cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An Approach to Make a Cost-Efficient, Lightweight and Eco-Friendly Heat and Energy Recovery Ventilator (HERV)
Creators: name: Antor, Saifuzzaman
name: Md Kazim Reza Chowdhury
name: Razi, Alim Al
Publisher: name: figshare
Year: 2019
Subjects: subject: 91505 Heat and Mass Transfer Operations
subject: FOS: Other engineering and technologies

description: Nowadays, throughout the whole world household air-conditioning is a matter of importance. As the air-conditioning system being costly, a number of people cannot afford it easily. In this paper, it is tried to find out if it is possible to make an air-conditioning system in a short budget. An existing design of a heat recovery ventilator has been taken and modified with new ideas. The designed heat exchanger, which is also an HVAC system gives up outgoing warm airs’ heat to incoming cold air in winter. During summer cool air blows through the heat exchanger stealing heat from incoming hot air and makes it cool. The main difference between an existing HERV and this one is the structural design. No gasket has been used. On the basis of cost and thermal conductivity, the material of the heat transferring plates is chosen whereas the material of the outside frames was selected according to its’ cost, being lightweight and ease of manufacturing. Geometrical data of plate and channel have been assumed. The number of required heat-conducting plates is determined with the help of spreadsheet program and the general physical model is made then. Experimentally the device is capable of changing around 6°C temperature with less power consumption by a manufacturing cost of USD 34.00 only.
Aspects of String-Gas Cosmology at Finite Temperature
Creators: name: Bassett, Bruce A.
name: Borunda, Monica
name: Serone, Marco
name: Tsujikawa, Shinji
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study string-gas cosmology in dilaton gravity, inspired by the fact that it naturally arises in a string theory context. Our main interest is the thermodynamical treatment of the string-gas and the resulting implications for the cosmology. Within an adiabatic approximation, thermodynamical equilibrium and a small, toroidal universe as initial conditions, we numerically solve the corresponding equations of motions in two different regimes describing the string-gas thermodynamics: (i) the Hagedorn regime, with a single scale factor, and (ii) an almost-radiation dominated regime, which includes the leading corrections due to the lightest Kaluza Klein and winding modes, with two scale factors. The scale factor in the Hagedorn regime exhibits very slow time evolution with nearly constant energy and negligible pressure. By contrast, in case (ii) we find interesting cosmological solutions where the large dimensions continue to expand and the small ones are kept undetectably small.
description: 21 pages, 5 eps figures
A Two-Parameter Model of Dispersion Aversion
Creators: name: Chambers, Robert G.
name: Grant, Simon
name: Polak, Ben
name: Quiggin, John
name: Chambers, Robert G.
name: Grant, Simon
name: Polak, Ben
name: Quiggin, John
Publisher: name: Unknown
Year: 2011
Subjects: subject: Risk and Uncertainty
subject: uncertainty aversion
subject: mean utility
subject: dispersion of utility
subject: weak-separability

description: The idea of representing choice under uncertainty as a trade-off between mean returns and some measure of risk or uncertainty is fundamental to the analysis of investment decisions. In this paper, we show that preferences can be characterized in this way, even in the absence of ob jective probabilities. We develop a model of uncertainty averse preferences that is based on a mean and a measure of the dispersion of the state-wise utility of an act. The dispersion measure exhibits positive linear homogeneity, sub-additivity, translation invariance and complementary symmetry. Since preferences are only weakly separable in terms of these two summary statistics, the uncertainty premium need not be constant. We show that the standard results originally derived in the context of mean-variance analysis and expected utility theory apply in this more generally setting. In particular, we generalize the concept of decreasing absolute risk aversion and show that the usual comparative static results from EU theory remain valid. Further we derive two-fund separation and asset pricing results analogous to those that hold for the standard CAPM.
Fast and Precise Light Curve Model for Transiting Exoplanets with Rings
Creators: name: Rein, Edan
name: Ofir, Aviv
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The presence of silicate material in known rings in the Solar System raises the possibility of ring systems existing even within the snow line -- where most transiting exoplanets are found. Previous studies have shown that the detection of exoplanetary rings in transit light curves is possible, albeit challenging. To aid such future detection of exoplanetary rings, we present the Polygon+Segments model for modelling the light curve of an exoplanet with rings. This high-precision model includes full ring geometry as well as possible ring transparency and the host star's limb darkening. It is also computationally efficient, requiring just a 1D integration over a small range, making it faster than existing techniques. The algorithm at its core is further generalized to compute the light curve of any set of convex primitive shapes in transit ({\it e.g.} multiple planets, oblate planets, moons, rings, combination thereof, etc.) while accounting for their overlaps. The python source code is made available.
description: 24 pages, 9 figures. Accepted for publication in MNRAS
Conformal Gravity and Transformations in the Symmetric Teleparallel Framework
Creators: name: Gakis, Viktor
name: Krššák, Martin
name: Said, Jackson Levi
name: Saridakis, Emmanuel N.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Conformal symmetries appear in many parts of physics and play a unique role in exploring the Universe. In this work, we consider the possibility of constructing conformal theories of gravity in the Symmetric Teleparallel Gravity framework, where gravitation is expressed through non-metricity rather than curvature or torsion. We demonstrate that it is possible to formulate a family of conformal theories with second-order field equations and have the metric tensor as the fundamental variable. Moreover, we consider the addition of a scalar field to the theory, and compare the results to the Teleparallel Gravity setting. Finally, we present the scalar-tensor representation of modified symmetric teleparallel theories, and amongst others, we show that there is an interesting sub-case that has the possibility of playing the role of dark energy.
description: 14 pages
Supplementary Information from Resilience: nitrogen limitation, mycorrhiza and long-term palaeoecological plant–nutrient dynamics
Creators: name: Bonsall, Michael B.
name: Froyd, Cynthia A.
name: Jeffers, Elizabeth S.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Ecosystem dynamics are driven by both biotic and abiotic processes, and perturbations can push ecosystems into novel dynamical regimes. Plant–plant, plant–soil and mycorrhizal associations all affect plant ecosystem dynamics; however, the direction and magnitude of these effects vary by context and their contribution to ecosystem resilience over long time periods remains unknown. Here, using a mathematical framework, we investigate the effects of plant feedbacks and mycorrhiza on plant–nutrient interactions. We show evidence for strong nutrient controlled feedbacks, moderation by mycorrhiza and influence on ecological resilience. We use this model to investigate the resilience of a longitudinal palaeoecological birch–δ15N interaction to plant–soil feedbacks and mycorrhizal associations. The birch–δ15N system demonstrated high levels of resilience. Mycorrhiza were predicted to increase resilience by supporting plant–nitrogen uptake and immobilizing excess nitrogen; in contrast, long-term enrichment in available nitrogen by plant–soil feedbacks is expected to decrease ecological resilience.
Intensity of Competition and the Number of Competitors
Creators: name: Menezes, Flavio
name: Quiggin, John
name: Menezes, Flavio
name: Quiggin, John
Publisher: name: Unknown
Year: 2011
Subjects: subject: Industrial Organization
subject: Competition intensity
subject: number of competitors
subject: mergers

description: We setup a model of competitive interaction among symmetric firms producing a homogeneous good that includes both Bertrand and Cournot competition as special cases. In our model the intensity of competition is captured by a single parameter - the perceived slope of competitors' supply functions. We show when the number of firms is fixed, total welfare increases monotonically with the degree of competition. We then examine how the intensity of competition affects the gains from changing the number of competitors. For very intense competition, most of the gains from extra competition are captured with the entry of a small number of firms and subsequent gains from entry are small. Conversely, when the intensity of competition is small, a reduction in the number of firms can have a large impact on welfare. We also examine the case when the intensity of competition is a function of the number of firms in the market and provide a sufficient condition for mergers to be profitable.
Outcomes of intraoperative versus preoperative ultrasound-guided wire localization of nonpalpable breast lesions
Creators: name: Wignarajah, Primeera
name: Papalouka, Vasiliki
name: Forouhi, Parto
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Research Article
breast cancer
breast conserving surgery
guidewire localization
intraoperative ultrasound
nonpalpable

description: Background: Nonpalpable breast lesions require localization, the gold standard for which is preoperative ultrasound-guided wire localization (PUGWL). Our unit also employs intraoperative ultrasound-guided wire localization (IUGWL). Here we evaluate PUGWL and IUGWL outcomes between 2014 and 2018. Primary outcomes were reoperation rates, complication rates and average specimen weights. Trainee feedback and cost analysis assessed IUGWL viability. Methods: Prospectively recorded data were collected. 511 patients were included (241 PUGWL and 270 IUGWL). Results: Reoperation rates: PUGWL 17.7% versus IUGWL 13.9% (p = 0.28). Complication rates: PUGWL 5.8% versus IUGWL 6.6% (p = 0.72). Average specimen weight: PUGWL 34.2 g versus IUGWL 24.3 g (p < 0.0001). Trainees needed 15 supervised cases to be IUGWL competent. Performing IUGWL saves £289 per localization. Conclusion: IUGWL outcomes are comparable to those of PUGWL. IUGWL is cost-effective, patient-friendly and easy to learn and replicate. IUGWL merits wider dissemination and further planned research.
String Theoretic Bounds on Lorentz-Violating Warped Compactification
Creators: name: Frey, Andrew R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider warped compactifications that solve the 10 dimensional supergravity equations of motion at a point, stabilize the position of a D3-brane world, and admit a warp factor that violates Lorentz invariance along the brane. This gives a string embedding of ``asymmetrically warped'' models which we use to calculate stringy (α') corrections to standard model dispersion relations, paying attention to the maximum speeds for different particles. We find, from the dispersion relations, limits on gravitational Lorentz violation in these models, improving on current limits on the speed of graviton propagation, including those derived from field theoretic loops. We comment on the viability of models that use asymmetric warping for self-tuning of the brane cosmological constant.
description: 20pg, JHEP3; v2 additional references, slight change to intro; v3. added reference
Entomocorus radiosus Reis & Borges 2006
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Auchenipteridae
Entomocorus
Entomocorus radiosus

description: Entomocorus radiosus Reis & Borges, 2006: 420, fig. 6.
Paratypes: 1 lot, 24 specimens —NUP 2216, 24, 23.3–39.5 mm SL: Brazil, Mato Grosso, Barão do Melgaço, Baía Sinhá Mariana, rio Cuiabá, 16°20’20.5”S, 55°54’10.3”W, Nupélia staff, 25 May 2000.
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 31, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
A Secure and Robust Scheme for Sharing Confidential Information in IoT Systems
Creators: name: Bu, Lake
name: Isakov, Mihailo
name: Kinsy, Michel A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: In Internet of Things (IoT) systems with security demands, there is often a need to distribute sensitive information (such as encryption keys, digital signatures, or login credentials, etc.) among the devices, so that it can be retrieved for confidential purposes at a later moment. However, this information cannot be entrusted to any one device, since the failure of that device or an attack on it will jeopardize the security of the entire network. Even if the information is divided among devices, there is still the danger that an attacker can compromise a group of devices and expose the sensitive information. In this work, we design and implement a secure and robust scheme to enable the distribution of sensitive information in IoT networks. The proposed approach has two important properties: (1) it uses Threshold Secret Sharing (TSS) to split the information into pieces distributed among all devices in the system - and so the information can only be retrieved collaboratively by groups of devices; and (2) it ensures the privacy and integrity of the information, even when attackers hijack a large number of devices and use them in concert - specifically, all the compromised devices can be identified, the confidentiality of information is kept, and authenticity of the secret can be guaranteed.
Supplementary Mathematical Details from From one pattern into another: analysis of turing patterns in heterogeneous domains via WKBJ
Creators: name: Krause, Andrew L.
name: Klika, Václav
name: Woolley, Thomas E.
name: Gaffney, Eamonn A.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: Pattern formation from homogeneity is well studied, but less is known concerning symmetry-breaking instabilities in heterogeneous media. It is non-trivial to separate observed spatial patterning due to inherent spatial heterogeneity from emergent patterning due to nonlinear instability. We employ WKBJ asymptotics to investigate Turing instabilities for a spatially heterogeneous reaction–diffusion system, and derive conditions for instability which are local versions of the classical Turing conditions. We find that the structure of unstable modes differs substantially from the typical trigonometric functions seen in the spatially homogeneous setting. Modes of different growth rates are localized to different spatial regions. This localization helps explain common amplitude modulations observed in simulations of Turing systems in heterogeneous settings. We numerically demonstrate this theory, giving an illustrative example of the emergent instabilities and the striking complexity arising from spatially heterogeneous reaction–diffusion systems. Our results give insight both into systems driven by exogenous heterogeneity, as well as successive pattern forming processes, noting that most scenarios in biology do not involve symmetry breaking from homogeneity, but instead consist of sequential evolutions of heterogeneous states. The instability mechanism reported here precisely captures such evolution, and extends Turing’s original thesis to a far wider and more realistic class of systems.
Jackiw-Rebbi states in interfaced binary waveguide arrays with Kerr nonlinearity
Creators: name: Tran, Truong X.
name: Nguyen, Hue M.
name: Duong, Dũng C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We systematically investigate the optical analogs of quantum relativistic Jackiw-Rebbi states in binary waveguide arrays in the presence of Kerr nonlinearity with both self-focusing and self-defocusing cases. The localized profiles of these nonlinear Jackiw-Rebbi states can be calculated exactly by using the shooting method. We show that these nonlinear Jackiw-Rebbi states have a very interesting feature which is totally different from all other well-known nonlinear localized structures, including optical solitons. Namely, the profiles of nonlinear JR states with higher peak amplitudes can totally envelope the ones with lower peak amplitudes. We demonstrate that media with the positive nonlinear coefficient can support stable Jackiw-Rebbi states for a wide range of peak amplitudes, whereas media with the negative nonlinear coefficient are only able to support Jackiw-Rebbi states with low peak amplitudes. A general rule for the detuning of nonlinear Jackiw-Rebbi states in binary waveguide arrays is found.
Recognising Colorectal Cancer in Primary Care
Creators: name: Calanzani, Natalia
name: Chang, Aina
name: Van Melle, Marije
name: Pannebakker, Merel M.
name: Funston, Garth
name: Walter, Fiona M.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Practical Approach
Practical Approaches to Cancer Care
Colorectal cancer
Early diagnosis
Faecal immunochemical test
Primary care

description: Abstract: Colorectal cancer (CRC) is the third most common cancer worldwide. Primary care professionals can play an important role in both prevention and early detection of CRC. Most CRCs are attributed to modifiable lifestyle factors, which can be addressed within primary care, and promotion of population-based screening programmes can aid early cancer detection in asymptomatic patients. Primary care professionals have a vital role in clinically assessing patients presenting with symptoms that may indicate cancer, as most patients with CRC first present with symptoms. These assessments are often challenging—many of the symptoms of CRC are non-specific and commonly occur in patients presenting with non-malignant disease. The range of options for investigating symptomatic patients in primary care is rapidly growing. Simple tests, such as faecal immunochemical testing (FIT), are now being used to guide decisions around referral for more invasive tests, such as colonoscopy, while direct access to specialist investigations is also becoming more common. Clinical decision support tools (CDSTs) which calculate cancer risk based on symptomatology, patient characteristics and test results can provide an additional resource to guide decisions on further investigation. This article explores the challenges of CRC prevention and detection from the primary care perspective, discusses current evidence-based approaches for CRC detection used in primary care (with examples from UK guidelines), and highlights emerging research which may likely alter practice in the future.
The Pion Velocity at Chiral Restoration and the Vector Manifestation
Creators: name: Harada, Masayasu
name: Kim, Youngman
name: Rho, Mannque
name: Sasaki, Chihiro
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the effects of Lorentz non-invariance on the physical pion velocity at the critical temperature $T_c$ in an effective theory of hidden local symmetry (HLS) with the "vector manifestation" fixed point. We match at a "matching scale" $Λ_M$ the axial-vector current correlator in the HLS with the one in the operator product expansion for QCD, and present the matching condition to determine the bare pion velocity. We find that the physical pion velocity, which is found to be one at $T=T_c$ when starting from the Lorentz invariant bare HLS, remains close to one with the Lorentz non-invariance, $v_π(T_c) = 0.83 - 0.99$. This result is quite similar to the pion velocity in dense matter.
description: 13 pages, discussions for clarifying the matching procedure are added
Simulations of starspot anomalies within TESS exoplanetary transit light curves -- I. The detection limits of starspot anomalies in TESS light curves
Creators: name: Tregloan-Reed, Jeremy
name: Unda-Sanzana, Eduardo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: 20573 simulations of planetary transits around spotted stars were conducted using the transit-starspot model, \texttt{PRISM}. In total 3888 different scenarios were considered using three different host star spectral types, M4V, M1V and K5V. The mean amplitude of the starspot anomaly was measured and compared to the photometric precision of the light curve, to determine if the starspot anomaly's characteristic "blip" was noticeable in the light curve. The simulations show that, starspot anomalies will be observable in TESS 2\,min cadence data. The smallest starspot detectable in TESS transit light curves has a radius of $\approx1900$\,km. The starspot detection limits for the three host stars are: $4900\pm1700$\,km (M4V), $13800\pm6000$\,km (M1V) and $15900\pm6800$\,km (K5V). The smallest change in flux of the starspot ($ΔF_\mathrm{spot} = 0.00015\pm0.00001$) can be detected when the ratio between the planetary and stellar radii, $k = 0.082\pm0.004$. The results confirm known dependencies between the amplitude of the starspot anomaly and the photometric parameters of the light curve. The results allowed the characterisation of the relationship between the change in flux of the starspot anomaly and the change in flux of the planetary transit for TESS transit light curves.
description: 24 Pages, 12 Figures. Accepted for publication in A&A, section 10. Planets and planetary systems
Additional file 1 of An injectable, self-healing, electroconductive hydrogel loaded with neural stem cells and donepezil for enhancing local therapy effect of spinal cord injury
Creators: name: Liu, Tiemei
name: Zhang, Qiang
name: Li, Hongru
name: Cui, Xiaoqian
name: Qi, Zhiping
name: Yang, Xiaoyu
Publisher: name: figshare
Year: 2023
Subjects: Biochemistry
Space Science
Medicine
Neuroscience
Pharmacology
Biotechnology
Biological Sciences not elsewhere classified
Developmental Biology

description: Additional file 1.
Sipha (Rungsia) maydis Passerini 1860
Creators: name: Halbert, Susan E.
name: Miller, Gary L.
name: Ames, Lisa M.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aphididae
Sipha
Sipha maydis

description: Sipha (Rungsia) maydis Passerini 1860 (Fig. 12–15)
 This species is known to be a pest of cereal crops, particularly in drier/warmer climates. It is reported to be a vector of the BYD virus complex (El Yamani and Hill 1991) and can cause direct feeding damage (Fig 12 – 13). It is reported throughout the Mediterranean region, into Central and South Asia, South Africa, and South America (Blackman and Eastop 2000, 2006; Corrales et al. 2007). This species is recognized easily by its black color and completely sclerotized dorsum.
 This species was discovered in North America in California in 2007 (Sorensen 2007). It was found in Georgia in November 2012 on wheat in a greenhouse (observation by LMA, FSCA# E2012-9123). Sipha maydis also has been intercepted at the Florida Agricultural Interdiction Stations as phoretic alatae on lettuce from California in 2011 and 2012 (FSCA#s E2011-5477, E2012-3133, E2012-3195). The New World and African records indicate that this species probably moves readily in commerce.
description: Published as part of Halbert, Susan E., Miller, Gary L. & Ames, Lisa M., 2013, The genus Sipha Passerini (Hemiptera: Aphididae) in North America, pp. 1-6 in Insecta Mundi 2013 (326) on page 3, DOI: 10.5281/zenodo.5178363
Cutting through complexity: the Breathing, Thinking, Functioning clinical model is an educational tool that facilitates chronic breathlessness management
Creators: name: Spathis, Anna
name: Burkin, Julie
name: Moffat, Catherine
name: Tuffnell, Rachel
name: Barclay, Stephen
name: Mant, Jonathan
name: Booth, Sara
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Brief Communication
/692/1807/1809
/692/700/784
/692/700/228/415
brief-communication

description: Abstract: Chronic breathlessness is a distressing symptom that is challenging to manage. The Breathing, Thinking, Functioning clinical model is an educational tool developed to support breathlessness management. Health professionals report that the model increases clinician and patient understanding of this complex symptom, and provides a simple and structured approach to personalised self-management.
Canadian Food Dollar: Breakdown between Farm and Marketing Costs
Creators: name: Kelly, Jessica
name: Weersink, Alfons
name: Cranfield, John
name: Kelly, Jessica
name: Weersink, Alfons
name: Cranfield, John
Publisher: name: Unknown
Year: 2013
Subjects: subject: Demand and Price Analysis
subject: Food dollar
subject: farm share
subject: marketing bill
subject: marketing margin

description: This poster assesses the breakdown of the Canadian food dollar between farm and marketing costs. It uses input-output methods, comparable to those used by the Economic Research Service (ERS), in order to allow for Canadian-American comparison. The farm share and marketing bill provide a valuable snapshot of the dynamics of the agri-food supply chain, changing consumer demands, and the resultant value distribution of the retail food dollar.
Upper bounds for Fourier decay rates of fractal measures
Creators: name: Du, Xiumin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: For spherical and parabolic averages of the Fourier transform of fractal measures, we obtain new upper bounds on rates of decay by an "intermediate dimension" trick.
description: 19 pages
Renormalized scalar propagator around a dispiration
Creators: name: De Lorenci, V. A.
name: Moreira,, E. S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The renormalized Feynman propagator for a scalar field in the background of a cosmic dispiration (a disclination plus a screw dislocation) is derived, opening a window to investigate vacuum polarization effects around a cosmic string with dislocation, as well as in the bulk of an elastic solid carrying a dispiration. The use of the propagator is illustrated by computing vacuum fluctuations. In particular it is shown that the dispiration polarizes the vacuum giving rise to an energy momentum tensor which, as seen from a local inertial frame, presents non vanishing off-diagonal components. Such a new effect resembles that where an induced vacuum current arises around a needle solenoid carrying a magnetic flux (the Aharonov-Bohm effect), and may have physical consequences. Connections with a closely related background, namely the spacetime of a spinning cosmic string, are briefly addressed.
description: 7 pages, 5 figures. This revised version (to appear in the journal) includes evaluation of the energy momentum tensor
A Review on Detection and Performance Analysis on RR Interval Methods for ECG
Creators: name: Mayapur, Priyanka
Publisher: name: figshare
Year: 2019
Subjects: subject: 90303 Biomedical Instrumentation
subject: FOS: Medical engineering
subject: 90399 Biomedical Engineering not elsewhere classified
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 99902 Engineering Instrumentation
subject: FOS: Other engineering and technologies

description: Electrocardiogram (ECG)is a signal that records the electrical performance of the heart. A reliable, real time analysis of ECG and its considerate features is a necessary prerequisite for monitoring R-R Interval, hence HRV and cardiovascular control. The work proposed in this paper reviews the various methods used to detect the R-R interval and its related features that summarizes the various techniques used by researchers and also provides generic advantages about the various methods used. The processing of the data was done on the Lead-II ECG signals and on a tool called as Matlab.
Land Reform in NE Brazil: a stochastic frontier production efficiency evaluation
Creators: name: Magalhaes, Marcelo Marques De
name: Souza Filho, Hildo Meirelles De
name: Sousa, Miguel Rocha De
name: Silveira, José Maria F. J. Da
name: Buainain, Antonio Marcio
name: Magalhaes, Marcelo Marques De
name: Souza Filho, Hildo Meirelles De
name: Sousa, Miguel Rocha De
name: Silveira, José Maria F. J. Da
name: Buainain, Antonio Marcio
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Land Reform
subject: Human Capital
subject: Technical Assistance
subject: Rural Credit
subject: Stochastic Frontier

description: The aim of this paper is to address the sources of technical and allocative inefficiency from a cross section sample of 308 beneficiaries of a market assisted land reform program, called “Cédula da Terra” from five states in Northeastern region of Brazil. In spite of some differences on governance of the “Cédula da Terra” in comparison with traditional expropriation land reform program, studies carried by Buainain et al. (2002) have shown small differences between then, regarding their social and economic characteristics. We believe that our results could be useful to identify the main problems of Brazilian land reform settlements. We estimated a potential production frontier following the methodology of Battese and Coelli (1995), Coelli et al. (1998) and applied econometric techniques to explain inefficiency. The results indicate the existence of technical and allocative inefficiency, which is identified mostly in situations where the presence of production for consumption is high. This is a result that shows how immature the agriculture activity is in most of Cédula da Terra Program settlements and the difficulty to overcome the limitations imposed by the initial condition of formation of agrarian reform, primarily in Northeastern region of Brazil.
Boson-fermion stars: exploring different configurations
Creators: name: Henriques, Alfredo B.
name: Mendes, Luis E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use the flexibility of the concept of a fermion-boson star to explore different configurations, ranging from objects of atomic size and masses of the order $10^{18}$ g, up to objects of galactic masses and gigantic halos around a smaller core, with possible interesting applications to astrophysics and cosmology, particularly in the context of dark matter.
description: 8 pages. Minor changes, new reference added and a few typos corrected
Strongly Absorbing Nanoscale Infrared Domains within Graphene Bubbles
Creators: name: Vincent, Tom
name: Hamer, Matthew
name: Grigorieva, Irina
name: Antonov, Vladimir
name: Tzalenchuk, Alexander
name: Kazakova, Olga
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Graphene has shown great potential for modulating infrared (IR) light in devices as small as 350 nm. At these length scales, nanoscale features of devices, and their interaction with light, can be expected to play a significant role in device performance. Bubbles in van der Waals heterostructures are one such feature, which have recently attracted considerable attention thanks to their ability to modify the optoelectronic properties of 2D materials through strain. Here we use scattering-type scanning near-field optical microscopy (sSNOM) to measure the nanoscale IR response from a network of variously shaped bubbles in hexagonal boron nitride (hBN)-encapsulated graphene. We show that within individual bubbles there are distinct domains with strongly enhanced IR absorption. We correlate this with strain in the graphene, found with confocal Raman microscopy and vector decomposition analysis. This reveals intricate and varied strain configurations, in which bubbles of different shape induce more bi- or uniaxial strain configurations. Ridges in the bubbles, seen by atomic force microscopy (AFM), coincide with the domain boundaries, which leads us to attribute the domains to nanoscale strain differences in the graphene. This reveals pathways towards future strain-based graphene IR devices.
An agent-based model clarifies the importance of functional and developmental integration in shaping brain evolution
Creators: name: Avin, Shahar
name: Currie, Adrian
name: Montgomery, Stephen H.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Research Article
Brain structure
Brain size
Constraint
Concerted evolution
Mosaic evolution
Neuro-evo-devo

description: Abstract: Background: Vertebrate brain structure is characterised not only by relative consistency in scaling between components, but also by many examples of divergence from these general trends.. Alternative hypotheses explain these patterns by emphasising either ‘external’ processes, such as coordinated or divergent selection, or ‘internal’ processes, like developmental coupling among brain regions. Although these hypotheses are not mutually exclusive, there is little agreement over their relative importance across time or how that importance may vary across evolutionary contexts. Results: We introduce an agent-based model to simulate brain evolution in a ‘bare-bones’ system and examine dependencies between variables shaping brain evolution. We show that ‘concerted’ patterns of brain evolution do not, in themselves, provide evidence for developmental coupling, despite these terms often being treated as synonymous in the literature. Instead, concerted evolution can reflect either functional or developmental integration. Our model further allows us to clarify conditions under which such developmental coupling, or uncoupling, is potentially adaptive, revealing support for the maintenance of both mechanisms in neural evolution. Critically, we illustrate how the probability of deviation from concerted evolution depends on the cost/benefit ratio of neural tissue, which increases when overall brain size is itself under constraint. Conclusions: We conclude that both developmentally coupled and uncoupled brain architectures can provide adaptive mechanisms, depending on the distribution of selection across brain structures, life history and costs of neural tissue. However, when constraints also act on overall brain size, heterogeneity in selection across brain structures will favour region specific, or mosaic, evolution. Regardless, the respective advantages of developmentally coupled and uncoupled brain architectures mean that both may persist in fluctuating environments. This implies that developmental coupling is unlikely to be a persistent constraint, but could evolve as an adaptive outcome to selection to maintain functional integration.
Baer--Suzuki theorem for the $π$-radical
Creators: name: Yang, Nanying
name: Revin, Danila O.
name: Vdovin, Evgeny P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20D25, 20D05, 20E45

description: In the paper we prove (modulo the classification of finite simple groups) an analogue of the famous Baer-Suzuki theorem for the $π$-radical of a finite group, where $π$ is a set of primes
A Literature Survey on Heart Rate Variability and its Various Processing and Analyzing Techniques
Creators: name: Mayapur, Priyanka
Publisher: name: figshare
Year: 2019
Subjects: subject: 90303 Biomedical Instrumentation
subject: FOS: Medical engineering
subject: 90304 Medical Devices
subject: 99902 Engineering Instrumentation
subject: FOS: Other engineering and technologies

description: Human heart being the electro-mechanical pump supplies blood via a cardiovascular network. Its rhythmic beating gives rise to a pattern which when recorded can be used to find out the functionality of a heart. The diagnostic tool is called as Electrocardiogram (ECG) and its tracing contains a lot of attributes whose proper analysis may detect any cardiac peculiarity. Among them, is an entity called as the beat-to-beat interval (R-R interval). The analysis of beat to beat fluctuations of heart rate is known as heart rate variability (HRV) which is a concise marker to study the health of the heart along with a lot of measures clinically. This paper talks about the importance of the HRV and the various processing yet analysis techniques used to calculate the HRV by researchers.
Phenacorhamdia cabocla Rocha, Ramos & Ramos 2018
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Heptapteridae
Phenacorhamdia
Phenacorhamdia cabocla

description: Phenacorhamdia cabocla Rocha, Ramos & Ramos, 2018: 355, fig. 1.
Paratype s: 1 lot, 8 specimens —NUP 16300, 8, 41.3–43.5 mm SL: Brazil, Maranhão, Santa Filomena, rio Atalaia, rio Parnaíba basin, 09°04’30”S, 45°55’35.5”W, Gerpel team, 01 Aug 2013.
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 32, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
Yield ratio of neutrons to protons in $^{12}C(d,n)^{13}$N and $^{12}C(d,p)^{13}$C from 0.6 MeV to 3 MeV
Creators: name: Li, W. J.
name: Ma, Y. G.
name: Zhang, G. Q.
name: Deng, X. G.
name: Huang, M. R.
name: Bonasera, A.
name: Fang, D. Q.
name: Cao, J. Q.
name: Deng, Q.
name: Wang, Y. Q.
name: Lei, Q. T.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The neutron yield in $^{12}$C(d,n)$^{13}$N and the proton yield in $^{12}C(d,p)^{13}$C have been measured by deuteron beam from 0.6 MeV to 3 MeV which is delivered from a 4-MeV electro static accelerator bombarding on the thick carbon target. The neutrons are detected at $0\degree$, $24\degree$, $48\degree$ and the protons at $135\degree$ in the lab frame. The ratios of the neutron yield to the proton one have been calculated and can be used as an effective probe to pin down the resonances. The resonances are found at 1.4 MeV, 1.7 MeV, 2.5 MeV in $^{12}C(d,p)^{13}$C and at 1.6 MeV, 2.7 MeV in $^{12}$C(d,n)$^{13}$N. This method provides a way to reduce the systematic uncertainty and helps to confirm more resonances in compound nuclei.
description: 7 pages, 2 tables, 6 pages; submitted to Nuclear Science and Techniques (http://link.springer.com/journal/41365)
R-parity violation effect on the top-quark pair production at linear colliders
Creators: name: Lei, Wang
name: Wen-Gan, Ma
name: Hong-Sheng, Hou
name: Ren-You, Zhang
name: Yan-Bin, Sun
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate in detail the effects of the R-parity lepton number violation in the minimal supersymmetric standard model (MSSM) on the top-quark pair production via both $e^--e^+$ and $γ-γ$ collision modes at the linear colliders. We find that with the present experimental constrained $\rlap/{R}$ parameters, the effect from $\rlap/{R}$ interactions on the processes $e^+e^-\to t\bar{t}$ and $e^+e^- \to γγ\to t\bar{t}$ could be significant and may reach -30% and several percent, respectively. Our results show that the $\rlap/{R}$ effects are sensitive to the c.m.s. energy and the relevant $\rlap/{R}$ parameters. However, they are not sensitive to squark and slepton masses when $m_{\tilde{q}} \geq 400 GeV$ (or $m_{\tilde{l}} \geq 300 GeV$) and are almost independent on the $\tanβ$
description: Accepted by Phys.Rev.D
Toward a comparative anthropology of activism: activist identity formations in Germany and Uganda
Creators: name: Podgornik-Jakil, Žiga
name: Bens, Jonas
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Humanitarianism
subject: Human rights
subject: Political activism
subject: European “refugee crisis”
subject: Transitional justice
subject: 300 Sozialwissenschaften::320 Politikwissenschaft::320 Politikwissenschaft

description: There is an ongoing debate in anthropology on the kinds of subject positions activists ascribe to the marginalized actors they encounter and the political consequences this brings about. Drawing from ethnographic research on refugee activism in Germany and transitional justice activism in Uganda, we revisit the respective debates on humanitarian activism, human rights activism, and political activism and argue to reframe the analysis. Instead of looking for the “right” subject position activists should ascribe to the people they engage with, the anthropology of activism should embrace a research approach that looks at the material conditions, in which activists and their subjects find themselves in and the kind of agency they are able to develop within these conditions.
The Cost of Producing Milk in Connecticut: An Overview
Creators: name: Bravo-Ureta, Boris E.
name: Jelliffe, Jeremy
name: Rabinowitz, Adam
name: Meader, Joyce
name: Meinert, Richard
name: Bonelli, Joseph
name: Andrew, Sheila
name: Bravo-Ureta, Boris E.
name: Jelliffe, Jeremy
name: Rabinowitz, Adam
name: Meader, Joyce
name: Meinert, Richard
name: Bonelli, Joseph
name: Andrew, Sheila
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: dairy
subject: Connecticut

description: The Spring 2012 letter to State dairy farmers from the Commissioner of Agriculture stated: -The Connecticut Dairy sustainability program relies on cost of production (COP) estimates, historically provided by the USDA -The Act states that when the federal pay price for milk drops bellow the sustainable monthly COP, farmers become eligible for financial support in the form of grant payments given on a quarterly basis -These grant payments are determined using the best available COP estimates-The USDA does not provide monthly COP estimates for CT, so numbers from the State of Vermont have been used as a proxy for CT -These numbers likely do not reflect the true COP in the State -This project was implemented to produce accurate COP estimates for CT dairy famers, so they receive the appropriate level of support
title: Great Britain Ministry of Information - Daily Press Notices and Bulletins (1944-06-18)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1944
Subjects: subject: World War, 1939-1945 – Social aspects
subject: World War, 1939-1945 -- History
subject: World War II
subject: Second World War
subject: World War Two
subject: Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
title: Great Britain Ministry of Information - Daily Press Notices and Bulletins (1944-06-19)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1944
Subjects: subject: World War, 1939-1945 – Social aspects
subject: World War, 1939-1945 -- History
subject: World War II
subject: Second World War
subject: World War Two
subject: Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Generalized Uncertainty Principle and Dark Matter
Creators: name: Chen, Pisin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There have been proposals that primordial black hole remnants (BHRs) are the dark matter, but the idea is somewhat vague. Recently we argued that the generalized uncertainty principle (GUP) may prevent black holes from evaporating completely, in a similar way that the standard uncertainty principle prevents the hydrogen atom from collapsing. We further noted that the hybrid inflation model provides a plausible mechanism for production of large numbers of small black holes. Combining these we suggested that the dark matter might be composed of Planck-size BHRs. In this paper we briefly review these arguments, and discuss the reheating temperature as a result of black hole evaporation.
description: Contributed to the Proceedings of International Symposium on Frontiers of Science in Celebration of the 80th Birthday of Chen Ning Yang, June 17-19, 2002, Beijing, China