bluuebunny/crossref_metadata_2025 huggingface dataset:
Case Selection in the Russian Constitutional Court: The Role of Legal Assistants
Authors: Dzmitryieva Aryna
Published: August 2017

Constitutional courts throughout the world are highly selective in forming their agenda. Scholars who have studied the setting of agenda have not reached agreement on the role of legal clerks in this process. This article focuses on the role of the Secretariat of the Russian Constitutional Court in the case selection process. The Russian Constitutional Court receives about twenty thousand petitions annually. Nevertheless, only dozens of them are decided on their merits by judges. Through the description of the case movement process we show that the Secretariat does have at least moderate influence on case selection. Using data received from observation and interviews with the Court’s staff and judges, we find that legal assistants’ decision on whether to promote a case to judges is based on different logics of decision making. First, they are bound by legal requirements. However, bureaucratic logic and the logic of appropriateness can also influence the amount of incentives to promote cases to judges.
Exploration of the Structural, Electronic and Tunable Magnetic Properties of Cu4M (M = Sc-Ni) Clusters
Authors: Die Dong , Zheng Ben-Xia , Kuang Xiao-Yu , Zhao Zheng-Quan , Guo Jian-Jun , Du Quan
Published: August 2017

The structural, electronic and magnetic properties of Cu4M (M = Sc-Ni) clusters have been studied by using density functional theory, together with an unbiased CALYPSO structure searching method. Geometry optimizations indicate that M atoms in the ground state Cu4M clusters favor the most highly coordinated position. The geometry of Cu4M clusters is similar to that of the Cu5 cluster. The infrared spectra, Raman spectra and photoelectron spectra are predicted and can be used to identify the ground state in the future. The relative stability and chemical activity are investigated by means of the averaged binding energy, dissociation energy and energy level gap. It is found that the dopant atoms except for Cr and Mn can enhance the stability of the host cluster. The chemical activity of all Cu4M clusters is lower than that of Cu5 cluster whose energy level gap is in agreement with available experimental finding. The magnetism calculations show that the total magnetic moment of Cu4M cluster mainly come from M atom and vary from 1 to 5 μB by substituting a Cu atom in Cu5 cluster with different transition-metal atoms.
Modeling the Non-Equilibrium Process of the Chemical Adsorption of Ammonia on GaN(0001) Reconstructed Surfaces Based on Steepest-Entropy-Ascent Quantum Thermodynamics
Authors: Kusaba Akira , Li Guanchen , Von Spakovsky Michael , Kangawa Yoshihiro , Kakimoto Koichi
Published: August 2017

Clearly understanding elementary growth processes that depend on surface reconstruction is essential to controlling vapor-phase epitaxy more precisely. In this study, ammonia chemical adsorption on GaN(0001) reconstructed surfaces under metalorganic vapor phase epitaxy (MOVPE) conditions (3Ga-H and Nad-H + Ga-H on a 2 × 2 unit cell) is investigated using steepest-entropy-ascent quantum thermodynamics (SEAQT). SEAQT is a thermodynamic-ensemble based, first-principles framework that can predict the behavior of non-equilibrium processes, even those far from equilibrium where the state evolution is a combination of reversible and irreversible dynamics. SEAQT is an ideal choice to handle this problem on a first-principles basis since the chemical adsorption process starts from a highly non-equilibrium state. A result of the analysis shows that the probability of adsorption on 3Ga-H is significantly higher than that on Nad-H + Ga-H. Additionally, the growth temperature dependence of these adsorption probabilities and the temperature increase due to the heat of reaction is determined. The non-equilibrium thermodynamic modeling applied can lead to better control of the MOVPE process through the selection of preferable reconstructed surfaces. The modeling also demonstrates the efficacy of DFT-SEAQT coupling for determining detailed non-equilibrium process characteristics with a much smaller computational burden than would be entailed with mechanics-based, microscopic-mesoscopic approaches.
Separation of Molybdenite from Chalcopyrite in the Presence of Novel Depressant 4-Amino-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one
Authors: Yin Zhigang , Sun Wei , Hu Yuehua , Zhang Chenhu , Guan Qingjun , Zhang Chenyang
Published: August 2017

In this paper, 4-amino-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one (ATDT) was synthesized and introduced as a depressant for selective flotation separation of molybdenite from chalcopyrite. Its flotation performance and adsorption mechanism on minerals were first investigated by flotation, UV spectra, zeta potential, Fourier Transform Infrared Spectroscopy (FTIR), and X-ray Photoelectron Spectroscopy Measurements (XPS). The bench scale tests indicated that ATDT exhibited stronger depressing power than chalcopyrite, and the selective index of Mo/Cu improved significantly in the presence of ATDT. The results of the UV spectra, zeta potential and FTIR demonstrated that ATDT chemisorbed on the chalcopyrite surface. The XPS results further confirmed that ATDT might chemisorb onto the chalcopyrite surface through S and N atoms to form five-membered chelate rings and a postulated adsorption mode was presented. For molybdenite, the different measurements agreed well with each other and implied that ATDT might weakly physisorb onto a molybdenite surface.
Synthesis of 5′-GalNAc-Conjugated Oligonucleotides: A Comparison of Solid and Solution-Phase Conjugation Strategies
Authors: Cedillo Isaiah , Chreng Dana , Engle Elyse , Chen Lijian , McPherson Andrew , Rodriguez Andrew
Published: August 2017

Antisense oligonucleotides (ASOs) conjugated to triantennary N-acetyl galactosamine (GalNAc) ligands represent an emerging approach to antisense therapy. Our current generation of GalNAc-ASO conjugates link the GalNAc to the 5′-terminus of the ASO. The conjugation reaction can be accomplished using solution-phase or solid-phase techniques. Here we show a direct comparison of a solution-phase and a solid-phase conjugation strategy. The solution-phase approach, using amine-pentafluorophenyl (PFP) ester coupling, is higher yielding and gives material of slightly higher purity, but requires several additional unit operations and longer production time. The solid-phase approach, using a protected GalNAc ligand phosphoramidite, is more expedient, but results in lower yield and purity. Both strategies efficiently deliver conjugated material in excellent purity.
Correction: Gupta, P.M.; et al. Iron, Anemia, and Iron Deficiency Anemia among Young Children in the United States Nutrients 2016, 8, 330
Authors: Gupta Priya , Perrine Cria , Mei Zuguo , Scanlon Kelley
Published: August 2017

We would like to submit the following correction to our recently published paper [1] due to the error in classification of children as anemic [...]
Hydrogen-Bonded Polymer Complex Thin Film of Poly(2-oxazoline) and Poly(acrylic acid)
Authors: Su Chao , Sun Jiaxing , Zhang Xuejian , Shen Duan , Yang Shuguang
Published: August 2017

The hydrogen-bonded polymer complex thin film of poly(2-ethyl-2-oxazoline) (PEOX) and poly(acrylic acid) (PAA) was fabricated with layer-by-layer (LbL) assembly. The film shows exponential growth at early stage and transfers to linear growth after 10 assembling cycles, and the stable thickness increment per assembling cycle in the linear region could be higher than 100 nm. The film growth should be related with polymer chain diffusion during LbL assembly. The effects of assembling time, rinsing time, temperature, pH value, concentration and molecular weight on the thin film growth were investigated. Increasing the assembly time, the temperature and the concentration is favorable to produce the thick film. Prolonging rinsing time is good for preparing smooth film. The film can be constructed below pH 4.5 while the prepared film will not completely dissolve until pH value elevates to 7.0. Molecular weight has a subtle effect on the PEOX/PAA film growth. The PEOX-PAA pair that has a big molecular weight contrast shows fast film growth in the linear region.
Stochastic Bias Correction and Uncertainty Estimation of Satellite-Retrieved Soil Moisture Products
Authors: Lee Ju Hyoung , Zhao Chuanfeng , Kerr Yann
Published: August 2017

To apply satellite-retrieved soil moisture to a short-range weather prediction, we review a stochastic approach for reducing foot print scale biases and estimating its uncertainties. First, we discuss a challenge of representativeness errors. Before describing retrieval errors in more detail, we clarify a conceptual difference between error and uncertainty in basic metrological terms of the International Organization for Standardization (ISO), and briefly summarize how current retrieval algorithms deal with a challenge of land surface heterogeneity. As compared to relative approaches such as Triple Collocation, or cumulative distribution function (CDF) matching that aim for climatology stationary errors at time-scale of years, we address a stochastic approach for reducing instantaneous retrieval errors at time-scale of several hours to days. The stochastic approach has a potential as a global scheme to resolve systematic errors introducing from instrumental measurements, geo-physical parameters, and surface heterogeneity across the globe, because it does not rely on the ground measurements or reference data to be compared with.
Indoor Scene Point Cloud Registration Algorithm Based on RGB-D Camera Calibration
Authors: Tsai Chi-Yi , Huang Chih-Hung
Published: August 2017

With the increasing popularity of RGB-depth (RGB-D) sensor, research on the use of RGB-D sensors to reconstruct three-dimensional (3D) indoor scenes has gained more and more attention. In this paper, an automatic point cloud registration algorithm is proposed to efficiently handle the task of 3D indoor scene reconstruction using pan-tilt platforms on a fixed position. The proposed algorithm aims to align multiple point clouds using extrinsic parameters of the RGB-D camera obtained from every preset pan-tilt control point. A computationally efficient global registration method is proposed based on transformation matrices formed by the offline calibrated extrinsic parameters. Then, a local registration method, which is an optional operation in the proposed algorithm, is employed to refine the preliminary alignment result. Experimental results validate the quality and computational efficiency of the proposed point cloud alignment algorithm by comparing it with two state-of-the-art methods.
The Effect of Urbanization and Farmland Transfer on the Spatial Patterns of Non-Grain Farmland in China
Authors: Zhao Xiaofeng , Zheng Yuqian , Huang Xianjin , Kwan Mei-Po , Zhao Yuntai
Published: August 2017

Rapid urbanization has accelerated farmland transfer in China, which in turn has increased the cultivation intensity of non-grain farmland (NGF). The aim of this paper was to analyze the spatial patterns of non-grain farmland (NGF) at municipal-level cities in China from 2000 to 2014, and explore the influence of urbanization and farmland transfer on the spatial patterns of non-grain farmland (NGF). The study found that both NGF area and share have a consistent variation trend which increased first, then decreased, and increased again. There were great differences between NGF area and share, which had various spatial patterns. Global Moran’s I of NGF area and share had strong positive spatial autocorrelations in 2000, 2005, 2010, and 2014, and revealed remarkable clustered spatial patterns. Local spatial autocorrelation analysis found that the spatial agglomeration pattern of the NGF area and the share changed significantly from 2000 to 2014. The spatial patterns of NGF were significantly influenced by regional differences in urbanization and farmland transfer. These results provide critical insights for formulating differential farmland transfer policies and policies for sustainable development of agriculture and rural economy in China.
Employing SWOT Analysis and Normal Cloud Model for Water Resource Sustainable Utilization Assessment and Strategy Development
Authors: Gao Xueping , Chen Lingling , Sun Bowen , Liu Yinzhu
Published: August 2017

Water Resource Sustainable Utilization (WRSU) is becoming increasingly important, given growing water resource shortages and widening gaps between water supply and demand. Most existing studies have focused on WRSU levels without a dedicated strategy-oriented framework. In addition, uncertainties occur in the process of indicator quantification and grading, leading to a lack of accuracy in the assessment results. Therefore, in this study, stemming from water resource, societal, economic, and environmental dimensions, an indicator system with qualitative description was introduced by Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis to enable development and selection of sustainable water use strategies. A normal cloud model that is capable of addressing uncertainties was used to determine WRSU levels. The comprehensive evaluation results can both reflect the WRSU levels and select the most suitable strategy. The model’s utility was demonstrated by applying it to the case of Shandong province in China. Based on the results, most areas of Shandong province appear to be facing serious unsustainable issues. Appropriate development strategies based on the WRSU levels were provided for improving sustainable use of water resources. The proposed method offers an efficient means for WRSU assessment and strategy development. Moreover, it has the potential to be applied to other water resource issues.
Effects of the HN Antigenic Difference between the Vaccine Strain and the Challenge Strain of Newcastle Disease Virus on Virus Shedding and Transmission
Authors: Liu Jingjing , Zhu Jie , Xu Haixu , Li Juan , Hu Zenglei , Hu Shunlin , Wang Xiaoquan , Liu Xiufan
Published: August 2017

Newcastle disease (ND) leading to heavy economic losses to the poultry industry worldwide is caused by Newcastle disease virus (NDV). Even though intensive vaccination programs have been implemented in many countries, virulent NDV can still be frequently isolated in well-vaccinated flocks. We compared the protection efficiency of LaSota and two sub-genotype VIId vaccines, NDV/AI4 and NDV O/AI4, in which NDV O/AI4 was constructed by replacing the hemagglutinin–neuraminidase (HN) gene of the vaccine strain NDV/AI4 with that from the variant NDV strain JS-14-12-Ch by the cross hemagglutination inhibition test and immune protection test. The number of birds shedding the virus and the titer of the shedding virus from the challenged birds were tested to evaluate the protection efficiency in the immune protection test. The cross hemagglutination inhibition and neutralization tests between JS-14-12-Ch and the three vaccines displayed a significant antigenic difference between JS-14-12-Ch and LaSota or NDV/AI4, but not between JS-14-12-Ch and NDV O/AI4. The results of the immune protection test showed that NDV O/AI4 could provide improved protection as determined by a significant decrease in both the number of birds shedding the virus and the titer of the shedding virus from the challenged birds. The results in this study indicated that the antigenic similarity between the vaccine strain and the challenge strain is important in reducing the shedding of virulent virus in which the congruence of the NDV HN protein may play a critical role.
Ultrasonographic Enthesopathy and Disease Activity in Psoriatic Arthritis
Authors: Ahmed Mohieldin M. , Elolemy Gehan Gamal , Alfeeli Aziz K. , Baqer Ayyoub B. , Gad Adela M.
Published: August 2017

BACKGROUND: To our knowledge, the correlation between ultrasonographic enthesopathy and severity in psoriatic arthritis (PsA) has been done before. However, the correlation between ultrasonography of enthesopathy and the Psoriatic Arthritis Disease Activity Score (PASDAS) have not been done.AIM: To compare the results of ultrasonographic enthesopathy of foot and PASDAS in PsA.MATERIALS AND METHODS: A total of 65 PsA patients were involved and divided into two groups. The first group of 35 active PsA and the second group of 30 ages and sex matched inactive PsA as a control group were recruited in this study. Both groups were evaluated by examination, radiological findings and ultrasonography.RESULTS: Of 70 entheses in 35 active PsA patients, the most entheseal abnormalities were tender plantar fascia (18.5%), tender Achilles tendon (37.8%). PASDAS was a direct highly significant correlated with plantar fascia and Achilles tendon thickness in in active PsA (r = 0.823 and r = 0.796, p < 0.001 respectively).CONCLUSION: Musculoskeletal US is an accurate and low-cost method for assessment of enthesopathy with significant correlation to disease activities in psoriatic arthritis.
Serum Zinc Level and Its Correlation with Vesikari System Scoring in Acute Pediatric Diarrhea
Authors: Eskander Ayman E. , Sherif Lobna S. , Nabih Mohammad , El Baroudy Nevine R. , Marcos Ghobrial C. , Badawy Ehsan A. , El Rifay Amira S.
Published: August 2017

BACKGROUND: Diarrhea remains the most common infectious disease worldwide. Zinc has been studied extensively recently for its potential effect on prevention, control and treatment of acute diarrhoea.AIM: This study was designed to correlate the level of zinc with the severity of pediatric diarrhoea estimated by Vesikari Scoring System.PATIENTS AND METHODS: The present study included 80 children aged two months to 30 months from those suffering from the acute diarrheal episode and admitted to Pediatric Hospital "Abo El Rish" Cairo University. Serum Zinc level was assessed by a colorimetric method with a spectrophotometer.RESULTS: Zinc deficiency was detected in 45 (56.2%) patient of the studied group Significant negative correlations were found between serum zinc level and severity of dehydration and duration of hospitalization (p < 0.05).CONCLUSION: Zinc level has an essential role in acute pediatric diarrhoea. Zinc therapy should be considered beside Oral rehydration salts (ORS) to achieve maximum impact on diarrheal diseases; clinical trials are recommended to support the zinc supplementation in developing countries.
Penile Melanosis Associated with Lichen Sclerosus et Atrophicus: First Description in the Medical Literature
Authors: Tchernev Georgi , Chokoeva Anastasiya Atanasova , Mangarov Hristo
Published: August 2017

We present a 74-year-old male patient with 3-years history of visible discoloration of the glans penis, without subjective complaints. Histopathological examination after incision biopsy revealed a moderate increase in the number of melanocytes in the basal layer with irregular distribution, without melanocytic nests, melanophages in the superficial dermis, and subepidermal sclerosus. No cytologic atypia of melanocytes was detectable. The diagnosis of melanosis of the genitalia in association with lichen sclerosus was made. The importance of the presented cases implicated the unique clinical manifestation of penile melanosis, associated with lichen sclerosus of the penis in one hand, the essential differentiation between malignant melanoma via careful histological examination for diagnosis confirmation in other, in order to optimize the therapeutic behavior.
Evaluation of Macular Perfusion in Healthy Smokers by Using Optical Coherence Tomography Angiography
Authors: Ayhan Ziya , Kaya Mahmut , Ozturk Taylan , Karti Omer , Hakan Oner F.
Published: August 2017

BACKGROUND AND OBJECTIVE:

To investigate the macular perfusion changes in healthy smokers by using optical coherence tomography angiography (OCTA).

PATIENTS AND METHODS:

OCTA measurements were taken for the right eyes of 40 smokers (Group 1) and age- and sex-matched control cases (Group 2). Group 1 underwent OCTA scanning with the XR Avanti AngioVue OCTA (Optovue, Fremont, CA) at baseline and at 5 minutes, 30 minutes, and 60 minutes after one standard cigarette smoking. The same scanning protocol was applied without smoking in Group 2. Macular vessel area density, flow index of the choriocapillaris, foveal avascular zone (FAZ), and central macular thickness were evaluated in both groups.

RESULTS:

Group 1 consisted of 28 men and 12 women with a mean age of 41.2 years ± 9.1 years (range: 24 years to 63 years). The mean age of Group 2 was 42.6 years ± 8.4 years (range: 21 years to 65 years), which consisted of 28 men and 12 women. The mean baseline vessel area density, flow index of the choriocapillaris, FAZ, and central macular thickness showed no statistically significant differences between Groups 1 and 2. Although the flow index of choriocapillaris values were similar at the repetitive OCTA measurements in the control group (
P
> .05), it was decreased from 1.94 ± 0.06 to 1.89 ± 0.08, 1.90 ± 0.08, and 1.91 ± 0.07 at 5 minutes, 30 minutes, and 60 minutes following smoking, respectively, in Group 1 (
P
< .001).

CONCLUSION:

Smoking causes a significant decrease in the blood flow index of the choriocapillary area by the acute effects of nicotine and other chemical substances in cigarettes on peripheral vascular structure, as evaluated by OCTA.

[
Ophthalmic Surg Lasers Imaging Retina
. 2017;48:617–622.]
OCT Angiographic Findings in Glucose-6-Phosphate Dehydrogenase Deficiency
Authors: Jiang Shangjun , Choudhry Netan
Published: August 2017

Fovea plana (FP) describes the abnormal absence of the foveal pit in the retina. It is a sign that is associated with prematurity, albinism, and other ophthalmic disorders. The authors present the optical coherence tomography angiographic findings in a case of a 19-year-old male with FP and glucose-6-phosphate dehydrogenase (G6PD) deficiency. G6PD deficiency is a very common condition that typically presents with hemolytic anemia and jaundice. G6PD deficiency is also known to affect vision, but these pathologies have been less well-characterized. To the authors' knowledge, this is the first report of G6PD deficiency in FP.

[
Ophthalmic Surg Lasers Imaging Retina
. 2017;48:664–667.]
The use of genotoxicity biomarkers in molecular epidemiology: applications in environmental, occupational and dietary studies
Authors: Ladeira Carina , Smajdova Lenka
Published: August 2017

Molecular epidemiology is an approach increasingly used in the establishment of associations between exposure to hazardous substances and development of disease, including the possible modulation by genetic susceptibility factors. Environmental chemicals and contaminants from anthropogenic pollution of air, water and soil, but also originating specifically in occupational contexts, are potential sources of risk of development of disease. Also, diet presents an important role in this process, with some well characterized associations existing between nutrition and some types of cancer. Genotoxicity biomarkers allow the detection of early effects that result from the interaction between the individual and the environment; they are therefore important tools in cancer epidemiology and are extensively used in human biomonitoring studies. This work intends to give an overview of the potential for genotoxic effects assessment, specifically with the cytokinesis blocked micronucleus assay and comet assay in environmental and occupational scenarios, including diet. The plasticity of these techniques allows their inclusion in human biomonitoring studies, adding important information with the ultimate aim of disease prevention, in particular cancer, and so it is important that they be included as genotoxicity assays in molecular epidemiology.
Client and User Involvement Through BIM-Related Technologies
Authors: Ventura Silvia Mastrolembo , Ciribini Angelo L. C.
Published: August 2017

Building Information Modelling (BIM) is part of a wider digital innovation that has arrived as an epochal transition in the Architecture, Engineering and Construction (AEC) Industry. Although the benefits of BIM within the supply-side of the industry have been widely explored, its impact on the value for clients and end-users has been researched in a limited manner so far. The paper reviews some of the BIM-related technologies which could effectively support client and end-user involvement in the briefing process. Four main types of information technologies are considered and grouped as (1) rule-based validation tools (i.e. briefing software; rule-based model checking) and (2) simulation-based validation tools (i.e. gamification, immersive virtual environments). Those technologies are analysed and compared in order to identify what has already been done, possible future trends, evaluate their integration in the briefing process and, finally, take into account both their advantages and disadvantages in supporting the effective involvement of the demand-side of construction in digitally-enabled processes.
Performance Evaluation and Scheme Selection of Shot Boundary Detection and Keyframe Extraction in Content-Based Video Retrieval
Authors: Gu Lingchen , Liu Ju , Qu Aixi
Published: August 2017

The advancement of multimedia technology has contributed to a large number of videos, so it is important to know how to retrieve information from video, especially for crime prevention and forensics. For the convenience of retrieving video data, content-based video retrieval (CBVR) has got great publicity. Aiming at improving the retrieval performance, we focus on the two key technologies: shot boundary detection and keyframe extraction. After being compared with pixel analysis and chi-square histogram, histogram-based method is chosen in this paper. Then we combine it with adaptive threshold method and use HSV color space to get the histogram. For keyframe extraction, four methods are analyzed and four evaluation criteria are summarized, both objective and subjective, so the opinion is finally given that different types of keyframe extraction methods can be used for varied types of videos. Then the retrieval can be based on keyframes, simplifying the process of video investigation, and helping criminal investigation personnel to improve work efficiency.
Communication and Security Technologies for Smart Grid
Authors: Ben Dhaou Imed , Kondoro Aron , Kelati Amleset , Rwegasira Diana Severine , Naiman Shililiandumi , Mvungi Nerey H. , Tenhunen Hannu
Published: August 2017

The smart grid is a new paradigm that aims to modernize the legacy power grid. It is based on the integration of ICT technologies, embedded system, sensors, renewable energy and advanced algorithms for management and optimization. The smart grid is a system of systems in which communication technology plays a vital role. Safe operations of the smart grid need a careful design of the communication protocols, cryptographic schemes, and computing technology. In this article, the authors describe current communication technologies, recently proposed algorithms, protocols, and architectures for securing smart grid communication network. They analyzed in a unifying approach the three principles pillars of smart-gird: Sensors, communication technologies, and security. Finally, the authors elaborate open issues in the smart-grid communication network
Exploring Myths in Digital Forensics
Authors: Kessler Gary C. , Carlton Gregory H.
Published: August 2017

Digital forensic methodology deviates significantly relative to the methods of other forensic sciences for numerous practical reasons, and it has been largely influenced by factors derived from the inception and evolution of this relatively new and rapidly changing field. Digital forensics methodology was developed more by practitioners in its early days rather than by computer scientists. This led to accepted best practices in the field that may not represent the best or, at least, tested, science. This paper explores some of these differences in the practice and evolution between digital and other forensic sciences, and recommends scientific approaches to apply to many digital forensic practice rituals.
Time-of-Flight Cameras Enabling Collaborative Robots for Improved Safety in Medical Applications
Authors: Wendt Thomas M. , Himmelsbach Urban B. , Lai Matthias , Waßmer Matthias
Published: August 2017

Human-robot collaboration is being used more and more in industry applications and is finding its way into medical applications. Industrial robots that are used for human-robot collaboration, cannot detect obstacles from a distance. This paper introduced the idea of using wireless technology to connect a Time-of-Flight camera to off-the-shelf industrial robots. This way, the robot can detect obstacles up to a distance of five meters. Connecting Time-of-Flight cameras to robots increases the safety in human-robot collaboration by detecting obstacles before a collision. After looking at the state of the art, the authors elaborated the different requirements for such a system. The Time-of-Flight camera from Heptagon is able to work in a range of up to five meters and can connect to the control unit of the robot via a wireless connection.
Phase Synchronization Impact on Throughput Performance in LTE Network
Authors: Rajesh P.  , Madhusudana C.K.  , Nagarajan Prakash , Hanumantha Rakesh
Published: August 2017

This paper presents a study of phase synchronization impact on throughput in Long Term Evolution (LTE) network with different transport protocols. Phase synchronization is needed for advanced features in LTE and other precise technologies with minimal clock error of Nano seconds. An End to End LTE testing environment is built by using real User Equipment (UE) and LTE core network for studying the throughput impact due to Phase Synchronization in different transport modes. This experimentation is carried out for comparing the throughput of the system with Frequency Synchronization Mode (FM) and Frequency & Phase synchronization Mode (FPM). A novel study has been conducted on throughput for TCP and UDP traffic in different LTE bandwidths, based on real traffic conditions. The study shows that system performance in Uplink (UL) and Downlink (DL) throughput has improved by using Frequency along with Phase synchronization in LTE network using GPS as a clock source.
The Big Data Processing of HF Sky-Wave Radar Sea Echo for Detection of Sea Moving Targets
Authors: Lei Qianzhao , Wu Zhensen , Guo Lixin , Fan Junmei , Geng Senlin
Published: August 2017

A high-frequency (HF) sky-wave radar always monitoring large area of sea surface, for detecting sea surface moving objects, there must be big data waiting to be processed. A set of data processing methods were proposed, the successful implementation of HF sky-wave radar on the sea moving target detection. By setting the HF sky-wave radar parameters, after the initial data processing, the gotten HF sky-wave radar data were saved. Then a new HF sky-wave radar data processing method was provided, this method was the so-called three-step detection method (TSTM) which based on the constant false alarm rate (CFAR) technique. By using TSTM, setting the decision threshold G, with false alarms being ruled out, a moving target was detected out at last, its speed was calculated. The results also proved that TSTM could effectively reduce the sea clutter, and greatly lessen the echo-broadening and double-image caused by ionosphere contamination.
HDAC High-Dimensional Data Aggregation Control Algorithm for Big Data in Wireless Sensor Networks
Authors: Sun Zeyu , Ji Xiaohui
Published: August 2017

The process of high-dimensional data is a hot research area in data mining technology. Due to sparsity of the high-dimensional data, there is significant difference between the high-dimensional space and the low-dimensional space, especially in terms of the data process. Many sophisticated algorithms of low-dimensional space cannot achieve the expected effect, even cannot be used in the high-dimensional space. Thus, this paper proposes a High-dimensional Data Aggregation Control Algorithm for Big Data (HDAC). The algorithm uses information to eliminate the dimension not matching with the specified requirements. Then it uses the principal components method to analyze the rest dimension. Thus, the simplest method is used to reduce the calculation of dimensionality reduction as can as it possible. In the process of data aggregation, the self-adaptive data aggregation mechanism is used to reduce the phenomenon of network delay. Finally, the simulation shows that the algorithm can improve the performance of node energy-consumption, rate of the data post-back and the data delay.
Ethical Issues in Library and Information Science Profession in Nigeria: An Appraisal
Authors: Titilope Afolayan Oluyinka
Published: August 2017

Library and information science professional play an extremely important role in the society. However, in discharging their responsibilities and duties, core ethical principles are expected to be upheld by librarians and information workers as outlined in the professional codes of ethics. The aim of this paper is to appraise core ethical issues in library and information science profession in Nigeria. This paper discusses core ethical principle in library and information science profession such as universal access to information, intellectual property rights, intellectual freedom, copyright/fair use and privacy/confidentiality among others. This paper further identified ethical challenges confronting library and information science professionals in Nigeria. This paper concludes that regardless of the ethical challenges confronting library and information science professionals in Nigeria, the professional codes of ethics should be upheld.
Value Co-Creation in Archival Resources
Authors: Rahman Md. Mukhlesur , Ahmed Toufiq , Shirahada Kunio
Published: August 2017

The National Archives of Bangladesh (NAB) evolved to ensure official custody and physical safety to the archives of Bangladesh. NAB initiated a digitization programme to provide open access to archives. The study focused on different aspects of NAB's open access project in the light of value co-creation perspective. The study is based on review of literature, computation of secondary information and treatment of primary data collected through semi-structured interview. The study identified that all the value co-creation components are available in NAB's open access project but working framework is invisible. Hence, the study proposed a model for value co-creation through balancing resource security and user demand. Hence, the study may help software developers and other archival institutions in designing and implementing open access to their respective organizations' resources. This paper serves as an example to archival institutions that are in the beginning phases of open access research and development.
The Impact of Experiencing a Mobile Game on Teachers' Attitudes Towards Mobile Learning
Authors: Meishar-Tal Hagit , Ronen Miky
Published: August 2017

This paper describes a workshop held as part of preparations for a large scale implementation of a mobile game designed to support learning of the topic “my hometown”. The study reveals teachers' attitudes towards the incorporation of smartphones in teaching and learning in school and whether these attitudes changed after experiencing the game. The findings show that the attitudes of the teachers towards the game were positive in all aspects. They thought it was enjoyable, promoted collaboration and created motivation to win. The game was evaluated as contributing to knowledge and the application as easy to use. The study revealed that teachers' attitudes towards the use of smartphones for learning were changed after experiencing the game as participants. Perceptions about the potential of smartphones for learning strengthened and there has been an increase in the willingness to adopt them as part of the students' personal learning toolkit.
EOQ Model with Stock-Level Dependent Demand and Different Holding Cost Functions
Authors: Shukla H.S. , Tripathi R.P. , Sang Neha
Published: August 2017

This paper presents EOQ (Economic Order Quantity) model with stock- level dependent demand and different types of holding cost function. We show that the total relevant inventory cost per unit time is convex with respect to cycle time. Mathematical models are established to determine optimal order quantity and total relevant inventory cost. Numerical examples are provided for two different models i.e. (i): Instantaneous replenishment with inventory dependent holding cost and (ii) Instantaneous replenishment with quadratic time dependent carrying cost. Numerical examples are provided to illustrate the proposed model. Sensitivity analysis of the optimal solution with respect to the parameters of the system is carried out. The second order approximation is used for finding closed form optimal solution. Mathematica 5.2 software is used to find numerical results.
Multi-Objective Artificial Bee Colony Algorithm for Multi-Echelon Supply Chain Optimization Problem
Authors: Gupta Mayank , Kundu Anirban , Gupta Vipul
Published: August 2017

Supply Chain Management has become an integrated part of today's industries. Advancement in technology in this field is the key to the successful operation of businesses. Many techniques and algorithms have a risen dealing with the challenging problems of present industry. In this paper, we have deployed an Artificial Bee Colony algorithm to solve a multi-echelon, multi-objective supply chain problem. Also, we have explained the working of the algorithm while applying it to our problem through various mathematical formulations to get a set of results.
The Role of a Strategic and Sustainable Orientation in Green Supply Chain Management
Authors: Chu Kuo Ming
Published: August 2017

The environmental problems we're facing today, with their growing severity and increasingly global nature, are often referred to as humanity's greatest challenge. This paper develops a model that identifies the antecedents and outcomes associated with sustainable supply chain management linkage. The model starts by identifying two antecedents (internal and external orientation) that firms may adopt in order to cope with their sustainability goals. The hypotheses are tested based on the major survey data from 342 Taiwanese and Chinese public corporations. This study not only demonstrates that both the internal supply chain and external environmental orientation exert a positive on green SCM, sustainability orientation, and alliance performance, but also, more importantly, they delineate how green SCM is practiced. This study also sheds light on the role of a sustainable orientation in strategic supply chain alliance's performance, and builds a comprehensive conceptual framework that fills some key gaps in previous research.
Low Cost Recursive Localization scheme for High Density Wireless Sensor Networks
Authors: Bouhdid Badia , Akkari Wafa , Gannouni Sofien
Published: August 2017

While existing localization approaches mainly focus on enhancing the accuracy, particular attention has recently been given to reducing the localization algorithm implementation costs. To obtain a tradeoff between location accuracy and implementation cost, recursive localization approaches are being pursued as a cost-effective alternative to the more expensive localization approaches. In the recursive approach, localization information increases progressively as new nodes compute their positions and become themselves reference nodes. A strategy is then required to control and maintain the distribution of these new reference nodes. The lack of such a strategy leads, especially in high density networks, to wasted energy, important communication overhead and even impacts the localization accuracy. In this paper, the authors propose an efficient recursive localization approach that reduces the energy consumption, the execution time, and the communication overhead, yet it increases the localization accuracy through an adequate distribution of reference nodes within the network.
Cubios Transreality Puzzle as a Mixed Reality Object
Authors: Osipov Ilya V
Published: August 2017

The author proposes to establish a separate class of electronic mechanical puzzles being the object of “mixed reality”, presents a self-engineered example of such a device, and reviews similar devices produced by other developers. Close relationships of such devices with tangible user interfaces are described. A Cubios device is presented as an illustration of a mixed reality puzzle along with its variants developed by the author. The purpose of this paper is to present a new mixed reality device, review similar devices, propose the classification of such devices, identify their relationships with tangible user interfaces, and discuss the prospects of their development.
Sixth Sense Technology
Authors: AlKassim Zeenat , Mohamed Nader
Published: August 2017

This paper discusses recent and unique inventions in Human Computer Interaction (HCI). To that end, firstly the authors discuss the Sixth Sense Technology. This technology allows users to interact with virtual objects in the real world in a unique manner. It has a number of applications which are further discussed. Then the opportunities and challenges are discussed. Most importantly, a list of inventions in fields of Augmented Reality (AR) and Virtual Reality (VR) in the recent years are discussed, grouped and compared. These include the smart eye glasses, VR headsets, smart watches, and more. Future implications of all those technologies are brought into light considering the new advancements in software and hardware designs. Recommendations are highlighted for future inventions.
Evaluating Computer Games for the Professional Development of Teachers
Authors: Tüzün Hakan , Tepe Tansel , Güler Tülay Dargut , Özer Fatih , Uluçınar Volkan
Published: August 2017

This study aimed to analyse the usefulness of educational computer games in teachers' professional development. The study used the game Atlantis Remixed, which is intended to be a technologically rich and individualized learning environment. The study used formative research to demonstrate what works and what does not work for the use of educational computer games in teachers' professional development, and improvements to be made for this purpose in learning environments in Turkey, where schools are equipped with technologically rich learning and teaching environments as part of the FATIH (the Movement to Increase Opportunities and Technology) project. The study included ten participants. Of these, five were teachers who participated in the implementation, and five were instructional technology experts. The study found both positive and negative results with respect to the use of Atlantis Remixed for teachers' professional development and articulates the participants' opinions and suggestions.
A Framework of MLaaS for Facilitating Adaptive Micro Learning through Open Education Resources in Mobile Environment
Authors: Sun Geng , Cui Tingru , Guo William , Chen Shiping , Shen Jun
Published: August 2017

Micro learning becomes popular in online open learning and it is effective and helpful for learning in mobile environment. However, the delivery of open education resources (OERs) is scarcely supported by the current online systems. In this research, the authors introduce an approach to bridge the gap by providing adaptive micro open education resources for individual learners to carry out learning activities in a short time span. They propose a framework for micro learning resource customization and a personalized learner model, which are supported by education data mining (EDM) and learning analysis (LA). A service-oriented architecture for Micro Learning as a Service (MLaaS) is designed to integrate all necessary procedures together as a complete Service for delivering micro OERs, providing a platform for resource sharing and exchanging in peer-to-peer learning environment. Working principle of a key step, namely the computational decision-making of micro OER adaptation, is also introduced.
Spinal dysraphism controversies: AIIMS experiences and contribution
Authors: Mahapatra A.K.
Published: August 2017

A large series of split cord malformation (SCM). Over the last 22 years, we have operated more than 1500 patients of SD, of which over 450 are (SCM), and 300 are with various lipomatus malformations. About 55% type II and 45% type I SCM. A separate sub-classification of type I SCM (a,b,c and d), is presented which alter the surgical approach and influence the results. Overall improvement following surgery in patients with SCM was observed in 94%. Fifty percent patients improved and 44% remained stable. However, deterioration was noticed in 6%, mostly with composite type of SCM. A paradigm for management of SCM is provided taking into consideration also the author’s large experience.
Editorial
Authors: Mendonça José Carlos
Published: August 2017

http://dx.doi.org/10.5007/1980-3532.2015n13p1Trata-se de apresentação ao número 13 da Revista Em Debate (RED).
Pesquisa de campo sobre ensino de ciências sociais: alguns desafios metodológicos
Authors: Oliveira Amurabi , Ferreira Vanessa Rego , Búrigo Beatriz Demboski , Boin Felipe
Published: August 2017

http://dx.doi.org/10.5007/1980-3532.2015n13p13Este trabalho busca analisar os desafios encontrados ao realizar pesquisas em campo na área do Ensino de Sociologia, o que será realizado por meio de um breve balanço acerca da utilização de tal recurso nas pesquisas realizadas em nível de pós-graduação sobre esse tema, e na apresentação das dificuldades encontradas para a realização do trabalho de campo em duas diferentes pesquisas que envolvem o Ensino de Sociologia. Propõe-se aqui a discussão das dificuldades de acesso e de desenvolvimento dessas pesquisas junto às esferas de Secretarias de Educação, às escolas e aos professores da educação básica.
As vicissitudes do ensino de ciências sociais no Brasil: introdução ao dossiê Ensino de Ciências Sociais
Authors: Martins Lucinéia Scremin , Cigales Marcelo Pinheiro
Published: August 2017

http://dx.doi.org/10.5007/1980-3532.2015n13p2Esse texto tem como objetivo apresentar os artigos da primeira parte do Dossiê Ensino de Ciências Sociais, número 13, que trazem contribuições para o ensino e a pesquisa das ciências sociais. Refere-se, de maneira introdutória, a respeito do movimento dinâmico e acelerado das transformações na sociedade contemporânea, que vem exigindo reflexões e intervenções sistemáticas e coletivas, dos e nos contextos socioculturais e políticos, nos quais se insere o processo educacional. Apresentam-se os artigos com suas contribuições significativas que, a partir das ciências sociais e para as ciências sociais, problematizam e propõem questões fundamentais sobre os limites e possibilidades do ensino e da pesquisa nas Ciências Sociais.
A Comuna de Paris de 1871: análise conceptual e receção em Portugal
Authors: Ramalho Tiago
Published: August 2017

http://dx.doi.org/10.5007/1980-3532.2015n14p140A Comuna de Paris de 1871 representou, no quadro da segunda metade do século XIX, um evento significativo em vários âmbitos. Assinalando-se como um momento histórico original e amplamente noticiado, pretende-se discorrer em torno de um conjunto de problemáticas que visam demonstrar a particular relevância deste acontecimento, desde logo pela sucessão de ocorrências, pela atuação dos seus protagonistas ou, ainda, pelo impacto internacional do mesmo. Deste modo, importa considerar o seguinte: realizar um levantamento da produção teórica no intuito de analisarmos o conceito de revolução, procurando perceber em que medida a mesma é considerada por diferentes paradigmas, qual a sua relação com outros conceitos ou quais as características que a definem por excelência; num segundo momento, e no quadro de uma contextualização que verse sobre a Comuna de Paris de 1871, pretende-se aferir das possibilidade da mesma ser retratada enquanto revolução e apresentaremos os contornos da sua receção em Portugal.