bluuebunny/crossref_metadata_2025_split huggingface dataset:
Discovery of an Enormous Lyα Nebula in a Massive Galaxy Overdensity at z = 2.3
Authors: Cai Zheng , Fan Xiaohui , Yang Yujin , Bian Fuyan , Prochaska J. Xavier , Zabludoff Ann , McGreer Ian , Zheng Zhen-Ya , Green Richard , Cantalupo Sebastiano , Frye Brenda , Hamden Erika , Jiang Linhua , Kashikawa Nobunari , Wang Ran 
Published: March 2017

Abstract
Enormous Lyα nebulae (ELANe), unique tracers of galaxy density peaks, are predicted to lie at the nodes and intersections of cosmic filamentary structures. Previous successful searches for ELANe have focused on wide-field narrowband surveys or have targeted known sources such as ultraluminous quasi-stellar objects (QSOs) or radio galaxies. Utilizing groups of coherently strong Lyα absorptions, we have developed a new method to identify high-redshift galaxy overdensities and have identified an extremely massive overdensity, BOSS1441, at

. In its density peak, we discover an ELAN that is associated with a relatively faint continuum. To date, this object has the highest diffuse Lyα nebular luminosity of

erg s−1. Above the 2σ surface brightness limit of SB

erg s−1 cm−2 arcsec−2, this nebula has an end-to-end spatial extent of 442 kpc. This radio-quiet source also has extended C iv

and He ii

emission on

scales. Note that the Lyα, He ii, and C iv emissions all have double-peaked line profiles. Each velocity component has an FWHM of ≈700–1000 km s−1. We argue that this Lyα nebula could be powered by shocks due to an active galactic nucleus–driven outflow or photoionization by a strongly obscured source.
On the Evolution of Galaxy Spin in a Cosmological Hydrodynamic Simulation of Galaxy Clusters
Authors: Choi Hoseung , Yi Sukyoung K. 
Published: March 2017

Abstract
The traditional view of the morphology–spin connection is being challenged by recent integral field unit observations, as the majority of early-type galaxies are found to have a rotational component that is often as large as a dispersion component. Mergers are often suspected to be critical in galaxy spin evolution, yet the details of their roles are still unclear. We present the first results on the spin evolution of galaxies in cluster environments through a cosmological hydrodynamic simulation. Galaxies spin down globally with cosmic evolution. Major (mass ratios > 1/4) and minor (1/4

mass ratios > 1/50) mergers are important contributors to the spin-down in particular in massive galaxies. Minor mergers appear to have stronger cumulative effects than major mergers. Surprisingly, the dominant driver of galaxy spin-down seems to be environmental effects rather than mergers. However, since multiple processes act in combination, it is difficult to separate their individual roles. We briefly discuss the caveats and future studies that are called for.
Gravitational Waves from F-modes Excited by the Inspiral of Highly Eccentric Neutron Star Binaries
Authors: Chirenti Cecilia , Gold Roman , Miller M. Coleman 
Published: March 2017

Abstract
As gravitational wave instrumentation becomes more sensitive, it is interesting to speculate about subtle effects that could be analyzed using upcoming generations of detectors. One such effect that has great potential for revealing the properties of very dense matter is fluid oscillations of neutron stars. These have been found in numerical simulations of the hypermassive remnants of double neutron star mergers and of highly eccentric neutron star orbits. Here we focus on the latter and sketch out some ideas for the production, gravitational-wave detection, and analysis of neutron star oscillations. These events will be rare (perhaps up to several tens per year could be detected using third-generation detectors such as the Einstein Telescope or the Cosmic Explorer), but they would have unique diagnostic power for the analysis of cold, catalyzed, dense matter. Furthermore, these systems are unusual in that analysis of the tidally excited f-modes of the stars could yield simultaneous measurements of their masses, moments of inertia, and tidal Love numbers, using the frequency, damping time, and amplitude of the modes. They would thus present a nearly unique opportunity to test the I-Love-Q relation observationally. The analysis of such events will require significant further work in nuclear physics and general relativistic nonlinear mode coupling, and thus we discuss further directions that will need to be pursued. For example, we note that for nearly grazing encounters, numerical simulations show that the energy delivered to the f-modes may be up to two orders of magnitude greater than predicted in the linear theory.
Diffusion and Clustering of Carbon Dioxide on Non-porous Amorphous Solid Water
Authors: He Jiao , Emtiaz Shahnewaj M. , Vidali Gianfranco 
Published: March 2017

Abstract
Observations by ISO and Spitzer toward young stellar objects showed that CO2 segregates in the icy mantles covering dust grains. Thermal processing of the ice mixture was proposed as being responsible for the segregation. Although several laboratories studied thermally induced segregation, a satisfying quantification is still missing. We propose that the diffusion of CO2 along pores inside water ice is the key to quantify segregation. We combined Temperature Programmed Desorption and Reflection Absorption InfraRed Spectroscopy to study how CO2 molecules interact on a non-porous amorphous solid water (np-ASW) surface. We found that CO2 diffuses significantly on an np-ASW surface above 65 K and clusters are formed at well below one monolayer. A simple rate equation simulation finds that the diffusion energy barrier of CO2 on np-ASW is 2150 ± 50 K, assuming a diffusion pre-exponential factor of 1012 s−1. This energy should also apply to the diffusion of CO2 on the wall of pores. The binding energy of CO2 from CO2 clusters and CO2 from H2O ice has been found to be 2415 ± 20 K and 2250 ± 20 K, respectively, assuming the same prefactor for desorption. CO2–CO2 interaction is stronger than CO2–H2O interaction, in agreement with the experimental finding that CO2 does not wet the np-ASW surface. For comparison, we carried out similar experiments with CO on np-ASW, and found that the CO–CO interaction is always weaker than CO–H2O. As a result, CO wets the np-ASW surface. This study should be of help to uncover the thermal history of CO2 on the icy mantles of dust grains.
Searching for the Expelled Hydrogen Envelope in Type I Supernovae via Late-Time Hα Emission
Authors: Vinko J. , Pooley D. , Silverman J. M. , Wheeler J. C. , Szalai T. , Kelly P. , MacQueen P. , Marion G. H. , Sárneczky K. 
Published: March 2017

Abstract
We report the first results from our long-term observational survey aimed at discovering late-time interaction between the ejecta of hydrogen-poor Type I supernovae (SNe I) and the hydrogen-rich envelope expelled from the progenitor star several decades/centuries before explosion. The expelled envelope, moving with a velocity of ∼10–100 km s−1, is expected to be caught up by the fast-moving SN ejecta several years/decades after explosion, depending on the history of the mass-loss process acting in the progenitor star prior to explosion. The collision between the SN ejecta and the circumstellar envelope results in net emission in the Balmer lines, especially Hα. We look for signs of late-time Hα emission in older SNe Ia/Ibc/IIb with hydrogen-poor ejecta via narrowband imaging. Continuum-subtracted Hα emission has been detected for 13 point sources: 9 SN Ibc, 1 SN IIb, and 3 SN Ia events. Thirty-eight SN sites were observed on at least two epochs, from which three objects (SN 1985F, SN 2005kl, and SN 2012fh) showed significant temporal variation in the strength of their Hα emission in our Direct Imaging Auxiliary Functions Instrument (DIAFI) data. This suggests that the variable emission is probably not due to nearby H ii regions unassociated with the SN and hence is an important additional hint that ejecta–circumstellar medium interaction may take place in these systems. Moreover, we successfully detected the late-time Hα emission from the Type Ib SN 2014C, which was recently discovered as a strongly interacting SN in various (radio, infrared, optical, and X-ray) bands.
Soigner une colonie naissante : les médecins de l’armée d’Afrique, les fièvres et la quinine, 1830-1870
Authors: Fredj Claire 
Published: March 2017

En Algérie, au début de la conquête, les soldats français sont confrontés à une forte mortalité due aux fièvres paludéennes. Le remède contre le paludisme, le sulfate de quinine, est mis au point en 1820 et sa consommation s’accroît considérablement avec l’occupation de la colonie. Il devient un produit couramment utilisé par la population militaire, voire au-delà puisque les médecins militaires ont à traiter des civils européens et algériens, urbains et ruraux. Comment et sous quelle forme la quinine entre-t-elle dans l’arsenal thérapeutique des médecins de l’armée, distributeurs majoritaires de ce médicament et comment se diffuse-t-elle en Algérie au sein des populations militaires et civiles ? Cet article explore les voies par lesquelles l’administration militaire approvisionne l’armée d’Afrique et les questions économiques qui s’y rapportent – l’administration militaire s’inquiétant régulièrement des coûts élevés provoqués par l’usage massif d’un produit cher. Il s’intéresse ensuite à la manière dont les populations concernées ont adopté ce médicament et à ce que cela peut signifier en termes de demande sociale de soins.
La publicité des débats parlementaires : un triomphe pour l’argumentation ?
Authors: Blanc Félix 
Published: March 2017

La distinction entre persuader et convaincre a souvent servi à disqualifier les passions soulevées par l’éloquence antique, qui aurait conduit les assemblées populaires à céder au charme des démagogues. À l’inverse, nous disent Condorcet et Perelman, la publicité des débats parlementaires entre représentants élus garantirait le triomphe d’arguments évalués in fine par le jugement « froids et sévères » de citoyens élevés au rang d’« auditoire universel ». Avec l’avènement de la publicité, le recours aux passions n’a pas pour autant disparu de l’horizon des gouvernements représentatifs. Entre l’espace public des Lumières et la propagande des démocraties de masse, tels que les a décrits Habermas, la Révolution française a donné voix à des formes mixtes de rhétorique qui déjouent les catégories traditionnelles de la persuasion et de la conviction, du délibératif et de l’épidictique, pour laisser libre cours à l’usage stratégique de la publicité, par lequel Condorcet et Barère parvinrent à gagner l’assentiment de la Législative et de la Convention.
L’indignation entre pitié et dégoût : les ambiguïtés d’une émotion morale
Authors: Cordell Crystal 
Published: March 2017

Résumé L’indignation est souvent comprise comme la traduction d’une évaluationmorale par essence juste. Cependant, il convient d’interroger les ambiguïtés de cette émotion morale. Un détour par la généalogie de l’indignation permet dans un premier temps de proposer une comparaison des conceptions anciennes et modernes de l’indignation. Ces dernières présupposent une notion universaliste de la dignité et s’opposent ainsi non seulement à l’injustice, comme c’est le cas de la nemesis ancienne, mais aussi à l’indignité. La contribution s’attache dans un second temps à repérer les sources de l’indignation moderne, en particulier la pitié et le dégoût. Il apparaît que l’indignation compatissante opère une distanciation entre le « spectateur » et la victime, tandis que l’indignation dégoûtée engage une démarche davantage réflexive conduisant à renforcer la distinction entre in-groups et out-groups. Les apports de la neurologie cognitive ainsi que de la psychologie sociale sont ensuite convoqués pour étayer la thèse d’une homologie entre indignation morale et dégoût primaire. Enfin, les effets politiques à la fois positifs et négatifs de l’indignation sont étudiés.
La interactividad en el periodismo digital latinoamericano. Un análisis de los principales cibermedios de Colombia, México y Ecuador (2016)
Authors: Barredo-Ibáñez Daniel , Díaz-Cerveró Elba 
Published: March 2017

América Latina, a grandes rasgos, es un continente con varios niveles contextuales, dependientes de las características históricas, económicas, políticas y sociales. Con todo, hay aspectos que –como la brecha tecnológica- se reproducen en mayor o menor medida en los distintos países. Dicha brecha promueve unas sociedades parcialmente desconectadas –y, por tanto, invisibilizadas- y tiende a aminorar las posibilidades de innovación y desarrollo del periodismo digital. Metodología: En este estudio, y a partir de un análisis de contenido, hemos analizado la gestión de la interactividad en 87 cibermedios de Colombia, México y Ecuador durante 2016. Resultados y conclusiones: Los resultados muestran una baja implementación general de las opciones de interactividad en los ecosistemas digitales de estos tres países latinoamericanos.
Figuras do direito na Fenomenologia do Espírito a fenomenologia como doutrina do espírito objetivo?
Authors: Kervégan Jean-François , Calvet de Magalhães Theresa , A. Cattoni de Oliveira Marcelo 
Published: March 2017

A Fenomenologia do Espírito ocupa um lugar à parte na obra de Hegel. Isso se comprova muito simplesmente quando se interroga sobre a posição que ela poderia ter, no sistema hegeliano, em sua organização definitiva, aquela que a Enciclopédia das Ciências Filosóficas apresenta, de modo muito condensado. É manifesto que o que se intitula aqui (nas 2ª e 3ª edições) “Fenomenologia do Espírito”, a saber, o momento mediano da doutrina do espírito subjetivo que trata da consciência, só corresponde a uma parte, estreitamente circunscrita, do propósito da obra de 1807: os cinco primeiros capítulos, reagrupados eles mesmos em três seções que correspondem às três primeiras subdivisões da “Fenomenologia do Espírito” da Enciclopédia – “A consciência como tal” (em 1807: “Consciência”); “A consciência de si” ou “A autoconsciência” (em 1807: idem); e “A razão” (em 1807: idem). Podemos compreender, então, que reputados comentaristas tenham sido tentados a concluir que há um recobrimento global do plano da “Filosofia do Espírito” da Enciclopédia e do plano da Fenomenologia – o capítulo VI desta torna-se, então, um primeiro esboço da doutrina do espírito objetivo; e os capítulos VII e VIII, uma antecipação da doutrina sistemática do espírito
absoluto.
Possibilities of developing novel potent antitumor agents from the leaves of <em>Cryptomaria japonica</em>
Authors: Basu Laxmi Rani , De Amiyangshu , Sarkar Pradipta , Karak Prithviraj , Dastidar Sujata G 
Published: March 2017

<p>During past few decades cancer has remained as the largest cause of mortality worldwide and number of patients suffering from cancer has been increasing at a fast rate. Hence medical research during the last few decades has been concentrating on identification and characterization of new synthetic pharmacological compounds to overcome this enormous problem. Leaf extracts of coniferous plant <em>Cryptomeria japonica</em> being known for their strong antibacterial and antifungal functions were selected to determine their antitumor/anticancer potentialities.</p><p>Methanolic extract of leaves were tested to determine its antitumor action in standard murine model of Ehrlich Ascites Carcinoma (EAC). Graded doses of the extract were given intraperitoneally to batches of mice, who received EAC challenge after 3hr. Treatment with same amounts of extract was continued for 9 consecutive days. Protective capacity of the leaf extract was evaluated in animals.</p><p>Statistically significant protection was observed with respect to different parameters including tumor volume , tumor cell count , viable tumor cell count, non- viable tumor cell count , mean survival time and increase in life span. Simultaneously hematological parameters were restored in treated mice vis-à-vis untreated control animals. Furthermore, the extract revealed distinct cytotoxic property, which may be the relevant reason of its anticancer/antitumor function.</p>This study shows efficacy of methanolic extract of leaves of <em>Cryptomeria japonica </em>as a probable antitumor/anticancer agent. Phytochemical analysis of the extract showed presence of flavonoids, which are known to possess significant anticancer activity. Thus there is a definite possibility of developing novel anticancer drugs from such plant products
<em>In silico</em> investigations revealed four potential colon cancer drugs from phytochemicals in <em>Zingiber officinale</em>
Authors: Ezebuo Fortunatus Chidolue , Lukong Colin B , Uzochukwu Ikemefuna C , Okafor Irene N 
Published: March 2017

<p align="left">Cancer is a difficult disease to treat, and few effective drugs are available. Hence, it is of great importance to develop effective anti-cancer therapeutic agents with well-defined pharmacokinetic properties.<strong> </strong>Although, ginger (<em>Zingiber officinale</em>) has a number of proven pharmacological activities, its effect on colon cancer has not received much attention. This study therefore investigated the potential colon cancer drug of compounds found in ginger. Dihydropyrimidine dehydrogenase was modeled using comparative homology modeling and virtual screening was performed locally on a Linux platform using AutoDock Vina<sup>®</sup>. The results showed that human dihydropyrimidine dehydrogenase is a homolog of pig dihydropyrimidine dehydrogenase. The leads of potential colon cancer drugs were beta-sitosterol, 6-Shogoal, Alloaromadedrene, and Zingiberol. They had similar binding site with levamisole for tumor necrosis factor ligand superfamily member 6 with His 148 and Tyr 192 common at their binding site whereas they had different binding sites from 5-fluorouracil for dihydropyrimidine dehydrogenase. The leads had better bioactivities compared with reference drugs (5-flourouracil and Levamisole) approved clinically for the treatment of colon cancer. <em>In vitro</em>, <em>ex vivo</em> and/or <em>in vivo</em> validations of the leads against colon cancer are recommended. <strong></strong></p>
Technical note: On the intercalibration of HIRS channel 12 brightness temperatures following the transition from HIRS 2 to HIRS 3/4 for ice saturation studies
Authors: Gierens Klaus , Eleftheratos Kostas 
Published: March 2017

Abstract. In the present study we explore the capability of the intercalibrated HIRS brightness temperature data at channel 12 (the HIRS water vapour channel; T12) to reproduce ice supersaturation in the upper troposphere during the period 1979–2014. Focus is given on the transition from the HIRS 2 to the HIRS 3 instrument in the year 1999, which involved a shift of the central wavelength in channel 12 from 6.7 to 6.5 µm. It is shown that this shift produced a discontinuity in the time series of low T12 values ( < 235 K) and associated cases of high upper-tropospheric humidity with respect to ice (UTHi  > 70 %) in the year 1999 which prevented us from maintaining a continuous, long-term time series of ice saturation throughout the whole record (1979–2014). We show that additional corrections are required to the low T12 values in order to bring HIRS 3 levels down to HIRS 2 levels. The new corrections are based on the cumulative distribution functions of T12 from NOAA 14 and 15 satellites (that is, when the transition from HIRS 2 to HIRS 3 occurred). By applying these corrections to the low T12 values we show that the discontinuity in the time series caused by the transition of HIRS 2 to HIRS 3 is not apparent anymore when it comes to calculating extreme UTHi cases. We come up with a new time series for values found at the low tail of the T12 distribution, which can be further exploited for analyses of ice saturation and supersaturation cases. The validity of the new method with respect to typical intercalibration methods such as regression-based methods is presented and discussed.
The use of bed sediments in water quality studies and monitoring programs
Authors: Horowitz Arthur J. , Elrick Kent A. 
Published: March 2017

Abstract. In most water quality monitoring programs, either filtered water (dissolved) or suspended sediment (either whole water or separated suspended sediment) are the traditional sample media of choice. This results both from regulatory requirements and a desire to maintain consistency with long-standing data collection procedures. Despite the fact that both bed sediments and/or flood plain deposits have been used to identify substantial water quality issues, they rarely are used in traditional water quality monitoring programs. The usual rationale is that bed sediment chemistry does not provide the temporal immediacy that can be obtained using more traditional sample media (e.g., suspended sediment, water). However, despite the issue of temporal immediacy, bed sediments can be used to address/identify certain types of water quality problems and could be employed more frequently for that purpose. Examples where bed sediments could be used include: (1) identifying potential long-term monitoring sites/water quality hot spots, (2) establishing a water quality/geochemical history for a particular site/area, and (3) as a surrogate for establishing mean/median chemical values for suspended sediment.
Metaplastic Ossification of the Temporal Artery with Osteoclast-Like Giant Cells: A Mimicker of Giant Cell (Temporal) Arteritis
Authors: Sekulic Miroslav , Truskinovsky Alexander M. 
Published: March 2017

Purpose To describe a patient presenting with suspected giant cell (temporal) arteritis (GCA) in whom subsequent temporal artery biopsy showed luminal narrowing by medial calcification, metaplastic ossification, and fibrointimal proliferation, consistent with calciphylaxis. Methods A 55-year-old man with end-stage renal disease presented with unilateral loss of vision and elevated erythrocyte sedimentation rate and was initially treated as though he had GCA; however, a subsequent temporal artery biopsy showed marked luminal narrowing by medial calcification, metaplastic ossification, and fibrointimal proliferation, consistent with calciphylaxis. In addition, the tunica media of the affected artery contained multinucleate giant cells, but these represented osteoclasts and foreign body giant cells reacting to calcium, rather than a part of GCA. Results This is a rare report of metaplastic ossification and the finding of non-GCA-related giant cells in the tunica media of the temporal artery, thus representing a clinical and histopathologic mimicker of GCA. Conclusions The clinical differential diagnosis of GCA includes other etiologies that can present similarly; however, temporal artery biopsy can discern the underlying pathology. Importantly, the identification of giant cells is not required for the diagnosis of GCA, and likewise, as our case shows, the finding of giant cells in the wall of a temporal artery does not always imply a diagnosis of GCA.