bluuebunny/crossref_metadata_2025_split huggingface dataset:
Deciphering Heavy Metal Contamination Zones in Parts of Nalgonda District, Telangana
Authors: Purushotham Dasu , Dharavath Linga , Mishra Sibasish , Kavitha Sunkari , Vinod G. Naga 
Published: May 2017

ABSTRACT
The study area is very important in terms of anthropogenic activity like rapid industrial, urban development, pesticides, pharmacy, granite polishing and agro based industries. Soils represent an excellent media to monitor heavy metal pollution. The results of soil samples analyzed in the present work using XRF reveal anomalous heavy metal and major oxide concentrations. The geogenic and anthropogenic activities for a long period in the study area are responsible for the anomalous heavy metal pollutants. Hence, this work is of immense societal benefit in terms of prevailing human health hazards in the study area with a direct relevance to such industrially populated regions elsewhere. Soil samples collected from study area were analyzed for heavy metals (As, Ba, Cr, Cu, Ni, Co, Mo, Pb, Rb, Sr, V, Y, Zn and Zr and major oxides (SiO2, Al2O3, Fe2O3, MnO, MgO, CaO, Na2O, K2O, TiO2, and P2O5) using Philips PW 2440 X-ray Fluorescence Spectrometer (XRF). The minimum 0.08 for molybdenum and maximum 21.99 enrichment factor for arsenic is observed. The minimum -2.5 and maximum 17.97 geoaccumulation index values is observed for barium and molybdenum. The minimum 0.07 and maximum 4.3 contamination factors is observed for molybdenum and lead. High contamination degree 19.21 for SMP-1 and least 7.8 for SMP-12 is observed. The minimum 0.41 and maximum 0.95 pollution load index is observed for SMP-12 and SMP-20. Factor analysis results shows that, three factors emerged as significant contributors to the soil quality is about seventy six percent for heavy metals and sixty eight percent for major oxides. The spatial variation maps deciphering heavy metal concentration of both natural and anthropogenic origin by three zones i.e. low, moderate and high of the study area based on environment using Arc-GIS.
Geochemical Characterization of Source Rock from the North Bank Area, Upper Assam Basin
Authors: Devi Archana , Boruah Shivananda , Gilfellon G. B. 
Published: May 2017

ABSTRACT
The study area is confined to a part of upper Assam basin, north of river Brahmaputra (north bank). Seven exploratory wells have been drilled in this part of the basin in order to probe the hydrocarbon prospects of the area. The exploratory efforts did not indicate significant hydrocarbon prospects in the north bank. Since the presence of source rock is an important component of the petroleum system, a detailed systematic study of source rock potential was carried out by analysing known source rock intervals in these seven wells. In the present study, Rock-Eval pyrolysis combined with specific geochemical analyses like GC and TLC-FID has been used to characterise the source rocks, their distribution and thermal maturity of the organic matter. The source rocks in the area show mainly Type III, land-plant derived organic matter along with some Type II organic matter. They are predominantly gas prone in nature, although mixed and oil-prone source rocks are occasionally present. Although source rock intervals have been identified in the Langpar, Sylhet limestone and Kopili formations, the Barail Group and the Tipam sandstone Formation, the bulk of the source rock occurs within the Kopili Formation. Geochemical analyses of the cores indicate oil signatures at certain depths, although no commercial oil was discovered. The hydrocarbon generation potential of these source rocks are constrained by low maturity at the presently drilled depths.
Juncture of Erosion, Land Use/Cover Status and Hazardous Geomorphic Processes in Central Lesser Himalaya
Authors: Pande Anita 
Published: May 2017

ABSTRACT
The high relief energy of the central lesser Himalayan terrain of Jaigan watershed would indicate to favour the occurrence of highly active geomorphic processes. Present investigation was based on two watersheds with different juncture of erosion, viz. Ghuniyoli and Santri watershed under youthful and equilibrium state of erosion respectively. The juncture of erosion of these watersheds was assessed under the impact of altitudinal variation as well as the erosion environment of these studied watersheds was evaluated under different land use/cover status. However, the present morphodynamics of Ghuniyoli and Santri watersheds can be considered for the detailed investigation of physical factors including geological situation as well as the cultural factors. The litho-structural set-up completely altered the sequential development of landform. The landscape under the resistant strata had undergone equilibrium (early mature) juncture while vulnerable lithology determined youthful (late) juncture. This occurred due to the active tectonics of the watershed. The existence of thrust along with contact zone of two lithologies created more erosion prone conditions in resistant strata. Land use/cover status when compared with juncture of erosion for the entire watershed also followed the same juncture of erosion. Finally it was observed that the juncture of erosion was reflected in hazardous geomorphic processes too. Landform under youthful juncture caused significant hazardous geomorphic processes in comparison to landform under mature juncture.
Early Radiographic and Tomographic Manifestations of Legionnaires' Disease
Authors: Poirier Rémi , Rodrigue Jean , Villeneuve Jasmin , Lacasse Yves 
Published: May 2017

Purpose Legionnaires' disease (LD) may occur sporadically or in the course of outbreaks, where the typical radiological manifestations of the disease may better be delineated. We took advantage of a rare community-based epidemic of LD (181 patients) that occurred in 2012 in Quebec City, Canada, to describe the radiographic features of LD and compare the its tomographic presentation with that of community-acquired pneumonia caused by common bacteria other than Legionella pneumophila. Methods From the 181 individuals affected in the outbreak, we obtained the chest radiographs of 159 individuals (mean 63 ± 15 years of age) for detailed analysis; 33 patients had a computed tomography (CT) scan performed during the course of their illness. In a case-control study, we compared the CT scans of patients with LD with those of patients who had received a diagnosis of community-acquired pneumonia caused by a pathogen other than Legionella and confirmed by chest CT scan. Results Overall, LD most often presented as an airspace consolidation involving 1 of the lower lobes. Pleural effusion and mediastinal adenopathies were apparent only in a minority, whereas no pneumothorax or cavitation was noted. We did not find any significant difference in chest CT scan findings in patients with LD vs those with community-acquired pneumonia from other bacterial origin. No radiological finding was clearly associated with an increased risk of intensive care unit admission or mortality. Conclusions The early radiographic and tomographic manifestations of LD are nonspecific and similar to those found in community-acquired pneumonia from other bacterial origin.
Subjective processes surgical treatment in patients with stages of the disease hemorrhoidal
Authors: Freitas Magno Otávio Salgado de , Santos Jaciara Aparecida Dias , Sampaio Cristina Andrade 
Published: May 2017

Abstract
Introduction Hemorrhoidal disease afflicts 4.4% of the world population, being the most common anal disorder. Surgical treatment is used for about 5–10% of cases where conservative procedures have not worked.
Objective To understand the trajectory and perception of individuals submitted to surgical treatment of hemorrhoidal disease.
Methods This is a descriptive study with a qualitative approach, which emphasized Cartography as the main method in the analysis of the results. Data were produced through individual interviews recorded and transcribed in full, from March to June 2015, in a Polyclinic and in a public hospital in the municipality of Montes Claros-MG. Twelve interviews were carried out.
Results The results evidenced the existence of processes of subjectivization that, through affectations, cause individuals to demonstrate a transcendent thought, exemplified by the sensation of a self-knowledge of the disease, including correlating it with possible hereditary, behavioral and alimentary causes. There was an escalation in the various levels of health care, standardized by the public system, sometimes revealing a molar thought, preventing the occurrence of an event, reducing power and failing to achieve a plan of immanence with the complete resolution of the problem. The hard lines, evidenced by a delay in obtaining a treatment thanks for fear and shame, favored self-medication, with a worsening of symptoms.
Conclusion It was noted that there were obstacles in all levels of the SUS that made it difficult to reach the surgical treatment, but all patients were considered with surgery and with the postoperative period.
Smooth foliations by circles of with unbounded periods and nonlinearizable multicentres
Authors: VILLARINI MASSIMO 
Published: May 2017

We give an example of a$C^{\infty }$vector field$X$, defined in a neighbourhood$U$of$0\in \mathbb{R}^{8}$, such that$U-\{0\}$is foliated by closed integral curves of$X$, the differential$DX(0)$at$0$defines a one-parameter group of non-degenerate rotations and$X$isnotorbitally equivalent to its linearization. Such a vector field$X$has the first integral$I(x)=\Vert x\Vert ^{2}$, and its main feature is that its period function islocally unboundednear the stationary point. This proves in the$C^{\infty }$category that the classical Poincaré centre theorem, true for planar non-degenerate centres, is not generalizable to multicentres. Such an example is obtained through a careful study and a suitable modification of a celebrated example by Sullivan [A counterexample to the periodic orbit conjecture.Publ. Math. Inst. Hautes Études Sci. 46(1976), 5–14], by blowing up the stationary point at the origin and through the construction of a smooth one-parameter family of foliations by circles of$S^{7}$whose orbits have unbounded lengths (equivalently, unbounded periods) for each value of the parameter and which smoothly converges to the Hopf fibration$S^{1}{\hookrightarrow}S^{7}\rightarrow \mathbb{CP}^{3}$.
Vitamin D levels during pregnancy and associations with birth weight and body composition of the newborn: a longitudinal multiethnic population-based study
Authors: Eggemoen Åse R. , Jenum Anne K. , Mdala Ibrahimu , Knutsen Kirsten V. , Lagerløv Per , Sletner Line 
Published: May 2017

AbstractWe investigated associations between serum 25-hydroxyvitamin D (25(OH)D) in pregnancy and birth weight and other neonatal anthropometric measures. The present study was a population-based, multiethnic cohort study of 719 pregnant women (59 % ethnic minorities) in Oslo, Norway, delivering a singleton neonate at term and with birth weight measurements. In a representative sample, anthropometric measurements were taken. Maternal 25(OH)D was measured at gestational weeks 15 and 28. Women with 25(OH)D <37 nmol/l were recommended vitamin D3 supplementation. Separate linear regression analyses were performed to model the associations between 25(OH)D and each of the outcomes: birth weight, crown–heel length, head circumference, abdominal circumference, sum of skinfolds, mid-upper arm circumference and ponderal index. In early pregnancy, 51 % of the women were vitamin D deficient (25(OH)D<50 nmol/l). In univariate analyses and in models adjusting for maternal age, parity, education, prepregnancy BMI, season, gestational age and neonate sex, maternal 25(OH)D was significantly associated with birth weight, head circumference, abdominal circumference and ponderal index (P<0·05 for all), when used as a continuous variable and categorised (consistently low, consistently high, increasing and decreasing level). However, after adjusting for ethnicity, 25(OH)D was no longer associated with any of the outcomes. Sex-specific associations for abdominal circumference and sum of skinfolds were found (Pfor interaction<0·05). In conclusion, in a multiethnic cohort of pregnant women with high prevalence of vitamin D deficiency, we found no independent relation between maternal vitamin D levels and any of the neonatal anthropometric measures, and the strong association between ethnicity and neonatal outcomes was not affected by maternal vitamin D status.
Neurocognitive impairment in deficit and non-deficit schizophrenia: a meta-analysis
Authors: Bora E. , Binnur Akdede B. , Alptekin K. 
Published: May 2017

BackgroundMost studies suggested that patients with deficit schizophrenia have more severe impairment compared with patients with non-deficit schizophrenia. However, it is not clear whether deficit and non-deficit schizophrenia are associated with differential neurocognitive profiles.MethodsThe aim of this meta-analytic review was to compare cognitive performances of deficit and non-deficit patients with each other and with healthy controls. In the current meta-analysis, differences in cognitive abilities between 897 deficit and 1636 non-deficit patients with schizophrenia were examined. Cognitive performances of 899 healthy controls were also compared with 350 patients with deficit and 592 non-deficit schizophrenia.ResultsBoth deficit (d= 1.04–1.53) and non-deficit (d= 0.68–1.19) schizophrenia were associated with significant deficits in all cognitive domains. Deficit patients underperformed non-deficit patients in all cognitive domains (d= 0.24–0.84) and individual tasks (d= 0.39–0.93). The relationship between deficit syndrome and impairment in olfaction, social cognition, verbal fluency, and speed-based cognitive tasks were relatively stronger.ConclusionsOur findings suggest that there is consistent evidence for a significant relationship between deficit syndrome and more severe cognitive impairment in schizophrenia.
A dynamic design approach using the Kalman filter for uncertainty management
Authors: Keshavarzi Elham , McIntire Matthew , Hoyle Christopher 
Published: May 2017

AbstractIt is desirable for complex engineered systems to beresilientto various sources of uncertainty throughout their life cycle. Such systems are high in cost and complexity, and often incorporate highly sophisticated materials, components, design, and other technologies. There are many uncertainties such systems will face throughout their life cycles due to changes in internal and external conditions, orstates of interest, to the designer, such as technology readiness, market conditions, or system health. These states of interest affect the success of the system design with respect to the main objectives and application of the system, and are generally uncertain over the life cycle of the system. To address such uncertainties, we propose a resilient design approach for engineering systems. We utilize a Kalman filter approach to model the uncertain future states of interest. Then, based upon the modeled states, the optimal change in the design of the system is achieved to respond to the new states. This resilient method is applicable in systems when the ability to change is embedded in the system design. A design framework is proposed encompassing a set of definitions, metrics, and methodologies. A case study of a communication satellite system is presented to illustrate the features of the approach.
The prediction of multiaxial fatigue probabilistic stress–life curve by using fuzzy theory
Authors: Li Bochuan , Jiang Chao , Han Xu , Li Yuan 
Published: May 2017

AbstractThe fuzziness of the traditional multiaxial fatigue prediction model is discussed and the fuzzy theory is applied into fatigue reliability analysis. The fuzzy linear regression analysis method is used to determine the fuzzy coefficients in the multiaxial stress–life equation under a small sample condition, and the corresponding multiaxial fatigue probabilistic stress–life curve is calculated with different confidence levels.
Further Insights Into the German Version of the Multidimensional	Assessment of Interoceptive Awareness (MAIA)
Authors: Reis Dorota 
Published: May 2017

Abstract. Interoception is defined as an iterative process that refers to receiving, accessing, appraising, and responding to body sensations. Recently, following an extensive process of development, Mehling and colleagues (2012) proposed a new instrument, the Multidimensional Assessment of Interoceptive Awareness (MAIA), which captures these different aspects of interoception with eight subscales. The aim of this study was to reexamine the dimensionality of the MAIA by applying maximum likelihood confirmatory factor analysis (ML-CFA), exploratory structural equation modeling (ESEM), and Bayesian structural equation modeling (BSEM). ML-CFA, ESEM, and BSEM were examined in a sample of 320 German adults. ML-CFA showed a poor fit to the data. ESEM yielded a better fit and contained numerous significant cross-loadings, of which one was substantial (≥ .30). The BSEM model with approximate zero informative priors yielded an excellent fit and confirmed the substantial cross-loading found in ESEM. The study demonstrates that ESEM and BSEM are flexible techniques that can be used to improve our understanding of multidimensional constructs. In addition, BSEM can be seen as less exploratory than ESEM and it might also be used to overcome potential limitations of ESEM with regard to more complex models relative to the sample size.
Factor Structure of the Dyadic Adjustment Scale
Authors: Vajda Dóra , Thege Barna Konkolÿ , Rózsa Sándor 
Published: May 2017

Abstract. The Dyadic Adjustment Scale (DAS) is one of the most widely used instruments for measuring relationship quality. Considering the discrepancies across studies regarding the relationship of the underlying constructs of the DAS, the aim of the present study was to examine the factor structure of the scale by applying bifactor models using confirmatory factor analytic (CFA) and exploratory structural equation modeling (ESEM) approaches. The sample consisted of 483 couples recruited in Hungary. The analysis revealed that the bifactor-ESEM yielded the best fit to the data (CFI = .90, RMSEA = .05, WRMR = .88). Further, strict invariance between the sexes was observed for this model. Omega hierarchical coefficients indicated outstanding reliability for the general factor (.86), acceptable estimates for the Dyadic Consensus (.60) and Cohesion (.57) subdomains, but poor reliability for the Dyadic Satisfaction (.22) and Affectional Expression (.36) factors; suggesting that the individual interpretation of these latter two subconstructs must be made with caution.
Diptoindonesin G promotes ERK-mediated nuclear translocation of p-STAT1 (Ser727) and cell differentiation in AML cells
Authors: Gao Jian , Fan Minmin , Xiang Gang , Wang Jujuan , Zhang Xiong , Guo Wenjie , Wu Xuefeng , Sun Yang , Gu Yanhong , Ge Huiming , Tan Renxiang , Qiu Hongxia , Shen Yan , Xu Qiang 
Published: May 2017

AbstractExploration of a new differentiation therapy that extends the range of differentiation for treating acute myeloid leukemia (AML) is attractive to researchers and clinicians. Here we report that diptoindonesin G (Dip G), a natural resveratrol aneuploid, exerts antiproliferative activity by inducing G2/M phase arrest and cell differentiation in AML cell lines and primary AML cells. Gene-profiling experiments showed that treating human leukemia HL-60 cells with Dip G was associated with a remarkable upregulation of STAT1 target gene expression, including IFIT3 and CXCL10. Mechanistically, Dip G activated ERK, which caused phosphorylation of STAT1 at Ser727 and selectively enhanced the interaction of p-STAT1 (Ser727) and p-ERK, further promoting their nuclear translocation. The nuclear translocation of p-STAT1 and p-ERK enhanced the transactivation of STAT1-targeted genes in AML cells. Furthermore, in vivo treatment of HL-60 xenografts demonstrated that Dip G significantly inhibited tumor growth and reduced tumor weight by inducing cell differentiation. Taken together, these results shed light on an essential role for ERK-mediated nuclear translocation of p-STAT1 (Ser727) and its full transcriptional activity in Dip G-induced differentiation of AML cells. Furthermore, these results demonstrate that Dip G could be used as a differentiation-inducing agent for AML therapy, particularly for non-acute promyelocytic leukemia therapy.
Coulomb engineering of the bandgap and excitons in two-dimensional materials
Authors: Raja Archana , Chaves Andrey , Yu Jaeeun , Arefe Ghidewon , Hill Heather M. , Rigosi Albert F. , Berkelbach Timothy C. , Nagler Philipp , Schüller Christian , Korn Tobias , Nuckolls Colin , Hone James , Brus Louis E. , Heinz Tony F. , Reichman David R. , Chernikov Alexey 
Published: May 2017

AbstractThe ability to control the size of the electronic bandgap is an integral part of solid-state technology. Atomically thin two-dimensional crystals offer a new approach for tuning the energies of the electronic states based on the unusual strength of the Coulomb interaction in these materials and its environmental sensitivity. Here, we show that by engineering the surrounding dielectric environment, one can tune the electronic bandgap and the exciton binding energy in monolayers of WS2 and WSe2 by hundreds of meV. We exploit this behaviour to present an in-plane dielectric heterostructure with a spatially dependent bandgap, as an initial step towards the creation of diverse lateral junctions with nanoscale resolution.
Confocal imaging of single BaTiO3 nanoparticles by two-photon photothermal microscopy
Authors: Bijeesh M. M. , Shakhi P. K. , Arunkarthick S. , Varier Geetha K. , Nandakumar P. 
Published: May 2017

AbstractWe report on the development of a nonlinear optical microscopic technique based on two-photon absorption induced photothermal effect capable of detecting individual nonfluorescent nanoparticles with high sensitivity. The method which is inherently confocal makes use of near infrared excitation at high repetition rates and would be of interest in deep tissue imaging. We demonstrate the applicability of the technique by imaging single BaTiO3 nanoparticles, a potential biomolecular label having high photostability, in a scattering environment at fast time scales with a pixel dwell time of 80 μs.
Reentrant Resistive Behavior and Dimensional Crossover in Disordered Superconducting TiN Films
Authors: Postolova Svetlana V. , Mironov Alexey Yu. , Baklanov Mikhail R. , Vinokur Valerii M. , Baturina Tatyana I. 
Published: May 2017

AbstractA reentrant temperature dependence of the normal state resistance often referred to as the N-shaped temperature dependence, is omnipresent in disordered superconductors – ranging from high-temperature cuprates to ultrathin superconducting films – that experience superconductor-to-insulator transition. Yet, despite the ubiquity of this phenomenon its origin still remains a subject of debate. Here we investigate strongly disordered superconducting TiN films and demonstrate universality of the reentrant behavior. We offer a quantitative description of the N-shaped resistance curve. We show that upon cooling down the resistance first decreases linearly with temperature and then passes through the minimum that marks the 3D–2D crossover in the system. In the 2D temperature range the resistance first grows with decreasing temperature due to quantum contributions and eventually drops to zero as the system falls into a superconducting state. Our findings demonstrate the prime importance of disorder in dimensional crossover effects.