bluuebunny/crossref_metadata_2025 huggingface dataset:
The Coronal Mass Ejection Visibility Function of Modern Coronagraphs
Authors: Vourlidas Angelos , Balmaceda L. A. , Xie H. , St. Cyr O. C.
Published: September 2020

We analyze the detection capability of coronal mass ejections (CMEs) for all currently operating coronagraphs in space. We define as CMEs events that propagate beyond 10 solar radii with morphologies broadly consistent with a magnetic flux-rope presence. We take advantage of multi-viewpoint observations over five month-long intervals, corresponding to special orbital configurations of the coronagraphs aboard the Solar Terrestrial Relations Observatory (STEREO) and Solar and Heliospheric Observatory missions. This allows us to sort out CMEs from other outward-propagating features (e.g., waves or outflows), and thus to identify the total number of unique CMEs ejected during those periods. We determine the CME visibility functions (VFs) of the STEREO COR2-A/B and LASCO C2/C3 coronagraphs directly as the ratio of observed to unique CMEs. The VFs range from 0.71 to 0.92 for a 95% confidence interval. By comparing detections between coronagraphs on the same spacecraft and from multiple spacecraft, we assess the influence of field of view (FOV), instrument performance, and projection effects on the CME detection ability without resorting to proxies, such as flares or radio bursts. We find that no major CMEs are missed by any of the coronagraphs, that a few slow halo-like events may be missed in synoptic cadence movies, and that narrow FOV coronagraphs have difficulties discriminating between CMEs and other ejections, leading to “false” detection rates. We conclude that CME detection can only be validated with multi-viewpoint imaging—two coronagraphs in quadrature offer adequate detection capability. Finally, we apply the VFs to observed CME rates resulting in upward corrections of 40%.
Determination of fatty acid composition content in the herbal antidiabetic collections
Authors: Savych Alona , Marchyshyn Svetlana , Basaraba Roksolana
Published: September 2020

It was determined the qualitative composition and the quantitative content of fatty acids in the herbal antidiabetic collection № 3, № 4, № 7, № 13, № 19, which are used in folk medicine for prevention and treatment of diabetes mellitus type 2 in Ukraine by GC/MS method. According to the results it was identified 8 fatty acids in the herbal antidiabetic collection № 3, 13 fatty acids in the herbal antidiabetic collection № 4, 12 fatty acids in the herbal antidiabetic collection № 7, 13 fatty acids in the herbal antidiabetic collection № 13 and 11 fatty acids in the herbal antidiabetic collection № 19. The saturated fatty acids were found to be dominated in the raw plant material. The results of the quantitative research showed that the herbal antidiabetic collection № 3 contains 16.13 mg/g of fatty acids, the herbal antidiabetic collection № 4 – 27.17 mg/g, the herbal antidiabetic collection № 7 – 31.98 mg/g, the herbal antidiabetic collection № 13 – 27.37 mg/g, the herbal antidiabetic collection № 19 – 18.79 mg/g. The GC/MS analysis of the fatty acid composition in the herbal antidiabetic collections has shown that this raw material has a lot of fatty acids, which can have a positive effect for the treatment and prevention of diabetes mellitus type 2.
Using pop culture authentically
Authors: Phillips Janae , Bowers Katie
Published: September 2020

Fan activism continues to broaden in use as an organizing method, but care must be given to ensure campaigns are authentic and not pandering. Understanding of source material, mapping of fan communities and major players, and structuring of narrative can help to achieve a more effective, authentic fan activism campaign.
Le lean et l’activité humaine
Authors: Bourgeois Fabrice , Gonon Olivier
Published: September 2020

Les ergonomes se voient adresser de plus en plus de demandes directement en lien avec le lean. Certes, le Just in time, le kanban, le kaisen… ne sont pas réellement nouveaux dans le paysage. Ce qui par contre l’est, c’est son irruption dans l’entreprise comme système global, et la grande agitation des valeurs qu’il véhicule. Il indique un changement très important des référents notionnels de l’efficacité des entreprises, impactant les ressources de travail et l’interprétation des résultats. Les promesses du lean offrent aux entreprises une opportunité de « changer » non seulement en « mieux » (plus grande agileté, réactivité, souplesse…), mais aussi en « bien » (affranchissement du taylorisme au point de se trouver une proximité naturelle avec l’ergonomie). Cette dernière affirmation interpelle. Elle est initiée par les spécialistes du lean, et non par les ergonomes, auquel cas il semble normal qu’une réponse « disciplinaire », aujourd’hui inexistante, soit apportée. Des positionnements au sein de l’ergonomie existent déjà, mais couvrent un spectre très large allant, de ceux qui soutiennent que le lean n’est pas loin de correspondre à la fin de l’histoire de l’ergonomie, étayant ainsi la thèse de la correspondance, à ceux qui y voient une nouvelle représentation du taylorisme, et la nouvelle menace contre laquelle combattre. Sur cette question d’actualité, qui fait donc controverse, l’intention des auteurs est d’initier un échange entre praticiens et chercheurs afin de parvenir à une meilleure identification de la place de l’activité (de travail) et celle de l’ergonomie.
Video 2 - Natural History of the Enigma (2003-08).
Authors: Badani Pat , Kac Eduardo
Published: September 2020

Video 2 - Natural History of the Enigma (2003-08). Duration 6:26. Video interview filmed by Pat Badani at the School of the Art Institute of Chicago, USA. 09/25/17
Video 1- Entretiens d'Artelogie avec Karen Cordero Reiman.
Authors: Vaudry Élodie , Cordero Karen
Published: September 2020

Filmada por Élodie Vaudry a Karen Cordero en Ciudad de México, México.
Video 3- Entretiens d'Artelogie avec Karen Cordero Reiman.
Authors: Vaudry Élodie , Cordero Karen
Published: September 2020

Filmada por Élodie Vaudry a Karen Cordero en Ciudad de México, México.
Study of organic residues in vessels of archaeological origin with physicochemical analytical techniques
Authors: Kyriaki Koupadi
Published: September 2020

Ce poster présente les résultats d'analyse physicochimique des résidus organiques d'artefacts en alliage de cuivre, datés entre le 5e et le 7e siècle apr. J.-C.. L'IRTF et  GC-MS ont été utilisés pour l'identification de la composition des résidus. Des marqueurs biologiques de résine de pin ont été identifiés dans un des échantillons, tandis qu’une large gamme d'huiles et des graisses, avec leurs produits de dégradation, ont été identifiées dans tous les échantillons et associées avec la présence d'huile végétale extraite des plantes de la famille des Brassicacées.
Material study and conservation of face-mounted photographs and digital prints
Authors: Arenas Mireya , Fernandez-Villa Silvia Garcia
Published: September 2020

Le montage par la face des photographies est une méthode d'exposition contemporaine de la photographie qui est bien établie aujourd'hui dans les musées et galeries d'art et qui présente des problèmes spécifiques dans le domaine de la conservation et de la restauration. La recherche présentée ici inclut l'étude des principaux matériaux utilisés, considère différentes sources et documentations et aborde également l'analyse scientifique et les tests de vieillissement accéléré qui sont actuellement en développement.
Chronologie 1897-1947
Authors: Persyn Emmanuel
Published: September 2020

Sur une période d’un demi-siècle, la chronologie énumère les principaux événements qui annoncent et qui suivent la Déclaration Balfour. Sont insérés des événements qui ne sont pas liés à la Déclaration mais sont importants dans le contexte international des deux guerres mondiales et de l’entre-deux-guerres.
Portable Music Videos? Music Video Aesthetics for Handheld Devices
Authors: Keazor Henry
Published: September 2020

Cette tribune se propose d’examiner l’approche et les résultats d’un projet de recherche de trois ans qui considère les transformations des clips musicaux à l’heure de leur consommation croissante sur des dispositifs mobiles. Dans la mesure où ceux-ci s’accompagnent de conditions spécifiques concernant la taille des écrans (ceux des téléphones et des tablettes étant plus réduits que ceux des ordinateurs de bureau) et le son, les clips doivent s’adapter, tant du point de vue de leur esthétique visuelle que de leurs principes de montage acoustique. En suivant le propos de Jean-Luc Godard selon lequel « une innovation technique est sans valeur si elle ne s’accompagne pas d’une innovation formelle correspondante, leur association forgeant ce que l’on appelle le “style” », ce projet ne se contente pas d’examiner des clips musicaux, mais analyse aussi la réception de projets tels que l’app-album de Björk Biophila (2011).
When Only War Can Kill the Silence: Listening to No One Is Innocent after 13 November 2015
Authors: Velasco-Pufleau Luis
Published: September 2020

Partant d’un entretien avec le chanteur de No One Is Innocent, cet article explore certains des enjeux éthiques et politiques de l’écoute et de la création musicale après les attentats du 13 novembre 2015 à Paris. Il croise les témoignages de deux rescapés de l’attentat du Bataclan concernant les rapports entre le rock de No One Is Innocent et leur processus de reconstruction. Dans les jours et les semaines qui ont suivi les attentats du 13 novembre, jouer ou assister à un concert de rock n’est pas un acte anodin. Cet article montre de quelle façon le son et la musique peuvent tisser des réseaux de résistance ; de quelle façon le rituel du concert peut constituer un espace de transformation de l’expérience sensorielle et de la mémoire collective de la violence armée.
Building Resilient, Smart Communities in a Post-COVID Era
Authors: Doyle Aoife , Hynes William , Purcell Stephen M.
Published: September 2020

The COVID-19 pandemic spread rapidly throughout the world in early 2020. Beyond the substantial health impacts, the crisis has served as a catalyst for a dramatic shift in working practices, a greater reliance on technology, and a subsequent reduction in air pollution and greenhouse gas emissions in the most heavily populated parts of the planet. Indeed, the crisis has highlighted the interconnected nature of society's vulnerabilities while also demonstrating that transformational change is possible. These rapid changes have ignited debate around how to build more resilient societies and the role of planning in promoting equitable and sustainable recovery. This article presents key insights from Ireland, as policymakers grapple with these questions and the role of technology in ensuring ongoing delivery of services and a continuation of democratic processes. Specifically, this short article focuses on the impact of the pandemic on town centres and regional growth in Ireland and the potential interventions which can aid in addressing recently intensified local challenges.
Changing Mobility Lifestyle
Authors: Pászto Vít , Burian Jaroslav , Macků Karel
Published: September 2020

The article is focused on a detailed micro-study describing changes in the behaviour of the authors in three months before and during the COVID-19 pandemic. The study is based on data from Google Location Service. Despite the fact it evaluates only three people and the study cannot be sufficiently representative, it is a unique example of possible data processing at such a level of accuracy. The most significant changes in the behaviour of authors before and during the COVID-19 quarantine are described and interpreted in detail. Another purpose of the article is to point out the possibilities of analytical processing of Google Location while being aware of personal data protection issues. The authors recognize that by visualizing the real motion data, one partially discloses their privacy, but one considers it very valuable to show how detailed data Google collects about the population and how such data can be used effectively.
Smart Technologies, Back-to-the-Village Rhetoric, and Tactical Urbanism
Authors: Graziano Teresa
Published: September 2020

This viewpoint article is aimed at critically scrutinizing both institutional and bottom-up narratives about post-COVID planning scenarios in Italy. Through a critical multimedia discourse analysis, the article tries to deconstruct the most recurring narratives about the future of cities in Italy, particularly those interlacing smart city rhetoric with alternative models of settlements and “soft” planning micro-actions, in order to highlight both conflictual perspectives and new potential paths to follow for a more inclusive tech-led urban development.
Metal phytosorption potential of Hydrocotyle ranunculoides for mitigation of water pollution in high Andean wetlands of Peru
Authors: Campó Walter Javier Cuadrado , Custodio María , Orihuela Carmela Emperatriz Vicuña , Fernández Richard Pavel Peñaloza
Published: September 2020

The phytosorption potential of metals of Hydrocotyle ranunculoides was evaluated for the mitigation of water pollution in the high Andean wetlands of Peru. The plants were selected from 10 wetland sites in the community of Pomachaca- Tarma and were washed with potable water, dried, ground, weighed, chemically digested and read with Varian AA 240 atomic absorption equipment. The plant showed copper concentrations in the root (12.08 ± 1.67 mg/kg) greater than the stem (7.37 ± 1.00 mg/kg), followed by the leaves (7.37 ± 1.56 mg/kg).  Lead concentration in the root was 0.228 ± 0.711 mg/kg, but was not found in the stem or leaves. The highest zinc concentration was in the root (67.52 ± 12.57 mg/kg) to the stem (53.30 ± 0.61 mg/kg), followed by the leaves (43.99 ± 8.49 mg/kg). Finally, iron was higher in the root (5571.28 ± 693.94 mg/kg) than in the leaves (342.76 ±122.09 mg/kg), followed by the stem (291.94 ± 54.84 mg/kg). Surrounding water had pH between 7.2 and 7.6; no copper and lead were found, zinc was 0.005 ± 0.012 mg/L and iron was 0.009± 0.007 mg/L. In the sediment, copper was 26.12 ± 0.65 mg/kg, lead 28.25 ± 2.41 mg/kg, zinc 85.98 ± 11.38 mg/kg and iron 26111.89 ± 614.37 mg/kg. These results indicate that this plant absorbs metals in the order of Fe>Zn>Cu>Pb and is an alternative for the development of phytotechnology, oriented to the treatment of effluents with metals that contaminate water in wetlands.
Prevalence and antibiotic susceptibility profile of Staphylococcus aureus from milk and milk products in Nasarawa State, Nigeria
Authors: Yakubu A. , Abdullahi I.O , Whong C.Z. , Olayinka B.
Published: September 2020

This study determined the prevalence and antibiotic susceptibility profile of Staphylococcus aureus isolated from milk and milk products in Nasarawa State, Nigeria. A total of 180 samples comprising of fresh raw milk, bulk milk, Nono, and Kindirmo were collected over a period of 6 months. Standard microbiological procedures were employed in the isolation, identification, characterization and determination of the antibiogram of S. aureus from the milk samples. Characterization was achieved by morphological, biochemical characteristics using conventional methods and Microgen® STAPH-ID kits. The isolates were tested for susceptibility or resistance to a panel of 11 commonly used antibiotics using the agar disc diffusion technique. Out of the 180 milk samples examined, nine (9) S. aureus were isolated giving a prevalence of 5.0%. The occurrence of S. aureus was higher in Nono (12.1%) and Kindirmo (10.6%) than in fresh raw milk (5.9%). The kind of water (well water) used for cleaning utensils at the Nono and Kindirmo selling points was found to be a risk factor associated with the occurrence of S. aureus in the products. All of the isolates were resistant to cefoxitin (100%), ampicillin (100%), and amoxicillin/clavulanic acid (100%). The isolates displayed various rates of resistance to erythromycin (22.2%), sulphamethoxazole/trimethoprim (22.2%), and tetracycline (44.4%). Five (5) antibiotic resistance patterns were recorded among the isolates an indication of different levels of use and misuse of antibiotics in the areas studied. The detection of Staphylococcus aureus in fresh and fermented milk in the areas studied suggests that consumption of dairy products especially those produced using traditional methods, constitute a hazard to consumers. It is recommended that since compliance with basic hygiene requirements is not guaranteed, hazard analysis and critical control points (HACCP) concepts should be seen as a part of an effective total hygiene concept at the selling points.

Keywords: Antibiotic susceptibility profile, Milk, Nasarawa State, Nigeria, Prevalence, Staphylococcus aureus
Retrospective study of dog bites and cases of rabies virus infected dogs in slaughter houses in Makurdi, Nigeria
Authors: Ikye-Tor P.M. , Kwaga J.K. , Kia G.S.N. , Umoh J.U. , Ikye-Tor T.J.
Published: September 2020

This study was carried out to obtain a 16-year retrospective data on dog bites/suspected dog rabies cases and to determine the prevalence of rabies antigen in the brains of dogs slaughtered for human consumption in Makurdi, Benue State. Data for retrospective studies (2003 - 2018) of dog bite/suspected rabies cases was collected from both government and private veterinary clinics in Makurdi while dog brain samples were collected from the dog slaughter slab at the mammy market in Makurdi. A total of 139 dog bite/suspected rabies cases were reported between January, 2003 and December, 2018 in the veterinary clinics with majority (55.3%) of the victims being children less than 16-years old. Only 18 (12.2%) of the offending dogs were quarantined at the time of bite, 11 of which died in quarantine. Five samples from the dogs that died in quarantine were later confirmed positive for rabies at the National Veterinary Research Institute Vom, Nigeria. Of the 464 brain samples collected from the slaughter slab, 52 (11.2%) tested positive for rabies antigen through the direct fluorescent antibody technique. The presence of rabies antigen in apparently healthy dogs may serve as a source of spread of the virus to the public as most people do not regard bites from healthy dogs as possible exposures. There is need for public health awareness on the health challenges posed by dog bites especially on the possibility of developing rabies from such bites, and the need to promptly report every bite so that proper medical attention can be given. With the world looking at eliminating canine mediated rabies by the year 2030, mass enlightenment programmes regarding rabies and its prevention in Makurdi is strongly recommended to help achieve this goal.

Keywords: Bites, Dogs, Rabies, Makurdi, Nigeria, Retrospective
Toxoplasma gondii infection and risk factors associated with its spread at live bird markets in Katsina Metropolis, Nigeria
Authors: Aliyu M.B. , Maikai B.V. , Magaji A.A.
Published: September 2020

Toxoplasmosis occurs in most species of warm -blooded animals. This study aimed to determine the sero-prevalence of Toxoplasma gondii antibodies in local chickens (Gallus gallus domesticus) in Katsina metropolis. A total of 460 sera were collected from two live bird markets (LBMs) at slaughter points and samples were analyzed by Indirect Enzyme Linked Immuno-Sorbent Assay (ELISA) test kits specific for avian toxoplasmosis. Structured questionnaires were administered to the workers at LBMs to evaluate their attitudes and practices toward Toxoplasma infection. The overall prevalence for T. gondii antibodies was 7.83% (36/460). Gobarau yan kaji had a higher prevalence 9.06% (25) than Central market 5.98% (11). Mean score was 26.42±15.9 and 21.74±9.21 for attitude and practice respectively. There was a significant correlation r=0.717 (p <0.05) between attitude and practice score of the respondents. The level of education and specific duty at the slaughter houses correlated significantly (p <0.05) with attitude and practice mean ranks. There was no association (0.137) between experience on the job and practice score. Attitude and practice ranked as poor, fair and good in this study were 60% (30), 12% (6), 28% (14) and 80% (40), 6% (3), 14% (7) respectively. This result has shown the presence of T. gondii antibodies in local chickens slaughtered for human consumption in Katsina metropolis and this warns on the public health safety problems. There is urgent need for the implementation of public awareness campaign on toxoplasmosis for workers at LBMs in Katsina metropolis.

Keywords: Attitude, ELISA, Live Bird Market, Practice, Seroprevalence, Toxoplasmosis
Peculiar epidermal peg pattern in cane rat skin
Authors: Akpan M.O. , Samuel O.M. , Emikpe B.O.
Published: September 2020

Skin is the largest organ in the body of man and animal where interdigitation of the dermal papillae with epidermal pegs enhances structural stability of the skin especially where frequent pressure is applied. Cane rats are robust rodents with stocky bodies. They are only found in Africa and only a single species known as Thryonomys has been found to exist. This work was designed to establish the nature of the interdigitating structural disposition of the epidermal-dermal interface in T. swinderianus (Greater cane rat) which may account for the fragility and easy tear of their skin. A total of twenty adult male greater cane rats were used. Three samples sized 1cm to 2cm were taken from each of 14 different body sites for histological evaluation for rete pegs. These pegs were generally few in six regions with the following average per light microscopic field: head (5.5±3.7), neck (1.0±1.7), forelimb (5.6±3.7), trunk (4.3±4.2), tail (1.0±1.7) and the hindlimb (6.3±5.3). The neck and the tail parts of the body have the least concentration of this structure compared to other regions evaluated. This few in number of rete pegs may account for the fragility of the skin which makes it difficult to restrain or handle without damage during research work procedures and management during domestication.

Keywords: Epidermal pegs, Fragility, Histology, Peculiar, Thryonomys
Unilateral uterine torsion with a near-complete rip of the affected right horn in a parturient German shepherd bitch
Authors: Kodie D.O. , Oguntoye C.O. , Oyetayo N.S. , Eyarefe O.D.
Published: September 2020

Intra-parturient uterine torsion is a rare condition in bitches with multifactorial aetiologies. It is a cause of obstructive dystocia and is difficult to diagnose with most imaging techniques. Medical management of dystocia in parturient bitches with oxytocin often result in uterine rupture with severe consequences on maternal and foetal health. A three-year-old German shepherd (31kg) bitch presented to the Veterinary Teaching Hospital (VTH), University of Ibadan, Oyo State, Nigeria was diagnosed, after a caesarean section, with intra-parturient right horn torsion (180-degrees intracornual and 360-degrees at the ovarian end) and a near-complete rip of the affected horn from the uterine body. Before presentation, the bitch was said to have whelped three puppies but discontinued apparently due to perceived uterine inertia even when injected with three doses of oxytocin by a caregiver. The bitch’s vital signs were abnormal and reflected signs of progressive shock. Haemogram showed severe anaemia, moderate neutrophilia with left shift, normal plasma protein level and platelet counts. An ultrasound examination revealed the presence of two foetuses in-utero but un-engaged at the bitch’s birth canal. Following patient’s stabilisation, a caesarean section unveiled an empty, involuting, left uterine horn, a 180 degrees intracornual twist of the right horn (separating the foetuses into two closed compartments) and a 360 degrees torsion at the ovarian end, which severely strangulated the vessels and ligament. The affected horn, vessels, and ligament were congested. The gravid horn was nearly ripped from the uterine body at the bifurcation. The torsion was corrected, foetuses evacuated and a hemi-cornuectomy performed. The bitch’s recovery was uneventful. The diagnosis and management of obstructive dystocia is a challenge, especially in poor resource settings. The option of surgical intervention should be considered as an emergency by both pet owners and clinicians to preclude further complications, including those caused by oxytocin.

Keywords: Hemi-cornuectomy, Intra-parturient, Oxytocin, Torsion, Uterine
Middle School Students' Line Graph Skills and Affective States about Common Graph Types Used in Science Courses
Authors: Bursal Murat , Polat Fuat
Published: September 2020

This study investigated the graphing skills and some affective states of middle school students about graphs by their gender, grade level, and the common graph types used in science courses. Participants’ line graph skills, self-efficacy beliefs and attitudes toward graphs, and their personal literacy perceptions about different graph types (line, bar, and pie) are explored quantitatively. Qualitative data was collected about the views of participants about graphs in general, as well as about the factors that impact students like/dislike certain graph types. Based on the findings, while participants were found to lack line graph skills, they were found to hold high self-efficacy beliefs and positive attitudes toward graphs. No significant difference among the dependent variables was found based on gender; however, grade level and graph type variables were found to impact students’ graph skills and personal graph literacy perceptions. Among the commonly used graphs in middle schools, a vast majority of students favored bar graphs, mostly due to the simplicity of them, and disliked pie charts, as finding them difficult to draw.
Prediction of Problematic Internet Usage of University Students by Their Attachment Styles
Authors: Aktürk Ahmet Oğuz
Published: September 2020

The purpose of this study is to predict university students’ problematic Internet use levels by their attachment styles. The participants of the study are the university students at a large university in Turkey. While the Problematic Internet Usage Scale is used to measure university students’ problematic Internet usage levels, the Relationship Scales Questionnaire is used to determine their attachment styles. The Problematic Internet Usage Scale has the following sub-dimensions: excessive usage, social benefit/social comfort and negative consequences of the Internet. The sub-dimensions of the Relationship Scales Questionnaire involve secure, fearful, preoccupied and dismissing. Descriptive statistics, correlation analysis and regression analysis were conducted to analyze the data obtained from the study. Also, correlation and stepwise regression analysis technique are used to investigate the relationship between the problematic Internet usage and the sub-dimensions of the attachment styles. The findings show that the participants have a medium-level of problematic Internet usage. The male university students are more inclined to exhibit problematic Internet usage behaviors than the female students. In addition, the preoccupied, secure and dismissing attachment styles are found to be the significant predictors of problematic Internet usage.
COVID-19 impacts on Disability and Rehabilitation in Bangladesh
Authors: Alam Sharmin , Arafat S. M. Yasir , Hossain K M Amran , Sakel Mohamed
Published: September 2020

Bangladesh is going through a potentially catastrophic situation during the COVID-19 pandemic. The most densely populated country in the world with a high rate of disabled people, poor economic resilience, and lack of proper pandemic preparedness makes it particularly vulnerable. Rehabilitation care for disabled people will fare even worse fate during this pandemic unless a clear national strategy is formulated rapidly, which must be implemented quickly. The paper aims to explain the impact of COVID 19 on the Persons with disability of Bangladesh in epidemiological, healthcare, social, and rehabilitation contexts.
Energy and non–energy Commodities: Spillover Effects on African Stock Markets.
Authors: Amendola Alessandra , Boccia Marinella , Candila Vincenzo , Gallo Giampiero M.
Published: September 2020

This paper examines the volatility transmission from energy and metal commodities
to six major African exporters’ stock markets (Egypt for oil and gold, Nigeria for
oil and gas, South Africa for coal and gold, Tunisia for oil, Uganda for gold and
Zambia for copper). Modelling commodity volatility with the Double Asymmetric
GARCH-MIDAS model with a Student’s t-distribution allows to detect the presence
of impact and inertial stock market volatility spillovers at different lags and to take
into account the leptokurtosis of the commodity series. We then derive the profile
of Volatility Impulse Responses of the stock markets to commodity shocks.
Негізгі мектеп математикасын оқыту барысында оқушылардың білім алуға деген мотивациясы
Authors: Sailaubayeva Adina Bolatbekkyzy
Published: September 2020

Қазақстанның білім беру жүйесі бойынша оқушы 11 немесе 12 жыл мектепте оқиды. Соның ішіндегі ең маңызды және ұзақтығы бойынша негізгі мектеп дей айталамыз, өйткені негізгі мектеп- білім жүйесінің басты буыны болып табылады. Математика негізінен оқушылар үшін күрделі сабақтардың бірі болып табылады, сонымен қатар негізгі мектептің 7 сыныбында математика: алгебра және геометрия болып бөліне бастайды, яғни бұл оқушылардың математика сабағын оқудағы мотивациясын не түсіру, не жоғарталу факторы болу мүмкін. Сондықтан осы уақытта оқушыға мотивация бере алу өте маңызды. Бұл мақалада мотивация сөзі жайлы, мотивацияның туа бітетін немесе жандандыруға болатын қасиет пе, мотивацияның түрлері, мотивацияның оқу барысындағы рөлі, оқу барысында оқушыларды қалай ынталандыруға және ынтасын көтеруге болатыны жайлы айтылады.
Microgreens :The Revolutionary Greens
Authors: Antony Vineetha
Published: September 2020

Microgreens are vegetable greens and herbs that are harvested right after the first set of a plant’s true leaves appear. Many Plants such as broccoli, mustard,etc can be grown as microgreens – consumed right after the first two leaves sprout. However, one needs to be very careful when selecting the plants they choose to cultivate as microgreens.The recent study is conducted with the aim to pinpoint the growth of microgreens .Many of the existing studies proved that the greens are richer in micronutrients.As it is known that the micronutrient malnutrition is a common cause to many of the diseases the knowledge on these types of microgreens are needed as well.
Tools for modelling distance estimation based on RSSI
Authors: Dobrilovic D. , Stojanov Z. , Stojanov J. , Malic M.
Published: September 2020

The systems for localization of resources in indoor environments based on Received Signal Strength Indicator (RSSI) are widely used today. Since satellite navigation systems, such as GPS or GLONASS, have certain difficulties in the indoor environments, the signals of deployed wireless devices, such as sensor nodes, access points etc, are used for localization instead. Those systems are known as Indoor Positioning System (IPS). Those systems are used for resource tracking and positioning in places such as airports, railway stations, shopping malls, warehouses, production facilities, construction sites, and healthcare institutions. The Bluetooth Low Energy is one of the wireless technologies that can be used with great efficiency for indoor localization. It offers easy and economic implementation on mobile devices such as smart phones and tablets. There are many techniques used for determination of position. In a number of methods, such as ROCRSSI or MinMax, the distance from the wireless nodes is used for calculating the location. In those systems the main challenge is to accurately estimate distance from the device based on signal strength. In this paper, usability of various software tools for modelling the distance estimation based on RSSI is discussed. Those software tools are Microsoft Access, R Studio, Octave, and Python.
A software platform to support the energy system resilience study
Authors: Edelev A.V. , Fereferov E.S.
Published: September 2020

The paper addresses the problem of supporting research of the energy systems resilience. The resilience is concerned with the energy system ability to withstand large disturbances. To reach the goal of creating user-friendly software for decision making support in that field, a software platform is considered. It includes some original frameworks for retrieving, gathering, querying and analysing data, and building thematic maps to produce disturbance scenarios and evaluate consequences of their impact. The main advantage of the proposed platform is its applicability for all the stages of the energy system resilience research starting from risk mitigation assessment and ending with comparing alternative recovering or reconstruction strategies.
A formation of the heat pump mathematical models
Authors: Marinchenko A.Y. , Edelev A.V.
Published: September 2020

The paper addresses the mathematical modeling heat pump main elements and heat pump based heat supply systems. It is used in the calculating expected heat supply costs on the basis of a heat supply system functioning simulation. Using these models, the current state of the heat pump NT-60-1 located in the Baikal Museum of the Scientific Center of the Siberian Branch of the Russian Academy of Sciences in Listvyanka was analyzed. Recommendations on improving the heat pump efficiency are given.
Programa Avance:
Authors: Mascarenhas Francinelma De Moura , Andrade Francisca Rejane Bezerra
Published: September 2020

Este artigo traz os resultados da pesquisa realizada sobre o Programa Avance – Bolsa Universitário como indutor da permanência dos alunos egressos das Escolas Estaduais de Educação Profissional (EEEP) do estado do Ceará no ensino superior, que vivem em situação de vulnerabilidade socioeconômica. Para tanto, utilizou-se a abordagem qualitativa, com estudo de caso. Em 2019, foram realizadas entrevistas com três servidores da Secretaria da Educação (SEDUC) e aplicados questionários com 20 bolsistas, dentre os selecionados na primeira edição do Programa em 2017, egressos das EEEP e matriculados na Universidade Federal do Ceará (UFC). Por fim, os resultados da pesquisa demonstraram que, pelo menos durante o primeiro ano do curso de graduação, o referido Programa contribuiu para a permanência do público-alvo dessa pesquisa no ensino superior. Entretanto, a vulnerabilidade desses alunos não se extingue com o término da bolsa, fazendo-se necessário que o Programa contribua mais efetivamente para a permanência desses alunos até a conclusão do curso superior através da oferta da bolsa ao longo da realização do curso.
PESERTA DIDIK DALAM WAWASAN AL-QUR’AN
Authors: Fakhrurrazi Fakhrurrazi
Published: September 2020

Al-Qur'an is a guide to human life from various aspects ranging from social, economic, worship, education and so forth. There are many in the Qur'an about stories in the process of learning about the prophet such as the story of the prophet Moses meeting with the prophet khaidir, the story of the prophet isa, the story of the yahya prophet, the story of Abraham and the judge Lukmanul enshrined in the Qur'an ' about educating their children to be children who always remember Allah and always remind them not to associate partners with God and order their children to always do good deeds, uphold the truth and be good learners and have good morality. Students are an important component in the process of Islamic education. Students suggest people who participate in the education process.
Cetacean diversity of Mauritius
Authors: Webster Imogen , Cockcroft Vic , Cadinouche Adele , Huggins Annette
Published: September 2020

There is limited information concerning the cetaceans inhabiting the coastal waters of Mauritius.  This document details the sightings of cetaceans encountered during April 2008 – September 2014. Boat-based surveys were conducted throughout the year, primarily focusing on spinner and bottlenose dolphin populations that are important for the local dolphin-watching industry.  More than 1246 hours over 749 days of surveys were spent searching for cetaceans.  All cetaceans encountered were recorded. During 2013 and 2014, dedicated diversity surveys were conducted and 2443.6km of search effort was covered around the islands. The encounter rate was 0.025 cetacean sightings/km. Over the total study period 13 species were recorded from 1459 sightings. Species included: Megaptera novaeangliae, Stenella longirostris, Tursiops aduncus, Tursiops truncatus, Globicephala macrorhynchus, Stenella attenuata, Physeter macrocephalus, Mesoplodon densirostris, Feresa attenuata, Peponocephala electra, Grampus griseus and Ziphius cavirostris. In addition, there were strandings of Kogia sima and Ziphius cavirostris. The most common species encountered were spinner dolphins, Indo-Pacific bottlenose dolphins, humpback whales and sperm whales. As expected only humpback whales showed any seasonality in monthly encounter rates (Kruskal-Wallis H = 42.39, Hc = 54.25, p < 0.001). The overall Shannon diversity index was 0.58 (95% CI 0.57–0.60) though this ranged between 0.77 in 2009 to 0.25 in 2014. The Shannon index value for the diversity study was 0.83 (95% CI 0.74–0.91). This study demonstrates the richness of the waters around Mauritius and the importance of the area for beaked whales, migrating humpback whales and the presence of resident sperm whales.
Translocation of trapped Bolivian river dolphins (Inia boliviensis)
Authors: Aliaga- Rossel Enzo , Escobar-ww Mariana
Published: September 2020

The Bolivian river dolphin (Inia boliviensis), locally known as bufeo is an endemic species and categorized as Vulnerable in the Red Book of Vertebrates of Bolivia. Despite the fact that the Bolivian river dolphin is the only cetacean in land-locked Bolivia, knowledge about its conservation status and vulnerability to anthropogenic actions is extremely deficient. We report on the rescue and translocation of Bolivian river dolphins trapped in a shrinking segment of the Pailas River, Santa Cruz, Bolivia. Anthropogenic activities to alter the landscape and create agricultural land in the area include significant deforestation and irrigation channel construction and are likely to be a contributory factor causing the entrapment of these Bolivian River dolphins. The dolphins were trapped in shallow water in a 1 km section of river. Dry season water levels were rapidly falling and this section of river dried up completely.  We collaborated with several institutions, authorities, and volunteers to translocate 26 Bolivian river dolphins, including calves, juveniles, and pregnant females. The dolphins were captured and transported using well-padded boats and vehicles and released into the Rio Grande. Each dolphin was accompanied by biologists who assured their welfare. No dolphins were injured or died during this process. If habitat degradation continue, it is likely that events in which river dolphins become trapped in South America may happen more frequently in the future.
Contact-deformation mechanics of the interaction of lubricated surfaces
Authors: A Dykha  , S Posonsky1
Published: September 2020

The questions of the influence of the lubricant on the conditions of deformation in the contact of solids are considered. The steel spherical specimen was pressed into a greased and dry metal surface. The microstructures of the structure of the surface layer are studied under various conditions of deformation. The diagrams of the relative deformation of the surface layers are constructed. The mechanism of the formation and distribution of internal stresses for dry and greased contact is described. Experimental studies of the introduction of a moving steel indenter into a lubricated surface have been carried out. The relationship of the deformation mechanisms of lubricated surfaces with their wear resistance is determined.
Considerations regarding the laboratory testing of electro-hydraulic heave compensators
Authors: Popescu T C , Petrache M
Published: September 2020

The unpredictable weather and the movements of the floating ships transform the marine environment into one of the most hostile working environments on the planet. Movements of lifting / lowering of vessels / platforms carrying cranes or drilling rigs, caused by the disturbing dynamics of the waves, varying in force, frequency, direction and amplitude, affect the precise positioning of the loads, lead to premature wear of the drilling holes, and endanger the integrity or even the life of the crew members. Due to the resonance in the cable of the load lifting system, caused by the movement of the vessel on a rough sea, the tension in the cable can increase more than 100 times. The safety and protection engineering solution is force compensation, that is the decoupling of the vertical movement of the ship from the one of the floating load. The authors present an experimental model, with the generator and the heave compensator at a small scale, which will simulate in the laboratory the operating modes of heave compensation systems very close to the real ones, existing on ships.
Remote Control Android-based Applications for a Home Automation implemented with Arduino Mega 2560 and ESP 32
Authors: Susany Robert , Rotar Raul
Published: September 2020

As technology becomes cheaper and more reliable, people are taking advantage of it to improve their standard of living. This paper describes how we can integrate some of the available technology into our daily lives to create a safe and comfortable living environment. The provision of high-speed Internet makes it easy to access and monitor various types of devices in real-time from a desktop, a tablet or any device that has the capability to do so. With the help of this framework, all smart home sensors and devices can be tailored to the user's personal needs, and some of the parameters can even be observed and controlled using a mobile phone. There are a range of home automation systems on the market, but they are either generic or, if customizable, costly. The goal of this project was to develop secure and affordable home applications and to examine how some of the applications can be operated from very large distances using Wi-Fi and smartphone technology.
An Approach for controlling Household Electrical devices using Bluetooth communication system via Smartphone devices
Authors: Mohammed Babban Miran Hikmat
Published: September 2020

Technologies software applications and hardware devices in general play a big role in everything in our life, which make things to be done quickly and easily comparing to some few years ago. Even though, these rapid developments in technologies comprises electrical devices that we are use in daily manner as well. In this research, an idea is applied to provide a smart house technology which can control any electrical for any domestic device in households, this is done by using Bluetooth networking connection through using mobile smartphone. The main goal of this research is to show that there are possibilities to control any electrical devices in home via controlling them remotely and at any time and at anywhere around the home. So, it provides easy accessibility to switch on or off devices, also it delivers safety use of those electrical devices.
Prof. Volodymyr Kovalchuk - Invited to 4th TECHNIUM International Conference - Recognition of career
Authors: Editor-in-chief Technium
Published: September 2020

Prof. Volodymyr Kovalchuk  - Invited to 4th TECHNIUM International Conference - Recognition of career
A review of exploring collaboration and learning about climate change adaptation in BREEAM Communities
Authors: Naji Sally , Julie Gwilliam
Published: September 2020

This paper aims to establish a better understanding of the adaptation potential that can be provided through the use of Neighbourhood Sustainability Assessment tools, and how the adaptation effects and is affected by stakeholder collaboration and learning issues provided through the use of Neighbourhood Sustainability tools. An analytical framework will be developed which reviews of concepts and theories of system approach to adaptive management is presented. Characteristics of system approach and adaptive management are discussed across the stages of the development process, considering feedback from each stage. The framework will then be applied using BREEAM Communities tool, which illustrates that social adaptation indicators have been considered, but they need more enhancement in the long term. The paper concludes that the application of the framework that has been developed could enable evaluation of the influence of sustainability assessment tools at neighbourhood scale on organisation, participation, monitoring, risks assessment and responsibility issues towards the adaptation process at different stages of sustainable built environment.
Automation and Electronic Control of Marine Gas Turbine Engine for Ship Revamp
Authors: Niculescu Filip , Claudia Borzea  , Adrian Savescu  , Andrei Mitru  , Mirela Letitia Vasile
Published: September 2020

Gas turbines used in propulsion ensure increased efficiency and safety, with a very good power / weight ratio and with low maintenance and operation costs. Due to becoming out-of-date and reaching the maximum operation hours and expected lifetime, which can cause malfunctioning, older turbine engines on frigates need to be replaced with newer generation propulsion engines. The paper presents the replacement of the turbine engine on a defence frigate, focusing on the automation and electronic control solution employed for a propulsion turbine, integrating state-of-the-art techniques. The electronic system ensures control, monitoring and alarm functions, including overspeed protection. A local control panel interfacing the PLC displays the operating parameters and engine controls, also providing maintenance and calibration sequences. The proposed solution enables both the local and the remote control of the ship’s gas turbine.
Computing Support in Statistical Evaluation of Mathematics Teaching Effectiveness: Development of Students’ Constructive Thinking
Authors: Mihajlov Carević Miroslava , Petrović Milena , Denić Nebojša , Mitrović Aleksandra
Published: September 2020

One of the main tasks in teaching mathematics is to develop students’ constructive thinking. In order to effectively accomplish this task, it is necessary to make a good selection of instructional materials and teaching aids. In order to make good selection and improve the teaching of mathematics, it is, also, necessary to include a statistical analysis of the certain factors’ impact that affect mathematics curriculum. For the purpose of this research, we used the software computational approach ANFIS (adaptive neuro fuzzy inference system) to determine the qualitative impact of several factors on improving students’ ability to create constructive thinking.