bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGEMBANGAN E-MODUL POLA BUSANA CAD DENGAN SOFTWARE RICHPEACE PADA MATA KULIAH PEMBUATAN POLA DENGAN KOMPUTER
Authors: RAMADHANI YASHINTA
Published: June 2023

Abstrak. Tujuan penelitian ini adalah untuk menganalisis prosedur dan hasil kelayakan pengembangan e-modul dengan mengujikan hasil produk kepada expert judgment berupa ahli materi dan ahli media. Jenis penelitian ini adalah Research and Development (R&D) dengan metode pengumpulan data menggunakan teknik dokumentasi dan observasi. Metode pengembangan mengambil 5 Langkah Penggunaan Metode Penelitian dan Pengembangan dari Sugiyono  yang terdiri dari potensi dan masalah, pengumpulan data, desain produk, validasi dan revisi. Berdasarkan penelitian yang telah dikembangkan sesuai prosedur diperoleh hasil berupa e-modul sebagai jalan keluar dari masalah yang ada pada Mata Kuliah Pembuatan Pola dengan Komputer. Teknik pengumpulan data berupa observasi dan dokumentasi. Pada penelitian ini menggunakan lembar observasi untuk ahli materi dan ahli media. Instrumen yang digunakan dalam penelitian berupa skala penilaian dengan skala Linkert. Metode dokumentasi digunakan untuk memperoleh data tentang daftar nilai mahasiswa, RPS Mata Kuliah Pembuatan Pola dengan Komputer, dan materi-materi terkait CAD software Richpeace. Penilaian oleh ahli materi diperoleh persentase rata-rata sebesar 97,02% dan tergolong dalam interpretasi “Sangat Layak”. Hasil penilaian oleh ahli media diperoleh persentase rata-rata sebesar 93,63% dan tergolong dalam interpretasi “Sangat Layak”. Sehingga dapat disimpulkan E-Modul Pembuatan Pola Busana CAD Menggunakan Software Richpeace sangat layak digunakan sebagai alternatif media pembelajaran pada Mata Kuliah Pembuatan Pola dengan Komputer. 

Kata Kunci: Media Pembelajaran, Pengembangan E-Modul, Pola busana CAD, Richpeace
KELAYAKAN PRODUK KEBAYA MODIFIKASI WASTRA NUSANTARA DENGAN TEKNIK ZERO WASTE PATTERN
Authors: YULIANI AYU EKA WULAN , PRASETYANINGTYAS WULANSARI
Published: June 2023

Abstrak. Penelitian ini memiliki tujuan untuk mengetahui kelayakan produk kebaya modifikasi dengan penerapan teknik zero waste pattern berbasis wastra Nusantara. Penelitian ini menggunakan metode deskriptif persentase dengan pendekatan kuantitatif. Variabel dalam penulisan ini adalah variabel tunggal. Populasi dalam penelitian ini adalah siswa tata busana kelas XI SMK Ma’arif Kota Magelang sejumlah 26 panelis. Teknik pengumpulan data yang digunakan adalah dokumentasi dan observasi dengan lembar pengamatan. Hasil analisis kelayakan yang diperoleh pada penelitian  ini menunjukkan bahwa produk kebaya modifikasi wastra Nusantara dengan teknik zero waste pattern diperoleh persentase 89% dengan kategori sangat layak. Adapun indikator kinerja memperoleh persentase 26%, keistimewaan tambahan memperoleh persentase 24,2%, kesesuaian dengan spesifikasi memperoleh persentase 24,7%, estetika memperoleh persentase 25,5%.

Kata Kunci: Kebaya, wastra Nusantara, zero waste pattern.
Arqueología experimental, algo más que un juego
Authors: Baena Javier
Published: June 2023

No me cabe la menor duda que a estas alturas del desarrollo de la investigación en la Prehistoria, la Arqueología Experimental es aceptada por todos como una fuente esencial de información sobre actividades del pasado, tan importante como la propia etnoarqueología, la palinología, la paleontología o cualquier otra disciplina ligada a la Prehistoria. Esto no significa que no reconozcamos importantes diferencias en el tipo de información que estas ofrecen, y el modo en que debe ser tratada. Cada cosa en su sitio.
Nuevo sistema de retoque por presión, mediante el empleo de palanca
Authors: Baena Javier , Maqueda Raúl
Published: June 2023

Durante los últimos anos, venimos experimentando distintos procedimientos para llevar a cabo el trabajo de retoque por presión sobre materiales líticos de nuestro entorno. En la región central de España (Madrid), existen diferencias acusadas en los materiales líticos aptos para el trabajo de talla. Se puede, aunque cada vez con mas dificultad, localizar fragmentos de muy distinta naturaleza (ópalos, sílex y cuarcitas). El primero presenta muy buena aptitud de cara a la talla, pero generalmente aparece en muy mal estado de conservación, con muchas fisuras que suelen manifestarse durante el proceso de trabajo con los inconvenientes que ello implica. El sílex por el contrario se presenta de forma abundante y en buen estado, pero son escasos los fragmentos que permiten un tratamiento térmico y por tanto un trabajo cómodo por presión. La cuarcita por último, suele ser de muy mala calidad, y no permite un trabajo por presión, dada su dureza.
Parámetros técnicos de obtención de lascas de retoque
Authors: Bourguignon Laurence
Published: June 2023

Los modos de obtención de las lascas de retoque expuestos en este artículo se han deducido a partir de los estigmas técnicos que existen en las lascas arqueológicas, en los negativos de los filos y en los resultados obtenidos mediante la experimentación.El estudio se ha limitado a la actividad de acondicionamiento de un soporte desde su selección hasta la obtención de un filo especifico.
Secado artificial de la madera en la fabricación de arcos, flechas y útiles
Authors: Suárez Yubero Arturo
Published: June 2023

En algunos ambientes rurales de la provincia de Ávila se sigue utilizando, en nuestros días, dos técnicas para secar la madera de forma artificial:-con el calor del fuego.-con el calor del estiércol.
Cerámica prehistórica y experimentación
Authors: Clop Xavier
Published: June 2023

Los estudios sobre cerámicas prehistóricas en la Península Ibérica se suelen caracterizar por centrarse en la definición de los caracteres morfo-tipológicos de estas manufacturas como medio para establecer su posible marco cronológico. La incorporación de otros enfoques al estudio de las cerámicas, como los estudios de caracterización de la materia prima, estudios tecnológicos, etc, está siendo, desafortunadamente, un proceso lento y muy irregular.
Arqueología experimental o experimentación en arqueología
Authors: Ramos Sáinz María Luisa , Fuentes Luis
Published: June 2023

La presentación de este tercer número del Boletín de Arqueología Experimental, parece confirmar el éxito de una idea nacida alrededor de un grupo de arqueólogos y sin embargo amigos, interesados en profundizar en el conocimiento del pasado a través de nuevas (al menos dentro de lo que conocíamos en nuestro ámbito hasta entonces) vías de trabajo e investigación del pasado. Con el tiempo algunos de los amigos que señalábamos el interés que una publicación de este tipo tendría dentro de nuestro campo hemos emprendido caminos divergentes aunque de alguna manera relacionados. Pero en todos nosotros existía y confío siga así, algo que no sé si fruto de la juventud o del desconsuelo por lo conocido, nos impulsaba a buscar alternativas desde un serio compromiso metodológico, reconozco que a veces carente de suficiente cimentación teórica, algo que podríamos definir como "juvenil espíritu científico". Y recuerdo todo esto porque últimamente hemos tenido oportunidad de asistir a distintos acontecimientos bien en forma de reuniones o de experiencias experimentales que creo que han servido para retomar el debate sobre el carácter experimental de la arqueología.
Proyecto de Arqueología experimental. Construcción e incendio de una tumba monumental neolítica a partir de los datos obtenidos en la excavación de La Peña de La Abuela
Authors: Rojo Guerra Manuel A.
Published: June 2023

Una de las actividades realizadas durante la campaña de excavaciones llevada a cabo el presente año dentro del Proyecto de Actuación Integral en el Valle de Ambrona ha sido la reconstrucción y el incendio de una tumba monumental neolítica.Este proyecto de Arqueología Experimental ha sido concebido como un instrumento más al servicio de la investigación. En efecto, en el año 1998 concluimos la excavación de la tumba de La Peña de La Abuela, una tumba monumental profundamente modificada y alterada por la acción del fuego. Los datos obtenidos han sido publicados recientemente (Rojo y Kunst, 1999 a y b), por lo que nos remitimos a estos trabajos para cualquier precisión sobre la tumba, ofreciendo, a continuación, un breve resumen de los aspectos estructurales que nos animaron a investigar experimentalmente sobre la construcción original.
Un modelo de experimentación en el curtido de pieles (o cómo morirse de frío en el estadio isotópico 5)
Authors: Pineda Cabello Luisa , Salvador Rodríguez Almudena
Published: June 2023

Curtido de una piel de ciervo siguiendo el método primitivo de limpieza de la misma.
Performance of zinc borate-treated oriented structural straw board against mold fungi, decay fungi, and termites – A preliminary trial
Authors: Han Guangping , Cheng Wanli , Manning Mark , Eloy Pierre
Published: June 2023

The performance of zinc borate (ZB)-treated oriented structural straw board (OSSB) against mold fungi, decay fungi, and termites was examined in standard laboratory evaluations. OSSB was fabricated with split wheat straw strands and diphenylmethane diisocyante (pMDI) resin. The ZB was added during panel manufacture to achieve preservative levels (wt.%) of 1.0%, 1.5%, 2.0%, and 3.0%. It was observed that after a four-week exposure to mold fungi all samples had some mold coverage, but the coverage on the ZB-treated samples was significantly lighter compared to the untreated OSSB. Decay test showed that the weight losses of ZB-treated OSSB blocks at 1.0% and 1.5% levels were significantly reduced compared to the untreated OSSB and solid wood controls, indicating superior performance of ZB-treated OSSB against decay fungi. The termite mortality indicated that none of the termites were alive at the conclusion of the test for ZB-treated OSSB. The results from these specific laboratory studies demonstrated that ZB retentions of 1.5% and greater provide performance against decay fungi and termites for OSSB panels. In addition, untreated OSSB has high susceptibility to mold due to the chemical features of wheat straw and incomplete removal of kernels.
High-performance cellulose nanofibril composite films
Authors: Qing Yan , Sabo Ronald , Wu Yiqiang , Cai Zhiyong
Published: June 2023

Cellulose nanofibril/phenol formaldehyde (CNF/PF) composite films with high work of fracture were prepared by filtering a mixture of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) oxidized wood nanofibers and water-soluble phenol formaldehyde with resin contents ranging from 5 to 20 wt%, followed by hot pressing. The composites were characterized by tensile testing, dynamic mechanical analysis, scanning electron microscopy, atomic force microscopy, thermo-gravimetric analysis, and moisture/water absorption. Neat CNF films had tensile stress and Young’s modulus of 232 MPa and 4.79 GPa, respectively. PF resin was found to be well dispersed in the composites, although the resin increased the roughness of the film surfaces. Hygroscopic capacities of the composites were dramatically reduced, as compared to neat films, in both high humidity environments and when soaked in water. The composites exhibited slightly reduced tensile strength with modestly increased storage modulus compared to neat CNF films. Remarkably, the work of fracture ranged from 20 to 27 MJ/m3, making these films among the toughest reported for cellulose nanocomposites.
Gravitation, cosmology and dark matter
Authors: Valenzuela Mississippi
Published: June 2023

In this work, we present the fundamentals of the general theory of relativity, the standard cosmology and a description of current and interesting research topics about our current Universe, in addition the emergence of the dark matter problem has been raised, trying to outline possible dark matter candidates. This assumption seems realistic, however the analysis, from the point of view of standard cosmology, which is also studied in this work, turns out to be more complex than if dark matter were considered with a single species of elementary particle.
The languages of the national minorities of Transcarpathia in the Ukrainian media discourse during the war
Authors:   Uzhhorod National University, Sharkan Vasyl
Published: June 2023

The article analyzes the peculiarities of discussing the issue of languages of national mi­norities of Transcarpathia in Ukrainian online media between April 25, 2019 (after the Verkhovna Rada of Ukraine adopted the Law “On Ensuring the Functioning of Ukrai­nian as the State Language” in the second reading) and December 2022. It has been traced that in Ukraine, the level of interest in Hungarian, Romanian, Slovak, and Polish languages during this period (according to Google Trends) was heterogeneous and in­creased significantly after the outbreak of Russia’s full-scale war against Ukraine on February 24, 2022. Publications on the languages of national minorities in Transcarpathia mainly concern the Hungarian community (75 %), with only a tiny part covering the Romanian (3 %), Slovak and Roma (2 % each), and German (1 %). 17 % of publications cover the issues of several national communities simultaneously. “Karpatskyi Objektyv” and “Zakarpat- tya online” are the media that most often cover this issue. The analysis led to the con­clusion that before Russia’s full-scale attack on Ukraine, online media covered the pros­pects for the functioning of the Hungarian language in educational institutions in Transcarpathia most of all. However, after the beginning of Russia’s post-wide invasion, this issue was relegated to the background, and more attention was paid to the function­ing of the Russian language in Ukraine, the discussion of the law on national minorities, and the creation of new opportunities for learning Ukrainian, including for representa­tives of national minorities. Taking into account the observed content trends in media publications, it is suggested that the language issue has been a pretext for Hungary to obstruct Ukraine’s integration with NATO rather than a reason. Keywords: language of national minorities, Transcarpathia, media, Hungarian language, Ro­manian language, Slovak language, Ukrainian language.
Parent Preferences on Screening for Social Determinants of Health in Hospitalized Children
Authors: Gayle Tamara , Law Amy , Stokes Stacey , Page Alison , Neal Wayne , Bhansali Priti
Published: June 2023

BACKGROUND

Although there has been much research on screening families for social determinants of health (SDOH) at pediatric outpatient visits, there is little data on family preferences about SDOH screening during hospitalization. This is of critical importance because unmet SDOH, also known as social needs, are associated with poor health outcomes.

OBJECTIVE

Our objective was to assess caregiver preferences for social needs screening in the inpatient pediatric setting.

METHODS

We surveyed a sample of caregivers of admitted patients at our freestanding tertiary-care children’s hospital between March 2021 and January 2022. Caregivers were surveyed with respect to the importance of screening, their comfort with screening, and which domains were felt to be acceptable for screening.

RESULTS

We enrolled 160 caregivers. More than 60% of caregivers were comfortable being screened for each of the social needs listed. Between 40% and 50% found screening acceptable, even if resources were unavailable. Forty-five percent preferred to be screened in private, 9% preferred to be screened by a health care team member, and 37% were comfortable being screened either in private or with a health care team member. Electronic screening was the most preferred modality (44%), and if by a health care team member, social workers were preferred over others.

CONCLUSIONS

Many caregivers reported the acceptance of and comfort with social needs screening in the inpatient setting. Our findings may help inform future hospital-wide social needs screening efforts.
Perception and attitudes of local communities towards vertebrate fauna in the Andes of Colombia: Effects of gender and the urban/rural setting
Authors: Moreno-Rubiano Maria Camila , Moreno-Rubiano Juan Diego , Robledo-Buitrago Daniel , De Luque-Villa Miguel Antonio , Urbina-Cardona J. Nicolas , Granda-Rodriguez Hernan Dario
Published: June 2023

This study sought to evaluate the perception and attitudes of the inhabitants of an Andean region of Colombia towards 17 native terrestrial vertebrate species and their relationships with sociodemographic factors such as gender and locality (town or country). Data were collected through semi-structured surveys of 100 participants. Five variables measuring people's perceptions (level of liking, medicinal use, detrimental to daily activity, disease transmission, and folklore traditions) were statistically evaluated using a Likert scale ranging. To measure attitudes, respondents were asked whether they would agree that the government should protect or eradicate some of the species in the region. The respondents' level of liking and their folklore (legend and myth-type superstitions) only varied for the owl between town and country. Native rat, bat, and snake species had the highest frequency of negative perceptions among people that varied according to locality and gender, in contrast to birds such as the canary and hummingbird species where positive perceptions predominated. The species that presented the greatest diversity of folklore traditions were owl, snake, and the bat species, all mainly associated with death and bad luck. Most respondents considered conserving all species, with a preference for birds and some mammals and reptiles. However, they considered eliminating species such as native rat, snake, and bat species from the region. Wildlife conservation initiatives must understand people's perceptions for using charismatic species, while implementing awareness campaigns on the ecological importance of species that are less liked by local communities. We discussed local people's perceptions and medicinal uses of wildlife species.
Longitudinal associations between psychiatric comorbidity and the severity of gambling disorder: Results from a 36-month follow-up study of clients in Bavarian outpatient addiction care
Authors: Wullinger Pia M. , Bickl Andreas M. , Loy Johanna K. , Kraus Ludwig , Schwarzkopf Larissa
Published: June 2023

Background and aims

Individuals with gambling disorder (GD) often suffer from psychiatric comorbidities. Previous studies demonstrated greater severity of GD among gamblers with psychiatric comorbidities. However, evidence on the association between psychiatric comorbidity and course of GD severity during and after outpatient treatment is sparse. This study analyses data from a longitudinal one-armed cohort study on outpatient addiction care clients over three years.

Methods

We investigated the course of GD severity using data from 123 clients in 28 outpatient addiction care facilities in Bavaria using generalized estimation equations (GEE). We applied time* interaction analyses to examine different development profiles in participants with and without (1) affective disorders, or (2) anxiety disorders, and (3) to account for the co-occurrence of both.

Results

All participants benefitted from outpatient gambling treatment. Improvement in GD severity was poorer in participants with anxiety disorders compared to participants without anxiety disorders. The co-occurrence of affective and anxiety disorders was linked to a less favourable course of GD than the presence of affective disorders alone. However, the combined occurrence of both disorders was more favourable than the presence of anxiety disorders alone.

Discussion and conclusions

Our study suggests that clients with GD, with and without psychiatric comorbidities, benefit from outpatient gambling care. Psychiatric comorbidity, especially comorbid anxiety disorders, seems to be negatively associated with the course of GD within outpatient gambling care. Addressing psychiatric comorbidity within the treatment of GD and offering individualised help are required to meet the needs of this clientele.
Molecular Assessment of Kappaphycus alvarezii Cultivated in Tarakan based on cox2-3 Spacer
Authors: Soelistyowati Dinar Tri
Published: June 2023

The seaweed Kappaphycus alvarezii is a leading aquaculture commodity possessing high economic value that has been used as a raw material for various natural products, food, and pharmaceutical industries. The main challenge regarding its production, escpecially in Tarakan is the supply of superior seeds. Therefore, this study aims to obtain phylogenetic information and the cultivation performance of the selected seeds by identifying genetic sources based on molecular markers. DNA sequencing analysis was carried out using the molecular marker cox2-3 spacer on a collection comprising 16 cultivars from all over the country (Indonesia). The four haplotypes representing K. alvarezii to be cultivated in the city were produced by phylogenetic clustering and further molecular analysis using cox2-3 intergenic spacer mitochondrial DNA marker. These include the Kupang varieties and Natuna, also referred to as Lampung seedlings, which is a tissue culture plantlet used for development at SEAMEO-BIOTROP Bogor and propagated by the Lampung Marine Aquaculture Center (BBPBL), Tarakan. These varieties were genetically distances (pairwise comparisons based on mean Kimura 2-parameter model) ranging from 0.00-0.23 unit. The cultivation was carried out for 30 days in the waters of Tanjung Batu (Tj. Batu) Mamburungan, Tarakan, North Kalimantan, for 30 days. The result showed that the Natuna* as Lampung cultivar has superior performance compared to local cultivars (Takalar as Mamburungan Tanjung Batu, Tarakan, and Kupang). Furthermore, the genetic analysis with cox2-3 spacer markers had the potential as an effective seed selection tool for tracing genetic information in the development of superior seedlings in aquaculture activities.
Metabolites Alteration and Antioxidant Activity of Gracilaria verrucosa After Fermentation Using Aureobasidium melanogenum MTGK.31
Authors: Sibero Mada Triandala , Savitri Adella Maulina , Frederick Evan Hansel , Sedjati Sri
Published: June 2023

Gracilaria verrucosa is a red seaweed that has been widely utilized in the food and pharmaceutical industries due to its biological properties. The utilization of biological agents in obtaining certain bioactive compounds would confront unavoidable issues, particularly its bioactive sustainability. Hence, microbial fermentation has been reported as a practical approach to maintaining bioactive production and boosting its properties. Our study aimed to evaluate the potential of marine yeast Aureobasidium melanogenum MTGK.31 as a fermenting agent for G. verrucosa and characterize the seaweed metabolite profile and antioxidant activity after fermentation. The seaweed was fermented using A. melanogenum MTGK.31 in a medium consisting of yeast extract, peptone, and glucose. The fermentation was done for 24, 48, and 72 hours. Total plate count and pH were measured after each fermentation period. The primary and secondary metabolites of G. verrucosa in each fermentation were observed. Antioxidant assay using the 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) method was conducted, followed by total phenolic content using the Folin-Ciocalteu method. It was highlighted that yeast colony increased during the fermentation, while the pH level was decreasing. We found that the fermentation not only boosted some elements in primary metabolites, but also increased G. verrucosa bioactive groups. After 72 hours of fermentation, the G. verrucosa percent radical scavenging activity (%RSA) increased more than two times compared to the fresh G. verrucosa with a %RSA value of 16.09±6.57. Nevertheless, the highest total phenolic content of 5.62±0.00028 mg GAE/g extract was shown by G. verrucosa after 48 hours of fermentation.
Study of Actinotrichia fragilis Indonesian Red Seaweed as Raw Material for Healthy Salt
Authors: Nurjanah Nurjanah , Jacoeb Agoes Mardiono , Abdullah Asadatun , Priyanto Joko Ahadi , Nurdin Naufal Muharam , Seulalae Anggrei Viona
Published: June 2023

Healthy seaweed salt is low sodium salt from seaweed that offers health benefits for hypertension patients. Indonesian seaweed has the potential to produce healthy seaweed salt. Research to date still focuses on green and brown seaweed but there is still no report for red seaweed. Actinotrichia fragilis is one of red seaweed species that has been discovered in Indonesia’s seawater and has not yet been utilized. Thus, this study aimed to determine the chemical composition and antioxidant activity of A. fragilis flour and the optimum ratio for producing seaweed salt with a high yield, optimum %NaCl, Na/K ratio, and antioxidant activity. Seaweed salt production treatment was the ratio of seaweed flour and distilled water 1:3, 1:5, and 1:10 (w/v), extracted at 40°C for 10 minutes. The mixture was filtered, then dried at 60°C for 30 hours. Data analysis was performed by analysis of variance. The raw material for dried A. fragilis seaweed has a high ash and low-lipid content. Then the ethanol extract had a total phenolic content value of 84.34 mg GAE/g and an antioxidant activity value of 98.22 mg/L. Furthermore, the antioxidant capacity of the ethanol extract was 60.15 mmol ascorbic acid/g and 552.21 mmol Fe2+/g. The best treatment for producing A. fragilis salt is 1:10 with yield of 12.76±0.13%, %NaCl 47.22±1.38%, Na/K ratio 3.32±0.18, IC50 with DPPH and ABTS method 113 mg/L and 87.27 mg/L, total antioxidant capacity 38.21 mg/mL ascorbic acid/g, and 304.32 mmol Fe2+/g. Furthermore, A. fragilis can be used for the production of  healthy seaweed salt.
As Startups no Contexto da Organização Capitalista Financeira e as Subjetividades Empreendedoras
Authors: Barbosa Milena de Lima , Mansano Sonia Regina Vargas
Published: June 2023

Resumo As startups são empresas que apresentam modelos de negócios marcados pela inovação, rapidez, flexibilidade e alta capacidade de adaptação aos mercados. Atuando em diferentes setores socioeconômicos, elas prometem criar e transformar produtos e serviços. A emergência e disseminação dessas empresas ocorrem em um momento histórico de mudanças iniciadas a partir de 1970 e marcadas pelas crises geradas com o esgotamento do paradigma da sociedade urbano industrial. No Brasil, o número desse modelo de negócio apresentou uma expansão expressiva, alcançando a marca de 13.374 nos últimos cinco anos. Atento a esse cenário, o objetivo desta pesquisa consistiu em compreender como sujeitos, grupos e instituições atribuem sentidos à experiência de trabalho nas chamadas startups. Na parte teórica, as condições sociais e econômicas que possibilitaram a emergência e disseminação das startups são analisadas em uma perspectiva crítica. A parte empírica, por sua vez, apresenta depoimentos de empreendedores relatando o contexto geral de atuação nas startups. Ao final deste artigo, conclui-se que há uma instrumentalização capitalística de componentes subjetivos específicos selecionados e colocados em circulação para fortalecer o modo de produção capitalista financeirizado.
A Disciplina Psicologia do Esporte nos Cursos de Psicologia e Educação Física
Authors: Raupp Fabricio Antonio , Teixeira Karen Cristine , Nunes Cyntia , Gotardo dos Santos Maryon , Pesca Andréa Duarte , Nunes Carlos Henrique Sancineto da Silva , Moraes Cruz Roberto
Published: June 2023

Resumo Este discute a representatividade da disciplina Psicologia do Esporte nos cursos de Psicologia e Educação Física em instituições de ensino superior reconhecidas pelo MEC e situadas na região Sul do país. Foi realizado um estudo documental, com base nos currículos das Instituições. Os resultados revelaram que no Sul do Brasil 21,02% dos cursos de Psicologia, 41,96% dos cursos de bacharelado em Educação Física e apenas 14,83% dos cursos de licenciatura em Educação Física apresentam a disciplina Psicologia do Esporte em sua grade curricular. Observou-se que a disciplina é ofertada mais frequentemente em regime obrigatório nos cursos de bacharelado em Educação Física. Nos cursos de Psicologia, quando ofertada, costuma ser optativa. Os resultados evidenciam uma maior oferta da disciplina para os estudantes de Educação Física, em relação aos de Psicologia, o que pode estar relacionado ao próprio contexto de surgimento da disciplina e sua popularização no meio acadêmico. Para que esse panorama possa mudar e se possa oferecer uma formação adequada no curso de Psicologia para fomentar essa opção de carreira, há necessidade de se repensar o currículo e o próprio perfil do egresso, de forma a dar mais oportunidade aos estudantes para que conheçam as bases teóricas e os campos de aplicação da Psicologia do Esporte. Tal lacuna pode acarretar a fragilização da disseminação desse conhecimento aos estudantes de graduação e a consequente ocupação do mercado de trabalho.
Influência da compatibilidade entre argamassas e blocos de concreto no comportamento de prismas de alvenaria
Authors: Paulino Rafaella Salvador , Toralles Berenice Martins
Published: June 2023

Resumo O uso de alvenaria de blocos de concreto para a construção de edifícios é recorrente em função da economia e racionalização que proporciona aos empreendimentos. No entanto, o bom desempenho da alvenaria depende não somente da qualidade dos materiais empregados, mas também das interações que se processam entre a unidade e a argamassa. Nesta pesquisa, procurou-se analisar as características de resistência à compressão e modo de ruptura de prismas de bloco de concreto. Foram utilizados blocos de concreto de resistências nominais de 8,0 MPa e 10,0 MPa, combinados com seis tipos de argamassas (mistas e industrializadas), de diferentes resistências. No total, 36 prismas foram construídos e ensaiados. Os resultados experimentais indicam que os prismas de argamassa de menor resistência romperam de forma dúctil, por esmagamento da argamassa; prismas de argamassa intermediária conferiram ruptura do conjunto; enquanto os prismas de argamassa mais rígida que o bloco, romperam de forma frágil, principalmente pela tração nos blocos. Conclui-se que a especificação das argamassas utilizadas na execução da alvenaria deve ser feita não somente em função da sua resistência, mas também de acordo com o do tipo de bloco empregado, visto que a compatibilidade entre esses elementos tem papel significativo no desempenho do conjunto.
Comportamento no estado fresco e no estado endurecido de pastas de cimentos álcali-ativados de cinza volante e de cinza pesada e suas características microestruturais
Authors: Costa Heloina Nogueira , Argonz Raquel , Cabaral Antônio Eduardo Bezerra , Nogueira Ricardo Emílio Ferreira Quevedo
Published: June 2023

Resumo A cinza volante é um dos principais precursores para cimentos álcali-ativados. Contudo, o uso combinado de cinza volante e cinza pesada não é comum e são poucas as informações disponíveis. Portanto, o foco deste artigo é investigar as propriedades no estado fresco e no estado endurecido de pastas álcali-ativadas com adição de cinza volante e cinza pesada. No estado fresco foram avaliados o tempo de pega, a fluidez e a plasticidade. No estado endurecido foram avaliadas propriedades mecânicas, químicas e microestruturais. Os resultados indicam que a incorporação de cinza pesada em até 50% melhora a trabalhabilidade das pastas, além de atuar como retardador de pega. A resistência mecânica tende a diminuir com o aumento do teor de cinza pesada. Contudo, a pasta contendo 100% de cinza pesada alcançou 14,4 MPa, indicando potencial de aplicação. O gel N-A-S-H foi identificado nas análises químicas e microestruturais como principal produto de reação. De modo geral, a mistura à base de cinza pesada e cinza volante tem potencial para a álcali-ativação, portanto, pode-se obter uma maior valorização desses subprodutos, principalmente da cinza pesada.
Caracterização de pastas de cimento Portland com adição de sílica visando a imobilização de Cr(VI)
Authors: Moura Cristopher Antonio Martins de , Resende Jackson Antônio Lamounier Camargos , Souza Karynne Cristina de
Published: June 2023

Resumo No âmbito da sustentabilidade, a geração de diferentes resíduos através das atividades humanas demanda a exploração de técnicas para disposição final. Dentre esses resíduos, estão os agrícolas e os metais pesados, ambos potencialmente poluidores. Este trabalho relata a análise da imobilização de cromo (VI) em pastas de cimento Portland (CP) com adição de sílica (SiO2) obtida de cinzas de casca de arroz (CCA). As pastas de CP foram avaliadas sob a perspectiva das propriedades mecânicas por ensaio de compressão. Relativo ao desenvolvimento da hidratação, as pastas foram avaliadas por MEV, DRX e FTIR. Visando o estudo da imobilização do Cr(VI), obteve-se extratos solubilizados para análise por espectrofotometria UV-VIS. Os resultados sugerem que a SiO2 de CCA apresentou-sepredominantemente amorfa. Com relação às pastas, a comparação da resistência dos diferentes traços nas mesmas idades revelou que não são significativamente diferentes. Acerca da DRX, os resultados sugerem que nos traços com K2Cr2O7 existem alterações no processo de hidratação. A eficiência de imobilização resultou maior que 99%, mas não se constatou efeito favorável da adição de sílica ao CP na imobilização do cromo (VI).
POVOS INDÍGENAS NA FORMAÇÃO DE EDUCADORES DO CAMPO NO CONTEXTO BRASILEIRO: PRESENÇAS E AUSÊNCIAS NOS PROJETOS PEDAGÓGICOS
Authors: Andrade Francisca Marli Rodrigues de , Nogueira Letícia Pereira Mendes
Published: June 2023

As licenciaturas em Educação do Campo são pautadas no princípio do respeito às diversidades e pluralidades dos povos do campo, entre eles, os indígenas. No processo formativo de educadores do campo, busca-se contemplar as reivindicações históricas dos povos indígenas, principalmente a demanda pelo direito à educação escolar e universitária. A partir desse contexto, essa pesquisa teve por objetivo conhecer o processo de inclusão dos saberes, das histórias e das culturas dos povos indígenas nos cursos de Educação do Campo, estruturados pelas Instituições Federais de Ensino Superior (IFES) brasileiras. A pesquisa, de abordagem qualitativa e de caráter exploratório descritivo, adotou a análise documental dos projetos pedagógicos de sete cursos de Educação do Campo com habilitação em Ciências Humanas e Sociais, ofertados por cinco universidades e dois institutos federais: UFPA, UFCG, UFMS, UFF, UFFS, IFPA e IFRN. Os principais resultados indicam que os cursos buscam formar educadores que atendam demandas dos povos indígenas em suas especificidades; além de promover algumas ações voltadas à valorização das histórias e das culturas indígenas.
Finding Qs: Profiling QAnon Supporters on Parler
Authors: Bär Dominik , Pröllochs Nicolas , Feuerriegel Stefan
Published: June 2023

The social media platform "Parler'' has emerged into a prominent fringe community where a significant part of the user base are self-reported supporters of QAnon, a far-right conspiracy theory alleging that a cabal of elites controls global politics. QAnon is considered to have had an influential role in the public discourse during the 2020 U.S. presidential election. However, little is known about QAnon supporters on Parler and what sets them aside from other users. Building up on social identity theory, we aim to profile the characteristics of QAnon supporters on Parler. We analyze a large-scale dataset with more than 600,000 profiles of English-speaking users on Parler. Based on users' profiles, posts, and comments, we then extract a comprehensive set of user features, linguistic features, network features, and content features. This allows us to perform user profiling and understand to what extent these features discriminate between QAnon and non-QAnon supporters on Parler. Our analysis is three-fold: (1) We quantify the number of QAnon supporters on Parler, finding that 34,913 users (5.5% of all users) openly report supporting the conspiracy. (2) We examine differences between QAnon vs. non-QAnon supporters. We find that QAnon supporters differ statistically significantly from non-QAnon supporters across multiple dimensions. For example, they have, on average, a larger number of followers, followees, and posts, and thus have a large impact on the Parler network. (3) We use machine learning to identify which user characteristics discriminate QAnon from non-QAnon supporters. We find that user features, linguistic features, network features, and content features, can - to a large extent - discriminate QAnon vs. non-QAnon supporters on Parler. In particular, we find that user features are highly discriminatory, followed by content features and linguistic features.
Measuring the Ideology of Audiences for Web Links and Domains Using Differentially Private Engagement Data
Authors: Buntain Cody , Bonneau Richard , Nagler Jonathan , Tucker Joshua A.
Published: June 2023

This paper demonstrates the use of differentially private hyperlink-level engagement data for measuring ideologies of audiences for web domains, individual links, or aggregations thereof.
We examine a simple metric for measuring this ideological position and assess the conditions under which the metric is robust to injected, privacy-preserving noise.
This assessment provides insights into and constraints on the level of activity one should observe when applying this metric to privacy-protected data.
Grounding this work is a massive dataset of social media engagement activity where privacy-preserving noise has been injected into the activity data, provided by Facebook and the Social Science One (SS1) consortium.
Using this dataset, we validate our ideology measures by comparing to similar, published work on sharing-based, homophily- and content-oriented measures, where we show consistently high correlation (>0.87).
We then apply this metric to individual links from several popular news domains and demonstrate how one can assess link-level distributions of ideological audiences.
We further show this estimator is robust to selection of engagement types besides sharing, where domain-level audience-ideology assessments based on views and likes show no significant difference compared to sharing-based estimates.
Estimates of partisanship, however, suggest the viewing audience is more moderate than the audiences who share and like these domains.
Beyond providing thresholds on sufficient activity for measuring audience ideology and comparing three types of engagement, this analysis provides a blueprint for ensuring robustness of future work to differential privacy protections.
Representing and Determining Argumentative Relevance in Online Discussions: A General Approach
Authors: Guo Zhen , Singh Munindar P.
Published: June 2023

Understanding an online argumentative discussion is essential for understanding users' opinions on a topic and their underlying reasoning. A key challenge in determining completeness and persuasiveness of argumentative discussions is to assess how arguments under a topic are connected in a logical and coherent manner. Online argumentative discussions, in contrast to essays or face-to-face communication, challenge techniques for judging argument relevance because online discussions involve multiple participants and often exhibit incoherence in reasoning and inconsistencies in writing style.

We define relevance as the logical and topical connections between small texts representing argument fragments in online discussions. We provide a corpus comprising pairs of sentences, labeled with argumentative relevance between the sentences in each pair. We propose a computational approach relying on content reduction and a Siamese neural network architecture for modeling argumentative connections and determining argumentative relevance between texts.

Experimental results indicate that our approach is effective in measuring relevance between arguments, and outperforms strong and well-adopted baselines.
Further analysis demonstrates the benefit of using our argumentative relevance encoding on a downstream task, predicting how impactful an online comment is to certain topic, comparing to encoding that does not consider logical connection.
Improving Mental Health Classifier Generalization with Pre-diagnosis Data
Authors: Liu Yujian , Biester Laura , Mihalcea Rada
Published: June 2023

Recent work has shown that classifiers for depression detection often fail to generalize to new datasets. Most NLP models for this task are built on datasets that use textual reports of a depression diagnosis (e.g., statements on social media) to identify diagnosed users; this approach allows for collection of large-scale datasets, but leads to poor generalization to out-of-domain data. Notably, models tend to capture features that typify direct discussion of mental health rather than more subtle indications of depression symptoms. In this paper, we explore the hypothesis that building classifiers using exclusively social media posts from before a user's diagnosis will lead to less reliance on shortcuts and better generalization. We test our classifiers on a dataset that is based on an external survey rather than textual self-reports, and find that using pre-diagnosis data for training yields improved performance with many types of classifiers.
Information Operations in Turkey: Manufacturing Resilience with Free Twitter Accounts
Authors: Merhi Maya , Rajtmajer Sarah , Lee Dongwon
Published: June 2023

Following the 2016 US elections Twitter launched their Information Operations (IO) hub where they archive account activity connected to state linked information operations. In June 2020, Twitter took down and released a set of accounts linked to Turkey's ruling political party (AKP). We investigate these accounts in the aftermath of the takedown to explore whether AKP-linked operations are ongoing and to understand the strategies they use to remain resilient to disruption. We collect live accounts that appear to be part of the same network, ~30% of which have been suspended by Twitter since our collection. We create a BERT-based classifier that shows similarity between these two networks, develop a taxonomy to categorize these accounts, find direct sequel accounts between the Turkish takedown and the live accounts, and find evidence that Turkish IO actors deliberately construct their network to withstand large-scale shutdown by utilizing explicit and implicit signals of coordination. We compare our findings from the Turkish operation to Russian and Chinese IO on Twitter and find that Turkey's IO utilizes a unique group structure to remain resilient. Our work highlights the fundamental imbalance between IO actors quickly and easily creating free accounts and the social media platforms spending significant resources on detection and removal, and contributes novel findings about Turkish IO on Twitter.
BotBuster: Multi-Platform Bot Detection Using a Mixture of Experts
Authors: Ng Lynnette Hui Xian , Carley Kathleen M.
Published: June 2023

Despite rapid development, current bot detection models still face challenges in dealing with incomplete data and cross-platform applications.
In this paper, we propose BotBuster, a social bot detector built with the concept of a mixture of experts approach. Each expert is trained to analyze a portion of account information, e.g. username, and are combined to estimate the probability that the account is a bot.
Experiments on 10 Twitter datasets show that BotBuster outperforms popular bot-detection baselines (avg F1=73.54 vs avg F1=45.12).
This is accompanied with F1=60.04 on a Reddit dataset and F1=60.92 on an external evaluation set.
Further analysis shows that only 36 posts is required for a stable bot classification. Investigation shows that bot post features have changed across the years and can be difficult to differentiate from human features, making bot detection a difficult and ongoing problem.
Characterizing and Identifying Socially Shared Self-Descriptions in Product Reviews
Authors: Sun Lu , Harper F. Maxwell , Lee Chia-Jung , Murdock Vanessa , Poblete Barbara
Published: June 2023

Online e-commerce product reviews can be highly influential in a customer's decision-making processes.
Reviews often describe personal experiences with a product and provide candid opinions about a product's pros and cons.
In some cases, reviewers choose to share information about themselves, just as they might do in social platforms.
These descriptions are a valuable source of information about who finds a product most helpful.
Customers benefit from key insights about a product from people with their same interests and sellers might use the information to better serve their customers needs.
In this work, we present a comprehensive look into voluntary self-descriptive information found in public customer reviews.
We analyzed what people share about themselves and how this contributes to their product opinions.
We developed a taxonomy of types of self-descriptions, and a machine-learned classification model of reviews according to this taxonomy. We present new quantitative findings, and a thematic study of the perceived purpose descriptions in reviews.
Identifying and Characterizing Behavioral Classes of Radicalization within the QAnon Conspiracy on Twitter
Authors: Wang Emily L. , Luceri Luca , Pierri Francesco , Ferrara Emilio
Published: June 2023

Social media provide a fertile ground where conspiracy theories and radical ideas can flourish, reach broad audiences, and sometimes lead to hate or violence beyond the online world itself.
QAnon represents a notable example of a political conspiracy that started out on social media but turned mainstream, in part due to public endorsement by influential political figures. Nowadays, QAnon conspiracies often appear in the news, are part of political rhetoric, and are espoused by significant swaths of people in the United States. It is therefore crucial to understand how such a conspiracy took root online, and what led so many social media users to adopt its ideas. In this work, we propose a framework that exploits both social interaction and content signals to uncover evidence of user radicalization or support for QAnon. Leveraging a large dataset of 240M tweets collected in the run-up to the 2020 US Presidential election, we define and validate a multivariate metric of radicalization. We use that to separate users in distinct, naturally-emerging, classes of behaviors associated with radicalization processes, from self-declared QAnon supporters to hyper-active conspiracy promoters. We also analyze the impact of Twitter's moderation policies on the interactions among different classes: we discover aspects of moderation that succeed, yielding a substantial reduction in the endorsement received by hyperactive QAnon accounts. But we also uncover where moderation fails, showing how QAnon content amplifiers are not deterred or affected by the Twitter intervention. Our findings refine our understanding of online radicalization processes, reveal effective and ineffective aspects of moderation, and call for the need to further investigate the role social media play in the spread of conspiracies.