bluuebunny/crossref_metadata_2025_split huggingface dataset:
Association of sleep duration and snack consumption in children and adolescents: The CASPIAN‐V study
Authors: Mozaffarian Nafiseh , Heshmat Ramin , Ataie‐Jafari Asal , Motlagh Mohammad Esmaeil , Ziaodini Hasan , Shafiee Gita , Taheri Majzoubeh , Mansourian Morteza , Qorbani Mostafa , Kelishadi Roya 
Published: February 2020

AbstractObjectivesThe relationship between sleep deprivation and the risk of overweight and obesity is somewhat known in children and adolescents. This study aimed to investigate the relationship between sleep duration and eating snacks in a national sample of children and adolescents aged 6–18 years old.MethodsThis cross‐sectional study was carried out on the data of the fifth survey of the national school‐based surveillance system entitled the “Childhood and Adolescence Surveillance and PreventIon of Adult Non‐communicable Disease” (CASPIAN‐V) study. Short sleeping duration was defined 10 hr per day for children under 10 years and 9 hr per day for children ≥ 10 years. To assess food habits, the consumption frequency of some food groups including sweets, salty snacks, carbonated beverages, diet soft drinks, soft beer, fresh fruits, dried fruits, fresh juices, vegetables, packed juices, dairy products (milk, yogurt, and cheese), fast foods, tea, sugar along with tea, and coffee was asked using Likert scale ( never, rarely, weekly, and daily).ResultsIn multivariate model, short sleep versus long sleep in students was associated with increased chance of eating salty snacks (OR = 1.49 [95% CI: 1.38–1.61]; p = .001), soft drinks (OR = 1.12 [95% CI: 1.04–1.20]; p = .002), fast foods (OR = 1.66 [95% CI: 1.54–1.79]; p < .001), tea (OR = 1.49 [95% CI: 1.39–1.61]; p < .001), and tea with sugar (OR = 1.13 [95% CI: 1.05–1.22]; p < .001). In addition, short sleep in students was associated with a decreased odds of daily intake of soft drinks without sugars (OR = 0.64 [95% CI: 0.58–0.70]; p < .001), soft beer (OR = 0.92 [95% CI: 0.85–0.99]; p < .001), fresh fruit (OR = 0.83 [95% CI: 0.76–0.90]; p < .001), dried fruit (OR = 0.43 [95% CI: 0.39–0.46]; p < .001), fresh fruit juice (OR = 0.66 [95% CI: 0.62–0.72]; p < .001), packed juice (OR = 0.91 [95% CI: 0.84–0.98]; p < .009), milk (OR = 0.51 [95% CI: 0.47–0.55]; p < .001), yogurt (OR = 0.86 [95% CI: 0.79–0.93]; p ≤ .001), and coffee (OR = 0.82 [95% CI: 0.76–0.89]; p ≤ .001).ConclusionsThe findings of this study indicate a significant relationship between sleep duration and unhealthy food habits. Therefore, increasing awareness of families in this area may reduce obesity and its complications.
One‐Step Thermochemical Conversion of Biomass Waste into Superhydrophobic Carbon Material by Catalytic Pyrolysis
Authors: Li De‐Chang , Xu Wan‐Fei , Cheng Hui‐Yuan , Xi Kun‐Fang , Xu Bu‐De , Jiang Hong 
Published: February 2020

AbstractPreparation of superhydrophobic carbon materials from lignocellulosic biomass waste via one‐step carbonization is very difficult due to the existences of polar functional groups and ashes, which are extremely hydrophilic. Herein, superhydrophobic carbon materials can be facilely synthesized by catalytic pyrolysis of biomass waste using FeCl3 as catalyst. The results show that the surface energy of lignin‐derived char (CharL) is significantly reduced to 19.25 mN m−1 from 73.29 mN m−1, and the water contact angle increased from 0 to 151.5°, by interaction with FeCl3. Multiple characterizations and control experiments demonstrate that FeCl3 can catalyze the pyrolytic volatiles to form a rough graphite and diamond‐like carbon layer that isolates the polar functional groups and ashes on CharL, contributing to the superhydrophobicity of the CharL. The one‐step catalytic pyrolysis is able to convert different natural biomass waste (e.g., lignin, cellulose, sawdust, rice husk, maize straw, and pomelo peel) into superhydrophobic carbon materials. This study contributes new information related to the interfacial chemistry during the sustainable utilization of biomass waste.
Porous Carbon Nanofoam Derived From Pitch as Solar Receiver for Efficient Solar Steam Generation
Authors: Chen Lihua , Zhao Shujing , Hasi Qi‐Meige , Luo Xiaofang , Zhang Chuantao , Li Hailing , Li An 
Published: February 2020

AbstractPhotothermal‐material‐assisted solar‐steam generation has recently attracted intensive attention due to its superior evaporation rate with high energy conversion efficiency for desalination. In this work, a simple approach for fabrication of porous carbon nanofoam (PCN) is reported, which is prepared by the carbonization of pitch using a combination of CaCO3 and NaCl templates, Meanwhile, NaCl saturated solution acts as a porogen to produce micropores and mesopores as solar receiver for efficient solar steam generation. The as‐prepared PCN shows excellent porosity and mesoporous feature with an average pore size of 26.8 nm. It also shows superior light absorption of 88% and better thermal insulation (thermal conductivity 0.993 W m−1 K−1). Based on these characteristics, the as‐prepared PCN can be used as a promising solar receiver. Under 1 sun, 2 sun, and 3 sun irradiation, the PCN‐based solar receiver shows high energy conversion efficiencies of 88%, 86%, and 84%, respectively. Taking advantage of the abundant, low‐cost, and commercial availability of pitch as well as its simple and cost‐effective manufacture method, the PCN‐based solar receiver may hold great potential for a broad variety of solar‐steam generation applications, for instance, fresh water production, power generation, desalination, and so on.
Determination of Antimicrobial and Toxic Metal Removal Activities of Plant‐Based Synthesized (Capsicum annuumL. Leaves), Ecofriendly, Gold Nanomaterials
Authors: Baran Mehmet Firat , Acay Hilal , Keskin Cumali 
Published: February 2020

AbstractNanoparticles are valuable materials with widespread use. The fact that these materials are obtained by biological resources with an environmentally friendly method contributes to the development of studies in this field. Gold nanoparticles (AuNPs) from waste vegetable sources (green leaves ofCapsicum annumL.) are economically and easily synthesized. The obtained particles are characterized by UV–vis spectroscopy (UV–vis), Fourier transform infrared spectroscopy (FTIR), X‐ray diffraction (XRD), and scanning electron microscopy (SEM) analysis. The antimicrobial activity of the particles on the pathogenic microorganismsEscherichia coliATCC 25922,Staphylococcus aureusATCC 29213,Bacillus subtilisbacteria, andCandida albicansyeast are found to have a significant suppressive effect. The removal activities of eight toxic metals (Pd, Cd, Fe, Ni, Co, Mn, Zn, Pb) in Diyarbakır drinking water and artificially prepared water within different pHs are investigated. Gold nanoparticles synthesized fromCapsicum annuumL. leaves are found to be effective in toxic metal removal in water samples.
An evaluation of an offshore energy installation for the Black Sea region of Turkey and the effects on a regional decrease in greenhouse gas emissions
Authors: Akdağ Ozan , Yeroglu Celaleddin 
Published: February 2020

AbstractOffshore wind power plants (OWPPs), which are not yet installed in Turkey, are becoming a popular method of energy production around the world because of their environmentally friendly nature. Thus, the installation of OWPPs should be an important agenda item in terms of Turkey's renewable energy policies as a contribution to the global greenhouse gas emission targets. This study proposes a model for installing OWPPs in a suitable part of the Black Sea region of Turkey and simulates the results. The suitable locations for OWPP installation were evaluated according to the technical and geographical conditions of this region and site criteria. Meteorological data from these locations were analyzed in the Wind Atlas Analysis and Application Program (WAsP) to determine the best location. In this study, an OWPP model with a 204.6 MW installed power capacity was proposed for the identified location, which has a wind speed of 8.77 m s−1 and a wind power density of 348 W m−2. Then, an OWPP model and regional energy transmission system was modeled using DigSilent software. The load flow analysis was performed using this model, and the results show that 7616 tons of toxic gas and 1.527 million tons of greenhouse gas could be reduced in the region in a year if the proposed OWPP were put into operation. Thus, with the installation of OWPP, this study shows that annual CO2 emissions can be reduced by 7.63% for the entire Black Sea region. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd.
Flexible spatial learning requires both the dorsal and ventral hippocampus and their functional interactions with the prefrontal cortex
Authors: Avigan Philip D. , Cammack Katharine , Shapiro Matthew L. 
Published: February 2020

AbstractWhen faced with changing contingencies, animals can use memory to flexibly guide actions, engaging both frontal and temporal lobe brain structures. Damage to the hippocampus (HPC) impairs episodic memory, and damage to the prefrontal cortex (PFC) impairs cognitive flexibility, but the circuit mechanisms by which these areas support flexible memory processing remain unclear. The present study investigated these mechanisms by temporarily inactivating the medial PFC (mPFC), the dorsal HPC (dHPC), and the ventral HPC (vHPC), individually and in combination, as rats learned spatial discriminations and reversals in a plus maze. Bilateral inactivation of either the dHPC or vHPC profoundly impaired spatial learning and memory, whereas bilateral mPFC inactivation primarily impaired reversal versus discrimination learning. Inactivation of unilateral mPFC together with the contralateral dHPC or vHPC impaired spatial discrimination and reversal learning, whereas ipsilateral inactivation did not. Flexible spatial learning thus depends on both the dHPC and vHPC and their functional interactions with the mPFC.
The Enantiomers of Trinorbornane and Derivatives Thereof
Authors: Delarue Bizzini Lorenzo , Bürgi Thomas , Mayor Marcel 
Published: February 2020

AbstractHerein, we report the synthesis of the enantiomers of trinorbornane, a tetracyclic saturated hydrocarbon with the chemical formula C11H16. The preparation of these rigid carbon scaffolds was enabled by the successful chiral separation of its tricyclic precursor, thus allowing the enantiomers to be synthesized through a reductive radical cyclization reaction. Assignment of the absolute conformation of the enantiomers was achieved through VCD experiments. Further, we report an alternative cyclization procedure providing access to hydroxyl and phenyl sulfone functionalized trinorbornanes.
Heat conduction in sliding contact at start‐up and stopping
Authors: Moghaddam Saied 
Published: February 2020

AbstractA transient heat conduction problem, in which a frictional heat source is uniformly distributed over a square region on the surface of a half‐space and varies in time, has been considered. Two states are studied, linear and oscillatory velocity, and a three‐dimensional numerical model, using the ADI method, is developed to calculate temperature and thermal resistance while start‐up and stopping. The effects of aspect ratio, steady‐state velocity, start‐up and stopping times, and frequency are examined.
Simulation of unsteady natural convection flow of a Casson viscoplastic fluid in a square enclosure utilizing a MAC algorithm
Authors: Devi T Sarala , Lakshmi C Venkata , Venkatadri K , Prasad V Ramachandra , Bég O Anwar , Reddy M Suryanarayana 
Published: February 2020

AbstractNon‐Newtonian fluids are increasingly being deployed in energy systems and materials processing. Motivated by these developments, in the current study, a numerical simulation is performed on two‐dimensional, unsteady buoyancy‐driven flow in a square cavity filled with non‐Newtonian fluid (Casson liquid). The enclosure geometry features vertical isothermal walls (with one at higher temperature than the other) and thermally insulated horizontal walls. The conservation equations for mass, momentum, and energy are normalized via appropriate transformations and the resulting dimensionless partial differential boundary value problem is solved computationally with a marker and cell algorithm, which features a finite difference scheme along with a staggered grid system. The projection method is employed to evaluate the pressure term. Extensive visualizations of the impact of emerging physical parameters (Rayleigh number and Casson viscoplastic parameter) on streamline and isotherm distributions in the cavity are presented for fixed Prandtl number. Nusselt number, that is, heat transfer rate, is increased with rising values of the Casson viscoplastic fluid parameter for any value of Rayleigh number. The density of streamlines increases with increasing values of Casson viscoplastic fluid parameter upto 1. Overall, the Casson fluid parameter plays a vital role in controlling the convective heat transfer within the enclosure. The computations are relevant to hybrid solar collectors, materials fabrication (polymer melts), etc.
Second law analysis of a fossil‐geothermal hybrid power plant with thermodynamic optimization of geothermal preheater
Authors: Nsanzubuhoro Christa N. , Bello‐Ochende Tunde , Malan Arnaud G. 
Published: February 2020

AbstractThere is an urgent and compelling need to develop innovative and more effective ways to integrate sustainable renewable energy solutions into the already existing systems or, better yet, create new systems that all together make use of renewable energy. This study aims to establish the optimum working conditions of a geothermal preheater in a power plant that makes use of both renewable and nonrenewable energy resources, where renewable (geothermal) energy is used to boost the power output in an environmentally sustainable way. Hence, two models, one, a simplified model of a Rankine cycle with single reheat and regeneration, and another, with a geothermal preheater substituting the low‐pressure feedwater heater (LPFWH), were compared. The Engineering Equations Solver software was used to perform an analysis of the thermodynamic performance of the two models designed. An analysis was done to evaluate the energetic and exergetic effects of replacing a LPFWH with a geothermal preheater sourcing heat from a low temperature geothermal resource (100°C‐160°C). Results from the thermodynamic analysis reveal that the hybridization boosts the power output by approximately 4% and it is superior in terms of the second law. Entropy generation minimization analysis was then employed to establish optimal working conditions of the hybrid system (ie, the geothermal preheater modeled as a downhole coaxial heat exchanger).
Understanding of changes in abortion rate following liberalization of abortion law among Brazilian residents in obstetrics and gynecology
Authors: Bento Silvana Ferreira , Pádua Karla Simônia , Faúndes Anibal , Carvalho Pacagnella Rodolfo , Fernandes Karayna Gil , Osis Maria José Duarte 
Published: February 2020

AbstractObjectiveTo evaluate residents’ knowledge about the evolution of abortion rates in countries where abortion has been legalized, and to assess whether such knowledge correlates with residents’ sociodemographic characteristics and experience in abortion care.MethodsA multicenter, cross‐sectional study was conducted in 21 Brazilian hospitals with 404 medical residents in obstetrics and gynecology. Data collection occurred during February 2015 through January 2016. Data were collected through a self‐administered, anonymous questionnaire. The χ2 test, Fisher exact test, and multiple logistic regression analysis were performed.ResultsOf residents, 60% believed that the abortion rate would increase after legalization; 82% had been involved in the care of women with incomplete abortion and 71% in the care of women admitted for legal abortion. Associations were found between knowledge of the evolution of the abortion rate after legalization and region of birth, region of medical school, and importance attached to religion. Multiple regression confirmed that studying medicine in the south/southeast of Brazil and attaching little importance to religion were associated with knowing that legalization does not lead to an increase in abortion rate.ConclusionInformation relating to abortion in medical schools and during residency is very limited and should be improved.
Living kidney transplantation without perioperative anticoagulation therapy for a patient with heparin‐induced thrombocytopenia
Authors: Nishida Hayato , Fukuhara Hiroki , Yamagishi Atsushi , Hosoya Noriyuki , Ichiyanagi Osamu , Sakurai Toshihiko , Naito Sei , Yamanobe Takuya , Kato Tomoyuki , Tsuchiya Norihiko 
Published: February 2020

IntroductionHeparin‐induced thrombocytopenia is an antibody‐mediated acquired prothrombotic state induced by heparin exposure. The risk of thromboembolic diseases in kidney transplantation with heparin‐induced thrombocytopenia without perioperative anticoagulation has not been determined.Case presentationA 64‐year‐old male hemodialysis patient with heparin‐induced thrombocytopenia was referred to our hospital for living kidney transplantation. Anti‐heparin‐induced thrombocytopenia antibody was positive at the time of referral; however, it turned negative 4 months after heparin cessation during hemodialysis sessions. Living kidney transplantation by donation from his wife was performed using the standard technical procedure. Both heparinization and application of medical equipment containing heparin were avoided; however, no anticoagulant was administered intra‐ and postoperatively. The graft kidney functioned immediately, and no thromboembolic event related to heparin‐induced thrombocytopenia occurred.ConclusionKidney transplantation without perioperative anticoagulation therapy after disappearance of anti‐heparin‐induced thrombocytopenia antibody is a well‐tolerated treatment option for patients with end‐stage kidney disease.
CHINA'S PLANS AND ACTION ON IMPLEMENTATION OF ICID VISION 2030†
Authors: Gao Zhanyi 
Published: February 2020

AbstractWe are living in a changing world. The sustainable development goals (SDGs) launched by the United Nations highlight that water is closely linked to a number of key global challenges. Agricultural water management is vital to food security and sustainable rural development. The International Commission on Irrigation and Drainage (ICID) has realigned its vision and dedicated itself to a mission to support sustainable rural development by formulating and implementing the vision of ICID for 2030. As a member country of ICID, China, with the largest population and agricultural production, puts great importance on improving agricultural water management for achieving food security under water shortage and a growing demand for agricultural production. China has been working at two levels to enhance agricultural water management. At on‐farm level China has worked out plans for developing high‐standard farmland by highlighting integrated water and land management; at system level China is working on plans for the modernization of irrigation and drainage systems by upgrading systems and applying information (IT) and automation technologies. This paper summarizes the objectives, tasks and measures for developing high‐standard farmland in China. © 2020 John Wiley & Sons, Ltd.
Dysregulation of miRNAs as a signature for diagnosis and prognosis of gastric cancer and their involvement in the mechanism underlying gastric carcinogenesis and progression
Authors: Ahadi Alireza 
Published: February 2020

AbstractGastric cancer (GC) is the second main cause of cancer‐related mortality worldwide. The poor prognosis and survival of GC are due to diagnosis in an advanced, noncurable stage and with a restricted response to chemotherapy. GC is usually monitored in an advanced stage; therefore, the poor prognosis and lower level of survival rate with a restricted response to chemotherapy can be detected. Valuable and sensible biomarkers are urgently needed to display screen patients with a high risk of GC that can complement endoscopic diagnosis. Such biomarkers will enable the efficient prediction of the therapeutic response and prognosis of GC patients and prefer the establishment of an advantageous treatment method for each and every patient. Noninvasive diagnostic biomarkers may additionally make a contribution to the early identification of GC and enhance medical management. MicroRNAs (miRNAs) are a group of small noncoding RNAs that have displayed a strong association with GC. Accumulating evidence indicates that miRNAs are potential biomarkers with more than one diagnostic function for GC. Actually, miRNAs regulate cell proliferation, apoptosis, migration, invasion, and metastasis via many biological pathways through the repression of target mRNAs. The current review is accordingly to spotlight the multifaceted roles of miRNAs in GC, which would provide indications for future research. Therefore, we review right here the aberrant expression of miRNAs and underlying mechanisms, consequent effects due to miRNAs dysregulation, and accountable target genes in GC. Besides, potential clinical applications are also highlighted.
Actin remodeling, the synaptic tag and the maintenance of synaptic plasticity
Authors: Pinho Júlia , Marcut Cristina , Fonseca Rosalina 
Published: February 2020

AbstractActivity‐dependent plasticity of synaptic connections is a hallmark of the mammalian brain and represents a key mechanism for rewiring neural circuits during development, experience‐dependent plasticity, and brain disorders. Cellular models of memory, such as long‐term potentiation and long‐term depression, share common principles to memory consolidation. As for memory, the maintenance of synaptic plasticity is dependent on the synthesis of de novo protein synthesis. The synaptic‐tagging and capture hypothesis states that the maintenance of synaptic plasticity is dependent on the interplay between input‐specific synaptic tags and the allocation or capture of plasticity‐related proteins (PRPs) at activated synapses. The setting of the synaptic tag and the capture of PRPs are independent processes that can occur separated in time and different groups of activated synapses. How are these two processes orchestrated in time and space? Here, we discuss the synaptic‐tagging and capture hypothesis in the light of neuronal compartmentalization models and address the role of actin as a putative synaptic tag. If different groups of synapses interact by synaptic‐tagging and capture mechanisms, understanding the spatial rules of such interaction is key to define the relevant neuronal compartment. We also discuss how actin modulation can allow an input‐specific capture of PRPs and try to conciliate the temporal dynamics of synaptic actin with the maintenance of plasticity. Understanding how multiple synapses interact in time and space is fundamental to predict how neurons integrate information and ultimately how memory is acquired.