bluuebunny/crossref_metadata_2025 huggingface dataset:
Aps en ICAI: Educación STEM
Authors: González Arechavala Yolanda , Puente Águeda Cristina , Vinuales Ramiro
Published: March 2024

Educación STEM es una de las opciones que los estudiantes de ICAI pueden elegir para realizar su experiencia en APS. Esta actividad se viene realizando desde el curso 16- 17, aunque ha sido desde el curso 18-19 cuando se ha considerado como una parte del Diploma de Habilidades Personales, Comunicativas y Profesionales. Dentro de esta experiencia se engloban distintas actividades: (a) Talleres de Robótica en Colegio San Alfonso de Lavapiés a los estudiantes de 6º de primaria; (b) Talleres de Diseño de videojuegos, Robótica y Energías Renovables para estudiantes de 1º y 2º del Programa TecnoDemos de Comillas para personas con discapacidad intelectual; (c) Clases de apoyo a estudiantes de Bachillerato en Física y Química y Matemáticas para jóvenes sin recursos del Centro La Inmaculada Marillac y Ayuda para hacer los deberes y (d) Talleres de Robótica para niños y jóvenes de 6 a 16 años de la Asociación Línea 10 en Usera. La mayor parte de las actividades implican 8 o 9 sesiones semanales de 2 horas durante un semestre (más las preparaciones previas). En estos cinco cursos académicos, 169 estudiantes de ICAI han realizado su actividad de APS en Educación STEM, con una valoración de la experiencia de 4 a 5 (sobre 5) en un 80% de los estudiantes que contestaron a la encuesta anónima y un 94% considera que ha merecido la pena (aunque antes de comenzar la experiencia, su valoración fue entre 1 y 3 en un 55% de las respuestas). Para los más de 770 niños, niñas y jóvenes que han recibido el apoyo de nuestros alumnos, ha sido una experiencia excelente.
Technovation Girls
Authors: Viñuales Ferreiro Ramiro
Published: March 2024

Es un programa internacional promocionado por la fundación Technovation. La finalidad es que las chicas se acerquen con naturalidad y sin reparo a la tecnología. Con el apoyo y acompañamiento de mentores, desarrollan una aplicación móvil para aportar soluciones a un problema social elegido por ellas.
Enfoque y herramientas para el aprendizaje en proyectos de organización de eventos
Authors: Saldaña Larrondo Dulce Eloísa , Pérez Sánchez María del Carmen , Morales Pérez Macarena
Published: March 2024

Buenas prácticas sobre enfoque, guía y facilitación de herramientas por parte del docente para que, a través de la organización de un evento, los estudiantes adquieran conocimientos y habilidades fundamentales para la gestión de proyectos. Especialmente que (a) entiendan la importancia de desarrollar una detallada planificación, análisis, gestión de riesgos y evaluación; (b) aprendan el uso de las herramientas necesarias para ello; (c) desarrollen las habilidades personales que permiten la correcta gestión y motivación de las personas implicadas, con distintos perfiles y distintos intereses y (d) descubran como sus conocimientos del ámbito empresarial pueden aplicarse en la resolución de problemas con impacto social.
Colaboracion con entidades
Authors: Pérez Sánchez María del Carmen , Morales Pérez Macarena , Saldaña Larrondo Dulce Eloísa
Published: March 2024

Buenas prácticas sobre la necesaria e imprescindible colaboración entre las entidades y las empresas sociales con la universidad: alumnado Comillas y docentes ApS. Para que la metodología ApS funcione es necesario construir buenas y fructíferas relaciones con las entidades del tercer sector y las empresas sociales. Este es el caso que se describe basado en nuestra experiencia como docentes de ApS y también trabajadoras de entidades sociales.
Metodología docente innovadora: aprendizaje a través de un reto trasversal a dos asignaturas
Authors: Ferruz González Sonia Aránzazu , Gil Pérez Javier
Published: March 2024

Se presenta una actividad de Aprendizaje Basado en Retos (ABR) realizada en el aula con alumnos de 4º curso del Doble Grado en Relaciones Internacionales y Comunicación Global y creada en colaboración entre docentes de distintas asignaturas del Grado, una vinculada a Relaciones Internacionales y otra a Comunicación. La actividad se realizó con el objetivo de conectar los conceptos teóricos de las asignaturas con la práctica profesional en el ámbito de la comunicación internacional. El reto se centró en la simulación de una situación profesional, y se desarrolló en grupos dentro del aula durante 2 sesiones. El punto de partida y la dinámica del reto se crearon específicamente para la actividad, teniendo en cuenta las competencias a adquirir conectadas con el desempeño profesional. Para evaluar la eficacia de la actividad, se pasó un cuestionario a los alumnos para que valorasen el ABR como metodología de interés para ellos y si se sentían preparados para afrontar una situación similar en el ámbito profesional. El 88% manifestó que la simulación le había facilitado el aprendizaje de los contenidos de la asignatura y el entrenamiento de competencias profesionales, y el 73% afirmó que se sentían preparados para enfrentarse a ello en el ámbito profesional.
P&g challenges: aprendizaje basado en proyectos green but failed
Authors: Valor Carmen , Garcillán López-Rúa Mencía de , Martín García David F.
Published: March 2024

Se presenta un modelo de trabajo basado en proyectos realizado en colaboración con la empresa Procter & Gamble. Los alumnos trabajaban sobre productos verdes que han fracasado en el mercado. Deben averiguar por qué ha ocurrido y qué se puede hacer. Se discuten las ventajas y desventajas de esta práctica y se proponen aplicaciones de este método de trabajo.
Huir de lo convencional: uso creativo de genial.ly para llamar la atención del estudiantado
Authors: Costa Gálvez Lola
Published: March 2024

La utilización de Genial.ly para el diseño de materiales didácticos permite la presentación de los contenidos de una manera visualmente atractiva e interactiva escapando de la mera presentación de la información y potenciando la competencia digital en el marco DigCompEdu. Precisamente esta característica es lo que facilita el despertar del interés y la curiosidad del estudiantado para involucrarles en la acción docente. Si además le añadimos un uso creativo del recurso tenemos como resultado unos materiales didácticos que contribuyen a la construcción de conocimiento en el alumnado. Concretamente sirven para aumentar el interés por la asignatura, servir de hilo conductor, motivar a través de actividades alternativas, recordar puntos clave, fijar conceptos complejos y adquirir nuevos conocimientos, así como cuestiones fuera del temario como el aumento de la participación, la metacognición (sentir que aprendo más y mejor), el “empoderamiento” (sentirme con presencia dentro del aula) y el modelado del estudiante. A partir de esta premisa se presentan una serie de materiales didácticos generados mediante el uso creativo de las plantillas de Genial.ly que responden a un mismo patrón: llamar la atención del estudiantado para huir de lo convencional. Finalmente, se mostrarán evidencias sobre su utilidad para el objetivo último de la docencia: la creación de una experiencia de aprendizaje significativa y memorable en nuestro alumnado.
Effect of Stress on the Expression of Galanin Receptors in Rat Heart
Authors: Šípková J. , Šída P. , Kaspříková N. , Kramáriková I. , Hynie S. , Klenerová Věra
Published: March 2024

Neuropeptide galanin, galanin-like peptide and galanin receptors 1, 2 and 3 are a crucial part of the so-called galaninergic system. Our previous studies have shown the possible role of this system in mood modulation, especially regarding stress. So far, the galanin receptors have been found in different tissues including brain and heart. Our study deals with changes in expression of galanin receptor subtypes in the heart of Wistar rats exposed to three different types of stress. Galanin receptor subtypes were determined in fluorescently labelled samples using specific primary antibodies, and all sections were analysed in an immunofluorescent microscope and microphotographs. Image analyses were subsequently performed by software ImageJ, using the threshold method with calculation of the DAPI/galanin receptor signal ratio. We found all three types of receptors in the right and left atria and left and right ventricles. Changes in the density of galanin receptors after application of the stressor depended on the observed heart compartment. We found a significant decrease of galanin receptor 1 in all compartments after all types of stress. For GalR2 and GalR3, the increase/decrease of density was dependent on the tested compartment. These results show that galanin receptors could be involved in the function of heart during the cardiac cycle.
Millets based alternative sustainable cost-effective culture media for microbial growth
Authors: Monis Jasmitha , Panuganti Rashmi , Chitnis Kanchan
Published: March 2024

Millets are a rich source of starch, proteins, lipids, and other nutrients. This study aimed to assess whether millets can be used to formulate sustainable and economically viable culture media, thus potentially replacing the expensive traditional media used for growing microorganisms. Millet samples from Maharashtra, Rajasthan, and Tamil Nadu were assayed for their protein and lipid content. Sorghum vulgare (Jowar), Pennisetum glaucum (Bajra), and Eleusine coracana (Ragi) demonstrated high protein content ranging from 0.63–0.78 mg/ml. Using Thin Layer Chromatography, lipids extracted with hexane were fractionated into several bands and compared against standard fatty acids and cholesterol. Panicum miliaceum (Proso) and Setaria italica (Kang) showed the maximum levels of free fatty acids and cholesterol. Based on the protein, lipid, and nutrient content, millets were used in different compositions to formulate media for growing bacteria and fungi. A mixture of Ragi and Bajra, which serves as calcium and phosphate sources respectively, exhibited zones of phosphate solubilization, thus confirming its potential as an alternative to Pikovskaya medium, which is used to cultivate phosphate- solubilizing bacteria. A mixture of Varai and Rajgira, which serves as carbohydrate and protein sources respectively, showed luxurious growth of fungi, thus confirming its potential as an alternative to Sabouraud’s Agar medium. Phosphate-solubilising bacteria are utilized in biofertilizer formation, thereby contributing to increased agricultural productivity. Besides proving a sustainable, environmentally friendly, and cost-effective alternative, the use of millets for media preparation can boost the agriculture sector and the economy of farmers as well.
Exploring the in vitro antimicrobial, antioxidant, and anticancer potentials of Spinifex littoreus Burm f. Merr. against human cervical cancer
Authors: Vedhamani J , Ajithkumar I Paul , Jemima E Angel
Published: March 2024

Spinifex littoreus Burm f. Merr. is considered as a pharmaceutically important coastal weed whereas, therapeutical applications of this plant are least studied. The current study aimed to identify the antibacterial, antioxidant, and anticancer properties in the chloroform extract of Spinifex littoreus. Six bacterial and 4 fungal human infections were tested for antibacterial activity in the chloroform extract of S. littoreus (SL-CH). The antioxidant ability of SL-CH was screened using the DPPH, ABTS, and H2O2 assays. MTT assay was used to investigate the anticancer activity of SL-CH and ROS, Annexin V, PI, and cell cycle analysis were used to determine its efficacy. The bacterial strain Propionibacterium acnes and the fungal strain Sporothrix schenckii were found to have the largest zones of clearance when the SL-CH extract was used at a concentration of 500 µg/ml. The antioxidant potentials of SL-CH extract showed the maximum radical scavenging activity against ABTS (83.98%), H2O2 (63.73%), and DPPH (52.02%) and their IC50 value was 31.74 ?g/ml, 53.93 ?g/ml, and 139.6 ?g/ml respectively. The IC50 concentration for the chloroform extract of Spinifex littoreus was determined to be 117.5 µg/ml and it showed concentration-dependent anticancer activity against HeLa cells. The ROS fluorescence staining result of SL-CH demonstrated the production of reactive oxygen species, which caused HeLa cells to undergo apoptosis. It was demonstrated by annexin V staining, PI staining technique, and cell cycle analysis that SL-CH extracts caused apoptosis in HeLa cells, preventing their growth. Taken together, these results showed that Spinifex littoreus chloroform extract is rich in antimicrobial, antioxidant, and anticancer potentials. Therefore, Spinifex littoreus extract can treat and prevent various ailments.
Polskie czasopisma humanistyczne i teologiczne w bazie Scopus: w kierunku umiędzynarodowienia
Authors: Drabek Aneta
Published: March 2024

Ukazanie się w 2019 roku Wykazu czasopism punktowanych wywołało w środowisku polskich humanistów sporo komentarzy wskazujących na niedocenienie wielu polskich czasopism naukowych. W Polsce wydaje się ponad 3,5 tys. czasopism naukowych, z czego tylko kilkaset zostało uwzględnionych w tym wykazie. Naukowcy wyrażali obawy co do możliwości poszerzenia listy i wskazywali, że międzynarodowe bazy danych Web of Science oraz Scopus nie będą zainteresowane polskimi czasopismami humanistycznymi publikującymi przede wszystkim w języku polskim. Pomimo kontrowersji wiele redakcji podjęło trud wprowadzenia czasopism do tych baz.Celem artykułu jest analiza polskich czasopism humanistycznych i teologicznych indeksowanych w bazie Scopus oraz sprawdzenie, jak obecnie – w 2023 roku – wygląda ich umiędzynarodowienie mierzone kryterium rejestracji w tej bazie. W latach 2017–2023 do bazy włączono 98 polskich czasopism humanistycznych i teologicznychNa podstawie danych z bazy Scopus oraz Arianta przygotowano wykaz 187 czasopism aktualnie rejestrowanych bazie Scopus, które przeanalizowano pod kątem dyscyplin, modelu publikacji oraz typu instytucji wydawcy. W drugiej części zbadane zostały artykuły opublikowane w tych czasopismach, przede wszystkim pod kątem języka publikacji, a także afiliacji (kraj i instytucja) autorów. Całość kończą rekomendacje dla redakcji czasopism.
Czy historycy śnią o cyfrowych rękopisach? Platforma Cyfrowa Biblioteki Kórnickiej w warsztacie badacza przeszłości
Authors: Biniaś-Szkopek Magdalena , Losik Aleksandra
Published: March 2024

PAN Biblioteka Kórnicka była jednym z inicjatorów powstania Wielkopolskiej Biblioteki Cyfrowej. Od roku 2019 udostępnia swoje zbiory na Platformie Cyfrowej Biblioteki Kórnickiej, platformie, która powstawała w ramach realizacji projektu „Cyfrowe udostępnianie zasobów Polskiej Akademii Nauk Biblioteki Kórnickiej”. Jest ona katalogiem OPAC umożliwiającym czytelnikom przeszukiwanie baz katalogowych, korzystanie z biblioteki cyfrowej, a także baz genealogicznych. Celem artykułu jest omówienie Platformy jako narzędzia pracy dla humanistów, a także wskazanie jego dróg rozwoju.
Konferencja Dyrektorów Bibliotek Akademickich Szkół Polskich. Historia powstania na podstawie analizy dostępnych dokumentów oraz najważniejsze fakty w 25-leciu działalności
Authors: Górski Marek
Published: March 2024

W artykule przedstawiono genezę, okoliczności i historię powstania Konferencji Dyrektorów Bibliotek Szkół Wyższych (przemianowanej na Konferencję Dyrektorów Bibliotek Akademickich Szkół Polskich – KDBASP). Analizie poddano archiwalne dokumenty, m.in. korespondencję między instytucjami oraz osobami mającymi wpływ na zainicjowanie idei utworzenia organizacji bibliotek akademickich, a przede wszystkim poufny raport IBD, relacjonujący realizację projektu TRAIL, w ramach którego powstała koncepcja powołania zrzeszenia. Zaprezentowano również najistotniejsze działania KDBASP w 25-leciu jego istnienia.
Bone metabolism in children with normal weight and overweight/obesity in a northeastern region of Spain
Authors: Cuenca Alcocel José , Villalba-Heredia Lorena , Martínez Redondo Inés , Berrozpe-Villabona Clara , Casajús José Antonio , Arbonés-Mainar José Miguel , Calmarza Pilar
Published: March 2024

Objectives

Bone mass progressively increases to peak during childhood and adolescence, which determines future bone health. Bone formation–resorption processes are assessed using bone markers. However, studies on the impact of obesity on bone turnover markers at this age are limited, and results are inconsistent. The objective of this study was to examine the potential impact of overweight/obesity on bone metabolism.

Methods

A study was performed to compare parameters of bone metabolism in 45 girls and boys with normal weight (controls) and in a group of 612 girls and boys with overweight/obesity (cases) from the Exergames study (University of Zaragoza). Ages ranged from 8 to 12 years.

Results

Higher values of phosphorus and IGFBP-3 were observed in children with overweight/obesity, as compared to children with normal weight, (p=0.042) and (p=0.042), respectively. BAP, osteocalcin, magnesium, vitamin D and IGF-I concentrations were lower in the group with overweight/obesity, whereas calcium concentrations were higher in this group, although differences were not statistically significant. A negative correlation was found (r=−0.193) (p=0.049) between BAP and BMI.

Conclusions

Although differences did not reach statistical significance, BAP and osteocalcin concentrations were lower in children with overweight/obesity. This added to the negative correlation found between BAP and MIC may demonstrate that overweight/obesity may negatively affect bone health already at a young age.
Keeping Mobile Firms at Home: The Role of Public Enterprise
Authors: Fjell Kenneth , Heywood John S. , Pal Debashis
Published: March 2024

We show that the presence of a public firm can deter private firms from relocating to foreign countries in response to high domestic taxation. We also examine partially privatized public firms showing that the higher the exogenous domestic profit tax, the larger the public ownership share needs to be to deter private firm mobility. We illustrate that deterring mobility increases domestic welfare.
Exploration of the thermal and mechanical characteristics of polymethyl methacrylate-based copolymers: implications for wind turbine blades applications
Authors: Xue Huimin , Li Chun , Sui Jiayang , Liu Lifei , Ma Xiaokun , Liang Chenhong , Zhao Weizhen
Published: March 2024

Wind turbine (WT) blade fabrication typically employs thermosetting resins, whose recycling challenges post-retirement have resulted in environmental pressures. Thus, there is an urgent need to develop a low-viscosity, high-performance, and recyclable material with excellent mechanical properties that is compatible with WT fabrication processes, serving as a viable alternative to traditional epoxy resins. Poly(methyl methacrylate) (PMMA) resin is considered a promising candidate for replacing epoxy resins. However, the mechanical properties of PMMA still require improvement. In this study, we investigated the effects of introducing copolymerized monomers on the comprehensive performance of PMMA resin without affecting its viscosity, examining the influence of these copolymerized monomers on the material’s thermal and mechanical properties. Meanwhile, the mechanical properties of the synthesized PMMA-based copolymers were compared with those of blade-specific epoxy resin (WD0135). The results revealed that compared to WD0135, the flexural strength and modulus of the prepared PMMA copolymers significantly increased to 96.6 and 3158.6 MPa, respectively, with a tensile strength reaching 74.2 MPa. Consequently, this series of PMMA-based resins demonstrates immense potential for large-scale material part fabrication via casting techniques.
Is there a role for routine intraoperative cholangiogram in diagnosing CBD stones in patients with normal liver function tests? A prospective study
Authors: Lim Yi Ping , Leow Voon Meng , Koong Jun Kit , Subramaniam Manisekar
Published: March 2024

Objectives

Cholecystectomy with or without intraoperative cholangiogram (IOC) is an accepted treatment for cholelithiasis. Up to 11.6 % of cholecystectomies have incidental common bile duct (CBD) stones on IOC and 25.3 % of undiagnosed CBD stones will develop life-threatening complications. These will require additional intervention after primary cholecystectomy, further straining the healthcare system. We seek to examine the role of IOC in patients with normal LFTs by evaluating its predictive values, intending to treat undiagnosed CBD stones and therefore ameliorate these issues.

Methods

All patients who underwent cholecystectomies with normal LFTs from October 2019 to December 2020 were prospectively enrolled. IOC was done, ERCPs were performed for filling defects and documented as “true positive” if ERCP was congruent with the IOC. “False positives” were recorded if ERCP was negative. “True negative” was assigned to normal IOC and LFT after 2 weeks of follow-up. Those with abnormal LFTs were subjected to ERCP and documented as “false negative”. Sensitivity, specificity, and predictive values were calculated.

Results

A total of 180 patients were analysed. IOC showed a specificity of 85.5 % and a NPV of 88.1 % with an AUC of 73.7 %. The positive predictive value and sensitivity were 56.5 and 61.9 % respectively.

Conclusions

Routine IOC is a specific diagnostic tool with good negative predictive value. It is useful to exclude the presence of CBD stones when LFT is normal. It does not significantly prolong the length of hospitalization or duration of the cholecystectomy hence reducing the incidence of undetected retained stones and preventing its complications effectively.
Combining bag of visual words-based features with CNN in image classification
Authors: Marzouk Marwa A. , Elkholy Mohamed
Published: March 2024

Although traditional image classification techniques are often used in authentic ways, they have several drawbacks, such as unsatisfactory results, poor classification accuracy, and a lack of flexibility. In this study, we introduce a combination of convolutional neural network (CNN) and support vector machine (SVM), along with a modified bag of visual words (BoVW)-based image classification model. BoVW uses scale-invariant feature transform (SIFT) and Oriented Fast and Rotated BRIEF (ORB) descriptors; as a consequence, the SIFT–ORB–BoVW model developed contains highly discriminating features, which enhance the performance of the classifier. To identify appropriate images and overcome challenges, we have also explored the possibility of utilizing a fuzzy Bag of Visual Words (BoVW) approach. This study also discusses using CNNs/SVM to improve the proposed feature extractor’s ability to learn more relevant visual vocabulary from the image. The proposed technique was compared with classic BoVW. The experimental results proved the significant enhancement of the proposed technique in terms of performance and accuracy over state-of-the-art models of BoVW.
Association and disparities of food insecurity and exposure to violence: analysis of the National Survey of Children’s Health
Authors: Bloom Molly , McCoy Cassie , Hendrix-Dicken Amy D. , Elenwo Covenant , Baxter Michael A. , Coffey Sara , Hartwell Micah
Published: March 2024

Context

Lack of access to food is a significant concern for child well-being, and it creates many health disparities and adverse social outcomes. Food insecurity and its many associated risk factors increase parental stress, which are strongly correlated with an increased risk of child abuse and maltreatment. Research now identifies being witness to domestic abuse as a form of child maltreatment, and exposure to violence in the community has been shown to result in similar long-term impacts.

Objectives

Given the potential for lifelong adverse effects from experiencing adverse childhood events involving violence and food insecurity, our primary objective was to assess the relationship between the two and disparities among demographic factors.

Methods

We conducted an observational study utilizing data from the National Survey of Children’s Health (NSCH) 2016–2021. The NSCH is a United States nationally representative survey completed by primary caregivers of one child per home aged 0–17 years. We determined population estimates (n=216,799; n=83,424,126) and rates of children experiencing food insecurity and parent-reported exposure to violence. We then constructed logistic regression models to assess associations, through odds ratios (ORs), between food security and exposure to violence including demographic factors.

Results

Among the sample, 5.42 % of children experienced low food security and 7.4 % were exposed to violence. The odds of exposure to violence are 5.19 times greater for children with low food security compared to food-secure children (95 % confidence interval [CI]: 4.48–6.02). Indigenous and Black children were 7.8 and 6.81 times more likely to experience or witness violence when food insecure compared to food secure White children, respectively (95 % CI: 3.18–19.13, 5.24–8.86 respectively).

Conclusions

Food insecurity was associated with increased odds of children experiencing and/or witnessing violence compared to those who were food secure. The interaction between exposure to violence and food insecurity also disproportionately impacts children with specific demographic factors, notably race/ethnicity including multiracial, Indigenous, and Black children. By developing and adapting strategies to improve food security, it is possible to indirectly reduce the rates of childhood exposure to violence and the long-term impacts that result.
Medium and large mammals in an Andean National Park in southwestern Colombia
Authors: Barajas-Rebolledo Laura Maria , Guarín Edwar , Roncancio Duque Néstor , Ramírez-Chaves Héctor E.
Published: March 2024

The Complejo Volcánico Doña Juana – Cascabel National Natural Park is located between the departments of Cauca and Nariño in the southern Andean Region of Colombia. Due to the country’s social challenges and the difficult access to the Doña Juana – Cascabel National Natural Park the biological knowledge concerning groups such as mammals, is based on studies prior to the park’s declaration, reports from park rangers and residents. Between October 2017 and February 2018, eight trail cameras were set up in the Doña Juana – Cascabel National Natural Park and its buffer zone. We reviewed the information captured in these cameras and identified eight mammal species, three of which are new reports for the park. In total, 24 species were reported, including charismatic Andean species such as the spectacled bear (Tremarctos ornatus), and the Andean tapir (Tapirus pinchaque). The mammal diversity documented for the park is low (24 species) compared to other Andean areas. Further field work is necessary to complete the species inventories. Nevertheless, this research, to our knowledge is the first effort to study the medium and large mammals of the Doña Juana – Cascabel National Natural Park since its establishment in 2008.
Utilization of rice straw for parallel production of sugars rich extract and paper
Authors: Sharma Ashish , Rana Vikas , Gupta Praveen K. , Pandey Neetu
Published: March 2024

Complete utilization of different agricultural wastes is a great challenge before human society. The present study reports the valorization of rice straw for simultaneous production of reducing sugars and paper. The rice straw was first pre-extracted with water under different reaction conditions sequentially followed by papermaking. A maximum total reducing sugars (TRS) upto 12.38 % was extracted through aqueous pre-treatment. The pulped biomass was assessed for paper properties viz., tensile index, tear index, burst index, Kappa no. and brightness. For untreated rice straw tensile index, tear index and burst index were recorded within a range of 30.9–35.8 N m/g; 2.25–2.62 mN m2/g and 1.91–2.35 kN/g respectively where as it were ranged from 31.1 to 33.7 N m/g, 2.02–2.51 mN m2/g and 1.78–2.08 kN/g respectively for pretreated rice straw. Moreover, for untreated rice straw, kappa number and brightness were recorded in a range from 20.7 to 26.6 and 32.4 to 36.7 % ISO respectively, whereas for pre-treated rice straw it ranged from 19.1 to 26.3 and 31.6 to 35.5 % ISO respectively. High performance liquid chromatography (HPLC) analysis and field emission gun scanning electron microscopy (FESEM) were further employed during the study. In overall, extraction of underutilized sugars prior to pulping may prove as an efficient route for apt utilization of sugars followed by papermaking in near future.
Doped polymethyl methacrylate (PMMA) as proton exchange membrane for microbial fuel cell
Authors: Srivastava Richa , Gaurav Kumar
Published: March 2024

The urgent need for clean and affordable energy solutions to combat energy scarcity and global warming is paramount. Fuel cells, particularly microbial fuel cells (MFCs), offer a promising avenue for sustainable energy production. Proton exchange membranes (PEMs) are critical components in MFCs, but the high cost of Nafion, the gold standard PEM, poses a significant challenge. In this pioneering study, we tried to fabricate PEMs by crafting them from polymethyl methacrylate (PMMA), coupled with innovative combinations of potassium thiocyanate (KSCN) and citric acid. The synthesized membranes were studied for their water uptake capacity, ion exchange capacity and potential applications in MFC. The maximum remarkable water uptake capacities of up to 70 % for 10 % KSCN and 64 % for 7.5 % citric acid compositions was observed. Furthermore, these PEMs exhibit ion exchange capacities (IEC) ranging from 0.024 to an impressive 0.69 meq/gm, with the 7.5 % citric acid variant showcasing the highest IEC (0.69 meq/gm). The membranes having better IEC were applied to microbial fuel cell. This results in maximum power density of 50.03 μw/cm2, underscoring the tremendous potential these membranes hold as a cost-effective and environmentally friendly alternative to conventional PEMs in MFCs.
The Swedish version of the pain self-efficacy questionnaire short form, PSEQ-2SV: Cultural adaptation and psychometric evaluation in a population of patients with musculoskeletal disorders
Authors: Ekhammar Annika , Numanovic Patrik , Grimby-Ekman Anna , Larsson Maria E. H.
Published: March 2024

Objectives

Measuring pain self-efficacy is suggested as relevant in patients with musculoskeletal disorders (MSDs) in a primary care setting. However, there is no pain self-efficacy questionnaire (PSEQ) available in Swedish. The aim of this study was to translate and culturally adapt PSEQ-2 to Swedish and evaluate reliability and validity in a population of patients with MSDs.

Methods

A translation and cultural adaptation together with psychometric evaluation of reliability and validity were performed according to guidelines with three groups of participants with MSDs. First, a convenient sample of 25 individuals were interviewed in the translation process. Next, 61 participants completed the test–retest survey via social media or QR codes in waiting rooms in rehabilitation clinics. Finally, to evaluate construct validity questionnaires were obtained from 132 participants with MSDs in an ongoing randomized controlled trial.

Results

The Swedish version of PSEQ-2 showed adequate face and content validity. The results of 0.805 on Cohen’s weighted kappa indicate that the reliability of PSEQ-2SV in a group of adults with MSDs is on the border between substantial and almost perfect. The point estimate regarding relative rank variance, measuring the individual variation within the group, and relative concentration, the systematic change in how the assessments are concentrated on the scale’s categories, shows minor systematic differences and some random differences not neglectable. The construct validity of pre-defined hypotheses was met to some degree.

Conclusion

The PSEQ-2SV has been accurately linguistically translated and tested for reliability and validity, in a population of MSDs, and is deemed to be able to be used in the clinic and in research. As there were some concerns regarding measurement error and systematic bias, more research could be of value.
Relationship between perfectionism, overactivity, pain severity, and pain interference in individuals with chronic pain: A cross-lagged panel model analysis
Authors: Enomoto Kiyoka , Sasaki Jun
Published: March 2024

Objectives

Overactivity is a characteristic of individuals with chronic pain. Previous cross-sectional studies demonstrated a relationship between perfectionism and overactivity. Therefore, the present study used a longitudinal design to determine whether pain severity and pain interference were exacerbated by overactivity and whether overactivity was exacerbated by perfectionism.

Methods

Participants with chronic pain were recruited using crowdsourcing. The participants completed the questionnaires at three time points: T1, T2, and T3 (September, October, and November 2021, respectively). The questionnaire assessed overactivity, perfectionistic strivings, perfectionistic concerns, pain severity, and pain interference. We created cross-lagged panel models to examine the hypothesized relationships among pain, overactivity, and perfectionism.

Results

After excluding ineligible participants and invalid response sets, we analyzed the questionnaires completed by 666 participants at T1, 560 at T2, and 554 at T3. The average duration of chronic pain at T1 was 36.35 ± 53.53 months. Perfectionistic strivings were partially linked to overactivity, and pain interference was partially related to overactivity. Contrary to our expectations, overactivity did not predict pain severity or pain interference.

Conclusions

The hypotheses that perfectionism exacerbates overactivity and that overactivity exacerbates pain severity and pain interference were not supported. These results may have been affected by the quality of the assessment of overactivity. Therefore, further research with a refined evaluation of overactivity is required.
A diabetes mellitus és a táplálkozási szokások egészségbiztosítási és egészség-gazdaságtani összefüggései
Authors:   , Molnárné Csákvári Tímea
Published: March 2024

A tézis a krónikus nem fertőző betegségek közül a 2-es típusú diabetes mellitust (T2DM) elemzi részletesebben, valamint annak fő kockázati tényezőjét, a táplálkozási szokásokat. Tekintettel arra, hogy a diabetes mellitusnak bizonyított rizikófaktora a helytelen táplálkozás, egy, az egészségtelen élelmiszereket (is) célzó adónem hozzájárulhat többek között e betegség prevalenciájának és incidenciájának csökkenéséhez. Leírtuk, hogy az egyes makrotápanyagok elérhetőségében nagy eltérések mutatkoznak nemzetközi szinten és a kalória-, a fehérje-, valamint a zsírbevitel emelkedést mutatott. Az Egészségbiztosítási Alap részletes elemzése során megállapítottuk, hogy az ún. egyéb bevételek képezik a bevételi oldal egyre jelentősebb szegmensét (2020-ban 179,0 milliárd forint, mely hozzávetőlegesen a járóbeteg szakellátás kiadásait fedezi). Külön kitértünk az Alapon belül a népegészségügyi termékadó (NETA) hatáselemzésére a háztartások vásárlási szokásainak vizsgálata útján. Eredményeink szerint a NETA nem csökkentette lényegesen a háztartások egészségtelen ételekkel kapcsolatos vásárlási szokásait, azonban annak éves adóbevétel folyamatosan emelkedik 2011 óta. A T2DM és szövődményei és a diabeteses polyneuropathia (DPN) betegségteher-elemzése során kimutattuk, hogy a lakosság 6,19%-a T2DM miatt gyógyszeres kezelésére szorult, míg a DPN prevalenciája 0,92% volt 2018-ban. Emellett majdnem minden második T2DM-es beteg küzdött komplikációval. Mindemellett a Nemzeti Egészségbiztosítási Alapkezelő 2018-ban közel 50 milliárd forintot fordított T2DM és DPN kezelésére, egészségbiztosítási rendszerre gyakorolt terhük nagyon jelentős. Eredményeinkkel rámutatunk arra, hogy jelentős kiadásokat fordítunk egy megelőzhető betegség kezelésére. Ha a megfelelő egészségpolitikai eszközökkel támogatjuk a prevenciót és az egészségtudatos szemléletmód erősítését, az így felszabadított források az egészségügy más területein lennének hasznosíthatók. Emellett az olyan innovatív forrásteremtési eszközök bevezetése, mint például a NETA hatékony módszer az egészségügyi ellátórendszer bevételi oldala erősítésének.
Considerações sobre o corpo em Pierre Bourdieu e Michel Foucault
Authors: Flôres Vasques Lucas , Caetano de Souza Thaís
Published: March 2024

O artigo busca aproximar as abordagens de Michel Foucault (1975; 1993; 1988; 1985; 2006) e Pierre Bourdieu (1983; 2007; 2012; 2013) sobre o corpo. Para isso, utilizamos pesquisa bibliográfica que mobilizou especialmente os conceitos de disciplina e vigilância de Michel Foucault, bem como doxa e violência simbólica em Pierre Bourdieu. Essa pesquisa busca colaborar com a elaboração de pesquisas sobre o corpo que enfatizem as abordagens desses autores de forma conjunta e complementar.
A linguística saussuriana, seus efeitos e desdobramentos
Authors: Neumann Daiane , Gomes Lauro , Milano Luiza
Published: March 2024

Este Dossiê apresenta à comunidade acadêmica importantes leituras acerca de questões-chave da linguística saussuriana e põe em destaque, ao longo dos artigos que o constituem, muitos de seus principais efeitos e desdobramentos no interior de diferentes quadros teóricos.
Notas sobre o estatuto da palavra-tema no anagrama saussuriano
Authors: Maria Monteiro de Carvalho Glória , De Fátima Vilar de Melo Maria , Anselmo Tavares de Melo Robson
Published: March 2024

Os estudos de Saussure relativos à linguagem humana contemplam questões de natureza diferente, compreendida, às vezes, como paradoxais. Dos seus estudos, apenas o Curso de Linguística Geral foi amplamente divulgado e reconhecido; os demais estudos permanecem pouco conhecidos ou, até mesmo, ignorados. Dentre esses, figuram os estudos referentes ao fenômeno anagramático descoberto por Saussure em versos saturninos, homéricos, latinos, Vedas etc. Dada a importância dessas questões que eles suscitam no tocante a pontos cruciais do pensamento desse autor, este artigo consiste numa tentativa de abordar o estatuto da palavra-tema na teoria saussuriana do anagrama, colocando em discussão sua condição de substância. Nessa perspectiva, recorremos à concepção de palavra-coisa, na poesia concreta brasileira, apenas a título de ilustração, com o objetivo de lançar um pouco de luz sobre a complexa questão implicada no estatuto da palavra-tema.
As leis fonéticas no pensamento saussuriano
Authors: Pilotto Figueiredo Camila
Published: March 2024

O presente artigo objetiva apresentar a conceitualização saussuriana das leis fonéticas, atentando para as críticas realizadas pelo autor e traçando considerações introdutórias acerca de sua relevância. A escolha da temática justifica-se porque, no pensamento saussuriano, trata-se de um tema insuficientemente explorado, apesar de frutífero no que tange à compreensão da relação entre sincronia e diacronia. A metodologia aplicada será de cunho bibliográfico. Primeiramente, contextualizaremos a temática, através de obras de abordagem historiográfica; logo após, partiremos do livro Curso de Linguística Geral (Saussure, 2006) e utilizaremos as edições críticas ao CLG de Rudolf Engler (1968) e de Tullio de Mauro (1967), o Premier Cours de Linguistique Générale (1996), o Deuxième Cours de Linguistique Générale (1997) e os Escritos de Linguística Geral (2004). Concluiremos o artigo afirmando que, apesar de Saussure negar às leis fonéticas o status de leis, elas são fundamentais para a renovação da língua.
A repercussão da distinção saussureana entre forma e substância na teoria linguística de Hjelmslev
Authors: Luiz de Castro Dias Fábio , Antônio Villarta-Neder Marco , Maria Ferreira Helena
Published: March 2024

Este artigo tem por objetivo discutir teoricamente, da perspectiva de uma comparação epistêmica, a influência da linguística de Ferdinand de Saussure [1857-1913] sobre o pensamento teórico de Louis Hjelmslev [1899-1965], um dos fundadores do Círculo Linguístico de Copenhague. Especificamente, o nosso escopo é a repercussão da distinção entre forma e substância elaborada pelo linguista genebrino na linguística hjelmsleviana, teoria em que o conceito de forma ocupa um lugar sistemático central. Com o intuito de isso realizar, partimos de uma sucinta definição dessa distinção na teoria linguística de Saussure, observando as razões da sua instituição, assim como uma parte dos seus fundamentos. Em seguida, buscamos compreender como essa diferenciação constitui sistematicamente o edifício epistêmico da teoria de Hjelmslev. Com este trabalho, esperamos trazer à tona, na nossa atual conjuntura, um conjunto de questões em torno de duas das mais importantes teorias da linguística geral do século XX.
O trabalho com os sentidos em Saussure e Pêcheux
Authors: Ernst Aracy
Published: March 2024

Este artigo apresenta a possibilidade de convergência entre Saussure e Pêcheux no que concerne ao trabalho com o sentido, baseado em duas categorias teóricas: a noção saussuriana de valor, intrinsecamente ligada à visão sistêmica de língua, e a noção lacaniana de real, fundamentalmente compreendida como aquilo que resiste à simbolização. O trabalho retoma aspectos do artigo O casaco de Arlequim: uma reflexão sobre a semântica proposta por Michel Pêcheux (2005) relativos à noção de valor e mostra que o distanciamento divulgado entre esses dois autores denega aquilo que os aproxima no trato com a língua: a poesia como seu reverso.
A ética amefricana como prática pedagógica da literatura afro-latino-americana
Authors: Mendes Coelho Rogério
Published: March 2024

O presente artigo discute a ausência das contribuições afrodescendentes para o processode formação da literatura hispano-americana pela historiografia, crítica literárias ecurricularização escolar. Atribui-se ao fato a predominância dos referentes civilizacionaiseurocêntricos na América Latina em virtude das relações coloniais no continente. Reflexono propósito que releva a motivação das Epistemologias do Sul, ao aproximar osfundamentos tradicionais e sapienciais que aproximam África e América, bem comoreflexões do Coletivo Decolonial (Mignolo, 2020), no propósito de (re)pensar osdesdobramentos históricos, políticos e sociais da relação entre a Modernidade eColonialidade para a América Latina, dentro do que propôs o conceito Cidade Letrada(Rama, 1985), o estudo destaca a importância e a centralidade do patrimônio ancestral e aprodução crítica da epistemologia afrodescendente independente, no intuito de melhorvisibilizar a contribuição cultural e intelectual africana e afrodescendente no processo deformação do pensamento fundamental e crítico latino-americano.
Escrita, escritura, inscritura
Authors: Moura de Quadros Denis
Published: March 2024

Partindo da afirmação de Audre Lorde (2019) de que as ferramentas do colonizador não nos auxiliarão a realizar uma mudança autêntica, apresento ferramentas e conceitos ogúnicos que estão ainda em formação na forja-útero da amefricanidade. Assim, trago o questionamento das formas de leitura e análise de obras de autoria negra, em especial de mulheres negras, partindo da escrita, que é coletiva, passando ao conceito de escritura, portadora de axé e documento histórico, culminando na inscritura, oralituralizada e coletiva que atravessa os corpos negrofemininos refletindo consciência histórica e refratando estereótipos gastos da democracia racial. Amefricanidade é aqui compreendida como potencialidade que nos permite pensar, formular e aplicar novos critérios epistemológicos e novas categorias de análise. Os conceitos, sobretudo, de escrevivência (Evaristo, 2005, 2007, 2010) e oralitura (Martins, 1997) nos auxiliam nesse processo, bem como outras pesquisas de intelectuais negros e negras
Narrar e reescrever a história do negro no Rio de Janeiro do século XX
Authors: Martins Rodrigues Thiago
Published: March 2024

O presente artigo tem como objetos de análise os romances Cidade de Deus (1997) e Desde que o samba é samba (2012), ambos do carioca Paulo Lins. A hipótese é que há uma perspectiva histórica posta entre as duas obras, que pode ser depreendida com base na análise dos narradores que se querem afastados e imparciais e, consequentemente, dos seus pontos de vista narrativos. O objetivo, assim, consiste em caracterizar e examinar os pontos de vista narrativos construídos em cada um dos romances a fim de apreender as tensões e os enfoques histórico e literário das obras. Com base no acúmulo da crítica brasileira, conclui-se que os pontos de vista narrativos, em meio a embates e tensões, de ordem formal e social, decorrem de seus momentos históricos de produção.
Educação das relações étnico-raciais no Material Rioeduca de Língua Portuguesa do 8º ano para o 1º semestre de 2023
Authors: Feliciano Moreira Isabela
Published: March 2024

Este artigo pretende investigar o modo como o Material Rioeduca de Língua Portuguesa do 8º ano para o 1º semestre de 2023 se compromete com a Lei nº 10.639/2003 e com as Diretrizes Curriculares para a Educação das Relações Étnico-Raciais e para o Ensino de História e Cultura Afro-Brasileira e Africana, a partir de atividades propostas com base em dois textos referentes ao escritor guineense Eliseu Banori. A investigação se dá sob a perspectiva de política linguística definida por Rajagopalan (2013), considerando também a concepção de língua/linguagem de Valentin Volóchinov (2019) e a compreensão de como ela atua na educação, pela ótica de Paulo Freire em Política e educação (2022). A análise também parte da obra A Escola não é uma empresa, de Christian Laval (2004), a fim de sinalizar a presença da lógica neoliberal na gestão da educação carioca para elaboração do material didático analisado.
GLUTENSİZ ŞALGAM SUYU ÜRETİMİ VE TS11149 ŞALGAM SUYU STANDARDINA UYGUNLUĞUNUN ARAŞTIRILMASI
Authors: Yanardağ Karabulut Şeyda , Bulut Sami
Published: March 2024

Bu çalışmada geleneksel bir Türk içeceği olan şalgam suyunun üretiminde kullanılan bulgur unu yerine %60 mısır ve %40 pirinç unu karışımı kullanılarak glutensiz şalgam suyu üretilmiş ve TS11149 şalgam suyu standardına uygunluğu araştırılmıştır. Elde edilen veriler glutensiz şalgam suyunun duyusal olarak, renk ve ekşilik hariç, bulgur unlu şalgam suyu ile karşılaştırılabilir nitelikte olduğunu göstermiştir. Bulgur unu (gluten) içeren ve gluten içermeyen şalgam sularının üretildiği bu karşılaştırmalı çalışmadan elde edilen veriler; üretilen şalgam sularının toplam asit (9.37-6.76>6 g/L), kül (13.94-12.98<20 g/L) ve tuz (1.55-1.47<%2) kriterleri bakımından TS11149 ile uyumlu olduğu, pH (2.83-2.87<3.3-3.8) ve toplam kuru madde (21.49-18.06<25 g/L) değerlerinin TS11149’daki değerlerden düşük olduğu, toplam mezofilik aerobik bakteri (TMAB) sayısının ilgili standarttaki limit değerden ( 6.15-7.77>5 log KOB/mL) yüksek olduğu ve sadece bulgur unu ile üretilen şalgam suyunun briksinin standarttaki limit değeri (2.83>2.5 ⁰B) karşıladığı şeklindedir. Literatür verileri ve bu çalışma ile elde edilen sonuçlar TS11149 şalgam suyu standardında revizyon yapılması gerektiğini ortaya çıkarmıştır.