bluuebunny/crossref_metadata_2025 huggingface dataset:
Attenuation of microbial-induced deterioration of cellu-lose fibers by hornwort (Ceratophyllum demersum L.) methanolic extract
Authors: Mohamedomar Ali , Salah Ayman Taha , Mohamed Amal A. A. , Sheded Mohamed G.
Published: February 2021

Plants are endowed by a variety of secondary metabolites, which have potent antimicrobial activity to treat vulnerable subjects against microbial-induced damage. In this study, bacteria and fungi were isolated from the infected manuscript dated back to 8th century AHkeptatAl-Azhar library in Cairo, Egypt. The material of that manuscript was made from cellulose fibers.Three bacterial species, Bacillus subtilis, Bacillusmegatrium and Streptomyces spanned five fungal species, Aspergillusnispecies. Aspergillusniger, The antibacterial and antifungal activities of methanolic extracts of stems and leaves of Ceratophyllumdemersum were evaluated using agar well diffusion technique. The results showed remarkable inhibition ingrowth of isolatedbacteria and fungitreated with the plant extracts.In addition, treating of the modern Ractapapers with Ceratophy llumdemersum extracts resulted in ameliorating physical and mechanica lproperties of the papers. Moreover, against microbial attack of Racta papers was increased after treating with Ceratophy llumdemersum extract.
Hematological status of rats (Rattus norvegicus L.) in the lactation period after giving supplements organic quail eggs
Authors: Basri Hasan , Rini Saraswati Tyas , Isdadiyanto Sri
Published: February 2021

Organic quail eggs contain high nutrients and low cholesterol, so it is needed in the process of hematopoiesis that occurs in the bone marrow. The purpose of this study was to determine hematological status of rat (Rattus norvegicus L.) in the period of lactation after supplementation of organic quail eggs. This study is an experimental study using a completely randomized design with 4 treatments and 5 replications. Some treatments applied are: T0: Control; T1: The lactation period of (Rattus norvegicus L.) with giving quail eggs supplement of commercial feed; T2: The lactation period of (Rattus norvegicus L.) with giving quail eggs supplement of standard organic feed; T3: The lactation period of (Rattus norvegicus L.) with giving quail eggs supplement of given organic feed. The results showed that feed intake, weight femur, long bone of the femur, erythrocytes, and hemoglobin levels were not significantly different (p > 0.05), blood pH significantly different (p < 0.05). Supplementation of organic quail eggs could be maintain the condition hematological status of erythrocytes, hemoglobin and blood pH in the lactation period of (Rattus norvegicus L.).
The Effects of MYO-inositol and Indole Butyric Acid (IBA) on the Formation of Pineapples Root (Ananas comosus L.) from Sipahutar North Sumatera In Vitro
Authors: Hasanah Arisah , Harahap Fauziyah , Silaban Ramlan
Published: February 2021

Background: Rooting of pineapple from Sipahutar in vitro is an alternative to obtain superior seeds in large quantities to meet the needs of farmers and consumers.Objective: The purpose of this study was to investigate the effect of Myo-inositol and IBA on pineapple rooting (Ananas comosus L.) from Sipahutar in vitro.Methods: The research method used a completely randomized factorial design with two factors: Factor I: Myo-inositol consisted of [4] treatment concentrations: M0 = 0 g/l, M0.02 = 0.02 g/l, M0.04 = 0.04 gr/l, M0.06 = 0.06 gr/l. Factor II: IBA growth regulators consisted of [3] treatment concentrations: IB0 = 0 ppm, IB1.5 = 1.5 ppm, IB3 = 3 ppm. The parameters observed were time of root emergence, number of roots, number of leaves, time of leaf emergence, number of tillers, and time of its emergence observed each week, while the height of tillers, shoots, and whole shoots, root length, leaf width and leaf length were observed 12 weeks after planting (WAP).Results: The result of the research showed that root time appeared on [3] WAP. The increasing number of leaves and timing of the puppiesin 1 WAP. Myo-inositol had significant effects on root counts in the 0.06 gr/l and root length on Myo-inositol treatment in the 0.04 g/l. IBA did not have a real effect on the entire observation parameters. The interactions of Myo-inositol and IBA had significant effects on root number, number of leaves, leaf length and tiller height.Conclusions: Myo-inositol and IBA had significant effects on root number, leaf number, leaf length and shoot height of pineappleâ€™s explant from Sipahutar.Â
Comparative study of efficacy of commercial anthelmintic response against gastrointestinal nematodes in goats of Jhenidah district, Bangladesh
Authors: Kumar Halder Prodip , Kumar Sarker Biplob , Shah Alam Md. , Nime Jannatun , Tareq Mussa Md. , Mostafijur Rahman Md. , Kumer Chakraborty Bipul , Harun-ur-Rashid SM.
Published: February 2021

Background: Parasitic disease constitutes 60-70% diseases affecting the animals and has serious economic implication in livestock entrepreneurship by direct and indirect production loss. Indiscriminate use of anthelmintic drugs has made the situation even more precarious. A similar problem was encountered in goat from Holidhani, Jhenidah, where goats with complain of intermittent diarrhea and loss of body condition was reported despite of routine deworming.Objective:Â  Determining the efficacy of conventional anthelmintics used and its comparison with some unexploited antiparasitic drugs for the same reason.Methods: Sixty-five goats were divided into five groups. Group A goats were kept as the control, Group B (I, II, III), group C (IV, V, VI), group D (VII, VIII, IX) and group E (X, XI, XII) goats were treated with levamisole, albendazole, fenbendazole and ivermectin respectively. All the treated and control goats were kept, housed for 21 days after the first treatment. Fecal samples were collected and counted on 1st, 7th, 14th and 21st day by using McMaster counting method.Results: Among the three doses of levamisole, albendazole, fenbendazole and ivermectin, the doses of 7.5, 7.5, 5.0 and 0.2 mg/kg body weight, body weight were found to be most effective against gastrointestinal nematodes in goats with a maximum reduction of fecal egg count to the extent of 95.38, 97.13, 98.08 & 99.16 percent respectively.Conclusion: The study revealed low efficacy of levamisole and hence ivermectin is a better drug than albendazole and fenbendazole to control gastrointestinal nematodes in goats.Â
Taurine represses oxidative stress in the liver and kidney following exposure to atrazine in Wistar rats
Authors: Kayode Afolabi Olusegun , Teslim Folarin Dasola , Olusola Aderibigbe Felix , Arinola Abimbola
Published: February 2021

Background: Taurine is a conditional essential nutrient in man, with proven antioxidant property. This study was designed to evaluate the protective effects of taurine against atrazine (ATZ)-induced hepatic and renal oxidative toxicity in rats.Methods: Wistar rats were orally exposed to ATZ (1/10 LD50) alone or in combination with taurine at 1.5% w/v and 3% w/v in their drinking water for 30 days. After treatment, the liver and kidney were excised for biochemical assays by spectrophotometric methods.Results: Exposure to ATZ significantly elevated hepatic and renal malondialdehyde (MDA) levels when compared to control (p < 0.05). Advanced oxidized protein products (AOPP) were equally increased in these tissues on exposure to ATZ. In addition, reduced glutathione (GSH) and total antioxidant capacity (TAC) were markedly depleted in both organs on exposure to ATZ. Furthermore, activities of the antioxidant enzymes, superoxide dismutase (SOD) and catalase (CAT) were inhibited by ATZ compared to the control. However, co-treatment with taurine attenuated the oxidative responses generated by ATZ exposure in the rats, with the high dose of the amino acid normalizing most of the toxic effects.Conclusion: The study suggested that taurine can protect against ATZ-induced oxidative stress.Â Â Â
Conservation status of amniotes found in and around Balapur Pond of District Prayagraj (Uttar Pradesh), India
Authors: Kumar Verma Ashok
Published: February 2021

Perennial Balapur Pond was surveyed and studied to assess the conservation status of reptiles, birds and mammals naturally occurring in and around it. The survey was conducted from January 2018 to June 2019. During entire survey, a total of 7 species of reptiles, 11 species of birds and 8 species of mammals were identified. Among reptilian species reported, 1 species comes under NT (near threatened), 1 species LC (least concern) while 5 species have no special status (NSS). One avian species was CR (critically endangered), one NT (near threatened) and 9 bird species were LC (least concern). Out of 8 mammalian species recorded, one was EN (endangered), one VU (vulnerable) and remaining 6 LC (least concern).Most of the avian and mammalian species are lacking conducive ambience and hunted for food.Â Â Â
The impact of information culture on the adoption of mobile cloud learning in higher education environments
Authors: A.Y Alqaralleh Bassam , Zakarya Alksasbeh Malek , AbuKahlil Tamer , Almahafzah Harbi
Published: February 2021

Adoption of new innovated technologies has become an important requirement for a successful development and implementation of computer systems. Mobile cloud learning is a relatively recent paradigm shift that provides significant promise for meeting future education development and delivery requirements based on mobile cloud computing. The focal point of this study is to develop a conceptual model which highlights the effects of information cultural factors on the adoption of mobile cloud learning in higher education environments. The proposed model is developed based on four identified information cultural variables, namely information integrity, formality, control and pro-activeness. A pilot survey is conducted to test the questionnaire using a small sample of information systems experts and university lecturers. The results show acceptable reliability and validity of the instrument. Finally, conclusions, possible practical contributions of this study and some of the directions for upcoming research are discussed.
Generating realistic Arabic handwriting dataset
Authors: I. Abdalla Mahmoud , A. Rashwan Mohsen , A. Elserafy Mohamed
Published: February 2021

During the previous year's holistic approach showing satisfactory results to solve ‎the ‎problem of Arabic handwriting word  recognition instead of word letters ‎‎segmentation.‎ ‎In this paper, we present an efficient system for ‎ generation realistic Arabic handwriting dataset from ASCII input ‎text. We carefully selected simple word list that contains most Arabic ‎letters normal and ligature connection cases. To improve the ‎performance of new letters reproduction we developed our ‎normalization method that adapt its clustering action according to ‎created Arabic letters families. We enhanced  Gaussian Mixture ‎Model process to learn letters template by detecting the ‎number and position of Gaussian component by implementing ‎Ramer-Douglas-Peucker‎ algorithm which improve the new letters ‎shapes reproduced by using and Gaussian Mixture Regression. ‎‎We learn the translation distance between word-part to achieve ‎real handwriting word generation shape.‎ Using combination of LSTM and CTC layer as a recognizer to validate the ‎efficiency of our approach in generating new realistic Arabic handwriting words inherit user handwriting style as shown by the experimental results.‎
k-NN improvement to data analysis
Authors: P. Mateva Tonya , G. Ivanov Ivan
Published: February 2021

The problem to classify big data is an actual one the subject. There are multiple ways to classify data but the k Nearest Neighbors (k-NN) has become a popular tool for the data scientist. In this paper we examine several modifications of the k Nearest Neighbors algorithm that achieve better efficiency in terms of accuracy and CPU time when classifying test observations in comparison to the standard k Nearest Neighbors algorithm. To make the modifications faster than standard k-NN we use a special methodology which splits the input dataset into n folds and combine it with input data transformations. Each time we execute the process, one of the folds is saved as a test subset and the rest of the folds are applied for training. The process is executed n times. In the proposed methodology we are looking for the pair of subsets which produces the highest accuracy result.
Augmented reality using artificial neural networks –a review
Authors: Narayanan Sreekumar , Doss Srinath
Published: February 2021

The present paper reviews the areas where Augmented Reality (AR) has been used in Artificial Neural Networks (ANN) (Artificial Neural Networks). The focus on systems based on AR is largely on enhancing technologies in diverse application areas such as; defense, robotics, medical, manufacturing, education, entertainment, assisted driving, maintenance and mobile assistance. However, AR is now finding much usage in ANN. The research considered a review based methodology wherein most studies conducted in the past on AR and ANN were reviewed. AR with ANN has profound applications in various sectors and has been developed in an extended way but still has some distance to go afore industries, the military and the common public will receive it as a accustomed user interface. AR would modernize the way people animate and the way industries endeavor by effective utilization. There is an incredible potential in fields such as construction, art, architecture, repair and manufacturing with mediated reality and well-organized visualization through AR.
Implementation of innovative aeronautical communication, navigation and surveillance (CNS) systems
Authors: Stojce Ilcev Dimov
Published: February 2021

This paper introduces implementation of innovative Satellite Communication, Navigation and Surveillance (CNS) systems in function of Global Satellite Augmentation System (GSAS) integrated by the current and new projected Regional Satellite Augmentation System (RSAS) worldwide. The satellite communication and navigation systems are presently in use, however the main aspect of any hypothetical RSAS network is implementation of satellite surveillance system employing previous and new CNS solutions for improved Air Traffic Control (ATC) and Air Traffic Management (ATM) in all phases of flight, approaching to airports and during landing. The CNS network also enhances safety and emergency systems, transport security and control of transportation freight, logistics and the security of the crew and passengers onboard aircraft. The proposals for modern multifunctional space segment, DVB-RCS network, RSAS infrastructure, Satellite Automatic Dependent Surveillance-Broadcast SADS-B system for surveillance and movement guidance and control are also discussed as special solutions in airports environments.Â Â Â
Evaluation of the superplasticizer effect on the workability and strength of concrete
Authors: Alsadey Salahaldein , Mohamed Saieed
Published: February 2021

The adverse effects of temperature on the properties of fresh concrete include increased water demand, shorter setting time and increased slump loss. Superplasticizer (SP) is important for enhancing the workability and setting time of concrete in hot weather. Hence, an experi-mental investigation was conducted to determine the optimum dosage of an admixture and to study the effect of over dosing this admixture. Concrete mixes with SP dosages of 0.8%, 1% and 1.2% by weight of cement were prepared along with a control mix (water/cement ratio of 0.55). After casting, the concrete samples underwent normal curing. Among the properties of fresh concrete determined were compressive strength as well as workability. The over dosage of SP appeared to degrade the properties of concrete with an indication of lower compres-sive strength. However, if the dosage levels are lower than the optimum dosage, raising the admixture dosage might help enhance the con-crete characteristics.Â
Simulation of a stochastic multi-echelon distribution supply chain under a continuous inventory control policy
Authors: Ech-cheikh Hamid , Douraid Abdessamad , El Had Khalid
Published: February 2021

Multi Echelon Distribution System (MEDS) is a multifaceted system focusing on integration of all factors involved in the entire distribution process of finished goods to customers. This paper proposes a simulation framework at the operational level of MEDS. The proposed model includes three echelons, based on discrete-event simulation approach, where the performed operations within our system are depending on several key variables that often seem to have strong interrelationships. It is necessary to simulate such complicated system, in order to understand the whole mechanism, to analyze the interactions between various components and eventually to provide information without decomposing the system. The simulation framework is used to evaluate the performance of the considered system at initial conditions and to compare it with different scenarios generated by simulation running. The study concludes with an analysis of system performance and the finding results according to each scenario.Â Â Â
Design and Implementation of Access Door Control with Mo-bile Alert
Authors: Nwogu Chijioke , Eze Monday , Okunbor Charles
Published: February 2021

The necessity for adequate security of lives and properties cannot be overemphasized. Tackling insecurity in an effective manner calls for active computer-based researches and solutions. Essentially a security system is designed to help detect intrusion and prevent unauthorized access. These security threats are tracked by installing various security access doors and alarm systems. Findings have shown that many access doors use either password or biometric form of authentication separately which are easily compromised. This paper presents a two level automated access control for door security with mobile alert system, powered by a 5V, 6000mAH battery. In addition a multi factor authentication using biometrics (fingerprint) and password was also used to enhance access control for this system. A mobile phone call alert and alarm system was uniquely included to this design to notify owners of the presence of an intruder when multiple attempts of incorrect login credentials are presented to the system over a short period of time. The program for the microcontroller was written in C language. This paper concluded that the use of multi factor authentication with mobile phone call alert will help improve the security for access doors used in banks, residential buildings, hospitals, military properties and other institutions and where confidentiality and restrictions are needed.
Designing of advanced solar absorption chilling unit
Authors: Ullah Ahmed , Mushtaq Asim , Ahmed Qamar Rizwan , Ali Uddin
Published: February 2021

In emerging nations, access to electricity is inconsistent is a widespread issue. This research aimed to design an absorption chiller based on utilising heat from a solar tracker system to power a chiller. For this purpose, a solar-driven ammonia absorption chilling system is designed. The solar-powered absorption chiller is a chilling system designed to offer refrigeration to developing areas. It is an intermittent system in which ammonia and water are used as absorbent and refrigerant respectively. A small-capacity vapor ab-sorption system was first simulated and its parameters were compared with the calculated ones. The main constituents like condenser, evaporator and generator are designed based on capacity. The basic heat and mass transfer equations relating the working properties are specified. The coefficient of performance (COP) obtained from experiments is in the range of 0.3-0.4.Â
The characteristics of current patterns in the waters of port of Tanjung Emas Semarang
Authors: . Hartanto , Tjahjono Agust , Sugiharto Rudy
Published: February 2021

The Port of Tanjung Emas Semarang is located in the northern of Java which is regarded as a strategic position to support sea transportation connectivity to Kalimantan. Conducted at the Port of Tanjung Emas Semarang, this research applied exploratory descriptive as the research methodology. Measurements of this research were made by using ADCP (Acoustic Doppler Current meter Profiler) type of Multi Cell Argounaut-XR. The research was carried out in 3 days (January 16th, 2016 â€“ January 19th, 2016). Current velocity data were taken at Â± 7 meters depth in five depth strata. The research was aimed to measure the current pattern and distribution of ballast water discharges from commercial vessels at the port. Based on the research, it was found that the current velocity of all water columns in the port varied ranging from 0.042-0.124 m/s with minimum current velocity of 0.0â€“0.003 m/s and maximum current velocity of 0.139-0.452 m/s. It was also found that the dominant current direction was north and south. It was predicted that the distribution of the ballast water discharges during falling tide (the tide went from high to low) moved from south to north, heading the port exit. In contrast, during rising tide (the tide went from low to high), the distribution of the ballast water discharges moved from north to south, heading the estuary of Baru river.Â Â
Design and fabrication of high productive barbecue machine
Authors: Ghani Usman , Hayat Mubashir , Habib Tufail , Zeb Alam , Azam Khizar
Published: February 2021

Conventional methods to use a metal cavity having charcoal assisted with skewers in getting the final barbecue encounter a lot of limitations such as time, lower productivity, single temperature heating, worker fatigue, controlling of heat and time, energy consumption, importability, unhygienic food preparation (road-side open barbecuing) and cost-effectiveness etc. The proposed research considers the design and fabrication of barbecue machine fueled with gas and actuated by electrical cum mechanical systems. This electromechanical semi-automatic barbecue machine overcomes the stated limitations. It will be an important tool used for household as well as commercial use. This machine capacity is to barbecue an average of 4.5 kg of meat at a time. The machine is divided into three chambers. In first chamber barbecue is kept on lower temperature for high time. Once it completes its first stage motor attached with chain drive mechanism is activated and it brings the food to second chamber. In the second chamber, it takes lower time on high temperature and when it finishes it is conveyed to first chamber for un-feeding. The aim of this research is also to commercialize the product in the market targeting small scale industries and people involved in road side barbecue production, restaurants and other organizations.Â Â
Improvement of cost performance accompanied by quality control using value engineering and six sigma methods in high-rise building project
Authors: Rochman Khairul , Susetyo Budi
Published: February 2021

Construction projects are unique, complex, and have high risks, thereby increasing priorities. The application of the concept of mega con-struction with the risk of increasing costs needs to be eliminated by the value engineering and quality control methods. Re-analyzing a de-velopment plan is an option to save costs, but still in accordance with applicable specifications and conditions. Quality control with the six sigma method can be defined as relating to systemic and systematic to identify and eliminate waste or activities that are not added activities that do not add value, radical continuous improvement to achieve six sigma performance levels, by flowing products (material, work-in-process, output) and information using a Pull system from internal and external users to achieve goals and perfection with only produce a small amount for every one million opportunity or operation. The results of the case study conducted on the upper structure work (column and beam) based on the design value of the multi-storey building obtained a cost efficiency of 9.27% and 3.19% of the initial cost design. Whereas the implementation of six sigma is used to reduce work defects from excessive targets and low worker skills. NCR from this high-rise building project, obtained a value of 39 defects, with a Disability Per Million Opportunity value of 3.125 DPMO, which after being converted to a sigma table, is included in the 4.23 sigma category and a DMAIC (Define-Measure-Analyze-Improve-Control) in order to maintain quality and reduce defects resulting from upper structure work.Â Â
Cybersecurity capability maturity models review and application domain
Authors: Abdullahi Garba Adamu , Musa Bade Aliyu , Yahuza Muktar , Nuhu Yaâ€™u
Published: February 2021

Cybersecurity is a way of protecting organization critical assets, through the identification of cyber threats that can compromise the information stored, it involves the protection, identification, and responding to threats. The main aim of this article is to conduct an ample review of the published cybersecurity capability maturity models using a systematic review of published articles from 2014 to 2019. Features of Hal- vorsen and Conradiâ€™s taxonomy were adopted to explain the models identified. The results indicated adopting a model to a certain organization is not feasible. However, modification is required before implementation, as the cost of implementation is not available when conducting this research.Â Â
Polynomial Exact-3-SAT-Solving Algorithm
Authors: Mueller Matthias
Published: February 2021

This article describes an algorithm which is supposed by the author to be capable of solving any instance of a 3-SAT CNF in maximal O(n^15), whereby n is the variable index range within the 3-SAT CNF to solve. The presented algorithm imitates the proceeding of an exponential, fail-safe solver. This exponential solver stores internal data in m-SAT clauses, with 3 <= m <= n. The polynomial solver works similarly, but uses 3-SAT clauses only to save the same data. The paper explains how, and proves why this can be achieved. On the supposition the algorithm is correct, the P-NP-Problem would be solved with the result that the complexity classes NP and P are equal.
Key factors of success in the application of last planner system in construction work
Authors: Mandala Andrean , Widyaningsih Nunung , Purwoko Kusumo Bintoro Bambang
Published: February 2021

This study aims to identify what factors are the key to the successful implementation of the Last Planner System in construction work based on existing journals to be applied in the construction environment and determine the priority weight / key factors of success from the questionnaire results from experts with the Analytic method Hierarchy Process. The method used in this study uses the Analytic Hierarchy Process to find priority weights and software uses Expert Choice. From the results of the analysis obtained Key Success Factors in construction work, namely as many as 10 criteria where stakeholder criteria with the highest priority weight with a global weight of 0.2279 which have a value of consistency ratio below 0.1 or 10%, ie 0.08 or 8%, then an evaluation of the comparison pairing between criteria is consistent and as many as 24 sub-criteria where the sub-criteria of stakeholder support for the implementation of LPS with the highest priority weighting with a global weight of 0.1812 which has a consistency ratio below 0.1 or 10% ie 0.07 or 7%, then an assessment of pairwise comparisons between sub criteria are consistent.Â Â
Case study of liquid suction heat exchanger in a mechanical refrigeration system using alternative refrigerants
Authors: Ahmed Mahmood Raid
Published: February 2021

This paper investigates the effect of adding a liquid-suction heat exchanger on the performance of a mechanical refrigeration system using alternative refrigerants. Engineering Equation Solver (EES) was used to simulate a mechanical refrigeration system in two configurations: modified system with liquid-suction heat exchanger and system without liquid-suction heat exchanger. The results revealed that the liquid-suction heat exchanger has a significant effect on the system performance as it influences the subcooling and superheating temperatures. The results also showed that the highest value of the coefficient of performance (COP) was achieved by the modified system with refrigerant type R134a, COP was about 7% and 12% higher than that of refrigerants R600a and R22 respectively. It also presented that R600a has high response to increase the refrigerant effect when the liquid-suction heat exchanger is used. R600a is good alternative refrigerant and it can be used in the mechanical refrigeration system, but its COP is lower than that of R134a.Â Â
FPGA Realization of Deep Neural Network for Hardware Trojan Detection
Authors: Reddy Varun , M Nirmala Devi
Published: February 2021

With the increase in outsourcing design and fabrication, malicious third-party vendors often insert hardware Trojan (HT) in the integrated Circuits(IC). It is difficult to identify these Trojans since the nature and characteristics of each Trojan differ significantly. Any method developed for HT detection is limited by its capacity on dealing with varied types of Trojans. The main purpose of this study is to show using deep learning (DL), this problem can be dealt with some extent and the effect of deep neural network (DNN) when it is realized on field programmable gate array (FPGA). In this paper, we propose a comparison of accuracy in finding faults on ISCASâ€™85 benchmark circuits between random forest classifier and DNN. Further for the faster processing time and less power consumption, the network is implemented on FPGA. The results show the performance of deep neural network gets better when a large number of nets are used and faster in the execution of the algorithm. Also, the speedup of the neuron is 100x times better when implemented on FPGA with 15.32% of resource utilization and provides less power consumption than GPU.
Osteopoikilosis: Rare case with incidental radiographic findings
Authors: Azarfar Azin , Taj Hiffsa , Seifert Michael
Published: February 2021

We report a case of benign, autosomal dominant, sclerosing dysplasia of bone in a 41-year-old man. This is a very rare disorder character-ized by numerous, symmetric, homogenous bone islands. The disease is mainly asymptomatic and requires no treatment.Â Â
Atherosclerotic disease and diabetes mellitus
Authors: Martha Lilac Ketisha Antoine Malyn , Xu Yancheng , Kossi Djakpo Dodji
Published: February 2021

The macro-vascular complications (cardiovascular, neurovascular and peripheral vascular diseases) observed in diabetic patients usually develop secondary to the presence of atherosclerotic diseases. In diabetic patients chronically elevated blood glucose levels play a major role in contributing to the development of the disease; however, in addition to hyperglycaemia, other factors such as hypertension, dyslipidaemia and obesity also contribute to the development of this condition. Despite the fact that further research is required to fully establish the relationship between hyperglycaemia and the development of atherosclerotic plaques in diabetic patients, three major pathways have already been identified for the role they play in the pathogenesis of atherosclerosis. These pathways are identified as follows: 1. non-enzymatic glycosylation of lipids and proteins 2. oxidative stress 3.Protein kinase C. This review discusses how hyperglycaemia influences the development of atherosclerosis which further leads to the development of major vascular complications in diabetic patients.Â
Theoretical investigation of acoustic wave velocity of aluminum phosphide under pressure
Authors: Daoud Salah , Latreche Abdelhakim , Kumar Saini Pawan
Published: February 2021

The bulk and surface acoustic wave velocities of Aluminum phosphide (AlP) semiconducting material under pressure up to 9.5 GPa were studied. The structural parameters and the elastic constants used in this work are taken from our previous paper published in J. Optoelec-tron. Adv. M. 16, 207 (2014). The results obtained at zero-pressure are analyzed and compared with other data of the literature. In addition, the acoustic GrÃ¼neisen parameter and the Vickers and Knoop microhardness are predicted and analyzed in detail. Our calculated results are in good agreement with the experimental and other theoretical data of literature.Â Â Â
Structural and microstructural study of SnS thin film semiconductor of 0.2<tâ‰¤ 0.4 Î¼m thickness for application in a field effect transistor
Authors: Ojonugwa Daniel Thomas , Essang Uno Uno , Uthman Isah Kasim , Ahmadu Umaru
Published: February 2021

SnS semiconductor thin film of 0.20, 0.25, 0.30, 0.35, 0.40 Î¼m were deposited using aerosol assisted chemical vapour deposition (AACV) on glass substrates and were investigated for use in a field effect transistor. Profilometry, X-ray diffraction, Scanning electron microscope and Energy dispersive X-ray spectroscopy were used to characterise the structural and microstructural properties of the SnS semiconductor. The SnS thin film was found to initially consist of a single crystal at thickness of 0.20 to 0.25Î¼m after which it becomes polycrystalline with an orthorhombic crystal structure consisting of Sn and S elements whose composition varied with increase in thickness. The SnS film of 0.4 Î¼m thickness shows a more uniform grain distribution and growth with a crystal size of 60.57 nm and grain size of 130.31 nm signifying an optimum for the as deposited SnS films as the larger grains reduces the number of grain boundaries and charge trap density hence allowing charge carriers to move freely in the lattice thereby causing a reduction in resistivity, increase in conductivity of the films and enhanced energy band gap which are essentially parameters for a semiconductor material for application in a field effect transistor.Â Â
Empirical models for predicting global solar radiation using meteorological parameters for Sokoto, Nigeria
Authors: O. Akpootu Davidson , I. Tijjani Bello , M. Gana Usman
Published: February 2021

The performances of sunshine, temperature and multivariate models for the estimation of global solar radiation for Sokoto (Latitude 13.020N, Longitude 05.250E and 350.8 m asl) located in the Sahelian region in Nigeria were evaluated using measured monthly average daily global solar radiation, maximum and minimum temperatures, sunshine hours, rainfall, wind speed, cloud cover and relative humidity meteorological data during the period of thirty one years (1980-2010). The comparison assessment of the models was carried out using statistical indices of coefficient of determination (R2), Mean Bias Error (MBE), Root Mean Square Error (RMSE), Mean Percentage Error (MPE), t â€“ test, Nash â€“ Sutcliffe Equation (NSE) and Index of Agreement (IA). For the sunshine based models, a total of ten (10) models were developed, nine (9) existing and one authorâ€™s sunshine based model. For the temperature based models, a total of four (4) models were developed, three (3) existing and one authorâ€™s temperature based model. The results of the existing and newly developed authorâ€™s sunshine and temperature based models were compared and the best empirical model was identified and recommended. The results indicated that the authorâ€™s quadratic sunshine based model involving the latitude and the exponent temperature based models are found more suitable for global solar radiation estimation in Sokoto. The evaluated existing â„«ngstrÃ¶m type sunshine based model for the location was compared with those available in literature from other studies and was found more suitable for estimating global solar radiation. Comparing the most suitable sunshine and temperature based models revealed that the temperature based models is more appropriate in the location. The developed multivariate regression models are found suitable as evaluation depends on the available combination of the meteorological parameters based on two to six variable correlations. The recommended models are found suitable for estimating global solar radiation in Sokoto and regions with similar climatic information with higher accuracy and climatic variability.Â Â Â
An approximate solution of the Yang - Mills equation on a spatially flat FRW cosmological background
Authors: Shchigolev Victor
Published: February 2021

In this paper, an approximate solution for the Yang - Mills equation in a spatially flat Friedmann-Robertson-Walker universe is obtained. For this purpose, the well known method of solution of non-linear differential equations is used, viz. the homotopy perturbations method. This method has been developed as effective technique for solving different non-linear problems. Here, this method allowed us to obtain approximate solution for the essentially non-linear equation for the SO3 Yang-Mills fields on the curved space-time background of the spatially flat Friedmann-Robertson-Walker universe.
Gamma activity in Tigris river water and Rustumai wastewater treatment plant
Authors: R. Al-Ani Rana , A. Amin Sahar
Published: February 2021

The activity level of 226Ra, 232Th and 40K radionuclides at selected locations of Tigris River and Rustumai water treatment plant (before and after treatment) has been determined by using NaI(Tl) gamma spectrometry. The results show that the total average activity values were 44.3Bq kgâˆ’1 and 789.6Bq kgâˆ’1 for 226Raand 40K, respectively. These values are higher than the world recommended values given by UNSCEAR, while the total activity concentration of 232Th was within the world recommended value of 30 Bq.kg-1. Radiological hazard indices such as: radium equivalent activity in Bq.kgâˆ’1, annual equivalent dose in Sv.yâˆ’1, external and internal hazard indexes, representative gamma index, dose rate in nGy.hâˆ’1 and annual effective dose equivalent (outdoor and indoor) in mSv.yâˆ’1 were calculated. The calculated indices were below the world recommended values, hence they have no serious effects on people health and environmental species and the Tigris River water can be considered un-harmful for the environment and humans as they are within the world median limits. In the case of Rustumai wastewater treatment plant samples for untreated and treated samples, the average activity concentrations of the three radionuclides were higher than the world recommended values.Â Â
Dark soliton solutions to (2 + 1)-dimensional Kundu-Mukherjee-Naskar equation via the first integral method
Authors: Subhaschandra Singh Salam
Published: February 2021

Â In the present work, the First Integral Method is being applied in finding a non-soliton as well as a soliton solution of the ( 2 + 1 ) dimensional Kundu-Mukherjee-Naskar (KMN) equation which is a variant of the well-known Nonlinear Schrodinger ( NLS ) equation. Using the method, a dark optical soliton solution and a periodic trigonometric solution to the KMN equation have been suggested and the relevant conditions which guarantee the existence of such solutions are also indicated therein.Â Â
Quantum non-demolition measurement in the interferometer
Authors: Khokhlov Dmitri
Published: February 2021

The schemes of the arrangements based on the Mach-Zehnder interferometer and the interferometer with two polarizing beam splitters are considered. The interferometers in both the schemes are equipped with some devices, creating a Kerr medium, to perform the quantum non-demolition measurement of a single photon. Such a device gives which way information of the photon while preserving the work of the interferometer.
The thermodynamic principles as the theoretical basis of fair remuneration
Authors: Dobija MieczysÅ‚aw , Renkas Jurij
Published: February 2021

Thermodynamics is the key to solving many economic problems. Since the human body is driven by heat engines, there is a loss of energy source. Measuring this loss means it is possible to indicate the size of a fair wage. Another version of the second principle justifies the amount of depreciation of real assets, such as machinery and equipment. A significant purpose of the article is to indicate that the category of capital cannot be understood without knowing the first and second principle of thermodynamics. The main aim is to present the theory of equitable remuneration developed using the second principle of thermodynamics and the discovered economic constant. Theoretical research leads to the creation of a model of capital and a model of fair pay with the understanding of the existence of an economic constant quantifying the action of natural forces on capital growth. Empirical research estimates the size of the constant and verifies the fairness of remuneration. The research reveals the existence of an economic constant necessary in capital theory, especially in the field of remuneration for work. Models for measuring human capital of employees and formulas enabling calculation of fair remuneration and its updating are presented. Additionally, using the entropic version of the second principle, the depreciation amounts of fixed assets are determined. The main conclusion of the presented research and the formulated theory is that thermodynamics is essential for the correct understanding of the category of capital defining as the abstract ability to perform work.Â Â
New closed-form soliton solutions for the tzitzeica dodd bullough equation arising nonlinear optics via three distinct re-liable approaches
Authors: Hawlader Faisal , Akter Nahida
Published: February 2021

Tzitzeica Dodd Bullough (TDB) equation appears in the field of quantum field theory and nonlinear optics. In this article, we extracted abundant new soliton solutions with free choice of arbitrary parameters to the Tzitzeica-Dodd-Bullough (TDB) equation through the three separate methods such as the enhanced -expansion method, the improved -expansion method and the -expansion method by means of the wave transformation and the Painleve property. In these schemes, we formally derived some new closed form soliton solutions of the TDB equation through with symbolic computation package Maple. Soliton solutions are expressed by hyperbolic function, trigonometric function and rational function. The attained solutions are verified by symbolic computation software Maple 17. The attained solutions can be demonstrated by two-dimensional (2D) and three-dimensional (3D) graphs. Finally, it can be concluded that the adopted methods are very effective and well-suited to find new closed-form soliton solutions to the other nonlinear evaluation equations (NLEEs) with integer or fractional order.Â
Circular Gabor wavelet algorithm for fingerprint liveness detection
Authors: F.W. Onifade Olufade , Akinde Paul , Olubusola Isinkaye Folasade
Published: February 2021

Biometrics usage is growing daily and fingerprint-based recognition system is among the most effective and popular methods of personality identification. The conventional fingerprint sensor functions on total internal reflectance (TIR), which is a method that captures the external features of the finger that is presented to it. Hence, this opens it up to spoof attacks. Liveness detection is an anti-spoofing approach that has the potentials to identify physiological features in fingerprints. It has been demonstrated that spoof fingerprint made of gelatin, gummy and play-doh can easily deceive sensor. Therefore, the security of such sensor is not guaranteed. Here, we established a secure and robust fake-spoof fingerprint identification algorithm using Circular Gabor Wavelet for texture segmentation of the captured images. The samples were exposed to feature extraction processing using circular Gabor wavelet algorithm developed for texture segmentations. The result was evaluated using FAR which measures if a user presented is accepted under a false claimed identity. The FAR result was 0.03125 with an accuracy of 99.968% which showed distinct difference between live and spoof fingerprint.Â Â Â
Pembingkaian Isu Politik ‘Tampang Boyolali’ oleh Media Online Indonesia
Authors: Mugiarjo Mugiarjo
Published: February 2021

This study aims to present how two Indonesian online media, Mojok.co and Tirto.id, try to act as mediators when political issues shift from substance to cheesy issues that only amplify political polarization. Researchers analyzed five news in each medium using Robert N. Entman’s framing framework including defining problems, diagnosing causes, making moral judgments, and recommendations for treatment. We found there were quality journalism practiced by Mojok.co and Tirto.id for writing good stories. These two didn’t follow ‘quote journalism’ that often performed by online media in Indonesia. This is an example how online media still give some hopes for balancing democracy as their purpose as social controller.Penelitian ini bertujuan untuk menyajikan bagaimana dua media online Indonesia yaitu Mojok.co dan Tirto.id alternatif berupaya menjadi penengah di saat isu politik bergeser dari hal yang substansi menjadi isu gorengan yang hanya mempertebal polarisasi. Peneliti menganalisis lima berita di masing-masing media menggunakan kerangka framing Robert N. Entman meliputi define problems, diagnose causes, make moral judgement, dan treatment recommendation. Hasil penelitian menegaskan pembingkaian yang dilakukan oleh Mojok.co dan Tirto.id menunjukkan adanya praktik jurnalisme yang bermutu dengan tidak larut dalam praktik media online yang mengandalkan kecepatan tetapi justru larut dalam pusaran isu populer sehingga hanya melakukan jurnalisme ‘kutipan’. Hal ini menjadi alternatif baru bagi media-media online untuk kembali menempatkan jurnalisme sebagai penyampai berita dan kontrol sosial, bukan sekadar mengutip pernyataan narasumber.
Beyond Compassionate Aid: Precarious Bureaucrats and Dutiful Asylum Seekers in Italy
Authors: Giudici Daniela
Published: February 2021

In this article, I track shifting paradigms of refugee management in Italy in times of austerity and welfare state restructuring. Drawing on an ethnographic analysis of asylum-related bureaucratic work in Bologna, the essay explores paradoxical and violent effects of welfare decline both on reception workers’ labor conditions and on the dynamic of aid that they end up providing to asylum seekers. On the one hand, recent developments in asylum management in Italy suggest a transition to post-compassionate forms of aid, hinged more on the making of dutiful subjects ready to repay the “hospitality” offered by the state than on the moral imperative to rescue suffering bodies and lives. On the other hand, reception workers’ precarious positioning and unrest hold the potential for exposing the inherent contradictions of state-based narratives, thereby shaping alternative discourses on the causes and responsibilities of both refugee and economic “crises.”

Abstract

Questo articolo ricostruisce l’emergere di nuovi paradigmi di gestione dei rifugiati in Italia, in tempi di austerità e ristrutturazione dei sistemi di welfare. Prendendo spunto dall’analisi etnografica di un ufficio di supporto per l’asilo a Bologna, l’articolo esplora effetti violenti e paradossali dello smantellamento del welfare pubblico, sia sulle condizioni di lavoro degli operatori dell’accoglienza, che sulle dinamiche di aiuto a richiedenti asilo che essi finiscono col contribuire a produrre. Le recenti trasformazioni nella gestione dell’asilo in Italia suggeriscono uno slittamento verso forme di aiuto post-compassionevoli, incentrate più sulla costruzione di soggetti attivamente impegnati nel ricompensare “l’ospitalità” offerta dallo stato, che sull’imperativo morale di salvare corpi e vite sofferenti. Al tempo stesso, la precarietà e il dissenso dei lavoratori dell’accoglienza sono potenzialmente in grado di illuminare alcune delle contraddizioni intrinseche alle narrazioni statali, elaborando così discorsi alternativi sulle cause e responsabilità della “crisi”, sia migratoria che economica.