Value Of Use Research Articles

EUTROPHICATION OF THE KYIV RESERVOIR OF UKRAINE: REVIEW

It is known that the process of eutrophication in freshwater (especially in lakes and reservoirs) is increasing every day. That is why the relevance of this research is related to the existing processes of eutrophication in the Kyiv Reservoir of Ukraine. The research was conducted on the basis of laboratory research materials in 2021 year (before starting russian-Ukrainian war – 24.02.2022) and in 2023 year (after 600 days starting russian-Ukrainian war). The main aim of the research was to determine the main cause-and-effect relationships of strengthening eutrophication processes of the Kyiv Reservoir, which are currently available. It has been established that eutrophication of the Kyiv Reservoir occurs under natural and anthropogenic conditions. During the analysis (2021-2023 years), we identified the main causes of natural (transportation of nutrients due to floods, increased abrasion processes, climate change) and anthropogenic eutrophication (agricultural and urban activities, military activities). Analyzing the cause-and-effect relationships of the intensification of eutrophication processes, we emphasized the main consequences of the anthropogenic load on the water body of the reservoir for aquatic biota (change in trophic relationships in the aquatic ecosystem, reduction of aquatic biodiversity), for different branch of human activities (deterioration of the aesthetic value and water quality for water use, recreation and agriculture). Also, we highlighted the implications of eutrophication for the reservoir such as water toxicity that can influence the water bodies and biota (the appearance of cyanobacteria, which are harmful to biota and people).

Indicators of stability of the world economic system

The state of the global economic system is described by a large number of parameters. It is interesting to find out whether it is possible to collapse these parameters into a single symbol (image, logograph) that would describe the state of the global economic system as a whole. A discrete dynamic model (DDM) was used to describe the global economic system. DDM states can be divided into unstable and stable. The degree of instability of the DDM can be used to assess the likelihood that the economic system would emerge from an unstable state. In turn, stable states are divided into stable points, stable cycles and strange attractors. It was discovered that stable states are characterized by areas of convergence that represent fractal formations. The unique nature of fractals encourages us to assess their usefulness and informative value when describing the state of the world economic system. In this work, we are trying to carry out such an assessment and formalize the characteristics of fractals in order to give a rough description of the states of the world economic system. To get input data, we used information on the rate of change in world GDP provided on the World Bank website as of June 29, 2023.

Application of Lean Philosophy Approaches in Furniture Design Processes

Methodological approaches observed and applied regarding “Lean Philosophy”, which is a concept originating from production, became important tools that can offer solutions to different problems in several disciplines. In recent years, Lean Philosophy has been widely applied in different fields as "Lean Architecture", "Lean Design", "Lean Construction", "Lean Management", "Lean Hospital", "Lean Accounting". The main purpose of this study is to draw attention to the gains of Lean Philosophy, which can be defined as eliminating all kinds of waste and any activity that has no added value in the end use, to furniture design and production. Considering the effects of the design process on the whole enterprise, it is thought that design activities can contribute to a sustainable and more efficient interaction by incorporating concerns as modularity, inventory management, reduction of material consumption, reduction of labour and energy consumption, besides form and function concerns. As a qualitative research, this study embraces the document analysis method as a means of data collection and analysis. Existing prominent Lean Philosophy tools for manufacturing systems were analysed and some of them were adapted to design processes.

Construction of millimeter-scale vascularized engineered myocardial tissue using a mixed gel.

Engineering myocardium has shown great clinal potential for repairing permanent myocardial injury. However, the lack of perfusing blood vessels and difficulties in preparing a thick-engineered myocardium result in its limited clinical use. We prepared a mixed gel containing fibrin (5 mg/ml) and collagen I (0.2 mg/ml) and verified that human umbilical vein endothelial cells (HUVECs) and human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) could form microvascular lumens and myocardial cell clusters by harnessing the low-hardness and hyperelastic characteristics of fibrin. hiPSC-CMs and HUVECs in the mixed gel formed self-organized cell clusters, which were then cultured in different media using a three-phase approach. The successfully constructed vascularized engineered myocardial tissue had a spherical structure and final diameter of 1-2 mm. The tissue exhibited autonomous beats that occurred at a frequency similar to a normal human heart rate. The internal microvascular lumen could be maintained for 6 weeks and showed good results during preliminary surface re-vascularization in vitro and vascular remodeling in vivo. In summary, we propose a simple method for constructing vascularized engineered myocardial tissue, through phased cultivation that does not rely on high-end manufacturing equipment and cutting-edge preparation techniques. The constructed tissue has potential value for clinical use after preliminary evaluation.

The application of dual-heart nursing mode in patients with coronary heart disease and angina pectoris and its impact on anxiety, depression, and quality of life

To diagnose and treat patients with coronary heart disease and angina pectoris with dual heart care mode and analyze the treatment effect. Three hundred cases meeting the inclusion criteria were equally divided into 3 groups, each containing 50 male and female cases. The patients in experimental group 1 took the dual heart nursing method proposed by the subject; experimental group 2 received betastatins; control group received conventional treatment. After 12 weeks of treatment, Hamilton depression scale scored the 3 groups, and their anxiety and depression scores, clinical manifestations, symptom scores and self-acceptance were analyzed. The chi square value of these data was compared with P, and judge whether they meet the needs and differences of statistical data. Then compare their scores before and after treatment to identify the treatment status. The anxiety and depression scores of experimental group 1 were the lowest among the 3 groups, with the values of 59.62 ± 7.925 and 58.64 ± 6.416; The total patients who responded effectively to treatment in experimental group 1 accounted for 83%, and the patients who responded effectively to treatment rate was the highest in the 3 groups; The effect of decreasing the score of complications in experimental group 1 was also the most obvious, from 9.07 ± 4.28 to 3.14 ± 2.07, which was the best in the 3 groups; the self-evaluation of patients in experimental group 1 was the highest among the 3 groups, 89.72 ± 4.28. The proposed dual heart care and treatment method can effectively treat coronary heart disease and angina pectoris, and can effectively improve the clinical performance and self-acceptance of patients. It can effectively restore the anxiety and depression of patients after treatment, and then improve patients’ life quality, which has the value of popularization and use.

An integrated accounting system of the economic-social-ecological framework for assessing the value of intensive land use: A case study of the Taihu Lake governance project

Assessing the value of land resources is a prerequisite for resource management, as well as for resolving the conflict between supply and demand. In the realm of intensive land use (ILU), a standardized framework for accounting methods from a project perspective has yet to be established. Therefore, taking the Taihu Lake governance project (TLGP) (which includes the Xingou River project, Xinmeng River project and Zoumatang River project) as a case study, this paper firstly constructs an integrated value accounting system based on economic, social and ecological frameworks. Furthermore, with consideration of physical parameters, we incorporated the integrated land section price method, income reduction method, alternative market method, and equivalent factor method are all incorporated to assess the value of ILU at distinct stages within the research area. This approach serves to elucidate the evolving dynamics of ILU valuation. The results showed that: (1) There were significant differences in the values generated by the ILU in different projects. The integrated value of the TLGP brought about by ILU was 177,189,300 yuan, and the ILU of the Xinmeng River project was significantly higher than the Zoumatang River project and the Xingou River project. (2) The ILU at different stages basically displayed the law of diminishing marginal utility. Consistent with changes in the different stages of the TLGP, the value of ILU in Stage I of the Zoumatang River project and the Xingou River project was significantly higher than that in Stage II. Additionally, the accounting system proposed in this study has the advantages of reasonable index setting and simple process operability. This helps to realize the comparison of ILU values across projects and stages. The results of this study can provide a reference for the management and sustainable use of land resources during the construction of water conservancy and other projects.

BEAUTIFYING MOSQUES, ENHANCING WORSHIP: THE FIQH PERSPECTIVE OF FOUR MADHHABS AND MUHAMMAD IQBAL'S AESTHETIC CONCEPT

Muslims recognize the significance of mosques as sites of worship and as centers for their religious and other activities. Various efforts are organized and designed to make mosques relevant to cultural changes and the needs of Muslims. Mosque buildings are often not identical in each region and nation, with different customs and cultures, and are sometimes even similar to other religions. In addition, the temptation of capitalism also raises questions about mosque designs that are overly grand and problematic for the socio-economic life of the community. This article aims to interrogate whether such a well-built mosque is permissible from the perspective of scholars of the four madhhabs of fiqh and the aesthetics of Muhammad Iqbal. Thus, this research uses descriptive-interpretive and textual methods to scrutinize fiqh views and analyze Iqbal's aesthetic perspective on the mosque building. The study revealed that the four madhhabs allow decorations on mosque buildings so that the mosque remains the principal place of worship and does not inconvenience the solemnity of the congregation's prayers. Furthermore, the mosque's decoration, ornamentation, design, and construction must provide meaningful objectives with practical usefulness and philosophical value; otherwise, for Iqbal, decorating a mosque in excess is wasteful and unavailing, and embellishing a mosque means squandering time and money.

The diagnostic performance of microRNAs expression levels in cellular aspirate of solitary thyroid nodule overrides that of cytology

Background: Evaluation of the diagnostic performance of estimated expression levels of microRNAs 203a, 206 and 576 in the cellular aspirate of solitary thyroid nodule (STN) in comparison to cytological examination for identification of malignant TN. Methods: The 74 patients with STN underwent clinical and US evaluation and gave blood samples for estimation of serum levels of thyroglobulin (TG) and anti-thyroglobulin antibodies (ATG). Then, fine-needle aspiration was performed to obtain cellular aspirate for cytological examination and estimation of levels of microRNAs. The appropriate surgical procedure was undertaken and the excised specimens were sent for pathological diagnosis. Results: Pathologically, 19 nodules had papillary thyroid carcinoma (PTC), 6 nodules had follicular carcinoma and one medullary carcinoma, while 48 nodules were benign nodules. Cytological examination diagnosed malignancy in 5 specimens, while specimens were suspicious of malignancy, 25 specimens were diagnosed as benign and 14 specimens as non-diagnostic. Serum levels of TG and ATG were significantly higher with malignancy. Expression levels of miR-203a and 206 were significantly lower, while miR-576 were significantly higher in malignant than benign aspirates. Multivariate regression analysis showed more significant ability for miR-576 level than cytological examination as screening and for miR-203a than miR-206 as diagnostic for malignant aspirate and for PTC Conclusions: Estimation of expression levels of microRNAs in cellular aspirate of STN is feasible and accurate for detection of the malignancy. Down-expression of miR-203a and over-expression of miR-576 in tissue aspirate are more diagnostic for TC and can specify PTC cases out of other TC cases.

Analysis of Safety Inventory Control on Wiring Harness Components with ABC Analysis, Economic Order Quantity, and Reorder Point Methods at PT XYZ

PT XYZ is a manufacturing industry that produces wiring harness for suzuki, daihatsu, and toyota products. Supporting materials in the assembly of wiring harness consist is various types. Therefore, controlling material inventory is important to do so that there is no excess inventory or overstock. This type of research is descriptive quantitative with the aim of knowing the value of material use and investment absorption, optimum order quantity, and reorder time. The classification results using the ABC analysis method obtained materials included in group A consist of 3 types of materials with 76,94% usage and 47,0% investment absorption. Group B consists of 4 types of materials with 21,12% usage and 39,2% investment absorption. Group C consists of 7 types of materials with a usage of 1,94% and investment absorption of 13,8%. Based on the EOQ calculation, the optimum ordering value for group A materials varies from 2.909-4.399, and the reorder point or ROP varies from 1.234-2.371. This research is expected to reduce excess inventory or overstock that occurs in the company.

A multiple criteria decision-making approach for water allocation of environmental flows considering the value trade-offs - A case study of Fen River in China

In the water-scarce basin, the allocation of environmental flows needs to achieve the equilibrium between ecological protection and economic development. One of the challenges is the lack of quantitative analysis of the value of water in the economy and ecosystem, which could not effectively support the decision-making. This paper proposed a new multi-criteria decision-making approach that considers the value trade-offs between the environmental flows and the economic water use of rivers. The value of environmental flows was assessed using the modified equivalent factor method combined with the hydraulic method, which considers the influences of the hydraulic characteristics of rivers on value assessment. The value of the economic water use was estimated using the modified Cobb-Douglas production function. The ideal point method was applied to obtain the optimal solution of the multi-criteria decision with the objective of maximum values of the economic water use and maximum values of environmental flows (or the value of multiple recommended environmental flows). This new method was applied to determine the optimal environmental flows in the Fen River, the second-largest tributary of the Yellow River of China. The results indicated that the reasonable environmental flows were 51.1 % or 40.4 % (considering the water shortage for development) of the natural runoff of the Fen River. This work could provide a valuable reference for determining the water allocation of environmental flows in the water shortage area of China.

Towards Sustainable Lithium-Ion Battery Anodes: Addressing the Critical Need for Graphite Recycling

Graphite is the predominant anode material for all lithium-ion batteries (LIB) currently manufactured. However, despite comprising between 10 and 20 percent of a LIB's weight, graphite is not typically recycled. Graphite has a wide variety of applications outside of LIB, but the value of use in other applications is very low, so only recycling graphite back into anode material will be economically viable. Since graphite is such a stable substance, it should in theory be highly desirable for direct recycling back into anode material. As a result of this stability, several sources of graphite can become intermixed and impossible to separate later, posing a traceability issue. As is the case with cathode materials, there is currently no policy mandating the recycling of graphite.At the same time, graphite (natural) is on the EU's list of critical raw materials (98% imports), and the global supply of graphite for anode materials is entirely dominated by China. The production of natural and synthetic graphite has significant environmental costs, with recent studies indicating a CO2 footprint in the range of 10 to 30 kgCO2/kg graphite, which is significantly higher than what was previously reported in LCA literature. There is a need to establish processes for recycling this valuable material, as its demand is expected to increase dramatically over the next decade.In recent years, Vianode has developed a one-of-a-kind method for converting graphite concentrates from LIB production scrap and end-of-life batteries (black mass) back into anode-grade graphite for use in new LIB. Using a high temperature purification stage, impurities and flaws in graphite can be effectively removed and a purity of over 99.99% can be attained. Cell testing reveals that recycled graphite can achieve the same properties as virgin graphite, including outstanding reversible capacity, first cycle efficiency, fast charge capability, and cycle life. The results indicate that graphite recycling should be implemented as soon as possible to lessen the EU's reliance on graphite imports and significantly reduce the environmental impact of anode materials in LIB.

Ethnobotany and phytochemistry of plants used to treat musculoskeletal disorders among Skaw Karen, Thailand

Context Musculoskeletal system disorders (MSD) are prevalent around the world affecting the health of people, especially farmers who work hard in the field. Karen farmers use many medicinal plants to treat MSD. Objective This study collects traditional plant-based remedies used by the Skaw Karen to treat MSD and evaluates their active phytochemical compounds. Materials and methods The ethnobotanical study was conducted in six Karen villages in Chiang Mai province using semi-structured interviews were of 120 informants. The data were analyzed using ethnobotanical indices including use values (UV), choice value (CV), and informant consensus factor (ICF). Consequently, the 20 most important species, according to the indices, were selected for phytochemical analysis using LC–MS/MS. Results A total of 3731 use reports were obtained for 139 species used in MSD treatment. The most common ailments treated with those plants were muscular pain. A total of 172 high-potential active compounds for MSD treatment were identified. Most of them were flavonoids, terpenoids, alkaloids, and steroids. The prevalent phytochemical compounds related to treat MSD were 9-hydroxycalabaxanthone, dihydrovaltrate, morroniside, isoacteoside, lithocholic acid, pomiferin, cucurbitacin E, leonuriside A, liriodendrin, and physalin E. Sambucus javanica Reinw. ex Blume (Adoxaceae), Betula alnoides Buch.-Ham. ex D.Don (Betulaceae), Blumea balsamifera (L.) DC. (Asteraceae), Plantago major L. (Plantaginaceae) and Flacourtia jangomas (Lour.) Raeusch. (Salicaceae) all had high ethnobotanical index values and many active compounds. Discussion and conclusions This study provides valuable information, demonstrating low-cost medicine plants that are locally available. It is a choice of treatment for people living in remote areas.

Zoning management framework for comprehensive land consolidation in oasis rural in arid area: Case study of the Ugan‐Kuqa River Delta Oasis in Xinjiang, China

AbstractComprehensive land consolidation (CLC) is a strategy to promote the intensive, efficient, and sustainable use of land, and is of great significance in repairing degraded land in oases, reversing the decline of the countryside, and activating multiple values of land use. However, how to scientifically assess and zoning management of CLC in dryland oases remains an open question. In this study, a comprehensive analytical framework was established to assess the characteristics of land‐use transformation and the potential for CLC using remotely sensed and geospatial data and spatial analysis methods, a multi‐objective territorial differentiation model, and collaborative path for CLC in oasis villages was proposed. The following key results were obtained. (1) From 2009 to 2018, urban and rural settlements in the hinterland of the Weiku Oasis expanded by 40 km2, and shrub forests and grasslands in the oasis‐desert transition zone shrank substantially by 21.13 km2. The newly cultivated farmland in the oasis‐desert transition zone only offset 62.9% of the occupied farmland in the hinterland of the oasis. (2) The pattern of comprehensive rural land consolidation potential in the Weiku Oasis was consistent with territorial differentiation, with a gradient decrease from the hinterland of the oasis to the desert. The average potential for Comprehensive land consolidation (PCLC) index was 0.31. (3) Three consolidation priorities and six consolidation types were identified for the proposal of 14 combined modes of CLC. Territorial differentiation with respect to the combined modes was discussed. Overall, this study provides useful insights for promoting efficient and sustainable utilization of oasis land resources and implementing zoning management.

Parametric fractional-order analysis of Arneodo chaotic system and microcontroller-based secure communication implementation

Chaotic systems are often used in cryptology applications thanks to their complex dynamic structures. By increasing the dynamic diversity of chaotic systems through fractional-order analysis, more complex systems for data security can be obtained. In this study, fractional calculus analyses of the Arneodo chaotic jerk system with cubic nonlinearity and its microcontroller-based chaotic masking application are presented. Numerical analyses such as bifurcation diagrams, spectral entropy complexity, and Lyapunov spectra are performed to examine the dynamic characteristics of the fractional-order system. The parametric analysis indicates the presence of chaotic states in the system for nearly all fractional-order values ranging from 0.55 to 1. In this manner, the study focuses on investigating the minimum applicable fractional-order value for use in secure communication applications, constituting the main contribution of this research. Consequently, the dynamic diversity and unpredictability of the cubic system are greatly increased. Moreover, two fractional-order Arneodo chaotic (FOAC) systems with distinct initial conditions are synchronized using a single-state fractional-order sliding mode controller (FOSMC). Finally, an innovative secure communication system based on a microcontroller is designed and implemented by employing the chaotic masking method. As anticipated, the voltage outputs of the microcontroller-based secure communication application demonstrated good agreement with the numerical simulations.

Modelling public social values of flood-prone land use using the GIS application SolVES

Abstract Social values of land use are often excluded when undertaking integrated flood management as they are harder to quantify. To fill this research gap, a geographic information system application called Social Values for Ecosystem Services was used to assess, map and quantify the perceived social values of flood-prone land use in Kuala Selangor, Malaysia. This approach was based on a non-monetary value index (VI) calculated from responses to a quantitative social survey on the public's attitude and preference towards flood management across different land uses. The study outcome is the geospatial representation of flood-prone land use with their social values, which local communities perceive as crucial for flood management. The VI was influenced by elevation and slope, with lower elevations and flatter slopes associated with higher values. Farmland is highly favoured by the local community for flood management, whereas oil palm and rubber plantations are opposed. Tourism received the highest monetary allocations from survey respondents, with the popular firefly park consistently associated with the highest social values. This practical framework contributes to integrated flood management in facilitating decision-makers to evaluate land-use trade-offs by considering their social values when prioritising flood mitigation measures or investments.

Integrated Immunization Information System in Indonesia: Prototype Design Using Quantitative and Qualitative Data.

As the volume of immunization records increases, problems with fragmented records arise, especially since the majority of records in developing countries, including Indonesia, remain paper based. Implementing an immunization information system (IIS) offers a solution to this problem. In this study, we designed an integrated IIS prototype in Indonesia using the design science research (DSR) methodology. The stages of the DSR methodology followed in this study included identifying problems and motivating and defining objectives for a solution, design and development, demonstration, evaluation, communication, and drawing conclusions and suggestions. Specifically, this study began with problem formulation and a literature review. We then applied quantitative (questionnaire with 305 members of the public) and qualitative (interviews with 15 health workers including nurses, midwives, and doctors) data collection approaches. The resulting high-fidelity prototype follows the 8 golden rules. There are 2 IIS designs, one for the public as immunization recipients and another for health workers. The functionalities include immunization history, schedule, recommendations, verification, certificates, reminders and recalls, coverage, monitoring, news, and reports of adverse events. Evaluation of the prototype was carried out through interviews and a questionnaire designed according to the System Usability Scale (SUS) and Post-Study System Usability Questionnaire (PSSUQ). The SUS value was 72.5 or "Good (Acceptable)," while the system usefulness, information quality, interface quality, and overall value on the PSSUQ were 2.65, 2.94, 2.48, and 2.71, respectively, which indicate it has an effective design. This provides a guide for health facilities, health regulators, and health application developers on how to implement an integrated IIS in Indonesia.

Folk medicinal plants in forest fringe villages of tribal’s hill districts of Nagaland, India

In forest fringe villages, folk medicines play a pivotal role in human health care management. The aim of present study was to document the plants employed in the folk medicines by ethnic groups inhabiting forest fringe villages of Nagaland. Field survey was conducted for over two years in 32 forest fringe villages of Nagaland. The data were collected through semi-structured interviews and quantitatively analyzed by statistical tools i.e., Use-value, Relative frequency of citation and Informant consensus factor to identify promising plants for future studies. This research documented 96 medicinal plants employed in the treatment of 59 ailments of human being. The quantitative analysis of the data indicates that some species have relatively high ―use value (UV)‖ and ―relative frequency of citation (Rfc)‖, these are: Azadirachta indica A. Juss., Phyllanthus emblica L. with 0.67 as UV and 3.6 as Rfc. Maximum consensus among informants was observed for the treatment of tooth and gum ailment and under this category Solanum aculeatissimum Moench was frequently cited by informants. Those plants which receive high relative frequency of citation values may serve as potential source for pharmacological studies, especially Azadirachta indica A. Juss. (used as insect repellent), Phyllanthus emblica L. (used in abdominal pain and indigestion), Alstonia scholaris (L.) R.Br. (in flatulence), Aloe vera Mill. (in constipation), Canna indica L. (in genital infection), Gmelina arborea Roxb. ex Sm. (prevent miscarriage), Parkia timoriana (DC.) Merr. (in bleeding piles), Carica papaya (DC.) Merr. (cure ringworm), Solanum aculeatissimum Moench (in foot and toe infection), Thalictrum foliolosum DC. (for vomiting and indigestion), Mentha spicata L. (in stomach ache), Elettaria cardamomum (L.) Maton (incough and cold), Zingiber officinale Roscoe (in cough and cold) and Persicaria hydropiper (L.) Delarbre (in skin infection).

The Application of Developed Delone & McLean Method to Analyze The Success and Effectiveness of Alfagift Application Among Big Cities' Users in Indonesia

This research aims to find out how successful application use is and what factors influence the successful use of online shopping applications. This research uses quantitative methods. Users of online shopping applications in Jabodetabek were given a questionnaire via Google Form as part of the data collection method used in this study. Users of online shopping apps made up the study's population. Purposive sampling was the method used to choose the study's sample. In this study, a sample of one hundred respondents was used. The two types of data analysis are statistical analysis and demographic analysis. The results of the conducted research support the notion that the presence of online shopping applications is beneficial, and that user perceptions play a significant role in the success of an application's use. Respondents can shop online with convenience and utility thanks to the services offered by online shopping applications. User satisfaction with net benefits is the most significant factor, according to the path coefficient and t-test values. This indicates that consumers are happy with the online shopping app and are inclined to accept the advantages it provides. Consumers believe that an element that can raise the net benefit value of online shopping applications is user satisfaction. According to the path coefficient and t-test values, service quality is the factor that has the least impact on users' perceptions of its usefulness. This indicates that consumers believe the usefulness value they perceive from online shopping applications cannot be enhanced by the quality of those services. So, improvements need to be made so that the success of using the application increases.

ОЦЕНКА АЛЛЕЛЬНОГО СОСТОЯНИЯ ГЕНА FAOMT У СЕЛЕКЦИОННЫХ ФОРМ ЗЕМЛЯНИКИ МЕЖСОРТОВОГО ПРОИСХОЖДЕНИЯ

Improving the fruit aroma is one of the promising directions of modern strawberry breeding. The strawberry fruit aroma is a complex trait, formed by a combination of a large number of volatile compounds. The present study shows the results of assessing the allelic state of the FaOMT gene, determining biosynthesis of mesifurane (volatile compound) in strawberry selected forms created in the «I.V. Michurin FSC». The biological objects of the study were 22 strawberry selected intervarietal forms from 12 crossing combinations. The allelic state of the FaOMT gene was identified using codominant SCAR marker FaOMT-SI/NO. As a result of the studies, the marker fragment of the functional allele FaOMT+ was identified in 86.4 % of forms. A heterozygous combination of alleles of the FaOMT gene (average level of mesifurane accumulation in fruits) was detected in 9.1 % forms. The homozygous state of the functional allele was detected in 77.3% forms. The homozygous state of the non-functional allele FaOMT- (mesifurane is not produced) is characterized by three genotypes (13.6 %). The greatest value for strawberry breeding use are forms with the homozygous state of the FaOMT+ allele: 1/6-41 (Vima Zanta × Polka), 2/2-32, 2/2-41 (Faith × Tea), 3/2-62 (Vima Zanta × Privlekatelnaya), 3/4-6, 3/4-7 (Malwina × Tea), 3/9-5, 3/9-12 (Florence × Faith), 5/1-105 (Polka × Vima Zanta), 5/2-23, 5/2-26, 5/2-32 (San Andreas × Monterey), 6/3-5, 6/3-21 (Kimberly × 9/2-2), 7/2-78 (Asia × Maya), 9/2-2, 9/2-7 (Kimberly × Honeoye). These forms are characterized by the maximum level of mesifurane biosynthesis in fruits and their involvement of which in hybridization allows the transmission of the target allele to 100 % of the hybrid seedlings.

The Impact of Hop Freshness on Kettle-Hopped Beers.

Hops are an indispensable ingredient in beer, and the differences in their chemical composition impart the various tastes and aromas associated with different beers. However, during storage, hops undergo changes in their chemical composition. Here, the changes in aroma and bitterness of kettle-hopped beers were evaluated in an experiment conducted on three different hop varieties (Aurora, Celeia and Styrian Wolf) with five different hop storage index (HSI) values (0.3-0.7). Hops were added to boiling wort for 5, 45 and 90 min. Alpha-acids, iso-alpha-acids, humulinones, bitterness units and hop aroma compounds in the samples were chemically analysed. All samples also underwent sensorial analysis. The old hops were not problematic in terms of bitterness or early hopping time. However, later additions of old hops reduced the quality and intensity of the hop aroma. The limit value for use without negative consequences for kettle hopping was set at HSI 0.5 for Aurora and Celeia and HSI 0.6 for Styrian Wolf.