Use For Purposes Research Articles

Determination of the optimal interval of the average load of the scientific equipment of the center for collective use

Modern Centers for the collective use of scientific equipment represent the basis for the formation of unique scientific competencies and competitive advantages in the market of research services. As highly specialized tools of scientific and innovative infrastructure, whose activities are aimed at implementing priority areas of scientific and technological development of the country, Centers funded, including from the state budget, face the need for a reliable assessment of the effectiveness of public funds investments, which leads to the formation of an objective need to improve the organization of work in this direction. The state regulator legislatively establishes requirements for monitoring the effectiveness of the use of expensive scientific equipment and a unique instrument base, however, the regulatory approach does not take into account the specifics of the functioning of the CCP regarding specialization, diversity of the instrument base, etc. This article discusses the problems of applying a standardized approach to evaluating the effectiveness of the centers for the collective use of scientific equipment and unique scientific installations. The general nature of the indicators included in the requirements for centers for the collective use of scientific equipment and unique scientific installations that have been created and (or) the functioning of which is provided with the involvement of budgetary funds does not reflect the differences between centers for collective use in terms of functioning, equipment composition, types of research and other essential characteristics. Attention is focused on one of the leading indicators, namely, the degree of loading. The authors believe that the averaging of requirements can lead to data distortion and neutralize the results of state monitoring, and suggest approaches to developing criteria for evaluating the optimal interval of the average load of scientific equipment of the center for collective use and justification of the appropriate time of such, depending on the type and purpose of use. The study was conducted on the example of the Center for Collective Use of St. Petersburg State University — St. Petersburg State University Science Park.

Cyber Physical Systems: A Brief Survey and an Application of a MIR (Mobile Industrial Robot) for Inspection

This work refers to the realization of a Cyber Physical System (CPS), i.e. modeling, analysis, and integration of a MIR (Mobile Industrial Robot) platform with an industrial robot, in order to test its operating conditions. MIRs, although usually employed in industrial environment, can be used in sectors such as inspection, assistance, defense, production, remote exploration as well as search and rescue. In addition of being programmable, thanks to the provision of sensors and navigation systems, they can adapt in real time to various environmental contexts and purposes of use. The objective of the paper is to create a CPS of a MIR that can basically perform two fundamental actions. The first one is to carry out movements in predominantly external environments and therefore with various types of terrain. The second fundamental action is the pick and place operations, i.e. the robot must be able to carry out the manipulation of objects.

Peculiarities of legal regulation and protection of human biological material depending on the purpose of use

Peculiarities of legal regulation and protection of human biological material depending on the purpose of use

Peculiarities of self-education of students in the conditions of the digital world

The article examines the historical perspective of the phenomenon of self-education, which testified to the exceptional growth of its role in building a continuous educational trajectory of an individual for its realization, as well as deepening its personal orientation. Thanks to the study of the age characteristics of the self-educational activity of schoolchildren, the gradual accumulation of knowledge, abilities, skills and personal qualities necessary for its implementation has been established. Four stages of formation of age characteristics of self-education of schoolchildren are distinguished - propaedeutic (primary school age), preparatory (pre-adolescent age), formative (adolescent age), developmental (senior school age). Basic school is defined as the basic stage as the period when schoolchildren acquire and develop knowledge, abilities and skills, motivation and interest in learning, self-evaluation and reflection of their own activities. This period is the most sensitive to the impact on the self-educational competence of schoolchildren, including due to the age characteristics of pre-adolescence and adolescence, when the awareness of individuality and the need for independence become the leading motives of personal development. This period is decisive for the formation of stable knowledge, abilities, skills and personal qualities, which in the future should be used to solve the complex tasks of youth in terms of personal development. It is substantiated that digital technologies have a significant potential for self-education and development of schoolchildren. They become effective tools for enriching the educational process and providing access to information at any time. Digital technology tools open wide opportunities for self-education and personal development of schoolchildren. The classification of digital technology tools according to the leading purpose of use in self-education is proposed: digital resources-sources of educational information; digital activity environments; digital resources for self-monitoring and self-diagnosis; digital resources for organizing personalized training; digital resources for creating your own educational content; digital resources to ensure communication. Establishing pedagogical conditions for the formation of self-educational competence of students of grades 5-9 of general secondary education institutions with the use of digital technologies appears as a promising direction for further scientific research.

대학생 SNS 활용의 학습실태, 학습경험 및 이용목적

Objectives Although many previous studies have explored the positive effects of SNS, the potential role of SNS in education, and the content of learning experiences, there is a lack of research on major issues such as differences in learning experiences, improvements of learning experiences, and the purpose of use in SNS. Thus, this study aimed to identify the current status of college students’s use of SNS in learning situations, differences in specific learning experiences on SNS according to background variables, and the relationship between specific learning experiences and the purpose of SNS use.
 Methods Thus, this study collected data through a survey of 431 undergraduates and conducted frequency analysis, ANOVA, IPA, and network analysis.
 Results First, a large number of students used various SNS such as Instagram, YouTube, and Facebook for various periods of time and more in the evening. Second, differences in learning experiences on SNS are well showed in the background variable of personality, with extroverted personality having a greater effect than introverted personality. In the meantime, gender differences were not showed, and major showed very limited differences. Third, among the learning experiences, behavioral rules, resolving questions, and experiencing new fields were identified as areas that need to be urgently improved. Fourth, the related purposes of use vary depending on each learning experiences, but connection and expansion, acquisition of learning information/advice were related to all purposes of use, and centrality indicators of network analysis supported this.
 Conclusions In accordance with the results, related discussions were proposed and implications and recommendation for future studies were outlined.

Analysis of Satisfaction and Characteristics of Using University Campus Gardens for Enhancing the Mental Well-Being of University Students

Background and objective: Recently, mental health problems of university students have emerged due to low employment rates and increased unemployment. Therefore, this study attempted to examine the effect of the characteristics of and satisfaction with university campus gardens on mental well-being and to suggest ways to create and utilize campus gardens as a means of promoting mental health for university students.Methods: A survey was conducted on university students and graduate students attending G University located in J City, Gyeongsangnam-do. The survey was conducted from July 1 to December 10, 2019. The survey results of 516 subjects were ultimately used, and the survey items consisted of general characteristics, satisfaction with garden use, garden use characteristics, and mental well-being. The survey results were analyzed using IBM SPSS Statistics 25.Results: In the case of garden use characteristics, 'simple travel path' was the most common purpose of use, and the highest frequency of use was 1-2 times a week. The factor that had the strongest positive correlation with overall satisfaction was satisfaction with using the garden as a leisure and recreation space, and the frequency of use also had a positive correlation. As a result of examining the effect of satisfaction and frequency of use on mental well-being, it was found that symbolism, visual beauty, and frequency of garden use had a positive effect.Conclusion: In order for university students to use campus gardens as a tool to improve their mental well-being and as a place for leisure and recreation, efforts must be made to adequately arrange the characteristics of the region where each university campus is located and the symbolic elements of each university, to enhance the scenic beauty so that students can experience visual beauty, and to fulfill visual satisfaction by arranging plants or facilities with distinct characteristics for each season.

‘기계번역’ 관련 국내 번역학 연구동향 분석

This study focuses on the role and importance of machine translation in the digital transformation(DX) environment led by the artificial intelligence(AI) and examines the perspectives of translation researchers, focusing on the use of related terminology. The perspectives on ‘machine translation’(MT) from the research dataset(2014-2023) is categorized into seven types: user and object, detailed function, domain, translation quality, performance method, and purpose of use. The discussions in translation studies related to the perspective and status of MT terminology use can be comprehensively summarized as follows: 1) The status of MT and human translators; 2) Technological changes and innovative technologies in MT; 3) Coexistence of human and MT; 4) Hybridity and diversity in the use of terminology related to MT. The mixed use of different MT-related terminologies prevailing in translation academia reflects the rapid pace of changes in related technologies. Thus, it is necessary to keep options open to diversity rather than unity and consistency of terminology. In conclusion, this study provides a comprehensive overview and recognition of the topography of research, areas of interest, and the degree of focus of discussion on MT-related research in Translation Studies of Korea.

Mathematics teachers' perspectives on the use of math teaching materials

The aim of this study is to reveal the perspectives of secondary school mathematics teachers about the use of materials in mathematics teaching. For this purpose, the teachers' use of materials, the materials they have used, and their views on the role of using materials were analysed. In this context, the research was conducted with case study, one of the qualitative research designs. In accordance with the purpose of the research, easily accessible case sampling method was used to form the study group. The data of the study were collected from eight secondary school mathematics teachers working in different schools on a voluntary basis with a semi-structured interview form consisting of three open-ended questions about the use of materials in mathematics teaching. The interviews were audio recorded and the dialogues were transcribed. The data obtained were analysed by content analysis method. As a result of the study, it was determined that teachers' perspectives on the use of materials were built on four themes: the role of purpose of use, the role of effect on teaching, the role of effect on students and the materials used. Regarding the purpose of using the material, it was determined that most of the teachers emphasised the role of attracting attention to the lesson, the role of concretisation as the effect on teaching, and the role of facilitating understanding and remembering as the effect on students. Although the teachers stated that the use of materials had a positive effect, it was concluded that their use in the application dimension was at a low level. Another striking result of the study was that the concrete materials that some teachers stated that they used were actually course materials. When the focus was on what they used as materials, it was determined that all of the examples given were concrete materials actively used in the geometry learning domain. In addition, only one of the eight teachers participating in the study mentioned virtual learning objects (manipulatives) other than concrete materials as materials.

Analysis of Smart Technologies Used in Smart Hotels

Purpose –The development and widespread use of smart technologies have led to the emergence of smart hotels. Smart hotels are smart systems that provide benefits to all stakeholders (staff, managers, customers, hotel owners) in the hospitality sector with smart technologies and interact with each other. Hotels that utilize smart technologies differentiate the hotel service, provide superiority in competition, and reduce hotel costs. This study aims to analyze the hotels in the world where smart technologies are used and the type, purpose of use, and customer touchpoints of the smart technologies used in these hotels and to provide a perspective and foresight for hotels.Design/methodology/approach –The data used in the research were obtained from secondary sources. The document analysis method, one of the qualitative research methods, was used to analyze the sources. The content analysis technique was used to analyze the data. A seven-step systematic review process was applied in the research. The seven-step review process consists of the following stages: (1) determining the review objectives and formulating the research questions; (2) determining the search terms and selection criteria; (3) searching for smart hotel applications before clarifying the exclusion and inclusion criteria; (4) evaluating the quality and suitability of smart hotel applications; (5) determining the content analysis review variables (6) conducting content analysis, and (7) synthesizing and reporting the findings. The population of the research consists of all hotels where smart technologies are used. In the research, 1084 smart hotels were determined as a sample. The data was collected via the internet between 1 December 2022 and 20 June 2023.Findings –The most used technologies in hotels are cloud computing, artificial intelligence, big data, IoT, NFC, and recognition technologies. Blockchain, mixed reality, metaverse, and 3D printers are the least used technologies. The most common use of smart technologies is at the first, second, third, and fourth customer touchpoints. While the majority of hotels use 6 or more types of smart technologies, the second place is occupied by hotels using between 2 and 5 types of smart technologies. Smart technologies are most often used in customer-facing services and transactions.Discussion –Providing a personalized experience and responding quickly to their guests' needs is a common goal for all smart hotels. Some hotels provide their guests with IoT-enabled tablets to control all the functions offered, while others have mobile applications downloaded from Play stores. Some hotels are investing more in AI and robotics technology for butler, housekeeper, and doorman services, while others are using AI, big data, and IoT to provide personalized services to customers. In the future,smart hotel rooms are expected to be different from today, and even unmanned hotels are expected to appear more

Spatial-temporal investigation of water quality and pollution of Sirvan River (Sanandaj-Kurdistan)

Gaveh-rood and Gheshlagh Rivers are the main branches of the Sirvan River. Zhaveh dam was built on this river, with the purpose of use in agriculture and industry. Determine the water quality and water pollution in the Sirvan River and predicting the trophic conditions of the Zhaveh Dam reservoir are important goals of this study before the operation phase of the dam. Sampling was done at 5 selected stations of surface water in the branches of the Gheshlagh and Gaveh-rood Rivers, as well as the reservoir of Zhaveh Dam location. In this study, 27 water quality parameters (such as physical variables, hardness, alkalinity, nutrient, and sulfate) were investigated. Comparing the data of the current research with different standards showed that only the nitrate was within the permissible limit, but other parameters from one to several times (especially organic nitrogen) exceeded the permissible limit, which indicates that the water is polluted and has bad quality in different stations (especially in stations 2 and 3 in Gheshlagh branch). Based on the classification of the Iran water quality index (IRWQI) and the Comprehensive Water Pollution Index (CPI), all sampling stations (except the upstream of Gheshlagh River, Station 1) were classified in the “very bad” group (class V) and severely polluted (CPI=2.01) classes, respectively. Based on the values of TN and TP, the area was classified as a hypertrophic condition. Therefore, it is recommended to improve the water quality of the river to reduce adverse effects and promote sustainable use of water sources.

Peculiarities of the special knowledge application in the investigation of taking a government official or law enforcement officer as hostage

An effective investigation of any criminal offence is not possible without the use of specialised knowledge. Taking a government official or law enforcement officer as a hostage is no exception; on the contrary, from the moment information about the seizure is received, there is a need to engage specialists from various fields of knowledge, including a forensic expert, dog handler, explosives expert, etc.
 The purpose of the study is to investigate the scientific findings on the definition of the concept of “special knowledge” and to clarify its role in the investigation of criminal proceedings under Article 349 “Taking a government official or law enforcement officer as a hostage” of the Criminal Code of Ukraine. To achieve this goal, the study used the following methods: analysis, synthesis, comparison, critical thinking, and systemic and structural methods, with the aim of conducting a thorough study of theoretical developments, results of investigative and judicial practice, systematising the results and formulating conclusions.
 It has been argued that one of the ways to improve the efficiency of detection and investigation of crimes is to use specialised knowledge in the activities of law enforcement agencies. In particular, when investigating the taking of a government official or a law enforcement officer as a hostage, special knowledge should be considered as skills and abilities in a particular area which are used in criminal proceedings and contribute to establishing the truth in the case, which contributes to the effective completion of the investigation.
 As a result of the study, the special knowledge has been classified, namely: by the procedural position of the person who uses it, by the form of expression, by the need to use special knowledge at a certain stage of investigation, by the form of the final result, by the field of knowledge, by the degree of secrecy, by the purpose of use, by the significance of the results obtained.
 According to the results of a comprehensive analysis, three forms of special knowledge application are proposed in the course of investigation of taking a government official or law enforcement officer as a hostage: specialist involvement in investigative (detective) actions, appointment of forensic examinations and consulting.
 The role of specialists when involved in conducting typical investigative (detective) actions, such as: inspection of the scene, interrogation and investigative experiment, has been described. An indicative list of specialists who can assist an investigator has been proposed, and the tasks which can be solved through such interaction have been outlined. An indicative list of tasks facilitated by the appointment of forensic examinations has been provided.

A Study on Korean Customers’ Intentions to Repurchase for the Sustainable Growth of the Athleisure Market

The athleisure market has experienced significant growth in recent years, establishing itself as a mainstream trend in the fashion industry. Given the escalating demand for athleisure wear, businesses must secure sustainable growth by comprehending customer intentions to repurchase. This study conducted a survey to collect customer data in order to study customers’ intentions to repurchase athleisure wear. Additionally, survey questions were developed through a literature review and incorporated into the survey. To determine the suitable sample size for the analysis while considering statistical significance, the study took into account the current total population of South Korea, a confidence level of 95%, and a margin of error of 5%. This calculation determined that a sample size of 400 in this study was well-suited to the data analysis. In a study investigating customer intentions to repurchase athleisure wear, several influential factors were identified. Firstly, the purpose of product use (motivation for wearing) and functionality emerged as critical determinants affecting customer intentions to repurchase. Customers who perceived a clear purpose of use and functional excellence were more inclined to repurchase, underscoring the paramount importance of designing athleisure products with a strong focus on functionality. Nevertheless, it was observed that male and female customers exhibited distinctive levels of satisfaction with the product. Male customers placed greater emphasis on the product’s essential attributes, whereas female customers highlighted the importance of how athleisure wear fits into their everyday lives and its aesthetics. This divergence indicates that male and female customers possess varying preferences when it comes to product attributes. Consequently, it is imperative to devise tailored marketing strategies that align with the distinct priorities and interests of male and female consumers during the sale of athleisure wear products. In summary, this study underscores the significance of comprehending customer behavior and intentions to repurchase within the athleisure market. By prioritizing the articulation of the product’s purpose and enhancing its functionality, businesses operating in the athleisure sector can secure enduring growth and success.

Evaluation methods for development and selection of novel probiotics

Probiotics is currently one of the science–driven products which have undergone considerable evolution with acclaimed health benefit. Besides the discovery of antibiotics some years ago, probiotics has found considerable applications in life sciences, aquaculture, poultry, piggery, animal health, and human healthcare. There are many novel putative probiotic organisms that could be found in different substrates or carbon sources among bacteria, bacteriophages, fungi, yeasts, microalgae etc. A search approach to developing candidate probionts could be made among these variable sources. Invariably, the methods for isolation and evaluation of the probiotic organisms are many depending on the purpose of use. To wit, different methods are used in aquaculture industry or animal health and human healthcare. For instance, the Food and Agriculture organization FAO of the United Nation/ World Health organization UNO/WHO has already developed international guidelines for the evaluation of probiotics meant for the later. Consequently, this chapter reviews the different methods and approaches for development and evaluation of novel potential probiotics for aquaculture production, taking into considerations the differences in environments and the complex needs and nature of aquatic species. Qualifying a strain of bacterium as a probiotics and selection of such strain for probiotic purposes has not been easy. Principally, scientific driven approaches have been used to primarily decipher the specific trait a desirable probiotic strain should possess, and also developed methods used for selecting and evaluating candidate probiotics. This review will addressed the different methodologies which have been used to analyze microbial cells, which promises to serves for probiotic strains for use in aquaculture industry

Are cannabis use problems comparable across individuals using for recreational and medical purposes? An international cross-sectional study of individuals who use self-grown cannabis

BackgroundLittle is known about cannabis use problems among individuals who use cannabis for medical purposes and whether rates and determinants of cannabis use problems in medical users differ to those observed among individuals using for recreational reasons. This study examines whether Severity of Dependence Scale (SDS) scores differ across individuals who use self-grown cannabis for the following reasons: “recreational only”, “medical and recreational” and “medical only”. Furthermore, the study tests whether cannabis use frequency, cannabis strain, and type of cannabis influences the strength of the association between purpose of use and cannabis use problems. MethodsData (n = 5,347) were collected from a subsample of the Global Cannabis Cultivation Research Consortium project, focusing on small-scale cannabis growers in 18 countries. Robust regressions analyzed differences in SDS scores across the three use motivation groups. ResultsCompared with respondents reporting only recreational motivations of cannabis use, those with medical (with and without recreational) motivations were associated with lower SDS scores (B: -0.190 and B: -0.459, p < 0.001 respectively). Daily use was associated with significantly higher SDS scores across all cannabis motivation groups, albeit the magnitude of the association was significantly smaller among individuals with medical motivations of use. ConclusionThe extent to which people experience cannabis use problems, and the determinants of these problems may differ depending on whether cannabis use is motivated by recreational or medical purposes. As such, the findings of the current study suggest that public education efforts, harm reduction approaches and policy responses should be tailored depending on whether cannabis is used for recreational or medical purposes.

Indoor soundscape design of autonomous vehicles that comprehensively applies acoustic characteristics of architectural space type

According to the paradigm shift in the indoor space design of future autonomous vehicles, the indoor space of the vehicle was classified according to the purpose of use and the optimal soundscape design for each type was proposed. The vehicle selected for the measurement can be the basic type of future autonomous vehicles, a relatively wide van suitable for building space investigation, and the space target was selected as spaces for listening to music, working (meeting), and resting. Accordingly, for the soundscape design, an audible sound source was produced and used for evaluation by conducting a sound field survey and computer simulation inside the vehicle. The indoor soundscape of the vehicle was evaluated by providing binaural sound source in the auditory test environment. The evaluation indicators were selected based on the indoor soundscape parameters in the architectural spaces such as concert halls and office buildings.

THE EFFECT OF HIGH-TEMPERATURETREATMENT ON THE SORPTION PROPERTIES OF NATURAL BLUE CLAY

Relevance. Natural mineral clays are widely used not only in technology, but also in medicine, cosmetology, and the food industry, due to their unique properties. The high degree of dispersion, sorption-adhesive properties of clay materials, as well as the rich mineral composition also determine their therapeutic effect. Depending on the area and purpose of use, clays are subjected to heat treatment, which can lead to a change in their properties. The purpose of the work is to study the influence of various heat treatment modes on the sorption properties of clay for its further use in pharmaceutical practice. Material and methods. The object of study is Kimmeridgian blue powdery of clay blue Undory in the Ulyanovsk region. Determination of clay moisture content was carried out using an AND MF–5 moisture analyzer (Japan). To completely remove moisture from clay by high-temperature treatment, an SNOL 7.2/1100 electric furnace (Lithuania) was used. The influence of the clay calcination regime on the thermal stability of the clay powder and the ongoing endo- and exothermic effects with loss of sample mass was studied using a Q-1500D derivatograph (Hungary). Adsorption activity was assessed by direct spectrophotometry using an SF-56 “LOMO-Spectrum” spectrophotometer (Russia). Results. DTA of the derivatogram showed the thermal stability of the clay powder in the temperature range from 20°C to 900°C with variations in endo- and exothermic effects. Based on these data, heat treatment modes and sample exposure time were selected. The experiment showed a statistically significant decrease in adsorption activity with increasing temperature and various variations in exposure time. Conclusions. To preserve the adsorption properties of clay blue Undory when removing moisture from it, it is not rational to use high-temperature treatment. The most optimal parameters for drying clay are: temperature 80 ° C, exposure time - 240 minutes.

Development of a product quality improvement strategy

In modern competitive conditions, product quality is becoming one of the main indicators that users pay attention to when choosing a product. Thus, it is relevant to analyse the process of forming a high-quality production strategy. The purpose of this study is to analyse the methods of forming a strategy for improving product quality based on examples of individual companies. The main research methods used in the study were: analysis, forecasting, historical, etc. The paper examines certain methods of product quality management, namely: Lean Management, Six Sigma, Theory of Constraints, and Total Quality Management. Their features, purpose of use, and implementation stages were outlined. In particular, it was shown that the main goal of Lean Management is to reduce time and costs to ensure high quality standards, while Total Quality Management is more focused on investigating customer preferences and optimising the internal motivations of company employees. Thus, it was concluded that each of the methods can be used by different companies at different times and lead to different performance indicators. This indicates the relevance and necessity of conducting separate research by the company's managers to choose the approach that will be most effective for them. In addition, the implementation of these methods in individual enterprises was evaluated, and the problems and advantages that were obtained from them were described. The conducted research brings new knowledge to the theory of marketing, and its conclusions can be used by companies in practice, for example, during the process of creating their own competitive strategy in the market

Self-Disclosure and Social Media Use among Younger and Older People with Dementia: An Internet-Mediated Mixed-Methods Study

Social media can facilitate self-disclosure of a stigmatized identity. This mixed-methods study explores self-disclosure by people with dementia on social media, comparing patterns and purpose of use by those aged 65 and above versus those aged under 65. Of 143 internet-using respondents of an online survey, 77 (aged between 44 and 88 years) were users of social media. Facebook was the most commonly used platform (95%), followed by Twitter, Instagram, LinkedIn, YouTube, and TikTok. People with dementia aged under 65 used more platforms and used social media more frequently than older counterparts [χ 2 = 5.58, p = .031]. Content analysis of open-ended questions, validated and extended through qualitative interview data, showed younger users shared dementia-related information for purposes of advocacy and awareness whereas older users prioritized the dementia journey. Social media gives people with dementia a voice to share their experiences, raise awareness, and support themselves and other individuals affected by the condition.

Analysis of the Behavior of Different Steel Alloys Subjected to Uniaxial Mechanical Fully Reversed Fatigue Tests

The favorable choice of material for structural elements for a specific purpose of use depends on the properties of the material that define its behavior in given conditions. Considering the possibility of the appearance of different types of mechanical failures during work under defined conditions, this paper deals with research on the behavior of materials subjected to uniaxial mechanical fully reversed fatigue tests at room temperature in an air atmosphere. The research refers to structural steel (S235JRC+C /1.0122), alloyed carbon steel (18CrNi8/1.5920) and chromium martensitic stainless steel (X46Cr13/1.4034). The tests were performed in an air atmosphere at room temperature, and the test results are presented in the form of a stress-life (S-N) diagrams. The fatigue (endurance) limit (/MPa) obtained for each of the tested materials subjected to a mechanical fully reversed fatigue test, (R = - 1), at room temperature, is as follows (material / fatigue limit): 1.0122/202; 1.5920/285; 1.4034/325. In addition, at room temperature, the parameters such as ultimate tensile strength and yield strength, as well as the level of Charpy impact energy, were determined.

Association of self-reported use of cannabis for the purpose of improving physical, mental, and sleep health with problematic cannabis use risk

BackgroundLittle is known about health-focused cannabis use purposes and their associations with risk for problematic cannabis use. This cross-sectional study examined three broad cannabis use purposes and association with risk for problematic use among young adult cannabis users who report using for > 1 health reasons.MethodsYoung adults completed an electronic survey as part of an ongoing study on substance use and health. Those who self-reported past 6-month use of ≥ 1 cannabis products—smoking, vaping, dabbing, eating, and blunts—were included in the analysis. Their purposes for use were coded into three categories: sleep, mental, and physical health. Problematic cannabis use (PCU) was measured with the three-level structure Cannabis Abuse Screening Test (CAST-3). Adjusted multivariable regression models were used to estimate use purposes associated with with problematic cannabis use at the p < 0.05 level.ResultsParticipants (n = 954) were mostly female (63.94%) and Hispanic (54.93%). Mental health was the most endorsed reason (73.38%) for use among study sample. Among participants, 36.3% were classified as being at severe risk (CAST-3 score ≥ 8). There was a significant association between PCU risk and reporting cannabis use for physical health (p < 0.01), mental health, and sleep health (p < 0.01) purposes. Those who used cannabis for physical heath purposes had about four times the risk (adjusted relative risk ratio (aRRR) = 4.38, 95% CI = 3.06–6.69), those who used for mental health had about three times the risk (aRRR = 2.81, 95% CI = 1.86–4.72), and those who used for sleep health had almost two times the risk (aRRR = 1.83, 95% CI = 1.17–2.63) for severe PCU.ConclusionAll cannabis use purposes examined increased risk of problematic cannabis use. Physical health use purposes was associated with highest PCU risk. This study demonstrates the risk for cannabis use disorder associated with self-medicating with cannabis.