bluuebunny/crossref_metadata_2025 huggingface dataset:
A Comprehensive Review of the Effects of Different Simulated Environmental Conditions and Hybridization Processes on the Mechanical Behavior of Different FRP Bars
Authors: Mirdarsoltany Mohammadamin , Abed Farid , Homayoonmehr Reza , Alavi Nezhad Khalil Abad Seyed Vahid
Published: July 2022

When it comes to sustainability, steel rebar corrosion has always been a big issue, especially when they are exposed to harsh environmental conditions, such as marine and coastal environments. Moreover, the steel industry is to blame for being one of the largest producers of carbon in the world. To supplant this material, utilizing fiber-reinforced polymer (FRP) and hybrid FRP bars as a reinforcement in concrete elements is proposed because of their appropriate mechanical behavior, such as their durability, high tensile strength, high-temperature resistance, and lightweight-to-strength ratio. This method not only improves the long performance of reinforced concrete (RC) elements but also plays an important role in achieving sustainability, thus reducing the maintenance costs of concrete structures. On the other hand, FRP bars do not show ductility under tensile force. This negative aspect of FRP bars causes a sudden failure in RC structures, acting as a stumbling block to the widespread use of these bars in RC elements. This research, at first, discusses the effects of different environmental solutions, such as alkaline, seawater, acid, salt, and tap water on the tensile and bonding behavior of different fiber-reinforced polymer (FRP) bars, ranging from glass fiber-reinforced polymer (GFRP) bars, and basalt fiber-reinforced polymer (BFRP) bars, to carbon fiber-reinforced polymer (CFRP) bars, and aramid fiber-reinforced polymer (AFRP) bars. Furthermore, the influence of the hybridization process on the ductility, tensile, and elastic modulus of FRP bars is explored. The study showed that the hybridization process improves the tensile strength of FRP bars by up to 224% and decreases their elastic modulus by up to 73%. Finally, future directions on FRP and hybrid FRP bars are recommended.
Food Culture and Sustainable Development: Evidence from Firm-Level Sustainable Total Factor Productivity in China
Authors: Sun Guangfan , Cao Xiangyu , Chen Junyi , Li Hanqi
Published: July 2022

This article studied whether food culture plays an important role in affecting the firm-level sustainable development. We linked firm-level sustainable total factor productivity to spicy-taste related food culture in China and found that firms in regions in which spicy culture plays a more prominent role showed higher sustainable productivity. Tests using the regional sunshine as an instrument suggested a causal interpretation. Moreover, firms more exposed to spicy culture showed more frequent equity incentive behavior, higher equity incentive intensity, and higher proportion of female executives, which suggests that the more proactive management behavior can be led by regional spicy culture. We also found that, compared with small-size firms, non-state-owned firms, and non-export firms, regional spicy culture has a stronger impact on large firms, state-owned firms, and export firms. Our results reveal the impact of food culture on the firm-level sustainable development.
Modeling and Optimization of Energy and Exergy Parameters of a Hybrid-Solar Dryer for Basil Leaf Drying Using RSM
Authors: Parhizi Zahra , Karami Hamed , Golpour Iman , Kaveh Mohammad , Szymanek Mariusz , Blanco-Marigorta Ana M. , Marcos José Daniel , Khalife Esmail , Skowron Stanisław , Adnan Othman Nashwan , Darvishi Yousef
Published: July 2022

This study deals with the optimization of energetic and exergetic parameters of a hybrid-solar dryer to dry basil leaves under determined experimental conditions at three air temperatures (40 °C, 55 °C, and 70 °C) and three bed thickness levels (2, 4, and 6 cm). The optimization of the thermodynamic parameters was performed using the response surface method (RSM) based on the central composite design (CCD) and the desirability function (DF) to maximize the drying rate, exergy efficiency, improvement potential rate and the sustainability index, and to minimize the energy utilization, energy utilization ratio and exergy loss rate. These parameters were calculated on the basis of the first and second laws of thermodynamics as the response variables. Based on the results obtained, it was determined that the optimal conditions for basil drying were at a drying air temperature of 63.8 °C and a bed thickness of 2 cm. At this point, the parameters of the drying rate, energy utilization, energy utilization ratio, exergy efficiency, exergy loss rate, improvement potential rate and sustainability index were obtained with the maximum utility function (D = 0.548) as 0.27, 0.019 (kJ/s), 0.23, 65.75%, 0.016 (kJ/s), 1.10 (kJ/s) and 0.015, respectively.
Analysing the Impact of Human Capital on Renewable Energy Penetration: A Bibliometric Reviews
Authors: Adepoju Omoseni Oyindamola , David Love Opeyemi , Nwulu Nnamdi Ikechi
Published: July 2022

In contributing to reducing the adverse effects of non-renewable energy sources, this paper researched how human capital can enhance the penetration level of renewable energy, which is highly abundant in Nigeria, Sub-Saharan Africa. This paper, using qualitative research methodology through Bibliometric analysis, reviewed three hundred and three (303) papers published between the year 2000 and March 2022. The bibliometric study covered publications per author, publications per country, research focus based on co-occurrence keywords, and research thread. The findings revealed that publications on how human capital can aid renewable energy penetration have been slow and in an infant stage in the past two decades. It also shows that there have been eighteen (18) papers on the subject papers in the last twenty years, showing the low level of human capital development in the energy sector. The intellectual patterns via the co-occurrence of keywords shows five (5) clusters, which are economics of renewable energy sources, human capital factors in environmental management, economic factors in energy supply and demand, sustainable energy factors, and human capital development and economy. These cluster areas revealed how human capital could be developed to increase the penetration level of the abundant renewable energy in the world. Thus, this paper recommends intensive efforts in optimizing human capital through inter-organizational collaboration on renewable energy technologies and periodic training.
Polycyclic Aromatic Hydrocarbons (PAHs) in the Dissolved Phase, Particulate Matter, and Sediment of the Sele River, Southern Italy: A Focus on Distribution, Risk Assessment, and Sources
Authors: Montuori Paolo , De Rosa Elvira , Di Duca Fabiana , De Simone Bruna , Scippa Stefano , Russo Immacolata , Sarnacchiaro Pasquale , Triassi Maria
Published: July 2022

The Sele River, located in the Campania Region (southern Italy), is one of the most important rivers and the second in the region by average water volume, behind the Volturno River. To understand the distribution and sources of polycyclic aromatic hydrocarbons (PAHs) in the Sele River, water sediment samples were collected from areas around the Sele plain at 10 sites in four seasons. In addition, the ecosystem health risk and the seasonal and spatial distribution of PAHs in samples of water and sediment were assessed. Contaminant discharges of PAHs into the sea were calculated at about 1807.9 kg/year. The concentration ranges of 16 PAHs in surface water (DP), suspended particulate matter (SPM), and sediment were 10.1–567.23 ng/L, 121.23–654.36 ng/L, and 331.75–871.96 ng/g, respectively. Isomeric ratio and principal component analyses indicated that the PAH concentrations in the water and sediment near the Sele River were influenced by industrial wastewater and vehicle emissions. The fugacity fraction approach was applied to determine the trends for the water-sediment exchange of 16 priority PAHs; the results indicated that fluxes, for the most part, were from the water into the sediment. The toxic equivalent concentration (TEQ) of carcinogenic PAHs ranged from 137.3 to 292.6 ngTEQ g−1, suggesting that the Sele River basin presents a definite carcinogenic risk.
Deepening the Whole Transcriptomics of Bovine Liver Cells Exposed to AFB1: A Spotlight on Toll-like Receptor 2
Authors: Iori Silvia , Pauletto Marianna , Bassan Irene , Bonsembiante Federico , Gelain Maria Elena , Bardhi Anisa , Barbarossa Andrea , Zaghini Anna , Dacasto Mauro , Giantin Mery
Published: July 2022

Aflatoxin B1 (AFB1) is a food contaminant metabolized mostly in the liver and leading to hepatic damage. Livestock species are differently susceptible to AFB1, but the underlying mechanisms of toxicity have not yet been fully investigated, especially in ruminants. Thus, the aim of the present study was to better characterize the molecular mechanism by which AFB1 exerts hepatotoxicity in cattle. The bovine fetal hepatocyte cell line (BFH12) was exposed for 48 h to three different AFB1 concentrations (0.9 µM, 1.8 µM and 3.6 µM). Whole-transcriptomic changes were measured by RNA-seq analysis, showing significant differences in the expression of genes mainly involved in inflammatory response, oxidative stress, drug metabolism, apoptosis and cancer. As a confirmatory step, post-translational investigations on genes of interest were implemented. Cell death associated with necrosis rather than apoptosis events was noted. As far as the toxicity mechanism is concerned, a molecular pathway linking inflammatory response and oxidative stress was postulated. Toll-Like Receptor 2 (TLR2) activation, consequent to AFB1 exposure, triggers an intracellular signaling cascade involving a kinase (p38β MAPK), which in turn allows the nuclear translocation of the activator protein-1 (AP-1) and NF-κB, finally leading to the release of pro-inflammatory cytokines. Furthermore, a p38β MAPK negative role in cytoprotective genes regulation was postulated. Overall, our investigations improved the actual knowledge on the molecular effects of this worldwide relevant natural toxin in cattle.
Omicron BA.1 Mutations in SARS-CoV-2 Spike Lead to Reduced T-Cell Response in Vaccinated and Convalescent Individuals
Authors: Emmelot Maarten E. , Vos Martijn , Boer Mardi C. , Rots Nynke Y. , de Wit Jelle , van Els Cécile A. C. M. , Kaaijk Patricia
Published: July 2022

Omicron BA.1 variant can readily infect people with vaccine-induced or naturally acquired SARS-CoV-2 immunity facilitated by escape from neutralizing antibodies. In contrast, T-cell reactivity against the Omicron BA.1 variant seems relatively well preserved. Here, we studied the preexisting T cells elicited by either vaccination with the mRNA-based BNT162b2 vaccine or by natural infection with ancestral SARS-CoV-2 for their cross-reactive potential to 20 selected CD4+ T-cell epitopes of spike-protein-harboring Omicron BA.1 mutations. Although the overall memory CD4+ T-cell responses primed by the ancestral spike protein was still preserved generally, we show here that there is also a clear loss of memory CD4+ T-cell cross-reactivity to immunodominant epitopes across the spike protein due to Omicron BA.1 mutations. Complete or partial loss of preexisting T-cell responsiveness was observed against 60% of 20 nonconserved CD4+ T-cell epitopes predicted to be presented by a broad set of common HLA class II alleles. Monitoring such mutations in circulating strains helps predict which virus variants may escape previously induced cellular immunity and could be of concern.
Modelos híbridos de enseñanza y aprendizaje
Authors: Skelton-Macedo Mary Caroline , Gregori Fabio
Published: July 2022

La pandemia de la COVID-19 ha tenido un profundo impacto sobre la educación superior. El paso hacia la formación virtual obligó al rediseño del proceso educativo en todos los países, pero sin tiempo para preparar a las instituciones educativas y al estudiantado. Uno de los aspectos más afectados fue el relativo a la evaluación que, al igual que las clases, hubo de realizarse en remoto. Asimismo, los efectos de la pandemia se vieron agravados en áreas de conocimiento que demandan actividades prácticas. Otras preocupaciones han concernido al impacto sobre la salud mental y a la vulnerabilidad financiera de muchas familias. Todo lo anterior ha influido en la reflexión sobre la calidad educativa, y ha generado debates sobre los indicadores para medir las prácticas adoptadas. Por otro lado, en términos de internacionalización, la movilidad académica virtual no ofrece la misma riqueza que la movilidad presencial. A raíz de estas experiencias, los países de América Latina pueden extraer lecciones compartidas ante la educación superior en pospandemia. Los relatos de las experiencias en el contexto brasileño se presentan como una contribución ilustrativa al objeto de estudio de este documento.
The Road to Resiliency for South Carolina Water Utilities Paved by Planning, Persistence, and Careful Navigation of Realities and Hypotheticals
Authors: Sims Kaleigh , Copsey Megan , Ericksen Chris
Published: July 2022

Planning for a resilient future from known and emerging threats is a topic of interest among many organizations, especially in the utility sector. South Carolina communities depend on reliable and safe sources of drinking water and generally do not anticipate interruptions or issues with their water providers. With the rate at which the state is growing, the dependency will only increase. SynTerra worked with five utilities in South Carolina to assess their risk and resilience and develop or update emergency response plans. This paper reports on key takeaways from this experience in an effort to provide guidance on lessons learned to work toward a resilient future. The overall purpose of this paper is an effort to provide a firsthand account of how assessments and plans can be used as a guide for continuous improvement toward resiliency, with an ultimate goal of protecting human health.
South Carolina Sampling, Analysis, and Governance of Per- and Polyfluoroalkyl Substances
Authors: Kidd Justin , Fabricatore Emily , Jackson Dennis
Published: July 2022

The extent of sampling, analytical, and governance guidelines for per- and polyfluoroalkyl substances (PFAS) in individual states is currently inconsistent. There are no federally mandated regulations on PFAS, and the geochemical variations within different states can lead to regionally specific PFAS contamination, resulting in state-specific guidelines for PFAS contamination in different environmental matrices. There are no facilities in South Carolina known to currently or previously produce PFAS; however, they may be used in the production of other goods at industries throughout South Carolina, including Class B firefighting foams, consumer items, packaging, and stain- and weather-resistant fabrics. We assessed the sampling, analytical, and governance strategies of the South Carolina Department of Health and Environmental Control (SCDHEC) to understand current state-specific guidelines for PFAS contamination in South Carolina. This assessment indicates that SCDHEC has conducted sampling and analysis of community drinking water systems supplied by surface water for PFAS contamination. Additionally, risk indicators have been made for highly susceptible areas for likely PFAS contamination, including Department of Defense (DOD) and Department of Energy (DOE) sites, airports, and landfills in South Carolina. Recently, bills have been introduced into the South Carolina legislature to address PFAS. These proactive approaches in South Carolina aid in the assessment of the risks of PFAS contamination and are important steps for SCDHEC and South Carolina legislative stakeholders as they continue to develop and enforce state-specific standards for PFAS chemicals and await more information and official regulatory drivers from the US Environmental Protection Agency (US EPA).
Health Communication Blindspot: A Case Study of Harmful Algal Blooms in the South Atlantic States
Authors: King Jaron
Published: July 2022

A Harmful Algal Bloom (HAB) is a complex natural event that occurs when algae reach a critical biomass and create one or more toxins harmful to biological life or the environment. By definition, HABs create both ecological and public health challenges. Because governments are the entities most often tasked with the responsibility for shared resources, this case study represents a snapshot of current governmental messaging about HABs in the South Atlantic states. The objective of this online content analysis is to determine the readability of both state and federal government online communications regarding HABs using the Simple Measures of Gobbledygook (SMOG) test. Sources for this study were obtained using a targeted search of both South Atlantic state websites and federal agencies concerned with HABs and their effects on human health. In total, 90 webpages were identified from state (n=38) and federal agencies (n=42), as well as nongovernmental organizations (n=10). The average SMOG score of all 90 sources is an 11th grade reading level (10.7). This content analysis reflects the complexity of scientific communication. However, as evaluation and improvement are the final steps in any public health programming, evaluation needs to be undertaken in all environmental health communications in order to properly inform the public about known toxicological and environmental health risks.
Stakeholder Voice in Water Resource Planning
Authors: Isiguzo Chikezie , Washington Stone , Dickes Lori , Walker Thomas , Rouhi Rad Mani , Sahoo Debabrata , Allen Jeffrey
Published: July 2022

Stakeholder engagement for natural resource management at the state and local levels has become an important governance practice. This study examines the association of individual traits (aggressive communication, comfort with technology, and argumentativeness) with stakeholder participant voice in a water basin planning virtual meeting setting. Individual participants of the Edisto River Basin Council (RBC) meetings are the subject of the study. South Carolina decentralized water planning to the river basin level, creating RBCs and appointing interested and relevant stakeholders as members. While the river basin planning process did not envisage virtual (Zoom) meetings for the regular meetings of the RBC, the COVID pandemic required this to begin the planning process. Moreover, meeting participants possess diverse interests, powers, and individual traits that may affect the use of voice and engagement. There is well-established literature on stakeholder participation in resource planning. However, there are gaps in the literature regarding use of voice in virtual meeting settings in water resources planning, especially in settings like water-abundant areas in the Southeastern United States. Using the Edisto RBC as a pilot basin and quantitative surveys, preliminary results found that while RBC participants were on average comfortable with technology, they generally avoided conflict, they exhibited average communication apprehension in a meeting environment, and virtual meetings appear to limit participant’s use of voice. Consequently, meeting planners must recognize that not all participants express themselves optimally in virtual meeting settings. In this vein, planners must work to develop opportunities for as much active engagement and sharing as possible.
EFECTO DEL 1-METILCICLOPROPENO (1-MCP) SOBRE EL COMPORTAMIENTO POSTCOSECHA DEL AGUACATE ‘HASS’
Authors: Osuna-García Jorge Alberto , Beltrán J. A. , Vázquez-Valdivia Víctor
Published: July 2022

En este trabajo se evaluó el efecto del 1-MCP sobre el comportamiento postcosecha del fruto de aguacate ‘Hass’ cultivado en Nayarit y almacenado en condiciones de ambiente o refrigeración. Se encontró que el 1-MCP en dosis de 200 nL L-1 retrasó en 5 d el proceso de maduración de frutos, indicado por el cambio natural del color de cáscara de verde a negro en ambas condiciones de almacenamiento. También redujo la pérdida de peso en frutos sin refrigeración, pero no en frutos refrigerados. En ambas condiciones de almacenamiento el 1-MCP hizo más lento el ablandamiento de la pulpa, sin afectar la apariencia externa; además, disminuyó la incidencia de enfermedades fungosas y alargó la vida de anaquel por 6 d. El efecto del 1-MCP fue más marcado en frutos sin refrigeración, especialmente para el cambio de color de cáscara y las pérdida de peso y firmeza.
SISTEMA TRADICIONAL DE ALMACENAMIENTO DE SEMILLA DE FRIJOL Y CALABAZA EN YAXCABÁ, YUCATÁN
Authors: Latournerie-Moreno Luis , Yupit-Moo Elaine de la Cruz , Tuxill John , Mendoza-Elos Mariano , Arias-Reyes Luis Manuel , Castañón-Nájera Guillermo , Chávez-Servia José Luis
Published: July 2022

Este trabajo se desarrolló en la comunidad de Yaxcabá, Yucatán, México, de agosto 2001 a junio 2002, con el objetivo de entender los sistemas de almacenamiento de semillas de frijol (Phaseolus spp.) y calabaza (Cucurbita spp.), los métodos de control de plagas que utilizan los agricultores y sus estrategias de selección de semilla. Se aplicaron entrevistas directas a 61 productores tradicionales de la comunidad, en el lugar donde tenían almacenadas sus semillas. Primeramente se recorrieron las milpas de los productores, posteriormente el solar (alrededor de las casas) y, cuando fue necesario, sus casas. Las entrevistas se hicieron en español o en maya yucateco. Los agricultores de Yaxcabá utilizan diversas estrategias de almacenamiento. El frijol puede almacenarse sin trillar (46.8 %) o trillado (53.2 %), mientras que la calabaza siempre se conserva en semilla (100 %). Éstas se depositan en diferentes contenedores, como sacos o costales, bolsas de nilón o recipientes de plástico. Los contenedores con semillas de frijol y calabaza pueden ser almacenados en la cocina (63.9 % y 40 %, respectivamente), o en otra parte de la casa (27.9 % y 54.5 % , respectivamente), y ocasionalmente en las casas construidas en la milpa (8.2 % para frijol y 5.5 % para calabaza). Durante el almacenamiento los agricultores utilizan distintas medidas de control de los insectos plagas en el almacén, como humo del fuego (al colocarlo cerca de éste), insecticidas, recipientes de plástico bien cerrados, o cal. Pero algunosagricultores (32 % en frijol y 71 % en calabaza) no usan método alguno de control. La mayoría de los productores seleccionan sus semillas cada ciclo agrícola (86 % para frijol y 76 % para calabaza), proceso que puede realizarse a la cosecha (45.6 % y 62 % para calabaza y frijol, respectivamente) o antes de la siembra (54.4 % para frijol y38 % para calabaza) del próximo ciclo agrícola.
CAMBIOS ESTACIONALES DE NUTRIMENTOS EN HOJAS Y CAÍDA DE FRUTA EN DURAZNO ‘CRIOLLO’ DE ZACATECAS, MÉXICO
Authors: Zegbe-Domínguez Jorge A.
Published: July 2022

La caída de fruto es una constante preocupación entre los productores de durazno criollo (Prunus persica L. Batsch), y no ha sido evaluada en las distintas regiones productoras en Zacatecas, México. Se estudió la caída de fruto y su relación con el estado nutrimental de árboles de durazno criollo en huertos con diferente programa de riego, tipo de suelo, densidad de plantación y poda. El experimento se condujo en dos ciclos consecutivos 1997-1998 y 1998-1999, en tres huertos comerciales, en el Campo Experimental de Zacatecas, Mesa de Fuentes y en San José de Félix. Diez árboles de 8 a 10 años de edad fueron elegidos al azar y en cada uno se marcaron cuatro ramas mixtas con longitud y número de frutos similar. El porcentaje de fruto caídos se evaluó a los 65, 113, 147, 166 y 181 d después de floración completa. Al mismo tiempo se midió la concentración foliar estacional de los macro y micronutrimentos, así como el crecimiento vegetativo y reproductivo de los árboles. En 1998 la caída y cuajado de frutos fue estadísticamente igual entre los huertos. No se encontró relación significativa entre la caída de fruto y las concentraciones foliares de nitrógeno, boro y calcio. La temperatura del aire postletargo, en términos de unidades calor, explicó 56 % de la caída del fruto. En promedio se registró un cuajado de fruto de 36 %, el cual se considera suficiente para un rendimiento comercial.
RESPUESTA A LA SELECCIÓN DE LA POBLACIÓN DE SORGO TP-17 PARA RESISTENCIA A Exserohilum turcicum (Leo y Sug.) Y PARA PORTE BAJO DE PLANTA
Authors: Soltero-Díaz Leonardo , Ron-Parra José , Ramírez-Díaz José Luis , González-Eguiarte Diego Raymundo
Published: July 2022

En México y Jalisco las pérdidas en rendimiento de grano por plagas y enfermedades son considerables, especialmente las causadas por los tizones foliares y la pudrición del tallo. El objetivo del presente trabajo fue evaluar cuatro ciclos de selección individual (C0, C1, C2 y C3) de la población de sorgo (Sorghum bicolor L. Moench) TP-17, para tizón foliar Exserohilum turcicum (Leo y Sug.) y altura de planta. La selección se hizo en plantas androestériles en condiciones de campo en Ocotlán, Jal., México, en el periodo de 1989 a 1991. En 1992 cada uno de los ciclos se cruzó con cinco líneas A “probadoras” (E13A, B140A, ATX623, R5A y ATX627), y en 1993 y 1994 se evaluaron los ciclos y sus cruzas (en 1994 también se incluyeron las líneas probadoras), bajo el diseño experimental bloques completos al azar con cuatro repeticiones. La selección individual fue efectiva para mejorar la resistencia a tizón foliar y reducir la altura de planta en la población TP17 per se en -0.223 unidades de calificación (escala de 1 a 5) y -10.4 cm por ciclo de selección, respectivamente. La mejor respuesta indirecta a la selección para tizón foliar se logró con la línea probadora susceptible ATX627 y para altura de planta con la línea probadora de mayor porte ATx623. La mejor aptitud combinatoria específica, tanto para tizón foliar como para altura de planta, se dio en la combinación del último ciclo de selección (C3) con la línea probadora ATX627.
ENDOGAMIA Y PREDICCIÓN DE SINTÉTICOS DE MAÍZ DE CRUZAS DOBLES
Authors: Márquez-Sánchez Fidel
Published: July 2022

En la literatura se reporta la endogamia en sintéticos de maíz (Zea mays L.) hechos con cruzas simples. Además, se ha calculado la endogamia y hecho la predicción del rendimiento en los sintéticos con cruzas dobles. En los países subdesarrollados, sin embargo, son más frecuentes las cruzas dobles que las cruzas simples. Se espera además que la endogamia en aquéllos sea menor que en la de éstos. Aquí se muestra el cálculo de la endogamia de los sintéticos de cruzas dobles y la predicción de su rendimiento, con otro método.
CALIDAD NIXTAMALERA Y TORTILLERA EN MAÍCES CRIOLLOS DE MÉXICO
Authors: Antuna-Grijalva Oralia , Rodríguez-Herrera Sergio A. , Arámbula-Villa Gerónimo , Palomo-Gil Arturo , Gutiérrez-Arías Edmundo , Espinoza-Banda Armando , Navarro-Orona Edson F. , Andrio-Enríquez Enrique
Published: July 2022

En México, como en gran parte de Centro y Sudamérica, el maíz (Zea mayz L.) es utilizado principalmente para consumo humano, pues con él se elaboran diferentes alimentos, como las tortillas. El grano que va ser nixtamalizados para la elaboración de tortillas debe producir masa con alta humedad, buena extensibilidad y resistencia al corte de las tortillas. En esta investigación se evaluaron cinco tipos raciales de maíces criollos para elaborar tortillas, excepto la raza Dulce. De cada raza de maíz se determinaron las propiedades físicas del grano, masa y tortillas; en grano se determinó: dureza, tamaño, humedad, peso hectólitrico, perfil amilográfico y color; en la masa: adhesividad, cohesión y humedad; en las tortillas: tensión, corte, color y humedad. Se encontró que el largo del grano osciló de 11.97 a 18.57 mm, valores que corresponden al maíz Dulce y Pepitilla, respectivamente. La dureza del grano fluctuó entre 11.46 (Tuxpeño) y 4.71 kg (Pátzcuaro 2). La viscosidad máxima de la harina del grano de los maíces evaluados osciló entre 357 y 1813 cp. En el peso por hectolitro, Jala y Tuxpeño cumplen con los requerimientos mínimos establecidos en la norma de calidad (74 kg hL-1) para maíces destinados al proceso de nixtamalización. La humedad del grano, masa y tortilla fluctuaron entre 10.0-11.6 %, 54.2-58.0 % y 42.30-44.28 %, respectivamente. En textura de tortilla, el maíz Tuxpeño fue el que presentó la menor resistencia a la tensión y al corte, y el que produjo la mejor tortilla elaborada.
RENDIMIENTO Y TOLERANCIA A SEQUÍA DE GENOTIPOS DE FRIJOL NEGRO EN EL ESTADO DE VERACRUZ
Authors: López-Salinas Ernesto , Tosquy-Valle Óscar H. , Ugalde-Acosta Francisco J. , Acosta-Gallegos Jorge A.
Published: July 2022

En invierno-primavera 2007 se evaluó un grupo de genotipos de frijol de la raza Mesoamericana en riego y sequía, con la finalidad de clasificarlos por su tolerancia a sequía, así como identificar los de alta eficiencia en rendimiento en ambas condiciones de humedad. Se establecieron dos experimentos en Medellín de Bravo, Ver., México, uno con riego durante todo el ciclo y el otro con suspensión de riego a partir del inicio de floración. Se evaluaron 13 líneas y tres variedades ‘Negro Tacaná’, ‘Negro INIFAP’ y ‘Negro Jamapa’, en un diseño de bloques al azar con tres repeticiones. Se cuantificó días a madurez, número de semillas por vaina, peso de 100 semillas y rendimiento de grano. Como estimadores de eficiencia se utilizó el índice de susceptibilidad a sequía (ISS), la media geométrica (MG) y el índice de eficiencia relativa (IER). El decremento del rendimiento por efecto de sequía fue de 68.8 %. Con valores de ISS < 0.86, los genotipos ELS-15-55, NGO 17-99 y ‘Negro INIFAP’ fueron los más tolerantes a sequía, mientras que NGO 99038, NGO 99054 y NGO 99176 fueron los más susceptibles. NGO 17-99 y ‘Negro INIFAP’ obtuvieron las mayores MG con 1.70 y 1.63, mientras que DOR-667 obtuvo el mayor IER con 1.56. Con estos dos índices se seleccionaron genotipos con alto rendimiento en las dos condiciones de humedad, mientras que con el ISS se seleccionaron los de menor reducción del rendimiento por sequía. Tanto en riego (r = 0.83**) como en sequía (r = 0.88**) el rendimiento se incrementó por mayor peso de semilla, mientras que en sequía el número de semillas por vaina también correlacionó con el rendimiento (r = 0.78**).
¿REMOVER LAS YEMAS REPRODUCTIVAS AFECTA LA ÉPOCA DE COSECHA DEL NOPAL TUNERO?
Authors: Zegbe Jorge A. , Mena-Covarrubias Jaime
Published: July 2022

Producir fruta de nopal tunero (Opuntia spp) fuera de temporada es importante para alcanzar precios más altos. Este trabajo probó la hipótesis de que eliminar las yemas reproductivas podría retrasar o adelantar la maduración de la fruta de los cultivares ‘Cristalina’ y ‘Rojo Liso’. Los tratamientos consistieron en eliminar las yemas reproductivas más desarrolladas, o bien las más jóvenes, más un testigo que consistió en permitir el desarrollo normal de las yemas reproductivas, excepto las yemas dobles que fueron eliminadas. La eliminación de las yemas reproductivas más desarrolladas o las más jóvenes ni atrasó ni adelantó la cosecha en ambos cultivares, por lo que esta estrategia no es útil para modificar el tiempo de la cosecha; pero la aplicación de estos tratamientos aumentó el tamaño del fruto y redujo el rendimiento en ambos cultivares, aunque no significativamente en ‘Cristalina’. Así, con el raleo de yemas se logró producir fruto de mayor tamaño que en las plantas testigo, lo cual es importante para un mercado selecto nacional y de exportación.
A 3ª GERAÇÃO DE COLETORES SOLARES COMO CANDIDATA A UMA ENERGIA EFETIVAMENTE SUSTENTÁVEL
Authors: Rangel Coelho da Rocha Isabella
Published: July 2022

This article presents about clean energy, more specifically it deals with solar energy. Aspects of the context are brought up, such as the innovation of this energy matrix, the development of the years of solar preservation in its generations until reaching the technology that is approaching today, its relationship with technology. The 3rd generation, which mainly includes organic photovoltaic cells, or OPV, is the material of study of this article, due to its characteristics such as semi-transparency, flexibility, adaptability and recyclability. Although the 1st and 2nd generation modules are considered clean, as important milestones, they cannot be considered, in their entirety, as, since at the end of their useful life, a generation of waste that contributes to the energy of environmental problems dumping of waste. Therefore, it was evaluated, through a qualitative analysis, that the OPV is capable of solving this problem and that it is a unique and robust solar array, even if it is still accurate, even if it does not have requirements for energy and economic use.
Intervenções poéticas de uma docência
Authors: Deorristt Aline da Rosa , Adó Máximo Daniel Lamela
Published: July 2022

Este artigo apresenta uma intervenção poética experimental como parte de uma pesquisa de doutorado em Educação, somando duas peças instaladas temporariamente num espaço cultural de uma universidade pública e inauguradas no dia 8 de março de 2020. O trabalho foi feito a partir de um convite para ressignificar o Dia Internacional da Mulher, e se desvia ampliando-se numa proposta de disseminação poética que permite mutações afectivas quanto ao tema. As peças atuam como produções desejantes de um potencial docente sensorial e literário, que desenha uma proposta de interação com o público. Intervir, transcriar, deslocar e disseminar são estratégias conceituais para se pensar uma docência potencial, com perspectivas que contemplam as filosofias da diferença e uma especulação crítica nas artes.
Grupo Miguilim e a narração oral de literatura
Authors: Almeida Maria Elisa Pereira de
Published: July 2022

Para Jorge Dubatti (2007), paralelamente ao teatro, a narração oral é uma arte convivial, que prima pelo convívio poético presencial estabelecido entre narrador oral e espectador. Por outro lado, a literatura oral in vivo admite a intermediação tecnológica (tecnovívio). O Museu Casa Guimarães Rosa em Cordisburgo, MG, abriga há 24 anos o Grupo Miguilim, jovens narradores que narram trechos de Guimarães Rosa compartilhando poíesis em convívio presencial. A partir dos filmes de Anita Leandro das narrações dos “miguilins”, desde 2006, o artigo reflete sobre as fronteiras da narração oral de literatura como arte convivial que ao mesmo tempo pode se prestar para a gravação de áudio-livros e para um cinema documentário singular que preserva a narração em planos únicos.
Projeto Tempus
Authors: Mibielli Bruna Penna , Markava Inesa
Published: July 2022

O projeto Tempus é desenvolvido pelas artistas Bruna Mibielli e Inesa Markava, também em parceria com outros artistas desde 2017, e busca dialogar, por meio de instalações, performances e videoperformances, com o conceito filosófico do tempo, refletindo sobre a permanência, a mudança, a renovação e a multiplicidade do tempo. O projeto se desenvolve em campo teórico e prático, tendo realizado diversas ações e apresentações em eventos internacionais.
Fabulação na formação docente
Authors: Nunes Carolina Ramos , Schmidlin Elaine
Published: July 2022

Como Alice no País das Maravilhas (Lewis Carroll), a escrita deste texto convida a arriscar-se por [entre] figuras de linguagem e roteiros fabuladores. Em uma conversa infindável, o texto permeia a invenção para pensar a formação de professores em Artes Visuais, não como representação, mas como uma construção que, longe de um modelo, vislumbra arriscar-se. As histórias ficcionais, transitando entre arte e filosofia, com suas figuras e conceitos, arrastam intensivamente as identidades representacionais presentes na formação docente, aproximando ideias sobre o sentido ser e estar professor. Essa relação paradoxal apresenta-se como uma problemática para a pesquisa que, potencializada pela fabulação e o acontecimento, deseja romper com o primado da utopia representacional que está presente nas formações docentes.
espectro do som como ferramenta de análise fílmica
Authors: Carreiro Rodrigo , Opolski Débora
Published: July 2022

Esse artigo tem o objetivo de apresentar a análise espectral sonora como uma ferramenta visual consistente para a criação de novas abordagens metodológicas centradas na análise do som. Considerando a complexidade da trilha sonora, a transposição das informações sonoras para o meio visual torna possível o estudo minucioso do som, sem perder de perspectiva a totalidade da trilha sonora ou sua relação com a imagem. A precisão e o alto grau de detalhes parecem constituir vantagens para esse tipo de análise, realizadas com gráficos tridimensionais gerados por softwares como o iZotope RX, denominados espectrogramas. Explorando três estudos de casos, o texto busca explicar como as análises espectrais permitem que percepções subjetivas do analista sejam confirmadas de modo inequívoco.
O pessoal é político
Authors: Da Silva Carolinne Mendes , Carrijo Aline Fernandes
Published: July 2022

O presente artigo propõe uma análise do filme O Desafio (Paulo Cesar Saraceni, 1967) contextualizando-o no movimento do Cinema Novo brasileiro e no debate político e cultural das esquerdas na conjuntura estabelecida após o golpe civil-militar de 1964. A partir de uma perspectiva feminista, questiona-se como a narrativa caracteriza a personagem Ada (Isabella) e sua relação com o protagonista Marcelo (Oduvaldo Vianna Filho). Em uma década marcada pelas discussões de gênero, O Desafio incorporou as questões do âmbito privado entre homens e mulheres, relacionando-as a posições políticas e apresentando tensões entre o movimento pela libertação das mulheres e a tradicional luta de classes na concepção das esquerdas.
Segredo da Caverna
Authors: Capuzzo Heitor
Published: July 2022

Um dos efeitos colaterais do excessivo uso da fragmentação narrativa é diluir a capacidade humana em compreender o mundo e representá-lo numa visão de conjunto. O excesso de detalhes articulados potencializa uma visão de mundo cada vez mais atomizada. O investimento na construção coletiva de uma abrangente visão de mundo pode ser uma importante estratégia para que possamos reencontrar uma identidade de ser que, talvez, tenhamos perdido em todo esse processo que chamamos de civilização.
Development of a nail-deformation haptics device fabricated adopting ultra-thin PZT-MEMS technology
Authors: Takeshita T. , Zymelka D. , Takei Y. , Makimoto N. , Kobayashi T.
Published: July 2022

We describe the fabrication and evaluation of a nail-deformation haptics actuator having a flexible haptics film. The novelty of the developed actuator is the generation of a vibration that directly deforms the nail and finger pad. The flexible piezo-MEMS film is fabricated adopting ultra-thin lead-zirconate-titanate microelectromechanical system (MEMS) and lamination technology. The flexible piezo-MEMS film has flexibility (thickness: 65 μm) and low weight (mass: 55 mg). The device can thus be attached on a nail without discomfort. A nail-deformation haptics actuator was fabricated by attaching this flexible piezo-MEMS film on an artificial nail. When applying a DC voltage of 40 V to the film, there was a strain of −36.5 × 10−6 in the cylindrical direction of the nail and −12.1 × 10−6 in the circumferential direction. Furthermore, applying an AC voltage (40 V
pp, 20 V
offset) at a frequency of 200–300 Hz, the finger pad deformed sufficiently to perceive vibration.
ANALISIS HUBUNGAN POLA MAKAN DENGAN KEJADIAN HIPERTENSI PADA LANSIA
Authors: B Hamzah , Akbar Hairil , Langingi Ake Royke Calvin , Hamzah St. Rahmawati
Published: July 2022

Hipertensi masih menjadi masalah kesehatan masyarakat yang cukup besar. Prevelensi hipertensi pada kelompok umur lansia mengalami peningkatan kasus yang cukup tinggi sebesar 63,2% (65-74 tahun) dan 69,5% (lebih dari 75 tahun). Tujuan penelitian ini adalah menganalisis hubungan pola makan dengan tingkat hipertensi pada lansia di wilayah kerja Puskesmas Molibagu. Jenis penelitian yang digunakan observasional analitik dengan rancangan cross sectional dengan jumlah sampel sebanyak 31 responden. Teknik penarikan sampel yang digunakan adalah Total Sampling. Data dikumpulkan dengan wawancara langsung kepada responden dan dianalisis secara univariat dan bivariat dengan menggunakan uji chi square.  Hasil penelitian menunjukkan terdapat 61,3% responden yang menderita hipertensi, 67,7% responden yang memiliki pola makan kurang baik dan 32,3% yang memiliki pola makan yang baik. Hasil uji statistik diperoleh ada hubungan pola makan dengan kejadian hipertensi (p=0,014 lebih kecil 0,05). Maka dapat disimpulkan ada hubungan antara pola makan dengan kejadian hipertensi di wilayah kerja Puskesmas Molibagu Kabupaten Bolaang Mongondow Selatan. Saran kepada masyarakat khususnya pada lansia untuk selalu mengontrol tekanan darah dan menjaga pola makan yang sehat dengan menghindari makanan yang tinggi natrium dan berlemak.
HUBUNGAN MOTIVASI BELAJAR DENGAN PRESTASI AKADEMIK
Authors: Astuti Eka Rati , Zakaria Rabia
Published: July 2022

Kemampuan akademik yang dimiliki seorang mahasiswa berbanding lurus dengan prestasi akademik. Motivasi belajar sangat penting dalam meraih prestasi belajar yang baik karena motivasi dalam belajar adalah faktor yang penting dimana hal tersebut merupakan keadaan yang mendorong mahasiswa untuk belajar. Rumusan masalah: apakah ada hubungan motivasi belajar dengan prestasi akademik pada mahasiswa Program Studi D3 (Tiga) Kebidanan Jurusan Kebidanan Poltekkes Kemenkes Gorontalo? Tujuan penelitian: untuk mengetahui gambaran motivasi mahasiswa serta mengetahui hubungan motivasi belajar dengan prestasi akademik pada mahasiswa program studi D3 (Tiga) Kebidanan jurusan Kebidanan Poltekkes Kemenkes Gorontalo.Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian analitik dengan desain penelitian cross sectional. Populasi dalam penelitian ini yakni seluruh mahasiswa Program Studi D3 (Tiga) Kebidanan Jurusan Kebidanan Poltekkes Kemenkes Gorontalo yang berjumlah 194 orang. Teknik sampling yang digunakan dalam penelitian ini adalah Total Sampling. Uji statitsitik yang digunakan untuk menganalisis hubungan motivasi belajar dengan prestasi akademik adalah chi square (x2).Hasil penelitian: dari 146 mahasiswa yang mempunyai motivasi belajar yang tinggi, sebagian besar mempunyai prestasi akademik yang sangat memuaskan yaitu 84 mahasiswa (57,53%). Hasil uji statistik dengan menggunakan uji chi-square menunjukkan nilai ρ (0,62) lebih besar dari ρ (0,05).Kesimpulan: Tidak ada hubungan antara motivasi belajar dengan prestasi akademik mahasiswa program studi d3 (tiga) kebidanan jurusan kebidanan poltekkes kemenkes gorontalo yang ditunjukkan dengan nilai ρ (0,62). Mahasiswa diharapkan agar memperhatikan faktor lain untuk meningkatkan prestasi akademik selain motivasi belajar, meliputi: kecerdasan/ IQ, instrumental (kurikulum, sarana/ fasilitas), minat, bakat, dan cara belajar.
PELUANG PEMANFAATAN TUMBUHAN PEPEROMIA PELLUCIDA (L.) KUNTH SEBAGAI TEH HERBAL ANTIDIABETES
Authors: Pratiwi Andi , Datau Wilinda A. , Alamri Yumna Binti Abud , Kandowangko Novri Youla
Published: July 2022

Salah satu sindrom kelainan metabolik pada manusia adalah Diabetes militus. Penyakit ini bisa diatasi dengan pengobatan alami dengan memanfaatkan tumbuhan. Salah satunya adalah tumbuhan suruhan (Peperomia pellucida (L.) Kunth, yang dapat diolah menjadi Teh herbal. Tujuan dari review ini adalah untuk menelusuri produk alami berupa senyawa bioaktif, proksimat dan potensi tumbuhan suruhan sebagai antidiabetes. Metode yang digunakan yaitu studi pustaka dengan mengumpulkan artikel dalam bentuk data primer berupa artikel jurnal nasional maupun jurnal internasional 10 tahun terakhir (2010-2020) dari database elektronik. Berdasarkan hasil review diperoleh bahwa tumbuhan Suruhan mengandung senyawa bioaktif seperti alkaloid, flavonoid, tanin yang dapat menghambat kerja enzim α-glukosidase melalui subtitusi pada cincin β dan melalui ikatan hidroksilasi. Tanin juga dapat menurunkan glukosa darah melalui penghambatan kerja enzim α-glukosidase yang dapat menunda penyerapan glukosa setelah makan, dengan cara memperpanjang waktu cerna karbohidrat, sehingga laju absorbsi glukosa menurun.
Prospects and Challenges of Entrepreneurial Woman in Nigeria’s Informal Sector
Authors: Ebisi Njideka
Published: July 2022

Women are active participants in the informal sector with many achieving successes in different areas of the sector. Many notable women entrepreneurs are increasingly contributing to the global economy through the informal sector but despite their role as business owners and entrepreneurs, they are more likely to be the primary parent, housekeeper and even emotional nurturer. This paper is anchored on structuralist theorization which views informal entrepreneurship as a form of low-quality work, carried out under poor conditions for low wages by population often marginalized from the formal economy and who conduct such activities out of necessity in the absence of alternative means of survival. Women are involved in the informal sectors in many ways such as forestry, fishing, crop productions, plantations and other agricultural activities. Women entrepreneurs are also involved in non-farming business activities as manufacturing, sales, food delivery services, and other sundry supplies. As a result, women entrepreneurs dominate and contribute significantly to the growth in Gross Domestic Product (GDP) in both developed and developing countries. Notwithstanding the important roles women entrepreneurs play in the informal sector, they are faced with several obstacles to growth; lack of interaction with successful entrepreneurs, social rejection as women entrepreneurs, family responsibilities, gender discrimination, social exclusion, and bankers’ low priority in provision of loans. It is recommended that governments, NGOs, and private institutions should assist in breaking these hurdles by providing suitable support services, creating equal opportunities for growth., and expanding the market for women entrepreneurs both locally and worldwide
Socio-Cultural Correlates of Maternal Morbidity in Lagos State, Nigeria
Authors: Ajoseh S. M. , Raji S. O.
Published: July 2022

Adverse maternal health is a public health challenge in Less developed countries particularly Nigeria. Despite different interventions, Nigerian women are 500 times more likely to die during pregnancy than their counterparts in more developed countries. Although, some women survive the phase of pregnancy and delivery, they do so with disabling long-term complications. Clinical factors have been identified as possible causes of these adverse maternal issues with no recourse to cultural and behavioural factors. This study focuses on the influence of socio-cultural factors on maternal morbidity among women of reproductive age. Health Belief Model and Religious Functionalism of Emile Durkheim were adopted as the theoretical orientation. The Cross-sectional survey design was utilized with 400 questionnaires administered among pregnant women through the multi-stage sampling technique. Cultural beliefs on pregnancy and child delivery include sharing of gifts to children in the neigbourhood, killing of rams, naming first born at their paternal grandfather, circumcision, not walking in the hot sun, and the necessity of children as a sign of fruitfulness among others. The Bivariate analysis showed that cultural beliefs predict high blood pressure, diabetes and complicated Malaria (p<0.001). Taboos about pregnancy significantly influence stillbirth and diabetes (p<0.05), high blood pressure (p<0.01), and complicated malaria (p<0.001). The Logistic Model indicated that women who take vegetables than other foods are more likely not to experience high blood pressure during pregnancy (p<0.05), while taking herbs more than other rituals make women more likely to experience diabetes during pregnancy (p<0.01). The study recommends among others dieting, exercise, rest, intake of fruits and vegetables, taking prescribed drugs and prayers should be encouraged by formal medical and trado-medical practitioners, friends and family members.