bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fermi GBM Observations of GRB 150101B: A Second Nearby Event with a Short Hard Spike and a Soft Tail
Authors: Burns E. , Veres P. , Connaughton V. , Racusin J. , Briggs M. S. , Christensen N. , Goldstein A. , Hamburg R. , Kocevski D. , McEnery J. , Bissaldi E. , Canton T. Dal , Cleveland W. H. , Gibby M. H. , Hui C. M. , Kienlin A. von , Mailyan B. , Paciesas W. S. , Roberts O. J. , Siellez K. , Stanbro M. , Wilson-Hodge C. A. 
Published: August 2018

Abstract
In light of the joint multimessenger detection of a binary neutron star merger as the gamma-ray burst GRB 170817A and in gravitational waves as GW170817, we reanalyze the Fermi Gamma-ray Burst Monitor data of one of the closest short gamma-ray bursts (SGRBs): GRB 150101B. We find that this burst is composed of a short hard spike followed by a comparatively long soft tail. This apparent two-component nature is phenomenologically similar to that of GRB 170817A. While GRB 170817A was distinct from the previously known population of SGRBs in terms of its prompt intrinsic energetics, GRB 150101B is not. Despite these differences, GRB 150101B can be modeled as a more on-axis version of GRB 170817A. Identifying a similar signature in two of the closest SGRBs suggests that the soft tail is common, but generally undetectable in more distant events. If so, it will be possible to identify nearby SGRBs from the prompt gamma-ray emission alone, aiding the search for kilonovae.
Juste valeur et gouvernance bancaire : une analyse internationale
Authors: Guiselin Renald , Maati Jérôme 
Published: August 2018

La norme IFRS 13 et la norme SFAS 157 aux États-Unis imposent aux entreprises une publication des techniques de valorisation à la juste valeur du bilan selon trois niveaux afin d’améliorer la transparence de l’information comptable. L’étude porte sur l’influence des mécanismes de gouvernance d’entreprise sur la pertinence de l’évaluation à la juste valeur par niveaux en utilisant le modèle modifié de J. Ohlson (1995). À partir d’un échantillon international de 730 banques entre 2008 et 2012, les résultats montrent un impact significatif de certains attributs de gouvernance, en particulier une relation négative entre la taille du conseil d’administration et la valorisation à la juste valeur du niveau 3. Les mécanismes de gouvernance peuvent donc avoir un effet complémentaire à l’information comptable lorsqu’elle est moins fiable.
La comptabilité en juste valeur est-elle court-termiste ?
Authors: Demaria Samira , Rigot Sandra 
Published: August 2018

Cet article cherche à investiguer si la comptabilité en juste valeur peut avoir des effets court-termistes sur le financement de l’investissement à long terme. Pour cela, nous avons étudié les réponses à la consultation Européenne sur le financement et l’investissement à long terme. Cette étude révèle qu’une majorité des répondants considère la comptabilité en juste valeur court-termiste et met en avant trois impacts négatifs pour les activités de long terme des intermédiaires financiers bancaires et non bancaires (investisseurs institutionnels) : l’introduction d’une plus forte volatilité dans les états financiers (bilan et compte de résultat) ; des comportements court-termistes et pro-cycliques dans la prise de décision des investisseurs et des managers. Il identifie également six alternatives différentes, dont cinq relèvent de la technique comptable parmi lesquelles la création d’une catégorie comptable permettant de représenter les investissements à long terme en prenant en compte l’horizon de détention des actifs.
Influence of irrigating agents on fiber postpush-out bond strength to radicular dentin sections with the different adhesive system
Authors: Haralur Satheesh B. , Alasabi Asim Nasser A. , Al Qahtani Sultan A. Abohathrah , Alqahtani Saeed Musleh S. 
Published: August 2018

ABSTRACT
Objective: The objective of this study is to evaluate the effect of irrigating agents on push-out bond strength of resin postcemented with various adhesive systems at different radicular dentin sections. Materials and Methods:Sixty single-rooted premolar teeth were root canal treated, subsequently decorated at cementoenamel junction. The endodontic postspace was irrigated with 5.25% sodium hypochlorite (NaOCl) and 17% ethylenediaminetetraacetic acid (EDTA) for Group A (n = 30) and Group B (n = 30), respectively. The sample from each group was subdivided into three groups (10) according to luting protocol of etch-wash, self-etch, and self-adhesive. Individual teeth with cemented resin postsamples were sectioned into coronal, middle, and apical segments. Subsequently, subjected for pushout bond strength test by applying a load at 0.5 mm/min speed. The data were analyzed by three-way analysis of variance and Tukey comparison test at a significant difference level of 0.05.Results: The coronal section with 5.25% NaOCl irrigation and self-etch luting protocol provided the highest push out strength at 16.282 Mpa. The etch-wash luting protocol in both irrigations showed the lesser bond strength at 8.273 and 8.493 MPa, respectively, in coronal section.Conclusions: The self-etch adhesive system showed better push out bond strength and 17% EDTA had a negative influence on self-etch bond strength. The coronal sections had highest bond strength in comparison with apical radicular dentin sections.
Effectiveness of two interactive educational methods to teach tobacco cessation counseling for senior dental students
Authors: Ahmadian Mina , Khami Mohammad Reza , Ahamdi Arezoo Ebn , Razeghi Samaneh , Yazdani Reza 
Published: August 2018

ABSTRACT
Objective: Nowadays, one of the major health problems in many countries is tobacco use. Dental professionals are in a unique position to promote smoking cessation since they have the opportunity for regular interaction with their patients. The purpose of the present study was to compare the effectiveness of two educational methods to teach tobacco cessation counseling (TCC) in dental practice for senior dental students. Materials and Methods: In this interventional study, 93 eligible senior dental students from two dental schools in Tehran, Iran were randomly divided into two groups. Two educational programs, role play (RP) and problem-based learning (PBL), with the same aim about TCC in dental practice, were developed and implemented for the two groups. The score of knowledge, attitude, and skill were determined in both groups before and after participation in the course using a questionnaire. The changes in the scores from pre- to post-test were statistically analyzed using repeated measure ANOVA test. Results: Total scores of knowledge, attitude, and skill of the participants showed improvements when compared to scores before training (P < 0.001, P = 0.003, and P < 0.001, respectively). However, the differences between the two study methods were statistically insignificant (P > 0.05). Conclusion: The results suggested that TCC training through RP and PBL methods leads to improvement in knowledge, attitude, and skills of dental students in the short-term evaluation.
Evaluation of crestal bone resorption around cylindrical and conical implants following 6 months of loading: A randomized clinical trial
Authors: Sargolzaie Naser , Arab Hamid Reza , Moghaddam Marzieh Mohammadi 
Published: August 2018

ABSTRACT
Objective: The purpose of this clinical study was to evaluate the effect of implant body form (cylindrical and conical implants) on crestal bone levels during 6 months' follow-up after loading. Materials and Methods: A total of 32 SPI implants (19 conical implants/13 cylindrical implants) were randomly placed in 12 male patients using a submerged approach. None of the patients had compromising medical conditions or parafunctional habits. Periapical radiographs using the parallel technique were taken after clinical loading and 6 months later. Clinical indices including pocket depth and bleeding on probing (BOP) were recorded on 6-month follow-up. Data were analyzed by independent samples t-test and Chi-square test with a significance level of 0.05. Results: Six months after loading, crestal bone loss was 0.84 (±0.29) mm around the cylindrical implants and 0.73 (±0.62) mm around the conical types, which was not significantly different (P = 0.54). Pocket depth around the cylindrical and conical implants was 2.61 (±0.45) mm and 2.36 (±0.44) mm, respectively (P = 0.13). BOP was observed among 53.8% and 47.4% of the cylindrical implants and conical (P = 0.13). Bone loss and pocket depth in the maxilla and mandible had no significant difference (P = 0.46 and P = 0.09, respectively). Conclusion: In this study, although bone loss and clinical parameters were slightly higher in the cylindrical implants, there was no significant difference between the conical- and cylindrical-shaped implants.
Statistical Analysis of Cotton Cultivated Area, Production and Price
Authors: Laghari A. H. , H. Talpur M. G. , I. Rajput R. M. , Leghari S. J. , Ali U. , Laghari G. M. , Sanjrani M. A. 
Published: August 2018

Cotton is one of the most important commercial crop of Pakistan and significantly contributes in the economy. Statistically analysis of cotton status of cultivated area, production and price at very basic level can help for better future policy and management by providing primary figures. Therefore, a survey research study was conducted during year 2014 at Taluka Sakrand district Shaheed Benazirabad, Sindh, Pakistan. The Primary (ground reality) and secondary (history) data were collected. The questionnaire comprised on cultivated area acres of cotton, production/acre (kg) and price 40/kg ($US). A total of 294 farmers from 07 different union councils (Pir Zakri P.Z, Sakrand SKD, Hamal Faqir H.F, Dalel Dero D.D, Marvi MRI, Karam Jamali K.J and Guhram Mari G.M) were selected. The secondary data were obtained for 14 years. The results revealed by primary data showed that max-avg 12.52 acres and min-avg 5.20 acres cultivated area were measured in K.J and G.M respectively. While, the greatest cultivated area 25 acres in MRI and reduced 01 acre in H.F and SKD were recorded. In case of production, high-avg 883.6 kg/acre and highest 1200.00 kg/acreobserved in H.F. The low-avg 606.4 kg/acre with lowest 200.00 kg/acre noticed in K.J UC. Furthermore, high-avg-price in D.D and low-avg-price in P.Z, $24.13-19.99 40/kg respectively was observed. However, highest price $29.70 40/kg in H.F was concluded compare to rest of UCs. A strong correlation (0.98) was observed between H.F and G.M for all observations. The Secondary data results were obtained by using one-way analysis and F_ test was conducted to analyze the significance level tested at 5% (0.05). The F-values 0.64 and 0.7 for cultivated area and production were calculated for seven UCs. In the study, the secondary data results with 0.82 and 0.8 values suggest that H0 must be accepted. Hence, the correlation coefficients, between area and the production had strong correlation 0.8 for the seven UCs. Also, strong correlation 0.522 was detected between price and production.
Darwin’s naturalization hypothesis does not explain the spread of nonnative weed species naturalized in México
Authors: Sánchez-Blanco Judith , Vega-Peña Ernesto V. , Espinosa-García Francisco J. 
Published: August 2018

BackgroundDespite numerous tests of Darwin’s naturalization hypothesis (DNH) evidence for its support or rejection is still contradictory. We tested a DNH derived prediction stating that nonnative species (NNS) without native congeneric relatives (NCR) will spread to a greater number of localities than species with close relatives in the new range. This test controlled the effect of residence time (Rt) on the spread of NNS and used naturalized species beyond their lag phase to avoid the effect of stochastic events in the establishment and the lag phases that could obscure the NCR effects on NNS.MethodsWe compared the number of localities (spread) occupied by NNS with and without NCR using 13,977 herbarium records for 305 NNS of weeds. We regressed the number of localities occupied by NNSversus Rtto determine the effect of time on the spread of NNS. Then, we selected the species withRtgreater than the expected span of the lag phase, whose residuals were above and below the regression confidence limits; these NNS were classified as widespread (those occupying more localities than expected byRt) and limited-spread (those occupying fewer localities than expected). These sets were again subclassified into two groups: NNS with and without NCR at the genus level. The number of NNS with and without NCR was compared usingχ2tests and Spearman correlations between the residuals and the number of relatives. Then, we grouped the NNS using 34 biological attributes and five usages to identify the groups’ possible associations with spread and to test DNH. To identify species groups, we performed a nonmetric multidimensional scaling (NMDS) analysis and evaluated the influences of the number of relatives, localities, herbarium specimens,Rt, and residuals of regression. The Spearman correlation and the Mann–WhitneyUtest were used to determine if the DNH prediction was met. Additionally, we used the clustering objects on subsets of attributes (COSA) method to identify possible syndromes (sets of biological attributes and usages) associated to four groups of NNS useful to test DNH (those with and without NCR and those in more and fewer localities than expected byRt).ResultsResidence time explained 33% of the variation in localities occupied by nonnative trees and shrubs and 46% of the variation for herbs and subshrubs. The residuals of the regression for NNS were not associated with the number or presence of NCR. In each of the NMDS groups, the number of localities occupied by NNS with and without NCR did not significantly differ. The COSA analysis detected that only NNS with NCR in more and fewer localities than expected share biological attributes and usages, but they differ in their relative importance.DiscussionOur results suggest that DNH does not explain the spread of naturalized species in a highly heterogeneous country. Thus, the presence of NCR is not a useful characteristic in risk analyses for naturalized NNS.
Tuning the Coupling in Single‐Molecule Heterostructures: DNA‐Programmed and Reconfigurable Carbon Nanotube‐Based Nanohybrids
Authors: Freeley Mark , Attanzio Antonio , Cecconello Alessandro , Amoroso Giuseppe , Clement Pierrick , Fernandez Gustavo , Gesuele Felice , Palma Matteo 
Published: August 2018

AbstractHerein a strategy is presented for the assembly of both static and stimuli‐responsive single‐molecule heterostructures, where the distance and electronic coupling between an individual functional nanomoiety and a carbon nanostructure are tuned via the use of DNA linkers. As proof of concept, the formation of 1:1 nanohybrids is controlled, where single quantum dots (QDs) are tethered to the ends of individual carbon nanotubes (CNTs) in solution with DNA interconnects of different lengths. Photoluminescence investigations—both in solution and at the single‐hybrid level—demonstrate the electronic coupling between the two nanostructures; notably this is observed to progressively scale, with charge transfer becoming the dominant process as the linkers length is reduced. Additionally, stimuli‐responsive CNT‐QD nanohybrids are assembled, where the distance and hence the electronic coupling between an individual CNT and a single QD are dynamically modulated via the addition and removal of potassium (K+) cations; the system is further found to be sensitive to K+ concentrations from 1 pM to 25 × 10−3m. The level of control demonstrated here in modulating the electronic coupling of reconfigurable single‐molecule heterostructures, comprising an individual functional nanomoiety and a carbon nanoelectrode, is of importance for the development of tunable molecular optoelectronic systems and devices.
Don't throw out the sympatric speciation with the crater lake water: fine-scale investigation of introgression provides equivocal support for causal role of secondary gene flow in one of the clearest examples of sympatric speciation
Authors: Richards Emilie J. , Poelstra Jelmer W. , Martin Christopher H. 
Published: August 2018

AbstractGenomic data has revealed complex histories of colonization and repeated gene flow previously unrecognized in some of the most celebrated examples of sympatric speciation and radiation. However, much of the evidence for secondary gene flow into these radiations comes from summary statistics calculated from sparse genomic sampling without knowledge of which specific genomic regions introgressed. This tells us little about how gene flow potentially influenced sympatric diversification. Here, we investigated whole genomes of Barombi Mbo crater lake cichlids for fine-scale patterns of introgression with neighboring riverine cichlid populations. We found evidence of secondary gene flow into the radiation scattered across &lt;0.24% of the genome; however, from our analyses, it is not clear if the functional diversity in these regions contributed to the ecological, sexual, and morphological diversity found in the lake. Unlike similar studies, we found no obvious candidate genes for adaptive introgression and we cannot rule out that secondary gene flow was predominantly neutral with respect to the diversification process. We also found evidence for differential assortment of ancestral polymorphisms found in riverine populations between sympatric sister species, suggesting the presence of an ancestral hybrid swarm. Although the history of gene flow and colonization is more complicated than previously assumed, the lack of compelling evidence for secondary gene flow's role in species diversification suggests that we should not yet rule out one of the most celebrated examples of sympatric speciation in nature without a more thorough investigation of the timing and functional role of each introgressed region.
Constraints on anharmonic corrections of fuzzy dark matter
Authors: Cembranos J. A. R. , Maroto A. L. , Núñez Jareño S. J. , Villarrubia-Rojo H. 
Published: August 2018

AbstractThe cold dark matter (CDM) scenario has proved successful in cosmology. However, we lack a fundamental understanding of its microscopic nature. Moreover, the apparent disagreement between CDM predictions and subgalactic-structure observations has prompted the debate about its behaviour at small scales. These problems could be alleviated if the dark matter is composed of ultralight fieldsm∼ 10−22eV, usually known as fuzzy dark matter (FDM). Some specific models, with axion-like potentials, have been thoroughly studied and are collectively referred to as ultralight axions (ULAs) or axion-like particles (ALPs). In this work we consider anharmonic corrections to the mass term coming from a repulsive quartic self-interaction. Whenever this anharmonic term dominates, the field behaves as radiation instead of cold matter, modifying the time of matter-radiation equality. Additionally, even for high masses, i.e. masses that reproduce the cold matter behaviour, the presence of anharmonic terms introduce a cut-off in the matter power spectrum through its contribution to the sound speed. We analyze the model and derive constraints using a modified version of class and comparing with CMB and large-scale structure data.
The onset of hazel wood formation in Norway spruce (Picea abies [L.] Karst.) stems
Authors: Račko Vladimír , Kačík František , Mišíková Oľga , Hlaváč Pavol , Čunderlík Igor , Ďurkovič Jaroslav 
Published: August 2018

Abstract
Key message
Fungal infection was outlined as a potential reason for the onset of indented annual growth ring formation during the juvenile phase of hazel wood growth. Annual growth ring indentations resulted from the formation of disturbed zones which originated solely in close proximity to leaf traces.

Context
Hazel wood is an abnormal type of woody tissue that is formed as a result of exogenous stimuli that may trigger long-term responses in the cambium. Cambial responses produce anatomical alterations in the surrounding xylem tissue that can be observed as an indentation of annual growth rings. The chemical profiles of lignan hydroxymatairesinol may provide an indication of its possible role in the protection of a living tree against the spread of a fungal or microbial infection at the onset of indentation.

Aims
The objectives of this study were to reveal the anatomical differences in the altered woody tissue of Picea abies hazel wood at both the onset and the later stages of annual growth ring indentation and to determine the chemical profiles for hydroxymatairesinol upon elicitation by a fungal infection in the disturbed zones.

Methods
Light and scanning electron microscopy observations were carried out on radial, tangential, and cross sections of hazel wood zones separated from P. abies stems. Concentrations of hydroxymatairesinol were determined for both the disturbed zones and the non-indented zones using a gradient high-performance liquid chromatography.

Results
The formation of disturbed zones was accompanied by significant changes in both the direction and width of the tracheids which produced an abnormal formation of intertwined and twisted tracheids. Fungal hyphae, radial cell wall cracks, and unusually large cross-field pitting were all found in the tracheids of the disturbed zones.

Conclusion
The content of hydroxymatairesinol in the acetone extract determined from the disturbed zones was 3.4 times greater than that present in the non-disturbed tissues. By means of vascular dysfunction in the leaf traces, host trees responded to the fungal infection by plugging the lumens of conductive leaf trace tissue and filling the vascular pathway with polyphenolic compound deposits.
Exploration of the influence of insecure attachment and parental maltreatment on the incidence and course of adult clinical depression
Authors: Brown George W. , Harris Tirril O. , Craig Thomas K. J. 
Published: August 2018

AbstractBackgroundBoth childhood maltreatment and insecure attachment are known to be associated with depression in adulthood. The extent insecure attachment increases the risk of adult clinical depression over that of parental maltreatment among women in the general population is explored, using those at high risk because of their selection for parental maltreatment together with an unselected sample.MethodsSemi-structured interviews and investigator-based measures are employed.ResultsInsecure attachment is highly associated with parental maltreatment with both contributing to the risk of depression, with attachment making a substantial independent contribution. Risk of depression did not vary by type of insecure attachment, but the core pathways of the dismissive and enmeshed involved the whole life course in terms of greater experience of a mother's physical abuse and their own anger as an adult, with both related to adult depression being more often provoked by a severely threatening event involving humiliation rather than loss. By contrast, depression of the insecure fearful and withdrawn was more closely associated with both current low self-esteem and an inadequately supportive core relationship. In terms of depression taking a chronic course, insecure attachment was again a key risk factor, but with this now closely linked with the early experience of a chaotic life style but with this involving only a modest number of women.ConclusionsBoth insecure attachment and parental maltreatment contribute to an increased risk of depression with complex effects involving types of insecure attachment.