mixed results on inter-firm cash flows and net profits.
Learning Financial and Business Skills for the Sustainability of Female Necessity Entrepreneurs in the Informal Street Trade in South Africa
Authors: Cloete Melanie , Maistry Suriamurthee , Singh Shakila
Published: February 2023

Western-centric studies on opportunity-based entrepreneurship have dominated the literature on female entrepreneurs. Existing research has also tended to focus on the experiences of women in the formal rather than the informal sector. In this article, we examine female necessity entrepreneurs' experiences of learning financial and business skills in the informal street trade in South Africa. The theoretical framework for this research, which was located within a critical feminist paradigm and used a feminist phenomenological design, drew on African feminisms, resilience, and informal learning. Phenomenological, in-depth, face-to-face interviews were conducted with a convenience sample of twelve women in the informal street trade in the Durban area of KwaZulu-Natal, to capture the essence of their experiences of running their businesses. The main findings showed that poor black women, especially those trading without permits in the informal street trade, faced multiple challenges, but were able to learn some of the financial and business skills necessary for survival. However, this learning was reactive, problem-centred, observation based, imitative, and partial. These findings emphasised the need for these entrepreneurs to upgrade their financial and business skills in order for their businesses to remain sustainable. The study recommended various targeted policy initiatives to support female necessity entrepreneurs.
A polgári tudományszervezés gyakorlata a Magyar Tudományos Akadémia Veszprémi Akadémiai Bizottság és a Kodolányi János Egyetem együttműködésében
Authors: Hervainé Szabó Gyöngyvér , Szabó Péter Ottó
Published: February 2023

A Kodolányi János Egyetem az alkalmazott tudományok kutatásával foglalkozó intézmény, amelynek kutatási tevékenysége az elmúlt harminc évben az MTA Veszprémi Területi Akadémiai Bizottságával közösen bontakozott ki. E kutatás a civil tudományos együttműködés kereteiben indult, hiszen a VEAB feladata is ehhez kapcsolódott, és a KJF/KJE sem kapott állami forrásokat kutatásaihoz. Az alkalmazott használatközpontú kutatás szerepe a tudásgazdaságban csak napjainkban értékelődött fel az EU szintjén is, és a KJE-VEAB együttműködés 30 éve ennek hasznosságát egyértelműen bizonyítja. A 2007-től konkrét kutatási közlemény adatokkal és idézettséggel is kimutatott a KJE kutatási tevékenysége, amely adatok szerint az intézmény a magyar tudományosság elismert szervezetévé vált.
A veszélyes látogató : A londoni követség kalandos életű orvosának elvetélt megközelítési kísérlete
Authors: Pál István
Published: February 2023

Ahogy az 1956-os forradalom bukásával Magyarország nemzetközi téren elszigetelődött,1 a nyugati turistaforgalom éppen megindult lassú növekedése is megtorpant. Bár Nagy-Britannia az Edgar Sanders letartóztatása és szabadon bocsátása közötti időszaktól (1949-1953) eltérően nem vezetett be utazási tilalmat, a szigetországból évente alig pár százan érkeztek hazánkba. A beutazók jelentős részét a 30-as évek során az érvényesülés korlátozása miatt kivándorolt vagy a második világháború kitörése előtti időszakban a faji és vallási üldöztetés elől elmenekült egykori magyar állampolgárok adták, akik életben maradt hozzátartozóikhoz jöttek látogatóba. Az állambiztonság a ”közös antifasiszta platform” alapján szinte automatikusan megkísérelte behálózni a sokszor megtört, gyámoltalannak látszó embereket. A többségük érthető módon még az erre irányuló tapogatódzástól is alaposan megijedt, ezért sokan az első megkeresés után már látogatóba sem tértek vissza, míg mások fokozatosan távolodtak el az óhazától. Az esetek egy viszonylag kis százalékában viszont előfordult, hogy a potenciális áldozat – ez esetben dr. Blitz László orvos – ellentámadást indított, és rövid úton kellemetlen helyzetbe hozta a BM tisztségviselőit.
Shakespeare szonettjei - verstörténet és kultúrtörténet (Második rész)
Authors: Szele Bálint
Published: February 2023

A kétrészes tanulmány témája a magyar Shakespeare-kultusz egy kevéssé feldolgozott szegmense, a Szonettek. A drámák mellett háttérbe szoruló versekről napjainkban már mindenki elismeri, hogy Shakespeare legjelentősebb, legizgalmasabb művei, melyek számtalan értelmezésre adnak lehetőséget. A szonetteket Szabó Lőrinc 1921-es fordítása tárta fel a magyar olvasóknak, azelőtt marginális, érthetetlen művekként tekintettek rájuk. A tanulmány második része részletesen bemutatja a szonettciklus felépítését és a Szonettek történetét, kontextusba helyezve annak szereplőit és bemutatva a cikluson átívelő metaforákat, képvilágot, költői eszközöket. A tanulmány befejező része a Szonettek magyarországi történetével, fordításaival, értelmezéseivel foglalkozik. Az átfogó elemzés egyben kísérletet tesz a Szonettek teljes körű bemutatására és elhelyezésére a magyar művelődéstörténetben.
A Paradeplatz „rühes kutyái" - magyar térnyerés a „német" Temesváron
Authors: Gurzó K. Enikő
Published: February 2023

A délmagyarországi városok közül a „német” többségű Temesvár szerez magának vezető szerepet a 19. század második felében. Ez az előretörés szorosan összefügg a település várfalainak lebontásával, az urbanizációs fejlesztéssel, amely megnyitotta a földrajzilag jól pozicionált alföldi várost a kereskedők, a szolgáltatók és a nagyipari befektetők előtt. Mindez a társadalmi életben is változásokat indított el. Bár a településnek gazdasági és katonai szempontból korábban is fontos stratégiai szerepe volt, a kiegyezés után megerősödött a nyitottságra hajló jellege, előnyös helyzetbe hozva a magyar lakosságot. A folyamat nem volt zökkenőmentes, nem is ment végbe gyorsan, bár lényegesen megkönnyítette és felgyorsította az osztrák adminisztráció fellazulása. Tanulmányomban a polgári kibontakozásnak azokat a színtereit, intézményeit és jelképeit veszem sorra, ahol ez bekövetkezett, ahol az öntudatra ébredő civil lakosság kiengedte a „gőzt”, szóba hozva a Habsburg önkényuralom megtörésére rávilágító városi legendákat, és szemléltetve, mekkora jelentősége volt a határozott magyar fellépésnek.
A Literature Review of Clinical Characteristics of Cerebral Malaria
Authors: Chairunnisa Nabilla Feirizky , Putri Jelita Aprisano , Arwati Heny
Published: February 2023

Malaria is a disease transmitted by the bite of the female Anopheles mosquito and caused by protozoa of the genus Plasmodium. Malaria infection has several manifestations with cerebral malaria (CM) being the most severe neurological complication and a leading cause of malaria death. Cerebral malaria is characterized by a coma at least 1 hour after a seizure or a hypoglycemia, asexual forms of Plasmodium falciparum on peripheral blood smears, with the absence of any other causes of coma. This definition is quite vague in practice, thus making an accurate identification of clinical characteristics of cerebral malaria necessary in diagnosis to help reducing malaria deaths. This article is to summarize the medical literature to clarify the clinical characteristics of cerebral malaria.
The Influence of Service Quality, Trust and Corporate Image on Customer Loyalty with Customer Satisfaction as Intervening Variables in SiCepat Ekspres In the City of Depok
Authors: Mujiyana Mujiyana , Anggraini Dita , Damerianta Sahni
Published: February 2023

The development of online shops in several e-commerce makes changes the pattern of public consumption. Seeing the increasing consumer needs and the number of online businesses that have sprung up, this has triggered the need for freight forwarding companies to also increase. The purpose of this study was to analyze the effect of the quality of service, trust and company image on customer loyalty with customer satisfaction as an intervening variable in Sicepat Ekspres in Depok City. The method of analysis in this study uses primary data. The data obtained came from questionnaires distributed to 210 respondents, namely SiCepat Ekspres customers in Depok City. Samples were taken using purposive sampling technique. The analytical tool used in this study is SmartPLS version 3.0 by conducting validity tests (Convergent Validity, Discriminant Validity, Average Variance Extracted (AVE), Reliability Test (Composite Reliability and Cronbach’s Alpha), R Square, and Path Coefficient. The results of the study are seen from path coefficient shows that Service Quality has a significant effect on Customer Satisfaction, Trust has no effect on Customer Satisfaction, Corporate Image has a significant effect on Customer Satisfaction, Service Quality has no effect on Customer Loyalty, Trust has no effect on Customer Loyalty, Corporate Image has no effect on Customer Loyalty, Customer Satisfaction has a significant effect on Customer Loyalty, The influence of Service Quality has a significant effect on Customer Loyalty with Customer Satisfaction, Trust has no effect on Customer Loyalty with Customer Satisfaction, Corporate Image has a significant effect on Customer Loyalty with Customer Satisfaction.
The Effect of Mental Posyandu Community Health Worker Training on Knowledge and Attitudes about Handling Patients with Mental Disorders in Indonesia
Authors: Ni’mah Nur Lailatun , Aini Minatul , Irfan Achmad , Aminullah Aminullah , Indria Dewi Martha , Rahayu Firmina Tri
Published: February 2023

Introduction: The number of Patients with Mental Disorders in the Sumberpucung District is very high at 246 individuals. Mental Health Posyandu has yet to be founded in the Sumberpucung Health Center region. This s is due to the absence of Community Health Workers (CHWs) and their lack of mental health competence. It is established that mental health training for CHWs influences the knowledge and attitudes of CHWs about mental health. However, the Sumberpucung Community Health Center has never offered mental health training. Methods: This quantitative study with Quasi Experiment Design approach and the One Group Pretest-Posttest Design. Thirty-three individuals were sampled using the complete sampling technique. Research instruments using pretest and post-test questionnaires. The questionnaire underwent both validity and reliability testing. The intervention took the form of training consisting of distributing mental health-related materials and a workshop on the five implementation tables for mental health posts. Wilcoxon Sign-Rank Test uses non-parametric statistics in contrast to other tests. Results: The Wilcoxon Sign-Rank Test yielded a P value of 0.002 (<0.005) for several tests of CHW knowledge in the pre-and post-tests. This study reveals that between the pre-and post-tests, understanding of CHW is significantly altered. The Wilcoxon Sign-Rank Test revealed a P value of 0,038 (<0,005) between the pre-and post-tests of the attitudes of the CHWs. This study reveals that the attitudes of CHWs change considerably between the pre- and post-test. Conclusion: Mental health CHW training influences mental health CHW knowledge and attitudes.
The Correlation Between Frequency of Transfusion and Alloimmunization in Transfusion-Dependent Thalassemia Patients
Authors: Wafa Aimmatul Yumna Nihayatul , Tambunan Betty Agustina , Andarsini Mia Ratwita
Published: February 2023

Thalassemia is a red blood cell disorder caused by impaired synthesis of hemoglobin and is genetically inherited. Based on the need for transfusion, thalassemia is divided into transfusion-dependent thalassemia and non-transfusion-dependent thalassemia. Transfusion-dependent thalassemia patients require life-long red blood transfusions. Transfusions that are carried out will cause complications reactions to the body such as immune reactions, i.e. Alloimmunization. Alloimmunization remains a major problem in transfusion dependent thalassemia patients. Aims to determine the relationship between the frequency of transfusions and the incidence of alloimmunization in transfusion-dependent thalassemia patients. This research is an observational analytic study with a retrospective approach using secondary data in the form of medical records at the Pediatric Hematology Oncology Installation, Blood Transfusion Installation, and Central Medical Records at RSUD Dr. Soetomo 2019–2020. This study used 193 research samples, 165 patients (85.5%) did not experience alloimmunization and alloimmunization was found in 28 patients (14.5%). In the female group, 21 of 99 (21.2%) patients and in the male group 7 of 94 (7.4%) patients who had alloimmunization. The distribution of transfusion-dependent thalassemia patients get a transfusion frequency of 1–10 times (35.7%) before had alloimmunization. The relationship between the frequency of transfusions and the incidence of alloimmunization has p value = 0.65 (>0.05). There is no significant correlation between the frequency of transfusions and the incidence of alloimmunization in transfusion-dependent thalassemia patients.
Comparison of Total Number of Bacteria in Raw Milk Friesian Holstein Cow Based on Milking Techniques Using Total Plate Count (TPC) Test
Authors: Kusumah Nur Alia Faustin , Widjiati Widjiati , Puspitasari Yulianna , Tyasningsih Wiwiek , Wardhana DhandyKoesoemo , Permatasari Dian Ayu , Luqman Epy Muhammad
Published: February 2023

The aim of this research was to know the comparison of total number of bacteria in raw milk based on milking techniques. This research used purposive sampling and used 30 samples, 15 cows from Lucky Farm and 15 cows from three traditional farmers in Medowo Village, Kandangan District, Kediri Regency. All samples were tested using pour plate method Total Plate Count (TPC) test in Veterinary Public Health Laboratory of Veterinary Medicine Faculty, Universitas Airlangga in Surabaya. The existing data will be processed with Kolmogorov normality test and Independent T-test. The result of this research served in tables. The research was conducted in January to February 2022. The result showed that there are some samples have a total number of bacteria that meet predetermined standards, but some other samples do not meet the standards of SNI according to SNI 7388:2009 which is 1 x 106 CFU/ml. The average number of the machine-milked sample was 3.5 x 105 CFU/ml, while in the conventionally milked sample was 2.9 x 106 CFU/ml. The results of the analysis using the Independent T-test showed that there was significant difference in the number of bacteria in milk using machine and conventional milking (p<0.05).
Compliance with International Financial Reporting Standard 7: A Comparative Study between Palestine & Jordan
Authors: ASSAD Heba N.
Published: February 2023

International Financial Reporting Standard 7 (IFRS 7) focuses on enabling users of financial reports to examine not only the usefulness of financial instruments for organizations but also the type and scale of the risks involved in employing financial instruments, as well as how firms manage risks.