bluuebunny/crossref_metadata_2025 huggingface dataset:
Γεωμορφολογική εξέλιξη του λεκανοπεδίου των Αθηνών
Authors: ΠΑΥΛΟΠΟΥΛΟΣ Κ. , ΚΟΤΑΜΠΑΣΗ Χ. , ΣΚΕΝΤΟΣ Α.
Published: September 2018

This study is based on the collection, process and management of the geographical, geological and geomorphological data of the area of the basin of Athens with main objects the construction of a geomorphological map of the study area, the description and the study of the geoshapes that exist and the approach of the geomorphological evolution of the basin. The main erosion forms such as gorges and erosion surfaces are observed in the northern part of the study area at the mountain of Parnitha compare to the deposition forms that we meet in the southern part. As well as landforms like inselberg and alluvial fans give important information for the geomorphological evolution of the basin of Athens.
Εκτίμηση της τρωτότητας στη διάβρωση των γεωλογικών σχηματισμών και της παραγωγής φερτών υλών στη λεκάνη απορροής του Εσωτερικού Μαλιακού Κόλπου
Authors: ΣΙΓΑΛΟΣ ΓΕΩΡΓΙΟΣ , ΑΛΕΞΟΥΛΗ-ΛΕΙΒΑΔΙΤΗ ΑΛΙΚΗ
Published: September 2018

The geomorphology and the lithology of an area is the basic factor that controls the erosional. Capability of the exogenic processes principally by the action of the water. In order to investigate the intensity and the erosion that can be seen in every area we followed the following methodology. We prepared a series of maps at scale 1:50.000. These maps helped us to work out and analyze the factors that affected the configuration of the relief. These maps are relative to the lithology of the formations, as well as their behavior under the affect of the exogenic processes in connection with he morphological slope. The maps that we prepared can be divided into three groups: A map providing information about the lithology and hydrogeology. In this map, two areas are distinguished according to the behavior and resistivity to erosion. Maps providing geomorphological data due to the shape and the evolution of the drainage networks of the area. In order to investigate the drainage texture, drainage density and drainage frequency maps were prepared. In each of these maps, three different areas of density and frequency values were distinguished. A combination of these maps leads to a final map of the drainage texture in which two different areas can be distinguished. A map of the slope of the valley sides. According to the gradient values of the slopes, two areas were distinguished. One area with gradient of less than 12% and one of more than 12%. The value of 12% was considered as a marginal value. The combination of the three final maps, of drainage texture, relief slopes and lithologie areas susceptible to erosion produced the erosivity map. According to erosivity three different categories of areas were distinguished. As the map shows the larger part of the area belongs to the category of low erosivity. Finally due to investigate the erosivity under present conditions we combined the erosivity map with the vegetation cover map. It is appreciated that the erosivity of the formations whish are covered of forests is significantly protected from erosivity and decreased than those of uncultivated areas
Συμβολή στη μελέτη των γεωττυραμιδικών σχηματισμών (γεωμυθότοπων) της κοιλάδας της Ποτάμιας των δυτικών Καμβουνίων (Τρανόβαλτου Σέρβιων Κοζάνης)
Authors: ΨΙΛΟΒΙΚΟΣ Α. , ΜΑΡΓΩΝΗ Σ. , ΜΟΥΜΟΥ Χ. , ΜΟΥΡΤΖΙΟΣ Π. , ΠΕΧΛΙΒΑΝΙΔΟΥ Σ. , ΤΣΙΛΙΟΣ Σ.
Published: September 2018

In recently dissected ravines of the river Potamia valley on the Mt. Kamvounia (Tranovalto village, Servia, Kozani) occur conical, or column, mushroom forms known in geomorphology as pyramids or earth pillars. Local people call them "Boucharia" meaning chimneys. The relief data reveal a two cycle development. During the first cycle the rocks on the Pliocene surface of the Mt. Kamvounia were eroded. The Pleistocene valleys thus produced gradually filled up with continental deposits mainly red beds. The climatic fluctuations towards the upper Pleistocene affected the weathered rocks of Kamvounia and produced episodic mudflows or debris flows. Various clastic material of the regolith transported during these episodic flows and deposited in the valleys as tongues of limited aerial extend. They consist of heterogenous, chaotic, graded (coarsening up) structures, carrying on their top large boulders of schist or gneiss. Younger red beds deposits covered and protected the episodic mudflow deposits. The investigated case of "Boucharia" consist of a tongue of mudflow deposits 2200 m long, 300 m wide and 2 - 1 1 m thick, on altitudes of 760 m to 670 m, covered with red beds. During the second cycle the Pleistocene regime of deposition was succeeded by the Holocene regime of erosion. The red beds and the enclosed mudflow deposits were eroded by surface flows and the new ravines were formed. The large boulders on the top surface of the mudflow deposits resisted to erosion and protected the underlain materials as cap rocks. In between the material was removed by erosion. So, under every large boulder an earth pillar or pyramid was formed, all along the area of a mudflow tongue. The still active erosional processes continue to remove material from the area, to weaken and gradually destroy the earth pillars all along the sides of the new ravines. The loose mudflow deposits are not able to resist erosion, so the cap rocks usually collapse and the earth pillars are destroyed.The geopyramids, or "Boucharia" in our case, are connected with local myths or superstitions. They can be developed as site views in geoparks for recreation, tourism and education as well.
Η συμβολή των γεωμορφολογικών χαρακτηριστικών του υδρογραφικού δικτύου του Μεγάλου Ρέματος Ραφήνας και οι ανθρωπογενείς παρεμβάσεις στην εκδήλωση πλημμύρων.
Authors: ΚΑΡΥΜΠΑΛΗΣ Ε. , ΓΑΚΗ-ΠΑΠΑΝΑΣΤΑΣΙΟΥ Κ. , ΜΑΡΟΥΚΙΑΝ Χ.
Published: September 2018

In this study an investigation is carried out of the physical - geomorphological parameters of Mégalo Rema drainage network, located in Rafina (east Attica) as well as human induced factors considered to be responsible for flood events in the broader area of the lower reaches of the river. For this purpose quantitative geomorphological characteristics of the Mégalo Rema drainage network were estimated and analyzed. Additionally, the human interference in the channels of the lower drainage network streams as well as the diachronic urban development within the Rafina drainage basin is determined. Among the most important geomorphological flood event causes are the hierarchical draining of stream orders, the high channel gradients in the upper reaches of the tributaries and especially that of Ag. Paraskevi, the burning of significant parts of the pine forests and the narrowing or complete artificial filling of some channels.
THE APPLICATION OF CYCLOSTRATIGRAPHY AND ASTROCHRONOLOGY IN THE NEOGENE MARINE DEPOSITS OF EASTERN MEDITERRANEAN: METOCHIA SECTION (GAVDOS ISLAND)
Authors: Antonarakou A. , Drinia H. , Pomoni-Papaioannou F.
Published: September 2018

Significant lithostratigraphical and micropaleontological signatures, of Milankovitchscale climatic changes are recorded in Miocene deep-sea sediments. As a case study, the Metochia Section, in Gavdos Island, which covers the time interval from 9.7 to 6.6 Ma, is used. This study emphasizes the sedimentological and micropaleontological characteristics of the section, attributed to Milankovitch-scale climatic changes. The short-term variations in climate and faunal composition are related to precession- controlled sedimentary cycles and the long-term trend in climate is related to eccentricity and obliquity cycles. Regional changes in sea surface temperature in combination with variations of solar insolation have caused the cyclical astronomical controlled pattern of Globorotalia species.
PLIOCENE MOLLUSCS TAXONOMIC DIVERSITY AS A TOOL FOR THE CLIMATIC-OCEANOGRAPHIC RECONSTRUCTION AND STRATIGRAPHY. TWO EXAMPLES FROM THE EASTERN MEDITERRANEAN
Authors: Koskeridou E.
Published: September 2018

Due to their high extinction rate, the Molluscs of the Pliocene in the Mediterranean, resulted potentially useful as a tool for climatic-oceanographic and chronological inferences. In the present study, we document the possibility of application of the model of Raffi and Monegatti (1993) in the region of Eastern Mediterranean, by studying two examples from the Hellenic area and Cyprus. This model concerns the extinction events of Molluscs of Pliocene, separating 4 different units of Molluscs with different climatic-oceanographic importance. It is documented that the two selected sections, Atsipades in central Crete and Athienou in southern Cyprus, give elements for the correlation of their deposits with this model. The Atsipades section is connected with the first significant extinction event, at the Mollusc Units of Raffi and Monegatti, resulting from the first important Pliocene cooling phenomenon of our hemisphere. The Athienou section is connected with the MPMU2 unit of Raffi and Monegatti, between the first and second distinctive extinction events of the Pliocene Molluscs.
ΠΕΡΑ ΑΠΟ ΤΟΥΣ ΓΥΡΕΟΚΟΚΚΟΥΣ: ΤΑ ΠΑΛΥΝΟΜΟΡΦΑ ΚΑΙ Η ΣΗΜΑΣΙΑ ΤΟΥΣ ΣΤΗΝ ΕΡΜΗΝΕΙΑ ΤΟΥ ΠΑΛΑΙΟΠΕΡΙΒΑΛΛΟΝΤΟΣ
Authors: Κούλη Κ. , Δερμιτζάκης Μ. Δ.
Published: September 2018

Non-pollen palynomorphs (ΝΡΡ) are organic-walled microfossils that are frequently discovered in palynological preparations during pollen analysis. Like pollen and spores they are resistant to corrosion and they survive the chemical preparation with heavy acids of pollen samples. NPP include a big variety of microfossils like fungal spores, algal spores and coenobia, animal remains and plant tissues. They provide an alternative source of paleoecological information especially for the Quaternary. A combined approach of pollen and NNP allows the better understanding of paleoecological changes. The study of occurrences of NNP from a series of Holocene deposits in Greece (Lake Kastoria, Skyros Island, Marathon coastal plain) was proved of great importance in the interpretation of paleoenvironmental conditions and the tracing of human activities in the past.
THE USE OF STATISTICAL ANALYSIS IN THE LITHOSTRATIGRAPHY OF SUBMARINE FAN DEPOSITS. AN EXAMPLE FROM SOUTHEAST GREECE (KARPATHOS ISLAND)
Authors: Pantopoulos G. , Konstantopoulos P. , Maravelis A. , Zelilidis A.
Published: September 2018

Examples of various types of statistical analysis of submarine fan bed thickness distributions that have been proposed in the past are reported, as well as an example of their application in Late Eocene-Oligocene submarine fan deposits of SE Greece (Karpathos Island). Generally, the sandstone bed thickness data measured in two outcrops of Karpathos submarine fans seems to follow power law (fractal) cumulative distributions. A deviation from the power law was observed as amalgamationprocedures become more frequent. These observations gave important information about Tertiary turbidite sedimentation in the area which probably was punctuated and had a single main sediment source. Information taken from statistical analysis of submarine fans bed thickness data has immediate applicability in hydrocarbon exploration because sandstones constitute ideal reservoirs.
Recent advances in understanding the complexities of metastasis
Authors: Chitty Jessica L. , Filipe Elysse C. , Lucas Morghan C. , Herrmann David , Cox Thomas R. , Timpson Paul
Published: September 2018

Tumour metastasis is a dynamic and systemic process. It is no longer seen as a tumour cell-autonomous program but as a multifaceted and complex series of events, which is influenced by the intrinsic cellular mutational burden of cancer cells and the numerous bidirectional interactions between malignant and non-malignant cells and fine-tuned by the various extrinsic cues of the extracellular matrix. In cancer biology, metastasis as a process is one of the most technically challenging aspects of cancer biology to study. As a result, new platforms and technologies are continually being developed to better understand this process. In this review, we discuss some of the recent advances in metastasis and how the information gleaned is re-shaping our understanding of metastatic dissemination.
Germination rates of four Chilean forest trees seeds: Quillaja saponaria, Prosopis chilensis, Vachellia caven, and Caesalpinia spinosa
Authors: Plaza Âlvaro , Castillo Miguel
Published: September 2018

Data on the germination rates of four tree species, natively founded in the Chilean Mediterranean-climate zone, were determined by germination in crop chambers. The obtained data were used to interpolate or extrapolate the time taken for 50% of seeds to germinate in each case. These results are useful for regional native forest research and, in a broad sense, for its use in models to study germination dynamics in Mediterranean-climate zones.
A practical approach to dealing with contagious ovine digital dermatitis (CODD) on farms
Authors: Angell Joe , Grove-White Dai , Duncan Jennifer
Published: September 2018

Contagious ovine digital dermatitis (CODD) is a cause of severe welfare compromise in affected sheep and can cause major problems on some farms. The specific aetiology is still unknown but Treponema spp. are considered as the most likely infectious agents necessary for disease. Recent evidence has shown strong links between footrot and CODD and a holistic approach to treatment and control is likely to be necessary in order to achieve control on affected farms. Together with this, strict biosecurity practices are required including the examination of all feet of all new entrants to a flock with the aim of preventing the introduction of CODD to unaffected flocks.
Triclabendazole-resistant liver fluke: issues and strategies
Authors: Patrick James , Anderson Fiona , Wilson Ken , McCormick Iain , Skuce Philip , O'Roarke John
Published: September 2018

Triclabendazole is the only flukicide currently available which is effective against young immature liver fluke. As such, it has become an integral part of many farms' control strategies for fasciolosis. Triclabendazole-resistant liver fluke were first reported in Australia in 1995 and are now found around the world, including in the UK. This development necessitates a change in the approach to liver fluke control on many farms if morbidity, mortality and lost production are to be avoided. This article discusses the issues raised by triclabendazole resistance and considers some of the possible strategies to prevent its import onto farms where it is not already present and how to prevent losses owing to fasciolosis when triclabendazole is no longer effective.
EquineReview
Authors: McGovern Kate
Published: September 2018

Introduction:

This edition of Equine Review considers papers on orally administered torsemide, idiopathic eosinophilic colitis, and surgical excision of melanocytic tumours.
COMPARACIÓN DE TÉCNICAS DE ANÁLISIS MULTIVARIADO MEDIANTE SIMULACIÓN PARA CARACTERIZACIÓN DE RECURSOS FITOGENÉTICOS EN FUNCIÓN DE CARACTERES SUSCEPTIBLES A INTERACCIÓN GENOTIPO-AMBIENTE
Authors: ZULIANI P. , DEFACIO R. , LAVALLE A. , BRAMARDI S.
Published: September 2018

Los Recursos Fitogenéticos se conservan ex situ en bancos de germoplasma. Para que los mismos sean utilizados por los mejoradores deben ser caracterizados y evaluados. En el banco de Germoplasma del INTA Pergamino se realiza la caracterización y evaluación de poblaciones locales de maíz, donde los datos obtenidos pueden presentarse como matrices de tres vías (poblaciones * variable * ambiente). A partir de datos empíricos de tres vías se generaron datos simulados, los cuales se utilizaron para comparar las técnicas de Análisis de Componentes Principales (ACP), Análisis Factorial Múltiple (AFM) y Análisis de Procrustes Generalizado (APG). La correlación entre las matrices de datos se cuantifi có con el coefi ciente RV de Escoufi er. Los resultados muestran una alta concordancia entre las confi guraciones encontradas con las tres estrategias de análisis. Se destaca el potencial que tienen AFM y el APG en el estudio de la interacción genotipo-ambiente multivariada. También se pudo comprobar que el coefi ciente RV de Escoufi er, puede ser usado como una sencilla herramienta para cuantifi car dicha interacción.
CURRENT INTERNATIONAL GUIDELINES FOR THE DIAGNOSIS AND TREATMENT OF JUVENILE-ONSET SYSTEMIC LUPUS ERYTHEMATOSUS
Authors: Kaleda M. I. , Nikishina I. P.
Published: September 2018

Systemic lupus erythematosus (SLE) with its onset in childhood or adolescence is a significant problem in the practice of pediatricians and rheumatologists due to diagnostic difficulties, clinical features, and the greater likelihood of unfavorable prognosis. About 20% of SLE patients fall ill at the age of 18 years. Only 13% of patients with juvenile-onset SLE have a drug-free remission in adulthood and have a lower quality of life than population controls. The paper discusses the latest international guidelines for the diagnosis, monitoring, and treatment of SLE in children and adolescents, which were published in 2017, with comments based on the data available in the literature and on practical experiences in managing these patients.
ACUTE ARTICULAR SYNDROME. THE CONCEPT OF EMERGENCY CARE IN RHEUMATOLOGY
Authors: Povzun A. S. , Mazurov V. I.
Published: September 2018

The absence of a current emergency care system for rheumatic patients makes the solution of this problem relevant. Objective: to create and test a health care system for patients with acute articular syndrome (AAS) and to analyze the distribution of patients according to the profile of hospitalization. Subjects and methods. The practice of providing medical care to patients with AAS was studied using the materials of the I.I. Dzhanelidze Research Institute of Emergency Care (RI of EC) in 2008 to 2015. The causes of hospital admissions were analyzed by taking into account the verified nosological diagnosis. Results and discussion. The incidence of AAS in the general flow of patients referred for hospitalization was analyzed; the most frequent causes of AAS were determined. Trends in the referral of rheumatic patients to inpatient and outpatient treatment were analyzed separately. The decrease in the proportion of rheumatic patients in need of inpatient treatment from 76.7 to 50.8% during the study allows optimization of the costs of the health care system. Conclusion. The presented concept of providing medical care to patients with AAS has proven its effectiveness as a result of its testing at the RI of EC from 2008 to the present time. This concept can be recommended for its introduction in other subjects of the Russian Federation.
EVALUATION OF THE EFFICACY AND TOLERABILITY OF LEFLUNOMIDE (ELAFRA) IN PATIENTS WITH RHEUMATOID ARTHRITIS ACCORDING TO THE DATA OF AN OPEN-LABEL MULTICENTER STUDY
Authors: Chichasova N. V.
Published: September 2018

In accordance with international and Russian guidelines for the management of patients with rheumatoid arthritis (RA), after its diagnosis, a synthetic disease-modifying antirheumatic drug is prescribed, among these drugs, methotrexate is anchor and, when the latter is impossible to use, leflunomide is commonly administered. Objective: to evaluate the efficacy and safety of a leflunomide generic (Elafra) during a multicenter follow-up. Subjects and methods. The investigation enrolled 347 patients aged over 18 years who met the 2010 ACR/EULAR criteria for RA, had its duration of less and more than 2 years, signed informed consent, and followed up in 29 centers of Russia. Elafra was prescribed at a saturating dose of 100 mg for the first 3 days, then 20 mg/day. There might be a temporary two-fold reduction in the dose when adverse events (AE) occurred. The patients were examined before and 4, 12 and 24 weeks after beginning leflunomide treatment. The treatment efficiency was evaluated with DAS28 and CDAI and by the physician global assessment. Results and discussion. The patients were divided into two groups: 1) 125 patients with RA of less than 2 years’ duration and 2) 222 patients with RA of more than 2 years’ duration. The mean age of patients in Group 1 was 48.7±12.9 years; that in Group 2 was 52.5±11.95 years; the mean disease duration was 11.9±7.8 and 90.99±54.28 months, respectively. During 24-week treatment, there was a highly significant decrease in all assessed clinical, laboratory parameters and indices of RA activity in both groups. At 4 weeks of treatment, the effect was observed in 91.8% of the patients in Group 1 and in 84.6% in Group 2, whereas at 12 weeks the effect was noted in almost all patients (99.1% and 96.9% in Groups 1 and 2, respectively). The highest rate of AE during Elafra therapy was recorded in the early periods: at 4 weeks, AE were noted in 6.5% of the patients in Group 1 and in 9.9% in Group 2, without needing to discontinue the drug. Treatment continuation decreased the rate of AE. Because of its intolerance, Elafra was discontinued due to in one case in Group 1 (diarrhea at 24 weeks of treatment) and in 6 cases in Group 2 (at 12 and 24 weeks of treatment). Conclusion. Treatment with leflunomide (Elafra) leads to the rapid development of its effect in early and late RA in most patients and is characterized by a good tolerability.
JOINT DAMAGE AFTER FROSTBITE (A CASE REPORT)
Authors: Erdes Sh. F. , Krasnenko S. O. , Urumova M. M.
Published: September 2018

The paper describes a case of a 36-year-old man with finger joint and bone damage that occurred a year and a half after severe frostbite.
PROGRESSIVE MULTIFOCAL LEUKOENCEPHALOPATHY AS A COMPLICATION OF RITUXIMAB THERAPY FOR RHEUMATOID ARTHRITIS (A CASE REPORT)
Authors: Bashkova I. B. , Madyanov I. V. , Shostak M. S. , Prokopyeva T. V.
Published: September 2018

When rheumatoid arthritis (RA) is treated with rituximab (RTM), there may be various adverse events, among which progressive multifocal leukoencephalopathy (PML) occupies a special place. The disease is caused by activation of opportunistic viral (JC-virus) infection in the presence of weakened cellular immunity, which leads to massive demyelination of brain structures. The paper describes a clinical case of using RTM in a female patient with RA with systemic manifestations. This treatment was effective during two years, but multifocal brain damage characteristic of PML developed after the last (fourth) cycle of infusions. Differential diagnosis with other diseases accompanied by similar brain changes allowed the authors to regard PML as the most likely diagnosis in this patient despite the negative result of determining JC virus DNA in blood and spinal fluid. The chosen therapy policy (a reduced dose of glucocorticoids, the use of a serotonin reuptake inhibitor, the antidepressant mirtazapine, and therapeutic plasmapheresis) with regard for presumed PML the patient has been proven to be effective and provided a modest positive trend.
THE CLINICAL MANIFESTATION OF HIV INFECTION SIMULATING RHEUMATIC DISEASES
Authors: Ponomareva E. Yu. , Shuldyakov A. A. , Anashchenko A. V. , Rebrov A. P.
Published: September 2018

The symptoms similar to those detected in rheumatic diseases in patients infected with human immunodeficiency virus (HIV) are due to various pathogenetic mechanisms (immune cell imbalance, antibody production, etc.). The occurrence of rheumatic symptoms and syndromes in HIV infection can lead to diagnostic errors and wrong treatment policy (use of immunosuppressive therapy instead of high-dose antiretroviral therapy). The paper describes two clinical cases of HIV infection in the stage of acquired immunodeficiency syndrome (AIDS) in young and middle-aged women, who were misdiagnosed rheumatic diseases at baseline. In the first case, a 34-year-old woman was suspected to have systemic lupus erythematosus before HIV infection diagnosis, whereas the leading clinical syndrome was nephropathy (nephrotic syndrome, hypertension). In the other case, in a 62-year-old woman, the manifestations of the advanced stage of HIV infection at baseline were regarded as mixed connective tissue disease, while the greatest similarity was found in the concurrence of Sjö gren’s syndrome. The paper discusses the reasons for diagnostic difficulties in each case and the specific features of organ damages in comparison with the data available in the literature.
Entomophagy in traditional healthcare practiced by indigenous communities: potential, implications and constraints
Authors: T. Gahukar Ruparao
Published: September 2018

Several insect species including termites, honey bees, American cockroach, grasshoppers, stink bugs, aquatic bugs, silkworms and mopane caterpillars are popularly consumed by indigenous and tribal communities in South America, sub-Saharan Africa, South-east Asia and the Pacific. Different life stages of the insects were found effective in therapeutic treatment against health disorders and life-threatening diseases. In entomophagy (process of insect eating), allergy, content of anti-nutrients, contamination of micro-organisms, chemicals and biochemical compounds, and parasitic infection are major constraints for wide adoption of entomophagy. An urgent attention of policymakers, peopleâ€™s organizations and researchers is therefore needed. This review is focused on worldwide utilization of selected edible insects for therapeutic treatment wherever modern medical facilities are not readily available or indigenous people prefer traditional healers. Certain practical safety measures against anticipated health risk are also elaborated.Â Â
Aprovechamiento de los tipos de pensamiento matemático en el aprendizaje de la programación funcional
Authors: Trejos Buriticá Omar Iván
Published: September 2018

Contexto: En el presente artículo se exponen y analizan los resultados de una investigación realizada en el aula, en el contexto del aprendizaje de la programación funcional a nivel universitario en Ingeniería de Sistemas y Computación, a partir de la aplicación de los tipos de pensamiento matemático y de su uso en el lenguaje de programación DrRacket. El propósito fue establecer nexos entre los tipos de pensamiento matemático y la programación de computadores (para los estudiantes de primer semestre).Metodología: Para el desarrollo de esta investigación se trabajó con un grupo de estudiantes de primer, aplicando la metodología propuesta. Las evaluaciones, basadas en los tipos de pensamiento matemático, se hicieron en otro grupo que estaba recibiendo la asignatura por los métodos convencionales. En este solamente se adelantaron las pruebas evaluativas; no se hizo ningún monitoreo al respecto de su aprendizaje.Resultados: Los resultados muestran grandes ventajas cuando se articulan matemáticas y programación dentro del contexto de una asignatura que les confiere sentido a ambas áreas.Conclusiones: Se concluye que la programación funcional se aprende de una manera más fácil cuando se relaciona con los tipos de pensamiento matemático y viceversa.
Adsorción de rojo 40 sobre cascarilla de arroz: determinación del equilibrio, cinética y termodinámica
Authors: Amaringo Villa Fredy Alberto , Hormaza Anaguano Angelina Del Socorro
Published: September 2018

Contexto: Los residuos agrícolas se han convertido en adsorbentes no convencionales de gran interés debido a su amplia disponibilidad, mínimo costo y alta eficiencia. En este trabajo se evaluó la capacidad adsorbente del subproducto cascarilla de arroz (CA) en la remoción del colorante aniónico rojo 40 (R40), bajo un sistema discontinuo.Método: Para determinar las mejores condiciones de remoción de este colorante, se implementó un diseño factorial 23, que permite alcanzar una remoción del 75,6 % a pH=2,0, concentración inicial de 15 mg/L, dosificación de 8,0 g/L y tiempo de contacto de 18 horas.Resultados: Se evaluó el equilibrio del proceso y se encontró que el modelo Langmuir es el que mejor representa los resultados experimentales con qmáx de 2,74 mg/g y un coeficiente de ajuste de R2 = 0,987. En cuanto a la cinética, el modelo de pseudosegundo orden con qt de 1,09 mg/g presentó el mejor ajuste (R2 = 0.970). Con respecto a las propiedades termodinámicas, la energía libre de Gibbs (con ΔG = -1,11 kJ/mol) y la entropía (con ΔS = 23,9 J/mol*K), señalan un proceso espontáneo, en tanto que la entalpía mostró que la remoción de R40 constituye un proceso endotérmico, con un de ΔH = 6,71 kJ/mol. Adicionalmente, la energía de activación con valor de 14,1 kJ/mol sugiere que el mecanismo de adsorción del R40 transcurre a través de una fisi-adsorción.Conclusiones: Estos resultados señalan que la cascarilla de arroz ofrece una adecuada capacidad adsorbente para la retención de colorantes azo de efluentes contaminados y que el escalado de dicho proceso es factible dadas sus características termodinámicas.
Programy heraldyczne w dekoracji kościołów parafialnych w Kraśniku i Chodlu
Authors: Soćko Adam
Published: September 2018

The essay is an analysis of coats of arms, mainly from the second quarter ofthe 16th  century, connected with the architecture and decoration of thechurch of the Regular Canons in Kraśnik and the parish church in Chodel. The identification of numerous coats of arms used to decorate the keystones,supports, portals, balustrades, and facades of the Kraśnik church confirms two stages of its construction by two branches of the Tęczyński family (coat of arms Topór ) in the 15th  and 16th  centuries. The identification of the coatsof arms painted on the chancel vault of the church in Chodel determines thedating of its decorations and commemorates the town’s proprietors –  theMaciejowski family and their family connections in the second quarter of the16th  century. The identification of the coats of arms makes it possible to proposeprecise dating of the construction of both churches.
Images, Media and Idols (An Explanation of Stefan Papčo's Work "Citizens"
Authors: Gerát Ivan , Zervan Marian
Published: September 2018

Analiza prac młodego słowackiego artysty Štefana Papčo Obywatele pokazuje, jakie są możliwości interpretacji współczesnej rzeźby. Materialnie dzieło tworzą prace wykonane głównie z drewna. Są one jednak wpisane w dokonujący się w czasie proces, w którym istotne są relacje i interakcje dokonujące się zarówno wobec różnych składowych dzieła, jak i wobec użytych przy ich realizacji środków. Nie bez znaczenia sa też historyczne asocjacje. Rzeźbione drewniane rzeźby artysta ustawił w różnych trudno dostępnych miejscach w górach. Już sam proces ich przenoszenia i ustawiania nasycony jest znaczeniami. Następnie rzeźby pozostawione w górach oddane zostały  destrukcyjnemu działaniu sił przyrody; w ten sposób natura stała się współautorką nowego dzieła. Ta destrukcyjna interakcja dziejąca się za sprawą sił przyrody, która może być odczytywana jako współczesna forma obrazoburczej krytyki wymierzonej w dzieła, była utrwalana, dokumentowana z użyciem mediów cyfrowych i transmitowana na żywo przez Internet do galerii. Obrazy rzeźb i zachodzącej przemiany wyświetlano na jej ścianach. W ten sposób powstała wirtualna galeria rzeźb. Jednak w tej formie prezentacji zanika istota relacji obecnej w środowisku naturalnym. Cyfrowa transmisja dokumentująca zachodzący w różnych miejscach proces przemiany dzieł przetwarza prawdziwe rzeźby w dwuwymiarowe obrazy. Opisany tu proces spłaszczania, trywializacji nabiera znaczenia, jeśli zrozumiały jest historyczny kontekst asocjacji, do którego odwołują się Obywatele. Rzeźby przedstawiają grupę wspinaczy górskich, dla których przebywanie w górach i związany z tym styl życia były protestem wobec totalitarnego reżimu w komunistycznej Czechosłowacji. Pozostawienie w górach oddanych w pacht naturze drewnianych figur, choć wyzwala stopniowo różne możliwości interpretowania, prowadzi do ich całkowitej materialnej destrukcji. Dzieło Papča Obywatele staje się tym samym anty-pomnikiem i jako takie otwiera cały zespół zagadnień odnoszących się do pamięci, rozpadu wartości obywatelskich w zmanipulowanym i kontrolowanym przez media społeczeństwie.
Malarstwo materii w Polsce. Na marginesach odwilżowej "nowoczesności"
Authors: Jankowska-Andrzejewska Maria
Published: September 2018

The painting of the matter was an important component of Polish art of the “thaw” period and the 1960s. So far Polish art historians have usually interpreted works made of non-traditional substances by Polish artists as examples of inspiration by Western art and a tendency to abandon the painting as such. Scholars and critics stressed the relief qualities of art objects and their impact on the spectator through the surface texture and the properties of the material used, often incorporated into a picture directly from reality and provoking specific associations. Such an approach did justice only to some such works, e.g., those painted with paints mixed with nonpainterly substances, with the mud effects of the palette, characteristic of French art (Aleksander Kobzdej, Jan Lebenstein), or abandoning traditional materials to challenge the painting as such (Jan Ziemski, Włodzimierz Borowski, Jerzy Rosołowicz). Thus far the reflection on the painting of the matter seems inadequate to the works in which paint was eliminated in favor of other materials and substances combined with painterly activities. Those unspecific substances and materials were often distributed on flat surfaces and composed in terms of basic division of the pictorial field, its main axes, relations to the edges, etc. Such “paintings made of matter” are interesting examples of the “thaw” art, which have not been interpreted as paintings, escaping chronological and other criteria of art history. Ambiguously called the “painting of the matter,” they occupied the margins of the critical discourse. The inadequacy of the terms adopted to describe them resulted in ignoring many works, while others have been included in the history of Polish art only in some aspects.  So far no one has addressed the basic question of different artistic responses to the problem of searching for the limits of the painting, and related attempts to enhance the painterly idiom which was at the same time disrupted in a number of ways. The author analyzes works selected from the set of about three hundred items found in thirteen Polish museums. Regardless of the individual differences, the paintings by Jadwiga Maziarska, Bronisław Kierzkowski, Adam Marczyński, Teresa Rudowicz, and Krystyn Zieliński exemplify the combination of non-traditional substances and surface composition. Paradoxically, the decision to abandon paint did not make those artists deny the superior role of the surface, which resulted in the creation of works oscillating among painting, relief, and sculpture, close to collages or assemblages, yet quite specific. Their works either exploited the conditions offered by the framed flat surface or brought into play new, autonomous surfaces.
Taking omid to the clouds
Authors: Shacham Ohad , Gottesman Yonatan , Bergman Aran , Bortnikov Edward , Hillel Eshcar , Keidar Idit
Published: September 2018

We describe how we evolve Omid, a transaction processing system for Apache HBase, to power Apache Phoenix, a cloud-grade real-time SQL analytics engine.

Omid was originally designed for data processing pipelines at Yahoo, which are, by and large, throughput-oriented monolithic NoSQL applications. Providing a platform to support converged real-time transaction processing and analytics applications - dubbed
translytics
- introduces new functional and performance requirements. For example, SQL support is key for developer productivity, multi-tenancy is essential for cloud deployment, and latency is cardinal for just-in-time data ingestion and analytics insights.

We discuss our efforts to adapt Omid to these new domains, as part of the process of integrating it into Phoenix as the transaction processing backend. A central piece of our work is latency reduction in Omid's protocol, which also improves scalability. Under light load, the new protocol's latency is 4x to 5x smaller than the legacy Omid's, whereas under increased loads it is an order of magnitude faster. We further describe a
fast path
protocol for single-key transactions, which enables processing them almost as fast as native HBase operations.
PolarFS
Authors: Cao Wei , Liu Zhenjun , Wang Peng , Chen Sen , Zhu Caifeng , Zheng Song , Wang Yuhui , Ma Guoqing
Published: September 2018

PolarFS is a distributed file system with ultra-low latency and high availability, designed for the POLARDB database service, which is now available on the Alibaba Cloud. PolarFS utilizes a lightweight network stack and I/O stack in user-space, taking full advantage of the emerging techniques like RDMA, NVMe, and SPDK. In this way, the end-to-end latency of PolarFS has been reduced drastically and our experiments show that the write latency of PolarFS is quite close to that of local file system on SSD. To keep replica consistency while maximizing I/O throughput for PolarFS, we develop
ParallelRaft
, a consensus protocol derived from Raft, which breaks Raft's strict serialization by exploiting the out-of-order I/O completion tolerance capability of databases. ParallelRaft inherits the understand-ability and easy implementation of Raft while providing much better I/O scalability for PolarFS. We also describe the shared storage architecture of PolarFS, which gives a strong support for POLARDB.
Database and distributed computing fundamentals for scalable, fault-tolerant, and consistent maintenance of blockchains
Authors: Maiyya Sujaya , Zakhary Victor , Agrawal Divyakant , Abbadi Amr El
Published: September 2018

Bitcoin is a successful and interesting example of a global scale peer-to-peer cryptocurrency that integrates many techniques and protocols from cryptography, distributed systems, and databases. The main underlying data structure is blockchain, a scalable fully replicated structure that is shared among all participants and guarantees a consistent view of all user transactions by all participants in the cryptocurrency system. In this tutorial, we discuss the basic protocols used in blockchain, and elaborate on its main advantages and limitations. To overcome these limitations, we provide the necessary distributed systems background in managing large scale fully replicated ledgers, using Byzantine Agreement protocols to solve the consensus problem. Finally, we expound on some of the most recent proposals to design scalable and efficient blockchains. The focus of the tutorial is on the distributed systems and database technical aspects of the recent innovations in blockchains.
Forecasting big time series
Authors: Faloutsos Christos , Gasthaus Jan , Januschowski Tim , Wang Yuyang
Published: September 2018

Time series forecasting is a key ingredient in the automation and optimization of business processes: in retail, deciding which products to order and where to store them depends on the forecasts of future demand in different regions; in cloud computing, the estimated future usage of services and infrastructure components guides capacity planning; and workforce scheduling in warehouses, call centers, factories requires forecasts of the future workload. Recent years have witnessed a paradigm shift in forecasting techniques and applications, from computer-assisted model- and assumption-based to data-driven and fully-automated. This shift can be attributed to the availability of large, rich, and diverse time series data sources, posing unprecedented challenges to traditional time series forecasting methods. As such, how can we build statistical models to efficiently and effectively learn to forecast from large and diverse data sources? How can we leverage the statistical power of "similar" time series to improve forecasts in the case of limited observations? What are the implications for building forecasting systems that can handle large data volumes?

The objective of this tutorial is to provide a concise and intuitive overview of the most important methods and tools available for solving large-scale forecasting problems. We review the state of the art in three related fields: (1) classical modeling of time series, (2) scalable tensor methods, and (3) deep learning for forecasting. Further, we share lessons learned from building scalable forecasting systems. While our focus is on providing an intuitive overview of the methods and practical issues, we also present technical details underlying these powerful tools.
Shapesearch
Authors: Siddiqui Tarique , Luh Paul , Wang Zesheng , Karahalios Karrie , Parameswaran Aditya
Published: September 2018

Finding visualizations with desired patterns is a common goal during data exploration. However, due to the limited expressiveness and flexibility of existing visual analytics systems, pattern-based querying of visualizations has largely been a manual process. We demonstrate ShapeSearch, a system that enables users to express their desired patterns in trend lines using multiple flexible mechanisms --- including natural language and visual regular expressions, and automates the search via an optimized execution engine. Internally, the system leverages an expressive
shape query algebra
that supports a range of operators and primitives for representing ShapeSearch queries. In our demonstration, conference attendees will learn how the various components of ShapeSearch help accelerate scientific discovery by automating the search for meaningful patterns in trend lines in domains such as genomics and material science.
A demonstration of MAGiQ
Authors: Jamour Fuad , Abdelaziz Ibrahim , Kalnis Panos
Published: September 2018

Existing RDF engines follow one of two design paradigms: relational or graph-based. Such engines are typically designed for specific hardware architectures, mainly CPUs, and are not easily portable to new architectures. Porting an existing engine to a different architecture (e.g., many-core architectures) entails almost redesign from scratch. We explore sparse matrix algebra as a third paradigm for designing a portable, scalable, and efficient RDF engine. We demonstrate MAGiQ; a matrix algebra approach for evaluating complex SPARQL queries over large RDF datasets. MAGiQ represents an RDF graph as a sparse matrix, and translates SPARQL queries to matrix algebra programs. MAGiQ takes advantage of the existing rich software infrastructure for processing sparse matrices, optimized for many architectures (e.g., CPUs, GPUs, distributed), effortlessly. This demo motivates the adoption of matrix algebra in RDF graph processing by showing MAGiQ's performance with different matrix algebra backend engines. MAGiQ, using a GPU, is orders of magnitude faster in solving complex queries on a billion edge graph than state-of-the-art RDF systems.
Koko
Authors: Wang Xiaolan , Komiya Jiyu , Suhara Yoshihiko , Feng Aaron , Golshan Behzad , Halevy Alon , Tan Wang-Chiew
Published: September 2018

K
oko
is a declarative information extraction system that incorporates advances in natural language processing techniques in its extraction language. K
oko
's extraction language supports simultaneous specification of conditions over the surface syntax and on the structure of the dependency parse tree of sentences, thereby allowing for more refined extractions. Furthermore, the K
oko
extraction language allows for aggregating evidence from an input document and supports conditions that are tolerant of linguistic variation of expressing concepts.

In this demo, we outline the design of K
oko
, a system for extracting information and understanding the results of the extraction. K
oko
provides an interactive interface that allows participants to write queries, understand the input and results of the queries. In particular, the user can customize the input text, visualize the input text's dependency parse trees, and understand the correspondences between query components, dependency tree nodes, text tokens, and the computation and associated scores that led to an extraction.
Dhalion in action
Authors: Agrawal Ashvin , Floratou Avrilia
Published: September 2018

In a world where organizations are being inundated with data from various sources, analyzing data and gaining actionable insights in real-time has become a key service differentiator. Over the last few years, several stream processing frameworks have been developed to address the need for large-scale, real-time analytics. A crucial challenge in these environments is the complexity of configuring, managing and deploying long-running streaming applications. Operators must carefully tune these systems to balance competing objectives such as resource utilization and performance. At the same time, they must also account for external shocks such as unexpected load variations and service degradations.

In this demonstration, we show how operators can maintain healthy streaming applications without manual intervention while still meeting their performance objectives. We use Dhalion, an open-source library that sits on top of the streaming application, observes its behavior and automatically takes actions to keep the application in a healthy state. In particular, through various Dhalion policies that are configured by the attendees, we demonstrate how a streaming application can meet its performance objective by automatically configuring the amount of resources needed at the various application stages. We also demonstrate Dhalion's modularity and extensibility that greatly simplifies the process of developing new policies which address different application requirements.
Ease.ml in action
Authors: Karlaš Bojan , Liu Ji , Wu Wentao , Zhang Ce
Published: September 2018

We demonstrate ease.ml, a multi-tenant machine learning service we host at ETH Zurich for various research groups. Unlike existing machine learning services, ease.ml presents a novel architecture that supports multi-tenant, cost-aware model selection that optimizes for minimizing total regrets of all users. Moreover, it provides a novel user interface that enables
declarative
machine learning at a higher level: Users only need to specify the input/output schemata of their learning tasks and ease.ml can handle the rest. In this demonstration, we present the design principles of ease.ml, highlight the implementation of its key components, and showcase how ease.ml can help ease machine learning tasks that often perplex even experienced users.
MustaCHE
Authors: Neto Antonio Cavalcante Araujo , Nascimento Mario A. , Sander Joerg , Campello Ricardo J. G. B.
Published: September 2018

In this demonstration paper we introduce MustaCHE (
Multiple Clustering Hierarchies Explorer
), a tool that allows analysis and exploration of multiple clustering hierarchies in an interactive and visual manner. A known issue in the context of density-based clustering is how to set parameters. Typically one has to resort to trial-and-error, and its potential pitfalls, which may possibly include not finding existing clusters at all. In a previous work we have devised a very efficient technique to generate clustering hierarchies using HDBSCAN*
w.r.t
. a range of its clustering parameter,
mpts
. However, finding the "best"
mpts
value is still an open problem. In order to mitigate this issue we developed MustaCHE, a tool that allows a user to visualize several different density-based cluster hierarchies of a dataset
w.r.t
. a large range of
mpts
values. The user can then explore hierarchies individually and, at the same time, see how they compare to the other hierarchies. The simultaneous visualization of multiple clustering hierarchies provided by MustaCHE makes it feasible (and easy) for a user to gain a deeper understanding of the data and how its cluster structures behave under different parameter settings.
Learning efficiently over heterogeneous databases
Authors: Picado Jose , Termehchy Arash , Pathak Sudhanshu
Published: September 2018

Given a relational database and training examples for a target relation, relational learning algorithms learn a Datalog program that defines the target relation in terms of the existing relations in the database. We demonstrate CastorX, a relational learning system that performs relational learning over heterogeneous databases. The user specifies matching attributes between (heterogeneous) databases through matching dependencies. Because the content in these attributes may not match exactly, CastorX uses similarity operators to find matching values in these attributes. As the learning process may become expensive, CastorX implements sampling techniques that allow it to learn efficiently and output accurate definitions.