目次 at IgMin Research

The plant-pollinator relationship is one of the most investigated biological processes, not only because of its ecological importance (natural and farming ecosystems) but also its economic profitability (farming and biological products). Current losses of bee populations urge the need to assess the state of wild bee biodiversity in environments such as the Sierra de Guadarrama. Two characteristic sites with different plant diversities were compared by collecting bees using net trapping, a thicket, and a grassland. In this way, not only the poss...ible influence of floral wealth on bee abundance was studied, but also the preference of these Hymenoptera towards any type of flower. Phenological patterns and predominant sex were also studied. 331 bee individuals, belonging to 6 families, 19 genera, and 46 species, were recorded in this study. Our results showed that bee diversity depends not only on environmental factors (temperature or plant composition and abundance) but biological as well (plant-pollinators matches or co-occurring species). Moreover, our study sets a starting point for debating the influence of managed bees (Apis mellifera) on wild bee communities. A preference for a small number of plant species (Cistus ladanifer, Echium vulgare, and Lavandula stoechas) was observed. In addition, there was a relationship between the type of corolla and the tongue length. Our study highlights the importance of this area of the Sierra de Guadarrama for wild bee biodiversity. All things considered, it falls on preserving those ecosystems with high floral wealth to favor the wild bee´s presence and its habitat in the foresight of climate change future scenarios.Read more

Throughout this document, the opportunity is provided to show the relationship between sustainable development and economic growth, focusing on their definitions, their disparity, and their consequences, at the same time it gives us a vision of the evolution of the importance of economic development and of their inability to solve the problem of poverty.The satisfaction of the needs of the human being, would go through seeking a balance between economic growth, care for the environment, and social welfare, a breakdown of this balance has put in...to question the traditional model of economic development, in which they raise fundamental questions where the very accumulation of wealth creates poverty.The bibliographic search carried out has led us to obtain a series of conclusions on the proposed terms, in which a robust social solidarity economy would lead us to the eradication of poverty.This work takes us to a reflection on the sustainability of natural resources, the viability of the economic development model, and its rate of growth in a context of globalization in which localities are left behind, but without being forgotten, although they have no involvement in models that meet their development needs.Read more

When a Maxwellian distribution is assumed for the distribution function in the BGK-type modelled BE, it will give rise to the Euler equations if it is the first-order approximation in the Chapman-Enskog method. Then the second-order equations will yield the N-S equations. Most LBM developed to date are formulated based on the second-order equations. Consequently, the assumption of a flow Mach number M << 1 is inherent in this formulation. This approach creates an unnecessary restriction on the LBM that should be avoided if possible. An al...ternative approach is to formulate a new LBM by considering an equilibrium distribution function where the first-order approximations give rise to the N-S equations. Adopting this approach, a new LBM has been formulated. This new LBM gives reliable results when applied to simulate aeroacoustics, incompressible flows, and compressible flows with and without shocks. Good agreement with measurements and numerical data derived from DAS/DNA calculations is obtained.Read more

Microorganisms reside in and around humans and are sometimes pathogenic. However, most of the microbes in the air or in our body, which exist as commensals or symbionts, benefit us in some form or other. We depend heavily on these beneficial microbes for our optimum health. The purpose of this review was to delineate and summarize the various applications of microbes for the benefit of mankind. In many areas, the biochemical properties and metabolic end products of microbes are now being channelized for improving human health and quality of lif...e. The author collated data from various published articles and tried to present a holistic viewpoint of this aspect of the application of microbes for the betterment of human health and public health as well.Read more

The medicinal herb Asparagus racemosus has been used in traditional medicine to treat various diseases such as cough, diarrhoea, diabetes, gastric issues, gonorrhoea, headaches, piles, rheumatism, and even lactation enhancement. This study explores the genetic information and phytochemicals of the species native to Gia Lai province, Vietnam before its conservation and cultivation. Five species of A. racemosus were analyzed using the trnL-e/trnL-f regions sequence. A. racemosus roots were extracted by water then Ultra-High-Performance Liquid Chr...omatography coupled with Quadrupole/Time-Of-Flight Mass Spectrometry (UHPLC-Q-TOF-MS) spectroscopy was used to screen for their phytochemicals. We have confirmed the DNA genetics of A. racemosus species collected in Gia Lai, Vietnam. In water extract of A. racemosus roots, UHPLC-Q-TOF-MS tentatively identified two flavonoids (Quercetin-3-glucuronide, Rutin), five steroidal saponins (Shatavarin I, Shatavarin IV, Shatavarin IX, Asparacoside, Asparanin A), and two steroids (β-sitosterol, Daucosterol). The experimental findings confirm the A. racemosus species for conservation and cultivation in Vietnam and contribute the benefits to the chemical literature of Vietnamese natural flora. A. racemosus should be further studied for pharmaceutical activities.Read more

The International Panel on Climate Change (IPCC) published a lengthy report on climate change in early 2023. This report hypothesizes five potential scenarios of greenhouse gas emissions from 2015 to the end of the century (2100) and estimates the global average temperature gain in the year 2100 from the mid-1800s for each scenario. The method of calculation in the IPCC report is obscure. The results are merely stated.The present paper provides a clear method for estimating the temperature gain each year from 2015 until 2100, along with yearly ...estimates of ppm of CO2. To facilitate the calculations, a set of scenarios of future emissions was chosen that is analogous to the scenarios used by the IPCC but is more amenable to computation.The basic assumption in this paper is that most of the temperature gain from the mid-1800s to 2015 (1.15 C – as reported by the IPCC) was due to rising CO2 concentration in the atmosphere and a relationship is thereby derived between warming and gigatons of CO2 emitted for the period: 1800s to 2015. If it is assumed that the amount of warming per gigaton CO2 from the past persists into the 21st century, then future warming in the 21st century can be estimated for any assumed future scenario of CO2 emissions.This paper provides a simple and clear estimate of yearly CO2 ppm and temperature rise from 2015 to 2100 since the 1800s for a set of scenarios that cover the likely range of future emissions.Read more

The article describes the characteristics of the resulting effector auxological morpho-functional status of primary school students, differentiated by gender and administrative-territorial characteristics.The objectives of the study included studying the auxological status of children adolescents, and primary school students in the Nizhny Novgorod region in the context of the peculiarities of the exoenvironment of residence in urban and rural areas.Materials and methods: Own data served as a source of anthropometry and physiometry indicators of... the objective population of the region. The analysis of anthropological indicators was carried out by discretizing data sets that state an objective picture of auxological indicators at the regional level, taking into account the peculiarities of anthropogenic loads characteristic of the place of residence of the observed population groups.To quantify the values ​​and statistical differences in indicators by age, gender, and administrative characteristics, the median, standard deviation, and criteria were used: Fisher, Wilks, and Mahalanobis, with an error of differences at p < 0.05.Results: The stability of the age-sex evolution of auxological indicators is shown; the age-sex and territorial dimorphism of total body sizes is shown at 7-10 years of age, with residents of rural areas lagging in the observed indicators.Hemodynamic indicators in both boys and girls significantly prevail among students living in the metropolis relative to their rural counterparts, except diastolic blood pressure.Variance analytics shows differences in the distributions of anthropometry and hemodynamics, both by age and by the urbanization factor at p < 0.001.In the observed age period, at the initial stage, hemodynamic indicators act primarily as modifiers of the metropolis and rural groups. From the age of ten, according to the standardized coefficients of discriminant functions, according to the first canonical variable, the division of series also occurs according to anthropometric characteristics, among which the greatest contribution to the division of groups is made by body weight and body length, and the hemodynamic characteristic - diastolic blood pressure - has also proven to be decisive.Conclusion: Primary school students living in rural areas and in the metropolis of the Nizhny Novgorod region determine the observed indicators ambiguously; if residents of the metropolis state greater results for all observed auxological indicators, then rural peers demonstrate, while lagging in all observed indicators, greater indicators of diastolic blood pressure, which suggests a strain on adaptation mechanisms central character.Read more

Thermodynamic and experimental modeling of calcium carbonate crystallization in a model solution of human bile has been carried out. The process of calcium carbonate (calcite and vaterite) crystallization from solutions containing bile has been studied. It is shown that differences in the phase and group composition of the samples arise depending on the synthesis parameters. It has been established that in the presence of 1 wt. % bile, calcite is formed, and an increase in the concentration of bile in the initial solution from 5 to 100 wt. % co...ntributes to the crystallization of vaterite. It is shown that the mass of the solid phase increases with an increase in the concentration of bile in the initial solution. The dissolution of the synthesized samples was performed in 0.9 wt. % NaCl solution and 0.05 M EDTA solution. It was found that the presence of bile components in the composition of solid samples reduces the rate of their dissolutions.Read more

Potential Evapotranspiration (PET) is an important variable for monitoring daily agricultural activity as well as meteorological drought. Therefore, it is necessary to investigate the influence of different options of the physical dynamical downscaling and boundary layer schemes on the simulated PET. Using the RegCM4 regional climate model, four simulations were conducted (two for each case) in the period 1997 to 2017. In all simulations, the RegCM4 was configured with 25 km resolution and downscaled by the ERA-Interim reanalysis dataset. To en...sure a reliable estimation of the PET, a calibrated version of the Hargreaves-Samani equation was adopted. A high-resolution product of the ERA5 was used as the observational dataset. Results showed that the simulated PET is insensitive either to the dynamical downscaling or the boundary layer options. Concerning the annual climatological cycle, the RegCM4’s performance varies with month and location. Quantitatively, a root mean square error lies between 1 mm and 1.6 mm day-1, the Nash-Sutcliffe efficiency between 0.2 and 0.6, and the coefficient of determination between 0.5 and 0.75. Additionally, the Linear Scaling (LS) method showed its added value in the evaluation/validation periods. In conclusion, the RegCM4 can be used to develop a regional PET map of Egypt using the LS either in the present climate or under different future scenarios.Read more

Surrealism is a means of artistic expression that places automatism at the root of creation, and it has pursued thought that is entirely free of any preconceived notions or restraints. Art and science are seemingly incompatible with each other—one is emotional, the other rational—but here the author would like to consider the sort of thinking that could emerge if science met surrealism halfway. The author would also like to present the Yoshida effect, a physical phenomenon that was chanced upon serendipitously in which microbiology ...approaches surrealism. The Yoshida effect is the formation of a fusion body called a penetron when bacterial cells collide with a nano-sized acicular (needle-shaped) material in a hydrogel friction field. The penetron as an intermediate was applied to the finely detection method of asbestos, and gene transformation method by plasmid DNA.Read more

Exchangers are thoroughly used equipment for heat transfer. These equipment play a climacteric role in variegated business administration and buildings by providing heat exchange between two fluids. However, over time, exchangers can be subject to variegated problems such as contamination and sediment build-up. This can diminish heat transfer efficiency, leading to energy waste and equipment malfunctions. Calcification is a problem that comes off when water becomes saturated with hard minerals and exceeds the solubility of these minerals. These... minerals precipitate as a consequence of water evaporation or chemical reactions and form a solid layer called limestone. Limescale can bring variegated problems in homes, business administration, and water transportation systems. Lime accumulates on heat transfer superficies, reducing the superficies area of ​​these superficies. This reduces the superficies area available for heat transfer and inhibits heat transfer. The thermal conductivity of lime is lower than water. Scale, which is the formation of a scale layer on heat transfer superficies, reduces the thermal conductivity of these superficies and prevents heat transfer. This study focuses on the types of contamination in heat exchangers, the effect of contamination on heat transfer and other factors, and methods of clogging.Read more

Markov decision process is a dynamic programming algorithm that can be used to solve an optimization problem. It was used in applications like robotics, radar tracking, medical treatments, and decision-making. In the existing literature, the researcher only targets a few applications area of MDP. However, this work surveyed the Markov decision process’s application in various regions for solving optimization problems. In a survey, we compared optimization techniques based on MDP. We performed a comparative analysis of past work of other r...esearchers in the last few years based on a few parameters. These parameters are focused on the proposed problem, the proposed methodology for solving an optimization problem, and the results and outcomes of the optimization technique in solving a specific problem. Reinforcement learning is an emerging machine learning domain based on the Markov decision process. In this work, we conclude that the MDP-based approach is most widely used when deciding on the current state in some environments to move to the next state.Read more

Pneumonia is described as an acute infection of lung tissue produced by one or more bacteria, and Coronavirus Disease (COVID-19) is a deadly virus that affects the lungs of the human body. The symptoms of COVID-19 disease are closely related to pneumonia. In this work, we identify the patients of pneumonia and coronavirus from chest X-ray images. We used a convolutional neural network for spatial feature learning from X-ray images. We experimented with pneumonia and coronavirus X-ray images in the Kaggle dataset. Pneumonia and corona patients a...re classified using a feed-forward neural network and hybrid models (CNN+SVM, CNN+RF, and CNN+Xgboost). The experimental findings on the Pneumonia dataset demonstrate that CNN detects Pneumonia patients with 99.47% recall. The overall experiments on COVID-19 x-ray images show that CNN detected the COVID-19 and pneumonia with 95.45% accuracy.Read more

Based on the recent study of the Third Thumb at the University of Cambridge, one profound question is arising: Do human beings and the human body need a Third Thumb? This article introduces briefly motor augmentation and human augmentation emerging in decades compared to human enhancement, then focuses on three concerns deriving from the methodology of engineering system design including the relationship of system and part, main function and auxiliary function, and engineering system evolution and human evolution, so as to discuss the coordinat...ion between the human body and artificial parts generated by wearable interactive technology employed in motor augmentation.Read more

An experimental investigation was carried out to study the effect of circular cross-holes on the failure behavior of unidirectional glass fiber reinforced with unsaturated polyester resin composites, varying cross-ply laminates that were subjected to axial tensile load. This paper deals with the effects of the circular notch and the number of plies on nominal tensile and net tensile strengths. Tensile strengths were investigated for composites with cross-ply([0/90]. [90°/0°/90°] and [0°/90°/0°].90°), orientation and ...varying the laminate layers with a central hole, and effects of volume fraction and number of ply on mechanical properties for un-notched (smooth) and notched specimens were also studied. The results showed that increasing the number of plies has a marginal effect on tensile strength values. The fraction of volume has significant effects and for increasing the number of plies about 9% decreases in nominal tensile strength and about 11% decrease in the net tensile strength was observed. The same results were obtained with finite element analysis.Read more

In this paper, we present a deep CNN-based approach for multi-class classification of three-dimensional (3-D) objects using phase-only digital holographic information. The 3-D objects considered for the multi-class (four-class) classification task are ‘triangle-square’, ‘circle-square’, ‘square-triangle’, and ‘triangle-circle’. The 3-D object ‘triangle-square’ is considered for Class-1 and the remaining 3-D objects ‘circle-square’, ‘square-circle’, and ‘tr...iangle-circle’ are considered for Class-2, Class-3, and Class-4. The digital holograms of 3-D objects were created using the two-step Phase-Shifting Digital Holography (PSDH) technique and were computationally post-processed to obtain phase-only digital holographic data. Subsequently, a deep CNN was trained on a phase-only image dataset consisting of 2880 images to produce the results. The loss and accuracy curves are presented to validate the performance of the model. Additionally, the results are validated using metrics such as the confusion matrix, classification report, Receiver Operating Characteristic (ROC) curve, and precision-recall curve.Read more

This study explores the imperative to modernize cloud computing in response to evolving technological landscapes and business demands. The research examines key areas requiring urgent attention to maintain competitive edge and operational efficiency in the digital era. We investigate the critical need for data center upgrades to accommodate emerging technologies and increased workloads. The study also delves into enhanced security measures and data privacy compliance protocols necessary to protect sensitive information in an increasingly comple...x threat environment. Furthermore, we analyze strategies to meet the growing demand for performance and scalability, ensuring that cloud infrastructure can adapt to fluctuating business needs. The research emphasizes the importance of maintaining system reliability to minimize downtime and maximize productivity. Additionally, we explore the potential of hybrid cloud integration to enable innovation and reduce costs. The purpose of this study is to provide a comprehensive overview of the challenges and opportunities in modernizing cloud computing, offering insights for organizations seeking to optimize their cloud strategies. Key findings highlight the significance of proactive infrastructure management, the adoption of advanced security frameworks, and the implementation of flexible, scalable architectures. This research contributes to the body of knowledge on cloud computing modernization, serving as a valuable resource for IT professionals, business leaders, and researchers in the field.Read more

The global move towards Electric Vehicles (EVs) marks a crucial step towards sustainable transportation. However, effectively integrating EVs into the current infrastructure demands more than technological advancements. One of the key challenges is optimizing the routing of EVs to minimize costs and environmental impact. This editorial examines the role of Machine Learning (ML) in addressing the electric vehicle routing problem (ESVRP), highlighting its potential to transform cost optimization and sustainability in transportation. Routing is a ...fundamental part of transportation logistics, influencing efficiency, cost, and environmental impact. While traditional internal combustion engine vehicles have established routing systems, EVs present unique challenges such as limited battery capacity, longer refueling times, and fewer charging stations. These factors require advanced routing solutions that can dynamically adapt to various constraints.Read more

Studies of Mars missions over the past thirty years lacked credible cost estimates, so the total mass of materiel delivered to Low-Earth Orbit (LEO) was typically used as a rough measure of relative mission cost because the complexity of the mission was thought to be roughly proportional to the initial mass in LEO (IMLEO). Historically, high launch costs led to large investments in space hardware development which led to high space mission costs. Reducing mass became the central theme of space mission engineering. We are now entering a new era ...where launch costs no longer have the impact that they would have two decades ago. Launch costs are coming down to the point where we must ask ourselves whether it now makes sense to bring ascent propellants and life support resources from Earth (with higher reliability as a bonus), as opposed to using in situ propellant production and cycling of life support resources.This paper compares various options for bringing ascent propellants and life support resources from Earth vs. developing in situ. In short, it examines the “take it or make it” options for both technologies. For ISPP, the answer is clear: Mars ISPP is not worth the investment when launch costs are low. For life support, the most robust option is to bring life survival resources from Earth, and only use cycling to upgrade the quality of life for the crew.Read more

The satellite-to-ground laser communication link plays a crucial role in addressing the technical bottleneck of high-speed information transmission between satellite and ground networks. However, the impact of atmospheric channel conditions poses challenges to the link performance. To overcome these challenges, this paper presents a comprehensive analysis of the characteristics and influencing factors of the satellite-to-ground laser communication link. It summarizes methods for optimizing the transmission performance of the link and proposes a...pproaches for optimizing, monitoring, and predicting the link performance through factors such as the optimization of ground station quantity and location, link availability, link transmission quality, and adaptive coding and modulation. These methods enable the optimization of the transmission performance of the satellite-to-ground laser communication link, thus significantly contributing to the realization of high-speed and reliable laser communication between satellite and ground networks.Read more

Introduction: Physical activity is a natural need of every human being, brings significant health benefits, and adapts the body to exertion. Lifestyle is based on conscious choices that affect health. Health-promoting activities such as regular physical activity, healthy and wholesome meals, adequate recovery, and stress reduction in daily life minimize the risk of future behavior. The purpose of this study was to evaluate the Physical Activity (PA) and lifestyle of female students of the Faculty of Health Sciences (FHS) at the Tarnow Universit...y of Applied Sciences surveyed in February and March 2023. Among other things, the time, frequency, and places of physical activity were investigated, and did the physical activity and lifestyle of female students differ according to the field of study undertaken and between first- and fourth-year physiotherapy students?Methods: The survey was conducted among 167 female students of physiotherapy, physical education, nursing, and cosmetology at the FHS. Using a diagnostic survey, a questionnaire survey was conducted, the research tool was a survey questionnaire of our design, which included questions on physical activity, lifestyle, and sociodemographic data.Results: The results indicate that the female students led active and healthy lifestyles. The vast majority, more than 90%, of the female students surveyed were aware of how physical fitness and their health-promoting activities, as well as knowledge related to these issues, would be important in their future profession. Regarding the field of study and the physical activity undertaken, a statistically significant difference (p < 0.05) was shown, it was the female students from physical education who were the most active among all women.Conclusion: It can be concluded that the chosen field of study influences the declared health-promoting behavior of female students and that the physical activity undertaken and the healthy lifestyle are related to the choice of future profession, while the field of study and the year of the study did not differentiate the lifestyle of female students.Read more

Risk is a variation of performance in the presence of events and it can negatively impact socioeconomic system of countries. Statistical evidence here shows that high public debt reduces health expenditures over time and increases the vulnerability and risk of European countries to face health emergencies, such as COVID-19 pandemic crisis. Overall, then, findings suggest that high public debt weakens healthcare and socioeconomic system of countries to cope with crises, such as COVID-19 pandemic, conflicts, natural disasters, etc. JEL Codes...: I18; H12; H51; H60; H63Read more

Artificial Intelligence (AI) is revolutionizing healthcare by enhancing patient outcomes, reducing costs, and increasing the efficiency of medical professionals. This mini-review explores the diverse applications of AI in healthcare, including disease diagnosis, personalized treatment plans, and patient survival rate predictions. AI technologies such as Machine Learning (ML), deep learning, Natural Language Processing (NLP), and Robotic Process Automation (RPA) are becoming integral to modern healthcare practices. These technologies enable earl...y disease detection, particularly in cases like cancer, by analyzing medical images and patient data, leading to more effective and personalized treatment strategies. Additionally, AI can predict patient outcomes by analyzing large datasets from electronic health records, providing valuable insights that can inform clinical decisions. However, the integration of AI in healthcare also presents significant ethical challenges. Issues such as data privacy, algorithmic bias, lack of transparency, and the potential for increased health inequalities need to be addressed. The World Health Organization (WHO) has provided guidelines emphasizing the ethical use of AI, highlighting the importance of designing AI systems that respect human rights and promote equity. As AI continues to advance, it is crucial to ensure its responsible and transparent use to maximize benefits and minimize risks. This review underscores the transformative potential of AI in healthcare while calling for vigilant ethical considerations to ensure that AI technologies are implemented in a manner that enhances patient care and upholds ethical standards.Read more

The agricultural sector is a large consumer of synthetic chemical products, especially fertilizers and plant protection products. Therefore, an emerging concern nowadays is to reduce chemicals’ use in agriculture. One of the approaches is to reduce the doses of plant protection products, as much as possible, while keeping the treatments’ efficacy. The present work presents the antifungal action of three commercial plant protection products, tested at recommended as well as reduced doses, against important phytopathogenic molds of th...e Fusarium genus. In vitro, results have shown that two of the tested products could be used at reduced doses while keeping their antifungal activity. The commercial pesticide containing prothioconazole 53 g/L, spiroxamine 224 g/L, and tebuconazole 148 g/L mixture was able to inhibit completely the growth of three virulent F. culmorum strains, even when fungicide treatment was applied in 25% reduced dose. Lower efficacy was seen on F. graminearum strains, however, there were no significant differences (p < 0.05) between the commercially recommended dose and the 25% reduced dose. Another efficient pesticide in Fusarium control contains triadimenol 43 g/L, spiroxamine 250 g/L, and tebuconazole 167 g/L. Tested in a reduced dose (28.6% less than the commercial recommended dose) it completely inhibited the F. graminearum Fg183 (DSM 4527) strain and inhibited the growth of various F. culmorum strains with at least 97.50% efficacy. However, there are some fungal strains, such as the aggressive F. graminearum Fg96 strains that were less susceptible to pesticide treatments even at commercially recommended doses of fungicides.Read more

Background: Levetiracetam is an anti-epileptic drug that works by modulation of synaptic neurotransmitter release through binding to the synaptic vesicle protein 2A. Levetiracetam is generally well tolerated. Common side effects of levetiracetam include lethargy, drowsiness, headaches, and mood changes. Rhabdomyolysis and an increase in Creatine Kinase (CK) levels are one of the rarely reported effects of levetiracetam.Case presentation: We present a case of a 20-year-old patient with previously known epilepsy (non-compliant with medicine) who ...presented with a seizure. The patient was given 1 gram of levetiracetam in the emergency department and was kept at a maintenance dose of 500 mg twice a day. The workup revealed acute kidney injury and raised levels of creatinine kinase that peaked at 19,757 IU/L 72 hours after levetiracetam was started. Levetiracetam was later switched to lamotrigine and aggressive intravenous hydration was done. Gradual improvement of CK level was noted accompanied by improvement in renal function.Conclusion: Only a few cases of levetiracetam-induced rhabdomyolysis have been reported worldwide. Our case report highlights the importance of monitoring creatinine and CK levels while treating patients with levetiracetam as rhabdomyolysis can be asymptomatic with a rise in CK levels only.Read more

Interpersonal and intrapersonal face variation interference caused by multiple poses is challenging for distance-based face recognition systems. In this paper, we investigate the face-feature distance distribution for Chinese multi-pose faces. The simulation shows that the number of individuals in the gallery database will greatly affect the recognition performance for near-profile face images. It also provides a prediction of the Top-N occurrence rates in different gallery-size environments.