cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The impact and implications of migrant workers on Karawang, West Java, Indonesia
Creators: name: Doyon, Andréanne
Publisher: name: University of British Columbia
Year: 2010

description: The presence of the industrial estates and future development projects located in Karawang, West Java, Indonesia has had a deep impact on the local population. Those more educated or with previous work experience suited for industrial work have been able to benefit through employment in the industrial estates. Conversely, a large number of the local population residing in small predominantly agricultural based rural villages have not benefited in the same way. There has also been an influx of migrant workers to the area seeking work in the industrial estates. The presence of these migrant workers has created employment opportunities for the rural population through the establishment of small businesses such as warung (food and goods stalls), kost (room rentals) or by operating ojek (motor bike taxis). The rural population has also been affected by the social interactions with migrant workers. This thesis examines the impacts and implications of migrant workers on Karawang by examining the spatial, social and financial interactions between migrant workers and the local rural population. My research intends to find answers to how have the migrant workers have had an impact on the local rural population in Karawang and their villages, and what sorts of transformations have occurred in Karawang as a result of the industrial developments. This thesis explores how the presence of these migrant workers is changing the livelihood patterns and lifestyles of the local rural population in enabling their agrarian transition.
Three Challenges in Developing Open Multilingual DH Educational Resources: The Case of The Programming Historian
Creators: name: Castro, Antonio Rojas
name: Papastamkou, Sofia
name: Anna-Maria Sichani
Publisher: name: Zenodo
Year: 2019
Subjects: digital history
digital humanities
digital pedagogy
open access
inclusivity
multilingual educational resources

description: What are the necessary conditions for developing multilingual open DH educational resources? Drawing on the English, Spanish and French-speaking editions of The Programming Historian, the aim of this lightning talk is to discuss three challenges encountered while implementing linguistic and cultural inclusivity and access. The first challenge concerns the internationalization of the Editorial Board and our lessons. In 2016, a Spanish-language team was recruited in order to translate tutorials under the title The Programming Historian en español. In 2018, the Board recruited a French-language sub-team and in April 2019 it launched The Programming Historian en français. The Board also published a set of “Guidelines for writing for a global audience”: authors are encouraged to write tutorials that are as much accessible as possible, having in mind cultural differences. The second challenge is the translation process. The act of translating requires extensive teamwork and coordination across our editorial team. Our translations are adapted to the target audience and they usually contain new instructions that cover the necessary steps to process texts and data in Spanish or French. In addition, these new full-language initiatives have challenged our infrastructure as an Open Access scholarly publication. As we are committed to publishing openly reviewed tutorials to a high standard, there is an extensive set of technical, editorial and administrative processes and policies in place. The third challenge is the production of original lessons in Spanish and French. After translating more than 40 tutorials from English to Spanish, in April 2019, The Programming Historian en español has just released its first two original tutorials in Spanish. The design of a strategy to promote lessons that address research questions relevant for the Hispanic and Francophone communities seems a priority in the near future. Lessons that use alternative methods could contribute to increase the diversity of DH, especially if translated into English.
description: The presentation was part of a workshop on 'Accelerating DH Education' at the annual ADHO conference in Utrecht (DH2019) on 8th July 2019. The proceedings of the workshop are available at https://hcommons.org/deposits/item/hc:25461/
Non-adiabatic perturbations in Ricci dark energy model
Creators: name: Karwan, Khamphee
name: Thitapura, Thiti
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We show that the non-adiabatic perturbations between Ricci dark energy and matter can grow both on superhorizon and subhorizon scales, and these non-adiabatic perturbations on subhorizon scales can lead to instability in this dark energy model. The rapidly growing non-adiabatic modes on subhorizon scales always occur when the equation of state parameter of dark energy starts to drop towards -1 near the end of matter era, except that the parameter α of Ricci dark energy equals to 1/2. In the case where α = 1/2, the rapidly growing non-adiabatic modes disappear when the perturbations in dark energy and matter are adiabatic initially. However, an adiabaticity between dark energy and matter perturbations at early time implies a non-adiabaticity between matter and radiation, this can influence the ordinary Sachs-Wolfe (OSW) effect. Since the amount of Ricci dark energy is not small during matter domination, the integrated Sachs-Wolfe (ISW) effect is greatly modified by density perturbations of dark energy, leading to a wrong shape of CMB power spectrum. The instability in Ricci dark energy is difficult to be alleviated if the effects of coupling between baryon and photon on dark energy perturbations are included.
description: 13 pages, 6 figures V2: some typos corrected, references added
Collective modes of coupled phase oscillators with delayed coupling
Creators: name: Ares, Saul
name: Morelli, Luis G.
name: Jorg, David J.
name: Oates, Andrew C.
name: Julicher, Frank
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study the effects of delayed coupling on timing and pattern formation in spatially extended systems of dynamic oscillators. Starting from a discrete lattice of coupled oscillators, we derive a generic continuum theory for collective modes of long wavelength. We use this approach to study spatial phase profiles of cellular oscillators in the segmentation clock, a dynamic patterning system of vertebrate embryos. Collective wave patterns result from the interplay of coupling delays and moving boundary conditions. We show that the phase profiles of collective modes depend on coupling delays.
description: 5 pages, 2 figures
The Warm Ism In The Sgr A Complex: Mid-J Co, Atomic Carbon, Ionized Atomic Carbon, And Ionized Nitrogen Line Observations With The Herschel-Hifi And The Nanten2/Smart Telescopes
Creators: name: García, Pablo
Publisher: name: Zenodo
Year: 2015
Subjects: ISM
Galactic Centre
Moleculas Clouds
Massive Star Formation

description: The interstellar medium (ISM) in the few central hundred parsecs of the Galaxy has physical properties that differ strongly from the rest of the ISM in the Galaxy. In the present work, large-scale submillimeter heterodyne observations towards the Sgr A Complex (located in the Galactic Center) covering approx. 300 arcminutes-square, obtained in the frame of the Herschel EXtraGALactic Guaranteed Time key Program (HEXGAL) with the Herschel-HIFI satellite and complementary data with the NANTEN2/SMART telescope are presented. The observed species are: CO(J=4-3) at 461.0 GHz observed with the NANTEN2/SMART telescope, [CI] 3P1 - 3P0 at 492.2 GHz, [CI] 3P2 - 3P1 at 809.3 GHz, [NII] 3P1 - 3P0 at 1461.1 GHz, and [CII] 2P3/2 - 2P1/2 at 1900.5 GHz observed with the Herschel-HIFI satellite. The observations are presented in 1 km/s spectral resolution, and spatial resolutions ranging from 46 to 28 arcseconds. The frequency bandwidth of the three lower frequency lines largely allows to cover the emission found within +-200 km/s, while in the two high frequency lines, the upper LSR velocity is limited to +94 km/s for the [NII] line due to baseline instabilities, and to +144 km/s for the [CII] line, due to the available spectrometer bandwidth. The spatial distribution of the emission in all lines is very widespread. The bulk of the carbon monoxide emission is found toward Galactic latitudes below the Galactic plane, and all major known molecular clouds are identified. Both neutral atomic carbon lines have their brightest emission associated with the +50 km/s cloud. Their spatial distribution at this LSR velocity describes a crescent-shape structure, which is probably the result of interaction with the energetic event (one or several supernovae explosions) that gave origin to the non thermal Sgr A-East source. The [CII] and [NII] emissions have most of their flux associated to the thermal Arched-Filaments and the H-Region, with also bright spots in [CII] emission towards the Central Nuclear Disk. Out of the large number of astronomical sources (Arched-Filaments, the H-Region, more than ten molecular clouds, the Circum Nuclear Disk, the Sickle H II region, gas streamers, high velocity gas, and high velocity compact clumps) detected in these datasets, the Arched-Filaments and the High Velocity Gas Clouds were selected for a preliminary analysis of their physical conditions, while future work related to the +50 km/s and +20 km/s Clouds is outlined.
Surface codes, quantum circuits, and entanglement phases
Creators: name: Behrends, Jan
name: Venn, Florian
name: Béri, Benjamin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Surface codes$\unicode{x2014}$leading candidates for quantum error correction (QEC)$\unicode{x2014}$and entanglement phases$\unicode{x2014}$a key notion for many-body quantum dynamics$\unicode{x2014}$have heretofore been unrelated. Here, we establish a link between the two. We map two-dimensional (2D) surface codes under a class of incoherent or coherent errors (bit flips or uniaxial rotations) to $(1+1)$D free-fermion quantum circuits via Ising models. We show that the error-correcting phase implies a topologically nontrivial area law for the circuit's 1D long-time state $|Ψ_\infty\rangle$. Above the error threshold, we find a topologically trivial area law for incoherent errors and logarithmic entanglement in the coherent case. In establishing our results, we formulate 1D parent Hamiltonians for $|Ψ_\infty\rangle$ via linking Ising models and 2D scattering networks, the latter displaying respective insulating and metallic phases and setting the 1D fermion gap and topology via their localization length and topological invariant. We expect our results to generalize to a duality between the error-correcting phase of ($d+1$)D topological codes and $d$-dimensional area laws; this can facilitate assessing code performance under various errors. The approach of combining Ising models, scattering networks, and parent Hamiltonians can be generalized to other fermionic circuits and may be of independent interest.
description: 16 pages, 9 figures; v2: accepted manuscript
The population of natural Earth satellites
Creators: name: Granvik, Mikael
name: Vaubaillon, Jeremie
name: Jedicke, Robert
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We have for the first time calculated the population characteristics of the Earth's irregular natural satellites (NES) that are temporarily captured from the near-Earth-object (NEO) population. The steady-state NES size-frequency and residence-time distributions were determined under the dynamical influence of all the massive bodies in the solar system (but mainly the Sun, Earth, and Moon) for NEOs of negligible mass. To this end, we compute the NES capture probability from the NEO population as a function of the latter's heliocentric orbital elements and combine those results with the current best estimates for the NEO size-frequency and orbital distribution. At any given time there should be at least one NES of 1-meter diameter orbiting the Earth. The average temporarily-captured orbiter (TCO; an object that makes at least one revolution around the Earth in a co-rotating coordinate system) completes $(2.88\pm0.82)\rev$ around the Earth during a capture event that lasts $(286\pm18)\days$. We find a small preference for capture events starting in either January or July. Our results are consistent with the single known natural TCO, 2006 RH$_{120}$, a few-meter diameter object that was captured for about a year starting in June 2006. We estimate that about 0.1% of all meteors impacting the Earth were TCOs.
description: 63 pages, 29 figures. Accepted for publication in Icarus (December 13, 2011)
SURVEY OF CHENOPODIACEAE FAMILY FROM TAIF, SAUDI ARABIA PENINSULAItem
Creators: name: Majrashi, Ali
Publisher: name: figshare
Year: 2020
Subjects: subject: Anatomy
subject: 70302 Agronomy
subject: FOS: Agriculture, forestry and fisheries

description: Weeds are consider as a significant important biological indicator of crop production resulting to yield loss of about 50%. Identification of weeds is very difficult from their morphological features. Despite weeds are the real challenge in farming in the developed, developing and underdeveloped countries. Nevertheless, weeds are also part of primary producers. 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 have positive or negative impact to the environment. The aim of the study is to documents weeds of family Chenopodiaceae and agricultural crops grown in 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 m, C = Leeih 1500 m, D = AL Gaim and Saisad 1500 m, F = E = Al Shafa 2200 m, F = AL Hada = 2000 m). The study was carried out based on environmental survey. Diverse number of weeds were identified and collected from the examined study area. Results revealed aggressive weeds species. Atriplex leucoclada, Chenopodium valria, Chenopodium album, Chenopodium murale, Chenopodium vulvaria, Chenopodium mavele, Dysphania ambrosioides and Lamb’s quarters with the total number of 1727. Chenopodium vulvariawas found with the highest number of species 553, follow by Chenopodium album 394 and the least is Lamb’s quarters 17. The study, similarly, documented 12 agricultural crops weeds from the study area; Portulaca oleracea, Raphanus sativus, Phoenix dactylifera, Mentha, Rosa damascena, Solanum melongena, Petroselinum sp, Zea mays, Cauliflower, Vitis spp, Brassica oleracea var. capitate and Cucurbita pepo. Findings from the study will aid management control and proposing research toward improved new weed control measures. Also has provided insight on purposeful weeds control in Taif Area.
Generalizations of Perelomov's identity on the completeness of coherent states
Creators: name: Greiter, Martin
name: Thomale, Ronny
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We proof the Perelomov identity for arbitrary 2D lattices using Fourier transformation. We further generalize it to situations where the origin does not coincide with a lattice site, and where the form of the exponential factor is reminiscent of magnetic wave functions in uniaxial rather than symmetric gauge.
description: 4 pages, no figures
Untitled SURVEY OF CHENOPODIACEAE FAMILY FROM TAIF, SAUDI ARABIA PENINSULAItem
Creators: name: Majrashi, Ali
Publisher: name: figshare
Year: 2020
Subjects: subject: Anatomy
subject: 70302 Agronomy
subject: FOS: Agriculture, forestry and fisheries

description: Weeds are consider as a significant important biological indicator of crop production resulting to yield loss of about 50%. Identification of weeds is very difficult from their morphological features. Despite weeds are the real challenge in farming in the developed, developing and underdeveloped countries. Nevertheless, weeds are also part of primary producers. 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 have positive or negative impact to the environment. The aim of the study is to documents weeds of family Chenopodiaceae and agricultural crops grown in 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 m, C = Leeih 1500 m, D = AL Gaim and Saisad 1500 m, F = E = Al Shafa 2200 m, F = AL Hada = 2000 m). The study was carried out based on environmental survey. Diverse number of weeds were identified and collected from the examined study area. Results revealed aggressive weeds species. Atriplex leucoclada, Chenopodium valria, Chenopodium album, Chenopodium murale, Chenopodium vulvaria, Chenopodium mavele, Dysphania ambrosioides and Lamb’s quarters with the total number of 1727. Chenopodium vulvariawas found with the highest number of species 553, follow by Chenopodium album 394 and the least is Lamb’s quarters 17. The study, similarly, documented 12 agricultural crops weeds from the study area; Portulaca oleracea, Raphanus sativus, Phoenix dactylifera, Mentha, Rosa damascena, Solanum melongena, Petroselinum sp, Zea mays, Cauliflower, Vitis spp, Brassica oleracea var. capitate and Cucurbita pepo. Findings from the study will aid management control and proposing research toward improved new weed control measures. Also has provided insight on purposeful weeds control in Taif Area.
Probing many-body correlations using quantum-cascade correlation spectroscopy
Creators: name: Scarpelli, Lorenzo
name: Elouard, Cyril
name: Johnsson, Mattias
name: Morassi, Martina
name: Lemaitre, Aristide
name: Carusotto, Iacopo
name: Bloch, Jacqueline
name: Ravets, Sylvain
name: Richard, Maxime
name: Volz, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The radiative quantum cascade, i.e. the consecutive emission of photons from a ladder of energy levels, is of fundamental importance in quantum optics. For example, the two-photon cascaded emission from calcium atoms was used in pioneering experiments to test Bell inequalities. In solid-state quantum optics, the radiative biexciton-exciton cascade has proven useful to generate entangled-photon pairs. More recently, correlations and entanglement of microwave photons emitted from a two-photon cascaded process were measured using superconducting circuits. All these experiments rely on the highly non-linear nature of the underlying energy ladder, enabling direct excitation and probing of specific single-photon transitions. Here, we use exciton polaritons to explore the cascaded emission of photons in the regime where individual transitions of the ladder are not resolved, a regime that has not been addressed so far. We excite a polariton quantum cascade by off-resonant laser excitation and probe the emitted luminescence using a combination of spectral filtering and correlation spectroscopy. Remarkably, the measured photon-photon correlations exhibit a strong dependence on the polariton energy, and therefore on the underlying polaritonic interaction strength, with clear signatures from two- and three-body Feshbach resonances. Our experiment establishes photon-cascade correlation spectroscopy as a highly sensitive tool to provide valuable information about the underlying quantum properties of novel semiconductor materials and we predict its usefulness in view of studying many-body quantum phenomena.
Future prospects for the determination of the Wilson coefficient $C_{7γ}^\prime$
Creators: name: Becirevic, Damir
name: Kou, Emi
name: Yaouanc, Alain Le
name: Tayduganov, Andrey
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss the possibilities of assessing a non-zero $C_{7γ}^\prime$ from the direct and the indirect measurements of the photon polarization in the exclusive $b \to sγ^{(*)}$ decays. We focus on three methods and explore the following three decay modes: $B \to K^*(\to K_Sπ^0)γ$, $B \to K_1(\to Kππ)γ$, and $B \to K^*(\to Kπ)\ell^+\ell^-$. By studying different New Physics scenarios we show that the future measurement of conveniently defined observables in these decays could provide us with the full determination of $C_{7γ}$ and $C_{7γ}^\prime$.
description: 34 pages, 10 figures
Implant treatment outcomes at the University of British Columbia graduate periodontics clinic : a retrospective analysis
Creators: name: Lamberts, Bridget Evelyn
Publisher: name: University of British Columbia
Year: 2010

description: Objectives: Dental implants have predictable outcomes and high survival rates. However, a small subset of patients experience implant failure. A retrospective review of charts at UBC was conducted to determine how patient-, disease-, site-, surgeon- and implant design-centered risk factors affect the survival of implants. Methods: A review of implants placed between 1989-2006 was completed. Inclusion criteria required a one-year post-placement diagnostic radiograph. Implant failure was defined as the loss or removal of an implant at any time. Bivariate analyses were used to identify variables associated with implant failure. Risk factors with p-values < 0.05 or that were deemed clinically relevant by previous studies were included in stepwise linear multiple regression and logistic regression analyses. Results: Based on the inclusion criteria, 107 patients and 300 implants were included in the study. Follow-up ranged from 1.00 to 19.79 years (mean 4.08 + 2.95 years). At follow-up, 92.3% of implants survived and 84.1% of patients did not experience failure, In the failing implant group, 13.1% of patients had one failed implant and 2.8% of patients had two failed implants. The survival rate of replacement implants was 85.71%. Most factors studied had no statistically significant impact on survival. Only simultaneous sinus augmentation and removable prostheses were significantly associated with failure and guided bone regeneration was significantly associated with survival. In the regression analyses, the predictors showing the largest effect on thread exposure were: implant model, jaw (in favor of mandibular implants), and surface (in favor of rough surfaces). The odds ratio for implant failure was 16.87 for osteotome sinus elevation and 0.288 for decreasing implant width. Conclusions: The survival rate for implants placed at UBC is similar to those reported in the literature. Most variables considered risk factors did not have a statistically significant effect on implant failure. Given the high survival rates of implants, a small sample size does not allow for trends in the data to reach statistical significance, even if a true difference exists.
Co-movement of energy commodities revisited: Evidence from wavelet coherence analysis
Creators: name: Vacha, Lukas
name: Barunik, Jozef
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Finance (q-fin.ST)
subject: FOS: Economics and business

description: In this paper, we contribute to the literature on energy market co-movement by studying its dynamics in the time-frequency domain. The novelty of our approach lies in the application of wavelet tools to commodity market data. A major part of economic time series analysis is done in the time or frequency domain separately. Wavelet analysis combines these two fundamental approaches allowing study of the time series in the time- frequency domain. Using this framework, we propose a new, model-free way of estimating time-varying cor- relations. In the empirical analysis, we connect our approach to the dynamic conditional correlation approach of Engle (2002) on the main components of the energy sector. Namely, we use crude oil, gasoline, heating oil, and natural gas on a nearest-future basis over a period of approximately 16 and 1/2 years beginning on November 1, 1993 and ending on July 21, 2010. Using wavelet coherence, we uncover interesting dynamics of correlations between energy commodities in the time-frequency space.
Rezension/Reseña: Revolutionary Romances. Transkulturelle Kunstgeschichten in der DDR (Albertinum Dresden 2022)
Creators: name: Kaun, Franziska
Publisher: name: Miradas - Zeitschrift für Kunst- und Kulturgeschichte der Amérikas und der iberischen Halbinsel
Year: 2023

description: Miradas - Zeitschrift für Kunst- und Kulturgeschichte der Amérikas und der iberischen Halbinsel, Bd. 7 (2023): Miradas
The Need for New Search Strategies for Fourth Generation Quarks at the LHC
Creators: name: Geller, Michael
name: Bar-Shalom, Shaouly
name: Eilam, Gad
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Most limits on the fourth generation heavy top quark (the t') are based on the assumed dominance of t' -> Wb, which is expected to be case in the minimal fourth generation framework with a single Higgs (the so called SM4). Here we show, within a variant of a Two Higgs Doublet Model with four generations of fermions, that, in general, a different t' detection strategy is required if the physics that underlies the new heavy fermionic degrees of freedom goes beyond the "naive" SM4. We find that the recent CMS lower bounds: m_{t'}< 450 GeV in the semi-leptonic channel pp -> t't' -> lνqqbb and m_{t'}< 557 GeV in the dilepton channel pp -> t't' ->llννbb, that were obtained using the customary (SM4-driven) detection strategies, do not apply. In particular, we demonstrate that if the decay t' -> ht dominates, then applying the "standard" CMS search tools leads to a considerably relaxed lower bound: m_{t'} >~350 GeV. We, therefore, suggest an alternative search strategy that is more sensitive to beyond SM4 dynamics of the fourth generation fermions.
description: 12 pages, 8 figures
Travelling Randomly on the Poincaré Half-Plane with a Pythagorean Compass
Creators: name: Cammarota, Valentina
name: Orsingher, Enzo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: A random motion on the Poincaré half-plane is studied. A particle runs on the geodesic lines changing direction at Poisson-paced times. The hyperbolic distance is analyzed, also in the case where returns to the starting point are admitted. The main results concern the mean hyperbolic distance (and also the conditional mean distance) in all versions of the motion envisaged. Also an analogous motion on orthogonal circles of the sphere is examined and the evolution of the mean distance from the starting point is investigated.
Effectiveness of Federal Marketing Orders for Fruits And Vegetables
Creators: name: Jesse, Edward V.
name: Johnson, Aaron C.
name: Jesse, Edward V.
name: Johnson, Aaron C.
Publisher: name: Unknown
Year: 1981
Subjects: subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business
subject: Marketing orders
subject: fruits
subject: vegetables
subject: market power
subject: prices
subject: price variability

description: Prices for fruits and vegetables sold under Federal marketing orders generally have not exceeded prices for similar commodities not covered by orders. Nor have order commodity prices been significantly more stable from year to year. Orders that limit quantity marketed and apply to all domestic production show historical commodity price patterns that are statistically indistinguishable from price patterns for commodities covered by weaker orders. However, orders may tend to be instituted more frequently for products with extreme price variability; and they may be only partially successful in reducing that instability.
Rezension/Reseña: Wissen über Brücken – Conocimiento sobre Puentes. Relating to Gloria E. Anzaldúa in Words, Vision and Context – Ein kollektives Übersetzungsprojekt
Creators: name: Rodriguez Bisbicus, Ana María
Publisher: name: Miradas - Zeitschrift für Kunst- und Kulturgeschichte der Amérikas und der iberischen Halbinsel
Year: 2023

description: Miradas - Zeitschrift für Kunst- und Kulturgeschichte der Amérikas und der iberischen Halbinsel, Bd. 7 (2023): Miradas
Time-dependent transport of electrons through a photon cavity
Creators: name: Gudmundsson, Vidar
name: Jonasson, Olafur
name: Tang, Chi-Shung
name: Goan, Hsi-Sheng
name: Manolescu, Andrei
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We use a non-Markovian master equation to describe the transport of Coulomb interacting electrons through an electromagnetic cavity with one quantized photon mode. The central system is a finite parabolic quantum wire that is coupled weakly to external parabolic quasi-one-dimensional leads at $t=0$. With a stepwise introduction of complexity to the description of the system and a corresponding stepwise truncation of the ensuing many-body spaces we are able to describe the time-dependent transport of Coulomb-interacting electrons through a geometrically complex central system. We take into account the full electromagnetic interaction of electrons and cavity photons without resorting to the rotating wave approximation or reduction of the electron states to two levels. We observe that the number of initial cavity photons and their polarization can have important effects on the transport properties of the system. The quasiparticles formed in the central system have a lifetime limited by the coupling to the leads and radiation processes active on a much longer timescale.
description: RevTeX (pdf-LaTeX) 11 pages with 12 jpg-figures included
Supplemental Material for Zhu et al., 2020
Creators: name: Qian-Hao Zhu
name: Stiller, Warwick
name: Moncuquet, Philippe
name: Gordon, Stuart
name: Yuman Yuan
name: Barnes, Scott
name: Wilson, Iain
Publisher: name: GSA Journals
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Table S1 contains Primers used in the study; Table S2 contains polymorphic SNPs between the two parental accessions; Table S3 contains the genes differentially expressed between the mutant and wild-type; Table S4 contains the cis-elements in the promoters of the genes in the genetic interval underlying the mutation; Table S5 contains enriched GO terms of the differentially expressed genes; Figures S1 and S2 contain the frequency of the mutant allele based on SNP chip and bulk segregant analysis; Figure S3 contains the expression level of the two candidate genes in various cotton tissues; Figures S4 and S5 contain sequence alignment; Figure S6 contains the comparison of the two candidate genes.
Dynamical CP violation at finite temperature
Creators: name: Dianfu, Wang
name: Xiaoyu, Sun
name: Chao, Liang
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Based on the generalized Yang-Mills model, CP violation behavior at finite temperature is investigated, and it is shown that dynamical CP violation of the generalized Yang-Mills model at zero temperature can be restored at finite temperature.
description: 6 pages
Declinación Magnética: Margen de error (¿Cómo se escribe occidental?)
Creators: name: Dehn Tutosaus, Rhea
Publisher: name: Miradas - Zeitschrift für Kunst- und Kulturgeschichte der Amérikas und der iberischen Halbinsel
Year: 2023

description: Miradas - Zeitschrift für Kunst- und Kulturgeschichte der Amérikas und der iberischen Halbinsel, Bd. 7 (2023): Miradas
Quantitative characterization of run-and-tumble statistics in bulk bacterial suspensions
Creators: name: Zhao, Yongfeng
name: Kurzthaler, Christina
name: Zhou, Nan
name: Schwarz-Linek, Jana
name: Devailly, Clemence
name: Arlt, Jochen
name: Huang, Jian-Dong
name: Poon, Wilson C. K.
name: Franosch, Thomas
name: Martinez, Vincent A.
name: Tailleur, Julien
Publisher: name: arXiv
Year: 2022
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We introduce a numerical method to extract the parameters of run-and-tumble dynamics from experimental measurements of the intermediate scattering function. We show that proceeding in Laplace space is unpractical and employ instead renewal processes to work directly in real time. We first validate our approach against data produced using agent-based simulations. This allows us to identify the length and time scales required for an accurate measurement of the motility parameters, including tumbling frequency and swim speed. We compare different models for the run-and-tumble dynamics by accounting for speed variability at the single-cell and population level, respectively. Finally, we apply our approach to experimental data on wild-type Escherichia coli obtained using differential dynamic microscopy.
description: 10 pages, 5 figures
Formation of low-mass stars and brown dwarfs
Creators: name: Hennebelle, Patrick
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: These lectures attempt to expose the most important ideas, which have been proposed to explain the formation of stars with particular emphasis on the formation of brown dwarfs and low-mass stars. We first describe the important physical processes which trigger the collapse of a self-gravitating piece of fluid and regulate the star formation rate in molecular clouds. Then we review the various theories which have been proposed along the years to explain the origin of the stellar initial mass function paying particular attention to four models, namely the competitive accretion and the theories based respectively on stopped accretion, MHD shocks and turbulent dispersion. As it is yet unsettled whether the brown dwarfs form as low-mass stars, we present the theory of brown dwarfs based on disk fragmentation stressing all the uncertainties due to the radiative feedback and magnetic field. Finally, we describe the results of large scale simulations performed to explain the collapse and fragmentation of molecular clouds.
description: proceedings of the Evry Schatzman School on "Low-mass stars and the transition between stars and brown dwarfs" (Roscoff 2011), to appear in EAS Publication Series (Eds C.Reyl\'e, C.Charbonnel, & M.Schultheis)
Ecological lightweight design for sustainable composites : need for application of frugal engineering principles
Creators: name: Achtelik, Timo
name: Tiwari, Rajnish
Publisher: name: TUHH Universitätsbibliothek
Year: 2022
Subjects: subject: Lightweight Design
subject: Composites
subject: Sustainability
subject: Product Lifecycle
subject: frugal innovation
subject: frugal engineering
classificationCode: 330
subject: Wirtschaft

description: Lightweight design is regarded as a technological approach to engineer products in a more energy and material efficient- and, therefore, resource-saving way. In this sense, high-tech multi-materials, also referred to as composites, have become very popular for many decades due to their adaptability of material characteristics as well as high specific mechanical properties. However, composites in particular have also challenging characteristics, for example in the end-of-life of a product, as they cannot be recirculated in a typical material stream, or can only be recycled to a very limited extent (also known as “downcycling”). Alongside a common product lifecycle, we therefore describe challenges and constraints of ecological lightweight design and underpin the identified issues using semi-structured interviews with experts from the lightweight industry. We further approach the topic through the theoretical lens of frugal engineering, which critically evaluates and reduces the effective features and performances needed for an innovation thus resulting in more affordable and sustainable outcomes. Arguably, frugality might play a decisive role in ecological material transition as technology-driven innovation paradigms in search for the best material are substituted by more use case oriented engineering principles in search for the most suitable material.
Reactivity of Schrock's methylidene, Cp2Ta(=CH2)(CH3) with perfluorophenylboranes: generation of [CH2=B(C6F5)2]- and formation of novel tantalocene zwitterions
Creators: name: Cook, Kevin Sean
Publisher: name: Graduate Studies
Year: 2002
Subjects: subject: AC1 .T484 2002 C657

description: Bibliography: p. 20-23, 67-71, 126-129, 173-175, 219-220
Characterization and Control of the Run-and-Tumble Dynamics of {\it Escherichia Coli}
Creators: name: Kurzthaler, Christina
name: Zhao, Yongfeng
name: Zhou, Nan
name: Schwarz-Linek, Jana
name: Devailly, Clemence
name: Arlt, Jochen
name: Huang, Jian-Dong
name: Poon, Wilson C. K.
name: Franosch, Thomas
name: Tailleur, Julien
name: Martinez, Vincent A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We characterize the full spatiotemporal gait of populations of swimming {\it Escherichia coli} using renewal processes to analyze the measurements of intermediate scattering functions. This allows us to demonstrate quantitatively how the persistence length of an engineered strain can be controlled by a chemical inducer and to report a controlled transition from perpetual tumbling to smooth swimming. For wild-type {\it E.~coli}, we measure simultaneously the microscopic motility parameters and the large-scale effective diffusivity, hence quantitatively bridging for the first time small-scale directed swimming and macroscopic diffusion.
On the ADI method for the Sylvester Equation and the optimal-$\mathcal{H}_2$ points
Creators: name: Flagg, Garret M.
name: Gugercin, Serkan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Numerical Analysis (math.NA)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The ADI iteration is closely related to the rational Krylov projection methods for constructing low rank approximations to the solution of Sylvester equation. In this paper we show that the ADI and rational Krylov approximations are in fact equivalent when a special choice of shifts are employed in both methods. We will call these shifts pseudo H2-optimal shifts. These shifts are also optimal in the sense that for the Lyapunov equation, they yield a residual which is orthogonal to the rational Krylov projection subspace. Via several examples, we show that the pseudo H2-optimal shifts consistently yield nearly optimal low rank approximations to the solutions of the Lyapunov equations.
Nanoscale Janus Particles with Dual Protein Functionalization
Creators: name: Kadam, Reshma Sampat
name: Zilli, Marina
name: Maas, Michael
name: Rezwan, Kurosch
Publisher: name: Universität Bremen
Year: 2018
Subjects: subject: click chemistry
subject: janus nanoparticles
subject: protein functionalization
subject: silane
subject: silica
subject: sol gel
subject: Mimenima
subject: 620

description: Biofunctionalized Janus particles with tailored surface chemistry are gathering interest for applications as catalysts, multifunctional cell surface targets, nanomotors, and drug delivery systems. The dual nature of the surface chemistry of Janus particles can be exploited to immobilize drugs, cell surface targets, and/or other functional molecules on both sides of the particle surface. In this study, a model system is established for the scalable preparation of nanoscale Janus particles with dual protein functionalization with the proteins ferritin and streptavidin. 80 nm silica nanoparticles (SiNPs) modified with azidosilane are used to prepare Pickering emulsions with molten wax as the droplet phase. The azide-functionalized SiNPs on the Pickering emulsion droplets are further subjected to face-selective silanization with biotin-polyethylene glycol ethoxy silane. Afterward, ferritin is grafted on the azide-functionalized side via a click-reaction and the biotin groups are conjugated with streptavidin which is labeled with ultrasmall gold nanoparticles. In order to elucidate the advantages and limits of this approach, a detailed characterization is performed of the particles at every process step. The results show that this method represents a scalable platform for the versatile preparation of nanoscale Janus nanoparticles that can potentially be used with a wide variety of proteins.
Forecasting emergency medical service call arrival rates
Creators: name: Matteson, David S.
name: McLean, Mathew W.
name: Woodard, Dawn B.
name: Henderson, Shane G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: We introduce a new method for forecasting emergency call arrival rates that combines integer-valued time series models with a dynamic latent factor structure. Covariate information is captured via simple constraints on the factor loadings. We directly model the count-valued arrivals per hour, rather than using an artificial assumption of normality. This is crucial for the emergency medical service context, in which the volume of calls may be very low. Smoothing splines are used in estimating the factor levels and loadings to improve long-term forecasts. We impose time series structure at the hourly level, rather than at the daily level, capturing the fine-scale dependence in addition to the long-term structure. Our analysis considers all emergency priority calls received by Toronto EMS between January 2007 and December 2008 for which an ambulance was dispatched. Empirical results demonstrate significantly reduced error in forecasting call arrival volume. To quantify the impact of reduced forecast errors, we design a queueing model simulation that approximates the dynamics of an ambulance system. The results show better performance as the forecasting method improves. This notion of quantifying the operational impact of improved statistical procedures may be of independent interest.
description: Published in at http://dx.doi.org/10.1214/10-AOAS442 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Universalities in ultracold reactions of alkali polar molecules
Creators: name: Quéméner, Goulven
name: Bohn, John L.
name: Petrov, Alexander
name: Kotochigova, Svetlana
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We consider ultracold collisions of ground-state, heteronuclear alkali dimers that are susceptible to four-center chemical reactions 2 AB -> A2 + B2 even at sub-microKelvin temperature. These reactions depend strongly on species, temperature, electric field, and confinement in an optical lattice. We calculate ab initio van der Walls coefficients for these interactions, and use a quantum formalism to study the scattering properties of such molecules under an external electric field and optical lattice. We also apply a quantum threshold model to explore the dependence of reaction rates on the various parameters. We find that, among the heteronuclear alkali fermionic species, LiNa is the least reactive, whereas LiCs is the most reactive. For the bosonic species, LiK is the most reactive in zero field, but all species considered - LiNa, LiK, LiRb, LiCs, and KRb - share a universal reaction rate once a sufficiently high electric field is applied.
description: 12 pages, 9 figures
Dynamical processes in galaxy centers
Creators: name: Combes, Francoise
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: How does the gas get in nuclear regions to fuel black holes? How efficient is the feedback? The different processes to cause rapid gas inflow (or outflow) in galaxy centers are reviewed. Non axisymmetries can be created or maintained by internal disk instabilities, or galaxy interactions. Simulations and observations tell us that the fueling is a chaotic and intermittent process, with different scenarios and time-scales, according to the various radial scales across a galaxy.
description: 6 pages, 3 figures, to appear in "The Central Kiloparsec in Galactic Nuclei: Astronomy at High Angular Resolution 2011", open access Journal of Physics: Conference Series (JPCS), published by IOP Publishing
BSM models facing the recent LHCb data: A first look
Creators: name: Buras, Andrzej J.
name: Girrbach, Jennifer
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: During last decade a number of detailed analyses of flavour observables and of their correlations within more than a dozen specific BSM models have been performed at the TUM. One of the goals of these analyses was to investigate which model is capable of obtaining large mixing induced CP asymmetry in the B_s system, S_{psi phi}, and to find out what this would imply for other flavour observables. In this context also the rare decays B_{s,d}->mu^+ mu^- have been considered. In some models their branching ratios can be enhanced by orders of magnitude above the SM expectations. The recent data on S_{psi phi} and B_{s,d}-> mu^+ mu^- from the LHCb put an end to these very optimistic hopes modifying significantly the allowed patterns of deviations from SM predictions for flavour observables in concrete BSM models. We make a first semi-quantitative assessment of the most important modifications in the predictions of the BSM models in question including also recently analyzed models and taking into account the most recent lattice input. For some BSM models the LHCb data turned out to be a relief. On the other hand the SM, models with CMFV and MFV models without flavour blind phases appear to have significant difficulties in describing all Delta F=2 observables in B_{s,d} and K^0 meson systems simultaneously. We propose to regard the stringent CMFV relations between various observables as standard candels of flavour physics. The pattern of deviations from these relations may help in identifying the correct NP scenario.
description: 45 pages, 7 figures; updated talk presented by A.J.B. at the Cracow Epiphany Conference "On Present and Future of B-Physics", Cracow, Poland, January 8-11, 2012