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Solid oxide fuel cells (SOFCs) are efficient electrochemical energy device that converts the chemical energy of fuels directly into electricity. It has a high power and energy density and a sustainable source of energy. The electrode (cathode and anode) materials are essential for the efficient operation of SOFCs. Several electrode materials have been studied in the last two decades, mainly perovskite materials. The investigated materials have resulted in improved electrochemical performance of SOFCs, increased commercial viability, and reduced operational costs. However, the sustainability of most of the material compositions (heteroatoms) used as electrodes in SOFCs has never been investigated. The present study examines the recent progress, challenges, and constraints associated with electrode material development in SOFCs from a sustainable perspective. Heteroatoms majorly employed for doping in electrode materials’ long-term availability on the earth’s surface was established. The study also provides an overview on the current state of electrode materials development for symmetrical solid oxide fuel cells. This is intended to address the complexities of different materials development for the anode and cathode.

The demographic shifts in Kazakhstan impact legal proceedings, with a growing number of participants who lack proficiency in the language of court proceedings. This highlights the importance of employing court interpreters. The purpose of the article was to reveal the importance of this specialist in the process of considering a case and providing citizens with the right to justice. The following methods were used in the study: analysis, synthesis, comparison, legal doctrinal, comparative, abstraction. As a result, a number of problems were revealed regarding the implementation of professional activities by a court translator in the Republic of Kazakhstan. The study conducted a comparative analysis of court interpreters in Kazakhstan and foreign jurisdictions, highlighting commonalities and differences in their legal status, authority, and qualifications. In addition, as a result of the study, statistical indicators were presented describing the number of cases considered by the courts of the Republic of Kazakhstan with the participation of foreign citizens. The study yielded recommendations for establishing a centralized database of court interpreters in Kazakhstan and refining candidate requirements, especially concerning education levels. These insights can inform the development of training programs and certification processes for translators in the country.

Solid oxide fuel cells (SOFCs) have emerged as promising energy conversion devices, offering high efficiency and environmental sustainability. Efficient electrode materials are crucial for the overall cell performance of SOFCs. Perovskite type Nd1-xSrxMn0.5Cr0.5O3-δ (x = 0.25, 0.5) (NSCM25, NSCM50) was synthesized via conventional solid-state reaction technique. Structural, thermal and electrochemical characterizations were performed using X-ray diffraction, thermogravimetric analysis, conductivity measurements, scanning electron microscope, thermal expansion coefficient analysis and impedance spectroscopy. Structural analysis revealed that both compositions exhibit orthorhombic symmetry in the Pbnm space group. Thermogravimetric analysis (TGA) indicated minimal weight changes in both pre-reduced and as-prepared samples. The electrical conductivities in air at 600 ℃ were found to be 1.69 S/cm for NSCM25 and 4.91 S/cm for NSCM50, with a decrease observed under reduced oxygen partial pressure. Polarization resistance (Rp) analysis was conducted on symmetrical cells composed of NSCM25|GDC|NSCM25, NSCM50|GDC|NSCM50, NSCM25|YSZ|NSCM25, and NSCM50|YSZ|NSCM50. At 900 ℃, the polarization resistances were 0.12 Ωcm2, 0.21 Ωcm2, 0.11 Ωcm2, and 0.67 Ωcm2, respectively. The results suggest that NSCM25 and NSCM50 hold promise as electrode materials for symmetrical solid oxide fuel cells (SSOFC) employing YSZ or GDC electrolyte.

The objective of this study was to assess the performance of a Humidifier-Dehumidifier (HDH) desalination system paired with thermoelectric cooling, in order to achieve effective water desalination. The system employed the thermoelectric module's heating and cooling capabilities to warm the water entering the HDH system and remove moisture from the humid air. An investigation was conducted to examine the impact of varying sea water mass flow rate (SWMFR) and air mass flow rate (AMFR) on the performance characteristics of the system. These metrics include gain output ratio (GOR), coefficient of performance (COP), fresh water generation, and dehumidifier efficiency. The data collected clearly demonstrated that the performance of the system was significantly influenced by the WMFR and AMFR. The ideal values for the amount of fresh water produced, COP, GOR, and dehumidifier efficiency were determined to be 140 gs per hour, 0.93, 0.7 and, 52.5 %, respectively. The experimental assessment showcased the capability of the integrated HDH desalination with thermoelectric cooling system as a highly efficient and economically viable approach for desalination, particularly in regions with limited water resources.

Cancer is one of the leading causes of global mortality, and its incidence is increasing annually. Neutron capture therapy (NCT) is a unique anticancer modality capable of selectively eliminating tumor cells within normal tissues. The development of accelerator-based, clinically mountable neutron sources has stimulated a worldwide search for new, more effective compounds for NCT. We synthesized magnetic iron oxide nanoparticles (NPs) that concurrently incorporate boron and gadolinium, potentially enhancing the effectiveness of NCT. These magnetic nanoparticles underwent sequential modifications through silane polycondensation and allylamine graft polymerization, enabling the creation of functional amino groups on their surface. Characterization was performed using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), energy dispersive X-ray (EDX), dynamic light scattering (DLS), thermal gravimetric analysis (TGA), and transmission electron microscopy (TEM). ICP-AES measurements indicated that boron (B) content in the NPs reached 3.56 ppm/mg, while gadolinium (Gd) averaged 0.26 ppm/mg. Gadolinium desorption was observed within 4 h, with a peak rate of 61.74%. The biocompatibility of the NPs was confirmed through their relatively low cytotoxicity and sufficient cellular tolerability. Using NPs at non-toxic concentrations, we obtained B accumulation of up to 5.724 × 1010 atoms per cell, sufficient for successful NCT. Although limited by its content in the NP composition, the Gd amount may also contribute to NCT along with its diagnostic properties. Further development of the NPs is ongoing, focusing on increasing the boron and gadolinium content and creating active tumor targeting.

Spring soft wheat is a primary agricultural crop of North Kazakhstan, the growing process of which is done in harsh weather conditions due to the fact, that early spring drought and the biggest rainfalls at the end of June and beginning of July, are normal in the region. Due to this fact, scientists and producers have mistakenly believed that in the Northern region, spring wheat should be sown later, adjusting the main phase of plant development “tillering – stem elongation” under the maximum summer rainfalls. The research aims to establish the dependence of spring wheat yield on the amount of spring-summer rainfall at different sowing periods. The following methods were used in the research: field method, methods of clustering, variation, correlation and dispersion analysis. Analysis of observations from 2012-2021 showed that years with an early-spring drought and mid-summer maximum rainfalls were less than one-third of ten and about 60% were years with no spring drought, although the maximum rainfall period was shifted to the June month. However, only one year (10%) was characterized by a severe spring drought and a shift of summer rainfalls to August. The highest yield (26.9 c/ha) of the studied wheat species was observed in years with an atmospheric precipitation shift at the beginning of the summer period and early sowing date. During years of early spring drought with the biggest rainfall in mid-summer, relatively high yields (20.5 cwt/ha) are observed in the later sowing dates. The practical value of the research is determined by the fact, that in Northern Kazakhstan the sowing dates of spring wheat are not closely tied to the calendar dates and depend significantly on the climatic conditions of the region and the weather conditions that prevailed in the spring and summer period of a specific year

The depletion of fossil fuels in the current world has been a major concern due to their role as a primary source of energy for many countries. As non-renewable sources continue to deplete, there is a need for more research and initiatives to reduce reliance on these sources and explore better alternatives, such as renewable energy. Hydrogen is one of the most intriguing energy sources for producing power from fuel cells and heat engines without releasing carbon dioxide or other pollutants. The production of hydrogen via the electrolysis of water using renewable energy sources, such as solar energy, is one of the possible uses for solid oxide electrolysis cells (SOECs). SOECs can be classified as either oxygen-ion conducting or proton-conducting, depending on the electrolyte materials used. This article aims to highlight broad and important aspects of the hybrid SOEC-based solar hydrogen-generating technology, which utilizes a mixed-ion conductor capable of transporting both oxygen ions and protons simultaneously. In addition to providing useful information on the technological efficiency of hydrogen production in SOEC, this review aims to make hydrogen production more efficient than any other water electrolysis system.

Background and Aim: Tuberculosis is an infectious disease that affects humans and animals. This study aimed to review the influence of economic and organizational, veterinary, and sanitary measures on the epizootic situation of animal tuberculosis and the epidemiological situation of human tuberculosis in the Republic of Kazakhstan. Materials and Methods: The epizootic situation of cattle tuberculosis in Kazakhstan was studied based on the annual statistics of allergy testing of animals with tuberculosis by the Committee for Veterinary Control and Supervision of the Ministry of Agriculture of the Republic of Kazakhstan, according to the results of allergic, clinical, and pathological studies, including laboratory studies of biomaterials from animals that reacted to tuberculin. Tuberculinization of cattle in the country is performed twice in the spring and autumn using tuberculin purified protein derivative for mammals. In addition, mass diagnosis of human tuberculosis is conducted by radiology. Results: The authors assessed the epizootic situation of tuberculosis in cattle in Kazakhstan from 1991 to 2019. The analysis results showed that at the beginning, the epizootic situation in cattle tuberculosis was challenging. However, since 2001, there has been a noticeable decrease in tuberculosis in animals in Kazakhstan, which has had a favorable effect on the epidemic situation of human tuberculosis. Conclusion: According to the analysis results, the measures used in the Republic of Kazakhstan to prevent tuberculosis improved the well-being of livestock farms. The proper conduct by qualified veterinary specialists on allergy testing of animals and differential diagnosis of nonspecific tuberculin reactions allows establishing an accurate epizootic picture of tuberculosis. Furthermore, strict adherence to instructions on the diagnosis and prevention of tuberculosis, implementation of developed veterinary, sanitary, and organization, and economic measures can improve the epizootic picture of tuberculosis, reducing the risk of human tuberculosis.

The basis of this article is the study of such a form of farming in rural areas as personal subsidiary farms (PSF). The importance of private farming is actualized both in matters of a social nature in rural areas and issues of sustainable development of entire sectors of the economy. The article clarifies the main socio-economic functions of individual subsidiary farms. The basics of motivation and goal setting for entrepreneurship are considered. And in this regard, a model is given for increasing the business activity of personal subsidiary farms based on small-scale poultry meat production. The model is described both from the point of view of the mechanisms of interaction of participants and from the organisation's point of view. The financial mechanisms of this model and its features are also given. Many economists consider PSF the most massive, and economically stable; one might even say the surviving producer of agricultural products sustainably. This phenomenon lies in the economic nature of PSF. In these conditions, personal subsidiary farms are additional for those who are engaged in hired work. For the majority, this is about 3 million people who are considered "self-employed", the only source of income. Of particular interest is the financial model of this project, which was developed by the project's authors and tested for three years. This model allows you to reduce the price of finished products and keep it 15% below the market. The project showed that personal subsidiary farms without special conditions could not transform massively into individual entrepreneurs or peasant farms. To do this, the state needs to organize prototypes of such operators on the ground, which will begin to perform all intermediary functions to improve the business environment of each rural locality.

This research examines the role of input and process-based approaches in enhancing faculty members' commitment to their research careers in the context of higher education. Specifically, we investigate the mediating effect of research self-efficacy on the relationship between professional research network and commitment to research career, as well as the moderating effect of career aspiration. Our findings reveal a direct positive link between professional research network and commitment to research career. Moreover, research self-efficacy is found to mediate the relationship between professional research network and commitment to research career. We also find that career aspiration did not moderate the relationship between research self-efficacy and commitment to research career. Our study contributes to the literature by providing a more comprehensive understanding of how professional research networks may enhance research self-efficacy, leading to greater commitment to research careers among faculty members in higher education institutions. Additionally, our research sheds light on the important role of career aspiration as a key factor in shaping the relationship between research self-efficacy and commitment to research career.

Many developing countries prioritize sponsoring graduate students to study abroad to bring expertise and knowledge to their home country. However, the success of knowledge transfer depends on the extent to which returning graduates can utilize their potential at home. This study explores challenges faced by Cambodian scholars who obtained their Ph.D. degrees abroad and describes strategies they used to overcome them. In a home country environment with limited funding, over-bureaucratization, and low priority of university research, graduates see the value of their foreign Ph.D. degrees in teaching and consultation. It requires motivation and significant efforts to transition as researchers in such an environment. Returning scholars rely on networks with their peers abroad and supervisors, form local research societies, engage with graduate students at their universities to keep themselves active as researchers.

Solid oxide fuel cells (SOFC) are promising, environmentally friendly energy sources. Many works are devoted to the study of materials, individual aspects of SOFC operation, and the development of devices based on them. However, there is no work covering the entire spectrum of SOFC concepts and designs. In the present review, an attempt is made to collect and structure all types of SOFC that exist today. Structural features of each type of SOFC have been described, and their advantages and disadvantages have been identified. A comparison of the designs showed that among the well-studied dual-chamber SOFC with oxygen-ion conducting electrolyte, the anode-supported design is the most suitable for operation at temperatures below 800 °C. Other SOFC types that are promising for low-temperature operation are SOFC with proton-conducting electrolyte and electrolyte-free fuel cells. However, these recently developed technologies are still far from commercialization and require further research and development.

This review presents thermoelectric phenomena in copper chalcogenides substituted with sodium and lithium alkali metals. The results for other modern thermoelectric materials are presented for comparison. The results of the study of the crystal structure and phase transitions in the ternary systems Na-Cu-S and Li-Cu-S are presented. The main synthesis methods of nanocrystalline copper chalcogenides and its alloys are presented, as well as electrical, thermodynamic, thermal, and thermoelectric properties and practical application. The features of mixed electron–ionic conductors are discussed. In particular, in semiconductor superionic copper chalcogenides, the presence of a “liquid-like phase” inside a “solid” lattice interferes with the normal propagation of phonons; therefore, superionic copper chalcogenides have low lattice thermal conductivity, and this is a favorable factor for the formation of high thermoelectric efficiency in them.

Understanding Kazakhstan’s plague history is crucial for early warning and effective health disaster management. We used descriptive-analytical methods to analyze spatial data for human cases in natural plague foci in Kazakhstan during 1926–2003. The findings revealed 565 human cases across 82 outbreaks in Almaty (32.22%), Aktobe (1.59%), Atyrau (4.42%), Mangystau (21.24%), and Kyzylorda (40.53%) oblasts. Before antibiotic drugs were introduced in 1947–1948, major plague outbreaks occurred in 1926, 1929, 1945, 1947, and 1948, constituting 80.7% of human transmission. Plague spread through flea bites, camel handling, wild animal contact, aerosol transmissions, and rodent bites. Patients were up to 86 years of age; 49.9% were male and 50.1% female. Pulmonary cases were reported most frequently (72.4%), and person-to-person infection occurred at an incidence rate of 0.29 cases/10,000 population. Risk increased with human expansion into natural plague foci areas. Swift diagnosis and treatment are essential for curbing plague outbreaks in Kazakhstan.

Abstract Hepatocellular carcinoma (HCC) is often detected at advanced stages among patients with hepatitis B virus (HBV), underscoring the urgency for more precise surveillance tests. Here, we compare the clinical performance of the novel - GAAD (gender [biological sex], age, alpha-fetoprotein [AFP], protein-induced by vitamin K absence-II [PIVKA-II]) and GALAD (gender [biological sex], age, AFP, Lens-culinaris AFP [AFP-L3]), PIVKA-II) algorithms to assess the utility of AFP-L3 for distinguishing HCC from benign chronic liver disease (CLD) in Chinese patients with predominantly chronic HBV infection. Eligible adults were enrolled, and biomarkers were measured using Elecsys (Cobas) or µTASWAKO assays. In total, 411 participants provided serum samples (HCC, n = 176 [early-stage, n = 110]; CLD, n = 136; specificity n = 101). HBV was the underlying disease etiology for most participants (HCC, 95%; benign CLD, 72%). For GAAD (Cobas), GALAD (Cobas), and GALAD (µTASWAKO), AUCs were 93.1% (95% CI: 90.0–96.2), 93.2% (90.0–96.3), and 92.7% (88.4–96.9) for early-stage, and 95.6% (93.6–97.6), 95.6% (93.6–97.7), and 95.8% (93.2–98.3) for all-stage HCC, versus CLD, respectively. Interestingly, both GAAD and GALAD algorithms demonstrated comparable diagnostic performance regardless of disease etiology (HBV vs. non-HBV), presence of cirrhosis, geographic region, and within pan-tumor specificity panels (p

Problems of resource support, rational use of the geosystem and optimization of relations between natural complexes create a need for future tourism specialists to acquire geoecological competence. A structural model of the formation of geoecological competence for students in tourism programs in higher educational institutions is presented. The need for geoecological competence was recognised from interviews with employers and the geoecological knowledge of students determined through surveys. The methodology and pedagogical technology of the academic discipline "Geoecology and tourism" have been developed. The effectiveness of the structural and functional model for the formation of geoecological competencies is presented. The professional competencies of the academic discipline "Geoecology and tourism" are gradually formed in three stages. Geoecological competence gradually improves knowledge and skills, thereby increasing the level of quality of training. The model of geoecological competence of tourism students makes it possible to see, feel and understand, as well as orient the sphere of values and worldview associated with geoecology.

World University Rankings (WUR) are growing in prominence in the eyes of governments and universities around the world. Often this encourages the introduction of state- or institution-wide policies and regulations that put academics and graduate students under performative pressure to publish in international, peer-reviewed journals with a high impact factor (e.g., Scopus- or Web of Science-indexed journals). Such publication requirements are part of the broader internationalization of research (IoR) policies being implemented in many countries. This article adopts a faculty-based perspective and explores the response of academia to IoR policies in Kazakhstan, a developing country that actively pursues a strategy of integrating local academia into the global scientific community. The authors develop a typology of responses based on a literature review to guide the data collection and interpretation. Data for this study were collected through document analysis and semi-structured interviews. Findings suggest that IoR policies lead to a variety of responses from academia, including gaming and token conformity.

The purpose of this research is to determine the ability of future teachers to organise educational activities on the basis of pedagogical tasks. This research was designed in accordance with the quantitative research method. The study group of the research consists of 448 teacher candidates studying in education faculties of various universities in Kazakhstan in the 2021-2022 academic year. As the data collection tool of the research, the scale of the ability to organise educational activities on the basis of pedagogical tasks was developed by the researchers. As a result of the research, it has been determined that preservice teachers' ability to organise educational activities on the basis of pedagogical tasks has a medium level of proficiency in the fields of pedagogical content knowledge and organising educational activities. It is seen that there is no significant difference regarding the ability of the teacher candidates participating in the research to organise educational activities on the basis of pedagogical tasks according to the variables of gender and the department they study in. However, it is seen that there is a significant difference regarding the ability of the teacher candidates participating in the research to organise educational activities on the basis of pedagogical tasks according to the class variable. The significant difference determined that it is in favour of pre-service teachers studying in the third and fourth year. In line with the results of the research, it has become necessary to increase the course content in teacher training programmes in order to improve the formation of teacher candidates' ability to organise educational activities on the basis of pedagogical tasks.

The education system should be designed to help in the preparation of individuals for life in the 21st Century. The purpose of this study is to use the Lesson Study approach in studying the geography of the updated content, to improve the professional competencies of teachers based on the results of students' perception levels. The research methods used included observation, experiment, interview, statistical analysis, comparison, and synthesis. The results exhibited that the Lesson Study approach can be used in improving the professional competencies of teachers and increasing the quality of teaching. The main provisions and conclusions obtained in the scientific article can be used to improve teachers' pedagogical skills in the context of the updated education content.

The aim of this study is to determine the important and methodological aspect of examining the population migration patterns of distance education and university students' geography course. 420 university students who continue their education in Kazakhstan participated in the research in the spring term of 2020-2021. Scanning method was used in the research. In the research, a measurement tool called the general opinion measurement tool for the geography lesson, which was developed by the researchers and collected by taking expert opinion in the field of geography, was used. In the research, a 4-week online seminar was organized to increase the views of university students about the geography lesson, and training was given over Microsoft Teams, the interview form was collected with electronic forms after the seminar. The collected data were analyzed using spss program. According to the results of the study, it was concluded that university students' inclination to geography course is higher than male students, university students are familiar with the system for 1-3 years, their inclination to distance education systems is high and population migration patterns are learned well with this system.

The state of health and psychological well-being of all citizens, is a determining condition for the development of the Republic of Kazakhstan. The purpose of this study was to theoretically substantiate and identify the role and place of the alienation of children from school in the issue of ensuring the psychological safety of schoolchildren. The researchers set out the content and results of an experimental study, which was aimed at identifying the real state of learning motivation, the manifestation of alienation symptoms in children, the state of their emotional resource deficiency in elementary school children. The authors present the results of a study conducted with 1st-2nd-grade pupils, as well as parents and teachers of elementary schools in the southern region of Kazakhstan in the aspect of the sought problem. The results showed that the developmental histories of children with signs of alienation, are characteristics that demonstrate a deficit of a conflict resource in the early stages of development.