bluuebunny/crossref_metadata_2025 huggingface dataset:
استخدام الطلاءات المتراكبة لتثبيط التآكل الكيميائي في الخزانات المعدنية النفطية
Authors: الساعدي د.سامر عبد الكاظم صبيح
Published: May 2021

استهدف البحث التعرف على مستوى الطلاءات النانوية المتراكبة لسبيكة من الفولاذ والمستعملة فيصناعة الخزانات المعدنية لخزن المشتقات النفطية في شركة توزيع المنتجات النفطية. تم طلاء المعدن بواسطة.Spectrometer OE متراكب الايبوكسي المدعم بدقائق هجينة. تم تشخيص التركيب الكيميائي للسبيكة باستخدام(Atomic Force (AFM)) درست طوبوغرافية وطبيعة سطح مادة الطلاء بواسطة مجهر القوة الذريةكما اعد مقياس معرفي تكون من فحص الصلادة .(Optical Microscope) والمجهر الضوئي Microscopeعلاوة على (Chemical Corrosion) واختبار التآكل الكيميائي (Adhesion) ومتانة الالتصاق (Hardness)St-) لقد تبين إن الفولاذ للصدأ هو من نوع .(Electrochemical Corrosion) اختبار التآكل الكهروكيميائيوجد إن صلادة الطلاء تزداد مع زيادة .(ASTM) 37 ) وهو فولاذ قليل الكاربون حسب المواصفة الامريكية232 ). وقد اظهرت اختبارات التآكل الكيميائي والكهروكيميائي Psi) نسبة التدعيم وان متانة الالتصاق للطلاءكفاءة الطلاء في تثبيط التآكل وحماية المعدن.
Iraq Crude Oil Exports – July, August, September 2018
Authors: Oil Marketing Company Ministry of Oil /
Published: May 2021

Table 1. Iraq Crude Oil Exports – July 2018Table 2. Iraq Crude Oil Exports – August 2018Table 3. Iraq Crude Oil Exports – September 2018
تحسين العدد االوكتاني للكازولين بواسطة التحلل الضوئي باستخدام اشعة UV
Authors: راشد Ali hussain ali rashid , هادي Zina abd alredha , شاه Essam ali shah
Published: May 2021

ان فكرة البحث هي بيان تأثيرالتحلل الضوئي  بإستخدام  الاشعة الفوق بنفسجية UV light  على مزيج الريفورميت والنفثا الخفيفة ( مكونات الكازولين ) لزيادة العدد الاوكتاني بدلا من  استخدام المضافات التقليدية والمعروفة  لتلك العملية التي قد تضر بالبيئة ، حيث كان الهدف هو زيادة العدد الاوكتاني للكازولين بأستخدام تلك الاشعة  ، وكانت نسب مزج كل من المادتين هي  70% ريفورميت , 30 % نفثا خفيفة  لتكوين مادة الكازولين باستخدام عامل مساعد من اوكسيد الزنك ZnO بكمية  0.5  غم  وتعرضه الى الاشعة فوق البنفسجية  لمدة   2-12  ساعة  بكمية  20 لتر ،  اي بنسبة (2.5 غم لكل 100 لتر). حيث تم الحصول على قيم مختلفة من العدد الاوكتاني عند اجراء العديد من  التجارب ، وكانت افضل قيمة تم التوصل اليها  للعدد الاوكتاني هي  83.8   الناتجة من تسليط الاشعة لمدة 12   ساعة على النموذج بعد ان كان العدد الاوكتاني قبل المعاملة   78.6 ونسبة المركبات الاروماتية ازدادت من 34.5  الى 37.7 وتم تقييمها  من خلال الفحوصات المختبرية الخاصة بذلك.  ويمكن اعتبار الحاصل هو عملية ازمرة اي تحويل السلاسل المستقيمة الى متفرعة عند تداخل واختراق الاشعة للكازولين ، مما ادى الى تأثير ذلك على المركبات الاروماتية بشكل واضح والضغط البخاري RVP   .
Poly-Condensation of CDTA with Some Diamines
Authors: Ali Dr. Firyal M. , Rashed Haider H.
Published: May 2021

In this research, new condensed polymers (A1-A8) were prepared by poly condensation between 1, 2-cyclohexyl diamine tetraacetic acid CDTA with different diamines such as 1, 6-Diamino hexane, Melamine, 3,3-,5,5--Tetramethyl benzidine, Benzidine and Cystine. These prepared chelate polymers could be used to remove heavy metals and toxic metal ions in many industrial processes as well as acting as sequestrate for metal ions. The all prepared polymers were characterized by 1H-NMR and FT-IR spectra. The thermal analyses (TGA, DSC) were studied, the intrinsic viscosities were calculated at 30 ˚C using Ostwald viscometer, and all physical properties were measured.
Ambient Air Quality in the Industrial Area of Khor Al-Zubayr, Southern Iraq
Authors: Sultan Abdul Wahab A. , Al-Hassen Shukri I. , Ateeq Adnan A. , Al-Saad Hamid T.
Published: May 2021

The objective of this study is to determine the levels of gaseous pollutants, as indicators of ambient air quality, emitted from the industrial area of Khor Al-Zubayr, Southern Iraq. Several polluting-induced industries, such as petrochemical complex, gas liquefier plant, steel and iron complex, fertilizers factory, and gas-fueled power station, are located on the study area. Gaseous pollutants such as HCs, NOx, SOx, HCHO, O3, and CO2 measured using the portable detection instrument of Drager Chip-Measurement System, Germany, whereas portable instrument of RK1 Gas Monitoring Eagle II, USA, detected the pollutants of CH4, H2S, and CO. Fieldwork carried out during 2012 at six selected stations in the study area. The results have showed that there a spatial variability in gaseous concentrations throughout the selected stations. The measured concentrations of CO, CO2, NOx, SOx, H2S, HCs, CH4, and HCHO ranged from10.11 to 35.63, 100.01 to 400.01, 0.21 to 3.12, 0.92 to 9.59, 1.12 to 5.28, 10.51 to 28.21, 9.21 to 20.52, and 0.11 to 1.25 ppm, respectively; while O3 concentrations ranged from 0.01 to 0.24ppb. By comparison, the recorded levels differ with the previous studies results. These levels lies within the recommended guidelines and in other cases exceed it. Generally, air quality in the study area is safe. Some gaseous pollutants concentrations, however, may represents potentially hazard on the public health. Therefore, the need for more rigorous longitudinal monitoring with repeated measures across seasons and spaces to air pollution is necessary.
Improvement Heavy Oil Transportation IN Pipelines (laboratory study)
Authors: Faris Haidar A. , Abdulrazak Dr. Ayad A.
Published: May 2021

Since from the past, drag has been identified as the main reason for the loss of energy in pipelines and other similar transportation channels. The contribution of this drag is due to mainly viscous of the flow as well as friction against the pipe walls. These energy losses can be identified through pressure drop, which will results in more pumping power consumption.

Due to their very high viscosity heavy oil cannot be transported as such in pipelines and required additional treatments [1].

This work studied flow increase (%FI) in  heavy oil at different flow rates (2 to 10 m3/hr) in two pipes (0.0381 m & 0.0508 m) ID. By using different additives (toluene and naphtha) with different concentrations (2, 4, 6, 8 and 10) %wt at 27ᵒC.

      The results of this study showed Increasing values of FI % and Maximum Dr% of 40.48% and 37.03 % were obtained using heavy oil containing 10% wt of naphtha flowing in pipes of 0.0508 and 0.0381 m I.D. at 27°C respectively.

Increasing values of %Dr with increasing of Reynolds number, fluid velocity and additive concentration, the used additives (toluene and naphtha) reduce the high viscosity of used heavy oil, and naphtha is more efficient as viscosity reducer than toluene.

All these results show treatment heavy oil and improvement their transport in pipelines.
Production of Bio-Ethanol from Iraq Date Crop
Authors: Shahad Dr. Haroun A. K. , Ebraheem Adnan Kahtan
Published: May 2021

This research studied the possibility of producing bio-ethanol from Iraqi date crop. The juice of the Zahdi species of Iraqi dates is chosen for this purpose since it is available in large quantities in Iraq and has good sugar contents. The production procedure consists of fermentation, distillation and dehydration processes. A special rig is designed and assembled for the production. The fermentation process involved the use of three different types of yeast (the bread yeast, cheese Yeast and whey) to choose the best type that requires shorter fermentation time. It is found that the fermentation times for these yeasts are 25, 40 and 34 hrs respectively. The fermentation process is followed by the distillation process, which was performed in three stages. Finally, the dehydration process which is the most important and difficult process because it takes a long time to produce the required concentration of ethanol. This process involved the use of two different types of drying materials (ethylene glycol and calcium oxide). Experimental results show the importance of using dates as a source of bio ethanol in Iraq. It is found that 1 ton of Zahdi yields 300 L of bio-ethanol. It is also found that the cost of 1 L bio-ethanol is about 1022 ID which is about 85 cents. This cost can be reduced in case of mass production. This price is comparable with ethanol prices worldwide.This work proved that date crop in Iraq is an important source of renewable energy comparable to crude oil.
A Critical Review on Corrosion and its Prevention in the Oilfield Equipment
Authors: Kadhim Mothana Ghazi , Ali Dr. Mushtaq Taleb
Published: May 2021

Corrosion in the petroleum industry is one of the crucial failure has to take in consideration in the design of the oilfield equipment due to not only reducing economic losses but also to safe and protect the resources. Thus, various experimental and numerical studies were performed to understand the mechanisms and rules of corrosion types occurred in the oil and gas production fields and determine the factors affecting these types. The current investigation is aimed to comprehensively review different types of corrosion took place in the oilfield and flow line equipment and how they can be prevented. The effect of diverse harsh working environmental representing by the existence of high content of corrosive gases (e.g., carbon dioxide (CO2)and hydrogen sulfide (H2S)) is also considered. Additionally, different types of protection methods used to prevent the corrosion or at least reduce the corrosion rate including inorganic inhibitors (e.g., anodic and cathodic protection methods), organic inhibitors (e.g., film former or coating) and maintain the environmental conditions (e.g., scavengers and biocides) are considerably presented.
Treatment of Refinery Industry Wastewater Using Ion Exchange Technology and Studies Kinetics and Thermo-dynamic Parameters
Authors: Mohammed Dr. Thamer J. Mohammed , Habeeb Saif I. Habeeb , Kreamid Zaydoun K.Kreamid , Ali Ali A. Ali
Published: May 2021

A batch system has been used for removal of chloride, sulfate and sodium pollutantsfrom wastewater of Daura refinery. The fine grained resin lewatit was used in this study,batch experiments were performed to examine the effects amount of resin and mixing timeon the removal efficiency and residual of pollutants. The kinetics and thermodynamics ofadsorption were also analyzed. Various thermodynamic parameters such as enthalpy (ΔH◦),free energy (ΔG◦) and entropy (ΔS◦) showed that the adsorption was endothermic,spontaneous and feasible. The removal efficiency of sulfate, chloride and sodium is (91%,88%, 82%), respectively. The optimum mixing time is (12min) for sulfate and sodium, and(14 min) for chloride. Sulfate adsorption on lewatit fitted well to the pseudo-second-orderkinetic model, but adsorption of chloride and sodium on lewatit behaves to the pseudofirst-order kinetic model.
Influence of Ce2O3 addition on the basicity of Ni/MgO and on its catalytic performance in dry reforming of methane (Turning CO2 to fuel)
Authors: Al-Doghachi Faris A. J. Al-Doghachi , Taufiq-Yap Yun Hin Taufiq-Yap
Published: May 2021

The only way to stabilize the Earth’s climate is to stabilize the concentration of greenhousegases in the atmosphere. In this study, the conversion of methane and CO2 to synthesis gasusing dry reforming over catalysts Ni/Mg1-XCeXO (x= 0, 0.03, 0.07, 0.15; 1 wt% Ni each),dry reforming of methane was performed. The catalysts were prepared by K2CO3 coprecipitationfrom aqueous cerium nitrate hexahydrate and magnesium nitrate hexahydrate.Impregnation of nickel (II) acetylacetonate onto MgO-Ce2O3 was then conducted. TEM,XRD, FTIR, XRF, XPS, and BET characterizations of the catalysts were carried out.Results showed that the catalysts were reduced at 700 °C by H2 prior to each reaction. CH4and CO2 conversions at 900 °C of the catalysts after being tested for 200h decreased in theorder Ni/Mg0.85Ce0.15O, Ni/Mg0.93Ce0.07O, Ni/Mg0.97Ce0.03O, and Ni/MgO. The highest H2and CO selectivities, was observed at a 1:1 CH4:CO2 mole ratio. We further performed adry reforming in the presence of low-concentration oxygen flow (1.25 Vol %) and found anincreased CH4 conversion.
Electrocoagulation Treatment of Oily Wastewater in the Oil Industry
Authors: Al-Rubaiey Najem A. Al-Rubaiey , Al-Barazanjy Mohammed G. Al-Barazanjy
Published: May 2021

Electrocoagulation has turned out to be a rapidly growing area of wastewater treatment due toits ability to remove contaminants that are generally more difficult to remove by filtration orchemical treatment systems. These pollutants may include emulsified oil, petroleumhydrocarbons, suspended solids, and heavy metals. In this novel technology, metal cations arereleased into the wastewater through dissolving metal electrodes. Simultaneously, beneficialside reactions can help in removing flocculated material from the water.Oily wastewater represents a dangerous threat when discharged to the environment; thereforetreating it becomes vital in oil industry. This research has investigated electrocoagulation as asimple, effective and economic technique for treatment of such wastewater. Bench scale reactorwas used to evaluate the factors that may affect the treatment of oily wastewater. Aluminumwas used as a sacrificial anode. Electrodes were arranged at different configurations to selectthe optimal one. Other tested operation parameters include time of treatment, current density,distance between the electrodes, and the electrolyte concentration of the emulsion. Theexperimental results indicated that electrocoagulation was very efficient and able to achieve94% turbidity removal in less 60 min, pH:7, current density of 45 (A/m2).Also the effect of initial concentration of oil (100-1000 ppm) in wastewater, applied voltage(10-20 v), the dose of NaCl electrolyte (0-1 g) and temperature (35-60 oC) were optimized.What distinguishes this work is the the type of the electrodes configuration. Circular horizontalAl/Al electrodes (Ø12 cm) with 17 holes (Ø7 mm) have been found to give the bestelectrocoagulation environment and thus optimum results. The associated electrical energyconsumption is 1.6 kW h/m3 for flotation times of 60 min.
Precautionary Procedures in Basrah Oil Fields Drilling Operations Using Smartphones
Authors: Salih Ibrahim Abdul-Salam Salih , Aljawad Dr. Mohammed Saleh Aljawad , Mahdi Dr. Bashar Saadoon Mahdi
Published: May 2021

Basrah oil fields carry multiple drilling problems that are drilled with difficulty, theseproblems are often treated incompetently. This inefficiency in the procedures in handling theproblems often results in a long wait around time. This study aims to offer the bestprecautionary procedures that can be taken in the form of a smartphone’s application(Precautions Enhancer) to reach trustworthy precautions anywhere needed on the oil field.

The introduction of smartphones to the drilling engineering in particular and the petroleumindustry in general is a critical and a very useful tool that could be developed to gain accuracyand speed on field.The plans of precautions for the expected drilling problems are carried out. The includedformations extend from the upper and lower Faris to Mishrif. The precautions that are set as thebest practice are based on field experience and standardized IWCF methods. The usedprogramming techniques are: the classify algorithm (forward) technique is used to enhancePrecautions Enhancer’s (PE) abilities to avoid the problems.An application called Precautions Enhancer (PE) having a friendly user interface that can be usedin the field is built with a full secure database of the fields’ problems and precautions with adatabase of the drilling problems in Basra oil fields in PE; all of the drilling problems that couldencountered while drilling with their precautionary procedures are all mounted in the database ofPE.
Using Microwave Technology to Extract Organic Matter from Rocks
Authors: Sachit Ahad D. , Basri Lamya J. , Jalil Dr. Rana R. , Hassan Ihab S.
Published: May 2021

Rock extraction is one of the most important processes to prepare samples to core analyses but this method consumes large quantity of solvents and time which means high cost; so it is necessary to innovate new high efficiency ways to replace the traditional methods. The use of microwaves in rock processing is an innovative and unobtrusive method in this field. The design of special furnaces to generate microwave and use them in the extraction of crude oil from rocks become a necessity; because of the need to reduce the costs of this treatment and shorten the necessary time to laboratory experiments and decreased conducted solvent for this process.

A number of samples of carbonate reservoir rocks exposed to microwave radiation assisted extraction and many solvents were used to detect more suitable solvent, the results of the experiment show that some solvents were superior to others and the samples did not harm as a result of that processes, note that the type of rocks may be important in determining the ability of microwave waves to perform the required treatment. And it is approved its high efficiency by decreasing time of cleaning up to less than 25% of time, more economical, in term of the least consumption of solvent and safer by comparison with conventional.
Coating of Oil Pipes Products with Erosion-Resistant Composite Materials Reinforced with Carbonates and Natural Wastes
Authors: AL-Zubaidi Aseel B. , Mohammed Reem Alaa
Published: May 2021

Polymer - based components are exposed to many damage influences during their lifetime. One of these influences erosion, which is a crucial problem in many industrial applications such as pipes, boats, sewage…etc. Due to impingements of solid particles being suspended in the fluids flowing at high velocity. This work reports an investigation of erosion wear characteristics and their resistance to erosion wear after coated by using (spin coating) with rice husk ash – mixed (epoxy resin). Composites specimens have been prepared by (Hand lay-up) molding method. The composite specimens are composed of epoxy resin as the matrix, and 6% vf of glass fiber as reinforcing material and filler powders from natural wastes and industrial processed powders at 3% and 6% vf. The natural wastes are rice husk ash (RHA), carrot waste and sawdust (wood powder) while industrial processed powders are Na2CO3, CaCO3 and K2CO3. Solid particles erosion wear tests and coating after erosion are also carried out. The coating specimens with RHA-mixed epoxy resin at an optimized size of the particles 1.4-4.2 µm improvement erosion wear resistance. The optical microscope results of the coated specimens show those coatings are resistant to erosion parameters.
Teoría Extrapolítica y Postpoliticismo
Authors: Gayozzo Piero
Published: May 2021

Este trabajo propone un ordenamiento de ideas para la creación de una política que escape de lo convencional, de la política clásica: la extrapolítica. Para definir la extrapolítica se incluirán brevemente los conceptos de política, transhumanismo y dialéctica - dialogismo. Se esquematizará la Vía de la Política como un proceso que experimenta la política y que va de la mano de la evolución humana. Se planteará una propuesta postpoliticista para la proliferación correcta de los objetivos transhumanistas, así como se establecerá una ampliación del espectro político convencional, uno que incluya el espectro extrapolítico y las posiciones contrarias a la mejora humana. Finaliza con la inclusión de dos fenómenos potenciales, uno perjudicial y otro ideal, para definir los procesos de aplicación de medidas extrapolíticas, la singularidad bio-socio-política y la inflexión bio-socio-política respectivamente.
Cross-leg flap after posttraumatic osteomyelitis defect: A last resource for limb salvage
Authors:   Orthopaedics Department, Hospital Central do Funchal, Funchal, Portugal, Pereira Eva Campos , Diniz Sara ,   Orthopaedics Department, Centro Hospitalar e Universitário do Porto, Porto, Portugal, Rodrigues Filipe ,   Orthopaedics Department, Centro Hospitalar e Universitário do Porto, Porto, Portugal, Pereira Alexandre ,   Orthopaedics Department, Centro Hospitalar e Universitário do Porto, Porto, Portugal, Sousa Ricardo ,   Orthopaedics Department, Centro Hospitalar e Universitário do Porto, Porto, Portugal
Published: May 2021

We report the case of a patient with a tibial shaft fracture occurring through a chronic posttraumatic osteomyelitis site with significant soft tissue defect. The bone and soft tissue reconstruction procedures are described with a cross-leg fasciocutaneous flap performed as a last resource after previous rotated muscle flap partial failure. Pre-operative CT angiography, to rule outaxial vessel damage and peripherical vessel diseases, and adequate stabilization of both legs are key for a successful limb salvage.
Vegetative propagation of Manilkara bidentata (A.DC.) A.Chev. using mini-tunnels in the Peruvian Amazon region
Authors: Vallejos-Torres Geomar , Ríos-Ramírez Orlando , Saavedra Harry , Gaona-Jimenez Nery , Mesén Sequeira Francisco , Marín César
Published: May 2021

Aim of the study: Manilkara bidentata (A.DC.) A.Chev. (‘quinilla’) is a Neotropical tree highly threatened by extensive agricultural practices and climate change, resulting in a substantial reduction of natural stands and seed availability. Commercially, the propagation through seeds of this species is severely impeded by a low germination rate. Vegetative propagation could be an alternative tool for overcoming this limitation. This study aims to evaluate the vegetative propagation of M. bidentata by rooted cuttings using mini-tunnels in the Amazon.Study area: National University of San Martín, Tarapoto, Region of San Martín, Peru. Forested areas at three localities in the Picota province and two localities in the Bellavista province, San Martín Region, were visited for the selection of plus trees and collection of epicormic shoots from stumps.Materials and methods: the study was performed on leaf areas of 0, 50, and 100% with indole-3-butyric acid (IBA) treatments of 0, 3000, and 6000 ppm, for 9 treatments combinations. The experiment consisted of 3 mini-tunnels, with 3 growth trays established on each mini-tunnel, and 16 cuttings established on each tray (and per treatment), for a total of 144 cuttings.Main results: after 55 days, the best scores in rooting rates (75%), number of roots (3.88), root length (3.26 cm), and budding percentage (94%) were obtained for the combination of 50% leaf area left with 3000 ppm of IBA.Research highlights: we propose the technique of mini-tunnel as a tool for the cloning, rescue, and germplam conservation of M. bidentata.Key words: mini-tunnel; Peruvian Amazon; quinilla; rooting; vegetative propagation.Abbreviations used: indole-3-butyric acid (IBA).
In vitro characterisation of the rumen fermentation pattern of the cell wall fraction from several fibrous sources
Authors: Ortolani Ignacio R. , Amanzougarene Zahia , Fondevila Manuel
Published: May 2021

Aim of study: To isolate fibre effect from other factors when comparing fibrous sources, the rumen fermentation pattern of extracted cell walls was studied.Material and methods: Cell wall fractions from soybean hulls (SH), sugarbeet pulp (BP), palm kernel cake (PK), oat hulls (OH), dehydrated alfalfa meal (DA) and barley straw (BS) were incubated in four 48 h series.Main results: Cell wall extraction efficiency was ± 0.07 units over the neutral detergent fibre content, except for PK, which recovery was 0.20. Gas produced from BP and SH was higher (p<0.05) from 6 h. PK behaved similarly to SH from 6 to 24 h but maintained constant thereafter, whereas gas volume from OH was the lowest from 24 to 48 h (p<0.05). All substrates recorded a maximum rate of gas production at 12 h, except OH, for which fermentation was constant on time. The organic matter disappearance after 48 h incubation agreed with these results, being higher with BP and SH, whereas OH was the lowest (p<0.05). The proportion of methanein total gasproduced was higher in OH than BP at 36 and 48 h (p<0.05). The highest total VFA concentration was recorded with BP (p<0.05). Propionate proportion was enhanced from BP, BS and SH, and that of butyrate was higher with PK and OH, whereas no differences among substrates were recorded in acetate proportion.Research highlights: Fermentation of the cell wall fraction of fibrous feeds is not directly linked to its chemical composition, not even to its lignin proportion.
Centering Ukama Ethic (Relatedness) in the Covid-19 Pandemic ‘New Normal’ in African Higher Education
Authors: Hungwe Joseph Pardon , Ndofirepi Amasa P.
Published: May 2021

This conceptual article examines the ukama ethic concerning the Covid-19 pandemic-induced ‘new normal’ in African higher education. In so doing, we endeavor to appropriate ukama which is a communally oriented value system to militate against socially isolated individualism in Remote Learning and an Ethic of Care that combats social prejudices occasioned by the Covid-19 pandemic in African higher education. Our central argument is that Ukama ethic is contextually appropriate in the Covid-19 pandemic-induced ‘new normal in African higher education. This article does two important things. Firstly, in light of the demands for local thought traditions in African higher education, it advances the social values of relatedness that constitute Ukama ethic to normatively underline the Remote Learning and Ethics of Care. In this regard, a question that is important to us is; if not now in the ‘new normal, then when can local thought traditions be fully incorporated into African higher education? Secondly, in the attempt to appropriate local thought traditions into African higher education, the article offers a critical reflection of Ukama. Despite its limitations, we conclude that the Ukama ethic is important in the Covid-19 pandemic induced ‘new normal’ in African higher education.
The Development of “Friend from Heart” Application based on LINE System to Promote Well-Being of Undergraduate Students of Faculty of Education, Kasetsart University
Authors: Jitanan Manatee , Somanandana Varangkana , Jitanan Sutasinee , Lalitpasan Usanee , Kham-in Sumalee
Published: May 2021

Depression and suicide rates among youths tended to increase. From reviews, many applications and online counseling could reduce depression and anxiety to promote well-being of youths and university students effectively. This study was conducted to develop "Friend from heart" application based on LINE system to promote well-being for undergraduate students of faculty of education, Kasetsart University. The research method included the survey of basic data for developing the application and evaluation of the application by specialists. A total of 72 voluntary students were invited to join an online survey. It was found that most of the students (81.94%) wanted applications that provide physical health information such as exercise, eating healthy food, and health care. However, about 16.66% of students needed an application that can speak or listen problems with video calls. Then, researchers took the services that students were interested more than 50% to develop the applications. It worked through the application, consisting of chatbot, physical health, mental health, and appointment with counselor. The index of item-objective congruence was 0.66-1.00 with additional specialists commenting that the application had an interesting design with good structure to help students. For ethical approval, it was obtained from the Kasetsart University Research Ethics Committee.
Review of Schooling of Learners With Disabilities and the Manifestation of the Hidden Curriculum of Time
Authors: Ressa Theodoto
Published: May 2021

Postsecondary outcomes remain difficult to attain despite their significance to learners with disabilities. This qualitative study investigated the impact of a hidden curriculum of time on the education of five undergraduate students with disabilities at a Carnegie Research One institution in the midwestern U.S. Participants in their quest for an education experienced a hidden curriculum of time in the form of physical impairments, educational costs of ill-health, and disability discrimination. The academic barriers participants encountered in reaching their educational goals suggest that addressing the hidden curriculum of time is essential for authentic inclusion and achievement of postsecondary education outcomes.
Mass Transit Policy: Responding to COVID-19
Authors: Baer Susan E. , Larkin George R.
Published: May 2021

Mass transit is vital to daily life in U.S. cities and many other cities throughout the world. Mass transit systems are vulnerable to pandemics like COVID-19 and other less serious threats. Post COVID-19 mass transit policy must be different than its predecessors if mass transit is to provide a reliable, sustainable, and equitable means of transportation. Future mass transit systems will be the outcome of public health, technological, economic, and political considerations. This paper provides an initial attempt to identify and discuss these four considerations as most relevant to the development of an equitable and efficient mass transit policy for rail and bus systems.
A review of Nwauche’s “The Protection of Cultural and Traditional Expressions in Africa”.
Authors: Inniss Abiola A. A
Published: May 2021

A review of The Protection of Traditional Cultural Expressions in Africa, by Enyinna Nwauche
Study of bearing capacity of skirted
irregular pentagonal footings
on different sands
Authors: Thakur A. , Dutta R.K.
Published: May 2021

Purpose: The paper presents an experimental and numerical study to evaluate the bearing
capacity of unskirted, singly and doubly skirted irregular pentagonal footings on different
sands (S1, S2, S3) at a relative density of 30 %. The skirt depth of the footing was varied
from 0.0B to 1.5B (B is the width of the square footing).
Design/methodology/approach: The experimental and numerical study of the singly and
doubly skirted irregular pentagonal footing resting on sands was modelled in a test tank and
Plaxis 3D software respectively.
Findings: The results of this study reveal that the bearing capacity was higher for the skirted
irregular pentagonal footings on sand S3 followed by sand S2 and S1. The lowest percentage
improvement for the singly skirted footing on sand S3 was 18.51% at a Ds/B = 0.25 whereas
the highest improvement was 90.81% at a Ds/B = 1.50 for the singly skirted footing on sand
S2. The highest percentage improvement for the doubly skirted footing on sand S2 was
95.13% at a Ds/B = 1.5 whereas the lowest improvement was 23.70% at a Ds/B = 0.25 the
doubly skirted footing on sand S3. The results further revealed that the numerically obtained
bearing capacity was marginally higher in comparison to the one obtained experimentally
for the footings on all sands. Further, the experimental results validated the results obtained
numerically with an average deviation of 8%. The percentage improvement in the bearing
capacity was higher for the irregular pentagonal footing resting on sand S2 in comparison to
sand S3 and S1. The settlement response of the irregular pentagonal footings is unchanged
by increasing the number of elements beyond 7700. Both the experimental and numerical
studies revealed a linear elastic behaviour at Ds = 0.5B, while the experimentally obtained
pressure-settlement ratio plot shows a clear failure at Ds= 1B and 1.5B.
Research limitations/implications: The results presented in this paper were based on
the experimental and numerical study conducted on small scale model footings. However,
for the actual footings, further study is recommended using full-scale field size footings to
generalize the results.
Originality/value: No experimental and numerical studies on singly and doubly skirted
irregular pentagonal footings were conducted so far. Hence, an attempt was made in this
article to predict the bearing capacity of these footings experimentally and using Plaxis 3D
respectively.
How Can Urban Parks Support Urban Indigenous Peoples? Exploratory Cases from Saskatoon and Portland
Authors: Finegan Chance
Published: May 2021

In Anglo settler states, parks and Indigenous peoples interact in myriad ways, given the tight connection between Indigenous peoples and land and that parks are manifestations of settler control of land and heritage. Current park–Indigenous research is limited by a focus on rural locales, despite that more than half of Indigenous peoples live in urban areas. This exploratory paper draws connections between literature rooted in urban Indigenous studies and park management. I argue the literature’s current emphasis on rural locales neglects to consider how urban parks, might contribute to reconciliation if they affirmatively support urban Indigenous identities and cultural activities. I use two mini case studies—the Meewasin Valley Authority (Saskatoon, Saskatchewan) and Fort Vancouver National Historic Site (Portland, Oregon)—to highlight some of the ways in which urban parks can support urban Indigenous peoples’ responses to persistent urban settler-colonialism.
Bazele contabilitatii, editia a VI-a revazuta si adaugita
Authors: Munteanu Victor
Published: May 2021

Cartea „Bazele contabilitatii” capata o semnificatie aparte pentru toti cei care doresc sa acceada la seiful rationamentului contabil. Ea este disciplina de introducere in imperiul stiintific al contabilitatii prin care, gradat si metodic, se ia cunostinta cu elementele teoretice fundamentale ale obiectului si metodei sale de cercetare, cu principiile, procedeele si mijlocele specifice concepute si folosite pentru obtinerea, valorificarea si conservarea informatiilor cu privire la pozitia financiara, performanta financiara si fluxurile de trezorerie ale unei entitați. Cartea trateaza aceasta problematica, incercand un echilibru intre ceea ce a acumulat si conservat stiinta si practica contabila pe plan mondial si national si noile curente contabile moderne. Astfel, premisele stiintifice si logice ale contabilitatii sunt abordate prin imbinarea principiilor teoretico-fundamentale clasice cu principiile (conventiile) moderne de organizare si conducere a contabilitatii, acceptate prin standarde de catre comunitatea mondiala si europeana.
Bazele contabilitatii. Lucrari practice (exercitii de logica contabila si lucrare monografica).Editia a VI-a revazuta si adaugita
Authors: Munteanu Victor
Published: May 2021

Elaborat in concordanta cu Fisa disciplinei “Bazele contabilitatii” si avand ca principala sursa de inspiratie manualul “Bazele contabilitatii” editia a VI-a 2020, revazuta si adaugita, acest caiet se prezinta sub forma unui triptic in al carui continut se regasesc: un minimum de elemente teoretice, aplicatii rezolvate si aplicatii propuse spre rezolvare in cadrul seminariilor. De asemenea, se ofera posibilitatea realizarii unei autoevaluari printr-un set de teste grila conceput la nivelul fiecarui capitol.
Limba romana literara in traducerile succesive din Jules Verne
Authors: Chiran Gabriela Aurelia
Published: May 2021

Lucrarea de fata reprezintă o incercare de cercetare sistematică a fenomenelor și tehnicilor traductologice evidentiate în talmacirile romanesti ale romanului Le Château des Carpathes/ Castelul din Carpati, cu scopul de a releva marcile diacronice ale limbii romane literare, de-a lungul celor o suta douazeci si cinci de ani de confruntare cu scrierile lui Jules Verne. Textul Le Château de Carpathes/Castelul din Carpati, despre care discutam aici, s-a bucurat de un succes deosebit in epoca si in posteritate, ajungand la sensibilitatea cititorilor romani, dar si a traducatorilor, intrucat acesta valorifica o limba literara in care terminologia stiintifica de la nivelul de popularizare a stiintelor se îmbina cu elementele stilului beletristic: un vocabular complex, presarat cu expresii metaforice, cu forme arhaice, regionale, dar mai ales cu imprumuturi, cu neologisme obtinute pe aceasta cale a imprumutului sau prin creatii interne partiale ori totale – calcuri lingvistice, derivate, compuse, conversiuni, combinatii intre toate acestea. In plus, romanul in cauza a reprezentat un prilej de mandrie nationala, dat fiind faptul ca Transilvania, un colt de tara romaneasca, a provocat un interes deosebit pentru anticipatorul stiintific francez – un autor de talie mondiala.
Cronicile unui destin. Urme de nesters
Authors: Ostfeld de Bendayan Gertrudis
Published: May 2021

Din povestea de viata a doamnei Gertrudis Ostfeld de Bendayan, cititorul va putea sa constate cum viziunea sa despre lume si alegerile sale existentiale, fie personale sau profesionale, au fost marcate de amprenta destinului. “CRONICILE UNUI DESTIN. Urme de nesters” nu este o carte de sociologie, nici de istorie, ci una cu un mare impact emotional. Autoarea povesteste cum familia sa a reusit sa-si salveze conditia umana in fata regimurilor care au dorit sa transforme fiinta umana in simple obiecte. Aceasta carte este o marturie a unei femei a carei flacara i-a fost predata de catre parintii sai, cu un mandat explicit: "Nu uitati!."
Practica cercetarii in stiintele educatiei. Probleme critice, diagnoza, actiune
Authors: Manolescu Marin
Published: May 2021

Lucrarea noastra se doreste a fi un ghid de bune practici in domeniul cercetarii problematicii complexe si extrem de dinamice a vietii si activitatii in educatia tinerelor generatii. Scoala romaneasca, societatea romaneasca s-au schimbat foarte mult. Incearca sa tina pasul cu evolutiile educationale din Europa si din lume, respectand in acelasi timp traditiile valoroase ale invatamantului romanesc. Acestea nu pot fi ignorate. Ele trebuie cunoscute, intelese, explicate, cercetate, interpretate, acceptate si trebuie procedat in consecinta, in cunostinta de cauza. Fiecare studiu asigura o fundamentare teoretica a problemei investigate si prezinta in continuare designul cercetarii precum si rezultatele, interpretarile, concluziile desprinse, impactul scontat, respectand cerintele impuse de teoria si metodologia cercetarii in stiintele educatiei.
Understanding the Impact of Introducing Lambda Expressions in Java Programs
Authors: Mendonça Walter Lucas Monteiro , Fortes José , Lopes Francisco Vitor , Marcílio Diego , De Almeida Rodrigo Bonifácio , Canedo Edna Dias , Lima Fernanda , Saraiva João
Published: May 2021

Background: The Java programming language version eight introduced several features that encourage the functional style of programming, including the support for lambda expressions and the Stream API. Currently, there is common wisdom that refactoring legacy code to introduce lambda expressions, besides other potential benefits, simplifies the code and improves program comprehension. Aims: The purpose of this work is to investigate this belief, conducting an in-depth study to evaluate the effect of introducing lambda expressions on program comprehension. Method: We conduct this research using a mixed-method study. For the quantitative method, we quantitatively analyze 166 pairs of code snippets extracted directly either from GitHub or from recommendations from three tools (RJTL, NetBeans, and IntelliJ). We also surveyed practitioners to collect their perceptions about the benefits on program comprehension when introducing lambda expressions. We asked practitioners to evaluate and rate sets of pairs of code snippets. Results: We found contradictory results in our research. Based on the quantitative assessment, we could not find evidence that the introduction of lambda expressions improves software readability—one of the components of program comprehension. Our results suggest that the transformations recommended by the aforementioned tools decrease program comprehension when assessed by two state-of-the-art models to estimate readability. Differently, our findings of the qualitative assessment suggest that the introduction of lambda expression improves program comprehension in three scenarios: when we convert anonymous inner classes to a lambda expression, structural loops with inner conditional to a anyMatch operator, and structural loops to filter operator combined with a collect method. Implications: We argue in this paper that one can improve program comprehension when she applies particular transformations to introduce lambda expressions (e.g., replacing anonymous inner classes with lambda expressions). Also, the opinion of the participants shines the opportunities in which a transformation for introducing lambda might be advantageous. This might support the implementation of effective tools for automatic program transformations.
Preparation of Copper Oxide/TiO2 Composite Films by Mechanical Ball Milling and Investigated Photocatalytic Activity
Authors: CHEN Xiuli , LIU Gaihua , ZHANG Guiyin , WAN Haiyi , ZHA Wusheng
Published: May 2021

The Cu/Ti composite coatings were prepared by the mechanical ball milling, the CuO/TiO2 and Cu2O/TiO2 composite photocatalytic films were obtained by the subsequent oxidation process. The microstructure of the composite films was analyzed by X-ray Diffraction (XRD）and scanning election microscope (SEM). The photocatalytic activity was evaluated, the effects of ball milling time on the formation of the Cu/Ti coatings were investigated, and the effects of the oxidation temperature and oxidation atmosphere on microstructure and photocatalytic activity of the films were studied. The results illustrate that the ball milling time has significant effects on the formation of the coatings and the coatings are continuous and compact by ball milling for 15 h. The photocatalytic activity of the CuO/TiO2 composite films is increased first and then decreased with the oxidation temperature increases, and the photocatalytic activity is the best at 500 °C. The CuO/TiO2 composite films are obtained by the oxidation of Cu/Ti coatings at 500 °C for 15 h in the air, while the Cu2O/TiO2 composite films are oxidized in carbon atmosphere. Photocatalysis efficiency of the films is obviously enhanced with the help of the p-n junction heterostructure in the Cu2O/TiO2 composite films.
Zur Einführung einer Rechtsstaatskonditionalität in der Europäischen Union: die Corona-Krise als „Window of Opportunity“
Authors: Bos Ellen , Kurze Kristina
Published: May 2021

The problem of democratic backsliding as well as instruments to protect the rule of law have been acknowledged at the EU level for several years. However, no agreement on the introduction of a rule of law conditionality could be reached among the EU member states until the European Council summit in December 2020. Now, for the first time, the allocation of EU funds to member states is made conditional on the adherence to the principles of the rule of law. To explain how this far-reaching decision became possible despite the persistence of deeply diverging interests, the article draws on the multiple streams framework. More precisely, it is argued that the coronavirus crisis created an unpredictable window of opportunity which was successfully utilised to put the existing proposal for a rule of law mechanism on the agenda again and to finally reach an agreement on a respective regulation.
2020 als Stresstest für die Europäische Union: Herausforderungen in Zeiten der COVID-19-Pandemie
Authors: Meißner Vittoria , Jokela Juha , Tekin Funda , Helwig Niklas , Siddi Marco , Karjalainen Tyyne
Published: May 2021

The COVID-19 pandemic has deeply shaken the European Union (EU) and exacerbated existing prob- lems. How can the EU gain more autonomy in an ever-changing world order, especially when it comes to international supply chains and health security? To what extent can EU member states reconcile their aspiration to build European sovereignty with their efforts to forge multilateralism? What does European resilience mean and what specific actions does the EU need to take in order to strengthen it? How can the EU’s green goals be achieved in times of the COVID-19 pandemic? In this paper, the authors examine the crisis year 2020 in order to present approaches and solutions to tackle these challenges from the perspective of Germany as well as the Nordic and Baltic states.
Die digitale Transformation transparent gestalten
Authors: Klinger Sabine , Mayr Andrea
Published: May 2021

Digitalisierung in sozialen Organisationen sowie digitale Technologien zur Unterstützung der Zusammenarbeit waren bereits vor der Corona-Pandemie weitverbreitet und haben sich inzwischen nicht nur als informelle Lösungen durchgesetzt. Die beiden österreichischen Wissenschaftlerinnen Dr. Sabine Klinger und Prof. Dr. Andrea Mayr haben in einer Studie einige Erfolgsfaktoren digitaler Zusammenarbeit erforscht: Es braucht klare Strukturen und Strategien, um die Digitalisierung der Zusammenarbeit in Organisationen erfolgreich und nachhaltig zu implementieren.
Den eigenen Reifegrad erkunden
Authors: Kose Anna-Lena
Published: May 2021

Die Digitalisierung betrifft viele Bereiche der Organisation, nicht nur die IT. Das Deutsche Rote Kreuz bietet Unterstützung bei der Analyse und betriebsbezogenen Weiterentwicklung digitaler Arbeitsweisen in sozialen Organisationen.
From Leonardo to the Next Rembrandt – The Need for AI-Pessimism in the Age of Algorithms
Authors: Mezei Péter
Published: May 2021

Artificial Intelligence (AI) has become a part of our daily life, and “algorithmic creativity” has similarly gained a spotlight recently. From paintings to music, machines generate outputs that seem to comply with various prerequisites of copyright protection. The idea (and to some degree the need) to honour such achievements by legal protection has also emerged. This article demonstrates that contrary to the view of the proponents of an AI-copyright regime, time has not ripened for AI-copyright. The core elements of copyright law - namely the concept of authorship, originality and moral rights, as well as copyright’s history and incentives - are deeply rooted in an anthropocentric (although not only author-centric) world. Unless paradigm shift in copyright law, the lack of direct human element of an AI-generated output shall lead to the unavailability of copyright protection for these outputs. The article similarly highlights why the proposed alternative forms of copyright related rights or sui generis protection are doctrinally unfounded or practically unfit to provide for a sound solution that does not destroy the existing copyright regime and diminish the value of human creations.
A interpretação heideggeriana sobre o eterno retorno de Nietzsche e a questão do tempo
Authors: Amusquivar Júnior Newton Pereira
Published: May 2021

O objetivo do artigo é analisar a interpretação de Heidegger sobre o eterno retorno de Nietzsche, colocando como questão central a problemática do tempo. Para Heidegger, o filósofo de Zaratustra continua sendo metafísico, mas nele se constitui também o acabamento da metafísica. O eterno retorno tem importância fundamental nesse fim da metafísica, pois pensando o instante como algo eterno, se suprime a metafísica por dentro. Nas preleções de Nietzsche I, a interpretação sobre o eterno retorno se interliga com esse fim da metafísica e inversão do platonismo. Com isso, se revela uma concepção de tempo contrária à metafísica. Por outro lado, na década de 1950, em Quem é Zaratustra de Nietzsche? e a preleção O que significa pensar?, Heidegger aprofunda mais a interpretação do eterno retorno e de tempo, vendo na filosofia nietzschiana não só o acabamento da metafísica, mas também a possibilidade da passagem ao o poético.