Search

Taking the Xinshan iron ore mine as an example, this paper, based on collecting and analyzing the actual production data and similar simulation test data of this iron ore mine, analyses various factors affecting ore depletion by bottomless column segmental chipping method by using hierarchical analysis method (AHP) and fuzzy comprehensive evaluation method (FCE), and establishes an evaluation system for comprehensively assessing the depletion of the ores. The results show that structural parameters, blasting parameters, loading parameters, and geological conditions are the main factors affecting ore depletion. The structural parameters are the most important factors, accounting for 35%. With the increase of the released amount, the released grade gradually decreases, the depletion rate gradually increases, and the comprehensive evaluation value gradually decreases. The released body is an approximate ellipsoidal block with a wide upper and narrower lower part. The end wall plays an obstructive role in the flow of the bulk body, which makes the end of the released grade higher and the middle of the released body higher. At the same time, due to the influence of blasting and shovel loading, the particles in the release body show some sorting phenomena. This paper provides a scientific basis and reference for predicting and controlling ore depletion in the bottomless column segmental chipping method. [ABSTRACT FROM AUTHOR]

The article has the objective to compare poverty rates of elderly people between 2018 and 2020, after the universalization of the non-contributory pension during the 2018-2024 presidential period in Mexico, in order to know if there is a change on elderly people's poverty rates. Also, the article aims to know if this policy change has a regressive impact in the whole pension system distribution. The paper uses as a reference for the analysis the International Labour Organization (ILO) guidelines. It compares poverty of different social groups of elderly people in 2018 and 2020 using the National Survey of Households Income and Expenditure. The paper concludes that elderly people's poverty situation is better in 2020. However, there is an increase on inequality in pensions. [ABSTRACT FROM AUTHOR]

Starting from a movement of attraction and repulsion between the ideas of Mário de Andrade and Walter Benjamin on cinema, in this paper are presented simultaneities in the reflection of both authors on the new art. With this aim, it develops a reflected reading of Mario's essays of the 1920s, contrasting with the Benjaminian discussion of the following decade. Although conceptually about Art as Photography the author are not in agreement each other --about a new aesthetic sensitivity that is established in modernity where the image begins to place itself as an aesthetic foundation even in non-cinematographic--, Benjamin's analytical hypothesis may sustain a reading of a novel like Macunaíma, by Mario. Then, the paper discusses the tension in the Brazilian essayist and novelist Oeuvre, paying attention to how Art as Photography stands as power in its own aesthetics. [ABSTRACT FROM AUTHOR]

Objective: Due to the alarming rise in COVID-19 cases every day in India, numerous academics are already developing a variety of math-based estimation models to forecast the pandemic future course. This paper makes use of publicly available data to anticipate certain COVID-19 trajectories in India. Methods: We used the Auto-Regressive Integrated Moving Average Model, a time series model, to anticipate the number of COVID-19 infected cases every day soon. People need to consume nutritious food that is well-balanced and contains the right number of calories, nutrients, as well as vitamins for strong development, bearing in mind that sustaining and repairing bodily tissues is the goal while preventing unfavorable illnesses and disease. Results: Recent studies have shown that healthy eating can help lower the possibilities of developing cancer, cardiovascular disease and for COVID patients. Therefore, an optimization strategy and LINDO software was used to solve the model. This study offers an exhaustive daily meal plan created especially for hospital patients, acting as a helpful resource for school administrators. With six different food choices, the diet plan makes sure that you get all the nutrients you need each day at a reasonable price. Conclusions: The model is solved using LINDO software in the study, which shows how effective it is when compared to other heuristic techniques like biological algorithms. It is determined through thorough investigation that the chosen meals are both financially and nutritionally feasible to serve in ho spital settings. Hospital patients make up the study's participants, and each day's total cost comes to Rs109.34. This cost makes it possible to deliver meals that are minimally more costly but of higher quality, improving the patients' overall nutritional value. [ABSTRACT FROM AUTHOR]

This paper attempts to discuss some of the challenges ahead for the so-called ageing society, emphasising two axes of analysis. One refers to the fact that it is not enough just to indicate demographic, social, population or other trends to guarantee acceptance in the social imaginary of the ageing society. The quantitative aspect is a necessary but not sufficient condition for accepting the challenges still pending in the ageing society. This point is highlighted by another axis of analysis, which has to do with the "resurrection" of ageism since the health and political events surrounding the coronavirus, which once again placed older adults in stereotypical roles of decrepitude and ruin. All of the above indicates that a hard work of social, governmental and state intervention has to be projected in order to create the minimum foundations of the ageing society. [ABSTRACT FROM AUTHOR]

Noninvasive DNA sampling has become increasingly popular in wildlife research and conservation because it allows scientists to gather valuable genetic information without disturbing or harming the animals. However, the correct identification of the species or individuals in the sample is virtually impossible when using this kind of sampling. Consequently, it becomes essential to consider the errors hidding true identities in order to improve the quality of the data. Errors, if left unaddressed, can have a considerable impact on the accuracy of statistical inferences drawn from the data. This paper endeavours to review some research about misidentification problems and how Bayesian models and Markov Chain Monte Carlo (MCMC) methods can be applied. In addition, a hypothetical scenario is presented to illustrate how genetic material can serve as unique identifier of individuals, and to highlight the potential dificulties that may arise if a proposal distribution for the MCMC simulations is inappropriately chosen. [ABSTRACT FROM AUTHOR]

This paper suggests binary-type exponential estimator for estimating - finite population mean under simple random sampling using auxiliary information. The proposed estimator includes number of estimators as its member which has been listed. Mathematical expression for the bias and mean square error of proposed estimator have been derived up to first order approximation. An empirical study was carried out using some existing population data sets and it was found that the proposed estimator performed better than other existing estimators considered in the study including linear regression estimator. [ABSTRACT FROM AUTHOR]

Introduction: The phytocompounds of curcumin, epicatechin-gallate, luteolin-7-glucoside, and zingerol extracted from Garlic, Turmeric/Curcuma, Green tea, Welsh onion/Leek, and Ginger, respectively, were studied in this paper. Therefore, the purpose of this research is evaluating the effective physicochemical properties of these herbal products to to fight against the SARS-CoV-2 infection. Materials and Methods: The properties of these phytocompounds including dipole moment, thermochemistry, chemical shielding tensors, charge density, electrostatic potential and electron donating and electron accepting through frontier orbitals have been computed due to density functional theory (DFT) and m062x/cc-pvdz pseudo=CEP method towards the drug delivery system. Results and Discussion: Thermochemical properties have evaluated the combined group contribution and atom connectivity index with uncertainties in the estimated property values. The minimum Gibbs free energy of -1014.602×10³ and -990.992×10³ kcal·mol-1 for luteolin-7-glucoside and epicatechin-gallate, respectively, has been calculated versus dipole moment, which can indicate the most stability of these structures as natural antiviral medications. In fact, it can be established how phytocompounds of allicin, curcumin, epicatechin-gallate, luteolin-7-glucoside, and zingerol extracted from Garlic, Turmeric/Curcuma, Green tea, Welsh onion/Leek, and Ginger, respectively, may act as the efficient antiviral of Coronavirus disease receptor. The NMR analysis has demonstrated the critical points of the principal components of medicinal plants for binding to the active site of TMH (Tyr160-Met-161-Hi162) COVID-19, while each active atom of O or N as the electronegative atoms for binding to the H remarks the maximal shift in all steps in the NMR spectrum. Moreover, UV--VIS spectra reported a positive induction of antioxidant compounds, such as polyphenols and flavonoids. Conclusions: Thus, these natural drugs may be either a new or safe treatment or even are employed as antiviral nutraceuticals in elevating immunity and producing endurance to virus infectionsm. [ABSTRACT FROM AUTHOR]

This article examines the relationship between Wyndham Lewis's Vorticism movement and Shakespeare, focusing on Lewis's appropriation of Shakespeare's play Timon of Athens and its impact on Vorticism's visual aesthetics. In analysing Wyndham Lewis's avant-garde approach, this article contrasts it with other artistic movements of the time --namely, Futurism and Cubism-- and explores Lewis's interest in the "automaton" and the "machine", and how this fascination is linked to his reading of Shakespeare and his views on World War I. Overall, the paper demonstrates how Shakespeare's work played a significant role in the development of Vorticism's unique aesthetic vision during a time of great social and political upheaval. [ABSTRACT FROM AUTHOR]

In this paper I will compare the philosophical notions of "active love" and "charity" present in the works The Brothers Karamazov (1879-1880) by Fyodor Dostoevsky (1821-1881) and El Cristo de Espaldas (Backwards Christ; 1952) by Eduardo Caballero Calderón (1910-1993). I will analyze both perspectives within the historical context of their respective periods, as well as within their own narrative structures. I also consider them as personal expressions of metaphysical-social visions whose roots can be found in the religious and philosophical works of authors as Vladimir Solovyov, in the case of Dostoevsky, and Pierre Teilhard de Chardin, in the case of Caballero Calderón. The main goal is to demonstrate how both positions provide an ethical and collective proposal against the selfishness and violence of the world, through an approach that intermingles a permanent social action and a spiritual metamorphosis. Two visions that, I trust, continue to have relevance for the contemporary reader. [ABSTRACT FROM AUTHOR]

In the context of the correlations between literature and secularization in Spanish American Modernism, in this paper I aim to identify the main ways in which Clemente Palma questions traditional morality in Cuentos Malévolos. By analyzing first some paratexts of the book, four main ways are identified for the revision of that morality, a rereading that is explained from the positivist and Nietzschean parameters that Palma takes as a reference. At the same time, and as a counterpoint, an attempt is made to discover some of the contradictions of this revision, which are due to both the limitations of Palma's own ideological framework and to the demands of the secularization discourse itself, which always needs the sacred to define itself. [ABSTRACT FROM AUTHOR]