In air traffic control, the airspace is divided into several smaller sectors for better management of air traffic and air traffic controller workload. Such sectors are usually managed by a team of two air traffic controllers: planning controller and executive controller. D-side controller is responsible for processing flight-plan information to plan and organize the flow of traffic entering the sector. R-side controller deals with ensuring safety of flights in their sector. A better understanding and predictability of D-side controller actions, for (...) a given traffic scenario, may help in automating some of its tasks and hence reduce workload. In this paper, we propose a learning model to predict D-side controller actions. The learning problem is modeled as a supervised learning problem, where the target variables are D-side controller actions and the explanatory variables are the aircraft 4D trajectory features. The model is trained on six months of ADS-B data over an en-route sector, and its generalization performance was assessed, using crossvalidation, on the same sector. Results indicate that the model for vertical maneuver actions provides highest prediction accuracy. Besides, the model for speed change and course change action provides predictability accuracy of 80% and 87%, respectively. The model to predict the set of all the actions for each flight achieves an accuracy of 70% implying for 70% of flights; D-side controller’s action can be predicted from trajectory information at sector entry position. In terms of operational validation, the proposed approach is envisioned as ATCO assisting tool, not an autonomous tool. Thus, there is always ATCO discretion element, and as more ATCO actions are collected, the models can be further trained for better accuracy. For future work, we will consider expanding the feature set by including parameters such as weather and wind. Moreover, human in the loop simulation will be performed to measure the effectiveness of the proposed approach. (shrink)

This three-volume set, LNCS 14325-14327 constitutes the thoroughly refereed proceedings of the 20th Pacific Rim Conference on Artificial Intelligence, PRICAI 2023, held in Jakarta, Indonesia, in November 2023. The 95 full papers and 36 short papers presented in these volumes were carefully reviewed and selected from 422 submissions. PRICAI covers a wide range of topics in the areas of social and economic importance for countries in the Pacific Rim: artificial intelligence, machine learning, natural language processing, knowledge representation and reasoning, planning (...) and scheduling, computer vision, distributed artificial intelligence, search methodologies, etc. (shrink)

Philosophy in Vietnam is defined as a system of the most universal points of view on the world and the place of man in this world. Philosophy often plays a key role it plays in one’s worldview and methodology. The question is: on what problems should philosophy focus in order to successfully carry out its worldview andmethodological role in the present context? Firstly, if international philosophers are focusing their research on problems caused by globalization, Vietnamese philosophers should orient their research (...) on the practical problems raised by building and developing our country in the context of globalization and international economic integration. Secondly, one of the important tasks for Vietnamese philosophers is to research the philosophical thought of Vietnam. Thirdly, one of the no less important tasks for people engaging in research and teaching of philosophy in Vietnam is to investigate the trends and ideas of preeminent world philosophers, both in the East as well as in the West. (shrink)

This three-volume set—LNAI 13031, LNAI 13032, and LNAI 13033—constitutes the thoroughly refereed proceedings of the 18th Pacific Rim Conference on Artificial Intelligence (PRICAI 2021), held in Hanoi, Vietnam, in November 2021. The 93 full papers and 28 short papers presented in these volumes were carefully reviewed and selected from 382 submissions. -/- PRICAI covers a wide range of topics of social and economic importance for countries in the Pacific Rim, including artificial intelligence, machine learning, natural language processing, knowledge representation and (...) reasoning, planning and scheduling, computer vision, distributed artificial intelligence, and search methodologies. -/- Part I includes the following topical headings: AI Foundations / Decision Theory, Applications of AI, Data Mining and Knowledge Discovery, Evolutionary Computation / Optimization, and Knowledge Representation and Reasoning. -/- . (shrink)

The principle of mandatory prosecution (MP) is respected, extensively applied, and has a long-standing tradition in continental European countries, and it is highly valued in socialist nations. However, in recent decades, there has been a notable shift in its implementation within these countries, with numerous studies reflecting this change by presenting diverse perspectives on the necessity to alter, modify, or preserve this principle. One of the primary aims of this paper is to examine the scope of research on responses to (...) MP and the main reasons for maintaining or renewing MP highlighted in related publications. This paper employed a systematic literature review (SLR) to search the Scopus and Web of Science (WoS) databases, compiling a total of 28 papers spanning 50 years. These articles cover a wide range of countries and diverse jurisdictions currently applying either MP or discretionary prosecution (DP) principles. Furthermore, the literature review includes various arguments and discussions on how countries should respond to MP. Findings indicate that MP persists due to its enduring values, such as legality and equality, alongside its significant role in safeguarding the criminal justice system against arbitrariness and abuse of power. Our paper also reveals that the tendency to renew or replace MP is influenced not only by conflicting opinions but also by political factors and the consideration of victims’ discretion in certain offenses, particularly in cases of domestic violence. Additionally, three options for reconciling MP and DP principles are proposed to aid readers in understanding the transition process between these two fundamental principles. Ultimately, the paper advocates for further research on MP in current or former socialist countries, where applicable. (shrink)

Since 2013, Vietnam has implemented a plan to reform the whole education sector. However, there is little understanding on the status of educational research in Vietnam, which may lay the foundation for such plan. Thus, this research aims to analyze the whole picture of educational research from Vietnam, as seen from the Clarivate Web of Science (WOS) database: 215 publications were recorded, ranging from 1991 to 2018. These 215 publications were further analyzed from five perspectives: 1) number of publications by (...) year; 2) research fields and levels of education; 3) top institutions with the highest number of publications; 4) international collaboration; and 5) quality. Some of the most notable results are: 1) the educational sciences in Vietnam have been still under-developed until recently; 2) among different research topics research among educational sciences, some (e.g., Vocational Education and Training or Early Childhood Education) seemed to be overlooked whereas others (e.g., Higher Education and Teaching and Learning) seemed to receive more attention from educational scholars; 3) all the most major education – specialized universities did not appear among the top five institutions with highest number of publications; 4) Australia, Thailand, the USA, New Zealand and China were the countries with the highest number of co-publications with Vietnamese researchers; and 5) The majority of publications belonged to low-ranked journals. Implications would be withdrawn for Vietnamese policymakers, education leaders, educational researchers and teachers in order to adjust their policies and/or action plans; thus, enhancing the performance and impacts of educational research in the future. (shrink)

Nowadays, the power systems are getting more and more complicated because of the delays introduced by the communication networks. The existence of the delays usually leads to the degradation and/or instability of power system performance. On account of this point, the traditional load frequency control approach for power system sketches a destabilizing impact and an unacceptable system performance. Therefore, this paper proposes a new LFC based on adaptive integral second-order sliding mode control approach for the large-scale power system with communication (...) delays. First, a new linear matrix inequality is derived to ensure the stability of whole power systems using Lyapunov stability theory. Second, an AISOSMC law is designed to ensure the finite time reachability of the system states. To the best of our knowledge, this is the first time the AISOSMC is designed for LFC of the LSPSwCD. In addition, the report of testing results presents that the suggested LFC based on AISOSMC can not only decrease effectively the frequency variation but also make successfully less in mount of power oscillation/fluctuation in tie-line exchange. (shrink)

Ultra-high-performance concrete (UHPC) is gaining popularity due to its superior mechanical properties, including high strength, toughness, durability, and excellent seismic performance. However, the risk of explosive spalling in UHPC structures exposed to fire poses a significant challenge, fundamentally hindering comprehensive studies on fire safety and limiting the broader engineering applications of UHPC. In this study, the mixture proportion of UHPC was developed and optimized by comparing the usage of yellow river and standard sands, different types of chemical admixtures, and different (...) curing regimes. Furthermore, a sensitive case study was also conducted to optimize the calcined bauxite content to improve UHPC's fire resistance. For these purposes, 189 UHPC cubes, incorporating variations in particle types, superplasticizer types, and curing regimes, were tested under three thermal levels, such as 200℃,400℃, and 600℃. The microstructural evolution of heated cube specimens was then observed using a scanning electron microscope (SEM) examination. Calcined bauxite was then considered to replace the standard sand to improve the fire resistance of UHPC and enhance the residual compressive strength of cube specimens under thermal conditions. For this purpose, 0%, 20%, 40%, 60%, 80%, and 100% calcined bauxite content was designed as six case studies. Furthermore, the degradation of UHPC strength was also investigated for the corresponding six case studies by conducting the uniaxial compressive experiments. Finally, the microstructural evolution under both thermal conditions and calcined bauxite content was observed and discussed. (shrink)

Relationships with international students can be beneficial to higher education in terms of financial and human resources. For this reason, establishing and maintaining such relationships are usually pre-eminent concerns. In this study, we extended the application of the disconfirmation expectation model by incorporating components from subjective task value to predict the loyalty of international students toward their host countries. On a sample of 410 Vietnamese students enrolled in establishments of higher education in over 15 countries across the globe, we employed (...) structural equation model to construct the conceptual model. Our empirical findings revealed that while the roles of satisfaction and disconfirmation are still important as direct and indirect antecedents of international student loyalty, its most powerful predictors are the three components of subjective task value: attainment, utility and intrinsic. These insights result in a number of implications for actors on the higher ducation scene, such as heads of institutions and policy makers. (shrink)

Motivated by exploitation concerns, we argue for the importance of participant engagement in basic human intracranial electrophysiology research. This research takes advantage of unique neurosurgical opportunities to better understand complex systems of the human brain, but it also exposes participants to additional risks without immediate therapeutic intent. We argue that understanding participant values and incorporating their perspectives into the research process may help determine whether and to what extent research practices and the resulting distributions of risks and benefits constitute exploitation (...) and contribute to building a brain research paradigm that is genuinely responsive to participant values. More broadly, we highlight the importance of paying attention to participant interests in non-therapeutic brain research. (shrink)

A decrease in cortical excitability tends to be easily followed by an increase induced by external stimuli via a mechanism aimed at restoring it; this phenomenon is called “homeostatic plasticity.” In recent years, although intervention methods aimed at promoting motor learning using this phenomenon have been studied, an optimal intervention method has not been established. In the present study, we examined whether subsequent motor learning can be promoted further by a repetitive passive movement, which reduces the excitability of the primary (...) motor cortex before motor learning tasks. We also examined the relationship between motor learning and the brain-derived neurotrophic factor. Forty healthy subjects participated. Subjects were divided into two groups of 20 individuals each. The first group was assigned to perform the motor learning task after an intervention consisting in the passive adduction–abduction movement of the right index finger at 5 Hz for 10 min, while the second group was assigned to perform the task without the passive movement. The motor learning task consisted in the visual tracking of the right index finger. The results showed that the corticospinal excitability was transiently reduced after the passive movement in the RPM condition, whereas it was increased to the level detected in the control condition after the motor learning task. Furthermore, the motor learning ability was decreased immediately after the passive movement; however, the motor performance finally improved to the level observed in the control condition. In individuals carrying the Val/Val genotype, higher motor learning was also found to be related to the more remarkable changes in corticospinal excitability caused by the RPM condition. This study revealed that the implementation of a passive movement before a motor learning tasks did not affect M1 excitatory changes and motor learning efficiency; in contrast, in subjects carrying the Val/Val polymorphism, the more significant excitatory changes in the M1 induced by the passive movement and motor learning task led to the improvement of motor learning efficiency. Our results also suggest that homeostatic plasticity occurring in the M1 is involved in this improvement. (shrink)

Men who spend a greater proportion of time apart from their female partner since the couple’s last copulation are at greater “objective” sperm competition risk. We propose a novel cue to sperm competition risk: the time she spends with her male friends. Four hundred and twenty men in a committed, heterosexual, sexual relationship completed a questionnaire. The results indicate that men at greater objective sperm competition risk report less time desired until the couple’s next copulation, greater interest in copulating with (...) their partner, and greater anger, frustration, and upset in response to their partner’s sexual rejection, but only among men whose partner spends more time with her male friends. These results remain after controlling statistically for the participant’s age and their partner’s age. We discuss limitations of the current research, and discuss how research in human sperm competition can inform social issues, including men’s partner-directed sexual coercion. (shrink)

Il y a trop de distance entre les conceptions abstraites de la Physique et les modèles intuitifs empruntés à l'univers concret pour que l'on puisse espérer tirer de l'utilisation de ceux-ci des indications exactes. Il faut recourir à des modèles déjà conceptuels et abstraits empruntés plutôt à l'univers mathématique qu'à l'univers sensible.

In this paper, I compare the methodology of the Austrian school to two alternative methodologies from the economic mainstream: the ‘orthodox’ and revealed preference methodologies. I argue that Austrian school theorists should stop describing themselves as ‘extreme apriorists’ (or writing suggestively to that effect), and should start giving greater acknowledgement to the importance of empirical work within their research program. The motivation for this dialectical shift is threefold: the approach is more faithful to their actual practices, it better illustrates the (...) underlying similarities between the mainstream and Austrian research paradigms, and it provides a philosophical foundation that is much more plausible in itself. (shrink)

The recent availability of multiple avian genomes has laid the foundation for a huge variety of comparative genomics analyses including scans for changes and signatures of selection that arose from adaptions to new ecological niches. Nocturnal adaptation in birds, unlike in mammals, is comparatively recent, a fact that makes birds good candidates for identifying early genetic changes that support adaptation to dim‐light environments. In this review, we give examples of comparative genomics analyses that could shed light on mechanisms of adaptation (...) to nocturnality. We present advantages and disadvantages of both “data‐driven” and “hypothesis‐driven” approaches that lead to the discovery of candidate genes and genetic changes promoting nocturnality. We anticipate that the accessibility of multiple genomes from the Genome 10K Project will allow a better understanding of evolutionary mechanisms and adaptation in general. -/- . (shrink)

In recent years Vietnam has experienced a high sex ratio at birth SRB) amidst rapid socioeconomic and demographic changes. However, little is known about the differentials in SRB between maternal socioeconomic and demographic groups. The paper uses data from the annual Population Change Survey (PCS) in 2006 to examine the relationship of the sex ratio of the most recent birth with maternal socioeconomic and demographic characteristics and the number of previous female births. The SRB of Vietnam was significantly high at (...) 111.4 (95% CI 109.7–113.1) for the period 1st April 2000 to 31st March 2006. Multivariate analysis reveals that sex of the most recent birth is strongly related with the number of previous female births. This association is consistent across different socioeconomic and demographic groups of women. Given the high SRB in Vietnam, further research into the reasons for high SRB in these groups is required, as are intervention programmes such as those raising the public awareness of its negative consequences. © Cambridge University Press, 2010. (shrink)

During the last two decades Confucian heritage culture countries have widely promoted teaching and learning reforms to advance their educational systems. To skip the painfully long research stage, Confucian heritage culture educators have borrowed Western philosophies and practices with the assumption that what has been done successfully in the West will produce similar outcomes in the East. The wide importation of cooperative learning practices to Confucian heritage culture classrooms recently is an example. However, cooperative learning has been documented in many (...) studies not to work effectively in Confucian heritage culture classrooms. The reason is that the educators often impose this instructional method on the students without a careful consideration of its appropriateness in the socio-cultural context of Confucian heritage culture countries. This procedure is not effective and professional because learning does not stand alone. Rather, it is shaped and influenced by other factors including teaching methods, learning tasks, assessment demands, workload and the learning culture of students in the local context. For cooperative learning to work effectively in Confucian heritage culture classrooms, reformers need to consider the importation of this approach in line with a careful examination of all supports and constraints that affect those factors that are associated with learning. The volume provides an applied theoretical framework and culturally appropriate and practical instructions that could assist Confucian heritage culture educators and teachers to address various factors at multiple levels in order to optimize success in importing cooperative learning to their classrooms. Overall, it provides strategies to assist Confucian heritage culture teachers to change their teaching practices, redesign lessons plans, design assessment methods, and organize learning activities in a manner that can influence Confucian heritage culture students to shift from employing teacher-centered learning approaches to cooperative learning. (shrink)

Harcourt argues that in clinical contexts, children and young people with mental health illness can experience epistemic, specifically testimonial, injustice when their perspectives are unjustifiably discounted by health service providers.1 Our goal in this commentary was to illustrate how caregivers, a critical component of CYP treatment triad, can also engage in testimonial injustice towards CYP patients. Testimonial injustice occurs when one suffers a credibility deficit and that credibility deficit is based on prejudice.2 Harcourt expands Fricker’s account of testimonial injustice by (...) arguing that for CYPs, the credibility deficits attributed to them by clinicians, for example, may result from epistemic arrogance in that CYPs are viewed as having unreliable knowledge about their condition. Harcourt writes: ‘Being a CYP is treated as a heuristic for epistemic unreliability across a wide range of domains’, including clinical settings. Harcourt’s expansion of Fricker’s account thus includes epistemic arrogance as an alternative necessary condition, in addition to prejudice, to apply the concept of testimonial injustice. We think Harcourt’s argument can also be extended to caregivers, who are central to the CYP treatment triad. We illustrate how this may be the case by drawing from research we conducted to understand the perspectives of clinicians and prospective families, both caregivers and paediatric patients with obsessive–compulsive disorder about the possibility of …. (shrink)

Computational drug repositioning has been proven as a promising and efficient strategy for discovering new uses from existing drugs. To achieve this goal, a number of computational methods have been proposed, which are based on different data sources of drugs and diseases. These methods approach the problem using either machine learning- or network-based models with an assumption that similar drugs can be used for similar diseases to identify new indications of drugs. Therefore, similarities between drugs and between diseases are usually (...) used as inputs. In addition, known drug-disease associations are also needed for the methods as prior information. It should be noted that those associations are still not well established due to the fact that many of marketed drugs have been withdrawn and this could affect the outcome of the methods. In this study, we propose a novel method named RLSDR to find new uses of drugs. More specifically, it relies on a semi-supervised learning model, Regularized Least Square, thus it does not require definition of non-drug-disease associations as previously proposed machine learning-based methods. In addition, the similarity between drugs measured by chemical structures of drug compounds and the similarity between diseases which share phenotypes can be represented in a form of either similarity network or similarity matrix as inputs of the method. Moreover, instead of using a gold-standard set of known drug-disease associations, we construct an artificial set of the associations based on known disease-gene and drug-target associations. Experiment results demonstrate that RLSDR achieves better prediction performance on the artificial set of drug-disease associations than that on the gold-standard ones in terms of area under the Receiver Operating Characteristic curve. In addition, it outperforms two representative network-based methods irrespective of the prior information of drug-disease associations. Novel indications for a number of drugs are also identified and validated by evidences from a different data resource. (shrink)

Le but de la recherche est de construire une base de données fonctionnant sur les principes de l’informatique décisionnelle. L’objet de la communication est de décrire la hiérarchie des diverses dimensions de la base de données. Elle permettra d’observer la diversité des relations temporelles dans des textes enfantins. L’analyse s’appuie sur un corpus de 200 récits d’élèves de cycle 3 de l’école élémentaire française. La communication questionne : - le découpage séquentiel du texte - l’analyse interne des séquences - la (...) normalité des productions des élèves. (shrink)

This study examines the hypothesis that the stopping rule-a traditional postnatal sex selection method where couples decide to cease childbearing once they bear a son-plays a role in high sex ratio of last births (SRLB). The study develops a theoretical framework to demonstrate the operation of the stopping rule in a context of son preference. This framework was used to demonstrate the impact of the stopping rule on the SRLB in Vietnam, using data from the Population Change Survey 2006. The (...) SRLB of Vietnam was high at the level of 130 in the period 1970-2006, and particularly in the period 1986-1995, when sex-selective abortion was not available. Women were 21% more likely to stop childbearing after a male birth compared with a female birth. The SRLB was highest at parity 2 (138.7), particularly in rural areas (153.5), and extremely high (181.9) when the previous birth was female. Given the declining fertility, the stopping rule has a potential synergistic effect with sex-selective abortion to accentuate a trend of one-son families in the population. (shrink)

In today’s global higher education environment, international students represent not only an important source of external income for universities: the degree of cross-border student mobility also reflects the internationalization of higher education sector. Universities have engaged in efforts to sell themselves to prospective students and promotional videos are among the most widely used marketing tools for this purpose. This study reports the results of a study analyzing the content of 140 higher education promotional videos from 14 countries available on YouTube. (...) The results reveal that while the pattern of use of YouTube for two-waycommunication with viewers, information contents and appeal messages among sampled universities is fairly homogenous, some marked differences emerge when cultural background and global position ranking of the university are taken into account. The implications of these findings are that, although, transnational higher education has been profoundly globalized, culture still plays a significant role in marketing practice for the recruitment of mobile students. In addition, different universities have various student-targeted segments. These findings provide the basis of a series of recommendations for universities looking to optimize their use of YouTube and promotional video design to market to international students. (shrink)