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We analyze the oxygen abundances of a stellar sample representative of the two major Galactic populations: the thin and thick disks. The aim is to investigate the differences between members of the Galactic disks and contribute to the understanding of the origin of oxygen chemical enrichment in the Galaxy. The analysis is based on the [O i] = 6300.30 Å oxygen line in high-resolution spectra (R ∼ 5
AbstractThe overall aim of this thesis was to explore women´s experiences of the second stage of labour, midwifery practices and the use of interventions.Methods: Study I is a retrospective cohort study where 764 medical records from 2017 were reviewed. Women in Robson group 1 were included. Descriptive and analytic statistics were used to describe the use of oxytocin and to compare mode of birth
This chapter explores how technological advances can shape our future consumption, marketing, and society. Using a McLuhanian theoretical lens, and the metaverse as an illustrative example of emerging technological development, the chapter unpacks the marketing and socio-political implications of technological advances. It delves into how brands have been using the current rendition of the metaver
Background: Dissecting free tissue flaps can be challenging and time-consuming. Imaging technologies are typically used to assist with preoperative planning. However, conventional methods have limitations that could potentially be overcome by extended reality technologies. This systematic review aimed to evaluate the current use of extended reality (XR) in preoperative planning for microsurgical f
The base (BOP) and the top (TOP) of the world income pyramid represent the poor people and the people from developed countries, respectively. About two-fifths of the world population can be categorized as poor. Poverty is a trap because children born to poor parents are likely to grow up to be poor adults. In recent years, a poverty reduction approach that combines business development with povert
Based on recent advances in control theory, we propose the notion of jitter margin for periodic control tasks. The jitter margin isdefined as a function of the amount of constant delay in the controlloop, and it describes how much additional time-varying delay can betolerated before the loop goes unstable. Combined with schedulingtheory, the jitter margin can be used to guarantee the stability and
The secondary clarifier or settler is crucial for the whole activated sludge operation. Consequently, it is important to obtain a reliable analytical model as well as a useful numerical method, which can be used in the automatic control of the settling process. Discontinuities (shocks) appear physically, and an analytical description as well as a stable numerical algorithm must be able to handle t
The existence of a vertical age gradient in the Milky Way disc has been indirectly known for long. Here, we measure it directly for the first time with seismic ages, using red giants observed by Kepler. We use Stromgren photometry to gauge the selection function of asteroseismic targets, and derive colour and magnitude limits where giants with measured oscillations are representative of the underl
In this paper we argue that Long Wave Theory provides a useful conceptual tool for understanding the transition from the industrial to the, post-industrial economy. While economic theories struggle to fully explain the structural changes involved in the shift towards the information economy, long wave theory offers a promising avenue for understanding the complex relationship between technology an
Given the strength of nationalist sentiment across all Iraqi sects and the broad-based recognition of Sistani as a force for national unity, it will be difficult for Shia PMU groups to form a quasi-state in parallel to the Iraqi government once Isis is dislodged. In the eventuality of such a political outgrowth, the PMUs are bound to lose Sistani’s backing, and with it their legitimacy in the eyes
Aim of the review: This review aimed to evaluate the impact of Point-of-care Ultrasound during cardio- pulmonary resuscitation for adult non-traumatic CA on clinical outcomes and survival.Data sources: This review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The PubMed and Embase databases were searched on 14 November 2022. The
I jordbrukslandskapet produceras en mängd ekosystemtjänster, där mat, foder och fiber kanske är de mest uppenbara. För att dessa försörjande tjänster skall kunna produceras på ett långsiktigt hållbart sätt krävs även en rad så kallade intermediära ekosystemtjänster, som kretslopp av näringsämnen, pollinering, naturlig kontroll av skadeinsekter och reglering av vattenflöden. Även om dessa ekosystem
https://www.cec.lu.se/sv/sites/cec.lu.se.sv/files/sapes_brief_3_final.pdf - 2026-07-17
T cells are key cellular components of the adaptive immune system that play a critical role in our defense against pathogens and cancer but also contribute to pathology in the setting of chronic inflammation and autoimmunity. The thymus constitutes the body's major T cell production site, where bone marrow-derived progenitors migrate in a co-ordinated fashion through anatomically distinct cortical
The proliferation of renewable energy resources is imposing demands on electric distribution infrastructure that traditional low-frequency transformers are not equipped to fulfill. Conventional transformers operate with high energy efficiency but offer zero active controllability with no inherent power quality management and support for hybrid power flows. The solid state transformer (SST), a powe
