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Articles de revues sur le sujet « Transition levels »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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1

palevskaya, Svetlana, and Altynaykassymzhanova. "Are Obesity Levels Increasing in the “Transition Countries?”." International Journal of Psychosocial Rehabilitation 24, no. 04 (2020): 2574–88. http://dx.doi.org/10.37200/ijpr/v24i4/pr201364.

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Aggarwal, Sunny, Nupur Verma, A. K. Singh, Narendra Singh, Rinku Sharma, and Man Mohan. "Multiconfigurational Dirac–Fock energy levels and radiative rates for Ni XXI." Canadian Journal of Physics 92, no. 11 (2014): 1285–96. http://dx.doi.org/10.1139/cjp-2013-0454.

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We present accurate atomic structure calculations for the lowest 200 fine structural energy levels for oxygen-like nickel, which may be a useful ion for both astrophysical and fusion plasmas. For the calculations of energy levels and radiative rates, we have used the multiconfigurational Dirac–Fock method. Our results are compared with those obtained using other numerical methods and experiments so that their accuracy can be assessed. The transition wavelengths, oscillator strengths, and radiative rates are reported for electric dipole (E1) transitions from the ground state. We have also prese

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El-Sayed, Fatma. "Energy levels and transition probabilities for transitions in Zr XXXV." Journal of Quantitative Spectroscopy and Radiative Transfer 255 (November 2020): 107237. http://dx.doi.org/10.1016/j.jqsrt.2020.107237.

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Rynkun, P., S. Banerjee, G. Gaigalas, M. Tanaka, L. Radžiūtė, and D. Kato. "Theoretical investigation of energy levels and transition for Ce IV." Astronomy & Astrophysics 658 (February 2022): A82. http://dx.doi.org/10.1051/0004-6361/202141513.

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Aims. We present extensive energy level and transition data for the Ce IV spectrum. By providing accurate atomic data, we evaluate the impact of atomic data on the opacity in the neutron star merger ejecta. Methods. We performed energy spectra and transition data calculations using the GRASP2018 package, which is based on the multiconfiguration Dirac–Hartree–Fock and relativistic configuration interaction methods, and the HULLAC code, which is based on a parametric potential method. Results. We present energy spectra calculated for the 225 levels for the Ce3+ ion. Energy levels are compared wi

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Třísková, L., V. Truhlík, J. Šmilauer, and Yu A. Shultchishin. "Comparison of and transition levels." Advances in Space Research 22, no. 6 (1998): 895–98. http://dx.doi.org/10.1016/s0273-1177(98)00119-7.

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WERNER, GERHARD. "ON CRITICAL STATE TRANSITIONS BETWEEN DIFFERENT LEVELS IN NEURAL SYSTEMS." New Mathematics and Natural Computation 05, no. 01 (2009): 185–96. http://dx.doi.org/10.1142/s1793005709001222.

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The framework of "Modern Theory of Critical State Transitions"1,2 considers the relation between different levels of organization in complex systems in terms of critical state transitions. A state transition between levels entails changes of scale of observables and, concurrently, new formats of description at reduced dimensionality. It is suggested that this principle can be applied to the hierarchic structure of the nervous system, whereby the relations between different levels of its functional organization can be viewed as successions of state transitions: upon state transition, the 'lower

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Demirci Yıldırım, Tuba, Rana İşgüder, Ezgi Karaçura, et al. "Pediatric to adult rheumatology transition: Success rates, influencing factors, and evolving diagnoses and treatments." Archives of Rheumatology 39, no. 4 (2024): 662–69. https://doi.org/10.46497/archrheumatol.2024.10749.

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Objectives: This study aimed to evaluate the rate of successful transitions, identify factors associated with early versus late transitions, and diagnosis and treatment changes after transition into adult rheumatology. Patients and methods: In this retrospective study, patients with childhood-onset rheumatic diseases who transitioned from pediatric to adult rheumatology care between January 2013 and January 2023 were screened for a successful transition. Successful transitions were defined as maintaining annual visits to the adult rheumatology clinic after transition. Early transition was defi

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El-Sayed, Fatma. "Energy levels, wavelengths, and transition probabilities for transitions in Pd XLII." Journal of Quantitative Spectroscopy and Radiative Transfer 254 (October 2020): 107204. http://dx.doi.org/10.1016/j.jqsrt.2020.107204.

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Dzierżęga, Krzysztof, Ulf Griesmann, Gillian Nave, and Łukasz Bratasz. "Absolute Transition Rates for Transitions from 5p Levels in Kr II." Physica Scripta 63, no. 3 (2001): 209–18. http://dx.doi.org/10.1238/physica.regular.063a00209.

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Kochan, Andrzej, Emilia Koper, Przemysław Ilczuk, and Łukasz Gruba. "Transitions in ERTMS/ETCS system." WUT Journal of Transportation Engineering 121 (June 1, 2018): 147–59. http://dx.doi.org/10.5604/01.3001.0014.4575.

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The article concerns the issue of transition in ERTMS/ETCS system. The document discusses the selection and distribution of balises relevant for transition. The possibilities and limitations resulting from the selected configuration of the system in the scope of balises are presented. General principles of transition execution were also presented and a unified description of transitions between ERTMS/ETCS levels was proposed. The article describes balis groups important from the point of view of transition and telegrams exchanged in the process of transition. The selected example shows a descr

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Froese Fischer, Charlotte, and James Babb. "Transition Rates for 3s3p2 4P–3s3p4s 4Po Transitions in Al i." Atoms 7, no. 2 (2019): 54. http://dx.doi.org/10.3390/atoms7020054.

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Fully relativistic calculations have been performed for two multiplets, 3 s 3 p 2 4 P and 3 s 3 p 4 s 4 P o , in Al i. Wave functions were obtained for all levels of these multiplets using the grasp programs. Reported are the E1 transitions rates for all transitions between levels of these multiplets. Transition energies and transition rates are compared with observed values and other theory. Our calculated transition rates are smaller by about 10% than observed rates, reducing a large discrepancy between earlier calculations and experiments.

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Rynkun, P., G. Gaigalas, and P. Jönsson. "Theoretical studies of energy levels and transition data for Zr III." Astronomy & Astrophysics 637 (May 2020): A10. http://dx.doi.org/10.1051/0004-6361/201937243.

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Aims. We seek to present accurate and extensive transition data for the Zr III ion. These data are useful in many astrophysical applications. Methods. We used the multiconfiguration Dirac-Hartree-Fock and relativistic configuration interaction (RCI) methods, which are implemented in the general-purpose relativistic atomic structure package GRASP2018. The transverse-photon (Breit) interaction, vacuum polarization, and self-energy corrections are included in the RCI computations. Results. Energy spectra were calculated for the 88 lowest states in the Zr III ion. The root-mean-square deviation ob

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Li, M. C., W. Li, P. Jönsson, A. M. Amarsi, and J. Grumer. "Extended MCDHF Calculations of Energy Levels and Transition Data for N i." Astrophysical Journal Supplement Series 265, no. 1 (2023): 26. http://dx.doi.org/10.3847/1538-4365/acb705.

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Abstract Accurate and extensive atomic data are essential for spectroscopic analyses of stellar atmospheres and other astronomical objects. We present energy levels, lifetimes, and transition probabilities for neutral nitrogen, the sixth most abundant element in the cosmos. The calculations employ the fully relativistic multiconfiguration Dirac–Hartree–Fock and relativistic configuration interaction methods, and span the 103 lowest states up to and including 2s22p25s. Our theoretical energies are in excellent agreement with the experimental data, with an average relative difference of 0.07%. I

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Granone, Luis I., Konstantin Nikitin, Alexei Emeline, Ralf Dillert, and Detlef W. Bahnemann. "Effect of the Degree of Inversion on the Photoelectrochemical Activity of Spinel ZnFe2O4." Catalysts 9, no. 5 (2019): 434. http://dx.doi.org/10.3390/catal9050434.

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Physicochemical properties of spinel ZnFe2O4 (ZFO) are known to be strongly affected by the distribution of the cations within the oxygen lattice. In this work, the correlation between the degree of inversion, the electronic transitions, the work function, and the photoelectrochemical activity of ZFO was investigated. By room-temperature photoluminescence measurements, three electronic transitions at approximately 625, 547, and 464 nm (1.98, 2.27, and 2.67 eV, respectively) were observed for the samples with different cation distributions. The transitions at 625 and 547 nm were assigned to nea

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Yupapin, Preecha. "Contemplation and perception energy transition states." International Journal of Scientific World 3, no. 2 (2015): 223. http://dx.doi.org/10.14419/ijsw.v3i2.4861.

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<p>In this paper, the concept of meditation and perception energy transition states is configured described by the spirit energy transitions. Being life has been jeopardized situation due to the chaotic society. The technique that can be used to release and recover such problems is the challenge and being proposed. There are two techniques that can lead to obtain the mind concentration, where they are meditation ad mind-body considerations that have been successfully used for years. The descriptions of meditation and perception are performed by the spirit energy transitions of eight and

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Ibragimov, Guseyn B., and Raida Z. Ibayeva. "Intraband Absorption of Electromagnetic Radiation by Electrons with Optical Phonon Participation in Quantum Dot Superlattices." Radioelectronics. Nanosystems. Information Technologies. 16, no. 2 (2024): 249–54. http://dx.doi.org/10.17725/j.rensit.2024.16.249.

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Physics Institute of Azerbaijan National Academy of Sciences In this paper, we investigate the absorption of electromagnetic radiation by a free electron gas interacting with lattice vibrations in a quantum dot superlattice. It is assumed that the electron gas in the quantum dot superlattice is limited by the anisotropic parabolic potential. The absorption of light by free carriers with the participation of phonons is calculated in the second order of the perturbation theory. When calculating the absorption coefficient, the matrix elements of the electron-photon and electron-phonon interaction

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Eser, Selda, and Leyla Özdemir. "Electric dipole transitions between low-lying levels in doubly ionized krypton, xenon, and radon." Canadian Journal of Physics 96, no. 6 (2018): 664–71. http://dx.doi.org/10.1139/cjp-2017-0238.

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Using the general-purpose relativistic atomic structure package (GRASP) based on a fully relativistic multiconfiguration Dirac–Fock (MCDF) method, the transition parameters, such as transition rates (probabilities), oscillator strengths, and line strengths for the electric dipole transitions between low-lying levels are evaluated for doubly ionized krypton, xenon, and radon. Breit interactions for relativistic effects and quantum electrodynamical (QED) contributions besides valence and valence–core correlation effects are taken into account in calculations. We compare the results obtained with

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Xu, Xunwei, Yanjun Zhao, Hui Wang, Aixi Chen, and Yu-Xi Liu. "Nonreciprocal transition between two nondegenerate energy levels." Photonics Research 9, no. 5 (2021): 879. http://dx.doi.org/10.1364/prj.412904.

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Barylska, Kamila, and Edward Ochma´nski. "Levels of Persistency in Place/Transition Nets." Fundamenta Informaticae 93, no. 1-3 (2009): 33–43. http://dx.doi.org/10.3233/fi-2009-0086.

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Norrington, P. H., A. E. Kingston, and A. W. Boone. "Energy levels and transition probabilities for FeXXVions." Journal of Physics B: Atomic, Molecular and Optical Physics 33, no. 9 (2000): 1767–88. http://dx.doi.org/10.1088/0953-4075/33/9/308.

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Gostelow, J. P., and G. J. Walker. "Similarity Behavior in Transitional Boundary Layers Over a Range of Adverse Pressure Gradients and Turbulence Levels." Journal of Turbomachinery 113, no. 4 (1991): 617–24. http://dx.doi.org/10.1115/1.2929125.

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Boundary layer transition has been investigated experimentally under low, moderate, and high free-stream turbulence levels and varying adverse pressure gradients. Under high turbulence levels and adverse pressure gradients a pronounced subtransition was present. A strong degree of similarity in intermittency distributions was observed, for all conditions, when the Narasimha procedure for determination of transition inception was used. Effects of free-stream turbulence on the velocity profile are particularly strong for the laminar boundary layer upstream of the transition region. This could re

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Scott, Adam D., Dawn M. King, Stephen W. Ordway, and Sonya Bahar. "Phase transitions in evolutionary dynamics." Chaos: An Interdisciplinary Journal of Nonlinear Science 32, no. 12 (2022): 122101. http://dx.doi.org/10.1063/5.0124274.

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Sharp changes in state, such as transitions from survival to extinction, are hallmarks of evolutionary dynamics in biological systems. These transitions can be explored using the techniques of statistical physics and the physics of nonlinear and complex systems. For example, a survival-to-extinction transition can be characterized as a non-equilibrium phase transition to an absorbing state. Here, we review the literature on phase transitions in evolutionary dynamics. We discuss directed percolation transitions in cellular automata and evolutionary models, and models that diverge from the direc

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Arutyunyan, Rafael V., Alexander D. Vasiliev, Yuri N. Obukhov, and Alexander V. Osadchy. "Metastable One-Electron Excited States of Charged Fullerenes." Journal of Nanomaterials 2019 (December 31, 2019): 1–4. http://dx.doi.org/10.1155/2019/5864604.

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We study the spontaneous emission processes for the quantum transitions between electron states of a charged C60 fullerene. Lifetimes for the transitions between the volume-localized electron levels and the surface-localized electron levels are evaluated and compared with the transitions between two surface-localized electron levels. We find the lifetimes by computing the transition dipole moments on the basis of the numeric calculations of the three-dimensional electron wave functions of a charged fullerene by making use of the density functional theory method implemented in the QuantumEspres

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Karaçoban Usta, Betül, and Büşra Alparslan. "Lifetimes, oscillator strengths, and transition probabilities for Ce IV." Canadian Journal of Physics 95, no. 11 (2017): 1103–14. http://dx.doi.org/10.1139/cjp-2017-0161.

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The lifetimes for the levels of 5p6nf (n = 5–30), 5p6np (n = 6–30), 5p6nd (n = 5–30), 5p6ng (n = 5–30), and 5p6ns (n = 7–30) configurations and the transition parameters for the electric dipole transitions between these levels have been calculated using the relativistic Hartree–Fock (HFR) method for triply ionized cerium (Ce IV, Z = 58). We have compared the results with the previously reported available calculations and experiments in the literature. Moreover, some new transition probabilities, oscillator strengths, and lifetime values for highly excited levels in Ce IV, not appearing in data

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Alaydin, Behçet Özgür. "Effect of Quantum Barrier Thickness on the Optical Properties of Triple Triangular GaAs/AlGaAs Quantum Wells." Cumhuriyet Science Journal 46, no. 1 (2025): 115–24. https://doi.org/10.17776/csj.1554451.

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This study investigates the electronic and optical properties of a GaAs/AlxGa1-xAs triple triangular quantum well (QW) structure, focusing on the 2-4 and 3-4 intersubband transitions. By varying the right barrier (RB) thickness from 0 to 6 nm, the impact on wave function localization, energy levels, dipole moment matrix elements, absorption coefficients, and refractive index changes was analyzed using a finite element-based Schrödinger solver. Quantitative results indicate that increasing the RB breaks the symmetry of the potential, enabling the 2-4 transition and causing variations in absorpt

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Fischer, C. Froese, and Xinghong He. "Transition energies and transition rates for the 2p4(3P)3p - 2p4(3P)3d transitions in Ne II." Canadian Journal of Physics 77, no. 3 (1999): 177–95. http://dx.doi.org/10.1139/p99-013.

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Theoretical transition rates for 2p4(3P)3p - 2p4(3P)3d transitions in Ne II are reported from multiconfiguration Hartree-Fock calculations with Breit-Pauli corrections and multiconfiguration Dirac-Fock calculations with Breit corrections. Because the even parity states have many close-lying energy levels, interaction between terms is strong in some cases. An analysis of the data is presented.PACS Nos.: 31.25Jf, 32.30Jc, 32.70Cs

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Singh, Jagjit, Sunny Aggarwal, A. K. Singh, and Man Mohan. "Breit–Pauli atomic structure calculations for sulphur-like titanium." Canadian Journal of Physics 90, no. 9 (2012): 833–47. http://dx.doi.org/10.1139/p2012-074.

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Configuration interaction calculation has been performed for excitation energies, oscillator strengths, and transition probabilities of 114 fine-structure levels of sulphur-like titanium. The relativistic effects are included in Breit–Pauli approximation by adding mass-correction, Darwin, and spin–orbit interaction terms to the nonrelativistic Hamiltonian. We have adjusted the diagonal elements of Hamiltonian matrices (fine-tuning) before the calculation of oscillator strength and transition probabilities for the electric dipole allowed transitions. Our calculated data are in close agreement w

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Melnikov, Sergei P., and Anatolii A. Sinyanskii. "Ultimate efficiency of nuclear-pumped gas lasers." Laser and Particle Beams 11, no. 4 (1993): 645–54. http://dx.doi.org/10.1017/s026303460000639x.

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We suggest several cascade lasing schemes: (1) cascade of laser transitions between atom (ion) excited levels when the lower laser level of one laser transition is simultaneously the upper laser level of another transition located below; (2) successive lasing, first, on ion transitions, then after ion recombination on atom transitions; (3) while using multicomponent mixtures, successive lasing on atoms (ions) of separate components. These possibilities are discussed in terms of specific lasers, some of which have been studied experimentally.

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Akasofu, Syun-Ichi. "Paradigms and Four Levels of Scientific Controversies." Journal of Research in Philosophy and History 4, no. 2 (2021): p21. http://dx.doi.org/10.22158/jrph.v4n2p21.

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A paradigm transition or change is essential in the development of science. During the transition, there are intense debates and controversies among scientists. In this paper, we attempt to analyze controversies in four levels and also three types of researchers.

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Li, Jiajia, Heming Pei, Ning Kang, Gong Chen, and Lijun Pei. "ADVERSE CHILDHOOD EXPERIENCES AND SOCIAL PARTICIPATION ON FRAILTY STATE TRANSITIONS: A 10-YEAR PROSPECTIVE COHORT." Innovation in Aging 8, Supplement_1 (2024): 1354. https://doi.org/10.1093/geroni/igae098.4320.

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Abstract Background Adverse childhood experiences (ACEs) is associated with frailty, while the association with frailty state transitions and the role of social participation remain unclear. This study aimed to investigate the association between ACEs and frailty state transition, alongside the moderation effect of social participation methods Data from 9,621 adults aged 45+ from the CHARLS (2011-2020) were analyzed. Frailty was measured with the frailty index, while ACEs and social participation were measured with a validated questionnaire. The association between ACEs and frailty state trans

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Nikitin, Jana, and Alexandra M. Freund. "Social Motives Predict Loneliness During a Developmental Transition." Swiss Journal of Psychology 76, no. 4 (2017): 145–53. http://dx.doi.org/10.1024/1421-0185/a000201.

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Abstract. Establishing new social relationships is important for mastering developmental transitions in young adulthood. In a 2-year longitudinal study with four measurement occasions (T1: n = 245, T2: n = 96, T3: n = 103, T4: n = 85), we investigated the role of social motives in college students’ mastery of the transition of moving out of the parental home, using loneliness as an indicator of poor adjustment to the transition. Students with strong social approach motivation reported stable and low levels of loneliness. In contrast, students with strong social avoidance motivation reported hi

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Raineri, M., M. Gallardo, J. Reyna Almandos, A. G. Trigueiros, and C. J. B. Pagan. "New Transition and Energy Levels of Three-Times Ionized Krypton (Kr IV)." Atoms 9, no. 3 (2021): 48. http://dx.doi.org/10.3390/atoms9030048.

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A capillary pulsed-discharge and a theta-pinch were used to record Kr spectra in the region of 330–4800 Å. A set of 168 transitions of these spectra were classified for the first time. We extended the analysis to twenty-five new energy levels belonging to 3s23p24d, 3s23p25d even configurations. We calculated weighted transition probabilities (gA) for all of the experimentally observed lines and lifetimes for new energy levels using a relativistic Hartree–Fock method, including core-polarization effects.

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Doherty, J., C. Hurley, P. Girod, et al. "P0582 Do we need a Structured Transition Programme for patients with IBD? The Irish Experience." Journal of Crohn's and Colitis 19, Supplement_1 (2025): i1162—i1163. https://doi.org/10.1093/ecco-jcc/jjae190.0756.

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Abstract Background The British Society of Gastroenterology recommend the use of structured transition programmes to improve control of chronic GI disease in adolescents. Although research is limited structured transition programmes have been shown to improve disease outcomes in IBD {1}. Methods We performed a retrospective multicentre study In collaboration with our National Children’s Hospital. Data was collected on patients prior to transition to adult services and after they transitioned to five adult hospitals across Ireland. Our aim was to look at the impact of attending a structured tra

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Husain, Abid, Haris Kunari, and Tauheed Ahmad. "Energy Levels and Transition Data of Cs VI." Atoms 12, no. 3 (2024): 13. http://dx.doi.org/10.3390/atoms12030013.

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Previously reported atomic data (spectral lines, wavelengths, energy levels, and transition probabilities) were collected and systematically analyzed for Cs VI. The present theoretical analysis was supported by extensive calculations made for Cs VI with a pseudo-relativistic Hartree–Fock (HFR) method together with the superposition of configuration interactions implemented in Cowan’s codes. In this work, all previously reported energy levels and their (allowed) transition assignments were confirmed. A critically evaluated set of optimized energy levels with their uncertainties, observed and Ri

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De Miranda-Ribeiro, Adriana, and Ricardo Alexandrino Garcia. "Transition or transitions? Analyzing the fertility decline in Brazil in the light of educational levels." Revista Latinoamericana de Población 7, no. 13 (2013): 91–106. http://dx.doi.org/10.31406/relap2013.v7.i2.n13.4.

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In Brazil, the reproductive behavior is differentiated according to educational level. The main objective of this article is to analyze fertility differentials by educational level in order to seek characteristics that determine the particular stage of the demographic transition of each educational group. The study will focus on the analysis of fertility level (tfr), parity composition, mean age of childbearing and tempo effect (bf Model). Data come from the Brazilian Demographic Censuses (1980 to 2010). Brazil seems to be completing the (first) demographic transition: fertility is below the r

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Li, W., A. M. Amarsi, A. Papoulia, J. Ekman, and P. Jönsson. "Extended theoretical transition data in C i–iv." Monthly Notices of the Royal Astronomical Society 502, no. 3 (2021): 3780–99. http://dx.doi.org/10.1093/mnras/stab214.

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ABSTRACT Accurate atomic data are essential for opacity calculations and for abundance analyses of the Sun and other stars. The aim of this work is to provide accurate and extensive results of energy levels and transition data for C i–iv. The Multiconfiguration Dirac–Hartree–Fock and relativistic configuration interaction methods were used in this work. To improve the quality of the wavefunctions and reduce the relative differences between length and velocity forms for transition data involving high Rydberg states, alternative computational strategies were employed by imposing restrictions on

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Shenk, Mary K., Ryan O. Begley, David A. Nolin, and Andrew Swiatek. "When does matriliny fail? The frequencies and causes of transitions to and from matriliny estimated from a de novo coding of a cross-cultural sample." Philosophical Transactions of the Royal Society B: Biological Sciences 374, no. 1780 (2019): 20190006. http://dx.doi.org/10.1098/rstb.2019.0006.

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The question of when and why societies have transitioned away from matriliny to other types of kinship systems—and when and why they transition towards matriliny—has a long history in anthropology, one that is heavily engaged with both evolutionary theory and cross-cultural research methods. This article presents tabulations from a new coding of ethnographic documents from the Standard Cross-Cultural Sample (SCCS), tallying claims of transitions in kinship systems both away from and to matriliny using various levels of stringency. We then use our counts as the outcome variables in a set of Bay

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Karaçoban Usta, Betül, and Sevda Doğan. "Energies, Landé g-factors, oscillator strengths, and transition probabilities in Cs-like Pr V." Canadian Journal of Physics 93, no. 12 (2015): 1439–45. http://dx.doi.org/10.1139/cjp-2015-0308.

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We have calculated relativistic energies and Landé g-factors for the levels of 5p6nf (n = 4–30), 5p6np (n = 6–30), 5p6nd (n = 5–30), 5p6ng (n = 5–30) and 5p6ns (n = 6–30) configurations and the transition parameters, such as wavelengths, oscillator strengths, and transition probabilities (or rates), for the electric dipole (E1) transitions between these levels in quadruply ionized praseodymium (Pr V, Z = 59) by using the relativistic Hartree–Fock method. We have compared the results with available calculations and experiments in the literature.

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Ward, Jacob W., Jacqueline J. Li, Jared Schwartz, Gillian Nave, Ton A. J. J. Raassen, and Peter H. M. Uylings. "Branching Fractions and Transition Probabilities for UV Transitions in the Spectrum of Cr ii." Astrophysical Journal 959, no. 1 (2023): 8. http://dx.doi.org/10.3847/1538-4357/acfafe.

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Abstract We present transition probabilities for 268 spectral lines of singly ionized chromium (Cr ii) in the wavelength region 208–414 nm. Branching fractions were measured in archival Fourier transform spectra of chromium-argon and chromium-neon hollow cathode lamps and a Penning discharge source. The branching fractions were combined with previously published experimental lifetimes of 14 levels, and with lifetimes from semiempirical calculations for 14 levels to give transition probabilities. The estimated uncertainties of the transition probabilities range from 10% to 26%. A comparison wit

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Moilanen, Kristin L., Daniel S. Shaw, and Kari L. Maxwell. "Developmental cascades: Externalizing, internalizing, and academic competence from middle childhood to early adolescence." Development and Psychopathology 22, no. 3 (2010): 635–53. http://dx.doi.org/10.1017/s0954579410000337.

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AbstractThe current study was initiated to increase understanding of developmental cascades in childhood in a sample of at-risk boys (N= 291; 52% White). Mothers, teachers, and boys reported on boys' externalizing problems, internalizing difficulties, and academic competence. Consistent with hypotheses regarding school-related transitions, high levels of externalizing problems were associated with both low levels of academic competence and high levels of internalizing problems during the early school-age period, and with elevations in internalizing problems during the transition to adolescence

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Latouche, Guy, and P. G. Taylor. "Level phase independence for GI/M/1-type Markov chains." Journal of Applied Probability 37, no. 4 (2000): 984–98. http://dx.doi.org/10.1239/jap/1014843078.

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GI/M/1-type Markov chains make up a class of two-dimensional Markov chains. One dimension is usually called the level, and the other is often called the phase. Transitions from states in level k are restricted to states in levels less than or equal to k+1. For given transition probabilities in the interior of the state space, we show that it is always possible to define the boundary transition probabilities in such a way that the level and phase are independent under the stationary distribution. We motivate our analysis by first considering the quasi-birth-and-death process special case in whi

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Latouche, Guy, and P. G. Taylor. "Level phase independence for GI/M/1-type Markov chains." Journal of Applied Probability 37, no. 04 (2000): 984–98. http://dx.doi.org/10.1017/s0021900200018179.

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GI/M/1-type Markov chains make up a class of two-dimensional Markov chains. One dimension is usually called the level, and the other is often called the phase. Transitions from states in level k are restricted to states in levels less than or equal to k+1. For given transition probabilities in the interior of the state space, we show that it is always possible to define the boundary transition probabilities in such a way that the level and phase are independent under the stationary distribution. We motivate our analysis by first considering the quasi-birth-and-death process special case in whi

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Çelik, G., Ş. Ateş, and G. Tekeli. "Electric dipole transition probabilities, oscillator strengths, and lifetimes for Co16+." Canadian Journal of Physics 94, no. 1 (2016): 23–25. http://dx.doi.org/10.1139/cjp-2015-0414.

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The electric dipole transition probabilities, oscillator strengths, and lifetimes for Co16+ have been calculated within the weakest bound electron potential model (WBEPM) theory using experimental energy levels and theoretical expectation values of orbital radii corresponding to those energy levels under the assumption of the LS coupling scheme. In the calculations both multiplet and fine structure transitions are studied. The present results are consistent with earlier results given in the literature. Moreover, some transition probability and oscillator strength values not existing in the lit

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Öztürk, İ. K., G. Çelik, Y. Gökçe, et al. "Transition probabilities of neutral scandium." Canadian Journal of Physics 92, no. 11 (2014): 1425–29. http://dx.doi.org/10.1139/cjp-2014-0048.

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The electric dipole transition probabilities and the oscillator strengths of neutral scandium have been calculated using the quantum defect orbital theory and the Cowan code for the 3d4s2–3d4s4p, 3d24s–3d24p, and 3d4s2–4s24p transitions. In addition, a parametric analysis of the fine structure for the 3d4s2configuration of even parity is performed using Cowan code. The transition probabilities and the oscillator strengths obtained in this work are mostly in agreement with the data obtained from different theoretical works given in the literature. Moreover, transition probabilities for 24 level

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Den Hartog, E. A., G. T. Voith, and I. U. Roederer. "Atomic Transition Probabilities for Ultraviolet and Optical Lines of Tm ii *." Astrophysical Journal Supplement Series 274, no. 1 (2024): 9. http://dx.doi.org/10.3847/1538-4365/ad614f.

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Abstract We report new branching fraction measurements for 224 ultraviolet and optical transitions of Tm ii. These transitions range in wavelength (wavenumber) from 2350 to 6417 Å (42,532–15,579 cm−1) and originate in 13 odd-parity and 24 even-parity upper levels. Thirty-five of the 37 levels, accounting for 213 of the 224 transitions, are studied for the first time. Branching fractions are determined for two levels studied previously for comparison to earlier results. The levels studied for the first time are high lying, ranging in energy from 35,753 to 54,989 cm−1. The branching fractions ar

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Voith, G. T., E. A. Den Hartog, and I. U. Roederer. "Atomic Transition Probabilities for UV and Optical Lines of Gd ii*." Astrophysical Journal Supplement Series 278, no. 1 (2025): 7. https://doi.org/10.3847/1538-4365/adbf1e.

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Abstract We report new branching fraction (BF) measurements for 156 ultraviolet and optical transitions of Gd ii. These transitions range in wavelength (wavenumber) from 2574 to 6766 Å (38,838–14,777 cm−1) and originate in one odd-parity and 11 even-parity upper levels. Nine of the 12 levels, accounting for 126 of the 156 transitions, are studied for the first time. BFs are determined for three levels studied previously for the purpose of comparison. The levels studied for the first time are high lying, ranging in energy from 36,845 to 40,774 cm−1. The BFs are determined from emission spectra

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Tersoff, J. "‘‘Pinning’’ of energy levels of transition-metal impurities." Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures 5, no. 4 (1987): 1221. http://dx.doi.org/10.1116/1.583715.

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Lee, Taedong, and Stephen Morgan. "Just Energy Transition: Concept, Components, Levels, and Actors." Journal of International Politics 29, no. 2 (2024): 117–67. https://doi.org/10.18031/jip.2024.12.29.2.117.

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Fatma El-Sayed and Z. S. Matar. "Energy Levels and Transition Rates for Ti XIV." Physics of Particles and Nuclei Letters 16, no. 6 (2019): 713–28. http://dx.doi.org/10.1134/s1547477119060451.

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Biémont, E., and J. E. Hansen. "Energy levels and transition probabilities in 3dand 3d9configurations." Physica Scripta 39, no. 3 (1989): 308–13. http://dx.doi.org/10.1088/0031-8949/39/3/005.

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