bluuebunny/crossref_metadata_2025 huggingface dataset:
Iterative Prototyping of Urban CoBuilder: Tracking Methods and User Interface of an Outdoor Mobile Augmented Reality Tool for Co-Designing
Authors: Imottesjo Hyekyung , Thuvander Liane , Billger Monica , Wallberg Peter , Bodell Gustav , Kain Jaan-Henrik , Nielsen Stig Anton
Published: June 2020

This research presents results from a study developing a smartphone app, Urban CoBuilder, in which citizens can collaboratively create designs for urban environments using augmented reality technology and game mechanics. Eight prototypes were developed to refine selected design criteria, including tracking strategies, design elements, user experience and the interface with game mechanics. The prototypes were developed through an iterative design process with assessments and incremental improvements. The tracking was especially challenging and using multiple bitonal markers combined with the smartphone’s gyroscope sensor to average the user position was identified as the most suitable strategy. Still, portability and stability linked to tracking need to be improved. Design elements, here building blocks with urban functions textures, were realistic enough to be recognizable and easy to understand for the users. Future studies will focus on usability tests with larger user groups.
Interference on Iodine Uptake and Human Thyroid Function by Perchlorate-Contaminated Water and Food
Authors: Lisco Giuseppe , De Tullio Anna , Giagulli Vito Angelo , De Pergola Giovanni , Triggiani Vincenzo
Published: June 2020

Background: Perchlorate-induced natrium-iodide symporter (NIS) interference is a well-recognized thyroid disrupting mechanism. It is unclear, however, whether a chronic low-dose exposure to perchlorate delivered by food and drinks may cause thyroid dysfunction in the long term. Thus, the aim of this review was to overview and summarize literature results in order to clarify this issue. Methods: Authors searched PubMed/MEDLINE, Scopus, Web of Science, institutional websites and Google until April 2020 for relevant information about the fundamental mechanism of the thyroid NIS interference induced by orally consumed perchlorate compounds and its clinical consequences. Results: Food and drinking water should be considered relevant sources of perchlorate. Despite some controversies, cross-sectional studies demonstrated that perchlorate exposure affects thyroid hormone synthesis in infants, adolescents and adults, particularly in the case of underlying thyroid diseases and iodine insufficiency. An exaggerated exposure to perchlorate during pregnancy leads to a worse neurocognitive and behavioral development outcome in infants, regardless of maternal thyroid hormone levels. Discussion and conclusion: The effects of a chronic low-dose perchlorate exposure on thyroid homeostasis remain still unclear, leading to concerns especially for highly sensitive patients. Specific studies are needed to clarify this issue, aiming to better define strategies of detection and prevention.
Fruit and Vegetable Incentive Programs for Supplemental Nutrition Assistance Program (SNAP) Participants: A Scoping Review of Program Structure
Authors: Engel Katherine , Ruder Elizabeth H.
Published: June 2020

The low intake of fruits/vegetables (FV) by Supplemental Nutrition Assistance Program (SNAP) participants is a persistent public health challenge. Fruit and vegetable incentive programs use inducements to encourage FV purchases. The purpose of this scoping review is to identify structural factors in FV incentive programs that may impact program effectiveness, including (i.) differences in recruitment/eligibility, (ii.) incentive delivery and timing, (iii.) incentive value, (iv.) eligible foods, and (v.) retail venue. Additionally, the FV incentive program impact on FV purchase and/or consumption is summarized. Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for scoping reviews, a search of four bibliographic databases resulted in the identification of 45 publications for consideration; 19 of which met the pre-determined inclusion criteria for full-length publications employing a quasi-experimental design and focused on verified, current SNAP participants. The data capturing study objective, study design, sample size, incentive program structure characteristics (participant eligibility and recruitment, delivery and timing of incentive, foods eligible for incentive redemption, type of retail venue), and study outcomes related to FV purchases/consumption were entered in a standardized chart. Eleven of the 19 studies had enrollment processes to receive the incentive, and most studies (17/19) provided the incentive in the form of a token, coupon, or voucher. The value of the incentives varied, but was usually offered as a match. Incentives were typically redeemable only for FV, although three studies required an FV purchase to trigger the delivery of an incentive for any SNAP-eligible food. Finally, most studies (16/19) were conducted at farmers’ markets. Eighteen of the 19 studies reported a positive impact on participant purchase and/or consumption of FV. Overall, this scoping review provides insights intended to inform the design, implementation, and evaluation of future FV incentive programs targeting SNAP participants; and demonstrates the potential effectiveness of FV incentive programs for increasing FV purchase and consumption among vulnerable populations.
A 140 MW Solar Thermal Plant in Jordan
Authors: Al-Kouz Wael , Almuhtady Ahmad , Abu-Libdeh Nidal , Nayfeh Jamal , Boretti Alberto
Published: June 2020

This paper aims to compute the performances of a smaller version of Solana power plant, with half the solar field, and 1 of 2 turbines in the power cycle, that can be built in Amman or Ma’an in Jordan. The climate conditions for both Amman and Ma’an are discussed thoroughly in the paper. Furthermore, a preliminary validation exercise performed by using measured monthly average values of electricity production from existing plants, a system advisor model (SAM) is used to predict the performances of the proposed Solana-like plants in Ma’an and Amman. The validation shows a good agreement with the measured data for different existing power plants. The simulation results including the monthly capacity factors suggest the annual operation in Ma’an maybe even better than the operation in Gila Bend, for an annual average capacity factor of about 41% for Ma’an vs. a capacity factor of about 39% for Gila Bend. This is mainly due to the best combination of direct normal irradiance (DNI) and the dry bulb temperature across the year in Ma’an versus Gila Bend.
Changes in Muscle Contractile Properties after Cold- or Warm-Water Immersion Using Tensiomyography: A Cross-Over Randomised Trial
Authors: Mur Gimeno Esther , Campa Francesco , Badicu Georgian , Castizo-Olier Jorge , Palomera-Fanegas Elisabet , Sebio-Garcia Raquel
Published: June 2020

Muscle contractile properties in clinical practice are often measured using either subjective scales or high-cost, inaccessible equipment. In this randomised cross-over study, we aimed to explore the use of tensiomyography (TMG) to assess changes in muscle contractile properties after cold- and warm-water immersion. The muscle contractile properties of the biceps femoris (BF) were assessed using TMG in 12 healthy active men (mean age 23 ± 3 years, Body Mass Index 22.9 ± 1.3 kg/m2) before and after a 20-min warm- or cold-water immersion over a period of 40 min. Muscle displacement (Dm) and contraction time (Tc) were registered as the main variables of the study. There was a significant condition by time interaction for Dm (p < 0.01). Post hoc analysis showed that, compared to the baseline, there was an increase in Dm 40 min after warm-water immersion (p < 0.01) and a decrease at 10 min after cold-water immersion (p < 0.01). No significant effect was found for Tc. Our results indicate that muscle contractile properties are affected by water temperature and time after the immersion; therefore, these factors should be taken into account when water-immersion is used as a recovery strategy.
Design of a Multipoint Cost-Effective Optical Instrument for Continuous In-Situ Monitoring of Turbidity and Sediment
Authors: Matos T. , Faria C. L. , Martins M. S. , Henriques Renato , Gomes P. A. , Goncalves L. M.
Published: June 2020

A cost-effective optical instrument for continuous in-situ monitoring applications is presented. With a production cost in raw materials of 38 €, a power consumption of 300 A in sleep mode and 100 mA in active mode (5 ms reading), and a capacity to monitor turbidity and sedimentary displacement at eight different depths in the water column, the sensor was developed for sediment monitoring in coastal areas. Due to the extent and dynamics of the processes involved in these areas, observations require a wide spatial and temporal resolution. Each of the eight monitoring nodes uses one infrared backscatter channel, to estimate turbidity and sediment concentration, and one ultraviolet with one infrared transmitted light channels to distinguish organic/inorganic composition of the suspended material load. An in-lab calibration was conducted, using formazine to correlate turbidity with the electronic outputs of the instrument. An analysis of the influence of external light sources and correction techniques were performed. Moreover, an in-lab experiment was conducted to study the behaviour of the sensor-to-sediment transport, wash load and sediment accumulation. The device was deployed, with a water level sensor, in an estuarine area with high sediment dynamics. The monitoring data were analysed, showing the potential of the device to continuously monitor turbidity, sediment processes, and distinguish between organic and inorganic matter, at the different depths in the water column.
Probabilistic Updating of Structural Models for Damage Assessment Using Approximate Bayesian Computation
Authors: Feng Zhouquan , Lin Yang , Wang Wenzan , Hua Xugang , Chen Zhengqing
Published: June 2020

A novel probabilistic approach for model updating based on approximate Bayesian computation with subset simulation (ABC-SubSim) is proposed for damage assessment of structures using modal data. The ABC-SubSim is a likelihood-free Bayesian approach in which the explicit expression of likelihood function is avoided and the posterior samples of model parameters are obtained using the technique of subset simulation. The novel contributions of this paper are on three fronts: one is the introduction of some new stopping criteria to find an appropriate tolerance level for the metric used in the ABC-SubSim; the second one is the employment of a hybrid optimization scheme to find finer optimal values for the model parameters; and the last one is the adoption of an iterative approach to determine the optimal weighting factors related to the residuals of modal frequency and mode shape in the metric. The effectiveness of this approach is demonstrated using three illustrative examples.
Analysis of Ionospheric Disturbances Caused by the 2018 Bering Sea Meteor Explosion Based on GPS Observations
Authors: Luo Yiyong , Yao Yibin , Shan Lulu
Published: June 2020

The Bering Sea meteor explosion that occurred on 18 December 2018 provides a good opportunity to study the ionospheric disturbances caused by meteor explosions. Total electron content (TEC) is the core parameter of ionospheric analysis. TEC and its changes can be accurately estimated based on the Global Positioning System (GPS). TID is detected in time and frequency domain based on power spectrum and Butterworth filtering method. By analyzing the waveform, period, wavelength, propagation speed and space-time distribution of TID, the location of the TID source is determined, and the process of TID formation and propagation is understood. The TID caused by meteor explosions has significant anisotropy characteristic. Two types of TID were found. For the first type, the average horizontal propagation velocity is 250.22 ± 5.98 m/s, the wavelength is ~135–240 km, the average period is about 12 min, and the propagation distance is less than 1400 km. About 8 min after the meteor explosion, the first type of TID source formed and propagated radially at the velocity of 250.22 ± 5.98 m/s. For the second type, the propagation velocity is ~434.02 m/s. According to the waveform, period, wavelength and propagation velocity of the TID, it is diagnosed to be the midscale traveling ionospheric disturbances (MSTID). Based on the characteristics of TID, we infer that the TID is excited by the gravity waves generated by the meteor explosion, which is in accordance with the propagation law of gravity waves in the ionosphere. And it is estimated that the average velocity of the up-going gravity waves is about 464.58 m/s. A simple model was established to explain the formation and the propagation of this TID, and to verify the characteristics of the TID propagation caused by nuclear explosion, earthquake, tsunami, and Chelyabinsk meteorite blast. It is estimated that the position of the TID source is consistent with the meteor explosion point, which further indicates that the TID is caused by the meteor explosion and propagates radially.
Analysis of Modern Optical Inspection Systems for Parts Manufactured by Selective Laser Melting
Authors: Giganto Sara , Martínez-Pellitero Susana , Cuesta Eduardo , Meana Víctor M. , Barreiro Joaquín
Published: June 2020

Metal additive manufacturing (AM) allows obtaining functional parts with the possibility of optimizing them topologically without affecting system performance. This is of great interest for sectors such as aerospace, automotive, and medical–surgical. However, from a metrological point of view, the high requirements applied in these sectors constitute a challenge for inspecting these types of parts. Non-contact inspection has gained great relevance due to the rapid verification of AM parts. Optical measurement systems (OMSs) are being increasingly adopted for geometric dimensioning and tolerancing (GD&T) verification within the context of Industry 4.0. In this paper, the suitability (advantages and limitations) of five different OMSs (based on laser triangulation, conoscopic holography, and structured light techniques) for GD&T verification of parts manufactured by selective laser melting (SLM) is analyzed. For this purpose, a specific testing part was designed and SLM-manufactured in 17-4PH stainless steel. Once the part was measured by contact (obtaining the reference GD&T values), it was optically measured. The scanning results allow comparing the OMSs in terms of their inspection speed as well as dimensional and geometrical accuracy. As a result, two portable systems (handheld laser triangulation and structured blue-light scanners) were identified as the most accurate optical techniques for scanning SLM parts.
Adsorption Strategy for Removal of Harmful Cyanobacterial Species Microcystis aeruginosa Using Chitosan Fiber
Authors: Park Yun Hwan , Kim Sok , Kim Ho Seon , Park Chulhwan , Choi Yoon-E
Published: June 2020

Microcystis aeruginosa is one of the predominant species responsible for cyanobacterial-harmful algal blooms (Cyano-HABs) in water bodies. Cyano-HABs pose a growing number of serious threats to the environment and public health. Therefore, the demand for developing safe and eco-friendly solutions to control Cyano-HABs is increasing. In the present study, the adsorptive strategy using chitosan was applied to remove M. aeruginosa cells from aqueous phases. Using a simple immobilization process, chitosan could be fabricated as a fiber sorbent (chitosan fiber, CF). By application of CF, almost 89% of cyanobacterial cells were eliminated, as compared to those in the control group. Field emission scanning electron microscopy proved that the M. aeruginosa cells were mainly attached to the surface of the sorbent, which was correlated well with the measurement of the surface area of the fiber. We tested the hypothesis that massive applications of the fabricated CF to control Cyano-HABs might cause environmental damage. However, the manufactured CF displayed negligible toxicity. Moreover, we observed that the release of cyanotoxins and microcystins (MCs), during the removal process using CF, could be efficiently prevented by a firm attachment of the M. aeruginosa cells without cell lysis. Our results suggest the possibility of controlling Cyano-HABs using a fabricated CF as a non-toxic and eco-friendly agent for scaled-up applications.
Exploring a Sustainable Cropping System in the North China Plain Using a Modelling Approach
Authors: Wang Huanyuan , Li Baoguo , Jin Liang , Hu Kelin
Published: June 2020

The North China Plain (NCP) is one of the most important grain production regions in China. However, it currently experiences water shortage, severe nonpoint source pollution, and low water and N use efficiencies (WUE and NUE). To explore sustainable agricultural development in this region, a field experiment with different cropping systems was conducted in suburban Beijing. These cropping systems included a winter wheat and summer maize rotation system for one year (WM), three harvests (winter wheat-summer maize-spring maize) in two years (HT), and continuous spring maize monoculture (CS). Novel ways were explored to improve WUE and NUE and to reduce N loss via the alternative cropping system based on the simulation results of a soil-crop system model. Results showed that the annual average yields were ranked as follows: WM > HT > CS. The N leaching of WM was much larger than that of HT and CS. WUE and NUE were ranked as follows: WM < HT < CS. Comprehensive evaluation indices based on agronomic and environmental effects indicated that CS or HT have significant potential for approaches characterized by water-saving, fertilizer-saving, high-WUE, and high-NUE properties. Once spring maize yield reached an ideal level HT and CS became a high-yield, water-saving, and fertilizer-saving cropping systems. Therefore, this method would be beneficial to sustainable agricultural development in the NCP.
Freight Data-Driven Research on Evaluation Indexes for Urban Agglomeration Development Degree
Authors: Shi Qiufang , Yan Xiaoyong , Jia Bin , Gao Ziyou
Published: June 2020

A reasonable comprehensive evaluation of the degree of urban agglomeration development is of great significance for its sustainable development. Although there are some studies on the evaluation of urban agglomeration development degree from the overall development level, only a few studies consider internal development equilibrium and internal interaction intensity. This work uses freight trip data as the main empirical data to establish three alternative evaluation indexes named the overall freight intensity, the internal freight intensity equilibrium level, and the internal freight interaction relative intensity to reflect the urban agglomeration’s overall development level, internal equilibrium level, and internal interaction level, respectively. Then, this work weights the above three alternative indexes to comprehensively evaluate the comprehensive development degree of 14 Chinese urban agglomerations. Finally, this work classifies these urban agglomerations into three stages according to the comprehensive evaluation values. The research results could help us to reasonably evaluate the degree of comprehensive development of urban agglomeration.
Values Influence Public Acceptability of Geoengineering Technologies Via Self-Identities
Authors: Moynihan Andrew B. , Schuitema Geertje
Published: June 2020

Values are important antecedents of how people view themselves, known as self-identities. Self-identities differ in their content and the importance that people attach to them. In turn, important self-identities promote attitudes that are compatible with a sense of who one is. This paper builds on existing work that highlights that self-identities explained the relationship between values and environmental judgments. This study incorporates a broader range of values (i.e., conservatism, openness to change, self-transcendence, self-enhancement) and self-identities (i.e., environmental, economic, political) and tests how they are related to acceptability of four geoengineering technologies. Whilst support was found for the overall model, the results also show that technology acceptability is context dependent. That is, which specific values and self-identities explain acceptability judgements depends on the specific technology that is evaluated. In general, an environmental self-identity related more to geothermal energy, an economic self-identity was most relevant to geotechnical engineering, and a political self-identity to nuclear power. Each self-identity seemed relevant to mining. This research contributes to the literature by applying this framework to acceptability of geoengineering technologies and discusses practical implications.
Local Community Perceptions on Landscape Change, Ecosystem Services, Climate Change, and Livelihoods in Gonarezhou National Park, Zimbabwe
Authors: Musakwa Walter , Mpofu Ephraim , Nyathi Nesisa Analisa
Published: June 2020

Understanding humanity’s relationship with nature is crucial for the well-being and sustainable development of mankind in the face of global environmental change. Communities depend on landscapes for survival and landscapes determine if sustainable development is to be achieved. The links between landscapes, ecosystem services, livelihoods, and climate change are often complex, misunderstood, and barely studied in rural areas of Africa, where communities live side-by-side with conservation areas. Our study surveyed the perception of the nexus of landscape change, climate change, ecosystem services, and livelihoods in Gonarezhou, a national park in southeastern Zimbabwe. We also used Landsat satellite imagery to map the landscape change over 20 years to validate and to correlate with the survey data. The survey results indicated that people relied on rainfed agriculture as a means of livelihood, but droughts as a result of climate change force communities to engage in other means of livelihoods such as small-scale poaching of small game such as impala and harvesting of natural resources such as edible shrubs. Crops and livestock as provisional ecosystem services have been negatively affected by climate change and landscape change. Landsat data confirmed that there was a negative transformation of the landscape as a result of agriculture, growth in settlements, and large herbivores. However, there was also a positive landscape transformation resulting from the conservation efforts by the Gonarezhou Conservation Trust (GCT). Cultural services about education and awareness of the environment and provisional services such as wild fruits are booming. Challenges such as soil erosion, human–wildlife conflict, and minimal community benefits from conservation efforts hindered sustainable development in the study area. While changes in landscape, climate, livelihoods, and ecosystem services happened at a local scale, the underlying drivers such as politics and the economy were also identified as drivers of landscape change.
The Tat Protein of HIV-1 Prevents the Loss of HSV-Specific Memory Adaptive Responses and Favors the Control of Viral Reactivation
Authors: Nicoli Francesco , Gallerani Eleonora , Sicurella Mariaconcetta , Pacifico Salvatore , Cafaro Aurelio , Ensoli Barbara , Marconi Peggy , Caputo Antonella , Gavioli Riccardo
Published: June 2020

The development of therapeutic strategies to control the reactivation of the Herpes Simplex Virus (HSV) is an unaddressed priority. In this study, we evaluated whether Tat, a HIV-1 protein displaying adjuvant functions, could improve previously established HSV-specific memory responses and prevent viral reactivation. To this aim, mice were infected with non-lethal doses of HSV-1 and, 44 days later, injected or not with Tat. Mice were then monitored to check their health status and measure memory HSV-specific cellular and humoral responses. The appearance of symptoms associated with HSV-reactivation was observed at significantly higher frequencies in the control group than in the Tat-treated mice. In addition, the control animals experienced a time-dependent decrease in HSV-specific Immunoglobulin G (IgG), while the Tat-treated mice maintained antibody titers over time. IgG levels were directly correlated with the number of HSV-specific CD8+ T cells, suggesting an effect of Tat on both arms of the adaptive immunity. Consistent with the maintenance of HSV-specific immune memory, Tat-treated mice showed a better control of HSV-1 re-infection. Although further studies are necessary to assess whether similar effects are observed in other models, these results indicate that Tat exerts a therapeutic effect against latent HSV-1 infection and re-infection by favoring the maintenance of adaptive immunity.
Analysis of Influencing Factors of Thermal Management System for LiFePO4 Lithium Battery under High Power Charging
Authors: Du Jiuyu , Sun Yizhao , Huang Yingxuan , Wu Xiaogang
Published: June 2020

During the high-power charging process, the heat generated by the power battery is significantly increased, resulting in a significant temperature rise, which will bring safety hazards and worsens capacity degradation. In this study, we focus on the energy storage system composed of LiFePO4 pouch battery cells whose capacity is 30Ah. The coupling calculation between the one-dimensional electro-chemical model and the 3D heat generation model is realized. The accuracy of the model is verified by charging the battery at different rates. The results show that the inlet flow rate and the cooling channel size within a certain range has a great influence on the cooling effect of the battery pack during high power charging process. Comparing the temperature distribution of the battery pack under different charging rates, the electrochemical-heating coupling model established in this study can truly reflect the heat generation of the battery. Through the calculation of the heat generation of the battery pack, the boundary conditions of the cooling system design can be found, which provides a basis for the optimal design of the conditional cooling system for battery high-power charging.
Clinical features and skin prick test in chronic urticarial patients at Hue University of Medicine and Pharmacy Hospital
Authors: Nguyen Thi Tra My , Tran Ngoc Khanh Nam , Nguyen Thi Thanh Phuong , Le Thi Cao Nguyen , Le Thi Thuy Nga , Mai Ba Hoang Anh
Published: June 2020

Background: Chronic urticaria is an allergic skin condition that significantly affects the quality of life. Skin prick test determines allergens in order to prevent recurrent urticaria.

Materials and methods: 43 chronic urticaria patients visiting the Dermatology Clinic from 09/2017 to 09/2018 were tested for 16 allergens on the skin at the Immunology Department, Hue University of Medicine and Pharmacy.

Results: 30 females and 13 males participated in the study (female/male 2.3/1). The average number of disease episodes was 3.1 ± 1.4 times; with the other allergic diseases accompanied by 41.9% of patients; the average severity score was 10.0 ± 2.0 with the serious condition accounting for 60.5%. 86.0% of patients had a positive skin prick test, of which the positive rate for respiratory allergens (mites with the highest rate was 34.9%) was higher than the food allergens (crab 30.2%). There is a correlation between positive skin prick results and atopic allergies.

Conclusion: The majority of chronic urticaria patients were severe and had positive skin prick results, in which mites had the highest incidence of allergy.

Key words: urticaria, chronic urticaria, skin prick test, allergen, allergic
Repositorios institucionales digitales de acceso abierto: una mirada socio-tecnológica. Estudio de caso del repositorio de la Universidad Nacional de Entre Ríos - Argentina
Authors: Andrés Gonzalo , Cortassa Amadio Carina , Wursten Andrés , Legaria Juan Ignacio
Published: June 2020

En este artículo se describe y analiza el desarrollo socio-tecnológico del Repositorio Institucional (RI) de la Universidad Nacional de Entre Ríos (UNER, Argentina) durante el período 2015-2019. El estudio forma parte de un proyecto de investigación más amplio, enfocado en una variedad de estrategias y prácticas institucionales destinadas a promover la comunicación científica y el acceso abierto al conocimiento. Desde la perspectiva de los Estudios Sociales de la Tecnología, se concibe a los RI como dispositivos complejos, en cuyo diseño e implementación se articulan soportes y artefactos técnicos, decisiones institucionales, normativas, hábitos culturales, prácticas de uso, afinidades, intereses y disputas entre grupos sociales. Mediante un abordaje metodológico cualitativo -basado en fuentes documentales, entrevistas en profundidad y grupos focales de discusión- se logró identificar un conjunto de potencialidades y dificultades presentes en la estrategia difusionista adoptada por la UNER en el desarrollo de su repositorio digital. Si bien ello permitió cumplir con los requerimientos legales y tecnológicos externos, el análisis muestra que en el proceso se soslayaron las necesidades, prácticas y hábitos de los diversos tipos de agentes internos involucrados –dimensiones clave para la apropiación grupal y la sostenibilidad socio-técnica de un RI.
Nurturing Collective Knowledge and Intelligence
Authors: Kefalaki Margarita , Diamantidaki Fotini
Published: June 2020

Our current issue focuses on four different social phenomena that are in crisis, despite of COVID-19, and in need of our urgent attention; the environmental health issue, the European political landscape, the workplace burnout and the pervasion of social media in our children’s everyday lives.
Magnetic Nanomotor-Based Maneuverable SERS Probe
Authors: Wang Yong , Liu Yuhuan , Li Yang , Xu Dandan , Pan Xi , Chen Yuduo , Zhou Dekai , Wang Bo , Feng Huanhuan , Ma Xing
Published: June 2020

Surface-enhanced Raman spectroscopy (SERS) is a powerful sensing technique capable of capturing ultrasensitive fingerprint signal of analytes with extremely low concentration. However, conventional SERS probes are passive nanoparticles which are usually massively applied for biochemical sensing, lacking controllability and adaptability for precise and targeted sensing at a small scale. Herein, we report a “rod-like” magnetic nanomotor-based SERS probe (MNM-SP) that integrates a mobile and controllable platform of micro-/nanomotors with a SERS sensing technique. The “rod-like” structure is prepared by coating a thin layer of silica onto the self-assembled magnetic nanoparticles. Afterwards, SERS hotspots of silver nanoparticles (AgNPs) are decorated as detecting nanoprobes. The MNM-SPs can be navigated on-demand to avoid obstacles and target sensing sites by the guidance of an external gradient magnetic field. Through applying a rotating magnetic field, the MNM-SPs can actively rotate to efficiently stir and mix surrounding fluid and thus contact with analytes quickly for SERS sensing. Innovatively, we demonstrate the self-cleaning capability of the MNM-SPs which can be used to overcome the contamination problem of traditional single-use SERS probes. Furthermore, the MNM-SPs could precisely approach the targeted single cell and then enter into the cell by endocytosis. It is worth mentioning that by the effective mixing of intracellular biocomponents, much more informative Raman signals with improved signal-to-noise ratio can be captured after active rotation. Therefore, the demonstrated magnetically activated MNM-SPs that are endowed with SERS sensing capability pave way to the future development of smart sensing probes with maneuverability for biochemical analysis at the micro-/nanoscale.
Exploring the Nexus between Migrant Remittances and Economic Growth: A Study of Senegal
Authors: Coly Samuel Maxime , Mendy Pierre
Published: June 2020

In this study, we assess the relationship between migrant remittances and economic growth in Senegal. The analysis utilized on an econometric approach using the ARDL bound testing method as an estimation technique. The estimation period is from 1980 to 2018. Overall, the estimates show a negative relationship
between remittances and economic growth and an insignificant effect in the long run, while the nexus between economic growth and investment is positive in the long term. This provides the prospect of a study on the analysis of the impact on the economic growth of reallocation of remittances from consumption needs to savings-investment purposes.
Extrapolating Back in Time to our Off-Planet Ancestors
Authors: Caddy John F.
Published: June 2020

Trying to guess what happened in the distant past and where we come from, requires a juggling of unknowns, and from most points of view that is what you are going to read here. At the same time, as we accumulate more information, it begins to be clear that the few clues left for us exclude certain possibilities, and point to constantly occurring processes such as Syntropy being involved. It’s always been a mystery to me why for example, physical science is enamoured of the concept of Entropy. Perhaps it is because a decline in structural complexity with time describes well the degradation of our world over time under the dominant philosophy of materialism. Its opposing concept, Syntropy, implies an increase in complexity, brought about by a mysterious force apparently acting from the future, and this process is less easily fitted into a Newtonian universe. Syntropy, or ‘the law of creative connecting’ is defined by the Free Dictionary as the force used by the universe to move us towards a brighter future, and its action is described by vocabularies such as: ‘The will to become’, ‘Intent’, ‘Evolution’. These terms seem to describe the origin of life and intelligence, but Syntropy has been largely shunned by science.One of the most effective mechanisms of syntropy is that for past ages, intelligent life form s have been arriving here, and still are coming to our planet from somewhere else in the cosmos, using their discoveries to speed up our evolution.
Wonder Findings of Number of Cells in a Body Including Sexual Cells, Remedy of Corona Virus, Increase of Memory, and other Cells by Couple System
Authors: Das Nirmalendu
Published: June 2020

It is difficult to calculate fixed data of a number of cells in a body. It is varying on time and age of life. The time increasing that cells are increasing, though we can estimate the number of cells in various nerves in a body, brain, sexual platform, etc through a couple system. The coupling system is a new system of the finding of peculiar series of numbers [1], which is applies to many fields. In the cases of Medical Science, it has been observed by calculation that due to disturbing of the couple caused different difficulties in the body. A smooth Coupling cell may produce a healthy body, and it is possible to increase memory by adding particular cells number in a loss position. The coupling system is interesting that, can explain the real mechanism of every cell. There are many types of cells in a living body. Almost all cells follow a couple of system. The coupling system performs coupling between two (say, A, 1st party & B, 2nd party) with keeping relation as 3rd party, denoted by R (Relative Number) mathematically.
View on the left atrial appendage thrombosis on the heart autopsy
Authors: Krivosheev Y. S. , Chukov S. Z. , Mkrtychev D. S. , Bashta D. I. , Tikhonova N. A. , Vilenskiy L. I. , Kolesnikov V. N. , Romanov A. B.
Published: June 2020

Introduction. Thromboembolic syndrome is a dangerous complication of atrial fibrillation (AF). Left atrial appendage (LAA) is the most frequent location of the thrombus formation in AF. Enlargement of the LAA, special anatomical forms of the appendage are accepted as a risk factors of the LAA thrombosis.

Aim: to assess the revealing macro-/microthrombosis LAA in dependence of the morphological form of the appendage in autopsy.

Methods. 85 cadaveric hearts were investigated. LAA was measured in three dimensions, the anatomical form of the LAA were estimated by Wang et al. classification. Histological investigation of the LAA slices was made in Hematoxylin Eosin colouring.

Results. Macrothrombosis was revealed in 4 LAA. Microthrombus in the LAA were revealed in 46 (54,1%) specimens. We did not find statistical significance between frequency micro thrombosis of the LAA and morphology of the appendage (p = 0,3) with the trend to revealing more microthrombus in anatomic form of the LAA «chicken wing» (65% of this morphological type). Analysis of the diseases died patients showed absence AF in 54,3% cases of the LAA microthrombosis group. AF was diagnosed only in 16 (45,7%) cases in stroke group with revealed micro thrombosis in the LAA.

Conclusion. The investigation did not show statistical significance between the anatomical form of LAA and revealing of appendage microthrombosis. Possibly, there is a common pathomorphological process of the LAA thrombosis independence of the AF presence. Further trials are needed to confirm this consumption.
Recensão de 'Treze Cartas e Três Bilhetes de Rachel Cohen' de Mário Cláudio
Authors: Vieira José Emanuel
Published: June 2020

Livro resenhado:Mário Cláudio. Treze Cartas e Três Bilhetes de Rachel Cohen. Porto: Modo de Ler – Centro Literário Marinho, Lda., 2018, 53 pp.
Olhos doces da burra – o animal e as animalidades n’O trigo e o joio (1954) de Fernando Namora
Authors: Doktorska Magdalena
Published: June 2020

No presente artigo pretende-se analisar o romance O Trigo e o Joio (1954) de Fernando Namora na base do aparelho metodológico proveniente dos Estudos Animais. Conceitos ligados com esta disciplina emergente permitem investigar as (inter)relações entre os protagonistas humanos e o(s) animal(is) no romance, assinalar as relações de poder, como também indicar as possíveis saídas da realidade opressora do Alentejo retratado no romance.
MIGRATION AND ECONOMICAL DEVELOPMENT OF SMALL COUNTRIES IN EUROPE
Authors: Adžić Sofija
Published: June 2020

The paper analyzes the institutional framework and the implementation of the European concept of sustainable development within migration flows. The key research method is factor analysis which is applied to describe the functioning of institutional and market initiatives in the course of establishing a sustainable development regime that absorbs migration flows. The main obstacles in this regard were: poor construction of today’s market, the current public system of economic development regulation and low efficiency in absorption of migrant flows. Small countries will have to turn to macro- and microreforms and policies. The framework of sustainable development requires a new approach in the context of the Agenda 2030 will improve: (1) the socioeconomic climate for productive entrepreneurship and employment growth, (2) development of the innovation system under 3T, and (3) development of the economy overall.
Dosage Determination of Galangal Extract (Alpinia purpurata) Through LC50-96 Method on Zebrafish Larvae (Danio rerio) as a Model
Authors: Amanullah Muhammad Azmi , Widodo Maheno Sri , Faqih Abdul Raheem
Published: June 2020

Galangal (Alpinia purpurata) is a herb and medicine plant that is found in Southeast Asia including Thailand, Malaysia, and Indonesia. It is known to have health benefits for its flavonoid, phytosterol, and phenols that are anti-oxidant, anti-cancer, and anti-fungal properties. The phytosterol also can be used for sex hormones production.The exploration of its uses in aquaculture are not yet fully understand. In this LC50-96 experiments were tested for its optimum dosage used in aquaculture by using zebrafish larvae (Danio rerio) as a model. The optimum dosage in the experiments were between 1—31,83 ppm for ethanolic extract of galangal and <0,83 ppm for methanolic extract of galangal. Its uses in aquaculture must be further explored by its effect in fishes behaviors or by the histology of the organs.
A Machine Learning Model for Recommending Restaurants based on User Ratings
Authors:   Assistant Professor (Adhoc), Department. of Computer Science and Engineering, JNTUACEP. Specialized in Computer Networks and Cloud Computing., Lavanya B. Muni , Kumar K. Kalyan ,   Student, Department Of Computer Science and Engineering, IV B.Tech, Kayanath H. Shagufta ,   Student, Department Of Computer Science and Engineering, IV B.Tech, Bai D.Pushpalatha ,   Student, Department Of Computer Science Engineering, IV B.Tech
Published: June 2020

However, oftentimes people just search a restaurant by using word “restaurant”, while the word “restaurant” means differently to different individuals. For an Asian, it can mean a “Chinese restaurant” or “Thai restaurant”. How to correctly interpret search requests based on people’s preference is a challenge. Building a machine-learning model based on activity history of a registered user can solve this problem. The activity histories used by this research are reviews and ratings from users. This project introduces a data processing pipeline, which uses reviews from registered users to generate a machine-learning model for each registered user. This project also defines an architecture, which uses the generated machine-learning models to support real-time personalized recommendations for restaurant searching and type of foods good at those recommended restaurants. Finally, this project aims to develop a good machine learning model, different collaborative filtering methodologies are considered to predict restaurants using user ratings. Slope One, k-Nearest Neighbors algorithm and multiclass SVM classification are some of the collaborating methodologies are going to consider in this project.
Qualimetric Analysis of Pipelines with Corrosion Surfaces in the Monitoring System of Oil and Gas Enterprises
Authors:   Department of Electrophysical Methods of Non-Destructive Testing, Karpenko Physico-mechanical Institute of the NAS of Ukraine, Lviv, Ukraine, Yuzevych Volodymyr , Pavlenchyk* Nataliia ,   Department of Economics and Management, Lviv State University of Physical Culture, Lviv, Ukraine;, Zaiats Olha ,   Department of Civil Law Disciplines, Lviv State University of Internal Affairs, Lviv, Ukraine, Heorhiadi Nellі ,   Department of Management and International Business, Lviv Polytechnic National University, Lviv, Ukraine, Lakiza Viktoriia ,   Department of Management and International Business, Lviv Polytechnic National University, Lviv, Ukraine
Published: June 2020

The introduction of new technologies for diagnosing underground metal pipelines with dangerous surface defects is a practically important task. That is why studies aimed at improving the methods of assessing the quality of deformed metal pipelines and structural elements are necessary and relevant. The evaluation of the effectiveness of engineering and technological solutions for oil and gas enterprises needs improvement. In this context, an important task is to solve the problem of quality control (including durability) of gas and oil transportation systems and the improvement of appropriate metrological support. Based on surface physics and fracture mechanics, development of a methodological approach to assessing the quality and resource of underground metal pipelines (UMP) of oil and gas enterprises, taking into account the constructions strength, corrosion fatigue, parameters of corrosion protection and metrological support. Results of processing of normative documents and scientific works in the field of gas transportation enterprises, as well as methods of surface physics, mechanics of deformed solid body, fracture mechanics, qualimetry regarding the system “pipeline (UMP) – coating”. A new criterion for the strength of the surface of a metal underground pipe is proposed, which characterizes the peculiarities of bond fractures (adhesion) between the coating and the metal. Using the criterion of the strength of a metal tube with a defect in the electrolyte, the dependence of the critical internal pressure of the gas pipeline (UMP) on the geometric and energy (elastic and plastic) parameters of the metal, as well as the current of the anodic dissolution, which characterizes the features of the crack propagation at the bottom of the corrosion cavern. On the basis of surface physics and fracture mechanics obtained, a methodology for evaluating the quality of underground metal pipelines of oil and gas enterprises was developed to determine their resource, taking into account strength, corrosion fatigue, parameters of corrosion protection and metrological support.
Global Fashion Brands: Does Sustainability Make Business Sense?
Authors:   Faculty, Christ University, Bangalore,India, Choraria CA. Rohit , Jain Medha ,   B COM Professional (Finance), Christ University, Bangalore,India., Goel Cima Affiliate Praguni ,   BCom Professional, CHRIST (Deemed to be University), Bangalore,India.
Published: June 2020

Sustainable fashion has gained significant importance with growing awareness of the real cost of fashion in terms of its impact on people and the environment. Large fashion firms have responded with sustainability policies to address these real costs. This leads to an interesting interplay of sustainability and financial performance which may not be entirely in alignment with each other. The paper has empirically assessed the sensitivity of changes in financial metrics to changes in sustainability metrics using the Fashion Transparency Index. The statistical tool of correlation is used for this assessment. We find that brands who show above average sales growth and profit margins are three times more likely to meaningfully adopt sustainability, than others. In other words, global brands need to "do well" (in financial terms) to "do good" (in terms of sustainability).
Design and Simulation of Brain Controlled Electronic Wheelchair for Physically Challenged Person
Authors:   Department of Mechanical Engineering, Koneru Lakshmiah Education Foundation, Guntur, India., Susmitha* Emani , Kumar K. Kishore ,   Department of Mechanical Engineering, Koneru Lakshmiah Education Foundation, Guntur, India.
Published: June 2020

Improving the quality for the life of elders and disabled person and giving proper care at the right time is one of the most important role to be performed as a responsible citizen in the society. This paper is describing about the integration of hardware, software and sensors with the help of Brain Computer Interface (BCI) to develop best generation wheelchair for physical challenged persons. Electronic wheelchair is one of the easiest way for disabled persons to lead an independent life. This smart wheelchair is totally controlled by brain, and here mechatronics plays an important role in safety recovery. By developing these types of wheelchairs it can reduce the usage of human effort and force to drive the wheels of wheelchair. It also provides a better opportunity for physically handicap person to move from one place to another. One of the best method to record brain activities can be done with the help of electroencephalography (EEG) this is also known as brain waves signal, through these EEG signals the BCI interface encode and decode the signals and transfers to ATMEGA 328 microcontroller. This wheelchair with the support of motor drives the movement is designed in such a way to control the commands like moving forward and backward, stop, turn left and right. Intelligent Wheelchair is designed using solid works and implementing into MATLAB using simmechanics is simulated using simscape multibody and the resulting torque is obtained. The aim of this paper is implement mind controlled movements for disabled persons.Keywords: Orthosis, Paraplegia, Rehabilitation, Simulation, Under limb.