Empirical Data Research Articles

A comprehensive numerical procedure for high-intensity focused ultrasound ablation of breast tumour on an anatomically realistic breast phantom.

High-Intensity Focused Ultrasound (HIFU) as a promising and impactful modality for breast tumor ablation, entails the precise focalization of high-intensity ultrasonic waves onto the tumor site, culminating in the generation of extreme heat, thus ablation of malignant tissues. In this paper, a comprehensive three-dimensional (3D) Finite Element Method (FEM)-based numerical procedure is introduced, which provides exceptional capacity for simulating the intricate multiphysics phenomena associated with HIFU. Furthermore, the application of numerical procedures to an anatomically realistic breast phantom (ARBP) has not been explored before. The integrity of the present numerical procedure has been established through rigorous validation, incorporating comparative assessments with previous two-dimensional (2D) simulations and empirical data. For ARBP ablation, the administration of a 0.1 MPa pressure input pulse at a frequency of 1.5 MHz, sustained at the focal point for 10 seconds, manifests an ensuing temperature elevation to 80°C. It is noteworthy that, in contrast, the prior 2D simulation using a 2D phantom geometry reached just 72°C temperature under the identical treatment regimen, underscoring the insufficiency of 2D models, ascribed to their inherent limitations in spatially representing acoustic energy, which compromises their overall effectiveness. To underscore the versatility of this numerical platform, a simulation of a more clinically relevant HIFU therapy procedure has been conducted. This scenario involves the repositioning of the ultrasound focal point to three separate lesions, each spaced at 3 mm intervals, with ultrasound exposure durations of 6 seconds each and a 5-second interval for movement between focal points. This approach resulted in a more uniform high-temperature distribution at different areas of the tumour, leading to the ablation of almost all parts of the tumour, including its verges. In the end, the effects of different abnormal tissue shapes are investigated briefly as well. For solid mass tumors, 67.67% was successfully ablated with one lesion, while rim-enhancing tumors showed only 34.48% ablation and non-mass enhancement tumors exhibited 20.32% ablation, underscoring the need for multiple lesions and tailored treatment plans for more complex cases.

Constructing Ubudehe? Farmers’ perceptions of drought impacts and resilience capacities in Bugesera, Rwanda

Purpose This paper analyses Rwandan farmers’ perceptions of historical drivers of landscape vulnerability (past), current livelihood assets (present) and existing or potential capacities (future) to increase resilience to drought. The specific focus is on linking experiences from the past and present with ideas for a drought-resilient future. It explores how farmers' perceptions of past droughts and future visioning can contribute to rural development policy and multi-level collaborations. Design/methodology/approach This study was conducted in Bugesera, a drought-prone district in south-eastern Rwanda. Empirical data was collected through participatory observation, semi-structured interviews and focus groups. The analytical points of departure are based on sustainable landscapes and livelihood approaches, combining spatial and temporal perspectives on challenges and opportunities identified by farmers’ communities in addressing droughts. Findings All respondents had a high awareness of the impact of droughts. Perceived drivers of landscape change include historical climate events, such as droughts and floods, immigration and agricultural expansion, which have led to demographic pressure on land, deforestation and infringement on natural resources. Factors enhancing resilience capacities include access to diversified sources of livelihood, knowledge of appropriate irrigation techniques and availability of safety nets and credits. Furthermore, farmers identified collaborative opportunities as important for resilience capacity, including peer learning, and sharing best practices through knowledge exchange and on-field training. In addition, farmers brought up the need for innovative institutions that can facilitate access to markets and enable collaboration between different agricultural sectors. Originality/value This study analyses farmers’ perceptions of resilience capacities to droughts through a spatiotemporal lens of past droughts, present capital and future challenges by linking scales, knowledge and human–environment nexus. This paper contributes to the knowledge of climate adaptation in Rwanda and to discussions about smallholder farming in the literature on climate change adaptation.

Modeling the Effects of Increased Hurricane Frequency on the Tropical Forest Carbon Cycle

AbstractModels project that climate change is increasing the frequency of severe storm events such as hurricanes. Hurricanes are an important driver of ecosystem structure and function in tropical coastal and island regions and thus impact tropical forest carbon (C) cycling. We used the DayCent model to explore the effects of increased hurricane frequency on humid tropical forest C stocks and fluxes at decadal and centennial timescales. The model was parameterized with empirical data from the Luquillo Experimental Forest (LEF), Puerto Rico. The DayCent model replicated the well-documented cyclical pattern of forest biomass fluctuations in hurricane-impacted forests such as the LEF. At the historical hurricane frequency (60 years), the dynamic steady state mean forest biomass was 80.9 ± 0.8 Mg C/ha during the 500-year study period. Increasing hurricane frequency to 30 and 10 years did not significantly affect net primary productivity but resulted in a significant decrease in mean forest biomass to 61.1 ± 0.6 and 33.2 ± 0.2 Mg C/ha, respectively (p < 0.001). Hurricane events at all intervals had a positive effect on soil C stocks, although the magnitude and rate of change of soil C varied with hurricane frequency. However, the gain in soil C stocks was insufficient to offset the larger losses from aboveground biomass C over the time period. Heterotrophic respiration increased with hurricane frequency by 1.6 to 4.8%. Overall, we found that an increasing frequency of tropical hurricanes led to a decrease in net ecosystem production by − 0.2 ± 0.08 Mg C/ha/y to − 0.4 ± 0.04 Mg C/ha/y for 30–10-year hurricane intervals, respectively, significantly increasing the C source strength of this forest. These results demonstrate how changes in hurricane frequency can have major implications for the tropical forest C cycle and limit the potential for this ecosystem to serve as a net C sink.

A novel mathematical model for modeling viscosity and temperature relationship for dead oils

Viscosity is crucial in subsurface and surface transport, used in engineering domains like heat transfer and pipeline design. However, measurements are limited, necessitating predictive viscosity relationships. Existing models lack precision or pertain to limited fluids, and accurately forecasting dead oil viscosity remains challenging due to errors. The study presents a mathematical algorithm to accurately estimate viscosity values in hydrocarbon fluids. It uses a robust non-linear regression technique to establish a reliable relationship between fluid viscosity and temperature within a specific temperature range. The algorithm is applied to extra-heavy to light crude oil samples from Iranian oilfields, revealing viscosity values ranging from 0.29 cp to 5328.74 cp within a dataset of 243 viscosity data points. After modeling each of these five fluids, the highest values obtained for the maximum absolute error and relative error are related to the fluid with an API gravity of 12.92. The maximum absolute error and relative error for this fluid sample are 1.25 cp and 6.04%, respectively. The algorithm offers acceptable precision in outcome models, even with limited training data, demonstrating its effectiveness in training models with less than 30% of available data. Moreover, these models end up with a near-unity coefficient of determination in testing data, reaffirming their proficiency at reflecting empirical data with remarkable accuracy.

Proposed Study on the Existing Body of Literature on Innovation Performance in China’s High-Tech SMEs

This study investigates the intricate relationship between top management capability, relational capability, technological capability, learning capability, innovation strategy, and innovation performance within the context of high-technology Small and Medium Enterprises (SMEs) in China. Through a synthesis of the Resource-Based View and Dynamic Capability Theory, this research delves into how these diverse capabilities intersect to shape innovation outcomes in a rapidly evolving market landscape. Drawing upon empirical data collected from a comprehensive sample of high-tech SMEs operating across various industries in China, this study examines how top management capability influences the firm's strategic direction and innovation agenda. Furthermore, the research explores the role of relational capability in fostering collaborative relationships with stakeholders, such as customers, suppliers, and partners, to access valuable resources and knowledge for innovation initiatives. Moreover, the study investigates how technological capability enables firms to harness advanced technologies and expertise to drive innovation, while learning capability facilitates the absorption, assimilation, and application of new knowledge and insights to fuel continuous innovation efforts. Through an analysis of innovation strategies adopted by high-tech SMEs and their alignment with dynamic capabilities, this research elucidates the mechanisms through which firms leverage their diverse capabilities to formulate and execute effective innovation strategies, ultimately impacting innovation performance. The findings contribute to both theoretical understanding and practical implications, providing insights for high-tech SMEs in China on how to develop and leverage dynamic capabilities across multiple dimensions to enhance innovation performance and achieve sustainable competitive advantage in today's dynamic business environment.

Perceptual tri-stability, measured and fitted as emergent from a model for bistable alternations

The human auditory system in attempting to decipher ambiguous sounds appears to resort to perceptual exploration as evidenced by multi-stable perceptual alternations. This phenomenon has been widely investigated via the auditory streaming paradigm, employing ABA_ triplet sequences with much research focused on perceptual bi-stability with the alternate percepts as either a single integrated stream or as two simultaneous distinct streams. We extend this inquiry with experiments and modeling to include tri-stable perception. Here, the segregated percepts may involve a foreground/background distinction. We collected empirical data from participants engaged in a tri-stable auditory task, utilizing this dataset to refine a neural mechanistic model that had successfully reproduced multiple features of auditory bi-stability. Remarkably, the model successfully emulated basic statistical characteristics of tri-stability without substantial modification. This model also allows us to demonstrate a parsimonious approach to account for individual variability by adjusting the parameter of either the noise level or the neural adaptation strength.

Research on the Dynamics of Flame Propagation and Overpressure Evolution in Full-Scale Residential Gas Deflagration

To determine the effect of ignition height on indoor flame spread behavior and overpressure development, a comprehensive full-scale deflagration testing facility was established. Extensive experimental research was conducted within this facility. The findings indicate that indoor flame reignition and the occurrence of secondary explosions are most pronounced with intermediate ignition. Furthermore, the explosion overpressure generated during the reverse turn of shock wave propagation is greater than that produced by the forward turn. In comparison to the peak overpressure Pext in the master bedroom for top, middle, and bottom ignition, the peak overpressure Pext in the second bedroom increased by approximately 14.48%, 15.04%, and 19.20%, respectively. When comparing middle ignition to top ignition, the propagation speed of shock waves in the kitchen balcony, restroom, second bedroom, and master bedroom was enhanced by 34.21%, 40.85%, 40.70%, and 34.65%, respectively. Furthermore, when comparing middle ignition to bottom ignition, the propagation speed of shock waves in these areas experienced a significant increase of 126.32%, 124.39%, 123.26%, and 113.86%, respectively. These research findings provide a theoretical foundation and empirical data to support the investigation and analysis of the causes of indoor gas explosion incidents.

Decoding burst swimming performance: a scaling perspective on time-to-fatigue.

Fatigue curves quantify fish swimming performance, providing information about the time ([Formula: see text]) fish can swim against a steady flow velocity (Uf) before fatiguing. Such curves represent a key tool for many applications in ecological engineering, especially for fish pass design and management. Despite years of research, though, our current ability to model fatigue curves still lacks theoretical foundations and relies primarily on fitting empirical data, as obtained from time-consuming and costly experiments. In the present article, we address this shortcoming by proposing a theoretical analysis that builds upon concepts of fish hydrodynamics to derive scaling laws linking statistical properties of [Formula: see text] to velocities Uf, pertaining to the so-called burst range. Theoretical arguments, in the present study, suggest that the proposed scaling laws may hold true for all fish species and sizes. A new experimental database obtained from over 800 trials and five small-sized Cypriniformes support theoretical predictions satisfactorily and calls for further experiments on more fish species and sizes to confirm their general validity.

Testing for normality: a user's (cautionary) guide.

The normality assumption postulates that empirical data derives from a normal (Gaussian) population. It is a pillar of inferential statistics that enables the theorization of probability functions and the computation of p-values thereof. The breach of this assumption may not impose a formal mathematical constraint on the computation of inferential outputs (e.g., p-values) but may make them inoperable and possibly lead to unethical waste of laboratory animals. Various methods, including statistical tests and qualitative visual examination, can reveal incompatibility with normality and the choice of a procedure should not be trivialized. The following minireview will provide a brief overview of diagrammatical methods and statistical tests commonly employed to evaluate congruence with normality. Special attention will be given to the potential pitfalls associated with their application. Normality is an unachievable ideal that practically never accurately describes natural variables, and detrimental consequences of non-normality may be safeguarded by using large samples. Therefore, the very concept of preliminary normality testing is also, arguably provocatively, questioned.

СУЧАСНІ МЕХАНІЗМИ РОЗВИТКУ ДЕРЖАВНО-ПРИВАТНОГО ПАРТНЕРСТВА У СФЕРІ ПРОФЕСІЙНОЇ (ПРОФЕСІЙНО-ТЕХНІЧНОЇ) ОСВІТИ В ПОВОЄННИЙ ЧАС

The relevance of this article is defined by the need to substantiate the modern mechanisms for the development of public-private partnerships in vocational (vocational and technical) education to attract private investment and innovative technologies into professional training of skilled workers for various sectors of the economy in the post-war period. It will be based on mutually beneficial economic and organisational relations between state authorities, local governments, the private sector and vocational education institutions. The aim is to identify and justify the modern mechanisms for the development of public-private partnerships and to find out the possibilities of their use in improving the quality of vocational (vocational and technical) education in line with the demands of the labour market in the post-war period. Methods: studying of scientific sources, legislative and regulatory documents, empirical data to determine the state of public-private partnerships in the field of vocational (vocational and technical) education; theoretical analysis and synthesis, generalisation of scientific approaches to the problem under study in order to determine the mechanisms for the development of public-private partnerships in vocational (vocational and technical) education and drawing conclusions. Results: there are identified and substantiated the modern mechanisms for the development of public-private partnerships, including forms, means, and tools that are key to ensuring effective interaction between partnership participants to improve the quality of vocational (vocational and technical) education and meet the needs of the labour market in the post-war period. Conclusions: the modern mechanisms for the development of public-private partnerships in vocational (vocational and technical) education, which define the framework for cooperation between the state and the private sector and are implemented to improve the quality of vocational (vocational and technical) education, include: contract, institutional, investment, concession, leasing, franchise and project forms of partnership; means (contract for the provision of educational services, outsourcing, councils for vocational (vocational and technical) education and labour market, educational programmes, direct investment in infrastructure development, joint investment projects, leasing of equipment and technologies, leasing of educational premises; franchise of educational programmes, franchise of educational services, joint educational projects, joint research projects); instruments (service agreement, outsourcing agreement, agreement on the establishment of joint educational institutions, charter of a joint educational institution, concession agreement, agreement on the development and implementation of educational programmes, investment agreement, memorandum of understanding, leasing agreement, maintenance agreement, franchise agreement, educational services agreement, joint project implementation agreement, research cooperation agreement). Their use is key to achieving sustainable development and introducing innovations in vocational (vocational-technical) education.

IMAGINE Research of Transformational Assessment

In the context of studying human beings, at the macro level, assessment is the process of documenting, analyzing, and interpreting empirical data to provide evidence regarding an observable entity concerning humans that emerges cognitively, affectively, physically, metaphysically, and/or spiritually, and which is internal or external to the person or group being observed. In this article, we argue that assessment does not belong exclusively to either the qualitative or quantitative research tradition; rather, it is central to both traditions, as well as to mixed methods research. Moreover, in every research study— whether representing the qualitative, quantitative, or mixed methods research tradition—some form of assessment is used. Further, assessment not only represents a social constructionist and/or a social constructivist act, but also, and even more importantly, it represents a political act. This article features a discussion about the systemic, historically disempowering nature of assessment that privileges an artificial and racist norm, and silences and punishes participants who become othered by traditional research and assessment paradigms.

Impaired motor-to-sensory transformation mediates auditory hallucinations.

Distinguishing reality from hallucinations requires efficient monitoring of agency. It has been hypothesized that a copy of motor signals, termed efference copy (EC) or corollary discharge (CD), suppresses sensory responses to yield a sense of agency; impairment of the inhibitory function leads to hallucinations. However, how can the sole absence of inhibition yield positive symptoms of hallucinations? We hypothesize that selective impairments in functionally distinct signals of CD and EC during motor-to-sensory transformation cause the positive symptoms of hallucinations. In an electroencephalography (EEG) experiment with a delayed articulation paradigm in schizophrenic patients with (AVHs) and without auditory verbal hallucinations (non-AVHs), we found that preparing to speak without knowing the contents (general preparation) did not suppress auditory responses in both patient groups, suggesting the absent of inhibitory function of CD. Whereas, preparing to speak a syllable (specific preparation) enhanced the auditory responses to the prepared syllable in non-AVHs, whereas AVHs showed enhancement in responses to unprepared syllables, opposite to the observations in the normal population, suggesting that the enhancement function of EC is not precise in AVHs. A computational model with a virtual lesion of an inhibitory inter-neuron and disproportional sensitization of auditory cortices fitted the empirical data and further quantified the distinct impairments in motor-to-sensory transformation in AVHs. These results suggest that "broken" CD plus "noisy" EC causes erroneous monitoring of the imprecise generation of internal auditory representation and yields auditory hallucinations. Specific impairments in functional granularity of motor-to-sensory transformation mediate positivity symptoms of agency abnormality in mental disorders.

Juvenile coho salmon growth differences track biennial pink salmon spawning patterns

Abstract Spawning Pacific salmon (Oncorhynchus spp.) provide marine‐derived resources (MDR) to freshwater food webs in the form of eggs, flesh and maggots that consume salmon carcasses, all of which positively impact stream‐dwelling fish growth. Pink salmon (O. gorbuscha) are widely distributed throughout coastal catchments along the North Pacific Ocean and display increased spawning abundances in odd years, owing to a fixed 2‐year life history. While many studies have found that foraging and growth of stream‐dwelling salmonids are improved by increased adult salmon spawning abundance, few studies have investigated the importance of alternating pink salmon spawning abundance between years. Here, we examined how patterns of pink salmon spawning abundance impact the foraging and growth of juvenile coho salmon (O. kisutch). First, we used bioenergetic simulations to generate a hypothesis that coho salmon growth would increase during odd relative to even years. We then collected empirical juvenile coho salmon diet and growth data from a Southeast Alaska catchment in 2021 (pink salmon spawning) and 2022 (no pink salmon spawning). Field data were compared against simulation predictions to understand impacts of biennial pink salmon spawning patterns on juvenile coho salmon growth. Empirical growth data revealed similar patterns to bioenergetic simulations. Age‐1 coho salmon grew 16.6 mm longer and 5.5 g heavier on average in 2021 compared to 2022. Age‐0 coho salmon displayed minor growth differences between years. These results support bioenergetic model predictions and suggest that patterns of pink salmon spawning abundance can impart interannual growth disparities to juvenile coho salmon. Moreover, we show that distinct spawning characteristics of Pacific salmon species are important when understanding patterns of MDR transfer and growth responses in stream fishes.

Ride-hailing technology mitigates effects of driver racial discrimination, but effects of residential segregation persist

We assess racial disparities in the service quality of app-based ride-hailing services, like Uber and Lyft, by simulating their operations in the city of Chicago using empirical data. To generate driver cancellation rate disparities consistent with controlled experiments (up to twice as large for Black riders as for White riders), we estimate that more than 3% of drivers discriminate by race. We find that the capabilities of ride-hailing technology to rapidly rematch after a cancellation and prioritize long-waiting customers heavily mitigates the effects of driver discrimination on rider wait times, reducing average discrimination-induced disparities to less than 1 min-an order of magnitude less than traditional taxis. However, our results suggest that even in the absence of direct driver discrimination, Black riders in Chicago wait about 50% longer, on average, than White riders because of historically informed geographic residential patterns. We estimate that if Black riders in the city had the same wait times as White riders, the collective travel time saved would be worth $4.2 million to $7.0 million per year.

Influence of tenure policies on job satisfaction, motivations, and experiences of language teachers in Macau’s higher education

Despite being controversial, teacher tenure policies are understudied, particularly in higher education contexts outside the Western world. Using semi-structured interviews with 15 university faculty members, this study explored how tenure systems influence the teaching practices, motivations, and job satisfaction of language teachers in Macau's universities. It was revealed that Macau implemented competitive, “up or out” tenure policies that were based on research output. Faculty were anxious as vague expectations heightened research priorities over teaching quality and student support. Requirements also strained collegial relationships as faculty goals focused on promotion. Veteran professors demonstrated resilience, maintaining intrinsic motivation despite policies. They advocated improving policies by promoting transparency, balancing workloads, accommodating disciplines, and communicating effectively. Using empirical data, this study identifies key policy implications for supporting teacher motivation while balancing inequality constraints. It provides empirical insight into optimizing tenure for teacher engagement and fulfillment.

Under- and Hyper-Reading in Joint Security Area and Decision to Leave

This study investigates the ways in which Joint Security Area (2000) and Decision to Leave (2022) each deal with under-reading and hyper-reading, respectively. Under-reading substitutes surface phenomena for the undergirding structure or power, assuming that, under the surface, there is nothing to plumb. Hyper-reading, on the other hand, can be bifurcated into two modes: one is perceptively discerning what lies beyond the empirical data, and the other is erroneously supposing there is an underlying basis to what is seen, which is, in fact, nonexistent. My analysis shows that Park Chan-wook’s signature style of mise-en-scéne creation turns the extraordinary into the ordinary, not vice versa, demonstrating how this distinct mise-en-scene aesthetic circumvents both the error of under-reading and of hyper-reading. This article also examines how Decision to Leave employs and coopts the theatrical devices of lighting and solo asides to stress the staged qualities of given scenes. Whereas Joint Security Area subtly criticizes the under-reading practice, Decision to Leave centers on the ambivalence of hyper-reading. This study argues that Park’s two films probing of the theme of under- and hyper-reading instantiate the cinematic aesthetic of liminality par excellence.

МОДЕЛИРОВАНИЕ ПУСКА ДВС АВТОМОБИЛЯ С БЕССТУПЕНЧАТОЙ КОРОБКОЙ ПЕРЕДАЧ

The aim of the work is to build a computer dynamic model of moving internal combustion engine parts and a continu-ously variable transmission to determine the starting characteristics of the internal combustion engine. The paper objective is to define the characteristics of moving parts of the internal combustion engine and continuously variable transmission when starting the internal combustion engine with an electric starter. The research method is computer modelling of moving internal combustion engine and transmission parts when starting with an electric starter. The novelty of the work lies in building a computer model of moving parts of an internal combustion engine and a contin-uously variable transmission, connected by a torsional vibration damper, considering changes in friction parameters. The results are in developing a computer model to determine the starting characteristics of a four-cylinder in-line four-stroke internal combustion engine with spark ignition and a continuously variable multitronic® 01J transmis-sion. To check the computer model adequacy, the author uses the values of the average friction pressure in accord-ance with GOST R 54120-2010 and empirical data on the unevenness of the angular velocity of the crankshaft. Simu-lating a four-stage start of an internal combustion engine shows that opening the cylinder valves at the 1st stage in-creases the angular velocity of the crankshaft by 4%. Temporary switching on the reverse clutch for 1.4 s reduces the amplitude of angular oscillations of the solar shaft by 2.22 times, eliminates the beating of the contacting gearbox teeth, but slows down the crankshaft speed by 7.6%. After the reverse clutch is turned off, periodic changes in the an-gular velocity of gearbox parts occur.

Manifestation of national identity in the socio-political values of student youth

The problem of national identity is one of the most controversial, not losing scientific and socio-political relevance for many centuries. National identity is based on a system of value guidelines that unites individuals into a single historical, cultural and social community. The formation of national self-awareness occurs in the process of internalization by an individual of the value system of his country. At the same time, the self-perception of belonging to a certain nation is not predetermined by formal citizenship and is not given once and for all; throughout the life of an individual there is the possibility of choice and change of national identity. This choice is inevitable when the country’s value guidelines change. The modern period in Russian history, and indeed the whole world, is a kind of bifurcation point; the values of the globalizing world, the so-called Western values, come into conflict with traditional Russian values. For the preservation of Russian national identity, the choice of young people is of particular importance. The future of the country depends on what value guidelines form the basis of the national self-determination of today's Russian youth. The article presents the results of a study of the relationship between socio-political values and the choice of national identity of Russian students. It is not by chance that students are identified as the object of observation. As the avant-garde, the most educated part of young people with high ambitions and a desire for social independence, students are the most receptive to change. For the analysis, empirical data from a study by the Center for Political Science of the Institute of Socio-Political Research of FCTAS RAS “Students of Russia: civic culture and life strategies” were used. Using the method of factor analysis, based on the results of an empirical study, three basic types of identity were identified: “Russian, person of his city”, “person of the world, the Internet”, “Asian”. It has been proven that the prevailing type of student identity is closely related to his socio-political attitudes and guidelines. The types that differ most in their views are “Russian, person of the city” and “person of the world, the Internet.” The first type is characterized by pronounced positive assessments of Russia's situation on the world stage, optimistic forecasts for the development of both the economy and the development of the country as a whole in 10-15 years. Representatives of this type see the main national idea in the unity of the peoples of Russia in order to revive the country as a great power. Representatives of the “person of the world, Internet” type are characterized by less positive assessments of the present and future of Russia. The main national idea for them is to create a legal and modern democratic state, the path of development is a free market economy. Among the values, such concepts as human rights, freedom and democracy are more significantly represented. But the most important difference between the second type is the pronounced migration sentiment.

Dynamics of the event structure of the life course in Russia

The article presents the results of a comparative analysis of the life-event structure of generations of Russians based on empirical data from the Russian Social Survey (RSS) wave 9, comparable with ESS. The analysis showed that the life calendar of currently living generations of Russians is quite strongly structured - events occur in certain and rather narrow time intervals and in a certain sequence. A feature of the life calendar in Russia is a high concentration of all the basic events of the first phase of adult life in a narrow time interval, a short period of entry into adulthood. Events of the late stage of life show greater chronological diversity and scenario variability. Significant differences in the life-event matrix of generations in Russia were found, including an increase in the average age of onset of almost all basic life events, an expansion of the boundaries of age-related life stages, an extension of the path of growing up and the transition from maturity to old age, as well as diversification of life scenarios in the professional and family-marital spheres. When comparing the indices of standardisation of the main events between generations, a trend towards destandardisation of life paths was revealed: in older generations, the level of similarity is significantly higher than among younger generations. The main changes occurred in the generation of 1970-1979 and accelerated in the next generation of 1980-1989. Macro-demographic factors, as well as changes in socio-economic and historical conditions, the transition to a post-industrial society might be named among possible reasons. The trend towards destandardisation of life paths in older generations primarily affected people with a higher level of education, while in younger generations it acquired a broader social and class character; gender differences began to appear in the generation of the 1980s. The authors suggest that the increase in destandardisation of life paths may have multidirectional social and individual consequences. On the one hand, new opportunities for development, building a life path taking into account individual characteristics, talents and desires, greater flexibility of life trajectories, a decrease in normativity and social pressure. On the other hand, this may lead to increased uncertainty, social tension, increased inequalities, and a deepening conflict between “fathers and children,” which will increase social risks in the foreseeable future.

The Implication of E-Commerce Application in SMEs

This research aims to explore the implication of e-commerce application among Small and Medium (SM) Malay entrepreneurs involved in the Malaysian food and beverage manufacturing industry based on three perspectives: technology, competition, and suppliers. A survey questionnaire was developed following the three variables. Furthermore, a pilot study was conducted to identify the necessary improvements to be made to the instrument. The respondents involved SM Malay entrepreneurs who are e-commerce application users, with a 68.4% response rate. The empirical data were statistically analysed via stepwise multiple regression. Resultantly, the variables of competition and supplier influenced the implication of e-commerce application among SM Malay entrepreneurs.