bluuebunny/crossref_metadata_2025 huggingface dataset:
Núcleos conteudistas nos cursos de graduação em Biblioteconomia do Centro-Oeste brasileiro
Authors: Martins Daniele da Silva , Pereira de Oliveira Lais
Published: August 2022

Aborda a área de organização da informação sob a perspectiva formativa, considerando o caráter do ensino estabelecido nesse âmbito, junto às graduações em Biblioteconomia no Brasil. Reconhece, nesse sentido, a evidência da organização da informação enquanto eixo de ensino específico na graduação bibliotecária. Objetiva delinear o núcleo conteudista em organização da informação, oriundo dos cursos de Biblioteconomia do Centro-Oeste brasileiro. Constitui pesquisa descritiva, quali-quantitativa e documental, com plano amostral sobre três universidades públicas federais do Centro-Oeste do Brasil e plano de coleta prioritário sobre os projetos pedagógicos de tais instituições, consubstanciado por desenho analítico sobre os ementários das disciplinas. Demonstra que o núcleo conteudista em organização da informação congrega um caráter de formação amplamente tecnicista, pautado nos instrumentos que apoiam o trabalho bibliotecário de representação descritiva e temática da informação, além de se destacar entre os demais eixos de ensino no que se refere ao quantitativo de disciplinas ofertadas nesse âmbito. Conclui-se que a formação bibliotecária em organização da informação, como configurada no Centro-Oeste brasileiro, é pragmática e expressiva.
monitoria no processo de ensino e aprendizagem
Authors: Freitas Georgete
Published: August 2022

Ações do Projeto de Ensino de Monitoria no Curso de Biblioteconomia da Universidade Federal do Maranhão, por meio de metodologias ativas. Objetiva possibilitar aos discentes conhecimentos teórico-práticos no processo de monitoria e incentivar o seu desenvolvimento nas atividades acadêmicas, como insumo de qualidade no processo de ensino e aprendizagem, por meio da vivência da prática pedagógica e a valorização das relações interpessoais. As metodologias desenvolvidas pelos monitores, professores e coordenadoria se entrelaçaram ao Projeto Pedagógico do Curso de Biblioteconomia em relação às disciplinas ofertadas a diversos cursos da UFMA e as de natureza profissional. Destaca as produções dos monitores nos componentes curriculares: participação em reuniões de planejamento; levantamento bibliográfico em fontes de informação; auxílio na orientação à pesquisa bibliográfica;   seleção de vídeos, filmes e podcasts; organização de webinários; leitura, fichamento e participação na discussão dos textos recomendados; acompanhamento aos alunos nas atividades práticas propostas nas disciplinas; participação nas discussões on-line no chat,  divulgação da agenda de atividades e postagem de material nos grupos de WhatsApp; auxílio na elaboração de questões para avaliação; participação no planejamento e execução das ações da Revista Bibliomar, Semana de Monteiro Lobato, Natal com Leitura e Semana Acadêmica. Os resultados foram relatados pelos alunos e professores, no decorrer das reuniões de planejamento e avaliação e nos relatórios, ao comentarem que a experiência de monitoria superou suas expectativas, sobretudo devido aos impactos do ensino remoto que exigiram criatividade, empatia e estratégias de interação, ressignificando o processo de ensino e aprendizagem em tempos de pandemia, proveniente do Sars-CoV-2.
Boas práticas na formação de mediadores de leitura e os desafios do ensino remoto
Authors: Martins Leoneide Maria Brito
Published: August 2022

Discussão sobre boas práticas desenvolvidas como processo metodológico na disciplina “Leitura e Formação de Leitores”, no Curso de Biblioteconomia da Universidade Federal do Maranhão (UFMA), por meio do ensino remoto, plataforma google meet e youtube, no período de pandemia da COVID 19, referente ao período 2020 a 2021. Este trabalho trata-se de um relato de experiência sobre o processo de formação de mediadores de leitura, construído em conjunto com os alunos da graduação, que se constituiu num processo criativo, considerando a necessidade de mudanças metodológicas, no que se refere a “novos” modos de ensinar e de aprender, a partir dos desafios impostos pelo modelo de ensino remoto, mas também impulsionou reinventar fazeres e saberes universitários, por meio de boas práticas de ensino, pesquisa e extensão. Nesse contexto privilegiou-se o método dialógico e compartilhado no desenvolvimento das ações pedagógicas, por meio do planejamento das atividades de leitura e experiências de mediação que culminou com a realização da XII Semana de Monteiro Lobato e criação do Clube de Leitura, por meio de oficinas, mesas redondas e diálogos com especialistas da área de leitura e literatura. A realidade do processo de ensino e aprendizagem na universidade no período pandêmico resultou em mudanças significativas e desafiadoras, sobretudo em relação aos processos metodológicos, relação professor x aluno e aos usos social e crítico das tecnologias de informação e de comunicação, assim como um olhar atento sobre outras possibilidades de humanização por meio da leitura literária de diferentes gêneros textuais
Programa de extensão Teia
Authors: Bernardino Maria Cleide Rodrigues , Bastos Oriana César , Dantas Cícera Camila de Carvalho , Santiago Maria Raysa Gomes , Soares Francisco Fábio , Belarmino José Matheus Pereira
Published: August 2022

Trata sobre o programa de extensão universitária ‘Teia: advocacy para bibliotecas sustentáveis’, que tem o objetivo de construir uma rede de projetos, integrando biblioteca, escola e comunidade, a partir de um universo de 28 escolas distribuídas em 6 municípios. O programa Teia consta de 5 projetos que visa que atuam nos 4 eixos da Universidade Federal do Cariri: ensino, pesquisa, extensão e cultura. Este trabalho tem como objetivo apresentar o primeiro ano de um desses projetos, o ‘projeto Radar: monitoramento de ações e soluções inovadoras em prol da Agenda 2030’. O referencial teórico está voltado para os construtos de sustentabilidade, desenvolvimento sustentável e biblioteca escolar. Usou-se a pesquisa exploratória, com abordagem dialética e análise qualitativa e quantitativa. Os resultados apontam para 33 projetos nas escolas pesquisadas, atendendo a 10 dos 17 objetivos de desenvolvimento sustentável e uma alta concentração no ODS 4: ‘educação de qualidade’, nos projetos desenvolvidos pelas bibliotecas escolares. Conclui-se que os projetos identificados congregam ações que se voltam para outros ODS que não os apontados no projeto original e que ações como as elencadas, evidenciam a relação dialógica entre a Universidade e a Escola, contribuindo, sobremaneira, para a formação acadêmica e cidadã dos atores envolvidos. Aponta-se ainda, as dificuldades no monitoramento das ações no ano de 2021 devido à Pandemia por Covid-19.
Relato de Experiência sobre o Processo de Criação do Plano de Classificação Documental da Prefeitura de Aracaju - SE
Authors: Santos Mércia
Published: August 2022

Este trabalho surge da parceria entre a Prefeitura Municipal de Aracaju - SE (PMA) e a Universidade Federal de Sergipe (UFS) na modalidade de ação de extensão denominado Sala de Gestão do Centro de Empreendedorismo (CEMP) da UFS. O objetivo deste artigo é relatar e descrever as etapas do processo de construção do Plano de Classificação Documental da PMA e apresentar os resultados obtidos durante a execução das atividades, onde buscou-se desenvolver uma tabela de temporalidade documental e destinação de documentos de arquivo no âmbito da administração municipal da Prefeitura de Aracaju - SE. Apresenta uma metodologia de cunho exploratório e descritivo, e quanto aos meios, a pesquisa é bibliográfica e de campo, quanto a abordagem é qualitativa e quantitativa. Teve como resultado a elaboração do piloto e a construção do Plano de Classificação Documental. Analisou-se ainda o nível de reconhecimento da Prefeitura como um importante agente condutor da política arquivista no poder executivo municipal e constatando uma quase “invisibilidade” da importância da documentação entre os representantes dos setores responsáveis pela produção da documentação.
Productivity and nutritional qualities of grain of new F1 winter rye hybrids in the Southern Ural
Authors: Ismagilov Kamil , Nurlygayanov Razit , Kayumova Rose
Published: August 2022

The paper presents field experiments and laboratory analyses to study productivity and nutritional qualities of the grain of four F1 hybrids of winter rye (Aviator, Ravo, Prommo, Eterno), and the population variety Chulpan 7 in the natural conditions of the Southern Ural. The research revealed an individual difference in the nutritional qualities of grain and the content of anti-nutritional substances between different studied F1 hybrids, and compared them with the Chulpan 7 variety. Hybrids of winter rye formed higher grain productivity (from 4.65 t/ha to 6.07 t/ha) in comparison with the Chulpan 7 variety. The paper assesses the content of anti-nutritional substances (water-soluble pentosans) in grain, the kinematic viscosity of the water-extractable from grain hybrids (water-soluble pentosans 1.55 ‒ 1.74%, the viscosity of the water extract 18.3 ‒ 23.1 cSt and winter rye variety (of water-soluble pentosans 1.75%, the viscosity of the water extract was 23.4 cSt), and the dependence of these indicators on the environment during the growing season. The paper also presents the results of determining the nutritional value of the grain of hybrids and the Chulpan 7 variety by the content of crude proteins, starch, phosphorus, calcium, and potassium.
Loss of Nutrients Through Soil Water Erosion in Calcic Chernozem
Authors: Kuncheva Gergana , Dimitrov Petar , Beloev Hristo , Kangalov Plamen
Published: August 2022

The application of technology for water erosion control plays an essential role in development of sustainable agricultural systems. The paper presented observes the study results from a period of six years in terms of losses of mineral nitrogen and available forms of phosphorus and potassium in the cultivation of wheat and maize on sloping terrains (on calcic chernozem soil type) under the influence of water erosion processes. The impacts of four different types of technology (conventional technology performed along the slope; conventional technology applied across the slope; surface mulching; and minimum tillage with vertical mulching) on nutrient losses were tested. On average, the annual losses of mineral nitrogen, available forms of phosphorus and potassium in wheat production along the slope utilizing conventional technology were 6.0 kg·ha−1y−1, 1.6 kg·ha−1y−1, 5.9 kg·ha−1y−1, and 11.3 kg·ha−1y−1, 2.1 kg kg·ha−1y−1, 10.8 kg kg·ha−1y−1 in maize production. The lowest losses in these elements occurred with minimal employment of tillage system, as they reached values of 2.3 kg·ha−1y−1; 0.6 kg·ha−1y−1, 2.0 kg·ha−1y−1, respectively, in wheat production, and 1.7 kg·ha−1y−1, 0.3 kg·ha−1y−1, 1. kg·ha−1y−1, respectively, in maize production.
The Accuracy Assessment of Devices Used for Distance Measuring in Dynamic Vehicle Tests
Authors: Kuchar Peter , Janoško Ivan , Holúbek Michal , Čedík Jakub , Pexa Martin
Published: August 2022

The paper presented deals with the accuracy of three selected devices based on acceleration measurement: accelerometer – XL meter, the global position measurement device by VBox and the constructed 5th wheel, which allows a very accurate measurement of distance along with speed and acceleration of the vehicle. The accuracy of recordings was tested during various driving conditions when all the three measuring devices were attached to the vehicle. Measurements showed that GPS-based measuring devices level off and even surpass accelerometers when used in locations with a good view of the sky. The 5th wheel provided the most representative results, as the difference between average and real standard deviations of the measured distance were 0.78%, 1.38%, 3.48% for the 5th wheel, VBox GPS and XL meter, respectively. The accuracy of the 5th wheel and VBox can be considered very high when taking into account the fact that dynamic actions were monitored. The paper purpose is to point out the significance of measuring device selection in assessing the distance travelled by the vehicle.
On graphs associated to ring of Guassian integers and ring of integers modulo n
Authors: Pirzada S. , Bhat M. Imran
Published: August 2022

For a commutative ring R with identity 1, the zero-divisor graph of R, denoted by Γ(R), is a simple graph whose vertex set is the set of non-zero zero divisors Z*(R) and the two vertices x and y ∈ Z*(R) are adjacent if and only if xy = 0. In this paper, we compute the values of some graph parameters of the zero-divisor graph associated to the ring of Gaussian integers modulo n, ℤn[i] and the ring of integers modulo n, ℤn.
On Seidel Laplacian matrix and energy of graphs
Authors: Yalçin N. Feyza
Published: August 2022

In this work, the Seidel Laplacian spectrum of graphs are determined. Then new bounds are presented for the Seidel Laplacian energy of regular graphs and graphs by using their Seidel Laplacian spectrum and other techniques. Further, the Seidel Laplacian energy of specific graphs are computed.
Some properties of the closed global shadow graphs and their zero forcing number
Authors: Raksha M. R. , Dominic Charles
Published: August 2022

Zero forcing is one of the dynamic vertex coloring problem. Zero forcing number is the minimum cardinality of the zero forcing sets. This parameter is the upper bound for the maximum nullity. A new class of graph where the maximum nullity is equal to the zero forcing number of the graph is defined as closed global shadow graph. Basic properties and zero forcing number of this graph class is analysed.
A Jurdjevic-Quinn theorem for stochastic differential systems under weak conditions
Authors: Florchinger Patrick
Published: August 2022

The purpose of this paper is to provide sufficient conditions for the stabilizability of weak solutions of stochastic differential systems when both the drift and diffusion are affine in the control. This result extends the well–known theorem of Jurdjevic– Quinn (Jurdjevic and Quinn, 1978) to stochastic differential systems under weaker conditions on the system coefficients than those assumed in Florchinger (2002).
A new approach to maximize the overall return on investment with price and stock dependent demand under the nonlinear holding cost
Authors: Bhadoriya Amrita , Jani Mrudul Y. , Chaudhari Urmila , Tadvi Aniket C.
Published: August 2022

This study investigates an inventory model for deteriorating products with a price and stock-dependent demand pattern where the holding cost is a non-linear function of both time and stock level. Moreover, a decreased price and a higher stock level lead to a higher rate of demand. Consequently, in this article, we present a new approach, aiming at maximization of the return on investment by maximizing the profit/cost ratio. If an inventory manager has the potential to invest in a variety of projects, but disposes of only limited resources, it is logical to strategically plan towards a better return on investment. As a result, the manager’s objective will be to develop an inventory policy with a possibly high return on investment. Therefore, a new strategy is considered in this article to optimize the profitability ratio in terms of replenishment time and selling price, which is determined as the proportion between the profit and the overall cost of the inventory scheme. This research demonstrates that optimizing the profitability ratio is equivalent to decreasing the average inventory cost of a product per unit. Also, the optimality is graphically checked and one numerical illustration is discussed to explain the result of the proposed model. Finally, sensitivity analysis of key parameters is performed to show the applicability of the proposed model. The profit/cost ratio is more sensitive to price elasticity markup or purchasing cost compared to the other parameters used. Also, for decision-makers, several helpful management insights are derived.
A Use Case of Patent Classification Using Deep Learning with Transfer Learning
Authors: Henriques Roberto , Ferreira Adria , Castelli Mauro
Published: August 2022

Purpose

Patent classification is one of the areas in Intellectual Property Analytics (IPA), and a growing use case since the number of patent applications has been increasing worldwide. We propose using machine learning algorithms to classify Portuguese patents and evaluate the performance of transfer learning methodologies to solve this task.

Design/methodology/approach

We applied three different approaches in this paper. First, we used a dataset available by INPI to explore traditional machine learning algorithms and ensemble methods. After preprocessing data by applying TF-IDF, FastText and Doc2Vec, the models were evaluated by cross-validation in 5 folds. In a second approach, we used two different Neural Networks architectures, a Convolutional Neural Network (CNN) and a bi-directional Long Short-Term Memory (BiLSTM). Finally, we used pre-trained BERT, DistilBERT, and ULMFiT models in the third approach.

Findings

BERTTimbau, a BERT architecture model pre-trained on a large Portuguese corpus, presented the best results for the task, even though with a performance of only 4% superior to a LinearSVC model using TF-IDF feature engineering.

Research limitations

The dataset was highly imbalanced, as usual in patent applications, so the classes with the lowest samples were expected to present the worst performance. That result happened in some cases, especially in classes with less than 60 training samples.

Practical implications

Patent classification is challenging because of the hierarchical classification system, the context overlap, and the underrepresentation of the classes. However, the final model presented an acceptable performance given the size of the dataset and the task complexity. This model can support the decision and improve the time by proposing a category in the second level of ICP, which is one of the critical phases of the grant patent process.

Originality/value

To our knowledge, the proposed models were never implemented for Portuguese patent classification.
Analysis of the range of metformin hydrochloride medicines for the treatment of type II diabetes mellitus
Authors: Podolsky I. M. , Vladymyrova I. M. , Volkova A. V. , Lytkin D. V. , Ryshchenko О. О.
Published: August 2022

Aim. To analyze the range of metformin hydrochloride medicines registered at the pharmaceutical market of Ukraine for the treatment of type II diabetes mellitus.Materials and methods. When conducting the analysis the data of the State Register of Medicines of Ukraine, namely, reference resources, in particular the Compendium drug reference book, unified clinical protocols for the treatment of type II diabetes in adults, were used as research materials. In the course of the study, documentary, analytical, mathematical-statistical and logical data generalization methods were used. Graphical and tabular methods with explanations and conclusions were used to visually present the research results. The analysis of the structure of the assortment of metformin hydrochloride medicines wascarried out taking into account trade names of the drugs, countries producing these drugs, dosage forms and the composition of the drugs.Results. According to the results of the study, the ratio of metformin hydrochloride medicines of domestic and foreign production has been found. It has been determined that 65 % of the total range consists of foreign-made drugs, mainly from India (37 %) and France (15 %). When studying the structure of the assortment of metformin hydrochloride medicines of domestic production, 6 manufacturers have been identified; among them 40 % of the domestic assortment is manufactured by Farmak JSC. In addition, the list of metformin hydrochloride medicines made by domestic manufacturers from in bulk tablets of foreign (mainly Indian) production has been detailed. It has been found that all metformin hydrochloride medicinesare available in the form of solid dosage forms, mainly in the form of coated tablets (75 % of the total amount of drugs), in three doses.Conclusions. Based on the analysis, it has been found that more than 160 metformin hydrochloride medicines are registered in Ukraine; the vast majority of them are of foreign production. It has been determined that most domestic manufacturers produce metformin hydrochloride medicines from foreign-made tablets in bulk.Key words: market analysis; type II diabetes mellitus; metformin hydrochloride; assortment.
Substantiation of the composition and development of technology of granules based on the Alchemilla subcrenata Bus. herbal extract
Authors: Dubel N. I. , Grytsyk L. M. , Grytsyk A. R. , Sas I. A.
Published: August 2022

Aim. To develop the optimal composition and technology, determine the quality indicators of granules based on a dry extract of Alchemilla subcrenata Bus. herb.

Materials and methods. A dry extract of Alchemilla subcrenata Bus. herb, excipients and granules based on the extract studied were chosen as the study objects. For the analysis of recent research and publications, methods of scientific analysis were used; they contributed to the comparison, analysis, generalization and systematization of literature data. To achieve the aim, the generally accepted physical, physico-chemical and pharmaco-technological methods were used; they contributed to the objective assessment of the quality of the drug obtained.

Results. According to the results of the studies conducted, the composition of granules based on the dry extract of Alchemilla subcrenata Bus. herb (the extractant – 70 % ethanol) was substantiated, and the technology of their production was developed. During the experimental studies, the optimal excipients for the production of granules, namely saccharin, sorbitol, ascorbic acid and 1 % methylcellulose solution, were selected. The granules developed meet the requirements of the State Pharmacopoeia of Ukraine 2.0 by their organoleptic indicators and technological parameters, and are stable during storage.

Conclusions. The optimal composition of such dosage form as granules under the conditional name “Alchemin” has been substantiated, and the technology of their production has been developed. According to the results of pharmaco-technological and physico-chemical studies, the compliance of the granules developed with the requirements of the State Pharmacopoeia of Ukraine 2.0 has been proven.
The effectiveness of the occupational therapy technologies in restoring sensitivity of the paretic upper limb in the early recovery stage of ischemic stroke
Authors: Maykova T. V. , Afanasyev S. M.
Published: August 2022

Aim. To restore the sensory functions of the paretic upper limb in patients with post-stroke hemiparesis by applying the occupational therapy in order to improve the ability to daily activities and independence.Material and methods. Under observation there were 63 patients with post-stroke hemiparesis. The level of sensory functions of the upper limb was determined using the tests recommended by the European Stroke Organization for stroke control in clinical practice.Results. While developing the program of the occupational therapy intervention a correctional and developmental strategy was chosen. Patients were randomized into 2 groups. In the main group the “mirror” therapy was used, it was combined with the art therapy. At the beginning, the “mirror” therapy was used for 1 month, followed by the functional tasks and the art therapy. As a result of the program applied, the sensory functions of the upper limb were completely restored or significantly improved in the vast majority of patients, which led to recovery and improvement of its dexterity.

Conclusions. Sensory insufficiency of the paretic upper limb, which is formed during ischemic stroke, is a limiting factor in restoring its motor activity in the vast majority of patients, and it hinders independence in their domestic and professional activities.The use of the “mirror” therapy as a key trigger, a starting factor to stimulate the mechanisms of neuronal plasticity with further addition of the art therapy, with the purposeful application of tasks for training of proprioceptive and perceptual qualities, made it possible to restore or significantly improve the sensory functions of the paretic upper limb and its dexterity.Key words: ischemic stroke; occupational therapy; recovery of sensitivity.
Perception of Parental Love as a Predictor of Children's Life Satisfaction
Authors: Kidder Kaitlyn , King Alan R.
Published: August 2022

Love is a fundamental part of psychological well-adjustment, but a gap in the literature exists surrounding how perceptions of how loved adults felt by their biological parents in childhood can contribute to life satisfaction and psychological adjustment. This study aims to fill that gap by examining the impact of feeling loved by biological parents and grandparents on psychological well-being and adjustment factors later in life. 1,189 college-aged participants volunteered for the study and were recruited online via SONA at a university in the United States. We constructed a Likert-style rating scale to measure individuals’ level of perceived love (LUV) and its contribution to various adjustment indicators, including life satisfaction, depression, anxiety, trait anger, and conduct disturbance. Linear regression models and bivariate correlations were calculated for the predictor and maladjustment indicators. Results showed a modest correlation between the LUV index and life satisfaction as well as other maladjustment indicators and revealed that LUV significantly predicted life satisfaction. LUV was also a significant predictor of depression, anxiety, anger, and conduct disturbance. These results suggest that perceived love could be an important resilience factor and could be used to predict life satisfaction and psychological adjustment later in life.
Four Variables Were Sufficient for Low Back Pain: Determining Which Patient-Reported Tools Pain and Disability Improvements
Authors: Neeley Darren K. , George Steven Z. , Minick Kate , Snow Greg , Brennan Gerard
Published: August 2022

OBJECTIVE: To predict 30- and 180-day improvements in disability and pain for patients seeking physical therapy care for low back pain (LBP).

DESIGN: Longitudinal cohort.

METHODS: Baseline assessment was completed by 259 patients with chief complaint of LBP, and the assessment includes psychosocial measures (Keele STarT Back Screening [SBST] and the Optimal Screening for Prediction of Referral and Outcome Yellow Flag [OSPRO-YF] tools), the Optimal Screening for Prediction of Referral and Outcome Review of Symptoms (OSPRO-ROS) and the Review of Symptoms Plus (OSPRO-ROS+) tools, the Charlson Comorbidity Index (CCI), the Area Deprivation Index (ADI), and the National Institute of Health Chronic Pain Criteria (NIH-CP). Using the Modified Low Back Disability Questionnaire (MDQ) and the Numeric Pain Rating Scale (NPRS) as primary outcomes, statistical analysis determined multiple sets of predictor variables with similar model performance.

RESULTS: The parsimonious “best model” for prediction of the 180-day MDQ change included 3 predictors (Admit MDQ, NIH-CP, and OSPRO ROS+) because it had the lowest penalized goodness-of-fit statistic (BIC = −35.21) and the highest explained variance (R2 = 0.295). The parsimonious “best model” for 180-day NPRS change included 2 variables (Admit NPRS and OSPRO-ROS+) with the lowest penalized goodness-of-fit statistic (BIC = −18.2) and the highest explained variance (R2 = 0.190).

CONCLUSION: There were many model options with similar statistical performance when using established measures to predict MDQ and NPRS outcomes. A potential variable set for a standard predictive model that balances statistical performance with pragmatic considerations included the OSPRO-ROS+, OSPRO-YF, NIH-CP definition, and admit MDQ and NPRS scores. J Orthop Sports Phys Ther 2022;52(10):685–693. Epub: 12 August 2022. doi:10.2519/jospt.2022.11018
The impact of stratified hypoalbuminemia and dialysis on morbidity/mortality after posterior spinal fusion surgery: An ACS-NSQIP study
Authors: Camino-Willhuber Gaston , Oyadomari Sarah , Ochoa Jonathan , Holc Fernando , Guiroy Alfredo , Bow Hansen , Hashmi Sohaib , Oh Michael , Bhatia Nitin , Lee Yu-po
Published: August 2022

Background:

Preoperative optimization in patients undergoing posterior spinal fusion is essential to limit the number and severity of postoperative complications. Here, we, additionally, evaluated the impact of hypoalbuminemia on morbidity and mortality after posterior spinal fusion surgery.

Methods:

This retrospective analysis was performed using data from a prospective multicentric database (ACSNSQIP:2015–2020) regarding patients undergoing posterior spinal fusions. Factors studied included; baseline demographics and 30-day postoperative complications (i.e., reoperations, readmissions, and mortality rates).

Results:

There were 6805 patients who met the inclusion criteria. They averaged 62 years of age and had an average BMI of 30.2. Within the 30-day postoperative period, 634 (9.3%) sustained complications; 467 (6.9%) were readmitted, 263 (3.9%) required reoperations, and 37 (0.5%) expired. Although multiple preoperative risk factors were analyzed, hypoalbuminemia, severe hypoalbuminemia, and dialysis were the strongest independent risk factors associated with complications (i.e., reoperations, readmissions, and mortality).

Conclusion:

Hypoalbuminemia, severe hypoalbuminemia, and dialysis were significant predictors for morbidity and mortality after posterior spinal fusion surgery.
Development of General Issues of Library Science: Modern Problem and Situational Discourse
Authors: Stolyarov Yuri N.
Published: August 2022

The author presents the problems of general library science that need profound development. First, it is necessary to determine the relationship between the concepts of “library science” and “general library science”, as well as the content of the concepts of “partial library science”, “special library science”, “electronic library science”, etc. The author emphasizes to bring the Standard GOST 7.0—99 “Information and library activities, bibliography. Terms and definitions or coming to replace it the State Standart GOST “Library and information activities, bibliography. Terms and defenitions” into compliance with the Federal Law No. 78-FZ of 29.12.1994 “On Librarianship”, primarily in terms of the relationship between the concepts of “information and library” and “library and information”. Both of these terms are incorrect. Then, it is necessary to give the scientific definition of the concept of “library”, which differs from its normative-legal definition, as well as to abandon the terms and concepts artificially introduced into the library science thesaurus. It is required to separate the concepts of “librarianship” and “library activity”, to abandon the idea of library as a social institution for the provision of services. The existing approach leads to the steady displacement of cultural activities from the sphere of government responsibility into purely market relations, forms a false understanding of the phenomenon of cultural values, from which the spiritual component is derived. In the field of services, being a type of marketing, albeit non-commercial, as it is in librarianship, the preservation, production, transmission and dissemination of spiritual values cannot be carried out. The author proposes in place of the concept of “service” as the ultimate goal of librarianship to put the concept of “goodness” and to understand the library as a social institution providing socially significant goodness. The system approach requires the development of each of the library components as a four-element system. The author declares the need to correct almost the entire conceptual apparatus of library stock studies and catalogue science, littered with the introduction of the term “information resource” instead of the concept of “document”, which, in turn, needs considerable clarification. The author makes proposal for the implementation of the current actual tasks of general library science.
Institutional Repositories in Russia and Abroad: Review of Publications
Authors: Balutkina Natalya A. , Stukalova Anna A.
Published: August 2022

In contemporary information space, repository formation is one of the urgent tasks of libraries of scientific and educational institutions. Institutional repositories (IRs) provide unhindered access to scholarly works posted by scientists and specialists for general user, increasing the demand for the library's information resources.

The article represents the review of foreign and domestic publications on the formation and development of institutional repositories. The authors consider the advantages of forming Open Access (OA) Repositories both among prospective authors and potential users: archiving and keeping materials in the IR up-to-date, ensuring visibility and possibility of using scientific research through global access, rapid dissemination of research results, increasing the citation of submitted materials, growth of prestige of the organization, the development of scientific communication, etc. The authors found out that placing publications in international archives (arXiv, BioXiv, etc.) or corporate projects (BASE, HathiTrust) has a greater impact on the visibility and potential citation of publications.

The article identifies the problems of formation and use of repositories: labour intensity of content placement process, the complexity of data exchange, copyright management, the lack of incentives in providing information about their scientific work, the need for additional time and labour resources when maintaining the IR, the financial costs of maintaining the repository, and the difficulties of search in the IR. The authors note that the IR functionality depends on the software capabilities. The paper gives the examples of new generation repositories and presents their features: self-filling, automatic classification based on text mining and machine learning, data management processes between different systems, easy-to-use interfaces.
Theory and practice of behavioral finance: rationality and irrationality in decision-making
Authors: Жатикова Д.В. , Тронин С.А.
Published: August 2022

Целью статьи является анализ основных положений, постулатов и возможностей применения теории поведенческих финансов в современных условиях. Задачи работы: исследование теории перспектив, рациональных и иррациональных моделей поведения человека; факторов, оказывающих влияние на принятие финансового решения; прослеживание эволюции взглядов ученых на сущность финансов; составление опроса в Google Forms для практического обоснования жизнеспособности поведенческого направления. Методологической основой статьи служит анализ российской и зарубежной литературы, научных статей и представление идей выдающихся авторов в области поведенческих финансов. Полученные в ходе исследования данные позволяют говорить об ограниченной рациональности человека при принятии решений: стремлении к получению максимальной выгоды, но выборе оптимального варианта, который является наиболее удобным для него в данный момент времени с учетом внешних факторов.

Тhe purpose of the article is to analyze the main provisions, postulates and possibilities of applying the theory of behavioral finance in modern conditions. Tasks of the work: research of the theory of prospects, rational and irrational models of human behavior; factors influencing financial decision-making; tracing the evolution of scientists' views on the essence of finance; compiling a survey in Google Forms for practical justification of the viability of the behavioral direction. The methodological basis of the article is the analysis of Russian and foreign literature, scientific articles and the presentation of ideas of outstanding authors in the field of behavioral finance. The data obtained in the course of the study allow us to speak about the limited rationality of a person when making decisions: the desire to obtain maximum benefits, but choosing the optimal option that is most convenient for him at a given time, taking into account external factors.
The technology of designing situational problems for the development of students’ science literacy
Authors: Дубась Г. И. , Худякова А. В.
Published: August 2022

В статье рассматривается проблема совершенствования профессиональных компетенций педагогов в области формирования естественнонаучной грамотности обучающихся. Приведено описание разработанной авторами технологии проектирования ситуационных задач для развития естественнонаучной грамотности. Представлены примеры и шаблоны формулировок вопросов для конструирования ситуационных задач, направленных на три группы компетенций, входящих в состав естественнонаучной грамотности. Описаны результаты педагогического эксперимента по апробации разработанной технологии проектирования ситуационных задач. Теоретические методы исследования включали в себя: контент-анализ научной и учебно-методической литературы по теории и практике конструирования ситуационных задач; обобщение анализа подходов к проектированию заданий для развития естественнонаучной грамотности. В качестве эмпирических методов были использованы наблюдение, педагогический эксперимент и анкетирование. При разработке диагностического инструментария структура профессиональных компетенций педагогов рассматривалась как совокупность трёх компонентов: знания, умения и практический опыт. В исследовании приняли участие 70 педагогов образовательных организаций Пермского края и 30 студентов Пермского государственного гуманитарно-педагогического университета. Проведенное исследование позволяет сделать вывод о результативности применения технологии проектирования ситуационных задач для развития профессиональных проектных компетенций педагогов и студентов.

The article deals with the problem of improving teachers’ professional competencies in formation of students’ science literacy. A description of the authors’ technology for designing situational problems for the development of science literacy is given. Examples and templates for questions that help to construct situational tasks for three groups of science literacy competencies are presented. The results of the experimental implementation of the developed technology for designing situational problems are described. Theoretical research methods included as follows: content analysis of scientific, educational and methodical literature on the theory and practice of constructing situational problems; generalization of the analysis of approaches to the design of tasks for the science literacy development. Observation, pedagogical experiment and questioning were used as empirical methods. When developing diagnostic tools, the structure of teachers’ professional competencies was considered as a combination of three components: knowledge, skills and practical experience. The study involved 70 teachers from educational institutions of the Perm Krai (Russian Federation) and 30 students of Perm State Humanitarian Pedagogical University. The conducted research makes it possible to draw a conclusion about the effectiveness of the application of the technology of designing situational problems for the development of teachers’ and students’ professional competencies.
Three-Dimensional Covalent Organic Frameworks with scu Topology
Authors: Das Saikat , Sekine Taishu , Mabuchi Haruna , Irie Tsukasa , Sakai Jin , Negishi Yuichi
Published: August 2022

Three-dimensional (3D) covalent organic frameworks (COFs) exemplify a new generation of crystalline extended solids with intriguing structures and unprecedented porosity. Notwithstanding substantial scope, the reticular synthesis of 3D COFs from pre-designed building units leading to new network topologies yet remains a demanding task owing to the shortage of 3D building units and inadequate reversibility of the linkages between the building units. In this work, by linking a tetragonal prism (8-connected) node with a square planar (4-connected) node, we report the first 3D COF with scu topology. The new COF, namely TUS-84, features a two-fold interpenetrated structure with well-defined porosity and a Brunauer−Emmett−Teller surface area of 679 m2 g-1. In drug delivery applications, TUS-84 shows efficient drug loading and sus-tained release profile.
Interfacial connections between organic perovskite/n+ silicon/catalyst that allow integration of solar cell and catalyst for hydrogen evolution from water
Authors: Gu Hengfei , Zhang Fei , Hwang Shinjae , Laursen Anders B. , Liu Xin , Park So Yeon , Yang Mengjin , Bramante Rosemary C. , Hijazi Hussein , Kasaei Leila , Feldman Leonard C. , Yeh Yao-Wen , Batson Philip E. , Larson Bryon W. , Li Mengjun , Li Yifei , Zhu Kai , Garfunkel Eric , Dismukes G. Charles
Published: August 2022

The rapidly increasing solar conversion efficiency (PCE) of hybrid organic-inorganic perovskite (HOIP) thin-film semiconductors has triggered interest in their use for direct solar-driven water splitting to produce hydrogen. However, application of these low-cost, electronic-structure-tunable HOIP tandem photoabsorbers has been hindered by the instability of the photovoltaic-catalyst-electrolyte (PV+E) interfaces. Here, photolytic water splitting is demonstrated using an integrated configuration consisting of an HOIP/n+silicon single junction photoabsorber and a platinum (Pt) thin film catalyst. An extended electrochemical (EC) lifetime in alkaline media is achieved using titanium nitride (TiN) on both sides of the Si support to eliminate formation of insulating silicon oxide, and as an effective diffusion barrier to allow high-temperature annealing of the catalyst/TiO2-protected-n+silicon interface necessary to retard electrolytic corrosion. Halide composition was examined in the (Cs1-xFAx)PbI3 system with a bandgap suitable for tandem operation. A fill factor (FF) of 72.5% was achieved using a Spiro-OMeTAD-hole-transport-layer (HTL)-based HOIP/n+Si solar cell, and a high photocurrent density of -15.9 mA/cm2 (at 0V vs reversible hydrogen electrode) was attained for the HOIP/n+Si/Pt photocathode in 1M NaOH under simulated one-sun illumination. While this thin-film design creates stable interfaces, the intrinsic photo- and electro-degradation of the HOIP photoabsorber remains the main obstacle for future HOIP/Si tandem PEC devices.
Molecular Capacitors: Accessible 6- and 8-electron Redox Chemistry from Dimeric “Ti(I)” and “Ti(0)” Synthons Support-ed by Imidazolin-2-Iminato Ligands.
Authors: Gomez-Torres Alejandra , Mavragani Niki , Metta-Magana Alejandro , Murugesu Muralee , Fortier Skye
Published: August 2022

Reduction of the diamagnetic Ti(III)/Ti(III) dimer [Cl2Ti(μ-NImDipp)]2 (1) (NImDipp = [1,3-bis(Dipp)imidazolin-2-iminato]-, Dipp = NC6H3-2,6-Pri2) with 4 and 6 equiv of KC8 generates the intramolecularly arene-masked, dinuclear titanium com-pounds [(μ-N-μ-η6-ImDipp)Ti]2 (2) and {[(Et2O)2K](μ-N-μ-η6:η6-ImDipp)Ti}2 (3), respectively, in modest yields. The compounds have been structurally characterized by X-ray crystallographic analysis and inspection of the bond metrics within the η6-coordinated aryl substituent of the bridging imidazolin-2-iminato ligand show perturbation of the aromatic system most consistent with two-electron reduction of the ring. As such, 2 and 3 can be assigned respectively as possessing metal centers in formal Ti(III)/Ti(III) and Ti(II)/Ti(II) oxidation states. Exploration of their redox chemistry reveal the ability to reduce several substrate equivalents. For instance, treatment of 2 with excess C8H8 (COT) forms the novel COT-bridged complex [(ImDippN)(η8-COT)Ti](μ-η2:η3-COT)[Ti(η4-COT)(NImDipp)] (4) that dissociates in THF solutions to give mononuclear (ImDippN)Ti(η8-COT)(THF) (5). Addition of COT to 3 yields heterometallic [(ImDippN)(η4-COT)Ti(μ-η4:η5-COT)K(THF)(μ-η6:η4-COT)Ti(NImDipp)(μ-η4:η4-COT)K(THF)2]n (6). Compounds 2 and 5 are the products of the 4-electron oxidation of 2, while 6 stands as the 8-electron oxidation product of 3. Reduction of organozides was also explored. Low temperature reaction of 2 with 4 equiv of AdN3 gives the terminal and bridged imido complex [(ImDippN)Ti(=NAd)](μ-NAd)2[Ti(NImDipp)(N3Ad)] (7) that undergoes intermolecular C-H activation of toluene at room temperature to afford the amido compound [(ImDippN)Ti(NHAd)](μ-NAd)2[Ti(C6H4Me)(NImDipp)] (8-tol). These complexes are the 6-electron oxidation products of the reaction of 2 with AdN3. Furthermore, treatment of 3 with 4 equiv of AdN3 produces the thermally sta-ble Ti(III)/Ti(III) terminal and bridged imido [K(18-crown-6)(THF)2]{[(ImDippN)Ti(NAd)](μ-NAd)2K[Ti(NImDipp)]} (10). Alto-gether, these reactions firmly establish 2 and 3 as unprecedented Ti(I)/Ti(I) and Ti(0)/Ti(0) synthons with the clear ca-pacity to effect multi-electron reductions ranging from 4 – 8 electrons.
Aplicación de métodos de Deep Learning en series de tiempo para el pronóstico de la situación macroeconómica en América Latina
Authors: Alegre Ibáñez Víctor Augusto , Lozano Aparicio Jose Martin
Published: August 2022

Los métodos de deep learning pueden ser aplicados para generar modelos de pronóstico. Nosotros trabajamos con el producto bruto interno (PBI) de seis países de América Latina: Argentina, Brasil, Chile, Colombia, México y Perú empleando indicadores macroeconómicos anuales y trimestrales, del Banco Mundial y la Comisión Económica para América Latina y el Caribe (CEPAL), respectivamente. Para el preprocesamiento de los datos, a las series trimestrales se agregaron como características adicionales la descomposición de estas en tendencia, estacionalidad y residuo, con la finalidad de aportar más información a los modelos. Además, se reemplazaron datos atípicos producto del impacto de la pandemia del COVID-19 en la economía mundial. Se construyeron modelos de Perceptrón Multi Capa, Red Neuronal Convolucional, LSTM, GRU y SeqToSeq para cada país y frecuencia de sus series, y luego se evaluaron mediante validación cruzada continua y métricas MAE, RMSE y MAPE. Los modelos óptimos varían por cada caso.
Clasificación de Organismos en Reinos utilizando Frecuencia de Codones de ADN
Authors: Palma Ttito Luis Beltrán
Published: August 2022

Este estudio de tiene por objetivo utilizar clasificadores de machine learning para predecir el reino al que pertenece un organismo por la frecuencia de uso de codones de ADN. Para ello se ha tomado 13 028 datos de organismos del GenBank distribuidos en once reinos y se los redujo a seis reinos (arqueas, bacterias, invertebrados, plantas, virus y vertebrados) con 9027 datos reagrupados. El proceso requirió la, depuración de atributos irrelevantes, el empleo de métricas de medición de clasificadores de exactitud, precisión, sensibilidad y puntuación, así como el ajuste de hiperparámetros de los modelos. Los algoritmos de clasificación fueron voting, bagging, boosting y stacking, usando KNN, AD, MLP, SVC y RF. La selección de atributos se hizo con random forest. El ensamble stacking, con sus modelos, predice mejor la clasificación de organismos en el presente estudio.