Protection Options Research Articles

Influence of Artemisia dubia Wall and Pig Manual Digestate on Winter Wheat Productivity and Grain Quality

Sustainable agriculture aims to use biological resources to improve crop quality and productivity. This approach promotes alternatives, such as replacing synthetic pesticides with biological ones and substituting mineral fertilizers with organic fertilizers. Field trials were conducted using two different factors: fertilizer treatments (ammonium nitrate and pig manure digestate) and plant protection treatments (pesticides, Artemisia dubia Wall biomass mulch, and strips). After harvesting the winter wheat, the productivity and quality (weight of 1000 grains, protein, gluten, starch, sedimentation of grains) were evaluated. The two-year studies showed that pig manure digestate positively affected winter wheat grain quality. Mugwort biomass outperformed other plant protection options in three key grain quality indicators (protein, gluten, and sedimentation). Furthermore, in 2023, the highest grain yield of 5798 ± 125 kg ha−1 was observed in the pesticides and pig manure digestate treatment. The quick impact and mode of action of vegetation pesticides were more easily felt over the two years of study, leading to the highest yield of wheat grains compared to other plant management measures. This study shows that mugwort biomass can positively influence wheat grain quality, a significant milestone in utilizing nonfood crops as alternatives for agricultural productivity.

Deformation of volatility curves of the Russian stock market on the example of margined options on futures contracts on the RTS index

We reassess the Russian stock market behavior in terms of the relationship between risk parameters and return on assets in connection with global structural changes in 2022. The subject of this study is volatility curves calculated from quotes of exchange options on RTS index futures. The purpose of the study is to analyze the relationship between volatility curves and the distribution of returns in 2015–2022, to analyze changes in the structure of this relationship in 2022, to assess the applicability of the GARCH model and to develop new investment and hedge strategies on the Russian stock market. The issue of interpreting the dynamics of volatility curves is disputable however, it was theoretically developed in the theory of valuation of derivative financial instruments. As a result of the study, unrelated structures of the distribution of returns and volatility curves for the RTS composite index were found throughout the entire period concerned, regardless of the presence of external shocks. It is concluded that in the Russian stock market, investors prefer protective options rather than speculative ones, despite the negative asymmetry of the distribution of RTS index returns. And despite the greater weight of positive returns in their distribution in each period under consideration, due to the technical features of the functioning of return indicators, the negative asymmetry of the return distribution does not necessarily correlate with growing volatility curves.

Effect of mitochondrial coenzyme-Q10 precursor solanesol in gentamicin-induced experimental nephrotoxicity: Evidence from restoration of ETC-complexes and histopathological alterations.

Nephrotoxicity occurs when the body is exposed to certain drugs or toxins. When kidney damage occurs, the kidney fails to eliminate excess urine and waste. Solanesol (C45H74O) is a tri-sesquiterpenoid alcohol first isolated from tobacco, and it is widely distributed in plants of the Solanaceae family. Solanesol (SNL) is an intermediate in the synthesis of coenzyme Q10 (CoQ10), an antioxidant which protects nerve cells. This study investigated the protective effect of SNL at doses of 30 and 60 mg/kg in gentamicin-induced nephrotoxicity in Wistar albino rats. Animals were distributed into six groups and administered 100 mg/kg gentamicin-intraperitoneal injection for 14 days. Biochemical assessments were performed on kidney homogenate, blood, and serum. Treatment with SNL was shown as lower serum levels of creatinine, blood urea nitrogen (BUN), thiobarbituric acid reactive substances (TBARS), and Tumor necrosis factor alpha)TNF-α ((p < .001). It also restored reduced glutathione (GSH) and mitochondrial complex enzymatic activity as protective measures against gentamicin-induced nephrotoxicity. SNL were shown to reduce inflammation and oxidative stress markers (p < .001). Histological findings furtherly augmented the protective effects of SNL. Long-term SNL therapy also restored mitochondrial electron transport chain complex enzymes, such as complex-I (p < .001). In conclusion, these findings suggest that SNL can represent a protective therapeutic option for drug-induced nephrotoxicity, a long-term adverse effect of aminoglycoside antibiotics such as gentamicin.

Protective effects of Boswellia and Curcuma extract on oxaliplatin-induced neuropathy via modulation of NF-κB signaling

Oxaliplatin is a third-generation anticancer agent with better efficacy, lower toxicity, and a broad spectrum of antineoplastic activity. Its use is frequently associated with chronic oxaliplatin-induced neuropathy (OIN), a cumulative phenomenon manifesting as loss of sensation, paresthesia, dysesthesia, and irresolvable fluctuations in proprioception that greatly affect the patients’ quality of life. The inevitable nature and high incidence of OIN, along with the absence of efficacious preventive agents, necessitate the development of effective and reliable protective options for limiting OIN while maintaining anticancer activity. The pathogenesis of chronic OIN involves neuroinflammation and oxidative stress. This study aimed to explore the neuroprotective effects of Boswellia serrata and Curcuma longa via modulation of nuclear factor-kappa B (NF-κB) signaling. Behavioral tests were conducted to assess cold allodynia, heat hyperalgesia, mechanical allodynia, mechanical hyperalgesia, and slowed nerve conduction velocity associated with chronic oxaliplatin administration. The modulation of NF-κB signaling and the subsequent activation of cytokines were evaluated through quantitative analysis of inflammatory cytokines in sciatic nerve homogenates. Additional assessments included oxidative stress parameters, serum neuronal biomarkers, and examination of sciatic nerve cross-sections. The findings indicate improvements in behavioral and biochemical parameters, as well as nerve histology, with the combined extract of Boswellia serrata and Curcuma longa at doses of 50 mg/kg and 75 mg/kg. Thus, this study presents evidence for the protective potential of the combined extract of Boswellia serrata and Curcuma longa in OIN through modulation of NF-κB signaling.

Promotion of Intellectual Activity Results of Scientific Organizations. Value Estimation

We consider approaches to assessing the value of intellectual activity results (IAR) from the points of view of the seller and the buyer. The analysis was carried out on the basis of a comparison of the total costs of implementing IAR in which the purchase of a license may be only a part of the costs. The analysis takes into account the risks associated with the implementation of IAR. They can potentially lead to reducing the economic performance in the realization of IAR. The authors examine choices of buyers and sellers in relation to the purchase and sale of IAR, taking into account the scale of the markets available to them. Some considerations explaining the low activity on the IAR market in Russia by the scale of business and the size of manufacturing companies are presented. We define the reasons for the low interest of scientific organizations in promoting IAR for sale. They are a consequence of the small volume of markets and can also be explained by the fact that using budgetary funds, research institutions can cover the costs of creating IAR more substantially than they can by selling IAR on the market. We have formulated proposals that make it possible to increase the efficiency of the work of scientific organizations with IAR. In particular, a reasonable economic policy focuses on sales of IAR through R&amp;amp;D (including with the assistance of extra-budgetary funds). With regard to the reserves being created, it is advisable to use protection options that do not disclose the essence of the IAR and uphold the protection period with significant time spent on searching. This, for instance, may be an option to set up a trade secret regime with subsequent patenting within the framework of R&amp;amp;D for the benefit of a particular buyer. This approach reduces the risks not only for the seller, but also for the buyer. For government agencies, it can be recommended to increase the importance of license sales while assessing efficiency in comparison with simple registration of IAR. It is advisable to finance applied R&amp;amp;D involving the creation of IAR if there is a guarantee for the implementation of the corresponding IAR by developers or industrial partners.

The impact of pressure rate on the physical, structural and gamma-ray shielding capabilities of novel light-weight clay bricks

The present study focuses on investigating the gamma-ray protection features of clay bricks for potential use in radiation shielding fields. The study examined the physical and structural features that affect the performance of these stones in shielding γ-rays. The density (ρ, g/cm3) of the clay bricks samples was measured utilizing the MH-300A density meter. Additionally, the mineral structure within the annealed pressed clay samples was identification the XRD spectrometry. Moreover, the morphology and elemental chemical composition for the annealed bricks were examined using a Thermo Scientific Prisma E, USA field emission Scanning Electron Microscope (SEM) in conjunction with Energy Dispersive X-ray Spectroscopy. Besides, the shielding features of the clay bricks were analyzed using the experimentally measurements (by NaI (Tl) scintillation detector), XCOM software, and Monte Carlo Simulation over the γ-ray energy interval of 0.033–1.332 MeV. The findings of the study indicate that an increase in the pressure rate within the clay bricks samples leads to the rise in their density (from 1.62 to 1.87 g/cm3). This increase in density is accompanied by a decline in both porosity (Φ, %) (from 34.75 to 26.21 %) and water absorption (K, %) (from 26.21 to 14.74 %) factors. Furthermore, the increase in pressure rate from 7.61 to 114.22 MPa also results in an increase in the linear attenuation coefficient (μ, cm−1) of the clay bricks under study. This is achieved by increasing the μ values from 0.39 to 0.43 cm−1, from 0.13 to 0.15 cm−1, and from 0.09 to 0.10 cm−1, at 0.081, 0.511 and 1.173 MeV, respectively. The synthetic bricks offer a lead-free and efficient option for protection, making them ideal for use in nuclear facility start-ups or in areas with radiation exposure.

The Impact of the Sarbanes-Oxley Act on Takeover Protection Provisions

We investigate the effects of the Sarbanes-Oxley (SOX) Act on corporate governance metrics, such as the takeover protection provisions and the governance index (G-index). We look at provisions related to takeover protection such as severance agreements, indemnity contracts, golden parachutes, compensation schemes, director liability and indemnity. We examine the effects of SOX between the two periods, designating the 1998–2000 timeframe as the pre–SOX period and the 2002–2004 timeframe as the post–SOX period. Then, in order to determine whether these provisions were affected in any way after 2004, we compare the values from 2004 to the values from 2006. We discover that between the pre-SOX and post-SOX periods, the G-index mean score had increased, indicating a declining degree of total shareholder rights. When we examine the six protection provisions, we discover that two of them—compensation plans and golden parachutes—had deteriorated (i.e., the percentage of firms using these measures had increased) and four of them—indemnification contracts, severance agreements, director indemnity, and director liability—had improved. Put differently, following the passage of the Act, businesses began to select different takeover protection options. However, the SOX's long-term effects were restricted to two variables only. After 2004, the proportion of companies employing golden parachutes climbed (i.e., negatively), whilst the percentage of companies utilizing severance agreements decreased (i.e., positively). We conclude that, in general, the SOX Act had a favorable effect on the majority of the measures that we looked at, with the exception of two measures: golden parachutes and compensation schemes.

Intelligent marine waterborne epoxy coating based on functionalized multiscale nanocomposite: mechanical enhancement, self-reporting, and active/passive anti-corrosion

Corrosion activities and related accidents are significant issues for marine facilities, leading to considerable economic losses. Waterborne epoxy (EP) coating has been seen as one of the optimal options for corrosion protection due to its stable properties and eco-friendliness (0 g/L volatile organic compounds). Nevertheless, several intrinsic deficiencies require improvement, such as fragile mechanical properties and defects (macro and micro), resulting in the continuous deterioration of comprehensive coating performances. In this work, a novel nanocomposite coating with mechanical enhancement, intelligent self-reporting, and active protection is fabricated by integrating the functionalized and compatible graphene oxide/cerium based metal-organic framework multiscale structure (GO-CeMOF-P/M). Notably, the homogenous dispersion of GO-CeMOF-P/M and its chemical interaction with the polymer matrix effectively reduces the defects resulting from solution volatilizing and enhances the compactness, which boosts the tensile strength (32.1 MPa/8.5%) and dry adhesion force (5.8 MPa) of the coating. Additionally, the controllable responsiveness and release of multiscale nanocomposite within external environments endow intelligent active protection and self-reporting characteristics for the GO-CeMOF-P/M-EP coating, making it especially suitable for a variety of practical marine applications. Furthermore, following immersion of 80 d in the aggressive environment, Zf=0.01 Hz value of GO-CeMOF-P/M-EP coating is 1.2 × 1010 Ω·cm2, which is 164.4 times larger than that of EP coating (7.3 × 107 Ω·cm2), demonstrating remarkably strengthened anti-corrosion ability. Consequently, by offering an intriguing design strategy, the current work anticipates addressing the inherent deficiencies of EP coating and facilitating its practicality and feasibility in real sea environments.

An In Silico Design of a Vaccine against All Serotypes of the Dengue Virus Based on Virtual Screening of B-Cell and T-Cell Epitopes.

Dengue virus poses a significant global health challenge, particularly in tropical and subtropical regions. Despite the urgent demand for vaccines in the control of the disease, the two approved vaccines, Dengvaxia and TV003/TV005, there are current questions regarding their effectiveness due to an increased risk of antibody-dependent enhancement (ADE) and reduced protection. These challenges have underscored the need for further development of improved vaccines for Dengue Virus. This study presents a new design using an in silico approach to generate a more effective dengue vaccine. Initially, our design process began with the collection of Dengue polyprotein sequences from 10 representative countries worldwide. And then conserved fragments of viral proteins were retrieved as the bases for epitope screening. The selection of epitopes was then carried out with criteria such as antigenicity, immunogenicity, and binding affinity with MHC molecules, while the exclusion criteria were according to their allergenicity, toxicity, and potential for antibody-dependent enhancement. We then constructed a core antigen with the selected epitopes and linked the outcomes with distinct adjuvant proteins, resulting in three candidate vaccines: PSDV-1, PSDV-2, and PSDV-3. Among these, PSDV-2 was selected for further validation due to its superior physicochemical and structural properties. Extensive simulations demonstrated that PSDV-2 exhibited strong binding to pattern recognition receptors, high stability, and robust immune induction, confirming its potential as a high-quality vaccine candidate. For its recombinant expression, a plasmid was subsequently designed. Our new vaccine design offers a promising additional option for Dengue virus protection. Further experimental validations will be conducted to confirm its protective efficacy and safety.

Reducing Oxidative Stress Levels and Inhibiting Aging by l-Cysteine-Derived Carbon Dots with Highly Efficient Broad-Spectrum UV Absorption.

Ultraviolet (UV) exposure causes damage to human skin and mucous membranes, resulting in oxidative stress, and can also lead to inflammation of human skin, skin aging, and even diseases such as squamous cell carcinoma and melanoma of the skin. The main means of protection against UV radiation is physical shielding and the use of sunscreen products. Carbon dots as a novel nanomaterial provide a new option for UV protection. In this article, we introduced sulfhydryl groups to synthesize l-cysteine-derived carbon dots (GLCDs) with UV resistance. GLCDs exhibit high-efficiency and excellent UV absorption, achieving 200-400 nm UV absorption (99% UVC, 97% UVB, and 86% UVA) at a low concentration of 0.5 mg/mL. Meanwhile, GLCDs can reduce apoptosis and UVB-induced oxidative damage, increase collagen type I gene expression, and inhibit skin aging in zebrafish. It also inhibits senescence caused by the senescence inducer 2,2'-azobis(2-methylpropionamidine) dihydrochloride and reduces oxidative damage. The above studies show that GLCDs possess efficient broad-spectrum UV absorption, antiphotoaging, and antiaging capabilities, which will have a broad application prospect in UV protection.

Vitrification of Ovarian Cortex Tissue to Achieve a Glassy State of Aggregation.

Ovarian tissue cryopreservation (OTC) is an important option for fertility preservation. For patients whose gonadotoxic treatments cannot be postponed or for pre-pubertal girls, it is often the only option for fertility protection. Cryopreservation can be performed either by vitrification or by slow freezing. Slow freezing is currently the standard approach. An increasing number of studies indicate that vitrification can replace slow freezing in the state-of-the-art in vitro fertilization (IVF) laboratories, significantly improving thawing survival rates and simplifying the technical aspects of cryopreservation. A metal grid-based, high-throughput protocol for rapid vitrification of ovarian cortex tissue, suitable for clinical routine, is described. The sterilization of metal grids and liquid nitrogen ensures high quality, meeting good manufacturing practice (GMP) standards. Vitrification was conducted to ensure ultra-rapid cooling rates. Instead of slowly thawing, samples were rapidly warmed. To assess follicular viability, calcein staining was performed both prior to cryopreservation and after rapid warming. The successful application of vitrification and rapid warming using metal grids is reported. No significant differences in follicular viability were observed prior to vitrification and after rapid warming. These results substantiate the high capacity of tissue vitrification for clinical routine applications as a potential substitute for the widely used slow-freezing method.

Solving Investors’ Problems with Access to Evidence in Damages Litigation: Suggestions for a Future Issuer Liability Regime

AbstractPrivate enforcement’s role in the European secondary securities market is narrow. Issuer companies’ civil liability for violations of the inside information disclosure obligation is no exception. While trying to avoid the shadow of the US class action institution, European scholarship has long explored ways to increase the role of private enforcement in the securities market. Harmonising issuer liability is one of the suggestions to create a more prominent role for private enforcement. Even though harmonising issuer liability would be a welcome option for legal certainty and investor protection, it seems unlikely to happen in the near future. As an initial step towards potential harmonisation, this article analyses credit rating agencies’ (CRAs) liability and liability for competition law violations from the viewpoint of information asymmetry in litigation. It evaluates whether the legislative solutions in the CRA III Regulation and the Competition Damages Directive regarding plaintiffs’ access to evidence could be used as models for a potential issuer liability regime. The article finds that the choices made in the Competition Damages Directive could serve as viable models for issuer liability. The provisions in that Directive solve the information asymmetry between the plaintiff and the defendant by granting the plaintiff access to evidence in litigation through a court order.

Technological changes, work, and inequalities in Latin America: Rethinking post-pandemic social protection options

Technological changes, work, and inequalities in Latin America: Rethinking post-pandemic social protection options

Projecting the long‐term effects of large‐scale human influence on the spatial and functional persistence of extant longleaf pine ecosystems in the Florida Flatwoods Pyrome

AbstractDecades of human activities and fire suppression have adversely affected longleaf pine (Pinus palustris) ecosystems, which are home to high levels of diversity and endemism. These iconic ecosystems also now face challenges from urbanization and climate change, which will alter conservation outcomes over the remainder of the 21st century. To explore how long‐term, large‐scale human influences could affect the spatial and functional persistence of extant longleaf pine ecosystems in the Florida Flatwoods Pyrome, we extracted a set of 2400 longleaf pine patches ≥40 ha in size from the Florida Longleaf Pine Ecosystem Geodatabase. Projections from the FUTURES urban growth model and the Florida 2070 project indicate that development will lead to losses of existing longleaf pine habitat, reductions in longleaf pine patch size, and patches that are predominantly located in close proximity to developed areas. Finer‐scale patterns of longleaf pine loss in three focal landscapes highlighted differences in land protection, ecological setting, and development pressure and the value of using of multiple urbanization iterations. The occurrence of suitable conditions to conduct prescribed fires, a crucial tool for maintaining, improving, and restoring longleaf pine ecosystems, is projected to decrease seasonally throughout the study area. As a result, the functional persistence of ecosystems is at risk due to climate changes that increase barriers to the safe and reliable application of intentional fire. The long‐term viability of this critical ecosystem will warrant the evaluation of adaptive strategies that explicitly account for the individual and compounding effects of urban development and changing fire management conditions when considering options for ecosystem protection, management, and restoration.

Revitalizing gut health: Liangxue guyuan yishen decoction promotes akkermansia muciniphila -induced intestinal stem cell recovery post-radiation in mice

BackgroundThe efficacy of Liangxue Guyuan Yishen Decoction (LGYD), a traditional Chinese medicine, has been scientifically proven in the treatment of radiation-induced intestinal injury (RIII) and preservation of intestinal integrity and function following high-dose radiation exposure. However, further investigation is required to comprehensively elucidate the precise mechanisms underlying the therapeutic effects of LGYD in order to provide potential pharmaceutical options for radiation protection. PurposeThis study aims to elucidate the potential mechanism through which LGYD exerts its therapeutic effects on RIII by modulating the gut microbiota (GM). Methods16 s rRNA analysis was employed to assess the impact of varying doses of whole body irradiation (WBI) on GM in order to establish an appropriate model for this study. The effects of LGYD on GM and SCFA were evaluated using 16 s rRNA and Quantification of SCFA. UHPLC-QE-MS was utilized to identify the active components in LGYD as well as LGYD drug containing serum (LGYD-DS). Subsequently, immunofluorescence and immunohistochemical staining were conducted to validate the influence of LGYD and/or characteristic microbiota on RIII recovery in vivo. The effects of LGYD-DS, characteristic flora, and SCFA on intestinal stem cell (ISC) were assessed by measuring organoid surface area in intestinal organoid model. ResultsThe species composition and abundance of GM were significantly influenced by whole-body irradiation with a dose of 8.5 Gy, which was used as in vivo model. LGYD significantly improves the survival rate and promotes recovery from RIII. Additionally, LGYD exhibited a notable increase in the abundance of Akkermansia muciniphila (AKK) and levels of SCFA, particularly isobutyric acid. LGYD-DS consisted of seven main components derived from herbs of LGYD. In vivo experiments indicated that both LGYD and AKK substantially enhanced the survival rate after radiation and facilitated the recovery process for intestinal structure and function. In the organoid model, treatment with LGYD-DS, AKK supernatant or isobutyric acid significantly increased organoid surface area. ConclusionsLGYD has the potential to enhance RIII by promoting the restoration of intestinal stem cell, which is closely associated with the upregulation of AKK abundance and production of SCFA, particularly isobutyric acid.

Implementation of an Approach to Equitable Allocation of SARS-CoV-2 Monoclonal Antibodies for Preexposure Prophylaxis: Experience From a Single Medical Center.

During the COVID-19 pandemic, SARS-CoV-2 monoclonal antibodies for preexposure prophylaxis (SMA-PrEP) offered patients who were immunocompromised another option for protection. However, SMA-PrEP posed administrative, operational, and ethical challenges for health care facilities, resulting in few patients receiving them. Although the first SMA-PrEP medication, tixagevimab and cilgavimab, had its authorization revoked due to compromised in vitro efficacy, new SMA-PrEP medications are currently completing clinical trials. This article provides an operational framework for administrative organization, patient identification and prioritization, equitable medication allocation, medication ordering and administration, and patient tracking. A retrospective cohort study evaluating our hospital's SMA-PrEP administration strategy was performed. Multivariable logistic regression was used to examine factors associated with receipt of SMA-PrEP. Despite the barriers in administering this medication and the scarcity of resources, our hospital was able to administer at least 1 dose of SMA-PrEP to 1359 of 5902 (23.0%) eligible patients. Even with the steps taken to promote equitable allocation, multivariable logistic regression demonstrated that there were still differences by race, ethnicity, and socioeconomic status. As compared with patients who identified as Black, patients who identified as White (odds ratio [OR], 1.85; 95% CI, 1.46-2.33), Asian (OR, 1.59; 95% CI, 1.03-2.46), and Hispanic (OR, 1.53; 95% CI, 1.02-2.44) were more likely to receive SMA-PrEP. When compared with patients with low socioeconomic status, patients with high socioeconomic status (OR, 1.37; 95% CI, 1.05-1.78) were more likely to be allocated SMA-PrEP. Despite efforts to mitigate health care disparities, differences by race/ethnicity and socioeconomic status still arose in patients receiving SMA-PrEP.

Psychosocial determinants of adolescents' attitudes toward disclosing dating violence.

This study combined a person-oriented approach with a psychosocial framework of help-seeking to examine factors associated with the intent to disclose dating violence among developing adolescents. Data came from adolescents in middle and high school in a rural area in the southeastern United States, who were surveyed annually for 4 years (Nwave 1 = 580; Mage = 13 years, SD = 1.48; 52.7% female; 49% Black, 39% White, 11% Hispanic, or other minorities). Results confirm expectations that intraindividual (adolescent views on violence and safety); interindividual (peer and family dynamics); positional (gender, having a supportive adult); and ideological factors are all significant predictors of patterns in help-seeking attitudes. However, predictive relevance of some factors varied across help-seeking groups and data collection periods, supporting the differential effects hypothesis. For example, while greater friend social support increased the odds of belonging to "friend confidants," it simultaneously decreased the odds of being a member of "parent confidants" and "moderate help-seekers" groups. Additionally, the influence of family functioning tended to decrease over time, eventually losing its explanatory value at Wave 4. The article concludes by discussing how integration of a person-centered methodological approach with a robust theoretical foundation advances our understanding of variability in adolescents' responses to dating violence. Consideration of diversity in adolescent intentions to react to interpersonal violence is discussed further in the context of policy and practice to enhance protective options and prevent or minimize harm. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Stakeholder involvement and preferences in landscape protection decision-making: a systematic literature review

Stakeholder involvement and preferences are pivotal in the decision-making process for landscape protection within a specific context. However, many decisions regarding landscape protection options still rely on management choices with little or no consideration of all stakeholders. Previous scholars emphasized the importance of establishing an integrated framework to gain an adequate understanding of the process of stakeholders’ decision-making in landscape protection. Therefore, a systematic literature review was conducted on the topic of stakeholders’ involvement and preferences in landscape protection decision-making. This review included research articles published from 2013 to 2023 using two databases and registers, namely, Science Direct and Google Scholar. A total of 110 research articles were identified and qualified for review based on the screening requirements, with an additional 15 documents for theories and backgrounds to provide a better understanding and outcomes for the study. The results of this study were organized based on concepts from the resulting research articles and were integrated to propose a conceptual framework for Stakeholders’ involvement and preferences in landscape protection. Additionally, this study’s findings indicate the significance of incorporating diverse stakeholders and their preferences in landscape protection processes to ensure awareness of inclusivity in decision-making and secure long-term support.

Метод оценки критериев оптимизации системы электробезопасности в инфраструктуре села

The article provides an analysis of the state of energy availability and equipment of electric installations for infrastructure facilities in rural settlements. The main type of technogenic hazards is marked – the electrical hazard that occurs in emergency modes of operation of electrical installations. The conditions for solving the safety problem and choosing the optimal variant of the electrical safety system are given. The indicators of the technical efficiency of the electrical safety system are determined, characterized by the likelihood of electrical injury to a person and the likelihood of a fire in electrical installations at facilities. The choice of the most appropriate options for the use of electrical protection equipment, providing for the joint use of automatic switches and protective shutdown devices, was made as a result of comparing the likelihood of electrical injury and fire with a normalized risk level of electrical and fire safety. A method for optimizing the electrical safety system is considered according to two particular criteria representing the average values of the probabilities of electrical injury and fire with the equivalence of their values. The task of optimizing the security system is indicated, which consists in constructing a vector criterion of optimality and converting it into a scalar criterion using the "assignment" method to obtain a normalized partial criterion. The normalized private criteria of electrical and fire safety are determined using a scalar criterion for the selection of electrical protection options for an agricultural facility. An algorithm for evaluating the effectiveness of the electrical safety system in dangerous situations of electrical injuries has been built. The description of the construction of an algorithm for modeling the state of fire safety of the system in the event of fires in electrical installations is given. A comprehensive assessment of the normalized criterion for optimizing the electrical safety system was obtained according to two normalized criteria for electrical and fire safety and the choice of optimal electrical protection options at the studied facility. Keywords: TECHNOGENIC HAZARD, ELECTRICAL INSTALLATION, ACCIDENT, ELECTRICAL INJURY, TECHNICAL EFFICIENCY, EVALUATION CRITERIA, OPTIMIZATION OF ELECTRICAL SAFETY SYSTEM, ELECTRICAL PROTECTION

High-strength low-k glass–ceramic composite covers for 6G communication mobile devices

Ceramic-based back covers are commercially utilized as a high-end option for the physical protection of mobile phones. Herein, an unprecedented composite structure consisting of a cordierite (2MgO.2Al2O35SiO2) glass–ceramic strengthened with yttria-stabilized zirconia (YSZ) fillers is introduced as a protective back cover, specifically for next-generation communication mobile phones additionally requiring a low dielectric constant at gigahertz frequencies. Crystallization sequence was rather complicated with the involvements of multiple crystalline phases, α- and μ-cordierite, tetragonal and monoclinic ZrO2, and ZrSiO4, depending on the glass and composite compositions. This unique approach effectively induced the best mechanical performance for the 10 wt% YSZ/glass–ceramic structure, despite the low sintering temperature of 1050 °C, with the highest Vickers hardness of ∼9.2 GPa and flexural strength of ∼196.8 MPa attained for the optimal composite. Although effective dielectric constant of the composites depended on the relative contents of the evolved crystalline phases, overall dielectric constant was kept low due to the utilization of cordierite glass as the main component.