cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A search for water masers toward extrasolar planets
Creators: name: Minier, V.
name: Lineweaver, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Water is the most common triatomic molecule in the universe and the basis of life on Earth. Astrophysical masers have been widely studied in recent years and have been shown to be invaluable probes of the details of the environment in which they are found. Water masers, for instance, are often detected toward low-mass star-forming regions. Doppler radial-velocity surveys have detected about 160 exoplanets. Observations of water masers from exoplanetary systems would give us a new detailed window through which to explore them. We present a search for water masers toward eighteen extrasolar planets using the newly upgraded Australia Telescope Compact Array at 12 mm. A sensitivity of about 25 mJy/beam and an angular resolution of about 10'' were achieved at 22.235 GHz. No maser lines are clearly observed.
description: accepted for publication in A&A
ARCHITECTURAL NOTES IN THE MEMOIRS BY ENGELBERT KAEMPFER (AZERBAIJAN, IRAN)
Creators: name: Amenzade, R.
Publisher: name: Deutsche Internationale Zeitschrift für zeitgenössische Wissenschaft
Year: 2021
Subjects: architecture
countries and cities
embassy
memoirs
engravings

description: The need to study the "literature of travel" and, in particular, Western European (ambassadors, scholars, travelers, etc.) is considerable, including memoirs, notes, reports, etc., which allows the architectural historians of Azerbaijan to add information about lost or modified architectural monuments. It should be noted that memoirs are varied in content, focus, factology, form of presentation of material, and, in this is their exceptional value; this is what makes it possible to see the image that was formed by eyewitnesses hundreds of years ago. Among the authors of the sources should be noted F. Zarre, E. Kaempfer, A. Olear, A. Jacobsthal, W. Kleis, B. Dorn, I. Barbaro, A. Contarini, A. Philippe, and others. Many of them contain no less valuable graphic material, preserving, in most cases, the original appearance of the monuments, which certainly increases their value and uniqueness.
AREA STUDIES – DIFFERENT PARADIGMS
Creators: name: Groza, M.
Publisher: name: Deutsche Internationale Zeitschrift für zeitgenössische Wissenschaft
Year: 2021
Subjects: area
region
area studies
regional studies
local lore
identity

description: The present situation of anthropology in Russia can be described as a transitional period of looking for the discipline’s distinctive identity. In this process, the important concept of “area” has to be taken into account. Though the term “area studies” has developed in the US, there is an analogue existed in the USSR as well. Both versions of area studies varied in ideological frames and created certain “area-paradigms” through which scholars have approached the world and cultures for a long time. In the United States and the Soviet Union obviously had some differences. However, despite these features and contradicting ideological fundaments, they still were focused on the same problematics embodied in the English concepts of an “area” and Russian concept of a “region” as politically rather than culturally defined entities. This article attempts not only to trace the distinctive features of both paradigms and to make a step towards rethinking of stereotypical colonial image of “areas,” but also to show the common roots of the very concept within Russian and English language anthropology.
CATHODE LENS WITH ROTATIONAL AND SEXTUPLE FIELD COMPONENTS
Creators: name: Ibrayev, A.
name: Baidullayev, T.
Publisher: name: Deutsche Internationale Zeitschrift für zeitgenössische Wissenschaft
Year: 2021
Subjects: electronic lens
focusing
equalization
aberration
sextupole
potential distribution

description: The paper deals with the problems of correction of certain types of aberrations of focusing electronic lenses and electro-optical assemblies using additional elements containing a sextupole component of the electrostatic potential distribution. Aberration correctors make it possible to significantly improve the technical characteristics of a wide class of analytical instruments and technological installations.
Simultaneous measurements of deforming Hinze-scale bubbles with surrounding turbulence
Creators: name: Masuk, Ashik Ullah Mohammad
name: Salibindla, Ashwanth K. R.
name: Ni, Rui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We experimentally investigate the breakup mechanisms and probability of Hinze-scale bubbles in turbulence. The Hinze scale is defined as the critical bubble size based on the critical mean Weber number, across which the bubble breakup probability was believed to have an abrupt transition from being dominated by turbulence stresses to being suppressed completely by the surface tension. In this work, to quantify the breakup probability of bubbles with sizes close to the Hinze scale and to examine different breakup mechanisms, both bubbles and their surrounding tracer particles were simultaneously tracked. From the experimental results, two Weber numbers, one calculated from the slip velocity between the two phases and the other one acquired from local velocity gradients, are separated and fitted with models that can be linked back to turbulence characteristics. Moreover, we also provide an empirical model to link bubble deformation to the two Weber numbers by extending the relationship obtained from potential flow theory. The proposed relationship between bubble aspect ratio and the Weber numbers seems to work consistently well for a range of bubble sizes. Furthermore, the time traces of the bubble aspect ratio and the two Weber numbers are connected using the linear forced oscillator model. Finally, having access to the distributions of these two Weber numbers provides a unique way to extract the breakup probability of bubbles with sizes close to the Hinze scale.
Homologous flaring activity over a sunspot light bridge in an emerging active region
Creators: name: Louis, Rohan E.
name: Thalmann, Julia K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Sunspot light bridges are known to exhibit a variety of dynamic and persistent phenomena such as surges, small-scale jets etc. in the chromosphere and transition region. While it has generally been proposed that magnetic reconnection is responsible for this small-scale dynamism, persistent flaring activity lasting several hours from the same spatial location on a sunspot light bridge, has rarely been reported. We combine observations from the Atmospheric Imaging Assembly and the Helioseismic Magnetic Imager on board the Solar Dynamics Observatory to investigate homologous flaring activity over a small sunspot light bridge in an emerging flux region. The homologous flares all produced broad, collimated jets, including a B6.4 class flare. The jets rise at a speed of about 200 km/s, reach projected heights of about 98 Mm, and emerge from the same spatial location for nearly 14 hrs, after which they cease completely. A non-linear force free extrapolation of the photospheric magnetic field shows a low-lying flux rope connecting the light bridge to a remote opposite-polarity network. The persistent flares occur as a result of the rapid horizontal motion of the leading sunspot that causes the relatively vertical magnetic fields in the adjacent umbra to reconnect with the low-lying flux rope in the light bridge. Our results indicate that the flaring ceases once the flux rope has lost sufficient twist through repeated reconnections.
description: Accepted for publication in The Astrophysical Journal Letters, 8 pages, 5 figures, 1 animation
Doping and energy dependent microwave conductivity of kinetic energy driven superconductors with extended impurities
Creators: name: Wang, Zhi
name: Guo, Huaiming
name: Feng, Shiping
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Within the framework of the kinetic energy driven superconducting mechanism, the effect of the extended impurity scatterers on the quasiparticle transport of cuprate superconductors in the superconducting state is studied based on the nodal approximation of the quasiparticle excitations and scattering processes. It is shown that there is a cusplike shape of the energy dependent microwave conductivity spectrum. At low temperatures, the microwave conductivity increases linearly with increasing temperatures, and reaches a maximum at intermediate temperature, then decreases with increasing temperatures at high temperatures. In contrast with the dome shape of the doping dependent superconducting gap parameter, the minimum microwave conductivity occurs around the optimal doping, and then increases in both underdoped and overdoped regimes.
description: 9 pages, 3 figures
Modelling carbon oxidation in pulp mill activated sludge systems : determining model parameters
Creators: name: Stanyer, Deborah Jane
Publisher: name: University of British Columbia
Year: 2009

description: To predict the behavior of municipal wastewater treatment facilities, the Activated Sludge Model No. 1 is often used. This model has also served as the basis for the development of many other models to determine the behavior of activated sludge systems treating municipal wastewater, and has also been extended to the development of a model for petrochemical activated sludge treatment systems. Application of the model requires the determination of kinetic parameters and wastewater composition using continuous culture laboratory scale activated sludge reactors. These systems are laborious to operate and are equipment intensive. Activated sludge systems are a commonly used method of secondary treatment of pulp mill effluents in British Columbia. The application of the Activated Sludge Model No. 1 has not been extended previously to predict the performance of carbon oxidation in activated sludge systems treating pulp mill effluent. The objective of this study was to establish a database of experimental information on the characteristics of activated sludge systems treating bleached Kraft pulp mill wastewater using simple on-site batch test methods. Batch test methods involving respirometry and chemical oxygen demand measurements were successful in generating a data set of wastewater and biomass characteristics comparable to those found in the literature. Development of a dynamic mechanistic model based on the data generated in this study will provide a framework for studying the behavior of pulp mill activated sludge systems and provide a basis for planning further experimentation.
ЙЎЛ ҲАРАКАТИ ҚОИДАЛАРИНИ БУЗИШ БИЛАН БОҒЛИҚ АЙРИМ МАЪМУРИЙ ҲУҚУҚБУЗАРЛИКЛАРНИ МАЛАКАЛАШНИ ЎЗГА ХОС ХУСУСИЯТЛАРИ
Creators: name: Бобобеков, Баҳодир
Publisher: name: Zenodo
Year: 2024

description: Йўл ҳаракати хавфсизлигини таъминлаш турли ташкилий чора-тадбирларларлардан ташкил топган бўлиб, улари яхлит тизимга келтириш, ўзар мувофиқлаштитиш муҳим аҳамиятга эга ҳисобланади. Ўзбекистон Республикаси Вазирлар Маҳкамасининг 2018 йил 19 майдаги 377-сон қарори билан тасдиқланган 2018–2022 йилларда Ўзбекистон Республикасида  йўл  ҳаракати  хавфсизлигини  таъминлаш  концепцияси  бу  борада муҳим ўрин тутади.
Topological Kagome magnet Co3Sn2S2 thin flakes with high electron mobility and large anomalous Hall effect
Creators: name: Tanaka, M.
name: Fujishiro, Y.
name: Mogi, M.
name: Kaneko, Y.
name: Yokosawa, T.
name: Kanazawa, N.
name: Minami, S.
name: Koretsune, T.
name: Arita, R.
name: Tarucha, S.
name: Yamamoto, M.
name: Tokura, Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetic Weyl semimetals attract considerable interest not only for their topological quantum phenomena but also as an emerging materials class for realizing quantum anomalous Hall effect in the two-dimensional limit. A shandite compound Co3Sn2S2 with layered Kagome-lattices is one such material, where vigorous efforts have been devoted to synthesize the two-dimensional crystal. Here we report a synthesis of Co3Sn2S2 thin flakes with a thickness of 250 nm by chemical vapor transport method. We find that this facile bottom-up approach allows the formation of large-sized Co3Sn2S2 thin flakes of high-quality, where we identify the largest electron mobility (~2,600 cm2V-1s-1) among magnetic topological semimetals, as well as the large anomalous Hall conductivity (~1,400 Ω-1cm-1) and anomalous Hall angle (~32 %) arising from the Berry curvature. Our study provides a viable platform for studying high-quality thin flakes of magnetic Weyl semimetal and stimulate further research on unexplored topological phenomena in the two-dimensional limit.
Sur le nombre d'intervalles dans les treillis de Tamari
Creators: name: Chapoton, Frédéric
Publisher: name: arXiv
Year: 2006
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A15, 06A20

description: We enumerate the intervals in the Tamari lattices. For this, we introduce an inductive description of the intervals. Then a notion of "new interval" is defined and these are also enumerated. A a side result, the inverse of two special series is computed in a group of tree-indexed series.
description: 17 pages, 5 figures
НИЗОЛИ ОИЛАЛАР БИЛАН ИШЛАШ ФАОЛИЯТИДА ПРОФИЛАКТИКАНИНГ ЎРНИ
Creators: name: Омонов, Нурилла
Publisher: name: Zenodo
Year: 2024

description: Ўзбек оиласи ўзида қадимий маънавий қадрият ва анъаналаримизни, удум ва расм-русумларимизни, маънавий, маданий меросимизни сақлаб келган ва келмоқда. Шарқ халқлари ўзлигини англаш учун ўз миллий қадриятлари ва миллий маданиятини асраб-авайлабгина юксак маънавиятга эга бўлади. Ўзбек халқида ўз қадриятлари ва ўзига хос маънавиятини шакллантириш ва юксалтиришда оила етакчи ҳисобланади.
ENHANCING VOCABULARY DEVELOPMENT THROUGH MASS MEDIA
Creators: name: Pyagay, A.
name: Tsay, E.
Publisher: name: Deutsche Internationale Zeitschrift für zeitgenössische Wissenschaft
Year: 2021
Subjects: vocabulary
competence
teaching
English
mass media

description: Vocabulary acquisition is related to how people expand the number of words they understand as they learn a new language. Knowledge of words in a second foreign language (SFL) is essential for the learner to understand the written text well and to be able to convey basic ideas using vocabulary. Mass media are playing an essential role in human life. This article focuses on features of mass media to be used by teachers for improving vocabulary competence of students and the opportunities of mass media in developing English vocabulary.
PhD - The Shape of Time: Affective Weathering and Material Mutability
Creators: name: Newton, Stephen
Publisher: name: The Australian National University
Year: 2019

description: THE SHAPE OF TIME: A PRACTICE-LED INQUIRY INTO AFFECTIVE WEATHERING AND MATERIAL MUTABILITY This practice-led research project investigates weathering as a sculptural process and studies how changes in material can embody memory and suggest place. The idea developed in connection to Moreton Island, a small sand island off the east coast of Australia, shaped by natural phenomena and the elements. In the research Moreton Island is a departure point underpinning a philosophy of change and impermanency. The intention of the project is to engage time-based, phenomenal methodologies with wood as a way to generate unexpected and unplanned forms. This approach to making sculpture circumvents ideas about the art object and its agency. In contrast to a dualistic model of making and perception, the research in this project is underpinned by the Japanese Mono-ha philosophy, meaning 'school of things'. The Mono-ha philosophy rejects representation in favour of revealing material properties and conditions. The results of this research project are discrete groups of sculpture in wood which have been affected by sun, wind, fire, water, abrasion and oxidation. These natural processes involve maker, tool and material in a correspondence which attempts to shape sculpture devoid of representation and referents. The resulting sculptures are indications of time and change, ongoing systems trailing material history and provenance. They are forms which invite one to reflect on the nature of time, memory and place.
2CP: Decentralized Protocols to Transparently Evaluate Contributivity in Blockchain Federated Learning Environments
Creators: name: Cai, Harry
name: Rueckert, Daniel
name: Passerat-Palmbach, Jonathan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Federated Learning harnesses data from multiple sources to build a single model. While the initial model might belong solely to the actor bringing it to the network for training, determining the ownership of the trained model resulting from Federated Learning remains an open question. In this paper we explore how Blockchains (in particular Ethereum) can be used to determine the evolving ownership of a model trained with Federated Learning. Firstly, we use the step-by-step evaluation metric to assess the relative contributivities of participants in a Federated Learning process. Next, we introduce 2CP, a framework comprising two novel protocols for Blockchained Federated Learning, which both reward contributors with shares in the final model based on their relative contributivity. The Crowdsource Protocol allows an actor to bring a model forward for training, and use their own data to evaluate the contributions made to it. Potential trainers are guaranteed a fair share of the resulting model, even in a trustless setting. The Consortium Protocol gives trainers the same guarantee even when no party owns the initial model and no evaluator is available. We conduct experiments with the MNIST dataset that reveal sound contributivity scores resulting from both Protocols by rewarding larger datasets with greater shares in the model. Our experiments also showed the necessity to pair 2CP with a robust model aggregation mechanism to discard low quality inputs coming from model poisoning attacks.
Plan de mercadeo internacional Grupo Recordar
Creators: name: Abril Rivera, Jessica Alejandra
name: Rozo Acosta, Luz Fany
name: Luz Fany, María Paula
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Organización - Estudios de caso
subject: Estructura organizacional - Aspectos sociales
subject: Productos y servicios - Organización
subject: Grupo Recordar
subject: Funerario
subject: Exequial
subject: Previsión

description: A lo largo de su historia, Grupo Recordar ha enfrentado desafíos y ha logrado importantes éxitos. Su capacidad para adaptarse a los cambios del mercado, implementar nuevas estrategias y mantenerse a la vanguardia de la tecnología ha sido clave para su éxito continuo. En los siguientes apartados, se explorarán en detalle algunas de las problemáticas y éxitos más relevantes de la empresa, destacando su capacidad de innovación y su compromiso con la excelencia en el servicio. A lo largo de este estudio se evaluará si la solvencia económica que muestra en sus estados financieros y la trayectoria en la industria funeraria en Colombia, son determinantes para examinar la oportunidad de expandir sus operaciones a un nuevo país, y si es así tener las consideraciones necesarias para lograrlo.
description: Throughout its history, Grupo Recordar has faced challenges and achieved important successes. Their ability to adapt to market changes, implement new strategies and stay on the cutting edge of technology has been key to their continued success. In the following sections, some of the company's most relevant problems and successes will be explored in detail, highlighting its capacity for innovation and its commitment to excellence in service. Throughout this study, it will be evaluated whether the economic solvency shown in its financial statements and the trajectory in the funeral industry in Colombia are determinants to examine the opportunity to expand its operations to a new country, and if so, take the necessary considerations. necessary to achieve it.
FEMINISM AS A DYNAMIC SYSTEM FOR THE DEVELOPMENT OF MODERN RUSSIAN SOCIETY
Creators: name: Frolova, L.
Publisher: name: Deutsche Internationale Zeitschrift für zeitgenössische Wissenschaft
Year: 2021
Subjects: feminism
emancipation
suffragism
feminist movement
women's question
gender
women's rights

description: This essay defines the concept of feminism, examines the historical roots of it, its main stages and movements, analysis of feminism as a socio-political theory, the peculiarities of the development of feminism in Russia and in the world, the influence of art and media on the awareness of large masses about the ideas of feminism and their perception at the present period, as well as quantitative and qualitative analysis of the representation of women in these areas.
Spin coefficients for four-dimensional neutral metrics, and null geometry
Creators: name: Law, Peter R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53B30, 53C50

description: Notation for spin coefficients for metrics of neutral signature in four dimensions is introduced. The utility and interpretation of spin coefficients is explored through themes in null geometry familiar from (complex) general relativity. Four-dimensional Walker geometry is exploited to provide examples and the generalization of the real neutral version of Plebañski's (1975) second heavenly equation to certain Walker geometries given in Law and Matsushita [16] is extended further.
description: 50 pages; minor typos corrected in v2
THE RECOMMENDATIONS FOR THE IMPLEMENTATION OF THE CONTEXTUAL EDUCATION IN PROFESSIONAL PREPARATION OF FUTURE BACHELORS OF SCIENCE IN LAW
Creators: name: Pasenko, I.
Publisher: name: Deutsche Internationale Zeitschrift für zeitgenössische Wissenschaft
Year: 2021
Subjects: bachelors of science in law
competences
contextual education
pedagogical conditions
professional training

description: The article provides methodological recommendations for the implementation of the proposed model of contextual education in professional preparation of future bachelors of science in law as a manifestation of the theoretical theories described above regarding the practical activities of educational institutions, thus completing the training system with practically-oriented materials. The essence of the recommendations reveals the author’s views of the prospects for the future development of the model and technology for the professional competence of future specialists and the possibility of their involvement in a real-life training system on the principles of contextual education.
Letter from J.H. Bryan to James Goldie. December 9, 1908
Creators: name: Bryan, J.H.
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to James Goldie from J.H. Bryan in Louisville Kentucky. dated December 9, 1908; written on J.H. Bryan & Co. letterhead. Letter is of personal nature, updating Goldie on his life and asking about Goldie's life.
Semiclassics of the Chaotic Quantum-Classical Transition
Creators: name: Greenbaum, Benjamin D.
name: Habib, Salman
name: Shizume, Kosuke
name: Sundaram, Bala
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We elucidate the basic physical mechanisms responsible for the quantum-classical transition in one-dimensional, bounded chaotic systems subject to unconditioned environmental interactions. We show that such a transition occurs due to the dual role of noise in regularizing the semiclassical Wigner function and averaging over fine structures in classical phase space. The results are interpreted in the novel context of applying recent advances in the theory of measurement and open systems to the semiclassical quantum regime. We use these methods to show how a local semiclassical picture is stabilized and can then be approximated by a classical distribution at later times. The general results are demonstrated explicitly via high-resolution numerical simulations of the quantum master equation for a chaotic Duffing oscillator.
description: 16 pages, 7 Figures, Submitted to Phys Rev E
Penetration of composite laminates by conical indenters and projectiles
Creators: name: Sanders, Timothy A.
Publisher: name: University of British Columbia
Year: 2009

description: Impact resistance of composite materials is a primary concern where human lives are at risk. To design against impact the mechanisms by which these composites defeat projectiles becomes important to understand. The main focus of this thesis has been understanding the initiation and progression of damage in both carbon fibre reinforced polymer (CFRP) and glass fibre reinforced polymer (GFRP) composites. Static penetration tests were performed on CFRP laminates while both instrumented ballistic and static penetration tests were performed on GFRP laminates. The projectiles used for this study were cylindro-conical and the damage mechanisms were identified through detailed micro-graphs. Detailed ballistic force-displacement curves were obtained for GFRP laminates using a measurement system developed during the course of this thesis. Using these ballistic forcedisplacement curves it was then possible to compare the static and ballistic response of the GFRP laminates. Good agreement was found and as far as the author is aware, it is also the first time that such a detailed comparison has been made. The combination of damage progression and force-displacement curves provides the necessary input data for the analytical and numerical models currently under development at UBC.
Offensive alliances in cubic graphs
Creators: name: Rodriguez, J. A.
name: Sigarreta, J. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C69, 15C05

description: An offensive alliance in a graph $Γ=(V,E)$ is a set of vertices $S\subset V$ where for every vertex $v$ in its boundary it holds that the majority of vertices in $v$'s closed neighborhood are in $S$. In the case of strong offensive alliance, strict majority is required. An alliance $S$ is called global if it affects every vertex in $V\backslash S$, that is, $S$ is a dominating set of $Γ$. The global offensive alliance number $γ_o(Γ)$ (respectively, global strong offensive alliance number $γ_{\hat{o}}(Γ)$) is the minimum cardinality of a global offensive (respectively, global strong offensive) alliance in $Γ$. If $Γ$ has global independent offensive alliances, then the \emph{global independent offensive alliance number} $γ_i(Γ)$ is the minimum cardinality among all independent global offensive alliances of $Γ$. In this paper we study mathematical properties of the global (strong) alliance number of cubic graphs. For instance, we show that for all connected cubic graph of order $n$, $$\frac{2n}{5}\le γ_i(Γ)\le \frac{n}{2}\le γ_{\hat{o}}(Γ)\le \frac{3n}{4} \le γ_{\hat{o}}({\cal L}(Γ))=γ_{o}({\cal L}(Γ))\le n,$$ where ${\cal L}(Γ)$ denotes the line graph of $Γ$. All the above bounds are tight.
The effect of lipids on protein structure and function
Creators: name: Schumann-Gillett, Alexandra
Publisher: name: The Australian National University
Year: 2019

description: Lipids and proteins are integral to all organisms' cellular structure and function. These molecules not only physically encase the contents of the cell; they also interact with each other to serve functional roles, such as signalling. As protein science has become an established field, the scientific community is becoming increasingly aware of the multi-faceted roles that lipids play in cells, and the implications of their interactions with proteins. Molecular dynamics simulation techniques are ideal tools to use to study these processes, as they allow the user to tease apart the molecular interactions in atomic detail and at picosecond to microsecond timescales-spatial and temporal scales that are largely inaccessible to experiments. Here, I used molecular dynamics simulation techniques to understand how lipids affect biological systems. I have studied the following: oxidised phospholipids in bilayers; bioactive lipids and the membrane protein, GlyT2; the lipid PI3P and the protein, collybistin; and phospholipids and drug transport in the multidrug transport protein, P-glycoprotein (P-gp). Firstly, I found that relatively small concentrations of oxidised phospholipids can alter the biophysical properties of a bilayer, and cholesterol can modulate these effects. Second, so-called "bioactive" lipids can alter the function of the neurotransmitter transporter protein, GlyT2, without altering the properties of the surrounding membrane. I also identified an allosteric binding site for these lipids on GlyT2. Third, a mutation in the GDP-GTP exchange factor, collybistin, influences the conformations and shape of the binding site for the phosphoinositide PI3P. Finally, I found that the ABC transporter, P-gp, has binding sites for chemically diverse compounds in its membrane-embedded domains. Overall, this thesis presents novel insights into how different lipids behave in cellular environments, whether that is within a membrane or when interacting with distinct proteins. My work highlights the structural and functional roles that lipids play in biology, which are still gaining research popularity and largely remain to be explored, and reinforces the necessity of studying biological lipids.
The Nature of Blue Early-Type Galaxies in the Goods Fields
Creators: name: Lee, Joon Hyeop
name: Lee, Myung Gyoon
name: Hwang, Ho Seong
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a study of the nature of the blue early-type galaxies (BEGs) in the GOODS north and south fields using the GOODS HST/ACS archival data. Using visual inspection, we have selected 58 BEGs and 113 normal red early-type galaxies (REGs) in the sample of 1,949 galaxies with spectroscopic redshifts. We find that the BEGs are generally bluer, fainter, and less-massive than the REGs, although a few BEGs are exceptionally bright and massive. The number fraction of the BEGs to total early-type galaxies is almost constant ($\sim0.3$) at $z \le 1.1$. In addition, we find that the size of the BEGs in given redshift bin decrease as redshift decreases. The BEGs look similar to the REGs in the images and surface brightness profiles. However, at least 27 BEGs show traces of tidal disturbances in their fine structures: elongated cores, off-centered cores, asymmetric internal color distributions, tidally distorted outer structures, collisional rings, or very nearby companions. Twenty-one BEGs are detected in the X-ray bands and eleven of them are as luminous as $L_{0.5-10 {\rm keV}} \ge 10^{43.5} {\rm erg~s}^{-1}$, indicating the existence of AGNs in their centers. These results show that at least a half of the BEGs may be descendants of mergers/interacting-galaxies and that at least a quarter of the BEGs may be AGN-host galaxies. The BEGs may evolve into REGs, and the size evolution of the BEGs is consistent with the galactic \emph{downsizing} scenario.
description: 26 pages, 17 figures, To appear in the Astrophysical Journal, Oct 2006
Plan de mercadeo internacional Seguros Bolívar
Creators: name: Rubio Corredor, Jenifer Natalia
name: Bermúdez, Angie Maritza
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Plan de mercadeo
subject: Seguros
subject: Empresa
subject: Estados financieros

description: A continuación, se presenta un plan de mercadeo internacional para Seguros Bolívar que incluye un análisis estratégico tanto interno como del entorno. Este análisis aborda las razones clave para internacionalizar la empresa, identificando su fuente de valor y destacando los beneficios de expandirse a mercados internacionales. El plan abarca desde la definición de objetivos a corto y largo plazo hasta las estrategias propuestas para alcanzar dichos objetivos. Se detalla el modelo de internacionalización que la compañía adoptará, y se describen las estrategias de precio y producto diseñadas para cada mercado objetivo. Asimismo, se considera el impacto que estas estrategias tendrán en los estados financieros de la empresa, asegurando que la expansión se realice de manera rentable y sostenible. Este plan integral no solo busca posicionar a Seguros Bolívar en nuevos mercados, sino también fortalecer su presencia internacional. adaptando su oferta a las necesidades y características de cada región. En resumen, el plan de mercadeo internacional ofrece una hoja de ruta clara y detallada para la expansión de Seguros Bolívar, garantizando un crecimiento sólido y una consolidación exitosa en el ámbito global.
description: Below is an international marketing plan for Seguros Bolívar, which includes a strategic analysis of both the infernal and externa! environment. This analysis addresses the key reasons for internationalizing the company. identifying its value proposition, and highlighting the benefits of expanding into international markets. The plan encompasses the definition of both short- and long-term objectives and the proposed strategies to achieve these goals. lt details the internationalization model the company will adopt and describes the pricing and product strategies designed for each target market. Additionally, the impact of these strategies on the company's financia! statements is considered, ensuring that the expansion is carried out in a profitable and sustainable manner. This comprehensive plan not only aims to position Seguros Bolívar in new markets but also to strengthen its international presence by adapting its offerings to the needs and characteristics of each region. In summary, the international marketing plan provides a clear and detailed roadmap for the expansion of Seguros Bolívar. ensuring salid growth and successful consolidation in the global market.
Letter from [Frank] Hewer to [James] Goldie, December 11, 1908
Creators: name: Hewer, Frank Algernon
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to James Goldie from Frank Hewer, dated December 11, 1908; written on The Rainbow Ranche letterhead. The letter mentions that "Eakins of the Hotel" is building a house on his (Hewer's) lot- a two story, and that another man, Prixton, has built a house on the lots East of Eakins.
Instantons, monopoles, vortices, and the Faddeev-Popov operator eigenspectrum
Creators: name: Maas, Axel
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The relation of confinement scenarios based on topological configurations and the Gribov-Zwanziger scenario is examined. To this end the eigenspectrum of the central operator in the Gribov-Zwanziger scenario, the Faddeev-Popov operator, is studied in topological field configurations. It is found that instantons, monopoles, and vortices contribute to the spectrum in a qualitatively similar way. Especially, all give rise to additional zero-modes and thus can contribute to the Gribov-Zwanziger confinement mechanism. Hence a close relation between these confinement scenarios likely exists.
description: 4 pages, talk presented at the 18th international IUPAP conference on few-body problems in physics, Santos, Brazil, 21st-26th of August 2006; submitted to the proceedings
Discussion of Xaradó, iiwáa tuuév, food preservation
Creators: name: Escalanti, Jessie W.
name: Halpern, Abraham M.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: yum

description: 2 WAV files. Side B, food preservation. Date range corresponds to sides A and B, respectively. For associated notebook, see Margaret Langdon Papers (Bancroft Library), carton 10, folder 21. Digitization by The Audio Archive (Burlingame, California).
ПРОФИЛАКТИКА ИНСПЕКТОРИНИНГ ТАШКИЛОТЛАР ВА ФУҚАРОЛАР БИЛАН ЎЗАРО ҲАМКОРЛИК ЙЎНАЛИШЛАРИ
Creators: name: Нарзиев, Шахзодбек
name: Узакбергенова, Улмекен
Publisher: name: Zenodo
Year: 2024

description: Халқимизнинг муқаддас ва азалий, авлоддан-авлодга ўтиб келаётган, улуғ аждодларимиз ҳаёти ва фаолиятининг асосий мезони ҳамда инсонийлик билан йўғрилган ўзбек халқи маънавиятининг ажралмас қисми бўлган ватанпарварлик, халқпарварлик, адолат, ҳақиқат, инсонпарварлик, кечиримлилик, раҳмдиллик, меҳр-шафқат, бағрикенглик, инсофу-диёнат каби хислатлари миллий урф-одатларимиз замирида мужассам бўлган.
Generalized Chaotic Synchronizationin Coupled Ginzburg-Landau Equations
Creators: name: Koronovskii, A. A.
name: Popov, P. V.
name: Hramov, A. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Generalized synchronization is analyzed in unidirectionally coupled oscillatory systems exhibiting spatiotemporal chaotic behavior described by Ginzburg-Landau equations. Several types of coupling betweenthe systems are analyzed. The largest spatial Lyapunov exponent is proposed as a new characteristic of the state of a distributed system, and its calculation is described for a distributed oscillatory system. Partial generalized synchronization is introduced as a new type of chaotic synchronization in spatially nonuniform distributed systems. The physical mechanisms responsible for the onset of generalized chaotic synchronization in spatially distributed oscillatory systems are elucidated. It is shown that the onset of generalized chaotic synchronization is described by a modified Ginzburg-Landau equation with additional dissipation irrespective of the type of coupling. The effect of noise on the onset of a generalized synchronization regime in coupled distributed systems is analyzed.
description: 12 pages
Handwritten Script Identification from Text Lines
Creators: name: Singh, Pawan Kumar
name: Chatterjee, Iman
name: Sarkar, Ram
name: Nasipuri, Mita
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In a multilingual country like India where 12 different official scripts are in use, automatic identification of handwritten script facilitates many important applications such as automatic transcription of multilingual documents, searching for documents on the web/digital archives containing a particular script and for the selection of script specific Optical Character Recognition (OCR) system in a multilingual environment. In this paper, we propose a robust method towards identifying scripts from the handwritten documents at text line-level. The recognition is based upon features extracted using Chain Code Histogram (CCH) and Discrete Fourier Transform (DFT). The proposed method is experimented on 800 handwritten text lines written in seven Indic scripts namely, Gujarati, Kannada, Malayalam, Oriya, Tamil, Telugu, Urdu along with Roman script and yielded an average identification rate of 95.14% using Support Vector Machine (SVM) classifier.
description: 12 pages, 4 figures, conference
Plan de marketing internacional VITAESTETICA
Creators: name: Lemus Blanco, Brahian Camilo
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Estructura - Organización
subject: Administración de mercadeo - Estudios de caso
subject: Organización - Aspectos socioeconómicos
subject: Plan de mercadeo
subject: Administración
subject: Centro de estética
subject: estados financieros

description: Vita estética es un emprendimiento empresarial, encargada de realizar procedimientos estéticos de belleza para hombres y mujeres en Colombia, el cual por medio de un plan de mercadeo internacional nos permite realizar un análisis estratégico interno como externo donde abordamos unos objetivos a corto y largo plazo, así mismo una razón para internacionalizarnos en ecuador como primera instancia el cual adoptamos estrategias de precio de y producto para el mercado objetivo. De tal manera que estas estrategias favorezcan los estados financieros de la empresa, asegurando la expansión e internacionalización de VITAESTETICA. En general este plan de mercadeo internacional nos permite tener un fortalecimiento internacional adaptándonos nuestra oferta a las necesidades de cada región, esto permitiendo y garantizando un crecimiento solido y exitoso a nivel global.
description: Vita aesthetics is a business venture, in charge of performing aesthetic beauty procedures for men and women in Colombia, which through an international marketing plan allows us to carry out an internal and external strategic analysis where we address short and long term objectives. Likewise, a reason to internationalize in Ecuador as the first instance in which we adopt price and product strategies for the target market. In such a way that these strategies favor the financial statements of the company, ensuring the expansion and internationalization of VITAESTETICA. In general, this international marketing plan allows us to have international strengthening by adapting our offer to the needs of each region, allowing and guaranteeing solid and successful growth at a global level.
Approximating the ground state of fermion system by multiple determinant states: matching pursuit approach
Creators: name: Jie, Quanlin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a simple and stable numerical method to approximate the ground state of a quantum many-body system by multiple determinant states. This method searches these determinant states one by one according to the matching pursuit algorithm. The first determinant state is identical to that of the Hartree-Fock theory. Calculations for two-dimensional Hubbard model serve as a demonstration.
description: 5 Pages, 1 figure
A multiscale mathematical model of cancer, and its use in analyzing irradiation therapies
Creators: name: Ribba, Benjamin
name: Colin, Thierry
name: Schnell, Santiago
Publisher: name: arXiv
Year: 2006
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: Background: Radiotherapy outcomes are usually predicted using the Linear Quadratic model. However, this model does not integrate complex features of tumor growth, in particular cell cycle regulation. Methods: In this paper, we propose a multiscale model of cancer growth based on the genetic and molecular features of the evolution of colorectal cancer. The model includes key genes, cellular kinetics, tissue dynamics, macroscopic tumor evolution and radiosensitivity dependence on the cell cycle phase. We investigate the role of gene-dependent cell cycle regulation in the response of tumors to therapeutic irradiation protocols. Results: Simulation results emphasize the importance of tumor tissue features and the need to consider regulating factors such as hypoxia, as well as tumor geometry and tissue dynamics, in predicting and improving radiotherapeutic efficacy. Conclusion: This model provides insight into the coupling of complex biological processes, which leads to a better understanding of oncogenesis. This will hopefully lead to improved irradiation therapy.
description: 19 pages, 14, figures. Article available at http://www.tbiomed.com/content/3/1/7 Copyright 2006 Ribba et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
IDSWG Oncology Newsletter: Issue January 1, 2024
Creators: name: Ma, Haijun
name: Zhao, Fengyu
name: He, Philip
name: Fernandes, Laura
name: Fu, Haoda
Publisher: name: Zenodo
Year: 2023

description: This is the newsletter series for Dashu IDSWG Oncology Team Working Group. In this issue, the following panels are included: (1) Notes from the chairs; (2) KOL Message; (3) WG Updates; (4) FDA NDA/BLA recent approvals in oncology; and (5) Biostat Byte.
Lagrangian Reachtubes: The Next Generation
Creators: name: Gruenbacher, Sophie
name: Cyranka, Jacek
name: Lechner, Mathias
name: Islam, Md. Ariful
name: Smolka, Scott A.
name: Grosu, Radu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We introduce LRT-NG, a set of techniques and an associated toolset that computes a reachtube (an over-approximation of the set of reachable states over a given time horizon) of a nonlinear dynamical system. LRT-NG significantly advances the state-of-the-art Langrangian Reachability and its associated tool LRT. From a theoretical perspective, LRT-NG is superior to LRT in three ways. First, it uses for the first time an analytically computed metric for the propagated ball which is proven to minimize the ball's volume. We emphasize that the metric computation is the centerpiece of all bloating-based techniques. Secondly, it computes the next reachset as the intersection of two balls: one based on the Cartesian metric and the other on the new metric. While the two metrics were previously considered opposing approaches, their joint use considerably tightens the reachtubes. Thirdly, it avoids the "wrapping effect" associated with the validated integration of the center of the reachset, by optimally absorbing the interval approximation in the radius of the next ball. From a tool-development perspective, LRT-NG is superior to LRT in two ways. First, it is a standalone tool that no longer relies on CAPD. This required the implementation of the Lohner method and a Runge-Kutta time-propagation method. Secondly, it has an improved interface, allowing the input model and initial conditions to be provided as external input files. Our experiments on a comprehensive set of benchmarks, including two Neural ODEs, demonstrates LRT-NG's superior performance compared to LRT, CAPD, and Flow*.
description: 12 pages, 14 figures