bluuebunny/crossref_metadata_2025_split huggingface dataset:
A systematic review and meta-analysis of failure to take history as a barrier of reporting child abuse by dentists in private and state clinics
Authors: Nilchian Firoozeh , Tarrahi Mohammad Javad , Zare Narges 
Published: June 2021

Background:
Since the symptoms of child abuse and neglect often manifest in the orofacial region, the dental team has a key role in identifying children subjected to abuse. This study was aimed to explore the prevalence of failure to take history as a barrier to reporting child abuse by dentist around the world.

Materials and Methods:
In this systematic review and meta-analysis, PubMed, Embase, Scopus, Google Scholar, ProQuest, Cochrane, and ISI databases were searched for the cross-sectional articles in English languages on barriers to reporting child abuse and lack of knowledge about referral procedures by dentists since 1985 using Medical Subject Headings (MeSH). The full-texts of all included articles were obtained and assessed for quality according to Newcastle–Ottawa Scale adapted for cross-sectional studies. The qualified articles were then studied thoroughly and results were extracted. Data were analyzed by Comprehensive Meta-Analysis software using meta-analysis and random effects model. Heterogeneity was determined by Q-test and I-square index.

Results:
A total of 17 articles were included in the meta-analysis. The prevalence of lack of knowledge about referral procedures as a barrier was determined according to the meta-analysis of the number of relevant articles and was (55%, confidence interval: 0.48, 0.62).

Conclusion:
The analysis of various studies revealed lack of information about referral procedures as an important barrier to report child abuse by dentists.
A comparative evaluation of the effect of three different concentrations of in-office bleaching agents on microhardness and surface roughness of enamel – An in vitro study
Authors: Goyal Khushboo , Saha Suparna Ganguly , Bhardwaj Anuj , Saha Mainak Kanti , Bhapkar Kaustubh , Paradkar Shrija 
Published: June 2021

Background:
To evaluate the changes in the micro-hardness and surface roughness of enamel treated with three different concentrations of in-office bleaching agents.

Materials and Methods:
In this in vitro study, 60 human incisors were divided into two groups (Group A and Group B). To obtain the baseline values, a Vickers tester was used to determine the surface microhardness in Group A, and a Surtronic tester was used for evaluation of surface roughness in Group B. Each group was then further subdivided into three subgroups and subjected to bleaching with Dash (Groups A1 and B1), Pola Office (Groups A2 and B2), and Opalescence Boost (Groups A3 and B3) containing 30%, 35%, and 40% hydrogen peroxide (HP), respectively. Samples were again subjected to testing to obtain the postbleaching values. Pre- and postbleaching data were analyzed by paired t-test. Intergroup comparison was carried out using one-way ANOVA (P ≤ 0.05).

Results:
A significant decrease in microhardness values was observed following bleaching in all the three groups, with Group A1 showing maximum percentage decrease (2.58%), followed by Group A2 (1.23%) and Group A3 (0.73%). Furthermore, an increase in surface roughness was observed following bleaching, with Group B1 showing maximum percentage increase (14.80%), followed by Group B2 (8.25%) and Group B3 (5.79%). However, there was no significant difference in either microhardness or surface roughness when comparing the postbleaching values among the three bleaching agents.

Conclusion:
In-office bleaching agents may adversely affect the microhardness and roughness of enamel surface which are not related to the concentration of HP used.
Awareness of the Standard of Care for Snakebite Management Among Physicians in Kerala: A Cross-sectional Study
Authors: Pillay Roshni , Rathish Balram , Pillay V. V. , Mukthar Faiz 
Published: June 2021

ABSTRACT.
Snakebite remains a largely neglected yet important cause of morbidity as well as mortality in Kerala. This study aimed to assess the knowledge about the standard of care for snakebite management among physicians in Kerala. This was a cross-sectional study using a questionnaire-based survey among 110 physicians from Kerala. The overall knowledge levels were assessed using a questionnaire with answers being scored as 0 for wrong answers and as 1 for correct answers. The total knowledge scores for all respondents were calculated, with a maximum possible score of 14 and a minimum possible score of 0. Comparisons were made between subsets of respondents. The questionnaire was administered to 110 physicians who fulfilled the predetermined criteria. The overall mean knowledge score during the study was 10.7 (standard deviation ± 2.9). However, there were certain pitfalls associated with the management of snakebite. In particular, questions about tourniquet use, bringing a dead snake to the physician, and the anti-snake venom test dose had high proportions of incorrect answers. Significantly higher knowledge levels were also observed in certain subgroups. There seems to be varying knowledge gaps associated with various aspects of snakebite management for certain subsets of respondents who are likely to benefit from specific training.
Exploring Citizens’ Perceptions-based Intangible Resources in the Public Sector: An Analysis of the Relation Between Wealth and Engagement and Trust in 17 Countries
Authors: Piqueiras Paloma , Canel Crespo María José 
Published: June 2021

Across the globe, public administrations are employing communication to develop programs to respond to the challenges of bringing society to the core of policy making and of searching for innovative ways to generate growth. But how much do these programs achieve, and to what extent are their consequences positive? Building on theorizing about intangible assets in the public sector and based on economic indicators as well as on survey data from 17 countries, this paper explores whether specific intangible assets that are citizens’ perceptions-based can operate as sources of growth. More specifically, the article looks at citizen engagement and trust, intangible resources that are built upon organizational behaviors as well as activated through communication. Results allow us to compare the relation of these resources with growth with the relation of tangible capital with growth in 17 countries. Based on findings, the article discusses implications for public sector communication.
Comparison of statistical downscaling methods for climate change impact analysis on precipitation-driven drought
Authors: Tabari Hossein , Paz Santiago Mendoza , Buekenhout Daan , Willems Patrick 
Published: June 2021

Abstract. General circulation models (GCMs) are the primary tools for evaluating the possible impacts of climate change; however, their results are coarse in temporal and spatial dimensions. In addition, they often show systematic biases compared to observations. Downscaling and bias correction of climate model outputs is thus required for local applications. Apart from the
computationally intensive strategy of dynamical downscaling, statistical
downscaling offers a relatively straightforward solution by establishing
relationships between small- and large-scale variables. This study compares
four statistical downscaling methods of bias correction (BC), the change factor of mean (CFM), quantile perturbation (QP) and an event-based weather generator (WG) to assess climate change impact on drought by the end of the 21st century (2071–2100) relative to a baseline period of 1971–2000 for the weather station of Uccle located in Belgium. A set of drought-related
aspects is analysed, i.e. dry day frequency, dry spell duration and total
precipitation. The downscaling is applied to a 28-member ensemble of Coupled Model Intercomparison
Project Phase 6 (CMIP6)
GCMs, each forced by four future scenarios of SSP1–2.6, SSP2–4.5, SSP3–7.0
and SSP5–8.5. A 25-member ensemble of CanESM5 GCM is also used to assess the significance of the climate change signals in comparison to the internal variability in the climate. A performance comparison of the downscaling methods reveals that the QP method outperforms the others in reproducing the magnitude and monthly pattern of the observed indicators. While all methods show a good agreement on downscaling total precipitation, their results differ quite largely for the frequency and length of dry spells. Using the downscaling methods, dry day frequency is projected to increase significantly in the summer months, with a relative change of up to 19 % for SSP5–8.5. At the same time, total precipitation is projected to decrease significantly by up to 33 % in these months. Total precipitation also significantly increases in winter, as it is driven by a significant intensification of extreme precipitation rather than a dry day frequency change. Lastly, extreme dry spells are projected to increase in length by up to 9 %.
The effect of soil properties on zinc lability and solubility in soils of Ethiopia – an isotopic dilution study
Authors: Mossa Abdul-Wahab , Gashu Dawd , Broadley Martin R. , Dunham Sarah J. , McGrath Steve P. , Bailey Elizabeth H. , Young Scott D. 
Published: June 2021

Abstract. Zinc (Zn) deficiency is a widespread nutritional problem in human populations, especially in sub-Saharan Africa (SSA). The Zn concentration of crops consumed depends in part on the Zn status of the soil. Improved
understanding of factors controlling the phyto-availability of Zn in soils
can contribute to potential agronomic interventions to tackle Zn deficiency, but many soil types in SSA are poorly studied. Soil samples (n=475) were collected from a large part of the Amhara Region of Ethiopia, where there is widespread Zn deficiency. Zinc status was quantified by measuring several fractions, including the pseudo-total (aqua regia digestion; ZnTot), available (DTPA (diethylenetriamine pentaacetate) extractable; ZnDTPA), soluble (dissolved in 0.01 M Ca(NO3); ZnSoln) and isotopically exchangeable Zn, using the enriched stable Zn isotope 70Zn (ZnE). Soil geochemical properties were assessed for their influence on Zn lability and solubility. A parameterized geochemical assemblage model (Windermere Humic Aqueous Model – WHAM) was also employed to predict the solid phase fractionation of Zn in tropical soils rather than using sequential chemical extractions. ZnTot ranged from 14.1 to 291 mg kg−1 (median = 100 mg kg−1), whereas ZnDTPA in the majority of soil samples was less than 0.5 mg kg−1, indicating widespread phyto-available Zn deficiency in these soils. The labile fraction of Zn in soil (ZnE as % ZnTot) was low, with median and mean values of 4.7 % and 8.0 %, respectively. Labile Zn partitioning between the solid and the solution phases of soil was highly pH dependent, where 94 % of the variation in the partitioning
coefficient of 70Zn was explained by soil pH. Similarly, 86 % of the variation in ZnSoln was explained by soil pH. Zinc distribution between adsorbed ZnE and ZnSoln was controlled by pH. Notably, Zn isotopic exchangeability increased with soil pH. This contrasts with literature on contaminated and urban soils and may arise from covarying factors, such as contrasting soil clay mineralogy across the pH range of the soils used in the current study. These results could be used to improve agronomic interventions to tackle Zn deficiency in SSA.
Corporate Mediation and Company Law
Authors: Allotti Valentina 
Published: June 2021

Corporate Mediation and Company Law
This article describes the legal framework on corporate mediation in Italy with a particular focus on the effects of the mediation clauses included in company by-laws. The available data on the use of corporate mediation indicate that such clauses are not commonly used. There is still resistance among the parties in a dispute to engage in dialogue through mediation, not only where corporate disputes are concerned. The author suggests that one way to expand the use of mediation would be to promote the introduction of mediation clauses in the articles of association of companies. She also suggests that recent trends in company law, notably the emergence of sustainability issues, related to the impact of business activity on the environment and society, and more broadly on human rights, may create new opportunities for the use of mediation to prevent and solve corporate-related disputes.
Retinal dysfunction induced in a mouse model of unilateral common carotid artery occlusion
Authors: Lee Deokho , Jeong Heonuk , Miwa Yukihiro , Shinojima Ari , Katada Yusaku , Tsubota Kazuo , Kurihara Toshihide 
Published: June 2021

Background
Retinal ischemic stresses are associated with the pathogenesis of various retinal vascular diseases. To investigate pathological mechanisms of retinal ischemia, reproducible, robust and clinically significant experimental rodent models are highly needed. Previously, we established a stable murine model of chronic hypoperfusion retinal injuries by permanent unilateral common carotid artery occlusion (UCCAO) and demonstrated chronic pathological processes in the ischemic retina after the occlusion; however, retinal functional deficits and other acute retinal ischemic injuries by UCCAO still remain obscure. In this study, we attempted to examine retinal functional changes as well as acute retinal ischemic alterations such as retinal thinning, gliosis and cell death after UCCAO.

Methods
Adult mice (male C57BL/6, 6–8 weeks old) were subjected to UCCAO in the right side, and retinal function was primarily measured using electroretinography for 14 days after the surgery. Furthermore, retinal thinning, gliosis and cell death were investigated using optical coherence tomography, immunohistochemistry and TUNEL assay, respectively.

Results
Functional deficits in the unilateral right retina started to be seen 7 days after the occlusion. Specifically, the amplitude of b-wave dramatically decreased while that of a-wave was slightly affected. 14 days after the occlusion, the amplitudes of both waves and oscillatory potentials were significantly detected decreased in the unilateral right retina. Even though a change in retinal thickness was not dramatically observed among all the eyes, retinal gliosis and cell death in the unilateral right retina were substantially observed after UCCAO.

Conclusions
Along with previous retinal ischemic results in this model, UCCAO can stimulate retinal ischemia leading to functional, morphological and molecular changes in the retina. This model can be useful for the investigation of pathological mechanisms for human ischemic retinopathies and furthermore can be utilized to test new drugs for various ischemic ocular diseases.
Sports Participation, Demographic Factors and Knee Symptom Severity in Riyadh, Saudi Arabia
Authors: Alamir Moaath A. , Altammami Abdulaziz F. , Binyousef Faris H. , Alharbi Ahmed A. , Alrakaf Feras A. 
Published: June 2021

Aims: to explore the prevalence of knee symptoms in the general population of Riyadh, Saudi Arabia, and evaluate the impact of sports participation and other demographic variables on the progression of knee symptoms in Riyadh, Saudi Arabia.
Study design: Cross-sectional study
Place and duration of study: A self-administered online survey was conducted in Riyadh, Saudi Arabia between September 2020 to March 2021.
Methodology: A total of 589 participants age 18 or older who reported concerns of knee symptoms and provided written informed consent were enrolled in the study. We excluded respondents who had undergone knee surgery (n = 16) and those diagnosed with rheumatoid arthritis or other types of arthritis (n = 25). We collected demographic information (eg, age, gender, types of engaged sports, sports participation hours, and frequency of participation per week) and knee symptoms and severity using the Lequesne index tool.
Results: Advanced age was significantly associated with a higher severity score (P < .001). We found a statistically significant association between body mass index and knee symptom severity. We noted no severe knee symptoms in participants engaging in weightlifting. Most participants (64.7%) reported that walking was their most frequent exercise, and knee symptoms were common. Of respondents who walk as their primary sport, 10.6% of them are considered disabled with a severe form of knee pain according to the Lequesne index (which uses the term “handicapped” rather than disabled).
Conclusion: Older and overweight respondents had a high prevalence of knee symptoms. Interestingly, the prevalence rates of individuals without knee symptoms did not differ regarding sport participation. Sports participation frequency did not change the prevalence or severity of knee symptoms, while longer exercise duration was associated with lower knee symptom severity rates.
Changes in fast axonal transport in sensory neurons during tadpole metamorphosis
Authors: Tang H.Z. , Hammerschlag R. , Chan H. , Smith R.S. 
Published: July 2002

AbstractFast axonal transport of radiolabeled protein was examined in lumbar and tail dorsal root ganglion (DRG) neurons at progressive stages of bullfrog tadpole metamorphosis. Accumulation of [35S]methionine‐labeled protein proximal to a lumbar peripheral nerve ligature (at a fixed distance from the DRG) increased as tadpoles advanced from premetamorphosis through prometamorphosis to metamorphic climax. The rate of increase was steeper when expressed as a percentage of protein synthesized in the neurons of origin than when expressed as a percentage of total DRG protein synthesis. Further, the increase was not secondary to a rise in protein synthesis. In contrast, fast axonal transport decreased in DRG neurons of the tail at the onset of metamorphic climax, when tail resorption is initiated. The stage‐related increase in protein transport in lumbar nerves is due, at least in part, to an increased rate of transport. As determined from optically detected anterograde organelles in individual lumbar nerve axons, an approximate doubling of the fast transport rate occurred between the premetamorphic stage and metamorphic climax. In addition, the rates of organelle transport in lumbar axons of adult bullfrogs were significantly greater than in corresponding axons of tadpoles at metamorphic climax, further suggesting that organelle velocity is a developmentally regulated parameter of fast axonal transport.
Development of vestibular function: biochemical, morphological and electronystagmographical assessment in the rat
Authors: Meza Graciela , Acuña Dora , Gutiérrez Angel , Merchan Jaime M. , Rueda Joaquín 
Published: July 2002

AbstractGlutamate decarboxylase and choline acetyltransferase were measured in homogenated ampullar cristae of rats during development from postnatal day 13 to 60 to determine changes in levels of these enzymes during early postnatal development. Afferent and efferent innervation of the hair cells of the developing cristae were studied using electron microscopy. In parallel, groups of rats, postrotatory nystagmus were used to assess the development of semicircular canal function during the same time interval. The level of glutamate decarboxylase was high on postnatal day 15 and did not change notably over the remaining days to day 60. Activity of choline acetyltransferase was nearly absent at day 15, but reached levels seen in mature animals by day 17, and remained almost unchanged thereafter. In contrast, as revealed by electronmicroscopy, afferent and efferent innervation appeared to be mature by day 8. Postrotatory nystagmus presented the adult‐like features from day 19 onward. According to these results, a role for glutamate decarboxylase in afferent transmission is suggested by the parallel development of levels of glutamate decarboxylase and afferent innervation of the ampullary cristae. The finding of a similar time course of development of choline acetyltransferase levels and postrotatory nystagmus suggests that a cholinergic efferent innervation is involved in the onset of vestibular‐ocular function.
Postnatal development of glycosidases and gangliosides in the rat central nervous system
Authors: Prasad Vidudala V.T S. 
Published: July 2002

AbstractThe developmental profiles of sialidase, β‐galactosidase, β‐hexosaminidase and β‐glucosidase were compared to those of the gangliosides in rat brain and spinal cord. The glucosidase activities (enzyme units/g wet tissue), except β‐galactosidases, were found to be higher in brain than spinal cord, in adult rats. Among the hydrolases, β‐hexosaminidase showed a higher level of activity in both brain and spinal cord. In brain, the hydrolases, except β‐glucosidase, followed a similar developmental pattern, showing an increase from birth to 21 days, and then decreased to adult values by day 90. In the spinal cord, sialidase, β‐galactosidase, pH 3.1, and β‐hexosaminidase activities increased from birth to 21 days, reaching peak values. These activities then declined to adult values by 90 days of age. However, β‐galactosidase, pH 4.5, and β‐glucosidase activities showed a peak at day 14. Brain total ganglioside concentration (μg N‐acetylneuraminic acid/g tissue) increased slowly between birth and 7 days of age, followed by a rapid phase of increase to attain a peak value by day 21. The concentration of total gangliosides in the spinal cord is less when compared to the brain. The proportions of individual gangliosides in the central nervous system also varied during development. The rapid phase of increase in enzyme activities between 0–7 and 14–21 days and a decrease thereafter is consistent with the turnover rate of gangliosides, which in rat brain is reported to be highest between 10 and 20 days.
Effects of cocaine on the rat cerebral commissure
Authors: Ojima Kazuya , Abiru Hitoshi , Fukui Yuko 
Published: July 2002

AbstractWe investigated the effects of cocaine on the corpus callosum, the nerve fibre bundle that connects the bilateral cerebral hemispheres. Our experiments in rats confirmed that, in the control group, the mid‐sagittal area of the corpus callosum in the adult male was significantly larger than this area in the female. Early postnatal exposure to cocaine abolished this sexual dimorphism, that is, cocaine‐treated males had a significantly smaller callosal area than the control males. Cocaine induced no significant changes in the weight of the body or brain. There were no significant sex differences in the midline sagittal area of the anterior commissure, and no apparent effects of cocaine exposure were determined in this structure. These findings suggest that early postnatal exposure to cocaine abolishes the sexual differentiation of the corpus callosum in male rats.
Emotional family atmosphere and relapse: investigations on the role of relapse definition, duration of illness and resignation of relatives
Authors: Schulze Mönking H , Buchkremer G 
Published: July 2002

SummaryAn analysis of existing studies on the expressed emotion (EE) concept shows that the predictive validity of the EE index depends on the definition of relapse. Whilst symptomatic relapses are recorded in patients from high-EE families, about 3 times as often as in patients from low-EE families, a comparison of hospitalization rates reveals a difference of only approximately 1.5 times. In the Münster Families Study, a prospective intervention study to evaluate the therapeutic impact of relatives' groups, the predictive value of the familial emotional atmosphere could be measured in a prospective design. Ninety-nine DSMIII Schizophrenics, 72 male, 27 female, mean age 27 (SD 6.6), mean duration of illness 5.5 (SD 4.3) were followed up. In the first eighteen months patients from high-EE- families had a risk of rehospitalisation approximately 1.5 (p < 0.05). Further analysis showed that relapse rates among patients from high-EE and low-EE families were roughly the same for patients with a duration of illness of less than 4.5 years but were significantly different after a longer duration (p = 0.019). Besides a high EE rating, resignation of relatives was also a significant (p = 0.000) predictor of rehospitalisation for high and — even more — low EE families. Possible causes of these findings and therapeutic consequences are discussed.