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Discovery of Cis-Regulatory Mechanisms via Non-Coding Mutations in Acute Lymphoblastic Leukemia

The non-coding genome, constituting 98% of human DNA, remains largely unexplored, yet holds potential for identifying new biomarkers and therapeutic targets in acute lymphoblastic leukemia (ALL). In this study, we conducted a systematic analysis of recurrent somatic non-coding single nucleotide variants (SNVs) in pediatric B-cell precursor (BCP) ALL. We leveraged whole genome sequencing (WGS) data

A comprehensive approach to the study of plesiosaurs: paleobiology, paleophysiology, and phylogeny

Plesiosaurs are charismatic marine reptiles of the Mesozoic Era. Life-like reconstructions of long-necked forms are typically ‘shrink-wrapped’ with a narrow, snake-like neck and a sea turtle-like body; a depiction that has changed little since the initial discovery of plesiosaurs over 200 years ago. Despite their long geological history and importance in founding paleontology as a scientific disci

Heat Operators and Isometry Groups of Cuntz–Krieger Algebras

This paper introduces heat semigroups of topological Markov chains and Cuntz–Krieger algebras by means of spectral noncommutative geometry. Using recent advances on the logarithmic Dirichlet Laplacian on Ahlfors regular metric-measure spaces, we construct spectral triples on Cuntz–Krieger algebras from singular integral operators. These spectral triples exhaust odd K-homology and for Cuntz algebra

Exciton dynamics in the light-harvesting complexes of Rhodobacter sphaeroides

We have used ≈ 40 fs pulses from a Ti:Sa laser to investigate the ultrafast energy transfer and relaxation dynamics in the LH1 and LH2 light-harvesting pigment-proteins of photosynthetic purple bacteria. Our results reveal a new feature, not earlier observed in light-harvesting pigments, ultrafast relaxation characterized by a time constant of approximately 20 fs, which we interpret as interexcito

Directed picosecond excitation transport in purple photosynthetic bacteria

Picosecond spectrally resolved fluorescent measurements together with the coupled kinetic rate equation model simulations of the data have been employed to determine the rates and pathways of heterogeneous excitation transport in the membranes of photosynthetic bacteria Rhodobacter sphaeroides and Chromatium minutissimum. Excitation transport from bacteriochlorophyll molecules B800 to B850, belong

Fluorescence and absorption spectroscopy of the weakly fluorescent chlorophyll a in cytochrome b6f of Synechocystis PCC6803

A spectroscopic characterization of the chlorophyll a (Chl) molecule in the monomeric cytochrome b6f complex (Cytb6f) isolated from the cyanobacterium Synechocystis PCC6803 is presented. The fluorescence lifetime and quantum yield have been determined, and it is shown that Chl in Cytb6f has an excited-state lifetime that is 20 times smaller than that of Chl in methanol. This shortening of the Chl

Electron-phonon coupling in the B820 subunit form of LH1 studied by temperature dependence of optical spectra

The temperature dependence of absorption and selectively excited fluorescence spectra of B820 subunit of the bacterial light-harvesting antenna is modelled by using the impurity center theory ofoptical spectra. In order toget acceptable agreement between theory and experiment, we suggest that due to the dimeric nature of B820, the electronic transition is weakly coupled to a rather broad distribut

Picosecond fluorescence of simple photosynthetic membranes : Evidence of spectral inhomogeneity and directed energy transfer

The picosecond time-domain singlet excitation transfer and trapping kinetics in photosynthetic membranes in case of low excitation intensities is studied by numerical integration of the appropriate master equation. The essential features of our two-dimensional-lattice random walk model are spectral heterogeneity of the light-harvesting antenna, inclusion of temperature effects, nonabsolute excitat

Electron-phonon coupling and vibronic fine structure of light-harvesting complex II of green plants : Temperature dependent absorption and high-resolution fluorescence spectroscopy

Polarized, site-selected fluorescence was measured for light-harvesting complex II (LHCII), the major Chl a/b/xanthophyll binding light-harvesting complex of green plants. Upon selective excitation in the range of 679-682 nm at 4 K, separate zero-phonon lines and phonon wings could be observed, as well as sharp lines in the vibronic region of the emission: vibronic zero-phonon lines. The maximum o

Microcavity-enhanced exciton dynamics in light-harvesting complexes : Insights from Redfield theory

We investigated the exciton transfer dynamics in photosynthetic light-harvesting complex 2 (LH2) coupled to an optical microcavity. Using computational simulations based on Redfield theory, we analyzed how microcavity coupling influences energy relaxation and transfer within and between LH2 aggregates. Our results show that the exciton transfer rate between B850 rings follows a square dependence o

Temperature dependence of electron-vibronic spectra of photosynthetic systems. Computer simulations and comparison with experiment

Absorption bands of photosynthetic and other biological pigment-protein complexes undergo dramatic variations in position and shape upon changing the temperature. In this paper we have reviewed a calculation algorithm to simulate the temperature dependence of electronic spectra coupled to any number of vibrations with arbitrary coupling strength. A number of computer simulations is carried out in

Truth negotiations behind legal ethical demands – what do we talk about? : A reply to professor Rick Abel

This article critically examines the role of lawyers in addressing the complex legal and ethical challenges posed by climate change, as highlighted in Professor Abel's work. It explores the intricate interplay between evolving knowledge paradigms and the democratic processes that lawyers must navigate when confronting environmental issues. Central to the discussion is the need for a clear ethical

Boussinesq's equation for water waves : the soliton resolution conjecture for Sector IV

We consider the Boussinesq equation on the line for a broad class of Schwartz initial data relevant for water waves. In a recent work, we identified ten main sectors describing the asymptotic behavior of the solution, and for each of these sectors we gave an exact expression for the leading asymptotic term in the case when no solitons are present. In this paper, we derive an asymptotic formula in

Sedimentary vanadium depletion under sulfidic conditions : Implications for (paleo)redox proxy applications

Sedimentary concentrations of redox-sensitive trace metals are widely used to reconstruct past ocean redox conditions. Vanadium (V) has great potential as a (paleo)redox proxy, due to its strong redox-dependent speciation (+III, +IV, +V) and the increased sedimentary sequestration of its more reduced species. The geochemistry of V in sulfide-rich marine environments is not yet well understood, how

Labour and social protection gaps impacting the health and well-being of workers in non-standard employment : An international comparative study

Background World economies increasingly rely on non-standard employment arrangements, which has been linked to ill health. While work and employment conditions are recognized structural determinants of health and health equity, policies aiming to protect workers from negative implications predominantly focus on standard employment arrangements and the needs of workers in non-standard employment ma

Comparison of the C-REX LapAid and Circular Stapled Colorectal Anastomoses in an Experimental Model

The rate of colorectal anastomotic leakage has remained unchanged for the last decades. The limitations of current anastomotic methods have generated an interest in alternative anastomotic techniques, such as compression anastomosis. The aim of this experimental study was to evaluate the early mechanical strength in left colonic anastomoses, comparing C-REX LapAid and circular stapled anastom

Manner Affixes and Event Decomposition

This paper investigates how verbal affixes that encode manner information (manner affixes) interact with verbs of different lexical aspect classes and transitivity values in West Greenlandic (Inuit–Yupik–Unangan: Greenland). Manner affixes remain an understudied and poorly understood grammatical category. The data presented and discussed here is primarily based on original fieldwork conducted in C

MYOSLID : A Critical Modulator of Cancer Hallmarks

Despite being the leading cause of death worldwide, cancer still lacks precise biomarkers for effective targeting, limiting efforts to reduce mortality rates. This review explores the role and clinical significance of a newly identified long non-coding RNA, MYOSLID, in cancer progression. MYOSLID has emerged as a critical modulator in cancer progression by influencing key hallmarks such as prolife

Bioengineering the Future : Tomato Peel Cutin as a Resource for Medical Textiles

The exponential increase in medical waste production has increased the difficulty of waste management, resulting in higher medical waste dispersion into the environment. By employing a circular economy approach, it is possible to develop new materials by waste valorization. The employment of biodegradable and renewable agro-food, waste-derived materials may reduce the environmental impact caused b