bluuebunny/crossref_metadata_2025 huggingface dataset:
Port Said y Alejandría a través de los expedicionarios de la fragata blindada la Arapiles (septiembre de 1871)
Authors: Pascual José
Published: June 2023

Este trabajo analiza la visita que los expedicionarios españoles de la fragata blindada La Arapiles efectuaron a la costa egipcia en septiembre de 1871. Gracias a sus relatos, podemos aproximarnos a los momentos incipientes del tráfico marítimo y comercial a través del Canal de Suez, y a una ciudad novísima, como era a la sazón Port Said, inaugurada en 1869, mientras que su estancia en Alejandría, largo tiempo poblada, nos permite observar la urbe tal y como era poco años antes de que fuera bombardeada y ocupada por los ingleses y aproximarnos al conocimiento que entonces se tenía de la ciudad antigua. Asimismo, podemos intuir la mentalidad con la que los viajeros occidentales se acercaban al Oriente, mediante toda una galería de personajes que protagonizaron la expedición como, por ejemplo, Rada, el erudito y especialista en el mundo antiguo; Moreno de la Tejera, el escritor y periodista y los militares, García de Tudela y Estrada Catoira, inmersos en el cumplimiento de una misión.Palabras clave: Viajeros occidentales, Egipto, Alejandría, Port Said.AbstractThis paper analyses the visit of the members of the expedition of the Spanish ironclad frigate The Arapiles to the Egyptian coast in September of 1871. Thanks to his stories we can approach the first stages of the commercial and maritime traffic through the Suez Canal as well as to the brand new city of Port Said, inaugurated in 1869, while its stay at Alexandria, populated from long time ago, allows to see the city such as it was some years before it was bombed and occupied by the British and to come close to the knowledgeof what in that period, was the old city. Likewise, we can have a feeling of the mentality of the travellers that where reaching the Orient through a list of celebrities that starred the expedition as in example, Rada, the erudite and specialist in Ancient World; Moreno de la Tejera, writer and journalist, and the military García de Tudela and Estrada Catoira, deeply immersed in the fulfilment of a mission.Keywords: Western travellers, Egypt, Alexandria, Port Said.
Metodologia oznaczania synergizmu między antybiotykami z zastosowaniem pasków z gradientem stężeń antybiotyków w warunkach in vitro
Authors: Guzek Aneta
Published: June 2023

W dobie oporności wielolekowej, w połączeniu z lukami w rozwoju nowych środków przeciwdrobnoustrojowych istnieją ograniczone możliwości terapeutyczne w leczeniu zakażeń wywołanych przez patogeny oporne na wiele dostępnych leków przeciwdrobnoustrojowych. Skojarzona terapia przeciwdrobnoustrojowa jest obiecującą strategią leczenia zakażeń wywołanych przez patogeny wielolekooporne. Istotne jest, aby móc w warunkach laboratoryjnych (in vitro) wykonywać testy do oceny efektywności przeciwbakteryjnej leków zastosowanych w skojarzeniach.
Designing chairs for users with high body weight
Authors: Hitka Miloš , Naď Milan , Langová Nadežda , Gejdoš Miloš , Lizoňová Denisa , Sydor Maciej
Published: June 2023

The relationship between the functional dimensions of the furniture and a user’s anthropometric dimensions is crucial for safety and functionality. The weight and dimensions of the user’s body significantly affect the functional dimensions of the furniture, especially for overweight users. This paper is focused on the concept of chair structural design, which is suitable for bariatric users, including the application of additional reinforcing structural components. Such components are expected to improve the stiffness and strength properties of the chair structure, and it provides the possibilities to a chair design with improved ergonomic parameters. To increase rigidity and reinforce the frame structure of a chair for obese users, the side stretchers, middle braces inserted under seat and armrests are used. The main goal of the different structural designs of chair frames is to minimize internal forces acting in the structural components of the chair. The finite element method (FEM) was used to determine the internal forces and stress-strain state in the structural elements of the chair, starting with the standard design of the chair frame and comparing different design variants. A synergistic effect is obtained, making the bariatric chair durable and ergonomic, without stigmatizing its users.
Evaluation of CNC routed surface quality of maple (Acer pseudoplatanus) and oak (Quercus robur L.) with different milling angles as function of grain orientation
Authors: Lungu Antonela , Gurău Lidia , Coșereanu Camelia
Published: June 2023

The study assessed CNC routing quality on maple and oak samples, using 90º V-Grooving router bits at various milling angles as function of grain orientation: 0°, 15°, 30°, 45°, 60°, 75°, 90°, and feed speeds of 3 and 6 m/min at spindle speed of 15,000 rpm. The routing quality was evaluated by roughness parameters for the V flank surfaces and by visual examination for the flanks’ edges. The change in the feed speed had no significant effect for the flanks surface quality of both species, but roughness values were considerable higher for maple samples at 90º and u=3 m/min (Rk = 23.7 µm compared to along the grain, Rk=9.83 µm for u=6 m/min) due to possible processing vibrations. The milling angle as function of grain orientation was significant in the case of oak, as the processing roughness increased with the cutting angle from 0° (Rk=11 to 13 µm) to 60°(Rk =28 to 30 µm). Fuzziness around the earlywood pores of oak was higher for the 6 m/min feed speed. A substantial increase in waviness coinciding with the annual growth areas was measured for crosscut oak samples (Wa = 34.0 µm, compared with Wa =7 .39 µm along the grain). The surface waviness of maple was not sensitive to the variation in the cutting angle or feed speed (Wa was around 3 to 4 µm). For the flank edges, the best visual option was found for cutting along the wood grain and the worst was for 60º, which caused biggest ruptures and especially for the 3 m/min feed speed, for both species.
Biosorption of Reactive Black 5 from aqueous solution using acid-treated biomass from potato peel waste
Authors: Samarghandy Mohammad Reza , Hoseinzade Edris , Taghavi Mahmood , Hoseinzadeh Saman
Published: June 2023

The goal of this study was to survey the feasibility of the biosorption of Reactive Black 5 (RB5) from aqueous solutions using biomass prepared from potato peel waste. Adsorption isotherms were constructed, and the kinetics of dye adsorption were studied. Langmuir and Freundlich isotherms were constructed, and pseudo-first order, pseudo-second order, and modified pseudo-first order kinetic models were studied. Maximum adsorption (85.5%) was observed at a pH of 3, and uptake decreased with increasing pH. The biosorption of RB5 increased with increasing contact time and reached equilibrium after two hours. RB5 removal efficiency decreased with an increase in the initial dye concentration, but the uptake of dye increased. Adsorption data conformed to the Langmuir isotherm model and pseudo-first order kinetics.
Effect of pressure duration on physical, mechanical, and combustibility characteristics of laminated veneer lumber (LVL) made with hybrid poplar clones
Authors: Kurt Ramazan , Cil Muhammet , Aslan Kagan , Cavus Vedat
Published: June 2023

Experimental eight-ply laminated veneer lumbers (LVLs) from rotary peeled I-214 (Populus x Euramericana) and I-77/51 (Populus deltoides)fast growing hybrid poplar clones were successfully manufactured using three different press durations (18, 24, and 30 min) with a melamine urea formaldehyde (MUF) adhesive. The effect of press durations on LVLs’ selected physical, mechanical, and combustibility characteristics were determined. The results showed that press duration affected dimensional stability (thickness swelling and water absorption), modulus of rupture, and/or compression strength parallel to grain, depending on the clone types. Improvement in dimensional stability and some mechanical properties of LVLs can be achieved by proper curing of the MUF adhesive. On the other hand, the press durations did not affect oven-dry densities, modulus of elasticity, and the combustibility (weight loss after completion of the test). For improved physical and mechanical properties, up to a 30 min press duration can be recommended. This is necessary for LVLs when they are to be used under conditions where water and/or high humidity is present.
The type and degree of decay in spruce wood analyzed by the ultrasonic method in three anatomical directions
Authors: Reinprecht Ladislav , Hibký Martin
Published: June 2023

Norway spruce specimens 50x30x30mm with initially determined ultrasonic characteristics in the longitudinal, radial, and tangential directions were subjected to bio-attacks with the brown-rot fungi Serpula lacrymans, Coniophora puteana,or Gloeophyllum trabeum, and the white-rot fungus Trametes versicolor, respectively. Bio-attacks lasted 4, 8, 12, or 16 weeks. Decreases of the ultrasonic wave velocities (Dc) and the dynamic modulus of elasticity (DMOEd) depended more or less closely on the enlarged degrees of rot in the spruce wood, and as the dynamic modulus of elasticity decreased approx. 1.7 to 2.3 times more than corresponding weights (Dm from 2.01 to 42.35%) or 2.1-3.4 times more than corresponding densities (Dr from 2.42 to 26.63%). Two sample t-test analyses of slopes “a” in the linear regressions Dc or DMOEd = a.(Dm) or a.(Dr) showed that drops of the ultrasonic and elastic characteristics of wood having the brown rot were not influenced by the fungus species. On the other hand, the velocity of ultrasonic waves in the longitudinal direction and the dynamic modulus of elasticity appeared to be suitable for distinguishing the brown rot from the white rot at known decreases of wood density. The anatomical direction of wood was a significant factor only for the white rot, when approx. 2-times higher decrease of the ultrasonic wave velocities was determined in the radial and tangential directions compared to the longitudinal one.
Phenolic extractives with chemotaxonomic significance from the bark of Paulownia tomentosa var. tomentosa
Authors: Si Chuan-Ling , Lu Yi-Yuan , Qin Pan-Pan , Sun Run-Cang , Ni Yong-Hao
Published: June 2023

Chemotaxonomy, also known as chemosystematics, can be regarded as a hybrid science which can classify plants based on their unique extractives (secondary metabolites). In this work, we investigated the chemotaxonomic marks of Paulownia species by studying the extractives of Paulownia tomentosa (Thunb.) Steud. var. tomentosa, a hardwood species widely used in Chinese medicine and pulping industries. Nine phenolic extractives, including two flavonoids (naringenin (1), and quercetin (2)), two phenolic acids (cinnamic acid (3), and gallic acid (4)), and five phenylpropanoid glycosides (cistanoside F (5), acteoside (6), isoacteoside (7), campneoside II (8), and isocampneoside II (9)), were isolated from the n-BuOH soluble fraction of P. tomentosa var. tomentosa bark, by repeated sephadex LH-20 open column chromatography coupled by Thin Layer Chromatography detection. The structures of the phenolic extractives were elucidated and characterized on the basis of their spectroscopical data and physiochemical properties. This was the first time to report the nine extractives from P. tomentosa var. tomentosa bark. Our chemotaxonomic analysis demonstrated that phenylpropanoid glycosides in P. tomentosa var. tomentosa were interesting and phenylpropanoid glycosides may possibly be considered as a useful chemotaxonomic marker within the species of Paulownia.
Material properties of epoxy-reinforced biocomposites with lignin from empty fruit bunch as curing agent
Authors: Abdul Khalil H. P. S. , Marliana M. M. , Alshammari Turki
Published: June 2023

Lignin was obtained from black liquor samples from soda-AQ pulping of oil palm empty fruit bunch (EFB) fiber. Oil palm EFB reinforced epoxy composite samples with varying lignin content of 15, 20, 25, and 30% as curing agent were prepared. The chemical structures of lignin were characterized by FT-IR, and CHN analysis. FT-IR and CHN analysis confirmed structural changes of epoxy resin after use of EFB-lignin as curing agent in epoxy resin. Thermal analysis of composites was carried out by thermogravimetric analysis (TGA). The TGA graphs showed that crosslinking of epoxy and lignin as curing agent may induce relatively high-chain rigidity in the polymer and may result in an enhanced thermal stability of the EFB/lignin-epoxy composite systems. The mechanical properties (tensile, flexural, and impact behavior) and physical properties (water absorption) of the composite samples were evaluated. Mechanical properties of epoxy composites cured with 25% lignin were found to be higher than that of the composite prepared from a commercial curing agent. Scanning electron micrographs showing tensile fracture of the composites showed evidence of good fiber–matrix interaction, induced by the curing agent.
Retting process of some bast plant fibers and its effect on fibre quality: A review
Authors: Md. Tahir Paridah , Ahmed Amel B. , SaifulAzry Syeed O. A. , Ahmed Zakiah
Published: June 2023

Retting is the main challenge faced during the processing of bast plants for the production of long fibre. The traditional methods for separating the long bast fibres are by dew and water retting. Both methods require 14 to 28 days to degrade the pectic materials, hemicellulose, and lignin. Even though the fibres produced from water retting can be of high quality, the long duration and polluted water have made this method less attractive. A number of other alternative methods such as mechanical decortication, chemical, heat, and enzymatic treatments have been reported for this purpose with mixed findings. This paper reviews different types of retting processes used for bast plants such as hemp, jute, flax, and kenaf, with an emphasis on kenaf. Amongst the bast fibre crops, kenaf apparently has some advantages such as lower cost of production, higher fibre yields, and greater flexibility as an agricultural resource, over the other bast fibres. The fibres produced from kenaf using chemical retting processes are much cleaner but low in tensile strength. Enzymatic retting has apparent advantages over other retting processes by having significantly shorter retting time and acceptable quality fibres, but it is quite expensive.
Study of gene patterns for Rifampicin in LPA, which were discordant in CBNAAT in the state of Telangana, India
Authors: Chittiboyina Sumalata
Published: June 2023

Introduction: Among the first line drugs used for treatment of Drug Sensitive Tuberculosis, Rifampicin plays a crucial role. Hence it is important to know the resistance of Rifampicin using molecular technologies like CBNAAT and line probe Assay. However, a diagnostic dilemma occurs when there is discordance in result of rifampicin resistance at periphery and in higher laboratories like Intermediate Reference Laboratory (IRL). Aims and objectives: To study various patterns of Gene for rifampicin that is demonstrated in probes of Line Probe Assao for First line –Line Probe Assay, which showed discordance with CBNAAT at periphery. Methodology: A retrospective observational study was conducted from 1st January 2021 to 31st December 2021 for all those samples which showed rifampicin discordance. Result: A total of 203 results were found discordant in Rifampicin. The resolution for rifampicin discordance is resolved using the NAAT facility at (IRL). Most of the resolution occurred in concurrence with result of Rifampicin in field. Eight of them gave inconclusive results (MTB not detected) Conclusion: It is very important to understand the gene patterns in LPA for providing appropriate regimen to the patients.
Human blood circulation model based on flow laws of intensity and continuity in relation to earth’s surface gravity
Authors: Endre Nagy Tibor
Published: June 2023

With the help of the physical laws of flow, it is possible to describe the entire human blood circulation. However, this requires precise knowledge of the individual parameters. Within this, the determination of the flow rate included in the law of continuity is essential. Together with the data of the heart and circulation examination procedures, in order to establish the average human blood circulation, an intermediate velocity value must be selected, which is located in the middle between the two extreme velocities of the blood circulation. Another important factor from the point of view of the structure and operation of the model is the value of the earth's surface gravity. By finding the average flow speed value and using ‘g’, a torus-shaped circulation can be created, which can actually reflect the circulation conditions. By further refining the model, the pulmonary and systemic circulations can be separated and a ‘folded figure eight’ model can be formed. This realistically reflects the different sizes, flow and pressure conditions of the two blood circulations, as well as the work of the left and right sides of the heart.
RMS-R3 – the system for monitoring the region of interactions and background at the LHCB experiment (CERN)
Authors: Chernyshenko S.B. , Dobishuk V.M. , Okhrimenko O.Yu. , Alessio F. , Schindler H. , Kyva V.O. , Pugatch V.M. , Corti G.
Published: June 2023

The upgraded Large Hadron Collider beauty (LHCb) detector will provide data taken in Run3 at the instantaneous luminosity of proton-proton collisions increased to 2⋅1033 cm-2s-1 at energies of up to 14 TeV. To ensure the safe operation of the experiment, a new beam and background Radiation Monitoring System (RMS-R3) was built. RMS-R3 is based on metal-foil detector technology developed at the Institute for Nuclear Research, National Academy of Sciences of Ukraine (Kyiv, Ukraine). The system comprises four detector modules with two sensors in each. Their frequency response is proportional to the flux of incident charged particles. The modules are located around the beam pipe at a distance of 2.2 m from the interaction point. The results measured during the Run3 in 2022 testify to the reliable operation of the system. Applying the asymmetry method, high-accuracy data were obtained on the localization of the interactions region and the beam and background contribution.
Wear resistance of sensors based on surface plasmon resonance phenomenon
Authors:   V. Lashkaryov Institute of Semiconductor Physics, NAS Ukraine 41, prosp. Nauky, 03680 Kyiv, Ukraine, Fedorenko A.V. , Kachur N.V. ,   V. Lashkaryov Institute of Semiconductor Physics, NAS Ukraine 41, prosp. Nauky, 03680 Kyiv, Ukraine, Maslov V.P. ,   V. Lashkaryov Institute of Semiconductor Physics, NAS Ukraine 41, prosp. Nauky, 03680 Kyiv, Ukraine
Published: June 2023

Surface plasmon resonance is used for detecting and measuring various analytes characteristics by sensitive elements in sensor devices. At this, the problem of wear of the sensitive elements, contacting with gaseous and liquid environments whose characteristics are measured, arises during operation of sensor devices based on the surface plasmon resonance phenomenon. Wear of a surface gold nanolayer may be caused by various factors such as maintenance (cleaning before measurements), chemical reactions and abrasiveness of the environment. This problem becomes particularly significant when suspensions are measured. Solid particles in the suspensions have abrasive properties, which leads to modifications of the surface, reduction of the thickness and damage of the sensitive gold layer. As a result, more frequent replacements of sensitive elements are required significantly increasing the measurements cost. In this paper, influence of water suspensions of an optical polishing powder “Polarite” on the wear and the associated changes of the characteristics of a sensitive element is investigated. The need to find solutions of the problem of improving its wear resistance is highlighted.
Pembelajaran Bahasa Arab Berbasis Pendekatan Realitas Sosial (Analisis Kebutuhan di Ma’had Al-Jami'ah UIN Jakarta)
Authors: Taqi Anas Zein , Abby Muhammad
Published: June 2023

Abstrak: Penelitian ini bertujuan untuk mengevaluasi efektivitas pembelajaran Bahasa arab berbasis pendekatan realitas sosial di Ma’had Al Jamiah dengan fokus pada mahasantri. Pendekatan ini menempatkan mahasantri sebagai subjek belajar aktif dan mengintegrasikan konteks sosial yang sesuai dengan kebutuhan mahasantri dalam mempelajari Bahasa arab. Desain penelitian yang digunakan adalah penelitian kualitatif dengan pendekatan studi kasus. Data dikumpulkan melalui wawancara dengan guru Bahasa arab dan mahasantri, serta observasi kelas. Hasil penelitian menunjukan bahwa kebutuhan mahasantri dalam mempelajari Bahasa arab meliputi penguasaan kosakata, kemampuan maharah kalam dan pemahaman budaya arab. Selain itu, mahasantri juga membutuhkan lingkungan pembelajaran yang kondusif dan dapat mengintegrasikan konteks sosial dalam pembelajaran Bahasa arab. Berdasarkan hasil penelitian disarankan agar pengembangan kurikulum pembelajaran Bahasa arab dilakukan dengan memperhatikan kebutuhan mahasantri yang teridentifikasi dalam penelitian. Selain itu, guru Bahasa arab perlu meningkatkan keterampilan dan pengetahuan dalam mengintegrasikan konteks sosial dalam pembelajaran Bahasa arab. Abstract: This study aims to assess the effectiveness of learning Arabic based on the social reality approach in the university's preparation with a focus on female students. This approach establishes students as active teaching materials and integrates the social context that suits students' needs in learning Arabic. The design of the research used is qualitative research with a case study approach. The data were collected through interviews with Arabic language teachers and students, as well as class notes. The results showed that students' needs for learning Arabic include mastery of vocabulary, speech skill skills and understanding of Arabic culture. In addition, Mahasantry also needs a favourable learning environment and can integrate social context into Arabic language learning. Based on the results of the research, it is suggested that the Arabic language learning curriculum be developed taking into account students' specific needs in the research. In addition, Arabic language teachers need to improve their skills and knowledge in integrating social context into Arabic language learning.
Prospects of using the tourism potential of the liberated territories from the point of view of ecotourism
Authors: Dargahov Vuqar S. , Mammadov Qoshqar V. , Nuriyeva Intizar F. , Ahmadov Rashad I.
Published: June 2023

The article analyzes the current situation and dynamics of ecotourism in Azerbaijan, the role of national parks in the development of this sector, and the possibilities of using natural and cultural heritage resources for ecotourism. The growing demand for ecotourism on the international tourism market is based on the joint use of the existing potential of natural and cultural heritage, which implies its implementation on the liberated territories. The article shows the importance of ecotourism products offered by Azerbaijan on the international tourism market, especially using the potential of national parks. The potential of natural heritage prevails in the organization of ecotourism corridors. Offering tourists new ecotourism routes increases their attractive- ness. The dynamic growth in the number of people using these ecotourism corridors has led to the proliferation of picnic and camping areas in natural areas. The authors have considered the possibilities of using the tourism potential of the vacated lands for ecotourism, eco-cultural heritage tourism, examined the peculiarities of the areas where this type of tourism is spreading and classified them. Ec-otourism routes are offered in the region with guidelines for the joint use of natural and cultural heritage. It has been proven that the strategy of transforming occupied territories into green energy zones and planning smart settlements in harmony with nature contribute to the development of ecotourism. At the same time, it was noted that this encourages the development of alternative types of tourism in recreation areas for the joint use of natural, cultural and ethno-cultural heritage in terms of sustainable tourism. The authors have demonstrated the possibilities of opening new ecotourism corridors in the region, the prospects for their marketing, identifying new destinations and reducing the impact of negative factors on the environment in order to support the development of sustainable tourism.
Intensification of oil production in long-term developed offshore fields
Authors: Kаrimov Vagif M. , Sharifov Jafar J. , Zeynalova Sevil A.
Published: June 2023

Reasonable allocation of operational facilities in the context of multilayered reservoirs is the foundation of all scientific and practical work on the development of petroleum fields. The parameters of deposits are subject to changes over the course of development, and therefore the previously identified system of objects should be updated periodically. This is especially true for offshore multilayered fields, mining which is time-limited due to corrosion of hydraulic structures and high costs for their renewal. In this regard, the rate of using offshore deposits should be quite high not only at the initial stages, but also remain so in subsequent mining periods. Maintaining a high rate of mining is often associated with high material costs (drilling new wells to compact the well network, applying new methods of enhanced oil recovery, etc.), which is not economically viable for the fields in long-term operation. As the practice of mining multilayered fields in Azerbaijan shows, the enlargement of objects allows compacting a mining network while maintaining the total number of wells for a field. At the same time, average daily oil production rates significantly increase as a result having included capacities of contiguous objects. The research aimed at identifying similarities or differences between adjacent horizons of the section of multilayered deposits. Based on the delineated boundaries, there are possibilities of their joint operation as one object, separate or simultaneous-separate operation of wells under appropriate technical conditions. As a result of such measures, all the wells are used rationally and the development rates are increased without additional capital investment. Section of objects of the 3rd tectonic block of the Neft Daşları offshore field, confined to the Apsheron archipelago of the South Caspian Depression (SCW). The Rodionov’s method was used for a substantial and reliable identification of stratigraphic boundaries. Preliminarily, based on averaged data on 11 parameters, we calculated ꭓ2g:m critical value at 95% significance, corresponding to m=0.05, which is used to assess the state of boundaries between the horizons. Then, by implementing software, the values for the boundaries of adjacent objects were calculated, comparing which with the critical value allowed for a conclusion about possible joint or separate mining of those productive strata. As a result of the implementation of the corresponding program, the clarity of the boundaries between the objects of the 3rd tectonic block of the offshore Neft Dashlari field was determined. The need for joint exploita- tion of horizons VII and VIIa, KS1 and KS2, as well as KaS1 and KaS2 horizons has been determined, which would optimize the mining of the field and is economically feasible.
Geodiversity, geological heritage and renewal of the network of geosites of the Dnipropetrovsk region
Authors: Manyuk Volodymyr V. , Maniuk Vadym V.
Published: June 2023

This paper is focused on the relatively new terms in the Earth Sciences – geodiver- sity, geological heritage, geoconservation, geosites, geoparks – and their practical usage in Ukraine. The diversity of geological processes that have occurred in Dnipropetrovsk Oblast, its structural-tectonic position, and the long complex history of its development, since the Precambrian until the Quaternary Epoch, combined with a large amount of natural and mining-exposed outcrops, has made it rich in various objects of geological heritage. The article gives a brief analysis of history of how the Oblast’s objects of geoecological heritage have been provided with an official state-protected status and examines those with promising natural geological monuments (geosites) that require protection. We emphasize the problem of how little attention the government nature-protection organizations of Ukraine are paying to the necessity of preserving the geological heritage, despite all positive changes in its protection at international level, including establishment of European Association for the Conservation of Geological Heritage, and a steadily growing UNESCO-supported movement of establishing geoparks, etc. We provide a qualitative and quantitative assessment of the geosites and their types according to the modern classification. We recommend analyzing a possibility of including one of the promising objects that is located in the Dniprovi Porohy Regional Landscape Park to the European Register of Geological Heritage. The paper presents the results of geological monitoring, carried out in Dnipropetrovsk Oblast after publication of the book Geosites of Ukraine, which increased the fund of promising geosites up to 70. According to the criteria by which geosites are chosen, we determined 4 geological monuments that correspond to the state protection level. Most of the objects of local-significance require further field studies, and after examination some of them were found to deserve protection as geosites of national significance. Each of the geological relics from the list, objects which are proposed for the first time, has been given a preliminary characteristic consisting of a geosite’s location, stratigraphical po- sition, tectonic structure, lithological or petrographic composition of the rocks, protected status of the relic.
El portafolio digital utilizado en la evaluación de la clínica de odontología en la universidad de Costa Rica (UCR): reporte de una experiencia
Authors: Maroto Marín Orlando
Published: June 2023

En este artículo se exponen los resultados de una experiencia sobre el uso de la herramienta del portafolio digital como parte de la evaluación de la Clínica de Restaurativas II del quinto año en la Facultad de Odontología de la Universidad de Costa Rica (UCR) y durante un curso en el segundo semestre del año 2011; se explican algunos de los fundamentos en el uso de esta herramienta y los detalles de su diseño y elaboración; al respecto, cada estudiante elaboró un portafolio sobre sus tratamientos en la clínica, tomando en cuenta los aspectos solicitados por el docente a través de una guía; además, la percepción de los participantes, un total de seis, y del docente involucrado en la experiencia, manifestaron su utilidad como una herramienta que fomenta la autoreflexión sobre el aprendizaje y, a la vez, obtener una bitácora de todos los procesos que constituyen un tratamiento odontológico restaurativo. Las tareas que componen cada tratamiento pudieron constatarse a través de imágenes, con las que el docente pudo identificar el cumplimiento de los requerimientos de cada proceso. La retroalimentación resultó valiosa para el análisis de la docencia clínica.
Sappho fr. 1: A Νew interpretation
Authors: Papadimitropoulos Loukas
Published: June 2023

My purpose in this article is to propose a new reading of Sappho fr. 1 by suggesting that the poetic “I”, in fact, intends to rupture her ties with the past and to break her previous erotic habits by asking from the goddess of love to assist her in a relationship that will prove to be permanent and stable this time instead of her multiple and rather casual affairs that had thus far predominated in her love life.
Texture Analysis of Citrus Leaf Images Using BEMD for Huanglongbing Disease Diagnosis
Authors: Sumanto Sumanto , Buono Agus , Priandana Karlisa , Paruhum Silalahi Bib , Sri Hendrastuti Elisabeth
Published: June 2023

Plant diseases significantly threaten agricultural productivity, necessitating accurate identification and classification of plant lesions for improved crop quality. Citrus plants, belonging to the Rutaceae family, are highly susceptible to diseases such as citrus canker, black spot, and the devastating Huanglongbing (HLB) disease. HLB, caused by gram-negative proteobacteria strains, severely impacts citrus orchards globally, resulting in economic losses. Early detection and classification of HLB-infected plants are crucial for effective disease management. Traditional approaches rely on expert knowledge and time-consuming laboratory tests, hindering rapid detection. This study explores an alternative method using the BEMD algorithm for texture feature extraction and SVM classification to improve HLB diagnosis. The BEMD algorithm decomposes citrus leaf images into Intrinsic Mode Functions (IMFs) and a residue component. Classification experiments were conducted using SVM on IMF 1, IMF 2, and residue features. The residue component provided the most outstanding level of classification accuracy, reaching 77% for two classes, 72% for three types, and 61% for four classes. In two categories, IMF 1 performed at a 72% accuracy rate, and in four other areas, it performed at a 51% accuracy rate, making it competitive. IMF 2 demonstrated lower accuracy, ranging from 43% for three classes to 57% for two categories. The findings highlight the significance of the image residue component, outperforming IMF features in HLB classification accuracy. The BEMD algorithm coupled with SVM classification presents a promising approach for accurate HLB diagnosis, surpassing the performance of previous studies using GLCM-SVM techniques.
A shared understanding of good writing?
Authors: Clarkson Rebecca
Published: June 2023

This qualitative study explores how writing is conceptualised by teachers within the context of the primary National Curriculum and statutory writing assessment in England. The 10 participating teachers were drawn from nine primary schools and were interviewed about writing and writing assessment in year 6. Ivanic’s discourses of writing were used as the basis of a thematic analysis framework, which focussed on teachers’ perspectives and opinions. Findings showed that reference to the creative and skills discourses were most dominant within the teachers’ viewpoints; however, they also showed alignment to other discourses. Many of the teachers’ views were at odds with the National Curriculum and statutory writing assessment and this is discussed in relation to the tensions and conflict this created in pedagogy, attitudes, and assessment.
Revisión de la segunda fase de «capitalismo artístico» del sociólogo Gilles Lipovetsky (1950-1980). Antecedentes y desarrollo de la democratización y propagación de la llamada «sociedad de la abundancia», y esbozo de la tercera fase de «capitalismo artístico»
Authors: Poppe-Mujica Fátima
Published: June 2023

El presente artículo pretende esbozar los planteamientos del sociólogo Gilles Lipovetsky en torno a la denominada «segunda fase de capitalismo cultural». El momento histórico, fechado entre la década de los cincuenta y los años ochenta, se caracteriza por la propagación del con- sumo de masas y la expansión de las industrias culturales. Los antecedentes de esta etapa, la «primera fase de capitalismo cultural », se remontan a 1850 y se extienden hasta la segunda guerra mundial. Desde esta primera etapa, revisaremos los hechos que dieron lugar a la pro- pagación y democratización del consumo, para finalmente analizar los principales postulados de la «tercera fase de capitalismo cultural», vigentes hasta nuestros tiempos.
Leiomyoma of Kidney
Authors: R Vishnu Karayil , Bhaskarashenoy Mini , Sukumaran Geetha
Published: June 2023

Renal leiomyomas are rare benign mesenchymal tumors of kidney that affect adults of second to sixth decade. They can present as small asymptomatic multifocal lesions that are identified only in autopsy, or as large solitary lesions that cause pain and abdominal distention. Histomorphologically it appears exactly like its counterpart in other soft tissues. Differentiating renal leiomyoma from the lipid-poor angiomyolipoma is difficult by morphology, hence immunohistochemical studies are recommended. The case described is that of a female patient aged 74 years with a small solitary lesion in right kidney, who presented with history of pain and abdominal distention. She underwent wedge resection, histopathologically and immunohistochemically diagnosed as renal leiomyoma.
Uma Ferramenta para Tomada de Decisão Gerencial em Economias Emergentes, Comportamento Assimétrico de Custos: Evidências do Equador
Authors: Aguirre-Quezada Juan Carlos , Duque-Espinoza Gabriela , Córdova-León Fernando , Sigüencia-Muñoz Adrián
Published: June 2023

Setores de negócios podem ser afetados por mudanças em seus níveis de atividade. Por essa razão, a administração necessita de ferramentas que permitam mostrar o impacto na sua rentabilidade. Foi analisado o comportamento assimétrico de custos das empresas pertencentes aos setores econômicos de produção de bebidas e processamento de carne no Equador para o período entre 2012 e 2018. Foram estudadas 291 empresas que apresentaram atividade. Para o estudo dos custos fixos, foram definidas 3 variáveis de análise: receitas operacionais, custos e despesas totais e custos e despesas com pessoal, às quais foram aplicadas quatro técnicas de estudo diferentes. As diferentes técnicas de análise mostram resultados consistentes e robustos, com exceção da estimativa usando dados em painel no setor de carnes. Os resultados do estudo mostram um comportamento assimétrico dentro dos custos, o que sugere uma incapacidade das empresas equatorianas de reduzir seus custos devido à queda de suas receitas, ao passo que, quando suas receitas aumentam, também aumentam seus custos; um fato que coincide com as evidências recentes encontradas em todo o mundo. Essa assimetria pode ser explicada por fatores como rigidez regulatória ou expectativas de recuperação rápida dos negócios.
Artificial Intelligence Applied to Assess Perceptions of the Quality of E-Commerce Logistics: Case Study of Rio de Janeiro
Authors: Sucena Marcelo Prado , Cury Marcus Vinicius Quintella
Published: June 2023

The COVID-19 pandemic imposed many market changes, driven partially by new consumer needs. In the electronic commerce field, changes occurred in parallel to an upsurge in demand, directly impacting logistics service quality. Within that context, this paper seeks a way of assessing the quality of e-commerce logistics, based on end-customer perceptions at the close of the purchasing cycle. The objective is thus to develop a mathematical model based on the artificial intelligence precepts that can interpret qualitative expressions captured through a questionnaire. Such values form partial indexes and the E-Commerce Logistics Quality Index (IQLE). After processing 180 records, it was noted that three of the seven analyzed attributes scored below 5.0, denoting some concern, but also opening up opportunities for improvement and the development of marketing solutions.
A Influência da Cultura no Comportamento de Compra por Impulso: uma Revisão Sistemática da Literatura
Authors: Bashar Abu , Singh Shalini , Pathak Vivek Kumar
Published: June 2023

A cultura desempenha um papel de compra significativo na formação de diferentes aspectos do comportamento do consumidor, como comportamento de compra racional, por impulso e compulsivo. A compra por impulso é um dos fenômenos predominantes que afetam significativamente a receita de vendas das empresas. Este estudo tem como objetivo desvendar a interação entre fatores culturais e o comportamento de compra por impulso. Para esta revisão sistemática da literatura, 112 artigos significativos foram examinados para entender a relação entre vários aspectos da cultura e o comportamento de compra por impulso em contextos online e offline. Uma investigação mais aprofundada da compra por impulso no contexto intercultural ajuda a entender e classificar diferentes perspectivas teóricas para estudar o comportamento de compra por impulso e os fatores culturais. Este estudo oferece implicações práticas para profissionais de varejo e estrategistas de comércio eletrônico para projetar e implementar campanhas de marketing interculturais viáveis. Pesquisadores acadêmicos também podem entender as lacunas de pesquisa e contribuir ainda mais para a compreensão da compra por impulso intercultural.
Estágios do Ciclo de Vida e Maturidade da Dívida em Empresas Brasileiras Listadas
Authors: Bregonci Leonardo Valter , Marques Vagner Antônio , Pinto Bruno Magri Magalhães , Amaral Hudson Fernandes
Published: June 2023

Este trabalho analisou a associação entre os Estágios do Ciclo de Vida da Firma (ECVs) e a Maturidade da Dívida (MD).O estudo aprofunda as discussões sobre estrutura de capital a partir da análise do efeito dinâmico dos ECVs associados à MD das empresas brasileiras.A amostra foi composta por dados trimestrais de 370 empresas (não financeiras) brasileiras listadas no período de 2010 a 2019. Os dados foram analisados por meio da estatística descritiva, testes de diferenças entre as médias e análise de regressão com dados em painel. Os resultados demonstraram uma MD associação com os ECVs, seguindo um formato de U invertido. Observou-se que o estágio de Maturidade afeta positivamente a MD, contudo, à medida que as empresas transitam em direção ao estágio de Turbulência e Declínio, a MD sofre reduções sucessivas. Os achados são relevantes por proporcionarem insights para pesquisas futuras e apresentarem potencial de contribuição para gestores, conselheiros de administração, comitês de crédito e provedores de capital em geral na análise de crédito das empresas, gestão de riscos e concessão de recursos.
“One is not Born, but Rather Becomes, a Woman”: Impressions of Women on the Career in Agribusiness and its Spaces
Authors: Berlato Heliani , Andretta Danilo , Fernandes Thais
Published: June 2023

Studies on gender discrimination and women’s careers in organizations reinforce how much women are silenced in their speech, undermined in their skills, and paid less than men. However, there is little research on this topic in the context of agribusiness. In this sense, the objective of this study was to understand how gender discrimination is seen by women graduating from agricultural sciences programs. As a methodology, a questionnaire was applied and 315 respondents answered, and a Factor Analysis and, later, a Cluster Analysis were carried out. Five factors were identified, and, from that, two clusters were defined, called “maintainers of the patriarchal system” and “aware of protagonism”. Both clusters demarcate tensions about how women see discrimination and experience the multiple unfoldings of sexist behaviors and attitudes that permeate their career pathways in agribusiness.
Smart Waste Bin Monitoring in Municipal Based on IOT for Clean City
Authors: Poddar Sreya , Dutta Tisa , Chowdhury Sunando , Mukherjee Soumyadeep , Mukherjee Samprikta , Kumar Das Manab
Published: June 2023

Rapid increasing urbanization and increasing population all over the world, there is a dynamic increase in the amount of waste disposal has become a matter of concern, and diseases like malaria, dengue, and cholera are caused due to overflow of garbage which contains rotten things which
form foul smell and burning things that cause air pollution to the environment. As a result of this we human beings are sufferers, So, we need to maintain this worst scenario and we need to keep a track of the garbage bin so that it will be cleaned in the proper interval of time. So, we are
implementing this project which will identify the waste by checking its humidity and temperature and will also check the level of the garbage bin so that it doesn't overflow and pollute the environment. In this project the garbage level in each bin is monitored using ultrasonic sensors present
in every bin, rotten and burning elements or any such abnormal situation that arises will be identified by the Gas sensor and DHT11 sensor. The Gas, ultrasonic sensor, and Humidity sensor will read the data and will send it to the Cloud server and then the Municipal Control room will be able
to monitor the information from the Cloud server through a GUI interface. When more than 70 percent of the garbage bin is filled, or any situation mentioned above arises the buzzer will give the indication. The system is driven by a microcontroller- ESP-32 which is working as the brain of
the operation, and it is programmed using Embedded C. All the devices and Cloud Server plays a key role to implement the project.
ENHANCING PERFORMANCE OF BIODIESEL-HYDROGEN BLENDS OPERATED DI DIESEL ENGINE USING VARIABLE INJECTION TIMING
Authors: Syed Ahmed , Ali Syed Mughees
Published: June 2023

The study aimed to investigate the effect of injection timing (IT) on the combustion, emission, and performance characteristics of a single-cylinder, four-stroke, direct injection (DI) diesel engine. The engine was run on different fuel blends, namely, pure diesel, diesel blended with 20% mahua oil methyl ester (B20) with three hydrogen flow rates of 20, 22.5, and 25 liters per minute (lpm). The experiment was carried out at a rated speed of 2000 rpm. Four different injection timings (ITs) were applied, namely, 19°, 23°, 27°, and 31° bottom top dead center (BTDC), relative to the standard IT of 23° BTDC. The results showed that the optimal IT was 27° BTDC for B20-hydrogen (22.5 lpm) dual-fuel mode operation. This condition delivered the highest brake thermal efficiency (BTE) between 24.4 and 34.3% , the lowest brake-specific fuel consumption (BSFC) between 0.25 and 0.41 kg/KWh, and the minimum unburnt hydrocarbon (HC) emissions between 8 and 32 ppm, and carbon-monoxide (CO) emissions ranging between 0.002 and 0.389% . However, the concentration of nitrogen-oxides (NOx) emissions was slightly increased, ranging between 24 and 53 ppm compared to B20. Further modifications in the IT resulted in decreased brake thermal efficiency ranging between 13 and 31% , increased hydrocarbon emissions between 25 and 28% , and increased CO emissions between 70 and 96% for both 4° BTDC advancements and retardations. Moreover, both modifications reduced NOx emissions by 8-19% . Hence, based on this study's findings, employing an IT of 27° BTDC for 22.5 Ipm of hydrogen with a B20 dual-fuel mode of operation for the DI diesel engine to achieve optimal performance, combustion, and emission characteristics is recommended.