bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengembangan Video Praktikum Sederhana berbasis Discovery Learning Materi Stoikiomeri untuk Meningkatkan Keterampilan Siswa Kelas X
Authors: Muthiasari Dian , Muna Laili
Published: March 2023

Praktikum adalah bagian dari sebuah pembelajaran yang bertujuan agar siswa mendapatkan kesempatan untuk menguji. Praktikum dapat dilakukan secara langsung maupun tidak langsung melalui pengamatan video praktikum. Video praktikum dapat dikembangkan dengan berbagai inovasi, salah satunya pengembangan video praktikum sederhana berbasis discovery learning materi stoikiometri untuk meningkatkan keterampilan siswa kelas X. Penelitian ini bertujuan untuk mengetahui pengembangan video praktikum sederhana berbasis discovery learning dapat membantu meningkatkan keterampilan siswa dalam melakukan praktikum. Penelitian ini merupakan penelitian pengembangan (R&D) dengan model 4-D. Dimana pengembangan ini terdiri atas Defaine, Design, Develop, dan Deseminate. Namun penelitian pengembangan ini dibatasi sampai tahap Develop. Produk yang akan dikembangkan pada penelitian ini berupa video praktikum sederhana berbasis discovery learning materi stoikiometri. Produk ini divalidasi oleh tiga peer reviewer, satu ahli materi, dan satu ahli media. Kualitas produk dinilai oleh tiga guru kimia serta direspon oleh sepuluh siswa kelas X MIPA. Hasil penilaian kualitas produk oleh ahli materi mendapatkan presentase keidealan sebesar 95% dengan kategori Sangat Baik (SB). Penilaian oleh ahli media mendapatkan presentase keidealan sebesar 90% dengan kategori Sangat Baik (SB). Penilaian oleh guru kimia mendapatkan presentase keidealan sebesar 89,70% dengan kategori Sangat Baik (SB). Serta respon siswa yang menunjukkan peningkatan dalam keterampilan praktikum, hal ini dapat dilihat dari hasil jawaban pretest dan post tes kesepuluh siswa
Pengaruh Model Pembelajaran Guided Inquiry terhadap Critical Thinking dan Collaborative pada Materi Asam Basa
Authors: Anang Respati Anugrah
Published: March 2023

Pembelajaran pada kurikulum 2013 ini pendidik dituntut untuk menerapkan proses pembelajaran berbasis penelitian. Salah satu model pembelajaran dalam implementasi kurikulum 2013 adalah model pembelajaran inquiry. Penelitian ini merupakan penelitian kuasi eksperimen dengan desain nonequivalent control group design. Penelitian ini bertujuan untuk mengkaji pengaruh model pembelajaran guided inquiry terhadap critical thinking pada materi asam basa serta pengaruh model pembelajaran guided inquiry terhadap collaborative pada materi asam basa. Populasi dalam penelitian adalah seluruh peserta didik kelas XI IPA MAN 3 Sleman 2019/2020. Sampel yang digunakan adalah kelas eksperimen dan kelas kontrol. Instrumen yang digunakan adalah angket, lembar observasi dan soal pretest dan posttest.  Analisis data untuk angket dan lembar observasi menggunakan uji non paramterik yaitu uji Mann Whitney. Analisis data untuk soal pretest dan posttest menggunakan uji independent sample t-test. Uji hipotesis penelitian menggunakan uji non parametrik dengan menggunakan uji Mann Whitney. Hasil penelitian menunjukan bahwa (1) ada pengaruh model pembelajaran guided inquiry terhadap critical thinking pada materi asam basa berdasarkan hasil angket, observasi. Namun, tidak ada pengaruh berdasarkan hasil tes dikarenakan faktor penyajian soal memiliki tingkat kesukaran yang masih tergolong mudah dan sedang; (2) ada pengaruh yang siginifikan pada model pembelajaran guided inquiry terhadap collaborative pada materi asam basa berdasarkan hasil angket dan observasi. Hal ini menunjukkan bahwa penggunaan model pembelajaran guided inquiry dapat mempengaruhi critical thinking dan collaborative peserta didik.
Aplicação do modelo de avaliação LCR
Authors: Pianchi Rubens Vinicius , Panaino Brunna B. de Faria
Published: March 2023

A construção civil vem ganhando cada vez mais concorrência em um mercado competitivo e com mais exigências de seus clientes. Esse trabalho tem o objetivo, com base em uma pesquisa exploratória, aplicar o modelo de avaliação, Rapid Lean Construction - Quality Rating Model (LCR), para mensurar o grau de aplicação do pensamento enxuto em construtoras atuantes na cidade de Araras, Conchal e Mogi Guaçu.  A filosofia Lean Construction, baseada nos 11 princípios de Koskela (1992), tem o intuito de melhorar processos, aperfeiçoar tarefas, evitar desperdícios e aumentar a qualidade do serviço. Pelos resultados obtidos, constatou-se que o grau de aplicação enxuta tem um aumento proporcional de acordo com o porte das empresas, e há uma carência em alguns princípios do Lean Construction. O estudo não representa totalmente a realidade das empresas de construção civil, mas aplica um modelo de avaliação que apresente um indicativo da qualidade do processo de produção.
Utilização da manutenção autônoma como alternativa técnica-econômica para prevenção de falhas em ativos industriais
Authors: Aquino Maiane Santos de , Oliveira Mauro Macedo de
Published: March 2023

o presente artigo teve por objetivo propor e implantar à manutenção autônoma como alternativa técnico-econômica em um setor de corte de uma confecção de pequeno porte, situada em Juazeiro do norte-CE. Com isso espera-se estruturar um plano de manutenção dos equipamentos por meio de intervenções básicas desenvolvidas pelos próprios colaboradores da produção, bem como evidenciar os benefícios com à mudança de cultura organizacional e contabilizar eventuais ganhos financeiros com implementação da ferramenta. Para isto realizou-se uma pesquisa exploratória de natureza aplicada, com uma abordagem quanti/qualitativa. Afim de aprofundar o conhecimento sobre os temas abordados nesse trabalho, utilizou-se o método de pesquisa bibliográfica, e por meio de um estudo de caso pode-se apurar a real situação da empresa. Isto posto, o estudo apresenta o novo contexto da gestão de manutenção na empresa estudada, ilustrando os dados obtidos após a implantação da ferramenta. Sendo assim, espera-se obter com à aplicação da manutenção autônoma uma economia de R$ 750,00 por ano, ou seja, um racionamento de 75% dos custos que serão gerados com a função manutenção se comparado com a execução da tarefa realizada pelo técnico.
Modelo de simulação para balanceamento de processos
Authors: Silva Karla Fabrícia Neves da , Almeida Tiago dos Santos , Costa Júnior Nelson Dias da
Published: March 2023

A reciclagem é fundamental para a transformação dos resíduos sólidos descartados pela população, em matéria-prima para a composição de um novo produto na cadeia de suprimentos. Em 2010 o governo instituiu a Lei Nº 12.305, a qual estimulou a criação e o desenvolvimento de cooperativas ou de outras formas de associação de catadores de materiais reutilizáveis e recicláveis. Entretanto, ainda se percebe diversos impasses para a atuação destas, uma vez que comumente enfrentam problemas organizacionais, estruturais e produtivos. Desse modo, o presente trabalho tem como objetivo elaborar uma proposta de balanceamento do processo da Primeira Triagem em uma cooperativa de triagem de resíduos sólidos urbanos localizada na cidade de Goiânia (GO) por meio da simulação de sistemas. Assim, para sua realização foi utilizado a abordagem metodológica de pesquisa quali-quantitativa, tendo um caráter de uma pesquisa experimental. Além disso, o estudo contempla o desenvolvimento de um modelo de simulação a partir do software Flexsim, o qual foram seguidas as etapas descritas por Banks et al. (2005). Portanto, a partir desse trabalho foi possível compreender que para ter um aumento da produtividade deve-se ter um remanejamento dos operadores no processo da Primeira Triagem, tendo como melhor composição proposta o cenário 18, o qual proporcionou um crescimento de 8,3% no faturamento e na renda mensal dos cooperados, e ainda diminuiu a carga de trabalho das duplas 2 e 3 que operam na esteira. Vale destacar que essa porcentagem de crescimento encontrada pode representar muito para os cooperados, visto que são pessoas que se encontram em situação de vulnerabilidade social. Para estudos futuros recomenda-se investigar os demais processos da cooperativa para confirmar o cenário proposto neste trabalho e poder ter sua aplicação na cooperativa.
Práticas e barreiras ao Green Supply Chain Management (GSCM)
Authors: Marchesini Márcia Maria Penteado , Gaudêncio Bárbara Leonidas
Published: March 2023

Apesar das vantagens do Green Supply Chain Management (GSCM), existem barreiras que impedem a adoção das suas práticas pelas empresas. O presente artigo visa, por meio de uma Revisão Bibliográfica Sistemática (RBS) e dois estudos de caso, compreender melhor as práticas do GSCM e reconhecer as principais barreiras impostas a duas empresas (fabricante-fornecedor) do setor eletroeletrônico. Foram identificadas na literatura 25 práticas e 72 barreiras à implementação da GSCM. A partir dos estudos de caso, infere-se que a empresa foco A esteja mais desenvolvida em termos de GSCM e sustentabilidade ambiental do que seu fornecedor avaliado, devido à maior implementação de práticas do GSCM. Quanto às práticas, na Empresa A, a maior parte das práticas está totalmente implementada (19 delas), sendo 6 parcialmente implementadas e nenhuma não está implementada; e no Fornecedor, a maior parte está parcialmente implementada, somente 1 está totalmente implementada e 7 não estão implementadas. O entrevistado do fornecedor não soube opinar sobre várias práticas e barreiras. Quanto às categorias de barreiras, a empresa A enfrenta mais as barreiras de ‘stakeholders’ (12 barreiras), enquanto que o Fornecedor enfrenta mais barreiras de ‘conhecimento’ (8) e de ‘gestão’ (6).
Räumliche Einkommens- und Kaufkraftunterschiede im Kontext des Politikziels gleichwertiger Lebensverhältnisse in Bayern
Authors: Swiaczny Frank , Sulak Harun , Klüsener Sebastian
Published: March 2023

Untersucht wurden die räumlichen Einkommensunterschiede in Bayern im Kontext des in der bayerischen Verfassung und der Landesplanung verankerten Ziels gleichwertiger Lebensverhältnisse und Arbeitsbedingungen. Disparitäten der Einkommensverteilung spielen, unter Berücksichtigung räumlicher Kaufkraftunterschiede, als Messgröße gleichwertiger Lebensverhältnisse eine zentrale Rolle. Die in diesem Beitrag vorgestellte Analyse räumlicher Einkommensunterschiede nutzt konsistente Zeitreihendaten für die bayerischen Kreise im Zeitraum von 1991 bis 2018, die im Rahmen der volkswirtschaftlichen Gesamtrechnung ermittelt wurden. Anhand des Theil-Index kann für Bayern gezeigt werden, dass räumliche Disparitäten beim Primäreinkommen der Kreise durch Steuern und Sozialleistungen deutlich reduziert werden und allgemein in den letzten Jahrzehnten abgenommen haben. Dies gilt sowohl für Unterschiede zwischen und innerhalb von Regierungsbezirken wie auch für Unterschiede zwischen und innerhalb der nach dem siedlungsstrukturellen Kreistyp gruppierten Kreise, die den Urbanisierungsgrad abbilden. Eine Bereinigung um das regionale Mietpreisniveau reduziert die räumlichen Disparitäten des materiellen Lebensstandards weiter, wodurch großräumige interregionale Unterschiede an Bedeutung verlieren.
Synergetic effect of adsorption and photocatalysis by zinc ferrite-anchored graphitic carbon nitride nanosheet for the removal of ciprofloxacin under visible light irradiation
Authors: Tamyiz Muchammad , Doong Ruey-an
Published: March 2023

Ciprofloxacin (CIP) belongs to the fluoroquinolone antibiotic family. It is mostly used for the treatment of bacterial infections and highly recalcitrant to naturally decompose. The nanocomposite was successfully constructed by zinc ferrite nanoparticle anchored onto graphitic carbon nitride nanosheet (ZFNP–CNNS). The structural, morphological, and optical properties of the ZFNP–CNNS nanocomposite were investigated. Moreover, the enhanced photocatalytic performance of the ZFNP–CNNS nanocomposite was a result of the synergetic effect between adsorption and photocatalysis. The adsorption study showed that the ZFNP–CNNS nanocomposite has heterogeneous active sites with multilayers and the maximum CIP adsorption capacity was 15.49 mg g−1. However, the photodegradation efficacy of CIP reached up to five times compared to that of pristine CNNS. The high adsorption–photocatalytic synergetic effect of the ZFNP–CNNS nanocomposite has great application in wastewater treatment.
Classifiability of crossed products by nonamenable groups
Authors: Gardella Eusebio , Geffen Shirly , Kranz Julian , Naryshkin Petr
Published: March 2023

We show that all amenable, minimal actions of a large class of
nonamenable countable groups on compact metric spaces have dynamical comparison. This
class includes all nonamenable hyperbolic groups,
many HNN-extensions, nonamenable
Baumslag–Solitar groups, a large class of amalgamated free
products, lattices in many Lie groups,

A
~

2

{\widetilde{A}_{2}}

-groups,
as well as direct products of the
above with arbitrary countable groups. As a consequence, crossed products
by amenable, minimal and topologically free actions of such groups on
compact metric spaces are Kirchberg algebras in the UCT class,
and are therefore classified by K-theory.
Techno-economic analysis of integrating battery energy storage systems in industrial buildings
Authors: Ashabi Arman , Peiravi Mohammad Mohsen , Nikpendar Pouya
Published: March 2023

A techno-economic model is provided in this research to assess the viability of using building-integrated battery energy storage systems (BI-BESS) in industries. The factor of β as the ratio of energy to power is introduced in both economic and technical calculations to quantify the economic feasibility of the project with the help of a simple iterative algorithm for battery sizing. The load profile from an industrial building in Malaysia is considered for checking the effectiveness of the results. In addition, the optimum size of the battery achieved by comparing the optimum β from the benefit-cost ratio against β graph, and the ∆E against β graph. The results show that the optimum battery sizing achieved 84.05 kWh at β = 1.6. Furthermore, the battery parameters that affect the feasibility of using BI-BESS are evaluated. Finally, the results show that the proposed method is independent of the building load profile, and the same graph will apply to all buildings using the industrial tariff and current BESS technology for checking the feasibility of projects.
Temperature dependent constitutive plastic flow behaviour of titanium alloy Ti6Al4V
Authors: Mehta Kumud Kant
Published: March 2023

The constitutive relationship between stress and strain for titanium alloy Ti6Al4V has been investigated using tensile tests at four different temperatures that is room temperature, 200 °C, 400 °C, and 550 °C. Detail observations on the variation of nature of flow curves in the work hardening regime have been reported at different test temperatures. At room temperature and 550 °C, the flow curves are found to be linear in nature and follow the Hollomon relationship. The flow curves at 200 and 400 °C exhibit non-linear nature and demonstrate Ludwigson relationship. The various constant parameters of above relationships influence the overall strength and ductility of the alloy at different temperatures. The alloy shows presence of premature plastic instability or inflection points in the early period of flow curves and displays a fast decrease in work hardening rate at room temperature and 550 °C, which in turn results in lower values of strain to fracture.
Shade‐induced lncRNAPUAR promotes shade response by repressing PHYA expression
Authors: Zhu Tongdan , Yang Chuanwei , Xie Yu , Huang Sha , Li Lin
Published: March 2023

Shade avoidance syndrome (SAS) commonly occurs in plants experiencing vegetative shade, triggering a series of morphological and physiological changes for the plants to reach more light. A number of positive regulators, such as PHYTOCHROME‐INTERACTING 7 (PIF7), and negative regulators, such as PHYTOCHROMES, are known to ensure appropriate SAS. Here, we identify 211 shade‐regulated long non‐coding RNAs (lncRNAs) in Arabidopsis. We further characterize PUAR (PHYA UTR Antisense RNA), a lncRNA produced from the intron of the 5′ UTR of the PHYTOCHROME A (PHYA) locus. PUAR is induced by shade and promotes shade‐induced hypocotyl elongation. PUAR physically associates with PIF7 and represses the shade‐mediated induction of PHYA by blocking the binding of PIF7 to the 5′ UTR of PHYA. Our findings highlight a role for lncRNAs in SAS and provide insight into the mechanism of PUAR in regulating PHYA gene expression and SAS.
IP6‐stabilised HIV capsids evade cGAS/STING‐mediated host immune sensing
Authors: Papa Guido , Albecka Anna , Mallery Donna , Vaysburd Marina , Renner Nadine , James Leo C
Published: March 2023

HIV‐1 uses inositol hexakisphosphate (IP6) to build a metastable capsid capable of delivering its genome into the host nucleus. Here, we show that viruses that are unable to package IP6 lack capsid protection and are detected by innate immunity, resulting in the activation of an antiviral state that inhibits infection. Disrupting IP6 enrichment results in defective capsids that trigger cytokine and chemokine responses during infection of both primary macrophages and T‐cell lines. Restoring IP6 enrichment with a single mutation rescues the ability of HIV‐1 to infect cells without being detected. Using a combination of capsid mutants and CRISPR‐derived knockout cell lines for RNA and DNA sensors, we show that immune sensing is dependent upon the cGAS–STING axis and independent of capsid detection. Sensing requires the synthesis of viral DNA and is prevented by reverse transcriptase inhibitors or reverse transcriptase active‐site mutation. These results demonstrate that IP6 is required to build capsids that can successfully transit the cell and avoid host innate immune sensing.
(Not) getting what you want: frustration and emotion regulation in children with sex chromosome trisomies
Authors: Kuiper Kimberly , Swaab Hanna , Tartaglia Nicole , van Rijn Sophie
Published: March 2023

The presence of an additional X or Y chromosome (sex chromosome trisomies, SCT) is associated with an increased risk for neurodevelopmental difficulties, including socio-emotional problems, across the life span. Studying emotion regulation in young children with SCT could signal deviations in emotional development that serve as risk markers to guide clinical care. This study explored the presence and variety of emotion regulation strategies in 75 SCT children and 81 population-based controls, aged 1–7 years, during a frustration-inducing event in which physiological (heart rate) and observational data (behavioral responses) were collected. Children with SCT were equally physiologically aroused by the event as compared to controls. However, they showed more emotion regulation difficulties in terms of behavior compared to controls that were not explicable in terms of differences in general intellectual functioning. Specifically, they had a more limited range of behavioral alternatives and tended to rely longer on inefficient strategies with increasing age. The field of practice should be made aware of these early risk findings regarding emotion regulation in SCT, which may potentially lay the foundation for later socio-emotional problems, given the significant impact of emotion regulation on child and adult mental health outcomes. The current results may help to design tailored interventions to reduce the impact of the additional sex chromosome on adaptive functioning, psychopathology, and quality of life.
Solar cells based on CdTe thin films (Part II)
Authors: Mazur T.M. , Mazur M.P. , Vakaliuk I.V.
Published: March 2023

This paper discusses the use of semiconductor solar cells based on thin-film cadmium telluride (CdTe) in modern energy production. The advantages and disadvantages of using CdTe thin-film solar cells are analyzed, and arguments are presented in favor of the implementation of mass production technologies for CdTe solar modules, which can compete with silicon analogs in terms of compromise between efficiency and cost. The physical and chemical properties of the binary Cd-Te system are described, and the relationship between the physical, chemical, electrical, and optical properties of CdTe is analyzed, making it attractive for use in thin-film solar cells. Special attention is given to the investigation of photovoltaic properties, which are important parameters for determining photoconductivity, and the advantages and disadvantages of CdTe film photovoltaic properties are discussed. CdTe thin-film heterostructures (HSs), which are important components of modern solar cells, are considered, and their main advantages and disadvantages are described. It is argued that simple methods of manufacturing and forming HSs, which do not require complex and expensive equipment, are an important advantage of CdTe-based solar cell technology.
Laser-modified nanocrystalline NiMoO4 as an electrode material in hybrid supercapacitors
Authors: Popovych O.M. , Budzulyak I.M. , Khemii M.M. , Ilnytskyi R.V. , Yablon L.S. , Popovych D.I. , Panko I.I.
Published: March 2023

The nanocrystalline NiMoO4 obtained as a result of hydrothermal synthesis was exposed to laser radiation with a pulse energy of 70 mJ/cm2 for 5 minutes. The phase composition and size of crystallites of the triclinic structure of NiMoO4 were determined by X-ray analysis. The average crystallite size was 18 nm for laser-irradiated nickel molybdate. Impedance analysis was used to analyze the temperature dependence of the electrical conductivity of laser-modified NiMoO4. The frequency index of the power law, determined by the nonlinear approximation method, was 0.5-0.67, which corresponds to the hopping mechanism of charge carriers. The electrochemical behavior of NiMoO4 was studied using cyclic voltammetry and galvanostatic charge/discharge testing. The laser-irradiated NiMoO4 reaches a specific capacitance of 553 F/g at a scan rate of 1 mV/s. The hybrid electrochemical system based on electrodes of modified NiMoO4 and carbon material provides high Coulombic efficiency (95%) for a significant number of charge/discharge cycles.
Micromammals, taphonomy, paleoenvironments and human occupation during the Holocene in Arroyo Malo-3 (west-central Argentina)
Authors: Fernández Fernando J. , De Santis Luciano J. M. , Neme Gustavo A.
Published: March 2023

Se identificaron taxonómicamente restos de micromamíferos provenientes del sitio arqueológico Arroyo Malo-3 (AMA-3, 34º51’18’’S, 69º53’00’’O; suroeste de Mendoza, Argentina) y se analizaron aspectos tafonómicos y paleoambientales. Los restos de micromamíferos (NISP = 7239, MNE= 7211, MNI = 730) fueron recuperados de unidades correspondientes al Holoceno (Unidad III = 8900-3810 años 14C AP; Unidad II = 3810-2200 años 14C AP; Unidad I = 2200-~100 años 14C AP). Las evidencias tafonómicas tales como egagrópilas preservadas en la estratigrafía, patrones de abundancia relativas de partes esqueletales y restos con marcas de digestión moderada y fuerte, indican que el principal agente acumulador de los conjuntos de micromamíferos recuperados de AMA-3 podrían haber sido aves Accipitriformes, posiblemente Geranoaetus melanoleucus (águila mora) o Buteo polyosoma (aguilucho común). El escaso registro de huesos meteorizados, la ausencia de marcas de pisoteo, raíces, corrosión sedimentaria y transporte hídrico, junto a la evidencia de numerosos especímenes con impresiones de óxido de manganeso, sugieren que los mismos tuvieron un enterramiento rápido y buena preservación, aunque con altos niveles de humedad. Los conjuntos de micromamíferos de AMA-3 mostraron una marcada estabilidad taxonómica, con algunos cambios menores hacia el Holoceno tardío. El cambio mayor ocurrió en los conjuntos actuales cercanos al sitio, señalando un aumento de la arbustización atribuible al impacto antrópico producido por el ganado doméstico, afianzado en el sur de Mendoza desde el siglo XIX. La información tafonómica y paleoambiental presentada provee una estructura relevante para optimizar los estudios biogeográficos y de sistemas de subsistencia de los cazadores y recolectores del sur de Mendoza durante el Holoceno.
Diversidad faunística en La Arcillosa 2: el aprovechamiento de aves por cazadores-recolectores del norte de Tierra del Fuego
Authors: Tívoli Angélica M. , Salemme Mónica C.
Published: March 2023

Se presentan los resultados del análisis de restos óseos de aves provenientes de La Arcillosa 2. Este sitio es un conchero multicomponente, datado entre 5500 y 3700 14C años AP, se ubica en la estepa fueguina (53º 34.450’S-68º 02.257’ O) sobre la margen derecha del río Chico (Tierra del Fuego) a 2 km al oeste de la actual costa atlántica, vinculado a lagunas interiores de características salobres, que habrían favorecido el acceso a una importante diversidad de aves. El contexto estudiado se compone de moluscos y de un conjunto de vertebrados asociados a artefactos líticos confeccionados sobre materias primas diversas. El conjunto avifaunístico aquí analizado alcanza el 25,2% del total del registro zooarqueológico. Entre los taxa de aves identificados, se destacan particularmente los anátidos, que muestran mayor intensidad de aprovechamiento que otras especies; esto se infiere a partir de las huellas de corte –recurrentes en ciertas partes esqueletales– y de los indicadores de combustión. También se registraron cormoranes, pingüinos, rapaces y passeriformes, aunque en proporciones menores.
Consumo de recursos animales de porte menor durante el Holoceno tardío en el sudoeste de la provincia de Buenos Aires (Argentina)
Authors: Frontini Romina , Bayón Cristina
Published: March 2023

El sitio arqueológico Puente de Fierro está ubicado, dentro de la región pampeana, en el Sudoeste de la provincia de Buenos Aires, Argentina. Está emplazado en las cercanías de un entorno de humedal que concentra una notable riqueza y diversidad de fauna y de flora. A partir del análisis de la cultura material y de la arqueofauna se interpretó como un campamento residencial donde se desarrollaron múltiples actividades domésticas hacia ca. 2000 años AP. En este trabajo se presenta la información arqueofaunística referida a las especies de porte menor y se discute la importancia que las mismas tuvieron en la alimentación de los cazadoresrecolectores. Se hallaron claras evidencias de procesamiento y consumo de Myocastor coypus coipo), Chaetophractus villosus (peludo), Anas sp. (pato) y Fulica sp. (gallareta). Finalmente se compara con la información proveniente del área y de la región pampeana, en especial en relación con los modelos de aprovechamiento faunístico.
Fauna menor en sitios de momentos históricos
Authors: Lanza Matilde M.
Published: March 2023

Se presentan los resultados del análisis zooarqueológico de los restos de fauna menor que forman parte de los conjuntos arqueofaunísticos hallados en contextos urbanos y rurales del siglo XIX en la ciudad y provincia de Buenos Aires. La muestra analizada proviene de los sitios históricos urbanos Casa Fernández Blanco (Ciudad de Buenos Aires), Casa Ameghino 1 (ciudad de Luján) y rurales Siempre Verde (partido de Benito Juárez), Santa Rosa (partido de Tandil). Se evalúa su presencia, y se diferencia dentro del conjunto arqueofaunístico aquellos taxones y/o partes esqueletarias que ingresaron al sitio por causa de agentes tafonómicos o procesos de formación postdepositacionales de aquellos producto de actividades antrópicas. Finalmente, se discute qué rol cumplieron en la alimentación u otro tipo de actividad cultural los restos de fauna menor que ingresaron a los sitios por causas antrópicas. Se compara su importancia intrasitio en relación con los otros taxones presentes y entre contextos urbanos y rurales. Además se considera la información proveniente de los documentos escritos y visuales con la finalidad de presentar un análisis más integral.
El trastorno de la comunicación social (TCS): un enfoque interdisciplinar entre la psiquiatría y la pragmática
Authors: Gómez Caballero Iván
Published: March 2023

Este trabajo pretende, por un lado, realizar un status quaestionis sobre el trastorno de la comunicación social (TCS), analizando las diversas nomenclaturas que ha recibido desde los años 80 hasta la actualidad y, por otro, explicar a partir de la pragmática (principalmente desde las teorías de Paul Grice, John Austin y las teorías pragmáticas de la cortesía) el cuadro clínico que ha desarrollado la Asociación Psiquiatras Americanos en el DSM-5 , manual de referencia para los estudios psiquiátricos que focaliza una parte de su investigación en los trastornos del lenguaje.
Comunidades cronópicas: encuentros entre Julio Cortázar y la Acción Poética
Authors: Relva Lisandro
Published: March 2023

El presente trabajo procura indagar desde una perspectiva archivística el intercambio sostenido entre Julio Cortázar y el Movimiento Nueva Solidaridad, con motivo del Encuentro de poetas celebrado en México D.F. en febrero de 1964, para estudiar ahí las formas de comunidad que tienen lugar. Mediante la reunión de ciertas cartas de la correspondencia de Cortázar, junto con el boletín Arte y rebelión , resultante del evento intelectual, este trabajo propone una vía de acceso poco visitada para releer la producción cortazariana en ese momento de convergencias poético-políticas en América Latina y el Caribe. La hipótesis principal plantea la emergencia de una cierta comunidad cronópica que tensiona y a la vez se conjuga con la comunidad intelectual latinoamericana nucleada en torno a Casa de las Américas , expresando así la ambivalencia y la complejidad del pulso comunitario que dinamiza la escritura de Cortázar.
Compressive strength properties perpendicular to the grain of larch cross-laminated timber
Authors: Song Yo-Jin , Hong Soon-II
Published: March 2023

As timber tends to be weak against the load perpendicular to grains, it can be important to study the consequences of applying loads perpendicular to larch cross-laminated timber (CLT) composed of multiple larch laminae. Compression tests were conducted perpendicular to the in-plane and out-of-plane grains of Japanese larch CLT. Out-of-plane average compressive strength, average yield strength, and average compressive stiffness perpendicular to the grain of the larch CLT were 11.94 N/mm2, 7.30 N/mm2, and 7.30 N/mm3, respectively, whereas the in-plane average compressive strength, average yield strength, and average compressive stiffness perpendicular to the grain of the larch CLT were 21.48 N/mm2, 21.18 N/mm2, and 18.72 N/mm3, respectively. The in-plane compressive strength and yield strength showed a statistically significant relationship with the density of CLT, the modulus of elasticity measured by longitudinal vibration (MOELV), and the average MOELV of the laminae constructing the cross-laminated timber. The in-plane yield strength was affected by the MOELV of the outer laminae and the average MOELV of the larch cross-laminated timber. The compressive strength properties were most affected by the loading surface of the CLT. The variation between the moisture content and compressive strength properties of the CLT, however, was not statistically significant.
Influence of diameter and quality of beech logs on the potential energy of sawmill residues
Authors: Popadić Ranko , Furtula Mladen , Milić Goran
Published: March 2023

The influence of log diameter and log quality were studied relative to the potential heat energy produced from wood residue. Research was conducted on beech sawmill logs (30 cm to 49 cm in diameter and 4 m in length) of different qualities. Logs with greater diameters and of better quality increased the amount of products and decreased the amount of residue. A decrease in the diameter and quality of beech logs increased the total energy capacity, ranging between 840 kWh/m3 (highest quality logs, 40 cm to 49 cm in diameter) and 1,350 kWh/m3 (lower quality logs, 30 cm to 34 cm in diameter). Drying the lumber produced from logs of small diameters used less than 10% of the potential heating energy. However, logs of 40 cm to 49 cm in diameter increased this usage to 33%. When burner losses and drying energy losses were calculated, there was approximately 430 kWh/m3 to 960 kWh/m3 of leftover energy. This could be used for various purposes or it could be sold. The amount of obtained energy was influenced more by log diameter than by the log quality.
Characterization of different types of agricultural biomass and assessment of their potential for energy production in China
Authors: Tan Furong , He Lin , Zhu Qili , Wang Yanwei , Hu Guoquan , He Mingxiong
Published: March 2023

Agricultural residues are among the most important and abundant biomass resources in the world. This study aimed to highlight the characterization of common agricultural residues in China. Six indicators, including biomass, cellulose, hemicelluloses, lignin, caloric value, and ash, were selected to evaluate agricultural residue for its potential energy utilization using grey relational analysis. The results showed that residues of grain crops, including corn (439.1 million tons, 46.6%), rice (207.1 million tons, 21.5%), and wheat (150.7 million tons, 16.0%) were the top three agricultural residues, accounting for 84.1% of total Chinese agricultural residues. Among the agricultural residue samples, rice, wheat, and corn exhibited relatively low ash content; and sugarcane, cotton, and rape residue exhibited low lignin content. Rape, corn, and hemp showed higher cellulose content; and rice, wheat, and corn exhibited higher hemicellulose content. Among the agricultural residues, hemp, corn, and sugarcane showed higher caloric value compared to other residues. According to the grey relational analysis, these combined properties have shown that corn, rice, and wheat can act as potential candidates for energy utilization. The evaluation results were essentially identical to the performance of agricultural residues. Therefore, the comprehensive evaluation of agricultural residues provides sound scientific evidence for their use in energy production.
Bio-deinking of mixed office waste paper by Penicillium citrinum NCIM-1398 and its comparative study with conventional chemical deinking
Authors: Biswas Pallavi , Bharti Amit K. , Kadam Ashish , Dutt Dharm
Published: March 2023

Penicillium citrinum NCIM-1398 is a co-producer of endo β-1,4-glucanase, xylanase, and amylase enzymes. The synergistic effect of the enzymes present in the cocktail was found to be advantageous in deinking white mixed office waste (MOW) paper. Enzymatic deinking of MOW reduced the dependence on chemicals by up to 50% during chemical deinking and improved optical properties compared with the chemical deinking process. The chemi-enzymatic approach improved pulp brightness by 12.6% compared with MOW pulp. The ERIC (Effective residual ink concentration) value was reduced by up to 39.2%, whereas the strength properties of tear index, tensile index, and burst index achieved gains of 3.2%, 9.9%, and 6.2%, respectively, compared with the control. Whereas chemi-enzymatic treatment showed a reduction of 67.1% in COD and 61.8% in BOD, and there was an increase of 15.4% in total solid of effluents respectively, compared with the respective controls. Scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD) studies revealed that the pulp was modified by enzymatic and chemi-enzymatic treatments, which facilitate ink removal during deinking of pulp.
The influence of refining heterogeneity on paper properties
Authors: Bäckström Marie , Mohlin Ulla-Britt
Published: March 2023

This paper studies the impact of refining heterogeneity on paper property development and pressability. Three trials were performed in different refining equipment. The results showed that the strength development was due mostly to the water retention value (WRV) and the fiber straightness. Curly fibers require more energy to reach a given strength property. A heterogeneous refining, which in this case was performed by mixing less refined and highly refined pulps in different proportions, increased the energy requirement to reach a given tensile index or tensile stiffness index. The pressability of the pulps was not affected by the refining heterogeneity. At a given WRV, the pulp had the same solids content after dynamic pressing independent of the degree of heterogeneity.
Color changes of compression and opposite spruce wood (Picea abies L. Karst.) affected by different drying conditions
Authors: Klement Ivan , Vilkovská Tatiana , Uhrín Miroslav
Published: March 2023

The color changes of compression and opposite spruce (Picea abies L. Karst) wood were evaluated as a function of different drying conditions. Compression wood samples and their corresponding opposite wood samples from the opposite part of the log were compared after three different drying modes. The color of the samples before and after the drying was characterized using the color coordinates L*, a*, b*, C*ab, C, h*, Sab, and the color difference (ΔE*) in the standard color space according to the International Commission on Illumination (CIELAB). The drying temperature was the most remarkable factor for discoloration of the samples. The lightness (L*) of the samples decreased with increased temperature. However, darkening was more pronounced in the opposite wood samples. The overall color difference (ΔE*) was found to be higher in the opposite wood. The compression wood was more saturated in color with a deeper hue angle due to the drying process.
Effects of thermal modification on selected physical properties of sapwood and heartwood of black poplar (Populus nigra L.)
Authors: Kozakiewicz Paweł , Drożdżek Michał , Laskowska Agnieszka , Grześkiewicz Marek , Bytner Olga , Radomski Andrzej , Zawadzki Janusz
Published: March 2023

Black poplar (Populus nigra L.) was subjected to thermal modification in superheated steam. The modification was performed at 160 °C, 190 °C, and 220 °C for 2 h. The equilibrium moisture content of the black poplar wood was examined when it was exposed to 76% ± 2% relative humidity at a temperature of 20 °C ± 2 °C. The thermal modification of the poplar wood changed its moisture-exchange-related physical properties to a large extent. The effects of temperature on individual properties (density, mass loss, hygroscopicity, swelling, and water absorption) were diverse, and the intensity of these effects increased with increasing temperature of the thermal treatment process. In most cases, no significant differences were observed between the changes in properties of the sapwood and the heartwood.
Transportation Mode Selection for Organ Transplant Networks by a New Multi-Criteria Group Decision Model Under Interval-Valued Intuitionistic Fuzzy Uncertainty
Authors: Salimian Sina , Mousavi Seyed Meysam , Turskis Zenonas
Published: March 2023

This study introduces a new multi-criteria group decision-making model in organ transplant transportation networks under uncertain situations. A new combined weighting approach is presented to obtain expert weights with various kinds of opinions by integrating similarity measure and subjective judgments of experts. Also, the CRITIC approach is given to obtain transportation criteria weights. Finally, a novel integrated ranking approach is proposed to calculate the rank of each alternative based on ideal point solution and relative preference relation (RPR) methods. This study regards an interval-valued intuitionistic fuzzy set to cope with the vagueness of uncertain conditions in a real case study.
Anthropomorphic Figurines with Hunched Backs and Deformed Breasts in Kodjadermen–Gumelniţa–Karanovo VI Culture
Authors: Stavreva Vanya
Published: March 2023

A number of unusual anthropomorphic figurines featuring hunched backs and conical protrusions on their chests have been unearthed in several settlements that belong to the area of the Kodjadermen–Gumelniţa–Karanovo VI culture. The figurines have not been subject to a special study in scholarly literature so far and hence, no attempt at their interpretation has ever been made.The study discusses the possibility that these unusual images reflect a physical disability caused by Pott’s disease. Anthropologic research on skeletal remains of the Eneolithic population of Europe has established pathological changes that are consistent with this disease. Its cause, Mycobacterium tuberculosis, has been identified also through biomolecular study of human bones, which confirms the spread of tuberculosis in this period. The author furthermore argues about the possible use of this type of figurines in magic rituals. In addition, some ethnographic data is supplied for the use of clay anthropomorphic images in health-bringing and healing rites.
Urbanization the Eastern Borders of Old Europe
Authors: Videiko Mykhailo
Published: March 2023

Maria Gimbutas created an impressive picture of Old Europe, using, among others, materials from Trypillia Culture. From the very beginning, she took into account new archaeological discoveries from the 70s of the 20th century, namely, information about the large settlements. But fifty years ago, their studies were just beginning and this topic was not particularly popular among researchers outside of Ukraine. Today, news about life on the eastern borders of Old Europe, where these megasites, appeared more than 6000 years ago, appeares on the pages of leading archaeological publications and becomes the subject of discussions among archaeologists from different countries.
Elk-boat Depictions in the Ethnoarchaeological Context
Authors: Mykhailova Nataliia
Published: March 2023

Numerous depictions of elk-shaped ships are discovered in rock art of the Northern Europe and Siberia, dating from the Mesolithic time to the Bronze age. Usually they are interpreted as Boats of the Deads, connecting the Worlds. The water is the symbol of a border between Worlds in traditional societies. Northern Europe archaeological findings prove that images of the Cervid as a mediator between Worlds and the Boat of the Deads became connected in the Stone Age. Red deer (Cervus Elaphus) remnants were found in burials from the Mesolithic period to the Iron Age. Cemeteries of humans in boats with deer antlers or elk-headed stuffs were discovered at the Mesolithic sites of Denmark (Vedbaeck, Mollegabet) and in Northern Russia (Bolshoy Oleniy Ostrov). Being of a great significance in the mytho-ritual complex of the Stone Age population in Europe, Elk-Boat as the transport between Worlds is preserved in folklore of South-East European people. Mythological motif of the Cervid, sailing on the Sea or the River, with the sleeping maiden on his antlers, is widespread in South and Eastern Europe.
The oscillatory effect of chemical constituents, dynamics, barometric, and thermodynamics on weather over Accra, and Bissau
Authors: Padi Michael
Published: March 2023

A sharp contrast in atmospheric weather conditions prevailed over Accra and Bissau and that led to the oscillatory nature of weather conditions between the two cities. During the latter part of July 2022, Bissau experienced persistent and continuous rains whilst Accra remained fair and dry. It was realized that when an air parcel rises, low-pressure system is created at the surface but when the air parcel sinks, high pressure forms. Pressures were predominantly high over Accra and low over Bissau during that time. Models from CAMS were used to study chemical compositions to determine the concentration and effect of Sulphur Dioxide (SO2) over the two cities. Wind behavior over various levels in the atmosphere was considered using model products from ECMWF, satellite imagery from EUMETSAT, and t-phi gram from the Air Resources Laboratory of NOAA to study the thermodynamics of the skies. METAR, hourly observations made by the National Meteorological Offices from the two cities were retrieved from the AADS and Ogimet to study the barometric nature during the period. Results show that the atmosphere over Bissau had been less polluted as compared to that of Accra which makes Bissau to be persistently cloudy. Atmospheric chemical constituents would have to compete for moisture if the concentration is high and does not support the sustenance of massive clouds capable of producing rain. It has been realized that the development of anticyclone, an anticlockwise circulation at the 200 hPa level contributed to the cloud sustenance over Bissau during that time.
Parents Have More to Say: Comments From the Child HCAHPS Single Question Versus a Narrative Item Set
Authors: Quigley Denise D. , Predmore Zachary
Published: March 2023

BACKGROUND AND OBJECTIVES

Narrative comments from the Child Hospital Consumer Assessment of Healthcare Providers and Systems (CAHPS) survey from a single open-ended question are specific enough to make improvements (ie, actionable). A multiitem set might yield more insights. We compare comments from the single-item Child Hospital CAHPS and the 6-item beta version Narrative Item Set (NIS).

METHODS

The Child HCAHPS NIS was piloted 2021 to 2022 at an urban children’s hospital that fielded the Child HCAHPS survey since 2017. We analyzed 382 NIS comments (n = 77 parents and guardians) and compared them to single-item comments.

RESULTS

NIS respondents wrote nearly 6 times the word count compared with respondents presented with a single item, with 75% of NIS respondents providing narrative to 5 or 6 NIS items. Single-item comments were more positive (57% vs 39% NIS), yet most (61%) NIS comments included at least 1 negative remark (vs 43% single-item). Eighty-two percent of NIS comments included content on the Child HCAHPS survey (vs 51% single-item). The most common Child HCAHPS topics in NIS narratives were about being kept informed of child’s care and whether doctors treated respondents with courtesy and respect. More NIS comments were deemed actionable (69% vs 39% single-item), with 1 NIS item – what a parent wished had gone differently– eliciting the most-actionable narrative.

CONCLUSIONS

The multi-item NIS elicited high percentages of comments with sufficient detail to make improvements. A large NIS demonstration is needed to assess how quality leaders and frontline staff use NIS comments to improve inpatient pediatric care.
The 2022 Joseph W. St Geme, Jr, Leadership Award Address—Diversity and Social Justice: The Field of Pediatrics Can and Should Lead
Authors: Mendoza Fernando S.
Published: March 2023

The following is an address given by the 2022 recipient of the Joseph W. St. Geme, Jr. Leadership Award, presented by the Federation of Pediatric Organizations at the Pediatric Academic Societies meeting on April 22, 2022.
El papel del impuesto al carbono en la transición energética: una revisión de su aplicación en Colombia
Authors: Castiblanco Rozo Carmenza
Published: March 2023

El impuesto al carbono se promociona como un instrumento de política ambiental útil para mitigar las emisiones equivalentes de carbono. Se considera que, con su adecuada aplicación, se puede contribuir a avanzar hacia la transición energética, por ser un instrumento que fomenta la inversión en infraestructura y tecnologías no contaminantes, como las energías eólica, solar y la demanda de vehículos híbridos y eléctricos. Después de la pandemia, la reactivación económica ha aumentado de manera significativa la demanda de energía a nivel mundial, lo que ha traído como consecuencia una subida de emisiones de carbono a un máximo histórico. Se espera que con la aplicación del impuesto al carbono se logren mitigar las emisiones e incentivar la migración hacia las energías limpias. A partir de una revisión de la literatura internacional, en el presente artículo se analizan los impactos económicos y ambientales de la aplicación del impuesto al carbono, especialmente, para los países desarrollados, donde han sido ampliamente documentados. Específicamente, se describen las características y resultados preliminares de la aplicación de este impuesto en Colombia.