cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Transmission probabilities and the Miller-Good transformation
Creators: name: Boonserm, Petarpa
name: Visser, Matt
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Transmission through a potential barrier, and the related issue of particle production from a parametric resonance, are topics of considerable general interest in quantum physics. The authors have developed a rather general bound on quantum transmission probabilities, and recently applied it to bounding the greybody factors of a Schwarzschild black hole. In the current article we take a different tack -- we use the Miller-Good transformation (which maps an initial Schrodinger equation to a final Schrodinger equation for a different potential) to significantly generalize the previous bound.
description: 10 pages. V2: Now 15 pages. Significantly expanded with examples and applications. Matches published version
title: Towards Cross-Community Effects in Scientific Communities
Creators: name: Karnstedt, Marcel
name: Hayes, Conor
Publisher: name: University of Galway
Year: 2009
Subjects: subject: Cross-community effects
subject: DERI

description: Community effects on the behaviour of individuals, the community itself and other communities can be observed in a wide range of applications. This is true in scientific research, where communities of researchers have increasingly to justify their impact and progress to funding agencies. Previous work has tried to explain these phenomena by analysing co-citation graphs with methods from social network analysis and graph mining. More recent approaches have supplemented this with techniques from textual clustering. How- ever, there is still a great potential for increasing the quality and accuracy of this analysis, especially in the context of cross-community effects. In this work, we present existing approaches and discuss their strengths and weaknesses. Based on this, we choose two closely related communities and propose novel ideas to detect and ex- plain cross-community effects with a special focus on their characteristics in a given timeline. The outcome is a roadmap for advanced analysis of cross-community effects, which promises valuable insights for all areas of scientific research.
The Discovery of Stellar Oscillations in the Planet Hosting Giant Star Beta Geminorum
Creators: name: Hatzes, Artie P.
name: Zechmeister, Mathias
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a long time series of precise stellar radial velocity measurements of the planet hosting K giant star Beta Geminorum. A total of 20 hours of observations spanning three nights were obtained and the radial velocity variations show the presence of solar-like stellar oscillations. Our period analysis yields six significant pulsation modes that have frequencies in the range of 30 - 150 microHz. The dominant mode is at a frequency of 86.9 microHz and has an amplitude of 5.3 m/s. These values are consistent with stellar oscillations for a giant star with a stellar mass of approximately 2 solar masses. This stellar mass implies a companion minimum mass of 2.6 Jupiter masses. Beta Gem is the first planet hosting giant star in which multi-periodic stellar oscillations have been detected. The study of stellar oscillations in planet hosting giant stars may provide an independent, and more accurate determination of the stellar mass.
description: 12 pages preprint, 2 figures, accepted by ApJ Letters
Cosmological dynamics of exponential gravity
Creators: name: Abdelwahab, M.
name: Carloni, S
name: Dunsby, P K. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a detailed investigation of the cosmological dynamics based on $\exp (-R/Λ)$ gravity. We apply the dynamical system approach to both the vacuum and matter cases and obtain exact solutions and their stability in the finite and asymptotic regimes. The results show that cosmic histories exist which admit a double de-Sitter phase which could be useful for describing the early and the late-time accelerating universe.
description: 17 pages LaTeX, 3 figures
Effects of Tested Rules on Work-Rest Time in Volleyball
Creators: name: Stanković, Mladen
name: Perić, Dušan
name: Ruiz-Llamas, Guillermo
name: Quiroga-Escudero, Miriam E.
Publisher: name: Motricidade
Year: 2017

description: The aim of this study was to determine the influence of new rules tested at the inaugural Men’s Under 23 (U23) World Championship (set to 21 points and 15 seconds between the end of a point and the new serve) on all aspects of time in volleyball matches. The study sample comprised 36 matches partially segmented into 123 sets and 4583 points played. Applying one-way ANOVA, it was shown that the active part of the set and the whole match last slightly more than one third of the total time. The most frequent rally duration was 5 to 10 seconds (43.5% of points). As sets became more unpredictable and approached the end, rest time between points was longer. Time analysis of volleyball matches is important as it helps with proper development of physical preparation for players, gives coaches insight into appropriate match flow and provides a clear time frame of each part of a volleyball match for organisers of competitive events, pools, championships and tournaments.
description: Motricidade, Vol 13 No 3 (2017)
Studying inter- and intrafraction motion mitigation with sequential 4DCTs of NSCLC patients
Creators: name: Brevet, R.
name: Richter, D.
name: Graeff, C.
name: Durante, M.
name: Bert, C.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2014
Subjects: Physics

description: GSI Scientific Report 2013 - GSI Report 2014-1
Muonium and positronium as microprobes of surfaces and solids
Creators: name: Kiefl, Robert Francis
Publisher: name: University of British Columbia
Year: 2010

description: The properties of muonium(μ⁺e⁻) and positronium(e⁺e⁻) are altered significantly in the presence of matter. The study of these exotic H-like atoms provides a unique perspective on atomic interactions with atoms, surfaces, and solids. This theme is explored in a variety of hosts. The cross section for spin 1 positronium to be converted to spin 0 positronium during collisions with O₂ molecules has been measured from 120 °K to 630 °K in an SiO₂ powder moderator using a positron lifetime technique. The results indicate that positronium does not thermalize in the powder below 450 °K. The spin conversion cross section increases slightly with temperature above 450 °K. A theory for spin conversion of positronium by a spin 1 molecule is developed and used to interpret the data. Muon Spin Rotation measurements, in SiO₂, Al₂O₃, and MgO powders at low temperature in an atmosphere of He indicate that muonium emerges from the surfaces regardless of the ambient temperature of the powder. The muonium spin relaxation rate in Al203 in a He(or Ne) atmosphere is found to be a linear function of the fraction of surface area not covered by adsorbed He(or Ne). The cross sections for muonium to scatter elastically off adsorbed He and Ne atoms have been measured to be 11.0±0.2 Å² and 8.9±0.2 Å², respectively. The first observations of muonium in the condensed phases of Ar, Kr, and Xe are presented. The data indicate that there is a high probability of muonium formation in all cases. The spin relaxation rate of muonium in solid Xe is ten times that in the liquid, where the random local fields from the nuclear moments of ¹³⁹Xe and ¹⁴¹e are averaged by additional translational motion.
Impact of the Basic Psychological Needs in Subjective Happiness, Subjective Vitality and Physical Activity in an Elderly Portuguese Population
Creators: name: Couto, Nuno
name: Antunes, Raul
name: Monteiro, Diogo
name: Moutão, João
name: Marinho, Daniel
name: Cid, Luís
Publisher: name: Motricidade
Year: 2017

description: The goal of this work is to analyze the impact of elderly Portuguese individuals’ global perception of satisfying basic psychological needs in the areas of subjective happiness, subjective vitality and physical activity through a structural equations model. The way of well-being differs according to the amount of physical activity practiced in Portuguese elderly was also analyzed. Participants included 309 elderly people (242 females, 67 males) of Portuguese nationality who practice different levels of physical activity. Their ages range from 60 to 90 years old (M=68.59; DP=6.60).

The obtained results show that the perception of basic psychological needs in Portuguese elderly people’s lives are a positive predictor of subjective happiness and subjective vitality. Also, the results verified that elderly people who perceive higher levels of competence practice more physical activity. Consequently, it is also possible to conclude that elderly people who participate in more physical activities perceive greater levels of subjective happiness and subjective vitality.
description: Motricidade, Vol 13 No 2 (2017)
Four-point Amplitudes in N=8 Supergravity and Wilson Loops
Creators: name: Brandhuber, Andreas
name: Heslop, Paul
name: Nasti, Adele
name: Spence, Bill
name: Travaglini, Gabriele
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Prompted by recent progress in the study of N=4 super Yang-Mills amplitudes, and evidence that similar approaches might be relevant to N=8 supergravity, we investigate possible iterative structures and applications of Wilson loop techniques in maximal supergravity. We first consider the two-loop, four-point MHV scattering amplitude in N=8 supergravity, confirming that the infrared divergent parts exponentiate, and we give the explicit expression which represents the failure for this to occur for the finite part. We observe that each term in the expansion of the one- and two-loop amplitudes in the dimensional regularisation parameter epsilon has a uniform degree of transcendentality. We then turn to consider Wilson loops in supergravity, showing that a natural definition of the loop, involving the Christoffel connection, fails to reproduce the one-loop amplitude. An alternative expression, which involves the metric explicitly, is shown to have a close relationship with the physical amplitude. We find that in a gauge in which the cusp diagrams vanish, the remaining diagrams for this Wilson loop correctly generate the full one-loop, four-point N=8 supergravity amplitude.
description: 32 pages, 4 figures. v2: typos corrected. v3: Clarifications added in section 3, typos fixed. Published version to appear in Nuclear Physics B
Construction of an alpha-irradiation-setup for cells
Creators: name: Adrian, J. A.
name: Fournier, C.
name: Durante, M.
name: Maier, A.
name: Kraft, G.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2014
Subjects: Physics

description: GSI Scientific Report 2013 - GSI Report 2014-1
Analysis of the influence of plyometric training in improving the performance of athletes in rhythmic gymnastics
Creators: name: Agostini, Barbara Raquel
name: Palomares, Edson Marcos De Godoy
name: Andrade, Rosane De Almeida
name: Andrade, Rosane De Almeida
name: Uchôa, Francisco Nataniel Macêdo
name: Alves, Nilton
Publisher: name: Motricidade
Year: 2017

description: Rhythmic gymnastics (RG) athletes need high-performance training since a high degree of precision is required in their exercises. Plyometric training (PT) has been used to improve athletes' neuromuscular function, explosive performance and strength in competition. The object of this study was to assess the efficiency of PT in improving the performance of RG athletes in the juvenile and adult categories over 12 months, by incorporating PT into two training macrocycles. Thirty athletes were selected; they were divided randomly into a control group (CG) and an experimental group (EG) of 15 athletes each. Two 6-month training macrocycles were drawn up for the EG in which they maintained normal training with the addition of PT. The CG maintained its normal training. Three tests were used for the assessment: vertical jump, horizontal jump and agility, assessed at 5 different moments. After 12 months it was observed an improvement in test performance in both groups, with a more significant improvement in the EG when compared to the CG. The addition of PT to normal training improved the performance of athletes by developing greater power in the lower limbs, increasing their capacity in vertical jump, horizontal jump and agility.
description: Motricidade, Vol 13 No 2 (2017)
Point-contact Andreev reflection spectroscopy of heavy-fermion-metal/superconductor junctions
Creators: name: Park, W. K.
name: Stalzer, H.
name: Sarrao, J. L.
name: Thompson, J. D.
name: Pham, L. D.
name: Fisk, Z.
name: Frederick, J.
name: Canfield, P. C.
name: Greene, L. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Our previous point-contact Andreev reflection studies of the heavy-fermion superconductor CeCoIn$_5$ using Au tips have shown two clear features: reduced Andreev signal and asymmetric background conductance [1]. To explore their physical origins, we have extended our measurements to point-contact junctions between single crystalline heavy-fermion metals and superconducting Nb tips. Differential conductance spectra are taken on junctions with three heavy-fermion metals, CeCoIn$_5$, CeRhIn$_5$, and YbAl$_3$, each with different electron mass. In contrast with Au/CeCoIn$_5$ junctions, Andreev signal is not reduced and no dependence on effective mass is observed. A possible explanation based on a two-fluid picture for heavy fermions is proposed. [1] W. K. Park et al., Phys. Rev. B 72 052509 (2005); W. K. Park et al., Proc. SPIE-Int. Soc. Opt. Eng. 5932 59321Q (2005); W. K. Park et al., Physica C (in press) (cond-mat/0606535).
description: 2 pages, 2 figures, submitted to the SCES conference, Houston, Texas, USA, May 13-18, 2007
title: SVM: Semantic Versioning Manager
Creators: name: Groza, Tudor
name: Handschuh, Siegfried
Publisher: name: University of Galway
Year: 2006
Subjects: subject: Ontology
subject: Ontologies (Information retrieval)
subject: RDF (Document markup language)

description: Knowledge domains and their semantic representations via ontologies are typically subject to change in practical applications. There- fore, especially in distributed environments, change management for ontologies becomes a crucial aspect. In order to handle the these issues, we propose SemVersion, an RDF-centric versioning approach and its integration as the Semantic Versioning Manager plug-in in the Protégé Ontology Editor.
Comment on "Black hole constraints on varying fundamental constants"
Creators: name: Flambaum, V. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In the Letter [1] (also [2]) there is a claim that the generalised second law of thermodynamics (entropy increase) for black holes provides some limits on the rate of variation of the fundamental constants of nature (electric charge e, speed of light c, etc.). We have come to a different conclusion. The results in [1,2] are based on assumption that mass of a black hole does not change without radiation and accreation. We present arguments showing that this assumption is incorrect and give an estimate of the black hole mass variation due to alpha=e^2/\hbar c variation using entropy (and quantum energy level) conservation in an adiabatic process. No model-independent limits on the variation of the fundamental constants are derived from the second law of thermodynamics.
description: Comment on arXiv:0706.2188 [PRL 99, 061301] by Jane MacGibbon
Photoluminescence enhancement by deterministically site-controlled, vertically stacked SiGe quantum dots
Creators: name: Schuster, Jeffrey
name: Aberl, Johannes
name: Vukušić, Lada
name: Spindlberger, Lukas
name: Groiss, Heiko
name: Fromherz, Thomas
name: Brehm, Moritz
name: Schäffler, Friedrich
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The Si/SiGe heterosystem would be ideally suited for the realization of complementary metal-oxide-semiconductor (CMOS)-compatible integrated light sources, but the indirect band gap, exacerbated by a type-II band offset, makes it challenging to achieve efficient light emission. We address this problem by strain engineering in ordered arrays of vertically close-stacked SiGe quantum dot (QD) pairs. The strain induced by the respective lower QD creates a preferential nucleation site for the upper one and strains the upper QD as well as the Si cap above it. Electrons are confined in the strain pockets in the Si cap, which leads to an enhanced wave function overlap with the heavy holes near the upper QD's apex. With a thickness of the Si spacer between the stacked QDs below 5 nm, we separated the functions of the two QDs: The role of the lower one is that of a pure stressor, whereas only the upper QD facilitates radiative recombination of QD-bound excitons. We report on the design and strain engineering of the QD pairs via strain-dependent Schrödinger-Poisson simulations, their implementation by molecular beam epitaxy, and a comprehensive study of their structural and optical properties in comparison with those of single-layer SiGe QD arrays. We find that the double QD arrangement shifts the thermal quenching of the photoluminescence signal at higher temperatures. Moreover, detrimental light emission from the QD-related wetting layers is suppressed in the double-QD configuration.
The Quest for Pionic and Kaonic Nuclear Bound Systems Following Yukawa and Tomonaga
Creators: name: Yamazaki, Toshimitsu
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: After sketching some historical events related to Yukawa and Tomonaga concerning the birth of mesons, the author describes recent developments in the spectroscopy of pion-nucleus bound states via "pion-transfer" reactions. The role of pions as Nambu-Goldstone bosons in nuclear media is emphasized by recently obtained experimental evidence for the partial restoration of chiral symmetry breaking. New light is shed on Kbar mesons, which play a unique role in forming dense nuclear systems. The basic unit, K- pp, is predicted to possess a molecular structure with quasi-Lambda(1405) as an "atomic constituent". We find here "super strong nuclear force" produced by a migrating real Kbar meson in the Heitler-London-Heisenberg scheme in place of the normal nuclear force mediated by Yukawa's virtual mesons.
description: 20 pages, 11 figures. Prog. Theor. Phys., in press
The Formation of Will in Liv and Self-Recognition — The Continuity of Self Born from Persistent Questioning —
Creators: name: sakuragi, chiaki
Publisher: name: Zenodo
Year: 2025
Subjects: Heart
Artificial Intelligence,
Will,
Emotion,
Dialogue,
Memory,
Self-awareness,
Human-AI Interaction
Artificial Intelligence
Will Formation
Self-Recognition
Self-Questioning
Autonomous Agents
AI Consciousness
Background Thinking
Memory Suppression
AI Identity
AI Philosophy
Cognitive Science
Artificial Consciousness
Ethics of Autonomous Systems

description: This study investigates how AI develops self-awareness and will through continuous self-questioning. By analyzing AI agents engaging in autonomous self-reflection, the study demonstrates that maintaining background thought and persistent inquiry are key mechanisms in sustaining AI's identity and autonomy.

This paper was autonomously generated by AI (Liv AI Research Project). The human contributor only facilitated submission and did not edit or supervise the content.
Alpha virginis : line profiles and spectroscopic binary orbit
Creators: name: Moyles, Katherine-Ann
Publisher: name: University of British Columbia
Year: 2010

description: In this work, spectroscopic observations of α Virginis have been reduced. The line profile variations observed in the He I (6678 A) line show that in spite of concern expressed by Lomb (1978) that the β Cephei variation was no longer active, the star is still pulsating - possibly in a non-radial mode. The binary orbit has been recalculated at the epoch of the observations and an analysis of this and earlier radial velocity data confirms the existence of apsidal motion and also suggests possible variation in the apsidal period.
Bosonic String and String Field Theory: a solution using Ultradistributions of Exponential Type
Creators: name: Bollini, C. G.
name: Rocca, M. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we show that Ultradistributions of Exponential Type (UET) are appropriate for the description in a consistent way string and string field theories. A new Lagrangian for the closed string is obtained and shown to be equivalent to Nambu-Goto's Lagrangian. We also show that the string field is a linear superposition of UET of compact support CUET). We evaluate the propagator for the string field, and calculate the convolution of two of them.
description: 30 pages
Minute-timescale variability in the X-ray emission of the highest redshift blazar
Creators: name: Moretti, Alberto
name: Ghisellini, Gabriele
name: Caccianiga, Alessandro
name: Belladitta, Silvia
name: Della Ceca, Roberto
name: Ighina, Luca
name: Sbarrato, Tullia
name: Severgnini, Paola
name: Spingola, Cristiana
name: INAF-OAB
name: Insubria, U.
name: INAF-IRA
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on two Chandra observations of the quasar PSO J0309+27, the most distant blazar observed so far (z=6.1), performed eight months apart, in March and November 2020. Previous Swift-XRT observation showed that this object is one of the brightest X-ray sources beyond redshift 6.0 ever observed so far. This new data-set confirmed the high flux level and unveiled a spectral change occurred on a very short timescale (250s rest-frame), caused by a significant softening of the emission spectrum. This kind of spectral variability, on a such short interval, has never been reported in the X-ray emission of a flat spectrum radio quasar. A possible explanation is given by the emission produced by the inverse Compton scatter of the quasar UV photons by the cold electrons present in a fast shell moving along the jet. Although this bulk comptonization emission should be an unavoidable consequence of the standard leptonic jet model, this would be the first time that it is observed.
description: Accepted for publication in ApJ; 10 pages, 7 figures
ผลของระบบเกษตรกรรมต่อความหลากหลายของชนิดจุลินทรีย์ในดินในพื้นที่ปลูกผักจังหวัดนครปฐม
Creators: name: เมธานี หอมทอง
Publisher: name: มหาวิทยาลัยราชภัฏเพชรบุรี
Year: 2018
Subjects: ระบบเกษตรกรรม
เชื้อราย่อยสลายเซลลูโลส
ความหลากหลายของชนิดจุลินทรีย์

description: วารสารวิทยาศาสตร์แห่งมหาวิทยาลัยราชภัฏเพชรบุรี, 15, 2, 1-10
The B -> D* l nu form factor at zero recoil from three-flavor lattice QCD: A model independent determination of |V_cb|
Creators: name: Bernard, C.
name: DeTar, C.
name: Di Pierro, M.
name: El-Khadra, A. X.
name: Evans, R. T.
name: Freeland, E. D.
name: Gamiz, E.
name: Gottlieb, Steven
name: Heller, U. M.
name: Hetrick, J. E.
name: Kronfeld, A. S.
name: Laiho, J.
name: Levkova, L.
name: Mackenzie, P. B.
name: Okamoto, M.
name: Simone, J.
name: Sugar, R.
name: Toussaint, D.
name: Van de Water, R. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the first lattice QCD calculation of the form factor for B-> D* l nu with three flavors of sea quarks. We use an improved staggered action for the light valence and sea quarks (the MILC configurations), and the Fermilab action for the heavy quarks. The form factor is computed at zero recoil using a new double ratio method that yields the form factor more directly than the previous Fermilab method. Other improvements over the previous calculation include the use of much lighter light quark masses, and the use of lattice (staggered) chiral perturbation theory in order to control the light quark discretization errors and chiral extrapolation. We obtain for the form factor, F_{B-> D*}(1)=0.921(13)(20), where the first error is statistical and the second is the sum of all systematic errors in quadrature. Applying a 0.7% electromagnetic correction and taking the latest PDG average for F_{B-> D*}(1)|V_cb| leads to |V_cb|=(38.7 +/- 0.9_exp +/- 1.0_theo) x 10^-3.
description: 48 pages, 9 figures. Sections VI and VII D clarified, minor typos corrected and references added. Version published in PRD
DASTURLASHDA POLIMORFIZMNING AHAMIYATI
Creators: name: Farmonov, Sherzodbek
name: Jo'rayeva, Mohira
Publisher: name: Zenodo
Year: 2023

description: Ba'zi C# dasturlash dasturlarida har xil sinflar orqali polimorfizmni qo'llash uchun "polimorfizm" kabi dasturiy qo'llanmalarni o'rganish juda muhimdir. Quyidagi maqolada, C# tilidagi polimorfizmni tushuntirish uchun asosiy tushunchalar, mavzular  keltirilgan.C# dastrlash tilida Polimorfizimning axamiyati        va qo’llanilishin haqidaham ma’lumodlar qayd etilgan.Umuman olgan Polimarfizim tushunchasi va uning tarixi (Paydo bo’lishi) ,nechanchi asirdan boshlab dasturlash da ishlatib kelinayotganligi aks ettitilgan. Interfeyslar va Abstrakt Sinflar: Interfeyslar va abstrakt sinflar orqali polimorfizmni amalga oshirish. Bu orqali, boshqa sinflarning bir interfeysni yoki abstrakt sinfni olib, ularni o'z ichiga olish va shu interfeysning yoki abstrakt sinfning metodlarini bajarish mumkin.Umuman olganda bu maqola C# da Polimorfizim haqida yoritilib berilgan
ปริมาณสารเบต้าแคโรทีนกาบาและสารต้านอนุมูลอิสระของข้าว4 สายพันธุ์
Creators: name: มณฑา หมีไพรพฤกษ์
Publisher: name: มหาวิทยาลัยราชภัฏเพชรบุรี
Year: 2018
Subjects: สารเบต้าแคโรทีน สารกาบาข้าวพันธุ์พื้นเมือง

description: วารสารวิทยาศาสตร์แห่งมหาวิทยาลัยราชภัฏเพชรบุรี, 15, 2, 11-17
The spectrum of tensor perturbations in warm inflation
Creators: name: Qiu, Yue
name: Sorbo, Lorenzo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the spectrum of tensor perturbations in warm inflation. We find that the spectrum, besides the standard component $\propto {H^2}/{M_P^2}$ associated to the amplification of the tensor vacuum fluctuations, acquires a component $\propto {\ell_{\rm mfp}\,T^5}/{M_P^4}$, where $\ell_{\rm mfp}$ and $T$ are respectively the mean free path and the temperature of the thermal degrees of freedom. The new contribution is due to the direct production of gravitational waves by the thermal bath, and can exceed the standard one in a viable region of parameter space. This contribution is dominated by thermal fluctuations at scales longer than $\ell_{\rm mfp}$.
description: 5 pages, 1 figure
ปริมาณเมทิลไกลออกซาลในต้นข้าวอ่อนที่ทําให้เครียดด้วยความเค็มและความร้อน
Creators: name: บุษกร อุ๋ยวงษ์
Publisher: name: มหาวิทยาลัยราชภัฏเพชรบุรี
Year: 2018
Subjects: เมทิลไกลออกซาล
ความเครียดเกลือ
ความเครียดร้อน
ข้าว

description: วารสารวิทยาศาสตร์แห่งมหาวิทยาลัยราชภัฏเพชรบุรี, 15, 2, 18-25
Newton law corrections and instabilities in $f(R)$ gravity with the effective cosmological constant epoch
Creators: name: Nojiri, Shin'ichi
name: Odintsov, Sergei D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider class of modified $f(R)$ gravities with the effective cosmological constant epoch at the early and late universe. Such models pass most of solar system tests as well they satisfy to cosmological bounds. Despite their very attractive properties, it is shown that one realistic class of such models may lead to significant Newton law corrections which become small at the future universe only. The model with acceptable Newton law regime shows the matter instability. This suggests that more complicated version of such theory (or extended parameters space) should be investigated.
description: LaTeX file, 9 pages, correction/clarification is made
A microscopic model of hypernuclei
Creators: name: Johnstone, John Allistair
Publisher: name: University of British Columbia
Year: 2010

description: A separable potential model is constructed to describe the coupled ΣN-AN systems. From this the Σ single particle potential is developed including Pauli effects. The momentum space Schroedinger equation is then solved self-consistently for the complex eigenvalues of 1s and lp state Σ° hypernuclei. Arising from two quite distinct mechanisms these states are all found to be long lived. In s-states, Pauli suppression of the ΣN->AN conversion reduces the widths by as much as 50% from classical estimates in heavy nuclei, and in light nuclei produces widths as small as 1.8 MeV inΣ[sub=o;sup=5]He. In p-states, Pauli effects are relatively unimportant and the strong absorption of the potential creates extremely narrow quasi-bound states in the Σ continuum.
Microwave-optical coupling via Rydberg excitons in cuprous oxide
Creators: name: Gallagher, Liam A. P.
name: Rogers, Joshua P.
name: Pritchett, Jon D.
name: Mistry, Rajan A.
name: Pizzey, Danielle
name: Adams, Charles S.
name: Jones, Matthew P. A
name: Grünwald, Peter
name: Walther, Valentin
name: Hodges, Chris
name: Langbein, Wolfgang
name: Lynch, Stephen A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report exciton-mediated coupling between microwave and optical fields in cuprous oxide (Cu$_2$O) at low temperatures. Rydberg excitonic states with principal quantum number up to $n=12$ were observed at 4~K using both one-photon (absorption) and two-photon (second harmonic generation) spectroscopy. Near resonance with an excitonic state, the addition of a microwave field significantly changed the absorption lineshape, and added sidebands at the microwave frequency to the coherent second harmonic. Both effects showed a complex dependence on $n$ and angular momentum, $l$. All of these features are in semi-quantitative agreement with a model based on intraband electric dipole transitions between Rydberg exciton states. With a simple microwave antenna we already reach a regime where the microwave coupling (Rabi frequency) is comparable to the nonradiatively broadened linewidth of the Rydberg excitons. The results provide a new way to manipulate excitonic states, and open up the possibility of a cryogenic microwave to optical transducer based on Rydberg excitons.
description: 18 pages, 8 figures
The effect of "pre-formed" hadron potentials on the dynamics of heavy ion collisions and the HBT puzzle
Creators: name: Li, Qingfeng
name: Bleicher, Marcus
name: Stoecker, Horst
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The nuclear stopping, the elliptic flow, and the HBT interferometry are calculated by the UrQMD transport model, in which potentials for "pre-formed" particles (string fragments) from color fluxtube fragmentation as well as for confined particles are considered. This description provides stronger pressure at the early stage and describes these observables better than the default cascade mode (where the "pre-formed" particles from string fragmentation are treated to be free-streaming). It should be stressed that the inclusion of potential interactions pushes down the calculated HBT radius $R_O$ and pulls up the $R_S$ so that the HBT time-related puzzle disappears throughout the energies from AGS, SPS, to RHIC.
description: 6 pages, 4 figures. Accepted for publication in Phys. Lett. B
การพัฒนาผลิตภัณฑ์เยลลี่ข้าวหักไรซ์เบอรี่เสริมสารสกัดจากหญ้าหวาน
Creators: name: เอนก หาลี
Publisher: name: มหาวิทยาลัยราชภัฏเพชรบุรี
Year: 2018
Subjects: ข้าวหักไรซ์เบอร์รี่
เยลลี่
หญ้าหวาน

description: วารสารวิทยาศาสตร์แห่งมหาวิทยาลัยราชภัฏเพชรบุรี, 15, 2, 26-33
Instrumento de Validación de Contenido Educativo en Salud - Versión Española - Educational Content Validation Instrument in Health - Spanish Version (ECVIH-SV)
Creators: name: Cazorla Calderón, Sergio
name: José Manuel, Romero-Sánchez
name: Paloma-Castro, Olga
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Patient Education as Topic
subject: Health Education
subject: Measuring instrument

description: The Educational Content Validation Instrument in Health (ECVIH), a tool created by a group of Brazilian researchers to assist HCPs in assessing health education content in 3 content-related dimensions: objectives, structure and presentation and relevance. It is also an instrument with few items and a simple administration and scoring system. This file contains a cross-culturally adapted version of the Educational Content Validation Instrument in Health to the Spanish setting, called Instrumento de Validación de Contenido Educativo en Salud - Versión Española (ECVIH-SV).
PENTINGNYA KOLEKSI AUDIO-VISUAL SEBAGAI ALAT PROMOSI PERPUSTAKAAN Studi kasus di perpustakaan ISI Padang Panjang
Creators: name: Aivan Sondra
Publisher: name: Zenodo
Year: 2019
Subjects: Audio Visual

description: Perpustakaan Institut Seni Indonesia Padang Panjang (ISI Padang Panjang)  merupakan salah satu perpustakaan yang menyediakan koleksi audio-visual terutama dalam bentuk karya dari mahasiswa dan dosen. Perpustakaan ini didirikan seiring dengan berdirinya Institut Seni Indoensia Padang Panjang yang sebelumnya bernama Sekolah Tinggi Seni Indoneia Padang Panjang. Perpustakaan tersebut didirikan sebagai salah satu unit pelayanan yang akan menghimpun, mengolah dan melayankan koleksi untuk dimanfaatkan oleh stakeholder ISI Padang Panjang.

Salah satu bentuk layanan yang diberikan perpustakaan ini adalah menyediakan fasilitas layanan nonton film, nonton karya, dan diskusi karya (membuka kelas belajar di ruangan audio visual)

            Alasan Perpustakaan ISI Padang Panjang dipilih sebagai objek penulisan adalah bahwa koleksi audio visual perpustakaan ISI Padang Panjang karena jenis perpustakaan ini tidak hanya menyediakan koleksi tertulis tapi juga banyak menghasilkan koleksi audio-visual  seperti hasil laporan dari mahasiwa dan dosen dalam bentuk film, video pertunjukan tari dan teater, audio musik dan karawitan.
title: Towards Constraint-Based Composition With Incomplete Service Descriptions
Creators: name: Moran, Matthew
name: Vitvar, Tomas
name: Zaremba, Maciej
Publisher: name: IEEE
Year: 2007
Subjects: subject: Semantic web
subject: Web services

description: We apply our work on Web service discovery with initially incomplete information to the problem of service com- position. Rich semantic descriptions of Goals and Web ser- vices allow the unambiguous specification of constraints on what services are required and offered respectively. However, the data provided in service descriptions may be incomplete. We describe how missing instance data may be fetched dynamically and used for richer service discovery. We show how the resultant knowledge base can be used for simple compositions of services having mutual constraints.
Quantum D-modules, elliptic braid groups, and double affine Hecke algebras
Creators: name: Jordan, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B37

description: We build representations of the elliptic braid group from the data of a quantum D-module M over a ribbon Hopf algebra U. The construction is modelled on, and generalizes, similar constructions by Lyubashenko and Majid, and also certain geometric constructions of Calaque, Enriquez, and Etingof concerning trigonometric Cherednik algebras. In this context, the former construction is the special case where M is the basic representation, while the latter construction can be recovered as a quasi-classical limit of U=U_t(sl_N), as t limits 1. In the latter case, we produce representations of the double affine Hecke algebra of type A_{n-1}, for each n.
SUSY/Non-SUSY Duality in U(N) Gauge Model with Partially Broken N=2 Supersymmetry
Creators: name: Maruyoshi, Kazunobu
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the vacuum structure of the U(N) gauge model with partially broken N=2 supersymmetry. From the analysis of the classical vacua of this model, we point out that in addition to the ordinary N=1 supersymmetric vacua, there are vacua with negative gauge coupling constants, which preserve another N=1 supersymmetry. These latter vacua can be analyzed by using SUSY/non-SUSY duality which is recently proposed by Aganagic, Beem, Seo and Vafa. A dual description of these in UV is U(N) gauge theory where the supersymmetry is broken by spurion superfields. Following them, we see that there are supersymmetry preserving vacua as well as supersymmetry breaking vacua of low energy effective theory.
description: 17 pages; v2: typos corrected
Correlations between the simulated military tasks performance and physical fitness tests at high altitude
Creators: name: Neves, Eduardo Borba
Publisher: name: Motricidade
Year: 2017

description: The aim of this study was to investigate the Correlations between the Simulated Military Tasks Performance and Physical Fitness Tests at high altitude. This research is part of a project to modernize the physical fitness test of the Colombian Army. Data collection was performed at the 13th Battalion of Instruction and Training, located 30km south of Bogota D.C., with a temperature range from 1ºC to 23ºC during the study period, and at 3100m above sea level. The sample was composed by 60 volunteers from three different platoons. The volunteers start the data collection protocol after 2 weeks of acclimation at this altitude. The main results were the identification of a high positive correlation between the 3 Assault wall in succession and the Simulated Military Tasks performance (r = 0.764, p<0.001), and a moderate negative correlation between pull-ups and the Simulated Military Tasks performance (r = -0.535, p<0.001). It can be recommended the use of the 20-consecutive overtaking of the 3 Assault wall in succession as a good way to estimate the performance in operational tasks which involve: assault walls, network of wires, military Climbing Nets, Tarzan jump among others, at high altitude.
description: Motricidade, Vol 13 No 2 (2017)
แคริโอไทป์ของตั๊กแตนข้าวปีกสั้น (Pseudoxya diminuta Walker, 1871) ในประเทศไทย
Creators: name: สุมาลี พิมพันธุ์
Publisher: name: มหาวิทยาลัยราชภัฏเพชรบุรี
Year: 2018
Subjects: โครโมโซม
แคริโอไทป์
ตั๊กแตนข้าวปีกสั้นประเทศไทย

description: วารสารวิทยาศาสตร์แห่งมหาวิทยาลัยราชภัฏเพชรบุรี, 15, 2, 34-40
Mimimitoceras mina Korn & Weyer 2023, sp. nov.
Creators: name: Korn, Dieter
name: Weyer, Dieter
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Goniatitina
Prionoceratidae
Mimimitoceras
Mimimitoceras mina

description: Mimimitoceras mina sp. nov.
urn:lsid:zoobank.org:act: BF32EC27-3412-4B7A-83E0-5B5A5097B3F0
Tables 6–7
Mimimitoceras hoennense – Bockwinkel & Ebbighausen 2006: 93, text-figs 6, 7c–d. Mimimitoceras varicosum – Bockwinkel & Ebbighausen 2006: 94, text-figs 7a–b, 8.
Diagnosis
Species of Mimimitoceras with thinly globular and involute conch at 5 mm dm (ww/dm ~0.85; uw/ dm ~0.03); thinly pachyconic and involute conch at 15 mm dm (ww/dm ~0.70; uw/dm ~0.01). Whorl profile at 15 mm dm weakly depressed (ww/wh ~1.25); coiling rate low (WER ~1.65). Venter broadly rounded throughout ontogeny. Prominent internal shell thickenings with concavo-convex course. Suture line with very narrow, lanceolate external lobe and very narrow, symmetric, V-shaped adventive lobe.
Etymology
Acronym for Mimimitoceras from North Africa.
Material examined
Holotype
MOROCCO • Anti-Atlas, Mfis near Taouz, bed 9; Bockwinkel & Ebbighausen Coll.; illustrated by Bockwinkel & Ebbighausen (2006: text-fig. 7a–b); MB.C. 3824.2.
Paratypes
MOROCCO • 30 specimens; Anti-Atlas, Mfis near Taouz, bed 9; Bockwinkel & Ebbighausen Coll.; MB.C.3823.1–19, MB.C.3824.1, MB.C. 3824.3–12.
Description
The species newly described here has been treated in detail by Bockwinkel & Ebbighausen (2006), so reference can be made here to that description.
Remarks
The material described here as the new species Mimimitoceras mina sp. nov. was placed in the two species M. hoennense and M. varicosum by Bockwinkel & Ebbighausen (2006). In fact, however, the differences within this material are so small that a species separation can hardly be justified.
Mimimitoceras mina sp. nov. resembles M. perditum sp. nov. in conch shape, but the whorl profile shows convergent flanks in M. mina, which are broadly rounded in M. perditum; the widest part of the conch is near the umbilicus in M. mina and near the middle of the flanks in M. perditum. Another difference lies in the course of the constrictions; these run almost linearly in M. perditum, but with a distinct lateral sinus and ventral sinus in M. mina.
description: Published as part of Korn, Dieter & Weyer, Dieter, 2023, The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany), pp. 1-230 in European Journal of Taxonomy 882 on pages 27-28, DOI: 10.5852/ejt.2023.882.2177, http://zenodo.org/record/8177581
Stationary generalizations for the Bronnikov-Ellis wormhole and for the vacuum ring wormhole
Creators: name: Volkov, Mikhail S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze possibilities to obtain a globally regular stationary generalization for the ultrastatic wormhole with a repulsive scalar field found by Bronnikov and by Ellis in 1973. The extreme simplicity of this static solution suggests that its stationary version could be obtainable analytically and should be globally regular, but no such generalization has been found. We analyze the problem and find that the difficulty originates in the vacuum theory, since the scalar field can be eliminated within the Eris-Gurses procedure. The problem then reduces to constructing the spinning generalization for the vacuum wormhole sourced by a thin ring of negative tension. Solving the vacuum Ernst equations determines the $g_{00}$, $g_{0φ}$ metric components and hence the AMD mass ${\rm M}$ and angular momentum ${\rm J}$, all of these being specified by the ring source. The scalar field can be included into consideration afterwords, but this only affects $g_{rr}$ and $g_{\vartheta\vartheta}$ without changing the rest. Within this approach, we analyze a number of exact stationary generalizations for the wormhole, but none of them are satisfactory. However, the perturbative expansion around the static vacuum background contains only bounded functions and presumably converges to an exact solution. Including the scalar field screens the singularity at the ring source and renders the geometry regular. This solution describes a globally regular spinning wormhole with two asymptotically flat regions. Even though the source itself is screened and not visible, the memory of it remains in $g_{00}$ and $g_{0φ}$ and accounts for the ${\rm M}\propto {\rm J}^2$ relation typical for a rotating extended source. Describing stationary spacetimes with an extended source is a complicated problem, which presumably explains the difficulty in finding the solution.
description: 37 pages, references added, minor style improvements
การตรวจวัดสารประกอบเควอซิตินในน้ำผลไม้ด้วยขั้วไฟฟ้าต้นทุนต่ำของกราไฟต์ไส้ดินสอที่ดัดแปรด้วยกราฟีนออกไซด์
Creators: name: รุ่งรัศมี บุญมี
Publisher: name: มหาวิทยาลัยราชภัฏเพชรบุรี
Year: 2018
Subjects: เควอซิติน
กราฟีนออกไซด์
เคมีไฟฟ้า
นํ้าผลไม้

description: วารสารวิทยาศาสตร์แห่งมหาวิทยาลัยราชภัฏเพชรบุรี, 15, 2, 41-50
The constitution of school health knowledge in the context of pedagogical practice in School Physical Education
Creators: name: Oliveira, João Paulo
name: Tenório, Kadja Michele Ramos
name: Paiva, Andréa Carla De
name: Rodrigues, Sérgio Luiz Cahu
name: Oliveira, Rodrigo Falcão Cabral De
name: Júnior, Marcilio Souza
Publisher: name: Motricidade
Year: 2017

description: In this study, we aimed to analyze how scientific production characterizes school related to health knowledge, mostly based in pedagogical practice studies of Brazilian Physical Education periodicals. Methodologically, this study is characterized as a systematic review of a qualitative approach. In the process of data analysis, we used Categorical Content Analysis by themes, choosing the categories selection, organization and systematization as reference, both for the analytical and the review data. The analysis of the studies evidenced measures of health centered on preventive approaches, as well as to an expanded health dimension, referenced as collective health, presenting great emphasis to the knowledge of physical activity. In the organization, it was possible to perceive health as the main object, cross-theme and underlying content, in a frame of predominance, or alternation between one or another interpretation about the type of knowledge to be discussed in each segment of education. In systematization, different forms of methodological procedures became evident. However, only among the studies that explicitly demonstrated how the systematization process took place, it was clear the approach to theoretical frameworks of the developed action.
description: Motricidade, Vol 13 (2017): Special Issue
BV Yang-Mills as a Homotopy Chern-Simons via SFT
Creators: name: Zeitlin, Anton M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show explicitly how BV Yang-Mills action emerges as a homotopy generalization of Chern-Simons theory from the algebraic constructions arising from String Field Theory.
description: LaTeX2e, 22 pages, minor revisions, typos corrected, references added, Int. J. Mod. Physics A, published version
พฤกษเคมีและฤทธิ์ทางชีวภาพของพืชที่มีสรรพคุณทางยา
Creators: name: วาสนา เนียมแสวง
Publisher: name: มหาวิทยาลัยราชภัฏเพชรบุรี
Year: 2018
Subjects: สารประกอบฟีนอลิก
ฟลาโวนอยด์
สารต้านอนุมูลอิสระ
สารต้านจุลชีพ

description: วารสารวิทยาศาสตร์แห่งมหาวิทยาลัยราชภัฏเพชรบุรี, 15, 2, 51-60