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Journal articles on the topic 'COSMIC function points'

Author: Grafiati

Published: 4 June 2025

Last updated: 15 July 2025

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1

Jayasri, Angara, Prasad Srinivas, and Sridevi Gutta. "Towards Benchmarking User Stories Estimation with COSMIC Function Points-A Case Example of Participant Observation." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 5 (2018): 3076–83. https://doi.org/10.11591/ijece.v8i5.pp3076-3083.

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Shorter time-to-market and unstable requirements is leading to introduction of Agile and DevOps practices. Story point estimation is becoming handier in Agile/DevOps setting. However, developing user stories and defining sizing unit in terms of story point is subjective process. It lacks benchmarking/standardization in terms of sizing measure and productivity of historical data. COSMIC has been considered as FSM (Functional Size Method). It has flexibility to receive requirements as User stories (popular Agile/Devops method) and derive COSMIC functional units using parametric approach. COSMIC

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Lavazza, Luigi. "An evaluation of the statistical convertibility of Function Points into COSMIC Function Points." Empirical Software Engineering 19, no. 4 (2013): 1075–110. http://dx.doi.org/10.1007/s10664-013-9246-z.

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3

Abualkishik, Abedallah Zaid, and Luigi Lavazza. "IFPUG Function Points to COSMIC Function Points convertibility: A fine-grained statistical approach." Information and Software Technology 97 (May 2018): 179–91. http://dx.doi.org/10.1016/j.infsof.2018.01.012.

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Lavazza, Luigi, and Sandro Morasca. "Convertibility of Function Points into COSMIC Function Points: A study using Piecewise Linear Regression." Information and Software Technology 53, no. 8 (2011): 874–84. http://dx.doi.org/10.1016/j.infsof.2011.02.005.

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Ziema, Mushtaq*1 &. Prof. Abdul Wahid2. "EFFECTIVENESS OF COSMIC FUNCTION POINTS FOR MOBILE APPLICATION DEVELOPMENT: A CRITICAL REVIEW." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 5, no. 10 (2018): 169–76. https://doi.org/10.5281/zenodo.1476481.

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<strong>Context</strong>. With the increased complexity in mobile applications, many challenges and issues emerged for project management to develop mobile applications effectively and accurately. Among these challenges Effort Estimation, is one of the critical issues faced by software project management team in general and mobile application management team in particular. Effort estimation helps software development team to approximate the cost required for the successful software application development. In order to perform mobile effort estimation, COSMIC estimation approach is followed. CO

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Angara, Jayasri, Srinivas Prasad, and Gutta Sridevi. "Towards Benchmarking User Stories Estimation with COSMIC Function Points-A Case Example of Participant Observatio." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 5 (2018): 3076. http://dx.doi.org/10.11591/ijece.v8i5.pp3076-3083.

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Shorter time-to-market and unstable requirements is leading to introduction of Agile and DevOps practices. Story point estimation is becoming handier in Agile/DevOps setting. However, developing user stories and defining sizing unit in terms of story point is subjective process. It lacks benchmarking/standardization in terms of sizing measure and productivity of historical data. COSMIC has been considered as FSM (Functional Size Method). It has flexibility to receive requirements as User stories (popular Agile/Devops method) and derive COSMIC functional units using parametric approach. COSMIC

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Shim, J., S. Codis, C. Pichon, D. Pogosyan, and C. Cadiou. "The clustering of critical points in the evolving cosmic web." Monthly Notices of the Royal Astronomical Society 502, no. 3 (2021): 3885–910. http://dx.doi.org/10.1093/mnras/stab263.

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ABSTRACT Focusing on both small separations and baryonic acoustic oscillation scales, the cosmic evolution of the clustering properties of peak, void, wall, and filament-type critical points is measured using two-point correlation functions in ΛCDM dark matter simulations as a function of their relative rarity. A qualitative comparison to the corresponding theory for Gaussian random fields allows us to understand the following observed features: (i) the appearance of an exclusion zone at small separation, whose size depends both on rarity and signature (i.e. the number of negative eigenvalues)

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AZIZI, TAHEREH, and EMAD YARAIE. "COSMOLOGICAL DYNAMICS OF MODIFIED GRAVITY WITH A NONMINIMAL CURVATURE-MATTER COUPLING." International Journal of Modern Physics D 23, no. 02 (2014): 1450021. http://dx.doi.org/10.1142/s0218271814500217.

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We perform a phase space analysis of a nonminimally coupled modified gravity theory with the Lagrangian density of the form [Formula: see text], where f1(R) and f2(R) are arbitrary functions of the curvature scalar R and [Formula: see text] is the matter Lagrangian density. We apply the dynamical system approach to this scenario in two particular models. In the first model we assume f1(R) = 2R with a general form for f2(R) and set favorable values for effective equation of state parameter which is related to the several epochs of the cosmic evolution and study the critical points and their sta

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SPINELLY, J., and E. R. BEZERRA DE MELLO. "VACUUM POLARIZATION BY A MAGNETIC FLUX TUBE AT FINITE TEMPERATURE IN THE COSMIC STRING SPACE–TIME." International Journal of Modern Physics D 18, no. 01 (2009): 53–70. http://dx.doi.org/10.1142/s0218271809014273.

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In this paper, we analyze the effect produced by the temperature in the vacuum polarization associated with a charged massless scalar field in the presence of a magnetic flux tube in the cosmic string space–time. Three different configurations of magnetic fields are taken into account: (i) a homogeneous field inside the tube, (ii) a field proportional to 1/r, and (iii) a cylindrical shell with δ-function. In these three cases, the axis of the infinitely long tube of radius R coincides with the cosmic string. Because of the complexity of this analysis in the region inside the tube, we consider

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Blakeslee, John P. "Cosmic distances from surface brightness fluctuations." Proceedings of the International Astronomical Union 8, S289 (2012): 304–11. http://dx.doi.org/10.1017/s174392131202159x.

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AbstractHigh spatial-resolution measurements of surface brightness fluctuations (SBFs) with the Hubble Space Telescope (HST) provide the most precise distances available to early-type galaxies beyond the Local Group. The observable SBF magnitude in a given bandpass is a basic property of any stellar system, corresponding to a ratio of the first and second moments of the stellar luminosity function. Calibration of the method has presented challenges, but we now have an excellent empirical determination of how the SBF observable varies with galaxy color in broad bandpasses at the red end of the

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Sabti, Nashwan, Julian B. Muñoz, and Diego Blas. "New Roads to the Small-scale Universe: Measurements of the Clustering of Matter with the High-redshift UV Galaxy Luminosity Function." Astrophysical Journal Letters 928, no. 2 (2022): L20. http://dx.doi.org/10.3847/2041-8213/ac5e9c.

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Abstract The epochs of cosmic dawn and reionization present promising avenues for understanding the role of dark matter (DM) in our cosmos. The first galaxies that populated the universe during these eras resided in DM halos that were much less massive than their counterparts today. Consequently, observations of such galaxies can provide us with a handle on the clustering of DM in an otherwise currently inaccessible regime. In this work, we use high-redshift UV galaxy luminosity function (UV LF) data from the Hubble Space Telescope to study the clustering properties of DM at small scales. In p

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Heidbüchel, I., A. Güntner, and T. Blume. "Use of cosmic ray neutron sensors for soil moisture monitoring in forests." Hydrology and Earth System Sciences Discussions 12, no. 9 (2015): 9813–64. http://dx.doi.org/10.5194/hessd-12-9813-2015.

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Abstract. Cosmic ray neutron sensors (CRS) are a promising technique to measure soil moisture at intermediate scales. To convert neutron counts to average volumetric soil water content a simple calibration function can be used (the N0-calibration of Desilets et al., 2010). This calibration function is based on soil water content derived directly from soil samples taken within the footprint of the sensor. We installed a CRS in a mixed forest in the lowlands of north-eastern Germany and calibrated it 10 times throughout one calendar year. Each calibration with the N0-calibration function resulte

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Vink, Jorick S., Erin R. Higgins, Andreas A. C. Sander, and Gautham N. Sabhahit. "Maximum black hole mass across cosmic time." Monthly Notices of the Royal Astronomical Society 504, no. 1 (2021): 146–54. http://dx.doi.org/10.1093/mnras/stab842.

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ABSTRACT At the end of its life, a very massive star is expected to collapse into a black hole (BH). The recent detection of an 85 M⊙ BH from the gravitational wave event GW 190521 appears to present a fundamental problem as to how such heavy BHs exist above the approximately 50 M⊙ pair-instability (PI) limit where stars are expected to be blown to pieces with no remnant left. Using mesa, we show that for stellar models with non-extreme assumptions, 90–100 M⊙ stars at reduced metallicity ($Z/\mbox{ $\mathrm{Z}_{\odot }$}\le 0.1$) can produce blue supergiant progenitors with core masses suffici

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Heidbüchel, Ingo, Andreas Güntner, and Theresa Blume. "Use of cosmic-ray neutron sensors for soil moisture monitoring in forests." Hydrology and Earth System Sciences 20, no. 3 (2016): 1269–88. http://dx.doi.org/10.5194/hess-20-1269-2016.

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Abstract. Measuring soil moisture with cosmic-ray neutrons is a promising technique for intermediate spatial scales. To convert neutron counts to average volumetric soil water content a simple calibration function can be used (the N0-calibration of Desilets et al., 2010). The calibration is based on soil water content derived directly from soil samples taken within the footprint of the sensor. We installed a cosmic-ray neutron sensor (CRS) in a mixed forest in the lowlands of north-eastern Germany and calibrated it 10 times throughout one calendar year. Each calibration with the N0-calibration

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Pacif, S. K. J., Md Salahuddin Khan, L. K. Paikroy, and Shalini Singh. "An accelerating cosmological model from a parametrization of Hubble parameter." Modern Physics Letters A 35, no. 05 (2019): 2050011. http://dx.doi.org/10.1142/s021773232050011x.

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In view of late-time cosmic acceleration, a dark energy cosmological model is revisited wherein Einstein’s cosmological constant is considered as a candidate of dark energy. Exact solution of Einstein field equations (EFEs) is derived in a homogeneous isotropic background in classical general relativity. The solution procedure is adopted in a model-independent way (or the cosmological parametrization). A simple parametrization of the Hubble parameter (H) as a function of cosmic time t is considered which yields an exponential type of evolution of the scale factor (a) and also shows a negative

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Abdallah, Ammar, Alain Abran, Munthir Qasaimeh, Malik Qasaimeh, and Bashar Abdallah. "Measurement of the Functional Size of Web Analytics Implementation: A COSMIC-Based Case Study Using Machine Learning." Future Internet 17, no. 7 (2025): 280. https://doi.org/10.3390/fi17070280.

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To fully leverage Google Analytics and derive actionable insights, web analytics practitioners must go beyond standard implementation and customize the setup for specific functional requirements, which involves additional web development efforts. Previous studies have not provided solutions for estimating web analytics development efforts, and practitioners must rely on ad hoc practices for time and budget estimation. This study presents a COSMIC-based measurement framework to measure the functional size of Google Analytics implementations, including two examples. Next, a set of 50 web analyti

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Fard, Mohammad Ansari, Sina Taamoli, and Shant Baghram. "Cosmological filaments in the light of excursion set of saddle points." Monthly Notices of the Royal Astronomical Society 489, no. 1 (2019): 900–909. http://dx.doi.org/10.1093/mnras/stz2210.

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ABSTRACT The universe in large scales is structured as a network known as cosmic web. Filaments are one of the structural components of this web, which can be introduced as a novel probe to study the formation and evolution of structures and as a probe to study the cosmological models and to address the missing baryon problem. The aim of this work is to introduce an analytical framework to study the statistics of filaments such as number density of them and also to obtain the length-mass relation. For this objective, we model filaments as collapsed objects which have an extension in one direct

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Koyamada, Koji, Yu Long, Takuma Kawamura, and Katsumi Konishi. "Data-driven derivation of partial differential equations using neural network model." International Journal of Modeling, Simulation, and Scientific Computing 12, no. 02 (2021): 2140001. http://dx.doi.org/10.1142/s1793962321400018.

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It has become critical to develop explanatory models using partial differential equations (PDEs) for big data from interesting scientific phenomena, e.g., fluids, atmosphere, and cosmic phenomena. Big data are often measured at discrete spatiotemporal points. In this paper, we assume a PDE and consider a set of the PDE solution data at multiple discrete points as pseudo-measurement data. In a data-driven PDE derivation, it is assumed that the PDE is a linear regression model comprising partial temporal and spatial differential terms, where the coefficients are estimated using regression analys

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Adnan, Muhammad, Muhammad Afzal, and Khadim Hussain Asif. "Ontology-Oriented Software Effort Estimation System for E-commerce Applications Based on Extreme Programming and Scrum Methodologies." Computer Journal 62, no. 11 (2019): 1605–24. http://dx.doi.org/10.1093/comjnl/bxy141.

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Abstract Presently, software industry is severely suffering from inaccurate effort estimation and inadequate unstructured or semi-structured project history management. In fact, both are difficult to accomplish and hence badly impact the software projects. We proposed improvements in the effort estimation and the project history management of e-commerce projects focusing on Extreme Programing (XP) and Scrum methodologies using ontology models in our software effort estimation system. Proposed system infers suitable estimate in the form of time, resources and lessons learnt as per the project l

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Solà Peracaula, Joan, Cristian Moreno-Pulido, and Alex González-Fuentes. "Running Vacuum and H4 Inflation." Universe 11, no. 4 (2025): 118. https://doi.org/10.3390/universe11040118.

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Recent studies of QFT in cosmological spacetime indicate that the speeding up of the present universe may not just be associated with a rigid cosmological term but with a running one that evolves with the expansion rate Λ=Λ(H). This running is inherited from the cosmic evolution of the vacuum energy density (VED), ρvac, which is sensitive to quantum effects in curved spacetime that ultimately trigger that running. The VED is a function of the Hubble rate and its time derivatives ρvac=ρvac(H,H˙,H¨,…). Two nearby points of cosmic evolution during the FLRW epoch are smoothly related as δρvac∼O(H2

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Arvizu, Abraham, Alejandro Aviles, Juan Carlos Hidalgo, et al. "Modeling the 3-point correlation function of projected scalar fields on the sphere." Journal of Cosmology and Astroparticle Physics 2024, no. 12 (2024): 049. https://doi.org/10.1088/1475-7516/2024/12/049.

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Abstract One of the main obstacles for the signal extraction of the three point correlation function using photometric surveys, such as the Rubin Observatory Legacy Survey of Space and Time (LSST), will be the prohibitive computation time required for dealing with a vast quantity of sources. Brute force algorithms, which naively scales as 𝒪(N 3) with the number of objects, can be further improved with tree methods but not enough to deal with large scale correlations of Rubin's data. However, a harmonic basis decomposition of these higher order statistics reduces the time dramatically, to scale

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Matalkah, Bassem, Nadeem El-Adaileh, and Moaath Khamaysa Hajaya. "A Hierarchical Software Quality Model for Estimating Function Point Analysis." WSEAS TRANSACTIONS ON INFORMATION SCIENCE AND APPLICATIONS 22 (January 27, 2025): 153–65. https://doi.org/10.37394/23209.2025.22.15.

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Research indicates that the method of scaling software according to the quantity of business functions an application needs to complete is called function point analysis (FPA). As a result, a model that guarantees the quality attributes of such systems is required. An information system's functional size can be determined using the Function Point Analysis (FPA) approach. While there are several quality methodologies now in use for estimating FPA in general, none of them are specifically focused on Hierarchical Task Analysis (HTA). This contribution includes a study of an analysis carried out o

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Hocke, Klemens, Huixin Liu, Nicholas Pedatella, and Guanyi Ma. "Global sounding of F region irregularities by COSMIC during a geomagnetic storm." Annales Geophysicae 37, no. 2 (2019): 235–42. http://dx.doi.org/10.5194/angeo-37-235-2019.

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Abstract. We analyse reprocessed electron density profiles and total electron content (TEC) profiles of the ionosphere in September 2008 (around solar minimum) and September 2013 (around solar maximum) obtained by the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC/FORMOSAT-3). The TEC profiles describe the total electron content along the ray path from the GPS satellite to the low Earth orbit as function of the tangent point of the ray. Some of the profiles in the magnetic polar regions show small-scale fluctuations on spatial scales <50 km. Possibly the tra

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Schrön, Martin, Markus Köhli, Lena Scheiffele, et al. "Improving calibration and validation of cosmic-ray neutron sensors in the light of spatial sensitivity." Hydrology and Earth System Sciences 21, no. 10 (2017): 5009–30. http://dx.doi.org/10.5194/hess-21-5009-2017.

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Abstract. In the last few years the method of cosmic-ray neutron sensing (CRNS) has gained popularity among hydrologists, physicists, and land-surface modelers. The sensor provides continuous soil moisture data, averaged over several hectares and tens of decimeters in depth. However, the signal still may contain unidentified features of hydrological processes, and many calibration datasets are often required in order to find reliable relations between neutron intensity and water dynamics. Recent insights into environmental neutrons accurately described the spatial sensitivity of the sensor and

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Kruuse, M., E. Tempel, R. Kipper, and R. S. Stoica. "Photometric redshift galaxies as tracers of the filamentary network." Astronomy & Astrophysics 625 (May 2019): A130. http://dx.doi.org/10.1051/0004-6361/201935096.

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Context. Galaxy filaments are the dominant feature in the overall structure of the cosmic web. The study of the filamentary web is an important aspect in understanding galaxy evolution and the evolution of matter in the Universe. A map of the filamentary structure is an adequate probe of the web. Aims. We propose that photometric redshift galaxies are significantly positively associated with the filamentary structure detected from the spatial distribution of spectroscopic redshift galaxies. The long-term aim is to use the photometric galaxies in addition to spectroscopic galaxies to create a m

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Barthelemy, Alexandre, Sandrine Codis, and Francis Bernardeau. "Probability distribution function of the aperture mass field with large deviation theory." Monthly Notices of the Royal Astronomical Society 503, no. 4 (2021): 5204–22. http://dx.doi.org/10.1093/mnras/stab818.

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ABSTRACT In the context of tomographic cosmic shear surveys, a theoretical model for the one-point statistics of the aperture mass (Map) is developed. This formalism is based on the application of the large deviation principle to the projected matter density field and more specifically to the angular aperture masses. The latter holds the advantage of being an observable that can be directly extracted from the observed shear field and to be, by construction, independent from the long wave modes. Furthermore, we show that, with the help of a nulling procedure based on the so-called BNT transform

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Herkert, Felix. "Der Kosmos als schweigender Prophet: Zu Plotin, Enn. II 9 [33],9,39–42." Elenchos 41, no. 2 (2020): 363–76. http://dx.doi.org/10.1515/elen-2020-0018.

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AbstractIn Ennead II 9,9,39–42 we find a singular passage in which Plotinus asserts that the cosmos ‘proclaims’ (προφητεύει) the divine order. It is the only passage in the Enneads where the verb προφητεύειν is used. In this paper the ‘prophetic function’ of the cosmos will be examined. It will be demonstrated how the mentioned passage – despite its unique character in the Enneads – points to the centre of Plotinus’ thought, namely his theory of the causality of intelligible beings. As a sensual product of transcendent causes, the cosmos ‘proclaims’ these causes. In consideration of other rele

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Tiwari, Rishi Kumar, Bhupendra Kumar Shukla, Değer Sofuoğlu, and Dilay Kösem. "A Transition Model in f(R,T) Theory via Observational Constraints." Symmetry 15, no. 4 (2023): 788. http://dx.doi.org/10.3390/sym15040788.

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A particular form of the time-dependent deceleration parameter is used to examine the accelerated expansion of the universe and the phase transition in this expansion in the context of f(R,T) gravity theory for the flat FRW model. The modified field equations are solved under the choice of f(R,T)=R+2f(T). The best fit values of the model parameters that would be consistent with the recent observational datasets that are estimated. For this estimation, 57 points from Cosmic Chronometers (CC) datasets and 1048 points from Pantheon supernovae datasets are used. Bayesian analysis and likelihood fu

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Izquierdo-Villalba, David, Silvia Bonoli, Massimo Dotti, Alberto Sesana, Yetli Rosas-Guevara, and Daniele Spinoso. "From galactic nuclei to the halo outskirts: tracing supermassive black holes across cosmic history and environments." Monthly Notices of the Royal Astronomical Society 495, no. 4 (2020): 4681–706. http://dx.doi.org/10.1093/mnras/staa1399.

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ABSTRACT We study the mass assembly and spin evolution of supermassive black holes (BHs) across cosmic time as well as the impact of gravitational recoil on the population of nuclear and wandering BHs (wBHs) by using the semi-analytical model L-Galaxies run on top of Millennium merger trees. We track spin changes that BHs experience during both coalescence events and gas accretion phases. For the latter, we assume that spin changes are coupled with the bulge assembly. This assumption leads to predictions for the median spin values of z = 0 BHs that depend on whether they are hosted by pseudo-b

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Gruber, Christiane. "The Tree as an 'Animal-esque Plant' ( Nabat Hayawani ): Arboreal Thoughtscapes in Islamic Lands." CrossCurrents 74, no. 3 (2024): 245–80. https://doi.org/10.1353/cro.2024.a954409.

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Abstract: Over the centuries, trees have held a prominent place in the greater Middle East, in both Muslim and non-Muslim spheres. Not only did they inspire the scriptural landscape of the Qur'an, whose cosmic trees stretch from hell to heaven, but they also provided an arboreal pivot for prophecy within Muhammad's sacred mosque complex located in the palm city of Medina. In Morocco, Iran, Turkey, and elsewhere, trees also have fulfilled manifold duties, both real and symbolic, for various Muslim and non-Muslim communities such as Sufis, the Amazigh (Berbers), Shi'is, and Yezidis. In these non

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Tutusaus, I., B. Lamine, and A. Blanchard. "Model-independent cosmic acceleration and redshift-dependent intrinsic luminosity in type-Ia supernovae." Astronomy & Astrophysics 625 (April 30, 2019): A15. http://dx.doi.org/10.1051/0004-6361/201833032.

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Context. The cosmological concordance model (ΛCDM) is the current standard model in cosmology thanks to its ability to reproduce the observations. The first observational evidence for this model appeared roughly 20 years ago from the type-Ia supernovae (SNIa) Hubble diagram from two different groups. However, there has been some debate in the literature concerning the statistical treatment of SNIa, and their stature as proof of cosmic acceleration. Aims. In this paper we relax the standard assumption that SNIa intrinsic luminosity is independent of redshift, and examine whether it may have an

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Boudaud, M., E. F. Bueno, S. Caroff, et al. "The pinching method for Galactic cosmic ray positrons: Implications in the light of precision measurements." Astronomy & Astrophysics 605 (September 2017): A17. http://dx.doi.org/10.1051/0004-6361/201630321.

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Context. Two years ago, the Ams-02 collaboration released the most precise measurement of the cosmic ray positron flux. In the conventional approach, in which positrons are considered as purely secondary particles, the theoretical predictions fall way below the data above 10 GeV. One suggested explanation for this anomaly is the annihilation of dark matter particles, the so-called weakly interactive massive particles (WIMPs), into standard model particles. Most analyses have focused on the high-energy part of the positron spectrum, where the anomaly lies, disregarding the complicated GeV low-e

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Debnath, Partha Sarathi. "Nonlinear viscous cosmological models in f(R,T) gravity." International Journal of Geometric Methods in Modern Physics 16, no. 06 (2019): 1950085. http://dx.doi.org/10.1142/s0219887819500853.

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This article presents nonlinear viscous cosmological model of the universe that arises in the modified gravity theory in which the Lagrangian of the gravitational action contains a general function [Formula: see text], where [Formula: see text] and [Formula: see text] denote the curvature scalar and the trace of the energy–momentum tensor, respectively, in the flat Friedmann-Robertson-Walker background metric with isotropic fluid. We obtain cosmological solutions in [Formula: see text] theory of gravity, specially for the choice [Formula: see text] with nonlinear viscosity described by nonline

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Cintas, Hugo, Frédéric Wrobel, Marine Ruffenach, et al. "RAMSEES: A Model of the Atmospheric Radiative Environment Based on Geant4 Simulation of Extensive Air Shower." Aerospace 10, no. 3 (2023): 295. http://dx.doi.org/10.3390/aerospace10030295.

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The device downscaling of electronic components has given rise to the need to consider specific failures in onboard airplane electronics. Single Event Effects (SEE) are a kind of failures that occur due to radiation in the atmosphere. For the purpose of ensuring onboard electronic reliability, there is a clear need for new tools to predict the SEE rate, at both avionic altitudes and at ground level. In this work, we develop a new tool: RAMSEES (Radiation Atmospheric Model for SEE Simulation), which simulates the atmospheric radiative environment induced by cosmic rays. This multiscale and mult

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Gallazzi, Anna R., A. Pasquali, S. Zibetti та F. La Barbera. "Galaxy evolution across environments as probed by the ages, stellar metallicities, and [α /Fe] of central and satellite galaxies". Monthly Notices of the Royal Astronomical Society 502, № 3 (2021): 4457–78. http://dx.doi.org/10.1093/mnras/stab265.

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ABSTRACT We explore how the star formation and metal enrichment histories of present-day galaxies have been affected by environment combining stellar population parameter estimates and group environment characterization for SDSS DR7. We compare stellar ages, stellar metallicities, and crucially, element abundance ratios $\rm [\alpha /Fe]$ of satellite and central galaxies, as a function of their stellar and host group halo mass, controlling for the current star formation rate and for the infall epoch. We confirm that below M* ∼ 1010.5 M⊙ satellites are older and slightly metal richer than equa

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HUANG, QING-GUO, and S. H. HENRY TYE. "THE COSMOLOGICAL CONSTANT PROBLEM AND INFLATION IN THE STRING LANDSCAPE." International Journal of Modern Physics A 24, no. 10 (2009): 1925–62. http://dx.doi.org/10.1142/s0217751x0904316x.

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An earlier paper points out that a quantum treatment of the string landscape is necessary. It suggests that the wave function of the universe is mobile in the landscape until the universe reaches a meta-stable site with its cosmological constant Λ0 smaller than the critical value Λc, where Λc is estimated to be exponentially small compared to the Planck scale. Since this site has an exponentially long lifetime, it may well be today's universe. We investigate specific scenarios based on this quantum diffusion property of the cosmic landscape and find a plausible scenario for the early universe.

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Pacini, Lorenzo, Oscar Adriani, Eugenio Berti, et al. "The Impact of Crystal Light Yield Non-Proportionality on a Typical Calorimetric Space Experiment: Beam Test Measurements and Monte Carlo Simulations." Instruments 6, no. 4 (2022): 53. http://dx.doi.org/10.3390/instruments6040053.

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Calorimetric space experiments were employed for the direct measurements of cosmic-ray spectra above the TeV region. According to several theoretical models and recent measurements, relevant features in both electron and nucleus fluxes are expected. Unfortunately, sizable disagreements among the current results of different space calorimeters exist. In order to improve the accuracy of future experiments, it is fundamental to understand the reasons of these discrepancies, especially since they are not compatible with the quoted experimental errors. A few articles of different collaborations sug

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Treumann, Rudolf A., and Wolfgang Baumjohann. "Causal kinetic equation of non-equilibrium plasmas." Annales Geophysicae 35, no. 3 (2017): 683–90. http://dx.doi.org/10.5194/angeo-35-683-2017.

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Abstract. Statistical plasma theory far from thermal equilibrium is subject to Liouville's equation, which is at the base of the BBGKY hierarchical approach to plasma kinetic theory, from which, in the absence of collisions, Vlasov's equation follows. It is also at the base of Klimontovich's approach which includes single-particle effects like spontaneous emission. All these theories have been applied to plasmas with admirable success even though they suffer from a fundamental omission in their use of the electrodynamic equations in the description of the highly dynamic interactions in many-pa

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Amante, Mario H., Juan Magaña, V. Motta, Miguel A. García-Aspeitia, and Tomás Verdugo. "Testing dark energy models with a new sample of strong-lensing systems." Monthly Notices of the Royal Astronomical Society 498, no. 4 (2020): 6013–33. http://dx.doi.org/10.1093/mnras/staa2760.

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ABSTRACT Inspired by a new compilation of strong-lensing systems, which consist of 204 points in the redshift range 0.0625 &lt; zl &lt; 0.958 for the lens and 0.196 &lt; zs &lt; 3.595 for the source, we constrain three models that generate a late cosmic acceleration: the ω-cold dark matter model, the Chevallier–Polarski–Linder, and the Jassal–Bagla–Padmanabhan parametrizations. Our compilation contains only those systems with early-type galaxies acting as lenses, with spectroscopically measured stellar velocity dispersions, estimated Einstein radius, and both the lens and sourc

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Martinelli, Matteo, and Isaac Tutusaus. "CMB Tensions with Low-Redshift H0 and S8 Measurements: Impact of a Redshift-Dependent Type-Ia Supernovae Intrinsic Luminosity." Symmetry 11, no. 8 (2019): 986. http://dx.doi.org/10.3390/sym11080986.

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With the recent increase in precision of our cosmological datasets, measurements of Λ CDM model parameter provided by high- and low-redshift observations started to be in tension, i.e., the obtained values of such parameters were shown to be significantly different in a statistical sense. In this work we tackle the tension on the value of the Hubble parameter, H 0 , and the weighted amplitude of matter fluctuations, S 8 , obtained from local or low-redshift measurements and from cosmic microwave background (CMB) observations. We combine the main approaches previously used in the literature by

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Amiranashvili, A. G. "Connection of Sum Light Aeroions Concentration with Natural Gamma Radiation and Air Temperature in Western Georgia." Radiobiology and Radiation Safety 1, no. 2 (2021): 37–42. https://doi.org/10.63465/rrs120213298.

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Results of investigation of connection of sum light aeroions concentration (N) with environmental gamma radiation (Γ) and air temperature (T) in western Georgia are presented.Simultaneous measurements of N, Γ and T were madeat 166 different points by using portable aeroions, gamma and temperature survey meters.The terrain height (H) varied from 6 to 1928 m above sea level.The statistical characteristics of the values ofN, Г and Thave been studied. In particular, the following results were obtained. Range of changes of investigation parameters is following: N – 450÷3100 sm-3, Γ - 40÷180 nSv/h,

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MAKAROVA, Lidiia, and Maxim TATARENKO. "COMPARATIVE ANALYSIS OF METHODS AND MODELS FOR ESTIMATING SIZE AND EFFORT IN DESIGNING MOBILE APPLICATIONS." Computer systems and information technologies, no. 3 (September 26, 2024): 26–33. http://dx.doi.org/10.31891/csit-2024-3-4.

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Mobile applications have long become an integral part of everyday life and have gained popularity among ordinary users, small companies, and large enterprises. However, this is a completely separate area of software. We can say that this is a whole separate ecosystem. Creating functional software for this ecosystem comes with new requirements, constraints, and characteristics that were not used in previous software metrics evaluation methods such as desktop programs or web applications. Mobile applications have new features, limitations and capabilities that are different from other software.

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Muehsam, David, Gaétan Chevalier, Tiffany Barsotti, and Blake T. Gurfein. "An Overview of Biofield Devices." Global Advances in Health and Medicine 4, no. 1_suppl (2015): gahmj.2015.022. http://dx.doi.org/10.7453/gahmj.2015.022.suppl.

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Advances in biophysics, biology, functional genomics, neuroscience, psychology, psychoneuroimmunology, and other fields suggest the existence of a subtle system of “biofield” interactions that organize biological processes from the subatomic, atomic, molecular, cellular, and organismic to the interpersonal and cosmic levels. Biofield interactions may bring about regulation of biochemical, cellular, and neurological processes through means related to electromagnetism, quantum fields, and perhaps other means of modulating biological activity and information flow. The biofield paradigm, in contra

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Lakshman, Arjun, Cai Chen, Kayla Parr, et al. "Spontaneous Remission of Secondary Acute Lymphoblastic Leukemia Associated with Lenalidomide Therapy for Multiple Myeloma." Blood 134, Supplement_1 (2019): 5200. http://dx.doi.org/10.1182/blood-2019-129257.

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Introduction: Multiple myeloma (MM) is an incurable malignancy of B-cell lineage. Introduction of immunomodulatory drugs such as lenalidomide has significantly improved overall survival of patients with MM. Lenalidomide maintenance is currently the standard of care for maintaining remission in MM. However, second primary malignancies are known to arise in patients on lenalidomide though their pathogenesis is not known. We report a patient who developed B-lymphoblastic leukemia (B-ALL) while on lenalidomide, which went into spontaneous remission after stopping lenalidomide. Whole exome sequenci

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Hong, Sungryong, Donghui Jeong, Ho Seong Hwang, et al. "Constraining cosmology with big data statistics of cosmological graphs." Monthly Notices of the Royal Astronomical Society 493, no. 4 (2020): 5972–86. http://dx.doi.org/10.1093/mnras/staa566.

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ABSTRACT By utilizing large-scale graph analytic tools implemented in the modern big data platform, apache spark, we investigate the topological structure of gravitational clustering in five different universes produced by cosmological N-body simulations with varying parameters: (1) a WMAP 5-yr compatible ΛCDM cosmology, (2) two different dark energy equation of state variants, and (3) two different cosmic matter density variants. For the big data calculations, we use a custom build of standalone Spark/Hadoop cluster at Korea Institute for Advanced Study and Dataproc Compute Engine in Google C

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Moon, Jeongin, Graziano Rossi, and Hogyun Yu. "Signature of Massive Neutrinos from the Clustering of Critical Points. I. Density-threshold-based Analysis in Configuration Space." Astrophysical Journal Supplement Series 264, no. 1 (2023): 26. http://dx.doi.org/10.3847/1538-4365/aca32a.

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Abstract Critical points represent a subset of special points tracing cosmological structures, carrying remarkable topological properties. They thus offer a richer high-level description of the multiscale cosmic web, being more robust to systematic effects. For the first time, we characterize here their clustering statistics in massive neutrino cosmologies, including cross-correlations, and quantify their simultaneous imprints on the corresponding web constituents—i.e., halos, filaments, walls, and voids—for a series of rarity levels. Our first analysis is centered on a density-threshold-based

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Xu, Chaopeng, Fan Mo, Xiao Wang, Xiaomeng Yang, Junfeng Xie, and Zhen Wen. "Fine Calibration Method for Laser Altimeter Pointing and Ranging Based on Dense Control Points." Remote Sensing 16, no. 4 (2024): 611. http://dx.doi.org/10.3390/rs16040611.

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Satellite laser altimetry technology, a novel space remote sensing technique, actively acquires high-precision elevation information about the Earth’s surface. However, the accuracy of laser altimetry can be compromised by alterations in the satellite-ground environment, thermal dynamics, and cosmic radiation. These factors may induce subtle variations in the installation and internal structure of the spaceborne laser altimeter on the satellite platform, diminishing measurement precision. In-orbit calibration is thus essential to enhancing the precision of laser altimetry. Through collaborativ

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Lizancos, Antón Baleato, and Martin White. "Harmonic analysis of discrete tracers of large-scale structure." Journal of Cosmology and Astroparticle Physics 2024, no. 05 (2024): 010. http://dx.doi.org/10.1088/1475-7516/2024/05/010.

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Abstract It is commonplace in cosmology to analyze fields projected onto the celestial sphere, and in particular density fields that are defined by a set of points e.g. galaxies. When performing an harmonic-space analysis of such data (e.g. an angular power spectrum) using a pixelized map one has to deal with aliasing of small-scale power and pixel window functions. We compare and contrast the approaches to this problem taken in the cosmic microwave background and large-scale structure communities, and advocate for a direct approach that avoids pixelization. We describe a method for performing

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Cioruța, Bogdan-Vasile, and Mirela Coman. "Definition, Role, and Functions of Soil Related to the Knowledge Society and the Someș-Tisa Hydrographic Area (Romania)." Sustainability 14, no. 14 (2022): 8688. http://dx.doi.org/10.3390/su14148688.

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In Romania, under the aegis of the knowledge society, we naturally wondered if the soil still had a role, through the functions it fulfills, at the level of local communities. In this context, we set out, starting from the definition of soil as a cosmic–telluric–biotic product with notable valences in the transition of communities from hunting to knowledge-based societies, to make some scientific observations on the importance of soil resources. The research methodology was outlined around the importance and functions of soil in society by presenting the current state of land use in the Someș-

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Tol, Anthony. "Time and Change in Vollenhoven." Philosophia Reformata 60, no. 2 (1995): 99–120. http://dx.doi.org/10.1163/22116117-90000094.

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Within the movement of reformational philosophy much attention has been given to the topic of time. Dooyeweerd initiated the discussion in the mid-30’s with his first publications on this topic. What turned out to be most challenging was not so much his treatment of time as such—e.g. his distinction between “cosmic time” and “modal time”—but the anthropological implication of the supra-temporality of the heart that transcends the temporal human functions of body and mind. Vollenhoven long remained in the background of this debate, at least in its printed form, though it is common knowledge t

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