cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The EDGE-CALIFA Survey: Exploring the Star Formation Law through Variable Selection
Creators: name: Dey, Biprateep
name: Rosolowsky, Erik
name: Cao, Yixian
name: Bolatto, Alberto
name: Sanchez, Sebastian F.
name: Utomo, Dyas
name: Colombo, Dario
name: Kalinova, Veslina
name: Wong, Tony
name: Blitz, Leo
name: Vogel, Stuart
name: Loeppky, Jason
name: García-Benito, Rubén
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a multilinear analysis to determine the significant predictors of star formation in galaxies using the combined EDGE-CALIFA sample of galaxies. We analyze 1845 kpc-scale lines of sight across 39 galaxies with molecular line emission measurements from EDGE combined with optical IFU data drawn from CALIFA. We use the Least Absolute Shrinkage and Selection Operator (LASSO) to identify significant factors in predicting star formation rates. We find that the local star formation rate surface density is increased by higher molecular gas surface densities and stellar surface densities. In contrast, we see lower star formation rates in systems with older stellar populations, higher gas- and stellar-phase metallicities and larger galaxy masses. We also find a significant increase in star formation rate with galactocentric radius normalized by the disk scale length, which suggests additional parameters regulating star formation rate not explored in this study.
description: Accepted by MNRAS
Halicarcinus bedfordi Montgomery 1931
Creators: name: Rahayu, Dwi Listyo
name: Ng, Peter K. L.
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Hymenosomatidae
Halicarcinus
Halicarcinus bedfordi

description: Halicarcinus bedfordi Montgomery, 1931
 Halicarcinus bedfordi Montgomery, 1931: 425, pl. 27, figs 3, 3a, b. — Lucas 1980: 181, figs 3A, 5E, 6N, 7G, 9E, 9F. — Chuang & Ng 1994: 87. — Ng & Chuang 1996: 6.
 MATERIAL EXAMINED. — Indonesia. Otakwa, 4°57’S, 137°14’E, sandy mud, 4 m, estuary, 11.IX.1997, coll. A. Haris, 1 3.2 × 3.9 mm, 1 3.3 × 3.6 mm (ZRC 2002.606), 3 3.1 × 3.4 mm, 2.9 × 3.2 mm, 3.1 × 3.7 mm, 1 3.0 × 3.2 mm (RCO).
Ajkwa, intertidal, mud substrate in mangrove area, 12.VI.2001, coll. A. Pratiwi, 1 2.3 × 3 mm, 3
(2 ovigerous) 3.3 × 3.5 mm, 2.2 × 2.4 mm, 3.0 × 3.3 mm (ZRC 2002.605), 1 3.3 × 3.4 mm (MZB); 15.VI.2001, 1 2.0 × 2.3 mm (MZB).
Kamora, intertidal, mud substrate in mangrove area, 11.VII.2001, coll. A. Pratiwi, 5 (3 ovigerous) 3.3 × 3.6 mm, 2.5 × 2.8 mm, 2.4 × 2.8 mm (RCO), 3.0 × 3.3 mm, 3.3 × 3.5 mm (MNHN), 1 2.9 × 3.3 mm (MZB); 12.VII.2001, 1 2.3 × 2.7 mm (MZB); 13.VII.2001, 3 2.0 × 2.3 mm (MZB), 3.3 × 3.8 mm, 2.2 × 2.7 mm, 1 (ovigerous) 3.0 × 3.5 mm (MNHN); 20.IX.2001, 1 3.2 × 3.4 mm (MZB).
REMARKS
 The genus Halicarcinus (type species Cancer planatus Fabricius, 1775) contains 20 species but only one (Halicarcinusfilholi De Man, 1887, from Java) has been reported previously from Indonesian waters. Halicarcinus bedfordi was originally described from Western Australia but is also known from Northern Australia (Lucas 1980). The present specimens agree very well with the redescription and figures of this species by Lucas (1980), although there is some variation. The chelipeds of the largest males are substantially longer than those figured by Montgomery (1931) and Lucas (1980) for this species, but this is not unexpected, being previously observed in the related H. coralicola (Rathbun, 1909) (see Ng & Chuang 1996). The form of the anterolateral margin varies. In smaller specimens, the lateral angle is marked by a small spine, but in larger specimens, especially males, it expands to form a large dentiform structure, giving the carapace a broader appearance.
The male abdomen for this species is as described by Guinot & Richer de Forges (1997: 466, fig. 4A) for the genus, in which there are six segments, the telson being fused with segment 6 and barely separated by a faint suture (see also Lucas 1980).
description: Published as part of Rahayu, Dwi Listyo & Ng, Peter K. L., 2004, The Hymenosomatidae (Crustacea, Decapoda, Brachyura) of Timika (Irian Jaya, Indonesia), pp. 87-94 in Zoosystema 26 (1) on pages 88-89, DOI: 10.5281/zenodo.5390317
Transition Probability to Turbulent Transport Regime
Creators: name: Kawasaki, Mitsuhiro
name: Furuya, Atsushi
name: Yagi, Masatoshi
name: Itoh, Kimitaka
name: Itoh, Sanae-I.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Transition phenomena between thermal noise state and turbulent state observed in a submarginal turbulent plasma are analyzed with statistical theory. Time-development of turbulent fluctuation is obtained by numerical simulations of Langevin equation which contains hysteresis characteristics. Transition rates between two states are analyzed. Transition from turbulent state to thermal noise state occurs in entire region between subcritical bifurcation point and linear stability boundary.
description: 9 pages, 6 figures, to be published in Plasma Phys. Control. Fusion
In the Galactic disk, stellar [Fe/H] and age predict orbits and precise [X/Fe]
Creators: name: Ness, Melissa K.
name: Johnston, Kathryn V.
name: Blancato, Kirsten
name: Rix, Hans-Walter
name: Beane, Angus
name: Bird, Jonathan C.
name: Hawkins, Keith
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the structure of the element abundance--age--orbit distribution of the stars in the Milky Way's low-$α$ disk, by (re-)deriving precise [Fe/H], [X/Fe] and ages, along with orbits, for red clump stars from the APOGEE survey. There has been a long-standing theoretical expectation and observational evidence that metallicity ([Fe/H]) and age are informative about a star's orbit, e.g. about its angular momentum and the corresponding mean Galactocentric distance or its vertical motion. Indeed, our analysis of the APOGEE data confirms that [Fe/H] or age alone can predict the stars' orbits far less well than the combination of the two. Remarkably, we find and show explicitly, that for known [Fe/H] and age, the other abundances [X/Fe] of Galactic disk stars can be predicted well (on average to 0.02 dex) across a wide range of Galactocentric radii, and therefore provide little additional information, e.g. for predicting their orbit. While the age-abundance space for metal poor stars and potentially for stars near the Galactic center is rich or complex, for the bulk of the Galaxy's low-$α$ disk it is simple: [Fe/H] and age contain most information, unless [X/Fe] can be measured to 0.02, or better. Consequently, we do not have the precision with current (and likely near-future) data to assign stars to their individual (coeval) birth clusters, from which the disk is presumably formed. We can, however, place strong constraints on future models of galactic evolution, chemical enrichment and mixing.
description: 20 pages, 11 Figures, submitted to ApJ
MOESM1 of Molecular detection of drug resistant malaria in Southern Thailand
Creators: name: Chaturong Noisang
name: Prosser, Christiane
name: Meyer, Wieland
name: Waenurama Chemoh
name: Ellis, John
name: Nongyao Sawangjaroen
name: Lee, Rogan
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Table S1. A patient information and results summary (see Table B for P. vivax results summary by specimen).
ASSOCIATED fACTORS OF INFANT AND YOUNG CHILD FEEDING PRACTICE JIDALI MCH IN ERIGAVO DISTRICTY SANAG SOMALIA
Creators: name: Fadumo, Yusuf Jamac
Publisher: name: Zenodo
Year: 2025
Subjects: ASSOCIATED fACTORS
INFANT
YOUNG CHILD FEEDING
PRACTICE JIDALI MCH IN ERIGAVO DISTRICTY SANAG SOMALIA

description:  

ABSTRACT

 Infant and young child feeding practice is an intervention which can have a significant impact on reducing mortality and morbidity in young children. In fact, broad coverage of breastfeeding and complementary feeding interventions can reduce up to 20% of deaths in young children. IYCF indicators for Somalia are significant sub-optimal which means that Somali children do not get the best start in life.

 The potential negative impact of under nutrition during this critical period is not limited to childhood life rather it diminishes the individual level of productivity during adulthood, negatively affecting the future social and economic development of countries and leading the vicious cycle of intergenerational malnutrition.

 In Somalia major contributor to their deaths is poor breastfeeding practices and inadequate complimentary foods. The risk of death from diarrhea of partially breastfed infants 0-6 months of age was 8.6 times more risk than exclusively breastfed children .poor infant and young feeding practice caused saver malnutrition in Somalia than other country.the study aimed To determine the infant and young child feeding practice in jidali mch erigavo sanag Somalia in 2023.

A sample size of 46 women visited mch was targeted with the first respondent being randomly selected and there after systemaic sampling was used until the required sample was reached.

Data were collected using researcher administered questionnaires and focus group discussion guide. Data were entered and analyzed using SPSS and summarized using descriptive statistics such as frequencies, means and percentages.
On the supersymmetric partition function in QCD-inspired random matrix models
Creators: name: Fyodorov, Yan V.
name: Akemann, Gernot
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show that the expression for the supersymmetric partition function of the chiral Unitary Ensemble conjectured recently by Splittorff and Verbaarschot [Phys. Rev. Lett. v. 90, 041601 (2003)] follows from the general expression derived recently by Fyodorov and Strahov [ J. Phys. A: Math.Gen.} {\bf 36}(2003) 3203] .
description: This is a modified published version, with some updated references. Pis'ma v ZhETF v.77 (2003), 513 [Eng. Transl.: JETP Lett. v.77, to appear]
Ascocotyle (Phagicola)
Creators: name: Scholz, T.
name: Aguirre-Macedo, M. L.
name: Salgado-Maldonado, G.
Publisher: name: Zenodo
Year: 2001
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Trematoda
Plagiorchiida
Heterophyidae
Ascocotyle

description: Ascocotyle (Phagicola) sp.
(®gure 8)
 Metacercaria
 Morphology. (Morphology based on one specimen from Cichlasoma urophthalmus.) Body pyriform, markedly tapering anteriorly, 1240 long and 544 wide. Small unicellular glands situated laterally at acetabular level. Preoral lobe welldeveloped. Oral sucker subterminal, 78 long and 102 wide, armed with single row of 20 spines. Posterior appendage long, narrow and curved. Prepharynx 171 long. Pharynx strongly muscular, large, 71 long and 76 wide. Oesophagus very short. Intestinal caeca long, narrow, reaching to testes. Ventral sucker slightly postequatorial, 84 long and 92 wide. Sucker ratio 1 5 0.98. Testes large, symmetrical, near posterior extremity, 146±172 long and 182±198 wide. Ventrogenital sac well-developed, containing large gonotyl 81 long and 154 wide, with 10 large, ®ngerlike retractile bodies. Ovary transversely oval, pretesticular. Vitelline follicles welldeveloped, lateral, between ovary and posterior extremity. Excretory bladder Y-shaped; excretory pore terminal.
 Second intermediate host. Cichlasoma urophthalmus (Cichlidae).
 Site of infection. Fins.
 Distribution. Campeche (El Vapor).
 References from Mexico. Vidal-MartõÂnez et al. (2000); present data.
 Specimens deposited. CHCM-30.
 Remarks. The metacercaria found in ®ns (?) closely resembles those of A. (L.) mcintoshi as described above in all but one morphological features. The only diOEerence is in spination of the oral sucker: A. (L.) mcintoshi possesses two complete rows of circumoral spines whereas the present metacercaria has only one circle, i.e. its oral sucker is armed with only 20 spines instead of 38±42 in A. (L.) mcintoshi. Both taxa also diOEer in the site of location (®ns versus mesentery) and the second intermediate host (Cichlidae versus Poecillidae). Therefore, the specimen studied is provisionally identi®ed as Ascocotyle (Phagicola) sp. until new material is available.
description: Published as part of Scholz, T., Aguirre-Macedo, M. L. & Salgado-Maldonado, G., 2001, Trematodes of the family Heterophyidae (Digenea) in Mexico: a review of species and new host and geographical records, pp. 1733-1772 in Journal of Natural History 35 (12) on pages 1755-1756, DOI: 10.1080/00222930152667087, http://zenodo.org/record/5275922
Fiber-coupled Antennas for Ultrafast Coherent Terahertz Spectroscopy in Low Temperatures and High Magnetic Fields
Creators: name: Crooker, S. A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: For the purposes of measuring the high-frequency complex conductivity of correlated-electron materials at low temperatures and high magnetic fields, a method is introduced for performing coherent time-domain terahertz spectroscopy directly in the cryogenic bore of existing dc and pulsed magnets. Miniature fiber-coupled THz emitters and receivers are constructed and are demonstrated to work down to 1.5 Kelvin and up to 17 Tesla, for eventual use in higher-field magnets. Maintaining the sub-micron alignment between fiber and antenna during thermal cycling, obtaining ultrafast (${<200}$~fs) optical gating pulses at the end of long optical fibers, and designing highly efficient devices that work well with low-power optical gating pulses constitute the major technical challenges of this project. Data on a YBCO superconducting thin film and a high mobility 2D electron gas is shown.
description: 8 pages, 9 figures
MOESM1 of Medicaid expansion and treatment for opioid use disorders in Oregon: an interrupted time-series analysis
Creators: name: McCarty, Dennis
name: Yifan Gu
name: McIlveen, John
name: Lind, Bonnie
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1. Additional tables.
Chemical evolution of elliptical galaxies with a variable IMF -- A publicly available code
Creators: name: Yan, Zhiqiang
name: Jerabkova, Tereza
name: Kroupa, Pavel
name: Vazdekis, Alejandro
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Growing evidence in recent years suggests a systematic variation of the stellar initial mass function (IMF), being top-heavy for starburst galaxies and possibly bottom-heavy for massive ellipticals. Galaxy chemical evolution simulations adopting an invariant canonical IMF face difficulty in simultaneously reproducing the metallicity and $α$-enhancement of the massive elliptical galaxies. Applying a variable IMF that changes with time is a promising solution, however, it is non-trivial to couple a variable IMF theory with the existing galaxy evolution codes. Here we present the first open source simulation code which recalculates the galaxy-wide IMF at each time step according to the Integrated-Galactic-IMF (IGIMF) theory where the galaxy-wide IMF depends on the galactic star formation rate and metallicity. The resulting galaxy-wide IMF and metal abundance evolve with time. With this pilot work, we explore the effect of the IGIMF theory on galaxy chemical evolution in comparison with an invariant IMF.
description: 16 pages, 18 figures, accepted for publication in A&A
D3.2 CO-CREATION WORKSHOP ON TOURISM PRODUCT(S) PROGRAMME
Creators: name: Gubern, Teresa
name: Lam, Yen E
name: Gonzalez, Matías M
Publisher: name: Zenodo
Year: 2025

description: This document outlines the Twinned by Stars project’s Co-Creation Workshops on Tourism Products Programme. It aims to foster innovation, sustainability, and digitalization in marine ecotourism across the outermost regions (ORs) by facilitating collaboration among businesses and local stakeholders in the Canary Islands, Madeira, Martinique, and the Azores.
Additional file 1: of The prevalence of obstructive sleep apnea in mild cognitive impairment: a systematic review
Creators: name: Talha Mubashir
name: Abrahamyan, Lusine
name: Niazi, Ayan
name: Deween Piyasena
name: Arif, Abdul
name: Wong, Jean
name: Osorio, Ricardo
name: Ryan, Clodagh
name: Chung, Frances
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: PRISMA Checklist. (PDF 398 kb)
Parameter Extension Simulation of Turbulent Flows
Creators: name: Jin, Yan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Parameter extension simulation (PES) as a mathematical method for simulating turbulent flows has been proposed in the study. It is defined as a calculation of the turbulent flow for the desired parameter values with the help of a reference solution. A typical PES calculation is composed of three consecutive steps: Set up the asymptotic relationship between the desired solution and the reference solution; Calculate the reference solution and the necessary asymptotic coefficients; Extend the reference solution to the desired parameter values. A controlled eddy simulation (CES) method has been developed to calculate the reference solution and the asymptotic coefficients. The CES method is a special type of large eddy simulation (LES) method in which a weight coefficient and an artificial force distribution are used to model part of the turbulent motions. The artificial force distribution is modeled based on the eddy viscosity assumption. The reference weight coefficient and the asymptotic coefficients can be determined through a weight coefficient convergence study. The proposed PES/CES method has been used to simulate four types of turbulent flows. They are decaying homogeneous and isotropic turbulence, smooth wall channel flows, rough wall channel flows, and compressor blade cascade flows. The numerical results show that the 0-order PES solution (or the reference CES solution) has a similar accuracy as a traditional LES solution, while its computational cost is much lower. A higher order PES method has an even higher model accuracy.
description: 26 pages, 17 figures
Grubeosyllis Verrill 1900
Creators: name: Nogueira, J. M. De M.
Publisher: name: Zenodo
Year: 2001
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Syllidae
Grubeosyllis

description: Genus Grubeosyllis Verrill, 1900
 Grubeosyllis Verrill, 1900: 628 ±629. Type species: Syllis clavata ClapareÁde, 1863: 41, pl. XIII, ®gures 28, 29; designated by San MartõÂn, 1991: 716. San MartõÂn, 1991: 716±721, ®gures 1±3.
 Diagnosis
Small and slender worms, body surface smooth. Prostomium semicircular, with two pairs of lensed eyes and, sometimes, two anterior ocular spots. Palps fused for, at least, most of their length. Three antennae, two pairs of tentacular cirri, and dorsal cirri long and slender, fusiform; dorsal cirri present in all chaetigers or missing in chaetiger 2. Ventral cirri digitiform. Compound falcigers, dorsal and ventral simple chaetae present. Acicula acuminate, with long, ®liform tip; in some species, tips distally rounded, but not hollow. Pharynx wide, armed with one dorsal tooth; proventriculum proportionally long and wide.
 San MartõÂn (1984a) split the former genus Brania Quatrefages, 1866, into Brania and Pseudobrania San MartõÂn, 1984a, later Grubeosyllis Verrill, 1900 (see San MartõÂn, 1991), and re-diagnosed the ®rst genus as animals with palps fused in the proximal third, tentacular and dorsal cirri short, and acicula distally rounded, with a hollow concavity inside. In spite of the general resemblance between these two genera, San MartõÂn (1991) considered Grubeosyllis more closely related to Parapionosyllis Fauvel, 1923 than to Brania, due to reproductive patterns.
This is the ®rst occurence of this genus in Brazilian waters.
description: Published as part of Nogueira, J. M. De M., 2001, Description of ® ve new species of Exogoninae Rioja, 1925 (Polychaeta: Syllidae) associated with the stony coral Mussismilia hispida (Verrill, 1868) in SaÄo Paulo State, Brazil, pp. 1773-1794 in Journal of Natural History 35 on page 1786
SNS Standard Power Supply Interface
Creators: name: Peng, S.
name: Lambiase, R.
name: Oerter, B.
name: Smith, J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences
subject: c.3; j7

description: The SNS has developed a standard power supply interface for the approximately 350 magnet power supplies in the SNS accumulator ring, Linac and transport lines. Power supply manufacturers are providing supplies compatible with the standard interface. The SNS standard consists of a VME based power supply controller module (PSC) and a power supply interface unit (PSI) that mounts on the power supply. Communication between the two is via a pair of multimode fibers. This PSI/PSC system supports one 16-bit analog reference, four 16-bit analog readbacks, fifteen digital commands and sixteen digital status bits in a single fiber-isolated module. The system can send commands to the supplies and read data from them synchronized to an external signal at up to a 10KHz rate. The PSC time stamps and stores this data in a circular buffer so historical data leading up to a fault event can be analyzed. The PSC contains a serial port so that local testing of hardware can be accomplished with a laptop. This paper concentrates on the software being provided to control the power supply. It includes the EPICS driver; software to test hardware and power supplies via the serial port and VME interface.
description: PDF File
Host galaxies of high-redshift extremely red and obscured quasars
Creators: name: Zakamska, Nadia L.
name: Sun, Ai-Lei
name: Strauss, Michael A.
name: Alexandroff, Rachael M.
name: Brandt, W. N.
name: Chiaberge, Marco
name: Greene, Jenny E.
name: Hamann, Fred
name: Liu, Guilin
name: Perrotta, Serena
name: Ross, Nicholas P.
name: Wylezalek, Dominika
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present Hubble Space Telescope 1.4-1.6 micron images of the hosts of ten extremely red quasars (ERQs) and six type 2 quasar candidates at z=2-3. ERQs, whose bolometric luminosities range between 10^47 and 10^48 erg/sec, show spectroscopic signs of powerful ionized winds, whereas type 2 quasar candidates are less luminous and show only mild outflows. After performing careful subtraction of the quasar light, we clearly detect almost all host galaxies. The median rest-frame B-band luminosity of the ERQ hosts in our sample is 10^11.2 L_Sun, or 4 L* at this redshift. Two of the ten hosts of ERQs are in ongoing mergers. The hosts of the type 2 quasar candidates are 0.6 dex less luminous, with 2/6 in likely ongoing mergers. Intriguingly, despite some signs of interaction and presence of low-mass companions, our objects do not show nearly as much major merger activity as do high-redshift radio-loud galaxies and quasars. In the absence of an overt connection to major ongoing gas-rich merger activity, our observations are consistent with a model in which the near-Eddington accretion and strong feedback of ERQs are associated with relatively late stages of mergers resulting in early-type remnants. These results are in some tension with theoretical expectations of galaxy formation models, in which rapid black hole growth occurs within a short time of a major merger. Type 2 quasar candidates are less luminous, so they may instead be powered by internal galactic processes.
description: Accepted to MNRAS; 23 pages, including 9 figures and 2 tables
Pure dephasing vs. Phonon mediated off-resonant coupling in a quantum-dot-cavity system
Creators: name: Echeverri-Arteaga, Santiago
name: Vinck-Posada, Herbert
name: Villas-Bôas, José M.
name: Gómez, Edgar A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Pure dephasing is widely used in the literature to explain experimental observations on quantum dots in cavities. In many cases, its use is not enough and extra terms need to be "fictitiously" added to accomplish with the observed data as it is the case of cavity pumping of an unknown source. Here we controvert the validity of the pure dephasing mechanism as a source of decoherence and present a theoretical study based on the phonon-mediated coupling that can explain the emission spectrum and photon auto- and cross-correlation results in recent experiments without the need of any artificial assumptions. We also demonstrated that the phonon-mediated coupling accounts for unexplained features recently reported in measurements of photon auto- and cross-correlation functions. Our work illuminates many of the debates in this field and opens up new possibilities for experimental verification and theoretical predictions.
Additional file 2: of The prevalence of obstructive sleep apnea in mild cognitive impairment: a systematic review
Creators: name: Talha Mubashir
name: Abrahamyan, Lusine
name: Niazi, Ayan
name: Deween Piyasena
name: Arif, Abdul
name: Wong, Jean
name: Osorio, Ricardo
name: Ryan, Clodagh
name: Chung, Frances
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Biotechnology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Medline (Ovid) Search Terms and Strategy. (DOCX 122 kb)
The Shape of Spectral Breaks in GRB Afterglows
Creators: name: Granot, Jonathan
name: Sari, Re'em
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Gamma-Ray Burst (GRB) afterglows are well described by synchrotron emission from relativistic blast waves expanding into an external medium. The blast wave is believed to amplify the magnetic field and accelerate the electrons into a power law distribution of energies promptly behind the shock. These electrons then cool both adiabatically and by emitting synchrotron and inverse Compton radiation. The resulting spectra is known to consist several power law segments, which smoothly join at certain break frequencies. Here, we give a complete description of all possible spectra under those assumptions, and find that there are 5 possible regimes, depending on the ordering of the break frequencies. The flux density is calculated by integrating over the contributions from all the shocked region, using the Blandford McKee solution. This allows us to calculate more accurate expressions for the value of these break frequencies, and describe the shape of the spectral breaks around them. This also provides the shape of breaks in the light curves caused by the passage of a break frequency through the observed band. These new, more exact, estimates are different from more simple calculations by up to a factor of about 70, and describe some new regimes which where previously ignored.
description: 9 pages, including one figure
Predicted Planck Extragalactic Point Source Catalogue
Creators: name: Vielva, P.
name: Martinez-Gonzalez, E.
name: Cayon, L.
name: Diego, J. M.
name: Sanz, J. L.
name: Toffolatti, L.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An estimation of the number and amplitude (in flux) of the extragalactic point sources that will be observed by the Planck Mission is presented in this paper. The study is based on the Mexican Hat wavelet formalism introduced by Cayon et al. 2000. Simulations at Planck observing frequencies are analysed, taking into account all the possible cosmological, Galactic and Extragalactic emissions together with noise. With the technique used in this work the Planck Mission will produce a catalogue of extragalactic point sources above fluxes: 1.03 Jy (857 GHz), 0.53 Jy (545 GHz), 0.28 Jy (353 GHz), 0.24 Jy (217 GHz), 0.32 Jy (143 GHz), 0.41 Jy (100 GHz HFI), 0.34 Jy (100 GHz LFI), 0.57 Jy (70 GHz), 0.54 Jy (44 GHz) and 0.54 Jy (30 GHz), which are only slightly model dependent (see text). Amplitudes of these sources are estimated with errors below 15%. Moreover, we also provide a complete catalogue (for the point sources simulation analysed) with errors in the estimation of the amplitude below 10%. In addition we discuss the possibility of identifying different point source populations in the Planck catalogue by estimating their spectral indices.
description: 13 pages, 2 figures, submitted to MNRAS
The Overview of the National Ignition Facility Distributed Computer Control System
Creators: name: Lagin, L. J.
name: Bettenhausen, R. C.
name: Carey, R. A.
name: Estes, C. M.
name: Fisher, J. M.
name: Krammen, J. E.
name: Reed, R. K.
name: VanArsdall, P. J.
name: Woodruff, J. P.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: J.2

description: The Integrated Computer Control System (ICCS) for the National Ignition Facility (NIF) is a layered architecture of 300 front-end processors (FEP) coordinated by supervisor subsystems including automatic beam alignment and wavefront control, laser and target diagnostics, pulse power, and shot control timed to 30 ps. FEP computers incorporate either VxWorks on PowerPC or Solaris on UltraSPARC processors that interface to over 45,000 control points attached to VME-bus or PCI-bus crates respectively. Typical devices are stepping motors, transient digitizers, calorimeters, and photodiodes. The front-end layer is divided into another segment comprised of an additional 14,000 control points for industrial controls including vacuum, argon, synthetic air, and safety interlocks implemented with Allen-Bradley programmable logic controllers (PLCs). The computer network is augmented asynchronous transfer mode (ATM) that delivers video streams from 500 sensor cameras monitoring the 192 laser beams to operator workstations. Software is based on an object-oriented framework using CORBA distribution that incorporates services for archiving, machine configuration, graphical user interface, monitoring, event logging, scripting, alert management, and access control. Software coding using a mixed language environment of Ada95 and Java is one-third complete at over 300 thousand source lines. Control system installation is currently under way for the first 8 beams, with project completion scheduled for 2008.
description: submitted to ICALEPCS 2001, TUAP001
การพัฒนาโปรแกรมการสร้างข้อสอบแบบหลายตัวเลือกโดยใช้วิธีการสร้างข้อสอบอัตโนมัติ
Creators: name: ปิยะทิพย์ ประดุจพรม
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2562
Subjects: การพัฒนาโปรแกรม
ข้อสอบแบบหลายตัวเลือก
การสร้างข้อสอบอัตโนมัติ
โมเดลของข้อสอบ

description: วารสารเทคโนโลยีภาคใต้, 12, 2, 74-87
Brachycarpus biunguiculatus
Creators: name: Li, Xinzheng
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Palaemonidae
Brachycarpus
Brachycarpus biunguiculatus

description: Brachycarpus biunguiculatus (Lucas, 1846)
 Palaemon biunguiculatus Lucas, 1846: 45, pl. 4, fig. 4.
 Brachycarpus biunguiculatus – Kemp 1925: 312-314. — Holthuis 1952a: 3-10, pl. 1, figs a-q. — Morrison 1954: 18. — Bruce 1996: 200, figs 1a-c, 28a, 30. — Poupin 1998: 11; 2003: 21. — Li & Bruce 2006: 618.
 MATERIAL EXAMINED. — Austral Is. Rapa I., Pointe Komire, BENTHAUS, malacologist fieldwork, stn 10, 27°34.8’S, 144°22.8’W, 16-18 m, stones with brown algae, 7.XI.2002, 2 ♀♀ (MNHN-Na 15430). — SW Pointe Gotenaonao, BENTHAUS, malacologist fieldwork, stn 27, 27°38.7’S, 144°19.2’W, 6 m, stones with algae, 14.XI.2002, 1 ♀ (MNHN-Na 15429).
DISTRIBUTION. — Type localities:Oran and Bone, Algeria. Previously known from the Red Sea; Zanzibar, Sri Lanka, Ryukyu Is, New Caledonia, Loyalty Is, Chesterfield Is, Caroline Is, French Polynesia (Tuamotu Is),Wake Is, Hawaii, and known extensively in the Eastern Pacific, eastern and western Atlantic and western Mediterranean region; 0-56 m depth. Not previously recorded from Austral Islands.
REMARKS
 Specimens from Rapa and one from Pointe Komire lack their second pereiopods, but both second pereiopods of another female of Point Komire are present. Their rostra reach approximately the end of the antennal scale, but do not far overreach it as in B. crosnieri Bruce, 1998.
description: Published as part of Li, Xinzheng, 2008, Report on some species of Palaemonidae (Crustacea, Decapoda) from French Polynesia, pp. 203-252 in Zoosystema 30 (1) on page 205, DOI: 10.5281/zenodo.5390379
Finite-Range Coulomb Gas Models II: Applications to Quantum Kicked Rotors and Banded Random Matrices
Creators: name: Kumar, Avanish
name: Pandey, Akhilesh
name: Puri, Sanjay
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In paper I of this two-stage exposition, we introduced finite-range Coulomb gas (FRCG) models, and developed an integral-equation framework for their study. We obtained exact analytical results for $d = 0,1,2 $, where d denotes the range of eigenvalue interaction. We found that the integral-equation framework was not analytically tractable for higher values of $d$. In this paper II, we develop a Monte Carlo (MC) technique to study FRCG models. Our MC simulations provide a solution of FRCG models for arbitrary $d$. We show that, as d increases, there is a transition from Poisson to Wigner-Dyson classical random matrix statistics. Thus FRCG models provide a novel route for transition from Poisson to Wigner-Dyson statistics. The analytical formulation obtained in paper I, and MC techniques developed in this paper II, are used to study banded random matrices (BRM) and quantum kicked rotors (QKR). We demonstrate that, for a BRM of bandwidth $b$ and a QKR of chaos parameter $α$, the appropriate FRCG model has range $d=b^2/N=α^2/N$, for $N \rightarrow \infty $. Here, N is the dimensionality of the matrix in BRM, and the evolution operator matrix in QKR.
Additional file 1 of Multi-step biosynthesis of the biodegradable polyester monomer 2-pyrone-4,6-dicarboxylic acid from glucose
Creators: name: Zhou, Dan
name: Wu, Fengli
name: Peng, Yanfeng
name: Qazi, Muneer Ahmed
name: Li, Ruosong
name: Wang, Yongzhong
name: Wang, Qinhong
Publisher: name: figshare
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Identification of PDC product by GC–MS. Figure S2. The effects of pH and biocatalyst on whole-cell bioconversion of PCA into PDC. Figure S3. Preparation of whole-cell biocatalysts by fed-batch fermentation. Table S1. The strains and plasmids used in this study. Table S2. The GenBank accession numbers of the protocatechuate 4,5-dioxygenases and the CHMS dehydrogenases used in this study. Table S3. Time course of PDC production from PCA catalyzed by different whole-cell biocatalysts.
Doping-induced superconductivity in the van der Waals superatomic crystal Re$_6$Se$_8$Cl$_2$
Creators: name: Telford, Evan J.
name: Russell, Jake C.
name: Swann, Joshua R.
name: Fowler, Brandon
name: Wang, Xiaoman
name: Lee, Kihong
name: Zangiabadi, Amirali
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Nuckolls, Colin
name: Batail, Patrick
name: Zhu, Xiaoyang
name: Malen, Jonathan A.
name: Dean, Cory R.
name: Roy, Xavier
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superatomic crystals are composed of discrete modular clusters that emulate the role of atoms in traditional atomic solids$^{1-4}$. Owing to their unique hierarchical structures, these materials are promising candidates to host exotic phenomena, such as superconductivity and magnetism that can be revealed through doping$^{5-10}$. Low-dimensional superatomic crystals hold great promise as electronic components$^{11,12}$, enabling these properties to be applied to nanocircuits, but the impact of doping in such compounds remains unexplored. Here we report the electrical transport properties of Re$_6$Se$_8$Cl$_2$, a two-dimensional superatomic semiconductor$^{13,14}$. Using an in situ current annealing technique, we find that this compound can be n-doped through Cl dissociation, drastically altering the transport behaviour from semiconducting to metallic and giving rise to superconductivity below $\sim$ 9 K. This work is the first example of superconductivity in a van der Waals (vdW) superatomic crystal; more broadly, it establishes a new chemical strategy to manipulate the electronic properties of vdW materials with labile ligands.
Conchodytes meleagrinae Peters 1852
Creators: name: Li, Xinzheng
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Palaemonidae
Conchodytes
Conchodytes meleagrinae

description: Conchodytes meleagrinae Peters, 1852
 Conchodytes meleagrinae Peters, 1852: 594. — Nobili 1907: 359. — Seurat 1934: 60. — Holthuis 1953: 59. — Bruce 1991a: 262, fig. 25a-d. — Chace & Bruce 1993: 74. — Poupin 1998: 13. — Li 2000: 25, fig. 26. — Li & Bruce 2006: 628.
 MATERIAL EXAMINED. — Tuamotu Is. Mururoa, 25.XI.1965, coll. Y. Plessis, no. 651125008, 1 ♂ (MNHN-Na 15438).
 HOST. — Pinctata margaritifera (Linnaeus, 1758) (Mollusca, Bivalvia, Pterioida, Pteriidae). Previously reported associating with this host by Seurat (1934) fromTuamotu Islands.
DISTRIBUTION. — Type locality: Mozambique (Ibo, Cabo Delgado), southeast coast of Africa. Widespread in the Indo-Pacific, from the Red Sea eastward to Hawaii and French Polynesia (Gambier, Tuamotu Is); 0-30 m depth with certainty. Previously recorded fromTuamotu Islands by Seurat (1934) and Holthuis (1953).
description: Published as part of Li, Xinzheng, 2008, Report on some species of Palaemonidae (Crustacea, Decapoda) from French Polynesia, pp. 203-252 in Zoosystema 30 (1) on page 205, DOI: 10.5281/zenodo.5390379
ผลของการจัดการเรียนรู้โดยใช้เทคนิคเค ดับบลิว แอล พลัส (KWL Plus) ร่วมกับกิจกรรมการเรียนแบบคู่คิด เพื่อพัฒนาทักษะการอ่านเชิงวิเคราะห์ และการสรุปความเข้าใจในการอ่าน
Creators: name: เบญจวรรณ ขุนฤทธิ์
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2562
Subjects: เทคนิค KWL PLUS
การเรียนแบบคู่คิด
การอ่านเชิงวิเคราะห์

description: วารสารเทคโนโลยีภาคใต้, 12, 2, 88-97
K2-146: Discovery of Planet c, Precise Masses from Transit Timing, and Observed Precession
Creators: name: Hamann, Aaron
name: Montet, Benjamin T.
name: Fabrycky, Daniel C.
name: Agol, Eric
name: Kruse, Ethan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: K2-146 is a mid-M dwarf ($M_\star = 0.331 \pm 0.009 M_\odot$; $R_\star = 0.330 \pm 0.010 R_\odot$), observed in Campaigns 5, 16, and 18 of the K2 mission. In Campaign 5 data, a single planet was discovered with an orbital period of $2.6$~days and large transit timing variations due to an unknown perturber. Here we analyze data from Campaigns 16 and 18, detecting the transits of a second planet, c, with an orbital period of $4.0$~days, librating in a 3:2 resonance with planet b. Large, anti-correlated timing variations of both planets exist due to their resonant perturbations. The planets have a mutual inclination of $2.40^\circ\pm0.25^\circ$, which torqued planet c more closely into our line-of-sight. Planet c was grazing in Campaign 5 and thus missed in previous searches; in Campaigns 16 and 18 it is fully transiting, and its transit depth is three times larger. We improve the stellar properties using data from Gaia DR2, and using dynamical fits find that both planets are sub-Neptunes: their masses are $5.77\pm0.18$ and $7.50\pm0.23 M_{\oplus}$ and their radii are $2.04\pm0.06$ and $2.19\pm0.07$ R$_\oplus$, respectively. These mass constraints set the precision record for small exoplanets (a few gas giants have comparable relative precision). These planets lie in the photoevaporation valley when viewed in Radius-Period space, but due to the low-luminosity M-dwarf host star, they lie among the atmosphere-bearing planets when viewed in Radius-Irradiation space. This, along with their densities being 60%-80% that of Earth, suggests that they may both have retained a substantial gaseous envelope.
description: 24 pages, 19 figures, accepted for publication in AJ
Nested and Single Bars in Seyfert and Non-Seyfert Galaxies
Creators: name: Laine, Seppo
name: Shlosman, Isaac
name: Knapen, Johan H.
name: Peletier, Reynier F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze the observed properties of nested and single stellar bar systems in disk galaxies. The 112 galaxies in our sample comprise the largest matched Seyfert vs. non-Seyfert sample of nearby galaxies with complete near-infrared or optical imaging sensitive to lengthscales ranging from tens of pc to tens of kpc. We find that a significant fraction of the sample galaxies, 17% +/- 4%, has more than one bar, and that 28% +/- 5% of barred galaxies have nested bars. The bar fractions appear to be stable according to reasonable changes in our adopted bar criteria. For these nested bars, we detect a clear division in length between the large-scale (primary) bars and small-scale (secondary) bars, both in absolute and normalized (to the size of the galaxy) length. We argue that this bimodal distribution can be understood within the framework of the inner Lindblad resonances (ILRs), which are located where the gravitational potential of the innermost galaxy switches effectively from 3D to 2D. While primary bars are found to correlate with the host galaxy sizes, no such correlation is observed for the secondary bars. Moreover, we find that secondary bars differ morphologically from single bars. Overall, our matched Seyfert and non-Seyfert samples show a statistically significant excess of bars among the Seyfert galaxies at practically all lengthscales. We confirm our previous result that Seyfert galaxies always show a preponderance of "thick" bars compared to the bars in non-Seyfert galaxies. Finally, no correlation is observed between the presence of a bar and that of companion galaxies, even relatively bright ones.
description: 33 pages, including 23 postscript figures, fixed a problem with deprojected position angle profiles and the resulting bar classifications and statistics numbers and figures and tables, to appear in ApJ
Coralliocaris viridis Bruce 1974
Creators: name: Li, Xinzheng
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Palaemonidae
Coralliocaris
Coralliocaris viridis

description: Coralliocaris viridis Bruce, 1974
 Coralliocarisviridis Bruce,1974a:222-224,fig.1. — Odinetz 1983: 207. — Chace & Bruce 1993: 78. — Poupin 1998: 14. — Li 2000: 38, fig. 38. — Li & Bruce 2006: 230.
 MATERIAL EXAMINED. — Tuamotu Is. IV.1996, coll. J. Poupin, 1 ovig. ♀ (MNHN-Na 15944).
 HOST. — Acropora sp. (Cnidaria, Anthozoa, Scleractinia, Acroporidae). Previously reported associating with species of Acropora Oken, 1815 by Poupin (1998) from Tuamotu Islands.
DISTRIBUTION. — Type locality: Mombassa Island, Kenya. Previously also known from Mozambique, Seychelles, Maldives, Sri Lanka, Vietnam, Ryukyu Is, Indonesia, Papua New Guinea, Australia (Northern Territory and Queensland) and French Polynesia (Society Is, Tuamotu Is); 1-14 m depth with certainty. Previously recorded from Tuamotu Islands by Poupin (1998).
description: Published as part of Li, Xinzheng, 2008, Report on some species of Palaemonidae (Crustacea, Decapoda) from French Polynesia, pp. 203-252 in Zoosystema 30 (1) on page 206, DOI: 10.5281/zenodo.5390379
การพัฒนาเกมคอมพิวเตอร์เพื่อการเรียนรู้เรื่องสมุนไพร: ศูนย์เรียนรู้พืชสมุนไพร ชุมชนบึงขุนทะเล จังหวัดสุราษฎร์ธานี
Creators: name: สุภาภรณ์ ชัยอารยะเลิศ
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2562
Subjects: การออกแบบเกม
ทฤษฎีเกมการเรียนรู้
สมุนไพรไทย
สื่อการเรียน

description: วารสารเทคโนโลยีภาคใต้, 12, 2, 98-106
ภาวะผู้นำการเปลี่ยนแปลงของผู้บริหารเทศบาลตำบลในจังหวัดนครศรีธรรมราช
Creators: name: อัฉรพันธ์ คงจันทร์
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2562
Subjects: ภาวะผู้นำการเปลี่ยนแปลง
ผู้บริหาร
เทศบาลตำบล

description: วารสารเทคโนโลยีภาคใต้, 12, 2, 107-114
X-Ray Probing of the Central Regions of Clusters of Galaxies
Creators: name: Makishima, Kazuo
name: Ezawa, Hajime
name: Fukazawa, Yasushi
name: Honda, Hirohiko
name: Ikebe, Yasushi
name: Kamae, Tuneyoshi
name: Kikuchi, Ken'ichi
name: Matsushita, Kyoko
name: Nakazawa, Kazuhiro
name: Ohashi, Takaya
name: Takahashi, Tadayuki
name: Tamura, Takayuki
name: Xu, Haiguang
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Results of ASCA X-ray study of central regions of medium-richness clusters of galaxies are summarized, emphasizing differences between cD and non-cD clusters. The intra-cluster medium (ICM) is likely to consist of two (hot and cool) phases within $\sim 100$ kpc of a cD galaxy, where the ICM metallicity is also enhanced. In contrast, the ICM in non-cD clusters appears to be isothermal with little metallicity gradient right to the center. The gravitational potential exhibits a hierarchical nesting around cD galaxies, while a total mass-density profile with a central cusp is indicated for a non-cD cluster Abell~1060. The iron-mass-to-light ratio of the ICM decreases toward the center in both types of clusters, although it is radially constant in peripheral regions. The silicon-to-iron abundance ratio in the ICM increases with the cluster richness, but remains close to the solar ratio around cD galaxies. These overall results are interpreted without appealing to the popular cooling-flow hypothesis. Instead, an emphasis is put on the halo-in-halo structure formed around cD galaxies.
description: 22 pages with 9 figures, Latex, accepted to PASJ
การมีส่วนร่วมในการพัฒนาท้องถิ่นของกำนันและผู้ใหญ่บ้านในจังหวัดนครศรีธรรมราช
Creators: name: สุภาณี วงศ์แก้ว
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2562
Subjects: การมีส่วนร่วม
การพัฒนาท้องถิ่น
ขั้นตอนของการมีส่วนร่วม

description: วารสารเทคโนโลยีภาคใต้, 12, 2, 115-121
Duality relation for frustrated spin models
Creators: name: Lee, D. -H.
name: Wu, F. Y.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider discrete spin models on arbitrary planar graphs and lattices with frustrated interactions. We first analyze the Ising model with frustrated plaquettes. We use an algebraic approach to derive the result that an Ising model with some of its plaquettes frustrated has a dual which is an Ising model with an external field $iπ/2$ applied to the dual sites centered at frustrated plaquettes. In the case that all plaquettes are frustrated, this leads to the known result that the dual model has a uniform field $iπ/2$ whose partition function can be evaluated in the thermodynamic limit for regular lattices. The analysis is extended to a Potts spin glass with analogous results obtained.
description: Several relevant references are added. Comments on their relation to this work are also added