bluuebunny/crossref_metadata_2025 huggingface dataset:
COLLABORATIVE GOVERNANCE DALAM PENGEMBANGAN USAHA MINYAK KAYU PUTIH DI KABUPATEN BURU PROVINSI MALUKU
Authors: Firda Catur Utami  , Dedeh Maryani  , Ali Hanafiah Muhi
Published: December 2021

Penelitian ini bertujuan untuk mengetahui dan menganalisis collaborative governance dalam pengembangan usaha minyak kayu puti di Kabupaten Buru. Penelitian ini menggunakan metode deskriptif dengan pendekatan kualitatif. Teknik pengumpulan data yang digunakan adalah wawancara, observasi dan dokumentasi. Untuk menjamin validitas data menggunakan triangulasi.

Dalam penelitian ini menggunakan teori collaborative governance dari Ansell dan Gash (2007), yang pada tahap kondisi awal menggambarkan adanya ketidakseimbangan sumber daya di mana potensi sumber daya alam yang ada tidak diimbangi dengan sumber daya manusia yang kompeten dan profesional; pada aspek desain kelembagaan adapun pihak yang terlibat dan berpartisipasi adalah pemerintah daerah dalam hal ini dinas perindustrian dan perdagangan, BUMD Nusa Gelan, pihak swasta dan masyarakat penyuling di mana dinas perindustrian sebagai leading sector, BUMD Nusa Gelan sebagai fasilitator, dan anggota swasta serta masyarakat penyuling; kepemimpinan fasilitatif adalah direktur BUMD dengan melihatposisinya yang menjadi penghubung antara pihak yang berpartisipasi; proses kolaborasi pada tahap face to face dialog dilakukan dengan melakukan diskusi atau pertemuan antar pihak yang terlibat, masih ditemukan adanya ketidakpercayaan antarsesama beberapa masyarakat penyuling, komitmen dalam kolaborasi sudah berjalan cukup baik dengan para pihak yang terlibat menjalankan tugas berdasarkan peran dan kapasitas yang dimiliki, masih belum meratanya pemahaman mengenai visi misi atau tujuan dari kolaborasi ini namun tetap menjalankan tugas dan kewajiban masing-masing, hasil akhir kolaborasi sudah cukup baik namun belum optimal meskipun masih ditemui adanya hambatan-hambatan.
IMPLEMENTASI KEBIJAKAN PERUBAHAN KEDUDUKAN KELURAHAN DARI PERANGKAT DAERAH MENJADI PERANGKAT KECAMATAN DI KELURAHAN MATAWAI KECAMATAN KOTA WAINGAPU KABUPATEN SUMBA TIMUR PROVINSI NUSA TENGGARA TIMUR
Authors: Umbu Raya Paskah Kulandima  , Layla Kurniawati  , Etin Indrayani
Published: December 2021

Penelitian ini bertujuan untuk menganalisis implementasi kebijakan perubahan kedudukan kelurahan dari perangkat daerah menjadi perangkat kecamatan di Kelurahan Matawai Kecamatan Kota Waingapu Kabupaten Sumba Timur, serta untuk menganalisis strategi dalam mengatasi masalah yang timbul akibat kebijakan tersebut.

Analisis dalam penelitian ini menggunakan teori implementasi kebijakan yang dikemukakan oleh George C. Edwards III, yakni analisis dengan pendekatan komunikasi, sumber daya, disposisi dan struktur birokrasi. Upaya penemuan solusi menggunakan analisis SOAR (strengths, opportunity, aspiration, result) serta menggunakan quantitative strategic planning matriks (QSPM) dalam menentukan alternatif strategi prioritas.

Penelitian ini menggunakan metode penelitian deskriptif kualitatif dengan pendekatan induktif yang bertujuan mencari pemahaman berdasarkan fakta atau kenyataan yang ada di lokasi penelitian, kemudian dilakukan penelaahan agar diperoleh gambaran yang jelas dan sistematis dalam rangka pemecahan masalah yang dihadapi. Sumber data yang digunakan adalah person (orang), place (tempat), paper (data). Untuk pengambilan data dan informasi dilakukan menggunakan teknik wawancara, dokumentasi, observasi, dan triangulasi. Kemudian teknik analisis data meliputi data collection (pengumpulan data), data display (penyajian data), data reduction (reduksi data), dan conclusion drawing (penarikan simpulan).

Berdasarkan hasil penelitian dan pengolahan data diperoleh: 1) Secara umum pelaksanaan kegiatan pemerintahan di Kelurahan Matawai berjalan dengan baik, namun masih terdapat masalah yang timbul, yakni menyangkut sumber daya manusia, anggaran, kewenangan, tugas pokok dan fungsi, pengangkatan birokrat, insentif dan SOP. 2) berdasarkan hasil pengolahan data, alternatif strategi terpilih yang menjadi prioritas adalah Kelurahan Matawai harus mengoptimalkan pemanfaatan sumber daya manusia/staf.
ANALISIS PENGELOLAAN BARANG MILIK DAERAH PADA PEMERINTAH DAERAH KABUPATEN DEIYAI PROVINSI PAPUA
Authors: Peter Joharry Matakena  , Kusworo  , Udaya Madjid
Published: December 2021

Tujuan penelitian ini adalah untuk menganalisis dan mendeskripsikan pengelolaan barang milik daerah pada Pemerintah Daerah Kabupaten Deiyai, kemudian menganalisis dan mendeskripsikan faktor-faktor yang memengaruhi dan selanjutnya merumuskan strategi yang tepat digunakan dalam pengelolaan barang milik daerah di Kabupaten Deiyai. Metodologi penelitian yang dipakai adalah penelitian kualitatif deskriptif dengan studi literatur. Proses penelitian dimulai dengan menyusun asumsi dasar dan model konseptual atau model berpikir yang akan digunakan dalam penelitian ini. Analisis dan model konseptual tersebut selanjutnya diterapkan secara sistematis dalam pengumpulan dan pengolahan data untuk memberi penjelasan secara deskriptif berdasarkan analisis SWOT dan diuji menggunakan Litmus Test.

Hasil dari penelitian ini mendeskripsikan bahwa Pemerintah Kabupaten Deiyai dalam mengelola barang milik daerah masih belum memadai baik dari sisi perencanaan, pengorganisasian, pelaksanaan dan pengawasan sebagai suatu fungsi manajemen menurut George Richard Terry. Faktor-faktor penghambat dalam pengelolaan barang milik daerah di Kabupaten Deiyai adalah karena kurangnya pemahaman entitas dalam pengelolaan barang milik daerah, sikap dan perilaku masyarakat yang cenderung menyulitkan (pemalangan dan hak ulayat) pengelolaan barang milik daerah, keterbatasan anggaran dan kurangnya sarana prasarana yang tersedia dalam pengelolaan barang milik daerah. Oleh karena itu, Asumsi Peneliti terkait pemecahan masalah dan strategi yang tepat dalam mengatasi faktor penghambat dalam pengelolaan barang milik daerah di Kabupaten Deiyai, yaitu dengan melakukan penempatan tenaga kerja sesuai basis dan kemampuan the right man on the right place, melakukan kaderisasi dan peningkatan kualitas ASN dalam pengelolaan barang milik daerah dan melakukan pendekatan persuasif kekeluargaan dengan masyarakat dalam upaya penguatan aturan serta kebijakan pengelolaan barang milik daerah di Kabupaten Deiyai.
Chi dice ragna dice danno. Ecfrasi e ipostasi di Aracne nell’opera di Primo Levi
Authors: Cravero Mattia
Published: December 2021

L’articolo analizza le citazioni ecfrastiche della Divina Commedia nell’opera di Primo Levi e dimostra la loro preponderanza nella produzione del chimico-scrittore. Due incisioni di Gustave Doré, in particolare, si ancorarono alla mente del giovane Levi quando, da piccolo, sfogliò e risfogliò l’opera dell’artista francese, fissandosi come un’icona inossidabile che raffigurava i versi di Dante. Ritornarono alla sua attenzione in età matura, sottoforma di simboliche reminiscenze, durante la sua attività di scrittore, favorendo la sua creatività letteraria e dimostrando un ascendente artistico che l’autore stesso negava di avere. L’intento del presente saggio è dunque dipanare il fil rouge della visualità nell’opera di Levi: tramite la comparazione dei passi e delle raffigurazioni della Commedia, ricostruendo la cronologia che intercorre tra questi rapporti, l’obiettivo è ricostruire l’influenza dell’arte nella vita e nella produzione letteraria del chimico-scrittore.
Juan Carlos de Miguel (ed.), Palabras tendidas. La obra de Vittorio Bodini entre España e Italia
Authors: Perez Carranza Celia
Published: December 2021

El volumen recoge nueve escritos críticos y ensayísticos sobre la figura Vittorio Bodini y sus relaciones con España, su literatura y su cultura.
Pio II, Pienza e la descrizione di una città intelligente: un'ecfrasi senza retorica
Authors: Fattorini Gabriele
Published: December 2021

Ripercorrendo la lunga e ben nota ecfrasi che Pio II dedicò a Pienza nei Commentarii, il contributo intende evidenziare che Enea Silvio Piccolomini progettò e mise in atto - tramite Bernardo Rossellino - un progetto di città in carne e ossa estremamente razionale, che egli seppe finanziare e costruire mattone per mattone, pietra per pietra, edificio per edificio; una città che innalzò a centro di una nuova diocesi e descrisse senza alcuna retorica. Più che il sogno umanistico di una città “ideale” - come di norma si usa dire - Pienza può dunque apparire come un modello pragmatico e virtuoso di grande attualità, particolarmente a fronte delle elaborazioni troppo spesso fumose e tutte concettuali sul tema della “smart city” che tanta fortuna tendono a riscuotere nella società contemporanea.
Electrochemical determination of tramadol using modified screen printed electrode
Authors: Ahmadi Sayed ali , Mohammadi Sayed Zia , Jafari Maedeh , Mohammadzadeh  Jahani Peyman , Mashayekh Raana
Published: December 2021

The detection of tramadol using a screen printed electrode modified with La3+/ZnO nano-flowers and multi-walled carbon nanotubes (La3+/ZnO NFs-MWCNTs/SPE) is reported in this work. In order to examine tramadol electrochemical oxidation, the modified electrode was implemented with the utilization of differential pulse voltammetry, chronoamperometry and cyclic voltammetry as diagnostic techniques. The proposed electrode displays favorable electrocatalytic behavior concerning tramadol oxidation with an approximately 330 mV potential shift to a lesser positive potential. In the 0.5 to 800.0 μM range for tramadol, differential pulse voltammetry displays linear dynamic activity. Tramadol detection limit of 0.08 μM was derived within optimized testing conditions for this simple construction sensor. Lastly, this fabricated sensor was utilized with desirable results to determine tramadol in tramadol samples and urine samples.
Vilkår for muntlig deltakelse på mellomtrinnet
Authors: Sæbø Johanne Ur , Skaftun Atle , Nygard Arne Olav
Published: December 2021

I denne artikkelen søker vi å gi svar på følgende spørsmål: Hvilke muntlige dialogiske rom finnes i klasseromshverdagen på mellomtrinnet? Det gjøres ved å studere mulighetene elevene får til å bruke stemmen sin og språket sitt i læringsarbeidet. Studien er basert på observasjoner i fire klasser på mellomtrinnet på én skole. Hver av klassene har blitt observert i én uke. Fyldige feltnotater samt lydopptak i én av klassene utgjør datamaterialet. I analysen identifiseres først hvilke organiseringsformer som er nyttet i alle de observerte timene (helklasse, individuelt arbeid, par- og gruppearbeid). Videre identifiseres og undersøkes den muntlige interaksjonen i helklasseundervisningen, og da spesielt sekvenser med dialogisk potensial. Drøftingen indikerer at elevene på mellomtrinnet, selv i et fellesskap preget av relasjonell anerkjennelse, i liten grad inviteres inn i utforskende dialoger der de får bruke sitt språk og sine idéer i møte med faglige problemstillinger. Med henspill på de siste tiårs nasjonale satsinger rettet mot fornyelse av skolens praksis i retning av mer elevaktive arbeidsformer, er dette tankevekkende. Studiens bidrag er å tilby realistiske bilder fra klasseromshverdagen som utgangspunkt for å peke på vilkår for å skape dialogiske rom der elevene får bruke sitt språk og sine idéer i faglig utforsking.
Malakofauna Přírodní rezervace Údolí Teplé (západní Čechy) [Mollusc assemblage of the Údolí Teplé Nature Reserve (Czech Republic: West Bohemia)]
Authors: Dvořák Libor
Published: December 2021

Author has found 49 mollusc species in the Údolí Teplé Nature Reserve in 2007. The most species occur in alder forest near the Teplá River and in small parts of the talus slope covered by mountain ash, willow, and hazel. The richest sites host up to 30 mollusc species. Perpolita petronella (L. Pfeiffer, 1853) is endangered species of the highest conservation importance in the reserve. Other species interesting in term of regional snail fauna are Euconulus praticola (Reinhardt, 1883) (rare species of wetlands), Semilimax kotulae (Westerlund, 1883), and Discus ruderatus (A. Férussac, 1821) (both boreoalpine species of mountain forests). The mollusc assemblages consist of forest species (ca. 1⁄2), wetland and aquatic species (ca. 1⁄4), and mesophilous species (ca. 1⁄4). Although some open sites are presented in the reserve (along the railway), no xerophilous species or species of open habitats were found. No specific management is necessary to preservation of relatively rich mollusc assemblages.
Terrestrial gastropods (Mollusca, Gastropoda) of the Bulgarian part of the Alibotush Mts.
Authors: Dedov Ivailo Kanev
Published: December 2021

This work presents results of two years collecting efforts within the project “The role of the alpine karst area in Bulgaria as reservoir of species diversity”. It summarizes distribution data of 44 terrestrial gastropods from the Bulgarian part of Alibotush Mts. Twenty-seven species are newly recorded from the Alibotush Mts., 13 were confirmed, while 4 species, previously known from the literature, were not found. In the gastropod fauna of Alibotush Mts. predominate species from Mediterranean zoogeographic complex. A large part of them is endemic species, and this demonstrates the high conservation value of large limestone areas in respect of terrestrial gastropods.
The first records of Aegopinella ressmanni (Westerlund, 1883) in the Czech Republic extends its distribution range northwards
Authors: Horsák Michal , Myšák Jan
Published: December 2021

A topsoil-dwelling Eastern Alpine terrestrial snail Aegopinella ressmanni (Westerlund, 1883) was found for the ﬁrst time in the Czech Republic at nine sites in E Bohemia. Abundant populations of the species occurred in wet habitats of the Tichá Orlice River valley between the village of Hnátnice and the town of Brandýs nad Orlicí. These Czech populations were found 250 km far from the known northernmost sites in Germany and Austria.
Fatty acids in wild hemp seeds (Cannabis sativa L. ssp. sativa var. spontanea Vavilov)
Authors: Špirović-Trifunović Bojana , Nedeljković Dejan , Stojićević Darko , Božić Dragana
Published: December 2021

Wild hemp (Cannabis sativa L. ssp. sativa var. spontanea) is a special variety of industrial hemp (Cannabis sativa L. ssp. sativa), which is believed to have originated from the acclimatization of industrial hemp to the ruderal habitat conditions of Eastern Europe. In Serbia it is found along roads, on field edges, stubble fields, garbage dumps etc., but also as a weed in fields. Due to the great popularity of industrial hemp, which can be used for various purposes (as raw material in food and pharmaceutical industry, in the production of gluten-free flour, biodiesel, detergents, in folk medicine), many researchers have analyzed its seeds, including analysing their fatty acids content. However, even though this knowledge can be of chemotaxonomic, ecological, evolutionary and nutritional significance, there is no data on the presence and composition of fatty acids in wild hemp seeds For the analysis of fatty acids in wild hemp seeds, the seed material was collected from two locations. After the extraction with hexane, determination of fatty acid esters was performed by capillary gas chromatography. Chromatographic peaks in the samples were identified by comparing the retention times with the retention times of the fatty acid esters in the analytical standard of a mixture of 37 fatty acid esters. The fatty acid composition is expressed as the relative mass fraction of the total fatty acids. The analysis of fatty acids in wild hemp seeds reveales the presence of 15 different acids, with content of 17.5% (U1) and 14.7% (U2) in relation to the total seed weight. Linoleic (45.3 and 47.5%) and a-linoleic (13.6 and 15.5%) acids were the most dominant. Of the 15 detected fatty acids, only 4 are saturated, with a representation of about 12%. Unsaturated fatty acids are present in a significantly higher proportion (about 88%), which indicates the nutritional value of these seeds.
Meta-análisis del efecto en el rendimiento académico de los Smartphones como herramienta educativa en educación superior (2016-2020)
Authors: Uxach Molina Belinda
Published: December 2021

La presente investigación pretende aunar los esfuerzos de distintos investigadores realizados en los últimos 5 años (2016-2020) sobre el análisis del efecto producido por los Smartphones en la educación reglada, concretamente en el ámbito universitario. En relación con la metodología seguida se tomó como referencia las fases recomendadas por Meca (2010). Los estudios incluidos en este meta-análisis han sido seleccionados de entre los que se obtuvieron como respuesta en la búsqueda de las siguientes bases de datos: Scopus, WoS, Eric y Dialnet, y cumplían con los criterios determinados a priori basados en las necesidades del estudio. Finalmente 25 artículos configuraron la población de este meta-análisis tras haber sido sometidos un total de 2286 a riguroso análisis. Durante la investigación se consideró necesario analizar la influencia del tiempo, al que estuvo cada grupo expuesto a la metodología m-learning y las posibles diferencias entre estudios sobre idiomas u otros ámbitos en la magnitud del efecto. Los resultados obtenidos, en cuanto a la magnitud del efecto y los análisis realizados, muestran una clara influencia positiva de la metodología m-learning en el rendimiento académico de los alumnos. Por tanto, se considera congruente la implementación de la metodología m-learning en las aulas universitarias y la profundización en el estudio de su efecto explorando otros niveles y áreas de conocimiento.

This study aims to bring together the efforts made by different researchers over the last 5 years (2016-2020) regarding the analysis of the effect produced by Smartphones in formal education, specifically in university settings. In relation to the methodology followed, the phases recommended by Meca (2010) were taken as a reference. The studies included in this meta-analysis were selected through a search in the following databases: Scopus, WoS, Eric and Dialnet, and met the criteria determined a priori based on the needs of the study. The final selection included 25 articles, after a total of 2286 articles were subjected to rigorous analysis. During the investigation, the authors considered necessary to analyze (i) the influence of time of exposure of each group to the m-learning methodology and (ii) the possible differences between studies on languages or other aspects in the magnitude of the effect. In terms of the magnitude of the effect and the analyses conducted, the results show a clear positive influence of the m-learning methodology on students’ academic performance. Therefore, implementing m-learning methodology in university classrooms and to study its effect in depth by exploring other levels and areas of knowledge is considered congruent.
Museos en igualdad
Authors: Zacarés Pamblanco Amparo Teresa
Published: December 2021

En su origen los museos respondieron a la cultura de su época y a la lógica patriarcal imperante que dejaba sin visibilidad las obras de las mujeres artistas. Una situación de desigualdad que se prolongó durante siglos y que hizo que la contribución de las mujeres a la cultura y a las artes no fuera lo suficientemente conocida. Ante esto se hace preciso analizar el componente ideológico que ha dominado la historia universal del arte y que sigue obstaculizando las condiciones de distribución y exposición de las obras de las mujeres artistas en los museos, en las galerías y en los centros de arte. En este contexto, cabe destacar la participación de la campaña de arte público trasmedia #PortaldeIgualdad y la creación de la Herramienta MAV de Autodiagnóstico para la Igualdad en Museos y Centros de Arte en la que se demanda la perspectiva de género en la gestión museística como ejemplo de buenas práticas museísticas y de una cultura auténticamente democrática.
De la Praxis a la Memoria: derivas políticas en la solidaridad con Chile a través del Museo (de la Resistencia) Salvador Allende en España (1976-1991)
Authors: Lebeau Élodie , Palacios Gonzalez Daniel
Published: December 2021

El presente artículo analiza las evoluciones ideológicas que rodearon al “Museo Internacional de la Resistencia Salvador Allende”, desde su implantación en España en 1976, hasta el envío de sus obras a Chile en 1991. Tras el golpe de Estado en Chile, y como continuación del Museo de la Solidaridad (1972-1973), este “museo en el exilio” surgió como una manifestación artística de resistencia cultural contra la dictadura del general Augusto Pinochet. Pretendía apoyar la resistencia chilena desde el exterior mediante la recolección de obras y la organización de exposiciones itinerantes en los países donde se estableció. Después de haber observado su carácter internacionalista y antifascista inicial, se mostrará cómo, paralelamente a la profundización de las políticas gubernamentales de la Transición en España, la gestión del Museo cambió su significado simbólico hacia un carácter memorialista y folclórico de izquierdas. En un último punto se explicita cómo la llegada de la colección a Chile acabó de consumir la ruptura con su legado reivindicativo y de transformación social originario. El artículo ha implicado la revisión de material documental en España, Chile y Francia, con el objetivo de no documentar tan solo el proceso sino de aportar un análisis crítico sobre la deriva de la solidaridad artística con Chile, desde España en general y en particular desde la Comunidad Valenciana, así como y estancia en el Museu d'Art Contemporani Vicente Aguilera Cerni de Vilafamés.
La contribución de las cooperativas de crédito para aliviar la exclusión financiera geográfica en los espacios menos poblados. El caso de España
Authors: Carchano Alcaraz Marcos , Carrasco Monteagudo Inmaculada , Soler Tormo Francisco V.
Published: December 2021

La crisis asociada a la Covid ha puesto de manifiesto nuevamente la relevancia del sistema financiero. La pasada crisis, de carácter financiero había impactado intensamente en el sistema bancario, provocando un fuerte retroceso en la actividad crediticia, lo que, en muchos casos se ha traducido en riesgo creciente de exclusión financiera, sobre todo en aquellos territorios en retroceso demográfico. En este contexto, las cooperativas de crédito, caracterizadas por su reducido tamaño, localismo y vocación de banca de proximidad, han sufrido un deterioro patrimonial menos acusado que el resto de las entidades del sistema bancario. Además, actúan en las áreas donde la densidad de población es más baja, distinguiendo su actividad del negocio de la banca lucrativa, lo que permite paliar la menor implantación de entidades financieras, contribuyendo mitigar la exclusión financiera de carácter geográfico en estos espacios. Así, en un intento por reivindicar el papel de las cooperativas de crédito, en especial en el desarrollo de los territorios de la España Vacía, se plantea el presente trabajo con un doble objetivo: por un lado, analizar la relación existente entre sistema financiero, empleo y población, y por otro, comprobar si la presencia de las cooperativas de crédito es mayor allí donde ambos factores son más débiles, dando servicio en los espacios no atendidos por el resto de los intermediarios financieros. Para ello se presenta un estudio empírico realizado a partir de un modelo de ecuaciones estructurales mediante una técnica de mínimos cuadrados parciales para datos demográficos y de actividad financiera en 2018, donde la provincia se utiliza como unidad de análisis.
La relación entre el Tercer Sector de Acción Social y las Administraciones Públicas. Una comparativa autonómica
Authors: Díaz Velázquez Eduardo , García Campá Santiago , Mancha San Esteban Luis
Published: December 2021

El Tercer Sector de Acción Social (TSAS) se erige como un actor relevante en la coproducción de bienestar en el Welfare Mix, de forma interrelacionada con las Administraciones Públicas o, incluso, dependiente de la financiación de éstas. En los últimos años, las crisis económicas y la reconfiguración del ámbito de los servicios sociales con la creciente competencia del sector mercantil están redefiniendo el papel del TSAS en la provisión de servicios sociales. En el marco del proyecto Perspectiva Comparada del Tercer Sector de Acción Social en las Comunidades Autónomas (PECOTSAS), financiado por el Plan Estatal de Investigación del Ministerio de Economía, Industria y Competitividad (ref CSO2017-85486-P), mediante una metodología cualitativa basada en entrevistas y grupos focales a expertos, profesionales y otros actores relevantes del TSAS y de la Administración, hemos analizado de forma comparativa el encaje institucional y social del TSAS en diferentes comunidades autónomas, para explorar si existen factores diferenciales en su desarrollo dentro de cada región. Este artículo se centra en concreto en las relaciones del TSAS con las administraciones autonómicas. En particular, analiza de forma comparativa la posición del TSAS en la legislación existente sobre servicios sociales en cada comunidad autónoma, las formas de colaboración económica predominantes para la prestación de servicios y el desarrollo de programas de acción social, así como la existencia de espacios para la participación del TSAS en la toma de decisiones relacionadas con el bienestar social.
ON THE MECHANICAL RESPONSE OF A PRESSURIZED FUNCTIONALLY-GRADED CYLINDER
Authors: Lubarda Vlado
Published: December 2021

A pressurized functionally-graded cylinder is considered made of the material whose elastic moduli vary with the radial distance according to the power-law relation. Some peculiar features of the mechanical response are noted for an incompressible functionally-graded material with the power of radial inhomogeneity equal to two. In particular, it is shown that the maximum shear stress is constant throughout the cylinder, while the displacement changes proportional to 1/r along the radial distance. No displacement takes place at all under equal pressures applied at both boundaries.
COMPARATIVE ANALYSIS OF DIELECTRIC AND STRUCTURAL CHARACTERISTICS OF THE SAMPLES BASED ON POLYETHYLENETEREPHTALATE
Authors: Cerović Dragana , Dojčilović Jablan , Petronijević Ivan , Popović Dušan
Published: December 2021

Widespread use of polymeric materials from the items for daily use to electrical engineering, electronics and medical applications causes a need for their detailed examination under various external influences. Dielectric spectroscopy allows monitoring changes in the structure of polymers under various external influences. In this paper we analyzed β relaxation recorded in polymer woven structures and meshes based on polyethyleneterephtalate. Based on the results obtained, a comparative analysis of dielectric parameters and structural characteristics of the samples was done.
TEXTILE TECHNOLOGICAL PROPERTIES OF LAMINATED SILICA AEROGEL BLANKET
Authors: Prevolnik Vanja , Kraner Zrim Polona , Rijavec Tatjana
Published: December 2021

Silica aerogel blankets made from silica aerogel integrated into non-woven fabrics are superinsulative thin materials that can be also used in technical textiles and clothing. Textile technological properties of silica aerogel blanket laminated with a water vapour permeable membrane and polyester warp knitted fabric were studied. The five layers laminate had good mechanical properties, and was resistant to rubbing, was water vapour permeable, hydrophobic and oleophilic material with good thermal insulation. Laminated material is a little too heavy to be used as clothing and also a little rigid. Silica aerogel is prone to crushing during use. The laminate will be softer and more flexible after being used for a certain time. Analysed laminated silica aerogel blanket is suitable for technical textiles, such as sleeping bags, flexible protective covers such as outdoor pillows, wheelchairs pillows for winter conditions, for personal protective garments, etc.
COMPOSITION, STRUCTURE AND TEXTURAL CHARACTERISTICS OF DOMESTIC ACID ACTIVATED BENTONITE
Authors: Pеtrоvić Zоrаn , Dugić Pеrо , Аlеksić Vојislаv , Bеgić Sаbinа , Мićić Vlаdаn , Sаdаdinоvić Јаsminkа , Kljajić Nevena
Published: December 2021

Bentonites are aluminosilicate minerals which, due to their porosity, layered structure and composition have a wide application. Structural and textural characteristics of bentonite may be improved by different modification procedures. The aim of this study was to investigate compositional, structural and textural characteristics of domestic bentonite in place Gerzovo, before and after the activation with sulfuric acid. These characteristics were investigated by analytical methods, X-ray diffraction (XRD) and the method of low-temperature nitrogen adsorption (BET). Characteristics of acid-activated bentonite were compared with the characteristics of commercial active clay. The obtained results showed that the activation of bentonite with sulfuric acid leads to a significant improvement in structural and textural characteristics. Using these results it can be assumed that this bentonite will have good adsorption characteristics and can serve as an alternative in comparison with imported commercial aluminosilicate-based adsorbents.
ALKALINE PHOSPHATASE ENZYME AND LACTATE DEHYDROGENASE ACTIVITY IN URINE OF PATIENTS TREATED WITH METHOTREXATE
Authors: Vujić Tatjana , Davidović Plavšić Biljana , Uletilović Snježana , Stoisavljević Šatara Svjetlana , Predojević Samardžić Jelica , Saničanin Živko
Published: December 2021

In order study methotrexate nephrotoxicity, the activities of proximal tubule epithelial cell membrane enzymes: alkaline phosphatase (AP) and lactate dehydrogenase (LDH) were determined in 12-h-urine samples of 30 patients with lymphoblastomous leukemia. The patients were i.v. receiving 4 individual methotrexate doses of 2000 mg/m2 every 15 days followed by leucovorin as a protector. Control and methotrexate-treated group, each consisting of 30 examinees, included 4-10 years old children of both sexes. Statistically significant increase of AP and LDH activities, expressed as unuts/mmol creatinine was observed after the second therapy (p0.05) in relation to the control. Based on these results it can concluded that nephrotoxic methotrexate action is ireversible during the time period after the second applications at the level of proximal tubule epithelal cell.
STABILITY STUDY OF AMLODIPINE BESYLATE AND BISOPROLOL FUMARATE IN AQUEOUS SOLUTIONS
Authors: Kasagić Vujanović Irena , Jelić Dijana , Antunović Vesna , Jančić Stojanović Biljana , Ivanović Darko
Published: December 2021

Valuable information concerning stability of compounds can be obtained by using different media (water, hydrochloric acid or sodium hydroxide) for dissolution of active pharmaceutical substances. Furthermore, additional knowledge is gained by performing experiments at different temperatures. This research paper deals with the stability of amlodipine besylate and bisoprolol fumarate in different media at different temperatures, whereby certain conclusions are drawn. For stability assessment, chemical kinetics approach was used, and constant rate (k), half-time (t1/2) and activation energy (Ea) were used for prediction of compound stability degree. The stability of amlodipine besylate and bisoprolol fumarate were tested, both separately and in mixture, in water and in 0.01M HCl. All the investigated solutions were treated at two temperatures 25° and 70°C at the following time intervals: 0, 1 h, 24 h, 48 h and 72 h. Hydrophilic Interaction Liquid Chromatography – HILIC method, previously developed and validated, was used. On the basis of obtained results it was concluded that amlodipine-besylate was more stable in water than in acid medium, more stable in mixture rather than individually and more stable at lower temperatures. This was confirmed by the obtained values of monitored parameters: amlodipine besylate Ea = 30.68 kJ mol-1, k (25 °C) = 0.000333 mM h-1, k (70 °C) = 0.00169 mM h-1; amlodipine besylate in mixture Ea = 42,414 kJ mol-1, k (25 °C) = 1.27∙10-4 mM h-1, k (70 °C) = 0.0012 mM h-1. Based on the obtained approximate Ea value for bisoprolol fumarate in acid (59 kJ mol-1) and in water (56 kJ mol-1), bisoprolol fumarate showed excellent stability against the media in which it was studied. On the other hand, the temperature had a significant effect on the stability of bisoprolol fumarate. These results provide the relevant information about the stability of the tested active substances, and may be of importance during the development of an appropriate pharmaceutical product. A bigger influence on the stability of bisoprolol fumarate had a temperature effect.
Taste sensing and sugar detection mechanisms in Drosophila larval primary taste center
Authors: Maier G Larisa , Komarov Nikita , Meyenhofer Felix , Kwon Jae Young , Sprecher Simon G
Published: December 2021

Despite the small number of gustatory sense neurons, Drosophila larvae are able to sense a wide range of chemicals. Although evidence for taste multimodality has been provided in single neurons, an overview of gustatory responses at the periphery is missing and hereby we explore whole-organ calcium imaging of the external taste center. We find that neurons can be activated by different combinations of taste modalities, including opposite hedonic valence and identify distinct temporal dynamics of response. Although sweet sensing has not been fully characterized so far in the external larval gustatory organ, we recorded responses elicited by sugar. Previous findings established that larval sugar sensing relies on the Gr43a pharyngeal receptor, but the question remains if external neurons contribute to this taste. Here, we postulate that external and internal gustation use distinct and complementary mechanisms in sugar sensing and we identify external sucrose sensing neurons.
Constitutive deficiency of the neurogenic hippocampal modulator AP2γ promotes anxiety-like behavior and cumulative memory deficits in mice from juvenile to adult periods
Authors: Loureiro-Campos Eduardo , Mateus-Pinheiro António , Patrício Patrícia , Soares-Cunha Carina , Silva Joana , Sardinha Vanessa Morais , Mendes-Pinheiro Bárbara , Silveira-Rosa Tiago , Domingues Ana Verónica , Rodrigues Ana João , Oliveira João , Sousa Nuno , Alves Nuno Dinis , Pinto Luísa
Published: December 2021

The transcription factor activating protein two gamma (AP2γ) is an important regulator of neurogenesis both during embryonic development as well as in the postnatal brain, but its role for neurophysiology and behavior at distinct postnatal periods is still unclear. In this work, we explored the neurogenic, behavioral, and functional impact of a constitutive and heterozygous AP2γ deletion in mice from early postnatal development until adulthood. AP2γ deficiency promotes downregulation of hippocampal glutamatergic neurogenesis, altering the ontogeny of emotional and memory behaviors associated with hippocampus formation. The impairments induced by AP2γ constitutive deletion since early development leads to an anxious-like phenotype and memory impairments as early as the juvenile phase. These behavioral impairments either persist from the juvenile phase to adulthood or emerge in adult mice with deficits in behavioral flexibility and object location recognition. Collectively, we observed a progressive and cumulative impact of constitutive AP2γ deficiency on the hippocampal glutamatergic neurogenic process, as well as alterations on limbic-cortical connectivity, together with functional behavioral impairments. The results herein presented demonstrate the modulatory role exerted by the AP2γ transcription factor and the relevance of hippocampal neurogenesis in the development of emotional states and memory processes.
Working memory capacity of crows and monkeys arises from similar neuronal computations
Authors: Hahn Lukas Alexander , Balakhonov Dmitry , Fongaro Erica , Nieder Andreas , Rose Jonas
Published: December 2021

Complex cognition relies on flexible working memory, which is severely limited in its capacity. The neuronal computations underlying these capacity limits have been extensively studied in humans and in monkeys, resulting in competing theoretical models. We probed the working memory capacity of crows (Corvus corone) in a change detection task, developed for monkeys (Macaca mulatta), while we performed extracellular recordings of the prefrontal-like area nidopallium caudolaterale. We found that neuronal encoding and maintenance of information were affected by item load, in a way that is virtually identical to results obtained from monkey prefrontal cortex. Contemporary neurophysiological models of working memory employ divisive normalization as an important mechanism that may result in the capacity limitation. As these models are usually conceptualized and tested in an exclusively mammalian context, it remains unclear if they fully capture a general concept of working memory or if they are restricted to the mammalian neocortex. Here, we report that carrion crows and macaque monkeys share divisive normalization as a neuronal computation that is in line with mammalian models. This indicates that computational models of working memory developed in the mammalian cortex can also apply to non-cortical associative brain regions of birds.
Toxoplasma bradyzoites exhibit physiological plasticity of calcium and energy stores controlling motility and egress
Authors: Fu Yong , Brown Kevin M , Jones Nathaniel G , Moreno Silvia NJ , Sibley L David
Published: December 2021

Toxoplasma gondii has evolved different developmental stages for disseminating during acute infection (i.e., tachyzoites) and establishing chronic infection (i.e., bradyzoites). Calcium ion (Ca2+) signaling tightly regulates the lytic cycle of tachyzoites by controlling microneme secretion and motility to drive egress and cell invasion. However, the roles of Ca2+ signaling pathways in bradyzoites remain largely unexplored. Here, we show that Ca2+ responses are highly restricted in bradyzoites and that they fail to egress in response to agonists. Development of dual-reporter parasites revealed dampened Ca2+ responses and minimal microneme secretion by bradyzoites induced in vitro or harvested from infected mice and tested ex vivo. Ratiometric Ca2+ imaging demonstrated lower Ca2+ basal levels, reduced magnitude, and slower Ca2+ kinetics in bradyzoites compared with tachyzoites stimulated with agonists. Diminished responses in bradyzoites were associated with downregulation of Ca2+-ATPases involved in intracellular Ca2+ storage in the endoplasmic reticulum (ER) and acidocalcisomes. Once liberated from cysts by trypsin digestion, bradyzoites incubated in glucose plus Ca2+ rapidly restored their intracellular Ca2+ and ATP stores, leading to enhanced gliding. Collectively, our findings indicate that intracellular bradyzoites exhibit dampened Ca2+ signaling and lower energy levels that restrict egress, and yet upon release they rapidly respond to changes in the environment to regain motility.
Dative radial category in Old Church Slavonic and Modern Russian
Authors: Voloshina Ekaterina
Published: December 2021

In this paper, the semantic roles expressed by the Dative case in Modern Russian and Old Church Slavonic are described in terms of radial categories. The corpus data shows that the radial category of the Dative case has changed since Old Church Slavonic. The radial category in Modern Russian is smaller, and it includes fewer subcategories than attested in Old Church Slavonic. The change of the category prototype could explain the changes in the category of the Dative case. Recipient is postulated to be the prototype of the Dative case category in Modern Russian, while Direction appeared to be the best prototype for Old Church Slavonic data.
Proposal of a remote education model with the integration of an ICT architecture to improve learning management
Authors: Villegas-Ch. William , García-Ortiz Joselin , Román-Cañizares Milton , Sánchez-Viteri Santiago
Published: December 2021

University education is at a critical moment due to the pandemic generated by the Coronavirus Disease 2019. Universities, to guarantee the continuity of education, have considered it necessary to modify their educational models, implementing a transition towards a remote education model. This model depends on the use of information and communication technologies for its execution and the establishment of synchronous classes as a means of meeting between teachers and students. However, moving from face-to-face classes to online classes is not enough to meet all the needs of students. By not meeting the needs and expectations of students, problems are generated that directly affect learning. In this work, Big data and artificial intelligence are integrated as a solution in a technological architecture that supports the remote education model. This integration makes it possible to identify the state of learning and recommend immediate actions to its actors. Teachers, knowing the variables that affect academic performance, have the ability to change the components of learning or the method used. Improving learning and validating the capacity of information technologies to generate digital environments suitable for the generation of knowledge. In addition to improving the functionality of educational models and their adaptability to the new normal.
Disentangling direct and indirect effects of local temperature on abundance of mountain birds and implications for understanding global change impacts
Authors: Ceresa Francesco , Kranebitter Petra , S. Monrós Juan , Rizzolli Franco , Brambilla Mattia
Published: December 2021

Unravelling the environmental factors driving species distribution and abundance is crucial in ecology and conservation. Both climatic and land cover factors are often used to describe species distribution/abundance, but their interrelations have been scarcely investigated. Climatic factors may indeed affect species both directly and indirectly,e.g., by influencing vegetation structure and composition. We aimed to disentangle the direct and indirect effects (viavegetation) of local temperature on bird abundance across a wide elevational gradient in the European Alps, ranging from montane forests to high-elevation open areas. In 2018, we surveyed birds by using point counts and collected fine-scale land cover and temperature data from 109 sampling points. We used structural equation modelling to estimate direct and indirect effects of local climate on bird abundance. We obtained a sufficient sample for 15 species, characterized by a broad variety of ecological requirements. For all species we found a significant indirect effect of local temperaturesviavegetation on bird abundance. Direct effects of temperature were less common and were observed in seven woodland/shrubland species, including only mountain generalists; in these cases, local temperatures showed a positive effect, suggesting that on average our study area is likely colder than the thermal optimum of those species. The generalized occurrence of indirect temperature effects within our species set demonstrates the importance of considering both climate and land cover changes to obtain more reliable predictions of future species distribution/abundance. In fact, many species may be largely tracking suitable habitat rather than thermal niches, especially among homeotherm organisms like birds.
La igualdad ante las cargas públicas como criterio para evaluar la constitucionalidad de limitaciones al Derecho de Propiedad
Authors: Covarrubias Cuevas Ignacio , Díaz De Valdés José Manuel
Published: December 2021

A la luz de casos abordados por la Corte Suprema de EE.UU., el Tribunal Constitucional alemán y el Tribunal Europeo de DD.HH., este trabajo busca identificar criterios que pueden contribuir a evaluar la constitucionalidad de las normas legales que limiten el ejercicio del derecho de propiedad en virtud de estándares contenidos en la garantía constitucional de igualdad ante las cargas públicas, de modo que no respetar estos criterios de igualdad podría conducir a vulnerar el derecho de propiedad en su función social.
El problema de la legitimación pasiva en hipótesis de daños producto de la actividad en los hospitales autogestionados en red: Análisis de la sentencia de la Corte Suprema de fecha 3 de abril de 2020
Authors: Ewert Axel
Published: December 2021

El presente comentario de jurisprudencia analiza el problema de la legitimación pasiva de los Establecimientos Autogestionados en Red en aquellos casos en que la activi- dad de estos produce daños. El problema tiene su origen en que estos establecimientos no cuentan con personalidad jurídica propia, sino que corresponden a órganos funcionalmente desconcentrados del correspondiente Servicio de Salud y, por lo tanto, cuando la actividad de dichos establecimientos genera daños, surge la interrogante acerca de si el legitimado pasivo de una acción de responsabilidad es el mismo establecimiento o bien el Servicio de Salud del cual depende. En ese contexto, se analizará una sentencia de la Corte Suprema que sostuvo la legitimación pasiva de ambos organismos en la hipótesis planteada.
La justicia civil en la era digital y artificial: ¿Hacia una nueva identidad?
Authors: Pérez Ragone Álvaro
Published: December 2021

La justicia civil como marco público y privado de tutela de los derechos y en especial en el ejercicio de la jurisdicción mediante el proceso judicial se ve desafiada en sus cimientos tradicionales. La incorporación en diversos grados de intensidad de la digitaliza- ción y la inteligencia artificial (IA) tendría importantes consecuencias. Los desafíos pueden circunscribirse a: (i) la visibilidad y transparencia del proceso judicial al reducir o eliminar la presencia física del tribunal; (ii) la legitimidad de los tribunales de justicia (o de mecanismos privatizados que los subroguen); (iii) los requerimientos del debido y justo proceso en el sis- tema de justicia estatal como arbitral, en tanto derecho a una justificación razonable y trans- parente de la toma de decisiones automatizadas.
Characterization, fate and impact of ISB products from different types of crude oils: Literature review and experimental study for ISB predictive modelling and SIMA process
Authors: Blanc Philippe , Jezequel Ronan , Blondel Lucie , Le Floch Stéphane , André Silvère , Livas Benjamin , Zaouak Olivier
Published: December 2021

In situ burning (ISB) is an OSR (Oil Spill Response) technique generally not accepted as a “standard” response by most regulators. Main reluctance generally comes from the occurrence of large and dark smokes plumes as well as possible heavy burn residues likely to sink and reach the seafloor. However, ISB has been widely used during the Macondo oil spill in 2010 and highlighted as a promising operational technique. Additionally, standard OSR modeling tools do not consider ISB, as there is a lack of knowledge in the capacity to predict accurately the physico-chemical characteristics, fate and ecotoxicity, of the burn products from large varieties of crude oils.

In order to provide dispassionate arguments, we have conducted a study to gain knowledge and try to develop predictive capabilities to infer composition and fate of burn products from characteristics of starting crude oils. The study comprises both large literature review and experimental work where six crude oils of different types (along with corresponding weathered oils) were burnt, and all products quantified and analyzed (physico-chemistry), at both laboratory scale (burning bench) and pilot scale (fire platform). Additionally, ecotoxicity testing on Vibrio fischeri bacteria and Phaeodactylum tricornutum algae were conducted on crude and weathered oils, burn residues, water and soot. The fate of burn residues was also investigated through dispersibility, emulsification and biodegradability testing. The experimental work led to a very large set of data which was subject to multivariate regression statistical treatments to build predictive models. Main data investigated were burn efficiency, density, viscosity, SARA (Saturates, Aromatics, Resins, Asphaltenes) composition, n-alkanes and PAHs (polycyclic aromatic hydrocarbons) distributions in burn residues, gas emissions composition, soot' PAHs distribution in the smokes, and ecotoxicity data of burn residues, soot and water. The paper describes the main results of this study, with promising outcomes to develop predictive ISB modeling and help addressing objectively the relative impact of ISB within the SIMA process in comparison with other cleaning responses.