Level Of Training Research Articles

3D Soft Architectures for Stretchable Thermoelectric Wearables with Electrical Self-Healing and Damage Tolerance.

Flexible thermoelectric devices (TEDs) exhibit adaptability to curved surfaces, holding significant potential for small-scale power generation and thermal management. However, they often compromise stretchability, energy conversion, or robustness, thus limiting their applications. Here, the implementation of 3D soft architectures, multifunctional composites, self-healing liquid metal conductors, and rigid semiconductors is introduced to overcome these challenges. These TEDs are extremely stretchable, functioning at strain levels as high as 230%. Their unique design, verified through multiphysics simulations, results in a considerably high power density of 115.4µWcm⁻2 at a low-temperature gradient of 10°C. This is achieved through 3D printing multifunctional elastomers and examining the effects of three distinct thermal insulation infill ratios (0%, 12%, and 100%) on thermoelectric energy conversion and structural integrity. The engineered structure is lighter and effectively maintains the temperature gradient across the thermoelectric semiconductors, thereby resulting in higher output voltage and improved heating and cooling performance. Furthermore, these thermoelectric generators show remarkable damage tolerance, remaining fully functional even after multiple punctures and 2000 stretching cycles at 50% strain. When integrated with a 3D-printed heatsink, they can power wearable sensors, charge batteries, and illuminate LEDs by scavenging body heat at room temperature, demonstrating their application as self-sustainable electronics.

End-to-End Technologies in Medicine, Pharmacy and Biology

The article raises the topical issue of the use of end-to-end technologies for medicine, pharmacy, and biology. The analysis of the use of new technologies in these areas is carried out at the present time. The authors are looking for ways to solve the problem of teaching humanities and natural sciences at a medical university using the capabilities of modern technologies. A random sampling method using the capabilities of Goole forms was used to conduct a survey of 2nd year students of the medical university and teachers working with them. The level of training, the needs of students for new knowledge on modern end-to-end technologies, and the possibilities of implementing training programs are discussed. The survey showed that despite the widespread introduction of end-to-end technologies, the knowledge of students and teachers in this area is extremely limited. Students have a need to acquire new knowledge that can be applied in their future profession. Several solutions to the problem of teaching student’s new technologies and their practical application in medicine, pharmacy, and biology are proposed. The survey also showed that there are two possible options: 1) the introduction of a separate optional course into the curriculum; 2) teachers can talk about the possibilities of new technologies and their use during the study of the discipline. For effective teaching, teachers must improve their skills in a timely manner by taking courses. With an integrated approach, a quick and effective solution to the task is possible.

Multi-stage experiments in Bronze Age spear combat: insights on wear formation, trauma, and combat contexts

This paper presents and discusses an experimental investigation of Bronze Age spear combat, with a focus on the impacts of bronze points against each other and other materials such as wooden shafts and shields, and animal tissues which act as a proxy for the human body.A replicable methodology comprising of a series of interconnected experiments gradually shifting the ratio between control and actualism is presented. The results offer fresh insights into prehistoric combat dynamics and the relationship between combat style, contact material, and the formation of wear traces. A comprehensive account of the morphology and formation dynamics of the damage inflicted on weapons, skin, and bone is provided, supported by detailed photographic documentation.The experimental design permitted to assess the frequency and type of collisions that would occur in actual spear combat. Furthermore, the development and modification of wear traces over time was also observed for the first time on spear points. The tests provided further insights into the level of training and skill required to execute specific movements with different combat objectives. Potential indicators for spear use in various combat contexts, such as fighting against multiple opponents versus more controlled encounters like duels, have been identified. The wear traces produced experimentally find convincing comparisons in the archaeological record.In conclusion, the results contribute to a more detailed understanding of Bronze Age armed encounters and provide robust guidance for interpreting combat marks on archaeological copper alloy weapons and on bones.

Knowledge of epilepsy surgery: A survey among medical doctors in Nigeria

BackgroundEpilepsy surgery has been shown to significantly improve the quality of life of patients with drug resistant epilepsy. Despite this, epilepsy surgery remains remarkably underutilized in Nigeria. There are high misconceptions about epilepsy and its management among physicians and trainees. MethodsThis study aims to identify knowledge gaps in epilepsy surgery among medical doctors in Nigeria and factors associated with their level of knowledge of the procedure. A cross-sectional study was carried out among 566 medical doctors in Nigeria, at different levels of post-graduate training (House officers, Medical officers, Resident doctors and Consultants). An online survey with a 24-item questionnaire adapted from a standardized pro forma was utilized. Binary and multiple logistic regression were used to identify associations between the independent variable and outcome variable (good or poor knowledge) ResultsMajority of the respondents were medical officers (post-intern physicians) comprising 65.7 % of the participants. Significant predictors of poor knowledge included being a medical officer [P=0.006], working in north-central [P=0.017] and north-western Nigeria [P=0.045], seeing less than 20 epilepsy patients per month [1–10 patients, P=0.015; 11–20 patients, P=0.011], and enrolment in online epilepsy course [P=0.004]. ConclusionComprehensive education and awareness about epilepsy surgery are important in overcoming the knowledge gap and improving access to care.

Metagenomic characterisation of canine skin reveals a core healthy skin microbiome

Furthering our knowledge of the skin microbiome is essential to understand health and disease in canines. To date, studies into the canine skin microbiome have focused on 16S rRNA high throughput sequencing however, these lack the granularity of species and strain level taxonomic characterisation and their associated functions. The aim of this study was to provide a comprehensive assessment of the skin microbiome by analysing the skin microbiome of 72 healthy adult colony dogs, across four distinct skin sites and four breeds, using metagenomic sequencing. Our analysis revealed that breed and skin site are drivers of variation, and a core group of taxa and genes are present within the skin microbiome of healthy dogs, comprising 230 taxa and 1219 gene families. We identified 15 species within the core microbiome that are represented by more than one strain. The biosynthesis of secondary metabolites pathway was enriched in the core microbiome suggesting the skin microbiome may play a role in colonisation resistance and protection from invading pathogens. Additionally, we uncovered the novelty of the canine skin microbiome and show that further investigation is required to increase the suitability of current databases for metagenomic sequencing of canine skin samples.

High strain-rate strength response of single crystal tantalum through in-situ hole closure imaging experiments

The properties of crystalline materials often depend on directionality and operating conditions. Specifically, the strength of materials can depend anisotropically on crystal direction and the loading condition. To probe these effects, a preliminary series of high strain-rate (>105/s) strength plate-impact hole closure experiments were performed on high purity single crystal tantalum cubes. The orientation of the single crystals with respect to impact/loading were varied to provide data to inform crystal plasticity modeling efforts. The experiments consist of in-situ high-resolution X-ray radiographic imaging of the hole collapse under dynamic compression conditions to infer the material strength via its resistance to closure at increasing levels of plastic strain. The experiments are compared against hydrocode simulation predictions. A comparison with simple elastic perfectly plastic strength model predictions is presented to elucidate the response of the different crystal orientations at high strain-rate and large plastic strains.

Exploring the relationship between low energy availability, depression and eating disorders in female athletes: a cross-sectional study

ObjectiveThis cross-sectional study aimed to investigate the role of low energy availability (LEA) in the interplay between depression and disordered eating/eating disorders (DE/EDs) among female athletes. The International Olympic Committee...

Development of Extemporaneous Compounding as an Initiating Factor in the Transformation of Pharmaceutical Education: International Experience and Current Trends

INTRODUCTION. Currently, stakeholders across the Russian medical and pharmaceutical community are focusing on the restoration of national pharmaceutical compounding. The Russian pharmaceutical compounding market, with its great potential for growth, requires highly qualified professionals able to ensure the operation of compounding pharmacies and the proper quality of extemporaneous medicinal products. The effectiveness of training for such specialists can be improved by analysing the experience of educational institutions in countries with developed pharmaceutical compounding systems.AIM. This study aimed to analyse the distinguishing features of training for pharmaceutical compounding specialists, as well as determine the main trends in pharmaceutical compounding education in leading international academic institutions.MATERIALS AND METHODS. The study used methods of logical, comparative, structural, and content analysis. The analysis covered 106 pharmacy and pharmacology curricula of the top-25 higher education providers from the QS World University Rankings by Quacquarelli Symonds. The curricula were analysed using open data published online, particularly, on the official websites of the selected universities.RESULTS. The article presents the distinguishing features of pharmaceutical compounding education at different academic qualification levels; these features include the requirements for applicants, time to degree, competence standards, structure of exams, and specifics of students’ professional engagement, with consideration of the national context. The key trends in the education of specialists in pharmaceutical compounding include a decrease in training time for mid-level specialists; a tendency towards concentrating on clinical disciplines due to the expansion of the roles of pharmacy professionals; a growing focus on specialisation in the areas of paediatric, dental, sterile, veterinary, radiopharmaceutical, and orphan drug compounding; increasing use of simulated practice experiences and online learning technologies; and the development of continuing professional education systems.CONCLUSIONS. Pharmaceutical education programmes of leading international educational organisations include disciplines related to extemporaneous compounding. Current international trends—pharmaceutical education with further specialisation in extemporaneous compounding, integration of simulation technologies and online learning into the educational process, and development of continuing professional education—coincide with the development directions of pharmaceutical education in the Russian Federation. Whereas international pharmacy specialists complete additional professional education programmes to gain an additional specialisation in the extemporaneous preparation of paediatric medicinal products, sterile dosage forms, chemotherapy products, radiopharmaceuticals, veterinary products, and dental products, Russian specialists can acquire these additional competencies through further education programmes at the levels of advanced training and residency.

Efek Pelatihan Sumber Daya Insani terhadap Kinerja Karyawan Dompet Sejuta Harapan

Human resources greatly determine the process of successful performance of an organization. Human resource development aims to make it easier to realize organizational goals because quality human resources are capable of carrying out their duties and functions as employees. The importance of human resource training and development within an institution or company is that it is hoped that the employees involved will be able to do their work or have the capability according to competency requirements. So it is necessary to know how human resource training is provided, its performance results, and how strong the influence is on Dompet Sejuta Harapan (DSH) Institute employees. determine the level of human resource training provided, performance results, and how strong the influence is on employees of DSH institutions using quantitative research methods based on concrete data measured using statistics as a calculation test tool. The results of providing training are in the Good category, the Means value is 23.375 in the interval 24-27. The performance results are in the Good category, it is known that the value of 0.621 is between 0.61-0.80, and it is concluded that it has a strong correlation. From the calculation of the r xy correlation, r is 0.870. r table 0.349. Then we get r results from r tables, meaning the hypothesis set can be accepted as true. Based on the results of the data analysis, it can be concluded that the hypothesis that "There is/is a positive influence between human resource training and the performance results of DSH employees" can be accepted as true

استخدام تكنولوجيا المعلومات في دعم الأداء الاستراتيجي لمؤسسات القطاع الحكومي

Government institutions seek to find ways to adapt to modern changes in the work environment and keep pace with continuous developments by applying new methods and technologies. This study aims to demonstrate the relationship between effective information technology and supporting strategic performance in the Transport Authority in the Arab Republic of Egypt. The study used the descriptive analytical approach, and a questionnaire was designed and applied to a study sample of 179 individuals from different administrative levels in the Authority. The study reached several results, the most important of which is the need to pay attention to information technology and improve the level of training of workers in this field to support and raise the quality of the Authority's strategic performance.

Formation process, microstructure characterization, and evolution mechanism of adiabatic shear bands in U-5.7Nb alloy under dynamic deformation

Uranium-niobium (U-Nb) alloys as structural materials play an important role in nuclear industry. During their utilizing, U-Nb alloys tend to dynamically fracture along the adiabatic shear bands, which affects their performances. In order to understand the formation process and mechanisms, we systematically investigate the adiabatic shear bands formed in U-5.7Nb alloys, where systematical characterization methods were applied, such as optical microscope, scanning electron microscope, and high-resolution transmission electron microscope. Using stopper rings, the U-5.7Nb alloy was impacted by a split Hopkinson pressure bar at a strain rate of 8 000 s-1 to perform seven strain levels. The formation process of adiabatic shear bands in U-5.7Nb alloys was characterized, and we found two types of adiabatic shear bands: the deformed ones together with the transformed ones. They are formed at different stage of severe shear localization. The deformed adiabatic shear bands mainly included highly deformed and elongated grains, and the transformed adiabatic shear bands were basically composed of ultrafine equiaxed grains with size of about 150 nm. High density of dislocations or dislocation cells were found in these ultrafine equiaxed grains. The occurrence of ultrafine equiaxed grains in the adiabatic shear bands of U-5.7Nb alloys was deduced to be rotational dynamic recrystallization mechanism.

Situational Awareness and Safety: Using Weather Information to Inform Decision-Making in Antarctic Environments

Abstract To avoid hazards, manage risks, and successfully conduct their outdoor activities, people in Antarctica make weather-related decisions every day. Research on Antarctic weather information use and related decision-making, services, and user needs is limited. In a mixed-methods study, we explored how people use weather information to manage activities and weather in Antarctic regions. Survey (n = 62) and interview (n = 35) participants were deployed with National Antarctic Programs and tourism operators across a range of roles, activities, and locations. How and when weather information was used depended on people’s decision contexts, location, activities, previous experience and knowledge. Experienced participants used weather information, their experience, and local knowledge to form and maintain their situation awareness. Situation awareness influenced participant's decision-making, risk assessment, and planning processes and enabled people's adaptation to changing circumstances, hazards, and weather conditions. As a part of these processes, forecasts were used primarily for pre-activity planning and scheduling decisions. Tasks were prioritized and planned based on suitable weather conditions, experience, and safety. During activities, real-time weather data, personal observations, and experience were important for updating situation awareness, risk judgments, decision-making, and maintaining safety. Levels of weather service provision and training varied and were often not fit-for-purpose, which may adversely impact people's safety in Antarctic regions. Results contribute to our understanding of polar weather user needs, and how we may support people to develop the experience, knowledge, and non-technical skills necessary for identifying and avoiding hazards and safe, efficient, and successful outdoor activities.

Engineering characteristics, techno-economic feasibility and life cycle assessment of bio-fiber based green engineered cementitious composites

The objective of the present work is to understand the microstructural, and life cycle analysis of novel engineered cementitious composites (ECC) where the conventional synthetic micro-fibers are replaced using bio-based fibers. A detailed mechanical and microstructural characteristics of the developed ECC mix are presented first to understand the feasibility of introducing natural fibers without compromising the ductility and strength of the mix. To prove the cost-effectiveness and sustainable balance, a detailed life cycle analysis (LCA) was performed using different sustainability indices such as cost, embodied energy, and carbon emissions. The natural fiber ECC mixes developed in this work are compared with similar artificial fiber ECC mixes for different LCA parameters. Results from the tensile tests revealed that using natural fibers in an ECC mix aided in achieving significant tensile strength (4.3–10.2 MPa) and failure strain levels (2.5 %–3.5 %). Specifically, using flax fibers in the ECC mix aided in achieving a high tensile strength of 10.2 MPa corresponding to an ultimate strain of 2.5 %. From the outcomes of LCA, the use of kenaf and pineapple can be recommended for sustainable ECC production without compromising its mechanical characteristics.

Unveiling the composite rejuvenator efficacy on performance improvement of asphalt binder including high RAP contents

Since the incompatibility between crumb rubber (CR) and reclaimed asphalt binder (RAB) can cause sedimentation and limit its application, this study employed waste cooking oil (WCO) to pre-treat CR particles at different CR/WCO ratios, and assessed its impact on performance of asphalt binders including 30 % and 50 % RABs. Anti-aging and rejuvenation potentials of corresponding composite rejuvenators in binder blends were explored by Fourier transform infrared spectroscopy (FTIR) and gel permeation chromatography (GPC) tests, while the performance of corresponding binder blends was evaluated by bending beam rheometer (BBR), linear amplitude sweep (LAS), and multiple stress creep recovery (MSCR) tests. Furthermore, correlation analyses were performed to explore the relationships between the chemical and rheological parameters with a significance level below 0.05. The results confirmed the rejuvenation efficacy of composite rejuvenators in high RAB, and improvement in the critical low temperature of binder blends to a higher performance grade (PG) level compared to the non-treated CR modified binder. In addition, the fatigue cracking resistance was improved at the strain levels higher than 4 % in LAS test. However, the pre-swelled CR fairly compromised the rutting performance of binder blends compared to non-treated CR, its performance was still better than virgin binder. The correlation analysis suggested that it is possible to use chemical parameters as indicators for evaluating certain rheological properties.

Rapid species differentiation and typing of Acinetobacter baumannii

Acinetobacter (A.) baumannii has emerged as a difficult-to-treat nosocomial bacterial human pathogen. A. baumannii is to be dealt with under the “One Health” approach, and its surveillance in human, animal, and environmental settings assumes paramount importance in understanding its plausible transmission dynamics. Accurate identification of A. baumannii, its clonal complexes, and sequence types is important for understanding the epidemiological distribution, evolutionary relationships, and transmission dynamics. A wide range of genotyping techniques are applied for the differentiation of the Acinetobacter calcoaceticus-baumannii (ACB) complex. However, there is no single straight-forward genotype method applied for rapid assays. Currently, two multilocus sequence typing (MLST) Oxford and Pasture schemes exist; though considered a gold standard for sequence typing, harmonizing the schemes is not a straightforward process. The whole genome sequencing-based core-genome multilocus sequence typing (cgMLST) and core single nucleotide polymorphism (cgSNP) are robust and precise sequence typing; however, they are expensive, depending on the quality of sequencing and demand a higher level of computational skills. In the past decade, matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) based species identification has been successfully employed for rapid discrimination of the ACB complex. MALDI typing is rapid, easier, cheaper, and as reliable as molecular methods. Strain level A. baumannii identification confidence improved upon augmentation of existing databases with in-house reference spectra of well-defined isolates. The application of artificial intelligence and machine learning might be useful in clonal sequence types (ST)-level identification. The genus Acinetobacter’s taxonomic classification is evolving, and newer STs are being described; hence, the establishment of a central repository of A. baumannii reference spectra will help in harmonizing across the laboratories and help in the global level surveillance program on A. baumannii in “One Health” perspective. This review sheds light on the challenges related to techniques employed for the identification of Acinetobacter and the potential application and future perspectives of MALDI-TOF MS.

Response-specificity or response-generality of inhibition in an operant feature-negative discrimination: Influence of the amount of inhibition training and attention to the response

The suppression of behavior that occurs in instrumental extinction is strikingly specific to the response. In contrast, Steinfeld and Bouton (2022) recently reported that inhibition developing in an operant feature-negative (FN) discrimination is not specific to the response. In two experiments, we tested two potential explanations of why inhibition in FN learning is relatively response-general. In each, we used Steinfeld and Bouton’s method and concurrently trained two FN discriminations with different operant responses (AR1+/ABR1- and CR2+/CDR2-). We then assessed the extent to which the inhibitory cues (B and D) suppressed the response they were trained with (same-response inhibition) and the alternative response (cross-response inhibition). Experiment 1 tested the idea that FN inhibition might be response-general because it can create strong inhibition. Rats received either 3, 6, or 12 sessions of FN discrimination training (Steinfeld and Bouton’s rats had received 12). Inhibition was response-general at every level of training. In Experiment 2, the inhibitors (B and D) were first trained as cues that set the occasion for R1 and R2 (respectively) before they were turned into inhibitors in the FN discriminations. In the end, there was less cross-response inhibition, and thus more response-specificity. We suggest that inhibition in FN learning may be response-general because the unambiguous inhibitory cue (B or D) can attract attention and interfere with learning about the response.

Teaching mathematics in college: The need for a set of professionally oriented tasks

The purpose of the study is to solve this problem, which consists of substantiating, developing, and implementing a methodological system for preparing students for professionally oriented mathematics education in college. Professionally oriented mathematics education in colleges is advisable, as it helps students see the practical benefits and importance of mathematics in their future professional activities. This approach allows us to better prepare students for their future professions. Research problem: what are the leading directions, principles, content, and forms of methodological preparation of students for professionally oriented mathematics education in college? In achieving this goal, we distinguish a complex of professionally oriented tasks in the fact that they reflect specific scenarios and difficulties that specialists face in their professional activities, and this allows students to gain experience in specific tasks from their field. Research methods: interviewing and testing students, teachers; observation, study, and generalization of pedagogical experience; development of an author's methodology for preparing students for professionally oriented mathematics education in college. We identified criteria to verify the effectiveness of the training methodology, assessing the students’ assimilation of subject knowledge and their increased motivation for learning. The results of the pedagogical experiment show that the process of teaching mathematics in a college with a professionally oriented methodological learning system, implemented through the use of a set of professionally oriented tasks, contributes to an increase in the level of mathematical training and educational motivation of students.

Structure of the step-by-step sequential program for future officers of military education institutions to engage in the military applied seventh school

High motivation, sufficient level of professional knowledge, excellent physical and functional condition of the main body systems of servicemen are an integral part of the combat readiness and combat capability of the personnel of the units of the Armed Forces of Ukraine. At many stages of the conduct of hostilities during the full-scale invasion of the Russian Federation against Ukraine, the availability of the latest weapons and equipment, as well as the training of personnel to perform assigned tasks, the high level of training of units and units of the Armed Forces of Ukraine, are definitely essential components. The analysis carried out by specialists in physical training and sports (service branches) of the Armed Forces of Ukraine indicates the need for constant improvement and development of military applied (special) physical skills of servicemen. Specialists insist on the need to introduce in the training of military personnel the skills of overcoming obstacles, moving on the battlefield, throwing grenades, firing from small arms from different positions, swimming in uniform and with weapons. The reform of the Armed Forces of Ukraine, the training of future officers in military education institutions today makes it possible to abandon outdated approaches and methods of personnel training, and there are opportunities to introduce more effective methods into the military education system. More effective and innovative methods of training future officers of military educational institutions are organized for servicemen of the Armed Forces of NATO partner countries.

Methodological aspects of training systems of junior taekwondist

The article analyzes the basis of achievements in the field of promotion of theoretical and methodological bases of sports training on the basis of taekwondo; it is necessary to organize these methodical exercises before the training of taekwondo; the necessity of the processes of natural development and adaptation to the physical advantages of young taekwondo players; the necessity of scientific equipment for the stimulus of training advantages in the minds of emotional states is shown. The specific features of the preparation of taekwondo fighters with the consideration of morphofunctional and psychophysiological features of athletes in the initial-training process are revealed. The most important aspects of taekwondo training or contribute to the optimization of the level of training of athletes are identified. Among the various directly the field of psychophysiology of sports is one of the most promising fields for the search for new approaches to the preparation of highly qualified athletes. The same observation of psychophysiological characteristics gives additional information about the functional state of the athlete for different minds of activity. One of the key nutrients is the prediction of potentially high results in a particular sport on the basis of a comprehensive study of mental and mental strengths and anatomical and physiological tasks. The methodology of SAN can be used to monitor the dynamic emotional state of the athlete, reflected in the indicators of self-esteem, activity and mood during the training period. The results of the psychological test revealed the dependence of the indicators of self-esteem, activity and mood on the indicators of physical activity. The effectiveness and efficiency in taekwondo is determined by the demonstration of high agility, the unprecedented strength of the attackers and defenders, the strength of the tactical and emotional fight. Considering that the effectiveness of taekwondo activities depends on the athlete's ability to jump, we analyze the information that is important to understand the psychophysical functions of the control of the athlete's physical position. this correction of the training process.

On the Mechanical Behavior of LP-DED C103 Thin-Wall Structures

Laser Powder Directed Energy Deposition (LP-DED) can produce thin-wall features on the order of 1 mm. These features are essential for large structures operating in extreme environments such as regeneratively cooled nozzles and heat exchangers, which often make use of refractory metals. In this work, the mechanical behavior of LP-DED C103 was investigated via quasi-static tensile testing and low cycle fatigue (LCF) testing. The effects of vacuum stress relief (SR) and hot isostatic pressing (HIP) heat treatments were investigated for specimens in the vertical and horizontal build orientations during tensile testing. The AB and SR properties were lower than literature values for wrought and laser powder bed fusion (L-PBF) bulk components but higher than electron beam powder bed fusion (EB-PBF). The application of a HIP cycle improved strength by 7% and ductility by 27% past the initial as-built condition. Fracture images reveal that interlayer stress concentration sites are responsible for fracture in specimens in the vertical orientation. Meanwhile, fracture in the horizontal specimens mainly propagates at a slanted angle typical of plane stress conditions. The LCF results show cycles to failure ranging from 100 cycles to 8000 cycles for max strain levels of 2% and 0.5%, respectively. Fractography on the fatigue specimens reveals an increasing propagation zone as max strain levels are increased. The impact of these findings and future work are discussed in detail.