bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recent progresses on paper‐based triboelectric nanogenerator for portable self‐powered sensing systems
Authors: Tang Qian , Guo Hengyu , Yan Peng , Hu Chenguo 
Published: October 2020

AbstractIn recent years, as a new type of mechanical energy conversion technology, triboelectric nanogenerator (TENG) based on the coupling effect of contact electrification and electrostatic induction has shown distinct advantages in the field of distributed micro/nano power sources, high‐precision sensing, and portable high‐voltage sources. Typically, the main functional components of TENG include a tribo‐layer and the conductive layer, both of which need to be attached on the substrate material serving as support framework thus form a usable device. According to the property of different substrate materials, TENG can achieve various characteristics to meet different practical demands. Among plenty of materials, paper, a commend commodity in daily life, with the characters of cost effectiveness, flexibility, lightweight, integratability, and biocompatibility is considered as a promising substrate or frame material to form super‐portable TENG for self‐powered electronic devices. However, the rough and porous structure increases the risk of breaking conductive layer prepared by directly depositing metal film during continuously periodical deformation. Herein, focusing on paper‐based triboelectric nanogenerator, this article summarizes the preparation methods of paper‐based durable conductive layer. Then, the recent researches of paper‐based TENGs are systematically introduced from the aspects of mechanical energy harvesting, micro‐nano energy devices, self‐powered sensors and systems, and so on. Finally, future opportunities and the remaining challenges are expected and discussed.image
ANN‐based energy consumption prediction model up to 2050 for a residential building: Towards sustainable decision making
Authors: Verma Anurag , Prakash Surya , Kumar Anuj 
Published: October 2020

AbstractThe energy consumption in the residential sector has been increased steadily and occupied approximately 30–40% of overall energy consumption. Recent researches on energy consumption have highlighted the significance of residential building energy consumption forecast for enhanced decision‐making in terms of an energy conservation plan. Therefore, it is essential to predict the energy consumption of a residential building by developing a precise prediction model with 95% coefficient bounds. In this paper, an energy consumption data‐driven prediction model is developed using the artificial neural network (ANN) and TRNSYS software. This ANN model is trained with deep learning by using the Levenberg–Marquardt backpropagation algorithm. A 2BHK single‐story multizone residential building having six zones (two bedrooms, one living room, one kitchen, and two toilets) has been modeled in TRNSYS to estimate the energy consumption based on predicted temperature and humidity. First, the data mining technique is used to discover and summarize the historical weather data for temperature and relative humidity prediction. Secondly, the cooling and heating energy consumption has been estimated based on predicted relative humidity and temperature in TRNSYS. In contrast, the energy consumption of ventilation and lighting system is calculated mathematically based on SP 41 standard.
Quantification of the reduction factors of seismic capacity for damaged RC column members using the experiment database
Authors: Chiu Chien‐Kuo , Sung Hsin‐Fang , Chiou Tsung‐Chih 
Published: October 2020

AbstractStatic‐cyclic loading is used to identify the reduction factors of seismic capacity of damaged reinforced concrete (RC) column members. The reduction factors of seismic capacity that are obtained from specimens damaged under static‐cyclic loading differ from those obtained in dynamic testing, and this difference is investigated in this work. The experimental results obtained in this work, previously obtained results, and the “Pacific Earthquake Engineering Research Center Structural Performance Database (PEER)” are used to obtain reduction factors of strength, stiffness, and energy dissipation. From the damage levels of column members after an earthquake, corresponding reduction factors can be determined and used in the seismic assessment of an RC building.
Ingestion and Dermal Cancer Risk via Exposure to Polycyclic Aromatic Hydrocarbon–Contaminated Soils in an Oil-Producing Community, Niger Delta, Nigeria
Authors: Enuneku Alex , Ogbeide Ozekeke , Okpara Benjamin , Kubeyinje Bawo Frank , Job Oluwafunke , Asemota Charming Osaro , Imoobe Tunde , Ezemonye Lawrence Ikechukwu 
Published: October 2020

Abstract
There is an intrinsic link between polycyclic aromatic hydrocarbons (PAHs) accumulated in soils and increased health risk to humans after exposure to contaminated soil via ingestion, inhalation of particulates carrying PAHs, and direct contact with polluted soils. However, the assessment of PAH contamination in most developing countries fails to consider health risk assessment. Therefore, a comprehensive study was conducted to determine the concentration, source, toxicity, and human health risks of 16 PAHs in an urban area in Warri, Delta State, in the Niger Delta region of Nigeria. The results showed varying contamination levels for PAH in soil samples from all sampling points, with benzo[a]anthracene (BaP; at 338.81 μg/kg) being the most abundant at all 9 sampling stations. The highest total concentration of PAH was observed at station 5 (1230.98 μg/kg), which was closest to a flow station. Further comparison with PAH contamination standards showed that soils from stations 1 and 2 were weakly contaminated (&lt;600 μg/kg), and soil samples from stations 3, 4, 6, 7, and 9 were moderately contaminated (&lt;1000 μg/kg). Soil samples from stations 5 and 8 were observed to be heavily contaminated (&gt;1000 μg/kg). The BaP estimates for soil samples obtained for stations 3 to 9 were higher than the BaP soil screening value (15 μg/kg), indicating a carcinogenic potential of soil samples. The results also showed that the incremental lifetime cancer risk estimates for PAH in the soil for adults and children were above the recommended threshold (10−4) for ingestion and dermal contact, implying that exposure to contaminated soil could lead to cancers in adults and children. Currently, there are no regional or national standards for PAHs in soil that would indicate an increased likelihood for human exposure and subsequent health issues. Environ Toxicol Chem 2021;40:261–271. © 2020 SETAC
Blockchain as a service models in the Internet of Things management: Systematic review
Authors: Li Daming , Deng Lianbing , Cai Zhiming , Souri Alireza 
Published: October 2020

AbstractToday, blockchain uses a list of various blocks for storing a distributed flat of invariable information that informs of a set of replicated logical things in the Internet of Things (IoT). In the blockchain, a set of blocks includes various transactions containing a cryptographic hash value and a timestamp. Blockchain‐as‐a‐service (BaaS) as a new service in cloud providers presents an infrastructure for accessing users to execute, manage, and monitor blockchain applications without high secured infrastructure requirements. Recently, BaaS concepts widely have used the management of IoT applications in different layers such as network, data, control, and resource. This paper provides a systematic review of recent research studies in BaaS models. The main goal behind this review is to categorize the applied scenarios, trends, evaluated Quality of Service (QoS) factors, new challenges, and open directions on BaaS models in IoT management. To evaluate the existing research studies in this field, five analytical research questions are proposed to analyze the technical aspects of each study. The analytical results based on existing research questions specify that the BaaS models are applied to network layer to manage IoT environment more than other layers. Also, security and privacy are two important factors to evaluate the existing BaaS models in cloud‐edge IoT environments. Finally, the integration of BaaS models on IoT environments with interconnections of cloud‐edge computing and software defined networks creates great secure opportunities for smart environment applications to monitor, manage, and improve all the atomic services and resources.
Determination of fungal diversity of acidic gruel by using culture‐dependent and independent methods
Authors: Wang Yurong , She Mina , Guo Zhuang , Shuang Quan 
Published: October 2020

AbstractTraditional fermented cereals are a rich source of naturally derived, diverse microorganisms. Illumina MiSeq high‐throughput sequencing was used to investigate thoroughly fungal microflora in Western Inner Mongolian acidic gruel. A total of 589,495 sequences were obtained from 16 acidic gruel samples. Ascomycota was found to be the predominant phylum with a relatively abundance of 97.54%, followed by Basidiomycota (2.26%) and Chytridiomycota (0.1%). The dominant genera obtained from the acidic gruel were Candida, Galactomyces, Hanseniaspora, Guehomyces, Zygosaccharomyces, Trichosporon, Rhodosporidium, Penicillium, and Blastobotrys. Candida and Galactomyces were predominant genera, and their relative abundances were 57.59% and 34.95%, respectively. A total of 50 yeast strains were isolated and identified. Statistical analysis indicated that P kudriavzevii and Geo. silvicola affiliated with Ascomycota were the dominant yeasts in acidic gruel, accounting for 28% and 22%, respectively. This study provides an unequivocal theoretical basis for the study of fungal diversity and the identification and preservation of yeasts in traditional fermented cereals. It also provides validated strain resources for further exploration of the effect of yeasts on acidic gruel quality.
Active packaging for Salmon stored at refrigerator with Polypropylene nanocomposites containing 4A zeolite, ZnO nanoparticles, and green tea extract
Authors: Azizi‐Lalabadi Maryam , Rafiei Leila , Divband Bahark , Ehsani Ali 
Published: October 2020

AbstractIn this study, three types of Polypropylene‐based (PP) films (two active nanocomposites and one control film) containing zinc oxide nanoparticles (ZnO NPs), 4A zeolite (4A Z), and green tea extract (GTE) were studied as modern active packaging's that can adjust the release of antimicrobial agents. The influence of PP nanocomposite with 3% (w/w) ZnO NPs/4A Z/GTE (treatment 1) and 6% (w/w) ZnO NPs/4A Z/GTE (treatment 2) on controlling microbial growth and preserving the sensory and chemical qualities of Salmon over nine days of storage at 4 ± 1°C was evaluated. The disk diffusion test revealed inhibition zones in the range of 10.98 ± 0.03 to 13.42 ± 0.01 m for treatments 1 and 2, respectively; the nanocomposite film with 6% ZnO NPs/4A Z/GTE had the highest antimicrobial effect against Gram‐negative bacteria (p < .05). Chemical analysis revealed that the initial peroxide value of Salmon was 0.68 ± 0.0 mEq/kg, which increased by day 9 to 12.3 ± 0.03 mEq/kg in the control sample, but rising only to 9.9 ± 0.01 and 7.3 ± 0.02 mEq/kg in treatments 1 and 2, respectively (p < .05). The shelf life of Salmon given treatment 2 increased significantly to nine days relative to the control. Accordingly, these nanocomposite films are promising as new active packaging for preventing microbial growth and preserving the quality of salmon.
Simultaneous detection of ovine and caprine DNA in meat and dairy products using triplex TaqMan real‐time PCR
Authors: Guo Liang , Yu Yuan , Xu Wei‐Liang , Li Chun‐Dong , Liu Guo‐Qiang , Qi Lemuge , Luo Jian‐Xing , Guo Yuan‐Sheng 
Published: October 2020

AbstractIn this study, we report a new approach for the detection of ovine and caprine DNA in meat and dairy products using real‐time PCR protocol. Our new approach is based on the use of endogenous control and species‐specific TaqMan fluorescence probes. With this methodology, we specifically detected ovine and caprine DNA in meat and dairy products, with limits of detection of 0.001 ng and 0.01 ng for fresh and processed ovine meats, respectively, and 0.00025 ng, 0.005 ng, and 0.01 ng for caprine meat, milk, and cheese, respectively. Artificial meat and milk mixtures from sheep and goat were used to validate the protocol. Our results support that TaqMan real‐time PCR with endogenous control is an efficient and accurate method to detect DNA from sheep and goat in meat and dairy products.
Varying perivascular astroglial endfoot dimensions along the vascular tree maintain perivascular‐interstitial flux through the cortical mantle
Authors: Wang Marie Xun , Ray Lori , Tanaka Kenji F. , Iliff Jeffrey J. , Heys Jeffrey 
Published: October 2020

AbstractThe glymphatic system is a recently defined brain‐wide network of perivascular spaces along which cerebrospinal fluid (CSF) and interstitial solutes exchange. Astrocyte endfeet encircling the perivascular space form a physical barrier in between these two compartments, and fluid and solutes that are not taken up by astrocytes move out of the perivascular space through the junctions in between astrocyte endfeet. However, little is known about the anatomical structure and the physiological roles of the astrocyte endfeet in regulating the local perivascular exchange. Here, visualizing astrocyte endfoot–endfoot junctions with immunofluorescent labeling against the protein megalencephalic leukoencephalopathy with subcortical cysts‐1 (MLC1), we characterized endfoot dimensions along the mouse cerebrovascular tree. We observed marked heterogeneity in endfoot dimensions along vessels of different sizes, and of different types. Specifically, endfoot size was positively correlated with the vessel diameters, with large vessel segments surrounded by large endfeet and small vessel segments surrounded by small endfeet. This association was most pronounced along arterial, rather than venous segments. Computational modeling simulating vascular trees with uniform or varying endfeet dimensions demonstrates that varying endfoot dimensions maintain near constant perivascular‐interstitial flux despite correspondingly declining perivascular pressures along the cerebrovascular tree through the cortical depth. These results describe a novel anatomical feature of perivascular astroglial endfeet and suggest that endfoot heterogeneity may be an evolutionary adaptation to maintain perivascular CSF‐interstitial fluid exchange through deep brain structures.
Shared and distinct global signal topography disturbances in subcortical and cortical networks in human epilepsy
Authors: Li Rong , Wang Hongyu , Wang Liangcheng , Zhang Leiyao , Zou Ting , Wang Xuyang , Liao Wei , Zhang Zhiqiang , Lu Guangming , Chen Huafu 
Published: October 2020

AbstractEpilepsy is a common brain network disorder associated with disrupted large‐scale excitatory and inhibitory neural interactions. Recent resting‐state fMRI evidence indicates that global signal (GS) fluctuations that have commonly been ignored are linked to neural activity. However, the mechanisms underlying the altered global pattern of fMRI spontaneous fluctuations in epilepsy remain unclear. Here, we quantified GS topography using beta weights obtained from a multiple regression model in a large group of epilepsy with different subtypes (98 focal temporal epilepsy; 116 generalized epilepsy) and healthy population (n = 151). We revealed that the nonuniformly distributed GS topography across association and sensory areas in healthy controls was significantly shifted in patients. Particularly, such shifts of GS topography disturbances were more widespread and bilaterally distributed in the midbrain, cerebellum, visual cortex, and medial and orbital cortex in generalized epilepsy, whereas in focal temporal epilepsy, these networks spread beyond the temporal areas but mainly remain lateralized. Moreover, we found that these abnormal GS topography patterns were likely to evolve over the course of a longer epilepsy disease. Our study demonstrates that epileptic processes can potentially affect global excitation/inhibition balance and shift the normal GS topological distribution. These progressive topographical GS disturbances in subcortical–cortical networks may underlie pathophysiological mechanisms of global fluctuations in human epilepsy.
Trading off health and financial protection benefits with multiobjective optimization
Authors: Karsu Özlem , Morton Alec 
Published: October 2020

AbstractCountries which are introducing a system of Universal health coverage have to make a number of key tradeoffs, of which one is the tradeoff between the level of coverage and the degree to which patients are exposed to potentially catastrophic financial risk. In this study, we first present a way in which decision makers might be supported to focus on in a particular part of the tradeoff curve and ultimately choose an efficient solution. We then introduce some multiobjective optimization models for generating the tradeoff curves given data about potential treatment numbers, costs, and benefits. Using a dataset from Malawi, we demonstrate the approach and suggest a core index metric to make specific observations on the individual treatments. Moreover, as there has been some debate about the best way to measure financial exposure, we also investigate the extent to sensitivity of our results to the precise technical choice of financial exposure metric. Specifically, we consider two metrics, which are the total number of cases protected from catastrophic expenditure and a convex penalty function that penalizes out‐of‐pocket expenditures in an increasingly growing way, respectively.
Association of human papillomavirus integration with better patient outcomes in oropharyngeal squamous cell carcinoma
Authors: Pinatti Lisa M. , Sinha Hana N. , Brummel Collin V. , Goudsmit Christine M. , Geddes Timothy J. , Wilson George D. , Akervall Jan A. , Brenner Chad J. , Walline Heather M. , Carey Thomas E. 
Published: October 2020

AbstractBackgroundThe molecular drivers of human papillomavirus‐related head and neck squamous cell carcinoma (HPV + HNSCC) are not entirely understood. This study evaluated the relationship between HPV integration, expression of E6/E7, and patient outcomes in p16+ HNSCCs.MethodsHPV type was determined by HPV PCR‐MassArray, and integration was called using detection of integrated papillomavirus sequences polymerase chain reaction (PCR). We investigated whether fusion transcripts were produced by reverse transcriptase polymerase chain reaction (RT‐PCR). E6/E7 expression was assessed by quantitative RT‐PCR. We assessed if there was a relationship between integration and E6/E7 expression, clinical variables, or patient outcomes.ResultsMost samples demonstrated HPV integration, which sometimes resulted in a fusion transcript. HPV integration was positively correlated with age at diagnosis and E6/E7 expression. There was a significant difference in survival between patients with vs without integration.ConclusionsContrary to previous reports, HPV integration was associated with improved patient survival. Therefore, HPV integration may act as a molecular marker of good prognosis.
Biological evaluation of preceramic organosilicon polymers for various healthcare and biomedical engineering applications: A review
Authors: Francis Adel 
Published: October 2020

AbstractPreceramic organosilicon materials combining the properties of a polymer and an inorganic ceramic phase are of great interest to scientists working in biomedical sciences. The interdisciplinary nature of organosilicon polymers and their molecular structures, as well as their diversity of applications have resulted in an unprecedented range of devices and synergies cutting across unrelated fields in medicine and engineering. Organosilicon materials, especially the polysiloxanes, have a long history of industrial and medical uses in many versatile aspects as they can be easily fabricated into complex‐shaped products using a wide variety of computer‐aided or polymer manufacturing techniques. Thus far, intensive research activities have been mainly devoted to the processing of preceramic organosilicon polymers toward magnetic, electronic, structural, optical, and not biological applications. Herein we present innovative research studies and recent developments of preceramic organosilicon polymers at the interface with biological systems, displaying the versatility and multi‐functionality of these materials. This article reviews recent research on preceramic organosilicon polymers and corresponding composites for bone tissue regeneration and medical engineering implants, focusing on three particular topics: (a) surface modifications to create tailorable and bioactive surfaces with high corrosion resistance and improved biological properties; (b) biological evaluations for specific applications, such as in glaucoma drainage devices, orthopedic implants, bone tissue regeneration, wound dressing, drug delivery systems, and antibacterial activity; and (c) in vitro and in vivo studies for cytotoxicity, genotoxicity, and cell viability. The interest in organosilicon materials stems from the fact that a vast array of these materials have complementary attributes that, when integrated appropriately with functional fillers and carefully controlled conditions, could be exploited either as polymeric Si‐based composites or as organosilicon polymer‐derived Si‐based ceramic composites to tailor and optimize properties of the Si‐based materials for various proposed applications.
Combined application of femtosecond laser and air‐abrasion protocols to monolithic zirconia at different sintering stages: Effects on surface roughness and resin bond strength
Authors: Okutan Yener , Kandemir Banucicek , Gundogdu Yasemin , Kilic Hamdi Sukur , Yucel Munir Tolga 
Published: October 2020

AbstractThis study aimed to investigate the effects of femtosecond laser (Fs) and/or air‐abrasion protocols on surface roughness (Ra) of zirconia and resin bond strength. Eighty zirconia samples were randomly divided into eight subgroups according to surface treatment protocols: Control (C), Air‐abrasion before sintering (ABS), Air‐abrasion after sintering (AAS), Air‐abrasion before and after sintering (ABS + AAS), Fs laser before sintering (FBS), Fs laser before sintering + air‐abrasion after sintering (FBS + AAS), Fs laser after sintering (FAS), and Fs laser after sintering + air‐abrasion after sintering (FAS + AAS). Measurements of Ra values were obtained using a surface profilometer. Surface morphological properties were evaluated with scanning electron microscopy (SEM), and crystallographic changes were examined by X‐Ray diffractometry (XRD). Self‐adhesive resin cement was bonded to zirconia samples, and shear bond strength (SBS) tests were performed. The data were statistically analyzed by one‐way ANOVA, followed by Tamhane tests. The control group displayed the lowest Ra and SBS values among all groups. The highest Ra and SBS values were found in the FBS and FBS + AAS groups. Air‐abrasion applied before sintering significantly increased the Ra of specimens. FAS, FAS + AAS, and ABS + AAS groups exhibited higher SBS values than AAS and ABS (p < .05). Air‐abrasion applied after Fs laser did not produce any significant change in the Ra and SBS compared to Fs laser alone (p > .05). Femtosecond laser application may be a promising method to enhance the surface roughness of zirconia and improve resin bond strength. Air‐abrasion at pre‐ and post‐sintered stages may also be a viable surface treatment option.
Uniquely restricted matchings in subcubic graphs without short cycles
Authors: Fürst M. , Rautenbach D. 
Published: October 2020

AbstractA matching in a graph is uniquely restricted if no other matching in covers the same set of vertices. We prove that any connected subcubic graph with vertices and girth at least 5 contains a uniquely restricted matching of size at least except for two exceptional cubic graphs of order 14 and 20.