bluuebunny/crossref_metadata_2025_split huggingface dataset:
Geospatial analysis of environmental noise levels in a residential area in Lagos, Nigeria
Authors: Alani Rose Anthony , Ogunmoyela Olajomi Mary , Okolie Chukwuma John , Daramola Olagoke Emmanuel 
Published: November 2020

AbstractNoise is an inevitable part of daily life and has been identified as a cause of several health deficiencies across the world. It has increasingly become a significant concern on the health and well-being of people. Studies are required to advance knowledge on the sources and impacts of noise in residential neighbourhoods of Lagos State, Nigeria. Therefore, this study assesses the spatial variation of noise levels within a section of the Festac residential area in Lagos in line with noise limits specified by the World Bank Group International Finance Corporation (IFC) Environmental, Health, and Safety (EHS) Guidelines and the Nigerian National Environmental Standards and Regulations Enforcement Agency (NESREA) Noise Standards and Control guidelines for community noise. Data for this research come from a field study comprising measurements of noise levels from 6 observation stations and questionnaire survey with 200 respondents. The criteria for siting the stations was based on factors such as proximity to the roadside, land use and population density, while the questionnaire was administered at random to assess the peoples’ level of awareness on the sources and effects of noise. A digital sound level meter was used to measure noise level variations over a period of 3 weeks for morning, afternoon and evening periods. The measured noise levels were analysed using Analysis of Variance (ANOVA) statistics and the Kriging Geostatistical interpolation technique. Also, logistic regression was used to determine the relationship between the respondents’ perceptions to noise and noise levels. The results indicated that the mean noise levels were within the approximate range of 53.5 – 94.0dBA over the entire period. The highest mean noise levels occurred in the north-western part of the study area where a bus park is present. In general, the noise levels in the area surpass the recommended noise limit of 55dBA, and the logistic regression showed that morning, afternoon and evening mean noise levels were significant predictors of noise variation as perceived by the dwellers. Proper legislation to regulate human activities with respect to noise generation is highly recommended to the local, state and national legislators.
Assessment of stakeholders’ contributions to livestock development in Delta State, Nigeria: Rural infrastructure intervention
Authors: Ovharhe Oghenero Joseph , Okpara Oghenesuvwe , Asedegbega Caritas 
Published: November 2020

AbstractThe study assessed the contributions of stakeholders to livestock development through provision of infrastructure to rural areas of Delta State, Nigeria. The objectives were to describe the socio-economic characteristics of respondents, appraise the role of external stakeholders in livestock development, verify any existing relationship between livestock development and rural development indicators and identify the challenges faced by respondents. A purposive and simple random sampling techniques were used to select the three major towns and 180 respondents. Data were collected by questionnaire and subjected to descriptive and inferential statistics. Result obtained showed that majority of the respondents were males (68.3%) with higher national diplomat (HND)/First degree (33.3%) and have a mean age of 42 years. The first four highest external stakeholders were skills training and entrepreneurship programme (94%), youth agricultural entrepreneurs programme (90.6%), job creation agency (89.4%) and FADAMA (80.0%) that promoted livestock development. A significant relationship was observed based on infrastructural contributions to livestock development (p< 0.05) among the variables: market, water project, market and roads. Serious challenges included high cost of feed facilities (mean = 3.69) and insufficient power supply (mean = 3.49). The study concluded that the more available the rural infrastructure intervention, the more developed the livestock sector. The study recommended that stakeholders should make their extension agent available to livestock farmers.
What is in a Name? Rahab, the Canaanite, and the Rhetoric of Liberation in the Hebrew Bible
Authors: Kozlova Ekaterina E. 
Published: November 2020

AbstractAs many native women in conquest accounts (historical and fictional), Rahab in Joshua 2 is often “hypersexualised” in biblical scholarship. One narrative detail gratuitously read in sexual terms is her name, Rahab, which is linked to the idea of “broadness.” Traditionally, “Rahab” is read as a harsh nickname highlighting the woman’s occupation, prostitution, or as a reference to her genitals. Against these readings, this discussion considers the language of “broadness” in biblical profiles of the Promised Land and the Torah, key motifs from Joshua 1–2, and demonstrates that the trope of “broadness/spaciousness” constitutes the rhetoric of liberation in the Hebrew Bible. That is, God is often cast as someone who brings afflicted/landless people to a broad locale or “broadens/enlarges” their hearts through his Torah. Since Rahab is linguistically and thematically linked to these acts, it is argued that through her Joshua 2 offers a midrash on Joshua 1. That is, from within Canaan, her name reverberates God’s earlier promises to Israel (“he [God] has created a wide expanse”) and she, herself, models a life informed by the Torah (vv. 9–12). Arguably, through her, Joshua 2 also offers a microcosm of YHWH’s own nature and modus operandi in the world.
Influence of modern magnetic and insulation materials on dimensions and losses of large induction machines
Authors: François Balavoine , Bertrand Cassoret , Cristian Demian , Raphaël Romary , Christophe Debendere 
Published: November 2020

AbstractThe aim of this study is to present the possibilities of reducing the size of large induction motors with new electrical materials taken into account of thermal constraints. This study highlights the possibilities of reducing losses, increasing the efficiency, and decreasing the weight, by taking different grades of materials. A nonlinear multiobjective optimization is used to determine the best solution, by varying the internal and external geometric parameters.
Convenient and highly sensitive detection of Cu2+ using chitosan solid film with g-C3N4 nanosheets
Authors: Liu Jing , Wang Shan 
Published: November 2020

Abstract
A solid fluorescence sensor composed of g-C3N4 nanosheets and chitosan solid film was fabricated by electrostatic interaction. The g-C3N4 nanosheet/chitosan solid film showed selectivity and sensitivity to Cu2+ which was higher than that of other metal ions in common use. Cu2+ ions were found to efficiently bind and quench the fluorescence of the g-C3N4 nanosheet/chitosan solid film. The absorption band of the g-C3N4 nanosheet/chitosan solid film was at 240 nm in the presence of Cu2+, and the maximum emission peak was at 380 nm. Copper ion concentrations were between 0 and 3.1 × 10−5 mol/L at pH 7, the detection limit is 5 nM, compared with previous reports, it was much lower than before. Good linear relationships existed between the metal ion concentration and fluorescence intensity of g-C3N4 nanosheets in the quenching and recovering processes. This is the first study to report on the detection of Cu2+ by utilizing g-C3N4 nanosheet/chitosan composite film. The as-prepared films were conveniently prepared, easy to operate, and recyclable, as well as sensitive and selective to detect Cu2+ in water. All these features indicate the sensor’s potential application in disease diagnosis.
Development of a radiochemical method for extraction chromatographic separation of Pb and Bi radioisotopes of forensic and environmental interest
Authors: Attallah Mohamed F. , Rizk Hoda E. , El Afifi El Sayed M. 
Published: November 2020

Abstract
This work describes the purification and separation of some radionuclides of 210Pb and/or 210Bi that might be used in calibration of nuclear spectroscopic instruments for forensic purposes and environmental studies. The retention and desorption investigations have been done by Dowex HCR-S/S resin as the cationic exchanger by batch mode. Full retention of metal ions was achieved in 0.1 M HNO3 solution after an equilibration period of 2 h at room temperature. The uptake of Pb and Bi is reached to more than 95 and 85%, respectively. Desorption studies by several reagents indicated that 1 M citric acid and ammonium acetate are efficient to elute and separate Bi and Pb. Taking into consideration all the above obtained results, column applications packed by the Dowex HCR-S/S resin were carried out to separate 214,210Pb and 214Bi radionuclides either in TENORM-concentrate or old certified reference of 226Ra solution. The column application results revealed that the recovery of Pb and Bi radionuclides was ∼93%. In the radiochemical part, the eluted Bi was impure due to presence of 23% Pb. In contrast, 70% of pure Pb was obtained. Thus, the radionuclides 210Pb can be recovered from several waste resources by this method. It can be concluded that the Dowex HCR resin can be an alternative economic material that could be used to produce 210Pb from the TENORM wastes generated from some strategic industries.
Alpha spectrometric characterization of thin 233U sources for 229(m)Th production
Authors: Haas Raphael , Hufnagel Michelle , Abrosimov Roman , Düllmann Christoph E. , Krupp Dominik , Mokry Christoph , Renisch Dennis , Runke Jörg , Scherer Ulrich W. 
Published: November 2020

Abstract
Four different techniques were applied for the production of 233U alpha recoil ion sources, providing 229Th ions. They were compared with respect to a minimum energy spread of the 229Th recoil ions, using the emitted alpha particles as an indicator. The techniques of Molecular Plating, Drop-on-Demand inkjet printing, chelation from dilute nitric acid solution on chemically functionalized silicon surfaces, and self-adsorption on passivated titanium surfaces were used. All fabricated sources were characterized by using alpha spectrometry, radiographic imaging, and scanning electron microscopy. A direct validation for the estimated recoil ion rate was obtained by collecting 228Th recoil ions from 232U recoil ion sources prepared by self-adsorption and Molecular Plating. The chelation and the self-adsorption based approaches appear most promising for the preparation of recoil ion sources delivering monochromatic recoil ions.
Synthesis of ZnO and ZnO/PVA nanocomposite using aqueous Moringa Oleifeira leaf extract template: antibacterial and electrochemical activities
Authors: Dejen Kindnew Demssie , Zereffa Enyew Amare , Murthy H C Ananda , Merga Andualem 
Published: November 2020

Abstract
The application of flexible polymer nanocomposites for food packaging to inactivate microorganisms associated with foods is the demand of the present-day food industry to assure quality throughout the packaging operation. The utilization of polyvinyl alcohol (PVA) assisted zinc oxide nanocomposite for food stuff packaging has been very attractive in the recent past. Nanostructured ZnO was synthesized at optimized pH (10.5) from different ratios of zinc acetate and Moringa oleifeira leaf extract (1:7, 1:3, 1:1 and 3:1). ZnO coated polyvinyl alcohol (ZnO/PVA) nanocomposites were prepared from 5, 9, 13 and 16% by wt of ZnO and PVA using solution casting method. The thermal stability of ZnO synthesized with 1:1 ratio at pH 10.5 was investigated with TGA/DTA. The analytical techniques such as X-ray diffraction (XRD), ultra-violate visible analysis (UV-Vis), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscope (SEM) were used for the characterization of the synthesized ZnO and ZnO/PVA nanocomposites (NCs). The antibacterial activity of the synthesized ZnO and ZnO/PVA NCs were evaluated against gram negative E. coli and gram positive S. aureus bacteria. The electrochemical stability of ZnO/PVA NCs was also investigated by cyclic voltammetric (CV) method. The thermogram of ZnO indicated that the oxide was found to be stable even beyond 500°C. The SEM analysis revealed rod shaped morphology for synthesized ZnO from 1:1 ratio at pH 10.5. But the nanocomposite prepared with 5% of ZnO of (1:1) at the same pH exhibited uniformly dispersed rod-shaped particle on the surface as well as in matrix of polyvinyl alcohol film. According to XRD result, ZnO synthesized with more percentage of plant extract resulted in the small size crystallites while that with low percentage of plant extract resulted in the larger crystallite size. The antibacterial inhibition efficiency of ZnO/PVA NCs was better and found to increase with increase in the amount of ZnO.
Prevalence of sports-related spinal injury stratified by competition level and return to play guidelines
Authors: Fiani Brian , Runnels Juliana , Taylor Ashley , Sekhon Manraj , Chacon Daniel , McLarnon Michael , Houston Rebecca , Vereecken Sasha 
Published: November 2020

Abstract
Spinal injury is among the most severe and feared injuries an athlete may face. We present an up-to-date review of the recent literature, stratifying recommendations based on injury location (cervical, thoracic, and lumbar spine) and type, as well as, the level of competitive play (high school, collegiate, professional). A literature search was completed to identify all publications reporting return to play guidelines for athletic injuries or injury-related surgery irrespective of the study design. Publication dates were not restricted by year. Search terms used included “return to play” and “spinal injury” on National Library of Medicine (PubMed) and Google Scholar. Selection criteria for literature included axial spine injury guidelines for athletic participation post-injury or post-surgery. Literature found from the search criteria was sorted based on level of competition and location of axial spine injury involved. It was found that professional athletes are more likely to suffer severe spinal injuries, require surgery, and necessitate a longer return to play (RTP), with high school and college athletes usually returning to play within days or weeks. Injuries occur mainly within contact sports and concordance exists between initial and subsequent spinal injuries. Adequate rest, rehabilitation, and protective equipment alongside the education of athletes and coaches are recommended. In conclusion, a multidisciplinary approach to patient management is required with consideration for the emotional, social, and perhaps financial impact that spinal injury may have upon the athlete. Consensus from the literature states that in order for an athlete to safely return to play, that athlete should not be actively suffering from pain, should have a full range of motion, and complete return of their strength in the absence of neurological deficit.
Induced drift of scroll waves in the Aliev–Panfilov model and in an axisymmetric heart left ventricle
Authors: Pravdin Sergei F. , Epanchintsev Timofei I. , Nezlobinskii Timur V. , Panfilov Alexander V. 
Published: November 2020

AbstractThe low-voltage cardioversion-defibrillation is a modern sparing electrotherapy method for such dangerous heart arrhythmias as paroxysmal tachycardia and fibrillation. In an excitable medium, such arrhythmias relate to appearance of spiral waves of electrical excitation, and the spiral waves are superseded to the electric boundary of the medium in the process of treatment due to high-frequency stimulation from the electrode. In this paper we consider the Aliev–Panfilov myocardial model, which provides a positive tension of three-dimensional scroll waves, and an axisymmetric model of the left ventricle of the human heart. Two relations of anisotropy are considered, namely, isotropy and physiological anisotropy. The periods of stimulation with an apical electrode are found so that the electrode successfully entrains its rhythm in the medium, the spiral wave is superseded to the base of the ventricle, and disappears. The results are compared in two-dimensional and three-dimensional media. The intervals of effective stimulation periods are sufficiently close to each other in the two-dimensional case and in the anatomical model. However, the use of the anatomical model is essential in determination of the time of superseding.
Spatially averaged haemodynamic models for different parts of cardiovascular system
Authors: Simakov Sergey S. 
Published: November 2020

AbstractThis paper revisits the usage of spatially averaged haemodynamic models such as non-stationary 1D/0D in space and stationary 0D in space models. Conditions of equivalence between different 1D model formulations are considered. The impact of circular and elliptic shapes of the tube cross-section on the friction term and the tube law is analyzed. Finally, the relationship between 0D lumped and 1D models is revealed.
The Net Neutrality Debate is Outdated: Time for a New Wider View
Authors: Glass Victor 
Published: November 2020

AbstractIn 2008, former FCC Commissioner McDowell warned that Net Neutrality regulatory rulings could change every two to four years with election results His prediction was prescient. The democrat-led Wheeler Commission used technical definitions of telecommunication and information services to place all carriers under light touch Title II common carrier regulations. The succeeding republican-led Pai Commission rescinded the Wheeler Commission’s Order. The problem with both orders is that telecommunications and information services as separate categories are losing relevance in the online economy. A new approach to Net Neutrality policy is introduced that recognizes the emergence of large platforms and Internet service providers (ISPs) competing against each other. The recommendation is to break regulatory silos and develop a holistic oversight of the online ecosystem that examines in an integrated way anticompetitive behavior associated with communication, information, and services.
The association between selected genetic variants and individual differences in experimental pain
Authors: Lie Marie Udnesseter , Winsvold Bendik , Gjerstad Johannes , Matre Dagfinn , Pedersen Linda M. , Heuch Ingrid , Zwart John-Anker , Nilsen Kristian Bernhard 
Published: November 2020

Abstract

Objectives
The underlying mechanisms for individual differences in experimental pain are not fully understood, but genetic susceptibility is hypothesized to explain some of these differences. In the present study we focus on three genetic variants important for modulating experimental pain related to serotonin (SLC6A4 5-HTTLPR/rs25531 A>G), catecholamine (COMT rs4680 Val158Met) and opioid (OPRM1 rs1799971 A118G) signaling. We aimed to investigate associations between each of the selected genetic variants and individual differences in experimental pain.

Methods
In total 356 subjects (232 low back pain patients and 124 healthy volunteers) were genotyped and assessed with tests of heat pain threshold, pressure pain thresholds, heat pain tolerance, conditioned pain modulation (CPM), offset analgesia, temporal summation and secondary hyperalgesia. Low back pain patients and healthy volunteers did not differ in regards to experimental test results or allelic frequencies, and were therefore analyzed as one group. The associations were tested using analysis of variance and the Kruskal-Wallis test.

Results
No significant associations were observed between the genetic variants (SLC6A4 5-HTTLPR/rs25531 A>G, COMT rs4680 Val158Met and OPRM1 rs1799971 A118G) and individual differences in experimental pain (heat pain threshold, pressure pain threshold, heat pain tolerance, CPM, offset analgesia, temporal summation and secondary hyperalgesia).

Conclusions
The selected pain-associated genetic variants were not associated with individual differences in experimental pain. Genetic variants well known for playing central roles in pain perception failed to explain individual differences in experimental pain in 356 subjects. The finding is an important contribution to the literature, which often consists of studies with lower sample size and one or few experimental pain assessments.
Symptoms of central sensitization in patients with inflammatory bowel diseases: a case-control study examining the role of musculoskeletal pain and psychological factors
Authors: Falling Carrie , Stebbings Simon , Baxter G David , Siegel Corey A , Gearry Richard B , Nijs Jo , Mani Ramakrishnan 
Published: November 2020

Abstract

Objectives
Musculoskeletal (MSK) pain is a common complaint in patients with inflammatory bowel diseases (IBD). MSK pain in IBD has previously demonstrated association with symptoms of central sensitization; however it is uncertain whether these symptoms are influenced simply by the presence of MSK pain and/or IBD. Primary aim of this study was to investigate whether symptoms of central sensitization differed across three groups: IBD patients with and without MSK pain and healthy controls. Secondary aim was to investigate between-group differences for measures of somatosensory functioning.

Methods
Cross-sectional study was performed on adults with IBD. Assessments included: central sensitization inventory (CSI), pressure pain threshold, temporal summation, conditioned pain modulation, perceived stress, affect style, anxiety, depression, and pain catastrophizing. One-way analyses of variance and covariance were used to investigate between-group differences for measures of central sensitization and potential confounding by psychological factors.

Results
Study participants (n=66) were age/gender matched across three study groups. Between-group differences were solely demonstrated for CSI scores [F(2,63)=19.835, p<0.001, r=0.62], with IBD patients with MSK pain demonstrating the highest CSI scores and healthy controls the lowest. After controlling for individual psychological features, post hoc comparisons indicated that CSI scores were significantly different between-groups (p≤0.025) after controlling for most psychological variables, with the exception of perceived stress (p=0.063) and pain catastrophizing (p=0.593).

Conclusions
IBD patients as a whole demonstrated significantly greater symptoms of central sensitization compared to healthy controls. However, IBD patients with persistent MSK pain demonstrated the greatest symptoms of central sensitization compared to patients without MSK pain and healthy controls. Between-group differences for CSI in IBD patients with MSK were not confounded by psychological features.

Implications
Study results indicate that persistent MSK pain in IBD represents patients with greater central sensitization symptomology. This increased symptomology is suggestive of underlying mechanisms related to central sensitization, highlighting patient potentially at risk for worse pain experiences.