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Using ultra-broadband transient terahertz (THz) spectroscopy, complemented by transient absorption (TA) and photoluminescence (PL) measurements, we directly track the generation and relaxation of photoexcited hot carriers, as well as the ultrafast formation of excitons in the transition metal phosphorus trichalcogenide NiPS3, with a temporal resolution of sub-100 fs. A subset of excitons exhibits
Accurate prediction of groundwater levels (GWL) is essential for effective and sustainable water resource management, particularly in arid and semiarid regions where excessive extraction and climate change significantly accelerate aquifer depletion. The nonstationary characteristics of groundwater data pose significant challenges to the performance and reliability of conventional machine learning
Three plant researchers describe in this book how plants emerged via the fusion of several different types of simple prokaryotic organisms and, through algae, evolved into land plants. During their evolution, they survived global ice ages, violent volcanic eruptions, and collisions with celestial bodies. The authors follow the development of landplants along various paths- some of which have ended
A 47-year-old woman with metastatic pancreatic adenocarcinoma, diagnosed five months earlier and treated with palliative chemotherapy, was admitted with fever, jaundice, and right upper quadrant pain consistent with ascending cholangitis. Treatment with antibiotics was initiated and an endoscopic retrograde cholangiography was performed, whereby a biliary stent was placed to relieve malignant bili
Objectives: SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss-of-function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes. Here we describe a novel dominant variant in SLC4A4 in patients wit
Background: T cell receptor (TCR) binding properties have been related to a wide range of pathological conditions, including infections, autoimmunity and cancer. Characterising the TCR repertoire is of great biomedical interest but it has been challenging due to its high structural diversity. Methods: In situ sequencing (ISS) is a suitable technique for spatial cell typing and linking gene pattern
Osteoarthritis (OA)-related meniscal degeneration involves complex interactions between oxidative stress and proteasomal dysfunction. However, the molecular drivers of regional meniscal vulnerability remain poorly defined. This study integrated multiple transcriptomic datasets from OA and control menisci to identify functional networks and hub genes by using weighted gene co-expression network ana
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
The dissociation of NO is a critical step in its catalytic reduction to N2, which is key to automotive exhaust treatment. Here, we examine the role of Rh atomic steps in the NO dissociation reaction under 0.05 mbar NO. We use a Rh crystal sample curved around the (111) direction and ambient-pressure X-ray photoelectron spectroscopy to probe different Rh surfaces subject to the very same reaction c
OBJECTIVES: We assessed the prevalence of neurodevelopmental disabilities (NDDs; cognition, cerebral palsy, vision/hearing, epilepsy), attention deficit hyperactivity disorder (ADHD), autism spectrum disorder (ASD), developmental coordination disorder (DCD), behavior problems, and multimorbidity in a national cohort of children born extremely preterm (EPT, <27-week gestation) to provide a comprehe
The purpose of this short report is to introduce a branching random walk in random environment on $Z^d$ where particles perform independent simple random walks and branch according to a law that is obtained by fixing branching numbers at each point of $Z^d$. These numbers represent a realization of an integer-valued random field on $Z^d$ with the value at each point being independent of those at o
In this paper we study random walks with branching. We introduce the notion of recurrence and transience for these processes and provide criteria for them. For Lamperti problem and many-dimensional random walk with branching we nd the critical (for transience vs. recurrence) speed of decaying of the average number of o -springs at a point with respect to the distance from it to the origin.
We investigate the ecological and evolutionary variables that best explain spatial diversity patterns of anuran amphibians in three of South America's most diverse and geographically widespread biomes: the Cerrado, Amazonia, and Atlantic Rainforest. We used Conditional Autoregressive Models to assess the potential influence of present-day climate (temperature and precipitation), historical climate
Vertex-reinforced random walk (VRRW), defined by Pemantle, is a random process in a continuously changing environment which is more likely to visit states it has visited before. We consider VRRW on arbitrary graphs and show that on almost all of them, VRRW visits only finitely many vertices with a positive probability. We conjecture that on all graphs of bounded degree, this happens with probabili
A stochastic process called vertex-reinforced random walk (VRRW) is defined in Pemantle [Ann. Probab. 16 1229-1241]. We consider this process in the case where the underlying graph is an infinite chain (i.e., the one-dimensional integer lattice). We show that the range is almost surely finite, that at least five points are visited infinitely often almost surely and that with positive probability t
We study the continuous time integer valued process Xt, t ≥ 0, which jumps to each of its two nearest neighbors at the rate of one plus the total time the process has previously spent at that neighbor. We show that the proportion of the time before t which this process spends at integers j converges to positive random variables Vj, which sum to one, and whose joint distribution is explicitly descr
Abstract in French Depuis la conception du « regard des autres » par Jean-Paul Sartre (1943), le regard a revêtu de nombreuses formes : le regard masculin, le regard blanc, le regard impérial, le regard postcolonial. Tous impliquent un pouvoir d’objectiver, de définir un Autre. Une quarantaine d’années après Sartre, Donna Haraway a décrit le concept d’objectivité comme « un regard conquérant venu
Since Jean-Paul Sartre’s conception of le regard des autres in 1943, ‘the gaze’ has taken on many manifestations. The male gaze, the white gaze, the imperial gaze, the postcolonial gaze. All imply a power to objectify, to define an Other, usually from a distance or even, as Donna Haraway described objectivity, from 'nowhere.' Museums have always held the power to define Others while claiming objec
Rivers play a fundamental role in shaping the Earth’s surface and sustaining ecosystems. Accurate modeling and simulation of stream power are essential for understanding fluvial processes. As a measure of the energy exerted by overland flow, stream power possesses both magnitude and directional attributes. However, conventional simulation approaches based on scalar operations often neglect the dir
