bluuebunny/crossref_metadata_2025 huggingface dataset:
Voces muertas: memoria y oralidad después de la muerte
Authors: Deance Iván
Published: November 2020

El presente trabajo aborda la continuidad de la memoria y la oralidad de personas fallecidas, a partir de los registros sonoros grabados en entrevistas a profundidad, así como las interpretaciones y acercamientos que permiten su permanencia en el tiempo y el espacio contemporáneos. Lo anterior hace posible conocer, reconocer y preservar los saberes proporcionados por los sujetos grabados que, aún después de su muerte, es posible seguir escuchando y utilizando. Con base en la historia oral, los registros sonoros, audiovisuales y la etnografía, el artículo recorre los aportes de la preservación de la memoria y la oralidad, reflexionando sobre una situación que eventualmente “viviremos” todos: la supervivencia de las voces grabadas a la misma muerte del sujeto entrevistado.
PANDEMİ SÜRECİNDE K-12 DÜZEYİNDE UZAKTAN EĞİTİM: DURUM ÇALIŞMASI
Authors: ALPER Ayfer
Published: November 2020

Corona virüsü (Covid-19), 11 Mart 2020 tarihinde Dünya Sağlık Örgütü tarafından pandemi olarak ilan edilmiş ve Milli Eğitim Bakanlığının 12 Mart 2020 tarihinde alınan karar ile 16 Mart 2020 tarihinden itibaren okulların yüz yüze eğitimine ara verilmiştir. Ankara ilinde bulunan özel bir okul da alınan kararın hemen ardından uzaktan eğitime başlamıştır. Bu süreci durum çalışmasıyla incelemek amacıyla bütün süreç gözlenmiş ve sürecin değerlendirilmesi yarı yapılandırılmış sorularla öğretmenlere sorulmuştur. Alınan yanıtlar nitel analiz yöntemi ile incelenmiş kod ve kategorilere ayrılmıştır. Elde edilen bulgulara göre genel olarak öğretmenlerin uzaktan eğitim sürecine uyum sağladıklarını, teknolojiyi kolaylıkla benimsediklerini, yüz yüze olamama ve sürekli ekran başında olma gibi olumsuzlukların yanı sıra, öğrencilerin daha dikkatli dinledikleri, öğretmenin daha hızlı ders anlatabildikleri gibi olumlu yönlerinin olduğunu da belirtmişlerdir. Öğretmenler uzaktan eğitim sürecini başarıyla yürüttüklerini belirtmişlerdir.
Examining
recent research in the field of sharing economy in tourism
Authors: Ferjanić Hodak Danijela , Krajinović Vanja
Published: November 2020

Sharing economy has become a rather
troublesome concept and business model in the process of tourism development
during the recent years. Despite its undoubtful economic benefits for service
providers and consumers, there are numerous negative impacts which can be
related to the sharing economy, ultimately leading to unsustainable tourism
development on destination level. In general, sharing economy can be attributed
numerous benefits, but in terms of tourism, it recently became closely related
to the issue of overtourism, thus becoming one of the initiators of negative
attitude of the local community towards the future tourism development.
Therefore, the concept of sharing economy has been in the focus of numerous
researchers during the last several years, with increasing number of papers
being published since 2016. This research is focused on analyzing the evolution
and importance of sharing economy within the tourism study. The focus is given
to the bibliographic analysis of journal articles within the “sharing economy
in tourism” search. Additionally, based on qualitative content analysis the aim
is to identify current state of the research in this field and to determine
research gap with respect to the issue of overtourism and to identify future
research potentials.
DETERMINANT OF GOVERNMENT BANK PERFORMANCE THROUGH NIM AS INTERVENING
Authors: Sari Laynita , Nandan Limakrisna  , Renil Septiano
Published: November 2020

A government bank is a bank in which most of its shares are owned by the government. The government bank comprises four banks namely Bank Rakyat Indonesia, Bank Negara Indonesia, Bank Mandiri, and Bank Tabungan Negara. One ratio used to assess a bank’s performance is the Return on Asset ratio. Each bank will try to keep its Return on Asset ratio consistently rising. But the phenomenon is that the Government Bank’s Return on Asset ratio fluctuated from 2014 to 2019. I will therefore examine the factors that affect the ratio of Return on Assets to government banks. In this study, the ratio used was Non Performing Loan as independent variable, Net Interest Margin as intervening variable and Return on Asset on dependent variable. The result that the Net Interest Margin variable does not mediate the relationship between Non Performing Loan and Return on Asset
BUILDING EMPLOYEE PERFORMANCE BASED ON COMPENSATION AND WORK TRAINING WITH VARIABLES OF WORK SATISFACTION (PERFORMANCE ANALYSIS OF PT. HARAPAN ABADI EMPLOYEES)
Authors: Rahadian Muhammad Irfan , R Sudiarditha I Ketut , Saptono Ari
Published: November 2020

This study aims to analyze compensation and training on employee performance through satisfaction variables. This research uses a quantitative method using the SEM Lisrel 8.8 Program analysis tool. The number of respondents was 105 employees of PT. Sumber Harapan Abadi (DataPrint). The sampling technique in this study was  purposive non-probability sampling using the Isaac and Michael method approach. The novelty in this study is the positive effect of compensation and job training on employee performance through employee job satisfaction. The results of the study stated: 1) there was a positive and significant effect of compensation on job satisfaction. 2) there is a significant positive effect of training on job satisfaction 3) there is a positive and significant effect of the effect of compensation on performance.4) a positive and significant effect of training on performance.5) there is a positive and significant effect of job satisfaction on performance 6) there is a positive and significant effect of training on performance. 7) the positive and significant influence of the effect of training on performance through job satisfaction.
Wage Policy Impact on Employee Performance in Industry Areas Bekasi District
Authors: Sabil Sabil , Syamsul Maarif Mohamad , Toet Hendratno Edie , Rachbini Widarto
Published: November 2020

In the last few years, employee performance has decreased because the wages received are considered insufficient to meet the needs of a decent life. The purpose of this study was to examine and analyze those influencing wage policies and employee performance in companies in the Bekasi Regency industrial area. The study population was employees of companies in the industrial area of ​​Bekasi Regency. In accordance with structural equition modeling (SEM), a sample of 285 respondents was selected through a purposive sampling technique. Data analysis was applied by applying government regulation theory, trade union theory, labor productivity theory, wage policy theory and employee performance theory. Hypothesis testing was carried out using SEM with the Lisrel Version 8.80 application. The results showed that the direct effect of government regulations, labor unions, work productivity and living costs has a significant effect on wage policies and government regulations, labor unions, wage policies have a significant effect on employee performance and indirect effects. government regulations, labor unions, work productivity, cost of living, have a significant effect on employee performance through wage policies.
Vezérőrnagy, tudós, professzor, pilóta
Authors: Szabó Csaba
Published: November 2020

Prof. Dr. Béla Blaskó, retired police major general, became 70 in August. On this occasion a celebratory book was published in which his friends, colleagues, and admirers recall their memories and thoughts in writing. Dr. Sándor Pintér, Minister of the Interior, formulates, summarizing his life in a welcome speech: “Decades of college and university, teaching career, love of flying, attraction to music, successful career as a lawyer”. Dr. János Balogh, lieutenant general, National Chief of Police states in his laudation: “His work shows that with perseverance, diligence, learning and home service, one can reach the top of the profession, gain skills that earn the recognition of professionals skilled in the subject and make his personality irreplaceable in his profession.” Dr. Valér Dános, major general, writes in the greeting words about the university private teacher: “Authority and respect are only present if the teacher is present with professional knowledge, preparedness, excellent performance, consistency and fairness. Because of these competencies, you have become the most responsive person among your students.” The 68-year-old Belügyi Szemle greets Professor Béla Blaskó at his 70th birthday with this interview. The interview was conducted by Dr. Csaba Szabó pol. Lt. Col.
Multiphase Circumnuclear Gas in a Low-β Disk: Turbulence and Magnetic Field Reversals
Authors: Kudoh Yuki , Wada Keiichi , Norman Colin
Published: November 2020

We studied the magnetic field structures and dynamics of magnetized multiphase gas on parsec scales around supermassive black holes by using global 3D magnetohydrodynamics (MHD) simulations. We considered the effect of radiative cooling and X-ray heating due to active galactic nuclei (AGNs). The gas disk consists of a multiphase gas with (1) cold (≤103 K) and thin, and (2) warm (∼104 K) and thick components with a wide range of number densities. The turbulent magnetic energy at maximum is comparable to the thermal and turbulent kinetic energies in the turbulent motion. We confirmed that the turbulent velocity of the warm gas in the ambient cold gas is caused by magnetoconvective instability. The turbulent magnetic field due to magnetorotational instability (MRI) is developed in the disk, but the mean toroidal magnetic field dominates and supports in a quasi-steady state, where the plasma-β, the ratio between gas pressure and magnetic pressure, is low (β < 1). As often seen in adiabatic MHD simulations of rotating disks, the direction of the mean toroidal field periodically reverses with time even in multiphase gas structures. The direction reversal is caused by magnetic flux vertically escaping from the disk and by the combination of the MRI and the Parker instability.
High-energy Neutrinos and Gamma Rays from Nonrelativistic Shock-powered Transients
Authors: Fang Ke , Metzger Brian D. , Vurm Indrek , Aydi Elias , Chomiuk Laura
Published: November 2020

Shock interaction has been argued to play a role in powering a range of optical transients, including supernovae, classical novae, stellar mergers, tidal disruption events, and fast blue optical transients. These same shocks can accelerate relativistic ions, generating high-energy neutrino and gamma-ray emission via hadronic pion production. The recent discovery of time-correlated optical and gamma-ray emission in classical novae has revealed the important role of radiative shocks in powering these events, enabling an unprecedented view of the properties of ion acceleration, including its efficiency and energy spectrum, under similar physical conditions to shocks in extragalactic transients. Here we introduce a model for connecting the radiated optical fluence of nonrelativistic transients to their maximal neutrino and gamma-ray fluence. We apply this technique to a wide range of extragalactic transient classes in order to place limits on their contributions to the cosmological high-energy gamma-ray and neutrino backgrounds. Based on a simple model for diffusive shock acceleration at radiative shocks, calibrated to novae, we demonstrate that several of the most luminous transients can accelerate protons up to 1016 eV, sufficient to contribute to the IceCube astrophysical background. Furthermore, several of the considered sources—particularly hydrogen-poor supernovae—may serve as “gamma-ray-hidden” neutrino sources owing to the high gamma-ray opacity of their ejecta, evading constraints imposed by the nonblazar Fermi Large Area Telescope background. However, adopting an ion acceleration efficiency of ∼0.3%–1% motivated by nova observations, we find that currently known classes of nonrelativistic, potentially shock-powered transients contribute at most a few percent of the total IceCube background.
The Clustering of Submillimeter Galaxies Detected with ALMA
Authors: García-Vergara Cristina , Hodge Jacqueline , Hennawi Joseph F. , Weiss Axel , Wardlow Julie , Myers Adam D. , Hickox Ryan
Published: November 2020

Previous studies measuring the clustering of submillimeter galaxies (SMGs) have based their measurements on single-dish-detected sources, finding evidence for strong clustering. However, ALMA has revealed that, due to the coarse angular resolution of these instruments, single-dish sources can be composed of multiple sources. This implies that the clustering inferred from single-dish surveys may be overestimated. Here, we measure the clustering of SMGs based on the ALESS survey, an ALMA follow-up of sources previously identified in the LABOCA ECDFS Submillimeter Survey (LESS). We present a method to measure the clustering of ALMA sources that have been previously identified using single-dish telescopes, based on forward modeling both the single-dish and the ALMA observations. We constrain upper limits for the median mass of halos hosting SMGs at 1 < z < 3, finding

for SMGs with flux densities

mJy, which is at least

times lower than the mass inferred based on the clustering of the LESS sources alone. This suggests that the strength of SMG clustering based on single-dish observations was overestimated, and therefore SMGs might be hosted by dark matter halos less massive than has previously been estimated. By extrapolating our models down to flux densities of

mJy, we find that such SMGs inhabit halos with median mass

. We conclude that only the brightest (

mJy) SMGs would trace massive structures at z ∼ 2 and only SMGs with

mJy may be connected to massive local elliptical galaxies, quasars at intermediate redshifts, and high-redshift star-forming galaxies, whereas fainter SMGs are unlikely linked to these populations.
Quasar Luminosity Function Modeled using a Tapered Power Law
Authors: Chaundy Heather , Basu Shantanu
Published: November 2020

The formation of Supermassive black holes (SMBHs) early in the universe challenges our understanding of black holes formation, since they appear to be well-established by several hundred millions of years after the big bang. Therefore, theories including direct-collapse black holes and times of super-Eddington accretion are utilized to explain the phenomenon. Quasars can be studied to help explain the growth of these SMBHs using the quasar luminosity function (QLF). The function used here to model the QLF is a four parametered function, the tapered power law. With further calculations, this data shows that periods of super-Eddington accretion are likely happening, and that the seed mass for these SMBHs ranges from about 102 to 105
M
⊙.
On the Abundances of Lanthanides in HgMn Stars
Authors: Monier Richard
Published: November 2020

Little is known about the abundances of lanthanides in the Chemically Peculiar HgMn stars. Evidence is presented in this Note that they are not important absorbers in the classical HgMn stars μ Lep and β Scl. A fully consistent abundance analysis of lanthanides on a single temperature scale, using the same atomic data and including hyperfine structure for a larger number of HgMn stars is necessary.
Morphological keys for identifying long-tailed gorals (Naemorhedus caudatus) and population composition in the Osaek Region of South Korea
Authors: Kim Ki-Yoon , Lim Sang-Jin , Ahn Jae-Yong , Min Ji-Hong , Park Yung-Chul
Published: November 2020

The objectives of this study were to select morphological keys for the identification of individual endangered long-tailed gorals through analysis of photographic data and to use these morphological keys to determine the number and population composition of gorals living in the Osaek Region of Seoraksan National Park. Amongst 8149 photos taken using 73 cameras in the Osaek Region, 2057 photos of faces and horns were analysed. The presence and absence of horns, shape of the horns, proportion of the ring to the length of the horn and facial colour pattern were selected as morphological keys to identify individual gorals. To verify the accuracy of the morphological keys for identifying gorals, a blind test was performed on gorals residing in the sanctuary of the Yanggu Goral Restoration Center. The test revealed that the population and age of gorals were discerned correctly by the morphological keys, but there was a 12.5% error in discriminating between sexes in gorals aged over 10 years. Fifty-six gorals were identified from 2057 pictures, based on the morphological keys and methods developed in this study. The population of 56 individuals consisted of 43 individuals aged over 2 years (subadult or adult) and 13 offspring aged less than 2 years, with a ratio of 3.3:1. Of the total 56 individuals, 45% were adults aged 10 years or older, 18% were adults aged 3–10 years, 7% were subadults aged 2–3 years, 23% were offspring aged less than 2 years and 7% were individuals aged 2 years or older, whose age and sex could not be confirmed. The sex ratio of males to females was 1.17:1, with a corrected sex ratio of 1:1 considering the 12.5% error rate for gorals aged over 10 years, amongst the 39 gorals aged over 2 years.
Experimental confirmation of a new method for selective neutron separation
Authors: Drobyshevsky Yuri V. , Anfimov Ilya M. , Varlachev Valery A. , Kobeleva Svetlana P. , Nekrasov Sergey A. , Stolbov Sergey N.
Published: November 2020

The article presents an experimental confirmation of the operability of neutron concentrators in devices that form and use directed high-intensity thermal neutron beams with elliptical channels made as blocks of profiled graphite and aluminum plates. The effect of neutron reflection from the surface of materials is the basis of a device capable of selecting neutrons by their directions in space. The study experimentally confirmed the efficiency of a moderating-focusing structure (MFS) based on a pack of elliptical neutron mirrors, which makes it possible to form oriented thermal neutron beams from the outgoing neutron flux. To record the effects of selective thermal neutron separation, silicon single-crystal wafers were used, due to which it was possible to obtain portraits of integral neutron fluxes in the reactor. The experiments were carried out in a horizontal experimental channel (HEC-4) at the IRT-T reactor of the National Research Tomsk Polytechnic University. The integral neutron flux was (2.3–3.02)·1017 cm–2. The neutron flux was detected by the change in the specific electrical resistivity of the single-crystal silicon wafers. The effect of concentration of thermal neutrons was recorded both on the block of graphite neutron mirrors and on the block of aluminum thin-walled elliptical mirrors. In the near future, on this basis, it will be possible to solve such problems as extending the reactor life by reducing the hydrogen uptake in the inner walls. In addition, the experiments have proved the possibility of creating anisotropic structures that lie outside the formalism of Liouville’s theorem, in which the surfaces of thermal neutron sinks are formed with subsequent concentration in the areas separated by aluminum or graphite plates.
Quel est le bon nombre des amis ? Remarques sur la critique aristotélicienne de la poluphilia
Authors: El Murr Dimitri
Published: November 2020

Comme le rappelle Aristote, au début de son enquête sur la philia dans l’ Éthique à Nicomaque , aucun homme ne choisirait de vivre sans amis, eût-il tous les autres biens. Mais pour être heureux, un homme ne doit pas pour autant cultiver l’amitié sans limite. Aussi quel est le bon nombre des amis ? Cet article examine le chapitre 10 du livre IX de l’ Éthique à Nicomaque où Aristote aborde cette question en détail en montrant l’importance de la vie commune ( to suzēn ) pour l’amitié.
Chaos in the Japanese lexis
Authors: Akamatsu Tsutomu
Published: November 2020

L’introduction, presque quotidienne, en japonais, d’emprunts de mots anglais principalement venus des États-Unis, continue sans aucun contrôle officiel depuis la fin de la Deuxième Guerre mondiale, surtout dans les journaux, la radio, la télévision, la publicité commerciale, les magazines populaires, etc. Ce qui est alarmant est que la majorité de ces emprunts ne sont pas nécessaires parce qu’ils sont facilement remplaçables par les mots traditionnels japonais. Par exemple, リスナー « radio listener » peut être remplacé par 聴取者 (chôshusha). Un nombre important de monolingues souffrent de l’usage de ce type d’emprunts anglais qu’ils ne comprennent pas. Il faudrait peut-être penser à instituer une loi du type Loi Bas-Lauriol ou Loi Toubon.
Une langue peut-elle appartenir à deux aires linguistiques ? Le cas du rromani
Authors: Courthiade Marcel
Published: November 2020

Is double (or manifold) language areal belonging conceivable for a language? The article proposes to explore the case of an Indo-Aryan language in Millennium-old diaspora – Rromani. It is based on research in areal linguistics, a concept classically focused on languages of settled populations. The notion of Sprachbund, launched mainly by Nicolas Troubetzkoy and Kristian Sandfeld arose from Balkan linguistic material – developing Jerenj Kopitar’s intuition. It was eventually extended to other areas – in our case South Asia, by Murray Emeneau and later Annie Montaut. The case of Rromani, with a dual areal implantation, is not very common worldwide but it allows to check the contour its integration as both an age-old member (as Rromani in the Indian area) and as a new-comer (as Rromani in the Balkan). It gives also hints about the stability and/or sustainability of traits acquired in both situations, including after leaving the areas under discussion. In fact, ancient features (brought from India) result more resistant to erosion and changes than transitional features (acquired in the Balkan) – in parallel with the fate of lexical items: inherited lexemes are comparatively more resistant than loanwords, even when the Rromani speakers are not anymore aware of their respective status and view them all equally as “genuine Rromani words”.
La « pensée opératoire », de Pierre Marty et Michel de M’Uzan
Authors: Aisenstein Marilia
Published: November 2020

L’auteur commente « La “pensée opératoire” », communication de Pierre Marty et Michel de M’Uzan au XXIII e Congrès des Psychanalystes de Langues Romanes de 1962, à la lumière de l’évolution de la psychosomatique contemporaine de l’École de Paris et montre comment ce texte constitue « la part occulte » du rapport de C. David et M. Fain dont il est complémentaire. Suit une discussion de la pensée opératoire, non plus comme résultant d’une défaillance, mais plutôt comme une défense drastique liée aux états traumatiques.
« L’affect », d'André Green
Authors: Papageorgiou Marina
Published: November 2020

L’affect chez Green a une nature complexe à la fois quantitative et qualitative, quantité mouvante et qualité d’investissement des processus de pensée. Son rôle dans la représentance pulsionnelle, en tant que « signifiant de la chair, chair du signifiant », sera abordé en suivant le travail transformationel de différenciation, de liaison-déliaison avec la représentation, en articulation avec les deux topiques. Seront examinés le rôle du surmoi paternel et de la censure maternelle, à partir d’une intervention de Michel Fain et Denise Braunschweig.
« La bisexualité psychique. Éléments d’une réévaluation », de Christian David
Authors: Merot Patrick
Published: November 2020

La relecture du rapport de Christian David sous l’angle de la question du genre montre à la fois le côté précurseur de son approche du transsexualisme et met en valeur tous les changements intervenus depuis au niveau sociétal sur le thème de la bisexualité, montrant que les questions auxquelles nous sommes confrontées à ce sujet aujourd’hui, vivement renvoyées par la société, restent encore pleines d’énigmes.
« Le sens du désespoir. Dépression et créativité », d'André Haynal
Authors: Zilkha Nathalie
Published: November 2020

André Haynal nous invite à redécouvrir l’universalité des affects dépressifs dans le développement, à partir des mouvements de séparation et de différenciation. Il précise le rôle central du travail de deuil dans le processus analytique, et articule dimension traumatique, narcissisme et Œdipe. « Le sens du désespoir » est ainsi approché à partir de la Hilflosigkeit , de ses résonances fantasmatiques dans l’après-coup, et d’une tension dialectique avec les fantasmes de toute-puissance.
Pratiques familiales autour du livre et vocabulaire des jeunes enfants
Authors: Nocus Isabelle , Bodin Astrid
Published: November 2020

Cette étude examine le lien entre les pratiques familiales autour du livre et le niveau de vocabulaire de 261 enfants de 29 mois, rencontrés en crèche, dont 128 ont été suivis en petite section de maternelle (PS). En crèche, ils ont été soumis à un test de vocabulaire en réception et leurs parents ont renseigné leurs pratiques autour du livre et le niveau de vocabulaire de leur enfant. En PS, les compétences des enfants en phonologie, lexique et morphosyntaxe ont été évaluées. Les résultats révèlent que les pratiques familiales autour du livre avant l’entrée à l’école maternelle ont un impact sur le niveau de vocabulaire des enfants en crèche et perdurent sur le langage en production en PS.
L’implication des parents d’enfants placés en France et en Norvège
Authors: Picot Aurélie
Published: November 2020

L’objectif de cette étude est d’apporter un éclairage sur les pratiques d’implication des parents d’enfants placés en France et en Norvège. On s’interrogera sur les différences dans les pratiques professionnelles et la façon dont celles-ci sont influencées par la place des familles dans les États sociaux. Les données mobilisées dans cet article sont issues d’entretiens semi-directifs auprès de 43 travailleurs sociaux des deux pays. Des thèmes ont été identifiés dans les entretiens et systématiquement comparés au sein et entre les échantillons nationaux. L’article met en évidence des différences d’intensité des pratiques d’implication parentale. Le degré plus élevé d’implication parentale dans les discours des professionnels français est à relier à la place centrale de la famille dans l’État social français, tandis que l’étendue plus restreinte des pratiques d’implication parentale dans les discours des professionnels norvégiens reflète la place plus périphérique de la famille dans cet État.
Les Lumières de Charles Taylor
Authors: Spector Céline
Published: November 2020

Cette contribution tentera de cerner les enjeux de l’interprétation contrastée de la philosophie des Lumières proposée par Charles Taylor. Pourquoi le déisme et le matérialisme sont-ils perçus par Taylor comme des fourvoiements de la modernité ? Pourquoi considère-t-il que les Lumières ont méconnu la manière dont la subjectivité pouvait fonder ses aspirations morales et politiques ? Nous verrons que la philosophie des Lumières « radicales », selon Taylor, produit une morale et une politique incohérentes : elle postule que l’harmonie sociale procède de l’intérêt bien compris grâce à une ingénierie législative et éducative ; mais elle n’explique pas pourquoi l’idéal d’une société harmonieuse mérite d’être poursuivi. L’auteur des Sources du moi entérine de la sorte l’idée répandue d’une incohérence des philosophes matérialistes : leur psychologie hédoniste et égoïste est incompatible avec leur éthique, qui vise le plus grand bonheur du plus grand nombre. Les Lumières sont donc rendues responsables d’une vision contradictoire de la morale et d’une vision appauvrie de la subjectivité.
Optimality results for a specific fractional problem
Authors: Gadhi Nazih Abderrazzak , Hamdaoui Khadija
Published: November 2020

In this paper, one minimizes a fractional function over a compact set. Using an exact separation theorem, one gives necessary optimality conditions for strict optimal solutions in terms of Fréchet subdifferentials. All data are assumed locally Lipschitz.
The approximation algorithm based on seeding method for functional $ k $-means problem†
Authors: Li Min , Wang Yishui , Xu Dachuan , Zhang Dongmei
Published: November 2020

Different from the classical \begin{document}$ k $\end{document}-means problem, the functional \begin{document}$ k $\end{document}-means problem involves a kind of dynamic data, which is generated by continuous processes. In this paper, we mainly design an \begin{document}$ O(\ln\; k) $\end{document}-approximation algorithm based on the seeding method for functional \begin{document}$ k $\end{document}-means problem. Moreover, the numerical experiment presented shows that this algorithm is more efficient than the functional \begin{document}$ k $\end{document}-means clustering algorithm.
Targeting Interventions in Networks
Authors: Galeotti Andrea , Golub Benjamin , Goyal Sanjeev
Published: November 2020

We study games in which a network mediates strategic spillovers and externalities among the players. How does a planner optimally target interventions that change individuals' private returns to investment? We analyze this question by decomposing any intervention into orthogonal
principal components, which are determined by the network and are ordered according to their associated eigenvalues. There is a close connection between the nature of spillovers and the representation of various principal components in the optimal intervention. In games of strategic complements (substitutes), interventions place more weight on the top (bottom) principal components, which reflect more global (local) network structure. For large budgets, optimal interventions are simple—they essentially involve only a single principal component.
Frontier Culture: The Roots and Persistence of “Rugged Individualism” in the United States
Authors: Bazzi Samuel , Fiszbein Martin , Gebresilasse Mesay
Published: November 2020

The presence of a westward‐moving frontier of settlement shaped early U.S. history. In 1893, the historian Frederick Jackson Turner famously argued that the American frontier fostered individualism. We investigate the “frontier thesis” and identify its long‐run implications for culture and politics. We track the frontier throughout the 1790–1890 period and construct a novel, county‐level measure of total frontier experience (TFE). Historically, frontier locations had distinctive demographics and greater individualism. Long after the closing of the frontier, counties with greater TFE exhibit more pervasive individualism and opposition to redistribution. This pattern cuts across known divides in the United States, including urban–rural and north–south. We provide evidence on the roots of frontier culture, identifying both selective migration and a causal effect of frontier exposure on individualism. Overall, our findings shed new light on the frontier's persistent legacy of rugged individualism.
On the welfare cost of consumption fluctuations in the presence of memorable goods
Authors: Hai Rong , Krueger Dirk , Postlewaite Andrew
Published: November 2020

We propose a new category of consumption goods, memorable goods, that generate a utility flow even after physical consumption. Empirically, memorable goods expenditures exhibit frequent zero monthly purchases and lumpy expenditure spikes. Memorable goods expenditures are 20% the size of nondurable expenditures, but three times as volatile. We then develop a consumption‐savings model with borrowing constraints and income risk that formalizes the notion of memorable goods and distinguishes them from other nondurable goods. We show that consumers optimally choose lumpy consumption of memorable goods. We then measure the welfare cost of consumption fluctuations using our calibrated model and empirically evaluate our calibrated model's predictions for the consumption response to predictable income changes. We find that the welfare cost of household‐level consumption fluctuations induced by income shocks fall from 20.4 to 12.3 percentage points if memorable goods are accounted for, and that empirical estimates of excess sensitivity of consumption may significantly be driven by memorable goods expenditures.
Climate change and U.S. agriculture: Accounting for multidimensional slope heterogeneity in panel data
Authors: Keane Michael , Neal Timothy
Published: November 2020

We study potential impacts of future climate change on U.S. agricultural productivity using county‐level yield and weather data from 1950 to 2015. To account for adaptation of production to different weather conditions, it is crucial to allow for both spatial and temporal variation in the production process mapping weather to crop yields. We present a new panel data estimation technique, called mean observation OLS (MO‐OLS) that allows for spatial and temporal heterogeneity in all regression parameters (intercepts and slopes). Both forms of heterogeneity are important: We find strong evidence that production function parameters adapt to local climate, and also that sensitivity of yield to high temperature declined from 1950–89. We use our estimates to project corn yields to 2100 using 19 climate models and three greenhouse gas emission scenarios. We predict unmitigated climate change will greatly reduce yield. Our mean prediction (over climate models) is that adaptation alone can mitigate 36% of the damage, while emissions reductions consistent with the Paris targets would mitigate 76%.
Equilibrium computation in discrete network games
Authors: Leung Michael P.
Published: November 2020

Counterfactual policy evaluation often requires computation of game‐theoretic equilibria. We provide new algorithms for computing pure‐strategy Nash equilibria of games on networks with finite action spaces. The algorithms exploit the fact that many agents may be endowed with types such that a particular action is a dominant strategy. These agents can be used to partition the network into smaller subgames whose equilibrium sets may be more feasible to compute. We provide bounds on the complexity of our algorithms for models obeying certain restrictions on the strength of strategic interactions. These restrictions are analogous to the assumption in the widely used linear‐in‐means model of social interactions that the magnitude of the endogenous peer effect is bounded below one. For these models, our algorithms have complexityOp(nc), where the randomness is with respect to the data‐generating process,nis the number of agents, andcdepends on the strength of strategic interactions. We also provide algorithms for computing pairwise stable and directed Nash stable networks in network formation games.
Trade clustering and power laws in financial markets
Authors: Nirei Makoto , Stachurski John , Watanabe Tsutomu
Published: November 2020

This study provides an explanation for the emergence of power laws in asset trading volume and returns. We consider a two‐state model with binary actions, where traders infer other traders' private signals regarding the value of an asset from their actions and adjust their own behavior accordingly. We prove that this leads to power laws for equilibrium volume and returns whenever the number of traders is large and the signals for asset value are sufficiently noisy. We also provide numerical results showing that the model reproduces observed distributions of daily stock volume and returns.
Gradual pairwise comparison and stochastic choice
Authors: Dutta Rohan
Published: November 2020

Guided by evidence from eye‐tracking studies of choice, pairwise comparison is assumed to be the building block of the decision‐making procedure. A decision‐maker with a rational preference may nevertheless consider the constituent pairwise comparisons gradually, easier comparisons preceding difficult ones. Facing a choice problem, she may be unable to complete all relevant comparisons and choose with equal odds from alternatives not found inferior. Stochastic choice data consistent with such behavior are characterized and used to infer the underlying preference relation and the order of pairwise comparisons. The choice procedure offers a novel rationale for behavioral phenomena such as the similarity effect and violations of stochastic transitivity and regularity.
Los inicios de la ciencia moderna en el Caribe Neogranadino: Pedro López de León teoría y práctica en la cirugía de la Cartagena del Siglo XVII
Authors: Vidal Ortega Antonino , Solano Alonso Jairo
Published: November 2020

La pregunta de quién fue el cirujano sevillano Pedro López de León y qué significó el manual de medicina y cirugía que escribió en Cartagena de Indias a comienzos del siglo XVII, es el objetivo central que persigue nuestro trabajo. A través de la reconstrucción de su vida, de las reflexiones en torno a su obra y de un análisis de los referentes bibliográficos que usó, resaltaremos la notoriedad trasatlántica que alcanzó en el esfuerzo por desarrollar el conocimiento científico de la medicina moderna en un puerto central del Caribe en el comercio Atlántico en la edad Moderna.
Brain Tumor Detection by Using Convolution Neural Network
Authors: Samreen Ayesha , Taha Amtul Mohimin , Reddy Yasa Vishwanath , P Sathish
Published: November 2020

Nowadays, Biomedical technology plays a vital role in diagnosis and treatment of small to dangerous life threatening diseases and one of the most life threatening disease is Brain Tumor, which is the mass growth of abnormal cells in brain. Early detection and treatment of it can save the human life by preventing the further growth of abnormal cells. Detection of it can be done by analysing the Magnetic Resonance Imaging (MRI) Scans. Accurate analysis of MRI Scans need to be done to detect the brain tumor and it can be achieved by using the algorithms of artificial neural networks, although human can detect manually but possibility to human errors is more and is time consuming. This paper proposes an effective algorithm model to predict brain tumor probability by using convolution neural networks. The algorithm includes image pre-processing in which noise is reduced using Gaussian filter and morphological operations. After that, images are normalized to scale fit. Batch normalization is added to the network to speed up the training. BRATS and Kaggle image dataset are used to train and evaluate the model to get maximised accuracy. Confusion matrix is used to evaluate the performance of the maximised model.
Cloud Cover Avoidance in Satellite Systems
Authors: Narayanan Shreeram , Jagtap Soham , Fonseca Arnold Johnson , Sonkusare Reena
Published: November 2020

Cloud cover is primarily a major difficulty in the acquisition of optical satellite images and has a negative impact on the efficiency of data scheduling. Along with data scheduling, the computational power required is also increasing. Recent advances in an extensive variety of technologies have resulted in an explosion in the amount of data. Different methodologies have been used for  Object detection in remote sensing images but it remains a challenge because of its diversity and complex backgrounds. In this paper, a cloud cover detection technique based on Convolutional Neural Networks is proposed for remote sensing images. The classifying model uses a neural network where the underlying features are used to classify the image as useful or not. Results illustrate that the proposed method outperforms other state of the art methods that exist. Once classified, it will be transmitted from the satellite to the earth giving the researchers only convenient pictures to study. This will help to save a massive amount of computation, expense and time.
Reflexive Engine to Lock the System for Driving While Intoxicated – Simulation by Using LabVIEW
Authors: Kumar Kammara Bharath , Mani Ch Sudha , Naqi Mohd Abdul , Narayana S Mallesh
Published: November 2020

Drunken driving is a major issue due to which many road accidents are occurring. To overcome this many researches are going on and we also tried to develop a reflexive engine locking system In this paper we have developed a system through which when a person tries to drive by consuming alcohol will experience a automatic engine lock. By implementing this we can save lives of passengers as well as pedestrians and other people too. Today situation is worsening like for every thirty minutes accidents are happening and taking lives of many innocent people. To avoid this we are trying to implement a prototype for alcohol detection for drunk and drive. Based on threshold set, alcohol breath analyzer sense level of alcohol consumed by the driver and if it crosses the limit set it will automatically locks the engine. Due to drowsiness of driver and consumption of alcohol more number of accidents are happening. Because of this more lives are at risk. This design implements a model which saves lives of people inside and outside the vehicle.
Efficient Tumor Detection in MRI Brain Images
Authors: Y. Sri Lalitha , Katapally Manognya , Pabba Keerthana , Mudunuri Vineetha
Published: November 2020

Detection of brain of tumor is a laborious task as it involves identification, segmentation followed by detection of the tumor. It is a very challenging task to envisage uncommon structures in the image of human brain[15].    An Image processing concept called MRI can be used to visualize different structures of human body. The Magnetic Resonance images (MRI) are used to detect the uncommon portions of human brain. This paper explores different noise removal methods accompanied by Balance-contrast enhancement technique (BCET) which results in increased accuracy. Segmentation followed by canny edge detection is performed on the improved images to detect the fine edges of the abnormalities present. The model attained an accuracy of at most 98% in detecting the tumor or the abnormality in a human brain which determines the effectiveness of the proposed model.
Les Femmes anishinaabeg (Canada), la santé et l’eau : des savoirs traditionnels aux mobilisations contemporaines
Authors: Tania Castelli , Myriam Thinel , Alex-Andrée Cantin , Cloos Patrick
Published: November 2020

L’accès à une eau potable de qualité est un droit fondamental. Malgré la richesse du Canada en eau douce, plusieurs des communautés autochtones, dont les Anishinaabeg, font régulièrement face à une iniquité d’accès à une eau potable de qualité, une situation qui a des conséquences sanitaires, spirituelles et culturelles. Ces injustices découlent directement de la colonisation et des rapports inégaux entre le gouvernement canadien et les Premières Nations, ayant fortement contribué à restreindre le rôle traditionnel des femmes anishinaabeg dans le protectorat de l’eau, malgré leur lien spirituel et identitaire avec l’eau. Ces femmes font néanmoins preuve de résilience se traduisant par plusieurs initiatives de sensibilisation, de mobilisation et de revendication pour la protection de l’eau. Dans cet article, nous cherchons à montrer qu’une problématique écologique et sanitaire telle que la disponibilité d’une eau potable de qualité pour les peuples autochtones au Canada s’inscrit dans des rapports de force, passés et présents, avec l’État fédéral et les provinces. Notre article vise plus spécifiquement à : 1) montrer l’importance du manque de disponibilité d’eau potable pour les nations autochtones ; 2) décrire le rôle traditionnel des femmes anishinaabeg comme protectrices de l’eau ; 3) situer la problématique de l’eau dans son contexte colonial ; et 4) explorer les différentes mobilisations menées par des femmes autochtones, en réponse à ce problème historique et politique.
Los peligros de la industrialización. El caso del estanque del Pourra (1812-1846)
Authors: Daumalin Xavier
Published: November 2020

Depuis plus de deux siècles, les rivages de Fos-sur-Mer et de l’étang-de-Berre sont confrontés aux effets socio-économiques et environnementaux de l’industrie lourde. Depuis plus de deux siècles également, les habitants de cet espace longtemps voué à l’agropastoralisme, à l’exploitation du sel, à la pêche et aux pratiques balnéaires s’inquiètent et s’opposent plus ou moins régulièrement, ouvertement et violemment aux diverses nuisances liées à la présence usinière. Ce texte revient sur un des moments forts de cette conflictualité pluriséculaire – les émeutes des villageois de Saint-Mitre dans la première moitié du XIXe siècle –, sur ses ressorts, ses enjeux, sur ce qu’il révèle aussi des rapports de force et des inégalités sociales à l’œuvre sur ce territoire face à la maladie, à la mort, et sur les différents éléments qui fondent sa spécificité, voire son caractère atypique, au regard de ce que nous connaissons déjà des conflits similaires qui se sont produits en Provence et dans le reste du monde.
A Comprehensive Survey of Data Mining Techniques in Disease Prediction
Authors: Mullaivanan Durgadevi , R. Kalpana
Published: November 2020

In recent days, data mining has become very popular, and numerous research works have been carried out of using data mining techniques in the healthcare sector. The healthcare transactions generate a massive amount of data which are very voluminous and complex to be processed. Therefore, data mining techniques have been employed, which provides a practical methodology for transforming the massive amount of data into efficient knowledge for the process of decision making. Prediction and classification are the two forms of data analysis methods. However, it is still difficult to explore the complete literature in the healthcare domain. This chapter reviews the research overview that is done in the healthcare sector utilizing different data mining methodologies for prediction and classification of diverse diseases. Also, a detailed comparison of reviewed methods takes place for better understanding of the existing models. An extensive experimental study is also performed to analyze the performance of data mining algorithms.
Analysis of Crime Report by Data Analytics Using Python
Authors: Jones G. Maria , Winster S. Godfrey
Published: November 2020

The ever-rapid development of technology in today's world tends to provide us with a dramatic explosion of data, leading to its accumulation and thus data computation has amplified in comparison to the recent past. To manage such complex data, emerging new technologies are enabled specially to identify crime patterns, as crime-related data is escalating. These digital technologies have the potential to manipulate and also alter the pattern. To combat this, machine learning techniques are introduced which have the ability to analyse such voluminous data. In this work, the authors intend to understand and implement machine learning techniques in real time data analysis by means of Python. The detailed explanation in preparing the dataset, understanding, visualizing the data using pandas, and performance measure of algorithm is evaluated.
Automated Soil Residue Levels Detecting Device With IoT Interface
Authors: Rao Adiraju Prasanth , Reddy K. Sudheer , V. Sathiyamoorthi
Published: November 2020

Cloud computing and internet of things (IoT) are playing a crucial role in the present era of technological, social, and economic development. The novel models where cloud and IoT are integrated together are foreseen as disruptive and enable a number of application scenarios. The e-smart is an application system designed by leveraging cloud, IoT, and several other technology frameworks that are deployed on the agricultural farm to collect the data from the farm fields. The application extracts and collects the information about the residue levels of soil and crop details and the same data will be hosted in the cloud environment. The proposed e-smart application system is to analyze, integrate, and correlate datasets and produce decision-oriented reports to the farmer by using several machine learning techniques.