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Publications - 6383

Invisible lives: understanding the food insecurity and food-seeking behaviour among Bangladeshi undocumented migrants amidst the COVID-19 pandemic

Md Mizanur Rahman Mohammad Fakhrul Islam Md Khaled Sifullah Md Salman Sohel Mosamat Umma Kulsum Noyon Ali

Publication Name: BMC Public Health

Publication Date: 2026-12-01

Volume: 26

Issue: 1

Page Range: Unknown

Description:

Background: Undocumented migrants often face significant socio-economic and health vulnerabilities, which are further intensified during global crises such as the COVID-19 pandemic. Among these challenges, food insecurity emerges as a critical concern, particularly for migrants lacking legal status, social protection, and access to basic services. This study examines the prevalence of food insecurity and food-seeking behaviour-related coping mechanisms among Bangladeshi undocumented migrants living in Malaysia, Iraq, and Libya during the COVID-19 pandemic. Methods: Twenty-seven undocumented Bangladeshi migrants were interviewed using a qualitative Interpretative Phenomenological Approach (IPA). The author combined an integrated data-driven inductive technique to code and analyse the data. The data analysis followed the six-step process of Interpretative Phenomenological Analysis (IPA). Results: The study reveals that COVID-19 has significantly impacted their food security, including food unavailability and inaccessibility, decreasing consumption, increasing reliance on cheaper and malnutrition food, as well as hunger and starvation. To cope, they adopted various food-seeking behaviors, such as receiving support from friends and relatives, taking loans, seeking food assistance from different sources, and selling personal belongings. Conclusion: The findings highlight the vulnerability of undocumented migrants during crises and suggest the need for targeted policy interventions to enhance food security for this marginalized group. The study offers critical insights for policymakers, aid organizations, and stakeholders to develop effective strategies and policies that mitigate food insecurity among undocumented migrants, thereby contributing to achieving sustainable development goals by 2030.

Open Access: Yes

DOI: 10.1186/s12889-025-25851-x

Merging of shielded Gaussian vortices and formation of a tripole at low Reynolds numbers

Gábor Tóth Gábor Házi

Publication Name: Physics of Fluids

Publication Date: 2010-01-01

Volume: 22

Issue: 5

Page Range: 1-7

Description:

The interaction between two corotating shielded Gaussian vortices is studied by two-dimensional numerical simulations at low Reynolds numbers. It is shown that the outcome of the interactions can be a shielded monopole, a tripole, or dipolar breaking depending on the initial separation distance and Reynolds number. A flow regime map is given in the parameter space of initial separation distance and Reynolds number. Using formal decomposition for vorticity, we show that the tripole formation is due the same physical mechanism than merging of unshielded vortices, while in dipolar breaking both the symmetric and antisymmetric vorticity contributions play important role. © 2010 American Institute of Physics.

Open Access: Yes

DOI: 10.1063/1.3428539

Challenges and opportunities in sustainability reporting: a focus on small and medium enterprises (SMEs)

Santi Setyaningsih Rosita Widjojo Peter Kelle

Publication Name: Cogent Business and Management

Publication Date: 2024-01-01

Volume: 11

Issue: 1

Page Range: Unknown

Description:

The purpose of the study was to observe how Small and Medium-sized Enterprises (SMEs) struggle to develop the sustainability reports that are today important and required by consumers. The rationale is that the sustainability report is influenced by governance practices, social responsibility, and environmental impact. The research successfully summarizes the barriers from 37 influential sustainability report papers by employing a thorough systematic literature review. It was based on 6 well-known databases with the limitation of exclusion criteria such as 11 years of research (2012–2023), used English, and more than 4 pages articles. According to the findings of this literature review approach, SMEs encounter six different sorts of barriers while trying to develop a sustainable report: financial, general attitude, knowledge and technology, organizational, policies and regulations as well as socio-environmental barriers. Based on this result, the top management of SMEs will be able to determine how to prioritize removing the biggest obstacles of their reporting task.

Open Access: Yes

DOI: 10.1080/23311975.2023.2298215

Fuzzy rule base extraction by the improved bacterial memetic algorithm

János Botzheim László Gál António E. Ruano László T. Kóczy

Publication Name: Sami 2008 6th International Symposium on Applied Machine Intelligence and Informatics Proceedings

Publication Date: 2008-08-25

Volume: Unknown

Issue: Unknown

Page Range: 49-53

Description:

In this paper we introduce new methods for handling knot order violation occurred in the Bacterial Memetic Algorithm (BMA) used for fuzzy rule base extraction. These methods perform slightly better than the method used before and are easier to integrate with the Bacterial Memetic Algorithm. ©2008 IEEE.

Open Access: Yes

DOI: 10.1109/SAMI.2008.4469132

Port number consumption of the NAT64 IPv6 transition technology

Sandor R. Repas Tamas Hajas G. Lencse

Publication Name: 2015 38th International Conference on Telecommunications and Signal Processing Tsp 2015

Publication Date: 2015-10-09

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

Due to the depletion of the global IPv4 address pool, the internet service providers will be able to supply their new clients with IPv6 addresses only in the near future. The application of the DNS64 and NAT64 technologies can enable the IPv6 only clients to communicate with the still dominant IPv4 only servers. However, the clients of certain applications such as HTTP and FTP use multiple sessions and thus they consume multiple ports. This phenomenon may cause a lack of ports situation at the NAT64 gateway. Therefore the port consumption of the different applications is an important design parameter of the NAT64 gateways. In this paper, the port consumption of different NAT64 compatible applications was measured. It was also determined what factors can influence the port consumption of a web or an ftp client. The detailed description of our measurement method is given. Our results can give a valuable help for careful design and configuration of a NAT64 gateway.

Open Access: Yes

DOI: 10.1109/TSP.2015.7296411

Simulation of a vector hysteresis measurement system taking hysteresis into account by the vector Preisach model

Miklós Kuczmann

Publication Name: Physica B Condensed Matter

Publication Date: 2008-02-01

Volume: 403

Issue: 2-3

Page Range: 433-436

Description:

The paper deals with the numerical analysis of a rotational single sheet tester with round-shaped specimen (RRSST) which is now under construction. The measurement setup consists of an induction motor the rotor of which has been removed, and its windings have been replaced to a special two phase one which can generate homogeneous magnetic field inside the motor. The two orthogonal components of the magnetic field intensity and of the magnetic flux density vectors can be measured by H-coils and B-coils, respectively. The Finite Element Method (FEM) with the T, Φ-Φ potential formulation has been applied in the simulations. The vector hysteresis property of the specimen has been approximated by the vector Preisach model. Finally, the nonlinear problem has been solved by the fixed-point technique. The aim of the present work is to focus on the design aspects of this kind of measurement system. © 2007 Elsevier B.V. All rights reserved.

Open Access: Yes

DOI: 10.1016/j.physb.2007.08.068

Synchronistic historical background for Jung-Pauli's modelling of psyche and nature concerning the aquarius myth part I: The aquarius mythologem in the 'St. John-St. Andrew' enamel picture of the Holy Crown of Hungary

Peter Varlaki Péter Baranyi

Publication Name: 7th IEEE International Conference on Cognitive Infocommunications Coginfocom 2016 Proceedings

Publication Date: 2017-01-03

Volume: Unknown

Issue: Unknown

Page Range: 439-454

Description:

The paper discusses the presentations of special great works of art to compare their system of 'representation' and meaning to the similar identifiable and re-interpreted symbols, imagery and meaning communications in between Jung and Pauli's 'imagination and interpretation space'. In the first part of the paper we attempt to prove hypothesis of the meaningful synchronicity by the symbolic interpretation of three interrelated, stunningly beautiful and unique images of the apostles on the Holy Crown of Hungary.

Open Access: Yes

DOI: 10.1109/CogInfoCom.2016.7804589

Evolving spiking neural network for robot locomotion generation

János Botzheim Noriko Takase Naoyuki Kubota

Publication Name: 2015 IEEE Congress on Evolutionary Computation CEC 2015 Proceedings

Publication Date: 2015-09-10

Volume: Unknown

Issue: Unknown

Page Range: 558-565

Description:

In this paper, we propose locomotion generation for a mobile robot. Legged robot can walk in various complex terrains such as stairs as well as in flat environment. However, setting its behaviour to adapt to various environments in advance is very difficult. The robot can mimic the movement of organisms based on computational intelligence. In this study, we apply spiking neural network, which can take into account the transition of temporal information between the neurons. More specifically, the motion patterns are generated by applying a spiking neural network trained by Hebbian learning and evolution strategy, by using data provided by the physics engine measuring the distance walked by the robot and applied the motion patterns to real robot. Simulation was conducted to confirm the proposed technique.

Open Access: Yes

DOI: 10.1109/CEC.2015.7256939

Urbanization, Industrialization, and Energy Transition: An Empirical Analysis of Life Expectancy in a Developing Economy

Pasquale Marcello Falcone Md Hasanur Rahman Fariha Akter Lucky Syeda Sajia Afroz Rumpa

Publication Name: Sustainable Development

Publication Date: 2026-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

Urbanization is a defining feature of contemporary development, shaping economic opportunities, social structures, and health outcomes. This study examines the influence of urbanization on life expectancy in Bangladesh, with particular attention to the role of the energy mix and industrialization. Using annual data from 1971 to 2024 and applying the Autoregressive Distributed Lag (ARDL) model based on results of the unit root test, where some variables are stationary at level I(0) and some are at first difference I(1), the analysis explores both short- and long-run dynamics. The results indicate that a 1% increase in urbanization raises life expectancy by 0.09% in the short run. Moreover, non-renewable energy consumption and industrialization are found to exert a positive impact on life expectancy due to extensive contribution to national development, where industrialization depends on energy consumption and industrialization leads the economic development in Bangladesh. On the other hand, renewable energy has failed to raise life expectancy due to lack of renewable energy access in Bangladesh. In addition, in the long run, urbanization has a positive impact, where a 1% increase of urbanization leads to raise life expectancy 0.10%. By linking urbanization, energy use, and industrial development, this research addresses a gap in the literature regarding their combined effect on human longevity in developing contexts. The study's findings have suggested policy implications for developing countries to improve urban residents' life expectancy by considering the aim of sustainable development goals (SDGs) 3, 7, and 11.

Open Access: Yes

DOI: 10.1002/sd.70825