bluuebunny/crossref_metadata_2025 huggingface dataset:
Caso Memes Covid y Pandemia Desinformativa
Authors: Rodríguez Rodríguez Maria Camila
Published: December 2023

Los memes son una herramienta de comunicación y divulgación de información que en este momento se encuentra en tendencia cultural. Por lo tanto, en este estudio se busca profundizar no sólo la relevancia de los memes en la actualidad, sino la forma de influencia en que puede ser usado y percibido en época de pandemia COVID-19, de manera puntual en los procesos de vacunación. Se busca profundizar en la relevancia de éste en la actualidad y en los fenómenos sociales, viéndolo desde una perspectiva social y comunicativa que trasciende a discusiones políticas y públicas.
Modelo estratégico de Mercadeo Social con enfoque de valor para organizaciones sin ánimo de lucro.
Authors: Yanquen Mejia Maria Camila
Published: December 2023

El proyecto opción de grado Modelo estratégico de Mercadeo Social con enfoque de valor para organizaciones sin ánimo de lucro. Caso de estudio: Organización Dhefensoras es una investigación interdisciplinar desarrollada desde la comunicación para el cambio social y desde el mercadeo social con  la organización Dhefensoras, ente aliado al Centro de Investigación en artes Tinkuy del Politecnico Grancolombiano, en la Primera Convocatoria de Investigación Creación 2022.
Post ruptivos: De la experiencia de lectura a la creación de contenidos digitales
Authors: Rivera Cardona Daniela , Lara Lara Natalia
Published: December 2023

Post-ruptivos busca configurar una estrategia de promoción de lectura/creación enmarcada en la figura de un laboratorio, la cual pretende aprovechar el interés y habilidades de nosotros como estudiantes en el entorno digital, con el fin de que desarrollemos contenidos llamativos que fortalezcan nuestras habilidades en lectura, escritura y oralidad, con el fin de fomentar la lectura en otros públicos. En este sentido, es una apuesta por la reivindicación del uso que hacemos de las redes sociales, vinculando las prácticas de creación de contenidos digitales y la promoción de la lectura, la escritura y la oralidad.
Cuerpos y territorios sororos, la fuerza de la juntanza: cinco videoperformances
Authors: Fonseca Tovar Jenny
Published: December 2023

Este proyecto busca crear cinco videoperformances realizados de forma colaborativa con el Comité de Mujeres de la Asociación Campesina de Inzá, Tierradentro, en el departamento del Cauca. Estos cinco videoperformance reflejarán los cinco énfasis que direccionan las políticas de dicho comité: Fortalecimiento político organizativo, derechos humanos con énfasis en derechos de las mujeres, empoderamiento femenino, soberanía alimentaria y economía solidaria. La gestación de estas cinco piezas de video será el resultado de una serie de talleres de cuerpo, video, huertas y relato realizados en el territorio donde trabaja el Comité y serán las mujeres que lo integran sus principales protagonistas. Se parte de problematizar cómo transducir el lenguaje de la lucha comunitaria, específicamente del feminismo campesino, al lenguaje de la videoperformance, teniendo en cuenta no solo el producto final como tal sin o también sus modos de producción o proceso de creación, ya que la producción artística y, en especial, la producción audiovisual tienden a ejercer formas jerárquicas y de un en-común que beneficie la lucha contra las políticas de muerte sin caer en prácticas inmediatistas, extractivistas, asistencialistas y jerarquizantes y, por lo tanto, beneficiando una noción de tiempo a largo plazo? ¿Cómo la organización comunitaria del Comité de Mujeres de la ACIT, y sus feminismos campesinos, pueden ser transducidos al proceso de creación de los cinco videoperformances que se propone este proyecto, añadiendo sentidos estéticos y políticos a sus luchas y a su formación comunitaria? unidireccionales que se alejan de formas comunales, reproduciendo formas de poder y opresión capitalistas y patriarcales. ¿Cómo desde las prácticas artísticas y la academia podemos dialogar con los movimientos y/o organizaciones sociales, para la construcciónde un en-común que beneficie la lucha contra las políticas de muerte sin caer en prácticas inmediatistas, extractivistas, asistencialistas y jerarquizantes y, por lo tanto, beneficiando una noción de tiempo a largo plazo? ¿Cómo la organización comunitaria del Comité de Mujeres de la ACIT, y sus feminismos campesinos, pueden ser transducidos al proceso de creación de los cinco videoperformances que se propone este proyecto, añadiendo sentidos estéticos y políticos a sus luchas y a su formación comunitaria?
"Alive Despite All the Odds": Сollective Memory of Cossacks in Social Networks
Authors:   European university at Saint-Petersburg, Kamentsev A. A.
Published: December 2023

The subject of this research is mnemonic practices, i.e. ways of actualizing the past in the collective memory of modern (2010–2020) Cossacks. I chose Cossack communities in social networks for the analysis because they are part of the public sphere and differ from print or official media in their almost complete absence of censorship and freedom of discussion, even on topics excluded from the official public discourse. The main instruments of my research are content and discourse analysis in the methodology of E. Laclau and S. Mouffe. I have found that the most problematic topics for the collective memory of the revived Cossacks are the genocide of the Cossacks and collaboration during World War II. Two narratives of Cossack history – heroic and victimized - coexist in the heterogeneous Cossack community. Often, both versions of the Cossack past are instrumentalized by the same actor for the political needs of the current moment.
The Transformation of Family Memory in the Modern Chechen Republic
Authors:   The Kh. Ibragimov Complex Institute of the Russian Academy of Sciences, Osmaev A. D.
Published: December 2023

Family memory is closely linked to historical memory, and they complement each other. In addition, Chechen family and historical memory are linked with taipa/clan memory, the need to know the names of at least seven ancestors on the paternal line, and maternal kinship is strictly maintained. As a result of the crisis, very few written sources have survived, and most often memory has been preserved and transmitted in the form of oral traditions. Nowadays, there is a practice of writing family/tape histories, revival of mountain villages, ancestral towers. Nowadays, modern gadgets and means of communication are widely used by new generations. Chechen family memory has much in common with other peoples, but it also has its own peculiarities due to the broad kinship system, the large part of the population living in villages, and the loss of written sources and photographs.
"Flinders from Narration" and Oral Testimonies: Role of Interviews in the "Siege Book" by A. M. Adamovich and D. A. Granin
Authors:   European university at Saint-Petersburg, Pavlovskaya A. Yu.
Published: December 2023

The article examines the corpus of interviews collected by D. A. Granin and A. M. Adamovich during the writing process of "The Siege Book", one of the crucial texts on the Siege of Leningrad. The author analyzes the writers' working materials and transcripts of interviews in order to reconstruct the process of collecting oral testimonies about the siege of Leningrad, to demonstrate how the process of communication with witnesses gradually changed the original idea of the book. The article attempts to put the process of interviewing in the context of the documentary turn in the Soviet culture of the 1970s. The text analyses the internal hierarchy of testimonies and documents that arose in the process of working on the Book of the Siege, as well.
Effect of root imbibition with selenium and iodine on antioxidant compounds in tomato (Solanum lycopersicum L.) crop
Authors: MEJÍA-RAMÍREZ Fernando , PÉREZ-LEÓN Maria I. , BENAVIDES-MENDOZA Adalberto , GONZÁLEZ-MORALES Susana , JUÁREZ-MALDONADO Antonio , MORALES-DÍAZ América Berenice , LARA-VIVEROS Francisco M. , MORELOS-MORENO Álvaro
Published: December 2023

The use of trace elements such as iodine and selenium in agriculture is gaining great importance due to the benefits in plants before different types of biotic or abiotic stress. This research aimed to evaluate the seedling root priming with Na2SeO3 (0, 0,5, 1, 2, 3 mg L-1) and KIO3 (0, 100, 150, 200, 250 mg L-1) on the antioxidant compounds of tomato (Solanum lycopersicum L.) fruits and leaves. The crop was established under greenhouse conditions in 10-L polyethylene containers containing peat moss and perlite 1:1 (v/v), in a randomized complete block experimental design with a 52 factorial arrangement. In the fruits, the Na2SeO3 influenced the GHS, flavonoids, lycopene and β-carotene contents, while the KIO3 influenced the GHS, vitamin C and lycopene contents. The KIO3-Na2SeO3 interactions affected the GSH, phenols, flavonoids, lycopene and β-carotene contents in fruits. In the leaves the GHS content increased with the Na2SeO3, while the GSH, flavonoids, and chlorophyll contents increased with the KIO3 factor and KIO3-Na2SeO3 interactions. The evaluated enzymes in fruits and leaves decreased with the both the KIO3 and Na2SeO3 concentrations. The Na2SeO3 influenced the hydrophilic compounds by ABTS and DPPH, while the KIO3 influenced the hydrophilic compounds by ABTS. In the leaves, the KIO3 influenced the lipophilic compounds by ABTS. The KIO3-Na2SeO3 interactions influenced the hydrophilic compounds by ABTS in both the fruits and leaves. Seedling root imbibition in KIO3 and Na2SeO3 is a method that implemented in the tomato crop presents interesting aspects in the increase of the antioxidant capacity and the non-enzymatic compounds, such as vitamin C, phenols, flavonoids and GSH contents. However, this method presented an inhibition in the antioxidant enzymes.
Worldwide cotton production and trade during COVID-19 pandemic: An empirical analysis for a three-year observation
Authors: ERKENCIOGLU Bedriye N. , ZUHAL Mustafa , TOKEL Dilek , OZYIGIT Ibrahim I.
Published: December 2023

The COVID-19 pandemic has posed a significant impact on agriculture. Due to its importance in world trade and human life, the effects of the pandemic on the cotton economy were evaluated by using the data of important organizations such as the U.S. Department of Agriculture, the World Trade Organization, and International Cotton Advisory Committee in this study. With the Chow test, which measures of structural breaks, the effects of COVID-19 on cotton production and trade were examined. According to the Chow test results, the pandemic had no significant effect on cotton production, exports and imports in the People’s Republic of China and Türkiye, while being highly influential on cotton production and exports in the U.S. and Brazil. Distinctively, in Pakistan, it had a significant impact on cotton production and import. It was observed that although the demand, trade and prices for cotton were descended, the cotton prices started to recover with the increase in demand in the third quarter of 2020. In June 2022, the highest peak in cotton prices was observed. As a conclusion, it is shown that cotton production and trade during the pandemic were affected in all countries except People’s Republic of China and Türkiye. However, the marks of the effects of factors such as decreasing stocks, uncertainties in national economies, high inflation and increase in production costs on the cotton economy will be better understood in the coming years.
The role of endophytes and rhizobacteria to combat drought stress in wheat
Authors: MUKHTIAR Asif , LIHONG Wang , MAHMOOD Athar , AMEEN Muaz , ZIA Muhammad Anjum , ARSHAD Tahreem , NAQVE Maria , WAHAB Hafiz A. , RASHEED Adnan , ASGHAR Saima , ZAFAR Asma , HASSAN Muhammad U.
Published: December 2023

Wheat production suffers greatly from drought stress, resulting in yield losses. Endophytes and rhizobacteria have been recognized as a valuable source in mitigating of drought stress by improving plant resistance and growth. In this review, we discuss how endophytes and rhizobacteria help wheat cope with drought stress. During drought stress, endophytes have been found to increase plant water usage efficiency and decrease water loss. Endophytes are harmless microorganisms that live inside plant tissues. Rhizobacteria establish colonies in the root system through various procedures, including phytohormones production, modification of root architecture, and activation of stress-inducible genes, thereby promoting plant growth and enhancing stress resistance. Numerous studies have shown how endophytes and rhizobacteria can improve the potential of wheat to withstand drought. For instance, inoculation with endophytes like Piriformospora indica and Bacillus spp. has been proven to enhance wheat plant yield and drought resistance. Similarly, it has been proven that rhizobacteria like Pseudomonas spp. and Azospirillum brasilense enhance drought tolerance through a variety of mechanisms. To minimize the consequence of wheat under drought conditions, the efficient method is the use of endophytes and rhizobacteria as biofertilizers, which could ultimately boost yields and sustainability. More research needs to be done so that it can be used most effectively in the field and so that we can better understand how they work. We explained current understanding of the role and mechanisms of endophytes and rhizobacteria in minimizing drought stress effects in wheat. Additionally, we highlighted areas of limited knowledge and suggested directions for future research. This review will provide the new suggestion on the role of endophytes and rhizobacteria in mitigating the drought stress in plants.
Impact of biostimulants based amino acids and irrigation frequency on agro-physiological characteristics and productivity of broccoli plants
Authors: EL-BELTAGI Hossam S. , ABUARAB Mohamed E. , FAHMY Mahmoud A.M. , ABDELAZIZ Suzy M. , ABDEL-HAKIM Sara G. , ABDELDAYM Emad A. , TAWFIC Ghada A.
Published: December 2023

Abstract scientists are concerned about the utilizing of biostimulants-based amino acids in plant feeding and mitigating negative effects of water stress. As a result, two-year field experiments were conducted at Faculty of Agriculture's experimental station at Cairo University to study the effectiveness of liquid yeast waste (CMS) and Cargo amino acids (AAs) on the agro-physiological features of broccoli plants with different irrigation frequencies (every 5, 10, and 15 days). Compared with control plants, the foliar application of AAs and CMS significantly increased plant height, photosynthesis pigments, head weight, head diameter, head height, plant yield, and quality at different irrigation frequencies. Likewise, both treatments (CMS and AAs) significantly improved ascorbic acids by 16.65% and 15.95% and increased total phenol content by 24.10% and 36.60%, respectively, compared to control plants. Accordingly, the highest productivity was achieved for broccoli grown under irrigation every five days with the CMS bio-stimulant, where it was 3111.17 kg ha-1, while the lowest productivity was achieved for the control treatment in which no biostimulants were added and irrigation frequency every 15 days, and the productivity was 1376.22 kg ha-1. Plants irrigated every 15 days produced the highest levels of abscisic acid (ABA) and superoxide dismutase (SOD), followed by plants irrigated every 10 days and every 5 days. Exogenous application of amino acids bio-stimulants could be suggested to improve vegetative growth, biochemical characteristics, productivity, and nutritional value as well as to mitigate negative effects of water scarcity.
Ortaokul Bilişim Teknolojileri Öğretim Programının Metaverse Kavramı Bağlamında Değerlendirilmesi
Authors: SIRKINTI Merve , BOLAT Yavuz
Published: December 2023

Gelişen bilgi ve iletişim teknolojileri, gün geçtikçe artan bir öneme sahip olup hayatın her köşesinde kendini gösteren yeni ve etkileyici teknolojik dönüşümlerle birlikte ilerlemektedir. Bu teknolojilerden birisi olan metaverse teknolojisinin eğitim alanında da çeşitli uygulamaları görülmektedir. Öteki evren anlamına gelen metaverse teknolojisi, sanal ve gerçek hayat arasındaki ayrımları silikleştirerek günümüzde interneti aşan bir konumda bulunmaktadır. Her geçen gün popülerleşen ve eğitim dâhil pek çok alanda kullanımına rastlanan metaverse kavramı henüz herkesçe tam olarak anlaşılabilmiş değildir. Bu sebeple metaverse ile ilgili yapılacak olan araştırmalar, bu teknolojinin ne olduğu ve ne işe yaradığına açıklık getirmekle beraber literatüre de önemli bir katkı sağlamış olacaktır. Araştırma, ortaokul 5. ve 6. sınıflarda öğretimi yapılan Bilişim Teknolojileri ve Yazılım (BTY) dersine ait öğretim programlarının içerisinde yer alan kazanımların, metaverse teknolojisinin bileşenleri olan; sanal ve gerçek hayatın sentezi olma, internet üzerinden erişilebilir olma, iş birliği sağlama ve kesintisiz kullanıma uygun kapasitede olma bileşenlerine uygunluğu bağlamında değerlendirilmesi amacı ile yapılmıştır. Araştırmada nitel araştırma türlerinden doküman analizi yöntemi ile 5. sınıflara yönelik 75, 6. sınıflara yönelik 77 olmak üzere toplam 152 kazanım irdelenmiştir. Her bir kazanım metaverse teknolojisinin dört bileşeni kapsamında ele alınmış ve uygunluk durumları tablolaştırılarak bulgular bölümünde sunulmuştur. Verilerin analizi neticesinde BTY dersi 5. sınıf kazanımlarının çoğunluğunun metaverse teknolojisine uygun olmadığı, 6. sınıf kazanımlarının ise uygun olduğu sonuçlarına ulaşılmıştır. Araştırmanın sonucunda, ortaokul 5. ve 6. sınıf BTY dersi öğretim programlarının metaverse bileşenleri kapsamında yeniden ele alınması, öğretmenlere eğitim alanında etkisi giderek artan metaverse teknolojisini derslerinde daha aktif kullanmalarına yönelik hizmet içi eğitimler verilmesi gibi çeşitli önerilerde bulunulmuştur.
Adherence to the EAT-Lancet diet and its relation with food insecurity and income in a Brazilian population-based sample
Authors: Ferreira Mariana Alves , Silva Alexsandro Macedo , Marchioni Dirce Maria Lobo , Carli Eduardo De
Published: December 2023

Abstract: This study aimed to investigate the relation of adherence to the planetary diet with food and nutrition security status and per capita household income in a study with a representative sample of the Brazilian population. Among the data from the 2017-2018 Brazilian Household Budgets Survey (POF), the inequality indicators selected for the analysis were data on per capita household income and food and nutrition security. We also considered data on the individual food consumption of 46,164 Brazilians aged ≥ 10 years, obtained through 24-hour dietary recalls, in the National Food Survey, conducted with the POF 2017-2018. The Planetary Health Diet Index (PHDI) was used to measure adherence to the planetary diet. Sociodemographic data were expressed as frequency (%), with analysis of the mean and 95% confidence interval (95%CI) of the PHDI score. The relation of food and nutrition security and income with the PHDI score was tested in multiple linear regression models. The calculations were performed in the Stata software, adopting a 5% significance. Lower PHDI means were observed among food insecure individuals, male, < 20 years old, mixed-race and indigenous, with income < 0.5 minimum wage, residing in rural areas and in the North and Northeast regions. In the multiple linear regression, food insecurity was inversely related to PHDI score (ꞵ = -0.56; 95%CI: -1.06; -0.06), with the lowest scores associated with severe food insecurity (β = -1.31; 95%CI: -2.19; -0.55). Income categories were not independently associated to PHDI score (p-trend = 0.900). Therefore, food insecurity has been shown to negatively affect Brazilians’ adherence to the planetary diet.
Health and economic burden of sugar-sweetened beverages consumption in Brazil
Authors: Perelli Lucas , Alcaraz Andrea , Vianna Cid Manso de Mello , Espinola Natalia , Cairoli Federico Rodriguez , Bardach Ariel , Palacios Alfredo , Balan Dario , Johns Paula , Augustovski Federico , Pichón-Rivière Andrés
Published: December 2023

Abstract: Sugar-sweetened beverages (SSBs) are a major source of added sugar and are associated with noncommunicable diseases (NCDs) such as obesity and diabetes. This study assessed the impact of SSBs consumption on disease burden in Brazil, including deaths, disability-adjusted life years (DALYs), and healthcare costs. A 3-stage methodology was used to assess the direct effects of SSBs on diabetes, cardiovascular diseases, and body mass index (BMI), along with the influence of BMI on disease incidence. These assessments were then used to estimate the economic and health burden using population-attributable factors. Results showed that 2.7% and 11% of adult and children overweight/obesity cases were attributable to SSBs, respectively. SSBs consumption in Brazil led to 1,814,486 cases, 12,942 deaths, 362,088 DALYs, and USD 2,915.91 million in medical costs related to diabetes, cardiovascular diseases, oncological diseases, and other NCDs. Urgent implementation of public policies is crucial to address the consumption of SSBs, recognized as a key risk factor for NCDs.
Pesquisa social em saúde: por que ler Norbert Elias?
Authors: Magalhães Rosana
Published: December 2023

Resumo: Este ensaio busca refletir sobre os desafios teórico-metodológicos do campo da pesquisa social em saúde e, especialmente, explorar a matriz conceitual presente na obra de Norbert Elias, sociólogo e historiador cuja abordagem sobre o processo civilizador contribui substancialmente para a compreensão das singularidades que conformam a existência individual e coletiva. Investigando longas cadeias de interdependência no decorrer da história, Elias desafiou interpretações deterministas sobre os processos sociais e construiu análises expressivas sobre uma pluralidade de objetos em perspectiva interdisciplinar, construtivista e relacional. Ao iluminar a dinâmica de interação e constituição mútua dos indivíduos e da sociedade, o autor redefine a natureza das relações recíprocas entre as estruturas sociais, a economia psíquica e o corpo. Nesse sentido, a apropriação dessa postura reflexiva pode originar estudos e processos de investigação. Considerando a complexidade da Saúde Coletiva, propõe-se, assim, estimular possíveis articulações, diálogos e usos do referencial teórico eliasiano na problematização e construção de estratégias e caminhos de pesquisa.
Oral cancer over six decades: a multivariable analysis of a clinicopathologic retrospective study
Authors: Daroit Natália Batista , Martins Lucas Nunes , Garcia Alan Ballardin , Haas Alex Nogueira , Maito Fábio Luiz Dal Moro , Rados Pantelis Varvaki
Published: December 2023

Abstract Studies have reported changes in the epidemiological profile of patients with oral cancer in recent decades, especially regarding gender and age. This study aimed to evaluate a historical series of oral malignant lesions prevalence over six decades and define characteristics associated with the occurrence, mainly, of oral squamous cell carcinoma (OSCC). A retrospective review of histopathological records from 1953 to 2019 was conducted in three oral pathology laboratories in South Brazil about age, sex, anatomical site, clinical aspect, and histopathological diagnosis. Descriptive and analytical analyses were performed comparing the histopathological diagnoses with other variables. Multivariable logistic regression was applied to determine the associated predictors of OSCC. Of the 53,065 records available in the institutions, 986 were oral malignant tumors (including all malignant neoplasms), representing 1.86% of all diagnoses. The occurrence of OSCC in the 1960's was 80.0%, decreasing over time reaching the lowest percentage of cases in the 1990's (75.8%) and significantly increasing to 88.7% in the 2010s. Females had a lower chance than males of having OSCC independently of the decade (odds ratio=0.30, p<0.001). This was the same for older individuals compared to those younger than 40 years. No interactions between sex, age, and decade were observed. The number of diagnoses of oral malignant lesions increased over time, and the occurrence of OSCC varied. Older individuals and males had higher chances of having OSCC independently of the decade. Therefore, in this study sample, no changes were observed in the epidemiological profile over the years concerning these predictors.
Unvaccinated periodontal patients with a history of COVID-19: clinical findings in a Dental School setting
Authors: Roza Vanessa B. , Brasil Sabrina C. , Mello Luiza F. , Silva-Boghossian Carina M.
Published: December 2023

Abstract This study analyzed the periodontal clinical data of individuals with a history of COVID-19 treated in a dental school during the pandemic in 2021 before vaccination. Methods: This analysis included individuals older than 18 years with no history of systemic disorders other than systemic arterial hypertension. Individuals who had COVID-19 were classified according to the World Health Organization as asymptomatic, with mild, moderate, severe, or critical symptoms. Results: A total of 95 individuals were evaluated, which included 24 with a history of COVID-19. Seventeen percent had been asymptomatic, 21% had mild, 25% moderate, 21% severe, and 17% critical symptoms, including intubation. Individuals with no history of COVID-19 presented significantly lower measurements of probing depth (p=0.003; Mann-Whitney test) and clinical attachment level (p=0.002) compared to individuals with a history of COVID-19. A significant negative association was found between bleeding on probing and the severity of characteristics of COVID-19 (rho= -0.233; p=0.023). Conversely, positive associations between the values of probing depth (rho= 0.292; p=0.004) and mean clinical attachment level (rho= 0.300; p=0.003) and the characteristics of COVID-19 were found. Conclusions: The periodontal data shows that patients who had COVID-19 before vaccination may present a worse periodontal status when compared to patients in the same clinical setting with no history of COVID-19. However, a more extensive study should confirm it with more participants.
Clinical and socio-demographic factors associated with dental extractions in a clinical sample
Authors: Bernal-Sánchez Karla Karen , Lara-Carrillo Edith , Velázquez-Enriquez Ulises , Casanova-Rosado Juan Fernando , Casanova-Rosado Alejandro José , Morales-Valenzuela Adriana Alejandra , Márquez-Rodríguez Sonia , Medina-Solís Carlo Eduardo , Maupomé Gerardo
Published: December 2023

Abstract The objective of the present study was to identify the reasons for dental extractions in patients seeking dental care in a university dental clinic in Mexico. This is a cross-sectional study that assessed 284 consecutive patients at the School of Dentistry, Autonomous University of the State of Mexico between August 2017 and November 2018. In total, 505 extractions were performed. The dependent variable was the reason for extraction: 0) dental caries and ensuing sequels (reference category); 1) periodontal disease and ensuing sequels; and 2) other reasons. Sociodemographic, socioeconomic, and clinical variables were included as independent variables. The analysis was done with multinomial logistic regression (Stata 14.0). Out of all extractions, 63.6% (n=321) were due to dental caries and ensuing sequels; 22.0% (n=111) were due to periodontal disease and ensuing sequels; 5.3% (n=27) endodontic failure; 5.1% (n=26) prosthetic indications; 1.6% (n=8) orthodontic indications; and the rest (2.4%) were due to other reasons. In the multivariate model extractions due to periodontal disease vs dental caries were associated with occasionally smoking tobacco (Odds Ratio, OR=3.90) or daily tobacco use (OR=3.19); the tooth to be extracted having been previously restored (OR=2.35); extracted anterior as opposed to posterior teeth (OR =2.63); and patients with multiple extractions (OR=2.68). In the case of extractions due to “other reasons”, no variable was significant. Dental caries and periodontal disease were the main reasons for dental extraction in this sample. Several variables, mostly clinical, were associated with extractions for periodontal reasons.
Influence of sealer type on treatment outcome of teeth with apical periodontitis: a systematic review
Authors: Amoroso-Silva Pablo , Brasil Sabrina C. , Pérez Alejandro R. , Tolentino Elen S. , Alves Flávio R. F. , Siqueira Jr José F. , Rôças Isabela N.
Published: December 2023

Abstract The purpose of this article was to Evaluate the influence of sealer on the outcome of non-surgical endodontic treatment or retreatment of permanent teeth with apical periodontitis (PROSPERO registration: CRD42020205951). Methodology: A systematic review of original clinical studies was carried out following PRISMA guidelines to answer whether the type of sealer used in endodontic treatment or retreatment influences the repair of apical periodontitis determined by clinical and radiographic parameters. Electronic searches were performed in PubMed, Embase, Web of Science, Scopus, and the Cochrane Library database, until May 2023. Gray literature and a hand search of reference lists were also performed. The risk of bias was assessed using Cochrane RoB2 for randomized trials and the Newcastle-Ottawa Scale (NOS) for prospective and retrospective cohort and case-control studies. Results: Among 1046 studies, a total of 819 were selected by title and abstract, resulting in 23 for full-text review. In total, 11 studies met the inclusion criteria (1467 patients/teeth with apical periodontitis). The quality assessment using RoB2 included five randomized control trials, of which four had medium risk and one had a low risk of bias. According to the NOS scale, five studies were classified as low risk and one study was considered as medium risk of bias. The sealer type and obturation techniques varied, and the mean follow-up time was 3.7 years. Most studies used two-dimensional radiographic criteria to assess the treatment outcome sealers and not cements. Eight studies did not find significant differences when comparing cements. The healing rates ranged from 56.7% to 90%. Conclusions: The results of this review support that the current endodontic sealers do not seem to influence the treatment outcome of permanent teeth with apical periodontitis. Although the studies had medium and low risk of bias, the results should be interpreted with caution. More randomized studies of long-term outcomes comparing filling materials are needed to strengthen this claim and allow for a meta-analysis.
Effect of Endo-Z bur or Bladesonic ultrasonic tip on the adaptation of filling material. A micro-CT study
Authors: Souza Pedro Henrique Fiorin de , Oliveira Santos-Junior Airton , Pinto Jáder Camilo , Tavares Karina Ines Medina Carita , Guerreiro-Tanomaru Juliane Maria , Tanomaru-Filho Mário
Published: December 2023

Abstract This study aimed to evaluate the effect of apicoectomy performed with a bur or an ultrasonic tip on the adaptation of the filling material to root canal dentin. Twenty human mandibular incisors were selected and prepared with a ProDesign Logic system up to diameter 40/.05. The root canals were filled with Bio-C Sealer (Angelus, PR, Brazil) using the single cone technique and were stored at 37ºC and 95% relative humidity for 7 days. After this period, the apicoectomy of the 3 millimeters of the root apex was performed using Endo-Z bur (Dentsply Sirona) or Bladesonic ultrasonic tip (Helse Ultrasonic, Santa Rosa de Viterbo, Brazil) (n=10). The specimens were scanned by micro-computed tomography (micro-CT; SkyScan 1176) with a voxel size of 8.74 µm after obturation and after apicoectomy. The percentage of voids at the interface between the filling material and the root canal wall was evaluated in the apical 4 mm of the root after apicoectomy, besides the time cutting to both devices. The data obtained were submitted to paired and unpaired t-tests (α = 0.05). Endo-Z and Bladesonic increased the percentage of voids between the filling material and the dentin after apicectomy (p<0.05), and they were similar (p>0.05). Endo-Z has a shorter time to perform apicoectomy compared to Bladesonic (p<0.05). Apicectomies with Endo-Z or Bladesonic could harm the material/dentin interface, while the Endo-Z bur was faster than the Bladesonic ultrasonic tip.
Genetic polymorphism of interleukins 6 and 17 correlated with apical periodontitis: A Cross-sectional study
Authors: Santos Rebeka Thiara Nascimento dos , Lima Luísa Priscilla Oliveira de , Muniz Maria Tereza Cartaxo , Álvares Pâmella Recco , Silveira Márcia Maria Fonseca da , Sobral Ana Paula Veras
Published: December 2023

Abstract Interleukins 6 and 17 act in bone resorption in the presence of infections of endodontic origin for host defense. Genetic polymorphisms may be associated with increased bone loss, represented by areas of large periapical lesions. This study aimed to verify the frequency of interleukin 6 and 17 gene polymorphism in patients with asymptomatic apical periodontitis or chronic apical abscess and to verify the existence of correlations between periapical lesion area with age, gender, and presence of the polymorphism, in the studied population, in the state of Pernambuco. A population consisting of thirty diagnosed individuals was included. The area of the lesions was measured in mm². Genomic DNA was extracted and genotyping was performed by Polymerase Chain Reaction Restriction Fragment Length Polymorphism for interleukin 6 (rs 1800795) and interleukin 17 (rs 2275913). Fisher's exact, chi-square, and odds ratio tests were used. A logistic regression analysis was also performed using sex, age, and the presence of polymorphism as covariates, in addition to linear regression to test the relationship between age and lesion area. All tests used a significance level of 0.05% (p ≤0.05%). There was no statistical significance in the occurrence of large areas of periapical lesions correlated with age, sex, and diagnosis, nor in the distribution of alleles in the polymorphism of interleukins 6 and 17 in the studied groups. The frequency of homozygous and heterozygous polymorphism was high. The polymorphism of these interleukins is not correlated with the increase in the areas of asymptomatic periapical inflammatory lesions.
Is there an effective way to control pain perception after free gingival graft removal? A systematic review and meta-analysis
Authors: Ameida Flavio X , Cotrim Khalila C , Kalil Eduardo C , Bechara Karen , Dalla Renan , Rovai Emanuel S , Shibli Jamil A , Santos Nidia C Castro dos
Published: December 2023

Abstract The literature describes multiple ways to stimulate wound healing to reduce the patient's perception of pain. This systematic review aimed to evaluate if methods that enhance wound healing can reduce the patient’s perception of pain after free gingival graft removal from the palate region compared to natural healing. A systematic review protocol was written following the PRISMA checklist. Electronic searches of five databases were performed to identify randomized clinical trials (RCTs) that assessed the patient’s perception of pain after the removal of a free gingival graft from the palate. The primary outcome was the visual analog scale (VAS) score assessing the patient’s perception of pain 7 days after the free gingival graft removal from the palate region. Of the 1,622 potentially relevant articles retrieved from the electronic databases, 16 RCTs were selected for qualitative analysis, and of these, 6 RCTs were included in the meta-analysis. RCTs showed a significant VAS reduction associated with the use of methods to enhance wound healing. The pooled estimates revealed a significant overall VAS reduction of 2.20 (95% CI 2.32, 2.07) 7 days after surgery. The methods that presented the greatest reduction in the perception of pain were platelet-rich fibrin, hyaluronic acid, and autologous fibrin glue. Methods that enhance wound healing, including platelet-rich fibrin, hyaluronic acid, and autologous fibrin glue, can reduce pain perception after free gingival graft removal in the palate region. However, only 1 RCT investigated each approach, which hinders the conclusion regarding the best procedure to reduce the perception of pain.
Halitosis and Pain Threshold of Peri-Implant Tissues: An Observational Cohort Study
Authors: Souza João Paulo do Vale , Romero Giovana Dornelas Azevedo , Melo Neto Clóvis Lamartine de Moraes , Piacenza Lucas Tavares , Monteiro Renata Vasconcelos , Silva Emily Vivianne Freitas da , Santos Daniela Micheline dos , Goiato Marcelo Coelho
Published: December 2023

Abstract In this study, we aimed to evaluate the halitosis and pain threshold of the peri-implant soft tissues in individuals rehabilitated with implant-supported prostheses. Forty-eight subjects were divided into four groups (n = 12) according to their prosthetic rehabilitation: single-tooth fixed prosthesis, multi-tooth fixed prosthesis, overdentures, and the Brånemark protocol. Halitosis was measured using a halimeter, whereas the pain threshold was measured using Von Frey monofilaments. Measurements were taken before (t0) and 30 days after (t1) placement of healing caps, and at the time of (t2) and 30 days after (t3) prosthetic placement. Halitosis data were analyzed using the chi-square test and Bonferroni correction (p < 0.05). Two-way ANOVA and Tukey’s test (p < 0.05) were used to analyze pain threshold data. We noted an association between halitosis and time for the Brånemark protocol [X2(6) = 18.471; p = 0.005] and overdenture groups [X2(6) = 17.732; p = 0.007], and between halitosis and type of prosthesis only at t0 [X2(6) = 12.894; p = 0.045]. The interaction between time and the type of prosthesis significantly interfered with the mean pain threshold values (p = 0.001). At most time points, the majority of participants in each group had clinically unacceptable halitosis. After 30 days of using the prostheses, the overdenture group had a lower pain threshold compared to the Brånemark protocol group.
Biomechanical behavior of different designs of hybrid abutment-restoration on the posterior crown: a finite element analysis
Authors: Rocha Adna Alves , Carvalho Marco Aurélio de , Bordin Dimorvan , Cury Altair Antoninha Del Bel , Lazari-Carvalho Priscilla Cardoso
Published: December 2023

Abstract This study aimed to evaluate the influence of material and crown design on the biomechanical behavior of implant-supported crowns with hybrid abutment (HA) through three-dimensional (3D) finite element analysis. The study factors were the type of material used as the mesostructure or crown (zirconia, lithium disilicate, and hybrid ceramic) and the crown design cemented to the titanium base (mesostructure cemented to the titanium base and a crown cemented on it (HaC); hybrid crown-abutment, the abutment and crown are manufactured as a single piece and cemented to the titanium base (HC); monolithic crown cemented on the titanium base and screwed to the implant (CS); and monolithic crown cemented on the titanium base (CC). Four 3D models were constructed using an implant with an internal connection, and an oblique load of 130 N was applied at 45° to the long axis of the implant. The models were evaluated using the von Mises stress for crown, abutment, screw, and implant and maximum principal stress for bone tissues. The lowest stresses occurred in the groups with a lower elastic modulus material, mainly hybrid ceramics, considered a material with greater resilience. The cemented crown group presented the lowest stress values. The stresses were concentrated in the cervical region of the crown at the titanium crown/base interface. Mesostructures made of materials with a higher elastic modulus exhibited a higher concentration of stress. The presence of a screw hole increased the stress concentration in the ceramic crown. Cemented ceramic crowns exhibited better biomechanical behavior than screw-retained crowns.
Avaliação preliminar da influência do cobre oriundo de sucata reprocessada na microestrutura, dureza e resistência à compressão do zamac 5
Authors: Prado Jefferson Morais do , Kunst Sandra Raquel , Soares Luana Góes , Schneider Eduardo Luís , Oliveira Cláudia Trindade , Fuhr Luciane Taís
Published: December 2023

RESUMO Zamac é uma liga metálica composta de zinco, alumínio, magnésio e cobre. Suas propriedades de processamento, como baixo ponto de fusão e alta fluidez a quente faz com que a indústria reprocesse o refugo da produção de zamac sem enviá-lo a uma usina para refino, podendo ocasionar diferenças de composição química na liga original e consequentemente nas suas propriedades mecânicas e microestruturais. Este trabalho visa avaliar as variações oriundas do reprocessamento de zamac 5 na forma de sucata contendo eletrodeposição de cobre alcalino quanto à microestrutura e às propriedades mecânicas. As amostras reprocessadas foram comparadas com amostras de zamac 5 como recebidas e analisadas por meio de ensaios de dureza, resistência à compressão, microestrutura por microscopia eletrônica de varredura e de composição química por EDS. Os resultados de ensaio de resistência à compressão e composição química mostram que houve a formação de uma liga nova, com aumento da concentração de aproximadamente 4% de cobre, muito semelhante à liga ternária Zn-15Al-4Cu. Embora essa liga nova tenha apresentado resultados de dureza alta e resistência à compressão relativamente baixa, preliminarmente, pode-se dizer que é adequada para fabricação de peças que não recebem esforços compressivos significativos, como enfeites para roupas, bolsas, calçados e acessórios.
Estudo preliminar do processo de anodização de alumínio com licor pirolenhoso em modos galvanostático e potenciostático pela técnica de Hard Anodization
Authors: Amaral Ramon do , Kunst Sandra Raquel , Soares Luana Góes , Schneider Eduardo Luis , Moura Ângela Beatrice Dewes , Oliveira Cláudia Trindade , Führ Luciane Taís
Published: December 2023

RESUMO A técnica de Hard Anodization foi desenvolvida para otimizar o processo de anodização porosa de alumínio, gerando altas taxas de anodização, com crescimento acelerado e organizado da camada de óxido aliando altas tensões aplicadas no processo com eletrólitos em baixa temperatura. Já o licor pirolenhoso é um produto conhecido no meio agrícola, sendo uma mistura de compostos orgânicos líquidos derivados da condensação da fumaça da produção de carvão vegetal. Assim, o objetivo deste estudo é avaliar a viabilidade técnica do uso do licor pirolenhoso como eletrólito de anodização para alumínio por meio de Hard Anodization. Foram definidos os parâmetros de anodização (tempo, temperatura, tensão e densidade de corrente) adequados a Hard Anodization, em eletrólito de licor pirolenhoso e comparado ao ácido acético 1%. Os testes eletroquímicos foram conduzidos em modo galvanostático e potenciostático. As amostras foram avaliadas morfologicamente, por meio de microscopia eletrônica de varredura (MEV) e microscopia ótica, e por suas características de molhabilidade. Os resultados mostraram que o licor pirolenhoso é capaz de anodizar alumínio, em baixas velocidades de crescimento de óxido, e que o melhor modo de anodização foi o galvanostático. Nas condições de processo utilizadas, o ácido acético comportou-se como eletrólito de eletropolimento para o alumínio.
Structural analysis modeling of participatory stakeholder management for green space improvement: evidence from Tehran Metropolis
Authors: Daneshyar H. , Mirdamadi S. M. , Niknami M. , Lashgarara F.
Published: December 2023

Abstract Encouraging stakeholder participation is now considered an appropriate approach to green space improvement. The main question is how to have people participate in the improvement process. This study aims to propose a participatory stakeholder management model of green space improvement in Tehran Metropolis. Therefore, 190 of Tehran Municipality’s green space experts were selected as the statistical population for in-person and field interviews. The dependent research variable was defined as the green space improvement measured in four dimensions (i.e., green space planning, green space designing, green space implementation, and green space maintenance). However, the independent variable included the aspects of participatory management (i.e., participation in goal-setting, participation in decision-making, participation in organizational change, participation in problem-solving, and organizational culture). The results indicated that only organizational culture and participation in organizational change explained nearly 96% of participatory management variations and improved 67% of the green space.
Dynamic capabilities and sustainability-oriented innovations in higher education institutions: a case study
Authors: Gohr Cláudia Fabiana , Torres Carlos Rodrigo de Souza , Lira Walleci Gabeu
Published: December 2023

Abstract This paper aims to analyze the Dynamic Capabilities (DC) from their micro-foundations (sensing, seizing, and reconfiguration) that help in sustainability-oriented innovation (SOI) activities (organizational optimization, organizational transformation, and systems building) and that lead to the development of innovations in the context of higher education institutions (HEIs). This research has a descriptive and exploratory nature, developed through a case study in an HEI located in the northeast region of Brazil. The study was based on interviews with key sustainability managers within the institution and on research of institutional documents related to the subject. As a result, the existence of specific sensing, seizing, and reconfiguring microfoundations for HEIs that can enable SOI in the three levels of activities studied was verified, highlighting important relationships between them. This work contributes to the advancement of knowledge about SOI activities in HEIs by identifying the microfoundations that drive such activities and addressing a gap in studies on microfoundations of SOI dynamic capabilities and activities in higher education institutions. In practical terms, this article can serve as a basis for HEIs managers to understand what they need to do to drive SOI activities, especially in building systems for the development of innovations with social and economic impact for territories beyond institutional boundaries.
Diazotrophic bacteria increase yield and profitability in organic cultivation of common bean
Authors: Martins Juliana T. , Buzo Fernando de S. , Garé Lucas M. , Garcia Nayara F. S. , Sales Letícia Z. de S. , Nascimento Matheus V. L. do , Santos Neli C. B. dos , Sabbag Omar J. , Arf Orivaldo
Published: December 2023

ABSTRACT The symbiosis of common beans with nitrogen-fixing bacteria provides an efficient approach to sustainable and economical food production. Therefore, this study aimed to evaluate the application of cost-effective nitrogen management strategies in organic common bean cultivation, including the application of poultry manure and organic liquid fertilizer, seed and co-inoculation with diazotrophic bacteria (Azospirillum brasilense and/or Rhizobium tropici), and supplementary Rhizobium tropici inoculation. The study spanned three years in a well-established organic cultivation field (2018) and an initial organic cultivation area (2019 and 2020) in Brazil. It was arranged in a randomized blocks design in a 2 × 5 (2018) and 2 × 6 (2019 and 2020) factorial scheme, with four replicates. The most profitable strategy involves seed inoculation with Azospirillum brasilense and additional inoculation with Rhizobium tropici at stage V4-5 (fifth trifoliate leaf fully expanded), while the most costly strategy was the application of poultry manure at the V3 stage (first trifoliate leaf fully expanded). Thus, the use of diazotrophic bacteria for seed inoculation and co-inoculation (Azospirillum brasilense and/or Rhizobium tropici) ensured financial returns and system profitability in common bean cultivation.