bluuebunny/crossref_metadata_2025 huggingface dataset:
Stoichiometry and stable isotopes of plants and their response to environmental factors in boreal peatland, Northeast China
Authors: Wang Shujie , Wang Xianwei , Sun Xiaoxin , Ma Guobao , Du Yu , Jiang Jingyi
Published: December 2022

The alterations of plant composition and diversity pose a threat to the stability of the carbon pool in boreal peatland under climate change. We collected the samples of three plant functional types (deciduous shrubs, evergreen shrubs, and sedge) in seven permafrost peatlands of the Great Hing’an Mountains, China, and measured the properties of total carbon (TC), nitrogen (TN), and phosphorus (TP), their stoichiometric ratios (C:N, C:P, and N:P), and the stable isotope values (δ13C and δ15N) of six tissues (ranging from leaves to roots). For TC, TN, and TP, the contents had an average of 470.69 ± 1.56, 8.03 ± 0.23, and 1.71 ± 0.61 mg·g−1, respectively. TC contents of sedge were lower than those of shrubs for the whole plant. The allocations of N and P to shrub leaves were higher than to stems and roots. There was a similar trend of TN and TP contents, and stoichiometric ratios from leaves to roots between deciduous shrubs and evergreen shrubs. Shrubs and sedge have similar C: N in leaves and fine roots, while leaves of sedge C:P and N:P ratios were higher than shrubs, mainly showed that sedge is N and P co-limitation and shrubs are N limitation. The values of δ13C and δ15N were significantly higher in leaves and roots of sedge than those of shrubs, which means shrubs have higher nutrient acquisition strategies. These results support the shrubs are expanding in the boreal peatland under climate warming through nutrient competition. TC contents of all deciduous shrubs and sedge tissues were positively linear correlated to MAT and the values of δ13C and δ15N in sedge had significant relationships with MAT and MAP. Our results imply warming can increase plant photosynthesis in boreal peatland, and sedge was more sensitive to climate change. These findings would be helpful to understanding the responses of different plant tissues to climate changes in permafrost peatland.
Spatial genetic patterns in African wild dogs reveal signs of effective dispersal across southern Africa
Authors: Tensen L. , Jansen van Vuuren B. , Groom R. , Bertola L. D. , de Iongh H. , Rasmussen G. , Du Plessis C. , Davies-Mostert H. , van der Merwe D. , Fabiano E. , Lages F. , Rocha F. , Monterroso P. , Godinho R.
Published: December 2022

Across much of Africa, decades of civil war, land reforms, and persecution by humans have decimated wildlife populations. African wild dogs (Lycaon pictus) have declined dramatically during the past decades, but have shown recent natural recolonisation of some areas. In Angola, they were rediscovered after almost five decades when no surveys were being conducted, and they have recolonised areas in southern Zimbabwe and northern South Africa. Wild dogs were also reintroduced to Mozambique, where only few individuals remained. Against this backdrop, understanding genetic structure and effective dispersal between fragmented populations is essential to ensure the best conservation approaches for the long-term survival of the species. Our study investigated population genetic diversity, differentiation and gene flow of wild dogs across southern Africa, to include areas where they have recently been rediscovered, reestablished or reintroduced. Our results point to four weakly differentiated genetic clusters, representing the lowveld of Zimbabwe/Limpopo, Kruger NP, Angola/KAZA-TFCA, and the managed metapopulation, counterbalanced by moderate levels of effective dispersal on a southern African scale. Our results suggest that if the human footprint and impact can be significantly minimized, natural dispersal of wild dogs could lead to the demographic recovery of the species in southern Africa.
Intima-media thickness cut-off values depicting “halo sign” and potential confounder analysis for the best diagnosis of large vessel giant cell arteritis by ultrasonography
Authors: Milchert Marcin , Fliciński Jacek , Brzosko Marek
Published: December 2022

Background

Vascular ultrasound enables fast-track diagnosis of giant cell arteritis (GCA), but this method remains subjective. We aimed to determine intima-media thickness (IMT) cut-off values for large vessel GCA (LV-GCA) and identify the clinically relevant factors influencing it.

Methods

We included 214 patients referred for ultrasound evaluation within a fast-track clinic due to suspected GCA. IMT was measured in axillary, brachial, subclavian, superficial femoral, and common carotid arteries (CCA), in a place without identifiable atherosclerotic plaques. IMT cut-off values for vasculitis were determined by comparing measurements in arteries classified as vasculitis vs. controls without GCA/polymyalgia rheumatica (PMR).

Results

Giant cell arteritis was diagnosed in 81 individuals, including extracranial LV-GCA in 43 individuals. Isolated PMR was diagnosed in 50 subjects. In 83 remaining patients, another diagnosis was confirmed, and they served as controls. The rounded optimal IMT cut-off values for the diagnosis of axillary vasculitis were 0.8 mm, subclavian-0.7 mm, superficial femoral-0.9 mm, CCA-0.7 mm, and brachial-0.5 mm. The IMT cut-off values providing 100% specificity for vasculitis (although with reduced sensitivity) were obtained with axillary IMT 1.06 mm, subclavian-1.35 mm, superficial femoral-1.55 mm, CCA-1.27 mm, and brachial-0.96 mm. Axillary and subclavian arteritis provided the best AUC for the diagnosis of GCA, while carotid and axillary were most commonly involved (24 and 23 patients, respectively). The presence of calcified atherosclerotic plaques was related to an increase of IMT in both patients and controls, while male sex, age ≥ 68, hypertension, and smoking increased IMT in controls but not in patients with GCA.

Conclusion

Cut-off values for LV-GCA performed best in axillary and subclavian arteritis but expanding examination to the other arteries may add to the sensitivity of GCA diagnosis (another location, e.g., brachial arteritis) and its specificity (identification of calcified atherosclerotic plaques in other arteries such as CCA, which may suggest applying higher IMT cut-off values). We proposed a more linear approach to cut-off values with two values: one for the most accurate and the other for a highly specific diagnosis and also considering some cardiovascular risk factors.
More microbial manipulation and plant defense than soil fertility for biochar in food production: A field experiment of replanted ginseng with different biochars
Authors: Liu Cheng , Xia Rong , Tang Man , Liu Xiaoyu , Bian Rongjun , Yang Li , Zheng Jufeng , Cheng Kun , Zhang Xuhui , Drosos Marios , Li Lianqing , Shan Shengdao , Joseph Stephen , Pan Genxing
Published: December 2022

The role of biochar–microbe interaction in plant rhizosphere mediating soil-borne disease suppression has been poorly understood for plant health in field conditions. Chinese ginseng (Panax ginseng C. A. Meyer) is widely cultivated in Alfisols across Northeast China, being often stressed severely by pathogenic diseases. In this study, the topsoil of a continuously cropped ginseng farm was amended at 20 t ha–1, respectively, with manure biochar (PB), wood biochar (WB), and maize residue biochar (MB) in comparison to conventional manure compost (MC). Post-amendment changes in edaphic properties of bulk topsoil and the rhizosphere, in root growth and quality, and disease incidence were examined with field observations and physicochemical, molecular, and biochemical assays. In the 3 years following the amendment, the increases over MC in root biomass were parallel to the overall fertility improvement, being greater with MB and WB than with PB. Differently, the survival rate of ginseng plants increased insignificantly with PB but significantly with WB (14%) and MB (21%), while ginseng root quality was unchanged with WB but improved with PB (32%) and MB (56%). For the rhizosphere at harvest following 3 years of growing, the total content of phenolic acids from root exudate decreased by 56, 35, and 45% with PB, WB, and MB, respectively, over MC. For the rhizosphere microbiome, total fungal and bacterial abundance both was unchanged under WB but significantly increased under MB (by 200 and 38%), respectively, over MC. At the phyla level, abundances of arbuscular mycorrhizal and Bryobacter as potentially beneficial microbes were elevated while those of Fusarium and Ilyonectria as potentially pathogenic microbes were reduced, with WB and MB over MC. Moreover, rhizosphere fungal network complexity was enhanced insignificantly under PB but significantly under WB moderately and MB greatly, over MC. Overall, maize biochar exerted a great impact rather on rhizosphere microbial community composition and networking of functional groups, particularly fungi, and thus plant defense than on soil fertility and root growth.
Epigenetics in depression and gut-brain axis: A molecular crosstalk
Authors: Begum Nusrat , Mandhare Aniket , Tryphena Kamatham Pushpa , Srivastava Saurabh , Shaikh Mohd Farooq , Singh Shashi Bala , Khatri Dharmendra Kumar
Published: December 2022

Gut-brain axis is a dynamic, complex, and bidirectional communication network between the gut and brain. Changes in the microbiota-gut-brain axis are responsible for developing various metabolic, neurodegenerative, and neuropsychiatric disorders. According to clinical and preclinical findings, the gut microbiota is a significant regulator of the gut-brain axis. In addition to interacting with intestinal cells and the enteric nervous system, it has been discovered that microbes in the gut can modify the central nervous system through metabolic and neuroendocrine pathways. The metabolites of the gut microbiome can modulate a number of diseases by inducing epigenetic alteration through DNA methylation, histone modification, and non-coding RNA-associated gene silencing. Short-chain fatty acids, especially butyrate, are well-known histone deacetylases inhibitors. Similarly, other microbial metabolites such as folate, choline, and trimethylamine-N-oxide also regulate epigenetics mechanisms. Furthermore, various studies have revealed the potential role of microbiome dysbiosis and epigenetics in the pathophysiology of depression. Hence, in this review, we have highlighted the role of gut dysbiosis in epigenetic regulation, causal interaction between host epigenetic modification and the gut microbiome in depression and suggest microbiome and epigenome as a possible target for diagnosis, prevention, and treatment of depression.
The emerging role of miR-20b in human cancer and other disorders: Pathophysiology and therapeutic implications
Authors: Khalilian Sheyda , Abedinlou Hamid , Hussen Bashdar Mahmud , Imani Seyedeh Zahra Hosseini , Ghafouri-Fard Soudeh
Published: December 2022

miR-20b is a microRNA with diverse and somehow contradictory roles in the pathogenesis of human disorders, especially cancers. It has been known to be a tumor suppressor in colon cancer, renal cell carcinoma, prostate cancer, osteosarcoma and papillary thyroid cancer. In lung cancer and breast cancers, both tumor suppressor and oncogenic effects have been identified for this miRNA. Finally, in T cell leukemia, hepatocellular carcinoma, esophageal squamous cell carcinoma and cervical and gastric cancers, miR-20b is regarded as an oncogenic miRNA. In several types of cancer, dysregulation of miR-20b has been recognized as a predictive marker for patients’ survival. Dysregulation of miR-20b has also been recognized in Alzheimer’s disease, diabetic retinopathy, myocardial ischemia/infarction, chronic hepatitis B and multiple sclerosis. In the current review, we have summarized the miR-20b targets and related cellular processes. We have also provided a review of participation of this miRNA in different human disorders.
Plugging efficiency of flaky and fibrous lost circulation materials in different carrier fluid systems
Authors: Alhaidari Saleh A. , Alarifi Sulaiman A. , Bahamdan Abdulaziz
Published: December 2022

Lost circulation is one of the most significant contributors to wellbore instability and causes an increase in drilling operation costs. It is also a major contributor to the nonproductive time and must be minimized for improved economic and operational performance. The objective of this research is to provide tools and information about specific loss circulation management techniques that drillers can use to minimize lost circulation. This study involves comprehensive approaches to test the plugging efficiency of three different lost circulation materials (LCMs) from two groups of materials (flaky and fibrous). It also highlights the carrier fluids (drilling fluids) and the determination of the optimum drilling fluid properties. Different fracture sizes and the effect of the various LCM are analyzed. The impact of LCM’s shape, size, and physical and chemical properties along with the fracture sizes is discussed. Examining the particle size distribution before and after mixing with the fluids shows the capability of the materials in plugging the fracture while maintaining the minimum porosity and permeability of the plug. It also helps to strengthen the fracture gradient of the formation by knowing the actual particle sizes. The primary objective of this work is to precisely study and analyze these factors on the three LCMs along with different carrier fluids to investigate their plugging efficiency and potentially resolve or minimize the severity of the lost circulation problem.
An optically pumped atomic clock based on a continuous slow cesium beam
Authors: Xie Weibin , Wang Qing , He Xuan , Yuan Zhichao , Fang Shengwei , Chen Nan , Xiong Zezheng , Zhang Jun’an , Qi Xianghui , Li Shaoguang , Chen Xuzong
Published: December 2022

Herein, we report the scheme of an optically pumped atomic clock based on a cold cesium atomic beam source. We propose the laser system and physical mechanism of this atomic clock, wherein the atomic beam travels in an upper parabolic trajectory, thereby eliminating the light shift effect. In the experiments, when the length of the free evolution region was 167 mm, the line width of the Ramsey fringe was 37 Hz. When the expected signal-to-noise ratio of the Ramsey fringe that can be achieved is 36,000, the expected short-term frequency stability is about 3.6 × 10–14/√τ, which is significantly higher than that of a conventional optically pumped cesium clock of similar volume.
Factors associated with pharmacological and psychotherapy treatments adherence in patients with borderline personality disorder
Authors: Mirhaj Mohammadabadi Motahareh Sadat , Mohammadsadeghi Homa , Eftekhar Adrebili Mehrdad , Partovi Kolour Zahra , Kashaninasab Fatemeh , Rashedi Vahid , Shalbafan Mohammadreza
Published: December 2022

Background

Borderline personality disorder is a major mental illness characterized by sustained relationship instability, impulsive behavior, and intense affects. Adherence is a complex behavior, from minor refusals to abandonment of treatment, which can be affected by various factors. Therefore, the present study aimed to investigate the factors affecting pharmacological and psychotherapy adherence, patients' attitude toward medication, and assessing medication and treatment adherence in patients with borderline personality disorder referred to an outpatient referral clinic in Tehran, Iran.

Methods

The study was a cross-sectional study. The files of patients with borderline personality disorder referred to the outpatient clinic of the Tehran Psychiatric Institute were reviewed as the first step. Data were collected using the Drug Attitude Inventory-10 (DAI-10) questionnaire and a questionnaire to determine the attitude of patients toward pharmacological and psychotherapy treatment as well as therapeutic adherence. After collecting data, patients' therapeutic adherence was divided into poor, partial, and good compliance.

Results

Ninety-four patients were involved in the study, and fifty-four were women. Findings of DAI showed that 54 (57.4%) participants had negative attitudes toward medication, while 38 (40.4%) participants showed a negative attitude toward psychotherapy treatment. Additionally, the percentage of patients with good psychotherapy adherence (44.7%) was higher than that of patients with good medication adherence (31.9%). The most common reasons for discontinuation of treatment were medication side effects (53.1%), dissatisfaction with the therapist (40.3%), and then fear of medication dependence (40%). Patients with higher education levels and a positive history of hospitalization in a psychiatric ward had better adherence to psychotherapy (P < 0.05).

Conclusion

Results of the current study show that attitude toward psychotherapy is more favorable than pharmacotherapy among patients with BPD. The rationale may be that medications are mainly prescribed for comorbid conditions and do not have substantial effects on the BPD symptoms, resulting in low medication adherence.
Bench surgery with autotransplantation for bilateral Wilms tumor—A feasible technique for renal sinus invasion
Authors: Gao Pengfei , Li Jun , Chen Huadong , Wu Wenrui , Liu Longshan , Jiang Hong , Xu Lingling , Wu Chenglin , Fu Qian , Liu Juncheng , Wang Changxi
Published: December 2022

Purpose

Bilateral Wilms tumor (BWT) with renal sinus invasion requires extremely difficult surgical care. This study presents an alternative strategy for tumor removal while at the same time preserving the renal parenchyma.

Materials and methods

In total, 9 cases of synchronous BWT were admitted to our hospital between May 2016 to Aug 2020. We retrospectively reviewed the clinical data, surgical technique, and functional and oncological outcomes of these cases.

Results

The 9 cases included 3 males and 6 females, with a median age of 12 months at surgery (range 7–40). A total of 14 kidney units had renal sinus invasion (77.8%), whereas multifocal neoplasms were observed in 7 units (38.9%). The local stage distribution revealed 1 kidney with stage I, 10 kidneys with stage II, and 7 kidneys with stage III. Nephron-sparing surgery was performed on 15 kidney units (83.3%), among which 13 (72.2%) underwent bench surgery with autotransplantation (BS-AT), whereas 2 (11.1%) were subjected to tumor enucleation in vivo. Urinary leakage was the most prevalent postoperative complication. We observed negative margins. During the mean follow-up of 28.4 months, 2 patients (22.2%) succumbed from sepsis and renal failure, respectively, whereas the other 7 (77.8%) survived without recurrence. Survivors experienced an estimated glomerular filtration rate of 81 ± 15.4 ml/(min × 1.73 m2). The endpoint renal volume of 9 renal units receiving BS-AT significantly increased (P = 0.02).

Conclusions

In summary, the surgical management of bilateral Wilms tumor requires meticulous operative approach and technique. Besides, BS-AT provides a viable alternative to nephron-sparing surgery for BWT patients with renal sinus invasion.
Behavior-Aware Aggregation of Distributed Energy Resources for Risk-Aware Operational Scheduling of Distribution Systems
Authors: He Mingyue , Soltani Zahra , Khorsand Mojdeh , Dock Aaron , Malaty Patrick , Esmaili Masoud
Published: December 2022

Recently there has been a considerable increase in the penetration level of distributed energy resources (DERs) due to various factors, such as the increasing affordability of these resources, the global movement towards sustainable energy, and the energy democracy movement. However, the uncertainty and variability of DERs introduce new challenges for power system operations. Advanced techniques that account for the characteristics of DERs, i.e., their intermittency and human-in-the-loop factors, are essential to improving distribution system operations. This paper proposes a behavior-aware approach to analyze and aggregate prosumers’ participation in demand response (DR) programs. A convexified AC optimal power flow (ACOPF) via a second-order cone programming (SOCP) technique is used for system scheduling with DERs. A chance-constrained framework for the system operation is constructed as an iterative two-stage algorithm that can integrate loads, DERs’ uncertainty, and SOCP-based ACOPF into one framework to manage the violation probability of the distribution system’s security limits. The benefits of the analyzed prosumers’ behaviors are shown in this paper by comparing the optimal system scheduling with socially aware and non-socially aware approaches. The case study illustrates that the socially aware approach within the chance-constrained framework can utilize up to 43% more PV generation and improve the reliability and operation of distribution systems.
Influence of Copper-Based Fillers on Structural and Mechanical Properties of Polylactic Acid Composites
Authors: Mastalygina Elena Evgenyevna , Olkhov Anatoly Aleksandrovich , Vorontsov Nikolay Vladimirovich , Kiselev Nikolay Vitalievich , Khaidarov Timur Bakhtierovich , Khaydarov Bekzod Bakhtierovich , Kolesnikov Evgeniy Aleksandrovich , Burmistrov Igor Nikolaevich
Published: December 2022

The importance of promising composites in modern materials science is constantly increasing. The use of various fillers or additives is associated with their influence not only on the defining properties of the composite, but also on physical and mechanical characteristics of the material. In this case, the distribution of the additive and its wetting with a polymer play an important role. The problem highlighted in this article is the influence of different copper-containing fillers (copper (II) sulphate powder, micro-sized copper (II) oxide powder, and nano-structured copper (II) oxide-based hollow microspheres) on the technological and physical–mechanical properties of the composites based on polylactic acid (PLA). The hollow microspheres of copper (II) oxide have been obtained by ultrasonic spray atomization via pyrolysis of copper (II) nitrate. The structure of the copper-based additives has been studied using X-ray diffraction, scanning electron microscopy, and static light scattering. For the PLA-composites, scanning electron microscopy, differential scanning calorimetry, stress-strain properties testing, and density analysis have been performed. The plasticizing effect of polycaprolactone and polyethylene glycol has been studied for the highly filled PLA/CuSO4 composite. The samples of PLA with over 2 wt.% of CuO microspheres have a full volume-filling and percolation structure of the additive’s particles. Due to the regular spherical shape of the particles and a lower specific volume, CuO hollow microspheres are uniformly distributed in the PLA matrix acting as a structuring and reinforcing modifier. Differential scanning analysis showed heterogeneous crystallization on CuO particles with an increase in the degree of crystallinity and the melting point of the polymer. It has been shown that the pre-masterbatching technology and adding plasticizers to obtain PLA composites contribute minimizing defects and enhance mechanical properties.
Docencia virtual y satisfacción estudiantil en tiempos de pandemia
Authors: Alvarado Acuña Georgina Rosa , Ponce Pardo John Eloy , Hernández Guerra Reyna Emperatriz , Chiri Saravia Paulo Cesar
Published: December 2022

El avance de la instrucción en línea en las universidades es una realidad para el desarrollo de las clases en tiempos de COVID-19, esto forzó, rápidamente a tener que estudiar a través de diversas plataformas virtuales y esto llevó los profesores a encarar nuevos desafíos, algunos de estos desafíos se analizarán en esta investigación. El objetivo fue determinar la relación entre la docencia virtual y la satisfacción estudiantil en tiempos de pandemia en el 2022. Se realizó un estudio de diseño correlacional de corte transversal bajo un análisis cuantitativo con una muestra de 100 estudiantes de una universidad pública de Lima. El instrumento empleado fue la escala de likert, el resultado fue que el 57% percibe que la docencia virtual se desarrolla en un nivel regular y el 15% percibe un nivel malo. Se concluyó que la docencia virtual en una universidad nacional de Lima se relaciona directamente con la satisfacción de los alumnos; es decir que, si la docencia virtual mejora los estudiantes se sentirán mejor, lo que genera una mejor motivación y rendimiento. El estudiantado aprecia el empleo de métodos activos y de herramientas TIC
“Refligerante” e “sargadinhos”: rotacismo e grafias não-convencionais de alunos do sexto ano do Ensino Fundamental em Ponta Grossa (PR)
Authors: Do Carmo Márcia Cristina , Bugai Tayná Maria Coelho , Dias Jheniffer Amanda
Published: December 2022

O presente artigo analisa grafias não-convencionais presentes em textos de estudantes do sexto ano do Ensino Fundamental de duas escolas públicas localizadas no município paranaense de Ponta Grossa. Especificamente, são analisadas ocorrências de trocas entre os grafemas  e , as quais podem ser associadas ao fenômeno fonético-fonológico denominado rotacismo, como em devorver (para devolver) e anuncial (para anunciar). Como fundamentação teórica, segue-se o Modo heterogêneo de constituição da escrita (Corrêa, 2004). A partir de 201 produções textuais (Mendes, 2013), foram levantadas 11 ocorrências, das quais sete (63,6%) correspondem ao uso do grafema  quando convencionado , como em pírulas (para pílulas), e quatro (36,4%) ao uso de  quando a convenção prescreve , como em compral (para comprar). Esses resultados evidenciam a circulação dialógica dos escreventes pelas práticas sociais do oral/falado e do letrado/escrito (Corrêa, 2004).
"Como fala?": construindo repertórios linguísticos em contexto de mobilidade estudantil transnacional
Authors: Krüger Dias Ana Luiza
Published: December 2022

Este artigo pretende discutir experiências e práticas situadas da globalização contemporânea, analisando a construção de repertórios linguísticos na interação com estudantes em mobilidade transnacional numa universidade do centro-oeste brasileiro. Para tanto, parto da noção de repertório enquanto conjunto de recursos semióticos fragmentados (BLOMMAERT; BACKUS, 2011) que indiciam itinerários de vida, numa análise crítica de contextos superdiversos (VERTOVEC, 2007) que desafia a concepção de língua enquanto sistema de fronteiras nitidamente demarcadas. A análise apresenta a construção de repertórios emergindo na/da própria interação, num deslocamento do repertório enquanto inventário de recursos para o processo de (re)construção de práticas linguísticas e o que elas performam em termos de relações de poder. Os dados analisados foram gerados em 2017 numa etnografia multissituada de abordagem biográfica (KEATING, 2015), por meio de duas oficinas da linha da vida com grupos de estudantes migrantes, oportunizando a criação de narrativas multimodais orais e escritas sobre suas trajetórias. O material empírico evidencia uma construção performativa de repertórios ao mesmo tempo situada, pois combina e depende dos recursos disponíveis e compartilháveis durante a interação, e negociada, pois emerge das/nas disputas e colaborações que estabelecem sentidos comuns para aquilo que se diz. A análise também mostra como essa construção aponta pertencimentos e diferenças num espaço social marcado pela distribuição desigual de recursos. Assim, ao invés de representar um ponto de acumulação da história de vida de um indivíduo, o repertório emerge como “espaço de potencialidades e restrições” (BUSCH, 2012, 2015, 2017), indicando como usos criativos da língua intersectam com padrões normativos ligados de regimes de diferenciação e exclusão. Trata-se de um olhar em direção à potencialidade do trabalho etnográfico capaz de apreender a construção de sentidos locais para experiências não-locais de mobilidade, num mundo em constante transformação e atravessado por hierarquizações ideologicamente informadas.

Palavras-chave: repertórios linguísticos; migração estudantil; linha da vida.
conhecimentos linguísticos sobre o português (brasileiro) e a formação de professores de segunda língua
Authors: Figueiredo Silva Maria Cristina
Published: December 2022

Este texto pretende discutir a contribuição que a linguística gerativa pode trazer para o ensino de português brasileiro como segunda língua; em particular, dado o conhecimento que a linguística construiu nos últimos cinquenta anos sobre as mudanças pelas quais passou (e ainda está passando) a variedade brasileira do português, parece interessante trazer essas informações para auxiliar o professor de português L2 na tarefa de explicar certas particularidades dessa variedade a seus alunos. Neste trabalho, vamos nos debruçar sobre o problema da descrição e do ensino da expressão de posse no português brasileiro, apresentando uma unidade didática que poderia ser implementada com a finalidade de abordar esse tópico gramatical.
Da fábula escrita à fábula teatralizada: um itinerário para o ensino do oral
Authors: Dolz Joaquim , Lima Gustavo , Zani Juliana
Published: December 2022

RESUMO: Dando continuidade aos estudos anteriores (DOLZ; LIMA; ZANI, 2020 e 2021), o presente artigo se propõe a apresentar um dispositivo didático para o ensino do gênero fábula teatralizada como desdobramento de um minicurso voltado à formação continuada de professores de Língua Portuguesa. Para isso, retomamos, em um primeiro momento, os modelos didáticos dos gêneros fábula e fábula teatralizada utilizados no minicurso e, na sequência, abordamos o dispositivo didático contrastando duas modalidades: 1) sequência didática para o ensino da fábula; 2) itinerário para o ensino da fábula teatralizada. Didaticamente, a partir da proposta original de sequência didática (DOLZ; NOVERRAZ e SCHNEUWLY, 2004), apresentamos um itinerário, um novo dispositivo didático, por meio da inserção de atividades metacognitivas (COLOGNESI & DOLZ, 2017) e de retextualização (MARCUSCHI, 2001), o que permite uma maior articulação entre os eixos da escrita, da oralidade e da leitura. Outrossim, incorporamos dimensões que contemplam elementos da linguagem oral e cênica, tais como os paralinguísticos, os cinésicos e os proxêmicos, os quais requerem a mobilização de capacidades de linguagem multimodais e multissemióticas.

 

Palavras-chave: Fábula. Gênero de texto. Itinerário. Oralidade. Sequência didática. Multimodalidade.
As capacidades de linguagem no trabalho proposto com o gênero debate na BNCC para os anos finais do Ensino Fundamental
Authors: Jacob Ana , Guimarães Maria de Fátima
Published: December 2022

Neste artigo, objetiva-se discorrer sobre as capacidades de linguagem possíveis de serem desenvolvidas com o que é proposto na BNCC para o ensino do gênero oral debate nos anos finais do Ensino Fundamental, já que o consideramos como um objeto de conhecimento capaz de promover importantes aprendizagens como, por exemplo, o exercício de práticas democráticas e o diálogo. O Interacionismo Sociodiscursivo e a didática das línguas genebrina são os aportes teórico-metodológicos que recorremos para nossas discussões. Com as análises, foi possível concluir que as capacidades de ação, discursiva e linguístico-discursivas são levadas em consideração na BNCC, entretanto, a multimodal e multissemiótica não, comprometendo, desse modo, tanto o ensino como a aprendizagem do gênero.
Da seleção de informação à comunicação oral: uma experiência realizada com uma turma do 2.º ano de escolaridade
Authors: Oliveira Pinto Mariana , Gil Maria Beatriz
Published: December 2022

Em contexto escolar, aceita-se habitualmente que o oral é algo que está reservado à família e ao meio em que a criança está inserida e que à escola competirá, sobretudo, ensinar a ler e a escrever (CASSANY et al., 2007). No entanto, nem todas as formas de comunicação oral são espontâneas e informais, requerendo, muitas delas, preparação e elaboração, sendo por isso essencial o seu ensino explícito. Partindo deste pressuposto, este artigo tem como objetivo apresentar uma experiência realizada numa escola portuguesa do 1.º ciclo do concelho de Setúbal, que envolveu 17 alunos de uma turma do 2.º ano da escolaridade. Definido o tema a pesquisar, foi proposta a planificação e apresentação de uma exposição oral, tendo como suporte o póster. As evidências recolhidas permitem concluir que o processo foi importante para o desempenho final dos alunos e que estes demonstraram ter adquirido algumas das competências básicas essenciais para um bom desempenho oral.
Práticas declaradas do ensino da oralidade no 1.º ciclo do Ensino Básico, em Portugal – alguns resultados da aplicação de um questionário, num estudo exploratório
Authors: Graça Luciana de Almeida
Published: December 2022

Este nosso estudo exploratório analisou as práticas declaradas sobre o ensino da oralidade no 1.º ciclo do Ensino Básico, em Portugal. Como metodologia, utilizámos um questionário, mormente aberto, dirigido a professores deste ciclo de ensino, de molde a explorar não só as referidas práticas como também as principais dificuldades enfrentadas e as necessidades sentidas. Apesar da impossibilidade de procedermos a generalizações, os resultados obtidos não deixam de demonstrar a existência de determinados avanços nas práticas, e nas respetivas conceções implícitas, declaradas pelos docentes, embora seja também evidente a existência de dados que demonstrem haver ainda consideráveis esforços a ser empreendidos, em prol da construção de uma didática da oralidade, mais presente, em sala de aula.
Efeitos da suplementação com resveratrol no humor: uma revisão sistemática
Authors: Saul Carine Fabiana , Rosa da Mata Isabella , Krüger Peres Kathleen , Slongo Faccioli Larissa , Dal Bosco Simone Morelo
Published: December 2022

Introdução. O resveratrol é um estilbeno encontrado em alguns alimentos. Os efeitos desse polifenol estão sendo cada vez mais estudados, devido ao seu potencial antioxidante e preventivo contra doenças neurodegenerativas. Além disso, sugere-se que a suplementação com resveratrol pode causar um efeito benéfico no humor. Objetivo. Esta revisão tem como objetivo avaliar ensaios clínicos randomizados que analisaram os efeitos do resveratrol no humor, por meio de suplementação oral. Método. Foram identificados estudos publicados até 20 de novembro de 2020 nas bases de dados PubMed, Web of Science e Scopus. Os critérios de inclusão foram: o termo resveratrol incluído no título, resumo ou palavra-chave; artigos em adultos saudáveis ​​ou mulheres saudáveis ​​no período pós-menopausa; tratamento apenas com suplementos orais. Esta revisão sistemática foi registrada no PROSPERO (CRD42020205072). A análise das evidências foi realizada pela ferramenta de avaliação do risco de viés (RoB 2.0). Resultados. Um total de 5 estudos envolvendo 339 participantes foram incluídos. Um estudo demonstrou resultados significantes, um na redução da fadiga, um na redução da ansiedade e dois no aumento do bem-estar geral. Nesses casos, o resveratrol demonstrou melhorar certos aspectos dos estados de humor; no entanto, a concordância entre os estudos é limitada. Conclusão. Com base nos resultados desta revisão, a literatura atual não fornece suporte suficiente para correlacionar a suplementação de resveratrol com melhora no humor, pesquisas com um tamanho amostral maior e alta qualidade metodológica são necessárias para medir a eficácia legítima do resveratrol no humor.
Highly Accurate Spam Detection with the Help of Feature Selection and Data Transformation
Authors: Takcı Hidayet , Nusrat Fatema
Published: December 2022

The amount of spam is increasing rapidly while the popularity of emails is increasing. This situation has led to the need to filter spam emails. To date, many knowledge-based, learning-based, and clustering-based methods have been developed for filtering spam emails. In this study, machine-learning-based spam detection was targeted, and C4.5, ID3, RndTree, C-Support Vector Classification (C-SVC), and Naïve Bayes algorithms were used for email spam detection. In addition, feature selection and data transformation methods were used to increase spam detection success. Experiments were performed on the UC Irvine Machine Learning Repository (UCI) spambase dataset, and the results were compared for accuracy, Receiver Operating Characteristic (ROC) analysis, and classification speed. According to the accuracy comparison, the C-SVC algorithm gave the highest accuracy with 93.13%, followed by the RndTree algorithm. According to the ROC analysis, the RndTree algorithm gave the best Area Under Curve (AUC) value of 0.999, while the C4.5 algorithm gave the second-best result. The most successful methods in terms of classification speed are Naïve Bayes and RndTree algorithms. In the experiments, it was seen that feature selection and data transformation methods increased spam detection success. The binary transformation that increased the classification success the most and the feature selection method was forward selection.
Uso da Ivermectina como medida profilática para COVID-19
Authors: Porfirio Beatriz Alarcon , Bolsoni Ludmila Lopes Maciel , Barros Marília de Moraes , Poliseli Pietra Giovana
Published: December 2022

Introdução: A doença do coronavírus 2019 (COVID-19) chegou no Brasil em fevereiro de 2020 e desde então vem sendo uma preocupação mundial a busca por tratamentos. Nesta busca, muitas pessoas optam por tratamentos profiláticos para combate ao novo coronavírus. A ivermectina, apresenta-se como uma ótima candidata para ser reaproveitada, por ser um agente antiparasitário de amplo espectro, demonstrando ter atividade antiviral contra inúmeras infecções virais in vitro. O objetivo deste estudo é analisar o uso da ivermectina como preventiva para Covid-19. Os resultados deste trabalho foram obtidos por meio de questionário através do Googleforms, onde foram elaboradas perguntas sociodemográficas e sobre o uso preventivo da medicação. Metodologia: A partir do levantamento, as informações foram compiladas, analisadas e descritas em frequência absoluta e relativa, a fim de realizar análise estatísticas, correlações e comparações com os estudos apresentados. A pesquisa passou por aprovação pelo Comitê de Ética em Pesquisa (CEP) da instituição, cumprindo com todos os príncipios éticos de pesquisa com seres humanos. Os resultados reuniram resposta de 163 participantes, sendo o sexo feminino predominante, a principal faixa etária dos 18 aos 28 anos, e 65% dos participantes testaram positivo para Covid-19 com a coriza, a sintomatologia mais frequente. Outras informações como mudança em seu estado de saúde na pandemia, comorbidades previas, quais medicações foram utilizadas para prevenção e tratamento da Covid-19, também foram extraídas. Conclusão: Embora este estudo tenha limitações, conclui-se sobre que uso da ivermectina durante a pandemia foi um exemplo de irracionalidade e manipulação de fontes não científicas.
Construção de um kit didático de baixo custo para o ensino de Física
Authors: Rios Luiz Daniel Alves , Rios Luana Vasconcelos Soares , Costa Francisco José da , Cordeiro José Gerson , Nascimento Francisco Tiago Souza do
Published: December 2022

A física é uma disciplina cientifica que tenta entender o universo no qual estamos inseridos. Para obter essa compreensão, os físicos questionam sistematicamente a natureza por meio de teorias e experimentos. Esses experimentos são projetados para desafiar hipóteses existentes e fornecer pistas para teorias mais elaboradas. No entanto, os experimentos não são apenas essenciais para expandir nosso conhecimento do universo, mas desempenham um papel fundamental no ensino de física. O uso de experiências permitem que os alunos observem fenômenos, testem hipóteses e apliquem sua compreensão do mundo físico. Este estudo visa uma integração entre a teoria e a prática do ensino de Física aplicado em sala de aula.  O propósito é tornar as aulas de Física mais atrativas  e agradáveis, com a participação efetiva dos alunos, estabelecendo uma nova prática na relação ensino-aprendizagem. Além disso, devido à grande carência de recursos para o ensino de ciências em geral, e em especial para o ensino de Física, este projeto possibilitará aos professores construírem um kit didático de inventos sobre eletromagnetismo com materiais de baixíssimo custo, que têm por finalidade a otimização dos conceitos envolvidos, auxiliando na busca por soluções aos problemas de aprendizagem.
Aspectos metodológicos para la estimación (actualización) de la matriz de insumo-producto de México 2014 (AMIPM_2014)
Authors: Benítez Santiago Marquina , Romero Octaviano Juarez
Published: December 2022

Una matriz de insumo-producto (MIP) es un esquema contable en el cual se representa el flujo de los bienes y servicios entre los distintos agentes que participan en la actividad económica, ya sea como productores de bienes y servicios o como consumidores. La MIP de un país, estado, municipio o región determinada es uno de los instrumentos más útiles para el análisis global y, a su vez, pormenorizado por rama productiva del  contexto económico. Una limitante muy significativa de esta herramienta estadística corresponde a su disponibilidad en el espacio y tiempo. La MIP es posible actualizarla a un año de referencia mediante la producción obtenida, la información específica de demanda y consumos intermedios y con el  empleo de los coeficientes y multiplicadores de un año base. Para la actualización de la MIP existe el método directo y los métodos indirectos. Los métodos indirectos son los menos costosos en términos económicos, uno  de estos es el método RAS. En el presente trabajo se hace una revisión de los fundamentos y supuestos del método RAS en su versión básica, el cual es utilizado para la actualización de la Matriz de Insumo-producto de México para el año de 2014, tomando como punto de partida la MIP de México de 2008. Para realizar la actualización de la MIP de 2014 se programa el método RAS en el paquete estadístico R.
Identificação de índices de precipitação para previsão mensal de vazão no posto de Tucuruí – bacia do Tocantins
Authors: De Souza Amanda Rodrigues , Cardoso Andrea de Oliveira , Silva Willians Bini
Published: December 2022

Devido a relevância da Bacia Hidrográfica do Rio Tocantins para o abastecimento, geração de energia e desenvolvimento no entorno da bacia é importante o aprimoramento da predição de vazão. Neste sentido, este estudo explora a relações chuva-vazão, visando identificar índices de precipitação úteis na previsão de vazão mensal no posto de Tucuruí. Para tanto, foram aplicadas diversas análises aos valores mensais de vazão natural e precipitação de 1980 a 2020, que permitiram: caracterizar seis regiões pluviométricas homogêneas, através de análise de cluster; comparar os padrões sazonais de chuva e vazão, por médias de longo prazo; classificar os tipos de eventos de vazão, destacando os extremos, através de quantis; relacionar índices de precipitação anual móvel de cada região com a vazão mensal, por correlação simples; e estimar vazão mensal, por modelos de regressão linear múltipla, usando índices de precipitação como preditores. Os resultados destacaram os índices de acumulado de chuva e de limiares quantílicos secos e chuvosos como os melhores preditores. Os modelos indicam a potencialidade dos índices de precipitação para a previsibilidade de vazão mensal, destacando a precipitação ocorrida no extremo leste e próximo ao posto de Tucuruí para a predição da vazão.
Pendampingan Pelatihan Pemasaran dan Pembukuan Produk UMKM Tahu GO Yogyakarta
Authors: Adhivinna Vidya Vitta , Diansari Rani Eka , Fachrunnisa Zidni Husnia
Published: December 2022

ABSTRACT

The service is held at UMKM Tahu Go Yogyakarta which is engaged in the culinary field. Based on the results of business location surveys and interviews, the problems faced by Tahu Go's business partners are decreased income caused by a lack of interest from consumers from consumers during the pandemic and bookkeeping is still done manually. The output that we have produced in this activity is that we help UMKM Tahu Go in promoting products on various social media platforms such as YouTube, WhatsApp, TikTok and MSME Tahu Go have used an online-based accounting application that we recommend, namely Journal ID.

Keywords : Marketing, Bookkeeping, Micro Small and Medium Enterprises (MSME)

 

ABSTRAK

Pengabdian dilakukan UMKM Tahu Go Yogyakarta yang bergerak dibidang kuliner, Berdasarkan hasil survei lokasi usaha dan wawancara, permasalahan yang dihadapi oleh mitra usaha Tahu Go yaitu penurunan pendapatan yang disebabkan oleh kurangnya minat pembeli dari konsumen dimasa pandemi dan pembukuan yang masih dilakukan secara manual. Luaran yang telah kami hasilkan dalam kegiatan ini adalah kami turut membantu UMKM Tahu Go dalam melakukan promosi produk di berbagai platform media sosial seperti YouTube, Whatsapp, TikTok dan UMKM Tahu Go telah menggunakan aplikasi akuntansi berbasis online yang kami sarankan yaitu Jurnal ID.

Kata kunci : Pamasaran, Pembukuan, Usaha Mikro Kecil dan Menengah (UMKM)
Edukasi Penyusunan Laporan Keuangan UMKM Pada Usaha Sokasi di Kabupaten Buleleng
Authors: Solikin Akhmad , Marlina Luh Sri , Dita Prabhayanti Desak Putu
Published: December 2022

SMEs entrepreneurs could use gadget to promote their businesses, to communicate with consumers and suppliers, and to sale. In addition, the SMEs entrepreneurs could also utilize their gadgets to compile financial reports by using free applications available in the market. This article reports a community empowerment activity in order to help SMEs assemble financial report by using Akuntansi UKM application. A partner for the community empowerment activity is an entrepreneur of sokasi craft which is located in Buleleng District, Bali Province. For the education activity, a poster was created to help explain benefits and importance of financing reports, types of financial reports, and separation between private and business money. More detailed explanation for accounting processes is presented in a video which is then uploaded to social media.
Sosialisasi Model Lokasi Evakuasi Untuk Mitigasi Gempa Bumi Di Siten, Desa Sumbermulyo, Kapanewon Bambanglipuro, Kabupaten Bantul
Authors: Fivry Wellda Maulana  , Rakhman Arie Noor
Published: December 2022

Community service activities were carried out in Siten, Sumbermulyo Village, Kapanewon Bambanglipuro, Bantul Regency. The counseling was attended by members of the Family Empowerment and Welfare (PKK) group. Since the 2006 great earthquake, the public has been educated on earthquake response. However, they do not know the relationship between geological features and the value of local wisdom. Earthquakes of small scale and intensity are still being felt. Through service activities, the participants understand the emergency location planning model after the earthquake disaster. The introduction of local wisdom values ​​in the existence of several places becomes a means of educating the existence of geological features in the earthquake disaster area. Some of these places include springs, historical heritage sites, and isolated hill of Gunung Cilik. Based on the optimization of the results of previous research on geological features and Google Earth, an earthquake evacuation location is recommended. Evacuation locations are directed at limestone hills, 1 km to the west from the service location. Google Map can be used by participants to identify the evacuation route. In the discussion, a simulation of the evacuation was proposed to be carried out