bluuebunny/crossref_metadata_2025 huggingface dataset:
Propiedades físicas y biomasa fustal dePinus engelmanniiproveniente de unaplantación en Durango
Authors: Goche-Télles José Rodolfo , Carrillo-Parra Artemio , Razo-Zarate Ramón , Rodríguez-Laguna Rodrigo , Palacios-Mendoza Celina
Published: June 2023

Las plantaciones forestales comerciales son una estrategia para proteger de la sobreexplotación a los bosques naturales, por lo que es importante, conocer las propiedades físicas de su madera. El objetivo del trabajo fue determinar la calidad de la madera con base en sus propiedades físicas, y la cantidad de biomasa en una plantación de Pinus engelmannii de 17 años. El diámetro normal y altura total se midió en todos los árboles encontrados en 20 sitios rectangulares de 3.0 x 6.0 m distribuidos en cuatro líneas. En cada sitio, con un taladro de Pressler se tomó un núcleo de crecimiento a 1.30 m de altura, en dos árboles dominantes. Las propiedades físicas, densidad básica (DB), contenido de humedad (CH), contracciones volumétricas totales (CVT), y punto de saturación de la fibra (PSF) se determinaron aplicando las fórmulas específicas de cada componente. La biomasa se estimó con los valores de volumen y densidad básica, además de tres ecuaciones alométricas. Los resultados indican que la DB fue de 0.379 g cm−3, CH de 199.37%, CVT de 13.63%, PSF de 39.28% y promedio de biomasa fustal de 22.79 kg. El ANOVA mostró que la sección dentro del árbol influyó de manera significativa (p < 0.05) en DB y CH, con correlación negativa (r = - 0.96). La madera de la plantación es homogénea con respecto a la DB, CH y CVT, mientras que las dos primeras variables presentaron variación radial. La biomasa presentó relación con la densidad básica y el diámetro normal.
Contribución al conocimiento de las licofitas y los helechos de Españita, Tlaxcala, México
Authors: Castañeda-Díaz Saúl , Granados-Victorino Ro Linx , Sánchez-González Arturo
Published: June 2023

La falta de un listado completo de las licofitas y los helechos del estado de Tlaxcala motivó el presente trabajo, el objetivo fue documentar la riqueza de la pteridoflora de dicha entidad. De 2013 a 2018 se recolectaron 34 números de licofitas y helechos en el municipio de Españita; las plantasse herborizaron, identificaron y depositaron en el Herbario Jorge Espinoza Salas (JES). Los ejemplares corresponden a 8 familias, 15 géneros y 23 taxones; de estas, 2 son del género Selaginella P. Beauv. A partir de la información de las fuentes consultadas, se elaboró una lista de 58 taxones de la entidad, lo que implica que en Españita se encuentra el 39.6% de los taxones conocidos en Tlaxcala. De estos, 2 son nuevos registros: Marsilea mollis B. L. Rob. & Fernald y Polypodium guttatum Maxon. 20 taxones son de hábito terrestre; 2, son epífitas, y 1, acuático. La vegetación con mayor riqueza son los bosques, dominados en el dosel por Quercus spp. y Juniperus deppeana Steud. Pese a que la mayor proporción de la vegetación de Españita es secundaria, es posible encontrar en ella una riqueza considerable de especies susceptibles de ser conservadas.
Los ácidos húmicos reducen la adición de NPK y mejoran la calidad de mango
Authors: García-Santiago Juana Cruz , González-Fuentes José Antonio , Rojas-Duarte Alfonso , Hernández-Pérez Armando , Aureoles-Rodríguez Fabiola , Martínez-Mares Regina
Published: June 2023

El objetivo de este estudio fue demostrar que los ácidos húmicos (AH) reducen el uso de fertilizantes químicos e incrementan la calidad de frutos de mango cv. Ataulfo. Se utilizó un diseño completamente al azar con arreglo factorial 3x2. Los tratamientos evaluados fueron tres dosis de NPK (70, 100 y 130%) y dos dosis de AH (70 y 100 g planta−1). Los resultados muestran que al aplicar 70% de NPK en combinación de 100 g planta−1 de AH se obtuvo diferencia significativa en el peso fresco y diámetro polar de fruto; mientras que, al agregar 130% de NPK con 70 g planta−1 de AH se logró el mayor contenido de sólidos solubles totales y acidez titulable; en tanto que, el mayor contenido de vitamina C en los frutos se alcanzó al aplicar 100% de NPK con 100 g planta−1 de AH.
Análisis beneficio-costo de techos verdes extensivos en condiciones del trópico húmedo en Villahermosa, México
Authors: De la Cruz-Uribe Adriana , Jesús-Castañeda Miguel Ángel , Bolívar-Fuentes Rosa Cristina , Laines-Canepa José Ramón , Hernández-Barajas José Roberto
Published: June 2023

El objetivo fue analizar la rentabilidad del proyecto de instalación de techos verdes extensivos en viviendas ubicadas en un clima tropical húmedo, considerando el efecto de diversos parámetros sobre la relación beneficio-costo y el periodo de recuperación de la inversión. Los beneficios ambientales se estimaron a partir del análisis de ciclo de vida, mientras que el análisis de costos unitarios permitió determinar el efecto de la disponibilidad de materiales sobre los costos de instalación. El análisis monetizó dos beneficios ambientales: el ahorro de energía eléctrica y la captura de carbono, a partir del valor presente neto de los costos de instalación, mantenimiento, desmantelamiento y disposición final. Se determinó que la relación beneficio-costo varía entre 1.1 y 3.8 con periodos de recuperaciónde 3.4 a 8.9 años, en función de la disponibilidad de materiales, los indicadores económicos, las acciones de mantenimiento y la recompensa potencial con bonos de carbono al propietario.
Efecto de hidrogeles biodegradables sobre la retención de humedad y la germinación de alfalfa
Authors: Laredo-Alcalá Elan Iñaky , Salinas-Gutiérrez Azael , Chávez- Martínez Mónica Lizeth , Meléndez- Rentería Norma Paola , Barrera- Martínez Cynthia Lizeth , Salinas-Jasso Thalía Athenas , De León-Zapata Miguel Ángel
Published: June 2023

Los hidrogeles biodegradables obtenidos de fuentes naturales son materiales no tóxicos y con una gran capacidad de retención de agua, por lo que constituyen una valiosa alternativa para el uso racional del agua en aplicaciones agrícolas. El objetivo del presente trabajo fue evaluar el efecto de hidrogeles formulados a partir de polímeros naturales (alginato, polisacáridos de nopal, polisacáridos de aloe y quitosano) sobre la capacidad de retención de agua, el potencial biodegradable, así como la morfometría y germinación de plántulas de alfalfa en comparación con el hidrogel de poliacrilato de potasio (control comercial). Se caracterizaron un total de 36 tratamientos bajo condiciones controladas a nivel laboratorio, obteniendo que, en comparación con el control comercial, el hidrogel de PSGCL presentó el mayor valor de retención de agua y todos los demás tratamientos obtenidos a partir de polímeros naturales presentaron mayor potencial biodegradable. En cuanto a la germinación de plántulas de alfalfa, el hidrogel PSGP presentó el comportamiento más destacado en cuanto a porcentaje de germinación, altura de planta y desarrollo de follaje con respecto al testigo absoluto y al resto de los tratamientos.
El derecho a la vivienda digna como un derecho social y programático. Una de las reformas constitucionales pendientes en el Perú
Authors: Roel Alva Luis Andrés
Published: June 2023

El objetivo del estudio es analizar la propuesta de reforma constitucional sobre el derecho a una vivienda digna, presentada por el autor ante el Congreso de la República del Perú. Dicha propuesta se materializó a través del Proyecto de Ley N.º 05839/2020-CR, que busca incorporar el Derecho Fundamental a la Vivienda Digna en la Constitución Política del Perú. La intención de esta propuesta es incluir el numeral 25 en el artículo 2° de la Constitución peruana, con el fin de integrar el derecho fundamental a la vivienda digna y adecuada en el conjunto de derechos explícitamente reconocidos por la Carta Magna peruana, de manera que el Estado pueda implementar las acciones y medidas necesarias para garantizar su acceso. Así, este derecho adquiere mayor relevancia en el contexto de la pandemia de la Covid-19. En efecto, la crisis sanitaria ha expuesto aún más las desigualdades existentes y ha acentuado las dificultades de las personas más desfavorecidas y vulnerables para acceder a una vivienda adecuada y digna, por lo tanto, consolidar la propuesta de reforma constitucional se vuelve crucial para garantizar la dignidad de las personas yproteger sus derechos fundamentales.
Las personas LGBT en prisiones
Authors: Bautista Tinco Jessica
Published: June 2023

El artículo recopila información sobre los actos de violencia que sufren las personas lesbianas, gays, bisexuales, trans o transgénero (LGBT) en libertad y en prisión dentro de algunos Estados miembros de la Organización de los Estados Americanos (OEA). De esta forma, se estudia los instrumentos internacionales de protección de derechos humanos del Sistema Universal e Interamericano para verificar su evolución interpretativa hacia la prohibición de discriminación de las personas en razón a la orientación sexual e identidad de género. Así, también, estudia los principios soft law de protección de las personas privadas de libertad y compila los principales estándares específicos sobre el tratamiento diferenciado a las personas LGBT en prisiones emitidos por la Corte Interamericana de Derechos Humanos y suaplicación en algunos países latinoamericanos.
Añaños Bedriñana, Karen G. Los Derechos Humanos en el Derecho Constitucional Latinoamericano, Editorial Universidad de Granada (Eug), Colección Eirene, Granada, 2021, 284 pp
Authors: Justo Callo Jenny Elizabeth 
Published: June 2023

Este artíuclo reseña: Añaños Bedriñana, Karen G. Los Derechos Humanos en el Derecho Constitucional Latinoamericano, Editorial Universidad de Granada (Eug), Colección Eirene, Granada, 2021, 284 pp
„Ohne Worte“ – Ein Stummfilm als Sprechanlass zum Reden über Krieg im Unterricht
Authors: Kaltseis Magdalena
Published: June 2023

Die Auseinandersetzung mit Krieg im Unterricht ist ein bildungspolitischerAuftrag. Es gibt bereits eine Fülle an verschiedenen Unterrichtsmaterialien zudiesem Thema – für dessen Behandlung im (Fremd-)Sprachenunterricht wurden bisher jedoch kaum Vorschläge gemacht. Im vorliegenden Beitrag wird daher am Beispiel des Kurzfilms Bez slov (Ohne Worte) illustriert, wie die Thematisierung von Krieg im Allgemeinen sowie des Kriegs in der Ukraine im Besonderen im Deutschunterricht in der Sekundarstufe II erfolgen kann.
A pintura de perspectiva no forro das igrejas da comarca de vila do príncipe
Authors:   Universidade Federal de Ouro Preto, Araujo Junior Delson Aguinaldo de
Published: June 2023

Este trabalho pretende discutir a pintura de perspectiva com falsa arquitetura na comarca de Vila do Príncipe, atual cidade do Serro. Tomaremos como referência o artista português Caetano Luiz de Miranda, que realizou excelentes trabalhos no círculo do diamante, sendo de sua autoria o forro da capela do Bom Jesus do Matozinho, no Serro. Devido ao declínio e estagnação econômica, a Comarca do Serro Frio, com sede em Vila do Príncipe, manteve sua constituição arquitetônica intacta, chegando aos nossos dias em grande originalidade do período colonial e tendo um acervo entre os mais importantes no círculo do diamante. Na pintura religiosa, alcançou qualidades invejáveis, com tramas de rebuscada perspectiva de grande perfeição. No Serro, encontramos obras do pintor Caetano Luiz de Miranda, que trabalhou na capela do Bom Jesus do Matozinho, onde consta, no medalhão central do teto da capela, o tema da narração do recolhimento do Cristo Crucificado na praia de Portugal. Esta é uma grandiosa composição ornamental, com quatro belíssimos anjos, de estilo lusitano. Em volta do medalhão central, temos uma pintura balaustrada sinuosa, composta em perspectiva, tendo em seu parapeito belos anjos entre graciosos arranjos florais com amplos detalhes decorativos. Outra grande influência na região de Vila do Príncipe vem do pintor português José Soares de Araújo. Datada sua presença na capitania a partir de 1765, desempenhou amplo trabalho em Diamantina na linha da perspectiva arquitetônica de estilo barroco.
Um debate sobre o parnaso de Mantegna
Authors:   Universidade Estadual de Campinas, Carvalho Gustavo Campos de
Published: June 2023

O objetivo do trabalho é apresentar um debate a respeito do quadro Parnaso de Mantegna. O objeto a ser focalizado será a relação no quadro entre o casal Vênus e Marte, e a figura expressiva de Vulcano. As interpretações a respeito do trio são divergentes entre os historiadores da arte. Estaria Vênus cometendo adultério e sendo flagrada por seu marido furioso? Ou a relação do casal Vênus e Marte seria a de legítimos marido e mulher? Sendo esta a alternativa correta, como interpretar a figura de Vulcano? E como relacionar o Cupido com o trio? Como os outros elementos ajudariam a entender a trama? Esta questão é complicada sobretudo devido à encomenda pela qual a obra fora produzida. A obra fora encomendada por Isabela D’Este para compor seu studiolo. O problema das associações em parte é resultado da identificação da figura de Isabela D’Este com a Vênus. Qual seria o sentido do projeto iconográfico encomendado por ela para seu studiolo? Tal debate fora travado por historiadores da arte através de publicações de revistas especializadas como THE ART BULETIM e JOURNAL OF WARBURG AND COURTAULD INSTITUTES. Foram protagonistas deste debate: Edgar Wind, E. TietzeConrat, E. H. Gombrich e Roger Jones.
Hieróglifos: farpa como metáfora
Authors:   Universidade Federal de Goiás, Carvalho Rosane Andrade de
Published: June 2023

Este artigo versa sobre o conjunto de trabalhos da série Hieróglifos do artista goiano Paulo Fogaça (1936), realizado durante os anos 1970. O foco da análise recai sobre os processos e procedimentos tomados pelo artista para comentar os acontecimentos sociais e políticos do Brasil gerados pelas ações do governo militar que se encontrava no poder.
À imagem e semelhança: as mudanças e permanências na figuração de crianças nas pinturas de Eliseu Visconti, Vicente do Rego monteiro, Lasar Segall e Tarsila do Amaral
Authors:   Pontifícia Universidade Católica de Minas Gerais, Reis Magali dos
Published: June 2023

O estudo analisa a imagem da criança nas pinturas de Eliseu Visconti, Vicente do Rego Monteiro, Tarsila do Amaral e Lasar Segall. Na pintura crianças tornam-se anjos, meninas enlaçam-se e enlaçam a composição da obra, corpos repousam sobre lençóis, meninos transfiguram a inquietude da puerícia. As paisagens são permeadas pelos enigmas da infância. As imagens da criança não são retratos de certa infância, o que faz a sua força é que elas são imagens políticas e inseparavelmente imagens de um inconsciente social, e sob esta ótica, são registros de corpos sempre falados, descritos e analisados por adultos, não tendo voz própria, sobre as formas como vêm sendo interpretados, expressos, percebidos.
A preservação do patrimônio artístico: mapeamento dos bens móveis tombados do modernismo brasileiro
Authors:   Universidade Estadual de Campinas, Santos Vivian Palma Braga dos
Published: June 2023

Em contraposição ao que se pode postular num primeiro momento, o conjunto de bens tombados que diz respeito ao período do Modernismono Brasil chega a ser tão extenso quanto o encontrado no período do Barroco. Por vezes nos remetemos a um Modernismo expressivo e reconhecido por inovações da arquitetura, porém, é nas artes plásticas que a relação efetiva com uma busca de identidade nacional é verificada com maior intensidade. Essa relação possibilita a identificação de um diálogo mais claro entre o Movimento e o IPHAN. O Modernismo encontrou principalmente nessa instituição um canal de solidificação e concretização para suas idéias nacionalistas. Através de um minucioso levantamento dentre outras quatro instituições preservacionistas do Brasil foi possível localizar qual a produção hegemônica do período com relação aos bens móveis artísticos; o território principal dessa produção, bem como de tombamento e exposição. Observando que a abordagem escolhida foi o Modernismo de fases, considerou-se uma administração de fases também quanto à administração do IPHAN (e em subfases), o que possibilitou determinar períodos hegemônicos na liderança do IPHAN quanto ao tombamento dos Bens Móveis do Modernismo Brasileiro.
Conservação e inovação: referências centrais para as políticas públicas do patrimônio
Authors:   Universidade Estadual de Campinas, Gallo Haroldo
Published: June 2023

Para proceder à escolha e delimitação de uma temática para esta mesa redonda, cuja abordagem percorre o universo da história da arte, do patrimônio e das políticas públicas, procurei eleger uma questão que ao mesmo tempo perpassasse a atualidade de toda a temática e que envolvesse minhas preocupações e experiências como arquiteto e pesquisador.
Transparência no MASP: exposições didáticas
Authors:   Universidade Estadual de Campinas, Politano Stela
Published: June 2023

Este pequeno devaneio visa pensar a idéia de transparência como objeto apropriado pela arte contemporânea servindo primeiramente de suporte (vidro) e, posteriormente como a própria obra de arte. Para tanto, escolheuse como pano de fundo a expografia do Museu de Arte de São Paulo – MASP - da rua 7 de Abril, de 1947 a 19511 - mas especificamente as exposições didáticas - momento especial de profusão e inclusão de novas idéias e propostas no campo artístico. Define-se qual a importância da transparência nas artes e nos museus, percorrendo a idéia de expografia proposta pelo MASP, inserido este em momento decisivo em São Paulo (família artística paulista, estrangeiros no país, pós-guerra, mudança no olhar para as artes, passagem da figuração para a abstração), que buscava, através de painéis didáticos e “transparentes”, levar ao espectador novas idéias sobre arte.
COVID-19 Vaccine Hesitancy and Negative Attitudes Perceived by Individuals Who do not Accept COVID-19 Vaccines: A Qualitative study
Authors: SU TOPBAŞ Zehra , ŞİMŞEK Nuray
Published: June 2023

Abstract

Objective: It has been noted that in different parts of the world there are a considerable number of people who have a negative attitude to coranavirus vaccines. Therefore, the possible causes of hesitancy and rejection towards COVID-19 vaccine have been found to be worth investigating. In this process, where fierce discussions have been raised, the reactions of individuals who have not received the COVID-19 vaccine from their environment have also been evaluated within the scope of this study.

Methods: Study data were collected between November, 2021 and February, 2022. Within the scope of the study, semi-structured interviews were conducted with 14 participants. The data were analyzed by the method of inductive thematic analysis.

Result: As a result of the analysis, it was found that the participants found COVID-19 vaccines unnecessary, ineffective and/or risky. A number of participants have stated that COVID-19 vaccines may be part of larger goals. However, some participants reported that they felt pressure from their environment and perceived negative attitudes.

Conclusion: It is recommended to provide accurate information about the disease and vaccination, to be transparent and to show an empathetic approach to these individuals.
Representing Islam: old myths in the new medium
Authors: Nazaruddin Muzayin
Published: June 2023

This study focuses on the adaptation of Islamic-mystic magazines into religious soap operas in Indonesia. This study concludes that for the producers, Islamic soap opera plays an economic function: to get more audiences and more economic profit. But, for the audience, religious soap opera plays a cultural function: to maintain and reconfirm their traditional beliefs. It leads us to the theoretical conclusion that this adaptation practice is a mechanism of self-translation of Javanese culture.
When Media Owning Sports Club: Republika Editorial Policy in News Coverage about Inter Milan and Satria Muda
Authors: Ramadan Fadlan A. , Prastya Narayana M.
Published: June 2023

This paper aims to know about content of the news and editorial policy in Republika, when the media coverage news about Inter Milan and Satria Muda Pertamina. Both of the sport teams are owned by Erick Thohir, the boss of Republika. Based on literature, the interest of mass media owner and newsroom policy often difference. Because mass media owner have their goals, meanwhile the newsroom should obey the professional journalism standard. At the practice, the newsroom make usually make a compromise.This paper uses qualitative research methods. The data collecting technique are using documentary research and interviews. The documentary research held by collecting and analyzing news about Inter Milan and Satria Muda in Republika daily newspaper (print edition). The time period for Inter Milan news is August 2014 to October 2015 while Satria Muda in January to June 2016. At the time frame, both club did not win any competition that they were participated. So, at that time the club was in the negative period. The interviews held with the representative of the Republika sport section editor to confirm the result from text analysis.As the findings from text analysis, Republika always brings good news to Inter Milan and Satria Muda Pertamina, although both team was not winning the competition, and there were relatively much negative results in the single season. Republika explained that they have direct access to news sources from Inter Milan and Satria Muda Pertamina directly. So Republika will gain more information from both club than the other media. Not only in sporting theme (e.g. match results, preview, review), Republika sometimes deliver the news about the figure of Erick Thohir. Keywords : editorial policy, media ownership, sport journalism, sport communication
The Influence of Destination Image, Novelty Seeking, and Information Quality in Social Media: The Case of Media News Company Indonesian Tourism on Instagram
Authors: Zulzilah Siti , Prihantoro Edy , Wulandari Christiana
Published: June 2023

This study aims to determine how the influence of destination image, novelty seeking, and information quality in social media towards intention to visit a destination. Analysis was based on data collected from 400 respondents who followed Instagram account of @explorebandung, @explorejogja and @explorebali. Using the social information processing theory, we found that destination image, novelty seeking, and information quality on Instagram partially or simultaneously have a positive and significant effect on the visiting intention variable, with a fairly strong correlation value. Instagram, which is a new media, can be used as a trendy tool in digital tourism. The media news company on Instagram is considered effective if it's already known, interesting and has many followers. These findings are beneficial to both destination managers and the government in their efforts to improve and promote the Indonesian tourism as an attractive and unique destination to attract more tourists through social media..Keywords: Destination image; Novelty seeking; Information quality; Visiting intention; Social media network.
Exploring the Use of Mobile Instant Messaging Among Middle-aged Adults in Social Relationships Maintenance with Family and Friends
Authors: Lo Olivine Wai-yu
Published: June 2023

Smartphone has played a vital role in shaping our modern daily life, including gratifying our needs in entertainment, information search, and social networking. Nowadays, mobile instant messaging (MIM) has been adopted as a main communication tool not only by the younger generations, but also by the older groups. However, most studies have focused on how the young users communicate with their peers, while the middle-aged group has not received any proper attention from researchers. This study aims to examine middle-aged adults’ (40 to 60 years old) use of MIM as a complementing tool of the traditional communication forms to sustain relational involvements with their friends and family members. Applying a snowballing online survey method, this study has asked a group of students of a communication research class of a mid-size private university in Hong Kong to deliver the online questionnaire to their parents, also asked their parents to send the questionnaire to their middle-aged friends who have children. This study finds two major types of MIM functions being used: visual-based and audio-based. These functions are significantly related to three newly found relational gratifications: friendship maintenance, family relations maintenance, and troubleshooting. This study expands the understanding of specific MIM communication patterns among the respondents, also explores the age and gender differences in MIM communication. Keywords: Mobile instant messaging, relational maintenance gratifications, family relations, middle-aged adults.
IMAGE CAPTIONING: NOW EASILY DONE BY USING DEEP LEARNING MODELS
Authors:   Channasandra, Bangalore, India., S Namratha R Upadhya , R Meenakshi ,   Professor, Department of Computer Science and Engineering RNS Institute of Technology
Published: June 2023

Abstract—Image captioning helps the reader to understand the context that is to be conveyed. It is highly used in the applications like finding the missing or hidden patterns, in guiding the self driving cars, in robots which are automated using Artificial Intelligence and Machine Learning. It is also used to scrutinize large amount of images. This paper includes different image captioning models by using the concept of deep learning. Here we discuss about the frameworks like CNN-CNN, CNN-RNN and some more with their implementation overview with their advantages and disadvantages
Brain Cancer Detection using Deep Learning
Authors:   Associate Professor Computer Science and Engineering RNS Institute of Technology, J Sudhamani M , Sindhe Bharath R ,   Associate Professor Computer Science and Engineering RNS Institute of Technology
Published: June 2023

Late progressions in the field of cerebrum imaging innovation have empowered scientists to acquire new viewpoints on mind life systems and capability. Clinical experts depend vig- porously on these imaging components for early identification and treatment. Profound brain organizations (DNNs) have generally been powerful for order and division assignments. In any case, there is a requirement for a highlight decrease to work on the proficiency of DNNs. To address this need, a profound wavelet autoencoder (DWA) has been proposed in this article, which consolidates the element decrease capacities of autoencoders with the picture disintegration capacities of wavelet changes. The subsequent packed highlight set can be used for future DNN- based order errands. The proposed DWA-DNN picture classifier has been tried on a mind picture dataset, and its presentation has been contrasted with that of other existing classifiers, like Autoencoder-DNN and DNN. The proposed approach has shown predominant execution when considered in contrast to the presentation standards of different classifiers
Precision Agriculture
Authors:   Department of Computer Science R.N.S.Institute of Technology Bangalore, India, Kumari Anushka , K Bhavanishankar ,   Associate ProfessorDepart.of Computer ScienceR.N.S.Institute of Technology
Published: June 2023

The ability to manage fields not as a single unit but by dividing them into separate areas distinguishes precision farming from traditional agriculture. Technologies and techniques used to improve the crop farming is the main domain we are working under precision agriculture.Optical sensors that use the reflectivity of light placed on growing plants to monitor and record the data about soil and crops in real time are available. Electrochemical sensors,are those that monitor plant, soil, and external factors that have a direct impact on plant growth.. A prototype of an intelligent Agriculture Robot tailored exclusively for seed sowing tasks is exhibited. It is a four-wheeled vehicle driven by an LPC2148 microcontroller. Its operation is based on precision agriculture, which allows for effective seed planting at appropriate depths and distances within crops and rows that are specific to each crop species.This work presents a system for diagnosing cotton leaf diseases in India using image processing. The system uses SVM to classify diseases based on color and texture of images obtained from cotton fields using a digital camera. The images undergo pre-processing, including segmentation and feature extraction. The goal is to reduce loss of yield and productivity by early disease identification.
Evaluation of Jet Flooding in Distillation Column Olefins Plant on Naphtha to LPG Feed Substitution
Authors: Wijanarko Albertus , Hidayat Muslikhin , Sutijan Sutijan
Published: June 2023

The naphtha cracking process results in the production of ethylene, propylene, mixed C4, and pygas, which are all olefins. Distillation columns and cracking furnaces are the primary units of operation. The price of raw materials accounts for 80% of production costs. There is also the pos-sibility of using LPG, a less expensive raw material, in place of some of the naphtha. A change in the raw material will affect the operability of the distillation columns and influence the yield on the cracking side. To determine the best naphtha substitution for LPG without creating a hydraulic problem (Jet Flooding) in distillation columns, analysis utilizing simulation tools must be done. To simulate the substitution of naphtha for other feedstocks, a reliability model is being built by comparing simulation results with data from the actual plant. LPG flow is a free variable that is being used to substitute naphtha. The effects of economically advantageous naphtha substitution for LPG can be assessed with the use of simulation tools without impairing plant operability. Optimum naphtha substitution rate is 21.14% from base case which resulting jet flooding occurred at Propylene Fractionator No 2. By implementing this substitution case, benefit that can be driven $22,772.02/ hour.
Standard Lagrangians in Population Modeling and their Ecological Implications
Authors: Pham Diana T. , Musielak Zdzislaw E.
Published: June 2023

The Lagrangian formalism is developed for the population dynamics of interacting species that are described by several well-known models. The formalism is based on standard Lagrangians, which represent differences between the physical kinetic and potential energy-like terms. A method to derive these Lagrangians is presented and applied to selected theoretical models of the population dynamics. The role of the derived Lagrangians and the energy-like terms in the population dynamics is investigated, and it is shown that the obtained standard Lagrangians can be used to study oscillatory behavior of the models and the period of their oscillations, which may have ecological and environmental implications. These and other physical and biological insights gained from the derived standard Lagrangians are discussed.
Improving Separation Efficiency of Photogenerated Charges through Combination of Conductive Polythiophene for Selective Production of CH4
Authors: Deng Yiqiang , Tu Lingxiao , Wang Ping , Chen Shijian , Zhang Man , Xu Yong , Dai Weili
Published: June 2023

In today's society, mankind is confronted with two major problems: the energy crisis and the greenhouse effect. The artificial photosynthesis can use solar energy to convert greenhouse gas CO2 into high-value compounds, which is an ideal solution to alleviate the energy crisis and solve the problem of global warming. The combination of ZnO and polythiophenes (PTh) can make up for each other's drawbacks, thus improving the photoresponse behavior and separation efficiency of photogenerated carriers. PTh layer can transfer photogenerated electrons to ZnO, thereby extending the lifetime of photogenerated charges. The production rate of CH4 from photoreduction of CO2 with ZnO/PTh10 is 4.3 times that of pure ZnO, and the selectivity of CH4 is increased from 70.2% to 92.2%. The conductive PTh can absorb photons to induce π–π* transition, the photogenerated electrons can transfer from LUMO to the conduction band (CB) of ZnO, thus more electrons involve in the reduction of CO2.
Spatial Distribution and Driving Mechanisms of Rural Settlements in the Shiyang River Basin, Western China
Authors: Li Kaiming , Wang Min , Hou Wenbin , Gao Fuyuan , Xu Baicui , Zeng Jianjun , Jia Dongyu , Li Jun
Published: June 2023

In the context of the rural revitalization strategy, it is urgent to accurately grasp the spatial differentiation characteristics and influencing factors of rural settlements in underdeveloped arid inland river basins. Taking the Shiyang River Basin as an example, the rural settlements from 2000 to 2019 were obtained by visual interpretation using satellite remote sensing data and official statistical data. Following the logical of "state characteristics - evolutionary patterns - influence factors - layout optimization", the average nearest index, gravity-center migration model, spatial statistical analysis and other methods were used combine with GIS. The spatiotemporal pattern evolution characteristics of rural settlements in the past 20 years have been analyzed. The results revealed the following: 1) The distribution pattern of rural settlements in the study area is sheet-like and strip-shaped. The projects in the southeast are mostly distributed in a patchy pattern with high density, while the characteristics in the west and north are exactly opposite. The objects in the south are distributed in the alluvial area of rivers, while settlements in the north are located in the oasis area. 2) From 2000 to 2019, the scale of rural settlements in the Shiyang River Basin, where simultaneous occurrence of new-built and disappearing phenomena, shows an expansion trend that fast firstly and then slow. Spatially, rural settlements in the basin show a trend of clustering towards the southwest. 3) The distribution characteristics of rural settlements are close to water and roads, greatly influenced by urban-rural integration and ecological migration. The results will provide scientific basis for accelerating the modernization of rural areas, and the construction of new rural areas according to local conditions.
Anti-Inflammatory Effect and Signaling Mechanism of Glycine max Hydrolyzed With Enzymes From Bacillus velezensis KMU01 in a Dextran Sulfate Sodium-Induced Colitis Mouse Model
Authors: Lee Seung-Hyeon , Kim Ha-Rim , Noh Eun-Mi , Park Jae Young , Kwak Mi-Sum , Jung Ye-Jin , Yang Hee-Jong , Ryu Myeong-Seon , Seo Hyangyim , Jang Hansu , Kim Seon-Young , Park Mi Hee
Published: June 2023

The purpose of this study was to investigate the effect that Glycine max hydrolyzed with enzymes from Bacillus velezensis KMU01 has on dextran sulfate sodium (DSS)-induced colitis in mice. Hydrolysis improves functional health through the bioconversion of raw materials and increase in intestinal absorption rate and antioxidants. Therefore, G. max was hydrolyzed in this study using a food-derived microorganism, and its anti-inflammatory effect observed. Enzymatically hydrolyzed G. max (EHG) was orally administered once daily for four weeks before DSS treatment. Colitis was induced in mice through consumption of 5% (w/v) DSS in drinking water for eight days. Results showed that EHG treatment significantly alleviated DSS-induced body weight loss and decreased the disease activity index and colon length. In addition, EHG markedly reduced tumor necrosis factor-a, interleukin (IL)-1b, and IL-6 production, and increased that of IL-10. EHG improved DSS-induced histological changes and intestinal epithelial barrier integrity in mice. Moreover, we found that the abundance of 15 microorganisms changed significantly; that of Proteobacteria and Escherichia coli, which are upregulated in patients with Crohn’s disease and ulcerative colitis, decreased after EHG treatment. These results suggest that EHG has a protective effect against DSS-induced colitis and is a potential candidate for colitis treatment.
Label-Free Analysis of Urine Samples by In-Flow Digital Holographic Microscopy
Authors: Gigli Lucia , Braidotti Nicoleta , Lima Maria Augusta do R.F.B. , Ciubotaru Catalin , Cojoc Dan
Published: June 2023

Urinary tract infections are among the most frequent infectious diseases and require screening of a great amount of urine samples from patients. However, a high percentage of samples results as negative after urine culture plate test (CPT), demanding a simple and fast preliminary technique to screen out the negative samples. We propose a digital holographic microscopy (DHM) method to inspect fresh urine samples flowing in a glass capillary for 3 minutes, recording holograms at 2 frames per second. After digital reconstruction, bacteria, white and red blood cells, epithelial cells and crystals were identified and counted and the samples were classified as negative or positive according to clinical cutoff values. Taking CPT as reference, we processed 180 urine samples and compared the results with those of urine flow cytometry (UFC). Using standard evaluation metrics for our screening test, we found similar performance for DHM and UFC, indicating DHM as a suitable and fast screening technique retaining several advantages. As a benefit of DHM, the technique is label-free and does not require sample preparation. Moreover, the phase and amplitude images of the cells and other particles present in urine are digitally recorded and can serve for further investigation afterwards.
Expansion Work Recovery of Hydrogen for a FC-Truck-Tentative Design of an Expansion Machine
Authors: Rufer Alfred
Published: June 2023

Hydrogen powered vehicles use high-pressure reservoirs from which the gas is transferred to the low-pressure fuel-cell via a classical pressure reduction valve. In these systems no expansion work is recovered and the question is addressed of the potential to increase the global efficiency by using an expansion machine between the reservoir and the electrochemical reactor. This paper investigates the feasibility of such an expansion machine, evaluates the mechanical constraints in terms of forces, torques and produced power by numeric simulation. It further evaluates the energetic contribution to the whole conversion chain from the hydrogen reservoir to the common electrical network on board. A low energy contribution of the expansion system addresses the question of the real benefit of such an investment.
From Beneficial Arthropods to Soil-Dwelling Organisms: A Review on Millipedes
Authors: Mawcha Kahsay Tadesse , Hategekimana Athanase , Kajuga Joelle , Ndolo Dennis , Yang Wenxiang
Published: June 2023

Millipedes are soil-dwelling organisms that play a crucial role in nutrient cycling and soil health. They can increase the availability of nitrogen and phosphorus, as well as accelerate the decomposition of organic matter in the soil. However, millipedes can also cause significant damage to crops, leading to yield losses and indirect effects on soil quality and plant health. Effective management of millipedes may involve a combination of cultural and chemical control methods tailored to specific crops and environmental conditions. Integrated pest management strategies, emphasizing a holistic, ecosystem-based approach, may be particularly effective for managing millipede populations while minimizing negative impacts on the environment. Monitoring is also essential for identifying areas of high millipede activity and targeting control measures accordingly. This review provides recent research progress on the biology, ecology, and agricultural pest status of millipedes, as well as IPM strategies to control their infestation in agricultural crops and beyond.
KV Channel-Interacting Proteins in Neurological and Cardiovascular System: An Updated Review
Authors: Wu Leyi , Song Yujuan , Zhang Cheng-Lin , Liu Jie
Published: June 2023

KV channel-interacting proteins (KChIPs) belong to a family of Ca2+-binding EF-hand proteins that are able to bind to the N-terminus of the KV4 channel α-subunits. As the auxiliary subunit, KChIPs are critically involved in regulating the amplitude and gating properties of KV4 channels by modulating their cell surface trafficking, voltage-dependent activation, inactivation kinetics, and recovery rate from inactivation. IKs, ICa,L, and INa can also be regulated by KChIPs. KChIPs are predominantly expressed in the brain and heart, where they contribute to the maintenance of the excitability of neurons and cardiomyocytes by modulating the KV4 currents. Interestingly, all KChIPs can act as transcription factors to control the expression of genes involved in pain, memory, and circadian regulation. Altered expression of KChIPs has been implicated in the pathogenesis of many diseases, such as arrhythmia, heart failure, Alzheimer's disease, etc. In this review, we summarize the research progress of KChIPs in their structural properties, physiological functions, and pathological roles in disease progression, and provide an overview of the therapeutic potential of KChIPs as pharmacological targets for associated disorders.
Multi Parameter Optimization of Stator Coreless Disk Motor Based on Orthogonal Response Surface Method
Authors: Sun Hui Qin , Li Ying , Zhang Lu Cheng , Xue Ze Zhao , Hu Wei Guang , Li Guo Shuai , Guo Ying jun
Published: June 2023

In response to the structural optimization problem of PCB stator coreless disc motors, the orthogonal response surface method was used to optimize the motor structure, determine the basic parameters of the motor preliminarily, and conduct orthogonal experiments on the motor parameters based on the optimization design objectives, The optimization factors were the quantity of magnetic pole of the motor rotor, the ratio of main/auxiliary pole size, the thicknessof the permanent magnet, and the air gap length.The motor torque，the amplitude of magnetic density of the air gap and waveform distortion rateare used as optimization objectives. The motor parameters that make the motor torque reach the maximum, the air gap magnetic density maximum, and the waveform distortion rate minimum. Due to the use of PCB plates instead of motor stator cores in PCB coreless disc motors,The service life of the PCB board during motor operation will be reduced with the temperature rise generated by the stator winding To solve this problem, the response surface analysis of the motor is carried out to reduce the temperature rise of the stator windings during the operation of the motor. PCB board and stator winding are the main factors affecting the temperature rise of the motor.Taking the thickness of the PCB board, the hole diameter on the board, and the uneven width of the stator winding as optimization factors, the motor parameters with the lowest temperature rise of the motor winding are obtained. Simulation analysis is conducted using Ansys/Maxwell software, and the results prove the feasibility of optimization.
Cobalt Metal: Overview of Deposits, Reserves, Processing, and Recycling
Authors: Picazo-Rodriguez Nallely G , Toro Norman , Román ,Marleth Roxana Garza , Soriano Diego Alejandro Tamayo , Galleguillos Madrid Felipe M. , Jamett Ingrid , Gálvez Edelmira , Moreno Cedillos José Guadalupe
Published: June 2023

Cobalt, like other critical elements, is gaining in importance today. The great technological advances and the deep knowledge of the physical and chemical properties of this element have allowed to enhance its applications in various fields, such as: catalysts, paints, alloys for the mechanical and aerospace industries, as well as the medical sector and in recent times, its use within the rechargeable battery industry. The main exploitable deposits are in the Democratic Republic of the Congo, which have economic potential due to a strong influence on their mineralization processes. However, the growing demand for cobalt and the search for less dependence on African deposits leads to targeting other regions, so it is necessary to carry out exhaustive exploration to find out the potential of its reserves for a subsequent benefit of the mineral. Generally, cobalt comes as a by-product of the extraction of other metallic minerals, mainly from Cu-Co, Ni-Co, Ni-Cu-Co deposits. From the above, a first review is carried out on the differences that exist in the geochemical, mineralogical and forecast properties that exist within the different deposits that harbor cobalt. As a second review topic, it delves into efficient processing for cobalt recovery, which is generally carried out by flotation, acid leaching, in addition to its recovery from secondary sources, such as batteries and metallurgical waste. However, generally speaking there is still a vast lack of fundamental knowledge about the processability of cobalt. Said processing has been affected from the point of view of mineralogy, that is, understanding and knowing the cobalt-bearing minerals, as well as gangue mineralogy, these aspects exercise significant control during their processing and selection of the most appropriate route. suitable for cobalt extraction (leaching and/or flotation). In this context, the document concludes with a vision of the challenges that the mining industry must implement to enter circular economy models, mainly in the creation of sustainable processes from secondary sources.
Micronutrients in Pregnancy After Bariatric Surgery: A Narrative Review
Authors: Bretón Irene , Ballesteros-Pomar Maria D. , Calle-Pascual Alfonso , Alvarez-Sala Luis Antonio , Rubio-Herrera Miguel Angel
Published: June 2023

Abstract: Bariatric surgery is increasingly used in women of childbearing age due to the rising prevalence of obesity and the effectiveness and availability of this treatment. Pregnancy in women with previous bariatric surgery deserves special attention. Weight loss induced by surgery re-duces the risks that obesity poses for pregnancy. But on the other hand, decreased intake and malabsorption may increase the risk of malnutrition and micronutrient deficiency and negatively affect maternal and foetal health. The aim of this narrative review is to provide an updated anal-ysis on the impact of different bariatric surgery techniques on minerals and micronutrients status nutritional status during pregnancy and the possible effect on maternal-foetal health.
Clinical Significance of Pose Estimation Methods Compared to Radiographic Parameters in Adolescent Idiopathic Scoliosis Patients
Authors: Go Goto , Ariga Kousuke , Tanaka Nobuki , Oda Kotaro , Haro Hirotaka , Ohba Tetsuro
Published: June 2023

Background. Pose estimation based on deep learning has been expected to be a breakthrough method to increase the accuracy of clinical photographic evaluation and to decrease interobserver errors. The purpose is to quantify pose estimation from photography of patients with adolescent idiopathic scoliosis (AIS) using open-source software packages and determine correlations between parameters obtained by radiography and photography. Methods. We included 12 consecutive patients with AIS treated with spinal correction surgery. Photographs were taken preoperatively using a tripod-mounted camera (iPhone 13Pro) on an X-ray tube head. To assess photographic parameters obtained by photography, we defined 17 points to analyze posture and define parameters. Results. In the sagittal plane, there was a significant correlation between the radiographic trunk tilt angle and the photographic sagittal trunk tilt angle of the shoulder–hip and ear–hip. In the coronal plane, there was a significant correlation between the radiographic clavicle angle and the photographic shoulder height angle, and the radiographic C7–CSVL and the photographic coronal trunk tilt angle. Conclusions. Posture analysis by photography using popular mobile devices has clinical utility for improving and promoting the screening and early detection of AIS because it is simple, without patient exposure to X-ray radiation.