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nterspecific hybridization had been long recognized as a widespread evolutionary process in vascular plants. In the present review, we summarize knowledge concerning studies of interspecific hybridization in bryophytes before and after the advent of molecular methods. The available data indicate that hybridization is an important evolutionary phenomenon among bryophytes. evidence fo
Climate change is intensifying globally, leading to rising temperatures. The Arctic being a vulnerable and extreme environment faces an enhanced warming effect, referred to as the Arctic amplification. In this rapidly changing environment, high amounts of carbon (1,460 – 1,600 Pg C) are stored in permafrost. This is four times the amount of carbon being emitted by humans in modern times. Increasin
This thesis investigates how high-level planning principles can be deterministically and algorithmically incorporated into a sampling-based motion planner by modifying the structure of the RRT* algorithm. In particular, the requirement to always end a planned route by a reversing maneuver can be directly imposed through the expansion and connection logic of bidirectional search-trees, rather than
Hadfield steel is widely used in heavy-duty applications involving high impact loads and abrasive wear, such as mining and stone crushing equipment, due to its high toughness, ductility, and work-hardening ability. However, the as-cast microstructure contains carbide precipitation and chemical segregation, particularly along grain boundaries, which causes embrittlement and reduce service performan
Early Warning Systems (EWS) are crucial for safeguarding communities, but are vulnerable to failure due to a technocratic focus that excludes local communities. This thesis closes the gap between normative participatory principles and practical implementation by exploring the entry points or challenges that affect community participation. Adopting a complexity theory lens, the study conducts a qua
Komplex mjukvara kräver testning på flera nivåer. Detta examensarbete undersöker automatiserad testning av Radio Block Centre (RBC). En RBC bestämmer hur långt ett tåg får köra och i vilken hastighet. Examensarbetet har tre fokusområden. Det första området undersöker hur nuvarande testscript kan göras mer dynamiska genom att införa slumpmässighet. Slumpmässighet införs genom att variera tåglängd. Complex software must be tested carefully. This thesis looks at how automated testing can be improved for Alstom’s Radio Block Centre, a system that supervises trains and sends movement authorities. The work focuses on three practical ways to improve an existing automated test setup. First, it studies how the test suite can be made more dynamic by introducing randomness into current test scripts.
Purpose: High-risk colon cancer may benefit from preoperative chemotherapy (preCHT), but evidence on its short-term safety and outcome is limited. Population-based evidence before its incorporation into national guidelines is lacking. Methods: Patients with final weighted stage II–III colon cancer undergoing elective resection between 2007 and 2017 were identified in the Swedish Colorectal Cancer
Closed-form conditions for bound states in the continuum are derived for planar, cylindrical, and spherical cavities enclosed by metasurfaces with electric and magnetic response. While the combined response in lossless systems enables field confinement in arbitrarily small cavities, the gain-enabled bound states in the continuum are found to coalesce with a laser mode, leading to intriguing single
Given the increasing number of heterogeneous data stored in relational databases, file systems or cloud environment, it needs to be easily accessed and semantically connected for further data analytic. The potential of data federation is largely untapped, this paper presents an interactive data federation system (https://vimeo.com/319473546) by applying large-scale techniques including heterogeneo
Photonics technologies play a crucial role in driving technological advancements within the agrifood industry, aiming to deliver a sustainable food and agriculture, and offering healthy, nutritious and safe food for all of us. Particularly, optical sensors and imaging systems, together with machine-learning processing and advanced lighting, play a pivotal role in monitoring crop and soil health wi
This study presents a modular approach for the synthesis of multifunctional affinity sorbents, facilitating molecular separation via magnetic molecularly imprinted polymers. A magnetic propranolol-imprinted polymer (MIP) nanocomposite with superparamagnetic characteristics was synthesized through precipitation polymerization process coupled with coprecipitation methods. Initially, the propranolol-
OBJECTIVES: Implementation of the Stroke Action Plan for Europe (2018-2030) (SAP-E) was initiated in 2019. It is now updated at mid-term to reflect and respond to challenges for stroke care in Europe in 2025. METHODS: The SAP-E covers the entire chain of stroke care. The sections (state of the art, current status and targets) were developed by working groups and finalised based on inputs from the
BACKGROUND: Despite decades of initiatives promoting individual behavior change, obesity rates remain high and continue to rise globally, indicating that what is commonly labelled as “obesity prevention” is not, in practice, preventing obesity. While health promotion strategies and policy interventions have demonstrated improvements in environments, health behaviors, and industry practices, their
Decarbonizing society will require a shift toward renewable electricity production. However, the temporal configuration of renewables requires that demand adapt accordingly. Introducing intermittent electricity production will thus require end users to be more flexible in their use of electricity. Flexibility capital has been promoted as a concept for analyzing material preconditions in order to u
Opportunities and barriers for occupational engagement among residents in supported housing. Background: Research shows that people with psychiatric disabilities view supported housing (SH) as a possibility for social contact, but also as entailing a risk of deprived self-determination. There is, however, little research on the target group’s engagement in everyday occupations. Aim: To explore SH
The framework of Dynamical Movement Primitives (DMPs) has become a popular method for trajectory generation in robotics. Most robotic systems are subject to saturation and/or kinematic constraints on motion variables, but DMPs do not inherently encode constraints and this may lead to poor tracking performance. Temporal coupling (online temporal scaling) of DMPs represents a possible way for handli
