bluuebunny/crossref_metadata_2025 huggingface dataset:
The reductive decomposition kinetics and thermodynamics that govern the design of fluorinated alkoxyaluminate/borate salts for Mg-ion and Ca-ion batteries
Authors: Xie Xiaowei , Leon Noel , Small David , Clark Spotte-Smith Evan , Liao Chen , Persson Kristin
Published: August 2022

The rational design of electrolytes has been a long-standing challenge in chemistry and materials science. In this work, we demonstrate a computational rationale for improving the performance of weakly coordinating electrolytes in currently challenging multivalent-ion battery applications, based on enhanced thermodynamic and kinetic stability against reductive decomposition. A series of fluorinated alkoxyborate and alkoxyaluminate salts are systematically examined based on their reduction and oxidation potentials and, motivated by NMR spectroscopy, detailed reductive decomposition pathways involving the breaking of Al/B-O, C-O, or C-F bonds are obtained. Based on the decomposition kinetics, the hexafluoro-tert-isopropoxy (hfip) ligand for borates and the trifluoro-tert-butoxy (tftb) ligand for aluminates are identified as promising ligands for constructing the salt anions. This borate prediction corroborates previous experimental work on Mg[B(hfip)4]2 and Ca[B(hfip)4]2, in which excellent electrochemical properties were reported. We find that steric factors govern the B-O bond breaking decomposition kinetics while electronic factors are more important for aluminate salts. There is more charge-transfer character in the aluminate transition states compared with borates for Al/B-O bond breaking decomposition and thus electron-withdrawing ligands tend to stabilize the aluminate transition states. Such molecular-level understandings allow for better design principles for developing new electrolytes with improved stability and performance.
Azaboracyclooctatetraenes Reveal that the Different Aspects of Triplet State Baird-Aromaticity are Nothing but Different
Authors: Preethalayam Preethanuj , Proos Vedin Nathalie , Radenković Slavko , Ottosson Henrik
Published: August 2022

The Baird-aromaticity of BN/CC cyclooctatetraene isosteres (azaboracyclooctatetraenes) in their lowest triplet states (T1) has been explored through computations of various aromaticity indices describing the different aspects of aromaticity (magnetic, electronic, energetic and geometric). While cyclooctatetraene (COT) is aromatic in its T1 state following Baird’s 4n rule, we now reveal that the degree of Baird-aromaticity of the BN isosteres varies extensively with aromaticity aspect considered. According to energetic and electronic indices, the thermodynamically most stable octagonal B4N4H8 isomer, having alternating B and N pattern (borazocine, B4N4COT-A), is only weakly aromatic or nonaromatic in T1, while the magnetic descriptors suggest it to have about two thirds the Baird-aromaticity of T1 state COT (3COT). The extent of Baird-aromaticity of intermediate BN/CC isosteres also varies markedly with aspect investigated. On the other hand, magnetic indices indicate that borazine (B3N3H6) in its singlet ground state (S0) is weakly aromatic. This opposite features in the magnetic aromaticity descriptors of, respectively, S0 state borazine (1borazine) and 3B4N4COT-A can be linked to differences in the symmetries of the orbitals involved in the virtual transitions from occupied to unoccupied orbitals which describe the response of a molecule in an external magnetic field. For azaboraCOTs, the magnetic aspect of T1 state Baird-aromaticity (response aromaticity) is not related to the electronic and energetic aspects (intrinsic aromaticity), findings that underline earlier observations on differences between the various aspects of the aromaticity phenomenon (or phenomena).
Amine Functionalized Graphitic Carbon Nitride as Sustainable, Metal-Free Catalyst for Knoevenagel Condensation
Authors: Kumari Kamlesh , Choudhary Priyanka , Sharma Devendra , Krishnan Venkata
Published: August 2022

The design and development of novel, metal-free heterogeneous catalyst for organic transformation reactions is a challenging task. Amine functionalized graphitic carbon nitride (NH2-GCN) was prepared and used as a heterogeneous base catalyst for Knoevenagel condensation reaction. The amine functionalization leads to increased basicity due to the presence of additional -NH2 groups. The catalytic potential of NH2-GCN was tested for Knoevenagel condensation, which showed a good catalytic activity. The detailed optimizations of various reaction conditions such as, time, temperature, and catalyst amount were performed. All the reactions were performed under optimal conditions, as determined. Catalyst showed highest yield of 92% and only single product is formed. It also exhibits high turnover number. In addition to that, green metrics calculations were determined. To check the heterogeneous nature of the catalyst, recyclability studies were also performed. This catalyst provides a green, sustainable, and metal-free approach for Knoevenagel condensation reaction.
Energy transport in dichromic metallo-organic crystals: selective inclusion of spatially-resolved arrays of donor and acceptor dyes in different nanochannels
Authors: Wen Qiang , Malik Naveen , Addadi Yoseph , Maren Weißenfels Maren , Singh Vivek , Shimon Linda J. W. , Lahav Michal , van der Boom Milko E.
Published: August 2022

In this study, the precise positioning and alignment of arrays of two different guest molecules in a crystalline host matrix has been engineered resulting in new optically-active materials. Sub-nm differences in the diameters of two types of 1D channels is sufficient for size-selective inclusion of dyes. Energy transport occurs between the arrays of different dyes that are included in parallel-positioned nanochannels by fluorescence resonance energy transfer (FRET). Dichromism and diattenuation of individual micro-sized crystals are dependent on their relative position under polarized light. This angular-dependent behavior is a result of the geometrically-constrained orientation of the dyes by the crystallographic packing of the host matrix and is concentration dependent. These functionalized crystals can find applications in optical switches and as bulk materials for light harvesting and up-conversion.
Droplet size assisted polysiloxane architecting
Authors: Varol H. Samet , Seeger Stefan
Published: August 2022

(Super)antiwetting shielding around engineering materials and protecting them against harsh environmental conditions has been achieved in recent years via growing various geometry polysiloxane (or silicone) patterns around them by using droplet assisted growth (DAGS) method, where the polymerization takes place inside of the water droplets acting as reaction vessels. The size and distribution of these reaction vessels are the main factors in making different geometry silicone patterns; however, very little is known about the fate of these droplets throughout the polymerization. Here, we proposed keeping the relative humidity (% RH) inside the reactor stable throughout the polymerization as a new coating parameter to force the size of the reaction vessel water droplets to be the same for building simple shape silicone rods with controlled geometry and distribution. In this manner, we grew simple geometry cylindric micro-rods on surfaces and could tune their length, diameter, inter-rod spacings, and thus the (super)hydrophobicity. Beyond fabricating simple geometry cylindrical micro rods, here, we also demonstrate that by changing the amplitude and the stability of the % RH, it is possible to fabricate different (super)hydrophobic nano-grasses, conical silicone micro-rods, and isotropic silicone nanofilaments (SNF). In the end, the proposed new way of tuning initial and in-situ reaction vessel droplet size can be used as a single factor to formulate different geometry silicone patterns with tunable dimensions, leading to different roughness and thus different degrees of hydrophobicity and superhydrophobicity. Due to its simplicity, silicone patterning with irregular spacing and size is preferred among other coating techniques, but the mathematical description of these irregular patterns is not trivial to explain their (super)hydrophobicity. To a certain extent, the droplet-size-assisted silicone shaping in this work provides a new way to control the length, diameter, morphology, inter-rod spacing, and thus the (super)hydrophobicity of the silicone patterns, especially those in the shape of simple cylindrical micro-rods. This control over silicone architecting will help to prepare new (super)hydrophobic coatings with more controlled morphology and thus wettability; on the other hand, it will support surface scientists modeling the connection between surface geometry and (super)antiwetting of such irregular pillared surfaces that remain elusive.
EVALUACIÓN DE LA PRODUCCIÓN DE BIOGÁS CON LA APLICACIÓN DE DIFERENTES SUSTRATOS EN UN BIODIGESTOR ANAERÓBICO CONTINUO A PARTIR DE UNA SOLUCIÓN NUMÉRICA
Authors: Marín Rodríguez Laura Daniela , Guerrero Guerrero Andrés Felipe , Arenas Trujillo Cristian Alberto
Published: August 2022

La digestión anaeróbica (DA) está definida como un proceso bioquímico, en el cual, bajo la ausencia de oxígeno, diversas poblaciones bacterianas descomponen la materia orgánica con el fin de obtener biogás. Este producto, es una fuente de energía renovable que permite en gran porcentaje el aprovechamiento de residuos sólidos orgánicos, residuos de origen animal, plantas de tratamiento de aguas residuales, entre otros. Considerando el beneficio que pueden aportan los residuos sólidos orgánicos (RSO) para la obtención de biogás y posterior transformación en energía eléctrica, nace la propuesta de implementar un biodigestor continuo. Para llevar a cabo este proceso es necesario evaluar el comportamiento dinámico y producción de biogás de la DA a partir de modelos matemáticos y con los datos obtenidos de una revisión bibliográfica bajo la aplicación de diferentes sustratos. A partir de esto, se obtiene que la mayor producción de biogás se da con la aplicación de aguas residuales y vinazas de tequila como sustrato, en comparación, con el ensilaje de maíz y ensilaje de pasto. Adicionalmente, el pH en la zona neutral determina que el proceso de DA simulado es óptimo.
INNOVATION IN THE RUSSIAN FEDERATION: PROBLEMS AND PROSPECTS
Authors: Shumilina Vera , Kuzin Daniil
Published: August 2022

This article considers the problems Russia faces in developing its own innovation production. The features of Russia's innovation system functioning in modern economic conditions are analysed. Relying on the scientific and innovation potential, there are ways to develop our country's innovation potential in the face of sanctions.
IMPACT OF CRYPTOCURRENCY ON THE SHADOW ECONOMY
Authors: Shumilina Vera , Lekomtsev-Kataev Kirill
Published: August 2022

The article is devoted to the study of cryptocurrency and its impact on the shadow sector of the economy. Operations related to cryptocurrencies are anonymous, so it is very difficult to control all operations, which is why it has become so actively used in the shadow economy. This raises the problem of how to control transactions and what laws should be applied to regulate the digital currency
LEGAL WAYS TO ENSURE THE FULFILLMENT OF OBLIGATIONS TO PAY TAXES AND FEES
Authors: Tsykora Anna , Zolotukhin I.
Published: August 2022

The article deals with an urgent issue related to the establishment of types of enforcement of obligations to pay taxes and fees. Legal aspects and features of each type of security are also analyzed
ORGANISING COOPERATION IN THE INVESTIGATION OF ECONOMIC CRIME
Authors: Shumilina Vera , Popov Daniil
Published: August 2022

This article examines the specifics and opportunities for cooperation in the investigation of economic crimes by law enforcement agencies. The ways of their functioning are analysed, as well as highlighting the legislation that brings together the different bodies. Separate problems of organisation of investigation of crimes of this category are highlighted
Accounting as an element of folk science
Authors: Tatarov Konstantin
Published: August 2022

Abstract: Folk science (folk science) is an integral part of scientific thought. Economic innovations and leg-islative changes of recent decades have required practical accountants to develop new accounting methods. The pro-cess of scientific and methodological developments at the level of applied accounting, in the conditions of a legisla-tive and regulatory vacuum and the lack of official methods, gave rise to a folk-scientific trend in accounting. An independent direction of accounting arose and developed. scientific thought in the context of ethnic and folk (gar-age) economy. The generation of ideas, their practical implementation and the publication of results - the three pil-lars of folk science are considered in relation to accounting.
MODERN METHODS OF MANAGING AN ORGANISATION'S HUMAN RESOURCES
Authors: Shumilina Vera , Bystrov Anatoly
Published: August 2022

This article considers modern methods of personnel management at an enterprise, increasing the effectiveness of their impact on the workforce in modern economic conditions. The management personnel carries out controlling influence on the operating personnel management system, determines possibilities of effective use of resources of the enterprise, in particular labour. For the continuity and efficiency of the incentive process, methods of regulation of personnel management processes, which are laid down in the personnel policy of the enterprise, have a significant impact on the effectiveness of staff and work efficiency.
WORLD INFORMATION WARS. PROTECTION OF INFORMATION SECURITY
Authors: Kazakova Viktoriya , Sidorina Tat'yana , Dimova Roza
Published: August 2022

This article reveals the concept and essence of information security and information wars, as well as their main features. Proposals for solving problems and threats posed by information wars are revealed
Analisis Burnout Akademik Mahasiswa Pada Pembelajaran Daring : Analisis Pemodelan RASCH
Authors: Aminah Siti
Published: August 2022

Penelitian bertujuan untuk mengetahui tingkat burnout akademik mahasiswa saat pembelajaran daring. Jenis penelitian menggunakan analisis deskriptif kuantitatif. Subyek penelitian adalah mahasiswa. Teknik pengambilan sampel menggunakan simple random sampling. Jumlah responden pada penelitian ini yaitu 73 mahasiswa. Pengumpulan data menggunakan instrumen the copenhagen burnout inverntory student version dan dianalisis menggunakan analisis model RASCH. Nilai Alpha Cronbach yang mengukur interaksi antar item dan person adalah 0,90. Hasil ini menunjukkan bahwa data yang dimiliki sesuai dengan persyaratan pada pemodelan Rasch, sehingga instrument ini layak (reliabel) untuk digunakan. Pembelajaran daring yang dipersiapkan dengan baik dan menggunakan metode yang bervariatif dapat mencegah mahasiswa mengalami burnout akademik.
Propuesta de un sistema VAC para el aprovechamiento sostenible de agua lluvia en la finca Nanche, en el municipio de Pandi, Cundinamarca
Authors: Bautista Arcila Paula Alejandra , Apolinar Silvia , Forero Gonzalo
Published: August 2022

Históricamente, la ingeniería ambiental se ha preocupado por la gestión del recurso hídrico. Así mismo, el agro colombiano hoy en día se ve altamente influenciado por las dinámicas del recurso hídrico, a la vez que es uno de sus principales contaminadores. La productividad agropecuaria puede aumentar ajustando los procesos que hagan al sector más competitivo, mediante un uso adecuado de las nuevas tecnologías. Lo anterior puede lograrse a través de los sistemas VAC(del vietnamita V: vao = jardín, A: ao = estanque, C: chuong = animales domésticos). En este artículo se presenta una propuesta desde la ingeniería ambiental para el aprovechamiento sostenible de aguas lluvias por medio de un sistema VAC aplicado a la finca Nanche en Pandi, Cundinamarca, con el propósito de contribuir a la gestión integral del recurso hídrico. Partiendo de un modelo de elevación digital (DEM, por sus siglas en inglés), se procesaron diferentes variables climatológicas, topográficas, hidrológicas y agroecológicas, a través de herramientas informáticas y un sistema de información geográfica (SIG). El diseño incluye un estanque con capacidad para 600 m³ para un área de captación de 8064 m² para el mes de mayor precipitación. En el estanque se criarán peces guppy, carpas y tilapias. Alrededor, se hará ganadería de leche con 12 vacas criollas en 6 hectáreas; agricultura con cercas vivas de naranja, guayaba, y cultivos de banano, papaya, yuca y maíz en 5 ha; además de un pequeño huerto casero. Así, se aprovechará casi el 100% del área de la finca (11,13 ha). Se propone un arreglo técnico (cronograma) que especifica el desarrollo de cada una de las actividades a lo largo del año, y un presupuesto, que resultó en aproximadamente 60.000.000 COP para iniciar el sistema desde cero. La demanda de recurso hídrico del sistema (10.994.977,86 L/mes) es del 94% de su disponibilidad (11.647.603,40 L/mes). El sistema VAC es fácilmente replicable y muy efectivo, ya que puede quintuplicar la producción y, consecuentemente, el rendimiento económico de la finca. Las ventajas ambientales del sistema lo hacen especialmente apropiado para el sector rural colombiano.
Modelamiento de la viscosidad dinámica de refrigerantes utilizando la teoría de reacción absoluta de Eyring
Authors: Cardona Palacio Luis Fernando , Gómez Ceballos Viviana
Published: August 2022

En este trabajo se evalúa la capacidad de un modelo basado en la teoría de la reacción absoluta de Eyring en describir la viscosidad líquida saturada de refrigerantes y sus mezclas. Para la estimación de las propiedades termodinámicas asociadas al modelo de viscosidad se utiliza una versión modificada de la ecuación de estado de Peng-Robinson. El modelo tiene tres parámetros que son determinados utilizando datos pseudo-experimentales a partir de la base de datos de la NIST-REFPROP 8. En total, 660 datos pseudo-experimentales en un intervalo de temperatura entre 121.00 K y 479.98 K y de presión entre 2.18 kPa y 5782.6 kPa son utilizados en el proceso de ajuste. Las desviaciones absolutas promedio en la viscosidad son de 0.52 %. Posteriormente, el modelo es comparado con otros desarrollados en la literatura y este proporciona la menor desviación. Finalmente, el modelo es extendido a mezclas utilizando una regla de mezcla simple y las desviaciones promedio son de 2.01 %. En general, los resultados muestran que el modelo representa una alternativa apropiada para modelar la viscosidad saturada de líquidos de refrigerantes.
Pronóstico de corto plazo del índice de precios al consumidor: Análisis del costo de electricidad en la Costa Caribe de Colombia
Authors: Herrera Milton M. , Cisneros-Sosa Vanessa Alejandra , Lara-Montañez Andrés Fabian
Published: August 2022

La Costa Caribe colombiana se caracteriza por sus condiciones favorables para la generación de energía solar. Sin embargo, aún no han sido explotadas de manera tal que permitan una adecuada transición energética en el país. En este contexto, el artículo presenta una evaluación del consumo de energía solar desde dos aspectos: primero, investiga sobre la rentabilidad del uso de energías renovables aplicadas a la región del caribe en Colombia. Segundo, evalúa por medio de un modelo econométrico la relación entre la implementación de energía solar a nivel del consumo demandado por esta región, con respecto al ingreso per cápita de la población del caribe. Los resultados muestran a través de un modelo econométrico que el pago de este servicio publico recaerá en la población socioeconómicamente menos favorecida. Por lo tanto, este artículo contribuye a entender los efectos de las políticas de la energía solar en la región Caribe de Colombia, que incluye una discusión sobre las limitaciones de infraestructura de electricidad en esta zona del país.
Tratamiento de aguas residuales generadas en la industria de comunicación gráfica que emplea impresión tipo “Offset”. Estudio de caso
Authors: Gomez Murcia Julian Felipe , Quiroga Barrios Carlos Alberto , Agudelo Valencia Rafael Nikolay
Published: August 2022

En este trabajo se evalúa el tratamiento de efluentes generados en la industria litográfica con método “offset”, aplicando el proceso de coagulación, floculación, flotación y ozonización. En el agua se miden los siguientes parámetros en cada proceso de tratamiento, estos son: pH, sólidos disueltos totales (TDS), electroconductividad (EC), carbono orgánico total (COT), demanda química de oxígeno (DQO) y turbidez. De cada proceso se analiza el porcentaje de remoción obtenido para determinar la efectividad del mismo y se realiza un análisis de costos por cada m3 de agua a tratar. El agente coagulante que reaccionó fue el policloruro de aluminio (PAC) logrando remover el 56,35% en DQO, 52,14% en COT y 92,29% en turbidez. El agua clarificada obtenida posterior al proceso de coagulación, floculación y flotación siendo sometida a oxidación con ozono obtuvo remociones del 32,91% de DQO, 94,54% de turbiedad y 27,38% de COT. Se efectuó un barrido espectrofotométrico con el objetivo de confirmar cualitativamente la remoción de contaminantes por los cambios en las absorbancias de las muestras. Para lograr una mayor disminución de DQO y COT se requiere aumentar el tiempo de ozonización, el pH del agua durante el proceso e intensificarlo con radiacón UV de 254 nm que incremente la producción de ozono y radicales OH*.
Programa Polos Audiovisuales Tecnológicos, participación popular y regionalización de la comunicación en Argentina: el caso de Misiones
Authors: Pasti André
Published: August 2022

El Programa Polos Audiovisuales Tecnológicos fue una política de regionalización para la comunicación en territorio argentino, con el fin de promover acciones para la democratización de los medios de comunicación. El programa permitió implementar principios de la Ley 26.522 de Servicios de Comunicación Audiovisual (LSCA) de 2009, popularmente conocida como “Ley de Medios”. El programa desarrolló la regionalización del territorio argentino en nueve polos y la organización de una red federal con 42 nodos audiovisuales, con procesos participativos de la familia
O Programa Polos Audiovisuais Tecnológicos foi uma política de regionalização para a comunicação em território argentino, com o objetivo de promover ações para a democratização dos meios de comunicação. O programa permitiu implementar princípios da Lei 26.522 de Serviços de Comunicação Audiovisual (LSCA) de 2009, popularmente conhecida como "Lei de Mídia". O programa desenvolveu a regionalização do território argentino em nove polos e a organização de uma rede federal com 42 nós audiovisuais, com processos participativos da família de metodologias PPGA (participação popular e gestão associada) para promover condições locais para o desenvolvimento do audiovisual. Este artigo resulta de uma pesquisa de tese de doutorado e analisa a experiência do Nó Audiovisual Missões na rede federal. O Nodo Misiones fortaleceu os intercâmbios dos agentes locais e resultou em produções audiovisuais, fóruns de discussão sobre comunicação e na aprovação de uma lei provincial sobre a promoção da comunicação audiovisual.
Identidades sordas
Authors: Cardona Ortiz Ximena Alejandra
Published: August 2022

Este texto presenta algunas reflexiones sobre la cultura y la identidad de las personas sordas, y sobre cómo estas se reconfiguran a partir del reconocimiento de su lengua (la lengua de señas), buscando generar un distanciamiento de los ejercicios de normalización y colonización que históricamente han pretendido reforzar las lógicas dominantes, homogéneas, en las que se dan las interacciones, donde solo se reconoce una lengua y es a partir de esta que se median todos los procesos. El recorrido por este camino investigativo se hace desde una perspectiva cualitativa, bajo un enfoque historico-hermeneutico; a través de unas historias de vida que, junto a la mía propia, están atravesadas por algo en común: ser narradas por hijos/as oyentes de padres Sordos, lo que permitirá otras formas de reconocimiento desde la pluralidad, la fragilidad, el abordaje de nuestras propias subjetividades, y el tránsito por las propias identidades. A través de un discurso en el que se encuentran las voces y señas de algunos autores/as, y se entrecruzan con algunos relatos de quienes caminan conmigo este proceso y con mis propios relatos, que terminan materializándose en ese encuentro, en aras de comprender lo que significa la lengua de señas y, a su vez, el proceso de construcción de esas identidades otras.
Pedagogía angelical
Authors: Saldarriaga Vélez Oscar De Jesús
Published: August 2022

El presente artículo es una versión escrita modificada de una conferencia leída en la Universidad del Valle, el 29 de octubre de 2018, con ocasión del evento de celebración de años de fundación del Grupo de Historia de la Práctica Pedagógica en Colombia (GHPPC). Concebido al modo de fábula, con la figura de un acalorado debate entre “ángeles pedagógicos” y “diablos epistemológicos” en la cabeza del autor, el artículo propone un balance sobre el significado y la evolución de dos nociones fundacionales que el GHPPC ha aportado al campo conceptual de la pedagogía en el país, las nociones de saber pedagógico y de práctica pedagógica. Mediante los intercambios y contrargumentaciones, se perfilan dos posiciones antagónicas hoy en este campo: quienes sostienen la necesaria e inevitable desaparición de la pedagogía y quienes mantienen el proyecto de fortalecerla como el saber propio del oficio de maestro y como disciplina crítica de las relaciones escuela-cultura-sociedad. La fábula termina por insinuar de qué modo ambas posturas tienen razón y porqué cada una de ellas no tiene la razón.
Otras educaciones y pedagogías ancestrales
Authors: Fayad Sierra Javier
Published: August 2022

Las organizaciones indígenas iniciaron en la década de 1980 la creación de escuelas comunitarias, en las cuales han venido generando concepciones como las de etnoeducación, educación intercultural y educación propia, que han logrado su reconocimiento en la Constitución de 1991 y las leyes y decretos posteriores. De ello se ha derivado la construcción de proyectos educativos comunitarios (PEC) y la formulación de propuestas de sentidos y raíces pedagógicas que configuran la educación propia. En este artículo de reflexión presentamos algunos elementos de la construcción de las pedagogías ancestrales o pedagogías propias, que son el resultado de resistencias y luchas por el reconocimiento que los pueblos indígenas siempre han hecho, aunque poco se hayan documentado.
Efectos del proyecto de vida en el autoconcepto, autoestima y orientación universitaria en estudiantes rurales
Authors: Orejarena Silva Hector Andrés Andrés , Alvarino Cadena Elías José
Published: August 2022

El objetivo de esta investigación, fue estudiar el efecto que produce la planificación del proyecto de vida, en el autoconcepto académico, autoestima, exceptivas sobre el futuro y la selección de la carrera universitaria, en los estudiantes del grado 10° del colegio pozo cuatro sedes J puerto López. La muestra fue de 13 estudiantes durante el año escolar de 2020.  Este estudio es de tipo pre-experimental de un solo grupo, con pre test y post test. Entre los hallazgos más importantes se destacan: el aumento en los puntajes y en la frecuencia de los estudiantes que se encuentra seguro de la selección de la carrera o programa de educación superior, la integración de los factores psicosociales como componentes de apoyo de la orientación vocacional y los efectos que produce la planificación del proyecto de vida en el conocimiento de sí mismos.
Comparative analysis of seismic response of buildings with different base isolation systems
Authors: Shankar H. Sanni , Vilas Kulkarni
Published: August 2022

When a structure is subjected to earthquake forces, vibrations are setup in the structure leading to severe damages to the structure and results in loss of property and life. Now a days, keen attention is given to research and development of vibration control devices to mitigate the seismic effects. The present duty of civil engineer is to discover earthquake resisting design approach to reduce structural damages. The basic technology used to protect the structure from damaging earthquake effects is “base isolation”. The base isolation system decouples the super-structure from the substructure by means of flexible devices through which seismic energy is dissipated. In the present context G+15 storey structure situated in zone V is modeled and analyzed using ETABS-2017 software by providing different base isolation systems namely a) RC structure having fixed base b) RC structure with Fluid Viscous Damper (FVD) and Lead Rubber Bearing (LRB). Response of the structure is studied in terms of story displacement, story drift, base shear, natural time period and design lateral forces. It is found that the provision of Fluid Viscous Damper (FVD) and Lead Rubber Bearing (LRB) in a same structure shows better performance in story displacement, base shear, story drift, natural time period and design lateral forces as compared to fixed base model.
Durability studies of concrete added with nanosilica
Authors: Chekravarty D. S. V. S. M. R. K. , Mallika A. , Sravana P. , Srinivasa Rao
Published: August 2022

The performance of existing materials such as concrete has been improved significantly by blending it with specific property enhancement materials especially nanomaterials like nanosilica. Utilization of nanosilica has been proved to be beneficial because of its indispensable qualities, which helps in creating concrete with improved strength and durability. In this paper, the impact of nanosilica on toughness of cement has been researched. For this purpose, 3% of ideal measurement of nanosilica has been added to solid combinations of M40, M50, M60 grades of concrete. Additionally, the admixture Conplast SP 430 is utilized to build workability. For the experimental studies, M40, M50, M60 evaluations of cement with water concrete proportion of 0.48, 0.45, and 0.40 is used. Durability has been investigated through sorptivity, freeze & thaw, carbonation, rapid chloride porousness tests. Results of this current examination study indicated that nanosilica can be successful in improving the sturdiness of cement.
Comparative study on strength aspects of lightweight concrete by replacing fine aggregate with vermiculite and cement with metakaolin and fly ash
Authors: Preethi M. , Mohd Hamraj , P. Ashveen Kumar
Published: August 2022

Despite the advantages of using lightweight concrete, its use as a structural elements is relatively small compared to conventional concrete. The density and properties of lightweight aggregates using expanded vermiculite as an alternative to natural river sand in building materials development would improve lightweight concretes. Therefore, the objective of this study is to investigate the strength properties of lightweight concrete M30 with fly ash, metakaolin and vermiculite with natural sand as a partial replacement for cement. In this study, a total of eighteen different concrete mixes were prepared with the replacement of cement with 20% fly ash and fine aggregate with vermiculite proportions from 0 to 25% in 5% increments, and another concrete mix was prepared with the replacement of cement with 10% metakaolin and fine aggregates with vermiculite fractions from 0 to 25% with the addition of 5%. The results were compared with a concrete mix without cement and at various ratios of vermiculite as a replacement for fine aggregate. 54 cubes of dimension 100 mm x 100 mm x 100 mm was cured for 28 days to determine the compressive strength; 54 prisms of dimension 100 mm x 100 mm x 500 mm was cured for 28 days to find flexural strength; and 54 cylinders of 100 mm diameter and height 300 mm was cured for 28 days to determine split tensile strength, all tests were conducted as per applicable Indian standards.
Designing of Registration System based on Estimated Patient Consultation Time for Crowded Prevention
Authors: Tungadi Astrid Lestari , Lisangan Erick Alfons
Published: August 2022

Along with the increase in population and the development of information technology, it is necessary to have a system that is able to support the process of improving health care. One of the weaknesses of the current health care system is the patient waiting time which is still below the established standard, which is less than 60 minutes. This study designed a patient registration system that can estimate the patient's arrival time based on the input symptoms. The use of QR Code technology and meeting applications helps to support patient registration and consultation. The research methodology uses the waterfall method by involving doctors and patients as data sources. Test results using black boxes indicate that the system is able to categorize patient care as expected. The system has also been able to function well functionally. It takes a process of updating symptoms periodically by doctors so that the system is able to recognize new symptoms that have not been recorded previously. With the estimated arrival time, the queue or crowd of patients in the waiting room can be minimized properly.
Implementasi Augmented Reality Pengenalan Hewan, Buah dan Kendaraan Untuk Pendidikan Usia Dini
Authors: Riyanto Riyanto , Suharso Aries
Published: August 2022

Akibat dari pemberlakuan aturan social distancing, sektor pendidikan dengan terpaksa harus menerapkan sistem Pembelajaran Jarak Jauh (PJJ) atau belajar dari rumah yang terkadang membuat para pelajar merasa bosan dalam pelaksanaannya. Oleh karena itu dibutuhkan sebuah media pembelajaran alternatif untuk mengatasi rasa bosan tersebut. Salah satu metode yang dapat digunakan adalah belajar melalui aplikasi dengan penambahan teknologi augmented reality. Tujuan dari penelitian ini adalah merancang sebuah media pembelajaran interaktif untuk anak usia dini berbasis teknologi augmented reality dan untuk mengetahui dampak penggunaannya. Penelitian ini berjenis penelitian tindakan, sedangkan untuk metode pengembangan software yang digunakan adalah model waterfall. Aplikasi ini dirancang menggunakan Unity 3D dan Vuforia SDK. Hasil dari perhitungan kuesioner, didapatkan nilai sebesar 98,6% yang berarti aplikasi masuk ke dalam kriteria sangat efektif menurut Skala Likert. Dan dari hasil uji-t berpasangan terhadap pengguna aplikasi sebelum dan sesudah menggunakan aplikasi, mendapatkan kesimpulan terdapat perbedaan penilaian hasil belajar sebelum dan sesudah menggunakan aplikasi pembelajaran dasar untuk anak usia dini berbasis augmented reality.
A Tabela Periódica de Primo Levi: Uma Análise a Partir das Concepções de Ciência e Arte de Lukács
Authors: Massi Luciana , Da Silva Rafaela Valero , Leonardo Júnior Carlos Sérgio , Maciera Aislan Camargo
Published: August 2022

A tabela periódica, obra literária do químico e escritor italiano Primo Levi, vem sendo objeto de estudos que articulam ciência e arte/literatura. Identificamos nesses e em outros trabalhos focados nessa relação duas lacunas importantes que trabalhamos neste artigo: não se apoiam em referenciais de interpretação estética; abordam essa relação destacando as suas similaridades ou diferenças. Este trabalho, de natureza teórico-conceitual, parte da análise da obra de Levi com o objetivo de compreender as relações entre ciência e arte por meio das categorias lukacsianas de reflexo, particular, antropomorfização e desantropomorfização. Assim, procuramos apresentar novas perspectivas nas associações entre ciência e arte, evitando reducionismos. Identificamos a relação do homem com o trabalho do químico como fio condutor dos capítulos da obra. Defendemos referenciais teóricos estéticos para melhor compreender a relação entre ciência e arte, além de apresentar algumas implicações para a Educação em Ciências a partir da discussão das lacunas.
Evaluation of the effectiveness of fungicides with single and double application in winter wheat crops in the conditions of the Lower Volga region
Authors: Parpura Denis Igorevich , Voinova Maria Sergeevna , Sidortsov Anton Ivanovich
Published: August 2022

The possibility of reducing the pesticide load on agrocenosis without losing the economic and biological effectiveness of fungicides is considered. The results of a two-year experiment comparing a single application of the fungicide Elatus® Ria, EC (active ingredient: 83.33 g/l Solatenol®, 66.67 g/l cyproconazole, 208.33 g/l propiconazole) with base fungicide Alto Super, EC (active ingredient: 250 g/l propiconazole, 80 g/l cyproconazole) in winter wheat crops of the Zhemchuzhina Povolzhya variety in the conditions of the Lower Volga region. Studies have shown that a single application of the Elatus Ria fungicide on winter wheat against a complex of pathogens in various natural and climatic conditions is more effective than a double application of the Alto Super fungicide.
The use of digital technologies in the practice of veterinary clinics
Authors: Akchurin Sergey Vladimirovich , Dyulger Georgy Petrovich , Akchurina Irina Vladimirovna , Bychkov Vladislav Sergeevich , Sedletskaya Evgeniya Sergeevna
Published: August 2022

There is an analysis of the use of digital technologies and digital devices in the practice of veterinary clinics located in large cities of the Central Federal District of the Russian Federation. The method of questioning was used in the work. The respondents were employees of veterinary clinics. It has been established that veterinary clinics actively use digital technologies in their work to promote veterinary services in the Internet space (websites, pages in social networks), to inform and consult clients (e-mail, instant messengers, social networks, chat bots, TV veterinary medicine), to manage clinic (specialized programs «Vetmanager», «ERISCA», etc.), and improving the monitoring of the condition of animals and the diagnosis of pathologies (veterinary control sensors, video cameras, digital equipment). The equipment of veterinary clinics includes the following digital devices: digital thermometer, digital ultrasound scanner, electronic tonometer, digital X-ray machine, digital veterinary monitoring sensor, electronic stethoscope. There are most widely used digital technologies/devices: e-mail, specialized digital devices (digital X-ray machine, ultrasound scanner, etc.), instant messengers, clinic website. The following programs are used by veterinary clinics to automate administrative, economic and medical diagnostic processes: «Vetmanager» – 31.0% of clinics; «ERISCA» – 18.3%, etc. In 14.1% of the analyzed veterinary clinics, specialized software is not used.
Optimal timing of seasonal calving of cows in the APC «Druzhba»
Authors: Prishchep Elena Alexandrovna , Gontov Mikhail Eliseevich , Leutina Diana Vyacheslavovna , Gerasimova Alla Sergeevna
Published: August 2022

The choice of the optimal calving time for cows is of urgent importance for the economy. The influence of the calving season on the variability of milk productivity of brown Swiss cows of the APC "Druzhba" (Smolensk region) was studied. It was established that the milk yield of cows calved in the autumn-winter period for 305 days of lactation amounted to 6272 kg of milk, which is 251 kg (4%) higher than the productivity level of cows calved in the spring - summer period. In terms of the amount of milk fat, autumn calving cows exceeded summer cows by 12 kg or 5% (p?0.01), and protein by 10 kg. The range of variation and the coefficient of oscillation in milk yield was lower in animals of summer calving, the highest in cows of spring calving. The coefficient of variation in milk yield, fat and protein is less than 25% and corresponds to the average variability of traits in the groups. In animals calved in winter, the coefficient of lactation stability is 5% higher compared to cows of the spring season, in autumn this indicator is 2% more than in animals calved in summer, 8% in spring and 3% in winter. Revenue from the sale of milk from cows of autumn calving is higher compared to winter by 5.6 thousand rubles, of spring by 11.5 thousand rubles and of summer by 10.3 thousand rubles.
Research results on the performance of imported tractors with a trailed share-dump plow
Authors: Boykov Vasiliy Mikhailovich , Startsev Sergey Viktorovich , Pavlov Andrey Vladimirovich , Nesterov Evgeniy Sergeevich
Published: August 2022

The description of theoretical and experimental studies of operational indicators of arable units assembled from Deutz-Fahr Agrotron TTV 9340, Claas Axion 930, Case Magnum 340 tractors with a domestic general-purpose ploughshare plow PBS-10P is given. All tractors have a 4K4a wheel formula, and the rear wheels are paired. The power of the tractor engine ranges from 247 to 254 kW. The possibility of their almost equivalent use on the main dump tillage with a PBS-10P plow with a capacity of 4.4-5.0 ha/h and fuel consumption of 8.5-8.7kg/ha has been established. The efficiency of arable units at a speed of 2.2 m /s equal to Deutz-Fahr Agrotron TTV 9340+PBS-10P 0.734; Claas Axion 930+ PBS-10P 0.714 and Case Magnum 340+PBS-10P 0.726 characterizes the level of effective engine loading. The quality of the technological process of dump plowing of the field after harvesting sunflower meets the established agrotechnical requirements.
Methods and means of process risk mitigation during operation of equipment for applica-tion of chemical means of combined potato-setting machines
Authors: Kalinin Andrey Borisovich , Teplinsky Igor Zinovievich , Shkrabak Roman Vladimirovich , Teplinsky Oleg Igorevich , Nemtsev Ivan Sergeevich
Published: August 2022

Ensuring safe and healthy working conditions in biotechnical systems associated with the implementation of technological processes for the production of crop products is a complex system problem, the solution of which requires not only an assessment of the parameters of the technical condition of technological machines, but also the correctness of the certain actions of the human operator of the machine-tractor unit, as well as the properties of production items and sanitary and hygienic working conditions. One of the effective methods of technogenic nature in solving the problem related to minimization of technological risks leading to chemical contamination of the agricultural environment during the operation of the investigated complex is to equip it with digital automated devices for active control of the quality of dosing of introduced materials, which would promptly provide real-time forecasting of the state of the investigated object and carry out information-measuring and restoration functions. The creation of automated active monitoring devices required special experimental studies under normal operation conditions with obtaining a large amount of data and their statistical processing, the results of which formed the basis of this development.
Filosofía de la embriaguez
Authors: Hernández Pineda Juan Carlos
Published: August 2022

El presente artículo realiza una breve exploración de las consideraciones que en torno al fenómeno de la embriaguez han dominado en la reflexión filosófica. Así se descubre que la tradición del pensamiento, tomando de modelos a filósofos como Platón, Descartes y Nietzsche, ha sostenido una posición paradójica al respecto: por un lado, la ebriedad abre una vía hacia el descubrimiento de la verdad, pero por el otro, se la rechaza como vicio, experiencia irracional y signo de degeneración. De aquí se propone que la embriaguez pertenece a otro campo que no es propiamente el de la filosofía ordenada por el hombre, sino que se encuentra estrechamente vinculada con la representación del cuerpo y el saber de la mujer, la cual remite a un origen sin registro. Por último, esto posibilita vislumbrar la privación simbólica que ha padecido la mujer para adueñarse de un lugar en la historia.
Supervenience, Entailment, and Vague Objects
Authors: Zaitsev Dmitry
Published: August 2022

Not long ago came into common use, the relation of supervenience is rapidly gaining in popularity. At the same time, its logical nature, in particular its possible correlations with such fundamental logical relation as entailment, remains unresolved and needs clarification. In this paper, I compare these two relations and outline a new approach to formal explication of supervenience. In so doing, I employ as main sources two conceptions: of intensional semantics, and impossible object descriptions as its core part, introduced in section 3, and of relevant consequence relation, briefly described in section 4, where I also delineate a new entailment interpretation of supevenience. Thus, quite naturally we arrive at contradictory and incomplete descriptions of objects, and that way, uncertainty comes into play. Equally, it allows to propose a tentative definition of supervenience without referring to the terminology of the possible worlds semantics.
Una modesta proposición para clasificar las teorías de los argumentos
Authors: Marraud Hubert
Published: August 2022

Propongo clasificar las teorías de los argumentos (o lógicas, en un cierto sentido) atendiendo a tres oposiciones: atomismo vs. holismo, generalismo vs. particularismo, e inferencismo vs. razonismo. Las dos primeras provienen de la teoría de las razones normativas y la tercera es de elaboración propia, aunque la necesidad de hacer alguna distinción similar ha sido defendida por varios autores. Finalmente, describiré el modelo holista, particularista y razonista de la dialéctica de los argumentos, contrastándolo con los modelos atomistas, generalistas e inferencistas predominantes.
Of Special Interest: Does International Aid Improve School Library Outputs? A Difficult Question to Answer
Authors: Hallein Joe , Phillips Judith
Published: August 2022

The UNESCO-funded School Library Development in the South Pacific Project was designed to assist in the development of school libraries and in the training of teachers in the use of libraries in Asia and Oceania. The project, approved in 1978, primarily involved the development of training courses for teachers and librarians and the training of library educators to teach the courses. The courses, developed first in conjunction with the University of the South Pacific, have been offered by several teacher training institutions in the Pacific. The researchers report on their attempt to use output measures to evaluate the effectiveness of the project. The difficulties in using this evaluation approach in developing countries are identified and discussed.
Analisis Faktor Penyebab Rendahnya Kemampuan Literasi Baca-Tulis Siswa Kelas 3 di SDN Sapit
Authors: Hijjayati Zul , Makki Muhammad , Oktaviyanti Itsna
Published: August 2022

Literasi baca-tulis merupakan kemampuan membaca, menulis, mencari serta mengolah dan memahami suatu informasi untuk. Penelitian ini bertujuan untuk mengetahui faktor penyebab rendahnya kemampuan literasi baca-tulis siswa kelas 3 di SDN Sapit dan upaya guru untuk mengatasi permasalahn rendahnya kemampuan literasi baca-tulis siswa. Sumber data yang digunakan dalam penelitian ini adalah empat orang siswa kelas 3 yang diketahui termasuk dalam kategori siswa dengan kemampuan literasi baca-tulis rendah, wali kelas  3, dan kepala sekolah.  Teknik pengumpulan data dilakukan dengan menggunakan observasi dan wawancara mendalam. Teknik analisis data yang digunakan adalah teknik  analisis data model Interactive (interactive model) yang terdiri dari beberapa komponen yaitu pengumpulan data, reduksi data, penyajian data dan penarikan kesimpulan. Hasil penelitian ini menunjukkan bahwa faktor penyebab rendahnya kemampuan literasi baca-tulis siswa kelas 3 di SDN Sapit dibebabkan oleh 2 faktor yaitu faktor internal dan faktor eksternal. Fakor internal meliputi rendahnya kemampuan intelegensi siswa, rendahnya minat belajar siswa, dan rendahnya motivasi belajar siswa. Faktor eksternal meliputi kurangnya perhatian orang tua, pengaruh televisi dan handphone, pengaruh teman bermain, kemampuan guru, serta sarana dan prasarana yang kurang memadai. Upaya yang dapat dilakukan guru untuk mengatasi permasalahan rendahnya kemampuan literasi baca-tulis siswa adalah dengan cara memberi motivasi, menerapkan kegiatan literasi baca-tulis, meningkatkan kemampuan guru, dan melakukan kolaborasi atau kerjasama dengan orang tua siswa.