bluuebunny/crossref_metadata_2025 huggingface dataset:
SLAVIC «COOK ROOMS» FROM THE SETTLEMENT ROVANTSI — HNIDAVSKA HIRKA IN VOLYN
Authors: Bardetskyi A. B.
Published: July 2020

In 2009 during the excavations at the multi-layered settlement of Rovantsi — Hnidavska Hirka near Lutsk in the excavation area 10 the dwellings and household buildings of the Slavic period have been discovered. To the horizon of the tenth century three houses and the building with three earth ovens were attributed. The stratigraphy of the filling of this building (object 3) indicates that the earth ovens were not operating at the same time. Three successive horizons are observed in this structure. The first site was a grain pit which was discovered at the bottom of the building. This pit was covered by two rammed floors, sagged into it. The analysis of ceramics made it possible to connect one house (object 18) with the first horizon of object 3 and the other house (object 16) with the third horizon of object 3. In the ovens of these houses there were fragments of pots, glued to the fragments of pots from the corresponding horizons of object 3. This building is interpreted as the room for cooking. The horizon of the 12th — the first half of the 13th century includes the structure with two clay ovens, pit-cellar, small rectangular building and the ditch that surrounded these objects. This ditch was obviously the part of fence, and the gap in it was the pass. The complex of this ditch also includes two ground fires, located in the pass in one line with the ditch. It has been suggested that the building with large clay oven which was discovered in 2010 in a nearby excavation 12 (object 12 / Ex. 12), is the same cook room. Obviously, it reflects certain stage in development of such buildings, namely the stop of the use of fast-destroying earth ovens and the transition to the construction of large clay ovens. This is evidenced by the following facts: this building is different in shape from all other houses of the 10th century; it is located at the site of the previous building with earth oven; the oven in it had too large sizes relative to other ovens from the houses of the 10th century. The results of the excavations at Hnidavka Hirka help to reject the version that such structures were the manufactories and to consider them not «mini-factories-bakeries» but only the kitchens with one oven in each individual farm.
WOODWORKING IN THE NORTHERN BUKOVYNA DURING 12th — EARLY 13th CENTURIES
Authors: Vozny I. P.
Published: July 2020

The article deals with the development of woodworking industry in the medieval settlements of Northern Bukovyna which for a long time remained poor studied. During the Middle Ages this territory was covered with significant forest areas, in which there were 22 local breeds of both industrial and rare trees. Accordingly, the woodworking industry here, as well as throughout the territory of Old Rus, had many branches. Being well acquainted with the technical properties of wood the local masters widely used this knowledge depending on the physical and mechanical properties of the breed. Constructing fortifications they used mainly oak and beech, for residential and commercial buildings they used pine and fir. Hardwood (maple, ash) was spread in manufacturing of dishes, while spoons were made from the yarrow, juniper. The remains of precise or carved wooden dishes were discovered in the settlements of Northern Bukovyna. Beech and oak were used in the craft. Containers were made from lime to store loose materials. Local carpenters were aware of various ways of connecting individual wooden elements to each other in a particular product or construction. When erecting dwellings or household structures in corners, the main method was to connect the locks, and when connected horizontally, direct, overhead, spit joints were widely used. At the archaeological sites of Northern Bukovyna, as the open settlements were almost not explored, considerable woodworking toolkit was discovered. It is represented as forms and fragments of blades, ax, bits, drill bits, knives, nail, etc. Their typology has wide analogies among archeological materials from other territories of the Old Rus state and is fully integrated into the generally accepted typology. Thus, materials that characterize the woodworking industry of Northern Bukovyna completely allow trace the evolution of the woodworking business, which developed in terms of economic development of Old Rus.
THE TORQUES OF «TOTTENKRONE» TYPE FROM THE NATIONAL MUSEUM OF HISTORY OF UKRAINE
Authors: Osypenko М. S. , Hrytsyk Yu. O.
Published: July 2020

Three years ago Ukrainian researchers from the Institute of Archaeology of the National Academy of Science have discovered and began to excavate new Balths necropolis Ostriv 1 in Kyiv region. This medieval burial ground extremely actualized in the Ukrainian scientific and public space the case on the presence of the Baltic migrants and their influence to ethnic and political processes in this region in Old Rus period. Accordingly to this fact, it requires look more carefully to the sources base of the Baltic antiquities in the territory of Ros river basin. In the storage of the National Museum of History of Ukraine two whole items, the half of third and six constituent elements of the torques of «Tottenkrone» type are kept. All items are made of three twisted bronze wires but differ in the number of spiral turns, the design of the clasps and the bead-couplings. The finds originate from outskirts of Kaniv and Trostjanets (?), the manor of Ponjatovskiy in Tahancha (?), Knjazha hora and are also of unknown locations. The tradition of wearing of torques is inherent in women’s costume of Baltic region. Adornments having several turns twisted from two or three wires have been found in cremation and inhumation burials on the lands of ethnic groups of Prussians, Curonians, Semigallins, Scalvians, etc. and beyond these areas the finds are few. The components of torques of «Tottenkrone» type from the museum collection (the end of the clasps, bead-couplings) are similar to the findings from the tombs of Vampenian 2 (burial 57, XI century) and Ostriv 1 (first half of XI century), and consiquently they ought to be dated according to the material assemblages of these burial grounds. Obviously, these feminine ornaments were ritual and most likely worn twice in woman lifetime: on her wedding day and at funerals procession. The torques of «Tottenkrone» type came to other territories, outside the Baltic areas, only with the bearers of traditions of a particular ethnic region, or perhaps as a military prey.
ABOUT THE COINS WITH LITHUANIAN COUNTERMARKS «COLUMNS»
Authors: Kozubovskyi G. A.
Published: July 2020

This paper considers the problem of Golden Horde and Tatar-Genoese coins with Lithuanian countermarks «Columns». These coins occurred in several hoards, mainly in Eastern Podillia and Southern Kyiv lands. The finds of these coins are dated to the 15th century. The exact date of beginning of countermarking is unknown. However, they did not appear there earlier than in 1420s, during the reign of Vytautas as the Grand Duke of Lithuania (1392—1430). In Ukrainian finds the Golden Horde coins with Lithuanian countermarks «Columns» are occurred together with Prague groats of Wenceslaus (1378—1419). Probably, Golden Horde coins continued to be countermarked in Eastern Podillia and Southern Kyiv lands after the death of Vytautas in 1430. But, in the 14th — first part of the 15th century, the sign usually called «Kolumny» (or «Gedyminas Columns») was connected with Grand Duke of Lithuania Kiejstut (1345—1382) and his sons, especially Grand Duke Vytautas. The sign was well known of the steppe peoples of Ukraine as a «tamga». Polish chronicler Jan Długosz testifies it’s use by the Grand Duke of Lithuania Vytautas to brand his horses in 1410. In my opinion, Grand Duke of Lithuania Vytautas has begun re-struck the «Columns» (the «tamga of Vytautas») in the 1420s because of appearance of the low-grade Golden Horde coins with the content of silver 300–600/1000 grades. Numerous groups of silver with different pyrity were used in the circulation of Ukrainian lands as well as silver coins with defferent alloys quality (800—900/1000) of Toqtamish (1380—1399), Shadibek (1399—1407), Pulad (1407—1410) and other Khans of 1410—1420s.
Effective organization of economic space in the Arctic zone of the Russian Federation: Strategy and practice
Authors: Artamonov V , Lukin V , Musienko T
Published: July 2020

The initial stage of implementation of modern innovative approach identified in strategic documents and in the formulation of new mechanism of development of territories on the basis of investment areas, taking into account characteristics, specialization of subjects of the Russian Federation on the principles and mechanisms of market economy is revealed.
Innovación y competitividad de los clusters de Paraguay: evidencia de las limitaciones
Authors: Sánchez-Báez Edgar Antonio , Avancini-Schenatto Fernando José
Published: July 2020

This article aims to analyze the competitive position of business clusters in Paraguay, identifying its main limitations. Formalized business clusters from seven sectors, geographically distributed in different parts of the country, were the object of this research. First, a comparative research in a regional level was carried out and, in a second stage, a multicase research of different clusters in the country, focused mainly on factors associated with competitiveness. The results show that the level of implementation in the seven sectors falls within the category "survival cluster of small and medium enterprises" and they present common weaknesses such as limited capacity for innovation, low level of specialization, integration and cooperation, which directly influence the competitiveness of SMEs grouped under this business model. The uncomfortable position on the board of regional competitiveness imposes the need for a refoundation of the Paraguayan business clusters.
Implementación de la "Logística del Embalaje Sostenible". Un análisis en detergentes líquidos
Authors: García-Arca Jesús , González-Portela Garrido Trinidad , Prado-Prado J. Carlos
Published: July 2020

This paper presents the interest of implementing the “Sustainable Packaging Logistics” approach in order to improve efficiency and sustainability throughout the supply chain, thanks to the development of a study based on “Benchmarking” technique. After summarizing the main conceptual aspects of “Sustainable Packaging Logistics”, the paper focuses on the analysis of a sample of 17 references of liquid detergent, adopting the methodology of multi-case study. The results of the study show an average level of unoccupied volume of 12.5% in the comparison between the liquid and the plastic bottle capacity. This unoccupied rate even reaches the 50.8% if it compares the liquid volume and the theoretical prism that fits the bottle. On the other hand, the results also show differences in the pallet efficiency up to 377 liters per pallet and 3,248 liters per truck. These results imply that there are different logistic and sustainable effects depending on the packaging solution; that means new opportunities for competitiveness improvement.
Metodología para la Selección de Mercados Internacionales: Un Análisis de Caso para la Exportación de Bebidas Carbonatadas
Authors: Baena Rojas Jose Jaime , Rojas Jose Alejandro , Campo Emiro Antonio
Published: July 2020

El propósito de este artículo es ofrecer una metodología cuantitativa para la selección de mercados para pequeñas y medianas empresas (PYMES), de fácil implementación y comprensión que pondera factores de costo, logística, barreras comerciales, y cultura. En dicha metodología se analizan variables que determinan de un modo objetivo la selección de un mercado para la exportación de mercancías. Para validar la metodología propuesta, se estudia la selección de mercados internacionales para bebidas carbonatadas desde Colombia, concluyendo que el Reino Unido es el mercado más apropiado de acuerdo a las ponderaciones asignadas a las variables y factores.
How to negotiate with dominant suppliers? A game-theory perspective from the industry
Authors: Mediavilla Miguel , Mendibil Kepa , Rivera Olga
Published: July 2020

La negociación con proveedores dominantes suelen conducir a situaciones de dependencia, donde el comprador se ve forzado a aceptar las condiciones dadas. Esto, que es común en la práctica industrial, requiere de nuevos enfoques que ayuden a maximizar la competencia. Específicamente, este artículo utiliza conceptos de la teoría de juegos en una selección de proveedores dentro del sector de la ingeniería de grúas de puertos marítimos. Nuestra investigación muestra que la literatura existente en la teoría de juegos aplicada a estos ámbitos es mayormente descriptiva, centrada en subastas y limitada en el diseño, aplicación e impacto en casos reales. Por ello, se presenta uno de los primeros casos de estudio que aplica los árboles del juego y la inducción hacia atrás (herramientas de la teoría de juegos) para el diseño y ejecución de una negociación real, incluyendo el cómo y porqué de las decisiones. Los resultados muestran que aplicar teoría de juegos incrementa las posibilidades de tener mejores resultados en negociaciones, al predecir los resultados y prescribir qué juego se debería diseñar para incrementar la competencia entre proveedores.Palabras clave: Compras; Teoría de juegos; negociación; selección de proveedores
Impacto de la Perspectiva de Género en la Resiliencia de la Cadena de Suministro
Authors: Cuenca Llanos , Esteso Ana , Navarro-Astor Elena
Published: July 2020

Para mejorar la igualdad de género, reducir daños de reputación en las organizaciones y mejorar su resiliencia, es necesario analizar su situación real y participar en un diálogo constructivo. Sin embargo, a menudo éstas carecen de la formación necesaria para implementar políticas exitosas con ese fin. Este artículo trata de cubrir dicho vacío proponiendo una herramienta para evaluar la inclusión de género actual en las CS. Se evalúan tres objetivos: 1) garantizar negocios con organizaciones que respeten la igualdad de género, 2) promover el emprendimiento femenino y 3) divulgar políticas de igualdad de género a lo largo de la CS.
SISTEM PENDUKUNG KEPUTUSAN PENILAIAN KINERJA GURU PADA SMA NEGERI 1 LONG IKIS MENGGUNAKAN METODE PREFERENCE RANKING ORGANIZATION METHOD FOR ENRICHMENT EVALUATION (PROMETHEE)
Authors: Azahari Azahari , Ukkas Irwan , Ar Rahman Nurbalingga Suhendra
Published: July 2020

Penilaian kinerja guru adalah penilaian yang dilakukan pada setiap item tugas utama guru dalam konteks pengembangan karir, pangkat, dan posisi. Implementasi tugas utama guru tidak lepas dari kemampuan seorang guru dalam menguasai dan menerapkan kompetensinya. guru sebagaimana diamanatkan oleh Peraturan Menteri Pendidikan Nasional Nomor 16 Tahun 2007 tentang Standar Kualifikasi Akademik dan Kompetensi Guru. PROMETHEE adalah penggunaan nilai-nilai dalam hubungan peringkat luar. Dalam metode ini, semua parameter yang dinyatakan memiliki pengaruh sesuai dengan prospek ekonomi. Metode PROMETHEE menggunakan kriteria dan nilai masing-masing. Sistem Pendukung Keputusan dengan menggunakan metode PROMETHEE diharapkan dapat membantu sekolah dalam menilai kinerja guru, sehingga tingkat kinerja guru dapat mempengaruhi kualitas sekolah sambil berguna untuk pengembangan guru secara optimal diperlukan untuk memajukan kualitas pendidikan.
CONFUSION IN THE POND: NEW ITEM ON THE MENU FOR THE NAIVE GRASS SNAKE (NATRIX NATRIX LINNAEUS) VERSUS AN UNEXPECTED GREAT RAMSHORN (PLANORBARIUS CORNEUS LINNAEUS)
Authors: Zimić Adnan , Klisura Tajna
Published: July 2020

This article reports a case of a sub-adult of the naive Grass snake (Natrix natrix) trying to ingest the Great ramshorn (Planorbarius corneus) in a small artificial pond in Bosnia and Herzegovina.
A NEW SPECIES OF THE GENUS MALACONOTHRUS (ACARI, ORIBATIDA, MALACONOTHRIDAE) FROM ECUADOR
Authors: Ermilov Sergey G.
Published: July 2020

A new species of oribatid mites of the genus Malaconothrus (Oribatida, Malaconothridae) is described from forest litter in Ecuador. Malaconothrus paraweigmanni Ermilov sp. nov. differs from the most similar species, M. weigmanni Colloff, 2013 by the smaller body size, barbed notogastral setae and comparatively long anal setae.
A DIDÁTICA DOS JOGOS COMO FERRAMENTA NO PROCESSO ENSINO APRENDIZAGEM
Authors: Karanauskas Sueli , R.S Nascimento Dulcilene
Published: July 2020

Uma das grandes dificuldades no processo de ensino e aprendizagem são as escolhas dos métodos e em adequá-los a uma  etodologia que seja efetiva, proporcionando avanços significativos. Tais questões sempre foram muito pensadas e discutidas entre  ducadores que apontam para que este processo tenha um olhar voltado a métodos que desafiem e motivem os alunos para que estes alcancem o conhecimento. Nesta perspectiva o presente trabalho aborda a importância dos jogos e brincadeiras no processo  e alfabetização a fim de analisar se a forma de aprender se altera quando o método de trabalho é diferenciado. Reflete-se aqui  cerca de alguns métodos abordados e direcionados em sala de aula como aulas expositivas, atividades xerocadas e atividades do  ivro, que são mais tradicionalmente utilizados confrontando com a utilização de outros métodos lúdicos com a inserção de jogos e  rincadeiras correlacionados ao referencial teórico e que permitiram chegar às conclusões deste artigo. Discute-se aqui se o estudo  ealizado comprova que o lúdico deve fazer parte dos ambientes escolares e se a criança aprende com mais naturalidade quando os  onteúdos propostos são aplicados com a utilização de jogos e brincadeiras. Entende-se que o brincar faz parte do cotidiano do ser humano. Mas qual será a relação deste fato na escolha dos métodos de ensino para proporcionar ou auxiliar no processo de  lfabetização? É possível através dos jogos e brincadeiras aumentar a tensão dos alunos e reduzir a indisciplina? Essas questões  roporcionarão reflexões para possíveis intervenções para um aprendizado mais prazeroso e significativo.
Factors Influencing Farmers Adaptive Capacities to Climate Change Alone River Niger communities in Edo and Kogi States, Nigeria
Authors: S Ekemhonye, , J. N Nmadu, , A. A.A Coker , R. M. A Ndanitsa,
Published: July 2020

Globally, extreme weather is predicted to become more common on animals, plants and crops, which are all expected to be badly affected. In Nigeria, the effects of climate change are expected not to stop at just affecting the agricultural production, it will surely affect the lives and overall development of the country. This study factors influencing farmers’ adaptive capacities to climate change in Edo and Kogi states. Descriptive statistics and ordered logit model were the analytical tools used. Results of the analyses reveal that gender, types of accommodation changes, sanitation, visit to hospital, amount spent on treatment, education and irrigation were the major factors influencing adaptation capacity to climate change in the study. The study recommends that Policy makers should provide basic amenities for respondents residing along river Niger communities, such as health care Centre’s, markets, as well as access to farm land, to reduce challenges of income spent on travelling distance by respondents
La cultura como el punto ciego del orden social
Authors: Araos Bralic Josefina
Published: July 2020

Andrés Biehl y Patricio Velasco (editores), ""Pedro Morandé. Textos sociológicos escogidos"" (Santiago: Ediciones UC, 2017).
Pablo Beytía, "La síntesis de la libertad. Fundamentos teóricos desde la obra de Ortega y Gasset"
Authors: Perpere Álvaro
Published: July 2020

Reseña de Álvaro Perpero del libro de Pablo Beytía "La síntesis de la libertad. Fundamentos teóricos de la Obra de Ortega y Gasset".
La gobernanza fiscal de las Comunidades Autónomas. Una valoración crítica de su estado actual con perspectivas de reforma
Authors: Martínez López Diego
Published: July 2020

Este artículo ofrece una valoración crítica del estado actual de la normativa sobre estabilidad presupuestaria aplicable a las CCAA españolas. En particular, se concentra en la Ley Orgánica de Estabilidad Presupuestaria y Sostenibilidad Financiera (LOEPSF), que ha mostrado una reducida eficacia para el cumplimiento de los objetivos de déficit público y regla de gasto. De manera complementaria, la LOEPSF también ha presentado deficiencias para cubrir el periodo transitorio ahora finalizado, en la aplicación de los mecanismos correctivos, en la ausencia de un mayor automatismo y en la interpretación de algunas de sus cláusulas sobre superávits e ingresos extraordinarios. De cara a su posible reforma, habría que tener en cuenta el nuevo marco de gobernanza fiscal europeo, una eventual reforma de la financiación autonómica en un contexto de profunda recesión económica y un cambio radical (si no la deseable eliminación) de los mecanismos extraordinarios de financiación.
Mesoscale Phenomena during a Macroscopic Solar Eruption
Authors: Zhao 赵 Xiaozhou 小舟 , Keppens Rony
Published: July 2020

Our previous magnetohydrodynamic simulation of a macroscopic solar eruption discussed in Zhao et al. (2019) showed that the current sheet (CS) evolution during eruption went through four stages: the CS growth stage, the dynamic growth stage, the hot CS stage, and the dynamic hot CS stage. We now focus on various mesoscale phenomena associated with the ongoing reconnection. In the dynamic growth stage, the remnant chromospheric matter in the CS is quasi-periodically pushed into the prominence, inducing fast shocks propagating at a speed of 210 km s−1. In the hot CS phase, various shock features relevant for particle acceleration are identified throughout the flare loop. Finally, during both dynamic stages, we quantify the properties of magnetic islands. A typical island is accelerated to Alfvénic speed by the Lorentz force and cools down by radiative cooling and thermal conduction. It also tends to expand in size before colliding with another island, with the FR or with the flare arcade. Islands in the dynamic growth stage have a higher density and lower temperature, and vice versa in the dynamic hot CS stage. Islands tend to move upward in the dynamic growth stage, while almost equal fractions of downward-moving and upward-moving islands in the dynamic hot CS stage. Translating the island trajectories to phase space, we find that the function

fits the trajectory well, and its two fixed points represent the creation and the annihilation of the island.
Aluminum-26 Enrichment in the Surface of Protostellar Disks Due to Protostellar Cosmic Rays
Authors: Gaches Brandt A. L. , Walch Stefanie , Offner Stella S. R. , Münker Carsten
Published: July 2020

The radioactive decay of aluminum-26 (26Al) is an important heating source in early planet formation. Since its discovery, there have been several mechanisms proposed to introduce 26Al into protoplanetary disks, primarily through contamination by external sources. We propose a local mechanism to enrich protostellar disks with 26Al through irradiation of the protostellar disk surface by cosmic rays accelerated in the protostellar accretion shock. We calculate the 26Al enrichment, [26Al/27Al ], at the surface of the protostellar disk in the inner au throughout the evolution of low-mass stars, from M-dwarfs to proto-Suns. Assuming constant mass accretion rates,

, we find that irradiation by MeV cosmic rays can provide significant enrichment on the disk surface if the cosmic rays are not completely coupled to the gas in the accretion flow. Importantly, we find that low accretion rates,

M
⊙ yr−1, are able to produce canonical amounts of 26Al,

. These accretion rates are experienced at the transition from Class I- to Class II-type protostars, when it is assumed that calcium-aluminum-rich inclusions condense in the inner disk. We conclude that irradiation of the inner disk surface by cosmic-ray protons accelerated in accretion shocks at the protostellar surface may be an important mechanism to produce 26Al. Our models show protostellar cosmic rays may be a viable model to explain the enrichment of 26Al found in the solar system.
The 100 pc White Dwarf Sample in the SDSS Footprint
Authors: Kilic Mukremin , Bergeron P. , Kosakowski Alekzander , Brown Warren R. , Agüeros Marcel A. , Blouin Simon
Published: July 2020

We present follow-up spectroscopy of 711 white dwarfs within 100 pc, and we present a detailed model atmosphere analysis of the 100 pc white dwarf sample in the Sloan Digital Sky Survey footprint. Our spectroscopic follow-up is complete for 83% of the white dwarfs hotter than 6000 K, where the atmospheric composition can be constrained reliably. We identify 1508 DA white dwarfs with pure hydrogen atmospheres. The DA mass distribution has an extremely narrow peak at 0.59 M
⊙ and reveals a shoulder from relatively massive white dwarfs with M = 0.7–0.9 M
⊙. Comparing this distribution with binary population synthesis models, we find that the contribution from single stars that form through mergers cannot explain the overabundance of massive white dwarfs. In addition, the mass distribution of cool DAs shows a near absence of M > 1 M
⊙ white dwarfs. The pile-up of 0.7–0.9 M
⊙ and the disappearance of M > 1 M
⊙ white dwarfs is consistent with the effects of core crystallization. Even though the evolutionary models predict the location of the pile-up correctly, the delay from the latent heat of crystallization by itself is insufficient to create a significant pile-up, and additional cooling delays from related effects like phase separation are necessary. We also discuss the population of infrared-faint (ultracool) white dwarfs and demonstrate for the first time the existence of a well-defined sequence in color and magnitude. Curiously, this sequence is connected to a region in the color–magnitude diagrams where the number of white dwarfs with a helium-dominated atmosphere is low. This suggests that the infrared-faint white dwarfs likely have mixed H/He atmospheres.
The Effect of Massive Neutrinos on the Halo Spin Flip Phenomenon
Authors: Lee Jounghun , Libeskind Noam I. , Ryu Suho
Published: July 2020

The halo spin flip refers to the phenomenon that the spin axes of dark matter halos with masses above a certain threshold tend to be preferentially aligned perpendicular to the hosting large-scale filaments, while low-mass halos tend to have their spin axes aligned parallel to such structures. Extensive work has so far been conducted to understand this phenomenon under the assumption of cold dark matter and suggested that its origin should be closely related to the nonlinear evolution of the halo angular momentum in the anisotropic cosmic web. We present, for the first time, a numerical examination of this phenomenon assuming the presence of massive neutrinos, finding a clear and robust dependence of the threshold mass for the spin flip on the total neutrino mass. Our physical explanation is that the presence of more massive neutrinos retard the nonlinear evolution of the cosmic web, which in turn allows the halo spin vectors to better retain their memories of the initial tidal interactions in the nonlinear regime. Our finding implies that the statistical alignment of halo spins with the large-scale structures can be in principle used as a probe of the total neutrino mass.
Synopsis of fruit-piercing moths of the genus Eudocima (Lepidoptera, Erebidae) from Colombia
Authors: Vargas-Fonseca Sergio , Correa-Carmona Yenny , Montes-Rodríguez José Mauricio , Calero-Mejía Humberto , Zilli Alberto
Published: July 2020

In order to provide information about the diversity and distribution of Eudocima species in Colombia, 261 specimens deposited in entomological collections were examined and identified. We found seven of the eight species of Eudocima recorded in the Neotropics: E. anguina, E. colubra, E. collusoria, E. memorans and E. serpentifera, all being recorded for the first time from the country. We provide a list of the species, comments on the biology and distribution data, illustrations of the adults, and keys for species identification.
An Enduring Enchantment: The Fairy Tale in the DDR, from the Brothers Grimm to 'the Singing Ringing Tree'
Authors: Callow John
Published: July 2020

The Marchen/Fairy Tale films produced by the state DEFA studio in East Berlin have proved to be among the DDR's most enduring cultural achievements. This article examines at the ways in which the works of the Brothers Grimm were brought within an explicitly socialist pedagogy and how
official Marxism attempt to comprehend and refashion folk and fairy tales. It is argued that this was most surely accomplished through the creative partnership of Anne Geelhaar, an East German writer, and Francesco Stefani, a West German director. Their creation, in 1957, of the apparently
timeless but in reality entirely new tale of 'The Singing Ringing Tree' – despite an element of official opposition – has enjoyed enduring popular success and, through its inclusion within the BBC's 'Tales from Europe' managed to circumvent and transcend the suspicions and stereotypes
fostered by the Cold War.
Confronting power: how can we transform political education?
Authors: Williams Ellen Moran & Taya , Khan Farzana , Clancy Sharon , Josette Sasha
Published: July 2020

Five people involved in political education projects look at ways of creating approaches to political education that can assist in the development of a culturally inclusive, participatory and democratic left politics. Transforming political education means confronting issues of power
within the left itself, as well as an ongoing reckoning with issues of class and race both inside and outside the left. It also means re-booting the radical tradition of adult education, and working together to develop new and better ways of organising, convening and building solidarities.
Contributors draw on their experiences with ACORN, Voices that Shake!, Platform, Adult Education 100 and The World Transformed.
Sustainable supply chain management framework in a higher education laboratory using intuitionistic fuzzy cognitive map
Authors: Purnomo Muhammad Ridwan Andi , Anugerah Adhe Rizky , Dewipramesti Bella Taradipa
Published: July 2020

Purpose: This research aims to develop framework in the sustainable supply chain management (SCM) and to provide causal model of service industry specifically in higher education laboratory.Design/methodology/approach: The concepts of sustainable SCM in higher education laboratory were obtained by in-depth interviews and organized using Delphi method. While to identify the relationship between concepts, intuitionistic fuzzy cognitive map was utilized.Findings: As many as 15 concepts were identified to assess sustainability in the higher education laboratory SCM. These 15 concepts were classified into four categories according to its importance level, and there are two most important concepts: legal requirement and social responsibility. It is recommended for higher education laboratories to constantly obey national and regional government regulations and to satisfy current and prospective employers by providing work-ready graduates. This suggestion is expected to make higher education achieving its sustainability goals.  Originality/value: This research is the first to develop a framework for sustainable SCM and to provide a causal model of the service industry especially in the education sector using intuitionistic fuzzy cognitive map.
SAFER-ROP: Updated Protocol for Anti-VEGF Injections for Retinopathy of Prematurity
Authors: Beck Kinley D. , Rahman Effie Z. , Ells Anna , Mireskandari Kamiar , Berrocal Audina M. , Harper C. Armitage
Published: July 2020

BACKGROUND AND OBJECTIVE:

To describe a safe and dependable protocol for intravitreal injections for the treatment of retinopathy of prematurity (ROP).

MATERIALS AND METHODS:

SAFER is an acronym used to describe the injection protocol and includes (S)hort needle (4-mm length), (A)ntiseptic/antibiotic (5% to 10% topical betadine), (F)ollowup (48 to 72 hours post-injection), (E)xtra attention to detail (clean environment, injection site 0.75 mm to 1.0 mm posterior to limbus), and (R)echeck (1 to 2 weeks following injection and until mature vascularization or laser).

RESULTS:

No cases of cataract formation, endophthalmitis, or vitreous hemorrhage using this technique were reported in a recent retrospective chart review.

CONCLUSION:

This protocol is a safe way to inject anti-vascular endothelial growth factor and to monitor ROP progression following injection.

[
Ophthalmic Surg Lasers Imaging Retina.
2020;51:402–406.]
Effect of soil temperature during seed filling period on oleic/linoleic ratio, tocopherols and sugar contents in peanut kernels
Authors: Haro R. J. , Dardanelli J. L. , Martínez M. J.
Published: July 2020

The relationship of chemical quality of peanut seed with the soil temperature (ST) has received little attention. The aim of this work was to determine the effects of ST in the seed growth environment, during the seed filling period, on the oleic/linoleic acid (O/L) ratio, alpha, beta, gamma, delta tocopherols and the sum of them (TT), fructose, glucose and sucrose and the sum of them (FGS), contents in peanut kernels. Field experiments included cultivars (Florman and ASEM), water regimes (irrigated and water stress), sowing dates and alteration of ST. The response of O/L ratio to ST fitted a linear model, where the O/L ratio increased while ST increased. Mean O/L ratios were 1.31 for ASEM and 1.20 for Florman. The TT mean concentration was similar for both genotypes (478 ppm). A positive association between α-tocopherol (the main source of vitamin E) and ST, and a negative association between δ and α tocopherols were detected. The responses of FGS and sucrose to ST fitted linear models, where increments in ST showed decreases in FGS and sucrose concentrations. However, the decrease rates of FGS and sucrose in ASEM were three times lower than in Florman. The results showed that ST affected the chemical composition of peanut kernels, which mainly determines the shelf life and flavor of both genotypes differentially.
Chemical composition, oxidative stability, and sensory properties of Boerhavia elegana Choisy (alhydwan) seed oil/peanut oil blends
Authors: Al-Farga A. , Baeshen M. , Aqlan F. M. , Siddeeg A. , Afifi M. , Ali H. A. , Alayafi A. , Al-Dalali S. , Alkaladi A.
Published: July 2020

This study investigated the effects of blending alhydwan seed oil and peanut oil as a way of enhancing the stability and chemical characteristics of plant seed oils and to discover more innovative foods of high nutraceutical value which can be used in other food production systems. Alhydwan seed oil and peanut oil blended at proportions of 10:90, 20:80, 30:70, 40:60 and 50:50 (v/v) were evaluated according to their physi­cochemical properties, including refractive index, relative density, saponification value, peroxide value, iodine value, free fatty acids, oxidative stability index, and tocopherol contents using various standard and published methods. At room temperature, all of the oil blends were in the liquid state. The physicochemical profiles of the blended oils showed significant decreases (p < 0.05) in peroxide value (6.97–6.02 meq O2/kg oil), refractive index at 25 °C (1.462–1.446), free fatty acids (2.29–1.71%), and saponification value (186.44–183.77 mg KOH/g), and increases in iodine value and relative density at 25 °C (98.10–102.89 and 0.89–0.91, respectively), especially with an analhydwan seed oil to peanut oil ratio of 10:90. Among the fatty acids, oleic and linoleic acids were most abundant in the 50:50 and 10:90 alhydwan seed oil to peanut oil blends, respectively. Oxidative stability increased as the proportion of alhydwan oil increased. In terms of tocopherol contents (γ, δ, and α), γ-tocopherol had the highest values across all of the blended proportions, followed by δ-tocopherol. The overall acceptability was good for all blends. The incorporation of alhydwan seed oil into peanut oil resulted in inexpensive, high-quality blended oil that may be useful in health food products and pharmaceuticals without compromising sensory characteristics.
Exploring the potential of cuttlebone waste to produce building lime
Authors: Ferraz E. , Gamelas J. A.F. , Coroado J. , Monteiro C. , Rocha F.
Published: July 2020

The goal of this study is to find a practicable way to recycle cuttlebone waste in the production of lime. It was studied the behavior of calcium oxide obtained from the calcination of this waste at 900, 1000 and 1100 ºC and, after wet slaking, the produced lime was characterized. All the results were compared to calcium oxide or to hydrated lime obtained from commercial limestone. According to the slaking results, the waste and the limestone calcined at 1000 ºC achieved the R4 (around 13 min to reach 60 ºC) and R5 (60 ºC in 25 s) reactiv­ity class, respectively. Changing the calcination temperature to 900 or 1100 ºC did not promote an increase in the reactivity of the calcined waste. Although less reactive than the calcined limestone, the calcined cuttlebone can be transformed without significant constraint into building lime, since this construction material fulfills the relevant physic-chemical standard specifications.
L’enseignement de la direction de chœur en France
Authors: Lurton Guillaume
Published: July 2020

Alors que la polyphonie vocale occupe un rôle central dans la tradition de musique savante occidentale, le chant choral est longtemps resté étrangement absent des institutions modernes d’enseignement musical françaises. Délaissé par le conservatoire depuis sa création, ce n’est qu’à la fin du XXes., dans les années 1980, que sont créées les premières classes de chant choral et des cursus de direction de chœur. Ce décalage chronologique reflète une trajectoire institutionnelle originale. Initialement porté par les maîtrises religieuses, l’enseignement du chœur ne sera réintégré au conservatoire qu’à l’issue d’une longue période de relative désinstitutionalisation. Cet article retrace les dynamiques politiques et organisationnelles qui ont conduit à la réinstitutionnalisation de l’enseignement de la direction de chœur. Il pointe les conséquences symboliques et les implications économiques sur la pratique de la direction de chœur de ce rapport paradoxal aux institutions d’enseignement.
Influence of La, Mn and Zn Substitution on the Structure, Magnetic and Absorption Properties of M-Type Barium Ferrites
Authors: Winatapura Didin Sahidin , Deswita  , Wisnu Ari Adi , Purwanto Setyo , Buys Y.F.
Published: July 2020

A series of M-type barium ferrites with chemicals composition BaFe12O19 and Ba0.7La0.3Fe(12-2x)(MnZn)xO19 (with x = 0.0, 0.2, 0.5) were synthesized using a chemical coprecipitation based technique. The sample was then called as BFO and BLF, BLFMZ-02 and BLFMZ-05, respectively. The structural parameters were measured by applying the full pattern fitting of Rietveld method using Fullprof program. The crystallite size was calculated using Scherrer formula and Williamson-Hall analysis method, and also confirmed by scanning electron microscope (SEM) and transmission electron microscope (TEM). The morphology of particle is composed of fine-grained aggregates with particle size distributions in the range of 70nm - 160nm. The lattice parameter (a = b and c), cell volume (Vcell) and density (ρ) of the samples were found to be changed with La, Mn and Zn substitution due to the dissimilar cationic radii of Ba2+ (1.49Å), La3+ (1.22Å), Fe3+ (0.64Å), Mn3+ (0.89Å) and Zn2+ (0.76Å) ions. The results of sample measurements with Vibrating Sample Magetometer (VSM) indicate that the magnetic behaviours showed that the saturation magnetization (Ms) increased gradually with the substitution of La3+, Mn3+ and Zn3+ ions, whereas the coercivity (Hc) was increase with addition of La3+ ions and then decrease significantly with the addition of Mn3+ and Zn2+ ions. The vector network analyzer (VNA) revealed that microwave absorption measured within 7 – 15 GHz frequency range indicated optimum reflection loss (RL) of-21.50dB at 10.5GHz for BLMZ-02 sample.
Effects of Mn Substitution on Magnetic Properties of ZnO Nanoparticles
Authors: Asih Retno , Dhari Rosana Martina , Baqiya Malik Anjelh , Astuti Fahmi , Harsono Heru , Saiyasombat Chatree , Kawamata Takayuki , Noji Takashi , Sato Hidetaka , Kato Masatsune , Watanabe Isao , Darminto
Published: July 2020

Effects of Mn-substitution on magnetic properties of Zn1-xMnxO (MZO) nanoparticles with x= 0.00, 0.03, 0.05 and 0.07 have been investigated along with their local structure. Study on Mn K-edge XANES spectra of MZO reveals that the oxidation state increases by Mn-substitution, which further implies that MZO exhibits a mixed valence state of Mn3+/Mn4+. The local structure analysis on Mn K-edge EXAFS spectra shows that the coordination number (CN) of Mn reduces by increasing Mn concentration, thus the amount of oxygen vacancy (VO) increases by Mn-substitution. Interestingly, the magnetization of MZO also tend to increase as the Mn concentration increases. The M(H) curves exhibit a linear (paramagnetic) behavior, showing no evidence of room-temperature ferromagnetism. Our results show that magnetism of MZO is related to the correlation between Mn magnetic moment and VO.
The Mole Fraction Effect on Magnetic Properties of BaxSr1-xTiO3 (x = 0; 0.125; 0.25; 0.375; 0.500) Thin Film
Authors: Rahmawaty Vania , Palupi Endah Kinarya , Patonah Nazopatul , Sumaryada Tony , Irzaman
Published: July 2020

Barium Strontium Titanate (BaxSr1-xTiO3) thin films have been synthesized for mole fraction = 0; 0.125; 0.25; 0.375; and 0.500 using Chemical Solution Deposition (CSD) method. The thin film was grown on p-type silicon (100) substrate using spin coating technique and annealed at 850∘C for 8 hours with an increasing rate of 1.67∘C/minute. The BST thin film was characterized using LCR meter to obtain data on frequency, charge, and electrical current. We also model the occurrence of vicinity magnetic induction around the thin film produced by the current flow in the BST thin film. The electrical and magnetic induction response of BST thin film with variation of mole fraction are presented here.
Influence of Gamma Irradiation to Magneto-Impedance Ratio in the Electrodeposited [NiFe/Cu]4 Multilayer
Authors: Ismail  , Pribadi Bangun , Oktaria Vina , Sutomo Artono Dwijo , Utari  , Purnama Budi
Published: July 2020

Influence of gamma irradiation to the magneto-impedance ratio of the electrodeposited [NiFe/Cu]4 multilayer on meander-shape PCB substrate has been studied. The magneto-impedance ratios were measured for both un-irradiated and irradiated by gamma radiation of Co-60 with a total dose of 40 Gy. The morphological structure were done by using scanning electron microscopy (SEM). The decrease in grain size of the samples after Gamma irradiated is observed. The magnetic property modifies as consequence of the change in the microstructure samples. Within result, the magneto-impedance ratio decreases around 34.9% for irradiated sample.
Recyclable Natural Magnetite Nanoparticles for Effective Degradation of Methylene Blue in Water under UV Light Irradiation
Authors: Mufti Nandang , Maryam Siti , Setiyanto Henry , Taufiq Ahmad , Sunaryono
Published: July 2020

Among the numerous materials used for dye removal, magnetite is particularly interesting due to its ability to act as an adsorbent and a Fenton catalyst, being easily separable by application of a magnetic field and reusable. Herein, we describe a co-precipitation–based synthesis of magnetite nanoparticles (particle size = 11 nm, surface area = 147.12 m2 g–1) from iron sand and investigate their effectiveness for methylene blue (MB) degradation. The above nanoparticles could promote the decomposition of MB both in the dark (via adsorption) and under UV light irradiation (via Fenton-type degradation), exhibiting the additional advantage of recyclability. Thus, MB degradation efficiencies are 76.32, 76.08, and 68.52% for first, second, and third cycles, respectively, indicating that the prepared magnetic material is a promising recyclable catalyst for the decontamination of dye-containing wastewater. The photo Fenton reactions take to account for reproducibility of MB degradation.
Synthesis and Magnetic Characterization of La2-xSrxCuO4 Nanoparticles
Authors: Baqiya Malik Anjelh , Putra Putu Eka Dharma , Irfanita Resky , Fitriana  , Darminto  , Kawamata Takayuki , Noji Takashi , Sato Hidetaka , Kato Masatsune
Published: July 2020

Non-doped and strontium-doped lanthanum cuprates (La2CuO4 (LCO) and La1.85Sr0.15CuO4 (LSCO15)) in nano-sized particles were synthesized by the chemically dissolved technique employing HNO3 as the dissolving agent. The structural and magnetic properties were investigated by using an x-ray diffraction (XRD) apparatus and a superconducting quantum interference device (SQUID) magnetometer, respectively. The XRD patterns of LCO and LSCO15 show the formation of the single phase without impurities after the calcinations in air at 1100°C for 15 h and the post-annealing in oxygen at 800 °C for 24 h. The average crystallite sizes of LCO and LSCO15 samples were in a range of around 100 nm confirming nano-sized particles. The LCO and LSCO15 nanoparticles exhibit superconductivity at the superconducting (SC) transition temperature, Tc, of 23 K and 38 K, respectively. The magnetization curve measurements have revealed that both samples show the appearance of ferro- and dia-magnetic behavior at room temperature and the appearance of superconductivity at low temperatures. This result may indicate the coexistence of ferromagnetism and superconductivity below Tc in the nano-sized cuprates.
Effect of Lanthanum Substituted CoFe2-xLaxO4 on Change of Structure Parameter and Phase Formation
Authors: Johan Akmal , Wisnu Ari Adi , Arsyad Fitri Suryani , Setiabudidaya Dedi
Published: July 2020

In this research, CoFe2-xLaxO4-based smart magnetic material has been developed which will be applied as a microwave absorbing material. This smart magnetic material is an artificial advanced material which has properties such as electromagnetic waves so that it is able to respond to the presence of microwaves through the mechanism of spin electron resonance and wall resonance domain. This smart magnetic material consists of a combination of rare earth metal elements (spin magnetic in theforbital configuration) and transition metal elements (spin magnetic in thedorbital configuration) with a semi-hard magnetic structure. This semi-hard is a characteristic of magnetic properties which is between hard magnetic and soft magnetic properties. This characteristic of the semi-hard magnetic properties is needed so that this material has the ability to absorb microwaves. Substitution of lanthanum into cobalt ferrite CoFe2-xLaxO4for La3+(x = 0 - 0.8) has been synthesized using the solid reaction method through mechanical deformation techniques. The refinement result of X-ray diffraction shows that the sample contains 2 phases with increasing of x compositions. Particle morphology and elementary analysis were observed respectively by using a scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS). It was concluded that the effect of La substitution on CoFe2-xLaxO4resulted in changes in the crystal structure parameters and phase transformation as a function of composition.