cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Downhole microseismic monitoring: processing, algorithms and error analysis
Creators: name: Akram, Jubran
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Microseismic
subject: Data processing
subject: Error analysis
subject: Downhole
subject: Arrival-time picking

description: Basic microseismic data processing for hypocentre location estimates is a pre-requisite to extracting information about the stimulated reservoir volume as well as understanding the geomechanics of the fracturing process. The primary objective of this thesis is to investigate the basic processing of microseismic data acquired with receivers in a single observation well, with emphasis on the evaluation and parameter selection of processing algorithms and the associated hypocentre location error analysis. This thesis is made up of five independent studies. The first study discusses the development of a MATLAB based microseismic data processing package (Calgary microseismic processing system; CaMPS). This software is used to process the microseismic data from a hydraulic fracture treatment in western Canada. For reference, the results are compared with those obtained independently by a microseismic services company. The second study examines several single-trace event-detection and arrival-time picking algorithms for microseismic data. A dynamic threshold criterion for event detection and a hybrid, arrival-time picking approach are proposed. The performance of these algorithms is evaluated using synthetic and real microseismic data. The third study describes an iterative cross-correlation based workflow to refine the initial arrival-time picks. This workflow is compared with other single-trace and multi-trace techniques. The proposed workflow provides an arrival-time accuracy of ±0.5 − 1ms for both synthetic and real microseismic data examples considered in this study. The fourth study examines hypocentre location uncertainty and errors due to inaccurate velocity model. The Monte Carlo uncertainty analysis suggests that the velocity errors have a greater impact on hypocentre locations than arrival-time pick errors. The hypocentre location errors resulting from the model calibration process are also discussed, in particular the use of single vs. multiple calibration shots, a priori information, and first vs. direct arrival times. The fifth study discusses the remaining hypocentre location errors after anisotropic model calibration. The behaviour of hypocentre location is discussed when a 1-D layered, isotropic and homogeneous model is used to locate hypocentres from anisotropic and heterogeneous subsurface. The results emphasize the use of a detailed model with anisotropy and lithological or structural variations for improving hypocentre location accuracy.
Single-cell transcriptomics and epigenomics of mouse lung with COPD
Creators: name: 张瑞华(Ruihua Zhang)
Publisher: name: CNGB
Year: 2023
Subjects: Raw sequence reads
Epigenomics
Transcriptome or Gene expression
Monoisolate
Model organism

description: Using single cell RNA sequencing to profile transcriptomics and epigenomics cell atlas of mouse lungs with COPD and discuss the difference between control and case group.
Small Wind Turbine Generator Condition Monitoring: Test Rig and Preliminary Analysis
Creators: name: Cai, Hongwei
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Engineering--Mechanical
subject: small wind turbine generator, condition monitoring
subject: test rig, order analysis
subject: bearing, imbalance

description: In order to simulate small wind turbine generators working at variable speed and develop reliable condition monitoring and fault diagnosis techniques, a test rig based on a 500 W permanent magnet generator was built. A suitable accelerometer was selected and successfully used for vibration signal collection. The best sensor location is at 6 o’clock on the outside rim of bearing housing. Mechanical and electrical imbalances were simulated. Preliminary analyses of both imbalances under constant speed were introduced. Due to the variable speed nature of wind turbine operation, time-frequency analysis tools have been accepted as key signal processing tools for such application. Short time Fourier transform (STFT), continuous wavelet transform (CWT) analysis and order analysis were performed and compared on data acquired from the test rig for preliminary analysis of bearing. Order analysis proved to be a simple, intuitive and reliable technique for vibration analysis under variable speed.
TDG soil metabolites
Creators: name: 李戌清(LI)
Publisher: name: CNGB
Year: 2023
Subjects: Metabolome
Other
soil
Agricultural

description: Combined Analysis of Soil Bacterial Communities, Metabolites and Properties Reveals the Defense Mechanism Involved in Cold Stress Response of Tetrastigma hemsleyanum Diels & Gilg in Reclaimed Land
Deterministic generation of shaped single microwave photons using a parametrically driven coupler
Creators: name: Yang, Jiaying
name: Eriksson, Axel
name: Aamir, Mohammed Ali
name: Strandberg, Ingrid
name: Moreno, Claudia Castillo
name: Lozano, Daniel Perez
name: Persson, Per
name: Gasparinetti, Simone
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A distributed quantum computing system requires a quantum communication channel between spatially separated processing units. In superconducting circuits, such a channel can be realized by using propagating microwave photons to encode and transfer quantum information between an emitter and a receiver node. Here we experimentally demonstrate a superconducting circuit that deterministically transfers the state of a data qubit into a propagating microwave mode, with a process fidelity of 94.5%. We use a time-varying parametric drive to shape the temporal profile of the propagating mode to be time-symmetric and with constant phase, so that reabsorption by the receiving processor can be implemented as a time-reversed version of the emission. We demonstrate a self-calibrating routine to correct for time-dependent shifts of the emitted frequencies due to the modulation of the parametric drive. Our work provides a reliable method to implement high-fidelity quantum state transfer and remote entanglement operations in a distributed quantum computing network.
Argyrops Swainson 1839
Creators: name: Siddiqui, Pirzada Jamal
name: Amir, Shabir Ali
name: Masroor, Rafaqat
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Sparidae
Argyrops

description: Genus Argyrops Swainson, 1839
 Argyrops (subgenus of Chrysophrys) Swainson, 1839: 171, 221.
 Diagnosis. Body deep and strongly compressed, head large. Mouth slightly oblique. First two dorsal-fin spines very short, 3rd to 5th spine or 7th flattened and much elongated, filamentous in juveniles. In front of both jaws, 4–6 conical teeth, followed by 2 rows of molar like teeth in both jaws, those of outer row bluntly conical anteriorly. No single greatly enlarged molar present posteriorly. Preopercluar flange naked; interorbital with scales, scales reaching beyond level of vertical diameter of eye. Four valid species, one in Pakistani waters.
description: Published as part of Siddiqui, Pirzada Jamal, Amir, Shabir Ali & Masroor, Rafaqat, 2014, The sparid fishes of Pakistan, with new distribution records, pp. 71-100 in Zootaxa 3857 (1) on page 79, DOI: 10.11646/zootaxa.3857.1.3, http://zenodo.org/record/228181
Participatory knowledge mobilization: a gender analysis characterizing the understandings of mother-­‐to-­‐child HIV transmission in Maasai women and outreach healthcare workers in rural Tanzania
Creators: name: Birks, Lauren
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Public Health
subject: Gender
subject: participatory action research
subject: maternal health
subject: Maasai
subject: HIV/AIDS

description: In sub-­‐Saharan Africa, women of childbearing age are particularly vulnerable to HIV/AIDS. Historically, efforts to mitigate HIV/AIDS among these women have been limited to high-­‐risk groups, such as female sex workers and intravenous drug users. Such efforts lack a gendered perspective, and therefore do not account for power differentials and patriarchal structures that influence women’s ability to access healthcare, to make healthcare-­‐related decisions, and to access health information. Gender inequities such as limited access to HIV care and treatment services, decreased ability to negotiate safe sexual encounters, and lack of access to family planning, are all factors that increase HIV prevalence among women. For Maasai women, residing in the Ngorongoro Conservation Area, Northern Tanzania, gender inequities are amplified by polygamy and a patriarchal social structure. Women are largely excluded from opportunities for education and lack autonomy when it comes to health decision-­‐making. Knowledge of HIV is limited, and maternal health services remain limited and underutilized. My research objectives were to investigate Maasai women’s knowledge of HIV and PMTCT in order to assist Endulen Hospital with delivering HIV and PMTCT services. I used participatory action research and gender analysis methodologies to explore and describe women’s experiences with HIV and PMTCT. As the research process unfolded, salient inequities in health and welfare of Maasai women became evident. Women clearly emphasized that while HIV and PMTCT were of concern to their community, maternal health and women’s specific health were of paramount concern to them. Through the process of action research, my participants and I formed a women’s group that shared each other’s experiences of living with gender-­‐based inequities. We examined the consequences of these inequities, and discussed possible modes of action that could attenuate the oppressive burden these women carry everyday.
RNA-seq of shEPN3 A549 cell lines
Creators: name: 赖娟(Juan Lai)
Publisher: name: CNGB
Year: 2023
Subjects: Raw sequence reads
Other
人源商业化细胞系

description: To study the mechanism of EPN3 in non-small cell lung cancer, we constructed the stable shEPN3 konckdown cell line in A549 cells and performed RNA-seq.
Technology ready use of single layer graphene as a transparent electrode for hybrid photovoltaic devices
Creators: name: Wang, Zhibing
name: Puls, Conor P.
name: Staley, Neal E.
name: Zhang, Yu
name: Todd, Aaron
name: Xu, Jian
name: Howsare, Casey A.
name: Hollander, Matthew J.
name: Robinson, Joshua A.
name: Liu, Ying
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Graphene has been used recently as a replacement for indium tin oxide (ITO) for the transparent electrode of an organic photovoltaic device. Due to its limited supply, ITO is considered as a limiting factor for the commercialization of organic solar cells. We explored the use of large-area graphene grown on copper by chemical vapor deposition (CVD) and then transferred to a glass substrate as an alternative transparent electrode. The transferred film was shown by scanning Raman spectroscopy measurements to consist of >90% single layer graphene. Optical spectroscopy measurements showed that the layer-transferred graphene has an optical absorbance of 1.23% at a wavelength of 532 nm. We fabricated organic hybrid solar cells utilizing this material as an electrode and compared their performance with ITO devices fabricated using the same procedure. We demonstrated power conversion efficiency up to 3.98%, higher than that of the ITO device (3.86%), showing that layer-transferred graphene promises to be a high quality, low-cost, flexible material for transparent electrodes in solar cell technology.
description: 6 pages, 3 figures
Adoptive cellular immunotherapy for solid neoplasms beyond CAR-T
Creators: name: Liu, Qiaofei
name: Li, Jiayi
name: Zheng, Huaijin
name: Yang, Sen
name: Hua, Yuze
name: Huang, Nan
name: Kleeff, Jörg H.
name: Liao, Quan
name: Wu, Wenming
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 610

description: In recent decades, immune checkpoint blockade and chimeric antigen receptor T cell (CAR-T) therapy are two milestone achievements in clinical immunotherapy. However, both show limited efficacies in most solid neoplasms, which necessitates the exploration of new immunotherapeutic modalities. The failure of CAR-T and immune checkpoint blockade in several solid neoplasms is attributed to multiple factors, including low antigenicity of tumor cells, low infiltration of effector T cells, and diverse mechanisms of immunosuppression in the tumor microenvironment. New adoptive cell therapies have been attempted for solid neoplasms, including TCR-T, CAR-natural killer cells (CAR-NK), and CAR-macrophages (CAR-M). Compared to CAR-T, these new adoptive cell therapies have certain advantages in treating solid neoplasms. In this review, we summarized the 40-year evolution of adoptive cell therapies, then focused on the advances of TCR-T, CAR-NK, and CAR-M in solid neoplasms and discussed their potential clinical applications.
Permafrost development and active-layer hydrology of peat plateaus in wetland-dominated discontinuous permafrost
Creators: name: Christensen, Brendan
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Hydrology
subject: Engineering--Environmental
subject: Hydrology
subject: Permafrost
subject: subarctic
subject: Peatlands
subject: Runoff
subject: Active-layer

description: In the wetland dominated discontinuous permafrost of the Canadian sub-artic, hydrological processes are governed by permafrost and active layer development associated with different landcover types. Subsurface runoff from the mosaic of different landcover types in the Scotty Creek research basin, Northwest Territories, Canada, is governed by permafrost cored peat plateaus that are elevated above surrounding bogs and fens. To predict how runoff from peat plateaus in this environment may be changing as permafrost freeze-thaw processes evolve under changing physical and climatic conditions, a model accounting for surface and soil freeze-thaw processes and lateral runoff from simplified peat plateaus is developed. This model utilizes the Northern Ecosystem Soil Temperature (NEST) model to simulate surface and soil freeze-thaw processes by solving the surface energy balance and soil heat conduction equation. As runoff processes from NEST are not physically based, the Simple Fill And Spill Hydrology (SFASH) model, developed for simulating subsurface runoff from peat plateaus, was integrated into NEST to control plateau drainage processes. From the various scenario based simulations developed using NEST, SFASH, and the coupled NEST/SFASH model, response of active layer, permafrost and runoff development to changing physical and climatic conditions is observed. As this sensitive wetland dominated discontinuous permafrost environment continues to experience change, physically based models, such as the one developed herein, will be invaluable for helping gain an understanding of how these landscapes will evolve, and will help to create adaptation and mitigation strategies for northern communities.
Urban-Derived Contaminants Cause Reproductive Disruption in an Aquatic Sentinel Species, Longnose Dace
Creators: name: Henderson, Suzanne
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Animal Physiology
subject: Ecology
subject: FOS: Biological sciences
subject: Microbiology
subject: Toxicology
subject: endocrine-disruption

description: We investigated potential adverse impacts of urban-derived environmental contaminants, such as pharmaceuticals, steroids, surfactants and plasticizers, on Longnose Dace (Rhinichthys cataractae) along two rivers, the Bow and Elbow Rivers, in the City of Calgary. Fish were sampled to evaluate physiological and morphological endpoints associated with reproduction and development, including adult sex ratios, changes in body and organ weight, and gonad malformation. Significant male bias was observed downstream of three wastewater treatment plants (WWTPs) on the Bow River, and significant female bias was observed on the Elbow River, suggesting the presence of environmental contaminants with hormone-like activity, dependent on location. To investigate the mechanisms of adverse fish health effects we quantified the expression of liver vitellogenin, estrogen receptor alpha, cytochrome P450, and insulin-like growth factor-1. Decreased IGF1 and ERα expression levels were observed downstream of WWTP effluent in the Bow River, while increased vitellogenin and ERα expression levels were noted in the Elbow River within Calgary. Results support the hypothesis that waterborne environmental contaminants may be responsible for the adverse health effects, such as biased sex ratios, of Longnose Dace within the City of Calgary.
Additional file 1 of Alcohol consumption among tertiary students in the Hohoe municipality, Ghana: analysis of prevalence, effects, and associated factors from a cross-sectional study
Creators: name: Aboagye, Richard Gyan
name: Kugbey, Nuworza
name: Ahinkorah, Bright Opoku
name: Seidu, Abdul-Aziz
name: Cadri, Abdul
name: Akonor, Paa Yeboah
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Questionnaire.
Explosion of smoothness for conjugacies between multimodal maps
Creators: name: Alves, Jose F.
name: Pinheiro, Vilton
name: Pinto, Alberto A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37E05

description: Let $f$ and $g$ be smooth multimodal maps with no periodic attractors and no neutral points. If a topological conjugacy $h$ between $f$ and $g$ is $C^{1}$ at a point in the nearby expanding set of $f$, then $h$ is a smooth diffeomorphism in the basin of attraction of a renormalization interval of $f$. In particular, if $f:I \to I$ and $g:J \to J$ are $C^r$ unimodal maps and $h$ is $C^{1}$ at a boundary of $I$ then $h$ is $C^r$ in $I$.
description: 22 pages
On the Use of Neural Networks for Full Waveform Inversion
Creators: name: Herrmann, Leon
name: Bürchner, Tim
name: Dietrich, Felix
name: Kollmannsberger, Stefan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Neural networks have recently gained attention in solving inverse problems. One prominent methodology are Physics-Informed Neural Networks (PINNs) which can solve both forward and inverse problems. In the paper at hand, full waveform inversion is the considered inverse problem. The performance of PINNs is compared against classical adjoint optimization, focusing on three key aspects: the forward-solver, the neural network Ansatz for the inverse field, and the sensitivity computation for the gradient-based minimization. Starting from PINNs, each of these key aspects is adapted individually until the classical adjoint optimization emerges. It is shown that it is beneficial to use the neural network only for the discretization of the unknown material field, where the neural network produces reconstructions without oscillatory artifacts as typically encountered in classical full waveform inversion approaches. Due to this finding, a hybrid approach is proposed. It exploits both the efficient gradient computation with the continuous adjoint method as well as the neural network Ansatz for the unknown material field. This new hybrid approach outperforms Physics-Informed Neural Networks and the classical adjoint optimization in settings of two and three-dimensional examples.
The New Setup in the Belgrade Low-Level and Cosmic-Ray Laboratory
Creators: name: Dragić, Aleksandar
name: Udovičić, Vladimir
name: Banjanac, Radomir
name: Joković, Dejan
name: Maletić, Dimitrije
name: Veselinović, Nikola
name: Savić, Mihailo
name: Puzović, Jovan
name: Aničin, Ivan V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The Belgrade underground laboratory consists of two interconnected spaces, a ground level laboratory and a shallow underground one, at 25 m.w.e.. The laboratory hosts a low-background gamma spectroscopy system and cosmic-ray muon detectors. With recently adopted digital data acquisition system it is possible to study simultaneously independent operation of two detector systems, as well as processes induced by cosmic-ray muons in germanium spectrometers. Characteristics and potentials of present experimental setup, together with some preliminary results for the flux of fast neutrons and stopped muons are reported.
description: 12 pages, 16 figures
Magnetic torque oscillations from warped helical surface states in topological insulators
Creators: name: Thalmeier, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A magnetic torque method is proposed that probes the warping and mass gap of Dirac cone surface states in topological insulators like Bi2X3 (X=Se,Te). A rotating field parallel to the surface induces a paramagnetic moment in the helical surface states for nonzero warping. It is non-collinear with the applied field and therefore produces torque oscillations as function of the field angle which are a direct signature of the surface states. The torque dependence on field strength and angle, the chemical potential and the Dirac cone parameters like warping strength and mass gap is calculated. It is shown that the latter leads to a symmetry reduction in the fourfold torque oscillations.
description: 6 pages, 4 figures
Stealing the Decoding Algorithms of Language Models
Creators: name: Naseh, Ali
name: Krishna, Kalpesh
name: Iyyer, Mohit
name: Houmansadr, Amir
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computation and Language (cs.CL)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: A key component of generating text from modern language models (LM) is the selection and tuning of decoding algorithms. These algorithms determine how to generate text from the internal probability distribution generated by the LM. The process of choosing a decoding algorithm and tuning its hyperparameters takes significant time, manual effort, and computation, and it also requires extensive human evaluation. Therefore, the identity and hyperparameters of such decoding algorithms are considered to be extremely valuable to their owners. In this work, we show, for the first time, that an adversary with typical API access to an LM can steal the type and hyperparameters of its decoding algorithms at very low monetary costs. Our attack is effective against popular LMs used in text generation APIs, including GPT-2, GPT-3 and GPT-Neo. We demonstrate the feasibility of stealing such information with only a few dollars, e.g., $\$0.8$, $\$1$, $\$4$, and $\$40$ for the four versions of GPT-3.
Cheimerius Smith 1938
Creators: name: Siddiqui, Pirzada Jamal
name: Amir, Shabir Ali
name: Masroor, Rafaqat
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Sparidae
Cheimerius

description: Genus Cheimerius Smith, 1938
 Cheimerius Smith [J. L. B.] 1938: 292.
 Diagnosis. Body moderately deep, compressed, head profile gently convex. No molariform teeth, 4–6 caniniform teeth at front of both jaws followed by a narrow band of small villiform teeth, the outer lateral series enlarged. The first two dorsal spines short, 3rd to 7th elongate (relatively shorter in adult). Scales on top of head reaching to beyond a line through middle of eye. Two valid species, one in Pakistani waters.
description: Published as part of Siddiqui, Pirzada Jamal, Amir, Shabir Ali & Masroor, Rafaqat, 2014, The sparid fishes of Pakistan, with new distribution records, pp. 71-100 in Zootaxa 3857 (1) on page 80, DOI: 10.11646/zootaxa.3857.1.3, http://zenodo.org/record/228181
Additional file 1 of Cannabinoid exposure as a major driver of pediatric acute lymphoid Leukaemia rates across the USA: combined geospatial, multiple imputation and causal inference study
Creators: name: Reece, Albert Stuart
name: Hulse, Gary Kenneth
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
Established Firms’ Strategic Decision Making when Faced with Low-End Disruptive Innovation
Creators: name: Osiyevskyy, Oleksiy
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Business Administration--Management
subject: business model
subject: innovation
subject: disruption
subject: real estate
subject: cognition

description: How should incumbent firms respond to emerging disruptive business model innovations (i.e., substantive changes in the way the value is created and appropriated) in their industries? Despite much discussion, the current literature provides no clear-cut answer. This lack of theoretical understanding is reflected in frequently observed in practice problem when established firms are unable to adapt to their industries’ disruptive changes. This sets the motivation for the current dissertation, aimed at advancing our understanding of the phenomenon of disruptive business model innovations. I intend to achieve this goal by addressing the following two research questions: (1) what are the optimal responses of established incumbent companies to disruptive business model innovations gaining momentum in their industries, and (2) what are the factors causing managers of incumbent companies to make different strategic choices in such situations? To address these questions, I unite existing views in a deductively developed model of incumbent response to disruptive business model innovations. Then, I build a dynamic behavioral model of incumbent firms’ responses. The model describes observed behavioral patterns in disrupted industries and explains incumbent actions and reasons why these actions might deviate from the rational paths. Also, I propose a rational response model, comprising a set of testable propositions regarding the contingency factors determining optimal incumbent actions when facing a disruptive business model innovation. Empirical parts of the dissertation are based on two surveys of incumbents facing low-end disruptive business model innovations in their industries – real estate brokerage and higher education.
Electromechanical tuning of vertically-coupled photonic crystal nanobeams
Creators: name: Midolo, L.
name: Yoon, S. N.
name: Pagliano, F.
name: Xia, T.
name: van Otten, F. W. M.
name: Lermer, M.
name: Höfling, S.
name: Fiore, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present the design, the fabrication and the characterization of a tunable one-dimensional (1D) photonic crystal cavity (PCC) etched on two vertically-coupled GaAs nanobeams. A novel fabrication method which prevents their adhesion under capillary forces is introduced. We discuss a design to increase the flexibility of the structure and we demonstrate a large reversible and controllable electromechanical wavelength tuning (> 15 nm) of the cavity modes.
description: 11 pages, 4 figures
Electron-phonon-scattering dynamics in ferromagnetic metals and its influence on ultrafast demagnetization processes
Creators: name: Essert, Sven
name: Schneider, Hans Christian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We theoretically investigate spin-dependent carrier dynamics due to the electron-phonon interaction after ultrafast optical excitation in ferromagnetic metals. We calculate the electron-phonon matrix elements including the spin-orbit interaction in the electronic wave functions and the interaction potential. Using the matrix elements in Boltzmann scattering integrals, the momentum-resolved carrier distributions are obtained by solving their equation of motion numerically. We find that the optical excitation with realistic laser intensities alone leads to a negligible magnetization change, and that the demagnetization due to electron-phonon interaction is mostly due to hole scattering. Importantly, the calculated demagnetization quenching due to this Elliot-Yafet type depolarization mechanism is not large enough to explain the experimentally observed result. We argue that the ultrafast demagnetization of ferromagnets does not occur exclusively via an Elliott-Yafet type process, i.e., scattering in the presence of the spin-orbit interaction, but is influenced to a large degree by a dynamical change of the band structure, i.e., the exchange splitting.
Quasiparticle dynamics in epitaxial Al-InAs planar Josephson junctions
Creators: name: Elfeky, Bassel Heiba
name: Strickland, William M.
name: Lee, Jaewoo
name: Farmer, James T.
name: Shanto, Sadman
name: Zarassi, Azarin
name: Langone, Dylan
name: Vavilov, Maxim G.
name: Levenson-Falk, Eli M.
name: Shabani, Javad
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quasiparticle (QP) effects play a significant role in the coherence and fidelity of superconducting quantum circuits. The Andreev bound states of high transparency Josephson junctions can act as low-energy traps for QPs, providing a mechanism for studying the dynamics and properties of both the QPs and the junction. We study the trapping and clearing of QPs from the Andreev bound states of epitaxial Al-InAs Josephson junctions incorporated in a superconducting quantum interference device (SQUID) galvanically shorting a superconducting resonator to ground. We use a neighboring voltage-biased Josephson junction to inject QPs into the circuit. Upon the injection of QPs, we show that we can trap and clear QPs when the SQUID is flux-biased. We examine effects of the microwave loss associated with bulk QP transport in the resonator, QP-related dissipation in the junction, and QP poisoning events. By monitoring the QP trapping and clearing in time, we study the dynamics of these processes and find a time-scale of few microseconds that is consistent with electron-phonon relaxation in our system and correlated QP trapping and clearing mechanisms. Our results highlight the QP trapping and clearing dynamics as well as the associated time-scales in high transparency Josephson junctions based fabricated on Al-InAs heterostructures.
Magneto-Electric Effects on Sr Z-type Hexaferrite at Room Temperature
Creators: name: Ebnabbasi, Khabat
name: Chen, Yajie
name: Geiler, Anton
name: Harris, Vincent
name: Vittoria, Carmine
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper, magnetoelectric effects of Sr Z-type hexaferrite, Sr3Fe24Co2O41, at room temperature is measured. The change in remanence magnetization was measured by applying a DC voltage or electric field across a slab of hexaferrite. Changes of ~ 18% in remanence was observed in an electric field of 10,000V/cm implying a similar change in the microwave permeability at frequencies below 3GHz. Also, a change in dielectric constant at 1 GHz of ~16% in a magnetic field of only 320 Oe was measured. In these types of measurements high resistivity is critical in order to reduce current flow in the hexaferrite. The resistivity of the hexaferrite was raised to 4.28x10^8 ohm-cm by annealing under oxygen pressure. The measurements indicate that indeed electric polarization and magnetization changes were induced by the application of magnetic and electric fields, respectively. The implications for microwave applications appear to be very promising at room temperature.
description: 8 pages, 3 figures, MMM conference and Journal of applied Physics
Oligocene - Miocene unroofing of the Pahvant Range and re-evaluation of the Tertiary Oak City Formation in the Canyon Range: Evidence of low-angle normal faulting in west-central Utah
Creators: name: McGlashing, Scott
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Thermochronology
subject: Low-angle normal fault
subject: Canyon Range
subject: Pahvant Range
subject: Oak City Formation
subject: Sevier Desert detachment

description: The gently west-dipping Sevier Desert reflector (SDR) in central Utah has long been at the center of a controversy about its nature. The reflector projects to surface along the western flanks of both the Canyon and Pahvant Ranges located on the eastern margin of the Sevier Desert basin. The lack of surface exposure has fueled the debate of the SDR representing either a detachment or an unconformity. Re-evaluation of the Tertiary Oak City Formation on the western margin of the Canyon Range indicates an underlying detachment confirmed by re-interpretation of seismic line Placid Line 1. New apatite (U-Th)/He data from the Pahvant Range sampled in three across-strike transects have cooling ages from 25.6 – 8.5 Ma, displaying a spatial pattern of younging towards the western range margin, consistent with extensional exhumation. Based on surficial mapping and thermochronology in this study, the SDR is interpreted as a detachment.
YIRIK BITIM INSTITUTI DOIRASIDA XO'JALIK JAMIYATLARI TOMONIDAN TUZILADIGAN O'ZARO BOG'LIQ BIR NECHTA BITIMLAR TUSHUNCHASI VA BELGILARI
Creators: name: Xusanova, Muxlisa
Publisher: name: Zenodo
Year: 2023

description: Xo'jalik jamiyatining yirik bitimini tuzish maqsadlari uchun xo'jalik jamiyatining bir nechta bitimlar to'plamini o'zaro bog'liq deb tasniflash masalasi ko'rib chiqiladi. Yirik bitimlar to'g'risidagi amaldagi qonun hujjatlari normalarini o'rganish orqali bitimlarni o'zaro bog'liqligini aniqlash mezonlari ko'rib chiqiladi.
Evaluating the cumulative impacts of air pollution in northeast British Columbia
Creators: name: Krzyzanowski, Judi
Publisher: name: University of British Columbia
Year: 2010

description: This research examined the potential cumulative impacts of air pollution in northeast British Columbia (BC). It was part of a larger project to develop tools for assessing the cumulative impacts of development in BC’s Treaty 8 traditional territory. Although this study was framed from a First Nations perspective, it has relevance to all residents of the region. The focus is on Criteria Air Contaminants (CAC); whose reporting in Canada is required based on contributions to acid rain, ozone and poor regional air quality. Air pollution in northeast BC is dominated by the upstream oil and gas (UOG) sector. An analysis of official emissions data and reporting policies showed that inventories severely underestimate UOG emission sources. Industry-based emission estimates were combined with a conventional government-based emissions inventory to give a more comprehensive dataset for the region. When CAC sources were considered inclusively and cumulatively across the region’s landscape, emissions of the CAC sulphur dioxide (SO₂), nitrogen oxides (NOx) and volatile organic compounds approximately doubled, reaching intensities comparable to urban areas. Due to the magnitude of SO₂ and NOx emissions, and their known contribution to the acidification of ecosystems in parts of Canada, the Critical Loads of Acidity (CL(A)) were estimated for freshwater lakes in the region. A scarcity of detailed lake chemistry data pre-empted the development of empirical methods for estimating CL(A). Alkalinity and calcium measurements were available for a significant number of lakes and were consequently used as indicators of acidification sensitivity using relationships between these parameters and existing CL(A) estimation procedures. The resulting CL(A) were used alongside Ambient Air Quality Objectives (AAQO) and critical limits for various ecosystem elements, as thresholds for measuring potential air pollution effects. The AERMOD model, traditionally used for simulating the dispersion of UOG emissions from individual sources in BC, was used here to predict ambient concentrations and surface deposition of both SO₂ and NOx from numerous emission sources in an area of both cultural significance and high source density. Results predicted potential threshold exceedances that may have implications for ecosystems, human health and First Nations Treaty rights.
A sharp lower bound for the first eigenvalue on Finsler manifolds
Creators: name: Wang, Guofang
name: Xia, Chao
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this paper, we give a sharp lower bound for the first (nonzero) Neumann eigenvalue of Finsler-Laplacian in Finsler manifolds in terms of diameter, dimension, weighted Ricci curvature.
description: 16 pages
Force Based Comparison Between Naïve and Activated CD4+ T Cells during Interaction with Dendritic Cells
Creators: name: ALGHAMDI, ENAAM
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: T CELLS
subject: DENDRITIC CELLS
subject: CD4+ T CELLS
subject: interactions
subject: Atomic Force Microscopy
subject: AFM
subject: LFA-1

description: Antigen recognition requires the communication between T cells and antigen presenting cells (APC) such as dendritic cells (DC). Although there is progress in understanding molecular components at the intercellular contact, the specific role of the physical cross-junctional adhesion between CD4+ T cells and DCs is not fully understood. In this study, we investigate cell-to-cell contact mediated by adhesion molecules between these cells in order to elicit the mechanism involved. Lymphocyte function-associated antigen-1 (LFA-1) adhesion molecule on the surface of T cells interacts with intracellular adhesion molecule-1 (ICAM-1) on the APC. This adhesion pair has been shown to be essential for the contact between the cells. The role of this adhesion pair and its expression and regulation on naïve CD4+ T cells has not been compared to its role on activated T cells. Using atomic force microscopy (AFM) we investigated the increase in interaction forces between naïve CD4+ T cells and DCs. These forces were compared to those involving activated T cells to see the difference between naïve and activated T cells in their adhesion properties with DCs, which involves LFA-1 integrin molecule. Understanding the role of LFA-1 interaction with ICAM-1 provides further insight into therapies using CD4+ T cells.
The 2011 outburst of the recurrent novaT Pyx. Evidence for a face-on bipolar ejection
Creators: name: Chesneau, Olivier
name: Meilland, A.
name: Banerjee, D. P. K.
name: Bouquin, Jean-Baptiste Le
name: Mcalister, H. A.
name: Millour, F.
name: Ridgway, S. T.
name: Spang, A.
name: Brummelaar, T. A. Ten
name: Wittkowski, M.
name: Ashok, N. M.
name: Benisty, M.
name: Berger, J. -P.
name: Boyajian, T. S.
name: Farrington, C.
name: Goldfinger, P. J.
name: Mérand, A.
name: Nardetto, N.
name: Petrov, R.
name: Rivinius, T.
name: Schaefer, G.
name: Zins, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report on near-IR interferometric observations of the outburst of the recurrent nova T Pyx. We obtained near-IR observations of T Pyx at dates ranging from t=2.37d to t=48.2d after the outburst, with the CLASSIC recombiner, located at the CHARA array, and with the PIONIER and AMBER recombiners, located at the VLTI array. These data are supplemented with near-IR photometry and spectra obtained at Mount Abu, India. Slow expansion velocities were measured (<300km/s) before t=20d (assuming D=3.5kpc). From t=28d on, the AMBER and PIONIER continuum visibilities (K and H band, respectively) are best simulated with a two component model consisting of an unresolved source plus an extended source whose expansion velocity onto the sky plane is lower than 700km/s. The expansion of the Brgamma line forming region, as inferred at t=28d and t=35d is slightly larger, implying velocities in the range 500-800km/s, still strikingly lower than the velocities of 1300-1600km/s inferred from the Doppler width of the line. Moreover, a remarkable pattern was observed in the Brgamma differential phases. A semi-quantitative model using a bipolar flow with a contrast of 2 between the pole and equator velocities, an inclination of i=15^{\circ} and a position angle P.A.=110^{\circ} provides a good match to the AMBER observables (spectra, differential visibilities and phases). At t=48d, a PIONIER dataset confirms the two component nature of the H band emission, consisting of an unresolved stellar source and an extended region whose appearance is circular and symmetric within error bars.These observations are most simply interpreted within the frame of a bipolar model, oriented nearly face-on. This finding has profound implications for the interpretation of past, current and future observations of the expanding nebula.
description: Accepted Astronomy and Astrophysics (2011)
Crenidens Valenciennes 1830
Creators: name: Siddiqui, Pirzada Jamal
name: Amir, Shabir Ali
name: Masroor, Rafaqat
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Sparidae
Crenidens

description: Genus Crenidens Valenciennes, 1830
 Crenidens Valenciennes [A.] in Cuvier & Valenciennes, 1830: 377.
 Diagnosis. Body oblong oval to deeper, a little compressed. Head moderate, upper profile of head in juveniles gently convex to dorsal fin origin. Mouth relatively small with two to three series of incisor-like teeth on both jaws, incisor-like teeth with five points well pointed initially but often worn out to form a flat cutting edge its outer teeth movable with brown edges and several rows of small molars inside of incisor-like teeth at posterior part of jaws (Iwatsuki & Maclaine, 2013). Preopercle flange naked, scalation on top of head not extending beyond vertical diameter of eye. Three valid species, one in Pakistani waters.
description: Published as part of Siddiqui, Pirzada Jamal, Amir, Shabir Ali & Masroor, Rafaqat, 2014, The sparid fishes of Pakistan, with new distribution records, pp. 71-100 in Zootaxa 3857 (1) on page 81, DOI: 10.11646/zootaxa.3857.1.3, http://zenodo.org/record/228181
Enabling Non-Linear Quantum Operations through Variational Quantum Splines
Creators: name: Inajetovic, Matteo Antonio
name: Orazi, Filippo
name: Macaluso, Antonio
name: Lodi, Stefano
name: Sartori, Claudio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The postulates of quantum mechanics impose only unitary transformations on quantum states, which is a severe limitation for quantum machine learning algorithms. Quantum Splines (QSplines) have recently been proposed to approximate quantum activation functions to introduce non-linearity in quantum algorithms. However, QSplines make use of the HHL as a subroutine and require a fault-tolerant quantum computer to be correctly implemented. This work proposes the Generalised Hybrid Quantum Splines (GHQSplines), a novel method for approximating non-linear quantum activation functions using hybrid quantum-classical computation. The GHQSplines overcome the highly demanding requirements of the original QSplines in terms of quantum hardware and can be implemented using near-term quantum computers. Furthermore, the proposed method relies on a flexible problem representation for non-linear approximation and it is suitable to be embedded in existing quantum neural network architectures. In addition, we provide a practical implementation of the GHQSplines using Pennylane and show that our model outperforms the original QSplines in terms of quality of fitting.
Additional file 1 of Vaping during the COVID-19 lockdown period in Belgium
Creators: name: Adriaens, Karolien
name: Van Gucht, Dinska
name: Van Lommel, Sven
name: Baeyens, Frank
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Additional file 1. Online questionnaire. The additional file contains the online questionnaire translated into English.
Spin Accumulation in Nondegenerate and Heavily Doped p-Type Germanium
Creators: name: Iba, S.
name: Saito, H.
name: Spiesser, A.
name: Watanabe, S.
name: Jansen, R.
name: Yuasa, S.
name: Ando, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin accumulation induced in p-type germanium from Fe/MgO tunnel contacts is studied as a function of hole concentration p (10^16 - 10^19 cm-3). For all p, the contacts are free of rectification and Schottky barrier, guaranteeing spin injection into the Ge and preventing spin accumulation enhancement by two-step tunneling via interface states. The observed spin accumulation is smallest for nondegenerate doping (p ~ 10^16 cm-3) and increases for heavily doped Ge. This trend is opposite to what is expected from spin injection and diffusion theory. For heavily doped Ge, the observed spin accumulation is orders of magnitude larger than predicted.
description: To appear in Appl. Phys. Express
Acute Stress Effects Over Time on the Stress Axis in the Carp (Cyprinus carpio) Brain
Creators: name: Pietsch, Constanze
name: Pawlak, Paulina
name: Konrad, Jonathan
Publisher: name: Wiley
Year: 2025
Subjects: acute stress
handling
research purposes
stressors

description: This study investigates gene expression profiles over time in the brain of juvenile carp subjected to several acute stressors, which have not yet been investigated in such detail in this fish species so far. A stress trial with carp was conducted aiming at identifying relevant differences in gene expressions 30, 60, and 90 min after treatment. Using quantitative real-time PCR, the expression of hypothalamic-pituitary-interrenal (HPI)-related axis genes and immediate early genes (IEGs) across four different brain parts (telencephalon, hypothalamus, optic tectum, rhombencephalon). Our findings show that acute stress resulted in pronounced effects on the gene expression patterns in all brain parts between control fish or fish sampled 30, 60, or 90 min after stress application. Furthermore, the gene regulation patterns in feed rewarded and feed control fish frequently show differences to the gene expression patterns of confined and air-exposed fish. These results provide new insights into the dynamics of stressinduced gene regulation in fish, emphasizing the complexity and specificity of the HPI axis response to different stressors over time.