bluuebunny/crossref_metadata_2025 huggingface dataset:
Colligative properties of various liquid blends vs. Temperature under confined space effects in pores of different adsorbents
Authors:   Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine, Gun’ko V. M. , Turov V. V. ,   Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine
Published: February 2024

The temperature and interfacial behaviors of individual and mixed liquids are of importance from a practical point of view because changes in the phase state of compounds with decreasing temperature could lead to negative effects (e.g., frost damage of porous materials). However, the use of certain mixtures may prevent these negative effects due to the colligative properties of the solutions (cryscopic effects, CE) that lead to several effects including relative lowering of vapor pressure, boiling point elevation, and freezing point depression (FPD). Confined space effects (CSE) also leading to the freezing point depression can affect the colligative properties of liquid mixtures with respect to FPD. One could assume that for some systems with certain FPD due to CE for bulk solutions, there is no additivity (synergetic effect) of CSE and CE, but for others, the opposite results could be. To elucidate these interfacial phenomena, a set of liquid mixtures bound to different adsorbents could be studied using low-temperature NMR spectroscopy. The solutions included acids, bases, and salts as solutes, some liquids (e.g., dimethylsulfoxide, acetonitrile, n-decane) as co-sorbates and others (e.g., CDCl3, CCl4) as dispersion media. The adsorbents included various porous and highly disperse silicas, fumed alumina, carbons (activated carbons, graphene oxides), and porous polymers. So wide ranges of the systems studied could allow one a deeper insight into competitive or additive CSE and CE influencing the interfacial and temperature behaviors of bound liquids. The results of this analysis are of interest from both practical and theoretical points of view.
Electrocatalytic reduction of water clusters on binary alloys of molybdenum with iron subgroup metals in an alkaline medium
Authors:   V.I. Vernadskyi Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine, Nikitenko V. N. , Babenkov E. A. ,   V.I. Vernadskyi Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine, Bersirova O. L. ,   V.I. Vernadskyi Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine, Kublanovsky V. S. ,   V.I. Vernadskyi Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine
Published: February 2024

The total reorganization energy of the system and its components, the solvent reorganization energy and the transformation energy of reactants (water clusters [(H2O)nOH]-), during electrocatalytic hydrogen evolution on binary alloys of molybdenum with iron subgroup metals (Fe, Co, Ni) in an alkaline medium (30 wt. % NaOH solution) have been calculated. The calculated values of the solvent reorganization energy and the reorganization energy of water clusters are in agreement with the Marcus – Dogonadze – Kuznetsov theory. The dependence of the total reorganization energy of the system, the solvent reorganization energy, and the reorganization energy of discharging species (water clusters) on the electrolyte temperature has been calculated. It was shown that the total reorganization energy of the system and the activation energy of the electron-transfer reaction of electrocatalytic hydrogen evolution (HER) on binary alloys of molybdenum with iron subgroup metals in an alcaline vedium (30 wt. % NaOH solution) decrease linearly with increasing electrolyte temperature in the following order: Fe-54 at. % Mo > Ni-54 at. % Mo > Co-52 at. % Mo. The temperature dependences of the water cluster discharge reorganization energy and the activation energy on binary molybdenum alloys are linear and intersect in the boiling point region of 30 wt. % NaOH solution 384.7 K. At this temperature, the electrode process is limited by the diffusion of regenerating water clusters to the electrode surface. The calculated diffusion activation energy Ad is 9.9 kJ·mol–1. The value of the system reorganization energy lt is 39.8 kJ·mol–1, which is consistent with the theory of Markus – Dogonadze – Kuznetsov. Electrocatalytic activity of binary alloys of molybdenum with iron subgroup m
Hydrogel films based on sodium alginate modified with octane-1-amine: enhanced pore formation and potential applications in drug delivery systems
Authors:   National University of Kyiv-Mohyla Academy Ukraine, Sikach A. V. , Konovalova V. V. ,   National University of Kyiv-Mohyla Academy Ukraine, Kolesnyk I. S. ,   National University of Kyiv-Mohyla Academy Ukraine
Published: February 2024

The use of wound dressings is gaining more and more popularity, especially in the field of tactical and military medicine. Developing wound dressings capable of facilitating wound treatment and reducing healing time is one of the challenges of modern science. So, sodium alginate (Alg) is a good candidate for the development of wound dressings due to its bio- and hemocompatibility and biodegradability. However, Alg has its shortcomings, which can be dispatched by modification. The purpose of this work was to investigate the effect of Alg modification on the kinetics of ethonium release from crosslinked with Ca2+ ions samples. For this purpose, a method of Alg modifying with octane-1-amine was developed without the use of organic solvents and with the use of 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide hydrochloride (EDCl) as an initiator. The optimal parameters of alginate modification process were defined as 60 °С temperature and 24 hours duration. Physicochemical methods confirmed the success of the modification. Films based on the alginate modified with octane-1-amine (AlgM) were obtained using a calcium chloride solution as a crosslinker. The kinetics of swelling was studied and we found that the degree of swelling of the sample based on AlgM after 10 minutes is twice as large (α = 0.71) as for Alg (α = 0.37), which indicates a faster release of drugs. It has been found that the kinetics of release of ethonium depends not only on the kinetics of swelling but also on the chemical nature of the drug. The ethonium was immobilised in alginate films as a model of bactericidal drug. The kinetics of ethonium release was studied at different pH values corresponding to the pH of healthy skin (5.5), open wounds (7.2) and inflamed wounds (8.2). It was found that the release of ethonium from the sample based on AlgM is more pH-sensitive and prolonged, compared to the sample based on Alg. This effect is explained by the appearance of an additional mechanism of retention of ethonium by AlgM due to hydrophobic-hydrophobic interactions in the films. The prolonged release properties observed in the drug-loaded samples make them promising candidates for the development of targeted drug delivery systems and wound dressings, which are particularly relevant for the treatment of chronic and burn wounds. Future research will focus on optimizing the crosslinking method and exploring potential applications of modified alginate-based materials in biomedical sciences.
Study of Viable Bacteriophages During Activation of the Pseudolysogenic State of Pectobacterium carotovorum
Authors: Romaniuk L.V. , Zlatohurska M.A. , Gorb T.Yu. , Tovkach F.I.
Published: February 2024

The rare occurrence of viable bacteriophages is an issue in studying bacterial-phage systems of the phytopathogenic bacterium Pectobacterium carotovorum subsp. carotovorum (Pcc). Aim. To obtain viable bacteriophages by activating pseudolysogeny of the Pcc strains. Methods. To obtain bacteriophage F66, isogenic clones of Nalr mutants of strains Pcc 66A and Pcc M2-4 were used. To study the properties of the phage, ultracentrifugation of viral particles, electron microscopy, electrophoretic separation, and comparative restriction analysis of virion DNA were used. Results. It was shown that some isogenic clones of Nalr -mutants of Pcc 66A and Pcc M2-4 can produce viable bacteriophages under conditions of intensive aeration. At the same time, induced phages are able to reproduce on the parent bacterial strains, which they were isolated from (pseudolysogenic response). A pure line was obtained for the phage isolate induced from pseudolysogenic Pcc 66A Nalr by consecutive single colony passages. This phage, named F66, was shown to be temperate and able to lyse and lysogenize strains of pectolytic bacteria isolated from soft rot affected potato tubers. Phage F66 has а virion with the A1 morphotype characterized by an isometric head with an average diameter of 52.0 ± 2.1 nm and a contractile tail with a length of 115.4 ± 3.2 nm. Showing low stability under environmental conditions, phage F66 differs significantly from the temperate phage ZF40 P. carotovorum, which has a similar virion morphology. Compared phages also differ in the restriction fragment patterns obtained using endonucleases HindIII, BamHI, and HpaI. Conclusions. Temperate phage F66 is a novel P. carotovorum virus. The method for activating the pseudolysogenic state proposed in the article is useful for obtaining viruses of phytopathogenic bacteria.
Multiple effects of angiostatins in injured cornea
Authors:   Department of Enzyme Chemistry and Biochemistry, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Bilous V. L. , Tykhomyrov A. O. ,   Department of Enzyme Chemistry and Biochemistry, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv;
Published: February 2024

Prolonged inflammation and excessive neovascularization of the cornea due to severe injury can impair optical clarity and lead to vision impairment. Plasminogen kringle (K) fragments, known as angiostatins (AS), play a well-established role as inhibitors of neovascularization by suppressing pro-angiogenic signaling­. However, AS effects in the cornea, beyond inhibiting the angiogenesis, are still unexplored. In this study, we estimate the protective effect of two AS variants (K1-3 and K5) against alkali burn injury induced in rabbit and rat corneas. AS K1-3 in the single doses of 0.075 or 0.75 μg (0.1 or 1.0 μM, respectively) or 0.3 μg of AS K5 (1.0 μM) were applied locally as eye drops daily for 14 days after the injury. A significant regression of corneal vessels in-growth in injured eyes treated with AS was revealed. Western blot analysis of corneal tissue lysates revealed that injury-induced overexpression of protein markers­ of hypoxia (HIF-1α), angiogenesis (VEGF), tissue remodeling and fibrosis (MMP-9), autophagy (beclin-1) and endoplasmic reticulum stress (GRP-78) was significantly reduced under AS treatment. Besides, the level of tight junctions protein ZO-1 was shown to be up-regulated after the treatment of the damaged cornea with AS K1-3. Summarizing, our study uncovered novel biological functions of the kringle-containing plasminogen fragments indicating its beneficial effects during corneal healing in the experimental model of alkali burn. The data obtained can be helpful for the development of novel efficient formulations to manage complications of ocular surface injuries.
The effects of an integration of art and science in outdoor activities on young children s scientific capability
Authors:   Research Institute for Early Childhood Education - Korea National University of Education, Kim Myung-hee
Published: February 2024

This study investigated that the effects of an integration of art and science in outdoor activities on children’s scientific capability. The research questions in this study are following: How will an integration of art and science in outdoor activities affect children’s scientific capability? 48 children(5 years old) who are attending to two public kindergartens located in the Daegu Metropolitan City in South Korea were participated in this study. An experimental group consisted of the 24 children from S kindergarten and a control group that comprised of the 24 children from D kindergarten. The experimental group experienced the integration of art and science in outdoor activities from 5-May-2016 to 15-July-2016(for 10 weeks). This study employed a kinds of checklists proposed by Cho(2015) to measure scientific capacity of children. To verify the research questions, the different scores between each group’s pre-test and post-test were calculated, and then t-test was conducted about average of incremental scores. The major findings through this study are as follows: scientific capability in the experimental group improved more than that of in the control group(p<.05). This study demonstrated that the integration of art and science in outdoor activities has a positive effect on 5-year-old children’s scientific capability.
The effect of art appreciation activity on the language expression ability of young children
Authors:   Research Institute for Early Childhood Education - Korea National University of Education, Bae Jeong-Hye
Published: February 2024

In this paper, researchers examined the effects of art appreciation activities on children’s language expression ability. The result of this study showed that the art appreciation activity positively influences children’s language expression ability. The meaningful results regrading children’s language expression ability such as number of words, number of sentences, consistency of contents and connectivity of language expressions were found.
The Bloch Spaces with Differentiable Strictly Positive Weights
Authors: Nan Ding , Wulan Hasi
Published: February 2024

In this paper, some basic characterizations of a weighted Bloch space with the differentiable strictly positive weight 𝜔 on the unit disc are given, including the growth, the higher order or free derivative descriptions, and integral characterizations of functions in the space.
Characterisation of high burnup spent mixed oxide fuel after leaching at hyperalkaline pH in a reducing environment
Authors: Schreinemachers Christian , Leinders Gregory , Van Eyken Jelle , Mennecart Thierry , Cachoir Christelle , Lemmens Karel , Verwerft Marc , Deissmann Guido , Bosbach Dirk , Modolo Giuseppe
Published: February 2024

Microstructural investigations of a Zircaloy-4 clad mixed oxide fuel rod segment with a burnup of 50.3 GWd/tHM after exposure to a synthetic young cementitious water at a hyperalkaline pH of 13.7(2) under reducing atmosphere for about 3.5 years were conducted. A deposit on surfaces exposed to the leachate was observed and attempts were made to identify its composition. Initial scanning electron microscopy/energy dispersive X-ray spectroscopy results indicate that it contains several leachate constituents, as well as Zr and Ti. The presence of Ti indicates corrosion of the autoclave liner during the leaching experiment. Surfaces which were not directly exposed to the leachate revealed additional features, such as distinct ε-particles. Remarkably, these could not be identified on surfaces exposed to the leachate, which may indicate that dissolution of the ε-particles took place as well.

Graphical abstract
Synthesis and characterization of PVP coated gadolinium oxide nanoparticles for imaging applications
Authors: Thi Thuy Khue Nguyen , Thi Thanh Tam Le , Thanh Dung Ngo , Thi Ngoc Linh Nguyen , Tuan Dung Nguyen , The Tam Le , Trong Lu Le
Published: February 2024

In this work, we present the synthesis and applications of Gd2O3@PVP nanoparticles as an efficient contrast agent for MRI and CT techniques. Gd2O3@PVP nanoparticles have been successfully synthesized by the polyol method using ethylene glycol and poly(vinylpyrrolidone) as solvent and surfactant, respectively. The structure, morphology and characteristic properties of the materials are thoroughly investigated by SEM, TEM, UV-Vis, XRD, FTIR and DLS measurements. As an important result, NPs synthesized under optimized conditions have a diameter in the range of 12 nm and exhibit a good contrast signal in magnetic resonance imaging and computed tomography at relatively low concentration ([NPs] = 0.1 mM for MRI and 1.25 mg.mL-1 for CT). In particular, the concentration of Gd2O3@PVP nanoparticles used in CT is 10 times lower than that of the commercial Iobitridol product (i.e., 12.5 mg.mL-1) to achieve similar signal intensity. This result has an important implication for reducing the dose of contrast agent introduced into the body. The obtained results suggest that PVP-coated Gd2O3 nanoparticles can be applied as multifunctional contrast agents for imaging diagnostic applications in the near future.
Extracellular L-asparaginase productive potential of the Priestia megaterium strain GB911 from Khanh Hoa sea of Viet Nam
Authors: Phuong Do Thi , Anh Nguyen Mai , Nga Nguyen Thi , Huyen Vu Thi Thu , Cuc Nguyen Thi , Phuong Trieu Ha , Minh Le Thi Hong , Thao Do Thi
Published: February 2024

Currently, L-asparaginase isolated from terrestrial microorganisms has been employed for anticancer industrial production. This enzyme has the function of inhibiting the growth of acute lymphoblastic leukemia, Hodgkin's lymphomas and other cancers. In this study, for the first time, L-asparaginase (ASNase) productive capacity of forty marine bacteria originating from Khanh Hoa sea of Viet Nam was screened and reported. Among those, twenty eight isolates were clarified for their extracellular ASNase activity based on their ability to form a pink zone around colonies on asparagine agar plates. As a result, four strains GB910, GB911, GB976 and GB982 showed high secreted extracellular ASNase activity, ranging from 8.64 to 13.22 IU/mg. Among these four most potential strains, GB911 exhibited better enzyme production capacity and was subjected to taxonomy identification. According to the 16S rRNA gene sequence on the GenBank database, strain GB911 was identified as Priestia megaterium and registered in the GenBank database with accession number MW407014. The purified enzyme obtained from strain GB911 exhibited strong cytotoxic activity against five monolayer and suspension cancerous cell lines with IC50 values ranging from 39 mU/mL to 98 mU/mL. The strain could serve as a promising source for industrial production of ASNase for clinical chemotherapeutic treatment.
AdaL-PSO A New Adaptive Algorithm for the Multi-Skilled Resource-Constrained Project Scheduling Problem
Authors: Toan Phan Thanh , Tuan Do Van
Published: February 2024

MS-RCPSP is a combinatorial optimization problem that has many practical applications, this problem has been proven to belong to the NP-hard class, the approach to solving this problem is to use algorithms to find approximate solution. This paper proposed a New Adaptive Local Particle Swarm Optimization algorithm for the MS-RCPSP problem. The solution for the class of NP-Hard problems is to find approximate solutions using metaheuristic algorithms. However, most metaheuristic-based algorithms have a weakness that can be fallen into local extreme after a number of evolution generations. In this paper, we adopted a new adaptive nonlinear weight update strategy based on fitness value and new neighborhood topology for Particle Swarm Optimization algorithm, thereby helping to prevent PSO from falling into local extremes. The new algorithm is called AdaL-PSO. A numerical analysis is carried out using iMOPSE benchmark dataset and is compared with some other early algorithms. Results presented suggest the prospect of our proposed algorithm.
Rey Sinning, Edgar (comp.). Santa Marta en los siglos XVI y XVII. Primera Parte. Tertulia Samaria, tomo V. Santa Marta: Caja de Compensación Familiar del Magdalena, 2021
Authors: Simmonds A. Ian Farouk
Published: February 2024

Esta obra propone una mirada documentada —inexistente hasta entonces— sobre la historia de la ciudad de Santa Marta, como las demás que componen la colección Tertulia Samaria. Este tomo es la primera parte del conjunto de estudios que abordan los dos primeros siglos del arribo castellano a las costas del Caribe colombiano, en tópicos que discurren entre la economía, la organización política y social, entre otros.
La prensa y el poder. De lo local a lo nacional: la relación de la prensa andaluza y los conglomerados mediáticos de España desde el siglo XX a la actualidad
Authors: Langa Nuño Concha , Moya López Daniel
Published: February 2024

La prensa local y regional es reconocida como un medio de comunicación importante para la ciudadanía por su cercanía y especialización. Esta prensa, no obstante, está conectada al poder de la misma manera que la de ámbito nacional. Este artículo analiza las principales cabeceras de la prensa andaluza en razón de su propiedad. Los resultados muestran que hoy pocos diarios andaluces siguen en manos locales y solo existe un gran grupo de comunicación regional. Un proceso acentuado desde la Transición Española y la consolidación de la economía de mercado.
Revistas capuchinas a ambos lados del Atlántico: El Adalid Seráfico (Sevilla, España) y El Heraldo Seráfico (Cartago, Costa Rica) desde una metodología comparativa (1900-1965)
Authors: Quesada Rivera Eugenio
Published: February 2024

Desde fines del siglo XIX, la Orden capuchina se lanzó a la fundación de revistas de contenido doctrinal y de talleres tipográficos allí donde tenía presencia, tal y como lo solicitó en reiteradas ocasiones el Papa León XIII (1878-1903). El propósito de este artículo es analizar dos revistas producidas por los frailes capuchinos en dos regiones distintas desde una metodología comparativa, se trata de El Adalid Seráfico de Sevilla y El Heraldo Seráfico de Cartago. Se propone adaptar el circuito de la comunicación desarrollado por Robert Darnton para estudiar estas publicaciones, por lo tanto, el trabajo pone el acento en las personas que intervenían en los procesos de producción, distribución y consumo.
Las influencias foráneas en el periodismo español de las periferias: francofilia y república en la prensa tinerfeña, 1874-1914
Authors: Le Brun Nathalie
Published: February 2024

La información foránea —especialmente la francesa— que llegaba a Santa Cruz de Tenerife para ser retransmitida en la prensa local no pasaba necesariamente por Madrid antes de llegar a la isla de Tenerife, sino que los equipos de redacción de algunos periódicos disponían de sus propias redes de colaboradores exteriores y de circulación de la información internacional. El protagonismo de estos periódicos no solo como medios informativos sobre la vida política, cultural o científica de Francia, sino también como órganos productores de la opinión pública de la capital provincial de Canarias contribuyó a forjar la singularidad de la prensa tinerfeña de esos años.
Acoustic minimization of Ocean Twilight Zone Vehicle, Mesobot
Authors:   , Davis Cameron J.
Published: February 2024

The OTZ is defined as the region of the water column between 200 and 1,000 meters in depth. It plays a vital role in the global carbon cycle, pushing carbon from the surface layer into the deep ocean. It has a very diverse population of fauna, known and unknown, that migrate up and down the water column to feed and reproduce. The migration pattern occurs based on the amount of radiated sunlight into the water column. The mid-water column vehicle, Mesobot, was designed to mimic the migration patterns of mesopelagic organisms. Unmanned Underwater Vehicles (UUVs) have become a staple of ocean exploration for years, going where man is not able to. Although much quieter than noise from shipping traffic, the noise radiated from Mesobot could present potential for error in observation, tracking, and sampling. In this thesis, I have analyzed the effect of commutation methods and propeller design on the acoustic noise radiated from a single BlueRobotics T200 thruster. The propeller design choices are a standard three-blade propeller and a three-blade toroidal propeller. The commutation methods analyzed are trapezoidal control and field-oriented control. After analyzing four different alternatives, quantitative evidence was found to recommend using field-oriented control as the commutation scheme to minimize the radiated noise from the thrusters on Mesobot. The radiated noise from the thurster was dominated by motor noise, and no conclusive evidence was found to recommend the three-blade propeller over the toroidal propeller.
Mãe Preta: uma santa fora da igreja
Authors: Bispo Alexandre Araujo
Published: February 2024

Em 1954, ao final das celebrações do aniversário de 400 anos da cidade de São Paulo, foi inaugurado o monumento à Mãe Preta. A obra foi instalada ao lado da Igreja do Rosário dos Homens Pretos, em uma localidade referencial para a identidade negra. Na década de 1980, depois de anos recebendo oferendas, o poder público reconheceu a legitimidade dessas práticas religiosas e tomou providências com vistas à preservação do monumento. Este artigo reflete sobre como a figura da Mãe Preta funciona popularmente como uma santa fora da igreja e sobre os problemas que as práticas religiosas causam à sua preservação patrimonial.
A vida, a morte e o pós-vida das materialidades de uma igreja demolida para a construção da Avenida Presidente Vargas, no Rio de Janeiro
Authors: Toniol Rodrigo , Araujo Marcella
Published: February 2024

Este artigo discute duas disputas técnicas entre engenheiros da Secretaria de Viação, Transporte e Obras Públicas e arquitetos do Serviço do Patrimônio Histórico e Artístico Nacional, durante as obras de abertura da Avenida Presidente Vargas (1937-1945). São elas: a discussão sobre o traçado retilíneo da avenida e a ameaça de demolição de quatro bens tombados, entre os quais duas igrejas de arquitetura colonial, e a proposta de transladação monolítica da Igreja de São Pedro dos Clérigos. Exploramos a ideia de que as demolições são boas para pensar processos de consagração e dessagração do patrimônio. Argumentamos que a ameaça de decomposição da unidade dos bens tombados, especialmente os religiosos, permite discutir o valor das coisas sagradas.
“Ela lá está abençoando esta diocese amada que pusemos sob sua guarda”: práticas culturais em torno do monumento mariano no Morro da Conceição na cidade do Recife (1904-1953)
Authors: de Moura Carlos André Silva , Lopes Neto José Pedro
Published: February 2024

O artigo analisa a formação e o desenvolvimento da Festa do Morro da Conceição, na cidade do Recife, durante a primeira metade do século XX. Em 1904 a Diocese de Olinda instalou um monumento em comemoração aos 50 anos do dogma da Imaculada Conceição, em um dos pontos mais visíveis da região, como parte do projeto de recatolização no Brasil. Inseridos nos debates da História Cultural, analisamos documentos eclesiásticos e periódicos, com o objetivo de compreender como a devoção foi construída, desenvolvida e consolidada em torno do lugar. Com isso, observamos que a hierarquia católica articulou a construção de um culto e a monumentalidade para fins sócio-políticos, alinhado aos projetos de evangelização e ocupação de espaços sociais pelos fiéis.
MEMES IN NATURAL SCIENCE TESTS
Authors: LOPES JOZÉLIO AGOSTINHO , LEITE BRUNO SILVA
Published: February 2024

ABSTRACT: The present study aimed to investigate how the multimodal meme genre has been mobilized in tests in the area of Natural Sciences (Chemistry, Physics, and Biology), using as material for analysis the traditional and serial entrance exams of state and federal public universities applied in the recent years (from 2001 to 2021), using the Revised Bloom's Taxonomy. This is a qualitative-quantitative, documentary-type research, perfomed through data collection and analysis. The results show that only five memes were present in the tests analyzed and that three of the identified memes presented the dimension of effective/factual knowledge, while the other two, in turn, expressed conceptual knowledge. The dimensions of the perceived cognitive processes concern the first three levels: remember (level 1), understand (level 2), and, finally, apply (level 3) through problematization, in a humorous way. Regarding the content covered in the memes, four are from Chemistry (acids and bases; general characteristics of the liquid state; periodic properties; covalent bonds), and one is from Biology (cytology: cytoplasmic organelles). We did not find any memes focused on the area of Physics. The study also revealed an initial number of memes in the entrance exams of the universities analyzed, thus pointing to the need for a more comprehensive promotion and investigation of this digital culture artifact.
Investigation of physical, chemical and microbiological quality of grape and mulberry leathers sold in Elazig (In Türkiye)
Authors: Demir Pelin , Patır Bahri
Published: February 2024

ABSTRACT: The aim of this study is the determination some quality parameters of grape and mulberry pestils (leathers) sold in Elazig. For this purpose, a total of 45 fruit pestil samples, of which 23 were grape pestils and 22 were mulberry pestils, were analyzed for their physical properties, chemical properties, and microbiological characteristics. In grape and mulberry pestils, the average L* (lightness/darkness) values were 42.72 and 44.81, a* (redness) values were 10.29 and 9.07, and b* (yellow) values were 20.90 and 20.90, respectively. In grape and mulberry fruit pestil samples, the thickness values were 1.62 and 1.34, pH values were 3.82 and 4.75, acidity values (as citric acid) were 0.63 and 0.22%, aw values were 0.602 and 0.627, dry matter values were 68.78% and 72.99 %, ash values were 2.25% and 0.64%, insoluble ash values in 10% HCl were 0.20 and 0.29, and Brix values were 18.83 and 19.36, respectively. TMAB, coliform, Staphylococcus-Micrococcus, and yeast-mold counts were found to be 4.72 and 4.48, 1.30 and 1.89, 2.11 and 2.12, and 2.04 and 2.11 log10 cfu/g, respectively, in all samples examined. In 14 of the samples (31.11%), the total number of mesophilic aerobic microorganisms was found to be >5 log10 cfu/g. Escherichia coli and Salmonella spp. were not found in any of the samples. However, the samples were found to contain significant levels of yeast-mold. There was no difference between the groups in microbiological terms in statistical analysis (P > 0.05). According to the current study, there was no standard production and not enough hygiene rules were observed in the pestil production process in family businesses in Elazig. On the other hand, essential information was obtained on some physical, chemical and microbiological quality parameters of grape and blackberry pulps sold in markets and stores in Elazig.
Life cycle and food consumption potential of the invasive terrestrial slug Meghimatium pictum (Stoliczka, 1873)
Authors: Landal Maitê Cristina Tucholski , Souza Mireli Trombin de , Souza Michele Trombin de , Bernardi Daniel , Gomes Suzete Rodrigues , Zawadneak Maria Aparecida Cassilha
Published: February 2024

ABSTRACT: The invasive chinese slug Meghimatiumpictum (Stoliczka, 1873) (Stylommathophora: Philomycidae) is originally from Asia, and it has been introduced in Latin American countries like Argentina and Brazil, where it is considered a critical horticultural pest. This species also became an intermediate host for the nematode AngiostrongyluscostaricensisMorera&Cespedes, 1971(Strongylida: Metastrongylidae), which can cause abdominal angiostrongyliasis in humans when ingested molluscs or their mucus containing larvae released on fruit and vegetables. This research aimed to investigate the biological parameters of the life cycle of M. pictum and evaluate its food preference to understand the species’ behavior and provide information on the choice of safer pest management and control methods. We observed that 68 and 75% of the grouped and isolated slugs, respectively, survived 26 weeks (180 days) under laboratory conditions. In addition, the individuals kept isolated had higher body mass (2.8 ± 0.6 g), length (3.3 ± 0.8 cm), and width (0.37 ± 0.3 cm) than grouped specimens. We also found that M. pictum has indeterminate growth and an annual reproductive cycle. Concerning food preference, slugs better accepted lettuce at different developmental stages (neonate, juvenile, and adult). Our study presents the first description of the M. pictum life cycle. We concluded that M. pictum has undefined biological parameters, which hampers its laboratory rearing. However, we also demonstrate its potential as a pest for different horticultural crops, which will require the development of management strategies.
Potential of coffee straw biochal as a substrate conditioner in seed lettuce and sorghum germination and vigority
Authors: Alixandre R. D. , Lima P. A. M. , Almeida T. F. R. , Oliveira J. S. , Pereira M. B. , Alixandre F. T. , Jacomino G. R. L. , Dias R. S. , Alexandre R. S. , Ferreira A. , Passos R. R. , Lopes J. C.
Published: February 2024

Abstract The use of residues from coffee production to obtain biochar is a sustainable approach, which aims to minimize the environmental impact of these materials. In this study, the effect of adding coffee straw biochar on the physiological quality of lettuce and sorghum seeds was investigated. Thus, the objective of this work was to study the effect of adding different concentrations of coffee biochar in the substrate composition on the physiological quality of lettuce (Lactuca sativa) and sorghum (Sorghum bicolor) seeds. The experimental design used was completely randomized, with five concentrations of biochar (0; 7.5; 15; 30 and 60%), conducted with four replications of 25 seeds. The use of biochar in the concentrations studied does not provide an increase in the average germination percentage and vigor of lettuce and sorghum seeds. The increase in the concentration of biochar caused less seed vigor, suggesting a toxic effect. For seed germination, there was no significant difference between lettuce and sorghum species, regardless of treatment. For the germination speed index, sorghum seeds have higher means, except for the treatment with the addition of 15% coffee straw biochar. Lettuce seeds have higher shoot length averages, except for treatment with 100% commercial substrate. The sorghum seeds have higher mean root length and dry mass than lettuce, regardless of the treatment.
Safety of preoperative branch embolization in patients undergoing evar
Authors: Suárez González Luis Ángel , Martínez-Luengas Iñigo Lozano , del Canto Peruyera Pablo , Vallina-Victorero Vazquez Manuel Javier
Published: February 2024

Abstract The purpose of this systematic review is to evaluate the safety of pre-endovascular abdominal aortic aneurysm repair (EVAR) embolization of aortic side branches - the inferior mesenteric artery and lumbar arteries. Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines were followed. A search of MEDLINE and DIMENSION databases identified 9 studies published from 2011 to 2021 that satisfied the inclusion and exclusion criteria. These studies were analyzed to detect the incidence of embolization-related complications. A total of 482 patients underwent preoperative aortic side branch embolization, 30 (6.2%) of whom suffered some kind of minor complication. The only major complication observed was ischemic colitis in 4 (0.82%) patients, two (0.41%) of whom died after bowel resection surgery. Regarding these findings, aortic side branch embolization seems to be a safe procedure, with very low percentages of both minor and major complications.
Fungi isolated from wild birds in the Marambaia Island, Rio de Janeiro State, southeastern Brazil
Authors: Genovez-Oliveira Jhon Lennon , Andrade Lucas A.S. , Oliveira Mariana S. , Lima Viviane M. , Berto Bruno P. , Oliveira Águida A. de
Published: February 2024

ABSTRACT: In Brazil, the Atlantic Forest has been suffering from deforestation, which has had impacts on its flora, fauna, and microbiota. However, the fungal diversity present in these environments is little known and studied. In this study, a total of 90 samples of 45 wild birds (45 feathers and 45 feces) were collected in Ilha da Marambaia, southeastern Brazil. Filamentous fungi isolated from these samples were identified through macroscopic and microscopic characteristics. Some isolates were identified by molecular biology using the PCR technique. Acremonium, Alternaria, Aspergillus, Cunninghamella, Curvularia, Eurotium, Fusarium, Geotrichum, Neosartorya, Pestalotia, Paecilomyces, Penicillium, Rhizopus, Mucor and Syncephalastrum were identified. These results indicate the presence of saprophytic fungi species in the feathers and feces of wild birds of the capture site. Further studies should be conducted to elucidate if the mycobiota profile modifies with anthropization and if it interferes with bird health and environmental recovery.
Framework de gamificação aplicado a processos organizacionais
Authors: Campos Junior Henrique de , Lourenço Carlos Eduardo , Mellão Júlia Marmo , Lombardi Vittoria Pereira Valente , Cesar Eliana Ferreira
Published: February 2024

Resumo Objetivo: Este trabalho tem dois objetivos: 1. apresentar, a partir da teoria, um framework no formato Canvas, que auxilie na análise de elementos utilizados em gamificação de diferentes processos; e 2. utilizar esse framework para analisar múltiplos casos de aplicativos de esporte, saúde e bem-estar (apps fitness). Foram selecionados quatro aplicativos para estudo: My Fitness Pal, Nike Run, Nike Training e Zombies, Run!. Originalidade/valor: Este estudo contribui para a teoria com a sistematização e a organização dos componentes de gamificação em um framework Canvas. Para praticantes, essa estrutura facilita a criação e o aprofundamento de iniciativas de gamificação. Design/metodologia/abordagem: Para respaldar a comparação entre os casos, adotaram-se seis etapas de gamificação obtidas a partir da bibliografia, divididas em: 1. definir os objetivos do negócio; 2. delinear o comportamento-alvo dos jogadores; 3. descrever os jogadores; 4. determinar os loops de atividade; 5. divertir os jogadores; e 6. desdobrar as ferramentas apropriadas. Esses passos foram organizados em uma estrutura do formato Canvas. Conclui-se, por meio de seis proposições, que existem fatores convergentes e divergentes entre os casos estudados, não havendo a utilização completa dos elementos de gamificação entre eles. Resultados: Entre as similaridades, destacam-se: 1. busca de bem-estar dos usuários, 2. utilização das etapas sugeridas para a gamificação, 3. fatores da jornada do jogador e 4. diversão. Entre as divergências, há: 1. especificidade de cada app, 2. modos de recompensar e 3. motivar usuários, dependendo da proposta de atividade e do tipo de jogador.
Sem contar mulheres e crianças: procurando o subtexto de género na Laudato Si’
Authors: Henriques Fernanda da Silva
Published: February 2024

Resumo: A Encíclica Laudato Si’ (louvado sejas), do Papa Francisco, tornou-se uma referência incontornável nos debates contemporâneos sobre a questão ecológica por ser um texto com um diagnóstico fundamentado da situação de crise global que o mundo atravessa, apontando propostas importantes para a enfrentar. Texto de diálogo e aberto ao diálogo, contudo, essa abertura não se refere às mulheres, dado que reproduz o olhar tradicional sobre elas, um olhar que as vê, mas não as toma em linha de conta, como aponta o título escolhido para este trabalho, onde se pretende mapear, na Encíclica, os traços que demonstram que ela não contou com as mulheres, antes, as ignorou ou retomou perspectivas doutrinais que as secundarizam e diminuem o seu valor social e ontológico, ignorando, assim, as décadas de debates que as mulheres, dentro e fora da Igreja, têm desenvolvido em torno do que significa ser mulher.
Ligas acadêmicas em saúde: uma revisão sistemática e proposta de checklist norteador de novos estudos
Authors: Gonsalves Daniel Gregório , Fernandes Isabelle Marques , Casari Julia Ravazzi , Falco Neto Wilson , Rissi Renato
Published: February 2024

Resumo Introdução: As ligas acadêmicas (LA) são grupos organizados sem fins lucrativos que seguem os princípios do trinômio universitário (ensino, pesquisa e extensão) por discentes e profissionais orientadores, historicamente presentes em faculdades de Medicina, mas também difundidas em diversos cursos de saúde. No entanto, o conhecimento sobre as LA é limitado. Objetivo: Este estudo teve como objetivos realizar uma revisão sistemática sobre as LA de saúde no Brasil, analisar o perfil demográfico e atuação delas no país, e propor concomitantemente um checklist norteador para a redação de relatos de experiência sobre a temática. Método: O estudo consiste em uma revisão sistemática que adotou as orientações do PRISMA e utilizou como banco de dados a BVS e Medline. Realizaram-se a descrição de detalhes das LA, a evolução histórica, o perfil demográfico e a avaliação bibliométrica dos dados obtidos. Além disso, elaborou-se um checklist (Crelas) para orientar novos relatos de experiência de LA. Resultado: Foram selecionados 2.064 estudos, e incluíram-se 74 artigos em 20 anos de análise (2003-2022). O perfil das LA em saúde se alterou com o passar dos anos, chegando ao modelo atual pautado no tripé de atividades. Ainda assim, as LA são heterogêneas no país, concentradas em algumas regiões, especialmente no Sudeste. Ademais, observaram-se uma heterogeneidade dos estudos, ausência de uma revista central e carência de estudos quantitativos uni/multicêntricos que avaliassem o impacto das LA na formação dos estudantes. Conclusão: Ainda são necessários novos estudos sobre essa temática com o propósito de esclarecer a lacuna acerca das atividades desenvolvidas e seus impactos acadêmicos e sociais.
Fatores associados às atitudes acerca da morte em estudantes internos de Medicina
Authors: Garrote Celso Henrique Denófrio , Siqueira Lara Sousa , Almeida Rogério José de
Published: February 2024

Resumo Introdução: O curso de Medicina constitui uma jornada de formação profissional exigente, acentuando-se nos dois últimos anos, no período do internato. Ocorre a exposição a inúmeros fatores estressantes, como o contato com a morte. O morrer envolve aspectos biológicos, sociais, culturais, legais, religiosos e históricos, mas, na medicina, é visto como ato de falha médica por causa da ausência de treinamento para manejá-lo. Objetivo: Este estudo teve como objetivo analisar os fatores associados às atitudes perante a morte em estudantes internos de Medicina. Método: Trata-se de estudo transversal analítico com abordagem quantitativa. A pesquisa foi realizada por meio de questionários aplicados de modo digital a estudantes internos de Medicina de todo país. Utilizaram-se os seguintes instrumentos: um questionário sociodemográfico e de aspectos relacionados à vivência com a morte e a Escala de Avaliação do Perfil de Atitudes acerca da Morte (EAPAM). Resultado: A amostra investigada foi de 171 internos de Medicina, sendo 74,9% do sexo feminino, 45% da religião católica e idade média de 24 anos. No fator medo da morte, houve maior escore nos estudantes de religião católica (p = 0,0395) e nos que não se consideraram preparados para lidar com a morte (p = 0,0010). No fator evitar a morte, maior escore no estado civil casado (p = 0,0147) e nos estudantes que não se consideraram preparados para lidar com a morte (p = 0,0020). Na aceitação por escape, maior escore nos estudantes de religião protestante (p = 0,0270), nos que referiram ter atendido paciente que faleceu (p = 0,0030) e nos que afirmaram que não se consideram empáticos (p = 0,0261). Na aceitação neutra, maior escore nos estudantes adeptos de outras religiões (p = 0,0296) e nos que afirmaram ter orientação sexual homoafetiva (p = 0,0398). Na aceitação religiosa, maior escore nos estudantes do sexo feminino (p = 0,0490), de estado civil casado (p = 0,0006), de religião protestante (p < 0,0001), com forte envolvimento religioso (p < 0,0001) e que atenderam paciente que veio a falecer (p = 0,0150). Conclusão: Assim, conclui-se que a abordagem biopsicossocial da morte no ambiente acadêmico é fundamental, haja vista a evidência encontrada em relação ao despreparo dos estudantes de Medicina do internato em relação a esse fenômeno.
Effects of biochar on soil fertility and the morphometry and production of elephant grass cultivars
Authors: Pacheco Laiane B. , Machado Roriz L. , Soares Frederico A. L. , Silva Pedro S. F. da , Rabelo Kassia C. de C. , Lima Ângelo A. de
Published: February 2024

ABSTRACT Among the various forage species used in ruminant feeding, elephant grass (Pennisetum purpureum Schum.) is notable as it is a perennial plant and has a high potential for dry matter production. The present study evaluated the performance of elephant grass cultivars and soil chemical characteristics under different biochar addition levels and at different evaluation times under irrigation in the dry season. The treatments were arranged in a factorial randomized complete block design (CBD) and analyzed in a split-plot design according to cultivar (BRS Capiaçu and BRS Kurumi) x biochar dose (0, 8, 16 and 24 t ha-1); the subplots consisted of four evaluation times (71, 225, 335 and 447 days after application of biochar), with four replicates. The soil chemical characteristics were evaluated without inclusion of the time factor according to a CBD in a 2 x 4 factorial scheme, with 4 replications. The attributes analyzed were soil fertility, morphometry and elephant grass yield. The performance of the cultivars improved at 225 days (2nd evaluation) and 335 days (3rd evaluation) after biochar application. The biochar doses did not significantly increase morphometric attributes, cultivar productivity or soil fertility. The application of biochar did not improve the yield attributes or crude protein of elephant grass cultivars under the conditions of this study.
Descripción de la interlengua escrita en español de estudiantes secundarios haitianos en una escuela de Santiago de Chile
Authors: Vega Gloria Macarena Toledo , Mena Leonardo
Published: February 2024

Resumen: Este artículo se enmarca en la Lingüística Aplicada a la enseñanza-aprendizaje de español como lengua extranjera (ELE)1 e investiga, mediante el análisis de errores de una muestra escrita, la interlengua en español de 36 estudiantes haitianos, en una escuela de Santiago de Chile. El análisis de errores permitió evidenciar que en los tres niveles estudiados (léxico, gramatical y textual) existen aspectos del español ya interiorizados en su interlengua. Los rasgos característicos de esta interlengua son: tendencia a la omisión de elementos, principalmente estructurales; preferencia por el uso de formas singulares; uso de lexemas con rasgos semánticos comunes no intercambiables; inconsistencia en la conjugación, con tendencia al uso del infinitivo en contextos inadecuados y la presencia de elementos propios del registro oral en la escritura. Las estrategias psicolingüísticas que explicarían dichos errores son de índole inter e intralingüística.