bluuebunny/crossref_metadata_2025 huggingface dataset:
The Optimization of Metal Nitride Coupled Plasmon Waveguide Resonance Sensors Using a Genetic Algorithm for Sensing the Thickness and Refractive Index of Diamond-like Carbon Thin Films
Authors: Junrear Jaturong , Sakunasinha Panarit , Chiangga Surasak
Published: May 2022

We theoretically designed the Kretschmann configuration coupled plasmon-waveguide resonance (CPWR) sensors, composed of thin films of metal nitrides. The thicknesses of the layers of the CPWR sensors were optimized using a genetic algorithm. The optimized CPWR sensors were applied to simultaneously measure the thickness and refractive index (RI) of diamond-like carbon (DLC) films. The field profiles and the sensitivity of the CPWR sensors in response to thin DLC films were studied using the finite-different time-domain technique and the transfer matrix method. The genetic algorithm method predicted that the two-mode CPWR sensors could simultaneously analyze the thickness and RI of the DLC films as thin as 1.0 nm at a wavelength of 1550 nm. The simulations showed that the angular sensitivity toward the refractive index changes of the DLC films of the optimized CPWR sensors was comparable to that of traditional CPWR sensors.
A Review: The Functional Materials-Assisted Terahertz Metamaterial Absorbers and Polarization Converters
Authors: Yan Dexian , Wang Yi , Qiu Yu , Feng Qinyin , Li Xiangjun , Li Jining , Qiu Guohua , Li Jiusheng
Published: May 2022

When metamaterial structures meet functional materials, what will happen? The recent rise of the combination of metamaterial structures and functional materials opens new opportunities for dynamic manipulation of terahertz wave. The optical responses of functional materials are greatly improved based on the highly-localized structures in metamaterials, and the properties of metamaterials can in turn be manipulated in a wide dynamic range based on the external stimulation. In the topical review, we summarize the recent progress of the functional materials-based metamaterial structures for flexible control of the terahertz absorption and polarization conversion. The reviewed devices include but are not limited to terahertz metamaterial absorbers with different characteristics, polarization converters, wave plates, and so on. We review the dynamical tunable metamaterial structures based on the combination with functional materials such as graphene, vanadium dioxide (VO2) and Dirac semimetal (DSM) under various external stimulation. The faced challenges and future prospects of the related researches will also be discussed in the end.
A Stabilized Single-Longitudinal-Mode and Wide Wavelength Tunability Erbium Laser
Authors: Chen Li-Ci , Lai Yi-Ting , Yeh Chien-Hung , Lin Wen-Piao , Chow Chi-Wai , Chen Jing-Heng
Published: May 2022

An erbium-doped fiber (EDF) laser with quad-ring is designed to reach the broad continuous-wave (CW) tunability and single-longitudinal-mode (SLM) behavior. Here, while a C-band erbium-based gain medium is exploited, the tunable scope can be extended from C- to part of L-bands and narrow the linewidth to several kHz by the presented compound-ring configuration. Additionally, the optical signal to noise ratio (OSNR), output power, and stability behavior of every lasing wavelength are also demonstrated.
Floral Quality Characterization in Olive Progenies from Reciprocal Crosses
Authors: Rapoport Hava F. , Moreno-Alías Inmaculada , de la Rosa-Peinazo Miguel Ángel , Frija Amina , de la Rosa Raúl , León Lorenzo
Published: May 2022

Despite the importance of flowering for fruit formation, it has been considered very little in breeding programs involving fruit species, including olives. We evaluated the principal morphological flower-quality components in the olive cultivars, ‘Arbequina’ and ‘Picual’, and in the progenies of their crosses. Wide ranges of variation were obtained for all the inflorescence traits and ovary tissue sizes. An analysis of variance indicated that the residual error was the main contributor to the inflorescence traits, except for the number of perfect flowers, underlining the need to evaluate adequate numbers of inflorescences for accurate measurements of these traits. However, the high repeatability obtained for the inflorescence traits suggests that simple evaluation procedures could be accurate enough for genotype characterization. The average values for ‘Arbequina’ were in the upper range for all the traits; the opposite occurred for ‘Picual’, and the values for most of the progenies were intermediate. No significant differences between the maternal and paternal effect on inheritance were found. Some interesting transgressive segregants showed a higher flower number, greater ovary and mesocarp size, or percentage of ovaries with all four fully developed ovules. The correlations among the parameters may have reflected a relatively consistent distribution of the ovaries’ structural components and a close relationship between the ovaries and their mesocarp growth.
Study on the Effects of Salt Tolerance Type, Soil Salinity and Soil Characteristics on the Element Composition of Chenopodiaceae Halophytes
Authors: Song Xiaoqian , Su Yuhang , Zheng Jingwen , Zhang Zhonghua , Liang Zhengwei , Tang Zhonghua
Published: May 2022

With the continuous increase in saline–alkali land, sustainable development of the global environment and ecology have been seriously affected. This study compared the absorption and accumulation patterns of 11 elements in different parts (roots, stems and leaves) of different leaf Na regulation strategies of the pioneer plant Chenopodiaceae in saline–alkali land and evaluated the effects of soil nutrient status and soil salinity on the distribution of plant elements. The results showed that the changes in the content of Ca, Mg and Na in plants are affected by the salt-tolerant type and on different parts. Soil salinity had no significant effect on element concentrations in different parts of plants. The Pearson correlation coefficient showed that the correlation between plants and soil elements was different, and different parts of plants had the characteristics of selective absorption of soil elements. The salt tolerance type and soil mineral element concentrations explained most of the variation observed in element concentrations in Chenopodiaceae plants; the soil salinity property played only a minor role. It was concluded that the genetic factors are the prerequisite in the composition pattern of leaf elements in Chenopodiaceae, and soil factors are the key to determining element accumulation. These conclusions provide an effective reference for evaluating plant breeding and its response to environmental change in saline–alkali arid areas in Hulunbuir grassland and other parts of the world.
Research Advancement in Grassland Ecosystem Vulnerability and Ecological Resilience and Its Inspiration for Improving Grassland Ecosystem Services in the Karst Desertification Control
Authors: Fang Jinzhong , Xiong Kangning , Chi Yongkuan , Song Shuzhen , He Cheng , He Shuyu
Published: May 2022

Karst desertification control of grasslands balances the ecological and economic benefits of ecological restoration and rural ecological animal husbandry development. In the context of global changes and intensified human activities, the fragility of grassland ecosystems under karst desertification control is becoming increasingly evident, and enhancing the ecological resilience and ecosystem services of grasslands is an issue that urgently needs to be addressed. In this paper, the CNKI literature, WOS core databases and Goolgle scholar were used as search sources, identifying 179 articles related to the study of grassland ecosystem vulnerability and ecological resilience. This research systematically reviewed the progress of grassland ecosystem vulnerability research and analyzed the relationship between grassland ecosystem services (GESs) and grassland ecosystem vulnerability and resilience. The direction of enhancing GESs in karst areas is indicated in terms of the reciprocal feedback, synergistic relationship, and mechanism of action of GESs, vulnerability, and resilience. It is also emphasized that the karst desertification area should provide an ecological foundation for the sustainable development of the regional environment around the supply-and-demand relationship of GESs, the trade-off synergy of service flow, and the enhancement of ecological resilience, thereby consolidating the effectiveness of karst desertification control, enhancing GESs, and helping rural revitalization.
Growth Regulators Improve Outcrossing Rate of Diverse Rice Cytoplasmic Male Sterile Lines through Affecting Floral Traits
Authors: ElShamey Essam A. Z. , Hamad Hassan Sh. , Alshallash Khalid S. , Alghuthaymi Mousa A. , Ghazy Mohamed I. , Sakran Raghda M. , Selim Mahmoud E. , ElSayed Mahmoud A. A. , Abdelmegeed Taher M. , Okasha Salah A. , Behiry Said I. , Boudiar Ridha , Mansour Elsayed
Published: May 2022

Cytoplasmic male sterility (CMS) provides an irreplaceable strategy for commercial exploitation of heterosis and producing high-yielding hybrid rice. The exogenous application of plant growth regulators could improve outcrossing rates of the CMS lines by affecting floral traits and accordingly increase hybrid rice seed production. The present study aimed at exploring the impact of growth regulators such as gibberellic acid (GA3), indole-3-acetic acid (IAA), and naphthalene acetic acid (NAA) on promoting floral traits and outcrossing rates in diverse rice CMS lines and improving hybrid rice seed production. The impact of foliar applications of growth regulators comprising GA3 at 300 g/ha or GA3 at 150 g/ha + IAA at 50 g/ha + NAA at 200 g/ha versus untreated control was investigated on floral, growth, and yield traits of five diverse CMS lines. The exogenously sprayed growth regulators, in particular, the combination of GA3, IAA, and NAA (T3) boosted all studied floral, growth, and yield traits in all tested CMS lines. Moreover, the evaluated CMS lines exhibited significant differences in all measured floral traits. L2, L3, and L1 displayed the uppermost spikelet opening angle, duration of spikelet opening, total stigma length, style length, stigma brush, and stigma width. In addition, these CMS lines exhibited the highest plant growth and yield traits, particularly under T3. Consequently, exogenous application of GA3, IAA, and NAA could be exploited to improve the floral, growth, and yield traits of promising CMS lines such as L2, L3, and L1, hence increasing outcrossing rates and hybrid rice seed production.
The effectiveness of evaluation of sires by indicators of milk productivity of daughters by the method of comparison of «daughters-dams»
Authors:   Federal State Budgetary Educational Institution of Higher Education “Kurgan State Agricultural Academy named after T. S. Maltsev”, Russia, Kurgan region, Lesnikovo, Nazarchenko O. V. , Kakhikalo V. G. ,   Federal State Budgetary Educational Institution of Higher Education “Kurgan State Agricultural Academy named after T. S. Maltsev”, Russia, Kurgan region, Lesnikovo, Evshikov S. S. ,   OOO “BMK”, Russia, Sverdlovsk region, Bogdanovichsky area
Published: May 2022

The purpose of the work was to evaluate the sires in terms of milk productivity of daughters by comparing the method “daughters-dams” in the herd of OOO “BMK” Bogdanovichsky area in Sverdlovsk region. It was found that the milk yield for 305 days of lactation in the daughters of the sire Fennek 4241542328 was 8815±323,2 kg with the difference between the milk yield of daughters and the milk yield of dams 705 kg and the coefficient of variability 17,9 %. Sire Altadublin 8820742 was evaluated as neutral in milk yield of daughters for 305 days of lactation, while his daughters showed milk yield less than dams by 34 kg. The mass fraction of fat in the milk in the daughters of the sire Altadublin 8820742 was lower than that in dams by 0,09 %. In the daughters of sires Bosch 2733, Fennek 4241542328 and Lan 666626709, it was higher than in dams by 0,12 abs.%, 0,02 and 0,11 abs.%, respectively. The sires Bosch 2733, Fennek 4241542328 and Lan 666626709 were evaluated as improvers by the mass fraction of protein in milk, the indicators of their daughters exceeded the indicator in dams by 0,42 abs.%, 0,40 and 0,41 abs.% (P < 0,01–0,001), respectively. The sire Altadublin 8820742 was evaluated as neutral, because in terms of the mass fraction of protein in milk, his daughters surpassed their dams by only 0,03 abs.%. Taking into account the genealogical structure of Black-and-White breed of the Urals, it is necessary to evenly use the gene pool of all promising lines of Holstein breed such as Wes Ideal 933122, Montwick Chieftain 95679, Reflection Sovereign 198998.
Low-expenditures diets in the feeding of poultry
Authors:   Federal State Budgetary Educational Institution of Higher Education “Volgograd State Agrarian University”, Russia, Volgograd, Nikolaev S. I. , Karapetyan A. K. ,   Federal State Budgetary Educational Institution of Higher Education “Volgograd State Agrarian University”, Russia, Volgograd, Samofalova O. V. ,   Federal State Budgetary Educational Institution of Higher Education “Volgograd State Agrarian University”, Russia, Volgograd, Gorin I. E. ,   Federal State Budgetary Educational Institution of Higher Education “Volgograd State Agrarian University”, Russia, Volgograd, Danilenko I. Yu. ,   Federal State Budgetary Educational Institution of Higher Education “Volgograd State Agrarian University”, Russia, Volgograd, Kolovorotnaya V. I. ,   Federal State Budgetary Educational Institution of Higher Education “Volgograd State Agrarian University”, Russia, Volgograd, Kolodyazhny A. V. ,   Federal State Budgetary Educational Institution of Higher Education “Volgograd State Agrarian University”, Russia, Volgograd
Published: May 2022

The purpose of the research was to increase the egg productivity of poultry using low-expenditures compound feed with lupin. In order to achieve this purpose two scientific and farm experiments were conducted on young poultry and laying hens of the cross Haisex Brown. The research was carried out under the conditions of the enterprise AO “Agrofirma “Vostok” in the Volgograd region. The replacing of 50, 75 and 100 % of full-fat soya bean with lupin as part of compound feed for poultry of the 1st, 2nd and 3rd experimental groups compared with the control group positively affected the live weight of young animals, which increased to 29,2 g, while the expenditures of compound feed per 1 kg of gain decreased to 0,1 kg. In laying hens during the experiment period the number of laid eggs increased to 3,1 %, the egg weight to 1,2 % and feed expenditures decreased by 10 pcs eggs up to 3,03 %. In young poultry and laying hens the digestibility of nutrients and the use of nitrogen, calcium and phosphorus were higher in the experimental groups compared to the control group, respectively: crude protein by 0,43–1,28 and 0,29–0,78 abs.%, crude fiber by 0,39–0,62 and 0,35–0,59 abs.%, crude fat by 0,22–0,69 and 0,41–0,68 abs.%. The use of nitrogen from the accepted was higher by 0,31–1,04 and 0,13–1,83 abs.%, calcium by 0,41–1,36 and 1,65–2,75 abs.%, phosphorus by 0,63–1,43 and 0,77–1,85 abs.%. It was revealed during the experiments on young poultry and laying hens that replacing of full-fat soy bean in the diet with lupin influence on the digestibility of nutrients, the use of nitrogen, calcium and phosphorus, and also has a positive effect on feed expenditures, live weight of young poultry and egg productivity of laying hens.
Experience and problems of implementation of digital solutions in animal husbandry of the Republic of Belarus (review)
Authors:   Institute of System Research in Agro-industrial Complex of the National Academy of Sciences of Belarus, Republic of Belarus, Minsk, Kovalyev I. L. , Takun A. P. ,   Institute of System Research in Agro-industrial Complex of the National Academy of Sciences of Belarus, Republic of Belarus, Minsk, Takun S. P. ,   Institute of System Research in Agro-industrial Complex of the National Academy of Sciences of Belarus, Republic of Belarus, Minsk, Kostomakhin M. N. ,   Federal Research Center Agro Engineering All-Russian Institute of Mechanization, Russia, Moscow
Published: May 2022

The presented review article describes a number of some important software products, information systems, and other digital solutions that are extremely necessary for the effective functioning of the agro-industrial complex of the Republic of Belarus in general and animal husbandry in particular. The important global trends in the development of modern agriculture are considered, the benefits received by farmers from the use of various digital technologies are discussed, and the need to accelerate the current pace of introduction of diffirent elements of precision farming and animal husbandry systems into Belarusian agriculture is noted. In the animal husbandry of the republic a number of farms using Smart Farm technology already use robotic milking modules with monitoring of milk quality and the physiological state of animals, which reduces the incidence of cows with mastitis by 25–30 %, increases the time of economic use of animals up to 4–5 lactations. The use of robotic tools for the preparation and distribution of feed mixtures allows us to increase the milk yield of cows by 30–40 %. At the same time, the profitability of products produced using this technology can exceed 40 %. Feed preparation and distribution systems have been developed. On farms with free-stall housing animal husbandry, concentrated feed is normalized by the automated cow feeding station SKA-25 developed by RUE “NPC of the National Academy of Sciences of Belarus for Agricultural Mechanization”. The use of a feeding station makes it possible to automate the process of issuing concentrated feed, as well as to monitor the use of high-energy feed through automated process control systems on cattle farms.
A new method for determining of the effectiveness of feed enzymes
Authors:   OOO “Biohem Rus”, Russia, Moscow, Moscowsky, Sonichev B. E. , Shapovalov S. O. ,   Scientific and Research Center “Cherkizovo”, Russia, Moscow region, Yakovlevskoe
Published: May 2022

Recently, there is no single universally recognized and standard method for determining the activity of enzymes that destroy non-starchy polysaccharides (NPS). Each manufacturer of NPS enzymes uses its own approach, as well as its own analytical conditions (pH, temperature, substrate, etc.). In practice, the determination of enzyme activity shows the activity of a specific enzyme that is part of a commercial product. This creates difficulties for consumers in orienting and comparing this variety of available products on the market. In this paper Scientific and Research Center “Cherkizovo” proposed to use the concept of “enzyme efficiency” and developed a new method for its analysis. It has been demonstrated that the final product of the enzymatic reaction can act as a working indicator of the efficiency of the enzyme. As a result, it has been shown that different enzyme complexes contribute to the different release of free simple sugars in an aqueous colloidal solution of crushed grain incubated at a temperature of 39 °C with the efficiency of 6 to 160 % compare with control. For example, in wheat the increase in the release of sugars (i.e. efficiency of multi enzyme mixtures) it ranged from 22 to 76 %, in barley it was from 11 to 160 %, in corn it was from 6 to 74 %, in grain mixtures it was from 18 to 60 %. The authors demonstrate the simple way to evaluate the effectiveness of enzymes and suggest using it as a preliminary result when evaluating the possibility of selecting the effective multi enzyme composition for a specific diet and a specific feedstock, including non-traditional. This will allow a preliminary evaluation of the effectiveness of feed enzymes for specific raw materials and diets.
Comportamiento productivo en cuyes (Cavia cobayo) bajo el efecto de cuatro sistemas de alimentación
Authors: Hinojosa Benavides Rene Antonio , Yzarra Aguilar Adelfa , Rojas Yauri Golber
Published: May 2022

El presente estudio se desarrolló en la granja modelo del Pago de Azángaro Grande, Porvenir, Huanta, Ayacucho. Se trabajó con 40 cuyes machos de la raza Perú, de cuatro semanas de edad con un peso promedio de 0,435 Kg, utilizando forraje verde hidropónico (FVH) de cebada (Hordeum vulgare) como base alimenticia de cuatro sistemas de alimentación para evaluar durante 60 días su efecto sobre el comportamiento productivo: consumo de forraje (CF), conversión alimenticia (CA), peso vivo (PV), peso a la canal (PC), rendimiento a la canal (RC) y ganancia de peso (GP), aplicando cuatro tratamientos en un diseño completamente al azar. Los datos se procesaron con el análisis de varianza (ANVA), aplicando la prueba de rangos múltiples de Tukey P?0,05) para determinar diferencias entre medias de tratamiento. El mayor CF (P<0,01) fue del FVH + concentrado (42,49 g animal–1 día–1), seguidos de los valores 41,07, 40,05 y 36,46 para FVH + follaje de camote, FVH + residuos de molinería y FVH + alfalfa, respectivamente. La dotación de FVH + alfalfa permitió aumentar (P<0,01) el PV (915,70 g); la GP (9,06 g animal–1 día–1) y CA más eficiente (4,24). Se concluye que al suministrar FVH + alfalfa se consigue mayor PV, PC y RC, así como también mejor CA en el engorde de Cavia cobayo.
ELT Classroom Interaction in Turkey: A Systematic Review
Authors: ŞİMŞEK Gizem , ÇAPAR Meral
Published: May 2022

While there are studies of international scope on L2 classroom interaction, there is no review as of today within the Turkish context. The envisioned change in the national educational policy until 2023 with a special focus on foreign language education involves contextual specification and localization of language teaching, and thus creates a special need to take a closer look at what is happening inside the classroom on a country basis. For this reason, the present study looks at English language classroom interaction research in the Turkish context to find out the recent trends and developments in the area in terms of methodological choices and contexts of investigation. To do so, document review is adapted as a data collection technique. Search terms were selected as ‘classroom interaction’, ‘classroom interaction in Turkey’, ‘L2 classroom interaction’, ‘L2 classroom interaction in Turkey’, and ‘classroom interactional competence’. Studies were found using three databases and an index. After carefully applying the inclusion and exclusion criteria, 16 studies were chosen for the review and analyzed in terms of methodologies, research contexts, and findings. Results showed that in terms of methodology, studies were inclined to employ Conversation Analysis and they were conducted predominantly in a university setting with adolescent participants along with various subject areas. In line with these findings, the present review tries to shed light on the past and present state of English language classroom interaction research in Turkey and attempts to propose future directions as well.
Demanda hídrica atual e futura de grãos no Município de Sobral-CE / Current and future grain water demand in the Municipality of Sobral-CE
Authors: Filho José Bonifácio Martins , Dantas Tony Andreson Guedes , De Morais Camila Santos Barros , De Freitas Cley Anderson Silva
Published: May 2022

A produção de feijão e milho são os principais cultivos agrícolas do Estado do Ceará, as irregularidades das chuvas podem sujeitar essas lavouras a déficits hídricos prolongados afetando a produtividade dessas culturas, as incertezas das mudanças climáticas podem agravar a problemática. O objetivo desta pesquisa foi identificar a demanda hídrica atual e futura de feijão e milho no município de Sobral-Ce a partir de simulação de plantio realizadas em diferentes épocas. Foram coletados dados climatológicos históricos do INMET, NASA/POWER e dados futuros da plataforma PROJETA. Foi utilizado o modelo CROPWAT 8.0 para realizar as simulações de semeadura em diferentes épocas. Constatou-se que à medida que a data de semeadura é adiada maior é o requerimento de irrigação. A ETc por ciclo do feijoeiro esteve entre 278,2 e 302,3 mm. Para o milho a ETc por ciclo esteve entre 454,4 e 522 mm. Para o final do século 21, a demanda hídrica do feijoeiro pode aumentar em até 27,5%, e a do milho em até 10,9%, em comparação aos dados históricos.
An overview on the brazilian electricity production based on biomass / Uma visão geral sobre a produção brasileira de eletricidade com base na biomassa
Authors: Penteado Renato , Bessa Marcelo Rodrigues , Cantão Mauricio Pereira , Moro Fernando Gomes
Published: May 2022

In Brazil, renewable sources have gradually assumed an important role in the generation of electricity. This work aims to present the main sources of biomass used for electricity production in the country such as sugarcane, black liquor, forest residue, charcoal, rice hulls, elephant grass, biogas (animal and agriculture waste) and biomass for blast furnace gas generation. Based on official data, the article presents the main biomass sources for electricity production, their power generation capability and respective geographical location along the country. Additionally, the names of main power generation plants based on biomass are listed, and their characteristics are discussed.
Avaliação da eficiencia da clorexidina na redução da carga microbiana em linhas de água de equipamentos odontológicos / Evaluation of chlorhexidine efficiency in reduction of microbial load in water lines of dental equipment
Authors: Picoli Maria Eleonora Feracin da Silva , Botelho Maria Carolina Pereira , Ananias Fernando , Secco Angelo Stefano
Published: May 2022

A água desempenha papel fundamental na prática odontológica por participar do resfriamento e controle de temperatura de equipamentos de alta rotação, aspiração de detritos e enxague da cavidade oral. As unidades dentais utilizadas nestes procedimentos promovem a formação de aerossóis que podem carregar fragmentos de biofilme formados nas linhas de água, colocando em risco a saúde tanto dos pacientes como também da equipe odontológica. O objetivo deste trabalho foi avaliar a capacidade da clorexidina (CHX) em reduzir a carga microbiana da água que abastece equipos odontológicos. Os reservatórios dos equipos odontológicos de uma clínica odontológica de uma faculdade particular foram preenchidos com água de abastecimento público com e sem solução de CHX 0,2% para a lavagem das linhas de água. Após o procedimento de lavagem as amostras de água foram semeadas e as análises morfocolorimétrica e bioquímicas foram realizadas nas placas que apresentaram crescimento microbiano. Os resultados obtidos mostraram que as soluções de 0,2% de CHX utilizadas na lavagem dos equipamentos reduziu de 90% a 100% o crescimento bacteriano em todos os equipamentos analisados. Observou-se um crescimento predominante de cocos Gram positivos e catalase positivo e com arranjo em cachos, o que é compatível com as bactérias do gênero Staphylococcus. Os resultados obtidos mostraram que é imprescindível a adoção de uma rotina de lavagem para promover a descontaminação das linhas de água e neste contexto, a clorexidina se mostrou um eficiente na prevenção de contaminação cruzada.
Perfil das queimaduras em menores de 18 anos em centro especializado / Profile of burns in under 18 years of age in a specialized center
Authors: Pimenta Susany Franciely , Capobiango Jaqueline Dario , Capobiango Jaqueline Dario , Pieri Flávia Meneguetti , Pieri Flávia Meneguetti , Toninato Ana Paula Contiero , Toninato Ana Paula Contiero , Zampar Elisângela Flauzino , Zampar Elisângela Flauzino , Alves Jakeline Barbara , Alves Jakeline Barbara , Ferrari Rosângela Aparecida Pimenta , Ferrari Rosângela Aparecida Pimenta
Published: May 2022

Introdução: As queimaduras constituem um grave problema de saúde pública mundial, tendo em vista suas altas taxas de morbimortalidade. Objetivo: Analisar o perfil das internações entre vítimas de queimaduras menores de 18 anos em centro especializado. Método: Estudo de coorte retrospectiva, realizado no Centro de Tratamento de Queimados de um hospital universitário público no Norte do Paraná, Sul do Brasil, entre 2009 e 2019. Investigaram-se prontuários físicos e eletrônicos e planilhas. Foram calculadas frequências absolutas e relativas, e, para as contínuas medidas da média, utilizaram-se mediana e desvio padrão. Resultados: 591 crianças e adolescentes foram admitidos. As maiores vítimas de queimaduras foram as crianças na faixa etária de 2 a 6 anos (54,5%) e do sexo masculino (66,0%); quase a totalidade ocorreu no ambiente doméstico (96,4%); e o agente causal mais frequente foi o escaldo (55,3%), seguido da chama (37,0%). A mediana do tempo de permanência foi de 12 dias para o tratamento. Conclusão: As crianças foram as vítimas mais comuns, necessitando de internação prolongada devido à gravidade das queimaduras. Sendo assim, são imprescindíveis ações preventivas, para que se reduza a incidência de internação por esse agravo.
Influência da incorporação de resíduos na permeabilidade ao vapor de água de compósitos de matriz epoxídica / Influence of the incorporation of waste on the water vapor permeability of epoxide matrix composites
Authors: Velasco David Coverdale Rangel , Lopes Felipe Perissé Duarte , Simonassi Noan Tonini , Vieira Carlos Maurício Fontes
Published: May 2022

Seja um revestimento ou uma embalagem, a permeabilidade ao vapor de água é uma caracterização importante para verificar a eficácia dos mesmos. Neste sentido, este trabalho avalia o efeito da incorporação de resíduos, chamote e pó da casca de coco, na permeabilidade de compósitos de matriz epoxídica. O sistema epóxi utilizado neste trabalho foi o DGEBA/TETA, na estequiometria de 20 phr. A quantidade de carga foi igual a 20% do volume, sendo avaliadas formulações sem carga, reforçadas somente com chamote, reforçadas somente com pó da casca de coco e reforçados com ambos os resíduos. O ensaio de permeabilidade foi realizado conforme a ASTM D1653 por meio do método B, na condição C à uma temperatura de 23°C. Os resultados deste trabalho indicaram que a adição de chamote favorece a uma redução na permeabilidade ao vapor de água, enquanto a adição de pó da casca de coco tende a elevar a permeabilidade ao inserir descontinuidades na matriz.
Síndrome de Burnout em docentes do ensino superior / Burnout syndrome in teachers of higher education
Authors: Lucena Maria das Dores Lopes Ferreira , Silva Thamires Gonçalves da , Nogueira Emanuely Rolim , Sousa Juliane Carla Medeiros de , Feitosa Ankilma do Nascimento Andrade , Assis Elisangela Vilar de , Pascoal Kelly Patrícia Medeiros Falcão , Dias Michel Jorge
Published: May 2022

A síndrome de Burnout é caracterizada por alterações emocionais, mentais e esgotamento físico. Adquirida através da sobrecarga de trabalho, e atinge várias classes profissionais, inclusive a de docentes universitários. O objetivo da pesquisa foi verificar a prevalência da síndrome de Burnout em docentes do ensino superior. O estudo caracteriza-se por ser uma pesquisa de natureza transversal, analítica com abordagem quantitativa dos dados. O estudo foi constituído por 60 docentes da instituição e a amostra se deu por conveniência e aleatória. Foi aplicado um questionário elaborado pelos pesquisadores, que constou de dados sobre o perfil sociodemográfico, perguntas sobre questões de trabalho (turno, jornada, horas de descanso, tempo de profissão), e questões sobre estilo de vida. Para mensurar o esgotamento profissional foi utilizado o questionário de Maslach Burnout Inventory (MBI). Os resultados mostram que os docentes apresentaram um grau grave no domínio despersonalização (4,1), seguido do domínio exaustão emocional (2,7), e o terceiro fator referiu-se a baixa realização profissional (2,5), evidenciando um grau moderado com relação ao escore total da escala. O índice do escore total da escala encontrado no presente estudo indica que os docentes apresentam um grau de Burnout moderado. Não se evidenciou nenhuma relação estatisticamente significativa entre a jornada de trabalho e o esgotamento profissional, entretanto, apesar de não ter encontrado significância, observa-se que as horas de trabalho apresentaram um valor de correlação positiva com exaustão emocional (r=0,21). Foi constatado que os docentes apresentam um grau elevado de despersonalização. Foi possível identificar que as dimensões exaustão emocional e baixa realização profissional foram às menos comprometidas. Por fim, o estudo indica que os docentes apresentam um grau de Burnout moderado.
Photocatalytic degradation of salicylic acid employing TIO2 and ZNO in aqueous suspension / Degradação fotocatalítica do ácido salicílico empregando TIO2 e ZNO em suspensão aquosa
Authors: Reis Isabela Brito , Santos Melina Damasceno Rachid , Oliveira Débora Guimarães de , Lourdes Ângela Maria Ferreira de Oliveira , Silva Júlio César José da , Andrade Gustavo Fernandes Souza , Matos Maria Auxiliadora Costa , Rocha Lilian Lúcia da
Published: May 2022

The photocatalytic degradation of salicylic acid (SA) in reduced concentration (14.5 µmol L-1) was investigated using TiO2 and ZnO as photocatalysts under irradiation with UV light using UV-Vis spectrophotometry and HPLC analysis. The effect of different catalysts and catalyst loading, kinetic analysis, and dissolution of ZnO using the experimental conditions adopted were evaluated in acidic medium (pH = 3.0). Chronic ecotoxicity tests of the effluent from the reactions were conducted employing a concentration of 1 g L-1 of photocatalysts. The results showed that TiO2 and ZnO presented very similar performance for the SA degradation, whose profile followed first-order kinetics. The dissolution of ZnO observed was low using the experimental conditions adopted. Chronic ecotoxicity tests carried out showed that the use of ZnO/UV system for degradation of SA leads to a product with significant harmful effects on Ceriodaphnia dubia, even at reduced concentrations of the effluent from the reaction.
Elevada prevalência de consumo inadequado de psicoestimulantes por universitários da área da saúde / High prevalence of inadequate psychostimulants use among students from health area
Authors: Pereira Augusto Eleutério , Mata Bianca Souza da , Filho Carlos Ferreira , Fernandes Fernanda Stheffani Abreu , Yamagata Juliana Thamye , Medeiros Linda Maria Avelar , Lebourg Lorena Rocha , Sant’ana Raphael Ghedin Servidei , Dias Anna Marcella Neves , Mende Nathália Barbosa do Espírito Santo , Franco Danielle Cristina Zimmermann
Published: May 2022

Os psicoestimulantes são substâncias capazes de aumentar o estado de alerta, desempenho intelectual e concentração dos usuários. O uso dessas substâncias têm crescido exponencialmente por estudantes na busca de um melhor desempenho acadêmico e seu uso irracional pode causar efeitos indesejáveis graves. O objetivo deste estudo foi conhecer a prevalência e delinear o perfil do estudante que utiliza psicoestimulantes como automedicação, além de investigar fatores associados a esse comportamento dentre universitários da área da saúde. Trata-se de um estudo observacional, de caráter transversal composto por 378 universitários da área da saúde que responderam a um questionário sobre o uso de substâncias psicoestimulantes. Os resultados demonstraram que a maior parte da amostra fez uso de alguma substância psicoestimulante visando melhorar o desempenho acadêmico. Observou-se que há um predomínio de mulheres, com média de idade 24±4,5 anos e que a  maioria dos universitários cursavam Medicina entre o quinto e o oitavo período em turno integral. Residir com os familiares foi encontrado como fator de proteção para esse comportamento. A cafeína foi a principal responsável pela alta prevalência no consumo de psicoestimulantes encontrada nesta amostra. Diante do achado, sugere-se a importância da participação das instituições de ensino superior na conscientização sobre o uso irracional dessa classe de substâncias, visando assim, diminuir o consumo e, consequentemente, o risco do surgimento de efeitos indesejáveis relacionados ao uso de psicoestimulantes.
Utilização de revestimentos comestíveis de óleo de girassol, pectina natural, gelatina incolor e fécula de mandioca na conservação pós-colheita de acerola e goiaba / Use of edible coatings with sunflower oil, natural pectin, colorless gelatin and cassava starch in the postharvest preservation of acerola and guava
Authors: Rodrigues Erlane Andrade , Silva Francisca Liliane Rocha da , Barros Cristina Cardoso , Almeida Jardel Oliveira de , Barros Nágilla Karinne de Sousa , Nobre Eva Michelly Carvalho Santana
Published: May 2022

Frutas e hortaliças são muito sensíveis quando frescas, ocasionando empecilhos no armazenamento, persistindo da colheita até o consumidor. Com isso é necessário técnicas pós-colheita para evitar modificações bioquímicas. Este trabalho tem como objetivo discorrer sobre a elaboração dos revestimentos e descrever as observações percebidas nos revestimentos nos dia 1,3 e 7. As aplicações foram realizadas no Laboratório Multidisciplinar de Química. Os materiais utilizados e as goiabas foram comprados em supermercado local. As acerolas foram doadas e a pectina natural foi cedida pelo técnico do laboratório. Foram elaborados revestimentos utilizando 8g de fécula de mandioca, 5 g de gelatina incolor, e pectina natural. O método utilizado foi a imersão. Foram realizadas análises de Perda de Massa, Sólidos Solúveis Totais, pH e Acidez Titulável Total. Para Perda de Massa nas acerolas e goiabas o revestimento mais eficiente foi à base de gelatina. Os valores de Sólidos Solúveis Totais aumentaram ao longo dos dias para ambas as frutas. Houve um aumento do pH e consequentemente diminuição da Acidez Titulável Total em ambas as frutas. Os revestimentos de fécula, gelatina incolor, óleo de girassol e pectina mostram que os resultados para pH, Sólidos Solúveis e Acidez Titulável não variaram absurdamente.
A criança com câncer em cuidados paliativos e a assistência de enfermagem: uma revisão integrativa / The child with cancer in palliative care and nursing care: an integrative review
Authors: Dos Santos Alisson Junior , Andreazi Maria Júlia , Ferreira Marialice Vilela dos Santos Pagotto , Borges Amanda Aparecida , Martins Gleida Maria
Published: May 2022

No Brasil, o câncer é a primeira causa de morte por doença na população pediátrica. Tal situação ocorre devido ao diagnóstico tardio e as más condições de acesso aos serviços de saúde dos pacientes. Existem diferentes tratamentos para a cura do câncer em crianças, porém, pode ser que ainda assim não haja resposta. Com isso, torna-se necessário a implementação do cuidado paliativo. Os cuidados paliativos buscam amenizar o sofrimento do paciente e da família através de um cuidado humanizado e de respeito. A assistência à criança com câncer em cuidados paliativos requer dos profissionais de enfermagem, comprometimento aliado ao saber e a habilidade para praticar o cuidado. Os cuidados paliativos em crianças com câncer é um assunto abrangente e desafiador para os profissionais envolvidos. Trata-se de um estudo de revisão integrativa da literatura, tendo como objetivo identificar através das produções científicas, os principais aspectos relacionados às crianças com câncer em cuidados paliativos e a assistência de enfermagem. Após a aplicação dos critérios de inclusão e exclusão, os artigos selecionados foram analisados utilizando a abordagem qualitativa com categorização do conteúdo. Diante disso, entende-se que os estudos evidenciam a importância do processo da criança com câncer em cuidados paliativos, sendo permeado por diversas particularidades e que necessitam serem analisadas, proporcionando meios para que sejam desenvolvidas estratégias que garantam a qualidade e segurança do cuidado.
Air stripping da amônia aplicado a água resíduária de curtume / Air stripping of ammonia applied to tannery wastewater
Authors: Rios Carlos Alberto Segatto , Kacuta Stephanie Luri , Theodoro Joseane Debora Peruço , Ueda Ana Cláudia , Fazolo Ajadir
Published: May 2022

O objetivo deste trabalho foi remover o nitrogênio de água residuária de curtume, segregadas das etapas de depilação/caleiro e descalcinação do couro (2,09±0,05 g N-NH3.L-1, pH = 9,2±0,1 e T = 30,4±0,7oC). Foi utilizada torre de air stripping (diâmetro = 0,15 m, altura útil = 4 m) recheada com grade coalescentes (63 m2.m-3, volume vazios 96% e perda de carga 3 – 5 mmca), funcionando em contracorrente, seguida por lavador de gases (H2SO4 0,1M). Os efeitos do pH (9,0 – 12,0), vazão do líquido (0,5 –1,0 L.min-1) e vazão de ar (2 – 4 m3.min-1) foram avaliados em 20 ensaios, seguindo delineamento composto central rotacional (DCCR). Pela análise estatística (p<0,05), pôde-se inferir forte influência do pH no desempenho do sistema. Eficiências de remoção de N-NH3 acima de 80% foram obtidas em pH 11,5, T 30oC e taxas de aplicação superficiais de 3 m3m-2h-1 e 8150 m3m-2h-1, para líquido e ar, respectivamente.
Regressão linear e modelo Arima na previsão de vendas de gengibre no Equador / Linear regression and Arima Model in sales forecasts of Ginger in Ecuador
Authors: García Ángel Ramón Sabando , Peñate Mikel Ugando , Pérez Víctor Ernesto Márquez
Published: May 2022

Esta pesquisa apresenta a aplicação de técnicas estatísticas de regressão linear múltipla e modelo ARIMA nas previsões das demonstrações financeiras do gengibre, para o mercado local e internacional através da empresa Nature Product Gingerdale Cía. Ltda., da província de Santo Domingo de los Tsáchilas, Equador. Dados financeiros como: preço, quantidade exportada e níveis de vendas. Em particular, este estudo teve como foco a dinâmica econométrica que essas contas tiveram de janeiro de 2016 a 2020. Com base nesses dados, foi feita uma projeção até 2021. Adicionalmente, foi realizada uma análise exploratória, considerando os pressupostos de normalidade, multicolinearidade, homocedasticidade, autocorrelação e presença de ruído branco para os resíduos. Posteriormente, foi complementado com modelagem linear múltipla e a metodologia de séries temporais Box Jenkins. Em conclusão, o modelo de regressão linear múltipla para as demonstrações financeiras do gengibre é Y=-8103,317+5511,314X1+1,217 X2, com covariância global de 93,90%, por sua vez, a variável explicativa com maior incidência nas vendas é o quilograma de Ruivo que refletiu 91,50%, o preço apresentou uma covariância de 22,10%. O modelo de média móvel autoregressiva para o preço indicou um ARIMA (2,0,0) (0,0,1), em relação ao número de quilogramas/exportações um ARIMA (2,0,0) (0) é ajustado, 0.0) e baseado em vendas para um modelo ARIMA (2,0,0) (0,0,0) e por sua vez este modelo é ideal para fazer previsões, confirmando que o cenário é otimista para produção e exportação de gengibre para o Equador.
Repercussions of COVID-19 pandemic impacts on non-metastatic HER2-negative breast cancer diagnosis and neoadjuvant treatment over patients’ quality of life and mental health/ Repercussões dos impactos da pandemia COVID-19 no diagnóstico e tratamento neoadjuvante de câncer de mama HER2-negativo não metastático sobre a qualidade de vida e saúde mental das pacientes
Authors: Kemer Glendha de Sousa , Neto Ricardo Pasquini , Karvat João Gabriel Vicentini , Silveira Isabela Hodecker da , Bornia Maria Júlia Pilau , Morila Mariana Cristina Gomes , Magalhães Maria Cristina Figueroa
Published: May 2022

OBJECTIVE: To understand if COVID-19 pandemic impacts on delays in non-metastatic HER2-negative breast cancer diagnosis and in the beginning/development of neoadjuvant chemotherapy, as well as on changes in treatment plan to Paclitaxel intensification doses, impaired patients’ quality of life and mental health. METHODS: This is a cross-sectional study of 67 women diagnosed with non-metastatic HER2-negative breast cancer during the first sixteen months of COVID-19 pandemic and receiving neoadjuvant treatment due to pandemic impossibility of immediate definitive cancer surgery following the neoplasm diagnosis. Sociodemographic, Functional Assessment of Cancer Therapy Scale - General, Beck Anxiety and Depression Inventory were used for outcomes assessment. Inferential analysis was performed by Mann-Whitney, Pearson's chi-squared, and Fisher's exact tests. The adopted significance was 5%. RESULTS: The study revealed that the oncological diagnosis delays caused a worsening of the patients' physical (8 x 21; p = 0.001), functional (13 x 21; p = 0.03) and general (61 x 83; p = 0.004) well-being; retardment in the beginning of neoadjuvant chemotherapy decreased physical well-being (13 x 21; p = 0.01). Changes in treatment plan, to Paclitaxel doses intensification, had a negative effect on functional well-being (20 x 25.5; p = 0.04). COVID-19 pandemic impacts on neoplasm diagnosis and neoadjuvant treatment delays were also associated with psychosocial manifestations, including higher levels of severe anxiety (60% x 14.5%; p = 0.03 and 40% x 14%; p = 0.04) and depression (40% x 3.2%; p = 0.004 and 60% x 5.3%; p = 0.03) respectively. CONCLUSION: The present study shows that COVID-19 pandemic impacts on non-metastatic HER2-negative breast cancer patients’ diagnosis and neoadjuvant chemotherapy impaired patients' quality of life and mental health.
Long-term follow-up of a case of multicystic ameloblastoma treated with curettage: case report / Acompanhamento a longo prazo de um caso de ameloblastoma multi-cístico tratado com curetagem: relato de caso
Authors: Oliveira Maiolino Thomaz Fonseca , Almeida Vinícius Lima de , Rodrigues Cristóvão Marcondes de Castro , Paulo Luiz Fernando Barbosa de , Barbosa Darceny Zanetta
Published: May 2022

The conventional or multicystic solid ameloblastoma is the most common type with the majority of cases affecting the posterior region of the mandible and occurring between the third and fourth decades of life. The present study aims to report a case of multicystic ameloblastoma in which treatment by means of curettage was chosen and no evidence of recurrence was noted over 7 years of follow-up. Although the literature indicates aggressive surgical therapy as the best form of treatment for multicystic ameloblastoma, factors such as the clinical, radiographic and histopathological aspects of the lesion, patient age, postoperative morbidity, possibilities for aesthetic and functional changes must be evaluated together during treatment planning. In some cases, as in the report presented, conservative therapies such as aggressive curettage of the lesion can be effective in the long term, with no recurrence of the lesion and providing quality of life to the patient.
Recent Advancements in Ultrasound Transducer: From Material Strategies to Biomedical Applications
Authors: Li Jiapu , Ma Yuqing , Zhang Tao , Shung K. Kirk , Zhu Benpeng
Published: May 2022

Ultrasound is extensively studied for biomedical engineering applications. As the core part of the ultrasonic system, the ultrasound transducer plays a significant role. For the purpose of meeting the requirement of precision medicine, the main challenge for the development of ultrasound transducer is to further enhance its performance. In this article, an overview of recent developments in ultrasound transducer technologies that use a variety of material strategies and device designs based on both the piezoelectric and photoacoustic mechanisms is provided. Practical applications are also presented, including ultrasound imaging, ultrasound therapy, particle/cell manipulation, drug delivery, and nerve stimulation. Finally, perspectives and opportunities are also highlighted.