bluuebunny/crossref_metadata_2025 huggingface dataset:
The Masters of Suspicion : The Wisdom of Supreme Masters
Authors: Simon John Christianto
Published: May 2020

Three masters of suspicion, i.e. Marx, Freud and Nietzsche, each spoke of a critical task in the realm of human action. Marx suspected that economic motives were often not to support life but instead to suppress it. Nietzsche suspected that religion only produced decadent and timid humans so they never became their true selves, hypocrites and like to scare others. Freud was suspicious of human subconscious motivation so that it must be seriously criticized in order to an action was truly born of compassionate political and social morality. These three masters present important pedagogic values ​​to be developed today, namely education for social change, education for empowerment and education to build a compassionate social and political morality.
Transition from freestanding SnO2 nanowires to laterally aligned nanowires with a simulation-based experimental design
Authors: Bürger Jasmin-Clara , Gutsch Sebastian , Zacharias Margit
Published: May 2020

In this study, we used simulations as a guide for experiments in order to switch freestanding nanowire growth to a laterally aligned growth mode. By means of finite element simulations, we determined that a higher volumetric flow and a reduced process pressure will result in a preferred laterally aligned nanowire growth. Furthermore, increasing the volumetric flow leads to a higher species dilution. Based on our numerical results, we were able to successfully grow laterally aligned SnO2 nanowires out of gold film edges and gold nanoparticles on a-plane sapphire substrates. In our experiments a horizontal 2-zone tube furnace was used. The generation of Sn gas was achieved by a carbothermal reduction of SnO2 powder. However, we observed no elongation of the nanowire length with an increase of the process time. Nevertheless, an alternating gas exchange between an inert gas (Ar) and an oxygen-containing process atmosphere yielded an elongation of the laterally aligned nanowires, indicating that the nanowire growth takes place in a transient period of the gas exchange.
Synthesis and properties of quinazoline-based versatile exciplex-forming compounds
Authors: Keruckiene Rasa , Vekteryte Simona , Urbonas Ervinas , Guzauskas Matas , Skuodis Eigirdas , Volyniuk Dmytro , Grazulevicius Juozas V
Published: May 2020

Three compounds, bearing a quinazoline unit as the acceptor core and carbazole, dimethyldihydroacridine, or phenothiazine donor moieties, were designed and synthesized in two steps including a facile copper-catalyzed cyclization and a nucleophilic aromatic substitution reaction. The photophysical properties of the compounds, based on theoretical calculations and experimental measurements, as well as the electrochemical and thermal properties, are discussed. The synthesized compounds form glasses with glass-transition temperatures ranging from 116 °C to 123 °C. The ionization potentials estimated by cyclic voltammetry of the derivatives were in the range of 5.22–5.87 eV. The 3,6-di-tert-butylcarbazole-substituted quinazoline-based compound forms a sky-blue emitting exciplex in solid mixture with the acceptor 2,4,6-tris[3-(diphenylphosphinyl)phenyl]-1,3,5-triazine as well as an orange emitting exciplex with the donor 4,4′,4″-tris[3-methylphenyl(phenyl)amino]triphenylamine. A white OLED based on these versatile exciplex systems with a relatively high maximum brightness of 3030 cd/m2 and an external quantum efficiency of 0.5% was fabricated.
DIRECTIONS FOR DEVELOPMENT AND IMPROVEMENT OF MISSILE ATTACK EARLY WARNING STATIONS
Authors: Bashynskyi V. , Garbuz М. , Pinchuk А. , Bohucharskyi V.
Published: May 2020

The article explains the current state of aviation armament and equipment protection from missile attacks. The necessity of improvement and ways of prospective development for aircraft protection systems are considered in the work. The analysis of the directions for solving the problem of detecting a missile attack on an aircraft is performed. There has also been given a solid consideration for methods and means for detecting the launch and flight of a missile in the infrared and ultraviolet band of electromagnetic waves.

The source of ultraviolet emission, in particular the additives of rocket fuel in the process of combustion, is considered. A brief description of the frequency bands of the spectrum of ultraviolet emission and their classification in accordance with the current regulations of Ukraine and the classification of the International Commission on Illumination (Fr.-CIE) is provided. Considerable attention is paid to the frequency band called "solar blind". The basic characteristics of the ultraviolet sensors of the Soviet and Russian production are given. A brief overview of the missile attack early warning stations of foreign production, mentioning the aircraft on which they are installed is performed. Operational characteristics’ features of these stations are described in a concise way. The specifications of early warning stations are also given. The necessity of close interaction of these stations with the means of countermeasures, with the prospect of full integration with the onboard aircraft defense complex is shown.
SUBSTANTIATION OF PERSPECTIVES OF USING THE LIBRARY OF COMPUTER VISION OpenCV IN THE DEVELOPMENT OF SOFTWARE FOR PROCESSING VIDEO INFORMATION TESTS
Authors: Yermolenko F. , Zozulia V. , Ryzhkov V.
Published: May 2020

The article highlights the practicability of developing our own software for processing video information obtained during testing of weapons and military equipment (WME) specimens. To obtain measurement information of processes which are distributed in space and time, namely: motion trajectories, velocity, acceleration of the object, propagation of gun muzzle blast ejection, dynamics of explosion of ammunition of various purposes.

The basic operations of video information processing were outlined:

1) perspective correction;

2) compensation (correction) of distortion (optical effect "fish eye”);

3) scale determination of the video material’s frame;

4) conducting of static measurements;

5) position determination of the image object in a sequence of video stream’s frames.

A brief overview of major open-access computer libraries (Accord.NET, VXL (Vision-something-Libraries), OpenCV (Open Source Computer Vision Library)) were conducted.

To demonstrate how the above operations were performed by the OpenCV library, examples of the results of using it in Kinovea program were presented.

An analysis of the popularity of computer vision libraries was conducted, which made it possible to assess the prospects for their further development and information support.

The rationale for using OpenCV in software was fulfilled, that can be developed to process the video information obtained during testing of weapons and military equipment specimens.
SPECIAL ASPECTS OF THE PARAMETERS ASSESSMENT OF COMMUNICATION CHANNELS OF UNMANNED AERIAL SYSTEMS CLASSI AND II
Authors: Ilienko V. , Isachenko O. , Los A. , Gerashchenko M. , Rudnichenko S.
Published: May 2020

Considering the lack of standard test methods for communication channels of modern unmanned aerial systems (UAS) class I and II, according to the UAS classification of the Armed Forces of Ukraine, it was decided to work out the basic approaches for determining indicators, conditions and procedure for conducting tests in this direction. The suggested methodological recommendations will improve the quality of the parameters and characteristics assessment for communication channels of UAS I and II classes.

One of the distinctive trends in the development of modern forms and methods of conducting armed combat at all stages of the armed conflict is the widespread use of the UASs by opposing parties. UASs are capable of significant increasing the effectiveness of accomplishing aerial reconnaissance tasks, organizing electronic warfare, and providing real-time delivery of target pinpointing to fire means for the destruction of enemy’s manpower and material.

A distinctive feature of UAS is that its external crew, as a rule, accomplish its mission at a considerable distance from the objects of attack. This fact significantly reduces the security risks and threats associated with performing combat missions under conditions of active enemy counteraction. Due to this feature, considerable attention is paid to the development of a reliable communication system that would be able to ensure task accomplishment at the maximum distance from command and control site.

During the tests of UAS Class I and II, the specialists of the State Scientific Research Institute of Armament and Military Equipment Testing and Certification used testing methods of radio channels assessment, which will allow to improve the quality of UAS research of this type and give the manufacturers recommendations for increasing their capabilities.
REVIEW OF THE GLIDE INDICATOR LIGHTS, ANALOGUES OF WHICH ARE PROPOSED TO BE INSTALLED AT THE AERODROMES OF THE STATE AVIATION OF UKRAINE
Authors: Pinchuk A. , Zelenyi P. , Soboliev V.
Published: May 2020

The article addresses the issues of improving the flight operating safety of aircraft at the landing approach stage and the significance of radio-technical support (including such its component part as lighting equipment) for fulfilling this mission. The state of equipping of the aerodromes of the State Aviation of Ukraine with lighting equipment that would meet compliance with modern requirements was analyzed. The expediency of bringing the characteristics of aviation technology to the requirements of the International Civil Aviation Organization (ICAO) by its equipping with appropriate equipment of domestic and foreign production was confirmed. The issues of the relevance of research on equipping of the aerodromes of the State Aviation of Ukraine with lighting equipment that would meet the minimum requirements of ICAO (International Civil Aviation Organization) were covered. Capabilities of the military-industrial complex of Ukraine in the sphere of development and manufacturing of ground-based lighting facilities for landing using an element base that is employed in the Armed Forces of Ukraine were investigated. The general purpose of the lighting facilities of the aerodrome was given. Critical conditions under which the use of a glide visual indication system that leads to improved flight safety of aircraft at the approach stage were covered and summarized. Varieties of the glide visual indication systems, analogues of which can be used at the airfields of the State Aviation of Ukraine without significant changes in the existing circuits of lighting equipment, were considered. The typical layouts of the glide visual indication systems were given. The requirements for the manufacturing, installation of the wing bar and the algorithm for determining the position of the aircraft relative to the glide by crew were considered.
MODELING OF THE FRAME STRENGTH OF THE MISSILE AND BOMBING GEAR OF THE Мi-8МСБ-В HELICOPTER IN THE TEST PROCESS
Authors: Sergienko A. , Chupryna V. , Kholodnyi R.
Published: May 2020

The problem of ensuring the frame strength of missile and bombing gear of the Ми-8МСБ-В helicopter pylon in the course of testing is considered. The methods of calculation of the frame strength at maximum load are developed to solve this problem; as well as modeling of design for the main operating modes of the helicopter is conducted.

Previously, on the basis of force factors the loading coefficients of the helicopter on its operational modes are determined, particularly in combat use (dive with a volley of missiles and bombing).

While conducting modeling the advanced methods of calculating the design of the frame strength parameters were applied, i.e. the analytical manual calculation and computational programs of computer-aided design (CAD). Manually calculating the forces and stresses in the framework (using cut nodes) the frame was idealized as rod model with hinged connections of the elements in the nodes A system of equations for each node was formed, which were solved in MathCAD. In the automated calculation of forces and stresses in the design of the frame the finite element method was implemented, which is used in WinMachine programs and SolidWorks Modeling.

The mathematical modeling of the frame was made at the maximum anticipated in-flight loads for determination the critical force and the maximum stress in the construction elements. In addition, the analysis for the redundant deformation was carried out.

Performed calculations, mathematical and simulation modelling proved that the necessary strength requirements are met for all the elements of the frame under its maximum load in all flight operational modes.
Determination of Effect of Well Parameters Using Pressure Derivative for Horizontal Wells in Layered Reservoir
Authors: John Oloro
Published: May 2020

Effect of well parameters using pressure derivative distribution of horizontal wells in a layered reservoir which is subjected simultaneously by two drives mechanism was carried out using source function.Results of the study shows that pay thickness hD, well length and wellbore radius of a particular layer affect the pressure derivative distribution .
Personal Orientation: The Silent Player in Efforts to Improve Treatment Seeking-Behavior Regarding Malaria in Uganda
Authors: Frank Ahimbisibwe B , Leon Matagi , Mohamed Senkumba , Privah Atuhaire
Published: May 2020

Uganda government and development partners have engaged in various communication activities and programs with a view to change people’s behaviors regarding malaria, mobilize communities and create an enabling environment for sound health practices. However, malaria has remained one of the leading causes of mortality and morbidity in Uganda. All players in the communications effort against malaria had a goal of reducing malaria-related mortality and morbidity by 70% by 2015. It was not clear whether this was achieved since another strategic objective proposed in 2015 was that at least 85% of the population should undertake correct practices in malaria prevention and treatment by 2017.
Acid Test of Ghana’s Educational Institutions Operating Distance Learning Programs
Authors: Koomson William K , Amanor-Mfoafo Naa Kai
Published: May 2020

The outbreak of the COVID-19 pandemic is an unprecedented blow to the Ghanaian Educational System. Following the closure of all educational facilities in Ghana in March 2020, the country’s President ordered for the adoption of distance learning. This poses the question: how prepared are Ghanaian institutions to carry out distance learning using online teaching approaches? Most institutions in Ghana offering distance learning programs currently adopt the usage of the tutorial method where there is minimal or no usage of online learning technologies. This article discusses the potential usage of mobile learning by Ghanaian Educational Institutions operating distance learning programs in the wake of combating the COVID-19. It proposes a model to support the use of WhatsApp Messenger as an online tool to support distance learning programs. The proposed model is a summary comparison between a typical Learning Management System (LMS) using Jurado’s classification and the proper application of the use of WhatsApp Messenger as a mobile learning platform in a Ghanaian context.
Star Formation Traced by Optical and Millimeter Hydrogen Recombination Lines and Free–Free Emissions in the Dusty Merging Galaxy NGC 3256—MUSE/VLT and ALMA Synergy
Authors: Michiyama Tomonari , Iono Daisuke , Nakanishi Kouichiro , Ueda Junko , Saito Toshiki , Yamashita Takuji , Bolatto Alberto , Yun Min
Published: May 2020

A galaxy–galaxy merger and the subsequent triggering of starburst activity are fundamental processes linked to the morphological transformation of galaxies and the evolution of star formation across the history of the universe. Both nuclear and disk-wide starbursts are assumed to occur during the merger process. However, quantifying both nuclear and disk-wide star formation activity is nontrivial because the nuclear starburst is dusty in the most active merging starburst galaxies. This paper presents a new approach to this problem: combining hydrogen recombination lines in optical, millimeter, and free–free emission. Using NGC 3256 as a case study, Hβ, H40α, and free–free emissions are investigated using the Multi Unit Spectroscopic Explorer at the Very Large Telescope of the European Southern Observatory (MUSE) and the Atacama Large Millimeter/submillimeter Array (ALMA). The Hβ image obtained by MUSE identifies star-forming regions outside the nuclear regions, suggesting a disk-wide starburst. In contrast, the H40α image obtained by ALMA identifies a nuclear starburst where optical lines are undetected due to dust extinction (A
V ∼ 25). Combining both MUSE and ALMA observations, we conclude that the total star formation rate (SFR) is 49 ± 2 M
⊙ yr−1 and the contributions from nuclear and disk-wide starbursts are ∼34% and ∼66%, respectively. This suggests the dominance of disk-wide star formation in NGC 3256. In addition, pixel-by-pixel analyses for disk-wide star-forming regions suggest that shock gas tracers (e.g., CH3OH) are enhanced where gas depletion time (τ
gas = M
gas/SFR) is long. This possibly means that merger-induced shocks regulate disk-wide star formation activities.
Titanium and Iron in the Cassiopeia A Supernova Remnant
Authors: Vance Gregory S. , Young Patrick A. , Fryer Christopher L. , Ellinger Carola I.
Published: May 2020

Mixing above the proto-neutron star is believed to play an important role in the supernova engine, and this mixing results in a supernova explosion with asymmetries. Elements produced in the innermost ejecta, e.g., 56Ni and 44Ti, provide a clean probe of this engine. The production of 44Ti is particularly sensitive to the exact production pathway and, by understanding the available pathways, we can use 44Ti to probe the supernova engine. Using thermodynamic trajectories from a three-dimensional supernova explosion model, we review the production of these elements and the structures expected to form under the “convective-engine” paradigm behind supernovae. We compare our results to recent X-ray and γ-ray observations of the Cassiopeia A supernova remnant.
Habitat requirements affect genetic variation in three species of mayfly (Ephemeroptera, Baetidae) from South Africa
Authors: Taylor Chantal L. , Barker Nigel P. , Barber-James Helen M. , Villet Martin H. , Pereira-da-Conceicoa Lyndall L.
Published: May 2020

This study investigates genetic diversity in three species of Ephemeroptera, one eurytopic and therefore widespread (Afroptilum sudafricanum) and two stenotopic and thus endemic (Demoreptus natalensis and Demoreptus capensis) species, all of which co-occur in the southern Great Escarpment, South Africa. Mitochondrial DNA was analysed to compare the genetic diversity between the habitat generalist and the two habitat specialists. Afroptilum sudafricanum showed no indication of population genetic structure due to geographic location, while both Demoreptus species revealed clear genetic differentiation between geographic localities and catchments, evident from phylogenetic analyses and high FST values from AMOVA. In addition, the phylogenetic analyses indicate some deeper haplotype divergences within A. sudafricanum and Demoreptus that merit taxonomic attention. These results give important insight into evolutionary processes occurring through habitat specialisation and population isolation. Further research and sampling across a wider geographic setting that includes both major mountain blocks of the Escarpment and lowland non-Escarpment sites will allow for refined understanding of biodiversity and associated habitat preferences, and illuminate comparative inferences into gene flow and cryptic speciation.
Two new species of the genus Formosatettix Tinkham, 1937 (Orthoptera, Tetrigidae) from Guizhou and Chongqing, PR China
Authors: Zha Ling-Sheng , Wu Xiao-Min , Ding Jian-Hua
Published: May 2020

Two new pygmy grasshopper species are described from PR China and are assigned to Formosatettix Tinkham, 1937, a large Asian tetrigin genus composed of species with reduced tegmina and hind wings: F. leigongshanensis Zha & Ding, sp. nov. from Guizhou and F. wulongensis Zha & Ding, sp. nov. from Chongqing. We provide descriptions of morphology and habit, supplemented with photographs. Flying organs of the genus Formosatettix are discussed and the genus is compared with other Asian genera with reduced flying organs, such as Formosatettixoides Zheng, 1994 and Alulatettix Liang, 1993 in Tetriginae, Deltonotus Hancock, 1904, Epitettix Hancock, 1907 and Pseudepitettix Zheng, 1995 in Cladonotinae, and Macromotettixoides Zheng, Wei & Jiang, 2005 and Pseudomacromotettix Zheng, Li & Lin, 2012 in Metrodorinae.
New faunal data on lacewings (Insecta, Neuroptera) collected from Saudi Arabia
Authors: Letardi Agostino , Abdel-Dayem Mahmoud S. , Al Dhafer Hathal M.
Published: May 2020

This study presents new data on the lacewing fauna of Saudi Arabia based on field work performed between 2014 and 2019. Sixty-one lacewing species from 37 genera and seven Neuroptera families were documented. Additionally, two species belonging toDielocroceandPseudomalladawere identified only to genus level. Three of the identified species are new records to Saudi Arabia (Aspoeckiella gallagheriHölzel, 2004,Bankisus maculosusHölzel, 1983, andNemoleon secundusHölzel, 2002). Another three species are new to the fauna of the Arabian Peninsula (Mantispa aphavexelteAspöck & Aspöck, 1994,Omoleon jeanneliNavás, 1936, andStylascalaphus krueperivan der Weele, 1909). The first reports of eight species are provided after their original description from Saudi Arabia; namely,Creoleon ultimusHölzel, 983,Cueta amseliHölzel, 1982,Cu. asiricaHölzel, 1982,Distoleon asiricusHölzel, 1983,Geyria pallidaHölzel, 1983,Neuroleon delicatusHölzel, 1983,N. virgineusHölzel, 1983 andSolter buettikeriHölzel, 1982 Zoogeographically, most lacewing species documented in the Arabian Peninsula are endemic (26.2%), followed by Afro-syroeremic (23.0%), Afrotropical (18.0%), and Afro-syro-iranoeremic (14.8%) species. Palaearctic species (4.9%) had the lowest contribution.
Self-Injury as an Addictive Disorder
Authors: Worley Julie
Published: May 2020

Self-injury is a mental health–related behavior people engage in to feel pain because they feel numb, to experience physical pain to ease their psychological pain, or to experience an emotional release. Self-injury is more common in patients with other co-occurring anxiety or mood disorders. An addictive component to self-injury has been identified related to an increase in dopamine levels from the self-injury, which then disrupts normal dopamine production similar to substance use disorders. Instruments are available to help identify patients who self-injure along with questions that should be asked in the course of a mental health assessment and physical examination. Patients with self-injury should be treated for any underlying mental health disorder as well as for self-injury, which includes therapy strategies and medications. Nurses can play a vital role in identifying and treating this disorder, which carries risk factors including infection, accidental death, and a higher risk of suicide. [
Journal of Psychosocial Nursing and Mental Health Services, 58
(6), 13–16.]
Student Perspective on Technology Enabled/Enhanced Active Learning in Educational: Rasch Measurement Model
Authors: Hassan Nur Farha , Puteh Saifullizam , Sanusi Amanina Muhamad , Zahid Nor Hartini Che Mohamad
Published: May 2020

Nowadays, the industrial revolution 4.0 had given a great impact on education. An active environment which applied technology in education can developed multiple skills in students. Technology Enabled/Enhanced Active Learning (TEAL) is one of the active environments that used technology in education. TEAL is the combination of several active learning domains which enhances students' understanding of learning and built job-related skills. However, students have lack of knowledge in their field which led to increase in unemployment of students. Hence, TEAL can help students in perform their practical works to develop knowledge and skills in students. This pilot study was distributed survey question about create an active and effective environment using TEAL application among the engineering students. The survey is consisted of 141 items and was distributed to 40 respondents. This pilot study used Rasch Measurement Model for measuring the validity and reliability of survey questions. Winsteps software is used to check the functionality of the item in terms of (i) Reliability and separation of respondents - items; (ii) detect the polarity items of PTMEA CORR Value; (iii) the item fit based on MNSQ Value; and (iv) Determine the dependent items based on the standardized residual value measurement correlation. The final result 109 items is suitable to use for measurement of the real study in future work.
Risks and Predictors of Non-Alcoholic Liver Disease Progression Using Association Rules Mining
Authors: A. Gameel Tasneem , Rady Sherine , Kamal Sanaa
Published: May 2020

Non-alcoholic Steatohepatitis Disease (NASH), a progression of Non-alcoholic Fatty Liver Disease (NAFLD), occurs in case of the increase of fat accumulation in the liver. The disease can next progress to fibrosis, cirrhosis or liver cancer. The most accurate way to diagnose NAFLD progression into NASH is through a liver biopsy. This is painful, expensive and difficult to repeat several times to monitor the fibrosis progression. Thus, finding a non-invasive solution through markers can reliably help tracking the disease progression. The objective of this study is to assess the diagnostic and prognostic performance of serum markers to monitor liver disease progression in comparison to findings by liver biopsy. An association rule mining system is proposed using a Frequent Pattern mining algorithm to reach this objective. An Egyptian cohort consisting of 2300 NAFLD and NASH patients is included in an experimental study, where the results showed that the blood tests and serum markers, PIIINP and ELF, can predict the progression of NAFLD into NASH, and can discriminate between the different stages of NASH with confidence value 0.9. The presented results indicate an advantageous promising non-invasive solution in medicine for predicting of the disease and its progression, while avoiding alternative biopsy exposition
Telemedicine: An IoT based Remote Healthcare System
Authors: M. Abdellatif Mohammad , Mohamed Walaa
Published: May 2020

This paper proposes a remote healthcare system which is referred to as Telemedicine. Telemedicine is a platform that estableshes a connection between the patient and the doctor. This platform belongs to the internet of medical things (IoMT) by enabling multiple medical sensors to connect to a server either using multiple communication technologies such as Wi-Fi, Bluetooth or GSM technologies. The system collects data from several sensors and sends them using one of the aforementioned technologies using an Arduino Board, while the interface is made with matlab and C#.  Additionally, a comparative study between the three communications technologies used to connect the medical sensors to the server is investigated. And a recommendation of the best suited technology is provided with regard to the nature of the application itself.
An Energy and Fault Aware Mechanism of Wireless Sensor Networks Using Multiple Mobile Agents
Authors: Dwivedi Rajendra Kumar , Kumar Rakesh
Published: May 2020

Wireless sensor networks find several applications in hard-to-reach areas. As sensors have limited battery power, many energy aware protocols based on negotiation, clustering, and agents have been developed to increase lifetime of the network. This article finds limitation with some multi-agent-based protocols as they place the sink node at the centre of the monitoring region which is quite difficult in hard-to-reach areas. Therefore, a multi-agent-based energy and fault-aware protocol for hard-to-reach territories (MAHT) is proposed which uses technique of impact factor to identify the high power capability of the central node and dynamic itinerary planning to make the protocol fault tolerant. Its agent migration technique results in improvement ofn energy efficiency, task completion time and network lifetime. MAHT is simulated using Castalia simulator and the impact of payload size, network size, node failures, etc., on various performance metrics is analysed. The proposed protocol found outperforming over the existing ones.
Models for Internal Clustering Validation Indexes Based on Hadoop-MapReduce
Authors: Zerabi Soumeya , Meshoul Souham , Boucherkha Samia Chikhi
Published: May 2020

Cluster validation aims to both evaluate the results of clustering algorithms and predict the number of clusters. It is usually achieved using several indexes. Traditional internal clustering validation indexes (CVIs) are mainly based in computing pairwise distances which results in a quadratic complexity of the related algorithms. The existing CVIs cannot handle large data sets properly and need to be revisited to take account of the ever-increasing data set volume. Therefore, design of parallel and distributed solutions to implement these indexes is required. To cope with this issue, the authors propose two parallel and distributed models for internal CVIs namely for Silhouette and Dunn indexes using MapReduce framework under Hadoop. The proposed models termed as MR_Silhouette and MR_Dunn have been tested to solve both the issue of evaluating the clustering results and identifying the optimal number of clusters. The results of experimental study are very promising and show that the proposed parallel and distributed models achieve the expected tasks successfully.
Proposed Approach for Enhancing Adoption of E-Government Services Using AHP and PROMETHEE
Authors: Ghareeb Abeer Mosaad , Darwish Nagy Ramadan , Hefney Hesham Ahmed
Published: May 2020

The growing attention given by governments to invest in e-government projects and the low usage of the available e-government services refers to a gap between provision and usage. This article aims to propose an approach for enhancing adoption of e-government services and maximizing the impact of investment. It is a demand-oriented approach, focuses on eliciting citizens' requirements in e-government projects via analytical analysis of the deployed e-government services, against a predefined set of acceptance and adoption criteria. The proposed approach employs AHP and PROMETHEE methods. AHP is used to create a hierarchical representation of the decision problem and PROMETHEE is used to rank e-government services and highlight their favorable and unfavorable features. The proposed approach has been applied to measure the performance of Egyptian e-government services. The computational results are given and the research outcomes are discussed.
Change Management in the Digital Economy
Authors: Geada Nuno
Published: May 2020

The digital economy shows a great potential of growth, in the scope of the individuals and in transactions between companies. The internet is the great driving force behind this transition. Therefore, the impacts of change have on the economic environment of organizations can only be balanced when implementing good practices and control mechanisms, considering the critical factors for the success of implementation of change using methodologies versus technology versus resources. The control of digital change focuses on the constant need to adapt methodologies in the most varied application scenarios, and in its control in a structured way, namely a simple way to succinct this concept, so it is possible to affirm that the digital economy correlates directly with the constant need for change. Therefore, the objective is through a model proposal to support for the change management that allows managing the processes and associated impacts.
Analysing Millennial Procrastination in Online Assessment Using Analytics
Authors: Jayaswal Pragya , Rawat Dinesh
Published: May 2020

The purpose of the study is to analyse various trends related to procrastinating behaviour of millennials in the context of online exams by using analytics. The study analyses the data collected through an online test given by 302 MBA students. Results of this study indicated that 77.4% students procrastinated until the deadline and 71.5% students procrastinated until last 12 hours of the deadline. Male students were found to procrastinate more than females. The study also uncovered that more the procrastination, lower is the grade of students. It was found that females take more time to complete the task than males. More students gave the online test during PM hours than AM hours but the scores for students giving the test in AM hours was more. The results of this study provide a foundation for more empirical research in this area using data analytics to help in validating these results.
An Economic and Social Assessment of the Syrian Civil War
Authors: Iacovoiu Viorela-Beatrice , Panait Mirela , Enache Alexandru-Cristian
Published: May 2020

Starting from the theories and studies on armed conflicts and in particular civil wars, and based on relevant figures, this paper presents a comprehensive analysis of the Syrian Civil War. The Syrian conflict developed into a civil war with a sectarian dimension and has lasted longer mostly because of major powers, as well as some Middle Eastern countries that were directly and actively involved in the conflict, supporting the government forces or rebel groups. According to the analysed data, the war deeply affected the Syrian economy and its citizens due to the loss of governmental control over oil fields, the destruction of infrastructure and households, and the great number of forcibly displaced people and casualties. At the same time, the Syrian Civil War created great opportunities for arms-producing companies to sell their products without cutting off profits. Thus, the conclusion is that there is no benefit to war except for those who profit of it, namely the countries as well as the arms manufacturers that use conflicts as a proxy to promote their interests.
A Modified Parallel Heapsort Algorithm
Authors: Hirata Hiroaki , Nunome Atsushi
Published: May 2020

Sorting is a fundamental and essential problem required in the wide range of application fields, and so many sorting algorithms have been developed. Among those algorithms, heapsort is one of the most elegant and efficient sorting algorithms. But no parallel heapsort algorithm had been presented until the authors developed a restricted parallel algorithm a few years ago. This parallel algorithm had a restriction which makes it difficult to be used universally for general data sets. So, in this article, the authors present a modified parallel algorithm which is free from such restriction and can be used for any data set. This new algorithm can achieve almost the same performance as the restricted algorithm the authors developed before.
Verifiable Self-Selecting Secret Sharing Based on Elliptic Curves
Authors: Errahmani Hichem Bouchakour , Ikni Hind
Published: May 2020

In distributed systems, as any network architecture, cryptography has a vital role in communication security, and sharing a secret represents a jump in this field where the secret depends on a group instead of a single person. In this article, the authors propose a method to share a multi secrets matrix represented by an image, that could be reconstructed without any loss by an access structure over a distributed system. The presented approach has a verifiable property, where each candidate possesses the advantage to verify the validity of his shadow. The security level of the scheme is based on elliptic curve discrete logarithm problem and the opportunity of allowing each side to generate a private sub-secret key for the sharing. The benefit of this method is justified by the absence of information loss and a lower timing results.
Developing a Blockchain Solution for West Virginia Medicinal Cannabis
Authors: Schaupp Ludwig Christian
Published: May 2020

West Virginia became the 29th state in the country to legalize cannabis for medicinal purposes in 2017. Two years later, the state's medicinal marijuana program is scheduled to start enrolling patients; however, state legislators acknowledge that the program is still years behind actual implementation due to obstacles that have become seemingly insurmountable via existing channels. This paper undertakes a holistic evaluation of the value of blockchain to the nascent medicinal marijuana industry in West Virginia. Three use cases are presented to address the difficulties the state has experienced during the program's first two years of rollout efforts. Specifically, a blockchain use case is developed to address the issue of traceability to prove provenance, managing the vertically integrated supply chain and because of federal tax law the particularly cumbersome issue of collecting and storing payments.
Clustering-Based Approach for Clustering Journals in Computer Science
Authors: Jayaneththi J. K. D. B. G. , Kumara Banage T. G. S.
Published: May 2020

In the present scientific world, most of the authors of scientific literature are seeking effective ways to share their research findings with large peer groups. But finding a high-quality journal to publish paper is a huge challenge. Most of the journals present today are predatory and less-quality. The main aim of this study is to help the researchers in identifying the quality level of computer science journals by introducing a data mining model based on six journal quality metrics (Journal Impact Factor, SCImago Journal Rank, Eigenfactor, H-index, Source Normalized Impact per Paper, and Article Influence). Further, another objective is to identify the best metrics to measure the quality of journals out of the six attributes. A sample dataset of 200 journals was used and journals were clustered into five clusters using K-means clustering algorithm. When finding the best quality metrics, Pearson's and Spearman's correlation coefficients were calculated. A more accurate clustering model with an accuracy of 0.9171 was developed considering only suitable attributes.
Effects of Variable Fluid Properties on Oblique Stagnation Point Flow of a Casson Nanofluid with Convective Boundary Conditions
Authors: Vaidya Hanumesh , Prasad K.V. , Vajravelu K. , Wakif Abderrahim , Basha Neelufer Z. , Manjunatha Gudekote , Vishwanatha U.B.
Published: May 2020

Oblique stagnation point flow of a Casson nanofluid over a heated stretching surface is examined under the influence of variable fluid properties. The impact of variable fluid properties on the flow field is examined by taking a convective boundary condition into account. Momentum, energy and concentration equations are transformed into the non-linear ordinary differential system through suitable similarity transformations and are solved analytically via Optimal Homotopy Analysis Method (OHAM). Effect of pertinent parameters on dimensionless velocity, temperature and concentration are depicted graphically. Numerical values of skin friction, Nusselt number and Sherwood number have been calculated for various parameters. The results indicate that the axial velocity decreases with an increase in variable viscosity whereas the dual impact of variable viscosity is observed on transverse velocity.
A Note on the Similar and Non-Similar Solutions of Powell-Eyring Fluid Flow Model and Heat Transfer over a Horizontal Stretchable Surface
Authors: Khan Razi , Zaydan M. , Wakif Abderrahim , Ahmed B. , Monaledi R.L. , Animasaun Isaac Lare , Ahmad Adeel
Published: May 2020

Deliberation on the dynamics of non-Newtonian fluids, most especially Powell-Eyring fluid flow can be described as an open question. In this investigation, the flow and heat transfer characteristics are examined numerically by means of similarity analysis for a Powell-Eyring fluid moving over an isothermal stretched surface along the horizontal direction, whose velocity varies nonlinearly as a function of and follows a specified power-law degree formula. In order to solve the problem under consideration, the resulting system of coupled nonlinear partial differential equations with their corresponding boundary conditions is transformed into a correct similar form by utilizing appropriate similarity transformations, which are exceptionally acceptable for a particular form of the power-law stretching velocity, whose exponent is equal to . From the mathematical point of view, the similar equations of the studied flow cannot be obtained for any form of the power-law surface stretching velocity. As a result, it was found that the use of a general power-law stretching velocity results in non-similar equations. Also, appropriate numerical methods for similar and non-similar equations are used to discuss the results of engineering significance. Furthermore, correlation expressions for the skin friction and Nusselt number have been derived by applying the linear regression on the data outputted from the used computational methods.On the contrary to the heat transfer rate, it was found that the local skin friction coefficient is a decreasing property of power-law stretching.
Biomechanics of Surface Runoff and Soil Water Percolation
Authors: Deng James Makol Madut , Makinde Oluwole Daniel
Published: May 2020

In this study, the complex interaction of surface runoff with the biomechanics of soil water transport and heat transfer rate is theoretically investigated using a mathematical model that relies on the two phase flows of an incompressible Newtonian fluid (stormwater) within the soil (porous medium) and on the soil surface (runoff). The flow and heat transfer characteristics within the soil are determined numerically based on Darcy-Brinkman-Forchheimer model for porous medium coupled with the appropriate energy equation while analytical approach is employed to tackle the model for interacting surface runoff stormwater. The effects of various embedded biophysical parameters on the temperature distribution and stormwater transport within the soil and across the soil surface together with soil-runoff interface skin friction and Nusselt number are display graphically and discussed quantitatively. It is found that an increase in surface runoff over tightly packed soil lessens stormwater percolation rate but enhances both soil erosion and surface heat transfer rate.
An analytical protocol for determining the elemental chemistry of Quaternary sediments using a portable X-ray fluorescence spectrometer
Authors: Knight R D , Kjarsgaard B A , Stepner D A
J , Russell H A J
Published: May 2020

Advances in portable X-ray fluorescence (pXRF) technology have resulted in the ability to collect high-quality geochemical data for sediments at a fraction of the cost of traditional laboratory methods. The analytical quality of pXRF derived geochemical data is
dependent on numerous factors including sample heterogeneity, grain size, moisture content, sample thickness, and instrument specifications such as power parameters, X-ray tube type, and dwell time. In order to ensure precise and accurate results using a pXRF spectrometer an analytical protocol has
been developed using reference materials and prepared Quaternary sediments. This protocol considers 1) Sample preparation, 2) Analysis, and 3) Data compilation/presentation. Although the pXRF spectrometer provides concentrations for 41 elements it has been determined that only a subset of these
elements meet the criteria for near definitive, quantitative, and qualitative data. Although the analytical protocol is robust, sample collection and preparation is still the key to a successful geochemical study. A significant advantage of pXRF technology is the opportunity to refine sampling
strategies in near real time and the ability to add additional samples to a project with little budget increase.
Effects of hypercarbia on arterial oxygenation during one-lung ventilation: prospective randomized crossover study
Authors: Lee Junho , Kim Yesull , Mun Juhan , Lee Joseph , Ko Seonghoon
Published: May 2020

BackgroundThis study aimed to evaluate the effects of hypercarbia on arterial oxygenation during one-lung ventilation (OLV).MethodsFifty adult patients undergoing elective video-assisted thoracoscopic lobectomy or pneumonectomy were enrolled. Group I patients (n = 25) were first maintained at normocarbia (PaCO2: 38‒42 mmHg) for 30 min and then at hypercarbia (45‒50 mmHg). In Group II patients (n = 25), PaCO2 was maintained in the reverse order. Arterial oxygen partial pressure (PaO2), respiratory variables, hemodynamic variables, and hemoglobin concentration were compared during normocarbia and hypercarbia. Arterial O2 content and O2 delivery were calculated.ResultsPaO2 values during normocarbia and hypercarbia were 66.5 ± 10.6 and 79.7 ± 17.3 mmHg, respectively (mean difference: 13.2 mmHg, 95% CI for difference of means: 17.0 to 9.3, P < 0.001). SaO2 values during normocarbia and hypercarbia were 92.5 ± 4.8% and 94.3 ± 3.1% (P = 0.009), respectively. Static compliance of the lung (33.0 ± 5.4 vs. 30.4 ± 5.3 ml/cmH2O, P < 0.001), arterial O2 content (15.4 ± 1.4 vs. 14.9 ± 1.5 ml/dl, P < 0.001) and O2 delivery (69.9 ± 18.4 vs. 65.1 ± 18.1 ml/min, P < 0.001) were significantly higher during hypercarbia than during normocarbia.ConclusionsHypercarbia increases PaO2 and O2 carrying capacity and improves pulmonary mechanics during OLV, suggesting that it may help manage oxygenation during OLV. Therefore, permissive hypercarbia may be a simple and valuable modality to manage arterial oxygenation during OLV.
STRATEJİK YÖNETİM ANLAYIŞINDA YENİLİK VE YENİLİK YÖNETİMİNİN ÖRGÜTLER İÇİN REKABET ÜSTÜNLÜĞÜ SAĞLAMADAKİ ETKİSİNE YÖNELİK DEĞERLENDİRME
Authors: AYDIN Ahmet Özgür , BEKMEZCİ Mustafa
Published: May 2020

Firmalar için yeni pazarlara girebilmek ve mevcut durumlarını koruyabilmenin yolu yeni ürün hizmet, süreç ve yönetim oluşturmaktan geçtiği çok açık şekilde ortadadır. Bu sebepten dolayı ürün, hizmet, süreç ve yönetim alanlarında sürekli bir yenilik yapmak rekabetin temel noktasını ürünün ticari bedelinden kalite, performans ve kazanımına kaydırmıştır. İşletmelerin rakiplerinden farklı değer yaratması ve bunu strateji ile yenilik arasında bağlantı kurarak rekabet kazanımına dönüştürmesi karlılık ve büyümenin sürdürülebilmesinde en önemli etkenlerden birisidir. Bu durum stratejik yenilik açısından rakipler tarafından henüz keşfedilmemiş ve uygulanmamış bir süreci benimseyen işletmeler için güçlü bir rekabet üstünlüğüne sahip olmak anlamına gelecektir. Bu çalışmanın amacı stratejik yönetim anlayışında yenilik ve yenilik yönetiminin önemini ortaya koymak, yapısını ve unsurlarını incelemek ve stratejik yenilik yönetimi ile rekabet üstünlüğü sağlamanın örgütler için önemini değerlendirmektir.
Ausencia de lesividad y causales de justificación como criterios negativos de imputación objetiva
Authors: Peláez Mejía José María
Published: May 2020

Mediante la presente investigación se pretende demostrar como hipótesis de trabajo que las tradicionales causales de justificación (cumplimiento de un deber legal, obediencia debida, estado de necesidad justificante, legítima defensa, ejercicio de un derecho, cargo público o actividad lícita, etc.) son en realidad modalidades de “riesgo permitido”, razón por la cual el examen de todas ellas debe darse en el terreno de la imputación objetiva como verdaderas causales de atipicidad y no como conductas típicas carentes de antijuridicidad (entendida como una categoría dogmática independiente). Así las cosas, y dado que también la lesividad hace tiempo es un criterio de tipicidad objetiva, estaríamos presenciando el abandono definitivo de un esquema tripartito del delito, cuya larga agonía no fue más que la crónica de una muerte anunciada; siendo ello así, porque la función, antiguamente cumplida por la antijuridicidad en el sistema jurídico-penal, ha quedado hoy satisfecha en mejor forma a partir de los criterios analíticos que estructuran la imputación objetiva.