bluuebunny/crossref_metadata_2025_split huggingface dataset:
Computational Approach to Evaluate Eugenol Affinity and Derivatives Empirical Against Cu(II)
Authors: Djunaidi Muhammad Cholid , Astuti Tantri Nevi , Siahaan Parsaoran 
Published: December 2019

A computational approach to assess the emperical results of eugenol affinity, eugenoxy acetate (EOA), and pyridine methyl eugenoxy acetate (PMEOA) against Cu2+has been done. This research aims to determine the effects of the functional groups (−OH, −COOH, and −N) on eugenol and their derivatives on the selectivity of Cu2+adsorption experimentally and to calculate the energy interaction between eugenol compounds and derivatives with Cu2+. The experimental approach was carried out by solvent extraction method, using 10 mL of Cu2+10 ppm solution along with 0.3089 mmol of eugenol, EOA and PMEOA. The remaining concentration of Cu2+metal after extraction in the water phase was measured using an Atomic Absorption Spectrophotometer (AAS). Assessments of the Cu2+metal interaction with eugenol, EOA and PMEOA compounds were carried out using the ab initio method with 6-31G** basis set to predict the interaction energy. The results showed that pyridine methyl eugenoxy acetate (PMEOA) can separate Cu2+better than eugenol and EOA with extraction efficiency (% E) = 78.76%. The calculation results of Cu2+metal interactions with eugenol, EOA, and PMEOA compounds found that PMEOA has the lowest energy of interaction compared to eugenol and EOA with Cu2+metal.
ANALISIS STILISTIKA DAN NILAI PENDIDIKAN KARAKTER DALAM LIRIK-LIRIK LAGU FOURTWNTY ALBUM LELAKU SERTA RELEVANSINYA SEBAGAI BAHAN AJAR BAHASA INDONESIA TINGKAT SMA
Authors: Maretta Arina Dicka , Wardani Elisabeth Nugraheni Eko , Anindyarini Atikah 
Published: December 2019

<em>This is descriptive qualitative research using stylistic analysis to describe the existence of language style, diction, image, educational values of the character, and the relevance of the lyrics of Fourtwnty album Lelaku as a teaching material for Indonesian language learning at high school. Data collection techniques use content analysis and interviews. Validity test of data using medhod triangulation techniques and theory. The results of this study indicate (1) the language style dominated by sinpoke, repetition epizeuksis, and symbolic able to create aesthetic effects, typical, and affirmation; (2) diction is dominated by connotative and typical greetings and names that can create beauty and uniqueness; (3) the image is dominated by vision capable of generating the image of the reader; (4) the values of character education are dominated by religious values, communicative, hard work, and peaceful love that is expected to shape the character of the reader; and (5) The lyrics of Fourtwnty's album Lelaku can be used and developed as learning materials of class X Indonesian language especially poetry appreciation material on basic competence 3.8 and 4.8.</em>
Continuous-wave Laser on Er,Yb-Codoped Pentaborate Crystal
Authors: Gorbachenya K. N. , Kisel V. E. , Deineka R. V. , Yasukevich A. S. , Kuleshov N. V. , Maltsev V. V. , Mitina D. D. , Volkova E. A. , Leonyuk N. I. 
Published: December 2019

We report, for the first time to our knowledge, a diode-pumped continuous-wave microchip Er,Yb:YMgB5O10 laser. The purpose of this work was to study the growth technique, spectroscopic properties and continuous-wave laser performance of Er3+,Yb3+:YMgB5O10 novel crystal. Absorption and luminescence spectra as well as kinetics of luminescence decay were studied. Ytterbium-erbium energy transfer efficiency was determined. The output characteristics (output power, slope efficiency, laser wavelength) of Er3+,Yb3+:YMgB5O10 laser were determined.Two intensive absorption bands with peaks centered at 937 nm and 976 nm were observed in the absorption spectra at the wavelength near 1 μm. The maximum value of absorption cross-section was determined to be 1.5·10–20 cm2 at 976 nm for polarization E//Ng . A number of narrow lines were observed in the absorption spectra in the 1425–1575 nm spectral range (transition 4I15/2 → 4I13/2 of erbium ions). The lifetime of the upper laser level 4I13/2 of Er3+ ions was determined to be 390 ± 20 μs. The ytterbium-erbium energy transfer efficiency for YMgB5O10 crystal with 2 at.% of Er3+ and 11 at.% for Yb3+ was close to 84 %. The maximal continuous-wave output power of 0.2 W with slope efficiency of 8 % regarding to absorbed pump power was realized at the wavelength of 1570 nm. With the improvement of cavity parameters the output laser performance of the Er,Yb:YMgB5O10 crystal can be further enhanced.Taking into account high thermal conductivity of ≈ 6.2 W·m–1·K–1, the Er,Yb:YMgB5O10 crystal can be considered as a good gain medium for 1.5 μm lasers for applications in laser rangefinder and LIDAR systems.
Frequency Domain Diagnostics of Transformer Insulation
Authors: Gutten M. , Šebok M. , Korenčiak D. , Brnčal P. , Kubiš M. , Żukowski P. , Koltunowicz T. N. 
Published: December 2019

The first part of paper deals with the base information about diagnostics of power transformers. In this part are presented differently insulating methods, for example method of recovery voltage method, method of polarization and depolarization currents and chromatographic analysis.The second part of paper deals use of method of frequency domain spectroscopy for oil power transformers. This method is used in analysis insulating condition of power transformer with system of oil-paper. It was found, that the results of these tests are highly impacted by the operating temperature during the experimental measurement. Moisture and conductivity between insulating paper and oil in an insulating system are highly dependent from temperature.In the other part, the paper presents experimental results of the frequency diagnostic measurement for a real single-phase traction transformer 110/27 kV at different operating temperatures and states (with oil and without).Finally in the last part, the paper presents comparing frequency insulating measurements among several the same single-phase transformers 110/27 kV.
Model of Thermal Mechanism of Subclass A1 Fire Extinguishing with General Purpose Fire Extinguishing Powder in Non-Stationary Heat Exchange Conditions
Authors: Kitsak A. I. 
Published: December 2019

The aim of the paper was to develop a model of thermal extinguishing mechanism using dry chemical powder taking into account the inertia of heat transfer to powder particles during unsteady heat exchange to identify the optimal conditions for extinguishing of A1 class fires with powders.The method of experimental and mathematical modelling of fire extinguishing process using dry chemical powder with short-term effect on the fire was used to achieve the goal. The experimental dependences of the extinguishing time and unit consumption of the extinguishing powder on the intensity of the powder supply to the combustion zone in extinguishing of subclass A1 fire in same area and in a limited volume were obtained. The mathematical model of a thermal extinguishing mechanism using dry chemical powder has been developed, taking into account the inertia of heat transfer to powder particles during unsteady heat exchange.Analysis of the regularities of extinguishing the subclass A1 fire using powder with a short feeding it into the fire indicates the presence of optimum values of unity consumption of powder on the fire from the intensity of feeding it into the fire. The presence of this optimum is due to the inertia of extinguishing the subclass A1 fire using powder due to the finiteness of the heat transfer time to the particles of the extinguishing powder and the limited time of interaction of particles with the combustible material.The theoretical analysis of the fire extinguishing process over the area taking into account the inertia of heat transfer to the powder particles at non-stationary heat exchange are carried out. The results of the analysis are in qualitative agreement with the results of the experimental study of the regularities of extinguishing of model fire foci of subclass A1 with General-purpose fire extinguishing powder.
Application of information technologies for automation management of environmental activity
Authors: Rybak V. A. , Grib A. D. , Ahmad Sh. 
Published: December 2019

The article deals with the problem of assessing the conformity of various resource-intensive industries and enterprises with the principles of environmental management. On the basis of existing systems, a new model of monitoring the implementation of innovative projects within the framework of the State Innovative Development Program of the Republic of Belarus is proposed, which includes five main levels: implementing organizations, Government customers, GU BelISA, State Committee on Science and Technology of the Republic of Belarus, Council of Ministers of the Republic Belarus, Administration of the President of the Republic of Belarus. This model is programmatically implemented using the latest information technologies and is presented in the form of a web portal for collecting, storing, processing and displaying relevant subject data.Generally developed approaches and automated tools have been tested and modified for the dairy industry, since this sector of the national economy is one of the most significant for the Republic of Belarus in terms of production. In this direction, indicators of waste-free, resource-intensive, energy-intensive and earth-intensiveness were proposed, which were reduced to a single integral index by the method of logarithmic averaging, which made it possible to increase the sensitivity to changes in terms compared with the arithmetic and geometric averages. To automate the process of collecting, storing, processing and displaying this information, a software tool has also been developed that allows to automate environmental management. The ultimate goal of this tool is to support decision making when choosing a project that is more environmentally friendly. For industries and technologies that do not fall into the category of rational from the point of view of environmental management, a mathematical model of their optimization has been developed with the selection of specific environmental protection measures. The economic efficiency of the developed automation tools was calculated using the methodology for determining the prevented environmental damage and summed up 28303 rubles per year for the company under study.
The Prevalence of Lower Urinary Tract Symptoms Based on Individual and Clinical Parameters in Patients with Multiple Sclerosis
Authors: Nazari Fatemeh , Shaygannejad Vahid , Sichani Mehrdad Mohammadi , Gharaagozlou Marjan Mansourian , Hajhashemi Valiollah 
Published: December 2019

Abstract
Background: Most patients with multiple sclerosis (MS) suffer from bladder dysfunction during the course of the disease. This study was conducted to examine the prevalence of these complications among patients with MS.
Methods: This cross-sectional study was performed on 602 patients with MS who referred to the neurology clinics of Kashani and Alzahra Hospitals affiliated to Isfahan University of Medical Sciences, Isfahan, Iran. Multistage random cluster sampling was performed and the informed consent form was signed by the subjects. Then, all the data were collected through interviews using the Lower Urinary Tract Symptom Score (LUTSS) developed in accordance with the definitions presented by the International Continence Society (ICS) and the International Prostate Symptom Score (I-PSS) and DASS-21 questionnaire. The data were analyzed using descriptive and inferential statistical tests in SPSS.
Results: The prevalence rate of lower urinary tract symptoms (LUTS) was 87.6% among all the subjects, with a similar rate among women (88.0%) and men (86.0%). There was a significant difference between men and women in terms of the prevalence of stress urinary incontinence (SUI), intermittent urine flow, hesitancy, straining, and dribbling (P < 0.050). There was no significant difference between women and men in terms of the prevalence of other symptoms (P > 0.050). A significant difference was observed in the degree of LUTS with age, marital status, marriage duration, education, illness duration, clinical course, disability, anxiety, depression, and stress (P < 0.05). Moreover, logistic regression analysis revealed that there was a higher probability of a urinary problems among patients with MS and a high EDSS score [0.67 (0.507-0.903), P = 0.008].
Conclusions: A high prevalence of LUTS was found among patients with MS. There was a higher probability of a urinary tract problem among patients with MS and a high EDSS score. Therefore, it is recommended that the health system take the necessary measures regarding timely detection and treatment of LUTS among these patients in order to prevent secondary outcomes and improve the quality of life (QOL) of patients with MS.
Keywords: Multiple sclerosis, prevalence, urinary symptoms
Neonatal Near-Misses in Ghana: A Prospective, Observational, Multi-Center Study
Authors: Bakari Ashura , Bell April J. , Oppong Samuel A. , Bockarie Yemah , Wobil Priscilla , Plange-Rhule Gyikua , Goka Bamenla Q. , Engmann Cyril M , Adanu Richard M , Moyer Cheryl A 
Published: December 2019

Abstract
Background: For every newborn who dies within the first month, as many as eight more suffer life-threatening complications but survive (termed ‘neonatal near-misses’ (NNM)). However, there is no universally agreed-upon definition or assessment tool for NNM. This study sought to describe the development of the Neonatal Near-Miss Assessment Tool (NNMAT) for low-resource settings, as well as findings when implemented in Ghana.
Methods: This prospective, observational study was conducted at two tertiary care hospitals in southern Ghana from April – July 2015. Newborns with evidence of complications and those admitted to NICUs were screened for inclusion using the NNMAT. Incidence of suspected NNM at enrollment and confirmed near-miss (surviving to 28 days) was determined and compared against institutional neonatal mortality rates. Suspected NNM cases were compared with newborns not classified as a suspected near-miss, and all were followed to 28 days to determine odds of survival. Confirmed near-misses were those identified as suspected near-misses at enrollment who survived to 28 days. The main outcome measures were incidence of NNM, NNM:mortality ratio, and factors associated with NNM classification.
Results: Out of 394 newborns with complications, 341 (86.5%) were initially classified as suspected near-misses at enrollment using the NNMAT, with 53 (13.4%) being classified as a non-near-miss. At 28-day follow-up, 68 (17%) had died, 52 (13%) were classified as a non-near-miss, and 274 were considered confirmed near-misses. Those newborns with complications who were classified as suspected near-misses using the NNMAT at enrollment had 12 times the odds of dying before 28 days than those classified as non-near-misses. While most confirmed near-misses qualified as NNM via intervention-based criteria, nearly two-thirds qualified based on two or more of the four NNMAT categories. When disaggregated, the most predictive elements of the NNMAT were gestational age < 33 weeks, neurologic dysfunction, respiratory dysfunction, and hemoglobin < 10 gd/dl. The ratio of near-misses to deaths was 0.55 : 1, yet this varied across the study sites.
Conclusions: This research suggests that the NNMAT is an effective tool for assessing neonatal near-misses in low-resource settings. We believe this approach has significant systems-level, continuous quality improvement, clinical and policy-level implications.
A simple strategy based on fibers coated with surfactant-functionalized multiwalled carbon nanotubes to improve the properties of solid-phase microextraction of phenols in aqueous solution
Authors: zhou xueqing , Xie Yanli , Zhao Zhendong , Fu Wenyan 
Published: December 2019

Abstract
A functionalized multiwalled carbon nanotube (MWCNT)-coated solid-phase microextraction (SPME) fiber was developed for concentrating analytes in aqueous samples. Sodium deoxycholate(NaDC) was used as a dispersing agent for non-covalent modification of MWCNTs. The coating showed porous structure and large adsorption capacity. To investigate the capability of this MWCNTs/NaDC SPME fiber, it was applied to the analysis of phenols in aqueous solution. After extraction, the analytes were desorbed in an acetonitrile–water solution and analyzed using high-performance liquid chromatography. The MWCNTs/NaDC fiber exhibited good analytical performance, and fine preparation reproducibility was obtained with the relative standard deviations (RSDs) ranging from 4.9% to 10.2% (n = 6) in one batch, from 5.7% to 11.9% (n = 3) among different batches. Under the optimum extraction conditions, the detection limits were 0.15–0.30 ng/mL(S/N=3), the linear detection ranges were 1–100 ng/mL (R2≥0.9997) for these analytes, and good recoveries(80.3%–95.4%) were obtained for the spiked samples. This is a simple and accurate pretreatment method for the analysis of phenols in aqueous samples.
Aim2Be an mHealth intervention for children with overweight and obesity: Study protocol for a randomized controlled trial
Authors: Mâsse Louise C , Vlaar Janae , Macdonald Janice , Bradbury Jennifer , Warshawski Tom , Buckler E Jean , Hamilton Jill , Ho Josephine , Buchholz Annick , Morrison Katherine M , Ball Geoff DC 
Published: December 2019

Abstract
Background: The prevalence of overweight and obesity remains high in Canada, and the current standard for the treatment of childhood obesity is in-person family-based multidisciplinary interventions that target lifestyle behaviours (e.g. diet, physical activity, and sedentary behaviours). These programs are costly to operate, have limited success, and report recruitment and retention challenges. With recent advances in technology, mobile health or mHealth has presented as a viable alternative to in-person interventions for behavior change, especially with teens. Purpose: The primary aim of this study is to test the efficacy of Aim2Be, a gamified app based on behavior change theory with health coaching at improving weight outcomes (i.e., decrease in zBMI) and lifestyle behaviours (i.e. improve dietary quality, increase fruit and vegetable intake, reduce sugar-sweetened beverage intake, increase physical activity, and reduce screen time) among 10-17 year old children with overweight or obesity versus their peers randomized into a waitlist control condition. The secondary aims of this study are to: 1) test whether supplementing the Aim2Be program with health coaching increases adherence; and 2) examine the mediators and moderators of adherence to the Aim2Be intervention. Methods: We will employ a randomized controlled trial design and recruit 200 child and parent dyads to participate in the study (2019-2020). Participants will be recruited from Canadian pediatric weight management clinics, and through online advertisements. Child participants must be between the ages of 10-17 years, have overweight or obesity, be able to read English at a grade 5 level, and have a mobile phone or home computer with internet access. Following baseline data collection, participants will be randomized into intervention and waitlist control groups. Intervention participants will receive access to Aim2Be, with access to health coaching. Following 3-month data collection, the control group will gain access to Aim2Be; with no access to health coaching. Participants will control their frequency and duration of app usage to promote autonomy. Discussion: Findings from this study will determine the efficacy of using Aim2Be in improving child weight outcomes and lifestyle behaviours and guide future mHealth interventions for pediatric weight management.
Major amputations in type 2 diabetes between 2001 and 2015 in Spain: Regional differences.
Authors: Rodríguez-Pérez María Cristo , Chines Chiara , García Arturo J Pedrero , Sousa Djeniffer , Fernández Francisco J Cuevas , Marcelino-Rodríguez Itahisa , Coello Santiago Domínguez , de León Antonio Cabrera 
Published: December 2019

Abstract
Background: To analyze the trend of lower extremity major amputations (MA) among patients with type 2 diabetes mellitus (T2DM) in the Regions of Spain from year 2001 until 2015.
Methods : Descriptive study of 40,392 MA. Data were obtained from the national hospital discharge database in patients with T2DM. The incidence rate was calculated in each Region, in addition to the incidence ratios (IR) between annual incidence and incidence of the year 2001. The length of hospital stays and mortality risks were analyzed adjusting regression models for sex, age and smoking.
Results: The major amputations incidence rate per 100,000 persons-year was 0.48 in Spain; Canary Islands showed the highest incidence (0.81). The trend was a slight decrease or stability of the incidence in all Regions except in the Canary Islands (IR 2015 = 2.0 [ CI95%= 1.5, 2.6]) and in Madrid (IR 2015 = 0.1 [CI95%=0.1, 0.2]). Mortality after major amputations was 10% in Spain; Cantabria suffered the highest risk of death [1.7 (CI95%=1.4; 2.1), p<0.001] and La Rioja the lowest risk (0.5 [CI95%=0.2; 0.9]; p = 0.026). The longest hospital stay was registered in the Canary Islands [(CI95%=11.4;13.3], p<0.001)], and the shortest in the Valencian Community [(CI95%= -7.3; -5.8), p<0.001)].
Conclusion: MA in T2DM followed a growing trend in the Canary Islands, which diverged from the downward trend in Spain. The variability of mortality and hospital stay, suggest to review the clinical management in some Regions. Sudden incidence decrease in Madrid suggests checking the record procedures of hospital discharges.
Association between Vitamin D receptor (VDR) polymorphisms and the risk of Multiple sclerosis (MS): An updated meta-analysis
Authors: Imani Danyal , Razi Bahman , Motallebnezhad Morteza , rezaei Ramazan 
Published: December 2019

Abstract
Background

The association between the vitamin D receptor ( VDR ) gene polymorphism and the risk of Multiple sclerosis (MS) has been evaluated in several studiese. However, the findings were inconsistent and inconclusive.Methods

All relevant studies reporting the association between the FokI (rs2228570) or/and TaqI (rs731236) or/and BsmI (rs1544410) or/and ApaI (rs7975232) polymorphisms of the VDR and susceptibility to multiple sclerosis published up to September 2019 were identified by comprehensive systematic database search in web of science, Scopus, and PubMed.Results

A total of 30 case–control studies were included in this meta-analysis. The overall results suggested a significant association between TaqI gene polymorphism and MS risk under heterozygote contrast (OR = 1.27, 95%CI = 1.01–1.59, REM). Moreover, the pooled results of subgroup analysis decline presence of significant association under all defined genotype model. In subgroup analysis, BsmI gene polymorphism was associated with increased risk of MS under the recessive model in Asian population. In other hand, ApaI gene polymorphism was associated with decreased risk of MS under recessive and homozygote contrast (aa vs AA) models in Asian population.Conclusions

This meta-analysis suggested a significant association between TaqI gene polymorphism and MS susceptibility. Furthermore, BsmI gene polymorphism was associated with an increased risk of MS in Asian population. In contrast, ApaI gene polymorphism was associated with a decreased risk of MS in Asian population. Future large scale studies on gene–environment and gene– gene interactions are required to estimate related risk factors and assist early diagnosis of patients at high risk for MS.