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The rapid proliferation of internet‐connected devices has transformed our daily habits prompting a shift towards greater sustainability in renewable energy for indoor applications. Among the various technologies available for obtaining energy in indoor conditions, Dye‐Sensitized Solar Cells (DSSCs) stand out as the most promising due to their ability to efficiently convert ambient light into usable electricity. This study explores how the optimal matching of the UV‐Vis absorption spectra of dyes commonly used in DSSCs with the emission profiles of indoor lamps allows for the enhanced efficiency of DSSC under indoor lighting. By testing four organic dyes with different UV‐Vis absorption spectra (L1, Y123, S1, and TP1) under two different common indoor light sources (OSRAM 930 and OSRAM 765 lamp), a significant dye‐lamp correlation was demonstrated. Notably, low‐priced dyes like S1 and TP1, characterized by easier synthetic routes and with an optimal overlap with the dye‐lamp spectrum, exhibited competitive efficiencies, narrowing the performance gap with high‐performing dyes like Y123, which require more demanding preparation approaches. The study highlights the critical importance of tailoring dye selection to specific indoor lighting environments, addressing a significant gap and paving the way for more sustainable and cost‐effective energy solutions for indoor applications. The study highlights the importance of matching dye and light source in optimizing the DSSCs performance under indoor lighting. Improved efficiency is observed when dyes with UV‐Vis spectra match the specific optical characteristics of the light source. The simpler, cost‐effective dye TP1 demonstrated an excellent cost‐performance balance, suggesting that optimal matching allows for high DSSC efficiency while maintaining affordable synthetic accessibility.

LHCb is one of the four main experiments operating at the LHC and it is dedicated to measurements of CP violation and to the search for new physics beyond Standard Model in the rare decays of hadrons containing heavy quarks. LHCb is currently undergoing a major upgrade in order to increase the operating luminosity to 2 × 10 33 cm -2 sec -1 from the start of Run 3 in 2022. The strategy of reading out the detectors at the full rate of 40 MHz without a hardware trigger requires a complete renewal of the data acquisition system.

Wastewaters from household appliances, such as dishwashers and washing machines, are an untapped resource of recoverable water and/or nutrients. The Zero Mile system has been developed to reuse/upcycle dishwasher wastewaters through bioremediation activity carried out by an ad hoc engineered phototrophic/heterotrophic microbial consortium. The choice of both suitable microorganisms for engineering consortia and detailed knowledge on their structure, behaviour and interaction are essential to optimising consortium culture conditions and drive the biofilter container design (structure and topology). To these aims, the effect of abiotic conditions (i.e., irradiance, pH and organic load) on the microbial consortium growth and its capability to survive and thrive in different dishwasher wastewater dilutions have been evaluated. At the same time, the crucial interplay between biological and design research has allowed us to define the characteristics of the biofilter container and plan its development for the industrial application of the Zero Mile system, bringing sustainability benefits as it moves household wastewater from a traditional linear model to a more sustainable, circular approach.

Among the emerging photovoltaic (PV) technologies, Dye-Sensitized Solar Cells (DSSCs) appear especially interesting in view of their potential for unconventional PV applications. In particular, DSSCs have been proven to provide excellent performances under indoor illumination, opening the way to their use in the field of low-power devices, such as wearable electronics and wireless sensor networks, including those relevant for application to the rapidly growing Internet of Things technology. Considering the low intensity of indoor light sources, efficient light capture constitutes a pivotal factor in optimizing cell efficiency. Consequently, the development of novel dyes exhibiting intense absorption within the visible range and light-harvesting properties well-matched with the emission spectra of the various light sources becomes indispensable. In this review, we will discuss the current state-of-the-art in the design, synthesis, and application of organic dyes as sensitizers for indoor DSSCs, focusing on the most recent results. We will start by examining the various classes of individual dyes reported to date for this application, organized by their structural features, highlighting their strengths and weaknesses. On the basis of this discussion, we will then draft some potential guidelines in an effort to help the design of this kind of sensitizer. Subsequently, we will describe some alternative approaches investigated to improve the light-harvesting properties of the cells, such as the co-sensitization strategy and the use of concerted companion dyes. Finally, the issue of measurement standardization will be introduced, and some considerations regarding the proper characterization methods of indoor PV systems and their differences compared to (simulated) outdoor conditions will be provided.

The first observation of the B-s(0) -> D*+ D*- decay and the measurement of its branching ratio relative to the B-0 -> D*+ D*(-) decay are presented. The data sample used corresponds to an integrated luminosity of 9 fb(-1) of proton-proton collisions recorded by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV between 2011 and 2018. The decay is observed with more than 10 standard deviations and the time-integrated ratio of branching fractions is determined to be [GRAPHICS] . where the first uncertainty is statistical, the second systematic and the third due to the uncertainty of the fragmentation fraction ratio f(s)/f(d). The B-s(0) -> D*(+) D*(-) branching fraction is calculated to be [GRAPHICS] . where the fourth uncertainty is due to the B-0 -> D*(+) D*(-) branching fraction. These results are calculated using the average B-s(0) meson lifetime in simulation. Correction factors are reported for scenarios where either a purely heavy or a purely light B-s(0) eigenstate is considered.

Two novel organic sensitizers for Dye-Sensitized Solar Cells (DSSC), called TP1 and TP2, based on the electron-poor thieno[3,4-b]pyrazine (TPz) π-bridge and the electron-rich N,N-bis(4-(hexylthio)phenyl)aniline (TPA) were designed following two different approaches: the classical D-A-π-A design and a symmetric structure with double anchoring functions. Both compounds were prepared exploiting short synthetic pathways based on direct arylation strategies and possibly one-pot desymmetrization. The two novel dyes displayed opposite optical properties: a broad and intense light absorption over the entire visible spectrum for TP1, and a localized absorption that peaked in the center of the visible region for TP2, resulting in a pitch-dark coloration and a green tone, respectively. When assembling the photovoltaic devices, different electrolyte compositions were explored to enhance the optical properties of the dyes. Power conversion efficiencies as high as 5.2% under full sun intensity were recorded for small test devices. The composition of the light transmitted through the TP2-containing transparent DSSC fits well with the human eye sensitivity spectrum, thus fulfilling the transparency requirements for building-integrated photovoltaics (BIPV).

Quantum chromodynamics, the theory of the strong force, describes interactions of coloured quarks and gluons and the formation of hadronic matter. Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. Particles with an alternative quark content are known as exotic states. Here a study is reported of an exotic narrow state in the D $^{0}$ D $^{0}$ π $^{+}$mass spectrum just below the D $^{*+}$ D $^{0}$mass threshold produced in proton-proton collisions collected with the LHCb detector at the Large Hadron Collider. The state is consistent with the ground isoscalar${{{\\rm{T}}}_{{{\\rm{c}}}{{{\\rm{c}}}^{+}$tetraquark with a quark content of${{{\\rm{c}}}{{{\\rm{c}}}\\overline{{{\\rm{u}}}\\overline{{{\\rm{d}}}$and spin-parity quantum numbers J $^{P}$  = 1 $^{+}$ . Study of the DD mass spectra disfavours interpretation of the resonance as the isovector state. The decay structure via intermediate off-shell D $^{*+}$mesons is consistent with the observed D $^{0}$ π $^{+}$mass distribution. To analyse the mass of the resonance and its coupling to the D $^{*}$ D system, a dedicated model is developed under the assumption of an isoscalar axial-vector${{{\\rm{T}}}_{{{\\rm{c}}}{{{\\rm{c}}}^{+}$state decaying to the D $^{*}$ D channel. Using this model, resonance parameters including the pole position, scattering length, effective range and compositeness are determined to reveal important information about the nature of the${{{\\rm{T}}}_{{{\\rm{c}}}{{{\\rm{c}}}^{+}$state. In addition, an unexpected dependence of the production rate on track multiplicity is observed.

The cross-sections of$\\psi(2S)$meson production in proton-proton collisions at$\\sqrt{s}=13~\\mathrm{TeV}$are measured with a data sample collected by the LHCb detector corresponding to an integrated luminosity of$275~p\\mathrm{b}^{-1}$ . The production cross-sections for prompt$\\psi(2S)$mesons and those for$\\psi(2S)$mesons from$b$ -hadron decays ( $\\psi{(2S)}\\mathrm{-from-}b$ ) are determined as functions of the transverse momentum,$p_{\\mathrm{T}}$ , and the rapidity,$y$ , of the$\\psi(2S)$meson in the kinematic range$2

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