bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spatial evaluation of environmental noise with the use of participatory sensing system in Singapore
Authors: Diong Huey Ting , Neitzel Richard , Martin William Hal 
Published: August 2021

Abstract
Existing studies in Singapore on environmental noise are scarce and limited in scale due to the need for expensive equipment and sophisticated modelling expertise. This study presents the approach of using participatory sensing and mobile phones to monitor environmental sound levels around Singapore. iPhones running the AmbiCiti application was adopted to sample equivalent continuous 30-second average outdoor sound levels (LAeq

,30

sec). The aggregated mean of each region was evaluated and the spatial distribution of environmental noise was analysed using noise maps generated from the measurement data. A total of 18,768 LAeq

,30

sec
measurements were collected over ten weeks. About 93.6% of the daytime measurements (07:00 – 19:00) exceeded the WHO recommended level of 55 dBA to minimise negative non-auditory health effects due to noise. The results of this study suggest that the population of Singapore is potentially at risk of adverse non-auditory health effects and, to a lesser extent, hearing loss due to community noise levels. However, the measurements exceeding 70 dBA were frequent enough to warrant concern about contributions to the cumulative lifetime sound exposure contributing to hearing loss. The work also demonstrates that sound maps of an area can be efficiently generated using calibrated applications running on smart phones.
Composite paper from an agricultural waste of bagasse sugarcane and pineapple leaf fibre: a novel random and multilayer hybrid fibre reinforced composite paper
Authors: Salleh Sarah , A. Majid Rohah , Yahya Wira Jazair , Abd Kadir Hasannuddin , Ezzat Chan Arif Fahim , Munthoub Dayangku Intan , Rusman Rafidah 
Published: August 2021

Abstract
Bagasse sugarcane (BSC) has low fibre strength due to low cellulose content. Hence, by adding a strong secondary fibre that is high in cellulose such as pineapple leaf fibre (PALF), the fibre strength of the system can be improved. High portion of PALF decreased the composite paper performance because the high composition of PALF tends to produce flocs and agglomerates fibres. The arrangement of the fibres in composite paper should be improved so that this agglomerate’s effect could be overcome. A novel multilayer hybrid fibre composite was used. BSC/PALF with several hybrid ratios was studied in terms of the mechanical and moisture properties of the produced paper sheet and the results showed that multilayer hybrid composite paper produced higher in hybrid composite paper’s properties compared with random hybrid composite paper. The colour of multilayer hybrid fibre composite paper resembled the natural bright colour of BSC and the multilayer hybrid fibre composite paper also shown a slightly low weight loss percentage compared with the random hybrid fibre composite paper after 60 days of soil burial test. As a conclusion, multilayer hybrid fibre composite produced the stronger interfibre bonding and overcome the agglomerate’s effect between BSC/PALF compared with random hybrid fibre composite.
Effects of talc, kaolin and calcium carbonate as fillers in biopolymer packaging materials
Authors: Helanto Karoliina , Talja Riku , Rojas Orlando J. 
Published: August 2021

AbstractWe compared the performance of bio-based and biodegradable polymers for packaging applications. Cost-effective inorganic fillers (talc, kaolin and calcium carbonate) were first melt-compounded with polylactic acid (PLA), poly(butylene adipate-co-terephthalate) (PBAT) and poly(hydroxy butyrate-co-valerate) (PHBV). Following this, injection- and compression-molded specimens were produced to test the effect of filler loading (0–30 wt%) in relation to the morphological, thermal, mechanical and barrier properties of the composites. All the fillers were homogeneously dispersed in the polymer matrices and suitable polymer–filler adhesion was observed for talc and kaolin. The elastic modulus increased at the expense of a reduced tensile and elongation. The most significant improvements in water vapor and oxygen barrier properties were achieved with talc in PLA, PBAT and PHBV films. Overall, the results point to the promise of the introduced compositions for food packaging materials.
Comparative studies on the adsorption of various radioactive nuclides from waste aqueous solutions on graphene oxide, inorganic and organic ion exchangers
Authors: El-Sweify Fatma H. , Mohamed Nora A. , Abd El-Monem Doaa A. , Ramadan Hala E. , Hegazy Wafaa S. 
Published: August 2021

Abstract
Adsorption of the radionuclides 141Ce, 140La, 140Ba, 137+134Cs, 131I, 125Sb, 103Ru, 95Nb and 95Zr are studied on graphene oxide from waste aqueous solution samples and their adsorption behaviors are compared to that on the inorganic ion exchanger Ceric tungstate as well as on the strong acidic cation exchanger Dowex-50X8 H+ form, the chelating resin Chelex-100 Na+ form and the strong basic anion exchanger AG-1X8 Cl− form. The waste samples are dilute aqueous solutions resulting from previous work. These solutions contained neither oxidizing nor reducing agents, consequently, it is expected that these radionuclides are existing in their most stable oxidation states, i.e. Ce(III), La(III), Ba(II), Cs(I), Ru(III) & (IV), Sb(III) & (V), Nb(V) and Zr(IV). The adsorption is studied under static conditions for all these radioactive nuclides in the presence of each other. Gamma radiometric analysis is carried out for these radionuclides. Effect of some factors on the adsorption is studied such as pH, graphene oxide particle sizes, contact time, temperature and other parameters. Complete removal of some radionuclides is achieved from these waste solutions by adsorption on graphene oxide. Some separation alternatives for some of these radionuclides are also achieved.
Low variability in the underlying cellular landscape adversely affects the performance of interaction-based approaches for conducting cell-specific analyses of DNA methylation in bulk samples
Authors: Meier Richard , Nissen Emily , Koestler Devin C. 
Published: August 2021

Abstract
Statistical methods that allow for cell type specific DNA methylation (DNAm) analyses based on bulk-tissue methylation data have great potential to improve our understanding of human disease and have created unprecedented opportunities for new insights using the wealth of publicly available bulk-tissue methylation data. These methodologies involve incorporating interaction terms formed between the phenotypes/exposures of interest and proportions of the cell types underlying the bulk-tissue sample used for DNAm profiling. Despite growing interest in such “interaction-based” methods, there has been no comprehensive assessment how variability in the cellular landscape across study samples affects their performance. To answer this question, we used numerous publicly available whole-blood DNAm data sets along with extensive simulation studies and evaluated the performance of interaction-based approaches in detecting cell-specific methylation effects. Our results show that low cell proportion variability results in large estimation error and low statistical power for detecting cell-specific effects of DNAm. Further, we identified that many studies targeting methylation profiling in whole-blood may be at risk to be underpowered due to low variability in the cellular landscape across study samples. Finally, we discuss guidelines for researchers seeking to conduct studies utilizing interaction-based approaches to help ensure that their studies are adequately powered.
Examining resting-state functional connectivity in key hubs of the default mode network in chronic low back pain
Authors: Ng Sin Ki , Urquhart Donna M. , Fitzgerald Paul B. , Cicuttini Flavia M. , Kirkovski Melissa , Maller Jerome J. , Enticott Peter G. , Rossell Susan L. , Fitzgibbon Bernadette M. 
Published: August 2021

Abstract

Objectives
Changes in brain connectivity have been observed within the default mode network (DMN) in chronic low back pain (CLBP), however the extent of these disruptions and how they may be related to CLBP requires further examination. While studies using seed-based analysis have found disrupted functional connectivity in the medial prefrontal cortex (mPFC), a major hub of the DMN, limited studies have investigated other equally important hubs, such as the posterior cingulate cortex (PCC) in CLBP.

Methods
This preliminary study comprised 12 individuals with CLBP and 12 healthy controls who completed a resting-state functional magnetic resonance imaging (fMRI) scan. The mPFC and PCC were used as seeds to assess functional connectivity.

Results
Both groups displayed similar patterns of DMN connectivity, however group comparisons showed that CLBP group had reduced connectivity between the PCC and angular gyrus compared to healthy controls. An exploratory analysis examined whether the alterations observed in mPFC and PCC connectivity were related to pain catastrophizing in CLBP, but no significant associations were observed.

Conclusions
These results may suggest alterations in the PCC are apparent in CLBP, however, the impact and functional role of these disruptions require further investigation.
Testing for exuberance in house prices using data sampled at different frequencies
Authors: Otero Jesús , Panagiotidis Theodore , Papapanagiotou Georgios 
Published: August 2021

AbstractWe undertake Monte Carlo simulation experiments to examine the effect of changing the frequency of observations and the data span on the Phillips, P. C. B., S. Shi, and J. Yu. 2015. “Testing for Multiple Bubbles: Historical Episodes of Exuberance and Collapse in the S&P 500.”International Economic Review56 (4): 1043–78 generalised supremum ADF (GSADF) test for explosive behaviour via Monte Carlo simulations. We find that when a series is characterised by multiple bubbles (periodically collapsing), decreasing the frequency of observations is associated with profound power losses for the test. We illustrate the effects of temporal aggregation by examining two real house price data bases, namely the S&P Case–Shiller real house prices and the international real house price indices available at the Federal Reserve Bank of Dallas.
Design and validation of a two-dimensional variable geometry inlet
Authors: Yuan Huacheng , Wang Yunfei , Liu Jun , Hua Zhengxu 
Published: August 2021

Abstract
The design of a two-dimensional variable geometry inlet which applied to a tandem type turbine-based combined cycle (TBCC) propulsion system was investigated in the present paper through three-dimensional simulations and wind tunnel tests. The operation Mach number range was between 0 and 3. A multi-ramp geometry scheme was adopted to achieve acceptable performance at different inflow Mach number. The first ramp angle was fixed whilst the angles of the second and the third ramps were variable at different inflow Mach numbers. The Mach numbers at throat region were maintained between 1.3 and 1.5 at different inflow Mach numbers according to this variable geometry scheme. A fixed geometry rectangular-to-circular shape diffuser was adopted to improve aerodynamic performance of the inlet. Three-dimensional numerical simulations were carried out between Ma1.5 and Ma3.0. The results indicated that good aerodynamic performance can be achieved at different inflow speed. At the design point, total pressure recovery of the inlet was 0.66 at critical condition. Wind tunnel validation experiment tests were conducted at Ma2.0, showing the movement of terminal shock wave from downstream to upstream as the back pressure increased. The inlet operated at supercritical, critical and subsonic conditions at different back pressure.
Two is too much…in the phonology!
Authors: Zimmermann Eva 
Published: August 2021

AbstractA purely phonological account of reduplication based on the affixation of empty prosodic nodes predicts the attested typology of multiple reduplication. Languages that can combine more than one reduplication-triggering morpheme in a word differ in (1) whether all reduplicants surface faithfully, (2) whether they systematically avoid adjacent multiple reduplicants, or (3) whether one of the reduplicants is smaller than expected if another reduplicant is adjacent in multiple reduplication contexts. Morphological accounts of reduplication not only violate the modularity between phonology and morphology, they also fail to predict this attested typology.
Canstatin represses glioma growth by inhibiting formation of VM-like structures
Authors: Ma Yuqiang , Wu Tao , Zhou Houjie , He Guilu , Li Yifei , Wang Bocheng , Guo Qiang , Chen Baodong , Li Weiping 
Published: August 2021

Abstract
Vasculogenic mimicry (VM) is different from classical tumor angiogenesis and does not depend on endothelial cells. VM is closely related to the prognosis of various cancers. Canstatin was first identified as an endogenous angiogenesis inhibitor. In the present study, the inhibitory effect of canstatin on VM formation was evaluated. Human glioblastoma cell lines U87 and U251 were letivirally transduced to overexpress canstatin gene or GFP as control. In vitro assays showed that canstatin overexpression reduced the tube formation of U87 and U251 cells in Matrigel. A xenograft glioma model was created by subcutaneous injection of lentivirally modified U87 cells into nude mice. The results of in vivo experiments showed that canstatin gene introduction inhibited the growth of glioma xenografts. In tumor xenografts overexpressing canstatin, U87-mediated formation of VM-like structures and VM-related VEGF (vascular endothelial growth factor) expression were remarkably reduced. Canstatin overexpression also decreased the phosphorylation of Akt and reduced the expression of Survivin in vitro. In addition, HIF-1α production and MMP-2 secretion were decreased by canstatin overexpression. Therefore, these results suggested a protective role of canstatin during VM-like structure formation of glioma probably via inhibiting signaling pathways inducing vasculogenic mimicry.
Laparoscopic cholecystectomy in patients with liver cirrhosis: review of intraoperative measures and recommendations
Authors: Abdelrahman Tamer M. 
Published: August 2021

AbstractSymptomatic biliary stones are related with higher morbidity and mortality rates in patients with liver cirrhosis, especially when patients undergo surgery. The difficulty of cholecystectomy is worsened by liver cirrhosis, especially in patients with extensive liver fibrosis and portal hypertension.Laparoscopic cholecystectomy can be performed safely in selected patients with cirrhosis. However, it can be challenging in many aspects and poses a greater degree of difficulty and thus should be performed by experienced surgical teams, who follow the recommendations and take in mined the special precautions which requested to increase safety of the operation and avoid or reduce the morbidity and mortality , and also who able to tackle the more frequent intraoperative incidents or complications.In this review, we focus on of the technical difficulties and intraoperative recommendations that could be used to approach laparoscopic cholecystectomy in this patient population (trocar placement, intraabdominal pressure, visualization, gallbladder dissection, adjunct for hemostasis, intraperitoneal drains, and conversion to open surgery), and the alternative which can be used in advanced cases
Quranic-Intellectual Recitation of the Truth of the Religion Perfection, Considering the Necessity of Internal and External Compatibility of the Third Verse of Surah Ma'idah, along with a Critique of Sunni Views
Authors: Rezai Javad , Shahrokhi S. Ahmadreza , Karimivala Mohammadreza 
Published: August 2021

The perfection verse (third verse of Surah Ma'idah) is one of the most important verses of the Qur'an in the guardianship and Imamate discussion, in which the sects generally refer to the following interpretive narrations in explaining it while there is a lot of controversies. Shiite narrations consider the verse revelation on the day of Ghadir and about the guardianship of Imam Ali (PBUH), but the Sunnis deny this. In this article, for the first time, by categorizing the views of the Sunnis and considering the necessity of internal compatibility of the content of the verse and external compatibility with other verses and the intellectual necessities and without quoting narrations, is proven that the perfection of religion is possible only with Imamate and Wilayah with a novel style; and this is the Shiite vote. This research easily refuted all the possibilities mentioned in Sunni sources by the mentioned method and without the need to enter into the usual disputes in the interpretation of the verse. Recognize the time of verse revelation and proving the scope and territory of the Imamate and the Imam’s conditions are other results of this research.
A Discourse of Theater Performance in Improving Nationalism in Surakarta
Authors: Tarwanto Roni Desi , Susanto Dwi Susanto , Abdullah Wakit Abdullah 
Published: August 2021

Indonesian nationalism is the manifestation of Indonesians’ love to their State and homeland based on Pancasila. Nationalism is now in new civilization vortex called globalization and encounters increasingly big challenge. The feeling of nationalism has been eroded now and faded gradually as time progresses. Therefore, many parties begin to revive nationalism spirit through some activities, one of which is through theatrical art. Theatrical art was expected to improve nationalism in Surakarta City. Surakarta City or so called Solo is an autonomous area with city status under Central Java Province. This article attempted to discuss “what the role of theatrical art is in improving nationalism”. For that through theater performances with themes that uphold the values of nationality have represented and increased nationalism in the city of Surakarta. Keywords: Discourse, Theatrical Performance, Nationalism, theater comunity in Surakarta City
Natural Insecticidal Activity of Mentha piperita (Peppermint) Oil Nanoemulsion against Agricultural Pest Aulacophora foveicollis (Red Pumpkin Beetle) for Environmental Sustainability
Authors: Iqbal Farhath Matheen , Livingstone Ananthi Rachel , Lingam Kalaiyarasi , Suyambu Pavithra 
Published: August 2021

Background: Red pumpkin beetle, Aulacophora foveicollis (Coleoptera: Chrysomelidae), is a serious agricultural pest of cucurbit plants. Chemical pesticides have been in practice for many years to control the pests. Recently, the plant essential oils were formulated as nanoemulsion, have gained interest for their effectiveness and eco-friendly nature. The current study was aimed to assess the efficacy of Mentha piperita nanoemulsion against an agricultural pest A. foveicollis. Methods: M. piperita essential oil was analyzed by GC-MS technique. Ulrasonication method was used to formulate the nanoemulsion. The stable nanoemulsion was investigated and characterized by DLS. The efficacy of the nanoemulsion was screened against the pest of cucurbits, A. foveicollis at different concentrations and compared with its own bulk emulsion. Result: In GC-MS technique, menthol was found to be the major component with the highest percentage of 16.47 and the nanoemuslion was prepared in different ratios comprising of peppermint oil, surfactant, acetone and water. The stable nanoemulsion was investigated and characterized by DLS with mean droplet size of 10.84nm, PDI was 0.1 and zeta potential was -45 mv, altogether proves to be the good stability of nanoemulsion. The Bioassay was conducted for about 96 hours and the highest mortality was recorded in the nanoemulsion than the bulk emulsion. The resulted LC50 value of nanoemulsion is 22.38% v/v is found to be effective than the LC50 value of bulk emulsion is 87% v/v, respectively. Thus, from the results obtained the nanoemulsion was found to be highly significance than that of the bulk emulsion. So, nanoemuslion may be used as an eco-friendly agent against the agricultural pest management.
What will the coronavirus do to our kids? Parents in Austria dealing with the effects of the COVID-19 pandemic on their children
Authors: Zartler Ulrike , Dafert Vera , Dirnberger Petra 
Published: August 2021

Objective: This study investigates parents' experiences in dealing with the potential negative effects of the pandemic on their offspring, and seeks to explicate (1) how parents have assessed their children's situations during the pandemic; (2) what challenges parents have experienced in accompanying their offspring through the crisis; and (3) what strategies parents have developed for helping their children cope with the effects of the pandemic.
Background: The COVID-19 pandemic and the accompanying protection measures have placed heavy demands on parents and their children. Both groups have been shown to experience stress, as families have been forced to adjust their daily routines under rapidly changing circumstances.
Method: Data are based on an Austrian qualitative longitudinal study, relying on interviews and diary entries of 98 parents of kindergarten- and school-aged children who have been contacted repeatedly since the first week of the first country-wide lockdown (nine waves of data collection between March and December 2020). Data analysis employs a combination of thematic analysis and the grounded theory coding scheme.
Results: Results show that parents see the pandemic as having many detrimental effects, and very few positive effects, on their children’s emotional, physical and social well-being as well as their educational performance. Parents have experienced a wide variety of challenges (explaining the pandemic and the measures; handling emotions; managing new roles; accompanying children through repeated adaptation processes). To deal with these challenges, respondents developed four distinct strategies (structure, cohesion, information, and independence).
Conclusion: We conclude that parents are making substantial contributions to society, and are shouldering large burdens in accompanying their children through the crisis. However, their capacity to meet all of their children’s needs is limited. Thus, to prevent the pandemic from having devastating long-term consequences, it is essential to provide sufficient support for children, parents, and families.
Validação da Escala Velicer de Atitudes frente à Violência (EVAFV)
Authors: Paiva Tamyres Tomaz , Pimentel Carlos Eduardo , Cavalcanti Jaqueline Gomes , Barbosa Iasmim Caroline Guedes , Tavares Suiane Magalhães 
Published: August 2021

A violência está inserida dentro do âmbito social e é definida como qualquer comportamento que cause dano ao outro. Atitudes em relação à violência desempenham um papel importante em uma ampla variedade de comportamentos agressivos. Objetivou-se traduzir e validar a Escala Velicer de Atitudes frente à Violência para o contexto brasileiro. Participaram 202 respondentes. As análises foram realizadas no SPSS, versão 21, e no RStudio com pacote Lavaan. Os resultados, por meio da análise confirmatória, foram de que a escala apresenta uma estrutura com quatro fatores (violência na guerra, código penal, punição corporal e violência íntima) e apresentou validade convergente com os fatores de agressão (agressão verbal, física, hostilidade e raiva), e discriminante, com os cinco traços de personalidade (agradabilidade, extroversão, conscienciosidade, estabilidade emocional e abertura a experiências). Diante desses dados, a presente escala apresenta boas propriedades psicométricas para o uso no contexto brasileiro.