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Climate change is a significant driver of human migration, especially in vulnerable regions like Somalia. This study investigates the relationship between climate variables—average annual precipitation, temperature, and CO₂ emissions—and net migration in Somalia, using time series data from 1990 to 2020. Additionally, it examines the role of population growth as a factor influencing migration. Applying the Autoregressive Distributed Lag (ARDL) model, this research captures both short- and long-term dynamics, providing insights into how environmental and demographic factors impact migration in this climate-sensitive region. The results indicate that favorable rainfall conditions positively influence net migration, as improved agricultural productivity stabilizes livelihoods, reducing pressures to migrate. In contrast, increased CO₂ emissions, associated with environmental degradation, negatively impact migration by limiting financial capacity, creating a "trapped population" effect. Population growth also intensifies migration pressures by increasing competition for limited resources. Interestingly, temperature variations do not significantly influence migration, possibly due to adaptive strategies or resilience to temperature fluctuations in the region. These findings underscore the need for policies focused on enhancing agricultural resilience, restoring degraded environments, and creating economic opportunities to reduce migration pressures in Somalia. Investments in sustainable land use, climate adaptation, and population management strategies are essential to address the complex challenges of climate-induced migration. [ABSTRACT FROM AUTHOR]

Ethiopia remains one of the least urbanized countries globally, although many of its urban centers, including Woldia, the capital of the North Wollo Zone, are undergoing rapid growth. Woldia has recently faced significant urban challenges due to its expanding horizontal growth. One of the major issues associated with this growth is the increasing demand for land and space, driven by population pressure, largely attributed to migration. This migration has led to the annexation of agricultural land at the rural periphery, further contributing to the town's horizontal expansion. This study aims to explore the key drivers behind the horizontal growth of Woldia, particularly in its peripheral areas. Data were collected through a structured questionnaire administered to a randomly selected sample of 395 respondents, complemented by key informant interviews and secondary data sources. Both qualitative and quantitative analytical methods were employed. The findings indicate that poor social services and poverty in migrants' areas of origin are the primary push factors. Conversely, improved social infrastructure and job opportunities at the destination are the main pull factors. Consequently, the influx of migrants has resulted in significant pressure on peri-urban areas, where housing availability and accessibility remain limited. The study recommends that local government officials and urban planners enhance their understanding of migration dynamics to effectively manage the town's spatial expansion and address the challenges of accommodating a growing population. [ABSTRACT FROM AUTHOR]

The application of geotextiles as filter materials in various systems, such as biofilters, wetlands, and wastewater treatment plants, has grown significantly in recent years. The ability of these materials to support biofilm growth makes them ideal for the removal of organic and inorganic contaminants present in wastewater. The objective of this research was to analyze clogging through variations in permeability, using column tests for 80 days with two types of nonwoven geotextiles with different grammages (GT120 and GT300), as well as to study the efficiency in the removal of organic matter. A synthetic wastewater was used, allowing the specific observation of biological clogging and the treatment carried out exclusively by microorganisms. The results indicated that bioclogging was not a significant factor within the experimental period. Through the mass test, a continuous increase in biofilm growth over time was observed for both geotextiles. For scanning electron microscopic (SEM) images, GT300 presented a larger biofilm area. A higher removal of COD (80%), N (52%), and P (36%) by microorganisms present in GT300 was found, which appears to be associated with its greater thickness and weight. The higher mesh density provides a larger area for the growth of microorganisms, allowing a greater amount of biomass to establish itself and contributing to the efficient removal of pollutants. These findings highlight the potential of using geotextile filters in wastewater treatment applications, where biofilm growth can positively contribute to contaminant removal without immediately compromising permeability. [ABSTRACT FROM AUTHOR]

The authors present a case involving a 37-year-old woman discovered in an operating freezer. Suicide hypothesis has been considered from the beginning. Due to the exceptional scene circumstances, a forensic autopsy was performed. Apart from some non-specific hypothermia and asphyxia signs, the autopsy revealed several skull fractures, prompting extensive anatomopathological and histological analyses. These analyses confirmed the fractures origin and determined whether they were ante-mortem or post-mortem, thus ruling out the possibility of a criminal act disguised as suicide. The authors also describe the challenges in determining the cause of death, particularly the issues related to the post-mortem diagnosis of lethal hypothermia and asphyxia. This case is the first in the literature to describe suicide by exposure to cold in a confined environment. It highlights the importance of close collaboration between forensic pathologists, histologists, toxicologists, and police investigators to answer judicial inquiries., Competing Interests: Declarations. Ethical approval: Not applicable. Research involving human participants and/or animals: Not applicable. Informed consent: Not applicable. Consent to publish: Not applicable. Competing interests: No funding was received to assist with the preparation of this manuscript. The authors have no relevant financial or non-financial interests to disclose., (© 2025. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)