bluuebunny/crossref_metadata_2025_split huggingface dataset:
Root Caries in Scandinavia in the 1980's and Future Trends to be Expected in Dental Caries Experience in Adults
Authors: Fejerskov O. , Baelum V. , Østergaard E.S. 
Published: January 2017

The large variety of diagnostic criteria used adds some uncertainty to comparisons of recent clinical and epidemiological data on root caries in Scandinavia. Nevertheless, it is apparent that the prevalence of frank carious cavities on the root among 60+-year-olds is about 30-40%. When inactive and recurrent lesions and fillings are included, the prevalence is almost 100% in 60+-year-olds. At this age, the mean number of root surface fillings is about 7, and the mean number of active caries lesions ranges from 0.9 to 3.4. The degree of gingival recession does not appear to be a direct measure of root caries risk in a population. When the number of teeth at risk is accounted for, the age-dependent increase in prevalence of root caries is very weak. Therefore, comparisons of root caries prevalence between populations are meaningful only when information on number of teeth present and teeth at risk is also available. Recent studies from various parts of the world have demonstrated that caries is ubiquitous in all populations and that caries progression continues throughout life. The impact of this on trends in prevalence and incidence of dental caries in adults is discussed in the light of what is known about the natural history of dental caries.
Modern Radiographic Methods in the Diagnosis of Periodontal Disease
Authors: Van der Stelt P.F. 
Published: January 2017

For many years, radiographs have been a valuable aid in the diagnosis of periodontal disease and the evaluation of treatment effects. Computer-based image acquisition and processing techniques will now further increase the importance of radiography in periodontal diagnosis. Temporal changes of lesions can be made easily visible by means of subtraction radiography based on digital images. This process requires a pair of images with identical gray-level distributions and projection geometry. The gray-level distribution and perspective projection of images can be corrected by means of digital image processing. A pair of identical images can thus be obtained without mechanical alignment of patient, film, and x-ray source. Algorithms have been developed for automatical determination of the borders of lesions and can subsequently produce quantitative information ranging from simple distance measurements to advanced multidimensional quantitation of image parameters. Accurate volume measurements can be carried out by the utilization of calibration wedges in the image. Image reconstruction procedures, such as tomosynthesis, provide information about the third dimension, which is normally lost in conventional radiographic projections. The buccal and lingual sites of the alveolar crest can be inspected separately. The progress of computer-aided procedures as discussed in this paper appears to have great potential for the improvement of the radiographic diagnosis of periodontal lesions. Especially, the benefits of reproducibility and quantitative evaluation of treatment effects will greatly improve the role of radiography in periodontics.
In Situ Models, Physico-Chemical Aspects
Authors: Ten Cate J.M. 
Published: January 2017

In situ (intra-oral) caries models are used for two purposes. First, they provide information about oral physiological processes. Such information helps to detail our knowledge of the oral ecosystem and to verify conclusions from in vitro experiments. Second, in situ models are utilized to test preventive agents in the phase between laboratory testing and clinical trials. Most investigations involving enamel inserts have been aimed at testing new dentifrices. The experimental designs of such studies usually do not allow one to draw conclusions on physico-chemical processes, e.g., because of single point measurements. Studies of model parameters (lesion type, lesion severity, and de/remineralization in time) constitute only a minority of the research reports. The most striking observation obtained with in situ models has been the significant differences in de/remineralization observed among individuals and, more importantly, within one individual during different time periods and between different sites in the same mouth (for review, see ten Cate et al., 1992). Regardless of this, some general findings can be inferred: During in situ demineralization, up to 62 vol%μm/day may be removed from enamel. For dentin specimens, this value may be as high as 89 vol%μm/day. For remineralization, during fluoride dentifrice treatment, a median deposition rate of 0.7%/day (for lesions with integrated mineral loss values between 2000 and 4000 vol%μm) is found. The rate of deposition seems to be correlated with the extent of the pre-formedlesion. This suggests that the number of sites (crystallite surface) available for calcium phosphate precipitation is an important parameter. However, the rate at which mineral ions are supplied (by saliva) could also be a limiting factor, as is shown in a theoretical analysis of mass-balance of enamel constituents. The few studies that have monitored caries development in time reveal that mineral loss (and also lesion progression in depth) from enamel in situ is linear in time. This is in contrast to results from laboratory findings.
Saliva Stimulation and Caries Prevention
Authors: Edgar W.M. , Higham S.M. , Manning R.H. 
Published: January 2017

The protective role of saliva is demonstrated by the rampant caries seen in human subjects with marked salivary hypofunction, and in desalivated animals. In normal cases, however, the relationship between saliva flow and coronal or root caries experience is doubtful, and to examine the concept that stimulation of saliva might have protective effects against caries, one must look beyond a simple correlation between caries and flow rate. Protective properties of saliva which increase on stimulation include salivary clearance, buffering power, and degree of saturation with respect to tooth mineral. These benefits are maximized when saliva is stimulated after the consumption of fermentable carbohydrates, by reducing the fall in plaque pH leading to demineralization and by increasing the potential for remineralization. Plaque acid production is neutralized, and experimental lesions in enamel are remineralized, when gum is chewed to stimulate saliva after a carbohydrate intake. The pH-raising effects are more easily explained by the buffering action of the stimulated saliva than by clearance of carbohydrates. The remineralization action depends upon the presence of fluoride. These findings suggest that the protective actions of saliva can be mobilized by appropriate salivary stimulation, and that in addition to established procedures such as tooth cleaning and fluoride regimens, eating patterns which lead to saliva stimulation to increase the potential for saliva protection might be included in recommendations for caries prevention. Confirmation of this concept in clinical tests is required.
Rehearsing Justice: Theatre, Sexuality and the Sacred
Authors: Rue Victoria 
Published: January 2017

The theatre actor’s process in a rehearsal hall is reality and metaphor. It can be a rehearsal for justice, where we can live freely. In this laboratory the actor becomes all of us. Like the actor, we inhabit our bodies and our sexualities, sometimes as spiritual practice, or as sacred and creative, even as incarnations. In particular, women’s bodies remember what it is like to be no-body and what it is like to be a some-body. The texts of women’s bodies contain their history of pain, wellness and illness. In creating a character, the actor creates a biography, an inner life, and the actor’s imagination aligns with the character’s situation. This is the creation of a character’s ‘living story’. Similarly, for all of us, this is akin to self knowledge. When women and sexual minorities tell their stories and listen to each others’ self knowledge, they are reading their bodies as texts. And worlds split open.
Intraoperative complications during revision shoulder arthroplasty: a study using the National Joint Registry dataset
Authors: Ingoe Helen M. , Holland Philip , Cowling Paul , Kottam Lucksy , Baker Paul N. , Rangan Amar 
Published: January 2017

Background The surgical options for revision shoulder arthroplasty and the number of procedures performed are increasing. However, little is known about the risk factors for intraoperative complications associated with this complex surgery. Methods The National Joint Registry (NJR) is a surgeon reported database recording information on major joint replacements including revision shoulder arthroplasty. Using multivariable binary logistic regression modelling, we analyzed 1445 revision shoulder arthroplasties reported to the NJR between April 2012 and 2015. Results The risk of developing a complication during revision surgery was greater than primary arthroplasty (5% versus 2.5%). An intraoperative fracture was the most common complication occurring in 50 (3.5%) cases. Nerve injuries were recorded for two (0.1%) patients and vascular injuries for one (0.1%) patient. The incidence of intraoperative fractures was higher in females than males (relative risk = 3.25; p = 0.005). Periprosthetic fracture as an indication for revision carried the highest risk for any complication (relative risk = 3.00, p = 0.06). Conclusions This is the largest registry study to date investigating the incidence and risk factors for intraoperative complications during revision shoulder arthroplasty. Females have over three times the risk of intraoperative fractures compared to males. This study will help inform surgeons to accurately counsel patients.
Complete genome sequence of the heavy metal resistant bacterium Agromyces aureus AR33T and comparison with related Actinobacteria
Authors: Corretto Erika , Antonielli Livio , Sessitsch Angela , Compant Stéphane , Höfer Christoph , Puschenreiter Markus , Brader Günter 
Published: January 2017

AbstractAgromyces aureus AR33T is a Gram-positive, rod-shaped and motile bacterium belonging to the Microbacteriaceae family in the phylum Actinobacteria that was isolated from a former zinc/lead mining and processing site in Austria. In this study, the whole genome was sequenced and assembled combining sequences obtained from Illumina MiSeq and Sanger sequencing. The assembly resulted in the complete genome sequence which is 4,373,124 bp long and has a GC content of 70.1%. Furthermore, we performed a comparative genomic analysis with other related organisms: 6 Agromyces spp., 4 Microbacteriaceae spp. and 2 other members of the class Actinobacteria.
Bondsmen, Servants, and Slaves: Social Hierarchies in the Heart of Seventeenth-Century North America
Authors: Milne George Edward 
Published: January 2017

Abstract
Between 1669 and 1686, René-Robert Cavelier de La Salle undertook several expeditions in North America. During his journeys, he relied on the services of numerous individuals who were under his control. Some were Indian slaves whom he exchanged like chattel during cross-cultural negotiations while other enslaved natives worked as guides, hunters, and interpreters. His European companions were also enmeshed in unequal relationships that ranged from contracted voyageurs to donnés who labored for Catholic missionaries. This article employs the records left by those who traveled with La Salle to reconstruct the varieties of bondage that they encountered in the heart of the continent.
Phylogeny, environment and sexual communication across the Drosophila genus
Authors: Jezovit Jacob A. , Levine Joel D. , Schneider Jonathan 
Published: January 2017

ABSTRACT
Social behaviour emerges from the local environment but is constrained by the animal's life history and its evolutionary lineage. In this perspective, we consider the genus Drosophila and provide an overview of how these constraints can shape how individuals interact. Our focus is restricted to visual and chemical signals and how their use varies across species during courtship – currently the only social behaviour well-studied across many Drosophila species. We broadly categorize species into four climatic groups – cosmopolitan, tropical, temperate and arid – which serve as discussion points as we review comparative behavioural and physiological studies and relate them to the abiotic conditions of a species environment. We discuss how the physiological and behavioural differences among many fly species may reflect life history differences as much as, or even more than, differences in phylogeny. This perspective serves not only to summarize what has been studied across drosophilids, but also to identify questions and outline gaps in the literature worth pursuing for progressing the understanding of behavioural evolution in Drosophila.
The ecology and evolution of social behavior in microbes
Authors: Tarnita Corina E. 
Published: January 2017

ABSTRACTCooperation has been studied extensively across the tree of life, from eusociality in insects to social behavior in humans, but it is only recently that a social dimension has been recognized and extensively explored for microbes. Research into microbial cooperation has accelerated dramatically and microbes have become a favorite system because of their fast evolution, their convenience as lab study systems and the opportunity for molecular investigations. However, the study of microbes also poses significant challenges, such as a lack of knowledge and an inaccessibility of the ecological context (used here to include both the abiotic and the biotic environment) under which the trait deemed cooperative has evolved and is maintained. I review the experimental and theoretical evidence in support of the limitations of the study of social behavior in microbes in the absence of an ecological context. I discuss both the need and the opportunities for experimental investigations that can inform a theoretical framework able to reframe the general questions of social behavior in a clear ecological context and to account for eco-evolutionary feedback.
Volumetry of the dominant intraprostatic tumour lesion: intersequence and interobserver differences on multiparametric MRI
Authors: Harvey Hugh , Orton Matthew R , Morgan Veronica A , Parker Chris , Dearnaley David , Fisher Cyril , deSouza Nandita M 
Published: January 2017

Objective:
To establish the interobserver reproducibility of tumour volumetry on individual multiparametric (mp) prostate MRI sequences, validate measurements with histology and determine whether functional to morphological volume ratios reflect Gleason score.

Methods:
41 males with prostate cancer treated with prostatectomy (Cohort 1) or radical radiotherapy (Cohort 2), who had pre-treatment mpMRI [T 2 weighted (T2W) MRI, diffusion-weighted (DW)-MRI and dynamic contrast-enhanced (DCE)-MRI], were studied retrospectively. Dominant intraprostatic lesions (DIPLs) were manually delineated on each sequence and volumes were compared between observers (n = 40 analyzable) and with radical prostatectomy (n = 20). Volume ratios of DW-MRI and DCE-MRI to T2W MRI were documented and compared between Gleason grade 3 + 3, 3 + 4 and 4 + 3 or greater categories.

Results:
Limits of agreement of DIPL volumes between observers were: T2W MRI 0.9, −1.1 cm3, DW-MRI 1.3, −1.7 cm3 and DCE-MRI 0.74, −0.89 cm3. In Cohort 1, T2W volumes overestimated fixed specimen histological volumes (+33% Observer 1, +16% Observer 2); DW- and DCE-MRI underestimated histological volume, the latter markedly so (−32% Observer 1, −79% Observer 2). Differences between T2W, DW- and DCE-MRI volumes were significant (p &lt; 10−8). The ratio of DW-MRI volume (73.9 ± 18.1% Observer 1, 72.5 ± 21.9% Observer 2) and DCE-MRI volume (42.6 ± 24.6% Observer 1, 34.3 ± 24.9% Observer 2) to T2W volume was significantly different (p &lt; 10−8), but these volume ratios did not differ between the Gleason grades.

Conclusion:
The low variability of the DIPL volume on T2W MRI between Observers and agreement with histology indicates its suitability for delineation of gross tumour volume for radiotherapy planning. The volume of cellular tumour represented by DW-MRI is greater than the vascular (DCE) abnormality; ratios of both to T2W volume are independent of Gleason score.

Advances in knowledge:
(1) Manual volume measurement of tumour is reproducible within 1 cm3 between observers on all sequences, confirming suitability across observers for radiotherapy planning. (2) Volumes derived on T2W MRI most accurately represent in vivo lesion volumes. (3) The proportion of cellular (DW-MRI) or vascular (DCE-MRI) volume to morphological (T2W MRI) volume is not affected by Gleason score.
Cdc14 phosphatase directs centrosome re-duplication at the meiosis I to meiosis II transition in budding yeast
Authors: Fox Colette , Zou Juan , Rappsilber Juri , Marston Adele L. 
Published: January 2017

BackgroundGametes are generated through a specialized cell division called meiosis, in which ploidy is reduced by half because two consecutive rounds of chromosome segregation, meiosis I and meiosis II, occur without intervening DNA replication. This contrasts with the mitotic cell cycle where DNA replication and chromosome segregation alternate to maintain the same ploidy. At the end of mitosis, CDKs are inactivated. This low CDK state in late mitosis/G1 allows for critical preparatory events for DNA replication and centrosome/spindle pole body (SPB) duplication. However, their execution is inhibited until S phase, where further preparatory events are also prevented. This “licensing” ensures that both the chromosomes and the centrosomes/SPBs replicate exactly once per cell cycle, thereby maintaining constant ploidy. Crucially, between meiosis I and meiosis II, centrosomes/SPBs must be re-licensed, but DNA re-replication must be avoided. In budding yeast, the Cdc14 protein phosphatase triggers CDK down regulation to promote exit from mitosis. Cdc14 also regulates the meiosis I to meiosis II transition, though its mode of action has remained unclear.MethodsFluorescence and electron microscopy was combined with proteomics to probe SPB duplication in cells with inactive or hyperactive Cdc14.ResultsWe demonstrate that Cdc14 ensures two successive nuclear divisions by re-licensing SPBs at the meiosis I to meiosis II transition. We show that Cdc14 is asymmetrically enriched on a single SPB during anaphase I and provide evidence that this enrichment promotes SPB re-duplication. Cells with impaired Cdc14 activity fail to promote extension of the SPB half-bridge, the initial step in morphogenesis of a new SPB. Conversely, cells with hyper-active Cdc14 duplicate SPBs, but fail to induce their separation.ConclusionOur findings implicate reversal of key CDK-dependent phosphorylations in the differential licensing of cyclical events at the meiosis I to meiosis I transition.
Reductions and conservation laws for BBM and modified BBM equations
Authors: Khorshidi Maryam , Nadjafikhah Mehdi , Jafari Hossein , Al Qurashi Maysaa 
Published: January 2017

Abstract
In this paper, the classical Lie theory is applied to study the Benjamin-Bona-Mahony (BBM) and modified Benjamin-Bona-Mahony equations (MBBM) to obtain their symmetries, invariant solutions, symmetry reductions and differential invariants. By observation of the the adjoint representation of Mentioned symmetry groups on their Lie algebras, we find the primary classification (optimal system) of their group-invariant solutions which provides new exact solutions to BBM and MBBM equations. Finally, conservation laws of the BBM and MBBM equations are presented. Some aspects of their symmetry properties are given too.
Minimization and Eulerian Formulation of
Differential Geormetry Based Nonpolar
Multiscale Solvation Models
Authors: Chen Zhan 
Published: January 2017

Abstract
In this work, the existence of a global minimizer for the previous Lagrangian formulation of nonpolar
solvation model proposed in [1] has been proved. One of the proofs involves a construction of a phase field
model that converges to the Lagrangian formulation. Moreover, an Eulerian formulation of nonpolar solvation
model is proposed and implemented under a similar parameterization scheme to that in [1]. By doing so,
the connection, similarity and difference between the Eulerian formulation and its Lagrangian counterpart
can be analyzed. It turns out that both of them have a great potential in solvation prediction for nonpolar
molecules, while their decompositions of attractive and repulsive parts are different. That indicates a distinction
between phase field models of solvation and our Eulerian formulation.
Plants adaptation to control nitrification process
in tropical region; case study with Acrocomia totai
and Brachiaria humidicola plants
Authors: Souri Mohammad Kazem 
Published: January 2017

Abstract
In this study we focused on nitrification inhibition
properties from tropical and subtropical plants; Acrocomia totai (palm tree) and Brachiaria humidicola (grass plant).
Hexane extracted seed oil as well as dry powder of seed covers was applied in a quick nitrification bioassay for 24 or 50 hours to investigate their effects on nitrification
process. Similarly B. humidicola shoot homogenates were applied in the same quick nitrification bioassay for their potential inhibitory effects on nitrification. Results showed
that seed oil as well as seed covers from A. totai were significantly inhibited the nitrification rates in the quick nitrification bioassay test compared to distilled water
control. In a separate experiment, it was found that shoots but not roots homogenates from B. humidicola grasses were efficiently retarded nitrification rates compared to
water control. Therefore, including these plant genotypes together with main crops (intercropping) or as alternative crops, could effectively reduce soil nitrification process
and leading to better Nutilization.
Synthesis and luminescence of some rare earth metal complexes
Authors: Bochkarev Mikhail N. , Pushkarev Anatoly P. 
Published: January 2017

AbstractIn the present paper the synthesis, photoand electroluminescent properties of new rare earth metal complexes prepared and studied at the Razuvaev Institute of Organometallic Chemistry during the last decade are reviewed. The obtained compounds give luminescence in UV, visible and NIR regions. The substituted phenolates, naphtholates, mercaptobenzothiazolate, 8-oxyquinolinolate, polyfluorinated alcoholates and chalcogenophosphinates were used as ligands. The synthesis and structure of unusual three–nuclear sulfidenitride clusters of Nd and Dy are described. The new excitation mechanism of ytterbium phenolates and naphtholates, which includes the stage of reversible reduction of Yb to divalent state and oxidation of the ligands in the excitation process, is discussed.
Manipulation of colloids by optical and electrical control of disclination lines in liquid crystals
Authors: Kasyanyuk D. , Pagliusi P. , Mazzulla A. , Tomylko S. , Reshetnyak V. , Reznikov Yu. , Provenzano C. , Giocondo M. , Vasnetsov M. , Yaroshchuk O. , Cipparrone G. 
Published: January 2017

AbstractWe report two viable strategies to assemble and manipulate arrays of nano- and micro-particles by means of topological defects (TDs) in anisotropic fluids. Exploiting different boundary conditions, single TD, 1D arrays of TDs are tailored in liquid crystal twist cells. In a first approach, light-guided control of particles captured in disclination lines is demonstrated involving the use of a photosensitive chiral dopant within a nematic host. In the second one, an applied voltage enables a continuous displacement and deformation of the particles arrays. The reported results open up new possibilities for managing nano- and micro-metric objects over large distances.