Natural Form Research Articles

APPLICATION OF IONIZING RADIATION IN THE PRESERVATION AND CONSERVATION OF TAXIDERMIED ANIMAL SKINS IN NATURAL HISTORY MUSEUMS<i></i>

The great interest in the development of research involving ionizing radiation aims to significantly increase the conservation of the skins of taxidermized animals, both for scientific collections and on display, causing their infection and disinfestation, without altering their originality, reducing the use of chemical products, presenting a safe and efficient technology. The preservation of taxidermied mammals has been widely used for educational, scientific and Museum display purposes. However, prolonged exposure to environmental factors or the excessive use of chemicals to store these materials in the collection can affect the integrity of the skin of these animals. In this study, we investigated the effects of gamma radiation on the structure and composition of the skin of taxidermied mammals, with the aim of contributing to a better understanding of conservation processes and the potential risks they may entail. Taxidermy is an animal preservation technique that has been used for centuries, allowing specimens to be arranged in their natural form and/or preserved for scientific studies. Samples of skin from animals from the Brazilian flora were selected, deer, coati, prawn and bison, and these samples were irradiated at doses of 1, 3, 5, 10 and 15 kGy. After gamma irradiation, they were characterized by colorimetry, scanning electron microscopy (SEM), optical microscopy (OM), infrared microscopy (FTIR) and mechanical analysis. The results show that the doses of gamma irradiation that the samples were subjected to did not compromise their physical and chemical integrity. This indicates the possibility of using gamma radiation for disinfestation and disinfection.

Soil improvement in the Santo Domingo canton in the San Gabriel del Baba sector on the property of Captain Ruben Recalde with organic fertilizers

Introduction: organic fertilizers are essential for sustainable agriculture. These materials, of plant or animal origin, decompose and release nutrients to the soil gradually.Objective: to determine the physical and chemical characteristics of the soil on Captain Rubén Recalde's property before and after the application of organic fertilizers.Method: an observational, descriptive and cross-sectional study was carried out related to the physical and chemical characteristics of the soil on Captain Rubén Recalde's property before and after the application of organic fertilizers. The sample will consist of 32 people from said territory selected by a non-probabilistic convenience samplingResults: 38 % of the population surveyed says that they have been involved in agriculture for less than 5 years. 72 % of people say that they do use chemical fertilizers, 84 % of the population considers that organic fertilizer is the best. 44 % tell us that they use fertilizers on their crops every 3 months. 94 % say they would recommend the use of organic fertilizers to others, 60 % say that organic fertilizers release nutrients more slowly and steadilyConclusions: organic fertilizers are a natural form of fertilizer produced from organic materials of plant or animal origin. Fertilizers are intended to nourish the soil and improve fertility, which in turn provides favorable conditions for plant growth and development.

생성형 AI를 활용한 라이프스타일 호텔 로비 공간 바이오필릭 디자인에 시각화 관한 연구 - 자연의 간접 경험 속성을 중심으로

With the accumulation of data and advancements in algorithms in the 21st century, artificial intelligence has become an essential tool for enhancing creativity and efficiency in architecture and spatial design. The aim of this study is to visualize indirect natural experiences through biophilic design in lifestyle hotel lobbies using artificial intelligence, thereby exploring diverse possibilities during the early stages of the design process to enhance efficiency. This study specifically focuses on lifestyle hotel lobbies that resonate with the MZ generation. It examines methods for expressing indirect natural experience attributes of biophilic design and visualizes these through Stable Diffusion. The research methodology involves a review of academic literature to understand biophilic design and artificial intelligence, followed by the application of Stable Diffusion to visualize biophilic design in hotel lobby spaces. The results generated were analyzed to propose potential application strategies. In the AI-generated visualization of the hotel lobby, biophilic design was studied based on four indirect attributes: natural images, materials, colors, forms, and imitations. It is expected that advanced fine-tuning through Stable Diffusion will improve the visual representation of these natural elements.

Collaborative Problem-Solving for the ‘Polycrisis’

The paper focuses on the “Polycrisis,” which is first defined and then positioned as the context for a subsequent discussion about both the formal and social conditions for effective collaborative problem-solving. It then highlights the potential for diagrammatic reasoning to contribute to solving what some commentators choose to call ‘wicked-problems’ including those associated natural, economic, and social forms of fragility. This discussion is informed by pertinent advances in applied category theory, which has a wide range of application-domains including cyber-physical systems, scientific systems, dynamical systems, software engineering, and machine learning. The formal constructs and techniques to be surveyed include optics and parametric lenses, as well as David Spivak’s organisational categories. Optics and lenses have not only been applied to software engineering but also to the modelling of dynamical systems and machine learning. They possess a diagrammatic representation (as string diagrams), which serves as an aid in their deployment (e.g. AlgebraicJulia, Symbolica AI, Haskell applications). The paper argues that these developments should assist users in their collaborative modelling of the Polycrisis by: (i) integrating machine learning, differential programming, and calibration and simulation of dynamical systems; (ii) accounting for subsystem interactions within a larger system that features different stock-flow rates; (iii) accommodating non-linear mappings and weight-sharing; (iv) formally supporting a variety of stochastic influences over the systems that are being modelled; and, (iv) imposing on the whole, the internal logic associated with a topos.

Aeroelasticity Analysis of Turbine Blade with Asymmetric Outlet Pressure

Elements of high-power steam turbines are subjected to significant unsteady loads, in particular, rotor blades of the last stages. These loads can, in some cases, cause self-excited oscillations, which are extremely dangerous and have a negative impact on the efficiency and service life of the blade cascade. Therefore, when designing new or modernizing existing steam turbine stages, it is recommended to study the aeroelastic characteristics of the blades. The paper presents the results of numerical analysis of the aeroelastic characteristics of the rotor blade cascade of the last stage of a 380 MW steam turbine, taking into account the asymmetric pressure distribution behind the stage. The pressure distribution is caused by the influence of the exhaust hood and was obtained experimentally. The analysis used a proven numerical method for simultaneously solving the coupled problem of unsteady aerodynamics and elastic oscillations of blades, which allows predicting the amplitude-frequency spectrum of unsteady loads and blade oscillations in a viscous gas flow. The modeling results are presented in the form of displacements of the peripheral blade section and aerodynamic forces acting on this section, as well as their spectra. Also, the dependence of the aeroelasticity coefficient on the inter-blade phase angle of oscillation was obtained. The results of the calculations showed the absence of flutter and self-oscillations according to the first natural form of blade oscillations in the partial mode of operation of a steam turbine. The analysis of the results did not reveal a significant effect of the pressure asymmetry at the outlet of the cascade, due to the significant difference between the excitation frequencies caused by the non-uniformity and the natural frequencies of blade oscillations.

Bactericidal Metal-Organic Gallium Frameworks - Synthesis to Application.

Gallium, a trace metal not found in its elemental form in nature, has garnered significant interest as a biocide, given its ability to interfere with iron metabolism in bacteria. Consequently, several gallium compounds have been developed and studied for their antimicrobial properties but face challenges of poor solubility and formulation for delivery. Organizing the metal into three-dimensional, hybrid scaffolds, termed metal-organic frameworks (MOFs), is an emerging platform with potential to address many of these limitations. Gallium MOFs show improved solubility and antibacterial potency relative to the free metal due to their ability to coload antibiotics and functional biomolecules. Synthetic strategies are equally versatile, with several rapid, cost-effective, and scalable methods available. In this review, we present the advantages and disadvantages of these various synthetic strategies with respect to their antibacterial efficiency, product purity, and reaction control. The activity of gallium-based MOFs against Gram-positive and Gram-negative pathogens in mono- and combinatorial therapeutic settings is discussed in the context of their mechanisms of action and structure-function-performance relationships collated from recent studies. While gallium MOF development as antibacterials is still in its nascent stages, the examples discussed here highlight their potential as a novel class of therapeutics poised to impact the fight against pan-drug-resistant bacterial pathogens.

On proper motions of the flat cosserat type structure

The problem of natural vibrations of a flat strip of anisotropic two-dimensional Cosserat medium under the assumption of small deformations and in the absence of external forces and moments is investigated. It is shown that two natural frequencies correspond to each wave number. The natural forms of oscillations and the relationship between them are found. It is concluded that at oscillations with the lower of the two frequencies the inclusion rotations accompany the longitudinal displacement of the strip, and at oscillations with a higher frequency they prevent it. The obtained results are illustrated on the example of a medium model with specific parameter values. The plots show the dependences of natural frequencies, phase and group velocities on the wave number, and their asymptotic behavior is studied.

How is Logical Analysis Viable?

The idea and the actual exercises of logical analysis as a philosophical method are at the heart of the emergence of analytic philosophy in the beginning of the 20th century. Although analytic philosophy is most commonly said to emerge with the critique devised by G. E. Moore and Bertrand Russell of the then-dominant idealist currents of philosophy in Britain, the central conception of analysis at work in this process is not the dominant traditional conception of analysis as decomposition of concepts, but a fairly new, distinctive conception which we find to be exemplified exclusively in Frege’s and Russell’s works (specifically Frege 1879, 1893 and Russell 1905). This distincive conception has been specified under a few various rubrics, such as paraphrastic or transformative-interpretive analysis, to separate it not only from the decompositional but the regressive conception as well, the latter characterizing the analysis-synthesis method of ancient Greek geometry. The present paper first locates logical analysis (as a philosophical method) in this picture, by proposing to define it as a definite kind of paraphrastic (or transformative/interpretive) analysis, the kind where the language in the analysans position is a logical language. The paper highlights the fact that the whole point of analyzing natural language forms by means of translating them into a logical language is essentially solving problems of inference – i.e. determining whether certain natural language sentence types follow from/contradict with/entail certain others, and shows that this particular conception of analysis is not as self-consistent a notion as it may first seem to be. The key to the argument is the undeniable connection between the meaning (at large) of a sentence form and the principal inferential relations that the sentence form is supposed (pre-analytically) to enter into with other related forms. The argument employs as a clear example the common modern logical analysis of the so-called problem of existential import of traditional categorical forms in order to problematize the viability of logical analysis, and concludes that one of the necessary conditions of the self-consistency (viability, possibility) of logical analysis is the acceptance of a certain negative thesis about meaning.

Biochar promotes the dissolution of inorganic inactive phosphorus by mediating the bacterial community during corn stover and cattle manure composting.

Phosphorus (P) is a macroelement primarily found in insoluble forms in nature. Enhancing the effectiveness of P is crucial for sustainable agricultural development and ecosystems. The research employed a combination of sequential extraction methods, high-throughput sequencing techniques, microbial culturing, and ecological network analysis of bacterial communities, along with module comparison, to explore the dynamics of different P fractions in calcareous soils. The objective of incorporating biochar into the composting of maize stover and cattle dung was to uncover potential microbial processes that could facilitate the activation of inorganic non-labile P. Findings revealed that during the composting process with biochar, bacterial populations played three distinct roles in the transformation of inorganic non-labile P compounds (such as occluded P and Ca10-P). Primarily, the introduction of biochar significantly increased both the diversity and abundance of bacterial communities. Additionally, it enhanced the ability of phosphate-solubilizing bacteria to maintain the structure of bacterial ecological networks by boosting their complexity, interconnectedness, and stability. Moreover, the incorporation of biochar stimulated the P-related metabolic activities within the bacterial community, significantly enriching key metabolic pathways such as the citrate (TCA) cycle, glycolysis/gluconeogenesis, the pentose phosphate pathway, galactose metabolism, starch, and sucrose metabolism, as well as the metabolism of amino and nucleotide sugars. Moreover, biochar addition intensified the connections between key operational taxonomic units (OTUs) and non-labile P while simultaneously increasing the total organic carbon concentration and enhancing alkaline phosphatase activity. This study provides valuable insights for enhancing P effectiveness in calcareous soils.

MACHINING OF PARTS AND REDUCING THE CONTENT OF COPPER CATIONS FROM AN AQUEOUS SOLUTION BY SORPTION ON A SOLID LAYER USING NATURAL AND MODIFIED CLINOPTILOLITE

Galvanic plating is one of the most widespread methods of surface treatment of metal parts. The process consists of immersion of modified parts in an electrolytic bath. These processes produce wastewater with a high metal content. One of the methods of reduction metal content in water is sorption on a solid layer. Natural zeolites in natural form, but also in modified form, can be used for these purposes. To be able to design organization of the cleaning process, it is necessary to know the kinetic course of sorption. The article contains the results of laboratory experiments aimed at determining the sorption parameters of the sorption of copper and nickel cations on natural zeolite - clinoptilolite, and on modified Fe-clinoptilolite.

Od satyry do naturalizmu – krótkometrażowa filmografia Ante Babai

This article aims to analyze and interpret Ante Babaja’s short films (both fiction and documentary). These works can be seen as a kind of laboratory of themes and means of expression representative of the Croatian director’s work. The reconstruction undertaken reveals the evolution of Babaja’s artistic path, which can be simply described as a shift from a satirical to a naturalistic form of representation. Both tendencies are synthesized in later feature-length productions, along with a number of artistic devices specific to Babaja’s work.

On Building Fine-Grained One-Way Functions from Strong Average-Case Hardness

Constructing one-way functions from average-case hardness is a long-standing open problem. A positive result would exclude Pessiland (Impagliazzo ’95) and establish a highly desirable win–win situation: either (symmetric) cryptography exists unconditionally, or all NP problems can be solved efficiently on the average. Motivated by the lack of progress on this seemingly very hard question, we initiate the investigation of weaker yet meaningful candidate win–win results of the following type: either there are fine-grained one-way functions (FGOWF), or non-trivial speedups can be obtained for all NP problems on the average. FGOWFs only require a fixed polynomial gap (as opposed to superpolynomial) between the running time of the function and the running time of an inverter. We obtain three main results: Construction. We show that if there is an NP language having a very strong form of average-case hardness, which we call block finding hardness, then FGOWF exist. We provide heuristic support for this very strong average-case hardness notion by showing that it holds for a random language. Then, we study whether weaker (and more natural) forms of average-case hardness could already suffice to obtain FGOWF and obtain two negative results: Separation I. We provide a strong oracle separation for the implication (∃ exponentially average-case hard NP language ⇒∃ FGOWF). Separation II. We provide a second strong negative result for an even weaker candidate win–win result. Namely, we rule out a relativizing proof for the implication (∃ exponentially average-case NP hard language whose hardness amplifies optimally through parallel repetitions⇒∃ FGOWF). This separation forms the core technical contribution of our work.

La interpretación de la noción marxista de “forma natural” en Bolívar Echeverría: significados, definición y sentido crítico

The article explains the meaning of the notion of “natural form” of use values, formulated by Marx, recovered especially by the Ecuadorian philosopher Bolívar Echeverría. The purpose of the text is to analyze Echeverría’s reinterpretation of the notion of “natural form” of the work process as a structural behavior of human existence, through an analysis of the meanings of the term, its definition and characterization of its main elements. The text is divided into six sections, each of which has the following topics: 1) the description of the texts by Marx and Echeverría on which we base ourselves; 2) the relevance of the notion of “natural form” in Marx’s works; 3) we try a phenomenological approach to the research that Marx carried out from critical materialism to reveal the protosocial substratum that underlies the “value form”; 4) we address the ambiguity of the term “natural” in our topic; 5) we explain the transnatural characteristic of human existence and the foundation of the social fact; 6) we make nine clarifications that are relevant to Echeverrian definition of the “natural form” of the work process; and 7) in the last section we make some critical notes whose objective is to avoid a substantialization of the notion of “natural form”, in addition to distinguishing between the critical function of this notion with respect to the possible readings that associate it with a form in itself of resistance.

Yogurt with cornflower (Centaurea cyanus L.) petals as a source of antioxidant compounds and dietary fiber: physicochemical and spectroscopic research during storage.

An extensive study was undertaken using the petals of cornflower (Centaurea cyanus (Cyani flos)) flowers in yogurt production as a source of dietary fiber and antioxidant compounds, and as a natural dye, taking into account a 21-d refrigerated storage period. An additional aim of the study was to use cornflower petals in natural form rather than an extract. Four forms of cornflower petals: fresh, dried, frozen, and freeze-dried, were tested. In terms of physicochemical properties, including the content of dietary fiber and bioactive compounds, and antioxidant status, the freeze-dried form proved most beneficial. Two variants of yogurts were made, i.e., without the addition of cornflower petals (control) and with cornflower. The yogurts were stored for 21 d and analyzed every 7 d (at 0, 7, 14 and 21 d). In total 4 forms of petals of cornflower flowers, 3 batches of bulk cow milk and 288 yogurt samples were covered by research. Freeze-dried cornflower petals added to yogurt contributed to a significant increase in the content of total protein (by approx. 4%), fiber (form 0.00 to 0.56 g/100 g), and selected bioactive compounds, including amino acids (by approx. 2% in total), vitamin C (over 3-fold), and phenolic (by approx. 16% in total) and mineral (on average by 8%) compounds, as well antioxidant activity. The presence of antioxidant compounds not only in the processed milk (sulfur amino acids, whey proteins (especially β-lactoglobulin), vitamins A, E, and C, or β-carotene) but also in the petals (sulfur amino acids, vitamin C, and phenolic compounds) contributed to a significant increase in the antioxidant activity of fresh yogurt with cornflower (day "0" of storage), i.e., FRAP - by 18%, DPPH - 50%, and ABTS - 60%, in comparison with the control yogurt. Significant changes in the content of selected bioactive compounds occurred during 21-d storage, which effected on the antioxidant activity, i.e., increased of FRAP and ABTS by 20%. In addition, FTIR infrared spectra were taken for the yogurts. The spectroscopic analyses showed mainly changes in the intensity of vibrations characteristic of this type of product, associated with polysaccharide structures, as well as vibrations associated with protein structures contained in dietary fiber. The regions with the most pronounced changes in the intensity of the bands were ~3300, 1640, 1550, 1240, and noticeable at ~1030 cm-1. The maxima also correspond to the vibrations of C = O groups, amide bands, and the polysaccharide fraction, as well as stretching vibrations of the hydroxylic group. The analyses conducted using FTIR spectroscopy demonstrated that the product was highly stable during the refrigerated storage, as reflected in particular by the vibrations in the spectral region below 1000 cm-3.

Comparative histological assessment of the effect of retinol palmitate preparations on aging skin

BACKGROUND: Most often, the natural form of vitamin A (retinol palmitate) is used to prevent skin aging. There are two topical preparations in the form of ointment on the Russian market that contain a high concentration of retinol palmitate, including in combination with cholecalciferol and tocopherol acetate. The specific effects of these drugs on the structure of aging skin have not yet been fully studied. AIM: Comparative histological assessment of the effect of topical preparations in the form of ointment containing retinol palmitate on the epidermis and dermis of women aged 40–55 years. MATERIALS AND METHODS: The clinical study included 18 women aged 40 to 55 years old. Group 1 included 6 women who used retinol palmitate ointment 2 times a day on the skin of the face. Group 2 consisted of 6 women who used the dermatoprotective agent 2 times a day on the skin of the face which, in addition to retinol palmitate, includes cholecalciferol and α-tocopherol acetate. Group 3 consisted of 6 women and was an intact comparison group. The observation period is 90 days. Patients underwent a punch biopsy with histological examination of the skin before and after the observation period. RESULTS: According to the results of the study, it was revealed that ointments with a high concentration of retinol palmitate have a stimulating effect on the proliferation of keratinocytes of the epidermis, which manifested itself in an in increasing the number of rows of cells of the prickly layer. In addition, under the action of these drugs, the synthetic activity of keratinocytes of the granular layer increases, which contributes to the proper formation of the stratum corneum of the epidermis. The use of ointments leads to a significant increase in the thickness of both the granular and prickly layers of the epidermis and the dermis. CONCLUSION: Ointments with a high concentration of retinol palmitate improve the structure of aging skin.

Role of immunomodulation in childhood asthma and pediatrics: A case series

The definition of immunomodulation refers to the action undertaken by the medication on autoregulating processes that steer the immunological defense system. Immunomodulation is modulation (regulatory adjustment) of the immune system. It has natural and human-induced forms, and thus the word can refer to the following: · Homeostasis in the immune system, whereby the system self-regulates to adjust immune responses to adaptive rather than maladaptive levels (using regulatory T cells, cell signaling molecules, and so forth) · Immunomodulation as part of immunotherapy, in which immune responses are induced, amplified, attenuated, or prevented according to therapeutic goals

The Photothermal Synergistic Mechanism of Rock Varnish Photoconductance Under Laser Irradiation.

Rock varnishes, complex structures formed by long-term deposition on rocks, exhibit unique light absorption characteristics and are widely distributed across arid environments on Earth's surface. The varnishes possess the ability to absorb and convert photons from solar radiation into electrons, which represents a newly discovered fundamental energy form in nature, with further elucidation required regarding the underlying mechanism of how semiconductor minerals respond to light radiation. The regulations governing the photoconductive responses of samples from the Alashan region in Gobi, China, and the mechanisms exhibited by rock rock varnishes under various bias voltages and irradiation wavelengths (532 nm, 808 nm, and 1064 nm) were studied. The photoconductivity response is positively correlated with the applied external bias, and the response caused by shorter wavelengths is larger. The synergistic effect was quantitatively assessed by monitoring and fitting the correlation between photoconductivity, temperature, and time during laser irradiation. As an effective method to study the fundamental physical properties of semiconductor minerals, the photoconductivity testing will help to establish a fundamental framework for investigating the intrinsic physical characteristics of natural rock varnishes.

The Role of Vitamin E Isoforms and Metabolites in Cancer Prevention: Mechanistic Insights into Sphingolipid Metabolism Modulation.

Natural forms of vitamin E include four tocopherols and four tocotrienols (α, β, γ, and δ), which are essential as lipophilic antioxidants. Among these eight isoforms, α-tocopherol (αT), the predominant form of vitamin E found in tissues, has traditionally received the most attention in disease prevention research due to its robust antioxidant activity. However, recent studies suggest that other forms of vitamin E exhibit distinct and potentially more potent beneficial activities in disease prevention and treatment. These non-αT forms of vitamin E are metabolized in vivo, producing various metabolites, including 13'-carboxychromanol, though their biological roles remain largely unknown. Notably, sphingolipids, known for their significant roles in cancer biology, may be involved in the anticancer effects of vitamin E through the modulation of sphingolipid metabolism. This review focuses on the diverse biological activities of different vitamin E forms and their metabolites, particularly their anticancer effects, while highlighting the underlying mechanisms, including their novel impact on regulating sphingolipid pathways. By elucidating these interactions, we aim to provide a deeper understanding on the multifaceted roles of vitamin E in cancer prevention and therapy.

Therapeutic activity of curcumin in natural and nano forms on copper oxide nanoparticles induced renal toxicity, oxidative stress, and DNA damage in rat

Therapeutic activity of curcumin in natural and nano forms on copper oxide nanoparticles induced renal toxicity, oxidative stress, and DNA damage in rat

Ethno-Design of Galicia at the Beginning of the 20th Century

The aim of the research is the factors and backgrounds formation of Galicia ethno-design at the beginning of XX century. The processes, which influenced the area of ethno-design development, have completely been spotlighted in the work. Its formation is being considered as the cultural event interrelated with the historic-economical, geographical, social-cultural changes in the region of the investigated period. Research methods: search-analytical (identification, literature analysis and origin foundation), historical (research of events and phenomena development), chronological (events consideration in the time consistency), logical-synthetic (factors, events and phenomena analysis), generalization and systematization results. Scientific novelty. In the research the backgrounds and features of regional manner-designed heritage formation have been revealed which are rooted in the unique folk art, folk art traditions, grand work of regional rules formation and stylization, ethno-pedagogics principles application in familial art upbringing, formation of private craft and art-industrial schools in the area, and so forth. Conclusions. As the result it has been concluded that the Galicia ethno-design at the beginning of the last century was characterized by the distinctive art and art-industrial traditions which influenced the unique Ukrainian style separation based on the West-European achievements. Different kinds of folk art, craft and homecraft played the important role in those processes. Through the nature forms and reasons stylization they gained their signs and colors semantics inherent of the area. The background of Galicia ethno-design development has become the esthetic tastes formation in family training of children and youth, ethno-pedagogical phenomenon of the regional art dynasties, foundation and performance of educational establishments with the national art-industrial culture of the area. It is highly important to use this experience in the professional training of Ukrainian designers.