bluuebunny/crossref_metadata_2025 huggingface dataset:
Les forêts littorales en milieu dunaire : l'exemple de la Réserve Biologique Domaniale de Merlimont (Pas-de-Calais)
Authors: Petit-Berghem Yves , Dubois Jean-Jacques
Published: January 2018

Forests on coastal dunes : the example of the National Biological Reserve of Merlimont (Pas-de-Calais).

The authors emphasize the special nature of the birchwood in the moist soils of coastal dunes of Merlimont (Pas-de-Calais). The birchwood is the last stage of a successional process which appears on a sequential air photos analysis between 1947 and 1989. A structural complexity of the coastal forest can be well defined only in the inner part of the central depression between the dune ridges. Dynamic processes can be described as dominant in the vegetation landscape as follow :

-on the foredune ridge and on the western part of the inter-dune flat area, a linear succession of marram grass and shrubs,

-on the eastern part of the inter-dune flat area and on the hollows of the reardune ridge, a cyclic fluctuation in small clearings and borders of the birchwood (inner and outer dynamics),

-in the transition area a nuclear colonization with patches of wind-bowed trees.
Reconnaissance et fonctionnement des hydrosystèmes souterrains dans les dunes et les Bas-Champs de Merlimont (Pas-de-Calais)
Authors: Louche Barbara , Bracq Pierre , Crampon Norbert , Colbeaux Jean-Pierre
Published: January 2018

Au sein des sables composant les dunes littorales de la Réserve biologique de Merlimont (Pas-de-Calais, Nord de la France), il existe une réserve d'eau. En effet, ces dunes sont baignées par une nappe libre souvent très proche de la surface topographique. L'eau est visible à la faveur de pannes (dépressions dunaires pouvant être ennoyées lors de la remontée de la nappe). La connais¬ sance de l'importance et du fonctionnement de cette nappe dunaire est indispensable. En effet, la disparition ou la préservation des richesses floristiques et faunistiques dont certaines sont caractéristiques du domaine littoral dépendent de celle-ci. L'alimentation de cette nappe étant assurée, au moins en grande partie, par les précipitations, une étude de l'évolution piézométrique de la nappe, notamment par un suivi des niveaux dans les pannes, a été entreprise, corrélativement à l'évolution pluviométrique. Sachant aussi que, sur l'ensemble du domaine deux nappes se superposent : celle des dunes et celle de la craie, une étude a également été réalisée grâce à un suivi de l'aquifère crayeux dans la Réserve biologique de Merlimont et sur les coteaux situés à l'est, afin de mettre en évidence la présence ou l'absence d'échanges verticaux entre ces deux unités.

L'acquisition de données ayant débuté le 30 mars 1994, un premier état concernant le fonctionnement hydrogéologique de la nappe dunaire peut être proposé. Parallèlement, une comparaison des niveaux piézométriques concernant l'aquifère crayeux en différents points avec la piézométrie de la nappe dunaire a permis de démontrer l'existence d'une alimentation de l'aquifère crayeux par l'aquifère dunaire pardrainance normale. Néanmoins, un minimum d'une année hydrologique est nécessaire pour une approche plus précise du comportement des hydrosystèmes.
Les politiques urbaines en France et en Grande-Bretagne : éléments pour une approche comparative
Authors: Booth Philipp , Green Howard , Paris Didier
Published: January 2018

L'approche comparative entre les deux pays permet de cerner les fondements de la politique urbaine. Au-delà des différences institutionnelles, les convergences dans les problématiques urbaines l'emportent sur les divergences. Il est vrai que l'on retrouve les mêmes leviers pour l'action de part et d'autre de la Manche.
Les dunes côtières des régions froides : exemples canadiens
Authors: Ruz Marie-Hélène
Published: January 2018

Little is known about cold-climate coastal dunes. Along the Canadian arctic and subarctic sandy shorelines, coastal dune development is common. Along the Tuktoyktuk Peninsula, located in the southern Canadian Beaufort Sea, coastal dunes are generally low incipient features, sparsely vegetated. In subarctic settings, as along the emerging eastern Hudson Bay coastline, well developed azonal foredune ridges are found at sandy river mouths. Niveo-aeolian deposition represents a major process contributing to their development.
L'Institut de Géographie de Lille : cent ans d'évaluation
Authors: Bruyelle Pierre
Published: January 2018

The Geographical Institute of Lille : hundred years of evolution.

The aims of this paper is to point out and to characterize the

main phases of the evolution of the Geographical Institute since

it was created. 4 phases are distinguished :

-the origins (1893-1904)

-the rooting, the reinforcing (1904-1946)

-the expansion (1946-1969)

-the diversification ; Geography in a scientific university (1969-1997)
Le port de Dunkerque et son intégration urbaine
Authors: Segers Martine
Published: January 2018

Le port et la ville de Dunkerque sont pour beaucoup indissociables, indifférenciés. L'évolution historique récente a provoqué de nombreuses distorsions et amplifié celles qui existaient déjà entre le port et la ville (coupure spatiale, différences fonctionnelles, développements antagonistes). Le port est toujours l'élément principal de l'identité locale. L'intégration du port dans l'agglomération est réelle mais elle est la conséquence d'une stratégie culturelle à laquelle tous les acteurs de l'agglomération adhèrent plus ou moins consciemment.
Propositions méthodologiques pour une identification territoriale du détroit
Authors: Duhamel Sabine , Hellequin Anne-Peggy
Published: January 2018

Les détroits sont des espaces méconnus, pourtant ils sont souvent au cœur de problématiques aiguës du fait de leur extrême richesse en terme de proximités. Ces dernières qui sont intrinsèques à leur définition permettent une multitude de relations qui élaborent peut-être une certaine territorialisation de l'espace du détroit. Nous partons du postulat de l'existence d'une configuration spatiale exceptionnelle, appelée ici formation socio-spatiale. Pour évaluer sa possible territorialisation, nous avons tenté d'élaborer une méthodologie d'identification des détroits fondée sur des travaux qui touchent principalement à la géographie sociale et à la géographie urbaine. Trois séries de critères ont été définis. Cette distinction rapide constitue une première étape de recherche et une proposition donnée à lire. Ces critères recouvrent les représentations par différents acteurs de la réalité du détroit, les contextes environnementaux qui s'intéressent aux données factuelles des rives du détroit et enfin à la structuration administrative d'une telle maille. L'intérêt d'une telle grille est d'essayer de proposer un outil de compréhension des détroits. Notre espace-test concerne le Pas de Calais, l'objectif étant d'essayer d'utiliser cette démarche dans d'autres espaces de détroits.
La gestion du risque engendré par le recul d'une falaise en zone urbanisée : l'exemple du quartier des Minimes à La Rochelle (Charente-Maritime, France) dans les années 1970-80
Authors: Albinet Vincent
Published: January 2018

L'aménagement urbain, planifié, de la péninsule des Minimes en périphérie de La Rochelle au cours des années 1970-1980 a rendu nécessaire le contrôle du recul de la petite falaise calcaire (5 à 8 mètres de hauteur) qui entoure la péninsule. A cet effet, une digue en enrochements longue de plusieurs centaines de mètres fut érigée à son pied en 1981-1982. Le choix, consécutif au changement de majorité municipale en 1971, de reculer de plusieurs dizaines de mètres les constructions, initialement prévues jusqu'au bord de la falaise, avait pourtant créé les conditions requises pour mettre en oeuvre une stratégie mieux adaptée au site : accepter l'érosion de la falaise, la laisser se poursuivre et intégrer la perte de terres dans les plans d'aménagement du quartier.

Cette perte était tolérable en raison de l'extrême lenteur avec laquelle recule la falaise, 6 à 10 cm par an en moyenne au cours des deux derniers siècles. C'est ce que révèlent les mesures faites avec le logiciel Erdas-Imagine après superposition des plans cadastraux napoléonien et actuel. La décision d'implanter en retrait les constructions garantissait, à un tel rythme, leur sécurité pour une longue durée (plusieurs siècles). Motivée par le souci de préserver le site et l'accès public au rivage, elle inscrivait dans les faits une efficace prévention contre le risque engendré par l'érosion de la falaise.

Que ceci ne fut pas perçu par les protagonistes, au point de recourir à des travaux de génie civil pour fixer la ligne de rivage, souligne l'inertie du système d'action humain construit pour faire face à l'érosion de la côte qui longtemps a enfermé acteurs et actions dans des pratiques convenues tout entières tournées vers la «défense contre la mer». La transformation enclenchée de ce système constitue aujourd'hui l'enjeu majeur. D'elle viendra (a commencé de venir) le renouvellement des pratiques de gestion du recul des falaises et de la côte toute entière.
Albanians and Byzantines. Aproaches to the Study of their common cultural past
Authors: Koder Johannes
Published: January 2018

The cultural heritage of the Albanian nation is – like the cultural heritages of many European nations – complex and has manifold roots in the ancient and medieval history. Through the late antique and medieval centuries the Albanian people received cultural impulses from the Christian nations and institutions in Southeastern Europe and in Italy. Ancient Greek and Roman cultural influence was followed by Byzantine and Western. After the Middle Ages Albania was, under the Ottoman rule, also confronted for some centuries with Muslim culture and ideology. Butthe Albaniansfound the power to overcome foreign interests, political and ideological, and Albania’s role was not reducedtoa melting-pot of foreign cultural elements. The Albanian people integrated these elements and ideas in the main stream of cultural and national identity.
Historique de la recherche
Authors: Ayala Grégoire
Published: January 2018

This chapter introduces the ensemble of the archaeological harbour site of Parc Saint-Georges, Lyon (Rhône region) that lies at the level of the ancient right bank of the Saône River. Commencing with the location and circumstances of this extensive salvage excavation (2004-2006), the principal characteristics of this land dig within a caisson of moulded concrete walls are then presented. After a description of the technical conditions of the dig and the complexity of the means employed, the principal results are mentioned begin-ning with the topographie évolution of this arm of the Saône River and its associated harbour vestiges. Then, the evolution of the port itself, in relation to the shipwrecks and the developments of the river bank, is described following a chronological progression. The modestly equipped Gallo-Roman river port of Lugdunum was followed by the development of a riverside quarter during the Middle Ages and by the creation of the port du Sablet in the 14th century, and then its enlargement throughout the following centuries (16th & 17th centuries). The evolution of the harbour structure in the 18th century was expressed in important architectural developments of the river bank (access stairs to the water, quays) that were striking within the urban fabric of Lyon and in terms of the economie significance of the port. Finally, the restructuring of the quays and the port district of Saint-Georges during the 19th and 20th centuries isolated the former port zone, whether ancient, medieval or modem, from the Saône River. The last stage of this reshaping of the river bank involved the digging of the underground parking area that would lead to the salvage excavation of the site and to the discovery of the 16 ships. The museographie future of those chosen as architectural exemplars is discussed.
Co-reductive fabrication of carbon nanodots with high quantum yield for bioimaging of bacteria
Authors: Wang Jiajun , Liu Xia , Milcovich Gesmi , Chen Tzu-Yu , Durack Edel , Mallen Sarah , Ruan Yongming , Weng Xuexiang , Hudson Sarah P
Published: January 2018

A simple and straightforward synthetic approach for carbon nanodots (C-dots) is proposed. The strategy is based on a one-step hydrothermal chemical reduction with thiourea and urea, leading to high quantum yield C-dots. The obtained C-dots are well-dispersed with a uniform size and a graphite-like structure. A synergistic reduction mechanism was investigated using Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The findings show that using both thiourea and urea during the one-pot synthesis enhances the luminescence of the generated C-dots. Moreover, the prepared C-dots have a high distribution of functional groups on their surface. In this work, C-dots proved to be a suitable nanomaterial for imaging of bacteria and exhibit potential for application in bioimaging thanks to their low cytotoxicity.
To the Galactic Virial Radius with Hyper Suprime-Cam
Authors: Deason Alis J. , Belokurov Vasily , Koposov Sergey E.
Published: January 2018

We exploit the exquisite, deep Hyper Suprime-Cam (HSC) imaging data to probe the Galactic halo out to 200 kpc. Using the ∼100 square degree, multiband photometry of the first HSC Wide survey data release, we identify blue horizontal branch (BHB) stars beyond 50 kpc in the halo. The presence of the Sagittarius (Sgr) stream in the HSC fields produces a notable excess of stars at the apocenter of the leading arm (∼50–60 kpc). For fields excluding Sgr, the BHB counts are consistent with a continuation of a −4 power law from the inner halo. However, we find that the majority of the non-Sgr BHB stars beyond 50 kpc reside in one 27 square degree HSC field called “VVDS.” Curiously, this field is located close to the Magellanic plane, and we hypothesize that the excess of stars between 50 and 200 kpc could be associated with distant Magellanic debris. Indeed, without the VVDS, there are very few BHBs in the remaining portions of the Galaxy probed by the HSC. Accordingly, this scarcity of tracers is consistent with a significant decline in stellar density beyond 50 kpc, with a power law of −4 or steeper.
An Interacting Galaxy Pair at the Origin of a Light Echo
Authors: Merluzzi Paola , Busarello Giovanni , Dopita Michael A. , Thomas Adam D. , Haines Chris P. , Grado Aniello , Limatola Luca , Mercurio Amata
Published: January 2018

In a low-density region of the Shapley supercluster we identified an interacting galaxy pair at redshift z = 0.04865 in which the Seyfert 2 nucleus of the main galaxy (ShaSS 073) is exciting an extended emission line region (EELR, ∼170 kpc2) in the disk of the less massive companion (ShaSS 622). New integral-field spectroscopy and the multiband data set, spanning from far-ultraviolet to far-infrared and radio wavelengths, allowed us to obtain a detailed description of the ShaSS 622–073 system. The gas kinematics shows hints of interaction, although the overall velocity field shows a quite regular rotation in both galaxies, thus suggesting that we are observing their first encounter as confirmed by the estimated distance of 21 kpc between the two galaxy centers. The detected

active galactic nucleus (AGN) outflow and the geometry of the EELR in ShaSS 622 support the presence of a hollow bicone structure. The status and sources of the ionization across the whole system have been analyzed through photoionization models and a Bayesian approach that prove a clear connection between the AGN and the EELR. The luminosity of the AGN (

erg s−1) is a factor of 20 lower than the power needed to excite the gas in the EELR (4.6 × 1045 erg s−1), indicating a dramatic fading of the AGN in the past 3 × 104 yr. ShaSS 073–622 provides all the ingredients listed in the recipe of a light echo where a highly-ionized region maintains memory of a preceding more energetic phase of a now-faded AGN. This is the first case of a light echo observed between two galaxies.
Unlocking Sensitivity for Visibility-based Estimators of the 21 cm Reionization Power Spectrum
Authors: Zhang Yunfan Gerry , Liu Adrian , Parsons Aaron R.
Published: January 2018

Radio interferometers designed to measure the cosmological 21 cm power spectrum require high sensitivity. Several modern low-frequency interferometers feature drift-scan antennas placed on a regular grid to maximize the number of instantaneously coherent (redundant) measurements. However, even for such maximum-redundancy arrays, significant sensitivity comes through partial coherence between baselines. Current visibility-based power-spectrum pipelines, though shown to ease control of systematics, lack the ability to make use of this partial redundancy. We introduce a method to leverage partial redundancy in such power-spectrum pipelines for drift-scan arrays. Our method cross-multiplies baseline pairs at a time lag and quantifies the sensitivity contributions of each pair of baselines. Using the configurations and beams of the 128-element Donald C. Backer Precision Array for Probing the Epoch of Reionization (PAPER-128) and staged deployments of the Hydrogen Epoch of Reionization Array, we illustrate how our method applies to different arrays and predict the sensitivity improvements associated with pairing partially coherent baselines. As the number of antennas increases, we find partial redundancy to be of increasing importance in unlocking the full sensitivity of upcoming arrays.
Gouverner à l’heure de la révolution des pouvoirs
Authors: Thieulin Benoît
Published: January 2018

La révolution numérique ne saurait se réduire à une simple révolution technique. C’est avant tout une révolution des pouvoirs. En donnant de nouvelles capacités d’action à ceux qui n’en avaient pas, elle rebat largement les cartes et fragilise les modes traditionnels de gouvernement. Face à ces bouleversements, l’État doit se réinventer en profondeur.
Effects of mother related factors on perinatal outcomes-a study of mothers seeking antenatal care at public and non-public health facilities in Kisii County, Kenya
Authors: Matiang’i Micah , Karanja Simon , Wanzala Peter , Ngure Kenneth , Luciani Albino
Published: January 2018

The study sought to determine clientlevel and facility-level factors that affect perinatal outcomes among women attending comparable public (government owned) and non-public health facilities (non-government owned) in Kisii County-Kenya in the context of free maternity care. A total of 365 pregnant mothers recruited in 4 health facilities during their ANC visit and followed up to 2 weeks post-delivery but only 287 attended all follow-up visits. Study subjects were recruited proportionate to number of deliveries each of the facilities had conducted in the preceding 6 months. The dependent variable was perinatal outcome; independent variables were demographic and clinical factors. Analysis was done using χ2, logistic regression, paired t and McNemar’s tests. Maternal BMI and a mother’s parity were statistically correlated with perinatal outcome (χ2= 8.900, d.f =3, P=0.031 and (χ2= 13.232, d.f =4, P=0.039) respectively. Mothers with 1 parity were 4.5 times more likely to have normal perinatal outcomes (OR =4.5, 95% CI 2.25-14.29, P=0.012). There was a significant relationship between a mother’s knowledge of pregnancy-related issues and the baby’s weight (t=-67.8 d.f. 213 P<0.001). Mothers’ knowledge on pregnancy issues and spousal involvement influences perinatal outcomes. Dietary Diversity Score (DDS) of a mother does not have a direct influence on the outcome of a pregnancy. There is need to focus on maternal factors that affect perinatal outcomes besides free maternity care.
Degradation of 17α-methyltestosterone by hydroxyapatite catalyst
Authors: Savaris Daniela Langaro , Matos Roberto de , Lindino Cleber Antonio
Published: January 2018

Fish farming is becoming a highly profitable economic activity and the rearing of fingerlings involves the practice of sex reversal for the production of species (male) using the hormone 17α-methyltestosterone (MT). This study analyzed the methodology for degradation of the hormone through solar and ultraviolet radiation using hydroxyapatite (HAP) as heterogeneous catalyst, synthesized by two different methods, with and without doping with nickel and copper. The results showed that MT hormone is degraded by ultraviolet or solar radiation, and accelerated in the presence of the HAP catalyst. In the presence of Fe (III) in the medium, the degradation rate of the hormone decreases. The method of HAP synthesis influences the degradation efficiency.
Rainfall zoning of Bahia State, Brazil: an update proposal
Authors: Simões Yagho De Souza , Silva Eduardo Henrique Borges Cohim , Araújo Heráclio Alves de
Published: January 2018

The state of Bahia’s main climatic characteristic is the high spatial and chronological variability of precipitation. This heterogeneity may be used to determine of pluviometrically homogeneous areas that can define mesoregions in the state, since they allow better management of water resources and help in the elaboration of agricultural studies. The mesoregions already proposed by the scientific community for the state were based only on the annual precipitation in the proximity of the pluviometric stations. In this paper, besides these parameters, spatial and chronological rainfall distribution was considered, i.e., the Precipitation Concentration Degree (PCD) and Precipitation Concentration Period (PCP). The new zoning is based on an update of a study defined in 2000 that divided Bahia into eight mesoregions. Thus, 180 pluviometric stations were distributed throughout the state and grouped conforming to the division previously described. It was concluded that some stations of the same mesoregion had presented conflicting values for the analyzed parameters and, therefore, should not belong to the same area. Starting from an arrangement of the collection stations, considering their proximity, annual precipitation and statistical parameters, a new zoning for Bahia with 10 clusters was defined and validated through the statistical treatment of data.
La myxobactériose viscérale de la truite arc-en-ciel de Salmo gairdneri R : une forme nouvelle de la maladie de l’eau froide à Cytophaga psychrophila
Authors: Baudin-Laurencin Félix , Castric J.-C. , Vigneulle Martine , Tixerant Gérard
Published: January 2018

Visceral myxobacteriosis in the rainbow trout, salmo gairdneri r. : a new clinical form of the cytophaga psychrophila cold water disease.

A new form of the cold water myxobacteriosis in rainbow trout fry and fingerlings appeared in France dining the last years. So far, the aetiological agent has been Cytophaga psychrophila, a myxobacteria occuring on juveniles of salmonids of North America and mostly inducing
Numerical modeling and sensitivity analysis of seawater intrusion in a dual-permeability coastal karst aquifer with conduit networks
Authors: Xu Zexuan , Hu Bill X. , Ye Ming
Published: January 2018

Abstract. Long-distance seawater intrusion has been widely observed through the
subsurface conduit system in coastal karst aquifers as a source of groundwater
contaminant. In this study, seawater intrusion in a dual-permeability karst
aquifer with conduit networks is studied by the two-dimensional
density-dependent flow and transport SEAWAT model. Local and global
sensitivity analyses are used to evaluate the impacts of boundary conditions
and hydrological characteristics on modeling seawater intrusion in a karst
aquifer, including hydraulic conductivity, effective porosity, specific
storage, and dispersivity of the conduit network and of the porous medium.
The local sensitivity analysis evaluates the parameters' sensitivities for modeling
seawater intrusion, specifically in the Woodville Karst Plain (WKP). A more
comprehensive interpretation of parameter sensitivities, including the
nonlinear relationship between simulations and parameters, and/or parameter
interactions, is addressed in the global sensitivity analysis. The conduit
parameters and boundary conditions are important to the simulations in the
porous medium because of the dynamical exchanges between the two systems.
The sensitivity study indicates that salinity and head simulations in the karst
features, such as the conduit system and submarine springs, are critical for
understanding seawater intrusion in a coastal karst aquifer. The evaluation
of hydraulic conductivity sensitivity in the continuum SEAWAT model may be
biased since the conduit flow velocity is not accurately calculated by
Darcy's equation as a function of head difference and hydraulic
conductivity. In addition, dispersivity is no longer an important parameter
in an advection-dominated karst aquifer with a conduit system, compared to the
sensitivity results in a porous medium aquifer. In the end, the extents of
seawater intrusion are quantitatively evaluated and measured under different
scenarios with the variabilities of important parameters identified from
sensitivity results, including salinity at the submarine spring with
rainfall recharge, sea level rise, and a longer simulation time under an
extended low rainfall period.
Publication outcome of abstracts submitted to the American Academy of Ophthalmology meeting
Authors: Mimouni Michael , Krauthammer Mark , Abualhasan Hamza , Badarni Hanan , Imtanis Kamal , Allon Gilad , Berkovitz Liron , Blumenthal Eytan Z. , Mimouni Francis B. , Amarilyo Gil
Published: January 2018

Objective: Abstracts submitted to meetings are subject to less rigorous peer review than full-text manuscripts. This study aimed to explore the publication outcome of abstracts presented at the American Academy of Ophthalmology (AAO) annual meeting.Methods: Abstracts presented at the 2008 AAO meeting were analyzed. Each presented abstract was sought via PubMed to identify if it had been published as a full-text manuscript. The publication outcome, journal impact factor (IF), and time to publication were recorded.Results: A total of 690 abstracts were reviewed, of which 39.1% were subsequently published. They were published in journals with a median IF of 2.9 (range 0–7.2) and a median publication time of 426 days (range 0–2,133 days). A quarter were published in the journal Ophthalmology, with a shorter time to publication (median 282 vs. 534 days, p=0.003). Oral presentations were more likely to be published than poster presentations (57.8% vs. 35.9%, p<0.001) and in journals with higher IFs (3.2 vs. 2.8, p=0.02). Abstracts describing rare diseases had higher publication rates (49.4% vs. 38.0%, p=0.04) and were published in higher IF journals (3.7 vs. 2.9, p=0.03), within a shorter period of time (358 vs. 428 days, p=0.03). In multivariate analysis, affiliation with an institute located in the United States (p=0.002), abstracts describing rare diseases (p=0.03), and funded studies (p=0.03) were associated with publication in higher IF journals.Conclusions: Almost 40% of abstracts were published. Factors that correlated with publication in journals with higher IF were a focus on rare diseases, affiliation with a US institute, and funding.
Effect of Potassium Levels on Productivity and Fruit Quality of Tomato (Lycopersicon esculentum L.)
Authors: Woldemariam Sofonias Hagos , Lal Sewa , Zelelew Daniel Z. , Solomon Mulugheta T.
Published: January 2018

Potassium has significant effect on quantity and quality of tomato yield because of its vital roles in photosynthesis, favoring high energy status and appropriate nutrient translocation and water uptake in plants. However, little is understood or it is being overlooked under Eritrean condition. Besides, poor soil fertility is among the major production constraints in Eritrea. The field experiment was therefore conducted to investigate the effect of potassium levels on productivity and fruit quality of tomato at Hamelmalo, Eritrea. The experiment was conducted in Randomized Complete Block Design with nine potassium levels (0, 50, 100, 150, 200, 250, 300, 350 and 400 kg K2O/ha) replicated thrice. Data was collected on yield and fruit quality parameters and they were subjected to one-way analysis of variance (1-way ANOVA). The results of this study revealed that potassium had significant effect in all yield and quality parameters studied. Fruit diameter, fruit weight per plant, total yield, total soluble solids, specific gravity and fruit dry matter content showed significant increase with an increase in potassium level from 0 to 150 kg K2O/ha and thereafter decreased while fruit moisture content was increased in the range of 150 - 400 kg K2O/ha. As a result, highest fruit weight (1.39 kg/plant), fruit yield (15.45 t/ha), total soluble solids (3.84 oBrix), specific gravity, (1.46) and fruit dry matter (5.68%) were recorded from 150 kg K2O/ha. Therefore it is recommended that potassium fertilizers should be used and balanced NPK fertilizers should be applied to improve yield and quality of tomato produced.
Os serviços odontológicos e as medidas de radioproteção
Authors: Santana Adriana Santos , Moura Jamille Rios , Da Silva Neyldes Moreira
Published: January 2018

Objetivo: este estudo tem por finalidade conhecer às medidas de radioproteção aplicadas aos serviços odontológicos, evidenciando a perspectiva dos cirurgiões dentistas em relação à utilização das medidas preventivas. Revisão de literatura: trata-se de uma revisão bibliográfica da literatura, na qual foram consultadas as seguintes bases de dados bibliográficas: Lilacs, Scielo e PubMed. Foram utilizados os descritores: radiologia, radiação, radiação ionizante, proteção radiológica, radiografia dentária, odontologia e odontológos. No total, oito artigos foram selecionados para compor essa revisão. Estudos encontrados afirmam que a maioria dos cirurgiões dentistas que realizam exames radiográficos odontológicos, não possui conhecimento suficiente no que diz respeito às medidas de proteção á radiação. Em virtude disso, alguns autores apontam a necessidade de atualização desses profissionais através de cursos preparatórios que demonstrem a importância da utilização das normas de proteção radiológica nos serviços odontológicos. Considerações finais: após a análise dos estudos selecionados, é possível concluir que a maioria dos cirurgiões dentistas que realizam exames radiográficos odontológicos não dispõe de conhecimento suficiente no que diz respeito às medidas de proteção á radiação.
Comparação entre as limas Reciproc e WaveOne na formatação e centralização do canal: uma revisão integrativa
Authors: Grossi Gabriela Moreira , Cunha Ludmila De Almeida , Lacerda Mariane Floriano Lopes Santos , Girelli Caroline Felipe Magalhães , Xavier Viviane Ferreira Guimarães
Published: January 2018

O sucesso do tratamento endodôntico envolve a devida capacidade de limpeza e modelagem dos sistemas de canais radiculares, contudo não há consenso na literatura sobre esses sistemas de lima única de NiTi, Reciproc e WaveOne que, em movimento reciprocante, oferecem melhores resultados na formatação endodôntica. OBJETIVO: Comparar a efetividade na formatação dos canais radiculares utilizando os sistemas Reciproc e WaveOne. MÉTODOS: O plano sistemático para a execução desta revisão integrativa consistiu em quatro etapas. Realizou-se um levantamento bibliográfico nas seguintes bases de dados: SciELO, PUBMed, Lilacs. Com os seguintes descritores Reciproc e WaveOne, Shaping canal, Centering canal. Foi feita a leitura dos resumos que constavam nos artigos e documentos selecionados e seleção daqueles que contemplavam de três a cinco descritores sobre o tema desta pesquisa. Em seguida foi feita a leitura dos textos na íntegra e construção de uma tabela com as informações levantadas nesse processo. RESULTADOS: Foram selecionados oito artigos, escritos no período de novembro de 2012 e novembro de 2016, no idioma inglês. CONCLUSÃO: Com base nos artigos estudados, foi possível perceber semelhanças ou resultados melhores em vários aspectos para o sistema Reciproc em comparação com WaveOne.
Influência da manipulação da resina composta na resistência adesiva à dentina
Authors: Lorencet Rafael Boaretto , Facenda Júlia Cadorim , Lago Carlo Theodoro Raymundi , Corazza Pedro Henrique
Published: January 2018

Objetivo: Avaliar a influência da manipulação de uma resina composta (RC) com diferentes luvas na sua resistência adesiva à dentina. Metodologia: 25 terceiros molares hígidos foram seccionados 2 mm abaixo do sulco central, expondo a dentina (D). A D foi condicionada com ácido fosfórico 35%, lavada, e o sistema adesivo Single Bond Universal (3M ESPE) foi aplicado. Os dentes foram distribuídos aleatoriamente em 5 grupos, de acordo com o tipo da manipulação da RC: C (controle)- RC inserida diretamente do tubo para a D; LL- RC manipulada com luvas de látex antes da inserção; LV- RC manipulada com luvas de vinil; LC- RC manipulada com luvas de látex contaminadas; VC- RC manipulada com luvas de vinil contaminadas. Após, o conjunto foi seccionado em uma máquina de corte para a obtenção dos palitos com área aproximada de 1 mm², que foram armazenados em água destilada a 37°C por 6 meses. O teste foi realizado em uma máquina de ensaio (EMIC), com velocidade de 0,5 mm/min. Os valores de resistência adesiva foram calculados (MPa) e comparados com ANOVA, Tukey (α=0,05) e Weibull. Resultados: O grupo com maior resistência adesiva foi o LV (38,74 ± 3,63 MPa), estat
Método: Foi aplicado questionário a 164 docentes do ensino fundamental do Município de Almirante Tamandaré/PR, do período vespertino, para avaliação do nível de conhecimento sobre as atitudes no pronto-atendimento a crianças em caso de TAD. Os professores responderam ao QTDA (Questionário sobre o pronto atendimento ao traumatismo alvéolo dentário), que continham 10 (dez) perguntas de múltipla escolha. O questionário contém questões sobre a atitude a ser tomada em caso de traumatismo na dentição decídua (n = 5) e na dentição permanente (n = 5), sendo estas referentes a situações de avulsão, intrusão, extrusão e fratura dentária. Cada pergunta continha de 4 a 5 opções de resposta, sendo possível, ao respondente, descrever outra atitude, caso não considerasse nenhuma das alternativas como correta. O QTDA foi respondido em dois momentos, um anterior a leitura de folheto educativo (QTDA1) e outro posterior a sua leitura (QTDA2).

Resultado: Observou-se que 43,20% dos docentes não tinham conhecimento sobre os procedimentos corretos a serem adotados numa situação de TAD. Após a leitura do panfleto educativo, a taxa de acerto aumentou cerca de 21,83%, ou seja, houve diferença estatisticamente significante (p≤0,001) entre os escores antes e depois da leitura do panfleto, o que reflete uma melhora no nível de conhecimento por parte dos respondentes.

Conclusão: O folheto educativo mostrou-se eficiente na aquisição de conhecimento sobre o tema TAD, resultando num percentual significativamente positivo após a leitura do folheto educativo, sendo método barato e, os educadores fazem a leitura onde e quando achar conveniente.
Elaboración e interpretación de caricaturas como estrategia didáctica para el aprendizaje de la asignatura Filosofía en Educación Secundaria
Authors: Orozco Alvarado Julio César , Díaz Pérez Adolfo Alejandro
Published: January 2018

La presente investigación fue realizada en el Colegio Público Esquipulas de Managua con los estudiantes de 11vo grado “A” y “B”, y consistió en la elaboración e interpretación de caricaturas con la finalidad de trascender de un modelo didáctico memorístico, basado en la reproducción mental de conceptos, a un modelo pedagógico que permita la comprensión de los contenidos y el desarrollo de competencias como: autonomía, actitud crítica, reflexiva y emprendedora. Para llevar a cabo este estudio, el equipo investigador se adhirió al paradigma investigativo sociocrítico y a la investigación acción, realizando una intervención didáctica de siete sesiones de clase de los contenidos Filosofía en la Edad Media y Filosofía Latinoamericana. Los hallazgos en la investigación demuestran que los estudiantes mejoraron el dominio de los contenidos; aprendieron significativamente, desarrollando autonomía y pensamiento crítico; y aumentaron el interés por el estudio de la Filosofía en Educación Secundaria.
Does a Specific Location of Composted Poultry Litter in Soil Influence Nutrient Use Efficiency and Vegetable Production? A Mesocosm Experiment
Authors: Koffi Bernard Y. , Koné Armand W. , Tiho Seydou , Kouadio Fulgence , Masse Dominique
Published: January 2018

Animal wastes may be promoted as an alternative to mineral fertilizers that remain unaffordable to the overwhelming part of smallholder farmers in Sub-saharan Africa. However for an efficient use, mechanisms that underly their impact on crops should be well understood. This study was conducted in mesocosm to evaluate impacts of two ways of composted poultry litter (CPL) addition on growth and nutrient use efficiency by cucumber. It included three treatments with five-bucket replicates each: Control, CPL applied on soil surface (CS) or buried to 10 cm-depth (CB). Dry CPL was added at the rate of 0.5 kg bucket-1. At harvest, root distribution was examined in the 0-5, 5-10 and 10-20 cm depths. Dry biomasses of roots, shoot and fruits were also determined and allowed for calculation of diverse indexes of biomass allocation (root:shoot ratio, root weight ratio, stem weight ratio, leaf weight ratio) and nutrient use efficiency (factor productivity of the compost, partial factor productivity of nutrients, agronomic efficiency of compost, and apparent agronomic efficiency of nutrients). The results showed that application of CPL led to a significant improvement of all considered parameters except for the leaf weight ratio which was higher in the control (44.1±3.3) than in CS (28.1±1.9) and CB 31.2±3.5). Total lateral root length was significantly higher in CS than in CB (113.5±10.7 cm vs. 75.5±9.0 cm). The number of lateral roots per plant in the 0-5 cm soil layer was higher in CS than in CB (5.4 vs. 1 root plant-1); the reverse was observed in 5-10 cm (1.2 vs. 4.4 root plant-1). Both fresh fruit yield and total dry mass were positively correlated to root attributes. These were themselves negatively impacted by soil acidity. All nutrient use efficiency indexes were higher in CS than CB. The CPL improved the agronomic performance of cucumber particularly when applied at soil surface.
Distribution of Zinc in Selected Benchmark Soils of South Western Nigeria
Authors: Thomas E. Y. , Omueti J. A. I. , Adebisi A. A.
Published: January 2018

The Understanding of the different fractions of Zinc in soils is important to effectively manage fertilizer resources due to the low availability of Zinc in the native soil worldwide. Bioavailability, uptake of Zinc by plant and its fractions depend largely on the soil parent material, the type of chemical transformation the soil has been expose to over times and some anthropogenic intervention. This study examined five different Zn pools.The distribution of Zn in soil fractions was determined for seven selected soils of South Western Nigeria. A sequential batch extraction which had been modified was used to identify Zn fractions and were separated into: the extractable zinc (Ex-Zn), zinc associated with the carbonate (CO3-Zn), the organically bound zinc (Org-Zn), sesquioxide (Ox-Zn) and residual (Res-Zn) in each soil. Total Zn was estimated as a sum of all the pools.Result showed that Zinc fractions in the soils were in this order: extractible pool (3.8%) < organic pool (13.6%) < carbonate pool (14.8%) < sesquioxide pool (22.8%) < residual pool (45.1%). The residual pool amounts for almost half of the zinc that made up the total zinc in the soil. The distribution of zinc into these pools were determined by selected physical and chemical properties of the soil; the pH, organic carbon, clay, CEC, and phosphorus. However, soil phosphorus and pH had the highest influence on the zinc in the experimental soils. The stable fraction that dominated the soil was evident in the low extractable Zn fractions in the soil. Which is an indication of the inherently low levels of the bioavailability of Zn in the selected soils used in this study.
Production and Bromatological Composition of Black Oat Cultivated with Vetch When Submitted to Nitrogen Fertilization in Above Sowing in the Pasture of Tifton 85
Authors: Fonesi de Carvalho João Paulo , Porfirio Magno Daniel , Führ Claudia Anete , Kuhn Vitor Gustavo , Brito Tauane Santos , Pan Renan , Fukumoto Nelson Massaru , Mesquita Eduardo Eustáquio
Published: January 2018

The objective of this research was to evaluate the forage production, the bromatological composition of black oat in consortium with vetch when submitted to nitrogen fertilization in above sowing system in the Tifton 85 pasture. The experiment was conducted at the experimental farm of the Pontifical Catholic University of Parana, Campus Toledo-PR. The experimental design used was random blocks with four treatments and five repetitions and the treatments consisted of: only oat, oat consorted with vetch, oat with nitrogen fertilization and oat consorted with vetch and nitrogen fertilization. Were evaluated the bromatological composition (CP, NDF, ADF, LIG, EE DM, MM) and the forage yield in the consortium of oat with vetch and/or nitrogen fertilization. The results obtained to the bromatological composition indicate that the application of nitrogen on the surface of the forage increased production with an average of 3.922 kg ha-1 in the second year. The nitrogen fertilization also influenced in the medium contents of crude protein (CP) with 18.56% in the first year. The increase of nitrogen in the parcels showed meaningful results for the first year (P < 0.05) in the contents of dry matter with average value of 18.95%. The introduction of black oat consorted with vetch and with a nitrogen fertilization in above sowing in the crop of tifton 85 during the winter period provides an increase in the yield kg ha-1 and when the vetch was used it happened an increase in the contents of crude protein and dry matter in the bromatological composition of the forage.
Perceived Body Size and Weight Control Practices of Adolescents in Rural and Urban Communities in South Western Nigeria
Authors: Oyewole Oladapo B. , Folasire Oluyemisi F. , Ayede Idowu A. , Adedokun Babatunde O. , Dairo David M.
Published: January 2018

Introduction and Objectives: Body size perception has been described as the image of our own shape created in our imagination. Body image perception determines the adolescent engagement in weight control activities, such as bulimia and anorexia. A misperception of body size may lead the adolescent into engagement in weight control activities that may be injurious to adolescent’s health. This study assessed the perceived body size and weight control practices among adolescents in different settings.Methodology: A cross-sectional, multistage cluster sampling method was used to recruit 913 adolescents in Ibadan North Local Government, Ibadan, Nigeria who were interviewed using a semi-structured, self-administered questionnaire. Anthropometric measurements were taken; perceived body size were determine by Stunkard Figure Rating Scale Silhouette. Analysis was done using the Chi-square statistic and p<0.05 level of significance.Results: Over four-fifths (87.4%) of the adolescents wrongly perceived their actual body size. Body size overestimation was reported by both females and males. About 11.3% respondents recorded making an effort to reduce weight whereas, 12.7% recorded they were also involved in gaining weight. Over twice as large urban respondents (14.7%) engaged in weight reduction habits contrast to rural (6.8%). Majority of females with normal weight perceived themselves overweight (l2=50.06, p=0.000). More males were involved in weight gain practise (l2=6.94, p=0.031).Conclusion: The increased frequency of body weight misperceived within rural/urban adolescents and the reported influence and motivation of weight control behaviours, makes adolescent education on assessment of their weight and BMI imperative in adolescent health care services.
Non-linear Isotherm Models, Cadmium Kinetics, and Biosorption Thermodynamics of Dried Biomass of Native Aphanothece sp. in a Batch System
Authors: Satya Awalina , Harimawan Ardiyan , Sri Haryani Gadis , Setiadi Tjandra
Published: January 2018

Dried biosorbent was prepared from Aphanothece sp. cyanobacteria harvested from a photobioreactor system fed with atmospheric carbon dioxide. Cadmium-ion biosorption of the prepared biosorbent from aqueous solution was characterized by non-linear (Langmuir, Freundlich and Dubinin"“Radushkevich) isotherms, non-linear kinetics (pseudo first-order and pseudo second-order) and thermodynamic analysis. The optimum conditions were pH 8.0, 30°C, 0.1 g/L biomass, and 60 min contact time. The biosorption efficiencies exceeded 90%. The low-range data (initial Cd concentration C0 = 1.09"“6.23 mg/L) and high-range data (C0 = 5.41"“83.07 mg/L) were best fitted to the Langmuir model, with maximum uptake capacities of 12.01 and 187.5 mg/g (R2 = 0.995 and 0.996). In the Dubinin"“Radushkevich isotherm model, the mean biosorption energy was 12.91 kJ/mol, suggesting that ion exchange was the working mechanism. The biosorption apparently followed pseudo second-order kinetics (R2 = 0.994"“0.999; k2 = 2.04 E-03 to 3.86 E-02 g/mg min). The biosorption process was energetically feasible (âˆ†G0 = âˆ’13.47"“âˆ’8.88 kJ/mol), exothermic (âˆ†H0 = âˆ’74.82 kJ/mol) and tended to become more ordered (âˆ†S0 = âˆ’0.204 kJ/mol K) towards the end of the process. The biosorbent was reusable through three adsorption/desorption cycles in 1 M HCl.
Breast Specimen Processing and Reporting With an Emphasis on Margin Evaluation: A College of American Pathologists Survey of 866 Laboratories
Authors: Guidi Anthony J. , Tworek Joseph A. , Mais Daniel D. , Souers Rhona J. , Blond Barbara J. , Brown Richard W.
Published: January 2018

Context.—

The College of American Pathologists (CAP) developed protocols for reporting pathologic characteristics of breast cancer specimens, including margin status. The Society of Surgical Oncology (SSO) and the American Society for Radiation Oncology (ASTRO) published treatment guidelines regarding margins in patients with invasive cancer; and SSO, ASTRO, and the American Society of Clinical Oncology (ASCO) recently published guidelines for patients with ductal carcinoma in situ.

Objective.—

To assess current practices among pathologists with regard to the processing/reporting of breast specimens, assess compliance with CAP cancer protocols, and assess alignment with SSO/ASTRO and SSO/ASTRO/ASCO guidelines.

Design.—

A survey concerning breast specimen processing/reporting was distributed to pathologists enrolled in the CAP Performance Improvement Program in Surgical Pathology.

Results.—

Ninety-four percent (716 of 764 respondents) and 91% (699 of 769 respondents) define positive margins as “tumor on ink” for invasive cancer and ductal carcinoma in situ, respectively, in compliance with CAP cancer protocols and with SSO/ASTRO and SSO/ASTRO/ASCO guidelines. Of 791 respondents who provided details regarding methods for margin evaluation, 608 (77%) exclusively examine perpendicular margins, facilitating guideline compliance. However, 183 of 791 respondents (23%) examine en face margins in at least a subset of specimens, which may preclude guideline compliance in some cases. When separate cavity (shave) margins are examined, while 517 of 586 respondents (88%) ink these specimens, 69 of 586 (12%) do not, and this may also preclude guideline compliance in some cases.

Conclusions.—

A substantial proportion of survey participants report margin status for breast cancer specimens in a manner consistent with CAP cancer protocols, and in alignment with SSO/ASTRO and SSO/ASTRO/ASCO guidelines. However, there are opportunities for some laboratories to modify procedures in order to facilitate more complete adherence to guidelines.