cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Feasibility Study of $D_s^+ \to τ^+ ν_τ$ Decay and Test of Lepton Flavor Universality with Leptonic $D_s^+$ Decays at STCF
Creators: name: Li, Huijing
name: Luo, Tao
name: Shi, Xiaodong
name: Zhou, Xiaorong
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report a sensitive study of $D_s^+ \to τ^+ ν_τ$ decay via $τ^+ \to e^+ ν_e \barν_τ$ with an integrated luminosity of 1 ab$^{-1}$ at the center-of-mass energy of $4.009$ GeV at a future Super Tau Charm Facility (STCF). Under the help of the fast simulation software package, the statistical sensitivity for the absolute branching fraction of $D_s^+ \to τ^+ ν_τ$ is determined to be $2\times10^{-4}$. Combining with our previous prospect of $D_s^+ \to μ^+ ν_μ$, the ratio of the branching fractions for $D_s^+ \to τ^+ ν_τ$ over $D_s^+ \to μ^+ ν_μ$ can achieve a relative statistical precision of 0.5%, which will provide the most stringent test of the $τ$-$μ$ lepton flavor universality in heavy quark decays. Taking the decay constant $f_{D_s^+}$ from lattice QCD calculations or the CKM matrix element $|V_{cs}|$ from the CKMfitter group as an input, the relative statistical uncertainties for $|V_{cs}|$ and $f_{D_s^+}$ are estimated to be 0.3% and 0.2%, respectively.
description: 9 pages, 3 figures
Late-Holocene palaeoenvironmental changes from the Gulf of Gaeta
Creators: name: Federico, Di Rita
name: Margaritelli Giulia
name: Vallefuoco Mattia
name: Capotondi, Lucilla
name: Bellucci Luca Giorgio
name: Insinga Donatella
name: Petrosino Paola
name: Bonomo Sergio
name: Cacho Isabella
name: Cascella Antonio
name: Ferraro Luciana
name: Fabio, Florindo
name: Lubritto Carmine
name: Lurcock P.C
name: Magri Donatella
name: Pelosi Nicola
name: Rettori Roberto
Publisher: name: figshare
Year: 2017
Subjects: Paleoclimatology

description: A new high resolution pollen, planktonic foraminiferal and oxygen isotopes record from a shallow
water marine sedimentary core from the central Tyrrhenian Sea (Gulf of Gaeta) provides information
on vegetation and climate changes occurred in the central Mediterranean region during the last 5000
cal. years BP (Margaritelli et al., 2016). Nine time intervals characterized by clear vegetation and
climate changes and associated with archaeological/cultural periods have been described: Eneolithic
(ca. 3080- ca. 2410 BC), Early Bronze Age (ca. 2410 BC–ca. 1900 BC), Middle Bronze Age-Iron Age (ca.
1900 BC–ca. 500 BC), Roman Period (ca. 500 BC–ca. 550 AD), Dark Age (ca. 550 AD–ca. 860 AD),
Medieval Climate Anomaly (ca. 860 AD–ca. 1250 AD), Little Ice Age (ca. 1250 AD–ca. 1850 AD),
Industrial Period (ca. 1850 AD–ca. 1950 AD), Modern Warm Period (ca. 1950 AD–present day). In this
paper we aim to characterize the major vegetation changes influenced by climate and human impact.
Reduced astrocyte density underlying brain volume reduction in activity-based anorexia rats
Creators: name: Frintrop, Linda
name: Liesbrock, Johanna
name: Paulukat, Lisa
name: Johann, Sonja
name: Kas, Martien J.
name: Tolba, Rene
name: Heussen, Nicole
name: Neulen, Joseph
name: Konrad, Kerstin
name: Herpertz-Dahlmann, Beate
name: Beyer, Cordian
name: Seitz, Jochen
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Objectives: Severe grey and white matter volume reductions were found in patients with anorexia nervosa (AN) that were linked to neuropsychological deficits while their underlying pathophysiology remains unclear. For the first time, we analysed the cellular basis of brain volume changes in an animal model (activity-based anorexia, ABA). Methods: Female rats had 24 h/day running wheel access and received reduced food intake until a 25% weight reduction was reached and maintained for 2 weeks. Results: In ABA rats, the volumes of the cerebral cortex and corpus callosum were significantly reduced compared to controls by 6% and 9%, respectively. The number of GFAP-positive astrocytes in these regions decreased by 39% and 23%, total astrocyte-covered area by 83% and 63%. In neurons no changes were observed. The findings were complemented by a 60% and 49% reduction in astrocyte (GFAP) mRNA expression. Conclusions: Volumetric brain changes in ABA animals mirror those in human AN patients. These alterations are associated with a reduction of GFAP-positive astrocytes as well as GFAP expression. Reduced astrocyte functioning could help explain neuronal dysfunctions leading to symptoms of rigidity and impaired learning. Astrocyte loss could constitute a new research target for understanding and treating semi-starvation and AN.
Additional file 1: of Multi-cohort analysis of colorectal cancer metagenome identified altered bacteria across populations and universal bacterial markers
Creators: name: Dai, Zhenwei
name: Coker, Olabisi
name: Nakatsu, Geicho
name: Wu, William
name: Zhao, Liuyang
name: Chen, Zigui
name: Chan, Francis
name: Kristiansen, Karsten
name: Sung, Joseph
name: Wong, Sunny
name: Yu, Jun
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Developmental Biology
subject: Marine Biology
subject: Cancer

description: Figure S1. (A) Shannon diversities of control and CRC samples in each cohort. (B) Combining the normalized Shannon diversity of all the control and CRC samples. The Shannon diversity was normalized to mean = 0 and standard deviation = 1. (PDF 606 kb)
Magnetic field induced transition from a vortex liquid to Bose metal in ultrathin a-MoGe thin film
Creators: name: Dutta, Surajit
name: Jesudasan, John
name: Raychaudhuri, Pratap
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We identify a magnetic field induced transition from a vortex liquid to Bose metal in a 2-dimensional amorphous superconductor, a-MoGe, using a combination of magnetotransport and scanning tunnelling spectroscopy (STS). Below the superconducting transition, Tc ~ 1.36 K, the magnetoresistance isotherms cross at a nearly temperature independent magnetic field, H_c^*~ 36 kOe. Above this field, the temperature coefficient of resistance is weakly negative, but the resistance remains finite as T --> 0, as expected in a bad metal. From STS conductance maps at 450 mK we observe a very disordered vortex lattice at very low fields that melts into a vortex liquid above 3 kOe. Up to H_c^* the tunnelling spectra display superconducting gap and coherence peak over a broad background caused by electron-electron interactions, as expected in a vortex liquid. However, above H_c^* the tunnelling spectra continue to display the gap but the coherence peak gets completely suppressed, suggesting that Cooper pairs lose their phase coherence. We conclude that H_c^* demarcates a transition from a vortex liquid to Bose metal, that eventually transforms to a regular metal at a higher field H* where the gap vanishes in the electronic spectrum.
description: Figure 2 updated
Statistical learning of engineered topological phases in the kagome superlattice of AV$_3$Sb$_5$
Creators: name: Mertz, Thomas
name: Wunderlich, Paul
name: Bhattacharyya, Shinibali
name: Ferrari, Francesco
name: Valentí, Roser
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent experimental findings have reported the presence of unconventional charge orders in the enlarged ($2 \times 2$) unit-cell of kagome metals AV$_3$Sb$_5$ (A=K,Rb,Cs) and hinted towards specific topological signatures. Motivated by these discoveries, we investigate the types of topological phases that can be realized in such kagome superlattices. In this context, we employ a recently introduced statistical method capable of constructing topological models for any generic lattice. By analyzing large data sets generated from symmetry-guided distributions of randomized tight-binding parameters, and labeled with the corresponding topological index, we extract physically meaningful information. We illustrate the possible real-space manifestations of charge and bond modulations and associated flux patterns for different topological classes, and discuss their relation to present theoretical predictions and experimental signatures for the AV$_3$Sb$_5$ family. Simultaneously, we predict new higher-order topological phases that may be realized by appropriately manipulating the currently known systems.
Reduced astrocyte density underlying brain volume reduction in activity-based anorexia rats
Creators: name: Frintrop, Linda
name: Liesbrock, Johanna
name: Paulukat, Lisa
name: Johann, Sonja
name: Kas, Martien J.
name: Tolba, Rene
name: Heussen, Nicole
name: Neulen, Joseph
name: Konrad, Kerstin
name: Herpertz-Dahlmann, Beate
name: Beyer, Cordian
name: Seitz, Jochen
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Objectives: Severe grey and white matter volume reductions were found in patients with anorexia nervosa (AN) that were linked to neuropsychological deficits while their underlying pathophysiology remains unclear. For the first time, we analysed the cellular basis of brain volume changes in an animal model (activity-based anorexia, ABA). Methods: Female rats had 24 h/day running wheel access and received reduced food intake until a 25% weight reduction was reached and maintained for 2 weeks. Results: In ABA rats, the volumes of the cerebral cortex and corpus callosum were significantly reduced compared to controls by 6% and 9%, respectively. The number of GFAP-positive astrocytes in these regions decreased by 39% and 23%, total astrocyte-covered area by 83% and 63%. In neurons no changes were observed. The findings were complemented by a 60% and 49% reduction in astrocyte (GFAP) mRNA expression. Conclusions: Volumetric brain changes in ABA animals mirror those in human AN patients. These alterations are associated with a reduction of GFAP-positive astrocytes as well as GFAP expression. Reduced astrocyte functioning could help explain neuronal dysfunctions leading to symptoms of rigidity and impaired learning. Astrocyte loss could constitute a new research target for understanding and treating semi-starvation and AN.
Thermodynamics of spin crossover in ferropericlase: an improved LDA+$U_{sc}$ calculation
Creators: name: Sun, Yang
name: Zhuang, Jingyi
name: Wentzcovitch, Renata M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We present LDA+$U_{sc}$ calculations of high-spin (HS) and low-spin (LS) states in ferropericlase (fp) with an iron concentration of 18.75$\%$. The Hubbard parameter $U$ is determined self-consistently with structures optimized at arbitrary pressures. We confirm a strong dependence of $U$ on the pressure and spin state. Static calculations confirm that the antiferromagnetic configuration is more stable than the ferromagnetic one in the HS state, consistent with low-temperature measurements. Phonon calculations guarantee the dynamical stability of HS and LS states throughout the pressure range of the Earth mantle. Compression curves for HS and LS states agree well with experiments. Using a non-ideal mixing model for the HS to LS states solid solution, we obtain a crossover starting at $\sim$45 GPa at room temperature and considerably broader than previous results. The spin-crossover phase diagram is calculated, including vibrational, magnetic, electronic, and non-ideal HS-LS entropic contributions. Our results suggest the mixed-spin state predominates in fp in most of the lower mantle.
description: 8 pages, 8 figures
Reconfigurable and Real-Time Nyquist OTDM Demultiplexing in Silicon Photonics
Creators: name: Misra, Arijit
name: Singh, Karanveer
name: Meier, Janosch
name: Kress, Christian
name: Schwabe, Tobias
name: Preußler, Stefan
name: Scheytt, J. Christoph
name: Schneider, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Applied Physics (physics.app-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: We demonstrate for the first time, to the best of our knowledge, reconfigurable and real-time orthogonal time-domain demultiplexing of coherent multilevel Nyquist signals in silicon photonics. No external pulse source is needed and frequencytime coherence is used to sample the incoming Nyquist OTDM signal with orthogonal sinc-shaped Nyquist pulse sequences using Mach-Zehnder modulators. All the parameters such as bandwidth and channel selection are completely tunable in the electrical domain. The feasibility of this scheme is demonstrated through a demultiplexing experiment over the entire C-band (1530 nm - 1550 nm), employing 24 Gbaud Nyquist QAM signals due to experimental constraints on the transmitter side. However, the silicon Mach-Zehnder modulator with a 3-dB bandwidth of only 16 GHz can demultiplex Nyquist pulses of 90 GHz optical bandwidth suggesting a possibility to reach symbol rates up to 90 GBd in an integrated Nyquist transceiver.
Additional file 20: of Multi-cohort analysis of colorectal cancer metagenome identified altered bacteria across populations and universal bacterial markers
Creators: name: Dai, Zhenwei
name: Coker, Olabisi
name: Nakatsu, Geicho
name: Wu, William
name: Zhao, Liuyang
name: Chen, Zigui
name: Chan, Francis
name: Kristiansen, Karsten
name: Sung, Joseph
name: Wong, Sunny
name: Yu, Jun
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: Figure S11. Correlation network between CRC-depleted bacteria and CRC-depleted GO/KO categories (correlations with ρ > 0.5 were labeled in the figure). Node attributes are attached in Additional file 25: Table S11 and Additional file 26: Table S12. (PDF 3924 kb)
Gravitational distortion on photon state at the vicinity of the Earth
Creators: name: Exirifard, Qasem
name: Karimi, Ebrahim
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: As a photon propagates along a null geodesic, the space-time curvature around the geodesic distorts its wave function. We utilise the Fermi coordinates adapted to a general null geodesic, and derive the equation for interaction between the Riemann tensor and the photon wave function. The equation is solved by being mapped to a time-dependent Schrödinger equation in $(2+1)$ dimensions. The results show that as a Gaussian time-bin wavepacket with a narrow bandwidth travels over a null geodesic, it gains an extra phase that is a function of the Riemann tensor evaluated and integrated over the propagation trajectory. This extra phase is calculated for communication between satellites around the Earth, and is shown to be measurable by current technology.
description: Matches the published version
Additional file 5: of Identification of methylation sites and signature genes with prognostic value for luminal breast cancer
Creators: name: Xiao, Bin
name: Chen, Lidan
name: Ke, Yongli
name: Hang, Jianfeng
name: Cao, Ling
name: Zhang, Rong
name: Zhang, Weiyun
name: Liao, Yang
name: Gao, Yang
name: Chen, Jianyun
name: Li, Li
name: Hao, Wenbo
name: Sun, Zhaohui
name: Li, Linhai
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Figure S5. Kaplanâ Meier survival analysis based on risk score model system (a) and Luminal subtypes using the Metabric cohort (b). (a) The black and red lines indicates the low-risk group and the high-risk group; (b) The black and red lines indicates the Luminal A and Luminal B breast cancer tissues. (PDF 29 kb)
Revisiting Dark Matter Freeze-in and Freeze-out through Phase-Space Distribution
Creators: name: Du, Yong
name: Huang, Fei
name: Li, Hao-Lin
name: Li, Yuan-Zhen
name: Yu, Jiang-Hao
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We revisit dark-matter production through freeze-in and freeze-out by solving the Boltzmann equations at the level of the phase-space distribution $f(p,t)$. Using the $2\to2$ annihilation and the $1\to2$ decay processes for illustration, we compare the resulting dark-matter relic abundance with that from the number-density approach. In the transition regime between freeze-in and freeze-out, we find the difference can be quite significant, or even by orders of magnitude if the annihilation of dark-matter particles or the decaying mediator is neglected. The freeze-in production in the $2\to2$ and the $1\to 2$ processes can also result in non-thermal phase-space distributions, or even multi-modal ones with out-of-equilibrium decay, which can potentially affect structure formation at late times. We also investigate how elastic scatterings can distort such non-thermal distributions.
description: 36 pages, 11 figures, to match the published version
Additional file 21: of Multi-cohort analysis of colorectal cancer metagenome identified altered bacteria across populations and universal bacterial markers
Creators: name: Dai, Zhenwei
name: Coker, Olabisi
name: Nakatsu, Geicho
name: Wu, William
name: Zhao, Liuyang
name: Chen, Zigui
name: Chan, Francis
name: Kristiansen, Karsten
name: Sung, Joseph
name: Wong, Sunny
name: Yu, Jun
Publisher: name: figshare
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Figure S10. Correlation network between CRC-enriched bacteria and CRC-enriched GO categories. Node attributes are attached in AdditionalÂ fileÂ 27: Table S9. (PDF 376Â kb)
Gender, Weather Shocks and Welfare: Evidence from Malawi
Creators: name: Asfaw, Solomon
name: Maggio, Giuseppe
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy

description: This paper explores the gender-differentiated effects of weather shocks on households’ welfare in Malawi using panel data aligned with climatic records. Results show that temperature shocks severely affect household welfare, reducing consumption, food consumption and daily caloric intake. The negative welfare effects are more severe for households where land is solely managed by women, a finding that sheds light on the gender-unequal impact of temperature shocks. Our evidence also suggests that women’s vulnerability to temperature shocks is linked to women’s land tenure security, as temperature shocks significantly impact women’s welfare only in patrilineal districts, where statistics show that investment in agricultural technologies is lower.
Reduced astrocyte density underlying brain volume reduction inactivity-based anorexia rats
Creators: name: Frintrop, Linda
name: Liesbrock, Johanna
name: Paulukat, Lisa
name: Johann, Sonja
name: Kas, Martien J.
name: Tolba, Rene
name: Heussen, Nicole
name: Neulen, Joseph
name: Konrad, Kerstin
name: Herpertz-Dahlmann, Beate
name: Beyer, Cordian
name: Seitz, Jochen
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Objectives: Severe grey and white matter volume reductions were found in patients with anorexia nervosa (AN) that were linked to neuropsychological deficits while their underlying pathophysiology remains unclear. For the first time, we analysed the cellular basis of brain volume changes in an animal model (activity-based anorexia, ABA). Methods: Female rats had 24 h/day running wheel access and received reduced food intake until a 25% weight reduction was reached and maintained for 2 weeks. Results: In ABA rats, the volumes of the cerebral cortex and corpus callosum were significantly reduced compared to controls by 6% and 9%, respectively. The number of GFAP-positive astrocytes in these regions decreased by 39% and 23%, total astrocyte-covered area by 83% and 63%. In neurons no changes were observed. The findings were complemented by a 60% and 49% reduction in astrocyte (GFAP) mRNA expression. Conclusions: Volumetric brain changes in ABA animals mirror those in human AN patients. These alterations are associated with a reduction of GFAP-positive astrocytes as well as GFAP expression. Reduced astrocyte functioning could help explain neuronal dysfunctions leading to symptoms of rigidity and impaired learning. Astrocyte loss could constitute a new research target for understanding and treating semi-starvation and AN.
Verifying Switched System Stability With Logic
Creators: name: Tan, Yong Kiam
name: Mitsch, Stefan
name: Platzer, André
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: F.3.1; F.4.1; G.1.7; I.2.3
subject: 03B70, 34A38, 93C30

description: Switched systems are known to exhibit subtle (in)stability behaviors requiring system designers to carefully analyze the stability of closed-loop systems that arise from their proposed switching control laws. This paper presents a formal approach for verifying switched system stability that blends classical ideas from the controls and verification literature using differential dynamic logic (dL), a logic for deductive verification of hybrid systems. From controls, we use standard stability notions for various classes of switching mechanisms and their corresponding Lyapunov function-based analysis techniques. From verification, we use dL's ability to verify quantified properties of hybrid systems and dL models of switched systems as looping hybrid programs whose stability can be formally specified and proven by finding appropriate loop invariants, i.e., properties that are preserved across each loop iteration. This blend of ideas enables a trustworthy implementation of switched system stability verification in the KeYmaera X prover based on dL. For standard classes of switching mechanisms, the implementation provides fully automated stability proofs, including searching for suitable Lyapunov functions. Moreover, the generality of the deductive approach also enables verification of switching control laws that require non-standard stability arguments through the design of loop invariants that suitably express specific intuitions behind those control laws. This flexibility is demonstrated on three case studies: a model for longitudinal flight control by Branicky, an automatic cruise controller, and Brockett's nonholonomic integrator.
description: Long version of paper at HSCC 2022 (25th ACM International Conference on Hybrid Systems: Computation and Control, May 4-6, 2022)
Identification of the odd positive integers and prime numbers using a square wave version of Riemann Zeta generating function
Creators: name: Martin, John
Publisher: name: figshare
Year: 2017
Subjects: subject: 10199 Pure Mathematics not elsewhere classified
subject: FOS: Mathematics

description: Using a modified version of the Riemann Zeta generating function (based on the extended Riemann Siegel
functional form) produces a square wave version of the Riemann Zeta function along the positive real axis.
This function can be used to highlight and identify the positive odd integers and prime numbers.
Improving the performance of district heating systems by utilization of local heat boosters
Creators: name: Falcone, Alessia
name: Dominković, Dominik Franjo
name: Pedersen, Allan Schrøder
Publisher: name: figshare
Year: 2017
Subjects: subject: 91305 Energy Generation, Conversion and Storage Engineering
subject: FOS: Mechanical engineering
subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies
subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: District Heating (DH) plays an important role into the Danish energy green transition towards the future sustainable energy systems. The new, 4th generation district heating network, the so called Low Temperature District Heating (LTDH), tends to lower the supply temperature of the heat down to 40-50°C with return temperatures of 20-30 °C. This kind of heating system has many advantages and among all of them, it allows utilization of the heat coming from low exergy heat sources, as well as to decrease the grid heat losses. Electrical energy driven heat sources are also integrated into the future LTDH grid as they will have the strategical role of connecting the heating system with the electrical energy coming from the intermittent and fluctuating renewable energy sources such as wind and solar power. In this paper a case study of district heating system is presented and analysed. The goal was to evaluate the possibilities to lower the forward temperature of the heat supply in order to reduce the heat losses of the system. Booster heat pumps are introduced to increase the water temperature close to the final users. A Matlab model was developed to simulate the state of the case study DH network in terms of mass flow rates, temperatures and heat losses. After the model simulation, a new configuration of district heating with the introduction of three booster heat pumps was proposed. The new system’s operation is determined based on a non-linear optimization problem in which the objective function was set to minimize the system heat losses. This goal was achieved by lowering the forward temperature to 40°C and relying on the installed heat pumps to boost the water temperature to the admissible value needed for the domestic hot water preparation. Depending on the season, the optimized configuration allows decreasing the network heat losses in the range of 38-54%, higher reductions being achieved during colder seasons.
Ring-expanded iridium and rhodium N-heterocyclic carbene complexes: a comparative DFT study of heterocycle ring size and metal center diversity
Creators: name: E. Ö. Karaca
name: M. Akkoç
name: E. Öz
name: S. Altin
name: V. Dorcet
name: T. Roisnel
name: N. Gürbüz
name: Ö. Çelik
name: A. Bayri
name: C. Bruneau
name: S. Yaşar
name: I. Özdemir
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: A new series of ring-expanded six- and seven-membered N-heterocyclic carbene precursors (re-NHCs) and their transition metal complexes were synthesized. The basic properties of the synthesized materials were investigated by density functional theory (DFT). The six- and seven-membered re-NHCs were synthesized in good yield via reaction of the corresponding alkyldibromides or alkyldiiodides with N,N′-bis-(2-phenylbenzene)formamidine in the presence of K2CO3 under aerobic conditions. Complexes, represented by the formula [ML1,2(COD)Cl] (where M = Ir or Rh and L is a ring-expanded N-heterocyclic carbene ligand), were synthesized in the presence of the corresponding free carbene and iridium or rhodium metal precursors in tetrahydrofuran. All new re-NHC complexes were characterized by different analytical techniques, including NMR spectroscopy, X-ray diffraction, UV spectroscopy and elemental analysis. According to molecular electrostatic potential calculations, the electrophilic properties of the complexes were aligned, from highest to lowest, as Ir-6-DiPh, Rh-6-DiPh and Ir-7-DiPh. The HOMO, LUMO and energy gaps of the complexes were calculated by DFT. On the basis of the DFT analysis, it can be predicted that Rh-6-DiPh is the most stable complex and Ir-7-DiPh is more reactive than Ir-6-DiPh.
Supporting the development of shared understanding in distributed design teams
Creators: name: Cash, Philip
name: Dekoninck, Elies A
name: Saeema Ahmed-Kristensen
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Distributed teams are an increasingly common feature of engineering design work. One key factor in the success of these teams is the development of short- and longer-term shared understanding. A lack of shared understanding has been recognized as a significant challenge, particularly in the context of globally distributed engineering activities. A major antecedent for shared understanding is question asking and feedback. Building on question-asking theory this work uses a quasi-experimental study to test the impact of questioning support on homogeneous and heterogeneous teams. The results show significant improvement in shared understanding for both team types (27% improvement for heterogeneous and 16% for homogeneous), as well as substantial differences in how this improvement is perceived. This extends theoretical insight on the development of shared understanding and contributes one of few empirical studies directly comparing homogeneous and heterogeneous teams in the engineering design context. This has implications for how distributed teams can be more effectively supported in practice, as well as how shared understanding can be facilitated in engineering design.
Resin-based composite materials and natural anterior teeth: an “aesthetic” challenge
Creators: name: Ardu, Stefano
Publisher: name: Université de Genève
Year: 2013
Subjects: info:eu-repo/classification/ddc/617.6
L* a* b*
spectrophotometer
esthetics
resin
composites

description: This thesis aims to clarify several issues within the field of direct composite resin materials. A new classification system for composite materials has been suggested, on the basis of the two main components (fillers and the matrix). The mechanical performance of the material when subjected to an artificial fatigue load, simulating that of the oral cavity, has been assessed. An evaluation of colour compatibility, colour stability and contrast ratio of different resin composites and gloss retention and staining behaviour of these materials in response to normal conditions such as exposure to common foods, beverages and brushing habits, was then evaluated. The second part of this thesis is based on the optical characterisation of natural teeth, with particular emphasis on enamel and the enamel-dentine complex. An in-vivo evaluation using a spectrophotometer is proposed for measuring the mismatch between a composite restoration and the corresponding area of the contralateral sound tooth.
Additional file 22: of Multi-cohort analysis of colorectal cancer metagenome identified altered bacteria across populations and universal bacterial markers
Creators: name: Dai, Zhenwei
name: Coker, Olabisi
name: Nakatsu, Geicho
name: Wu, William
name: Zhao, Liuyang
name: Chen, Zigui
name: Chan, Francis
name: Kristiansen, Karsten
name: Sung, Joseph
name: Wong, Sunny
name: Yu, Jun
Publisher: name: figshare
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Figure S13. Null distribution of the number of species left by removing the low abundant species, species missing in any cohort, and species with â divergent abundance change directionsâ . (PDF 117Â kb)
Thermodynamics of Precision in Markovian Open Quantum Dynamics
Creators: name: Van Vu, Tan
name: Saito, Keiji
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The thermodynamic and kinetic uncertainty relations indicate trade-offs between the relative fluctuation of observables and thermodynamic quantities such as dissipation and dynamical activity. Although these relations have been well studied for classical systems, they remain largely unexplored in the quantum regime. In this paper, we investigate such trade-off relations for Markovian open quantum systems whose underlying dynamics are quantum jumps, such as thermal processes and quantum measurement processes. Specifically, we derive finite-time lower bounds on the relative fluctuation of both dynamical observables and their first passage times for arbitrary initial states. The bounds imply that the precision of observables is constrained not only by thermodynamic quantities but also by quantum coherence. We find that the product of the relative fluctuation and entropy production or dynamical activity is enhanced by quantum coherence in a generic class of dissipative processes of systems with nondegenerate energy levels. Our findings provide insights into the survival of the classical uncertainty relations in quantum cases.
description: 7+13 pages, 1+1 figures
Ring-expanded iridium and rhodium N-heterocyclic carbene complexes: A comparative DFT study of heterocycle ring size and metal center diversity
Creators: name: E.Ö. Karaca
name: M. Akkoç
name: E. Öz
name: S. Altin
name: V. Dorcet
name: T. Roisnel
name: N. Gürbüz
name: Ö. Çelik
name: A. Bayri
name: C. Bruneau
name: S. Yaşar
name: İ. Özdemir
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: A new series of ring-expanded six- and seven-membered N-heterocyclic carbene precursors (re-NHCs) and their transition metal complexes were synthesized. The basic properties of the synthesized materials were investigated by density functional theory (DFT). The six- and seven-membered re-NHCs were synthesized in good yield via reaction of the corresponding alkyldibromides or alkyldiiodides with N,N’-bis-(2-phenylbenzene)formamidine in the presence of K2CO3 under aerobic conditions. Complexes, represented by the formula [ML1,2(COD)Cl] (where M = Ir or Rh and L is a ring-expanded N-heterocyclic carbene ligand), were synthesized in the presence of the corresponding free carbene and iridium or rhodium metal precursors in tetrahydrofuran. All new re-NHC complexes were characterized by different analytical techniques, including NMR spectroscopy, X-ray diffraction, UV spectroscopy and elemental analysis. According to molecular electrostatic potential calculations, the electrophilic properties of the complexes were aligned, from highest to lowest, as Ir-6-DiPh, Rh-6-DiPh and Ir-7-DiPh. The HOMO, LUMO and energy gaps of the complexes were calculated by DFT. On the basis of the DFT analysis, it can be predicted that Rh-6-DiPh is the most stable complex and Ir-7-DiPh is more reactive than Ir-6-DiPh.
Développement et utilisation d'une plateforme d'intégration d'information appliquée aux anévrismes intracrâniens
Creators: name: Bijlenga, Philippe Alexandre Pierre
Publisher: name: Université de Genève
Year: 2013
Subjects: subject: info:eu-repo/classification/ddc/616.8
subject: Anévrisme intracranien
subject: Intracranial aneurysm
subject: Registre
subject: Register
subject: Database
subject: Base de donnée
subject: Intégration
subject: Integration
subject: Decision making
subject: Management
subject: Epidemiology
subject: Genetics
subject: FOS: Biological sciences
subject: Clipping
subject: Embolisation
subject: Stent
subject: Coil
subject: Clinical impact

description: La thèse décrit un concept de collecte et d'intégration d'information en milieu clinique permettant d'améliorer la prise en charge systématique de patient tout en alimentant un système d'information favorisant les échanges transversaux entre médecins, chercheurs et industriels. L'application du concept a été évalué au court d'un projet européen « @neurIST » entre 2007 et 2012. Une méthodologie pour le développement, l'implémentation et l'utilisation d'une telle plateforme est décrite. L'impact scientifique et clinique de l'utilisation de la plateforme est illustré par la présentation des résultats des études phares. Les avancées concernant la génétique de la maladie anévrismale, l'identification d'une signature d'expression différentielle de gène dans les cellules circulante du sang permettant l'identification de patients souffrant d'anévrismes intracrâniens, l'épidémiologie ainsi que l'impact de la prise en charge médicale et chirurgicale de la maladie sont décrite en détail. Les perspectives de développement futur et obstacles à surmonter sont discutées.
RAXIT KASALLIGI VA D VITAMINI YETISHMOVCHILIGI: MUAMMO VA YECHIMLARI
Creators: name: Maripjonov, Jasurbek
name: Rustamova, Odinaxon
name: Odashboeva, Xilola
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada bolalar orasida uchraydigani raxit kasalligiga to’xtalamiz. Bu kasallikni oldini olish borasida butun dunyoda qator ishlar amalga oshirilmoqda. Xususan bizning  yurtimizda sog`lom bola yurt kelajagi  shiori ostida Bolani tug`ulgunicha va tug`ulgandan keyin ham kasalliklardan himoya qilish borasida keng ko`lamli ishlar amalga oshirilib kelinmoqda. Xattoki onaning ham sog`ligiga jiddiy etibor qaratilmoqda. Buning misoli sifatida O`zbekiston Respublikasi Prezidentining 2022-yil 28 yanvar dagi ‘’2022-2026 yillarga mo`njallangan Yangi O`zbekistonning Taraqqiyot strategiyasi to`g`risida’’ gi PF-60 -son Farmoni bilan reproduktiv yoshdagi va homilador ayollar, bolalar uchun yuqori  texnalogik  tibbiy yordam ko`rsatish tizimlari takomillashtrilmoqda.
Detecting contagious spreading of urban innovations on the global city network
Creators: name: Kitzmann, Niklas H.
name: Romanczuk, Pawel
name: Donges, Jonathan F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Only a fast and global transformation towards decarbonization and sustainability can keep the Earth in a civilization-friendly state. As hotspots for (green) innovation and experimentation, cities could play an important role in this transition. They are also known to profit from each other's ideas, with policy and technology innovations spreading to other cities. In this way, cities can be conceptualized as nodes in a globe-spanning learning network. The dynamics of this process are important for society's response to climate change and other challenges, but remain poorly understood on a macroscopic level. In this contribution, we develop an approach to identify whether network-based complex contagion effects are a feature of sustainability policy adoption by cities, based on dose-response contagion and surrogate data models. We apply this methodology to an example data set, comprising empirical data on the spreading of a public transport innovation (Bus Rapid Transit Systems) and a global inter-city connection network based on scheduled flight routes. We find evidence pointing towards a contagious spreading process which cannot be explained by either the network structure or the increase in global adoption rate alone. This suggests that the actions of a city's abstract "global neighborhood" within the network of cities may be an important factor in which policies and innovations are implemented, with potential connections to the emergence of social tipping processes. The methodology is generic, and can be used to compare the predictive power for innovation spreading of different kinds of inter-city network connections, e.g. via transport links, trade, or co-membership in political networks.
description: 15 pages, 5 figures, 1 table
Towards the use of conservative thermodynamic variables in data assimilation: a case study using ground-based microwave radiometer measurements
Creators: name: Marquet, Pascal
name: Martinet, Pauline
name: Mahfouf, Jean-François
name: Barbu, Alina Lavinia
name: Ménétrier, Benjamin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: This study aims at introducing two conservative thermodynamic variables (moist-air entropy potential temperature and total water content) into a one-dimensional variational data assimilation system (1D-Var) to demonstrate the benefit for future operational assimilation schemes. This system is assessed using microwave brightness temperatures from a ground-based radiometer installed during the field campaign SOFOG3D dedicated to fog forecast improvement. An underlying objective is to ease the specification of background error covariance matrices that are highly dependent on weather conditions when using classical variables, making difficult the optimal retrievals of cloud and thermodynamic properties during fog conditions. Background error covariance matrices for these new conservative variables have thus been computed by an ensemble approach based on the French convective scale model AROME, for both all-weather and fog conditions. A first result shows that the use of these matrices for the new variables reduces some dependencies to the meteorological conditions (diurnal cycle, presence or not of clouds) compared to usual variables (temperature, specific humidity). Then, two 1D-Var experiments (classical vs. conservative variables) are evaluated over a full diurnal cycle characterized by a stratus-evolving radiative fog situation, using hourly brightness temperatures. Results show, as expected, that analysed brightness temperatures by the 1D-Var are much closer to the observed ones than background values for both variable choices. This is especially the case for channels sensitive to water vapour and liquid water. On the other hand, analysis increments in model space (water vapour, liquid water) show significant differences between the two sets of variables.
description: 19 pages, 7 figures, 2 tables. Submitted first to the: "Atmospheric Measurement Techniques" on the 27th of October, 2021. Revised version: 21th of January 2022. V3: fix some issues + add arXiv links in the references; add the doi of the preprint
Del barco al ferrocarril, del río a la carretera: del uso de las redes fluviales a la infraestructura terrestre como medio de comunicación en Tabasco, 1949-1980
Creators: name: Perera, Miguel Angel Díaz
Publisher: name: figshare
Year: 2017
Subjects: subject: History
subject: 50204 Environmental Impact Assessment
subject: FOS: Earth and related environmental sciences
subject: Anthropology
subject: FOS: Sociology
subject: Geography
subject: 140218 Urban and Regional Economics
subject: FOS: Economics and business

description: A principios del siglo XX, la comunicación entre las ciudades de Tabasco se establecía a través de los múltiples ríos existentes en la región. La exuberante selva impedía una conexión expedita por tierra y la mayoría de los caminos únicamente eran transitables en época de secas por lo general de noviembre a abril, lo que limitaba el tránsito y comercio terrestre y obligaba al uso generalizado de barcos y cayucos. Este sistema tradicional que definía y condicionaba la cultura regional se desmanteló y entró en crisis entre 1949 y 1980, a partir de la creciente voluntad del estado mexicano por hacer productivas regiones que se consideraban como ociosas según influjos de la economía nacional.
A Shallow U-Net Architecture for Reliably Predicting Blood Pressure (BP) from Photoplethysmogram (PPG) and Electrocardiogram (ECG) Signals
Creators: name: Mahmud, Sakib
name: Ibtehaz, Nabil
name: Khandakar, Amith
name: Tahir, Anas
name: Rahman, Tawsifur
name: Islam, Khandaker Reajul
name: Hossain, Md Shafayet
name: Rahman, M. Sohel
name: Islam, Mohammad Tariqul
name: Chowdhury, Muhammad E. H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Cardiovascular diseases are the most common causes of death around the world. To detect and treat heart-related diseases, continuous Blood Pressure (BP) monitoring along with many other parameters are required. Several invasive and non-invasive methods have been developed for this purpose. Most existing methods used in the hospitals for continuous monitoring of BP are invasive. On the contrary, cuff-based BP monitoring methods, which can predict Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP), cannot be used for continuous monitoring. Several studies attempted to predict BP from non-invasively collectible signals such as Photoplethysmogram (PPG) and Electrocardiogram (ECG), which can be used for continuous monitoring. In this study, we explored the applicability of autoencoders in predicting BP from PPG and ECG signals. The investigation was carried out on 12,000 instances of 942 patients of the MIMIC-II dataset and it was found that a very shallow, one-dimensional autoencoder can extract the relevant features to predict the SBP and DBP with the state-of-the-art performance on a very large dataset. Independent test set from a portion of the MIMIC-II dataset provides an MAE of 2.333 and 0.713 for SBP and DBP, respectively. On an external dataset of forty subjects, the model trained on the MIMIC-II dataset, provides an MAE of 2.728 and 1.166 for SBP and DBP, respectively. For both the cases, the results met British Hypertension Society (BHS) Grade A and surpassed the studies from the current literature.
description: 22 pages, Figure 8, Table 13
Additional file 23: of Multi-cohort analysis of colorectal cancer metagenome identified altered bacteria across populations and universal bacterial markers
Creators: name: Dai, Zhenwei
name: Coker, Olabisi
name: Nakatsu, Geicho
name: Wu, William
name: Zhao, Liuyang
name: Chen, Zigui
name: Chan, Francis
name: Kristiansen, Karsten
name: Sung, Joseph
name: Wong, Sunny
name: Yu, Jun
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Figure S2. Stratification of age in HK and FD cohorts. Conditioned Mann-Whitney U test was performed conditioned on the age strata. (PDF 214Â kb)