bluuebunny/crossref_metadata_2025 huggingface dataset:
Numerical simulation of springback and twisting of stamped thin U-shaped copper alloy sheets with a change of the blank alignment
Authors: Ha Giap Xuan
Published: June 2023

An experimental database of springback and twisting of U-shaped elongated structures is available from a previous study. The materials are copper alloys: pure Cu, CuBe2, and CuFe2P, provided in thin sheets of thickness around 0.1 mm. After deep-drawing of rectangular blanks, which can be aligned with the tools or slightly misaligned, and tool withdrawal, the U-shaped structure exhibits an opening of the section (2D springback) and twisting (3D springback). Characteristic features of the deformed geometry are significantly different for the three alloys. This study is directed to understand the origin of that difference with a numerical simulation of the process. The mechanical behaviour of the materials was investigated in tension and hydraulic bulge test, out of comparison’s sake and to derive the hardening law over a strain range representative of the process. Finite element simulations are performed using the von Mises criterion coupled with isotropic hardening, to compare the predicted forming load and springback parameters with experimental values.
Proportional Topology Optimization algorithm for two-scale concurrent design of lattice structures
Authors: Nguyen Minh Ngoc , Vo Duy , Bui Tinh Quoc
Published: June 2023

In this paper, the Proportional Topology Optimization (PTO) algorithm is extended for the two-scale concurrent topology optimization, in which both the structure and material cellular micro-structure are subject to design. PTO was originally developed on the concept that the amount of material being distributed to an element would be proportional to the contribution of that element in the objective function. Sensitivity analysis is not required. In a two-scale concurrent topology optimization problem, two sets of design variables are defined, one for macro-structure and one for micro-structure. Here, the objective function is reformulated such that the contribution of each micro-scale design variable can be determined, facilitating the employment of PTO. The macroscopic effective elastic tensor is evaluated by the energy-based homogenization method (EBHM), providing a link between micro-structure and macro-structure. Feasibility and efficiency of the proposed PTO approach are demonstrated via several benchmark examples of both two and three dimensional structures.
A single degree of freedom model for cracked beam
Authors: Hai Tran Thanh , Nam Do
Published: June 2023

This paper presents a simplified model of cracked beam by single-degree-of-freedom system. Equivalence between the beam and SDOF models means that they have the same fundamental natural frequency and similar frequency response functions (FRFs). Similarity of FRFs is checked by using the frequency-domain assurance criterion acknowledged herein as spectral similarity index (SSI). Finally, FRFs of both the cracked beam and its simplified SDOF model have been examined versus crack location and depth using the so-called spectral damage index (SDI). Numerical results show that SDI is significantly sensitive to crack and could be used as a novel indicator for crack detection in beam by measurements of frequency response functions.
SERUM VITAMIN D IN PATIENTS WITH BENIGN, PRIMARY MALIGNANT AND METASTATIC BONE TUMORS
Authors: Drobotun Oleg , Ternovy Мykola , Kolotilov Мykola
Published: June 2023

Participant in the process of normal bone remodeling is vitamin D, which, in addition, has antiinflammatory (anti-cytokine), anti-proliferative and anti-tumor  effects. Objective of the study is to assess the level of 25-hydroxyvitamin D3 concentration in blood serum before the start of treatment in patients with benign, primary malignant and metastatic bone tumors, taking into account polymorbidity. Materials and methods. The following patients were included in the study: 21 patients with benign pelvic bone tumors; 52 patients with malignant tumors of the bones of the pelvis and lower limbs; 52 patients with metastatic tumors of the bones of the pelvis and lower limbs. The control group consisted of 22 practically healthy volunteers without chronic diseases. The content of vitamin D was determined by the immunochemiluminescence method. The results. The content of vitamin D in blood serum in patients with benign bone tumors is in the range from 22.4 to 29.6 ng/ml, with primary malignant tumors — from 7.8 to 15.9 ng/ml, with metastatic ones — from 13.8 to 15.5 ng/ml. There are no statistically significant differences between the histotypes of primary malignant bone tumors (p > 0.05). Conclusions. Polymorbidity statistically significantly increases vitamin D deficiency in patients with osteogenic sarcoma and patients with metastatic bone tumors (p < 0.05). According to the national classification of vitamin D content, patients with benign bone tumors have a suboptimal level of vitamin D, while patients with primary malignant and metastatic bone tumors have vitamin D deficiency.
REHABILITATION OF PATIENTS AFTER SURGICAL TREATMENT OF STATIC DEFORMITIES OF THE FOREFOOT
Authors: Prozorovskiy Dmytro , Staude Volodymyr , Buznytskiy Ruslan
Published: June 2023

Postoperative rehabilitation of patients with hallux valgus is just as important, if not more so, than a technically flawless surgical intervention. Carrying out rehabilitation measures is an integral part of the postoperative period, which must be individual for each patient and depend on the volume and type of surgical intervention, the patient's age, and accompanying pathology. Objective. To improvethe results of the recovery of patients after orthopedic surgical interventions on the front part of the foot due to the developed complex system of postoperative rehabilitation. Methods. The articleprovides an analysis of the results of treatment of 70 patients with transversely spread deformation of the forefoot and hallux valgus 1–2 degrees using different approaches to rehabilitation measuresin the postoperative period. The patients were divided into 2 homogeneous groups by age, gender and degree of hallux valgus. Unlike the control group, manual therapy and myofascial massagetechniques were additionally used in the main group. The results. The results of the treatment were evaluated according to the AOFAS scoring scale for the forefoot, which is generally accepted inthe world. In the preoperative period, the average AOFAS score in the main and control groups was 65.4 and 64.7 points, respectively. 45 days after surgery, the average scores were 74.7 and 74.4 points,respectively. After 60 days, the average score in the main group was 92.1 points, and 82.6 in the control group. 3 months (90 days) after the surgical interventions, the average scores practically coincided in both groups and amounted to 93.7 points in the control group and 95.0 in the main group. The patients of the main group resumed their usual activities after 2 months. after the operation onthe front part of the foot, and the control after 3 months. Conclusions. The use of myofascial massage, manual therapy for mobilizing the metatarsophalangeal and interphalangeal joints of the toes with gymnastics to strengthen not only the stabilizers of the foot, but also to restore the bearing capacity of the girdle of the lower extremities and the stereotype of walking, made it possible to obtainnot only a positive functional result, but also to speed up the recovery compared to the control group per month.
Determining of the effects of paclobutrazol treatments on seedling height control of wild Gypsophila bicolor (Freyn & Sint.) Grossh
Authors: PARLAKOVA KARAGOZ Fazilet , DURSUN Atilla , KOTAN Muhammed Melih
Published: June 2023

Within the scope of this study, seeds were collected from Gypsophila bicolor (Freyn&Sint.) Grossh plants in their natural environment and two different locations (Turkey). The research was carried out to determine the effects of paclobutrazol applied at different concentrations (0.6, 0.9, 1.2, 1.5- and 2.0-ml L-1) on the seedling height control in the cotyledon leaf stage of G. bicolor. As a result of the study, it was determined that the decrease in the number of leaves per plant was determined at a dose of 1.2 mg L-1 paclobutrazol. The effect of paclobutrazol treatments on the seedling height control of G. bicolor changed according to the genotype as well as the dose. As the dose of paclobutrazol applied increased, the number of side branches decreased. It was determined that the seedling stem thickness increased in 47.71% with the dose of 2.0 mg L-1 when compared to the control treatment. The application in which the highest chlorophyll (SPAD) value was obtained from the application with a dose of 1.5 mg L-1. The chlorophyll value of G2 (Genotype 2 (ERZ) (G2)) was higher than that of G1 (Genotype 1 (VAN)). Seedling biomass of G1 increased in 15.87% in 1.2 mg L-1 treatment when compared to control. In the present study, darker green leaves were obtained from the highest dose of paclobutrazol, 2.0 mg L-1. As a general result, it was concluded that 1.5 mg L-1 dose of paclobutrazol was sufficient for both genotypes for plant height control in the seedling period.
Effect of silvicultural treatment of individual selection on the horizontal structure of a pine-oak forest in northern Mexico
Authors: RASCÓN-SOLANO Joel , GARCÍA-GARCÍA Samuel A. , GALVÁN-MORENO Viridiana S. , PÉREZ-ÁLVAREZ Sandra , AGUIRRE-CALDERÓN Oscar A. , QUIÑÓNEZ-BARRAZA Gerónimo
Published: June 2023

In sustainable forest management it is essential to conserve and maintain biodiversity, the floristic composition and the mixture of its species. For this purpose, the objective of this study was to evaluate the effect of the selection silvicultural treatment as a function of time, on the horizontal structure of a Pine-Oak Forest in northern Mexico. Nine sampling points were established to analyze the structure of the Initial Condition of the forest in 2012, the Recruitment of 2022 and the Final Condition of 2022. In addition, the Jaccard similarity coefficient and the Margalef wealth index were estimated. Likewise, Shannon true diversity index, the importance value index and the forest value index were calculated for each species. The analysis of variance with a confidence of 95% was used to evaluate the studied variables, multiple comparisons were made with Duncan's test to group the species in ranges of statistical importance. The results indicated that the forest not presented a change in similarity, richness and diversity of species due to the application of the selection silvicultural treatment, without statistical differences according to the mix and distribution of the species in the forest, this indicates that selective logging does not change the composition of forest species. Regarding the indices of true diversity, value of importance and forest value by species, no significant differences were observed in terms of the application of silvicultural treatment. According to these results, it was possible to identify groups of forest importance and value, where Pinus durangensis Martínez was the most representative species.
The correlation of in vitro antioxidant potentials with the various biochemical responses of salinized basil leaves
Authors: KANDIL Abeer S. , MOHAMED Mahmoud A. , EL-BELTAGI Hossam S. , GABALLA Hanan S.
Published: June 2023

One of the environmental sustainability issues is salinity. Basil seedlings (Ocimum basilicum L.) were treated using NaCl solutions of three different concentrations prepared using irrigation (40, 80, and 130 mM), and various biochemical analyses were performed on basil leaves. The number of leaves, leaf area, moisture, weights, and MDA content of basil decreased significantly as salinity levels increased from 40 to 130 mM; however, dry matter increased. As well, the current study investigated a significant increase in osmolytes (including total soluble sugars and proline) and Na+ contents. The highest activities of CAT and SOD in the leaf tissues of basil were recorded after treatment with 130 mM NaCl, whereas the polyphenol and total flavonoid contents were negatively influenced.  On the other hand, the highest ABTS scavenging activity was observed in the 40 mM-treated leaves at a concentration of 1000 µg/mL; however, the DPPH scavenging potential increased significantly in the 80 mM-treated leaves at 3000 µg/mL. Furthermore, the correlation between in vitro antioxidant potentials and biochemical responses was described. A strong correlation was identified between the in vitro antioxidant capacities of salinized O. basilicum leaves and SOD activity, total flavonoids, and the presence of phenolic acids, particularly p-hydroxybenzoic and o-coumaric acids at various concentrations. As a result, this is the first study to explain how basil may resist salinity by producing specific antioxidant compounds; therefore, our research recommends use of salinity issue to obtain a better plant material for producing dietary supplements or herbal drugs.
Response of different cultivation substrates on the chilling injury symptom of sweet pepper grown in hydroponics
Authors: AFOLABI Abiodun S. , CHOI In-Lee , KWON Yong Beom , LEE Joo Hwan , YOON Hyuk Sung , KANG Ho-Min
Published: June 2023

This study determined the chilling injury interactions of sweet peppers with their hydroponic growth substrate. The treatments were cocopeat, perlite, and a mixture of 50:50 cocopeat and perlite (coco-perlite). The fruits, when harvested, were stored for 50 days using the modified atmosphere package (MAP) at 5 °C. The results revealed no significant interactions between the growth substrate and the chilling injury indicators (respiration and ethylene production rates, electrolyte leakage, malondialdehyde), even though a significant interaction existed with the chilling injury index (a water-soaked area). This is believed to be due to the growth substrate’s significant interactions with soluble solids and dry matter, which aided cellular balance and increased chilling injury tolerance in perlite and coco-perlite treatment. Weight loss rate and firmness loss were insignificant in all treatments, and cocopeat treatment may be considered the worst of all treatments.
Effects of red and blue light ratio on the morphological traits and flower sex expression in Cucurbita moschata Duch.
Authors: LIN Kuan-Hung , CHEN Yu-Chi , WU Qi-En , LIN Hsin-Hung
Published: June 2023

Squash (Cucurbita moschata Duch.) is an important fruit vegetable that can be long-term transport and storage. Light-emitting diodes (LEDs) are commercially used light sources applied to improve the producing of leaf vegetables in plant factory. However, the influences of LEDs on the plant growth and flower development of fruit vegetables remain unknown. In this study, five effective light quality treatments, including white light, a 10:8 ratio of blue (B) to red (R) light, a 10:4 mixture of blue/red light, red light, and blue light, were used for growing squash and inducing female flowers to maximize production. Our results show that varying light quality influence morphological traits and flower appearance. Both blue and red light improved the development of first and second internodes and induced larger leaves and petiole lengths, whereas 10:4 mixture caused shorter plant heights and decreased internode and petiole lengths. Although 10:8 mixture treatment reduced chlorophyll content, this spectral regime increased leaf number and influenced flower sex development, inducing more female flowers and more fruits. Light quality manipulation thus beneficially influences the growth and flower sex proportion in squash plants. Squash plants under 10:8 mixture treatment exhibited increase in yield, and can be used as a supplementary light treatment in plant factory.
Introduction pages, NBHA-CN 51(2), 2023
Authors: SESTRAS Radu E.
Published: June 2023

The papers published in Notulae Botanicae Horti Agrobotanici Cluj-Napoca, Issue 2, Volume 51, 2023 represent new exciting research in different topics of life science, respectively in plant science, horticulture, agronomy, crop science, and forestry. Among the interesting articles we invite you to find news about: Cloning and analysis of DlERF23 gene in flower induction; Transcriptomic analysis reveals transcription factors involved in vascular bundle development and tissue maturation in ginger rhizomes (Zingiber officinale Roscoe); In vitro direct organogenesis of the medicinal single-mountain local prioritized vulnerable Greek endemic Achillea occulta under different medium variants; Methodological contribution on seed germination and seedling initial growth tests in wild plants; Deciphering the myth of cold tolerance in soybean: An overview of molecular breeding applications; The gall midge Obolodiplosis robiniae Haldemann (Diptera Cecidomyiidae) new invasive alien species in Europa; Effect of silvicultural treatment of individual selection on the horizontal structure of a pine-oak forest in northern Mexico.
Dynamic Evaluation of Voices’ Transparent Publishing Policy
Authors: Ghetti Claire
Published: July 2023

This is the editorial for the July 2023 issue.
POLÍTICA EDUCACIONAL NA REDE ESTADUAL PAULISTA SOB A NOVA GESTÃO PÚBLICA (1995-2018)
Authors: JACOMINI MÁRCIA APARECIDA , NASCIMENTO IRACEMA SANTOS DO , STOCO SERGIO
Published: June 2023

RESUMO: Este texto analisa a política educacional na rede estadual de ensino de São Paulo de 1995 a 2018, que compreende seis mandatos comandados pelo Partido da Social Democracia Brasileira (PSDB). O corpus de dados analisados constituiu-se dos principais programas e projetos de cada uma das gestões. Como referencial teórico que embasou a análise, utilizou-se os conceitos de Estado integral e de hegemonia da ideologia das classes dominantes de Gramsci e a Teoria do Equilíbrio Pontuado (TEP). Recorreu-se, ainda, a estudos acadêmicos realizados sobre alguns dos programas e projetos. Verificou-se que o paradigma de gestão adotado pela pasta da educação desde o primeiro mandato foi o da Nova Gestão Pública (NGP), em consonância com a opção feita pelo governo de Fernando Henrique Cardoso no âmbito federal, por sua vez alinhada à vigente ordem internacional do sistema de produção capitalista. Dentre as conclusões da análise, destacam-se: a implantação de tal modelo de gestão ajustou-se, ampliou-se e aprofundou-se ao longo das sucessivas administrações; a resistência, pois isso não se dá sem tensões, dissidências e conflitos internos, como dificuldades e algumas derrotas impostas por movimentos questionadores; a contraposição ao princípio constitucional da gestão democrática da educação pública e da progressiva autonomia da escola preconizada pela Lei de Diretrizes e Bases da Educação Nacional (LDB). Em síntese, tal concepção de gestão, alicerçada na lógica empresarial, na centralização de formulação e decisões e na delegação verticalizada de tarefas à escola, não tem se mostrado capaz de cumprir a promessa de melhoria da qualidade do ensino.
SENSIBILIDADE POLÍTICA E PERFORMATIVIDADE DA EDUCAÇÃO ÉTICA
Authors: VALLE LÍLIAN DO
Published: June 2023

RESUMO: Foucault dizia que governar é moldar a conduta dos indivíduos: mais amplamente, afirma Michel Feher, modos de governo específicos instituíram ao longo da história diferentes representações da condição humana, moldando valores, aspirações e modos de ser. Ora, a sensibilidade própria ao neoliberalismo se caracteriza pelo reforço do narcisismo, pela pouca atenção ao outro, de quem se espera que ratifique a apreciação positiva que se tem de si. Pela indiferença. O artigo analisa a resposta que Judith Butler e Athena Athanasiou oferecem para esse quadro, a partir de uma crítica radical da teoria do reconhecimento e, é claro, da figura do proprietário, «sujeito soberano e unitário», que pensa ter segurança e conforto assegurados. Propõe ainda que sua defesa da performatividade política da situação de precariedade - condição que, afinal, todos partilhamos - abre caminho para pensarmos a educação ética na atualidade.
EMOTIONAL REGULATION IN THE WORKPLACE: A QUALITATIVE STUDY WITH TEACHERS
Authors: MORAIS FRANCIANE ANDRADE DE , GONDIM SÔNIA MARIA GUEDES , PALMA EMANUEL MISSIAS SILVA
Published: June 2023

ABSTRACT: This study aimed to characterize the emotional labor of the professional and technological education teacher by examining the emotions and the emotion regulation strategies teachers adopt. Eight focus groups were held, with the participation of forty-one teachers to collect the data. For the data analysis, we adopted the inductive and deductive categorization methods. The results showed that different emotions are activated in the face of specific emotional demands and that teachers use a variety of strategies, either in isolation or in chains, to regulate them. However, cognitive change strategies and situation modification of the procedural model of emotional regulation were more frequently reported. The results suggest differences in the regulatory preferences of the teachers based on the career period and the training /performance area. Future research could use varied methods (e.g., observation diary) to investigate the regulation’s dynamic, context, and outcomes and develop a contextual scale of teacher emotion regulation. The findings have implications for teacher training programs, educational management, and future research.
CÓDIGO DE ÉTICA PARA A PROFISSÃO DOCENTE: PERCEPÇÕES E OPINIÕES DE EDUCADORES
Authors: SILVA PAULO FRAGA DA , ISHII IONE , KRASILCHIK MYRIAM
Published: June 2023

RESUMO: A presente pesquisa teve como objetivo analisar as percepções e opiniões sobre a existência de um código de ética para a profissão docente entre os seguintes grupos: formadores de professores, professores da Educação Básica e licenciandos. Os dados foram obtidos a partir de um formulário digital, o qual foi preenchido pelos grupos mencionados. A análise dos dados indicou a necessidade da existência de um instrumento que oriente as ações dos professores frente a situações espinhosas, as quais não são discutidas nos cursos de formação, mas fazem parte do cotidiano escolar. Por outro lado, houve uma preocupação sobre quem elaboraria esse instrumento e como este seria utilizado pelas instituições. Os resultados apontam para a demanda dos licenciandos, professores e formadores de professores por processos formativos que privilegiem aspectos da orientação, reflexão e tomada de decisões em situações do dia a dia da escola. A inclusão desses temas nos cursos de formação de professores faz-se essencial para que estes possam participar ativa e criticamente da contínua construção de um possível código de ética, ou de práticas de reflexão sobre os princípios e valores que norteiam sua profissão. Defende-se que é fundamental a presença do tema “código de ética” nos currículos de formação de professores, pois os formandos precisam ser prevenidos de que as suas futuras atribuições, no cotidiano laboral, não se limitam apenas ao ensino mas envolvem também responsabilidades decorrentes das questões que surgem nesse contexto e do impacto de suas decisões sobre estudantes, docentes e instituições.
Quais as relações institucionais entre o passado colonial da economia brasileira e o desenvolvimento do seu sistema financeiro?
Authors: Freddo Daniela , Vargas Juliano
Published: June 2023

Resumo Amparados no referencial teórico keynesiano e cepalino/furtadiano, investigamos as relações institucionais entre o passado colonial brasileiro e o desenvolvimento do seu sistema financeiro até os anos de 1960. A hipótese subjacente é a de que existe conexão entre um sistema financeiro deficiente em prover fundos ao investimento e a condição brasileira economicamente periférica. Esta estava subordinada a instituições europeias portuguesas, apesar de imersa no processo de acumulação do capitalismo mercantil. Isso mudou na passagem do modelo primário-exportador ao orientado à demanda doméstica. O processo de industrialização pressionou um sistema financeiro inapto a atender à crescente demanda creditícia, ampliando a necessidade de instrumentos e mecanismos de financiamento do investimento. Todavia, conforme o sistema financeiro desenvolvia-se, as instituições financeiras lucravam, não apesar das “disfuncionalidades” impostas pela condição periférica econômica brasileira, mas por meio delas. Conclui-se que tais relações institucionais foram a herança do passado colonial deixada ao sistema financeiro contemporâneo.
Mercado de trabalho formal e pandemia: análise da alocação laboral em diferentes setores econômicos
Authors: Paula Junior Amarildo de , Wroblevski Bruno , Gobi José Rodrigo , Silva Rodrigo Monteiro
Published: June 2023

Resumo A pandemia de Covid-19 implicou diversas consequências sobre as economias de todo o mundo, sobretudo no mercado de trabalho. Considerando esse contexto, o presente estudo analisa quais caraterísticas pessoais e socioeconômicas estão associadas com a participação formal dos indivíduos no mercado de trabalho brasileiro em um cenário pandêmico. Para tanto, foram utilizados os dados da PNAD Covid-19 referentes ao ano de 2020 com aplicação de regressões logísticas. Os resultados indicaram diferentes relações entre as variáveis de sexo, raça e responsabilidade familiar com a probabilidade de o indivíduo estar ocupado com carteira assinada. Além disso, foi verificado também que indivíduos diagnosticados com algum fator de risco à saúde possuem menores chances de estarem em situação de ocupação formal. Por fim, constatou-se que essa heterogeneidade também existe quando se consideram as diferenças setoriais.
A pandemia de Covid-19 e a política fiscal: o que há de novo na visão do mainstream?
Authors: Montani Norberto , Busato Maria Isabel
Published: June 2023

Resumo Este artigo tem como objetivo mapear os debates da visão convencional sobre política fiscal engendrados pela crise associada à pandemia de Covid-19. Apresentam-se discussões em torno das seguintes questões: (a) a política fiscal num contexto de taxas de juros baixas; (b) as métricas para avaliar a situação fiscal de uma jurisdição; (c) o espaço para ações discricionárias semiautônomas ou para arcabouços guiados por princípios; e (d) a concepção consolidada nas publicações mais recentes do Fundo Monetário Internacional (FMI). Argumenta-se que a aceitação de expansões fiscais em contextos de taxas de juros baixas - especialmente, aquelas focadas em investimentos públicos não geradores de despesas de custeio - e a adoção de maior flexibilidade no arcabouço de regras fiscais nos países centrais reaparecem como elementos importantes na “nova” concepção do mainstream. Contudo, quanto às economias em desenvolvimento, persiste inalterada uma concepção fiscalista e contrária ao endividamento, continuando “arraigadas as velhas convicções”.
Tratamento endovascular de aneurisma de artéria isquiática bilateral com stent recoberto autoexpansível Covera® - relato de caso
Authors: Birck Luisa Silveira , Damazzini Rodrigo , Nunes Wiliam Perdomo , Lombard Thiago Filomena , Longhi Joel Alex
Published: June 2023

Resumo A persistência da artéria isquiática é um remanescente embriológico da artéria ilíaca interna que ocorre em 0,03% a 0,06% da população, podendo evoluir com degeneração aneurismática. A presença do aneurisma pode levar a embolização, com aumento de risco de perda do membro, principalmente se a artéria isquiática for seu principal suprimento arterial. O tratamento do aneurisma de artéria isquiática está indicado sempre que diagnosticado, devido ao alto risco de complicações. Entre as opções de tratamento, estão o tratamento aberto convencional, o tratamento endovascular e o tratamento híbrido. No presente estudo, será descrito o caso de um paciente apresentando persistência completa das artérias isquiáticas bilateralmente, com degeneração aneurismática de ambas, corrigida de forma endovascular com stent recoberto Covera® (Bard Medical, Geórgia, Estados Unidos).
Deep venous thrombosis of the contralateral iliac vein after stenting of the iliocaval confluence: a therapeutic challenge
Authors: Della Costa Annata Teixeira , Sincos Igor Rafael , Riscado Lorrane Vieira Siqueira
Published: June 2023

Abstract The treatment of choice for patients with symptomatic venous compression syndrome is venous stenting. However, this treatment has well-documented complications and, although rare, contralateral deep venous thrombosis is one of these complications. Our objective is to present a case of deep venous thrombosis of the contralateral iliac vein resulting from placement of the stent beyond the recommended position and the therapeutic challenge is to recanalize the vein with reconstruction of the iliocaval confluence.
Clinically important left superior polar artery giving rise to a left inferior suprarenal artery and an aberrant left inferior polar artery: a case report
Authors: Kumar Naveen , Padur Ashwini Aithal , Gadahad Mohandas Rao Kappettu , Shanthakumar Swamy Ravindra
Published: June 2023

Abstract The renal arteries arise from the lateral side of the abdominal aorta at the L2 vertebral level, just below the origin of the superior mesenteric artery. Multiple aberrant renal arteries can pose difficulties in renal transplantation, interventional radiological and urological procedures, renal artery embolization, angioplasty, or vascular reconstruction for congenital and acquired lesions. We present a case of a left kidney supplied by the left renal artery along with superior and inferior polar arteries, arising from the aorta and inferior mesenteric artery respectively. The inferior mesenteric artery was crossed by the left ureter and inferior mesenteric vein. The superior polar artery gave rise to an inferior suprarenal artery making the variation important for clinicians and surgeons.
Successful use of rivaroxaban achieving therapeutic anti-factor xa levels in a morbidly obese patient with acute intermediate-high risk pulmonary embolism
Authors: Dah Kingsley , Porres-Aguilar Mateo , Rosa Alan De la , Prakash Swathi
Published: June 2023

Abstract Direct oral anticoagulants (DOACs) have become the standard of care for acute and long-term therapy for venous thromboembolism (VTE) due to their efficacy and safety profiles. The 2021 International Society on Thrombosis and Haemostasis guidelines recommend using standard DOAC dosages in patients with BMI >40 kg/m2 or weight >120 kg. Use of DOACs remains uncertain in morbidly obese patients with VTE, including acute PE. A morbidly obese woman in her 30s who presented with acute worsening of dyspnea was diagnosed with acute intermediate-high risk acute pulmonary embolism and concomitant proximal deep vein thrombosis, constituting a clinically challenging scenario for treating her with rivaroxaban. Standard doses of rivaroxaban for acute and extended phase treatment of venous thromboembolism in individuals with morbid obesity at BMI>70 kg/m2 may be effective, and safe.
Inoculation methods of Azospirillum brasilense in lettuce and arugula in the hydroponic system
Authors: Oliveira Carlos E. da S. , Gato Isabela M. B. , Moreira Vitoria de A. , Jalal Arshad , Oliveira Thaissa J. S. S. , Oliveira Julia R. , Fernandes Guilherme C. , Teixeira Filho Marcelo C. M.
Published: June 2023

ABSTRACT: Lettuce and arugula are the most cultivated leafy vegetables in hydroponic systems in the world, and the little information about Azospirillum brasilense effects in research in this system makes it necessary to verify the best method of inoculation of these bacteria. Therefore, this study aimed to verify the beneficial effects of inoculation methods of A. brasilense on plant growth and nutrition of lettuce and arugula grown in the hydroponic system. The study was conducted in a greenhouse with 30% shading. A randomized block design with five replicates in a 4 × 2 factorial scheme was used. Four A. brasilense inoculation methods (non-inoculated, foliar application, nutrient solution, and nutrient solution + foliar application) and two leafy vegetable species - arugula and lettuce - were evaluated. All inoculation methods improved plant height, shoot fresh and dry mass, root fresh and dry mass, fresh leaf yield, leaf chlorophyll index, accumulation of nitrogen, potassium, calcium, sulfur, phosphorus, iron, manganese, and copper and reduced nitrate accumulation in shoot and root of arugula and lettuce. Inoculation via nutrient solution + foliar application of A. brasilense is the most suitable for hydroponic arugula cultivation because it provides greater fresh leaf yield. All inoculation methods increased leaf yield in hydroponic lettuce. Hydroponic arugula and lettuce plants showed greater accumulation of nutrients and plant growth with less nitrate accumulation in the shoot under inoculation with A. brasilense.
Artificial intelligence for small hydroponics farms employing fuzzy logic systems and economic analysis
Authors: Amalia Anugerah F. , Rahayu Heni S. P. , Rahardjo Yogi P. , Hutahaean Lintje , Rohaeni Eni S. , Indrawanto Chandra , Saptati Ratna A. , Siagian Viktor , Waris Abdul
Published: June 2023

ABSTRACT The application of artificial intelligence (AI) in modern agriculture has attracted increasing attention since its automation has the potential to accelerate food production with efficiency in resource use. Fuzzy logic, as one AI method, can be applied in hydroponics as an automation function of a nutrient mixing machine. There have been some inventions of nutrient mixing machines in commercial-scale agribusiness but not yet at the level of the small and medium farms that are mostly found in developing countries. This study constructed a hydroponics nutrient mixing machine employing a fuzzy logic method, calculated the machine’s efficiency, and evaluated its economic application. The automated nutrient mixing machine using fuzzy logic was efficient, and both theoretical field capacity and actual field capacity indicators were higher with the use of the nutrient mixing machine compared to manual nutrient mixing. This machine saves 78% of the labor normally used for mixing nutrients, with a saving of up to 42.86% in the nutrients used compared with mixing manually.
Implementation of modified Seldinger technology for percutaneous catheterization in critically ill newborns
Authors: Pereira Higor Pacheco , Secco Izabela Linha , Arrué Andrea Moreira , Pontes Letícia , Danski Mitzy Tannia Reichembach
Published: June 2023

ABSTRACT Objective: To describe the implementation of Modified Seldinger Technology for percutaneous catheterization in critically ill newborns. Method: A quasi-experimental before- and-after study, carried out with neonatologist nurses in a Neonatal Intensive Care Unit. Results: Seven nurses participated in the research. Catheter pre-insertion, insertion and maintenance were assessed using the conventional and modified Seldinger technique. Reliability was satisfactory in pre-test, 5.40 (Md = 6.00), and post-test, 5.94 (Md = 7.00), and perfect in the items about device insertion and maintenance. There was low assertiveness in the items on indication, microintroduction procedure via ultrasound, limb repositioning and disinfection of connections/connectors. Conclusion: Despite the Modified Seldinger Technique expanding some stages of execution over the traditional method of percutaneous catheterization, nurses were more assertive after theoretical-practical training. The technology was implemented and is in the process of being implemented in the health service.
CARE TECHNOLOGY PROTOTYPE FOR FLUSHING PRACTICE IN INTRAVENOUS CATHETER MAINTENANCE
Authors: Ribeiro Gabriella da Silva Rangel , Campos Juliana Faria , Parreira Pedro Miguel Santos Dinis , Silva Rafael Celestino da
Published: June 2023

ABSTRACT Objective: to elaborate, based on the assessment of the nursing team’s flushing practice, a care technology prototype aimed at promoting good practices in intravenous catheter maintenance in intensive care. Method: a technology elaboration study, developed in three stages: flushing practice assessment through a questionnaire completed by 108 nursing professionals working in intravenous catheter maintenance in intensive care settings of a public hospital located in the city of Rio de Janeiro, Brazil. Data collection took place from November 2019 to January 2020, with descriptive and inferential data analysis; analysis of this practice regarding the existence of errors according to the main guidelines and scientific evidence, with classification of types of errors in the light of the conceptual framework of patient safety; and technology prototype development. Results: 88% of participants perform flushing in their practice; 49.5% apply the continuous pressure technique on the syringe plunger; 22% perform flushing before, between and after medication administration; predominance of use of volume and syringes with gauges of 5 ml and 10 ml. Variables related to knowledge were associated with not performing flushing. There were active and latent errors that guided the technology prototype construction. Conclusion: a care guide was built that aims to increase nursing team’s knowledge about good flushing practices and is configured as a barrier to error recurrence.
CARE FOR POTENTIAL BRAIN-DEAD ORGAN DONORS IN AN ADULT EMERGENCY ROOM: A CONVERGENT CARE PERSPECTIVE
Authors: Flores Cíntia Maria Lovato , Silva Rosângela Marion da , Tamiozzo Juliana , Centenaro Alexa Pupiara Flores Coelho , Silva Denise Maria Guerreiro Vieira da , Zamberlan Cláudia , Camponogara Silviamar
Published: June 2023

ABSTRACT Objective: to investigate situations that interfere with health professionals’ performance, in the identification and maintenance of potential brain-dead donors in an Adult Emergency Care Unit, and to indicate actions, from the health team’s perception, that can promote care for these patients. Method: this is a qualitative, convergent care research, carried out with health professionals from an adult emergency unit, a large public teaching hospital located in southern Brazil. Data were collected between February 2020 and January 2021 through structured participant observation, semi-structured interview and convergence group. Data analysis was performed according to the stages of gathering, synthesis, theorization and transfer. Results: based on data analysis, the difficulties in caring for brain-dead persons, lack of information, inadequate structure and difficulties in the work process were identified as situations that interfere with health professionals’ performance in relation to brain-dead potential donors. Actions were signaled to promote care for these people through continuing education activities on the subject, dissemination of information, construction of technologies/protocols, organization of infrastructure and the work process with support for professionals who assist these people. Conclusion: it was evidenced that professional education, the organization of the donation process and systematized actions to improve the work are fundamental factors for the effective care for brain-dead potential organ donors.
ASSISTÊNCIA AO POTENCIAL DOADOR DE ÓRGÃOS EM MORTE ENCEFÁLICA EM PRONTO-SOCORRO ADULTO: PERSPECTIVA CONVERGENTE-ASSISTENCIAL
Authors: Flores Cíntia Maria Lovato , Silva Rosângela Marion da , Tamiozzo Juliana , Centenaro Alexa Pupiara Flores Coelho , Silva Denise Maria Guerreiro Vieira da , Zamberlan Cláudia , Camponogara Silviamar
Published: June 2023

RESUMO Objetivo: investigar situações que interferem na atuação dos profissionais da saúde, na identificação e manutenção do potencial doador em morte encefálica em uma unidade de pronto-socorro adulto e sinalizar ações, na percepção da equipe de saúde, que possam promover a assistência a esses pacientes. Método: pesquisa qualitativa, convergente-assistencial, realizada com profissionais de saúde de uma unidade de pronto-socorro adulto, de um hospital-escola público e de grande porte localizado no Sul do Brasil. Os dados foram coletados entre fevereiro de 2020 e janeiro de 2021 por meio de observação estruturada participante, entrevista semiestruturada e grupo de convergência. A análise dos dados foi realizada de acordo com as etapas: apreensão, síntese, teorização e transferência. Resultados: a partir da análise dos dados identificaram-se como situações que interferem na atuação dos profissionais da saúde frente ao potencial doador em morte encefálica as dificuldades na assistência à pessoa em morte encefálica, a falta de informação, estrutura inadequada e as dificuldades no processo de trabalho. Houve sinalização de ações para promover a assistência a essas pessoas por meio de atividades de educação permanente sobre o tema, divulgação de informações, construção de tecnologias/protocolos, organização da infraestrutura e do processo de trabalho com suporte aos profissionais que atendem essas pessoas. Conclusão: evidenciou-se que a educação profissional, a organização do processo de doação e ações sistematizadas para aperfeiçoamento do trabalho são fatores fundamentais para a efetiva assistência ao potencial doador de órgãos em morte encefálica.
Weed interference periods in lettuce crop
Authors: Riva Nicole B da , Biffe Denis Fernando , Nalin Daniel , Mendes Rafael R , Ferreira Luiz Augusto I , Silva Vanessa Francieli V , Constantin Jamil
Published: June 2023

ABSTRACT The knowledge of the adequate period for the beginning of weed management in lettuce crop can increase the efficiency of production, reducing the costs with management. The aim of this study was to determine the pre-interference period (PIP), the critical time for weed removal (CTWR) and the critical period of weed control (CPWC) in three lettuce cultivars, Elisa, Lucy Brown and Solaris. Coexistence and the absence of weeds were evaluated for each cultivar. The design was in randomized blocks with seven treatments (0, 7, 14, 21, 28, 35 and 42 days after transplanting - DAT) of coexistence and the same seven periods of weed absence with four replicates in each experiment. The highest infestation densities were with the species Oxalis latifolia, Coronopus didymus and Amaranthus hybridus. The leaf area and number of leaves per plant were reduced by up to 50% and 66%, respectively, in relation to the longest period of coexistence with weeds and yield reduced by 48% (Elisa), 40% (Lucy Brown) and 33% (Solaris). The cultivar Solaris showed greater tolerance to weed interference. Based on yield, PIP was 1, 3 and 3 DAT and CTWR was 37, 37 and 35 DAT, and CPWC was 2 to 37, 3 to 37 and 3 to 35 for the cultivars Elisa, Lucy Brown and Solaris, respectively.
Dataset construction and data science analysis of physicochemical characterization of ordinary Portland cement
Authors: Chaves Jéssica Fall Nogueira , Evangelista Junior Francisco , Rêgo João Henrique da Silva , Vasques Lucas de Paula
Published: June 2023

Abstract This paper presents a dataset construction and data science analysis from the literature results of physicochemical characterization of ordinary Portland cement (OPC). The physicochemical variables included the percentage by mass of calcium oxide (CaO), silicon dioxide (SiO2), aluminum oxide (Al2O3), iron oxide (Fe2O3), magnesium oxide (MgO), sulfuric oxide (SO3), sodium oxide (Na2O), potassium oxide (K2O), titanium oxide (TiO2), free lime (CaOfree), equivalent alkaline (Na2Oeq), loss on ignition, specific surface, density, water-cement ratio, and compressive strength of cement at 28 days. The searching, collection, and assembly of the dataset aimed to evaluate the information related to those variables through exploratory data analysis, enabling a basic understanding of characterization results of OPCs obtained in publications from different types, sources, years, and countries. The dataset provides a useful source of physicochemical characterization of ordinary cement, and the exploratory data analysis provided an understanding of central, dispersion, and data distribution with statistical metrics of each variable and their pair-wise correlations in the assembled dataset. The constructed dataset and its analysis are a starting point to further data, studies, and artificial intelligence models to provide a broader global view of the production and properties of ordinary Portland cement.
Asynchronous Development of the Labour Market and the Market of Educational Services Contributing to the Shrinking of Old Industrial Regions
Authors:   Volgograd State Technical University, Akimovа О. Е. , Volkov S. K. ,   Volgograd State Technical University, Efimov E. G. ,   Volgograd State Technical University
Published: June 2023

Many Russian regions face shrinking, despite the measures taken by national and regional authorities to slow down this process. The problem of shrinking is especially relevant for old industrial cities and regions unable to adapt to new challenges of the market economy after the shock transition from planned to market economy. The study aims to prove that the asynchronous development of the labour market and the market of educational services contributes to the shrinking of old industrial regions, as well as to identify the interdependence between these markets seen as the most important elements of spatial development strategy in such regions. The research examined data on Volgograd oblast, which is a typical shrinking old industrial region, whose development largely depends on successful retention of graduates on the regional labour market. A sociological survey conducted online in October 2021 of 335 students of the Volgograd State Technical University (the backbone university of the region) was analysed. The comparison of the obtained results with relevant statistical data confirmed asynchronous development of the labour market and the market of educational services. Since the labour market is associated with the real sector of the economy, it does not generate a demand for the regional staff training system. The declared innovative development does not lead to the creation of innovative jobs and, accordingly, to the increase in demand for new professions and competences. A conservative approach of regional universities to staff training also causes asynchrony. To overcome the identified asynchrony, it is required to transform old industrial regions to meet the requirements of the new technological mode, strengthen cooperation between educational institutions and enterprises of the real sector of the economy, and revise educational programmes.
Dependence of Informal Employment on Population Income in Russian Regions: Lessons from the Pandemic
Authors:   North-Caucasus Federal University, Kunitsyna N. N. , Dzhioev A. V. ,   North-Caucasus Federal University
Published: June 2023

The coronavirus spread transformed the economy and social order, and dealt a crushing blow to the labour market. Considering the worsening unemployment, it becomes important to reduce informal employment, which leads to an increase in the shadow economy. It is hypothesised that the decline in official income is accompanied by an increase in informal employment differentiated across Russian region. The study aims to theoretically justify and empirically confirm the relationship between the consequences of the pandemic, decline in population income and dynamics of informal employment in regions, as well as to develop ways to reduce their negative impact on the labour market. The study utilised an approach of the Federal State Statistics Service (Rosstat) to determining employment criteria; additionally, expert and analytical methods, analysis of statistical series, clustering and cartography were applied. The regions were clustered according to Ward’s hierarchical method based on weighted standardised data. To this end, official data from Rosstat, the United Nations, and the World Bank were examined. As a result, the analysis of informal employment in Russian regions during the pandemic did not confirm the hypothesis, showing that informal employment actually decreased in most constituent entities; the largest decrease was observed in the North Caucasus republics. The performed clustering revealed groups of Russian regions in terms of the dependence of informal employment on average per capita income and gross regional product per capita. The obtained findings can be used to develop standard solutions for establishing long- and short-term support measures for employees at the national, regional and micro-level aimed at reducing the negative impact of the identified reasons for the growth of informal employment.