cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Persönliche Schwelle für die Inanspruchnahme medizinischer Hilfe
Creators: name: Michiels-Corsten, M.
name: Bösner, S.
name: Donner-Banzhoff, N.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Entscheidungsfindung
subject: kognitive Prozesse
subject: kontinuierliche Betreuung
subject: 610 Medical sciences; Medicine

description: Hintergrund: Die erlebte Anamnese und die kontinuierliche Patientenbetreuung bilden einen Kernpunkt der Allgemeinmedizin. Häufig wurde beschrieben, dass Entscheidungsprozesse in der Allgemeinmedizin durch eine langjährige Arzt-Patienten-Beziehung beeinflusst werden. Während die kontinuierliche[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
Simplicially driven simple contagion
Creators: name: Lucas, Maxime
name: Iacopini, Iacopo
name: Robiglio, Thomas
name: Barrat, Alain
name: Petri, Giovanni
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Single contagion processes are known to display a continuous transition from an epidemic-free phase at low contagion rates to the epidemic state for rates above a critical threshold. This transition can become discontinuous when two simple contagion processes are coupled in a bi-directional symmetric way. However, in many cases, the coupling is not symmetric and the processes can be of a different nature. For example, risky social behaviors -- such as not wearing masks or engaging in large gatherings -- can affect the spread of a disease, and their adoption dynamics via social reinforcement mechanisms are better described by complex contagion models, rather than by the simple contagion paradigm, which is more appropriate for disease spreading phenomena. Motivated by this example, we consider a simplicial contagion (describing the adoption of a behavior) that uni-directionally drives a simple contagion (describing a disease propagation). We show that, above a critical driving strength, such driven simple contagion can exhibit both discontinuous transitions and bi-stability, which are instead absent in standard simple contagions. We provide a mean-field analytical description of the phase diagram of the system, and complement the results with Markov-chain simulations. Our results provide a novel route for a simple contagion process to display the phenomenology of a higher-order contagion, through a driving mechanism that may be hidden or unobservable in many practical instances.
description: 10 pages, 7 figures. I.I. and M.L. contributed equally to this work. A.B and G.P. jointly supervised this work
Assessment of Employees's Training Practice the Case Study of Ethio Telecom
Creators: name: Tadele, Dagim
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: This study aims to explore the current practices that are encountered during the process of training in ethio telecom. It is a description of all the issues concerning Training practices in terms of how the training process is conducted (how training needs are assessed, how Training is designed and set objectives, how training is delivered and how training programs are evaluated); This study aims to investigate problems and challenges that face training activities and searches for practical suggestions to improve the effectiveness of these activities. The research has adopted a multi-methods approach. The data were gathered through a combination of both semi-structured interviews with 12 top and middle level managers and a questionnaire addressed to the randomly selected employees of the organization who have better knowledge and are more experienced about the organization. A purposive sampling method was used in choosing the participants of this study. In total, 12 top and middle managers and 355 employees took part in the study. The study reveals that, mainly in the organization, there is an absence of systematic employee training needs assessment and because of the low commitment of top managers; there is ineffective procedures for evaluation. The company highly depend only on off-the-job training delivery methods, namely lectures methods. To improve training effectiveness the researcher recommends many actions and decisions which need to be undertaken. Finally; ethio telecom should have to conduct each and every process properly. The existence of training programs in place by itself doesn't assure the effectiveness of the training program unless it is supported by systematic training process. Therefore, since each processes are interrelated they need to be conducted with due care. On time delivery of the training should also be given the necessary attention in order to make the training practice effective and productive.
Gauge-invariant coefficients in perturbative quantum gravity
Creators: name: Bastianelli, Fiorenzo
name: Bonezzi, Roberto
name: Melis, Marco
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Heat kernel methods are useful for studying properties of quantum gravity. We recompute here the first three heat kernel coefficients in perturbative quantum gravity with cosmological constant to ascertain which ones are correctly reported in the literature. They correspond to the counterterms needed to renormalize the one-loop effective action in four dimensions. They may be evaluated at arbitrary dimensions $D$, in which case they identify only a subset of the divergences appearing in the effective action for $D\geq 6$. Generically, these coefficients depend on the gauge-fixing choice adopted in quantizing the Einstein-Hilbert action. However, they become gauge-invariant once evaluated on-shell, i.e. using Einstein's field equations with cosmological constant. We identify them and use them as a benchmark for checking alternative approaches to perturbative quantum gravity. One such approach describes the graviton in first-quantization through the use of the action of the ${\cal N}=4$ spinning particle, characterized by four supersymmetries on the worldline and a set of worldline gauge invariances. This description has been used for computing the gauge-invariant coefficients as well. We verify their correctness at $D=4$, but find a mismatch at arbitrary $D$ when comparing with the benchmark fixed earlier. We interpret this result as signaling that the path integral quantization of the ${\cal N}=4$ spinning particle should be amended. We perform this task by fixing the correct counterterm that must be used in the worldline path integral quantization of the ${\cal N}=4$ spinning particle to make it consistent in arbitrary dimensions.
description: 14 pages
Structure and kinematics of a massive galaxy at z ~ 7
Creators: name: Posses, A. C.
name: Aravena, M.
name: González-López, J.
name: Assef, R. J.
name: Lambert, T.
name: Jones, G. C.
name: Bouwens, R. J.
name: Brisbin, D.
name: Díaz-Santos, T.
name: Herrera-Camus, R.
name: Ricci, C.
name: Smit, R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Observations of the rest-frame UV emission of high-redshift galaxies suggest that the early stages of galaxy formation involve disturbed structures. Imaging the cold interstellar medium can provide a unique view of the kinematics associated with the assembly of galaxies. In this paper, we analyzed the spatial distribution and kinematics of the cold ionized gas of the normal star-forming galaxy COS-2987030247 at z = 6.8076, based on new high-resolution observations of the [C II] 158um line emission obtained with the Atacama Large Millimeter/submillimeter Array. These observations allowed us to compare the spatial distribution and extension of the [C II] and rest-frame UV emission, model the [C II] line data-cube using 3DBarolo, and measure the [C II] luminosity and star formation rate (SFR) surface densities in the galaxy subregions. The system is found to be composed of a main central source, a fainter north extension, and candidate [C II] companions located 10-kpc away. We find similar rest-frame UV and [C II] spatial distributions, suggesting that the [C II] emission emerges from the star-forming regions. The agreement between the UV and [C II] surface brightness radial profiles rules out diffuse, extended [C II] emission in the main galaxy component. The [C II] velocity map reveals a velocity gradient in the north-south direction suggesting ordered motion, as commonly found in rotating-disk galaxies. But higher-resolution observations would be needed to rule out a compact merger scenario. Our model indicates a low average velocity dispersion, $σ$ < 30 km s$^{-1}$. This result implies a dispersion lower than the expected value from observations and semi-analytic models of high redshift galaxies. We argue that COS-2987030247 is a candidate rotating disk experiencing a short period of stability which will be possibly perturbed at later times by accreting sources.
description: 13 pages (+ 8 Appendix), 15 Figures, Accepted for publication in A&A
Desarrollo organizacional y del potencial humano en las entidades cooperativas
Creators: name: Castellar Romero, Sthela M
name: Ruiz Espinosa, Edgar A
Publisher: name: Universidad de Cartagena
Year: 1995
Subjects: Clima organizacional
Cooperativas
Cultura Organizacional
Administración de personal

description: Tesis (Administrador de Empresas).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 1995
description: El presente estudio tiene por objeto elaborar un diagnostico en la entidades cooperativas de la ciudad de Cartagena, que sirva como base para formular un plan de acción de mejoramiento en las entidades cooperativas locales.
Terror: live
Creators: name: Rarm, Lewis
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2023
Subjects: classificationCode: 3605
subject: Screen and digital media
classificationCode: 36
subject: Creative arts and writing
classificationCode: 47
subject: Language, communication and culture
classificationCode: 4702
subject: Cultural studies
classificationCode: 4701
subject: Communication and media studies

description: No description supplied
title: EPCentCare – Effekte personenzentrierter Pflege und Versorgung auf die Verschreibungshäufigkeit von Antipsychotika in Pflegeheimen
Creators: name: Löscher, Susanne
name: Vollmar, Horst Christian
name: Richter, Christin
name: Berg, Almuth
name: Fleischer, Steffen
name: Köpke, Sascha
name: Balzer, Katrin
name: Fick, Eva-Maria
name: Mann, Eva
name: Meyer, Gabriele
name: Sönnichsen, Andreas
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: personenzentrierte Pflege
subject: Pflegeheim
subject: Verringerung Antipsychotikaverschreibung
subject: 610 Medical sciences; Medicine

description: Hintergrund: Bis zu 90% der Pflegeheimbewohner mit Demenz zeigen herausfordernde Verhaltensweisen. In Deutschland und anderen europäischen Ländern werden Antipsychotika als Therapieoption der ersten Wahl eingesetzt - bis zu 30% der Pflegeheimbewohner haben mindestens eine Antipsychotika-Verschreibung.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
Diagnosing deceivingly cold dusty galaxies at 3.5
Creators: name: Jin, Shuowen
name: Daddi, Emanuele
name: Magdis, Georgios E.
name: Liu, Daizhong
name: Weaver, John R.
name: Tan, Qinghua
name: Valentino, Francesco
name: Gao, Yu
name: Schinnerer, Eva
name: Calabro, Antonello
name: Gu, Qiusheng
name: Sese, David Blanquez
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using NOEMA and ALMA 3mm line scans, we measure spectroscopic redshifts of six new dusty galaxies at 3.56, based on template IR spectrum energy distribution (SED) from known submillimeter galaxies at z=4--6. Dust SED analyses explain the photo-z overestimate from seemingly cold dust temperatures (Td) and steep Rayleigh-Jeans (RJ) slopes, providing additional examples of cold dusty galaxies impacted by the Cosmic Microwave Background (CMB). We therefore study the general properties of the enlarged sample of 10 ``cold" dusty galaxies over 3.5~4, together with the severe impact of the CMB on their RJ observables, paving the way for the diagnostics of optically thick dust in the early universe. Conventional gas mass estimates based on RJ dust continuum luminosities implicitly assume an optically thin case, overestimating gas masses by a factor of 2--3 on average in compact dusty star-forming galaxies.
description: Published version in A&A
E(k,L) level statistics of classically integrable quantum systems based on the Berry-Robnik approach
Creators: name: Makino, Hironori
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Theory of the quantal level statistics of classically integrable system, developed by Makino et al. in order to investigate the non-Poissonian behaviors of level-spacing distribution (LSD) and level-number variance (LNV)\cite{MT03,MMT09}, is successfully extended to the study of $E(K,L)$ function which constitutes a fundamental measure to determine most statistical observables of quantal levels in addition to LSD and LNV. In the theory of Makino et al., the eigenenergy level is regarded as a superposition of infinitely many components whose formation is supported by the Berry-Robnik approach in the far semiclassical limit\cite{Robn1998}. We derive the limiting $E(K,L)$ function in the limit of infinitely many components and elucidates its properties when energy levels show deviations from the Poisson statistics.
description: Published July 2014 in PTEP: https://academic.oup.com/ptep/article/2014/7/073A01/1562895. arXiv admin note: text overlap with arXiv:0902.1282
Creation and robustness of quantized vortices in a dipolar supersolid when crossing the superfluid-to-supersolid transition
Creators: name: Šindik, Marija
name: Recati, Alessio
name: Roccuzzo, Santo Maria
name: Santos, Luis
name: Stringari, Sandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Experiments on dipolar Bose-Einstein condensates have recently reported the observation of supersolidity. Although quantized vortices constitute a key probe of superfluidity, their observability in dipolar supersolids is largely prevented by the strong density depletion caused by the formation of droplets. We present a novel approach to the nucleation of vortices and their observation, based on the quenching of the s-wave scattering length across the superfluid-supersolid transition. Starting from a slowly rotating, vortex-free, configuration in the superfluid phase, we predict vortex nucleation as the system enters the supersolid phase, due to the strong reduction of the critical angular velocity in the supersolid. Once a vortex is created, we show that it is robustly preserved when the condensate is brought back to the superfluid phase, where it may be readily observed.
Modeling Intrinsic Galaxy Alignment in the MICE Simulation
Creators: name: Hoffmann, Kai
name: Secco, Lucas F.
name: Blazek, Jonathan
name: Crocce, Martin
name: Tallada-Crespí, Pau
name: Samuroff, Simon
name: Prat, Judit
name: Carretero, Jorge
name: Fosalba, Pablo
name: Gaztanaga, Enrique
name: Castander, Francisco J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The intrinsic alignment (IA) of galaxies is potentially a major limitation in deriving cosmological constraints from weak lensing surveys. In order to investigate this effect we assign intrinsic shapes and orientations to galaxies in the light-cone output of the MICE simulation, spanning $\sim5000\,{\rm deg}^2$ and reaching redshift $z=1.4$. This assignment is based on a 'semi-analytic' IA model that uses photometric properties of galaxies as well as the spin and shape of their host halos. Advancing on previous work, we include more realistic distributions of galaxy shapes and a luminosity dependent galaxy-halo alignment. The IA model parameters are calibrated against COSMOS and BOSS LOWZ observations. The null detection of IA in observations of blue galaxies is accounted for by setting random orientations for these objects. We compare the two-point alignment statistics measured in the simulation against predictions from the analytical IA models NLA and TATT over a wide range of scales, redshifts and luminosities for red and blue galaxies separately. We find that both models fit the measurements well at scales above $8\,h^{-1}{\rm Mpc}$, while TATT outperforms NLA at smaller scales. The IA parameters derived from our fits are in broad agreement with various observational constraints from red galaxies. Lastly, we build a realistic source sample, mimicking DES Year 3 observations and use it to predict the IA contamination to the observed shear statistics. We find this prediction to be within the measurement uncertainty, which might be a consequence of the random alignment of blue galaxies in the simulation.
description: 35 pages, 29 figures, 3 Tables, minor corrections
Explicit description of jumping phenomena on moduli spaces of parabolic connections and Hilbert schemes of points on surfaces
Creators: name: Komyo, Arata
name: Saito, Masa-Hiko
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D20 (Primary), 34M55, 32G34 (Secondary)

description: In this paper, we investigate the apparent singularities and the dual parameters of rank 2 parabolic connections on $\mathbb{P}^1$ and rank 2 (parabolic) Higgs bundle on $\mathbb{P}^1$. Then we obtain explicit descriptions of Zariski open sets of the moduli space of the parabolic connections and the moduli space of the Higgs bundles. For $n=5$, we can give global descriptions of the moduli spaces in detail.
description: 26 pages, 3 figures
Doping dependence of the upper critical field in untwinned YBa$_2$Cu$_3$O$_{7-δ}$ thin films
Creators: name: Wahlberg, E.
name: Arpaia, R.
name: Kalaboukhov, A.
name: Bauch, T.
name: Lombardi, F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on measurements of the doping dependence of the upper critical field $H_{c,2}$ in 50 nm thick YBa$_2$Cu$_3$O$_{7-δ}$ films. The films are untwinned and are characterized by a small in-plane compressive strain. We find that the $H_{c,2}$ shows a strong decrease in the underdoped region of the phase diagram, in agreement with what has been measured in relaxed single crystals. The origin of the decrease of $H_{c,2}$ in the underdoped regime is discussed within a scenario where charge density wave order competes with superconductivity. This demonstrates the potential of using thin films for studying the phase diagram of high-$T_c$ materials under strain.
КОРРЕЛЯЦИЯ СИСТЕМНОГО ЦИТОКИНОВОГО И АНТИОКСИДАНТНОГО СТАТУСА ПРИ ВОЗРАСТНОЙ МАКУЛЯРНОЙ ДЕГЕНЕРАЦИИ AREDS (4-Й СТАДИИ) У ПОЖИЛЫХ
Creators: name: Фабрикантов Олег Львович
name: Коняев Дмитрий Александрович
name: Николашин Сергей Иванович
name: Попова Евгения Валентиновна
name: Яблокова Наталья Валентиновна
Publisher: name: Современные проблемы здравоохранения и медицинской статистики
Year: 2020
Subjects: возрастная макулярная дегенерация
пожилые
цитокины
антиоксидантная система

description: Высокая распространенность возрастной макулярной дегенерации среди пожилого населения, приводящая часто к слепоте, недостаточная изученность связей цитокинового профиля и антиоксидантных изменений у больных с данной патологией на поздней стадии определяют актуальность рассматриваемой проблемы. Цель исследования – изучение содержания и корреляционных связей параметров системного цитокинового и антиоксидантного статуса при возрастной макулярной дегенерации на поздней стадии у пожилых пациентов. Материал и методы. Проведено обследование 57 больных с возрастной макулярной дегенерацией 4-й стадии в возрасте 60-74 года и лиц контрольной группы аналогичного возраста. Уровень цитокинов в крови определяли на проточном цитометре, а показатели антиоксидантной системы спектрофиметрическим методом и на комплексе «Цвет – Яуза – 01 – АА». Результаты исследования. Установлено статистически значимое снижение содержания сывороточных противовоспалительных цитокинов и интерферонов и значительное повышение IL 1β, IL – 2, IL – 8, IL – 18. Активность антиоксидантной системы по изученным параметрам существенно снижена. Корреляционный метод вывил прямые связи между противовоспалительными цитокинами и активностью супероксиддисмутазы и антиокиcлительной активностью. Обратная связь установлена между IL 1β, IL – 8, IL – 18 и супероксид дисмутазой, глутатионпероксидазой и каталазой. Заключение. Выявленные особенности и соотношения цитокинового и антиоксидантного статуса следует применять при диагностике далекозашедшей возрастной макулярной дегенерации в пожилом возрасте.
title: Das soziale Geschlecht – geschlechtsspezifische Differenzierungen zwischen Ärztinnen und Ärzten bei der Durchführung von Bilanzierungsdialogen
Creators: name: Henze, K.-H.
name: Heim, S.
name: Backhaus, J.
name: Löwenstein, F.
name: Wilm, S.
name: Abholz, H.-H.
name: Ilse, K.
name: Bureick, G.
name: Weißbach, S.
name: Bahrs, O.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Bilanzierungsdialog
subject: Gender
subject: Ressourcenorientierung
subject: 610 Medical sciences; Medicine

description: Hintergrund: Das soziale Geschlecht (gender) wird auch mit Bezug auf die hausärztliche Versorgung zum Thema. Die Gestaltung des ärztlichen Dialogs mit der Patientin bzw. dem Patienten scheint auch durch geschlechtsspezifische Muster beeinflusst zu sein. Im Rahmen des Projekts „Bilanzierungsdialoge[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
title: Lebesgue-Integral, Fourierreihen und Fouriertransformation
Creators: name: Mohr, Florian
Year: 2023

description: Diese Arbeit beschäftigt sich mit Fourierreihen und der Fouriertransformation. In Kapitel 1 werden die mathematische Idee und historische Einordnung erläutert. Um den Einstieg in Fourierreihen zu vereinfachen, wird in Kapitel 2 die Maßtheorie eingeführt. Mit Hilfe dieser wird in Kapitel 3 das Lebesgue-Integral erarbeitet. Nach all dieser Vorarbeit werden in Kapitel 4 Fourierpolynome definiert und berechnet. Im Anschluss daran wird in Kapitel 5 die Fouriertransformation definiert und es werden einige, auch physikalische, Beispiele berechnet und dargestellt. Zum Abschluss wird in Kapitel 6 das Riemann-Lebesgue-Lemma bewiesen.
A Contrastive Pre-training Approach to Learn Discriminative Autoencoder for Dense Retrieval
Creators: name: Ma, Xinyu
name: Zhang, Ruqing
name: Guo, Jiafeng
name: Fan, Yixing
name: Cheng, Xueqi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: H.3.3

description: Dense retrieval (DR) has shown promising results in information retrieval. In essence, DR requires high-quality text representations to support effective search in the representation space. Recent studies have shown that pre-trained autoencoder-based language models with a weak decoder can provide high-quality text representations, boosting the effectiveness and few-shot ability of DR models. However, even a weak autoregressive decoder has the bypass effect on the encoder. More importantly, the discriminative ability of learned representations may be limited since each token is treated equally important in decoding the input texts. To address the above problems, in this paper, we propose a contrastive pre-training approach to learn a discriminative autoencoder with a lightweight multi-layer perception (MLP) decoder. The basic idea is to generate word distributions of input text in a non-autoregressive fashion and pull the word distributions of two masked versions of one text close while pushing away from others. We theoretically show that our contrastive strategy can suppress the common words and highlight the representative words in decoding, leading to discriminative representations. Empirical results show that our method can significantly outperform the state-of-the-art autoencoder-based language models and other pre-trained models for dense retrieval.
description: Accepted by CIKM2022
Squirrels can remember little: A random walk with jump reversals induced by a discrete-time renewal process
Creators: name: Michelitsch, Thomas M.
name: Polito, Federico
name: Riascos, Alejandro P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider a class of discrete-time random walks with directed unit steps on the integer line. The direction of the steps is reversed at the time instants of events in a discrete-time renewal process and is maintained at uneventful time instants. This model represents a discrete-time semi-Markovian generalization of the telegraph process. We derive exact formulae for the propagator using generating functions. We prove that for geometrically distributed waiting times in the diffusive limit, this walk converges to the classical telegraph process. We consider the large-time asymptotics of the expected position: For waiting time densities with finite mean the walker remains in the average localized close to the departure site whereas escapes for fat-tailed waiting-time densities (i.e. densities with infinite mean) by a sublinear power-law. We explore anomalous diffusion features by accounting for the `aging effect' as a hallmark of non-Markovianity where the discrete-time version of the `aging renewal process' comes into play. By deriving pertinent distributions of this process we obtain explicit formulae for the variance when the waiting-times are Sibuya-distributed. In this case and generally for fat-tailed waiting time PDFs a $t^2$-ballistic superdiffusive scaling emerges in the large time limit. In contrast if the waiting time PDF between the step reversals is light-tailed (`narrow' with finite mean and variance) the walk exhibits normal diffusion and for `broad' waiting time PDFs (with finite mean and infinite variance) superdiffusive large time scaling. We also consider time-changed versions where the walk is subordinated to a continuous-time point process such as the time-fractional Poisson process. This defines a new class of biased continuous-time random walks exhibiting several regimes of anomalous diffusion.
Extremely Small Sizes for Faint z~2-8 Galaxies in the Hubble Frontier Fields: A Key Input For Establishing their Volume Density and UV Emissivity
Creators: name: Bouwens, R. J.
name: Illingworth, G. D.
name: Oesch, P. A.
name: Atek, H.
name: Lam, D.
name: Stefanon, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We provide the first observational constraints on the sizes of the faintest galaxies lensed by the Hubble Frontier Fields (HFF) clusters. Ionizing radiation from faint galaxies likely drives cosmic reionization, and the HFF initiative provides a key opportunity to find such galaxies. Yet, we cannot really assess their ionizing emissivity without a robust measurement of their sizes, since this is key to quantifying both their prevalence and the faint-end slope to the UV luminosity function. Here we provide the first such size constraints with 2 new techniques. The first utilizes the fact that the detectability of highly-magnified galaxies as a function of shear is very dependent on a galaxy's size. Only the most compact galaxies will remain detectable in regions of high shear (vs. a larger detectable size range for low shear), a phenomenon we carefully quantify using simulations. Remarkably, however, no correlation is found between the surface density of faint galaxies and the predicted shear, using 87 faint high-magnification mu>10 z~2-8 galaxies seen behind the first 4 HFF clusters. This can only be the case if such faint (~-15 mag) galaxies have significantly smaller sizes than luminous galaxies. We constrain their half-light radii to be ~0.1-0.3).
description: 19 pages, 15 figures, 3 tables, accepted for publication in ApJ
Literatura, camino seguro hacia el aprendizaje infantil ¡Únete al cuento de la lectura y la escritura
Creators: name: Payares Canoles, Francis María
name: Martínez Arnedo, Grised Paola
name: Hernández Babilonia, Yesica
Publisher: name: Universidad de Cartagena
Year: 2015
Subjects: Lectura y escritura
Actividades lúdico pedagógicas
Incentivar niños y niñas
Literatura

description: Tesis (Licenciado en Pedagogía Infantil) -- Universidad de Cartagena en convenio Universidad del Tolima. Facultad de ciencias sociales y educación. Programa de pedagogía infantil, 2015
description: El trabajo titulado, Literatura, camino seguro hacia el aprendizaje infantil que lleva como lema “ únete al cuento de la lectura y escritura”, realizado en la institución educativa técnica industrial de Turbana, sede nuestra señora del Carmen en el grado 1° de primaria, nace de las practicas pedagógicas que se realizaron durante nuestro proceso formativo, en la que se vivieron muchas experiencias con los niños y niñas; y de estas se evidenciaron las falencias literarias que conllevaron a la formulación de este proyecto. Nos dimos a la tarea de involucrarnos de lleno a la institución con la colaboración de la comunidad educativa, el cual fue un proceso muy enriquecedor tanto para los docentes como para nosotros, luego de identificar tales falencias, nos vimos motivados a crear encuestas a los docentes para verificar cuales eran los procesos que ellas llevaban en el proceso de enseñanza de la literatura, de igual manera a los padres de familia para poder identificar los antecedentes que de alguna manera conducían a la desmotivación de los estudiantes hacia este área. Después de identificado todos estos antecedentes fue tanta la motivación que nos llevó a buscar, crear y organizar estrategias para llevar a cabo la realización de las actividades lúdico pedagógicas; para incentivar a los estudiantes a despertar el amor por la literatura; se usaron técnicas para mejorar la motricidad fina en estos estudiantes para luego llevar a cabo nuestra propuesta pedagógica. Cada mes se iniciaba con una actividad diferente en las que se vivieron emociones por los resultados positivos que se obtenían al finalizar, al ver la alegría y el avance que se logró con todos estos niños y niñas. Todo esto fue dado a conocer a los padres de familia que mostraron su entusiasmo por esta propuesta lo que fue la motivación para realizar este proyecto investigativo.
Scattered or Connected? An Optimized Parameter-efficient Tuning Approach for Information Retrieval
Creators: name: Ma, Xinyu
name: Guo, Jiafeng
name: Zhang, Ruqing
name: Fan, Yixing
name: Cheng, Xueqi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: H.3.3

description: Pre-training and fine-tuning have achieved significant advances in the information retrieval (IR). A typical approach is to fine-tune all the parameters of large-scale pre-trained models (PTMs) on downstream tasks. As the model size and the number of tasks increase greatly, such approach becomes less feasible and prohibitively expensive. Recently, a variety of parameter-efficient tuning methods have been proposed in natural language processing (NLP) that only fine-tune a small number of parameters while still attaining strong performance. Yet there has been little effort to explore parameter-efficient tuning for IR. In this work, we first conduct a comprehensive study of existing parameter-efficient tuning methods at both the retrieval and re-ranking stages. Unlike the promising results in NLP, we find that these methods cannot achieve comparable performance to full fine-tuning at both stages when updating less than 1\% of the original model parameters. More importantly, we find that the existing methods are just parameter-efficient, but not learning-efficient as they suffer from unstable training and slow convergence. To analyze the underlying reason, we conduct a theoretical analysis and show that the separation of the inserted trainable modules makes the optimization difficult. To alleviate this issue, we propose to inject additional modules alongside the \acp{PTM} to make the original scattered modules connected. In this way, all the trainable modules can form a pathway to smooth the loss surface and thus help stabilize the training process. Experiments at both retrieval and re-ranking stages show that our method outperforms existing parameter-efficient methods significantly, and achieves comparable or even better performance over full fine-tuning.
description: Accepted by CIKM2022
Strongly coupled quantum Otto cycle with single qubit bath
Creators: name: Chakraborty, Sagnik
name: Das, Arpan
name: Chruściński, Dariusz
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss a model of a closed quantum evolution of two-qubits where the joint Hamiltonian is so chosen that one of the qubits acts as a bath and thermalize the other qubit which is acting as the system. The corresponding exact master equation for the system is derived. Interestingly, for a specific choice of parameters the master equation takes the Gorini-Kossakowski-Lindblad-Sudarshan (GKLS) form with constant coefficients, representing pumping and damping of a single qubit system. Based on this model we construct an Otto cycle connected to a single qubit bath and study its thermodynamic properties. Our analysis goes beyond the conventional weak coupling scenario and illustrates the effects of finite bath including non-Markovianity. We find closed form expressions for efficiency (coefficient of performance), power (cooling power) for heat engine regime (refrigerator regime) for different modifications of the joint Hamiltonian.
description: 11 pages, 3 figures, comments welcome
Resultados perinatales y terapia tocolítica durante trabajo de parto en pretérminos tardíos en la empresa social del estado Clínicade Maternidad Rafael Calvo de Cartagena, noviembre 2009 - junio 2010
Creators: name: Ferneine Lora, Wilson Enrique
Publisher: name: Universidad de Cartagena
Year: 2011
Subjects: Trabajo de parto prematuro - Estudio de casos
Embarazo - Cuidado e higiene

description: Tesis (Especialista en Ginecología y Obstetricia). – Universidad de Cartagena. Facultad de Medicina. Departamento de Ginecología y Obstetricia, 2011
description: El objetivo de este trabajo de grado es describir las diferencias en los resultados perinatales cuando se utilizan o no tocolíticos durante el trabajo de parto en pretérminos tardíos
title: Statuserhebung der Lehre im Fach Allgemeinmedizin
Creators: name: Poggenburg, S.
name: Meschik, J.
name: Höfler, R.
name: Siebenhofer-Kroitzsch, A.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Gründung des Institutes für Allgemeinmedizin und evidenzbasierte Versorgungsforschung
subject: Lehrtätigkeit von extern Lehrenden an der Medizinischen Universität Graz in Zusammenarbeit mit dem Institut für Allgemeinmedizin
subject: Statuserhebung zur Lehre im Fach Allgemeinmedizin
subject: 610 Medical sciences; Medicine

description: Hintergrund: Mit der Gründung des Instituts für Allgemeinmedizin und evidenzbasierte Versorgungsforschung - IAMEV- an der Medizinischen Universität Graz im Jänner 2015 wird die bislang von externen Ärztinnen/Ärzten für Allgemeinmedizin durchgeführte Lehre[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
A Sufficient Condition for a Unique Invariant Distribution of a Higher-Order Markov Chain
Creators: name: Geiger, Bernhard C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J10

description: We derive a sufficient condition for a $k$-th order homogeneous Markov chain $\mathbf{Z}$ with finite alphabet $\mathcal{Z}$ to have a unique invariant distribution on $\mathcal{Z}^k$. Specifically, let $\mathbf{X}$ be a first-order, stationary Markov chain with finite alphabet $\mathcal{X}$ and a single recurrent class, let $g{:}\ \mathcal{X}\to\mathcal{Z}$ be non-injective, and define the (possibly non-Markovian) process $\mathbf{Y}:=g(\mathbf{X})$ (where $g$ is applied coordinate-wise). If $\mathbf{Z}$ is the $k$-th order Markov approximation of $\mathbf{Y}$, its invariant distribution is unique. We generalize this to non-Markovian processes $\mathbf{X}$.
description: 11 pages, 1 figure
La ganadería como factor de desarrollo en el departamento de Bolívar
Creators: name: Bolívar Lambis, Marcos
name: Cabarcas Berdugo, Nelsón
Publisher: name: Universidad de Cartagena
Year: 1979
Subjects: Ganaderia
Ganadería - Desarrollo económico - Bolívar
Ganadería - Aspectos socioeconómicos

description: Tesis (Economista).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Economía.
description: El presente trabajo tiene como objetivo, hacer un análisis de la ganadería en Bolívar, con su estructura poblacional y las diferentes variables que la condicional y modifican.
СОВРЕМЕННЫЕ ПРЕДСТАВЛЕНИЯ ОБ АНЕМИЧЕСКОМ СИНДРОМЕ У ЛИЦ СТАРШИХ ВОЗРАСТНЫХ ГРУПП (ОБЗОР ЛИТЕРАТУРЫ)
Creators: name: Булгакова Светлана Викторовна
name: Захарова Наталья Олеговна
name: Тренева Екатерина Вячеславовна
name: Лобинская Марина Анатольевна
Publisher: name: Современные проблемы здравоохранения и медицинской статистики
Year: 2020
Subjects: анемия
старение
пожилые
гемоглобин
эритроциты.

description: Анемия поражает значительную часть пожилого населения мировой популяции, что представляет собой проблему здравоохранения, которая, по прогнозам ученых, будет иметь рост в ближайшие годы из-за прогрессирующего постарения населения всех стран. Цель: провести анализ данных, посвященных анемическому синдрому у лиц старших возрастных групп. Материалы и методы: проведен анализ литературных данных по поисковым словам – анемия, старение, пожилые, гемоглобин, эритроциты за 1990 – 2020 года в компьютерных базах данных: PubMed, Scopus, Medical-Science, Elibrary, Web of Science, Ceeol. Результаты. Все больше данных указывает на то, что анемия у пожилых связана со снижением качества жизни, повторными госпитализациями, инвалидностью и риском смерти. В тоже время, анемия у гериатрических пациентов имеет многофакторную этиологию, до конца не изученную, что отражается на лечебно-диагностических подходах. Вопросам этиологии, патогенеза, диагностики, лечения анемического синдрома посвящен данный обзор литературы. Выводы. Анемическому синдрому необходимо уделять должное внимание в клинической практике, а не просто считать анемию «физиологическим» следствием старения. Необходимы дальнейшие клинические исследования, направленные на изучение данной нозологии.c
Dark Matter Dilution Mechanism through the Lens of Large Scale Structure
Creators: name: Nemevšek, Miha
name: Zhang, Yue
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Entropy production is a necessary ingredient for addressing the over-population of thermal relics. It is widely employed in particle physics models for explaining the origin of dark matter. A long-lived particle that decays to the known particles, while dominating the universe, plays the role of the dilutor. We point out the impact of its partial decay to dark matter on the primordial matter power spectrum. For the first time, we derive a stringent limit on the branching ratio of the dilutor to dark matter from large scale structure observation using the SDSS data. This offers a novel tool for testing models with a dark matter dilution mechanism. We apply it to the left-right symmetric model and show that it firmly excludes a large portion of parameter space for right-handed neutrino warm dark matter.
description: 6 pages, 4 figures. v2: added supplement material. Accepted for publication in Physical Review Letters
Micro-cone arrays enhance outcoupling efficiency in horticulture luminescent solar concentrators
Creators: name: Xu, Zhijie
name: Portnoi, Mark
name: Papakonstantinou, Ioannis
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Luminescent solar concentrators (LSCs) have shown the ability to realize spectral conversion, which could tailor solar spectrum to better match photosynthesis requirements. However, conventional LSCs are designed to trap, rather than extract, spectrally converted light. Here, we propose an effective method for improving outcoupling efficiency, based on protruded and extruded micro-cone arrays patterned on the bottom surface of LSCs. Using Monte-Carlo ray tracing, we estimate a maximum external quantum efficiency (EQE) of 37.73% for our Horticulture-LSC (HLSC), corresponding to 53.78% improvement relatively to conventional, planar LSCs. Additionally, structured HLSCs provide diffuse light, beneficial for plant growth. Our micro-patterned surfaces provide a solution to light trapping in LSCs and a foundation for practical application of HLSC.
Fracture characterization of the hydraulic fracture test site HFTS2 with X-ray microtomography
Creators: name: Guerrero, Javier Orlando
name: 0000-0001-8753-6382
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Fracture characterization
X-rays
Micro-CT
Hydraulic fracture
Shale
Wolfcamp formation
Delaware basin

description: Fractures are regular features in subsurface porous media. Fractures are a critical factor in the rock’s strength, stiffness and the creation of preferential flow pathways. Although fractures are an intrinsic feature of the subsurface, current understanding of the geometry and the extent of natural and hydraulic fracture networks in unconventional reservoirs is fairly limited. Measurements such as microseismic surveys, distributed acoustics and strain sensing offer indirect evidence of fracture location and geometry. However, this information is not entirely conclusive. Recent studies have sought direct evidence of hydraulic fracture geometry through coring of the stimulated reservoir. The objective of this project is to obtain three dimensional images of core sections recovered from a hydraulically fractured reservoir located in the Wolfcamp shale in the Delaware Basin obtained through the Hydraulic Fracturing Test Site 2 project (HFTS-2). The preserved cores, three and a half inches in diameter, were moved into the micro-tomograph to ensure minimal disruption. Then, we used micro computerized tomography (micro-CT) to scan different sections of the reservoir in order to create digital models that allowed us to determine parameters such as the fracture shape and orientation. The resulting images have a resolution of 40 microns per pixel/voxel which compared with the resolution of medical-CT logs (200 microns approx.) already represent an improvement of 500%. The high resolution images makes possible to observe microfractures and shale heterogeneity at the micro-scale. We used image analysis methodologies to differentiate the fractures from the rock matrix.
title: All over again … wie der deutsche Fluchtursachendiskurs die Verantwortung des Globalen Nordens ausblendet
Creators: name: Kunzemann, Paula Franziska
Year: 2024

description: Die Masterarbeit untersucht mit Hilfe einer kritischen Diskursanalyse, wie der aktuelle Fluchtursachendiskurs geführt wird. Dazu werden der Abschlussbericht 2021 und die darin enthaltenen Narrative der Fachkommission Fluchtursachen der Bundesregierung daraufhin unter-sucht, welches Wissen über Fluchtursachen produziert wird und wie dieses aus einer postkolonialen und diskurstheoretischen Perspektive interpretiert werden kann. Dabei zeigt sich, dass Fluchtursachen im Globalen Süden verortet werden, während die Verantwortung des Globalen Nordens weitgehend ausgeblendet wird. Ein solches internalistisches Verständnis von Fluchtursachen wirkt entpolitisierend und wird durch postkoloniale Wissensproduktionen über Migrant*innen, den Globalen Süden und den Globalen Norden gestützt. Diese Wissenskonstruktionen führen dazu, dass sich eine globale Dimension von Fluchtursachen zwar teilweise im Bericht wiederfindet, sich aber nicht in den Handlungsempfehlungen widerspiegelt. Die Wissensproduktion im Bericht wird in der Masterarbeit als epistemische Gewalt analysiert, wodurch der hegemoniale Diskurs Wissen über Fluchtursachen verfestigt wird.
description: The master's thesis uses a critical discourse analysis to examine how the current discourse on the root causes of migration is constructed. To this end, the final report 2021 and the narratives of the German Fachkommission Fluchtursachen on the root causes of migration con-tained therein are examined to determine what knowledge is produced about root causes of migration and how this can be interpreted from a postcolonial and discourse-theoretical perspective. The research results show that the root causes of migration are localized in the Global South, while the responsibility of the Global North is largely ignored. Such an internalist understanding of the root causes of migration has a depoliticizing effect and is supported by postcolonial knowledge productions about migrants, the Global South and the Global North. These knowledge constructions lead to a global dimension of the root causes of migration being partially reflected in the report, but not in the recommendations for action. In the master's thesis, the production of knowledge in the report is analyzed as epistemic violence, which reinforces the hegemonic discourse about root causes of migration.
Sistematización de experiencias: Análisis sobre la relación entre contexto y metodología del módulo presencial- habilidades para la vida del programa de jóvenes en acción implementado en la ciudad de Cartagena
Creators: name: Flórez Gutiérrez, Ena Yerlet
name: Martínez Bustos, Stephanie
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Jóvenes - Servicio social
Trabajo social con jóvenes

description: Tesis (Trabajador Social) -- Universidad de Cartagena. Facultad de Ciencias Sociales y Educación. Programa de Trabajo Social. 2016
description: En este trabajo se tuvo la posibilidad de apoyar los diferentes procesos que se llevaron a cabo en ambos programas de Prosperidad Social, teniendo estos en términos generales como objetivo macro, el desarrollo y la inclusión social; para lo cual, se constituyen en dos componentes: formativo y de habilidades para la vida, en este último se enfoca el presenté proyecto de sistematización, específicamente en la metodología que se trabajó durante el primer periodo que comprendió los meses de marzo y abril del año en curso.
title: Patientenpräferenzen bei Multimorbidität und Multimedikation – Pilotierung einer Evidence Map
Creators: name: Muth, C.
name: Aksamit, N.
name: Von Büdingen, F.
name: Motschall, E.
name: Van Den Akker, M.
name: Blom, J.W.
name: Beyer, M.
name: Kühlein, T.
name: Lang, B.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Evidence Map
subject: Multimorbidität
subject: Patientenpräferenzen
subject: 610 Medical sciences; Medicine

description: Hintergrund: Multimorbide Patienten sind in hausärztlichen Konsultationen die Regel. Bei der klinischen Entscheidungsfindung sollen Patientenpräferenzen berücksichtigt werden, jedoch ist unklar, wie diese erfragt bzw. konstruiert werden. Der Forschungsstand soll in einer sog. Evidence[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin