cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Survey of Asteraceae Family from Taif Saudi Arabia Peninsular
Creators: name: Majrashi, Ali
Publisher: name: figshare
Year: 2020
Subjects: subject: 70302 Agronomy
subject: FOS: Agriculture, forestry and fisheries

description: Major constrain of crop production are weeds but they are also consider as important aspect of agricultural system in the world. Weeds are wild plants grow in an environment without the contribution of any human activities that that have positive or negative impact to the environment. The study aims at carrying a survey on weeds of family Asteraceae grown in cultivated environment with purpose of recording and identification. The study was conducted in the Taif region of Saudi Arabian kingdom in a mountain with an elevation level of (Area A = Al sail 1700 m, Area B = Al Wahat and Al Watit 1500, C = Leeih 1500, D = AL Gaim and Saisad 1500, F = E = Al Shafa 2200 m, F = AL Hada = 2000 m). The study was conducted between December 2018 to August 2019. The study was carried out based on enviromental survey. Diverse number of weeds were identified and collected from the examined study area. Results revealed aggressive weeds species. Agratum conyzoides, Aster subalatus, Calendula tripterocarpa, Centure sp, Cirsium arvense, Conyza dioscoridis, Coreopsis drummondii, Echinops spinosissimus, Eclipla alba, Eclipta prostrate, Emilia sonchifolia, Flavaria trnervia, lactuca sativa, launaca capitate, Pennsylvania state,Prickiy lettace, Pulicaria crispa, Saussurea japonica, Senecio scundens, Sonchus asper, Sonchus oleraceus and Verbesina encelioides. Similarly, sixteen agricultural crops were documented from the study area; Allium cepa, Brassica oleracea var. botrytis, Anethum graveolens, Raphanus sativus, Allium ampeloprasum var, Solanum melongena, Medicago sativa, Lactuca sativa, Punica granatum, Solanum lycopersicum, Vitis spp, Brassica oleracea var. capitate, Cucurbita pepo, Phoenix dactylifera, Rosa damascene and Mentha. Results of the survey obtained from the study would be useful in creating management control and proposing research toward improved new weed control measures. Also has provided insight on purposeful weeds control in Taif Area. The study recommends further studies on order types of weeds in the area.
LA LUTTE CONTRE L'INCIVISME FISCAL EN COTE D'IVOIRE
Creators: name: Ehorodou Joris Benjamin Bekoin
Publisher: name: Zenodo
Year: 2022
Subjects: Tax Compliance; tax revenues; taxes; public resource management; international tax treaty.

description: The African countries in general and the Ivory Coast in particular have crying needs in development; which require capital to finance them. If the economic operators refuse to submit to their tax obligations, one finds oneself with a State which has important needs, but which is unable to finance the realization of basic social infrastructures (roads, schools, hospitals...). Fiscal civic-mindedness therefore appears to be a major issue insofar as it promotes the mobilization of publics revenues. An increase in the revenues of these countries would provide more means to invest in the economy, more independence from foreign governments and financial institutions and a better life for their populations. Thus, the study of tax compliance in Côte d'Ivoire has a single objective: to improve the quality of life of the population through efficient tax collection.

description: Des malins voulant entortiller le Christ l'interrogèrent d'une manière habile : « Maître, nous savons que tu es vrai, et que tu ne t'inquiètes de personne ; car tu ne regardes pas à l'apparence des hommes, et tu enseignes la voie de Dieu selon la vérité. Est-il permis, ou non, de payer le tribut à César ? Devons-nous payer ou ne pas payer ? Jésus, connaissant leur hypocrisie, leur répondit : Pourquoi me tentez-vous ? Apportez-moi un denier pour que je le vois. Ils en apportèrent un ; et Jésus leur demandait : De qui sont cette effigie et cette inscription ? De César, lui répondirent-ils. Alors il leur dit : Rendez à César ce qui est à César, et à Dieu ce qui est à Dieu. » Marc 12 : 13 – 17 Ce très célèbre échange révèle sans énigme deux informations : La monnaie est du domaine de l'Etat (1) ; les citoyens doivent (utiliser la monnaie pour) payer le coût de l'Etat, c'est-à-dire l'Impôt (2)...
Ausblick: Von ORCID DE zum PID Network
Creators: name: Pampel, Heinz
Publisher: name: Zenodo
Year: 2022
Subjects: ORCID
ROR
Network
PID
Open Science
Persistent Identifier
Autorenidentifikation
Netzwerk
Vernetzung
Verknüpfung

description: Was ist die weitere Vision für persistente Identifier (DE) in Deutschland? Mit dieser Frage schloss der 6. ORCID DE Workshop zu ORCID in erweiterten Kontexten am 04. Mai 2022.
Granular Gas: Vibrating Walls, Two-Peak Distribution and Hydrodynamics
Creators: name: Chen, Yanpei
name: Hou, Meiying
name: Jiang, Yimin
name: Liu, Mario
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Vibrating walls, used to maintain the temperature in a granular gas, modify the system strongly. Most conspicuously, the usual one-peak velocity distribution splits into two, asymmetrically positioned. A surgical repair of the usual hydrodynamic description is presented that provides an account for, and an understanding of, the situation.
description: 3 fig
Threshold resonance and controlled filtering in quantum star graphs
Creators: name: Turek, Ondřej
name: Cheon, Taksu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Q35, 81U20

description: We design two simple quantum devices applicable as an adjustable quantum spectral filter and as a flux controller. Their function is based upon the threshold resonance in a Fülöp-Tsutsui type star graph with an external potential added on one of the lines. Adjustment of the potential strength directly controls the quantum flow from the input to the output line. This is the first example to date in which the quantum flow control is achieved by addition of an external field not on the channel itself, but on other lines connected to the channel at a vertex.
description: ReVTeX format, 4 pages, 6 figures
Economies of Size in U.S. Field Crop Farming
Creators: name: Miller, Thomas A.
name: Rodewald, Gordon E.
name: McElroy, Robert G.
name: Miller, Thomas A.
name: Rodewald, Gordon E.
name: McElroy, Robert G.
Publisher: name: Unknown
Year: 1981
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Production Economics
subject: Research Methods/ Statistical Methods
subject: Economies of size
subject: cost efficiency
subject: wheat
subject: feed grain
subject: cotton
subject: farm structure
subject: farm growth
subject: policy

description: Economies of size refers to the relative cost efficiency associated with different firm sizes. As farm size increases in most field crop regions, per-unit costs decline at first and then are relatively constant. Medium-size commercial farms ($41,000 to $76,000 gross income) achieve most available technical cost efficiencies. Society would likely benefit little in terms of lower real food costs from further increase in the size of these farms. Apparently economies of size are not a major factor in farm enlargement; farmers expand their farms to increase income rather than to reduce per-unit costs.
ZUSAMMENFASSUNG Temporal-ität im Bild: Der Hurrikan (el temporal) als Chronotop karibischer Kunstgeschichte und Bildpolitik
Creators: name: Hartman, Joseph R.
Publisher: name: Miradas - Zeitschrift für Kunst- und Kulturgeschichte der Amérikas und der iberischen Halbinsel
Year: 2023

description: Hurrikane enthüllen Chronotope, welche die verknüpften Geschichten von Transkulturation, Kolonialismus und Dekolonialität in der Kunst in-/formieren. Dieser Beitrag zeichnet die kulturpolitische Ikonographie nach, die mit dem Auftreten und der Zerstörungskraft von Wirbelstürmen in der karibischen Kunst über Generationen hinweg gewachsen ist. Indem er die longue durée künstlerischer Darstellungen von Hurrikanen mit in den Blick nimmt, zielt er darauf ab, die Möglichkeiten und Grenzen von Kunst und Kunstgeschichte als Mittel der Reaktion auf Klimakatastrophen, einhergehender Reparatur und Prävention im Kontext von Kolonialgeschichte aufzuzeigen. Staatlich geförderte Kunst, die nach meteorologischen Katastrophen produziert wurde, hat historisch gesehen die koloniale „Matrix der Macht“ gestärkt, während moderne und zeitgenössische Künstler und Künstlerinnen die Notwendigkeit dekolonialer Lösungen für anhaltende Ökotraumata andeuten. Die Prozesse und Visualisierungen der Dekolonialisierung lassen sich jedoch, wie der Hurrikan selbst, nicht erst in der Gegenwart beobachten oder nur für die Zukunft vorhersagen. Es finden sich dafür auch historisch viele Hinweise in der visuellen Kultur, Kunst und dem Gesang karibischer Völker. Hurrikane über verschiedene Zeiträumen der karibischen Kunstgeschichte hinweg aufzuspüren, hilft uns, dekoloniale Narrative neu zu denken.
description: Miradas - Zeitschrift für Kunst- und Kulturgeschichte der Amérikas und der iberischen Halbinsel, Bd. 7 (2023): Miradas
Effects of porous substrates on the structure of turbulent boundary layers
Creators: name: Jaiswal, Prateek
name: Ganapathisubramani, Bharathram
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Three different porous substrates (with different pore sizes, s, and permeabilities, K) are used to examine their effect on the structure of boundary layer flow over them. The flow is characterised with single-point hot-wire measurements as well as planar Particle Image Velocimetry. In order to elucidate differences in shallow and deep flows past porous substrate, foams with two different thickness (h) are used (for all three substrates). A wide range of Friction Reynolds number (2000< Retau < 15000) and Permeability based Reynolds number (11) and dense (relative to viscous scales) foam at the thick substrate limit (h/s>10), which leads to the breakdown of outer-layer similarity. As porosity is increased, a thin substrate limit is reached (h/s), and the foam becomes sparse relative to viscous scales (s+ > 100). For such foams, the flow conforms to outer-layer similarity and is more akin to flow over rough surfaces. Such substrates are unable to attenuate velocity disturbances and the dependence of substrate thickness (h/s) on spectral energy content of turbulent fluctuations ceases to exist. The present study shows that transition from thick to thin substrate flow behavior depends not only on thickness-to-pore ratio (h/s) but also on substrate density relative to viscous scales of the flow.
description: 29 pages, 14 figures
RESUMEN Visiones Temporales: Huracanes como Cronotopos en Arte y Políticas Culturales del Caribe
Creators: name: Hartman, Joseph R.
Publisher: name: Miradas - Revista de Historia del Arte y la Cultura de las Américas y la Península Ibérica
Year: 2023

description: Los huracanes revelan cronotopos en las historias del arte caribeño que participan en historias interrelacionadas de transculturación, colonialismo y decolonialidad. Este ensayo rastrea la estética, destrucción y creación de huracanes en el arte caribeño a través de generaciones. Al tomar una visión de larga duración de los huracanes dentro de las culturas visuales del Caribe, este ensayo tiene como objetivo exponer los límites y las posibilidades del arte y la historia del arte como un medio para mitigar y responder a los desastres climáticos junto con los legados coloniales. Las artes patrocinadas por el estado producidas después de los desastres meteorológicos históricamente han reforzado la matriz colonial de poder, mientras que los artistas modernos y contemporáneos sugieren la necesidad de soluciones decoloniales para los eco-traumas en curso. Sin embargo, los procesos y la visualización de la descolonización, como el propio huracán, no es algo siempre, ya en el presente o en el futuro. También es histórico, propuesto nuevamente por los pueblos caribeños en el arte y el canto. Registrar el huracán en los diversos tiempos-espacios de la historia del arte caribeño nos ayuda a repensar las narrativas decoloniales.
description: Miradas - Revista de Historia del Arte y la Cultura de las Américas y la Península Ibérica, Bd. 7 (2023): Miradas
Supplementary Figures from First insights into the shortfin mako shark (Isurus oxyrinchus) fine-scale swimming behaviour
Creators: name: Saraiva, Bruno M.
name: Macena, Bruno C. L.
name: Solleliet-Ferreira, Silvio
name: Afonso, Pedro
name: Fontes, Jorge
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: PDF file containing supplementary figures
Anomalous magnetotransport in the heavy-fermion superconductor Ce2PdIn8
Creators: name: Gnida, Daniel
name: Matusiak, Marcin
name: Kaczorowski, Dariusz
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The normal state behavior in the heavy-fermion superconductor Ce2PdIn8 has been probed by means of Hall coefficient (RH) and transverse magnetoresistivity (MR) measurements. The results indicate the predominance of contributions from antiferromagnetic spin fluctuations at low temperatures. Anomalous non-Fermi-liquid-like features, observed below 8 K in both RH(T) and MR(T), are related to underlying quantum critical point, evidenced before in the specific heat and the electrical resistivity data. The magnetotransport in Ce2PdIn8 is shown to exhibit specific types of scaling that may appear universal for similar systems at the verge of magnetic instability.
description: Accepted as a Rapid Communication in Physical Review B
High-resolution wide-band Fast Fourier Transform spectrometers
Creators: name: Klein, Bernd
name: Hochgürtel, Stefan
name: Krämer, Ingo
name: Bell, Andreas
name: Meyer, Klaus
name: Güsten, Rolf
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We describe the performance of our latest generations of sensitive wide-band high-resolution digital Fast Fourier Transform Spectrometer (FFTS). Their design, optimized for a wide range of radio astronomical applications, is presented. Developed for operation with the GREAT far infrared heterodyne spectrometer on-board SOFIA, the eXtended bandwidth FFTS (XFFTS) offers a high instantaneous bandwidth of 2.5 GHz with 88.5 kHz spectral resolution and has been in routine operation during SOFIA's Basic Science since July 2011. We discuss the advanced field programmable gate array (FPGA) signal processing pipeline, with an optimized multi-tap polyphase filter bank algorithm that provides a nearly loss-less time-to-frequency data conversion with significantly reduced frequency scallop and fast sidelobe fall-off. Our digital spectrometers have been proven to be extremely reliable and robust, even under the harsh environmental conditions of an airborne observatory, with Allan-variance stability times of several 1000 seconds. An enhancement of the present 2.5 GHz XFFTS will duplicate the number of spectral channels (64k), offering spectroscopy with even better resolution during Cycle 1 observations.
description: Accepted for publication in A&A (SOFIA/GREAT special issue)
Temporal Visions: Hurricanes as Chronotopes in Caribbean Art History
Creators: name: Hartman, Joseph R.
Publisher: name: Miradas - Journal for the Arts and Culture of the Américas and the Iberian Peninsula
Year: 2023

description: Hurricanes reveal chronotopes in Caribbean art histories that participate in interrelated histories of transculturation, colonialism, and decoloniality. This essay traces the aesthesis, destruction, and creation of hurricanes in Caribbean art across generations. By taking a longue durée view of hurricanes within Caribbean visual cultures, this essay aims to expose the limits and possibilities of art and art history as a means of mitigating and responding to climate disasters alongside colonial legacies. State-sponsored arts produced after meteorological disasters have historically reenforced the colonial matrix of power, while modern and contemporary artists suggest the need for decolonial solutions to ongoing eco-traumas. The processes and visualization of decolonization, like the hurricane itself, however, is not something always-already in the present or future. It is also historical, proposed over again by Caribbean-born peoples in art and song. Recording the hurricane in the diverse time-spaces of Caribbean art history helps us to re-envision decolonial narratives.
description: Miradas - Journal for the Arts and Culture of the Américas and the Iberian Peninsula, Bd. 7 (2023): Miradas
On the Performance of Space Shift Keying (SSK) Modulation with Imperfect Channel Knowledge
Creators: name: Di Renzo, Marco
name: De Leonardis, Dario
name: Graziosi, Fabio
name: Haas, Harald
Publisher: name: arXiv
Year: 2011
Subjects: subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: In this paper, we study the sensitivity and robustness of Space Shift Keying (SSK) modulation to imperfect channel knowledge at the receiver. Unlike the common widespread belief, we show that SSK modulation is more robust to imperfect channel knowledge than other state-of-the-art transmission technologies, and only few training pilots are needed to get reliable enough channel estimates for data detection. More precisely, we focus our attention on the so-called Time-Orthogonal-Signal-Design (TOSD-) SSK modulation scheme, which is an improved version of SSK modulation offering transmit-diversity gains, and provide the following contributions: i) we develop a closed-form analytical framework to compute the Average Bit Error Probability (ABEP) of a mismatched detector for TOSD-SSK modulation, which can be used for arbitrary transmit-antenna, receive-antenna, channel fading, and training pilots; ii) we perform a comparative study of the performance of TOSD-SSK modulation and the Alamouti code under the same imperfect channel knowledge, and show that TOSD-SSK modulation is more robust to channel estimation errors; iii) we point out that only few pilot pulses are required to get performance very close to the perfect channel knowledge lower-bound; and iv) we verify that transmit- and receive-diversity gains of TOSD-SSK modulation are preserved even for a mismatched receiver.
description: IEEE GLOBECOM 2011 (to appear)
Quantum tracking control of the orientation of symmetric top molecules
Creators: name: Magann, Alicia B.
name: Ho, Tak-San
name: Arenz, Christian
name: Rabitz, Herschel A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The goal of quantum tracking control is to identify shaped fields to steer observable expectation values along designated time-dependent tracks. The fields are determined via an iteration-free procedure, which is based on inverting the underlying dynamical equations governing the controlled observables. In this article, we generalize the ideas in Phys. Rev. A 98, 043429 (2018) to the task of orienting symmetric top molecules in 3D. To this end, we derive equations for the control fields capable of directly tracking the expected value of the 3D dipole orientation vector along a desired path in time. We show this framework can be utilized for tracking the orientation of linear molecules as well, and present numerical illustrations of these principles for symmetric top tracking control problems.
Mining haul truck pose estimation and load profiling using stereo vision
Creators: name: Borthwick, James Robert
Publisher: name: University of British Columbia
Year: 2010

description: Earthmoving at surface mines centers around very large excavators (mining shovels) that remove material from the earth and place it into haul trucks. During this loading process, the truck may be inadvertently loaded in a manner that injures the truck driver, or that results in an asymmetrically loaded or overloaded truck. This thesis presents two systems which aim to assist with haul truck loading: 1) a stereo-vision based system that determines a haul truck's pose relative to the shovel housing as part of an operator loading assistance system, and 2) a system that can determine a haul truck's load volume and distribution as the truck is being loaded. The haul truck pose estimation system is significant in that it is the first six-degrees of freedom truck pose estimation system that is sufficiently fast and accurate to be applicable in an industrial mine setting. Likewise, it is the first time that a system capable of determining a haul truck's volume as it is being loaded has been described. To achieve this, a fast, resolution independent nearest neighbour search is presented and used within Iterative Closest Point (ICP) for point cloud registration. It also shown, for the first time, to the best of our knowledge, the possibility of using the Perspective-n-Point (PnP) pose estimation technique to estimate the pose a range-sensor derived point cloud model, and to use the same technique to verify the pose given by ICP. Camera errors, registration errors, pose estimation errors, volume estimation errors and computation times are all reported.
The Effects of Amine Moieties on Adhesion and Cohesion of Mussel-Inspired Polymers
Creators: name: Garcia Rodriguez, Jennifer Marie
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 401609
subject: Polymers and plastics
classificationCode: 340302
subject: Macromolecular materials

description: Water molecules present an obstacle between most synthetic adhesives and surfaces, limiting molecular contact between the glue and substrates. Water can also hydrolyze or swell bulk adhesives, weakening cohesive strength. Nature has solved these challenges for millennia. Marine mussels’ ability to adhere well to wet surfaces stems from an uncommon amino acid, 3,4-dihydroxyphenylalanine (Dopa). The amino acid Dopa contains a catechol moiety that contributes to adhesion and cohesion through hydrogen bonding, metal coordination, and oxidative cross-linking. Hence, biomimetic systems often incorporate catechol groups to provide strong adhesion in both dry and wet environments. In addition to Dopa, mussel adhesive proteins are rich in cationic amino acids lysine and arginine. Previous studies have suggested that cations could displace surface-bound ions, enhancing surface adhesion. However, adhesion performance varied between systems, with no agreement on whether cations are advantageous or disadvantageous. A clear picture of how cations influence underwater adhesion has yet to emerge; therefore, this thesis aims to systematically study these effects.In Chapter 2, the synthesis of catechol-containing biomimetic polymers with varying amounts of quaternary ammoniums is presented. Quaternary ammoniums, unlike protonated primary amines, contain non-reactive cations and were used to isolate effects from only charges on adhesion. In Chapter 3, differences between reactive primary amines and quaternary ammoniums were investigated. Structure-function studies have shown how cations influence bulk cohesion versus surface adhesion in dry, under deionized water, and under salt water. The roles of cations in adhesion were complex, with both cohesive and surface bonding relevant in different ways, sometimes even working in opposite directions.Furthermore, a styrene-based catechol-containing polymer with excellent underwater adhesion performance is ready to enter the market, but several barriers hinder its industrial implementation. In Chapter 4, new synthetic strategies were developed to scale up and reduce the cost of producing p[vinylcatechol-co-styrene], which are essential for commercialization. This was achieved by selecting cheaper starting materials, switching from anionic to suspension polymerization, and optimizing deprotection reaction conditions. This change also improved adhesion in both dry and underwater conditions. This work is presented as part of our effort to advance the design of adhesives that function in challenging environments.
Multistep magnetization switching in orthogonally twisted ferromagnetic monolayers
Creators: name: Boix-Constant, Carla
name: Jenkins, Sarah
name: Rama-Eiroa, Ricardo
name: Santos, Elton J. G.
name: Mañas-Valero, Samuel
name: Coronado, Eugenio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The advent of twist-engineering in two-dimensional (2D) crystals enables the design of van der Waals (vdW) heterostructures exhibiting emergent properties. In the case of magnets, this approach can afford artificial antiferromagnets with tailored spin arrangements. Here, we fabricate an orthogonally-twisted bilayer by twisting 90 degrees two CrSBr ferromagnetic monolayers with an easy-axis in-plane anisotropy. The magneto-transport properties reveal multistep magnetization switching with a magnetic hysteresis opening, that is absent in the pristine case. By tuning the magnetic field, we modulate the remanent state and coercivity and select between hysteretic and non-hysteretic magneto-resistance scenarios. This complexity pinpoints spin anisotropy as a key aspect in twisted magnetic superlattices. Our results highlight the control over the magnetic properties in vdW heterostructures, leading to a variety of field-induced phenomena and opening a fruitful playground for creating desired magnetic symmetries and manipulating non-collinear magnetic configurations.
description: Main Text + Supplementary Information
Unidad Académica de Odontología de la UAZ, 60 años de trayectoria (1962-2022)
Creators: name: Muñoz-Escobedo, José Jesús
name: Flores-Sánchez, Milagros Del Carmen
name: Anaya-Álvarez, Minerva
Publisher: name: Contexto Odontológico
Year: 2023

description: La Unidad Académica de Odontología (UAO) de la Universidad Autónoma de Zacatecas (UAZ) cumplió 60 años el 10 de enero de 2022 y con ese objetivo realizaremos un recuento de su formación y trayectoria, un recorrido en sus diferentes fases: de Escuela, Facultad y Unidad Académica, sus espacios físicos, la transformación de su estructura curricular con un Plan de Estudios tradicional a uno denominado Sistema de Enseñanza Modular (SEM), el servicio social a fin de evitar que sus egresados se convirtieran en mano de obra barata para los programas gubernamentales en materia de salud bucal., la creación del Instituto de Investigaciones Odontológicas (INIVO), cuyo objetivo es generar conocimientos orientados a la solución de padecimientos periodontales y otros enfatizando los aspectos preventivos, sus primeras clínicas: CLIMUZAC (Clínica Multidisciplinaria Zacatecas CLIZAC (Clínica Zacatecas), CLITACO (Clínica Tacoaleche) que tuvieron sus inicios a finales de los 70’s, actualmente la UAO/UAZ cuenta con 17 clínicas, la apertura de las Clínicas de Jardín de Niños (CLIJANI) que contribuye a las prácticas y formación clínica de los estudiantes al brindar servicio dental profesional a niños de sectores desprotegidos, la Especialidad en Odontopediatría cuya finalidad es la prevención y atención de las alteraciones bucodentales a la población infantil del estado y el país; La creación de espacios dedicados a la difusión con la publicación de artículos científicos a través de la revista Perspectiva Odontológica, luego Contexto Odontológico, y finalmente dentro de las Jornadas de Investigación en Odontología un evento que se hace de manera anual y donde nace Conference Proceedings, donde se difunden los resultados de las investigaciones del evento previo, cabe mencionar también la importancia de la profesionalización docente y los estudiantes que son la fortaleza de nuestra institución, así como un breve homenaje al Dr. José Huerta Peña que desempeñó un papel importante en la UAO y la UAZ.
description: Contexto Odontológico, Vol. 12 Núm. 23 (2022): Contexto Odontológico, enero-junio 2022
Squeezed light at 1550 nm with a quantum noise reduction of 12.3 dB
Creators: name: Mehmet, Moritz
name: Ast, Stefan
name: Eberle, Tobias
name: Steinlechner, Sebastian
name: Vahlbruch, Henning
name: Schnabel, Roman
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Continuous-wave squeezed states of light at the wavelength of 1550 nm have recently been demonstrated, but so far the obtained factors of noise suppression still lag behind today's best squeezing values demonstrated at 1064 nm. Here we report on the realization of a half-monolithic nonlinear resonator based on periodically-poled potassium titanyl phosphate which enabled the direct detection of up to 12.3 dB of squeezing at 5 MHz. Squeezing was observed down to a frequency of 2 kHz which is well within the detection band of gravitational wave interferometers. Our results suggest that a long-term stable 1550 nm squeezed light source can be realized with strong squeezing covering the entire detection band of a 3rd generation gravitational-wave detector such as the Einstein Telescope.
Triclosán - interacción en el ser humano y el medio ambiente.
Creators: name: Acuña-Enciso, Judith
name: Gaitán-Fonseca, César Iván
name: Bermúdez-Jiménez, Carlos Omar
name: Cepeda-Arguelles, Oscar
name: Aguilera-Galaviz, Luis Alejandro
name: Sánchez-Balderas, Gregorio
Publisher: name: Contexto Odontológico
Year: 2023

description: En el presente artículo de revisión se recopila de manera general y relevante información acerca del triclosán, empleado comúnmente como desinfectante o incluso utilizado como auxiliar en el manejo de patologías periodontales, pero también catalogado como contaminante ambiental, donde se ha identificado que ocasiona diversas alteraciones en el mismo ser humano, así como en el medio ambiente. Haciendo un concentrado de investigaciones realizadas desde el 2017 al 2022 encontrados en diversos artículos científicos publicados en plataformas digitales como Pub-Med, Google Scholar y Science Direct. La finalidad es mencionar las principales fuentes de contaminación ambiental, la farmacocinética del mismo, los principales métodos de análisis para su identificación tanto en humanos como en el ambiente y sobre todo el relacionar los principales efectos ocasionados por el triclosán actuando principalmente como disruptor endócrino causante de alteraciones locales y sistémicas en el ser humano y en diversos modelos experimentales, permitiendo proporcionar información necesaria para decidir sobre el uso adecuado y concientizar el uso irracional del compuesto, mencionando como lineamientos internacionales el control que establecen las agencias reguladoras como FDA, SCCP, EPA, Unión Europea, DENMARK, Healt Canadá.
description: Contexto Odontológico, Vol. 12 Núm. 23 (2022): Contexto Odontológico, enero-junio 2022
Dark matter search with the ANTARES neutrino telescope
Creators: name: Zornoza, J. D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The ANTARES neutrino telescope was completed in 2008 with the installation of its twelfth line. Its scientific scope is very broad, but the two main goals are the observation of astrophysical sources and the indirect detection of dark matter. The latter is possible through neutrinos produced after the annihilation of WIMPs, which would accumulate in sources like the Sun, the Earth or the Galactic Centre. The neutralino, which arises in Supersymmetry models, is one of the most popular WIMP candidates. KK particles, which appear in Universal Extra Dimension models, are another one. Though in most models these annihilations would not directly produce neutrinos, they are expected from the decay of secondary particles. An important advantage of neutrino telescopes with respect to other indirect searches (like gamma rays or cosmic rays) is that a potential signal (for instance from the Sun) would be very clean, since no other astrophysical explanations could mimic it (like pulsars for the case of the positron excess seen by PAMELA). Moreover, the Galactic Centre is accessible for ANTARES, being in the Northern Hemisphere. In this talk I will present the results of the ANTARES telescope for dark matter searches, which include neutralino and KK particles.
description: NIM A Proceedings of RICAP 2011 On behalf of the ANTARES collaboration
Three-dimensional QCD phase diagram in the pNJL model
Creators: name: Liu, Lu-Meng
name: Xu, Jun
name: Peng, Guang-Xiong
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Based on the three-flavor Polyakov-looped Nambu$-$Jona-Lasinio (pNJL) model, we have studied the structure of the three-dimensional QCD phase diagram with respect to the temperature, the baryon chemical potential, and the isospin chemical potential, by investigating the interplay among the chiral quark condensate, the pion condensate, and the Polyakov loop. While the pNJL model leads to qualitatively similar structure of the normal quark phase, the pion superfluid phase, and the Sarma phase as well as their phase boundaries, when compared to the NJL model, the inclusion of the Polyakov loop enlarges considerably the areas of the pion superfluid phase and the Sarma phase, and leads to critical end points at higher temperatures. With the contribution of the gluon dynamics effectively included, the present study is expected to give a more reliable prediction of the three-dimensional QCD phase diagram compared to that in the NJL model.
description: 8 pages, 5 figures
Photonic Communications and Information Encoding in Biological Systems
Creators: name: Mayburov, S. N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: The structure of optical radiation emitted by the samples of loach fish eggs is studied. It was found earlier that such radiation perform the communications between distant samples, which result in the synchronization of their development. The photon radiation in form of short quasi-periodic bursts was observed for fish and frog eggs, hence the communication mechanism can be similar to the exchange of binary encoded data in the computer nets via the noisy channels. The data analysis of fish egg radiation demonstrates that in this case the information encoding is similar to the digit to time analogue algorithm.
description: 9 pages, 4 figures,Talk given at 'Quantum Information' conference, Torino, may 2012
Charmonium Production and Corona Effect
Creators: name: Digal, S.
name: Satz, H.
name: Vogt, R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the centrality dependence to be expected if only charmonium production in the corona survives in high energy nuclear collisions, with full suppression in the hot, deconfined core. To eliminate cold nuclear matter effects as far as possible, we consider the ratio of charmonium to open charm production. The centrality dependence of this ratio is found to follow a universal geometric form, applicable to both RHIC and LHC in collisions at central and forward rapidities.
description: 8 pages, 6 figures
Alignment, modeling and iterative adaptive robust control of cross-directional processes
Creators: name: Farahmand, Fazel
Publisher: name: University of British Columbia
Year: 2010

description: A key issue in paper-machine Cross-Directional (CD) Control is alignment. Typically, this mapping problem is a non-linear and slowly time-varying phenomenon for individual machines. The first part of this thesis specifically focuses on different causes of the misalignment and reviews recent developments in CD mapping. It summarizes the results of a comprehensive survey of different alignment schemes that have been used in CD control processes. This dissertation presents a novel, deterministic, tensor-based modeling of the closed loop controlled CD process and an alignment method. First, we link the CD data to the tensor model. Exploiting this link, we derive a deterministic blind PARAFAC decomposition as an alignment method. The proposed PARAFAC capitalizes on the physical location of the actuators, scanning databoxes and their temporal diversities. Its performance is verified in several simulations then tested, evaluated and implemented as an alignment tool on real industrial paper machine. In the second section we present a new novel Adaptive Robust Control approach to the multivariable CD process of continuous web manufacturing. We have applied discretized Internal Model Control(IMC)-based classical Windsurfing to each individual separated spatial frequency. This approach allows the dynamical bandwidth of the closed-loop system to be increased progressively at each spatial frequency through an iterative control relevant system identification and control design procedure. The method deals with both model uncertainty and measurement noise issues. We also have applied Discrete-time H-infinity Windsurfing to each individual separated spatial frequency, starting with an initial model and a robust stabilizing controller at each spatial frequency. This modified approach provides robust stability through iterations. The approach is evaluated through a number of simulation experiments. Finally, in a closed-loop approach to modifying the existing industrial CD controller, the objective is turned to the modification of the Windsurfing method. An input signal is designed for the system identification and control design. The nu-gap approach to robust control is fed into the Windsurfing model. Since the nu-gap metric establishes the upper and lower bounds, this approach reduces the number of iterations before the design is completed.
Survey of amarantheceae family from Taif Saudi Arabia peninsular
Creators: name: Majrashi, Ali
Publisher: name: figshare
Year: 2020
Subjects: subject: 70302 Agronomy
subject: FOS: Agriculture, forestry and fisheries

description: Agricultural system is currently undergoing uprising in political social shift to form a sustainable agricultural system with the aim of providing adequate ecological biodiversity and food production. Weeds are wild plants grow in an environment without the contribution of any human activities that that have positive or negative impact to the environment. The study aims at carrying a survey on weeds of family Amarantheceae grown in cultivated environment with purpose of recording and identification. the study was conducted in the Taif region of Saudi Arabian kingdom in a mountain with an elevation level of (Area A = Al sail 1700 m, Area B = Al Wahat and Al Watit 1500, C = Leeih 1500, D = AL Gaim and Saisad 1500, F = E = Al Shafa 2200 m, F = AL Hada = 2000 m). The study was conducted between December 2018 to August 2019. The study was carried out based on enviromental survey. Diverse number of weeds were identified and collected from the examined study area. Results revealed 10 aggressive weeds species. hybridus 407, Amaranthus viridis 382, Chenopodium murale ,Chenopodium album 142, Chenopodium vulvaria 81, Amaranthus graecizans 32, Chenopodium 39, Atriplex leucoclada 30 ,Chenopodium opulifolium 15, Aerva javanica 3. Similarly, eight agricultural crops were documented from the study area; Brassica oleracea var, botrytis 159, Solanum melongena 54, Petroselinum sp 165, Ficus carica 178, Lactuca sativa 27, Punica granatum 12, Vitis spp 43 and Brassica oleracea 56 respectively. Results of the survey obtained from the study would be useful in creating management control and proposing research toward improved new weed control measures. Also has provided insight on purposeful weeds control in Taif Area. The study recommends further studies on order types of weeds in the area.
Alterung und Laufzeitverlängerung von Kernkraftwerken in Europa
Creators: name: Müllner Nikolaus
name: Gufler Klaus
name: Liebert Wolfgang
Publisher: name: Zenodo
Year: 2022
Subjects: Kernenergie
Reaktor
Nuklearstromanteil
EURATOM

description: BOKU-Energiecluster Factsheet

Die Mitgliedsstaaten der Europäischen Union verfolgen verschiedene Strategien zur Dekarbonisierung des Energiesystems. Vor allem die zukünftige Rolle der Kernenergie wird kontrovers diskutiert. Betreiberstaaten führen an, dass Kernreaktoren emissionsarm sind und daher eine zentrale Rolle bei der Transformation des Energiesystems spielen sollten. Kritiker verweisen auf den grundsätzlich nur begrenzten Beitrag der Kernenergie zum Klimaschutz, für den man aber das Risiko schwerer Unfälle, die Endlagerung hochradioaktiver Abfälle, die Proliferationsgefahr, die Abhängigkeit von Uranimporten sowie die mangelnde Wirtschaftlichkeit in Kauf nehmen müsse. Die nur vier europäischen Reaktorneubauten weisen ausufernde Kosten und
massive Bauzeitüberschreitungen auf und können die altersbedingt anstehenden Abschaltungen nicht ausgleichen. Daher setzen Länder, die an der Kernenergie festhalten, zunehmend auf Laufzeitverlängerungen bestehender Kernkraftwerke (KKW).
On Hurst exponent estimation under heavy-tailed distributions
Creators: name: Barunik, Jozef
name: Kristoufek, Ladislav
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Finance (q-fin.ST)
subject: FOS: Economics and business

description: In this paper, we show how the sampling properties of the Hurst exponent methods of estimation change with the presence of heavy tails. We run extensive Monte Carlo simulations to find out how rescaled range analysis (R/S), multifractal detrended fluctuation analysis (MF-DFA), detrending moving average (DMA) and generalized Hurst exponent approach (GHE) estimate Hurst exponent on independent series with different heavy tails. For this purpose, we generate independent random series from stable distribution with stability exponent α changing from 1.1 (heaviest tails) to 2 (Gaussian normal distribution) and we estimate the Hurst exponent using the different methods. R/S and GHE prove to be robust to heavy tails in the underlying process. GHE provides the lowest variance and bias in comparison to the other methods regardless the presence of heavy tails in data and sample size. Utilizing this result, we apply a novel approach of the intraday time-dependent Hurst exponent and we estimate the Hurst exponent on high frequency data for each trading day separately. We obtain Hurst exponents for S&P500 index for the period beginning with year 1983 and ending by November 2009 and we discuss the surprising result which uncovers how the market's behavior changed over this long period.
Zusammenstellung von Versuchsergebnissen propellererregter Druckschwankungen unter besonderer Berücksichtigung der Kavitation
Creators: name: Weitendorf, Ernst-August
Publisher: name: TUHH Universitätsbibliothek
Year: 1973
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Zusammenstellung von Versuchsergebnissen propellererregter Druckschwankungen unter besonderer Berücksichtigung der Kavitation
Polarized Beam Conditioning in Plasma Based Acceleration
Creators: name: Vieira, J.
name: Huang, C. -K.
name: Mori, W. B.
name: Silva, L. O.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The acceleration of polarized electron beams in the blowout regime of plasma-based acceleration is explored. An analytical model for the spin precession of single beam electrons, and depolarization rates of zero emittance electron beams, is derived. The role of finite emittance is examined numerically by solving the equations for the spin precession with a spin tracking algorithm. The analytical model is in very good agreement with the results from 3D particle-in-cell simulations in the limits of validity of our theory. Our work shows that the beam depolarization is lower for high-energy accelerator stages, and that under the appropriate conditions, the depolarization associated with the acceleration of 100-500 GeV electrons can be kept below 0.1-0.2%.
description: 24 pages, 7 figures, accepted for publication in Phys. Rev. ST-AB
New earliest Paleocene (Puercan) periptychid ‘condylarths’ from the Great Divide Basin, Wyoming, USA
Creators: name: Atteberry, Madelaine R.
name: Eberle, Jaelyn J.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: An earliest Paleocene (Puercan) locality in the China Butte Member of the Fort Union Formation in the Great Divide Basin (GDB) of Wyoming contains a diverse mammalian faunal assemblage, including a number of ‘condylarth’ taxa. From UCM locality 2011035, we describe three new periptychid ‘condylarths’ and report first occurrences of Maiorana noctiluca, Ampliconus antoni and Conacodon harbourae from the GDB. The new genus and species Miniconus jeanninae is characterized by a ridge-like metaconid and incipient paraconid on p4, and a molar parastylid. Based on its similarity to M. jeanninae and differences from other species of Oxyacodon, O. archibaldi is placed within the new genus Miniconus. A second new genus and species Beornus honeyi is characterized by its large size with inflated premolars and molars, and small molar paraconid. A new species of Conacodon, C. hettingeri, is similar to other species of Conacodon but differs in its m3 morphology. To examine the relationships of the three new GDB taxa to each other and to other Puercan ‘condylarths’ from the Western Interior of North America, a phylogenetic analysis was performed using 28 Puercan periptychid and arctocyonid taxa as well as the eutherian outgroup taxon Procerberus formicarum and 64 dental characters. The resulting strict consensus tree of 210 steps confirms that the three new species from the GDB fall within Periptychidae. Beornus honeyi forms a polytomy with Mithrandir gillianus and Hemithlaeus kowalevskianus. Conacodon hettingeri is recovered as the basal member of a clade that includes the other species of Conacodon. Miniconus jeanninae is the sister to M. archibaldi. Additionally, the early Puercan Mimatuta spp. and Maiorana noctiluca fall within the Arctocyonidae, supporting the phylogenetic placement of these taxa by other recent analyses. The occurrence of the three new periptychids in the GDB indicates that mammalian diversity is higher than previously suggested for the early Puercan. http://zoobank.org/urn:lsid:zoobank.org.pub:4F31F461-814D-4C4A-99A9-3D7ED5D6701C