4 research outputs found
Sensing the Local Magnetic Environment through Optically Active Defects in a Layered Magnetic Semiconductor
No full textAtomic-level defects in van der Waals (vdW) materials are essential building blocks for quantum technologies and quantum sensing applications. The layered magnetic semiconductor CrSBr is an outstanding candidate for exploring optically active defects because of a direct gap, in addition to a rich magnetic phase diagram, including a recently hypothesized defect-induced magnetic order at low temperature. Here, we show optically active defects in CrSBr that are probes of the local magnetic environment. We observe a spectrally narrow (1 meV) defect emission in CrSBr that is correlated with both the bulk magnetic order and an additional low-temperature, defect-induced magnetic order. We elucidate the origin of this magnetic order in the context of local and nonlocal exchange coupling effects. Our work establishes vdW magnets like CrSBr as an exceptional platform to optically study defects that are correlated with the magnetic lattice. We anticipate that controlled defect creation allows for tailor-made complex magnetic textures and phases with direct optical access.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.QID/Taminiau La
Fasting and Its Impact on Microbiota, Metabolism, and Well-Being%253A A Physiological and Nutritional Approach
No full textThe modern lifestyle, characterized by uncontrolled eating, fast rhythm and lack of regular periods of metabolic rest, has significantly influenced the increase in chronic morbidity and the destabilization of the intestinal microbiota. Together with environmental pollution and constant stress, these factors have contributed to the deterioration of the population%20s health, prompting the search for natural and effective alternatives for rehabilitation. Fasting, known for centuries as a spiritual and physiological practice, has gained increasing interest in recent decades as a possible strategy for metabolic regeneration, increasing insulin sensitivity, stimulating autophagy and significantly improving the intestinal microbiota. Numerous studies at the global level in animal and human models clearly demonstrate the potential of fasting for cell regeneration, reducing inflammation and increasing the body%20s protective capacities. The aim of this study is to investigate the impact of fasting on the remodeling of thegut microbiota and the improvement of metabolic and mental functions. Special attention is givento the distinction between the microbiota inherited at birth and the one gradually shaped throughout life by nutrition and lifestyle. The analysis is structured around a theoretical framework developed step bystep, unraveling the biological mechanisms triggered during fasting and their effects onthegut microbiota. A multidisciplinary perspective is adopted, incorporating insights on autophagy, stem cells, ketone body production, and refeeding phases in relation to the intestinal flora. Complementary laboratory data are included, primarily from the scientific literature, alongsideselected original food analyses. These are not only for their nutritional value alone, but tobetterunderstand how specific foods promote or hinder the growth of beneficial gut microbe. Fasting, through temporary suspension of food intake, activatesmetabolic pathways that support the regeneration of the gut microbiota and enhance insulinsensitivity. Reduced oxidative stress, increased mental clarity, and a more stable microbial composition were observed. Fasting represents a natural and controlled mechanism for rebalancing the body–microbiota relationship, offering significant benefits for metabolism, cognition, and long-termwell-being.When applied carefully and adapted to individual needs, it can serve as a powerful preventive and supportive health strategy
POSTIGNUĆA I IZAZOVI ZNANSTVENE DISCIPLINE NOVA TEHNOLOGIJA U POUČAVANJU I UČENJU STUDENATA MAGISTARSKOG STUDIJA
No full textThis paper is the result of the authors’ research and their personal experience during the implementation of New technologies in teaching and learning, as well as the experiences of other colleagues involved in the implementation of the programme. This paper analyzes the benefits that a student (a future teacher) may obtain through the scientific discipline of Educational Technologies. The study is based on the contemporary literature on Educational Technologies and some results of qualitative and quantitative research on the achievements of this programme. Academic, historical and curricular background serves as an introduction to this paper. The author speaks about Educational Technologies with respect to: the reasons for the inclusion of this discipline in the curriculum of the Master’s programme, the reasons that led to the consideration of this proposal during the debate in the context of new developments in schools, reports on the quality of teachers, the possibilities for the electronic evaluation and testing, building skills necessary for teachers, as well as advantages and benefits of this discipline. Realization of the programme is not only associated with achievements, but also challenges that are presented in the paper, and in addition to the presented attitudes and recommendations represent the final part of the research.Članak je rezultat istraživanja i osobnog iskustva autora tijekom provedbe programa Nove tehnologije u poučavanju i učenju te iskustva ostalih kolega uključenih u provedbu programa na sveučilištima u Albaniji. Ovaj rad analizira prednosti koje će student (budući učitelj) dobiti znanstvenom disciplinom Obrazovne tehnologije. Istraživanje se temelji na suvremenoj literaturi o obrazovnim tehnologijama i nekim rezultatima kvalitativnih i kvantitativnih istraživanja o postignućima ovog programa. Akademska, povijesna i kurikulska pozadina služi kao uvod u ovaj rad. Autor govori o predmetuObrazovne tehnologije s obzirom na: razloge za uključivanje ove znanstvene discipline u kurikul magistarskog studija, razloge koji su doveli do razmatranja ovog prijedloga tijekom rasprava u kontekstu novih zbivanja u školi, izvješća o kvaliteti nastavnika, mogućnostima elektroničkog vrednovanja i testiranja, izgradnji vještina neophodnih za nastavnike te prednosti i koristi ove discipline. Realizacija programa nije povezana samo s postignućem, već i izazovima koji su predstavljeni u radu, a koji, uz obrazložene stavove i preporuke, predstavljaju završni dio istraživanja
Map view restoration of Aegean–West Anatolian accretion and extension since the Eocene
No full textThe Aegean region (Greece, western Turkey) is one of the best studied continental extensional provinces. Here, we provide the first detailed kinematic restoration of the Aegean region since 35 Ma. The region consists of stacked upper crustal slices (nappes) that reflect a complex paleogeography. These were decoupled from the subducting African-Adriatic lithospheric slab. Especially since !25 Ma, extensional detachments cut the nappe stack and exhumed its metamorphosed portions in metamorphic core complexes. We reconstruct up to 400 km of trench-perpendicular (NE-SW) extension in two stages. From 25 to 15 Ma, the Aegean forearc rotated clockwise relative to the Moesian platform around Euler poles in northern Greece, accommodated by extensional detachments in the north and an inferred transfer fault SE of the Menderes massif. The majority of extension occurred after 15 Ma (up to 290 km) by opposite rotations of the western and eastern parts of the region. Simultaneously, the Aegean region underwent up to 650 km of post-25 Ma trench-parallel extension leading to dramatic crustal thinning on Crete. We restore a detachment configuration with the Mid-Cycladic Lineament representing a detachment that accommodated trench-parallel extension in the central Aegean region. Finally, we demonstrate that the Sakarya zone and Cretaceous ophiolites of Turkey cannot be traced far into the Aegean region and are likely bounded by a pre-35 Ma N-S fault zone. This fault became reactivated since 25 Ma as an extensional detachment located west of Lesbos Island. The paleogeographic units south of the Izmir-Ankara-Sava suture, however, can be correlated from Greece to Turkey
