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Permian-Triassic boundary interval in the Middle East (Iran and N. Oman) : Progressive environmental change from detailed carbonate carbon isotope marine curve and sedimentary evolution
The end Permian negative δ13C excursion is well known but its cause and chronology are still in question. In an attempt to decipher the timing and reasons for this strong decrease, we established high-resolution sedimentological, biostratigraphical and carbonate carbon isotopic studies in four sections in Iran (Abadeh, Shareeza, Zal and Djulfa) and two in Oman (Wadi Sahtan). The position of the se
Evidence of Gaia Enceladus Experiencing at Least Two Passages around the Milky Way
One of the major recent breakthroughs has been the discovery of the last major merger to happen in the history of the Milky Way. Around 10 Gyr ago, the galaxy Gaia Enceladus with an estimated ∼10% of the Milky Way mass, fell into the potential of our Galaxy, bringing a large amount of stars that can be identified through their unique chemical and kinematic signatures. Simulations have long predict
Lower Triassic δ13C isotope curve from shallow-marine carbonates in Japan, Panthalassa realm : Confirmation of the Tethys δ13C curve
δ13C data from Tethyan sections provide evidence of profound changes in the carbon cycle during the Lower Triassic. Sections from the Panthalassa realm were investigated to establish whether these variations are also present there. In the Jurassic accretionary wedges in Japan, exotic blocks having a Panthalassan affinity, have been incorporated. The majority of the blocks are pelagic cherts but ra
Lower Triassic sulphur isotope curve of marine sulphates from the Dolomites, N-Italy
6 evaporite samples from the latest Permian to the late Lower Triassic have been sampled at marine carbonate sections in the Southern Alps. The sulphur isotope ratio of the sulphate has been determined to learn about the changes of the marine δ34S ratio during the investigated period, as it is known from the literature that a profound change from depleted to heavily enriched δ34S values occurred w
Words of Civilization : Emergence and Productivity of Latin Terminologies until the Eve of Humanism
Time Is Not Everything : Spatial Segregation of Nests in Nocturnal and Diurnal Carpenter Bees
Evolutionary transitions to nocturnality in bees are rare and recent, occurring independently across several families, with activity ranging from crepuscular to strictly nocturnal. Although the “enemy-free” and “competition-free space” hypotheses are often suggested as drivers, these remain little explored in bees. In sympatric diurnal and nocturnal carpenter bees, we show that in addition to temp
Postnatal development in the cold render bird mitochondria more susceptible to heat stress
Research on birds suggests that extreme weather events during development may have long-lasting consequences on form and function. The underlying cellular mechanisms mediating such phenotypic effects are poorly studied. We raised Japanese quail in warm (30°C) or cold (10°C) temperatures from hatching until adulthood and then measured mitochondrial metabolism in intact blood cells at representative
Effects of the choice of the continuous phase in droplet microfluidics on internal particle manipulation with acoustophoresis
In this work, we have studied how the choice of the continuous phase oils affects droplet-internal acoustic manipulation and mapped the acoustic properties of the selected oils to evaluate their compatibility with droplet acoustofluidic methods. The selection of continuous phase included hydrocarbon, fluorinated, and silicone oils. To map the acoustic properties of the oils, we measured their spee
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Very few data on Early Triassic marine ostracods are available. In most of cases, the data concern the upper part of the Early Triassic. The çürük dağ section, located in the Western Taurides (Turkey), well stratigraphically constrained by conodonts and foraminifera, has been re-sampled for ostracod study. A significant fauna has been discovered in the Late Permian and the levels of the Earliest T
Alpha-synuclein seed amplification assay longitudinal outcomes in Lewy body disease spectrum
Evidence from neuropathological cohorts indicates that a CSF α-synuclein (α-syn) seed amplification assay (SAA) might provide quantitative kinetic parameters correlating with α-syn pathology burden in patients with Lewy body disease (LBD). Studies are needed to assess their longitudinal trend during the presymptomatic and clinical disease phases and their correlation with measures of disease progr
Forming the local starburst galaxy Haro 11 through hydrodynamical merger simulations
Haro 11 is a metal-poor, starburst galaxy believed to be the result of an ongoing merger, which is shaping the properties of the galaxy. In this study, we carry out a large suite of numerical simulations of a merger between two disc galaxies, to study possible origins of Haro 11 and understand under which conditions various features of the galaxy are formed. By varying galaxy parameters describing
Quality of hospital and follow-up care among patients with type 2 diabetes and newly diagnosed cardiovascular disease : A cohort study in Sweden
Objective To examine hospital discharge practices, including clinical and laboratory assessments, in patients with type 2 diabetes mellitus (T2DM) following their first hospitalisation for cardiovascular disease (CVD), and to explore the association of these practices with adverse events, defined as hospital readmission, emergency department visits and mortality. Design Retrospective cohort study.
Neuromorphic Readout for Hadron Calorimeters
We simulate hadrons impinging on a homogeneous lead tungstate ((Formula presented.)) calorimeter using GEANT4 software to investigate how the resulting light yield and its temporal structure, as detected by an array of light-sensitive sensors, can be processed by a neuromorphic computing system. Our model encodes temporal photon distributions as spike trains and employs a fully connected spiking n
A practical roadmap for the digital transformation of urban water systems – using insights from a Swedish utility to chart the path forward
Urban water systems are facing growing challenges, including climate change and aging assets. Digital transformation presents opportunities to address these issues. However, water utilities often encounter barriers such as fragmented initiatives, organizational inertia, and lack of systems interoperability, limiting the scalability and impact of digitalization efforts. This paper presents a strate
A new species of Begonia L. (Begoniaceae) and some notes on Begonia difformis from Kachin, northern Myanmar
The new species Begonia dicressine (sp. nov.) belonging to Begonia section Platycentrum is described. The new species is similar to B. rockii but differs in having petioles with long soft white hairs, plain dark green leaves with irregularly crenate margins, lower surface only with appressed hairs along midrib, and glabrous inflorescences. B. dicressine is distributed in Kachin Province in norther
Evidence for recurrent changes in Lower Triassic oceanic circulation of the Tethys : The δ13C record from marine sections in Iran
Stable carbon isotope curves derived from Lower Triassic carbonate rocks from three Iranian sections are established to investigate changes in the carbon cycle during the Early Triassic in this area. The sections are located in the south-center (Abadeh), north (Amol), and northwest (Zal) of Iran. All three curves show a similar pattern starting out with high δ13C values in the uppermost Permian de
Hybrid Nature of Metastable Nonradiative Recombination Centers in Perovskites : Merging Shallow and Deep Defect States
Metastable nonradiative centers (supertraps) are significant energy loss channels in perovskite optoelectronic devices. In their active state, supertraps induce substantial energy loss through nonradiative recombination of free charge carriers. Transitions between active (energy loss) and passive (no energy loss) states result in photoluminescence (PL) blinking on timescales from milliseconds to s
Non-invasive tape sampling of tryptophan and kynurenine in relation to phenylalanine and tyrosine from melanoma and adjacent non-lesional skin : A pilot study
Purpose To evade immunosurveillance many cancers convert tryptophan (Trp) into kynurenine (Kyn), which induces immunotolerance and suppresses immune responses. Elevated Kyn amounts have been found in blood from patients with cutaneous melanoma. This study aimed to investigate whether higher Kyn abundance and lower Trp abundance can be detected on the surface of cutaneous melanoma lesions compared
The schandelah scientific drilling project : A 25-million year record of early jurassic palaeoenvironmental change from northern Germany
With the aim to understand prolonged and repeated marine anoxia after the Triassic-Jurassic massextinction event, a continuously cored, 338 metre thick succession of Rhaetian to Toarcian sediments was retrieved close to the village of Schandelah near Braunschweig (Lower Saxony, northern Germany). Here, preliminary biostratigraphical, lithological, sedimentological, geochemical, and geophysical bor
