bluuebunny/crossref_metadata_2025_split huggingface dataset:
Satellite observations show no net change in the percentage of supraglacial debris-covered area in northern Pakistan from 1977 to 2014
Authors: Herreid Sam , Pellicciotti Francesca , Ayala Alvaro , Chesnokova Anna , Kienholz Christian , Shea Joseph , Shrestha Arun 
Published: June 2015

AbstractSpatial evolution of supraglacial debris cover on mountain glaciers is a largely unmonitored and poorly understood phenomenon that directly affects glacier melt. Supraglacial debris cover for 93 glaciers in the Karakoram, northern Pakistan, was mapped from Landsat imagery acquired in 1977, 1998, 2009 and 2014. Surge-type glaciers occupy 41% of the study area and were considered separately. The time series of debris-covered surface area change shows a mean value of zero or near-zero change for both surging and non-surging glaciers. An increase in debris-covered area is often associated with negative regional mass balances. We extend this logic to suggest that the stable regional mass balances in the Karakoram explain the zero or near-zero change in debris-covered area. This coupling of trends combined with our 37 year time series of data suggests the Karakoram anomaly extends further back in time than previously known.
Recherches sur les pratiques enseignantes et relations chercheurs-praticiens
Authors: Roditi Éric 
Published: June 2015

Cet article propose d’étudier la relation entre chercheurs et enseignants lorsque ces derniers sont engagés dans une recherche sur leurs pratiques. Il comporte une analyse des effets de cette relation sur les résultats de la recherche comme sur les apprentissages professionnels qui peuvent en résulter pour les enseignants. Il s’appuie sur trois recherches fondées sur un même cadre théorique, mais avec des problématiques différentes : comprendre des pratiques, résoudre un problème professionnel, et analyser la construction d’une pratique sur dix années d’exercice. Chaque recherche a occasionné un investissement particulier de la part des enseignants ainsi qu’une relation chercheurs-praticiens spécifique. L’analyse de leur spécificité conduit à une discussion sur l’effet de cette relation, sur les pratiques enseignantes étudiées d’une part, et sur les résultats de la recherche sur ces pratiques d’autre part.
Congenital Paraesophageal Hernia in a Cat
Authors: Tong Kim , Guillou Reunan , Vét Doc 
Published: June 2015

ABSTRACTA 3 mo old male domestic shorthair weighing 2 kg was presented for acute onset of anorexia, lethargy, paradoxical breathing, and a palpable mass effect in the cranial abdomen. Initial diagnostics and imaging suggested a pleuroperitoneal or hiatal hernia. Emergency abdominal exploration was performed, and a complex type II paraesophageal hiatal hernia was identified. The entire stomach, greater and lesser omenta, spleen, left limb of the pancreas, and the proximal segment of the descending duodenum were herniated through a discrete defect in the phrenicoesophageal ligament. After reduction of the herniated organs back into the abdomen, a phrenicoplasty, esophagopexy, and left-sided fundic gastropexy were performed. The cat recovered uneventfully from the procedure and was free of any signs of disease for at least 30 mo postoperatively. This is the first detailed report of the findings and successful surgical treatment of a complex congenital, type II paraesophageal hiatal hernia with complete herniation of the stomach, omenta, and spleen in a cat.
Cerebral Ventriculitis Associated with Otogenic Meningoencephalitis in a Dog
Authors: Wu Chih-Ching , Chang Ya-Pei 
Published: June 2015

ABSTRACT
A dog was evaluated for rapidly progressive mentation change, ataxia, and tetraparesis. The dog's neurological status deteriorated drastically. It became comatose with bilateral mydriasis, and the pupillary light reflex was absent. An anti-inflammatory dose of methylprednisolone was administered, and temporary stabilization of neurological status was achieved. MRI findings were suggestive of ventriculitis and meningoencephalitis originating from the left tympanic cavity. A gadolinium leakage phenomenon was noted, likely resulting from severe damage to the blood-cerebrospinal fluid barrier during the inflammatory process. Analysis of the cerebrospinal fluid and materials in the left tympanic cavity further confirmed the diagnosis. Following surgical and antibiotic treatment, the dog recovered well with only a mild residual head tilt. Seven months after surgery, the dog had a recurrent infection of the left tympanic cavity without intracranial involvement. A second surgery led to an uneventful recovery, and the dog was clinically normal except for a mild head tilt 3 yr after the initial presentation. This is the first report describing ventriculitis associated with otogenic meningoencephalitis in dogs and a gadolinium leakage phenomenon displayed on MRI. The long-term outcome of ventriculitis-complicated otogenic meningoencephalitis in dogs could be satisfied with prompt diagnosis and treatment.
Recorrido por el patrimonio geológico y minero del Bajo Aragón, desde Seno a Aguaviva, Mas de las Matas, Foz - Calanda y Alcorisa
Authors: Mata Perelló Josep Maria , Pocoví Juan Andrés , Sanz Balagué Joaquim , Vilaltella Jaume 
Published: June 2015

En esta ocasión se realizará un itinerario localizado en un área totalmente situada en la comarca del Bajo Aragón, desde principio a fin, entre las localidades de Seno y Alcorisa, pasando además por los municipios de Aguaviva, Foz Calanda y la Ginebrosa (en este caso, muy tangencialmente). Por otra parte, el recorrido se centrará en su totalidad en el Sistema Ibérico. Encontrándose diferentes afloramientos de los materiales mesozoicos y de los materiales cenozoicos. En el primer caso, nos encontraremos fundamentalmente con afloramientos de los materiales del Jurásico y sobretodo del Cretácico, fundamentalmente del Albiense. Precisamente, algunas de las diferentes paradas del recorrido las efectuaremos en los afloramientos de la Formación Utrillas y otros en los de la Formación Escucha. Por lo que concierne a los afloramientos de los materiales cenozoicos, cabe señalar que en su mayoría pertenecen al Oligoceno, el cual recubre parte de las formaciones mesozoicas mencionadas anteriormente. No obstante, a lo largo del recorrido nos centraremos fundamentalmente en el conocimiento del Patrimonio Geológico y Minero. Sin duda alguna, la conservación, valorización y utilización de este patrimonio es un importante factor económico a tener en cuenta.
Recorregut de recerca geològica i mineralògica per la comarca de l’Alt Urgell: des de Sant Joan Fumat i a les Bordes de Conflent i a Aós de Civís
Authors: Mata Perelló Josep Maria , Sanz Balagué Joaquim 
Published: June 2015

Itinerari realitzat el 14 de juliol de 2014. En aquesta ocasió, el recorregut de l´itinerari discorrerà íntegrament pel Sistema Pirinenc; i més concretament per la Unitat dels Apilaments Antiformes de la Zona Axial, (és a dir, per l´antigament denominada "Zona Axial Pirinenca"). Així, travessarà aquesta zona en el recorregut que es farà entre la Farga de Moles, les Bordes de Conflent i Aós de Civís; és a dir, es tallarà aquest sector en la major part del recorregut de l´itinerari. Així, al llarg de tot l´itinerari es trobaran afloraments dels materials de l´Ordovicià (amb esquistos, quarsites i calcosquistos) i del Silurià amb pissarres negres, fonamentalment). També trobarem aflorament de les granodiorites del Carbonífer. Per altra banda, el recorregut de l´itinerari discorrerà per una sola comarca, la de l´Alt Urgell, entre la Farga de Moles, Sant Joan Fumat, les Bordes de Conflent i Aós de Civís.
GASTRONOMSKI SADRŽAJI RURALNOG TURIZMA SRBIJE
Authors: Marinoski Naume , Stamenković Predrag , Conić Momčilo 
Published: June 2015

Agroturizam terminološku upotrebu u etimološkom pogledu nalazi u agraru, što znači da je osnova razvoja ovog oblika turizma poljoprivreda. Ali poljoprivreda ne podrazumeva samo tradicionalne i ekstenzivne forme, već i napredne koje su intenzivnog karaktera, kao na primer razvijeni kombinatski tip. Nije sporno da se ruralni turizam vezuje, između ostalih i za poljoprivredne aktivnosti. Po ovoj logici on pripada agroturizmu. Međutim, u ovom kontekstu se radi o tradicionalnim oblicima zemljoradnje i stočarstva. Njihovo unapređenje kao deo turističke ponude podrazumeva očuvanje atraktivnosti. Pored toga, činjenica da se aktivnosti ruralnog turizma ne svode samo za poljoprivredu, već da se u okviru njega kao ponuda uključuju i uslužno-tradicionalno zanatstvo, herbalne, gastronomske, lovne i ribolovne aktivnosti, aktivnosti etnografskog karaktera i kreativne aktivnosti socijalne prirode ukazuje na to da je on šira kategorija od agrarnog turizma.
L’hégémonie et les programmes d’éducation autochtone au Mexique et au Brésil (1940-1970)
Authors: Duque  Platero Lígia , Fiuza Alice 
Published: June 2015

Dans cet article, l’auteure présente des renseignements sur les programmes d’éducation autochtone des agences indigénistes du Brésil et du Mexique, entre 1940 et 1970, et elle propose également un survol de l’influence de ces programmes sur les processus de formation d’hégémonie des États au sens large, au sein des peuples amérindiens de ces pays durant la même période. Les écoles de l’Institut national indigéniste (INI), au Mexique, et surtout celles du Service de protection de l’Indien (SPI), au Brésil, ont mis l’accent sur l’enseignement de la langue nationale dans leurs programmes et elles ont exercé une influence sur la création de l’idée d’existence de la nationalité « métisse », visant le « développement » et l’« intégration » des peuples autochtones à la nation. Dans les deux pays, les missions religieuses ont participé à l’éducation autochtone, notamment le Summer Institute of Linguistics (SIL). Au Mexique, la participation des promoteurs culturels bilingues en tant qu’« intermédiaires culturels » entre les institutions indigénistes et les communautés s’est avérée un élément clé pour la formation de l’hégémonie. Au Brésil, les enseignants étaient « non autochtones » et leur influence fut moins importante.
Les origines huronnes-wendates de Kanesatake
Authors: Lozier Jean-François 
Published: June 2015

Cet article propose de jeter un nouvel éclairage sur l’histoire des collectivités « iroquoises » de la région de Montréal pendant la deuxième moitié du xviie siècle, et plus particulièrement sur celle de Kanesatake, en accentuant l’apport fondateur d’une population d’origine huronne-wendate. Des Hurons, rejoignant la vallée du Saint-Laurent après des décennies de résidence plus ou moins contrainte en Iroquoisie, jouent en effet un rôle de premier plan vers 1667 lors de l’établissement de Kentake (La Prairie, plus tard Kahnawake), puis, à la suite d’une rupture, de Kanesatake (La Montagne, devenue ensuite Sault-au-Récollet et Lac-des-Deux-Montagnes) en 1675. Bien que ces individus d’origine huronne aient été voués à l’assimilation iroquoise à moyenne et longue échéance, les archives recèlent quelques indices des identités et solidarités résiduelles qui ne s’estompent que graduellement. Vers 1740, une crise politique, dont l’explication nous invite à faire un détour par Détroit, vient rappeler ces origines huronnes de Kanesatake.
Les actualités de la tente tremblante chez les Eeyous
Authors: Wattez Paul 
Published: June 2015

La cérémonie de la tente tremblante,koaspskikan, est l’un des rituels les plus documentés de la littérature anthropologique classique. Les analyses qui en ont été faites sont pour la plupart descriptives. L’observation d’une cérémonie de la tente tremblante en 2009 au sein de la communauté eeyoue de Waswanipi (Cris du Québec) incite à s’y intéresser de nouveau en anthropologie du point de vue contextuel. Plusieurs pistes de réflexions et d’interrogations sont élaborées ici à partir d’informations empiriques et bibliographiques rassemblées autour de trois axes : les spécificités de la réitération de la cérémonie de la tente tremblante à Waswanipi, dans le monde eeyou et à l’échelle algonquienne, les transformations de l’économie, de la démographie et de la religion chez les Eeyous, et la réinterprétation des descriptions sur la tente tremblante d’après deux modèles anthropologiques : l’un, classique, sur le rituel et l’autre, contemporain, sur la spiritualité.
Effects of postdepositional processing on nitrogen isotopes of nitrate in the Greenland Ice Sheet Project 2 ice core
Authors: Geng Lei , Zatko Maria C. , Alexander Becky , Fudge T. J. , Schauer Andrew J. , Murray Lee T. , Mickley Loretta J. 
Published: June 2015

AbstractRecords of ice core nitrate and its isotopes hold the potential to assess past atmospheric conditions regarding NOx and oxidant levels. However, relating such records to past atmospheric conditions requires a site‐specific understanding of the postdepositional processing of snow nitrate. We report δ15N(NO3−) records from the Greenland Ice Sheet Project 2 (GISP2) ice core over major climate transitions. Model calculations and comparison with records of parameters influencing UV‐driven postdepositional processing of snow nitrate suggest that the observed variability in GISP2 δ15N(NO3−) over major climate transitions is primarily driven by changes in the degree of postdepositional loss of snow nitrate. Estimates of the fractional loss of snow nitrate is (16–23)% in the Holocene and (45–53)% in the glacial period, suggesting a (41 ± 32)% lower nitrate depositional flux to Greenland during the glacial period relative to the Holocene.
Potential of bias correction for downscaling passive microwave and soil moisture data
Authors: Kornelsen Kurt C. , Cosh Michael H. , Coulibaly Paulin 
Published: June 2015

AbstractPassive microwave satellites such as Soil Moisture and Ocean Salinity or Soil Moisture Active Passive observe brightness temperature (TB) and retrieve soil moisture at a spatial resolution greater than most hydrological processes. Bias correction is proposed as a simple method to disaggregate soil moisture to a scale more appropriate for hydrological applications. Temporal stability of soil moisture and TB was demonstrated at the Little Washita and Little River Experimental Watersheds using in situ observations and the Community Microwave Emissions Model. Decomposition of the mean square difference (MSD) between the watershed average soil moisture and TB showed that bias was a major contributor to differences between watershed average and local‐scale soil moisture and TB, particularly at sites with high MSD. The mean RMSD between watershed average and local soil moisture was 0.04 m3 m−3 and 0.06 m3 m−3 at Little River and Little Washita, respectively. Following a simple bias correction the RMSD was reduced to 0.03 m3 m−3 at both sites. Considering multiple incidence angles at both horizontal and vertical polarization, bias correction of watershed average TBV reduced the RMSD by approximately 75% and 45% and TBH RMSD by 68% and 36% for Little River and Little Washita, respectively, at all incidence angles. Therefore, at subsatellite grid scale, bias correction can be considered a viable technique for downscaling passive microwave observations and soil moisture retrievals.
Catchment coevolution: A useful framework for improving predictions of hydrological change?
Authors: Troch Peter A. , Lahmers Tim , Meira Antonio , Mukherjee Rajarshi , Pedersen Jonas W. , Roy Tirthankar , Valdés‐Pineda Rodrigo 
Published: June 2015

AbstractThe notion that landscape features have coevolved over time is well known in the Earth sciences. Hydrologists have recently called for a more rigorous connection between emerging spatial patterns of landscape features and the hydrological response of catchments, and have termed this concept catchment coevolution. In this paper we review recent literature on this subject and attempt to synthesize what we have learned into a general framework that would improve predictions of hydrologic change. We first present empirical evidence of the interaction and feedback of landscape evolution and changes in hydrological response. From this review it is clear that the independent drivers of catchment coevolution are climate, geology, and tectonics. We identify common currency that allows comparing the levels of activity of these independent drivers, such that, at least conceptually, we can quantify the rate of evolution or aging. Knowing the hydrologic age of a catchment by itself is not very meaningful without linking age to hydrologic response. Two avenues of investigation have been used to understand the relationship between (differences in) age and hydrological response: (i) one that is based on relating present landscape features to runoff processes that are hypothesized to be responsible for the current fingerprints in the landscape; and (ii) one that takes advantage of an experimental design known as space‐for‐time substitution. Both methods have yielded significant insights in the hydrologic response of landscapes with different histories. If we want to make accurate predictions of hydrologic change, we will also need to be able to predict how the catchment will further coevolve in association with changes in the activity levels of the drivers (e.g., climate). There is ample evidence in the literature that suggests that whole‐system prediction of catchment coevolution is, at least in principle, plausible. With this imperative we outline a research agenda that implements the concepts of catchment coevolution for building a holistic framework toward improving predictions of hydrologic change.
Aerobic Oxidation Catalysis with Air or Molecular Oxygen and Ionic Liquids
Authors: Gunasekaran Nanjappan 
Published: June 2015

AbstractSelective aerobic oxidation reactions are most important and challenging transformations in both academic research and the chemical industry. Over the past decade, ionic liquids have gained recognition in the context of green organic synthesis as they are not only possible environmentally benign solvents but also serve as a liquid support or catalyst in various chemical processes. Hence, in recent years, there has been a growing interest in the development of aerobic oxidation reactions combined with ionic liquids and molecular oxygen or air which has led to the improvement of green catalytic systems capable of achieving high selectivity and yields. Thus, this review aims to give an overview of the most important advances made by in the field of aerobic oxidation reactions in combination with either molecular oxygen or air as oxidant and ionic liquids as solvent, liquid support or catalyst.magnified image
Low Pressure Asymmetric Hydrogenation of Quinolines using an Annulated Planar Chiral N‐Ferrocenyl NHC‐Iridium Complex
Authors: John Joshni , Wilson‐Konderka Cody , Metallinos Costa 
Published: June 2015

AbstractAnnulated planar chiral N‐ferrocenylimidazolones, obtained by acid‐mediated cyclization of diphenylmethanol derivatives, may be reduced with diisobutylaluminium hydide (DIBAL‐H) to afford a series of surprisingly stable and isolable hemiaminal ether aminals. Two of these derivatives can be oxidized with triphenylcarbenium tetrafluoroborate to imidazolinium salt precursors of N‐heterocyclic carbenes (NHCs). Deprotonation of these salts in the presence of (cyclooctadiene)iridium chloride dimer {[Ir(COD)Cl]2} provides chiral coordination complexes bearing N‐ferrocenyl NHCs with unique rigid tetracyclic frameworks. Cationic analogues of these complexes catalyze the asymmetric hydrogenation of 2‐substituted quinolines under very mild conditions (1 mol% complex, 1 mol% PPh3, 1–5 atm H2, toluene, 25 °C) in appreciable enantioselectivity (up to 90:10 er). The sensitivity of the hydrogenation process to changes in the phosphine additive suggests that an outer‐sphere reaction mechanism may be involved, as proposed for a related achiral NHC‐Ir complex reported by Crabtree and co‐workers.magnified image
Iron‐Catalyzed Esterification of Benzyl CH Bonds to Form α‐Keto Benzyl Esters
Authors: He Yue , Mao Jincheng , Rong Guangwei , Yan Hong , Zhang Guoqi 
Published: June 2015

AbstractAn atom‐economic and efficient non‐precious metal‐catalyzed esterification of benzyl CH bonds has been developed. A variety of α‐keto benzyl esters have been accessed in good yields through the reactions between benzyl derivatives and benzoylformic acids using iron trifluoride as a catalyst in the presence of di‐tert‐butyl peroxide under an inert atmosphere. This strategy provides a straightforward access to linearly expanded α‐keto benzyl esters. A plausible reaction mechanism is proposed.magnified image
Ultrastructural Evidence of Serous Gland Polymorphism in the Skin of the Tungara Frog Engystomops pustulosus (Anura Leptodactylidae)
Authors: Delfino Giovanni , Giachi Filippo , Malentacchi Cecilia , Nosi Daniele 
Published: June 2015

ABSTRACTThree types of serous products were detected in the syncytial cutaneous glands of the leptodactylid tungara frog, Engystomops pustulosus: type Ia, granules with wide halos and variable density cores; type Ib, high density granules without halos; and type II, vesicles containing a finely dispersed product. Ultrastructural evidence revealed that these products were manufactured by different serous gland types and excluded that they represented different steps in the secretory cycle of a single gland type. Indeed, secretory maturation affecting the products released by the Golgi apparatus proceeded through different mechanisms: confluence (vesicles), interactions between syncytium and secretory product (type Ib granules), and a combination of both processes (type Ia granules). In conclusion, this investigation of secretory maturation was shown to be a suitable approach for the identification of serous gland polymorphism and demonstrated that the tungara frog belongs to the minority of anuran species characterized by this peculiar morpho‐functional trait. Anat Rec, 298:1659–1667, 2015. © 2015 Wiley Periodicals, Inc.
Iron(III)‐Selective Chelation‐Enhanced Fluorescence Sensing for In Vivo Imaging Applications
Authors: Guo Lin E. , Liu Xin Yi , Wang Huan , Chen Qiu Ling , Wang Guang Ke , Luo Kaijun , Mi Qi Li , Zhou Ying , Zhang Jun Feng 
Published: June 2015

AbstractA “turn‐on” pattern Fe3+‐selective fluorescent sensor was synthesized and characterized that showed high fluorescence discrimination of Fe3+ over Fe2+ and other tested ions. With a 62‐fold fluorescence enhancement towards Fe3+, the probe was employed to detect Fe3+ in vivo in HeLa cells and Caenorhabditis elegans, and it was also successfully used to elucidate Fe3+ enrichment and exchange infected by innexin3 (Inx3) in hemichannel‐closed Sf9 cells.