bluuebunny/crossref_metadata_2025 huggingface dataset:
Evolution of Cartilage Repair Technology
Authors: Zhou Chao , Heng Chen Qi , Li Zhanzhen , Wang Xin , Peng Jiang , Yu Changlong
Published: December 2022

Articular cartilage plays an important role in daily joint activities. With the aging of the social population, the degenerative cartilage injury and the sports injury caused by inappropriate exercise of young patients, etc., the incidence rate of articular cartilage injury is constantly rising, and the injured patients tend to be younger. Although articular cartilage has its corresponding metabolic activities, it is difficult to recover and regenerate itself once it is damaged due to lack of nerve, blood vessel, and lymphatic tissue Common articular cartilage injuries can be divided into three types according to the degree of injury: partial cartilage injury, full-thickness cartilage injury, and osteochondral defect. If partial cartilage damage and full-thickness cartilage damage are not found and treated in time in the early stage, further deterioration will lead to serious osteochondral defects. After the corresponding subchondral bone injury, the upward invasion of the upper cartilage layer will also cause the overall osteochondral injury. Therefore, whether the osteochondral injury caused by the top-down or the osteochondral injury caused by the bottom-up, it seriously affects the normal activities of human joints. It not only brings great inconvenience to the daily life of patients, but also causes huge economic and psychological burden to patients. At the same time, it also consumes a large number of social public medical resources. Therefore, seeking an effective osteochondral repair strategy is not only the urgent need and hope of the society, but also one of the clinical scientific problems that clinicians and scientists urgently need to solve.
Modeling of Structural Masonry
Authors: González del Solar Gerardo , Domizio María , Martín Pablo , Maldonado Noemi
Published: December 2022

Masonry is a composite material, and its behavior shows that its weaknesses lie in the minimum resistance of its components and the characteristics of the interfaces between them. Ceramic brick masonry has technological characteristics that make it suitable for housing and building functions. The bricks, of reduced dimensions and joined with mortars of variable characteristics, have the advantage of adapting to almost all construction projects considering the influence of the environment on their service life. The investigation of the structural behavior of masonry has had very significant advances in the laboratory during the last mid-century, which has allowed numerical modeling of the behavior of the material and validation of failure modes under seismic actions. The behavior of heritage masonry with thick walls differs greatly from simple masonry using conventional techniques and materials. These differences in behavior have only been confirmed through numerical simulation contrasted with experimental research. This chapter presents the numerical modeling used for simple and confined masonry with reinforced concrete and for very thick heritage masonry, using the finite element method validated with full-scale laboratory experiences.
Current Perspective of Prevention and Management of Diabetic Foot
Authors: Ramakrishnan Ramesh Deephikaa , Ahmed Shaikh Faiz , Ilyas Nadeem Muhammad
Published: December 2022

Diabetes-related foot infections and ulcers are frequent complications of the condition. These problems are also frequent, cause significant discomfort, frequently come back, and lead to morbidity and mortality, placing a huge financial burden on the patient and society. To start and direct treatment, it is crucial to comprehend the role of important contributing factors such as diabetic neuropathy, peripheral arterial disease, and immune system dysfunction. Beginning with a comprehensive physical examination and detailed history, diabetic foot disease is managed. A thorough medical examination should pay particular attention to any indication of diabetic foot ulcers or infection, as well as the symptoms of peripheral vascular disease and diabetic neuropathy. Analgesics and antibiotics should be used for pain management and infection control respectively. A multidisciplinary strategy focusing on patient education should be incorporated into prevention measures.
Overview of the Role of 308 Monochromatic Excimer Phototherapy for the Treatment of Alopecia Areata
Authors: K. Al Hamzawi Nabeel , S. Al Baaj Mohammed
Published: December 2022

Treatment of alopecia areata (AA) remains challenging despite the advancement in all these years. Excimer phototherapy has been claimed to offer a practical alternative therapeutic option without significant risks. It is considered a “super-narrowband” UVB light source that emits energy at 308 nm. Excimer laser treatment achieves a remarkable effect in T cell-mediated disorders; thus, it has been used successfully in patients with AA. Compared with narrowband UVB, the excimer laser can induce apoptosis in vitro, paralleled by improved clinical efficacy. Both excimer laser and lamp have a similar effect, but they differ in technology. In this chapter, an evaluation of the effectiveness of 308 nm monochromatic excimer phototherapy in AA treatment is clinically warranted. The evidence-based studies that adopted this option using both laser and light are discussed. In addition, the formulation of therapeutic protocol to study the outcome of excimer treatment on moderate-to-severe AA in adults and children is described.
We Are Humans: Discourse Representations of Identities in the Tweets of Nigerian LGBT People
Authors: Funmi Oyebanji Olubunmi
Published: December 2022

Same-sex sexuality is an important topic worth consideration, especially in Africa, where this is still highly considered taboo. As a result of subsisting homophobia in the Nigerian public sphere, social media provides a safe space for collective queer voices. Queer studies in the Nigerian context have mainly been sociological and legalistic. However, linguistic studies on the media representation of same-sex sexualities have explored how heteronormativity is accentuated, without adequate attention paid to how sexual minorities have also used language to emphasize their identities and resist homophobia. Drawing on the Social Identity Theory (SIT), Critical Discourse Analysis (CDA), and Systemic Functional Linguistics (SFL), this study examines the identities that Nigerian LGBT people construct for themselves on Twitter. I do this by considering discourses from the #EndHomophobiaInNigeria, which trended on Nigerian Twitter in 2020. Findings revealed that words, clauses, and other discursive strategies construe LGBT people as humans whose rights should be respected, as a community, and resilient. The significance of this study lies in the potential insights it provides into some of the struggles of the LGBT people for social acceptance and inclusivity, especially in a homophobic environment like Nigeria.
Do Computer Science Students Always Talk about Computer and Technology in English Class?: Exploring the Reflection of Mind from the Field of Study
Authors: Nida Faridatun
Published: December 2022

What someone learns is something that makes them curious. Curiosity builds interest and learning something based on interest is pleasant. Such feeling is necessary for teaching–learning activity to achieve the objectives of the lesson. Bringing to the context of teaching English as Foreign Language (EFL), a question is proposed. Do computer science students always talk about computers and technology even in English class? Based on the existing literature on English for Specific Purpose (ESP), EFL students will be given material lessons based on their field of study. But, are they happy with it? Are they not bored to talk about similar topics in every situation? Or should we make some changes to adjust the material of ESP to their interest? How about their need to learn English? This section will bring you to another view of understanding students’ interests in the aim of preparing material lessons in English class. By combining it with psycholinguistics, it is expected that the discussion provides an understanding to renovate the objectives of the lesson as well as the material lesson in English class, especially for teaching EFL in higher education.
Libido Boosting Functional Foods
Authors: Kumar Maurya Neelesh
Published: December 2022

Libido is a sexual desire or drive. Libido is biological desire’s emotional energy, especially sexual desire. Biopsychosocial variables affect libido. Biologically, sex hormones and nucleus accumbent neurotransmitters (mainly testosterone and dopamine) govern human desire. Working, family, mentality, and stress might affect libido. Medical disorders, drugs, lifestyle, relationships, and age might affect libido (e.g., puberty). Hypersexuality is having frequent or suddenly increased sexual impulses; hyposexuality is the opposite. In psychoanalytic thought, libido is a mental drive or energy, connected with sexual instinct but is also present in other innate urges. A man may want sex but not be able to act on it, or may not for medical, moral, or religious reasons. Repressing or sublimating an urge is psychological. One can participate in sexual activity without a sire. Stress, illness, and pregnancy affect sperm drive. Testosterone, estrogen, progesterone, oxytocin, and norepinephrine act as serotonin This book chapter talks about how functional foods such as spinach, dark chocolate, peppers, green tea, oysters, crab, and pumpkin seeds, which contain neurotransmitters, affect libido.
Automated Measurement of Traction Line Parameters for Railways
Authors: Koniar Dušan , Hargaš Libor , Šindler Peter , Paškala Marek
Published: December 2022

In Slovakia, various rail track segments are being rebuilt due to increased railroad speed and safety standards. Assembly wagons were fitted with an automated measurement device to assess the condition and geometry of the traction lines. The theory behind measuring fundamental traction line parameters like line height and stagger is discussed in this book chapter, along with the development of a measurement electronic device with appropriate sensors and a LabVIEW application for evaluating measured data and controlling and interacting with the electronic device. The Railways Research and Development Institute at Vrútky (Slovakia) is where the system was tested and put into use. This work also demonstrates effective and robust collaboration between the academic environment and praxis. The possibilities of using LabVIEW in industrial applications and its cooperation with the developed measuring device will be presented in this book chapter. The possibilities of communication of the device with the developed software and various methods of algorithm design using several structures found in the LabVIEW development environment will be presented.
Comparative Assessment of Propofol and Ketamine on Hemodynamic Indices and Cerebral Oximetry of Pediatric Patients Undergoing Cardiac Catheterization
Authors: Sepehri Nour Maryam , Dabbagh Ali , Fani Kamal
Published: December 2022

Background: Propofol and ketamine are widely used in the induction and maintenance of anesthesia and sedation with different cardiovascular and respiratory effects. In cardiac anesthesia (including pediatric cardiac catheterization), due to the high risk of neurologic complications, cerebral oximetry can effectively monitor cerebral blood oxygen saturation to prevent neurological and respiratory complications. Objectives: This study aimed to compare the effect of propofol and ketamine on hemodynamic indices and cerebral oxygenation results in children undergoing cardiac catheterization. Methods: This clinical trial study was performed on 48 patients who were candidates for cardiac catheterization by easy and continuous sampling. Patients were randomly divided into 2 groups: ketamine and propofol. In the ketamine group, ketamine was injected at a dose of 1 - 2 mg/kg, and in the propofol group, propofol was injected at a dose of 0.5 - 1.5 mg/kg. In both groups, incremental doses were repeated as needed. The hemodynamic indices, including blood pressure, heart rate, and peripheral SpO2, were recorded. Cerebral regional oxygen saturation (RSO2) was recorded using infrared spectroscopic sensors. Data were analyzed using chi-square, independent t-test, paired t-test, and 1-way analysis of variance (ANOVA). Results: The results showed that all demographic characteristics of patients and also the mean duration of catheterization were homogeneous between the 2 groups. Hemodynamic indices (such as systolic, diastolic, and mean arterial blood pressure) did not show a significant difference between the 2 groups; however, in the ketamine group compared to the propofol group, the heart rate was significantly higher, and mean RSO2 was lower (P = 0.023). Conclusions: Propofol has fewer complications than ketamine and is a good drug for sedating children undergoing cardiac catheterization.
Hypertext: Electronic Writing and its Literary Tradition
Authors: Cowley Julian
Published: December 2022

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Dos libros sobre sociolingüística
Authors: Falk Johan
Published: December 2022

Med utgångspunkt i två översiktsverk presenteras i denna artikel problemställningar och metoder inom sociolingvistik samt redovisas forskningsresultat från det spanskspråkiga området.
Trois décennies de littérature suédoise en France
Authors: Tegelberg Elisabeth
Published: December 2022

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MEDIDAS DE PREVENTIVAS ANTE EL DEL COVID 19 EN ADULTOS DE 36 A 60 AÑOS DEL BARRIO PROGRESO DEL MUNICIPIO DE PUERTO RICO DEL DEPARTAMENTO DE PANDO DURANTE LA GESTIÓN 2020
Authors: Guerrero Va quez Luz  Gabriela
Published: December 2022

Se identificaron las medidas de preventivas ante el COVID-19 en personas adultas de 36 a 60 años del Barrio Progreso del municipio de Puerto Rico del departamento de Pando, el cual fue un estudio cuantitativo, básica, prospectivo y transversal. Como instrumento se aplicó una guía de encuesta que permitió identificar cuáles eran las medidas preventivas empleadas por los moradores encuestados. Los resultados indican que la mayoría (54%) menciona que realiza el lavado de manos de 1 a 2 veces, el 24 % refiere que no se realiza el lavado de manos, en cuanto al uso del jabón durante el lavado de manos el 100% si lo utiliza, con respecto al uso de alcohol ya sea el gel o líquido, el 81% no hace uso solo el 19% utiliza el alcohol como medida de prevención, en cuanto al uso de mascarillas o barbijo el 50% menciona que si usa el barbijo sin embargo el 41% no utiliza el barbijo. De los participantes del estudio el 81% refiere que si ha consumido vitaminas como medida de prevención, un 14% menciona que a veces consumió vitaminas y el 5% nunca consumió vitaminas. Sobre el uso de plantas medicinales como medida de prevención el 87% menciona que hizo uso del eucalipto, jengibre y manzanilla el 8% señala que no consumió ningún tipo planta medicinal y el 5% menciona que utilizó el eucalipto. De acuerdo a los resultados obtenidos se ha podido identificar que gran parte grupo estudiado no toman las medidas de prevención necesarias pudiendo se riesgoso para que se presente el contagio entre personas
PERCEPCIÓN DE LOS CUIDADOS DE ENFERMERÍA EN LA FASE DEL POSTOPERATORIO INMEDIATO EN EL HOSPITAL ROBERTO GALINDO TERÁN
Authors: Rivera Vargas Maura Elena
Published: December 2022

La Presente investigación es un estudio Cualicuantitativo, analítico – descriptivo, transversal con aplicación de h e r r a m i e n t a s e instrumentos: Cuestionario, guía de observación y entrevista estructurado en una muestra de 13 Profesionales de Enfermería, la misma busca responder las percepciones en cuanto a sus conocimientos, habilidades y destrezas sobre los cuidados dirigido a pacientes en fase del postoperatorio inmediato en el área quirúrgica del Hospital Robert Galindo Terán (HRGT). Obteniendo los siguientes resultados: la realización de cursos de capacitación continua en el manejo del usuario posoperatorio inmediato solo lo realizan el 66%, no realizaron cursos posgraduales el 69 %, pero positivamente el 54% tiene una antigüedad, de entre 6 a 10 años de trabajo en el servicio del área quirúrgico La percepción en cuanto a los conocimientos, son insuficientes referente a la valoración física, estado de conciencia, cuidados de recepción del paciente, características de heridas, administración de medicamentos y vendajes entre otros. Algunos resultados de la guía de observación demuestran que no valoran adecuadamente la presión arterial considerando el nivel pre anestésico en la presión sistólica en un 62%, inadecuado manejo de electrocardiograma en un 31%, así como falta de valoración de la Presión Venosa Central en un 77%, una ejecución inadecuada de los vendajes compresivos en un 31%. Así mismo es disminuido el dominio de habilidades en cuanto a los cuidados del paciente con complicaciones postoperatoria como ser: Retención urinaria, hemorragias, embolia pulmonar, retención urinaria, situaciones que pueden presentar pacientes en la fase del postoperatorio inmediato, cuidados que deben por el personal de enfermería del área quirúrgica del HRGT, así como procedimientos de reanimación cardio pulmonar (RCP) De acuerdo al 100% de los entrevistados, indican no contar con instrumentos como guías, protocolos de atención, así como un programa educativo en el manejo de pacientes en la fase del postoperatorio inmediato, por lo que se recomienda desarrollar instrumentos como guías y protocolos que orienten a la ejecución de tareas, cualificar el cuidado enfermero, normar y fortalecer la acción del personal de enfermería
ANALISIS RASIO KEUANGAN PADA KOPERASI SIMPAN PINJAM SARI CENDANA WAINGAPU KABUPATEN SUMBA TIMUR
Authors: Bani Febrianti Doku , Adindarena Vindya Donna
Published: December 2022

Analisis rasio keuangan sangat diperlukan oleh koperasi untuk mengetahui kinerja keuangan setiap periodenya. Penelitian ini bertujuan untuk mengetahui nilai rasio likuiditas, rasio solvabilitas, rasio profitabilitas pada koperasi simpan pinjam sari cendana dari tahun 2017-2020. Penelitian ini merupakan penelitian kuantitatif. Metode pengumpulan data yang digunakan adalah dokumen dan wawancara. Metode analisis data yang digunakan adalah analisis rasio keuangan. Hasil penelitian menunjukan bahwa: (1) Rasio Likuiditas dengan Rasio Lancar (Current Ratio) pada KSP Sari Cendana Waingapu periode 2017-2020 berfluktuasi dan dalam kriteria  “sangat tidak sehat”. (2) Nilai Rasio Solvabilitas dengan perhitungan Debt to Asset Ratio (DAR) pada KSP Sari Cendana Waingapu periode 2017-2020 berfluktuasi dan cenderung mengalami peningkatan dan dalam kriteria “sehat”. Sedangkan dengan perhitungan Debt To Equity Ratio (DER) berfluktuasi dan cenderung mengalami penurunan dan dalam kriteria Sehat” (2017), “Kurang Sehat” (2018/2020), dan “Tidak Sehat” (2019). (3) Rasio profitabilitas dengan perhitungan Return On Asset (ROA) pada KSP Sari Cendana Waingapu periode 2017-2020 cenderung mengalami penurunan dan dalam kriteria “Tidak Sehat”. Sedangkan dengan perhitungan Return On Equity (ROE) berfluktuasi dan cenderung mengalami penurunan dan dalam kriteria “Sehat” (2017-2018) dan “Kurang Sehat” (2019-2020).
Jurnalis Dan Terorisme (Studi Pustaka Etika Jurnalis Dalam Meliput Dan Memberitakan Kasus Terorisme Di Media Siber)
Authors: Nadhiroh Nadhiroh
Published: December 2022

Media memainkan peran penting dalam memberitakan peristiwa terorisme. Para jurnalis baik cetak, elektronik maupun online mempunyai etika yang idealnya dilaksanakan saat meliput dan memberitakan kasus  terorisme. Namun, seiring perkembangan era digital yang menuntut sebagian media untuk cepat menyampaikan informasi, membuat sebagian jurnalis kurang disiplin mentaati etika yang berlaku. Artikel ini mengkaji tentang studi pustaka etika jurnalis dalam meliput dan memberitakan kasus terorisme di era digital. Metode yang digunakan dalam penelitian ini yaitu studi pustaka terhadap peraturan-peraturan yang terkait kode etik jurnalis dalam peliputan dan pemberitaan kasus terorisme di media siber.
Pengaruh Positioning, Persepsi Harga dan Citra Merek dengan Kepuasan Konsumen dan Dampaknya Terhadap Keputusan Pembelian (Studi pada Konsumen Erha Skincare di Tangerang)
Authors: Himawan Sinulingga Philip Chandra
Published: December 2022

Pendahuluan: Seiring dengan perkembangan zaman yang semakin maju, tingkat persaingan pun semakin ketat. Sebagai pendiri usaha, mereka harus mampu menghadapi perubahan kebutuhan dan keinginan konsumen. Tujuan: Penelitian ini bertujuan untuk mengetahui adanya pengaruh Positioning, Persepsi Harga, dan Citra Merek dengan Kepuasan Konsumen dan dampaknya terhadap Keputusan Pembelian pada Konsumen ERHA Skincare di Tangerang. Metode: Metode yang diterapkan dalam penelitian ini adalah metode deskriptif kuantitatif yaitu dengan mengumpulkan data primer melalui kuesioner yang dibagikan kepada responden dan data sekunder sebagai pendukung penelitian ini. Populasi dalam penelitian ini adalah konsumen ERHA Skincare di Tangerang, selanjutnya dengan metode purposive sampling dan dihitung besarnya sampel didapatkan sebanyak 100 orang responden. Data yang telah dikumpulkan diolah dengan program smartPLS ver 3.0, sehingga diketahui deskriptif responden, frekuensi distribusi data, hasil uji outer dan inner model, hasil uji determinasi dan hasil uji hipotesis. Hasil: Berdasarkan hasil analisis keofisien determinasi Analisis Variant (R2), dapat disimpulkan bahwa nilai R Square berpengaruh secara bersama-sama (simultan). Positioning, persepsi harga, citra merek berpengaruh terhadap Kepuasan Konsumen sebesar 0,43 atau 43%. Kesimpulan:  Kesimpulan tersebut berdasarkan nilai thitung pada ketiga variabel bebas, satu variabel terikat dan satu variabel intervening pada ttabel dengan taraf signifikansi ?=5%. Hasil pengukuran kofisien determinasi (R2) menunjukan variasi ketiga variabel bebas dalam penelitian ini mampu menjelaskan sebesar 43% model dalam penelitian ini dan ketiga variabel bebas beserta satu variabel intervening mampu menjelaskan sebesar 41% model dalam penelitian ini.
Emerging Leaders: Welcoming Students to ALSC
Authors: Han Hyunjin , Bressingham Ashley
Published: December 2022

The American Library Association (ALA) Emerging Leaders (EL) program enables newer library workers from across the country to participate in problem-solving work groups, network with peers, gain an inside look into ALA structure, and have an opportunity to serve the profession in a leadership capacity. As a part of the program, participants work in groups on a research project and display the result of their work during the ALA Annual Conference.
People Like Me in Places Like Mine: Authentic Representation in Rural Picturebooks
Authors: Erekson James , Youngs Suzette , Kyser Christine , Benke Lu
Published: December 2022

Librarians serve children in specific locations. As they seek to fulfill the Association for Library Service to Children’s (ALSC) promise to help “children make cross-cultural connections and develop skills necessary to function in a culturally pluralistic society,” they must consider a book’s authenticity and specific geography.Young readers in rural places experience different challenges from those in urban and suburban settings as do rural librarians experience different collection development demands than do those in urban and suburban settings, especially when rural stereotypes dominate in children’s books. Because rural identities are tied to each child’s place, daily rural life may feel different on the coast than on the prairie, or in mountains, woods, wetlands, and deserts. Only 9 percent of the rural US workforce is in agriculture, with 91 percent having livelihoods in service, tourism, government, education, manufacturing, mining, health care, and energy. Yet much children’s literature continues to present settings where family farming dominates the rural economy, neglecting the diversity of rural work.
Editor’s Note
Authors: Verbeten Sharon
Published: December 2022

I’m a people person. Even those of you who don’t know me personally could probably intuit that from my Editor’s Notes.Meeting new people and greeting customers is my favorite part of being a librarian. And, sure, I get plenty of opportunity to do so at the library—but outreach is even more exciting for a gregarious soul like me. I’ll share some of my favorite “people meeting” moments over the years.
A Grandin Scheme: Learning Empathy, Teaching Concepts
Authors: Matthews Allison
Published: December 2022

Mention therapy dogs and children are most likely excitedly familiar with the cute and common four-legged helpers. Perhaps some have heard of or even participated in equine therapy. Therapy cows though—or stranger still—therapy for the cows? Unlikely. Yet, it is a real thing!In Bell Fork (NC) Elementary’s book promotion, which can be used as a stand-alone activity or as a component of a larger library program, students learn about renowned animal scientist Temple Grandin, who credits her autism for giving her the ability to approach problems differently.
Traços funcionais de espécies arbóreas de cerrado sensu stricto e sua importância para a manutenção de comunidades nativas
Authors: Costa João Paulo , Dias Neto Olavo Custódio , Santos Lilian Cristina Silva , Rodrigues Amanda Wolberg , Rios Jovan Martins , Prado-Júnior Jamir Afonso , Vale Vagner Santiago do
Published: December 2022

Traços funcionais são características morfo-fisiológicas das espécies capazes de influenciar significativamente os processos ecológicos em seu ambiente natural e podem ser utilizadas para formar grupos funcionais. Grupos funcionais são espécies com semelhantes características e funções nas comunidades. O objetivo inicial do estudo foi detectar padrões quanto aos traços funcionais de espécies arbóreas de cerrado sensu stricto. Buscamos responder: 1) é possível agrupar as espécies em grupos funcionais utilizando traços foliares e de arquitetura, 2) quais traços melhor explicaram a sobrevivência/manutenção das espécies em suas comunidades. Foram avaliados os traços funcionais foliares e de arquitetura de 32 espécies arbóreas de cerrado sensu stricto. As análises foram capazes de formar quatro grupos funcionais distintos para cerrado sensu stricto. O grupo 1 apresentou árvores com maior densidade da madeira, massa seca e área foliar e altos valores de volume e biomassa. A maioria das espécies possuem folhas com baixa área foliar específica e alta área foliar e massa seca. O grupo 2 apresentou espécies de pequeno porte, com baixo volume de copa e biomassa, entretanto, foi o grupo com maior área foliar específica e percentual de água na folha. O grupo 3 foi formado por espécies com o menor aporte de biomassa e volume de copa do estudo, e também apresentou valores baixos para densidade de madeira, área foliar e massa seca, sendo espécies tipicamente de pequeno porte. O grupo 4 apresentou os maiores valores de volume de copa, biomassa e súber do estudo, configurando o grupo de espécies com o maior porte do estudo, porém, apresentou baixos valores de área foliar específica e percentual de água na folha.
Mirmecofauna em duas fitofisionomias do Bioma Cerrado e plantio de eucalipto em Minas Gerais, Brasil
Authors: Souza Jaqueline da Silva , Fleck Marciane Danniela , Delabie Jacques Hubert Charles , Boscardin Jardel
Published: December 2022

O Cerrado é o segundo maior bioma brasileiro e vem sofrendo com os impactos negativos em sua área original. Tais impactos podem ser mensurados por meio de bioindicadores, dentre os quais, destacam-se as formigas. Nesse contexto, o presente estudo objetivou avaliar a diversidade de formigas associadas a duas áreas de diferentes fitofisionomias do bioma Cerrado e um plantio de eucalipto, em Monte Carmelo – MG (18º43’29” S e 47º29'55" O). Para a caracterização da mirmecofauna, foram utilizadas armadilhas de queda, instaladas a 10 m de distância entre si, no interior de três áreas distintas: Várzea e Cerradão (vegetação típica do bioma Cerrado) e um plantio de Eucalyptus sp. As coletas foram realizadas mensalmente, de janeiro a dezembro de 2018. Em cada coleta utilizaram-se oito armadilhas por área, totalizando 24 armadilhas. Após 48 horas de exposição, o material coletado nas armadilhas foi recolhido e levado ao laboratório para triagem e sequente identificação. No período do estudo, foi encontrada a maior abundância de formigas na área de Eucalipto (749), seguidas das áreas Várzea (291) e Cerradão (274). As áreas avaliadas possuem a mesma riqueza de espécies de formigas, sendo que foram encontradas 17 espécies de formigas em cada área, o que corroborou com a curva de rarefação que não identificou diferença significativa entre as áreas. A área de Cerradão apresentou maiores índices de diversidade e equitabilidade (H´ = 2,07 e J´ = 0,73). O diagrama de Venn indicou que as três áreas compartilharam 10 espécies de formigas entre si. Nesse aspecto, a área de Cerradão apresentou Azteca alfari, Linepithema neotropicum e Ectatomma opaciventre, como espécies exclusivas, enquanto as demais áreas apresentaram duas espécies cada. Os índices de diversidade, equitabilidade e composição da mirmecofauna encontrados, caracterizam a área de Cerradão como um ambiente ecologicamente mais equilibrado.
Análises diretivas para o processo de gestão da arborização de calçadas em São Pedro do Sul, RS
Authors: Felippe Bruno Moreira , Bolzan Marina Rigon , Eugenio Fernando Coelho , Bobrowski Rogério
Published: December 2022

O planejamento e manejo da arborização viária são indispensáveis para o desenvolvimento urbano sustentável e requerem o conhecimento da situação existente. A identificação e a distribuição das espécies florestais presentes nas vias públicas são fundamentais para subsidiar o planejamento adequado da arborização viária. A partir dessas informações, pode-se realizar a caracterização geral do local de interesse e identificar áreas prioritárias para ações de manejo. Dessa maneira, o presente estudo teve como objetivo identificar áreas prioritárias para intervenções na arborização viária de São Pedro do Sul e verificar a influência das espécies vegetais exóticas no índice de diversidade. Realizou-se um censo quantitativo coletando-se informações sobre a posição geográfica das árvores e arbustos e identificação das espécies vegetais. Determinaram-se as frequências para famílias e espécies e calculou-se o índice de Shannon-Wiener (H’) para diversidade de espécies. A espacialização das árvores dentro dos limites dos bairros e vias foi realizada por meio de um mapa de Kernel. Por fim, obteve-se a densidade de indivíduos por quilômetro de via em cada bairro. Foram catalogados 3365 indivíduos, dos quais 98 não foram passíveis de identificação. Registrou-se a presença de 91 espécies, distribuídas em 34 famílias. A família Fabaceae obteve a maior densidade de indivíduos (19,55%). As espécies exóticas concentraram 63,98% da população, sendo a espécie Ligustrum lucidum a mais frequente (15,66%). O município obteve valores médios de 41,18 árvores por quilômetro de via e índice de diversidade de 3,22. O índice de atenção possibilitou identificar os bairros com maiores necessidades de adequação quanto à densidade da arborização viária. O mapa de Kernel possibilitou a visualização da distribuição da arborização viária. Observou-se também que a diversidade de espécies vegetais mensurada em cada bairro está representada essencialmente por espécies vegetais exóticas invasoras e que, à medida que os valores de diversidade aumentam, a composição da arborização com árvores de espécies invasoras se destaca.
Efeito da qualidade de luz na multiplicação e enraizamento in vitro de Cedrela odorata L.
Authors: Santos Junior Cezário Ferreira dos , Rech Tássio Dresch , Costa Murilo Dalla , Navroski Marcio Carlos , Boff Pedro , Boff Mari Inês Carissimi
Published: December 2022

A fonte de iluminação pode regular a morfogênese da cultura in vitro. O objetivo deste trabalho foi avaliar o efeito de quatro diferentes fontes de luz do tipo LEDs: branco, vermelho, azul e rosa (50% azul e 50% de vermelho) sob as fases de multiplicação e enraizamento de culturas in vitro de Cedrela odorata. Na fase de multiplicação, usou-se o meio de cultura MS adicionado a 8,8 μM de 6-benzilaminopurina (BAP) e 0,28 μM de ácido giberélico (GA3) sob efeito dos tipos de luz. Para o enraizamento, foi avaliada a interação dos tipos de luz sob duas concentrações de ácido indolbutírico AIB (4,9 e 9,8 μM). Na multiplicação, sob a luz LED branco obteve-se 3,9 brotações por explante, com maior comprimento dos brotos (2,1 mm) e ausência de oxidação. Da mesma forma, no enraizamento, as culturas sob luz LED branco foram superiores no número de raízes formadas e menor valor de oxidação. Verificou-se que a luz LED branco otimizou a fase de multiplicação e enraizamento na micropropagação dessa espécie florestal segundo este estudo.
Soil carbon stocks and labile fractions of organic matter under agroforestry system in breast of pernambucan altitude
Authors: Crespo Cristiane Maria Gonçalves , Piscoya Victor Casimiro , Araujo Filho Renisson Neponuceno de , Lima Samila Bezerra , Moraes Alex Souza , França Manoel Vieira de , Fernandes Milton Marques , Cunha Filho Moacyr , Gomes Filho Raimundo Rodrigues , Cavalcante Nayane Laisa de Lima , Melo Robson Carlos Pereira de , Piscoya Thaisa Folha , Roncal Jorge Piscoya , Pereira Ludmilla Morais , Holanda Francisco Sandro Rodrigues , Pedrotti Alceu , Feitosa Thaiana Brunes , Oliveira Patrick Peres
Published: December 2022

Intense soil preparation and disturbance in crops, over time, reduces the quantity and quality of soil organic matter. Given this context, this work aimed to determine soil carbon stocks and labile fractions under agroforestry system (AFS) and toposequences in an altitude marsh, Taquaritinga do Norte, Pernambuco, Brazil. The study was carried out at the Yaguara farm, and the areas studied were native forest with 4.57 ha and coffee plantation in shade with native forest with 25.59 ha. Soil samples were collected in four trenches measuring 1.5 x 1.5 x 0.60 m, with a distance of 50 meters. Soils were collected at depths of 0–20, 20–40 and 40-60 cm, followed by chemical, physical and density analyzes to determine soil carbon stocks and labile fractions. The area with shaded coffee showed higher values ​​of soil carbon stocks at depths of 0-20 cm and 20-40 cm. At a depth of 40-60 cm, the AFS top toposequence showed the highest carbon stock with 11.73 Mg ha-1, followed by the area with native vegetation with 10.6 Mg ha-1, slope with 9.23 Mg ha-1 and pediment with 7.00 Mg ha-1. It was found that the top toposequence with shaded coffee exhibited a greater stock of labile carbon at depth 0-20 cm with a value of 1.06 Mg ha-1, followed by the bedding areas (SAF) with 0.88 Mg ha-1, native forest with 0.79 Mg ha-1 and slope with 0.67 g kg-1. However, the area of native vegetation showed the highest value of labile carbon at a depth of 40-60 cm. It was concluded that the area with shaded coffee in the top toposequence showed great capacity to increase total carbon stocks and labile carbon stocks of soil organic matter.
Biomassa de Dendrocalamus giganteus como recurso bioenergético
Authors: Silva Gustavo Vargas da , Farias Daniel Tavares de , Coldebella Rodrigo , Wacht Wanessa Lunardi , Pedrazzi Cristiane
Published: December 2022

Buscar alternativas sustentáveis para diversificar a matriz energética tornou-se uma meta a ser alcançada por todas as nações. A biomassa de bambu pode ser uma dessas alternativas por ser uma fonte de energia neutra em CO2 com a possibilidade de uso como combustível na forma sólida, líquida ou gasosa. Neste estudo objetivou-se avaliar o efeito da idade de 12 e 7 anos nas propriedades químicas e energéticas de colmos de Dendrocalamus giganteus. Para isso, foram determinados os teores de extrativos totais, de lignina, de materiais voláteis, de cinzas e de carbono fixo, além da densidade básica, poder calorífico superior e densidade energética dos colmos. Também foram realizadas as avaliações de rendimento gravimétrico do carvão vegetal e do licor pirolenhoso produzidos a partir da carbonização do material. Os bambus com 12 e 7 anos de idade apresentaram boas propriedades químicas para fins energéticos. Os valores de teor de lignina, materiais voláteis, carbono fixo e cinzas foram semelhantes entre as idades. Entretanto, o poder calorífico líquido, densidade energética, rendimento gravimétrico do carvão vegetal e ácido pirolenhoso aumentaram com o aumento da idade, e os maiores valores foram verificados para os colmos com 12 anos. A espécie Dendrocalamus giganteus apresentou propriedades físico-químicas e energéticas, e atendem aos critérios de qualidade esperados para o aproveitamento dessa biomassa para produção de energia térmica.
Ação antagonista in vitro de Trichoderma spp. sobre Fusarium oxysporum
Authors: Quevedo Alexsandra Cezimbra , Muniz Marlove Fátima Brião , Savian Lucas Graciolli , Sarzi Janaina Silva , Saldanha Mateus Alves
Published: December 2022

A cultura da erva-mate está exposta a doenças que prejudicam o desenvolvimento da planta, reduzindo a produtividade. Dentre essas doenças têm-se a podridão-de-raízes causada por Fusarium spp. O objetivo deste trabalho foi avaliar a ação antagonista in vitro de Trichoderma spp. sobre Fusarium oxysporum, agente causal da podridão-de-raízes em erva-mate. Foram utilizados quatro isolados de Trichoderma spp. e um isolado de Fusarium oxysporum. A ação antagônica de Trichoderma spp. sobre F. oxysporum foi avaliada por meio do teste de pareamento de culturas e de metabólitos voláteis. No teste de pareamento de culturas, os isolados de Trichoderma spp. inibiram o crescimento micelial de Fusarium oxysporum, com percentual de inibição que variou de 13,06% a 14,24%. No teste de metabólitos voláteis, T. tomentosum e T. harzianum apresentaram os melhores resultados de inibição, com 27,70% e 24,46%, respectivamente. Assim, pode-se concluir que Trichoderma spp. apresenta ação antagonista in vitro contra F. oxysporum, agente causal da podridão-de-raízes em erva-mate.
Equilíbrio químico: tendências do ensino e aprendizagem em publicações científicas a partir da análise de periódicos nacionais e internacionais
Authors: Miranda Ana Carolina Gomes , Patrocínio Sandra de Oliveira Franco , Silva Daniel Lima
Published: December 2022

O processo de ensinar e aprender conceitos relacionados ao Equilíbrio Químico (EQ) vem se mostrando desafiador em todos os níveis da educação. A presente investigação tem como objetivo identificar as tendências de ensino e aprendizagem relacionadas ao tema. Para isso, foi realizada uma pesquisa de caráter bibliográfico, empregando da análise de artigos publicados em periódicos nacionais e internacionais da área do ensino de Química e Ciências durante o período compreendido entre 2001-2021. Os resultados revelaram as principais concepções alternativas dos estudantes e algumas das tendências que marcaram os estudos nessa área, tais como predominância da abordagem cinética do EQ; emprego da base teórica construtivista nas abordagens; utilização estratégias didáticas do tipo analogias, resolução de problemas, estudo de caso, atividades experimentais e utilização das Tecnologias da Informação e Comunicação (TIC).
A política do desinvestimento e o encarceramento como fenômeno desejado
Authors: Reichelt Gabrielle , De Lara Lutiane
Published: December 2022

O presente artigo discute os mecanismos de controle e punição que perpassam uma lógica de investimento biopolítico na vida. Tal lógica engendra jogos de poder e discursos que marcam os corpos e as liberdades de determinadas populações. Parte-se de um estudo genealógico realizado a partir de materiais provenientes de grupos focais, com jovens em situação de prisão, e da análise dos comentários públicos de matérias jornalísticas do site G1 - Portal de notícias da Globo, relacionados ao campo penal. Os jovens do grupo focal denunciam jogos de saber-poder que os expõem a uma vida matável e desinvestida. O tensionamento dessas linhas interconectadas se tornam potentes para que se pensem novas possibilidades de atuação ética política. Ressalta-se assim a importância de pensar o campo penal para além do ato ou da pena, como um fenômeno isolado, para colocar em questão um problema social.
Investigation of the effect of vitamin K1 prophylaxis on newborn screenings tests in newborns
Authors: Caglayan Murat , Gonel Ataman , Tayman Cuneyt , Cakir Ufuk , Koyuncu Ismail , Temiz Ebru , Sert Yasemin
Published: December 2022

Background: Routine screening for hereditary disorders in newborns includes screening for treatable metabolic and endocrine disorders, such as biotidinase deficiency, galactosemia, maple syrup urine disease, hypothyroidism, and cystic fibrosis. Incorrect test results may be encountered due to the use of vitamin K1. To investigate the interference effect of vitamin K1 on neonatal screening tests and to raise awareness of erroneous measurements. Methods: Heel blood samples were taken from 25 newborns born in a neonatal intensive care unit. Dry blood C0, C2, C3, C4, C4DC, C5:1, C5OH, C5DC, C6, C6DC, C8, C8:1, C8DC, C10, C10:1, C10DC, C12, C14, C14:1, C14:2, C16, C16:1, C18, C18:1, C18:2, C18:OH, methylglutaryl, valine, leucine/isoleucine, methionine, phenylalanine, argininosuccinic acid, aspartate, alanine, arginine, citrulline, glycine, ornithine, and glutamate tests were studied using the tandem mass spectrometry (MS) method. The results of the heel blood samples obtained before and after the application of vitamin K1 (Phyto menadione) were compared. Results: In two studies conducted with in vitro and in vivo tests, C0, C2, C3, C4, C4DC, C5, C5OH, C6, C8, C10, C10:1, C14, C16, C16:1, C18, C18:1, methylglutaryl, phenylalanine, argininosuccinic acid, tyrosine, aspartate, arginine, citrulline, glycine, and glutamine were all significantly elevated (p < 0.05). Conclusions: Heel blood samples may yield false results due to vitamin K1 administration. In the case of doubtful results, a new sample should be taken and the measurement should be repeated.
MiRNA-200b level in peripheral blood predicts renal interstitial injury in patients with diabetic nephropathy
Authors: Chen Tingfang , Jiang Zhenzhen , Zhang Haiying , Yang Ruifeng , Wu Yan , Guo Yongping
Published: December 2022

Background: To uncover the diagnostic potential of peripheral blood microRNA-200b (miRNA-200b) in renal interstitial injury in diabetic nephropathy (DN) patients. Methods: A total of 50 diabetes subjects, 50 mild DN subjects, 50 moderate-severe DN subjects and 50 healthy subjects were included. Peripheral blood level of miRNA-200b in every subject was detected by reverse transcriptase-polymerase chain reaction (RT-PCR). Serum levels of renal function indicators were determined by enzyme-linked immunosorbent assay (ELISA). Meanwhile, relative levels of fibrosis damage indicators were examined by chemiluminescent immunoassay. Diagnostic potentials of miRNA200b in diabetes, mild DN and moderate-severe DN were assessed by depicting receiver operating characteristic (ROC) curves. Results: Peripheral blood level of miRNA-200b was higher in DN subjects than diabetes subjects without vascular complications, especially moderate-severe DN patients. Peripheral blood level of miRNA-200b in DN subjects was negatively correlated to relative levels of serum creatinine, urinary nitrogen, cystatin, TGF-b, CIV and PCIII. ROC curves demonstrated diagnostic potentials of miRNA-200b in mild and moderate-severe DN. Conclusions: Peripheral blood level of miRNA-200b is closely linked to the degree of renal interstitial injury in DN patients. MiRNA-200b may be a vital indicator in predicting the development of DN.
Propeller Stress Calculation Using Curved Finite Element
Authors: Ma J. H. , Schnobrich W. C. , Stuber C. B.
Published: December 2022

A finite element displacement model was utilized to predict the elastic behavior of a propeller blade having an arbitrary shape and subjected to prescribed loading. Solid elements in their general form were adapted. The use of curvilinear coordinates in element space provides a practical means for defining complex design surfaces and also provides an expedient method for stress calculations . The curved three-dimensional elements fit readily to a skewed geometry of curved boundary and their application to propeller problems is simple and straight-forward. The performance of the curved solid finite elements has been found to be excellent and the computed results, because of the general nature of the solid elements are assured to converge to the true solution . The high degree of accuracy obtained from a recent analysis of a full size propeller strongly suggests that the current development represents a realistic and reliable approach to the general solution of the propeller stress problem.
Propeller Blade Loading in Non-Uniform Flow
Authors: Blaurock Jorg
Published: December 2022

The results are presented of model measurements of the unsteady forces on one blade of a Propeller behind a single screw merchant ship· During the tests the propeller loading, the number of blades and the drift angle were varied as parameters. Moreover the installation required for the measurements and the method are described.
Structural Considerations in the Design of Propeller Blades
Authors: Vassilopoulos Lyssimachos
Published: December 2022

The state of the art is reviewed for predicting analytically and measuring, in the model or full scale, loads on propeller blades and the resulting stresses and deformations. Examples are next given of the utility of beam theory and the finite element method during the lifting- line and post lifting-surface stages of design, respectively. An economic assessment is finally offered of the various methods that can be used prior to construction to minimize blade failures.
Steady and Time-Dependent Propeller Blade Loading and Stress Analysis
Authors: Tsakonas S. , Jacobs W. R.
Published: December 2022

The unsteady lifting surface theory has been utilized in evaluating the blade loading distribution at all shaft frequencies and the corresponding hydrodynamic forces and moments at multiples of blade frequency (thrust, torque, bearing forces and bending moments) taking into account as realistically as possible the geometry of the propeller and the inflow field stresses are determined by means of beam theory and the finite element technique, although the latter should be considered as a first attempt.
Accountability in nonprofit organisations: the value of integrated reporting for the case of Spain
Authors: Brusca Isabel , Blasco Pilar , Labrador Margarita
Published: December 2022

In nonprofit organisations, a mix of financial and nonfinancial information is necessary to discharge accountability, and with this aim, social accounting emerged some years ago. Integrated reporting has been more recently developed with the aim of reporting the connections and relationships between all the factors that affect an organisation’s ability to create value over time. This paper analyses what integrated reporting can add to accountability and management in nonprofit organisations, considering that it includes performance as well as social and environmental aspects. The paper uses a case study to analyse how integrated social reporting has been implemented in some organisations and what are the particularities that must be considered to develop a model for these organisations. Semi-structured interviews with the responsible of three social organisations have been carried out to find out what improvements integrated reporting can make and what is necessary for their implementation.