bluuebunny/crossref_metadata_2025 huggingface dataset:
Maternal Exposure Results in Long-Term Deoxynivalenol Persistence in Piglets’ Plasma and Modulates the Immune System
Authors: Štěpánová Hana , Hlavová Karolina , Šťastný Kamil , Gopfert Eduard , Levá Lenka , Faldyna Martin
Published: September 2020

Deoxynivalenol (DON)-contaminated feed represents a serious problem for pigs due to their high sensitivity to its toxicological effects. The aim of the present study was to evaluate the impact of intrauterine DON exposure on the immune system of piglets. Pure DON was intravenously administered to sows at the end of gestation (during the last 2–3 days of gestation, one dose of 300 µg per day). The plasma concentration of DON was analyzed using liquid chromatography combined with high-resolution Orbitrap-based mass spectrometry (LC–MS/MS (HR)) and selected immune parameters were monitored six times in piglets from birth to 18 weeks. DON was found in the plasma of 90% of newborn piglets at a mean concentration of 6.28 ng/mL and subsequently, at one, three, and seven weeks after birth with decreasing concentrations. Trace amounts were still present in the plasma 14 weeks after birth. Flow cytometry revealed a significant impact of DON on T lymphocyte subpopulations during the early postnatal period. Lower percentages of regulatory T cells, T helper lymphocytes, and their double positive CD4+CD8+ subset were followed by increased percentages of cytotoxic T lymphocytes and γδ T cells. The capacity to produce pro-inflammatory cytokines was also significantly lower after intrauterine DON exposure. In conclusion, this study revealed a long-term persistence of DON in the plasma of the piglets as a consequence of short-term intrauterine exposure, leading to altered immune parameters.
Structure and Function of the T4 Spackle Protein Gp61.3
Authors: Kanamaru Shuji , Uchida Kazuya , Nemoto Mai , Fraser Alec , Arisaka Fumio , Leiman Petr G.
Published: September 2020

The bacteriophage T4 genome contains two genes that code for proteins with lysozyme activity—e and 5. Gene e encodes the well-known T4 lysozyme (commonly called T4L) that functions to break the peptidoglycan layer late in the infection cycle, which is required for liberating newly assembled phage progeny. Gene product 5 (gp5) is the tail-associated lysozyme, a component of the phage particle. It forms a spike at the tip of the tail tube and functions to pierce the outer membrane of the Escherichia coli host cell after the phage has attached to the cell surface. Gp5 contains a T4L-like lysozyme domain that locally digests the peptidoglycan layer upon infection. The T4 Spackle protein (encoded by gene 61.3) has been thought to play a role in the inhibition of gp5 lysozyme activity and, as a consequence, in making cells infected by bacteriophage T4 resistant to later infection by T4 and closely related phages. Here we show that (1) gp61.3 is secreted into the periplasm where its N-terminal periplasm-targeting peptide is cleaved off; (2) gp61.3 forms a 1:1 complex with the lysozyme domain of gp5 (gp5Lys); (3) gp61.3 selectively inhibits the activity of gp5, but not that of T4L; (4) overexpression of gp5 causes cell lysis. We also report a crystal structure of the gp61.3-gp5Lys complex that demonstrates that unlike other known lysozyme inhibitors, gp61.3 does not interact with the active site cleft. Instead, it forms a “wall” that blocks access of an extended polysaccharide substrate to the cleft and, possibly, locks the enzyme in an “open-jaw”-like conformation making catalysis impossible.
Regulation of Polyomavirus Transcription by Viral and Cellular Factors
Authors: Yang June F. , You Jianxin
Published: September 2020

Polyomavirus infection is widespread in the human population. This family of viruses normally maintains latent infection within the host cell but can cause a range of human pathologies, especially in immunocompromised individuals. Among several known pathogenic human polyomaviruses, JC polyomavirus (JCPyV) has the potential to cause the demyelinating disease progressive multifocal leukoencephalopathy (PML); BK polyomavirus (BKPyV) can cause nephropathy in kidney transplant recipients, and Merkel cell polyomavirus (MCPyV) is associated with a highly aggressive form of skin cancer, Merkel cell carcinoma (MCC). While the mechanisms by which these viruses give rise to the relevant diseases are not well understood, it is clear that the control of gene expression in each polyomavirus plays an important role in determining the infectious tropism of the virus as well as their potential to promote disease progression. In this review, we discuss the mechanisms governing the transcriptional regulation of these pathogenic human polyomaviruses in addition to the best-studied simian vacuolating virus 40 (SV40). We highlight the roles of viral cis-acting DNA elements, encoded proteins and miRNAs that control the viral gene expression. We will also underline the cellular transcription factors and epigenetic modifications that regulate the gene expression of these viruses.
Meta-Transcriptomic Discovery of a Divergent Circovirus and a Chaphamaparvovirus in Captive Reptiles with Proliferative Respiratory Syndrome
Authors: Chang Wei-Shan , Li Ci-Xiu , Hall Jane , Eden John-Sebastian , Hyndman Timothy H. , Holmes Edward C. , Rose Karrie
Published: September 2020

Viral pathogens are being increasingly described in association with mass morbidity and mortality events in reptiles. However, our knowledge of reptile viruses remains limited. Herein, we describe the meta-transcriptomic investigation of a mass morbidity and mortality event in a colony of central bearded dragons (Pogona vitticeps) in 2014. Severe, extensive proliferation of the respiratory epithelium was consistently found in affected dragons. Similar proliferative lung lesions were identified in bearded dragons from the same colony in 2020 in association with increased intermittent mortality. Total RNA sequencing identified two divergent DNA viruses: a reptile-infecting circovirus, denoted bearded dragon circovirus (BDCV), and the first exogeneous reptilian chaphamaparvovirus—bearded dragon chaphamaparvovirus (BDchPV). Phylogenetic analysis revealed that BDCV was most closely related to bat-associated circoviruses, exhibiting 70% amino acid sequence identity in the Replicase (Rep) protein. In contrast, in the nonstructural (NS) protein, the newly discovered BDchPV showed approximately 31%–35% identity to parvoviruses obtained from tilapia fish and crocodiles in China. Subsequent specific PCR assays revealed BDCV and BDchPV in both diseased and apparently normal captive reptiles, although only BDCV was found in those animals with proliferative pulmonary lesions and respiratory disease. This study expands our understanding of viral diversity in captive reptiles.
Binding Mechanism Elucidation of the Acute Respiratory Disease Causing Agent Adenovirus of Serotype 7 to Desmoglein-2
Authors: Hograindleur Marc-André , Effantin Gregory , Fenel Daphna , Mas Caroline , Lieber André , Schoehn Guy , Fender Pascal , Vassal-Stermann Emilie
Published: September 2020

The study of viruses causing acute respiratory distress syndromes (ARDS) is more essential than ever at a time when a virus can create a global pandemic in a matter of weeks. Among human adenoviruses, adenovirus of serotype 7 (HAdV7) is one of the most virulent serotypes. This virus regularly re-emerges in Asia and has just been the cause of several deaths in the United States. A critical step of the virus life cycle is the attachment of the knob domain of the fiber (HAd7K) to the cellular receptor desmoglein-2 (DSG2). Complexes between the fiber knob and two extracellular domains of DSG2 have been produced. Their characterization by biochemical and biophysical methods show that these two domains are sufficient for the interaction and that the trimeric HAd7K could accommodate up to three DSG2 receptor molecules. The cryo-electron microscopy (cryo-EM) structure of these complexes at 3.1 Å resolution confirmed the biochemical data, and allowed the identification of the critical amino acid residues for this interaction, which shows similarities with other DSG2 interacting adenoviruses, despite a low homology in the primary sequences.
Twelve Children with Varicella Vaccine Meningitis: Neuropathogenesis of Reactivated Live Attenuated Varicella Vaccine Virus
Authors: Heusel Ethan H. , Grose Charles
Published: September 2020

Varicella vaccine is a live attenuated varicella-zoster virus (VZV). Like its parental strain called VZV pOka, the vaccine virus vOka retains some neurotropic properties. To better understand vOka neuropathogenesis, we reassessed 12 published cases of vOka meningitis that occurred in once-immunized and twice-immunized children, all of whom had bouts of herpes zoster preceding the central nervous system infection. Eight of the 12 meningitis cases occurred in children who had received only one immunization. There was no pattern to the time interval between varicella vaccination and the onset of herpes zoster with meningitis. Four of the meningitis cases occurred in children who had received two immunizations. Since all four children were 14 years old when meningitis was diagnosed, there was a strong pattern to the interval between the first vaccination at age 1 year and onset of meningitis, namely, 13 years. Knowledge of pathogenesis requires knowledge of the location of herpes zoster; the majority of dermatomal rashes occurred at sites of primary immunization on the arm or thigh, while herpes zoster ophthalmicus was uncommon. Based on this literature review, currently there is no consensus as to the cause of varicella vaccine meningitis in twice-immunized children.
Regulation of Expression and Latency in BLV and HTLV
Authors: Pluta Aneta , Jaworski Juan P. , Douville Renée N.
Published: September 2020

Human T-lymphotrophic virus type 1 (HTLV-1) and Bovine leukemia virus (BLV) belong to the Deltaretrovirus genus. HTLV-1 is the etiologic agent of the highly aggressive and currently incurable cancer adult T-cell leukemia (ATL) and a neurological disease HTLV-1-associated myelopathy (HAM)/tropical spastic paraparesis (TSP). BLV causes neoplastic proliferation of B cells in cattle: enzootic bovine leucosis (EBL). Despite the severity of these conditions, infection by HTLV-1 and BLV appear in most cases clinically asymptomatic. These viruses can undergo latency in their hosts. The silencing of proviral gene expression and maintenance of latency are central for the establishment of persistent infection, as well as for pathogenesis in vivo. In this review, we will present the mechanisms that control proviral activation and retroviral latency in deltaretroviruses, in comparison with other exogenous retroviruses. The 5′ long terminal repeats (5′-LTRs) play a main role in controlling viral gene expression. While the regulation of transcription initiation is a major mechanism of silencing, we discuss topics that include (i) the epigenetic control of the provirus, (ii) the cis-elements present in the LTR, (iii) enhancers with cell-type specific regulatory functions, (iv) the role of virally-encoded transactivator proteins, (v) the role of repressors in transcription and silencing, (vi) the effect of hormonal signaling, (vii) implications of LTR variability on transcription and latency, and (viii) the regulatory role of non-coding RNAs. Finally, we discuss how a better understanding of these mechanisms may allow for the development of more effective treatments against Deltaretroviruses.
Incidence of Gastroesophageal Reflux in Dogs Undergoing Orthopaedic Surgery or Endoscopic Evaluation of the Upper Gastrointestinal Tract
Authors: Lambertini Carlotta , Pietra Marco , Galiazzo Giorgia , Torresan Francesco , Pinna Stefania , Pisoni Luciano , Romagnoli Noemi
Published: September 2020

Gastroesophageal reflux (GER) is a common event during general anaesthesia but is often underdiagnosed in veterinary medicine. The oesophageal pH in anaesthetised dogs undergoing endoscopic evaluation of the upper gastrointestinal tract (END group; n = 12) or orthopaedic surgery (ORT group; n = 12) was measured using an oesophageal probe. The dogs were sedated with acepromazine or with methadone or butorphanol, and anaesthesia was induced with propofol and maintained with isoflurane. Of the 24 dogs in this study, 21 (87.5%) had an episode of GER during anaesthesia. The incidence of GER, as well as the first, the minimum, and the maximum pH values, did not differ significantly between the groups. The mean maximum difference versus the first pH value was higher for dogs in the END group (−2.6 ± 3.5) as compared with those in the ORT group (−0.7 ± 2.5), although they were not statistically significant (p = 0.25). The administration of methadone or butorphanol had no significant effect on the development of acidic reflux or biliary reflux. In the acepromazine-sedated dogs, the incidence of GER did not differ significantly between patients undergoing an endoscopic procedure and those undergoing orthopaedic surgery; however, during endoscopy, fluctuations in the oesophageal pH can be expected, even without any clinical signs of GER.
Cost Effectiveness of Ecosystem-Based Nutrient Targets—Findings from a Numerical Model for the Baltic Sea
Authors: Gren Ing-Marie , Tirkaso Wondmagegn
Published: September 2020

An ecosystem-based management of a large sea can give heterogeneous nutrient load targets for different parts of the sea. Cost effective solutions to heterogeneous nutrient reductions targets based on ecological conditions are compared with the same overall nutrient reductions to the Baltic Sea. To this end, a numerical programming model is used, which includes eight different nutrient abatement measures (fertilizer and livestock reduction, cultivation of catch crops, reduced airborne nitrogen emissions, improved cleaning at sewage treatment plants, construction of wetlands and buffer strips, and mussel farming) in 21 catchments of the Baltic Sea. The results indicate that the cost for the international agreement on maximum load targets to different marine basins amounts to 5.3 billion euro. This is more than twice as large as the cost for the same total nutrient load targets to the Baltic Sea without specific targets for the marine basins. However, the resulting nutrient loads to the different marine basins deviate from the basin targets where the loads are lower for some basins but can exceed that for one basin, Baltic Proper, by approximately 22 per cent. Whether or not the ecological costs and benefits from deviations in basin targets under the Baltic Sea targets exceed the excess abatement cost of 2.9 billion euro for achieving the marine basin targets remains to be verified.
Spatial Distribution of Sea Salt Deposition in a Coastal Pinus thunbergii Forest
Authors: Haraguchi Akira , Sakaki Masato
Published: September 2020

We investigated the sea salt deposition process on the soil in a coastal black pine (Pinusthunbergii Parlatore) forest in Japan with reference to sea salt scavenging by the forest canopy and the following washout by precipitation. We collected throughfall and soil-infiltration water along transects crossing the coastal forest and measured the water chemistry—electric conductivity, pH, major cations (NH4+, Na+, K+, Mg2+, and Ca2+), major anions (Cl−, SO42−, NO2−, NO3−, and PO43−), and total organic carbon—at 10-m intervals on the survey transects. Leaching of base cations from surface soil kept lower acidity of soil water in the evergreen broadleaf forest, whereas soil infiltration water was acidified in the soil surface in the P. thunbergii forest. Hot spots of sea salt deposition on the soil surface were observed at hollows of the ground surface, slope-facing coastal line, or sites with an abrupt increase in height where the canopy faces the coast. However, the edge effect in sea salt scavenging was not evident in the juvenile stand at the forest edge, which had a height of <5 m. The sea salt deposition was only evident in the coastal black pine forest with canopy height >10 m.
JUSTIFICATION OF PARAMETERS OF THE LOADING AND TRANSPORT ROBOT MANIPULATOR
Authors: Nesmiyanov I. A. , Nikolaev M. E. , Vorobyova N. S.
Published: September 2020

A parallel-serial structure manipulator was developed for a loading and transport robot. The parameters of the executive drive of the boom of the manipulator are grounded, tick-borne capture service area obtained. An experimental model of the manipulator was made.
MODEL OF A MODULAR ROBOTIC DEVICE ABLE FOR AUTONOMOUS FORMATION OF FUNCTIONAL STRUCTURES
Authors: Pavliuk N. A.
Published: September 2020

A model and prototype of a modular robotic device capable of independently connecting to the TriMod formation and moving in its composition are presented. The device has a load capacity of up to 3 kg and does not need manual control of the movement and connection mechanisms.
Engineering Education and soft skills in the Era of the Fourth Industrial Revolution in Africa
Authors:   Mangosuthu University of Technology., Fomunyam Dr. Kehdinga George
Published: September 2020

The Fourth Industrial Revolution (4IR) is impacting engineering education (EE) in diverse with several changes from the effects of the previous three industrial revolutions. Remarkable industrialization has been recorded in the fourth industrial revolution. However, certain skill gaps has been identified missing in engineering courses and curriculum as employers seek skills development aligned with the fourth industrial revolution (4IR). This paper was guided by Lifelong Learning Theory which explain that the paradigm shift from the first three industrial revolutions to 4IR has led to EE transformation of acquiring not only technical skills but also soft skills. This has led to critical EE curriculum review to extrapolate its impacts of soft skills on 4IR emerging workforce. This paper takes a broad look at the EE and soft skills in the era of 4IR in Africa, while examining the EE in previous revolutions and, exploring the impacts and implications of soft skills on EE. The possibilities of adequate investments in EE and soft skills programmes becomes an imperative to address skill gaps and prepare engineering graduate students for future work. The importance of soft skills, values, and improvement of soft skills in engineering education in 4IR era are discussed among others. Thus, to address soft skills gaps in EE, industrial cooperation and educational partnership is significant to centre on EE curriculum future-oriented skills development to consolidate with 4IR workforce demands. A number of policy recommendations for 4IR compatibility with EE polices are made.
Engineering for Survival in Rural Africa in the Era of Covid 19
Authors:   Mangosuthu University of Technology., Fomunyam Dr. Kehdinga George
Published: September 2020

Engineering has been reputed as a discipline that makes things work better. By the ingenuity of engineering, there is the potential to deploy creativity to solve some of the problems of the world and help in shaping the future. Shortly after the novel coronavirus, SARS-COV-2 (2019-NCov) was initially identified in the Chinese city of Wuhan in a group of patients diagnosed with pneumonia on December 31, 2019, it resulted to fast paced human to human transmission which has generated lots of media stirs and hype concerning issues of public health globally. Corona virus disease 2019 (COVID-19) is a ribonucleic acid virus (RNA) which has the physical appearance of a crown when viewed under the microscope which is as a result of glycoprotein spikes on its envelope. Findings from the study revealed that engineering has great impact on health conditions in rural Africa and the era of COVID-19 brought with it various consequences on the health systems of people. Understanding that there is no known cure for COVID-19 is key and various countries of the world depended on their knowledge and expertise to deal with the disease. This study therefore recommends that there is a need for intensified effort on engineering in rural Africa.
IoT Based Smart Farming
Authors:   received her M.E. and Ph.D. degrees from Anna University, Chennai, Karpagam Dr.J. , Bavithra P. ,   Electrical and Electronics Engineering KPR Institute of Engineering and Technology Coimbatore, India, Merlin I.Infranta ,   Electrical and Electronics Engineering KPR Institute of Engineering and Technology Coimbatore, India, Kousalya J. ,   Electrical and Electronics Engineering KPR Institute of Engineering and Technology Coimbatore, India
Published: September 2020

Agriculture is the key factor to satisfy the economy of our country and it is one of the basic needs of the human resources. Watering the plants is very important in agriculture. By using recent and current technologies irrigation system can be upgraded with the help of sensors and Microcontrollers. Thus, this irrigation system can be groomed and upgraded into an automated process.
Water Pollution Sources Effects and Control
Authors:   Department of Environmental Engineering, NCET, Nagpur, India., Chavhan Aboli , Khan Dr. Arif ,   Principal, NCET, Nagpur, India.
Published: September 2020

Water could be a basic asset inside the lives of people World Health Organization each enjoys its utilization and World Health Organization square measure harmed by its abuse and flightiness (flooding, dry spells, saltiness, causticity, and debased quality). Water could be a limited and weak asset. Thus, utilization of polluted water places lives and jobs in peril because of water have no substitute. There square measure numerous ways during which water implied for human utilization will get debased. These grasp squanders from businesses like mining and development, food process, hot squanders from power creating enterprises, household and agrarian squanders and by shifted microbiological operators. These days, water is being refined by differed ways anyway examination is being led to appear for a great deal of dependable and less expensive ways that may cleanse water at a sensible worth.
Ensembled Machine Learning Model for Aviation Incident Risk Prediction
Authors:   Computer Application student of P.E.S. College of Engineering, Mandya. Karnataka India., H R Anushree , B P Sowmya ,   Assistant Professor in the Master of Computer Applications Department at P.E.S. College of Engineering, Mandya. Karnataka India.
Published: September 2020

With the fabulous development of air traffic request expected throughout the following two decades, the security of the air transportation framework is of expanding concern. In this paper, we encourage the “proactive security” worldview to expand framework wellbeing with an emphasis on anticipating the seriousness of strange flight occasions as far as their hazard levels. To achieve this objective, a prescient model should be created to look at a wide assortment of potential cases and measure the hazard related with the conceivable result. By using the episode reports accessible in the Aviation Safety Reporting System (ASRS), we construct a half breed model comprising of help vector machine and K-closest neighbor calculation to evaluate the hazard related with the result of each perilous reason. The proposed system is created in four stages. Initially, we classify all the occasions, in view of the degree of hazard related with the occasion result, into five gatherings: high hazard, decently high hazard, medium hazard, respectably medium hazard, and okay. Furthermore, a help vector machine model is utilized to find the connections between the occasion outline in text configuration and occasion result. In this application K-closest neighbors (KNN) and bolster vector machines (SVM) are applied to group the everyday nearby climate types In equal, knn calculation is utilized to highlights and occasion results subsequently improving the forecast. At long last, the forecast on hazard level order is stretched out to occasion level results through a probabilistic choice tree.
Performance Analysis of a Roundabout and a 3 leg Intersection Under Heterogeneous Traffic
Authors:   Department of Civil and Construction Engineering, NTUST, Taipei, Taiwan., Awwal Abdul , Khan Aarish ,   School of Civil Engineering, Carleton University, Ottawa, Canada.
Published: September 2020

This paper addresses the analysis of the operational performance of a roundabout and a 3-legged intersection located in quite a busy area of the Aligarh city. The city has an urban population of around 0.9 million people. The roundabout and 3-legged intersection are located in the close proximity of busy commercial areas and schools. Roundabout that has been taken under consideration is un-signalized and 3-legged intersection is priority controlled. The Current study has been undertaken analyze the operational execution of the two intersections and to pave the way for forthcoming investigations related to improvement of the intersections in the Aligarh District region. Traffic data was accumulated on weekdays during peak periods (5:30 pm to 6:30 pm). Video recording was taken in consideration to accomplish this task. The traffic was categorized in 3 classes; light vehicles, heavy vehicles and bicycles. To execute the evaluation of functioning performance of both intersections, SIDRA INTERSECTION software has been used. Results have shown that both the roundabout and 3-legged intersection are operating nearly at their maximum capacities and Level of Service (LOS) is not adequate for such amount of traffic influx into both the intersections. Volume to capacity (v/c) ratio has revealed that both the roundabout and 3-legged intersection are in an unstable state and roundabout condition is worse than the 3-legged intersection as the heavy vehicle volume influx is quite higher for the roundabout.
Analyzing and Solving Stability Problems during the Commissioning of the Steam Turbine
Authors:   Mechanical Engineer, commissioning engineer for Power Plants., Gumeni Dr. Klodian
Published: September 2020

The commissioning of the steam turbine in the CCPP of Vlore (Albania) was carried out after a shutdown of about one year. During previous operation of the unit, in particular in a couple of shutdowns, were observed high vibration at bearing MAD 21. Before the restart, the oil deflector of the MAD21 bearing (the bearing located in the front standard, on the inlet side of the steam turbine and adjacent to the clutch) was modified increasing the radial clearance on the part of the oil deflector acting as a thermal shield with the aim of eliminating / preventing the risk of rubbings. Rubs at the location of the above mention oil deflector were considered as the very likely cause of high vibration at bearing MAD 21. A lot of tests were carried out during the recommissioning phase and the data received were analyzed. This paper details the discovery of the problems, initial attempts to address them and the use of the rotor dynamics tools to find a solution of the problem by the optimization of the bearings. The bearings were not optimized as per rotordynamics analysis (RDA) findings, because it was a too expensive solution. The solution was found making some modification on control system of the ST, without affecting the mechanical integrity of the machine.
Sequential Injection of Carbonated Water: A Possible Process for Coupling CO2 Enhanced Oil Recovery and Storage
Authors:   Chemical & Petroleum Eng., UAE University, Al-Ain, United Arab Emirates., Zekri Abdulrazag Y. , Li Yang  ,   Sinopec Research Institute of PE., Chaoyang Beijing, China,P.O., Alusta Gamal ,   Chemical & Petroleum Eng., UAE University, Al-Ain, United Arab Emirates., Ghannam Mamdouh ,   Chemical & Petroleum Eng., UAE University, Al-Ain, United Arab Emirates.
Published: September 2020

Low salinity and carbonated water flooding have been investigated as possible techniques of improved/enhanced oil recovery. Carbonated water injection consists of dissolving carbon dioxide CO2 in water prior to injection and could be considered as a way to store greenhouse gas safely. Low salinity water flooding is a process of diluting high salinity injection water to a very low level of salinity. In this project, the effect of combining the two techniques in a sequential flooding was studied. The primary aim of this study is to optimize the oil recovery and evaluate CO2 storage during this process, employing low permeability carbonate cores and different sequential carbonated and non-carbonated brines flooding. Formation brine, seawater, low salinity carbonated and non-carbonated were used in this work. Core samples grouped as composite cores with similar over all reservoir permeability. Different sequences of brines were employed to determine the optimum system. The experiment’s result showed that carbonated water performs better than the noncarbonated brines. A new technique for estimate CO2 retention based on the displacement efficiency of the carbonated water flooding system is presented. The interfacial tension, contact angle measurements results indicated that wettability is the dominant mechanism of the studied systems. A sequential composite core flooding consists of carbonated low salinity followed by low salinity and seawater injection (CLSW- LSW-SW) is the optimum flooding system among the studied systems. Technically, CLSW flooding displayed an excellent incremental displacement efficiency ΔDE of 21.4% and CSW exhibited the best CO2 retention per incremental ΔNp.
Design and Implementation of PID GA and Fuzzy logic Controllers for an Electrical Drive with Various Noise Disturbances
Authors:   Assistant Professor, Department of Electrical and Electronics Engineering, RMK Engineering college, Chennai., India., Sundarih Mrs. G, , Shanmugapriyanis Dr. J. ,   Associate Professor, Department of Electrical and Electronics Engineering, Vel Tech Multi Tech Dr Rangarajan Dr Sakunthala Engineering college, Anna university, Chennai, India.
Published: September 2020

It is a great challenge for human being to keep up the constant speed in drive when external Noise disturbances occur due to fluctuations of power supply. In order to avoid these issues, PID controllers are intended using predictable method such as Ziegler Nichols method. But finest level is not obtained in transient and steady state. During the MATLAB Simulation, the error is present transient and steady state behavior in conventional PID controllers. Hence it is necessary to design a PID controller with Novel intelligent technique for speed control of drive like fuzzy and Genetic Algorithm. It considers error as fitness function which is to be minimized using various GA operators such as mutation etc. The Drive will be operated with different external noises like sinusoidal noise, Saw tooth noise and Ramp noise and comparison between PID, GA and Fuzzy PID will be presented and their performances are studied.
Railway Access Control System using Face Recognition
Authors:   Department of Electronics and Communication Engineering, NMAM Institute of Technology, Nitte, Karkala, Udupi, India., V. Veena Devi Shastrimath , Ashwini  ,   Department of Electronics and Communication Engineering, NMAM Institute of Technology, Nitte, Karkala, Udupi, India., Olivero Andrea ,   Department of Electronics and Communication Engineering, NMAM Institute of Technology, Nitte, Karkala, Udupi, India., Bhat Deepa ,   Department of Electronics and Communication Engineering, NMAM Institute of Technology, Nitte, Karkala, Udupi , India.
Published: September 2020

Nowadays booking tickets and getting inside a railway station is adifficult task. Manual checking becomes a burden and time consuming. Also as everything is getting digitized in this modern world introduce face recognition and Quick Response (QR) code system for entry helps in passenger convenience.Face recognition is a method of identifying or verifying the identity of an individual using their face. Face recognition systems can be used to identify people in photos, video, or in real-time.So this system focuses on passengers’ convenience through allowing them to book tickets online and by introducing face recognition system and QR code system for entry to a railway station.This system helps inidentifying people who try to travel without buying tickets and also helps toapprehend the blacklisted person which increases security in the railway station. Online booking is one of the convenient ways tobook the ticket. This system also provides the convenience to passenger by issuing the digital ticket in the form of QR code thus avoiding any fuss due to the loss of the physical ticket.
Characterization, Antibacterial and Anti Inflammatory Activities of Electrospun poly vinyl PVA Containing Aquilaria Malaccencis Leaf Extract ALEX Nanofibers
Authors:   International Institute for Halal Research and Training (INHART), International Islamic University Malaysia, Jalan Gombak, 53100, Kuala Lumpur, Malaysia., Noor Najihah Mohd , Hashim Yumi Zuhanis Has-Yun ,   International Institute for Halal Research and Training (INHART), International Islamic University Malaysia, Jalan Gombak, 53100, Kuala Lumpur, Malaysia., Sani Muhammad Shirwan Abdullah ,   International Institute for Halal Research and Training (INHART), International Islamic University Malaysia, Jalan Gombak, 53100, Kuala Lumpur, Malaysia., Salim Wan Wardatul Amani Wan ,   Department of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, Jalan Gombak, 53100, Kuala Lumpur, Malaysia.
Published: September 2020

Plant-based electrospun nanofibers are widely fabricated as wound dressing in recent years primarily due to the presence of bioactive compounds which can facilitate the wound healing effects. In this study, poly(vinyl alcohol) (PVA) fibre mats containing Aquilaria malaccensis leaf extract (ALEX) [5, 10 and 15 %(w/w)] were fabricated by electrospinning method as potential wound dressing material. The nanofibers were uniform, beadless and randomly oriented with average diameters ranged between 195.27 – 281.20 nm. The presence of ALEX in the PVA nanofibers were evaluated by Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) and differential scanning calorimetry (DSC). The mechanical properties, swelling degree and weight loss of nanofiber mats were also determined. ALEX was rapidly released from the ALEX-loaded PVA nanofibers in the first 12 hours and increased gradually afterwards. The released rate of ALEX was dependent on the ALEX content in the PVA nanofibers. This result is also contributed by the swelling degree and porosity of the nanofibers where the results were found to be between 241.66 – 305.86% and 64.53 – 30.81%, respectively. Meanwhile, the tensile stress and maximum elongation at break for all electrospun nanofiber mats were in the range of 8.56 – 2.68 MPa and 205.94 – 166.31%, respectively. The nanofiber mats inhibited growth of Escherichia coli, Vibrio vulnificus, Bacillus subtilis and Staphylococcus aureus with zone of inhibition of 7.5 – 15.0 mm for gram positive bacteria and 6.1 – 11.7 mm for gram negative bacteria. ALEX-loaded PVA nanofibers also showed potent anti-inflammatory activity against lipoxygenase with percentage of inhibition between 80.887 – 86.977%. Taken together, the results of this study suggest that ALEX-loaded PVA nanofibers have the desired properties of bioactive wound dressing
EFFECTS OF ROLE-PLAY ON INDONESIAN JUNIOR HIGH SCHOOL STUDENTS’ SPEAKING SKILLS: A CLASSROOM ACTION RESEARCH STUDY
Authors: Yoniswan Yoniswan
Published: September 2020

The purpose of this study was to implement Role-Play method in improving English speaking abilities. This research is a classroom action research consisting of 2 cycles, each cycle consisting of planning, implementation, observation and reflection. The study was conducted in eight grade semester I of 2016/2017 academic year at SMP Negeri 17 Bintan with a total of 34 research subjects. The data collection methods used in this study are performance tests and observations. Quantitative method is used as data analysis. The results showed an increase in English speaking skills through Role Play method, in the first cycle with an average score of 63.06 percentage of completeness 17.65%, increased in the second cycle with an average score of 75.65 percentage of completeness 85.29%. It was concluded that Role Play method can improve English speaking skills.
AN EPIDEMIOLOGICAL RETROSPECTIVE ANALYSIS OF THE MICROBIAL FLORA AMONG INFECTED SURGICAL WOUND CASES IN LOCAL SECONDARY & TERTIARY CARE HOSPITALS.
Authors: Nihal Sanchita , Gautam S.K
Published: September 2020

Introduction : According to the CDC, one-to-three cases out of 100 surgeries get infected. There is considerable variation in each class according to the type of surgery being performed. The incidence of infection varies from surgeon to surgeon, from hospital to hospital, from one surgical procedure to another and, most importantly, from one patient to another. The aim of this study was to identify the most common microorganism documented in post-operative wound sepsis in surgery wards of local tertiary hospitals situated in Chhattisgarh. Methods: This Retrospective & Analytical study involved Prior Consent from Hospital Authorities / Medical Superintendents of the Randomly selected Private Tertiary care hospitals to see the records of the patients from Medical Records Department ( MRD) The study included 100 randomly selected case sheets / records of the patients suffering from SSIs in the various surgical wards in local tertiary care centres . Patients of both sex, age > 14 years, who had surgical wound pus discharge, with serous or seropurulent discharge and with signs of sepsis present concurrently were included. Results : Out of the 100 selected case sheets / records of patient’s samples processed, In 91% of records it was found that it yielded aerobic bacterial growth . Monomicrobial growth was seen in 92 samples while 8 samples showed polymicrobial growth. The mean age of the patients was 45.7 years (range 14 to 79 years) and the peak incidence of SSI was observed in age group > 50 years (55%). Among the 100 records / cases, bacterial isolates, S. aureus (52%) and E. coli (24.%) were the commonest organisms. Conclusion: . The information obtained from this study allows a better understanding of the microbial etiology of SSIs in local hospitals which may have epidemiological and therapeutic implications. Using the results of this study, an initiative for establishing improved hospital antimicrobial policy and antimicrobial prescribing guidelines can be undertaken.
GENDER DIFFERENCES IN SOCIAL MEDIA ADDICTION AMONG ADOLESCENT STUDENTS
Authors: S Gaja Lakshmi. , B Selvaraj.
Published: September 2020

There is nothing inherently bad with interacting with friends and other members in online or shares the ideas, likes and dislikes. but for a lot of children, the line between the virtual world and offline reality can become quite hazy. The present study made an attempt to evaluate the gender differences and working and non working mother’s children on social media addiction. A cross-sectional study was conducted among 136 middle adolescent school students in Coimbatore city. Social media usage was assessed by Social media addiction questionnaire. Demographics variables like gender, siblings, parents working status, family type etc., were collected. To analyze the data t-test was used. The study found out that, a significant difference was observed among male and female school students in social media addiction. Further, there is no significant difference exist between working and non-working mother’s children in social media addiction.
Geometria analítica e álgebra linear: A utilização do geogebra como ferramenta de ensino
Authors: Neckel Fagner Alexandre Sotorriva
Published: September 2020

Neste trabalho, discutimos tanto a literatura quanto a prática pedagógica mediada pelas Tecnologias da Informação e Comunicação, em confronto com a aplicação de ferramentas de simulação e manipulação de dados na geometria e álgebra, em uma turma do curso de engenharia no Centro Universitário Sociesc de Curitiba, segundo semestre de 2017. Facilitar o conhecimento da geometria analítica e álgebra linear auxiliada por softwares e reconhecer qual metodologia os acadêmicos indicam ser adequada a seus perfis são objetivos do presente trabalho. A partir do relato de experiência, os acadêmicos indicam mais afinidade para metodologias que os colocam no centro da aprendizagem. Como conclusão, o ensino nas engenharias pode apresentar efeitos mais significativos quando mediada pelos instrumentos tecnológicos, demonstrando, de forma dinâmica, propriedades matemáticas outrora limitadas ao quadro negro.
Síndrome de Burnout na Gestão escolar
Authors: De Carvalho Silva Pereira Erika Cristina , De Souza Luciana Cristina
Published: September 2020

Este estudo teve como objetivo verificar a prevalência das dimensões da Síndrome de Burnout: exaustão emocional (EE), despersonalização (DE) e realização pessoal no trabalho (RP), de 15 profissionais que atuavam na administração escolar de uma rede de ensino privada, situada na região norte do Brasil. Foi uma pesquisa de campo, de abordagem quantitativa e de cunho exploratório. Utilizou o questionário Maslach Burnout Invetory (MBI), com quatro diretoras, cinco coordenadoras pedagógicas, quatro orientadoras educacionais e duas gestoras com dupla função, de coordenadoras e orientadoras. Os resultados mostraram que a maioria das participantes apresentou alta exaustão emocional, baixa despersonalização e moderado nível de realização pessoal no trabalho, evidenciando que a síndrome pode estar em desenvolvimento no grupo investigado. Conclui-se que é preciso um suporte psicológico para lidar com os sintomas iniciais da síndrome na amostra investigada.
Concepções e ações da gestão escolar em relação aos discentes (ou de como perder o foco da ação pedagógica na escola)
Authors: Fernández Silvina Julia
Published: September 2020

Este trabalho busca entender as concepções que diferentes equipes gestoras de escolas públicas municipais de Duque de Caxias (RJ) evidenciam com relação à finalidade do processo de escolarização, assim como algumas das ações decorrentes dessas percepções, em função de garantir o direito à aprendizagem a todos os estudantes. Para isso, realizamos entrevistas semiestruturadas às equipes gestoras de 13 escolas desse município, abordando as explicações situacionais desses gestores e os seus entendimentos sobre as possibilidades de atuação em meio à escassez de recursos e aos conflitos cotidianos. Destacamos que a perda do foco nas aprendizagens e nos processos didático-pedagógicos tem explicação, em parte, na existência de uma teoria pedagógica normativa, com escassa produção analítico-explicativa e praxiológica que possa concorrer para uma maior eficácia na ação pedagógica das equipes gestoras.
Model Pewarisan Cerita Rakyat melalui Lomba Storytelling
Authors: Sofyan Nur Israfyan,
Published: September 2020

Makalah ini bertujuan untuk memaparkan hasil pengamatan saya tentang upaya pemertahanan cerita rakyat melalui lomba strorytelling bagi siswa sekolah menengah. Lomba storytelling adalah salah satu mata lomba yang ada di gelaran English Expo dan diadakan setiap tahun oleh mahasiswa Jurusan Pendidikan Bahasa Inggris   FKIP Universitas Halu Oleo. Cerita rakyat, oleh setiap siswa peserta lomba, diterjemahkan ke dalam Bahasa Inggris dan dipertunjukkan.  Hasil temuan saya menunjukkan bahwa lomba storytelling menjadi ajang pewarisan cerita rakyat. Proses pewarisan cerita rakyat melalui lomba storytelling tidak saja berefek kepada tersampaikannya cerita rakyat yang mengandung konsep kebudayaan masyarakat pemilik cerita rakyat tetapi juga menjadi ajang pemahaman lintas kebudayaan bagi anak-anak seusia sekolah menengah. Lebih lanjut, mereka dapat menjadi agen budaya dalam memperkenalkan konsep kebudayaan melalui lomba storytelling.Istilah kunci: storytelling, pewarisan dan pemahaman lintas budaya.
KONFLIK TOKOH DALAM NOVEL AKU VS SEPATU HAK TINGGI KARYA MARIA ARDELIA
Authors: Suratno Yasin , Sailan Zalili , Ibrahim Irianto
Published: September 2020

Tujuan penelitian ini adalah mendeskripsikan konflik internal dan konflik eksternal tokoh yang terdapat dalam novel Aku vs Sepatu Hak Tinggi karya Maria Ardelia. Penelitian ini termasuk penelitian kualitatif yang tidak menggunaka prinsip-prinsip statistik, melainkan berpedoman pasda teori-teori sastra yang berkaitan dengan penelitian. Metode yang digunakan dalam penelitian ini adalah metode deskriptif analisis. Data yang digunakan dalam penelitian ini adalah teks yang mengandung konflik tokoh dalam novelAku vs Sepatu Hak Tinggi karya Maria Ardelia dengan sumber data berupa novel Aku vs Sepatu Hak Tinggi karya Maria Ardelia yang diterbitkan oleh  PT Gramedia Pustaka Utama cetakan pertama, Juni 2004 yang terdiri atas 358 halaman. Teknik pengumpulan data dalam penelitian ini dilakukan dengan teknik analisis isi. Teknik analisis data menggunakan pendekatan objektif yang memusatkan perhatian pada unsur-unsur yang akan dianalisis. Dari hasil penelitian ini penulis menyimpulkan bahwa konflik yang terdapat dalam novel Aku vs Sepatu Hak Tinggi karya Maria Ardelia ini berupa konflik internal dan konflik eksternal. Adapun konflik internal yaitu konflik batin yang dialami tokoh  novel Aku vs Sepatu Hak Tinggi. Sedangkan konflik eksternal yaitu konflik sosial dan konflik elemental yang dialami tokoh novel Aku vs Sepatu Hak Tinggi karya Maria Ardelia.
NILAI MORAL DALAM NOVEL KERLIP SANG BINTANG YANG HILANG KARYA ANNA AZLINA
Authors: Resti Resti , Yunus Yunus , Marwati Marwati
Published: September 2020

Abstract :Penelitian ini menelaah nilai moral dalam novel Kerlip Sang Bintang yang Hilang karya Anna Azlina. Karya sastra merupakan hasil cipta masyarakat atau sastrawan yang lahir dari fenomena yang ada dalam kehidupan masyarakat, sehingga dengan membaca dan memahami karya sastra berarti membaca dan memahami fenomena kehidupan. Berbagai fenomena kehidupan tersebut dituangkan dalam bentuk karya sastra sesuai konsep, pandangan, kemampuan, da kreativitas pengarang meramu realitas kehidupan ke dalam suatu bentuk karya imajinatif yang mampu memberi kenikmatan dan manfaat bagi kehidupan manusia. Rumusan masalah dalam penelitian ini adalah: bagaimanakah nilai moral yang terdapat dalam novel Kerlip Sang Bintang Yang Hilang  karya Anna Azlina?. Tujuan penelitian ini adalah mendeskripsikan dan menganalisis nilai moral yang terdapat dalam novel Kerlip Sang Bintang Yang Hilang  karya Anna Azlina. Penelitian ini merupakan penelitian deskripstif kualitatif. Sumber data yang digunakan dalam penelitian ini adalah novel Kerlip Sang Bintang yang Hilang karya Anna Azlina. Teknik pengumpulan data menggunakan teknik baca catat. Teknik analisis moral menggunakan pendekatan moral. Hasil analisis menunjukkan nilai moral dalam hubungan manusia dengan diri sendiri terdiri  atas; rasa takut, rasa rindu dan kewajiban terhadap diri sendiri. Nilai moral hubungan manusia dengan manusia lain dalam lingkup sosial terdiri atas; menolong sesama, membantu yang lemah tanpa pamrih, cinta kasih sejati, dan saling menghargai. sedangkan nilai moral dalam hubungan manusia dengan Tuhan terdiri atas; pasrah menurut kepada Tuhan dan bersyukur kepada Tuhan. Dapat dijadikan sebagai bahan yang luas dan memiliki sikap positif terhadap karya sastra secara umum dan novel secara khusus serta dapat membantu siswa dalam memahami lebih mendalam tentang nilai moral yang baik dan buruk. Kata kunci: nilai moral; novel; pendekatan moral