bluuebunny/crossref_metadata_2025_split huggingface dataset:
Do lugar ao território epistemológico
Authors: Maia Humberto Cordeiro Araujo 
Published: June 2024

O currículo dos cursos de licenciatura não reserva, quanto ao componente curricular ou às práticas de estágio, um lugar de relevância à modalidade escolar que recebe jovens e adultos (Educação de Jovens e Adultos – EJA). Partindo dessa premissa, e considerando o contexto de formação e de ensino de Geografia, neste artigo são problematizados o lugar e o território epistemológico da EJA nos currículos dos cursos de Licenciatura em Geografia de instituições públicas, estaduais e federais, com oferta contínua na Bahia. Para tanto, ancorados em uma abordagem qualitativa, do tipo estudo de caso, foram adotados estes procedimentos metodológicos: pesquisa bibliográfica; elaboração e aplicação de formulário eletrônico direcionado aos colegiados dos cursos; e análise de projetos curriculares, pareceres e resoluções. Com base na análise dos dados coletados, foi possível constatar que o avanço neoliberal no contexto educacional, em relação à formação de professores, toma proporções preocupantes, principalmente pela gritante ausência das demandas da EJA no percurso formativo dos graduandos.
Reflexões teóricas sobre planejamento urbano e cidadania
Authors: De Carvalho Neto Francisco Manoel , Antonello Ideni Terezinha , Veiga Léia Aparecida 
Published: June 2024

Com o presente trabalho objetiva-se discutir as bases teóricas do planejamento urbano associado à participação popular e o exercício da cidadania, fatores estes que são essenciais para a produção de um espaço urbano menos desigual, no qual prevaleça a justiça social. Para tanto optou-se por uma abordagem qualitativa, com levantamento bibliográfico e discussão teórica pautada em autores que se dedicam a essa problemática, como Souza (2002, 2006); Lefebvre (2001, 2019); Freire (1967, 1983, 2017) entre outros. Entende-se que o planejamento remete à ideia de futuro e a gestão urbana, tem a perspectiva de que gerir está vinculada ao presente, logo, gerir significa administrar o que foi planejamento em outro momento mediante a participação da sociedade. As conclusões desta pesquisa sinalizam que ambos devem estar fundamentados na participação democrática, para o efetivo exercício da cidadania por parte dos sujeitos sociais que produzem e vivenciam o espaço urbano.
Assessment of the effect of mixing polystyrene (PS) with sawdust (SD) on copyrolysis products
Authors: A. Ali Abdel Hafiz , Waheed Seddik S. , Rabia Salah M. , Ghazaly Nouby M. 
Published: June 2024

The co-pyrolysis process between biomass and solid waste especially plastics has attracted significant attention in research studies as a means to enhance both the quantity and quality of bio-oil derived from biomass decomposition. In this research paper, the PS/SD co-pyrolysis was carried out for six different concentrations ranging from 0% to 100%, with increments of 20% PS, inside a small laboratory reactor at 450 C and a heating rate (HR) of 20.5 oC min-1. Results showed that an increase in the proportion of PS in the blend resulted in a higher bio-oil outcome. The highest bio-oil yield was recorded at the 80PSSD blend, indicating that co-pyrolysis had a positive effect on oil production in all mixtures. The most significant positive impact was observed at the 20PSSD blend, reaching [+11.54]. Conversely, gas production showed a negative effect, with gas quantities lower than expected for all mixtures, and the most significant negative impact was at 20PSSD, with a decrease of [-11.8]. As for char outcome, there was a minimal increase in its quantity, with the highest positive impact of charcoal observed at 80PSSD, reaching [+3.44]. Consequently, it can be observed that the quantity of char produced is not significantly affected by the co-blending process.
Overview of corrosion behaviour of ceramic materials in molten salt environments
Authors: Ndukwe Agha Inya , Okolo Chukwuma Daniel , Nwadirichi Benjamin Uchenna 
Published: June 2024

This study reviewed previous studies between the years 2015 and 2021 on how ceramic materials degraded in the presence of molten salt environments. The processes of corrosion resistance of various ceramic compositions subjected to various molten salt compositions and temperatures were also scrutinized. The results offer important new insights into the variables affecting ceramics' corrosion behaviour and the production of corrosion products. The reported result reveals that the ceramic material with the composition (Sm0.5Sc0.5)2Zr2O7 performed better than that of Sm2Zr2O7 in terms of hot corrosion resistance in molten salt (V2O5 + Na2SO4). It has also been reported that corrosion behaviour is influenced by particle size. Notably, zirconia (n-YSZ) with nanoscale grain sizes was more susceptible to hot corrosion, which was explained by increased specific surface areas. On the other hand, sintering and additives have been found to enhance corrosion resistance. The Y-Y2Si2O7 ceramic's resistance to corrosion in (V2O5 + Na2SO4) molten salt was enhanced by the addition of alumina. The results of these investigations help us understand how corrosion works and what influences ceramic materials' susceptibility to deterioration in molten salt media. This information can direct the creation of more corrosive-resistant ceramic materials for use in high-temperature environments or molten salt-based energy systems, among other corrosive uses.
A percepção de sustentabilidade do servidor público: uma análise em uma secretaria no Estado do Pará
Authors: Araujo Dinaldo do Nascimento , Cordeiro Antônio Maria de Lima 
Published: June 2024

A partir do momento que a cidade de Belém, no Estado do Pará, foi anunciada como sede da COP 30 a ser realizada em novembro de 2025, se deu ênfase sobre o tema sustentabilidade no governo do Pará. Aproveitando o contexto atual, surge a questão problema da pesquisa: Quais são as percepções de sustentabilidade dos servidores públicos da Secretaria de Estado de Planejamento e Administração? Sendo assim, o objetivo geral do trabalho é de identificar as principais percepções de sustentabilidade dos servidores públicos da referida secretaria de planejamento. Para alcançar os objetivos descritos, fez-se uso da metodologia de levantamento survey, que por meio de um formulário eletrônico, coletou-se os dados da amostra de servidores da secretaria. Como principais resultados, observou-se que os servidores apresentam uma percepção média alta com impacto positivo sobre sustentabilidade.
A Review on Therapeutic Activities of Coriandrum sativum L for Rheumatoid Arthritis Remedy
Authors: Gurisha Mikidadi S. , Rao Pulapa V. Kanaka , Cherupally Laxmikanth , Mbise Alex J. 
Published: June 2024

Rheumatoid Arthritis (RA) is an immune-mediated inflammatory condition. It occurs when the immune system attacks the tissue surrounding joints due to the release of specific chemicals and enzymes that start consuming away the cartilage and bones. The ant-arthritis of Coriandrum sativum (CS) has not been summarized before, so this review aims to assess further and explore its efficacy in RA disorders. The online literature search was performed using databases such as ScienceDirect, PubMed, Google Scholar, Wiley Online, Library, Springer, and Taylor& Francis for review. Articles published from January 2010 to January 2024 were composed. Additionally, the molecular docking of the eight selected CS phytochemicals was carried out against the AR protein target (PDB ID: 2AXJ) to support the review. Different parameters such as docking score, oral bioavailability, drug-likeness, absorption, distribution, metabolism, excretion, and toxicity (ADMET) were examined. Docking scores depicted that, anethole, beta-pinene, camphor, and geraniol phytochemicals demonstrated a commendable potential as inhibitors of 2AXJ molecule. The score hierarchy is camphor (-6.9 kcal/mol), beta-pinene (-5.9 kcal/mol), geraniol (-5.3 kcal/mol), and anethole (-5.2 kcal/mol). The four phytochemicals also appear to have good drug-likeness properties and oral bioavailability. Therefore the in vitro and in vivo studies have demonstrated that CS has strong potential as anti-arthritics and anti-inflammatory. However, clinical trials for both fresh and extracted CS are also necessary to validate the findings.
Assessment of Botanicals against the Fruit Borer (Helicoverpa armigera) on Tomato
Authors: Reza Takia Benta , Rahman S. M. Mizanur , Rahaman Md. Abdur , Begum Mamtaz , Shilpa Tirsa Mrong , Banu Mst. Nur Mohal Akhter 
Published: June 2024

The experiment was conducted under the central farm of Sher-e-Bangla Agricultural University, Dhaka in order to assess the efficacy of six promising botanicals (of 50gm/L) against tomato fruit borer (Helicoverpa armigera). The botanicals assessed weree neem leaf extract, Datura seed extract, Garlic bulb extract, Mahogany seed extract, Black pepper seed extract and Allamanda leaf extract. The lowest number of infested fruits in early, mid and late fruiting stages (2.67, 5.63 and 4.48 fruits plot-1 respectively) were obtained from the plots that were treated with neem leaf extract. The highest number of infested fruits were from control plots with 11.33, 16.28, and 13.55fruits/plot obtained at early, mid and late fruiting stage respectively. Similarly, the highest yields of 2.45 kg/plot, 3.10 kg/plot and 2.91 kg/plot at early, mid and late fruiting stages respectively were obtained from the plots treated with neem leaf extract. Increses of weight over control were 75%, 55.78% and 88.96% at early, mid and late harvest respectively. Based on total yield obtained from three harvest (8.54kg/plot) compared to yield of control (5.03kg/plot) and lower toxicity to the environment as well as human being, neem leaf extract was the most promising botanicals for the effective management of tomato fruit borer.
Innovative Work Behavior: The Role of Job Crafting and Job Autonomy Mediated by Work Engagement
Authors: Nathaniel Joshua , Dewi Yustina Erti Pravitasmara 
Published: June 2024

This research aimed to determine the effect of job crafting and job autonomy on innovative work behavior mediated by work engagement. It was conducted at a banking company in Semarang, Central Java. Respondents were selected from which company using a non-probability sampling technique, namely saturation sampling. An online questionnaire was distributed to 100 workers with permanent employee statuses. This study took a quantitative approach, where the data analysis was undertaken using the PLS-SEM method in SmartPLS 4. The results show that (i) Job autonomy has a positive and significant effect on innovative work behavior, while job crafting does not significantly affect innovative work behavior. (ii) Work engagement does not mediate the influence of job autonomy on innovative work behavior, but it fully mediates the influence of job crafting on innovative work behavior.
Ellipsoidal Polyaspartamide Polymersomes with Enhanced Cell‐Targeting Ability
Authors: Lai Mei‐Hsiu , Jeong Jae Hyun , DeVolder Ross J. , Brockman Christopher , Schroeder Charles , Kong Hyunjoon 
Published: April 2012

AbstractNanosized polymersomes functionalized with peptides or proteins are being increasingly studied for targeted delivery of diagnostic and therapeutic molecules. Earlier computational studies have suggested that ellipsoidal nanoparticles, compared to spherical ones, display enhanced binding efficiency with target cells, but this has not yet been experimentally validated. Here, it is hypothesized that hydrophilic polymer chains coupled to vesicle‐forming polymers would result in ellipsoidal polymersomes. In addition, ellipsoidal polymersomes modified with cell adhesion peptides bind with target cells more actively than spherical ones. This hypothesis is examined by substituting polyaspartamide with octadecyl chains and varying numbers of poly(ethylene glycol) (PEG) chains. Increasing the degree of substitution of PEG drives the polymer to self‐assemble into an ellipsoidal polymersome with an aspect ratio of 2.1. Further modification of these ellipsoidal polymersomes with peptides containing an Arg‐Gly‐Asp sequence leads to a significant increase in the rate of association and decrease in the rate of dissociation with a substrate coated with αvβ3 integrins. The results will serve to improve the efficiency of targeted delivery of a wide array of polymersomes loaded with various biomedical modalities.
A co‐occurrence of osteogenesis imperfecta type VI and cystinosis
Authors: Tucker Tracy , Nelson Tanya , Sirrs Sandra , Roughley Peter , Glorieux Francis H. , Moffatt Pierre , Schlade‐Bartusiak Kamilla , Brown Lindsay , Rauch Frank 
Published: April 2012

AbstractOsteogenesis imperfecta type VI (OI type VI) is a rare autosomal recessive disorder caused by mutations in the SERPINF1 gene that encodes pigment epithelium‐derived factor (PEDF). Cystinosis is an autosomal recessive lysosomal transport disorder caused by mutations in the CTNS gene. Both SERPINF1 and CTNS are located on chromosome 17p13.3. We describe an individual presenting with both OI type VI and cystinosis. The patient was diagnosed with cystinosis at the age of 11 months and OI type VI on bone biopsy at the age of 8 years. He has sustained over 30 fractures during his lifetime, and at the age of 19 years entered end‐stage renal disease and subsequent renal transplant. An Affymetrix 6.0 array was used to look for areas of loss of heterozygosity on chromosome 17. Sequencing of the SERPINF1 and CTNS genes was performed, followed by quantitative PCR and Western blot of PEDF to characterize the identified mutation. A 6.58 Mb region of homozygosity was identified on the Affymetrix 6.0 array, encompassing both the SERPINF1 and CTNS genes. Sequencing of the genes identified homozygosity for a known pathogenic CTNS mutation and for a novel in‐frame duplication in SERPINF1. Skin fibroblasts produced a markedly reduced amount of SERPINF1 transcript and PEDF protein. This patient has the concurrent phenotype of two rare recessive diseases, cystinosis and OI type VI. We identified for the first time an in‐frame duplication in SERPINF1 that is responsible for the OI type VI phenotype in this patient. © 2012 Wiley Periodicals, Inc.
Spinning of poly(ethylene terephthalate) fibers filled with inorganic fillers
Authors: Kusuktham Boonsri 
Published: April 2012

AbstractPoly(ethylene terephthalate) (PET)/inorganic fillers were prepared by a melt‐spinning method, and their morphologies and properties were investigated. Four inorganic fillers were studied and compared: calcium carbonate, calcium silicate, magnesium hydroxide, and silica fume. All of the fillers were modified with vinyltriethoxysilane (VTES) in diethyl ether at room temperature for 24 h. The modification of these fillers with VTES improved their agglomeration, hydrophobicity, and heat‐resistance properties. Also, the incorporation of the fillers into the PET fibers increased their thermal resistance. The factor effecting the thermal degradation of the PET fibers was the type of filler. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
A new proposed model for dielectric behavior of PVC/rice husk composites
Authors: Chand Navin , Sharma Janu , Bapat M. N. 
Published: April 2012

AbstractEcofriendly materials are becoming a need of the day. We have severe setback when there is lot of use of agro wastes in plastics. To reduce pure plastic use in agriculture, this study has been made to find some remedial measure. In the process, we sought the effect of addition of rice husk (RH) in polyvinylchloride (PVC) on the dielectric properties at different frequency and temperature has been studied. Measurements have been performed in the frequency range from 1 to 10 kHz and temperature range of 32–80°C. The experimental results show that dielectric constant (ε′) increases with the addition of RH in PVC. Dielectric constant (ε′) decreases with increasing frequency, which indicates that the major contribution to the polarization comes from orientation polarization. Dielectric constant (ε′) increases with increasing temperature due to greater freedom of movement of dipoles within PVC at higher temperatures. A theoretical model for dielectric constant with temperature and frequency dependent is proposed. Experimental results are in good agreement with the proposed theoretical model. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
Unique UV absorbance for triphenylimidazole‐based polymer
Authors: Liao Qiulin , Nie Zhihua , Chen Hongbiao , Luo Xujun , Gao Yong , Li Huaming 
Published: April 2012

AbstractIn this study, a novel vinyl polymer containing 2,4,5‐triphenylimidazole side groups was synthesized through conventional radical polymerization, which possesses the characteristic of temperature‐dependent absorbance in the near‐ultraviolet (UV) spectral region. The linear dependence of UV absorbance on temperature was confirmed for the polymer both in solid state and in solution by experiment and also supported by the results of theoretical investigation. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
Implications of mountain shading on calculating energy for snowmelt using unstructured triangular meshes
Authors: Marsh Christopher B. , Pomeroy John W. , Spiteri Raymond J. 
Published: April 2012

AbstractIn many parts of the world, snowmelt energetics is dominated by solar irradiance. This is particularly the case in the Canadian Rocky Mountains, where clear skies dominate the winter and spring. In mountainous regions, solar irradiance at the snow surface is not only affected by solar angles, atmospheric transmittance, the slope and aspect of immediate topography but also by shadows from surrounding terrain. Accumulation of errors in estimating solar irradiation can lead to significant errors in calculating the timing and rate of snowmelt owing to the seasonal storage of internal energy in the snowpack. Gridded methods, which are often used to estimate solar irradiance in complex terrain, work best with high‐resolution digital elevation models (DEMs), such as those produced using Light Detection and Ranging. However, such methods also introduce errors caused by the rigid nature of the mesh as well as limiting the ability to represent basin characteristics. Unstructured triangular meshes are more efficient in their use of DEM data than fixed grids when producing solar irradiance information for spatially distributed snowmelt calculations, and they do not suffer from the artefact problems of a gridded DEM. This paper demonstrates the increased accuracy of using a horizon‐shading algorithm model with an unstructured mesh versus standard self‐shading algorithms. A systematic over‐prediction in irradiance is observed when only self‐shadows are considered. The modelled results are diagnosed by comparison to measurements of mountain shadows by time‐lapse digital cameras and solar irradiance by a network of radiometers in Marmot Creek Research Basin, Alberta, Canada. Results show that, depending on the depth and aspect of the snowpack of the Mount Allan cirque, 6.0 to 66.4% of the pre‐melt snowpack could be prematurely melted. On average at a basin scale, there was a 14.4‐mm SWE difference in equivalent melt energy between the two shading algorithms with maximum differences over 100% of the total annual snowfall. Copyright © 2012 John Wiley & Sons, Ltd.
A new method for aquifer system identification and parameter estimation
Authors: Avci Cem B. , Şahin A.Ufuk , Çiftçi Emin 
Published: April 2012

AbstractThe standard practice for assessing aquifer parameters is to match groundwater drawdown data obtained during pumping tests against theoretical well function curves specific to the aquifer system being tested. The shape of the curve derived from the logarithmic time derivative of the drawdown data is also very frequently used as a diagnostic tool to identify the aquifer system in which the pumping test is being conducted. The present study investigates the incremental area method (IAM) to serve as an alternative diagnostic tool for the aquifer system identification as well as a supplement to the aquifer parameter estimation procedure. The IAM based diagnostic curves for ideal confined, leaky, bounded and unconfined aquifers have been derived as part of this study, and individual features of the plots have been identified. These features were noted to be unique to each aquifer setting, which could be used for rapid evaluation of the aquifer system. The effectiveness of the IAM methodology was investigated by analyzing field data for various aquifer settings including leaky, unconfined, bounded and heterogeneous conditions. The results showed that the proposed approach is a viable method for use as a diagnostic tool to identify the aquifer system characteristics as well as to support the estimation of the hydraulic parameters obtained from standard curve matching procedures. Copyright © 2012 John Wiley & Sons, Ltd.
Alberto sols, teacher and mentor of spanish biochemists (1917–1989)
Authors: Gancedo Carlos 
Published: April 2012

AbstractBiochemistry in Spain owes much to the figure of Alberto Sols. In words of Nobel Prize winner Severo Ochoa: “He has been the first scientist to establish successfully biochemistry in Spain.” His intellectual rigour, care in experimental design, emphasis on quality, and attention to the presentation of results permeated far beyond his inner circle to the then fledging Spanish biochemical community. It would be difficult to find some Spanish biochemist of the generation that now starts to retire who has not been influenced in a way or another by the work of Sols. However, it is also likely that the new generations of biochemists and molecular biologists in the country ignore who was Sols and what their field owns to him. The following lines try to highlight some key points of his scientific biography, the circumstances in which they took place and the state of the corresponding research area at that moment. © 2012 IUBMB IUBMB Life, 2012
Managing financial risk
Authors: Paul Jack W. 
Published: April 2012

AbstractA company's risk profile determines the scope of its annual audit. The greater the risks, the more audit testing is required. Auditors are looking for those risk factors that may cause the financial statements to be misstated. But the reality is that auditors are concerned with all kinds of risks that can impact a client company—because the financial statements cannot be viewed in isolation from company operations.The Public Company Accounting Oversight Board recently issued standards to help auditors improve the effectiveness of their risk assessments, and to enhance the way auditors address client risks. But the methods used by auditors to assess and deal with client risks also can be employed by management—as a framework for developing a risk management program. This short commentary explores how to do that. © 2012 Wiley Periodicals, Inc.
Changes in accounting and auditing for consolidation of variable interest entities
Authors: Reinstein Alan , Churyk Natalie Tatiana , Berde S. Sam 
Published: April 2012

AbstractIn 2009, the Financial Accounting Standards Board issued Statement of Financial Accounting Standards (SFAS) No. 167 (ASC 810), which broadens the number of entities that will consolidate formerly unconsolidated off‐balance‐sheet assets and liabilities and otherwise changes greatly the framework for consolidated financial statements. Many entities had used qualifying special purpose entities and other vehicles to prevent them from applying the consolidation provisions of Financial Interpretation No. 46 (Revised) (FIN 46(R)), Consolidation of Variable Interest Entities. This article summarizes the provisions of the new standard and provides examples of its application in order to help practitioners implement these provisions and provide guidance to companies and clients. © 2012 Wiley Periodicals, Inc.