bluuebunny/crossref_metadata_2025_split huggingface dataset:
Macartney Rose (Rosa bracteata) Response to Herbicide and Mowing Treatments
Authors: Enloe Stephen F. , Kline William N. , Aulakh Jatinder S. , Bethke Rachel K. , Gladney Jonathan B. , Lauer Dwight K. 
Published: March 2013

AbstractMacartney rose is an aggressive thorny shrub that displaces forage species and hinders cattle grazing in rangelands and pastures of the southern United States. Historically, Macartney rose has proven to be extremely difficult to control even with high rates of soil residual herbicides such as picloram. Recent advances in herbicide chemistry warrant testing on this troublesome species. We compared mowing and late summer broadcast applications of thirteen herbicide treatments that included combinations of aminopyralid, fluroxypyr, metsulfuron, picloram, triclopyr, and 2,4-D. Treatments were applied to the same rose clumps for 2 consecutive yr. An additional mowing was done to one half of the rose clumps in each treatment 6 mo after the second herbicide treatment. At 11 mo after initial treatment (MAIT), mowing and all herbicide treatments performed very poorly and provided 35% control or less. At 12 mo after retreatment (24 MAIT), picloram + 2,4-D and aminopyralid + metsulfuron, both followed by mowing, were the most effective treatments, providing 72 to 91% control. All other treatments provided less than 70% control. However, complete clump mortality was very low across all treatments, ranging from 3 to 32%. These results indicate that Macartney rose suppression is possible with certain new herbicides, but complete clump kill is still lacking.
Emergence and Performance of Two Invasive Swallowworts (Vincetoxicumspp.) in Contrasting Soil Types and Soil pH
Authors: Magidow Lillian C. , DiTommaso Antonio , Ketterings Quirine M. , Mohler Charles L. , Milbrath Lindsey R. 
Published: March 2013

AbstractThe alien invasive vines black and pale swallowwort are currently spreading across eastern North America, invading parklands, old fields, restored forest sites, and other natural areas. These plants spread by wind-borne seed and can form dense stands where they become established. Although their current geographic ranges overlap, there is little known overlap locally. Preliminary observations and anecdotal information have associated black swallowwort with low-pH inceptisols and pale swallowwort with high-pH alfisols. We conducted a common garden field experiment repeated over two years and a growth chamber germination experiment to assess whether seedling emergence and performance of these two swallowworts are affected by soil type and/or soil pH. Soil pH was artificially modified. In the common garden experiment, plants of both species grown on the Onondaga County soil type (an alfisol) produced a smaller root mass than on the Orange County soil (an inceptisol). Also, in one of two years more seedlings emerged and plants produced more follicles on the Onondaga County soil. Soil pH did not affect seedling emergence, although plants grown on low pH soils had a smaller root dry mass compared with plants grown on higher pH soils. Soil pH effects on stem length, stem dry mass, and follicle production were inconsistent among years. Species differences were also evident, with more pale swallowwort seedlings emerging than black swallowwort seedlings, whereas black swallowwort plants mostly had greater biomass and fecundity than pale swallowwort plants. In the growth chamber experiment, final percentage seed germination was greater on the Onondaga County soil than on the Orange County soil. The germination speed index as well as the probability to reach 50% germination for black swallowwort was higher on the Onondaga County soil than the Orange County soil, but only at lower pH levels. The germination speed index of pale swallowwort on the Orange County soil was higher than black swallowwort at low, but not high, pH levels. In contrast, black swallowwort had a higher probability of reaching 50% germination than pale swallowwort on the Orange County soil at higher pH levels. Contrary to our expectations, interactions between the two swallowwort species with their associated soil type or with their presumably preferred soil pH were weak, contradictory, or non-existent in both experiments. This suggests that these two species can colonize and grow well in a relatively wide range of soil pH conditions. From a management perspective, our results suggest that the current range and local overlap of these two species will continue to increase and that early detection rapid response (EDRR) programs should be established in susceptible regions not yet colonized by these two invasive vines.
Microsatellites Uncover Multiple Introductions of Clonal Giant Reed (Arundo donax)
Authors: Tarin Daniel , Pepper Alan E. , Goolsby John A. , Moran Patrick J. , Arquieta Alberto Contreras , Kirk Alan E. , Manhart James R. 
Published: March 2013

AbstractGiant reed (Arundo donax) is an invasive weed that is native to the Old World. Tens of thousands of hectares of riparian habitat in the Rio Grande Basin (RGB) in Texas and Mexico have been heavily affected by invasions ofArundo. Additionally, many other watersheds across the southwestern United States have also been affected. Giant reed is being targeted for biological control because it displaces native vegetation and consumes water that could potentially be used for agricultural and municipal purposes, especially in areas with limited access to water. Finding the best-adapted insects for biological control involves locating the origin(s) of this plant. To narrow down the proximal source(s) of invasion of giant reed in the RGB, 10 microsatellite markers were developed. An analysis of 203 Old World and 159 North American plants, with an emphasis on the RGB, indicated a reduction in the allelic diversity in the introduced range compared with the Old World. Clonal assignment, neighbor joining, principal coordinates analyses, and STRUCTURE analyses were consistent and implied multiple introductions in North America, with one (likely clonal) lineage responsible for the invasion of the RGB, northern Mexico, and other parts of the southwestern United States. Although no identical matches with the RGB lineage were found in the Old World, several close matches were found on the Mediterranean coast of Spain.
A novel experimental model for studying transverse orthodontic tooth movement in the rat mandible
Authors: Alsagheer Ayad , Kline Loren W. , Doschak Michael R. , Major Paul W. 
Published: March 2013

ABSTRACT

Objectives:
To establish a rat model of a one-piece mandible using the principles of gingivoperiosteoplasty and guided bone regeneration to fuse the midline symphyseal area.

Material and Methods:
Twenty-four Sprague-Dawley female rats were divided into two groups: 12 experimental and 12 control. Both groups were imaged using in vivo micro-computed tomography at baseline and at end point (5 months). The experimental group received regenerative surgery at the symphysis area; the control group received no treatment. Outcomes were evaluated by radiographic examination of gross and volumetric bony changes in the symphyseal region of interest marked between the mental foramina bilaterally and the two central incisors near the most coronal margin of the alveolar crests. These landmarks were chosen as they can be reproduced on the computed tomography images at baseline and end point. Histologic examination was performed on all samples at a level 5 mm apical to the alveolar bone crest.

Results:
Radiologic and histologic examinations of the experimental group revealed complete bony fusion of the symphyseal area in three subjects, partial fusion in five subjects, and thickening of the alveolar bony socket in three subjects; one rat died of anesthesia-related complications. No evidence of fusion or alveolar bone thickening was found in any of the controls.

Conclusions:
This surgical animal model demonstrates that a rat mandible can be surgically manipulated to mimic the one-piece human mandible. This novel model may prove useful in studying mandibular bone remodeling and orthodontic mandibular tooth movement.
Progresses in treatment of collagen and keratin-based materials with silver nanoparticles
Authors: Gaidau Carmen , Petica Aurora , Micutz Marin , Danciu Mihai , Vladkova Todorka 
Published: March 2013

Abstract
The treatment of chromium tanned sheepskins with poly(hydroxyl urethane) and dispersion of chemically synthesized nanosilver showed the best resistance to fungi and bacterial exposure tests. These collagen-based materials containing different amounts of nanosilver were investigated by Atomic Absorption Spectroscopy, Atomic Force Microscopy and Scanning Electron Microscopy coupled with Energy Dispersive X-Ray Spectroscopy. The influence of sheepskins treated with silver nanoparticles on the wound healing process was assessed and the nanoparticles concentration seems to have a positive effect up to 370 ppm and does not influence the inflammatory process above this concentration.
Use of peat-based sorbents for removal of arsenic compounds
Authors: Ansone Linda , Klavins Maris , Eglite Linda 
Published: March 2013

Abstract
It is important to apply sorbent materials for purification of water from arsenic contamination due to serious arsenic pollution worldwide. We have developed new sorbents based on natural materials that provide a cheap and environmentally friendly alternative. For the first time, peat modified with iron compounds and iron humates were tested for sorption of arsenic compounds. The highest sorption capacity was found in peat modified with iron compounds. We have found that sorption of different arsenic speciation forms was strongly dependent on solution pH, reaction time and temperature. Calculations of the sorption process using thermodynamic parameters indicate the spontaneity of sorption process and its endothermic nature. Sorption kinetics showed that most arsenates are removed within 2 hours, and the kinetics of arsenate sorption on modified peat can be described by the pseudo-second order mechanism.
Preparation, characterization and photocatalytic activity of Co3O4/LiNbO3 composite
Authors: Zielinska Beata , Janus Magdalena , Kalenczuk Ryszard 
Published: March 2013

Abstract
The Co3O4/LiNbO3 composites were synthesized by impregnation of LiNbO3 in an aqueous solution of cobalt nitrate and next by calcination at 400°C. The activity of produced samples has been investigated in the reaction of photocatalytic hydrogen generation. The crystallographic phases, optical and vibronic properties were studied using X-ray diffraction (XRD), diffuse reflectance (DR) UV-vis and resonance Raman spectroscopic techniques, respectively. The influence of cobalt content (range from 0.5 wt.% to 4 wt.%) on the photocatalytic activity of Co3O4/LiNbO3 composites for photocatalytic hydrogen generation has been investigated. Co3O4/LiNbO3 composites exhibited higher than LiNbO3 photocatalytic activity for hydrogen generation. The highest H2 evolution efficiency was observed for Co3O4/LiNbO3 composite with 3 wt.% cobalt content. The amount of H2 obtained in the presence of LiNbO3 and Co3O4/LiNbO3 (3 wt.% of cobalt content) was 1.38 µmol/min and 2.59 µmol min−1, respectively.
Global existence for a system of nonlocal PDEs with applications to chemically reacting incompressible fluids
Authors: Bárta Tomáš 
Published: March 2013

Abstract
We show global existence for a class of models of fluids that change their properties depending on the concentration of a chemical. We allow that the stress tensor in (t, x) depends on the velocity and concentration at other points and times. The example we have in mind foremost are materials with memory.
Numerical analysis of nonlinear model of excited carrier decay
Authors: Tumanova Natalija , Čiegis Raimondas , Meilūnas Mečislavas 
Published: March 2013

Abstract
This paper presents a mathematical model for photo-excited carrier decay in a semiconductor. Due to the carrier trapping states and recombination centers in the bandgap, the carrier decay process is defined by the system of nonlinear differential equations. The system of nonlinear ordinary differential equations is approximated by linearized backward Euler scheme. Some a priori estimates of the discrete solution are obtained and the convergence of the linearized backward Euler method is proved. The identifiability analysis of the parameters of deep centers is performed and the fitting of the model to experimental data is done by using the genetic optimization algorithm. Results of numerical experiments are presented.
Sierpiński graphs as spanning subgraphs of Hanoi graphs
Authors: Hinz Andreas , Klavžar Sandi , Zemljič Sara 
Published: March 2013

Abstract
Hanoi graphs H
pn model the Tower of Hanoi game with p pegs and n discs. Sierpinski graphs S
pn arose in investigations of universal topological spaces and have meanwhile been studied extensively. It is proved that S
pn embeds as a spanning subgraph into H
pn if and only if p is odd or, trivially, if n = 1.
Convolution on L
p-spaces of a locally compact group
Authors: Abtahi Fatemeh , Nasr-Isfahani Rasoul , Rejali Ali 
Published: March 2013

Abstract
We have recently shown that, for 2 < p < ∞, a locally compact group G is compact if and only if the convolution multiplication f * g exists for all f, g ∈ L
p(G). Here, we study the existence of f * g for all f, g ∈ L
p(G) in the case where 0 < p ≤ 2. Also, for 0 < p < ∞, we offer some necessary and sufficient conditions for L
p(G) * L
p(G) to be contained in certain function spaces on G.
Linguistic and cultural dimensions of Slovak onomastics in Slavistics research
Authors: Krško Jaromír 
Published: March 2013

Abstract
In his paper the author argues that interdisciplinary research and collaboration between different scientific branches are important in ensuring that research captures the wider picture. The author ascertains common points in history, ethnology, dialectology, and folkloristics by looking at various examples of onomastic research conducted in Slovakia. The research findings are part of broad pan-Slavic research and are important in Slovak Slavistics as well.
Slovak folk tradition in ethnolinguistic studies of the Carpathian-Balkan area
Authors: Plotnikova Anna 
Published: March 2013

Abstract
The article is devoted to an analysis of Carpathian-Balkan studies conducted by the Russian Academy of Sciences since 2006. The Slovak tradition is an important one, as it displays characteristics which are common to the Carpathian region as a whole. Furthermore, there are a number of Carpathian-South Slavic and Carpathian-Balkan parallels in terminology and related phenomena in folk culture.
18F-FDG PET/CT findings in patients with Kikuchi disease
Authors: Chun K. , Hong Y. , Hah J. , Cho I. , Kong E. 
Published: March 2013

Summary
Purpose: Kikuchi disease (KD) is a benign and self-limited syndrome characterized by cervical lymphadenopathy. This study evaluated 18F-fluorodeoxyglucose positron emission tomography/ computed tomography (FDG PET/ CT) findings in patients with KD and analyzed their imaging features. Patients, material, methods: We evaluated the FDG PET/CT findings of 22 patients (14 men, 8 women) with KD, ranging in age from 9 to 73 years. All patients had been diagnosed based on the pathological findings of biopsy. We examined the locations, metabolic activity and size of hypermetabolic lymph nodes (LNs) on FDG PET/CT imaging with medical history including laboratory results. Results: Among the 22 patients, we identified 619 hypermetabolic LNs which had maximum standard uptake value (SUVmax) above 3.0. The 16 patients were studied with FDG PET/CT to identify the cause of fever, another 5 patients for their neck masses, and the remaining patient for his left inguinal mass. Hypermetabolic LNs were noted in neck (18 bilaterally, 2 right, 1 left) of 21 patients, axilla of 10, mediastinum of 9, abdomen of 17, pelvis of 6, and inguinal area of 3. The SUVmax of FDG uptake in affected LNs by patient base analysis were 6.2–29.4. Of the 619 hypermetabolic LNs identified, 440 LNs (71.1%) were less than 10 mm in their short axis determined by CT, and were occasionally aggregated. No patient showed solid organ hypermetabolic lesion in FDG PET/CT. Conclusion: Kikuchi disease could present multiple hypermetabolic LNs in body on FDG PET/CT. Based on the physical findings, consideration of the generalized distribution of the relatively small-sized hypermetabolic LNs, FDG PET/CT may be useful as a diagnostic tool in cases of Kikuchi disease.
Comment l'assistance chasse l'État social
Authors: Duvoux Nicolas 
Published: March 2013

La protection sociale, telle qu’elle s’était progressivement édifiée tout au long du XX e siècle en France, est progressivement réduite et remplacée par une logique d’assistance. Loin de se réduire à une simple question d’arbitrages budgétaires, ce ciblage des prestations sur les plus « vulnérables » alimente non seulement la stigmatisation de ses bénéficiaires, mais aussi la montée d’un ressentiment plus général au sein de la population, non dénué d’implications politiques.
Individus, risques et supports collectifs
Authors: Castel Robert 
Published: March 2013

Pauvreté, exclusion, précarité : autant de mots qui se sont installés dans notre vocabulaire quotidien, en même temps que les phénomènes qu’ils entendent désigner. Pour autant, le flou qui les entoure contribue à entretenir certains amalgames et idées fausses qui entravent toute volonté d’enrayer la « montée des incertitudes » à l’œuvre. C’est sur ce processus que revient ici Robert Castel, et plus largement sur son parcours de recherche, dans un entretien qu’il a gentiment accepté de nous accorder au mois de mai dernier.
Le déclassement social
Authors: Morin Sylvain 
Published: March 2013

La notion de déclassement apparaît dans le nouveau programme de terminale ES au sein du thème de sociologie « 1.2 Comment rendre compte de la mobilité sociale ? ». Au-delà des enjeux politiques majeurs qu’il cristallise (inégalités entre générations, méritocratie scolaire...), le déclassement social est depuis quelques années l’objet d’intenses débats entre sociologues. Pour certains chercheurs, notamment Camille Peugny et Louis Chauvel, le déclassement social est une réalité statistique nouvelle affectant une part croissante des jeunes générations. D’autres sociologues et économistes, tel Eric Maurin, considèrent au contraire qu’il convient de nuancer l’effectivité du déclassement social et de porter le regard sur la peur suscitée par ce dernier. Ce dossier documentaire se propose d’explorer quelques-unes des problématiques traversant ce débat.
L'éthique des SES et l'esprit démocratique : jalons pour une refonte
Authors: Mas Jean-Yves 
Published: March 2013

Alors que les nouveaux programmes de SES en terminale sont entrés en vigueur cette année et que de nombreux enseignants en dénoncent la lourdeur et l’encyclopédisme, nous aimerions poser quelques jalons en vue de leur éventuelle refonte. Cette refonte doit, selon nous, permettre de réactiver l’esprit du projet fondateur de l’enseignement de SES mais nécessite une réflexion sur les finalités éthiques de celui-ci. En effet, beaucoup d’argumentaires hostiles aux nouveaux programmes accusent ces derniers de ne plus permettre la formation des citoyens et de l’esprit critique. Nous partageons ce diagnostic mais nous pensons qu’une réflexion doit s’amorcer afin de préciser en quoi notre enseignement se veut « émancipateur et citoyen ». Ni catalogue de savoirs désincarnés, ni catéchisme moral, l’enseignement des SES est porteur d’un projet à la fois éthique et épistémique et c’est dans l’articulation de ces deux projets que se fonde son identité. Le texte qui suit entend justement contribuer à l’exposition de cette articulation. Il s’agit de partir des savoirs disciplinaires qu’entendent mobiliser les SES dans leur démarche didactique, afin de montrer en quoi ces savoirs questionnent les principes mêmes de nos sociétés démocratiques. Chaque champ disciplinaire mobilisé par l’enseignement des SES tente de répondre à une question fondatrice, question que nous entendons mettre en perspective avec les valeurs propres au projet démocratique. En cela nous voulons montrer la façon dont l’enseignement des SES contribue, non seulement à la formation du citoyen et de l’esprit critique, mais, de façon plus large, à la formation du « sujet démocratique ».
Pouvoir bien
Authors: Barbet Cécile 
Published: March 2013

Le verbe modal pouvoir se rencontre souvent accompagné de l’adverbe bien (cf. par ex. La clé peut bien s’être cassée net dans la serrure ). Les études portant sur les modaux comme sur l’adverbe sont nombreuses mais peu ont abordé la question problématique de l’emploi de l’adverbe avec les verbes modaux. Si dans les interrogatives avec pouvoir bien ( Qu’est-ce que ça peut bien faire ? par ex.), il semble que l’on soit en présence de l’adverbe de phrase, dans tous les autres emplois de pouvoir bien , l’adverbe n’est réductible ni à l’adverbe de phrase ni à l’adverbe de constituant. Il partage dans ce cas avec l’un et l’autre des caractéristiques qui sont contradictoires : il est gradable mais n’est pas inclus dans la portée de la négation par exemple. Nous concluons que dans l’état actuel des recherches, il faut accepter la catégorie spécifique d’adverbe de prédicat modalisant proposée par Martin (1990) pour rendre compte de l’emploi de bien avec le verbe modal pouvoir .
Ben en tant que collocatif discursif
Authors: Dostie Gaétane 
Published: March 2013

Cet article porte sur un aspect ciblé, ignoré à ce jour, du comportement de ben : il s’agit de sa propension marquée à apparaître, dans les conversations informelles, associé à une autre unité de sa catégorie (nommément, la catégorie des marqueurs discursifs). L’attention est centrée sur les cas de semi-figement, c’est-à-dire sur les cas où ben , qui a le statut de collocatif discursif, se trouve sélectionné par un marqueur-tête, comme oui , non , regarde et écoute . On met en relief le fait que ben a le statut de collocatif discursif dans deux contextes ciblés : l’un où il apparaît antéposé à son marqueur-tête (cf. ben 1 , sélectionné à titre d’exemple par oui ) et, l’autre, où il lui est postposé (cf. ben 2 sélectionné notamment par écoute ). Les sens exprimés par ben 1 et ben 2 sont décrits et le lien sémantique qui les unit est mis en évidence : ils renvoient, tous deux, à ce qui est pleinement assumé par le locuteur. Voilà pourquoi ils viennent appuyer (ou insister) sur les sens transmis par les marqueurs-têtes auxquels ils sont joints. Enfin, on montre que ben 1 et ben 2 , sont également directement liés à certains sens non collocatifs du marqueur considéré. Ainsi, la problématique de la collocation discursive croise celle de la polysémie.