bluuebunny/crossref_metadata_2025 huggingface dataset:
Hourly PWV Dataset Derived from GNSS Observations in China
Authors: Zhao Qingzhi , Yang Pengfei , Yao Wanqiang , Yao Yibin
Published: December 2019

The rapid variation of atmospheric water vapor is important for a regional hydrologic cycle and climate change. However, it is rarely investigated in China, due to the lack of a precipitable water vapor (PWV) dataset with high temporal resolution. Therefore, this study focuses on the generation of an hourly PWV dataset using Global Navigation Satellite System (GNSS) observations derived from the Crustal Movement Observation Network of China. The zenith total delay parameters estimated by GAMIT/GLOBK software are used and validated with an average root mean square (RMS) error of 4–5 mm. The pressure (P) and temperature (T) parameters used to calculate the zenith hydrostatic delay (ZHD) and weighted average temperature of atmospheric water vapor (Tm) are derived from the fifth-generation reanalysis dataset of the European Centre for Medium-Range Weather Forecasting (ECMWF ERA5) products. The values of P and T at the GNSS stations are obtained by interpolation in the horizontal and vertical directions using empirical formulas. Tm is calculated at the GNSS stations using the improved global pressure and temperature 2 wet (IGPT2w) model in China with an RMS of 3.32 K. The interpolated P and T are validated by interpolating the grid-based ERA5 data into radiosonde stations. The average RMS and bias of P and T in China are 2.71/−1.11 hPa and 1.88/−0.51 K, respectively. Therefore, the error in PWV with a theoretical RMS of 1.85 mm over the period of 2011–2017 in China can be obtained. Finally, the hourly PWV dataset in China is generated and the practical accuracy of the generated PWV dataset is validated using the corresponding AERONET and radiosonde data at specific stations. Numerical results reveal that the average RMS values of the PWV dataset in the four geographical regions of China are less than 3 mm. A case analysis of the PWV diurnal variations as a response to the EI Niño event of 2015–2016 is performed. Results indicate the capability of the hourly PWV dataset of monitoring the rapid water vapor changes in China.
Study on Transient Contact-Impact Characteristics and Driving Capability of Piezoelectric Stack Actuator
Authors: Li Yanze , Shen Yunian , Xing Qiaoping
Published: December 2019

The transient contact-impact mechanism and driving capability of the piezoelectric stack actuator is analyzed using both experimental and theoretical methods. An experimental setup and its corresponding measurement approaches for the transient responses are designed. The launch range of the object resulting from the first contact-impact is measured through laser doppler vibrometer and the motion process is captured by high-speed camera. Experimental results illustrate that the launch range increases firstly and decreases subsequently as the frequency of the sine driving voltage increases. Meanwhile, considering the local viscoelastic contact deformation, a theoretical methodology including the mechanics model for the driving process is proposed. Based on the Lagrange equations of second kind, the governing equation of the driving system is derived. Transient responses are calculated using the fourth-order Runge–Kutta integration method. Contact forces and Poisson’s coefficient of restitution are calculated by the proposed theoretical method. The results of launch range show that the theoretical solutions have a good agreement with the experimental data. The peak value of contact force increases firstly and decreases subsequently with the increase of voltage frequency. In addition, the coefficient of restitutions is roughly 0.9 when f is greater than 3.5 kHz.
An Efficient Rescue System with Online Multi-Agent SLAM Framework
Authors: Lee SeungHwan , Kim HanJun , Lee BeomHee
Published: December 2019

A novel and an efficient rescue system with a multi-agent simultaneous localization and mapping (SLAM) framework is proposed to reduce the rescue time while rescuing the people trapped inside a burning building. In this study, the truncated signed distance (TSD) based SLAM algorithm is employed to accurately construct a two-dimensional map of the surroundings. For a new and significantly different scenario, information is gathered and the general iterative closest point method (GICP) is directly employed instead of the conventional TSD-SLAM process. Rescuers can utilize a total map created by merging individual maps, allowing them to efficiently search for victims. For online map merging, it is essential to determine the timing of when the individual maps are merged and the extent to which one map reflects the other map, via the weights. In the several experiments conducted, a light-detection and ranging system and an inertial measurement unit were integrated into a smart helmet for rescuers. The results indicated that the map was built more accurately than that obtained using the conventional TSD-SLAM. Additionally, the merged map was built more correctly by determining proper parameters for online map merging. Consequently, the accurate merged map allows rescuers to search for victims efficiently.
Automatic Waypoint Generation to Improve Robot Navigation Through Narrow Spaces
Authors: Moreno Francisco-Angel , Monroy Javier , Ruiz-Sarmiento Jose-Raul , Galindo Cipriano , Gonzalez-Jimenez Javier
Published: December 2019

In domestic robotics, passing through narrow areas becomes critical for safe and effective robot navigation. Due to factors like sensor noise or miscalibration, even if the free space is sufficient for the robot to pass through, it may not see enough clearance to navigate, hence limiting its operational space. An approach to facing this is to insert waypoints strategically placed within the problematic areas in the map, which are considered by the robot planner when generating a trajectory and help to successfully traverse them. This is typically carried out by a human operator either by relying on their experience or by trial-and-error. In this paper, we present an automatic procedure to perform this task that: (i) detects problematic areas in the map and (ii) generates a set of auxiliary navigation waypoints from which more suitable trajectories can be generated by the robot planner. Our proposal, fully compatible with the robotic operating system (ROS), has been successfully applied to robots deployed in different houses within the H2020 MoveCare project. Moreover, we have performed extensive simulations with four state-of-the-art robots operating within real maps. The results reveal significant improvements in the number of successful navigations for the evaluated scenarios, demonstrating its efficacy in realistic situations.
Investigation on Insulated, Brain-Implanted Antenna for Highly Reliable Biotelemetry Communication in MICS and ISM Bands
Authors: Shin Geonyeong , Yoon Ick-Jae
Published: December 2019

We derived a closed-form expression of the maximum power transfer efficiency (MPTE) between a transmitting antenna inside the brain and a receiving antenna outside the head using spherical wave expansion. The derived expression was validated using a FEKO simulation. The properties of the insulator and radiation mode were analyzed in each available medical implant communications service (MICS) and industrial, scientific and medical (ISM) band as a means of increasing the reliability of wireless biotelemetry implementation. Some interesting preceding results in the literature were revisited with the figure-of-merit MPTE. It was also newly found that the effect on MPTE by the physical size and material properties of the insulator in both transverse magnetic (TM) and transverse electric (TE) mode decreases for 2.4 GHz and 5.8 GHz and the loss of the insulator does not have a severe impact on MPTE once the dielectric constant is greater than a certain value. This work can be used as an implanted-antenna design guide for building reliable biotelemetry communication.
Research and Experiments on an External Miniaturized VFTO Measurement System
Authors: Wang Lizhe , Zhang Wenbin , Tan Xiangyu , Chen Weiren , Liang Shiqi , Suo Chunguang
Published: December 2019

Disconnect switch and circuit breakers operations in gas insulated switchgear (GIS) systems may produce very fast transient overvoltage (VFTO). Detecting VFTO is the first step for researchers to reduce the damage to other equipment of the substation caused by VFTO. Most of the existing sensors used for VFTO are generally bulky, complex to install, and require modification of the GIS structure. In this paper, a miniaturized measurement system that uses capacitive voltage divider and differentiating–integrating circuit is proposed. A special sensor structure and optimized differentiating–integrating circuit components arrangement were designed to increase the bandwidth of the measurement system. The frequency-domain, time-domain and voltage divide calibration experiment was performed, and a comparison experiment with an internal VFTO sensor was conducted. The measurement system was applied in the 500 kV GIS substation, and the VFTO measurement under specific conditions was carried out. The measured time domain and frequency domain waveforms conformed to the definition of standard VFTO according to IEC 60,071. It was found that the proposed measurement system meets VFTO measurement requirements and can be applied to actual VFTO measurements.
A Summary on Research of Household Energy Consumption: A Bibliometric Analysis
Authors: Ma Xiaowei , Wang Mei , Li Chuandong
Published: December 2019

With the emergence of the contradictions between energy supply and demand, considerable attention has been paid to the residential household energy consumption with increasing research in this field. Based on databases of Science Citation Index Expanded and Social Sciences Citation Index, this paper applies the bibliometric method to analyze the development and evolution of this research field using the literature published in the field of residential energy consumption during the period 1970–2018. The following findings were found: (1) The research on energy consumption of households is mainly divided into three stages: cognition (1970–1989), exploration (1990–2005), and rapid development (2006–2018); (2) By analyzing the citations of high-yield authors, institutions, journals and papers in this field, it is clear that the developed countries such as the United States, Britain, and the Netherlands have significantly stronger research capabilities in this field; (3) By analyzing the co-occurrence of keywords and co-citation of the literature in this field, the research hotspots in this field are summarized as the relationship between energy supply and demand, energy use efficiency, the relationship between various household indicators and energy consumption, environmental protection, modeling and measurement; (4) In view of the reality, future works should pay more attention to the influence of micro-factors, regional energy consumption issues, and energy consumption of rural households.
Multi-Objective Evaluation of Airborne Self-Separation Procedure in Flow Corridors Based on TOPSIS and Entropy
Authors: Ye Bojia , Yang Zhao , Wan Lili , Dong Yunlong
Published: December 2019

This paper proposes a simulation-based framework for assessing airborne self-separation procedures in flow corridors with consideration of different performance metrics, including air traffic operations, corridor capacity, safety, and environmental impacts. Firstly, the airborne self-separation concept in flow corridors is introduced, followed by an agent-based flow corridor simulation model. Then, data were collected to initialize a parallel-lane flow corridor model connecting A461 upper air route from Beijing to Guangzhou in China which can also simulate aircraft self-separating in the flow corridor. The total control delay, flow corridor throughput, breakout rate, and the CO2 emissions of traffic flow were considered as the impact measurements, and the TOPSIS and entropy method was used to rank the performances of different self-separation procedures. We found that combining multiple objectives into one, the optimum scheme can be obtained to guide the design of self-separation procedures for flow corridors. The research results can be used by airspace managers to dynamically develop appropriate operational procedures and rules for flow corridors given different operational conditions and constraints. Also, the framework proposed in the research may be used to evaluate the design of airspace structure with consideration of multiple objectives.
Stakeholders’ Interests in Developing an Energy Ecosystem for the Superblock—Case Hiedanranta
Authors: Joensuu Tuomo , Norvasuo Markku , Edelman Harry
Published: December 2019

Policy objectives aimed toward zero-energy buildings call for the utilization of building-integrated renewable energy and distributed energy resources (DER). To enhance the utilization of DER, previous literature proposed the concept of an integrated community energy system (ICES). This research suggested using superblocks (units of multiple urban blocks) to define geographical limits, social contexts, and possibly common administrations for ICESs along with other living- and sustainability-related activities in an urban context. Through interviews with key stakeholders and an analysis, this research investigates the applicability of the superblock-ICES as a way of reaching the low-carbon objectives in the Hiedanranta brownfield development project in the city of Tampere, Finland. This research confirms that the driving forces of community-based solutions are economic benefits, technical development, and objectives of sustainability, and reveals or confirms that social acceptability, missing planning practices, economic risk, and missing or hindering legislation are the main issues or barriers of superblock-ICESs. For a wider adoption of superblock-ICESs, this research suggests cross-disciplinary piloting, together with developing planning practices and simulation tools. In Finland, legislative reforms are needed to remove the barriers and clarify issues related to security, reliability, customer protection, and public interest in governing a locally and collectively owned energy system.
Ancient Environmental Preference and the Site Selection Pattern Based on the Edge Effect and Network Structure in An Ecosystem
Authors: Zhu Jianfeng , Yu Lijun , Nie Yueping , Liu Fang , Sun Yu , Zhang Yuanzhi , Song Wenping
Published: December 2019

Archaeological sites are facing serious threats from environmental changes in the background of urban sprawl. More efforts are needed to enhance the cognition of human–environment interactions for better conservation. Under the traditional geomantic view, the environmental preference involved was presented to guide ancient life. In this study, we analyzed the edge effect and network structure of two periods in an ecological transition zone where the ancient sites were located. From the cases of Gouzhang and Yinxian, the separability of edge intensity indicated the different site selection patterns because of the discrepancy of patch fragmentation and ecological structure. Additionally, the different trends of the edge effect were thought to be related to the complexity of the ecological network. Besides that, the ancient cities located in or around the high-centrality terrain in the network of closed space could have provided the convenience of accessing living materials from early ecosystems. In practice, the comprehensive methods based on geomantic and ecological analysis proved effective when used to explore possible areas of the undiscovered archaeological sites. What is more important is that traditional environmental perceptions could be integrated into a scientific system of the ecological landscape and contribute more to archaeological research and the study of ancient culture.
Study on the Impact of the Objective Characteristics and Subjective Perception of the Built Environment on Residents’ Physical Activities in Fuzhou, China
Authors: Zhao Lizhen , Shen Zhenjiang , Zhang Yanji , Sheng Fubin
Published: December 2019

Many researchers have confirmed a correlation between the built environment and physical activity. However, most studies are based on the objective characteristics of the built environment, and seldom involve the residents’ subjective perception. The purpose of this study is to explore the relationship between the subjective and objective characteristics of the built environment and physical activity at the community scale. Data consists of that collected from a social survey, Points of Interest (POI), the road network, and land use in Fuzhou, China. The duration of moderate-to-vigorous physical activity (MVPA) within a week is used to represent the general physical activity of residents. Security perception is introduced as an intermediary variable. SPSS software is used for factor analysis and Amos software for statistical analysis. Structural equations are set up to analyse the relationship between these variables. The final results show that: (1) The objective characteristics of the built environment have no direct impact on the development of leisure MVPA, but it can indirectly affect leisure MVPA through residents’ subjective perception of the built environment; (2) The subjective perception of residents has a significant impact on the duration of MVPA, the subjective perception of humanized space has a direct impact on the duration of MVPA, and destination accessibility and urban environment maintenance has an indirect impact through community public security perception; and (3) The individuals’ attributes such as gender and self-evaluated socioeconomic status have negative effects on the duration of leisure MVPA, and an individual’s love of sports has a positive effect on MVPA.
The Antecedents of Tourists’ Behavioral Intentions at Sporting Events: The Case of South Korea
Authors: Jeong Yunduk , Yu Andrew , Kim Suk-Kyu
Published: December 2019

Mega-sporting events can bring diverse benefits to the hosting areas, such as job creation and image improvement. However, only a handful of studies have explored the antecedents of destination image—which plays a crucial role in eliciting certain tourist behaviors—and personal involvement. To fill this gap, this study evaluates the relationships among personal involvement, destination image, place attachment, and behavioral intentions in the context of sporting event tourism to provide destination managers useful information for sustainable sports tourism development. We gathered information from 374 international tourists at the FINA (Fédération Internationale de Natation—International Swimming Federation) World Masters Championships Gwangju 2019 in South Korea. We used structural equation modeling was used along with maximum likelihood estimation to examine the predicted relationships. The findings show the positive impacts of (a) personal involvement on destination image, (b) destination image on place attachment, and (c) place attachment on behavioral intentions. Furthermore, (d) place attachment dictated the relationship between destination image and behavioral intentions. The findings confirm the significant role personal involvement plays in the improvement of a destination’s image. To ensure sustainable sports tourism, destination managers are advised to pay close attention to research findings on destination image in the development of their plans.
The Effect of Direct Payment on the Prevention of Farmland Abandonment: The Case of the Hokkaido Prefecture in Japan
Authors: Shin Mika Wakamatsu , Kim Brian H. S.
Published: December 2019

Farmland exhibits multifunctionality by preventing flooding and soil erosion and providing social and cultural community comfort. All these functions are essential for sustainable rural development. However, the multifunctionality of farmland is decreasing worldwide because of an aging society, depopulation and income disparity between flat lands and hilly mountainous lands. Regarding the consequences of abandonment, abandonment is intimately linked with the wider issue of the stagnation of the rural economy. The direct payment policy for hilly mountainous land is aimed at restraining farmland abandonment through community-based activities. The panel data difference in differences (DID) estimator was employed to observe the effect of direct payments on the rate of restraining farmland abandonment at the municipality level of the Hokkaido prefecture in Japan for the period of 2005–2015. We estimated that the direct payment implementation provided a 2% effectiveness for restraining the increase in the rate of abandonment as the result of DID estimation. On the other hand, the age group of 65 years or older was negatively correlated with farmland abandonment, which contradicts the general understanding. Older farmers have relatively more interest in contributing to and preserving their community. Therefore, the direct payment can encourage them to participate more in their community preservation. From these results, we concluded that it is necessary to promote farmland consolidation to compensate for the lack of inheritors. In addition, providing direct payment for a well-organized community or active stakeholders can be an effective way of utilizing governmental budgets and sustaining rural development.
Suppressing Cyanobacteria with Hydrogen Peroxide Is More Effective at High Light Intensities
Authors: Piel Tim , Sandrini Giovanni , White Emily , Xu Tianshuo , Schuurmans J. Merijn , Huisman Jef , Visser Petra M.
Published: December 2019

Hydrogen peroxide (H2O2) can be used as an emergency method to selectively suppress cyanobacterial blooms in lakes and drinking water reservoirs. However, it is largely unknown how environmental parameters alter the effectiveness of H2O2 treatments. In this study, the toxic cyanobacterial strain Microcystis aeruginosa PCC 7806 was treated with a range of H2O2 concentrations (0 to 10 mg/L), while being exposed to different light intensities and light colors. H2O2 treatments caused a stronger decline of the photosynthetic yield in high light than in low light or in the dark, and also a stronger decline in orange than in blue light. Our results are consistent with the hypothesis that H2O2 causes major damage at photosystem II (PSII) and interferes with PSII repair, which makes cells more sensitive to photoinhibition. Furthermore, H2O2 treatments caused a decrease in cell size and an increase in extracellular microcystin concentrations, indicative of leakage from disrupted cells. Our findings imply that even low H2O2 concentrations of 1–2 mg/L can be highly effective, if cyanobacteria are exposed to high light intensities. We therefore recommend performing lake treatments during sunny days, when a low H2O2 dosage is sufficient to suppress cyanobacteria, and may help to minimize impacts on non-target organisms.
Looking for the X Factor in Bacterial Pathogenesis: Association of orfX-p47 Gene Clusters with Toxin Genes in Clostridial and Non-Clostridial Bacterial Species
Authors: Nowakowska Maria B. , Douillard François P. , Lindström Miia
Published: December 2019

The botulinum neurotoxin (BoNT) has been extensively researched over the years in regard to its structure, mode of action, and applications. Nevertheless, the biological roles of four proteins encoded from a number of BoNT gene clusters, i.e., OrfX1-3 and P47, are unknown. Here, we investigated the diversity of orfX-p47 gene clusters using in silico analytical tools. We show that the orfX-p47 cluster was not only present in the genomes of BoNT-producing bacteria but also in a substantially wider range of bacterial species across the bacterial phylogenetic tree. Remarkably, the orfX-p47 cluster was consistently located in proximity to genes coding for various toxins, suggesting that OrfX1-3 and P47 may have a conserved function related to toxinogenesis and/or pathogenesis, regardless of the toxin produced by the bacterium. Our work also led to the identification of a putative novel BoNT-like toxin gene cluster in a Bacillus isolate. This gene cluster shares striking similarities to the BoNT cluster, encoding a bont/ntnh-like gene and orfX-p47, but also differs from it markedly, displaying additional genes putatively encoding the components of a polymorphic ABC toxin complex. These findings provide novel insights into the biological roles of OrfX1, OrfX2, OrfX3, and P47 in toxinogenesis and pathogenesis of BoNT-producing and non-producing bacteria.
The Legacy of Einstein’s Eclipse, Gravitational Lensing
Authors: Cervantes-Cota Jorge , Galindo-Uribarri Salvador , Smoot George
Published: December 2019

A hundred years ago, two British expeditions measured the deflection of starlight by the Sun’s gravitational field, confirming the prediction made by Einstein’s General Theory of Relativity. One hundred years later many physicists around the world are involved in studying the consequences and use as a research tool, of the deflection of light by gravitational fields, a discipline that today receives the generic name of Gravitational Lensing. The present review aims to commemorate the centenary of Einstein’s Eclipse expeditions by presenting a historical perspective of the development and milestones on gravitational light bending, covering from early XIX century speculations, to its current use as an important research tool in astronomy and cosmology.
Estimation of Soil Erosion and Sediment Yield in the Lancang–Mekong River Using the Modified Revised Universal Soil Loss Equation and GIS Techniques
Authors: Chuenchum Pavisorn , Xu Mengzhen , Tang Wenzhe
Published: December 2019

The Lancang–Mekong River basin, as an important transboundary river in Southeast Asia, is challenged by rapid socio-economic development, especially the construction of hydropower dams. Furthermore, substantial factors, such as terrain, rainfall, soil properties and agricultural activity, affect and are highly susceptible to soil erosion and sediment yield. This study aimed to estimate average annual soil erosion in terms of spatial distribution and sediment deposition by using the revised universal soil loss equation (RUSLE) and GIS techniques. This study also applied remote sensing and available data sources for soil erosion analysis. Annual soil erosion in most parts of the study area range from 700 to 10,000 t/km2/y with a mean value of 5350 t/km2/y. Approximately 45% of the total area undergoes moderate erosion. Moreover, the assessments of sediment deposition and erosion using the modified RUSLE and the GIS techniques indicate high sediment erosion along the flow direction of the mainstream, from the upper Mekong River to the Mekong Delta. The northern part of the upper Mekong River and the central and southern parts of the lower Mekong River are the most vulnerable to the increase in soil erosion rates, indicating sediment deposition.
Saung Angklung Udjo: Wisata dan Pelestarian Budaya
Authors: Susanti Santi , Sjuchro Dian Wardiana
Published: December 2019

Introducing traditional art to millennials is not easy, because it requires innovation and the ability to adapt to current conditions. Saung Angklung Udjo (SAU) has succeeded in breaking the boundary through performing arts that are held in Saung as well as in several events at home and abroad. This paper aims to describe the struggle of Udjo Ngalagena to make traditional music known and sought after by the world community and how Saung Angklung can become a cultural tourism destination that has a role in preserving traditional culture. Using the qualitative-fenomenology method, data were obtained through interviews, observations and documents and literature related to Saung Angklung Udjo. Based on data processing results, as a tourist location, SAU has become a cultural tourism destination that introduces the cultural of Sundanese people in the form of art, especially angklung, through performances by children and teenagers accompanied by angklung music. There are also bamboo craft workshops and the Bamboo Crafts Center Shop which provides bamboo handicraft merchandise that visitors can buy. As a cultural preservation area, SAU performs regularly and pass down cultural traditions to children by educating them Sundanese art and angklung traditions for free. The children will perform in the show, given honorariums until given tuition assistance. Saung Angklung was established as Udjo's effort to unite the love of children, traditional arts, flora and fauna, nature, and environment into harmony, which is comfortable to see, hear and feel
Perda da hegemonia da imprensa - a disputa pela visibilidade na eleição de 2018
Authors: Alves dos Santos Junior Marcelo , De Albuquerque Afonso
Published: December 2019

O poder de negociar e distribuir atenção é um recurso essencial para os meios de comunicação. Durante períodos eleitorais, a exposição midiática tradicionalmente era construída por duas lógicas institucionalizadas: a do jornalismo e da política. Na internet, todavia, outros atores ocupam a cena para criar e circular conteúdos. A disputa pela visibilidade em mídias sociais envolve fontes jornalísticas, políticos, partidos, movimentos sociais, além de veículos jornalísticos nativos digitais, blogueiros e atores emergentes que desafiam as classificações. O objetivo desse artigo é comparar os compartilhamentos obtidos por veículos da imprensa com páginas de esquerda e de direita no Facebook. Esta pesquisa investiga 82.915 publicações realizadas por 30 fan-pages no Facebook durante a eleição de 2018 para compreender o rearranjo do estatuto da visibilidade no sistema midiático híbrido. Resultados indicam que veículos da imprensa jornalística tradicional convertem boa parte de sua audiência para o Facebook e possuem a maior média de seguidores entre as categorias estudadas. A média de compartilhamento, no entanto, é consideravelmente menor, sugerindo uma ameaça à sua hegemonia da concentração da atenção do público. Ao final do artigo, discutimos as implicações dos achados para a comunicação político-eleitoral, indicamos limitações e apontamos possíveis caminhos para outras pesquisas.
Gelsolin and Related Proteins in Vertebrate Model Organisms
Authors: MIGOCKA-PATRZAŁEK Marta , NIEDBALSKA-TARNOWSKA Joanna , GARBIEC Arnold , DUBIŃSKA-MAGIERA Magda , DACZEWSKA Małgorzata
Published: December 2019

Gelsolin, encoded by the Gsn gene, is a highly conserved actin-binding protein detected in all studied eukaryotic organisms. Gelsolin is the founding member of the gelsolin superfamily of proteins, whose main functions are binding, severing, and capping actin filaments. Moreover,
gelsolin is engaged in apoptosis regulation, signal transduction, and embryonic development. Gelsolin is also implicated in some human diseases such as Alzheimer disease and familial amyloidosis of the Finnish type (FAF). Because of its multifunctionality, gelsolin is a potential candidate
for diverse therapeutic applications. Most of our knowledge about gelsolin superfamily proteins comes from investigations conducted on vertebrate model organisms such as zebrafish (Danio rerio), African clawed frogs (Xenopus laevis), chickens (Gallus gallus), and mice
(Mus musculus). Here, we present fundamental findings as well as new knowledge to indicate main research directions and future possibilities. Different model organisms provide specific possibilities and present particular advantages. However, all of them give useful data, which allow
us to gain a better understanding of the function of gelsolin and related proteins.
AN OVERVIEW ON TOPOLOGY OPTIMIZATION METHODS EMPLOYED IN STRUCTURAL ENGINEERING
Authors: YUKSEL Osman
Published: December 2019

Any mechanical performance measure of a structure is
strongly related with its topology. Size and shape optimization cannot give the
best structural performance, since these methods cannot change the
structure’s topology. Hence, topology optimization should be employed to obtain
the best performance. In this paper, a review of topology optimization is
provided. At first, the general topology optimization problem is defined. Then,
modern topology optimization methods are presented and discussed.
BİLGİ GÜVENLİĞİ TEHDİTLERİ: YAZILIM TANIMLI AĞLAR GELENEKSEL BİLGİSAYAR AĞLARINA KARŞI
Authors: YAVUZ Abdullah , TUNA Gürkan
Published: December 2019

Yazılım tanımlı ağlar bakım, maliyet ve yönetim kolaylığı açılarından avantajlara sahiptir. Öte yandan, geleneksel bilgisayar ağları uzun yıllardır bilgi güvenliği tehditleri açısından sınanmış olmakla birlikte gerçek saha uygulamalarında yazılım tanımlı ağlar üzerinde yapılan çalışmalar nispeten azdır. Yazılım tanımlı ağların bilgi güvenliği tehditleri açısından ele alınmasının özellikle ağ yöneticileri için kritik önem taşıdığı dikkate alınarak, bu çalışmada yazılım tanımlı ağlar ile geleneksel bilgisayar ağlarının bilgi güvenliği tehditlerine karşı zafiyetleri değerlendirilmiş ve çözüm önerileri sunulmuştur. Gerçekleştirilen benzetim çalışmalarında IP Spoofing, SYN Flood, RST/FIN Flood, SYN-ACK Flood, UDP Flood, ARP Poisoning ve Distributed Denial of Service saldırıları gerçekleştirilmiştir. Gerçekleştirilen benzetim çalışmalarının sonuçları, geleneksel bilgisayar ağlarına kıyasla ARP Poisoning saldırısı dışında yazılım tanımlı ağların daha fazla güvenlik zafiyeti taşıdığı görülmektedir. Ancak alınacak bazı tedbirler ile potansiyel birçok bilgi güvenliği saldırısının etkileri ortadan kaldırılabilir veya azaltılabilir.
Memaknai Penyelamatan Zipora terhadap Rencana Pembunuhan Musa oleh Tuhan
Authors: Panjaitan Firman
Published: December 2019

In the Bible it is often found a difficult part to understand, especially in this paper about the plan of the Lord who wanted to kill Moses. Even if you look deeper, Moses is a person sent by the LORD to free the nation of Israel from occupation in Egypt. This section needs to be examined more deeply, so that it can be searched for what is the basis of this action of the Lord, and at the same time what theological meanings are contained in this section, which are also relevant to present life. Through word study research efforts, it can be found that the plan of the Lord to kill Moses was not a playful plan, but it was a truly serious plan. But all these plans could be failed because Zipporah, the wife of Moses, succeeded in making atonement with the LORD through the foreskin of Moses 'son who was affixed to Moses' pubic. This indicates that the Lord's plan occurred because Moses was negligent in keeping his holiness, which is to circumcise his child. Holiness is the most important thing in carrying out all forms of service and call of God. If this holiness was ignored, then it could be that the Lord's plan to send someone turned into the anger of the LORD against the one sent.Abstrak: Dalam Alkitab seringkali dijumpai bagian yang sulit untuk dipahami. Terkait dengan tulisan ini, bagian yang sangat sulit itu adalah tentang rencana TUHAN yang hendak membunuh Musa. Padahal kalau dilihat lebih dalam lagi, Musa adalah orang yang diutus oleh TUHAN untuk membebaskan bangsa Israel dari kerja paksa di Mesir. Bagian ini perlu untuk diteliti lebih dalam lagi, agar dapat dicari apa yang menjadi dasar dari tindakan TUHAN ini, dan sekaligus ditarik makna teologi apa yang terkandung dalam bagian ini, yang juga relevan bagi kehidupan sekarang. Melalui studi kata, maka dapat dijumpai bahwa rencana TUHAN membunuh Musa bukanlah rencana yang main-main, tetapi merupakan rencana yang memang sungguh-sungguh. Namun semua rencana itu dapat digagal-kan karena ada Zipora, istri Musa, yang berhasil mengadakan upaya ‘pendamaian’ dengan TUHAN melalui kulit khatan anak Musa yang ditempelkan ke ‘kemaluan’ Musa. Ini menandakan bahwa rencana TUHAN itu terjadi karena Musa telah lalai dalam menjaga kekudusan dirinya, yaitu menyunatkan anaknya. Kekudusan meru-pakan hal terpenting dalam menjalankan segala bentuk pelayanan dan panggilan TUHAN. Apabila kekudusan ini diabaikan, maka bisa saja rencana TUHAN mengutus seseorang berubah menjadi kemarahan TUHAN terhadap yang diutus.
Comportamento espaço-temporal da precipitação pluviométrica distribuída no oeste do estado de São Paulo – Brasil
Authors: Rampazzi Karla Leticia Seviero
Published: December 2019

Tendo em vista a importância da água para vida, este trabalho visa apresentar um estudo voltado a precipitação pluviométrica distribuída no Oeste do Estado de São Paulo durante um período de 11 anos. Dessa forma, apoiado na metodologia dos ‘’anos padrão’’ de Monteiro (1973), foram estabelecidas classes de ano padrão seco, habitual e chuvoso, nas quais foram selecionados para análise de dados, os anos representativos com distintos comportamentos de 2012, 2014 e 2017. Dessa maneira Constatou-se em 2014 ano considerado seco uma produção de cana-de-açúcar abaixo daquela observada em 2017 ano chuvoso, onde houve maior produção como esperado.  Para isso, foram aplicadas técnicas de geoestatística apoiada à tecnologia SIG (Sistema de Informação Geográfica) a fim de espacializar estes dados, assim como dados da área plantada e da produção de cana-de-açúcar, tendo o intuito de expor a variabilidade espacial destes dois fenômenos e correlaciona-los.Palavras-chave: Cana-de-açúcar; Climatologia; Geoestatística.
Expediente
Authors: Mares Rizia Mendes
Published: December 2019

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Algunas reflexiones sobre la influencia de las migraciones europeas en los cementerios y panteones como espacios de memoria.
Authors: Castiglione Celeste
Published: December 2019

El presente trabajo analiza los cementerios como lugares específicos de la memoria importados a partir de la influencia europea en lo religioso y en la planificación de los espacios mediados por el Estado a fines del siglo XIX. En este recorrido que estamos realizando desde 2015 hasta el presente por 194 necrópolis, hemos elegido la del partido de Gral. Belgrano en la provincia de Buenos Aires que reúne elementos que nos ayudan a profundizar en las influencias estéticas, materiales y simbólicas, así como el concepto de memoria, que cristalizan la forma de ver el mundo y las representaciones de la muerte que tienen las asociaciones étnicas. Estas se conformaron, en su mayoría, a fines del siglo XIX y principios del XX, y gran parte de ellas consiguieron, a través de sus panteones funerarios, una suerte de embajada dentro de sus esquemas identitarios en donde se conmemora a sus fallecidos.
Strategies for Recruitment and Retention of Secondary Teachers in Central U.S. Rural Schools
Authors: Beesley Andrea D. , Atwill Kim , Blair Pamela , Barley Zoe A.
Published: December 2019

This study sought to identify differences in strategies used for teacher recruitment and retention by successful and non-successful rural high schools. According to data from the 2003-2004 Schools and Staffing Survey (SASS), small towns and rural areas in the central U.S. states did have relatively more difficuly in recruiting teachers than did larger communities. However, when the successful and unsuccessful school districts were compared on the strategies and benefits included in the SASS, the only difference was with signing bonuses, which were offered significantly more often in the unsuccessful group than the successful group. The researchers also interviewed seven principals identified as successful by their state agencies. Their responses revealed minimal reliance on the strategies addressed in the SASS. however, there was some alignment between many of the strategies they did use and the three approaches investigated in previous research: grow-your-own, using federal funding opportunities, and using targeted incentives.
An Examination of Resiliency in Rural Special Education
Authors: Zost Gregory C.
Published: December 2019

Retention of rural special education teachers is a dilemma for many school districts. Districts in rural areas suffer from a lack of qualified special educaiton teachers. Therefor, the problem of having enough qualified special educators is not easily solved. Many rural distrits are able to hire teacher candidaes, but fail to retain them for various reasons. Building resiliency in new teachers and educators during the first several years of teaching may be part of the answer to addressing the high rate fo teacher turnover in rural areas. This paper summarizes highlights from research completed with rural Nebraska teachers on th topics of intrinsic resiliency and building resiliency in rural teachers.
Meeting the Needs of Struggling Readers in High School: What are Rural Schools Doing?
Authors: Bursuck William D. , Robbins Susan , Lazaroff Kurt
Published: December 2019

Iplementing effective reading programs to meet the demans of the No Child Left Behind Act (NCLB) represents an immense challenge for all high schools, but the challenges for rural high schools may be particularly acute. Rural schools have large concentrations of children living in poverty, greater per-pupil costs and low fiscal capacity, all of which can make meeting the demands of NCLB difficult. The purpose of this article is to report the results of research that examined the question of what rural high schools are doing to meet the needs of their struggling readers. The results of focus groups from a rural high school in the southeastern United States and a state-wide survey of rural high schools also in the southeastern United States are reported. The implications of these findings for future practice in rural high schools are discussed.
Rural Superintendents' Perceptions of Principal Preparation
Authors: Cray Martha , Millen Elaine M.
Published: December 2019

As national and state expectations for school leadership comptencies increase, new principals face an ever expanding role. Yet, scant attention is paid to the unique contextual needs of the varied school settings in which principals find themselves. This study surveyed rural superintendents of small districts (1-300 students) and mid-sized rural districts (301-600 students) to discover their perceptions of the developmental needs their principals display. Seven areas of need were identified by the respondents, of which three pertained uniquely to the rural principalship. The three areas were: understanding the K-12 school structure, preparing for the isolation of rural life, and knowing how to provide instructional leadership in an environment of scares resources (human and material). The superintendents were also asked their perceptions of the effectiveness of various principal training program delivery models. Discusses the cohort program, online-training and state approved alternative certifiction.
In Situ Strength Assessment of Concrete using Maturity Method
Authors:   Department of Civil Engineering, R.M.K. Engineering College, Thiruvallur, India., J* Jenishtalouis. , Balki Sharanya ,   Department of Civil Engineering, R.M.K. Engineering College, Thiruvallur, India., Prathap R.Arun ,   Department of Civil Engineering, R.M.K. Engineering College, Thiruvallur, India., Simon Seena ,   Department of Civil Engineering, R.M.K. Engineering College, Thiruvallur, India.
Published: December 2019

There is a necessity for a modern method to evaluate the insitu strength of concrete thereby increasing the rate of productivity in concrete industry. This method can address immediate challenges faced such as predicting right time for formwork removal, post-tensioning, at low temperatures while the strength gain of concrete is hindered, optimizing concrete mix design and cold weather protection. The temperature is measured using wireless sensor that offers a simple solution to concrete maturity monitoring. The temperature and humidity on various days is observed. The compressive strength at 1,3,7,14 and 28 day is observed. This paper includes calculation of maturity index using Nurse-Saul equation. A graph is plot between maturity index and compressive strength. The best fit strength-maturity equation is chosen based upon the obtained curve and thereby the in-situ strength of concrete is evaluated.
Econometric Modelling: Testing of Randomness,Volatility, Casualty and Cointegration of Emerging Stock Market Indices of India and MIST Countries
Authors:   Chist Deemed To Be University, Bangalore (Karnataka), India, Sivarethinamohan* Dr. R. , Sujatha Dr. S. ,   K. Ramakrishnan College of Technology, Tiruchirappalli (Tamil Nadu), India.
Published: December 2019

In general, stock market indices are widely interrelated to the other global markets to detect the impact of diversification opportunities. The present research paper empirically examines randomness and long term equilibrium affiliation amongst the emerging stock market of India and Mexico, Indonesia, South Korea and Turkey from the monthly time series data during February 2008 to October 2019. The researcher employs by the way, Run test, Pearson’s correlation test, Johnsen’s multivariate cointegration test, VECM and Granger causality test with reference to post-September 2008 Global financial crisis. The test results of the above finds that Nifty 50 and BSE Sensex is significantly cointegrated either among themselves or with MIST countries particularly during the post-September Global financial crisis. No random walk is found during the study period. The ADF (Augmented Dickey-Fuller) and PP (Phillips Pearson) tests evidenced stationarity at the level, but converted into non-stationarity in first difference. Symmetric and asymmetric volatility behaviors are studied using GARCH, EGARCH and TARCH models in order to test which model has the best forecasting ability. Leverage effect was apparent during the study period. So the influx of bad news has a bigger shock or blow on the conditional variance than the influx of good news. The residual diagnostic test (Correlogram-Squared residuals test, ARCH LM test and Jarque-Bera test) confirms GARCH (1,1) as the best suited model for estimating volatility andforecasting stock market index.
Implementation of Smart Garbage Collection in Smart Cities
Authors:   Department of Electronics and Communications Engineering, Vardhaman College of Engineering,, Hyderabad, India., Krishna* Mr. M.Gopi , Akhil Inamdar ,   Department of Electronics and Communications Engineering, Vardhaman College of Engineering, Hyderabad, India.
Published: December 2019

Garbage management is a big challenging with increasing population whether in a developing or developed countries. The main problem in Garbage management is that the waste bin at public places gets overflowed well in advance before the cleaning process take place. Because of this provoke several diseases amongst the surrounding people. To avoid this and enhance cleaning process, my project “implementation of smart garbage system in smart cities” will help. My project use to detect level of garbage in bin like (0, 25, 75 and 100). In Each level of garbage in bin status will update on mobile application and led will indicate in front of bin, and we can track bin location depending on the garbage level in mobile application. Bin also has a camera for live streaming it will useful for identifying suspected persons and those who are not fallowing cleaning rules.