bluuebunny/crossref_metadata_2025 huggingface dataset:
Begabungsdiagnostik unter der Lupe
Authors: Meier-Wyder Anuschka , Hagmann-von Arx Priska
Published: November 2023

Jedes Kind hat das Recht auf eine individuelle Förderung, zu der auch die Begabungsförderung in der Schule gehört. Um Unterforderung begabter Kinder und damit negative Auswirkungen auf ihre Entwicklung zu vermeiden, ist es entscheidend, Begabungen frühzeitig zu erkennen. In diesem Artikel besprechen wir zuerst die Hochbegabung als weit überdurchschnittliche Intelligenz – und damit verbunden die Intelligenzdiagnostik. Anschliessend thematisieren wir (Hoch-)Begabungsmodelle, die Begabung als mehrdimensionales und dynamisches Konzept modellieren. Schliesslich erörtern wir Möglichkeiten und Herausforderungen der Begabungsdiagnostik und ziehen ein Fazit für die schulische Praxis.
Multiprofessionelle Zusammenarbeit am Beispiel der Grafomotorik
Authors: Sägesser Wyss Judith , Maurer Michelle N. , Eckhart Michael
Published: November 2023

Dieser Artikel liefert ein Beispiel für die Zusammenarbeit zwischen Psychomotoriktherapeut:in und Lehrperson. Diagnostisches und fachspezifisches Wissen aus der Heilpädagogik, Psychomotorik und Grafomotorik kann die Lehrpersonen unterstützen in der Gestaltung des Unterrichts für heterogene Klassen. An einem Fallbeispiel wird dargelegt, wie die Diagnostik mit GRAFOS-2 in die Unterrichtsplanung und -umsetzung einfliessen und durch situationsbezogene Beobachtungen im Schulalltag ergänzt werden kann. Dabei teilt sich ein multiprofessionelles Team die Verantwortung für die Unterrichtsgestaltung.
ReqMLSCity: Uma ferramenta de análise de requisitos utilizando aprendizado de máquina para aplicações de cidades inteligentes
Authors: Silva Bruno Carvalho da , Nascimento Rodrigo , Viana Davi
Published: November 2023

Erros como ambiguidade e incompletude na fase de eliciação de requisitos e nos documentos gerados podem prejudicar o restante do processo de desenvolvimento. Desta forma, uma análise desses documentos é essencial para o avanço adequado de desenvolvimento do software. A análise manual destes documentos de requisitos é de alto custo, tanto financeiro quanto de tempo, e tendenciosa a falhas, sobretudo quando o sistema possui uma grande complexidade. A detecção automática desses erros se apresenta como uma abordagem promissora. Adicionalmente, um problema recente no campo da engenharia de requisitos é sobre como tratar contextos recentes. O objetivo deste trabalho é apresentar a ferramenta ReqMLSCity, uma evolução da ferramenta ReqSCity, que auxilia o processo de análise de requisitos de maneira automática, focando na análise de ambiguidade e geração de incompreensão de sentido a partir de estruturas sintáticas defeituosas através do uso de PLN. A ferramenta é capaz também de avaliar se o requisito está no contexto de cidades inteligentes e fornece sugestões para melhorar a completude de sentido usando como base a ontologia de domínio M3-Ontology. A avaliação inicial da proposta foi feita realizando um estudo piloto com 55 requisitos e a comparação de análise é feita com base nos resultados da avaliação de dois especialistas em engenharia de software.
Neue journalistische Erzählformen für Nachhaltigkeit
Authors: Lorenz Stella
Published: November 2023

Narrating issues of sustainability creatively is as challenging for journalists as it is full of opportunities. A range of different ‘ecological genres’, combining information and experimental literary qualities, can help to make the current ecological crisis tangible and shape social transformation. In this book, the author analyses how printed magazines as ‘laboratories’ for journalistic experiments contribute to that. She explores articles from a range of German publications and draws on expert knowledge from practitioners in order to show how sustainability journalism can position itself for the future, offering guidance to sustainability journalists and ideas for future practice.
Epidemiología y características clínico patológico de los linfomas b difuso de células grandes del servicio de hematología atendidos en el Hospital Clínico Viedma en la gestión 2019-2022
Authors: García Cristian , Anze Barrientos Grace , Villegas Navas Ricardo
Published: November 2023

Objetivo General: Determinar la epidemiologia y características clínico patológicos de pacientes diagnosticados con Linfoma B Difuso de células Grandes atendidos en el servicio de oncohematología gestión 2019-2022. Métodos: Es un estudio Descriptivo, longitudinal prospectiva con enfoque cuantitativo analítico, estudiando 71 pacientes entre las edades mayores de 15 años, diagnosticados de Linfoma no Hodgkin ingresando al estudio 48 pacientes diagnosticados con Linfoma B Difuso de Células Grandes atendidos en el servicio de hematología del Hospital Viedma. Resultados: De acuerdo a rango de edad en la población de estudio es entre 45 a 74 años siendo un 73%, el sexo femenino con una frecuencia del 52%, con el estadio de Ann Arbor III -IV corresponde a 66.7% de la población, las regiones ganglionares comprometidas son > de 3 regiones con 29.2% y presencia de conglomerado ganglionar 35.4%, de la población de estudio el 56.7% realizaron tratamiento de los cuales solo el 31.3% realizo con Rituximab y la respuesta al tratamiento con 61% en pacientes que cumplieron los 6 ciclos de quimioterapia en valor de Spearman existe correlación y significativa (rho Spearman =1, sig=0.003) correlación entre las dos variables. Conclusiones: La incidencia de Linfoma B Difuso de Células Grandes es el 67.6% el diagnóstico realizado por inmunohistoquímica estadificándose al diagnóstico existiendo correlación con respuesta al tratamiento de 61% en los que completaron 6 ciclos, pero no existiendo correlación de datos con marcador para doble expresión BCL-2 y CMY por no ser solicitada en la población de estudio.
Hematocolpos por Tabique transverso vaginal obstructivo: reporte de un caso
Authors: Rojas Mariel Antezana , Rosas Rojas María Rosario
Published: November 2023

El tabique vaginal transverso es una anomalía obstructiva infrecuente del aparato genital femenino siendo la más frecuente el himen imperforado. El diagnóstico se basa en anamnesis, una exploración física y estudios de imagen. El  manejo terapéutico  debe realizarse según la extensión del tabique su grosor, localización y clínica de la paciente.
Caso; niña de 14 años con  distensión abdominal progresiva, acompañada de dolor en hipogastrio. No había presentado menarca aun, con antecedente post quirúrgico de laparotomía exploradora + exeresis de quiste endometriosico, drenaje de hematocolpos, himenotomia mediante una dilatación  con histerometro del tabique, es dada de alta en 17 días. Retorna a servicio a los 3 meses, presentando dolor y distensión abdominal, llegando a diagnosticarse hematotra, tabique transverso, se realiza drenaje y  fibrolisis y se procede a colocar un dilatador vaginal con el fin de impedir el cierre, esto hizo posible el exitoso tratamiento con buena evolución y sin recidivas.
استخدام ممارسي العلاقات العامة لتقنيات الاتصال الرقمي في المؤسسات الحكومية الأردنية
Authors: عبابنة أنسام
Published: November 2023

هدفت الدراسة إلى رصد استخدامات ممارسي العلاقات العامة لتقنيات الاتصال الرقمي في المؤسسات الحكومية الأردنية، وتعدّ هذه الدراسة من نوعية البحوث الوصفية، والتي اعتمدت على منهج المسح، حيث تمّت الدّراسة على (65) مفردة كحصر شامل لجميع مفردات مجتمع الدراسة المتمثل بممارسي العلاقات العامة في المؤسسات الحكومية الأردنية، ولتحقيق أهداف الدراسة اعتمدت الباحثة على الاستبانة كأداة لجمع البيانات. وتوصلت الدّراسة إلى أن: درجة استخدام ممارسي العلاقات العامة لتقنيات الاتصال الرقمي في المؤسسات الحكومية الأردنية جاءت (بدرجة متوسطة) بمتوسط حسابي بلغ (2.15)، وأظهرت الدراسة أن أبرز الوسائل التقنية استخداماً في إدارة العلاقات العامة هي مواقع التواصل الاجتماعي متمثلة بالفيس بوك بنسبة (92.3%) تلاه تطبيق واتساب بنسبة (47.7%)، وبينت الدراسة أن من أهم المزايا التي تقدمها تقنيات الاتصال الرقمي للمساهمة في إنجاح أعمال العلاقات العامة هي إرسال واستقبال المعلومات بشكل فوري تلاه إيصال المعلومات إلى أكبر عدد ممكن من الجمهور ، وأظهرت الدراسة أن من أهم معوقات توظيف تقنيات الاتصال الرقمي في ممارسة أنشطة العلاقات العامة هي عدم المعرفة ببرامج العلاقات العامة في البيئة الرقمية وضعف القدرة على استخدام تقنيات الاتصال الرقمي من قبل ممارسو العلاقات العامة . الكلمات الدّالة: استخدام، العلاقات العامة، المؤسسات الحكومية، تقنيات الاتصال الرقمي، ممارسي العلاقات العامة.
GENETIC MODIFICATION OF Escherichia coli FOR L-LACTIC ACID PRODUCTION
Authors:   , Kanjanapattanakul Wattanai
Published: November 2023

Lactic acid is a chemical compound that has been used in many industrial applications. Therefore, effective process of lactic acid production is required to meet the higher demand of PLA plastic. The lactic acid can be produced by microbial fermentation including lactic acid bacteria (LAB) and fungi. Currently, Rhizopus oryzae has been interested due to its pure L(+)-lactic acid production. However, without additional applications, its morphology is difficult to control during fermentation process because its mycelium can cause a problem in stirred-tank bioreactor. To overcome such problem, genetic engineering technique for generating genetically modified Escherichia coli will be used. In this research, the gene replacement method and applied different plasmid system were used. According to a limitation of gene replacement technique, the DNA fragment for L(+)-lactic acid production was designed by containing ORF of R. oryzae ldhA gene flanked by upstream and downstream region of E. coli ldhA gene and planned to replace E. coli chromosomal ldh gene by linear transformation technique with plasmid pKD46. However, the construction of DNA fragment for gene replacement was unsuccessful. For applied different plasmid system, the pUC19 and pBluescript II KS(+) were used to harbor R. oryzae ldhA gene. The recombinant E. coli strains were fermented at 37 oC for 48 hours under anaerobic condition. The recombinant E. coli strain name TW2 which applied pUC19 vector harboring R. oryzae ldhA gene was successfully produced L(+)-lactic acid with higher yield and LDH activity, but lower intracellular pyruvate concentration than RB24 (pBluescript II KS(+) harboring R. oryzae ldhA gene). The better performances than pBluescript II KS(+) vector on ldhA expression may resulted from lower promoter strength. However, L(+) lactic acid production from TW2 strain was lower than wild type strain. This may come from the function of the other lactate dehydrogenase (LLDH) in wild type strain, and the shift to other fermentative pathways in TW2 strain.
ANTILIPASE ACTIVITY AND CHEMICAL CONSTITUENTS OFSolanum aculeatissimum Jacq. FRUITS
Authors:   , Megwee Weerasak
Published: November 2023

The nineteen Thai medicinal plants were investigated for anti-lipase activity. These plants were extracted with methanol and DI water. The methanolic and aqueous crude extracts of these plants were evaluated on anti-lipase activity. It was found that the methanolic extract of fruits of Solanum aculeatissimum showed the strongest inhibition of lipase activity. Thus, methanolic crude extract of S. aculeatissimum fruits were extracted by liquid-liquid extraction to obtain hexane, ethyl acetate, n-butanol and aqueous crude extracts. The hexane and n-butanol crude extracts of S. aculeatissimum fruits showed strong lipase inhibitory activity at a concentration of 25 mg/mL with percent inhibition as 81.88 ± 0.98% and 80.74 ± 1.39%, respectively. The ethyl acetate crude extract of S. aculeatissimum fruits showed moderate lipase inhibitory activity at a concentration of 25 mg/mL with percent inhibition as 60.41 ± 7.36%. Aqueous crude extract showed weak activity at a concentration of 25 mg/mL with percent inhibition as 22.12 ± 1.29%. The hexane and n-butanol crude extracts were further isolated to obtain six compounds. The hexane crude extract was isolated to give a mixture of fatty acids (compound 209) and steroidal mixture (compound 210). The n-butanol crude extract was isolated to give a mixture of steroidal glycosides (compound 211), solasodine (compound 212), solasonine (compound 213) and alpha-solanine (compound 214). Compounds 209 - 212 showed weak lipase inhibitory activity with IC50 values of 523.30 ± 0.91, 675.58 ± 1.29, 565.06 ± 1.27 µg/mL and 404.26 ± 1.39 µM, respectively. Compounds 213 and 214 exhibited moderate lipase inhibitory activity with IC50 values of 198.75 ± 0.96 and 223.43 ± 0.16 µM, respectively. Orlistat showed lipase inhibitory activity with IC50 value of 0.27 ± 0.07 µM. Compounds 209 - 214 exhibited in ranging of weak to moderate lipase inhibitory activity whereas hexane and n-butanol crude extracts showed strong lipase inhibitory. These results suggested that the chemical constituents of S. aculeatissimum fruits should be further investigated for the active components responsible for anti-lipase activity.
REINFORCEMENT OF NATURAL RUBBER WITH COAL FLY ASH AND SYNTHETIC ZEOLITE
Authors:   , Wikranvanich Jaygita
Published: November 2023

Natural rubber (NR) is a biopolymer consisting primarily of isoprene units produced by plants. Due to its high elasticity property, NR has been widely used for manufacturing of many industrial products. Generally, the addition of fillers in NR is required for improving its properties. This work focuses on the preparation of NR composite films by using coal fly ash and synthetic zeolite from coal fly ash as filler. The objective is to exploit coal fly ash, industrial waste as a raw material for value-added products. It can also help reduce the area for disposal of coal fly ash by landfill. Moreover, this is not only to add value of coal fly ash but also the mechanical properties of the NR composite films were improved. The NR composite films were prepared via a latex aqueous micro-dispersion process. The morphology of NR composite films combing with CFA, CFAT, SA and ZA at different loading contents were characterized by field emission scanning electron microscopy (FE-SEM). The chemical structure of NR composite films were investigated Fourier Transform Infrared (FTIR) Spectroscopy. The mechanical properties, crystallinity, water absorption capacity and toluene uptake of NR composite films were analyzed. The results demonstrated that at a suitable loading range, the mechanical properties (Young’s modulus, tensile strength, elongation at break) of the composite films were better than those of NR films. The composite films, especially NR-CFA also demonstrated considerably more resistance and structural stability in both water and toluene. As compared to the NR film, the WAC (water absorption capacity) and TU (toluene uptake) of the composite films were decreased. However, according to hydrophilic property of the fillers, the WAC values of the composite films were slightly increased with the increase of filler loading from 2-20 phr.
The ethanol dehydration over alumina-spherical silica particle composite catalyst from modified sol-gel method
Authors:   , Tochaeng Phairoj
Published: November 2023

The spherical silica particle (SSP) and alumina silica composite (Al-SSP) catalysts were investigated for catalytic properties and catalytic activity via dehydration of ethanol. The SSP and Al-SSP catalysts were prepared by modified sol gel method with various alumina content ranges from 20 to 80 mol%. The properties of these catalysts were characterized by TGA, SEM, XRD, FTIR, EDX, XRF, NH3-TPD and nitrogen physisorption. In the first part, the dehydration of ethanol in gas phase over SSP and Al-SSP catalysts was performed in a fix-bed reactor at the atmospheric pressure with various temperatures from 200 to 400 ºC. The 60Al-SSP catalyst exhibited significantly higher acidity than the others. The ethanol conversion and selectivity depend on alumina content and reaction temperature. At lower temperature, diethyl ether was produced in significant quantities, while at higher temperature, ethylene was the major product. It was found that the 60Al-SSP exhibited the highest ethanol conversion and ethylene selectivity. The next part, it was found that the increasing of water content in reactant led to the increasing of ethanol conversion and ethylene yield at high temperature. However, it remains below the ethanol conversion and ethylene yield of pure ethanol. In the last part, the performance of 60Al-SSP via time on stream (TOS) test for 10 hours was investigated. The results showed that the conversion of ethanol and ethylene yield of pure ethanol kept constant at high during 10 hours, while the conversion and the ethylene yield of bioethanol slowly increased. And the coke formation on 60Al-SSP catalyst with using pure ethanol was higher than bioethanol.
PROCESS SIMULATION OF SODIUM METHOXIDE PRODUCTION FROM METHANOL AND SODIUM HYDROXIDE USING REACTIVE DISTILLATION COUPLED WITH PERVAPORATION
Authors:   , Aeamsuksai Siriporn
Published: November 2023

This research investigates production of sodium methoxide, which has been used as a significant catalyst in biodiesel production process, from the reaction of methanol and sodium hydroxide. This work evaluates in various processes for production of sodium methoxide solution in methanol. The processes are simulated using commercial Aspen Plus program. Three processes of manufacturing sodium methoxide include 1) reactor-distillation, 2) reactive distillation-distillation and 3) reactive distillation coupled with pervaporation. The independent variables are studied at atmosphere pressure for each process such as methanol to sodium hydroxide feed mass flow ratios, Bottom rate of reactive distillation, total number of stages and feed stage location of methanol. Using the product specifications, namely, the sodium methoxide of 675 kg/h under 45 wt.% in methanol solution, containing less than 0.1 wt.% water. Then, the performance of all processes are compared. It was found that the suitable methanol to sodium hydroxide feed mass flow ratio for the reactive distillation-distillation and reactive distillation coupled with pervaporation processes is 1.4 while it is 4 for the reactor-distillation. Next, considering the energy consumption, the reactive distillation coupled with pervaporation outperforms the other two systems. The values of the required energy are 2229.37, 35.13 and 34.25 GJ/h for the reactive distillation coupled with pervaporation, reactive distillation-distillation and reactor-distillation processes, respectively. It is clear that the reactive distillation coupled with pervaporation process is the best alternative for production of sodium methoxide from methanol and sodium hydroxide.
HYBRID ESTIMATION BETWEEN SLIDING MODE OBSERVER ANDNEURAL NETWORKS ESTIMATOR FOR GAS-PHASE ETHYLENE POLYMERIZATION PROCESS
Authors:   , Kaewsanmuang Thanawat
Published: November 2023

Estimation of an ethylene concentration of gas-phase ethylene polymerization process has been known to be a difficult task because of the complex and high nonlinearity of the reactions. Besides, this process operates in a narrow temperature range, so it is to be prone to unstable behavior and runaway easily. In the past research, estimator usage produced unsatisfactory results, therefore hybrid approached is the best solution. Hybrid estimator is combination of two estimators to enhance the estimator’s performance and overcoming their limitations. This research work proposes a hybrid estimator which combined between sliding mode observer (SMO) and neural network (NN) estimator to estimate the ethylene concentration. Initially, the SMO is provided to estimate of all state variables. However, it has usually been prone to the error of the estimation between state variables and actual data. Then, the NN estimator is used to provide the estimates the ethylene concentration again for reducing the error value of SMO. Performance of the SMO-NN hybrid estimator has been compared with the SMO and NN estimator in normal, noise and various disturbance conditions. Simulation results have shown the SMO-NN hybrid estimator is the best approached in estimating the ethylene concentration and provide good accuracy and able to handle noise compared with single estimator.
MgCl2-SUPPORTED FI CATALYST ACTIVATED WITH TMA FOR ETHYLENE POLYMERIZATION
Authors:   , Pongchan Thanyaporn
Published: November 2023

In this study, the synthesis of heterogeneous catalyst, which can react with trimethylaluminum (TMA) dispersed on the MgCl2​:EtOH adduct (-OH group) is crucial to improve the ethylene polymerization activity. Therefore, in this study the proper molar ratios of TMA and MgCl2:EtOH adduct was investigated to produce high molecular weight polyethylene (HMWPE). The phenoxy-imine Ti-based catalyst (FI catalyst) was employed using TMA as cocatalyst precursor. In the first part, the suitable molar ratios of MgCl2/EtOH is 1:6. However, the amounts of TMA were varied and found properly at MgCl2/EtOH/TMA ratio of 1:6:6.3 to obtain the highest activity. The optimum mole ratio of MgCl2/EtOH/TMA ​was used in the next section. In the second part, the addition of cross-linking agents was studied to improve the MgCl2-supported FI catalyst properties. It can be found that adding glycerol could control molecular weight of polymer to obtain HMWPE, which is similar to with only FI catalyst. However, it exhibited higher catalytic activity than the FI catalyst without cross-linking agent addition.
DESIGN OF CIRCULATING FLUIDIZED BED REACTOR FOR CARBON DIOXIDE ADSORPTION AND SORBENT REGENERATION
Authors:   , Boonprasop Sutthichai
Published: November 2023

Suitable height of the riser is a crucial design parameter for operating in circulating turbulent fluidized bed regime (CTFB). It was suggested to be lower than the maximum bed expansion. The hydrodynamics of the CTFB are similar to the conventional turbulent fluidized bed which has highly uniform solid fraction while particles can circulate throughout the system as the fast fluidization. The optimum sorption temperature was found to be 60 °C where the maximum CO2 capture capacity was 295.79 milligram of CO2 per gram of the sorbent which loaded by 17 percentage of K2CO3. The used sorbent could be regenerated by either heat treatment or depressurization. Thus, the lab scale circulating fluidized bed reactor was built to study the effect of the operating parameters. The positive trend of the increasing in gas velocity showed the promise trend for the commercial use. The sorption stages of the pilot scale were determined by computational fluid technique. The alternative design suggests a riser with 1 m in diameter and 3.55 m tall with cooling tubes being set to overcome the equilibrium limitation. The optimum cooling temperatures could provide more than 95% CO2 capture of the inlet concentration. This riser does not need a large amount of energy for regeneration as conventional amine absorber.
Highly selective fluorescence sensors for biogenic amines and copper (II) ion
Authors:   , Chaicham Anusak
Published: November 2023

This research aims to design and synthesize the molecular sensors for biogenic amine sensing and fabricate 3D microfluidic device. In the case of biogenic amine, it can be classified into two group, the first group is catecholamine and the second group is histamine and histidine. For catecholamine sensing, coumarin aldehyde (CA) and pyrene boronic acid (PBA) formed intermolecular assembly in the presence of neurotransmitters and induced FRET on process from PBA to CA. The result showed DA and NE performed a guest linker including intermolecular assembly of CA and PBA resulting in FRET on/off process. In the case of histidine and histamine sensing, we designed histamine sensor, consisting of histamine blue (HB) loaded in nanoporous silica modified surface by fluorescein isothiocyanate (FC). The result showed that histamine induced an increasing fluorescent intensity at 525 nm (ex. 340 nm) by energy transfer process from HB to FC. No fluorescence response was observed in the case of histidine due to the electronic repulsion between negative charge on carboxylate based fluorescein dye on the surface and carboxylate group in histidine. In the case of 3D microfluidic device, we developed the quantitative assay by fabrication of FBA and fluorescein dye on the paper. This research designed the device into two part of assay zone and control zone for normalization the factor of flow-through rate of the sample. This device provided the linear range from 10-100 micro molar of copper ions concentration and it was applied to measure Cu2+ ion in blood sample with an acceptable value of 103.38% recovery.
Synthesis of magnetic nanocomposites for protein delivery
Authors:   , Saengruengrit Chalathan
Published: November 2023

In order to develop effective vaccines, an ability to deliver antigen into antigen presenting cells in such a way that the immune responses are induced, must be conquered. This study demonstrates that such requirement can be achieved through the combination of a magnetic field and the relatively non-toxic composite particles of superparamagnetic iron oxide nanoparticles and polymer (SPION-Polymer). In comparison of two biocompatible polymers, poly(lactic-co-glycolic acid) (PLGA) and modified poly(acrylic acid) (mPAA), SPION-PLGA demonstrated stronger magnetic response than SPION-mPAA. We chose SPION-PLGA to load bovine serum albumin (BSA, a protein antigen model). The particles were characterized using various techniques including transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), dynamic light scattering (DLS), infrared spectroscopy (IR) and Superconducting Quantum Interference Device-Vibrating Sample Magnetometer (SQUID-VSM). The SPION-PLGA loading BSA was tested for cytotoxicity and cellular uptake, before delivered them into bone-marrow derived primary dendritic cells (BM-DCs). Significant enhancement of cellular uptake of the 500 nm BSA-loaded SPION-PLGA particles can be achieved under the use of an external magnetic field. Moreover, this combined SPION-PLGA carrier and an external magnetic field can significantly enhance BM-DC maturation by upregulating MHC II, CD80 and CD86 expression. Immune response induction by this strategy is verified through a significant upregulation of the IL-12, IFN-g and IL-6 production. We anticipate these findings to be a starting point for vaccine researches involving the combined magnetic field and SPION-PLGA composite particles.
Method development for determination of genistein in jewel vine Derris scandens by electrochemical method
Authors:   , Traipop Surinya
Published: November 2023

In this work, the in-house screen-printed electrochemical sensor consisted of three-electrode system was developed for genistein determination. A silver/silver chloride (Ag/AgCl) reference electrode, a carbon counter electrode and a carbon working electrode were prepared onto a 0.3 mm-thick plastic substrate by screen-printing of conductive ink through blocking stencil on a woven mesh. The dimension of the sensor 2.5×1.0 cm was received. Only 50 µL of sample solution was required on this device for the determination of genistein concentration by square wave voltammetry. The oxidation peak of genistein appeared with good response in acidic media at a potential of 0.6 V. Moreover, the signal was enhanced by mixing modifying material, cobalt(II) phthalocyanine and graphene, into the conductive carbon ink before screen-printing on a plastic substrate. Under optimized conditions, the linear range was found to be 2.5-150 µM and the detection limit was 1.5 µM for cobalt(II) phthalocyanine modified electrochemical sensor. For graphene modified electrochemical sensor, the linear range was found to be 1-200 µM and the detection limit was 1.0 µM. This proposed method was applied to determine genistein in jewel vine (Derris scandens), a Thai herbal medicine with anti-inflammatory activity, with satisfying results.
SEEDEATERS AND SEEDS AT A TECOMA SAVANNA IN THE SOUTHERN PANTANAL, BRAZIL
Authors: Ilha Iêda Maria Novaes , Ragusa-Netto José
Published: November 2023

Seedeaters (Sporophila spp.) comprise a rich Neotropical bird group of seed consumers common in open habitats. In this study, we documented the feeding habits of seedeaters and seed production at a Tecoma savanna (dominated by Tabebuia aurea) in southern Pantanal, Brazil. We also analyzed the relationship between seed offer (abundance, richness, and diversity) and the number of seedeaters foraging across seasons. Six species (Sporophila angolensis, S. caerulescens, S. collaris S. hypoxantha, S.leucoptera, and S. lineola) occurred in the savanna, mainly in the height of the wet season, when seed production increased abruptly, attracting seedeaters. Seedeaters used 14 of 16 grass species that produced seeds. Indeed, the number of foraging seedeaters paralleled the abundance and diversity of seeds, and the number of species consumed. During much of the dry season, when seeds were not produced, the few remaining seedeaters mostly consumed arthropods and flowers. The diet of seedeaters ranged from mostly seeds (S. angolensis) to a moderate proportion of flowers and arthropods (S. leucoptera). The offer of a rich set of seeds attractive to seedeaters indicates that the Tecoma savanna is a seasonally important habitat for these birds. Of concern, large areas of native grasses in the Pantanal have recently been transformed into exotic pastures, and extensive fires have become common. Thus, conservation of this singular area is important for seedeaters, which move over wide areas searching for an abundant and diverse seed supply.
INTERNATIONAL ENTREPRENEURSHIP AS A WAY TO PENETRATION OF MACEDONIAN PRODUCTS ON THE GLOBAL MARKET
Authors: Esmerova Emanuela , Atanasoski Drashko
Published: November 2023

The global markets in which we will initially have to try to penetrate Macedonian products and services are those that, according to the needs of consumers and market conditions, most closely resemble the domestic market. It is also necessary to assess whether applying the same business model of international entrepreneurship would be successful in those markets. We need to gather information about the models that are "winning" in the markets we are thinking about internationally. We need to put the emphasis and check how much our business practices interact with the local ones, and how many interventions we will have to undertake in our own company to successfully fit into the international environment. For the market economy in which international entrepreneurship enters, the concept of free economy is used, which underlines that people are free to become international entrepreneurs and to have and run a business (enterprise). Thus, individuals as international entrepreneurs are free to invest money in their own business, or the business of some other people, and to penetrate products in international markets.
STRATEGIES THROUGHOUT THE DILEMMA: HIGHER EDUCATION INSTITUTION’S INCOME GENERATING PRACTICES AS BASIS FOR EXTERNAL ENVIRONMENT ASSESSMENT
Authors: Español Joshua B. , Español Jade Diane A. , Reginalde Claire R. , Tariga Jonathan N.
Published: November 2023

Income-generating enterprises help to combat issues like poverty, unemployment, and a lack of employment possibilities. State colleges are accustomed with using several income streams to generate income and solve budget gaps. The capacity of SUCs to generate additional sources of funding is increased through their involvement in income-generating projects and businesses. The external environment of Quirino State University's income enterprises is the subject of this study's analysis of various recognized aspects. The study employs a quantitative and qualitative data collection approach and a descriptive-evaluative research methodology. Through comparative external factor analysis and strategic factor analysis, the identified results were quantified and assessed. The study found that major issues, concerns, and constraints had a significant impact on IGE's performance. The majority of these issues originated from production and marketing management because of substandard record-keeping, insufficient infrastructure and facility maintenance, and a dearth of promotional strategies, all of which led to the manifestation of low profit and net loss. The study also suggests that the university adjust and adopt competitive strategies to address identified external environmental factors. Finally, this study made the suggestion that addressing external environmental factors with highly negative impacts be given priority by the IGE's management, together with the implementation of rules and regulations to create precise operational policies.
MEASURING ORGANIZATIONAL LEADERSHIP IN AFRICA
Authors: Michael Banutu-Gomez  , Momodou Mustapha Fanneh  , I. Umaru Tanimu-Saminaka  , Joel Rudin
Published: November 2023

Organizational leadership in Africa is under-studied. Pan-African leadership theories have been proposed but it seems unlikely that the same leadership styles would be equally effective in every African country. For example, South Africa has much lower power distance and much higher individualism than Egypt or Nigeria according to the Hofstede system for classifying national cultures. The differences between South Africa and the other two nations appear vast enough to require different leadership styles. How can we cluster African countries into groups within which the same leadership styles will be effective? Our proposal is to conduct leadership surveys in multiple African countries and to examine the modal response in each country to each question. If the modal response is 4 or 5 on a 5-point scale, the question should be retained. If the modal response is 3, the question should be dropped. If the modal response is 1 or 2, the question should be retained but reverse scored. Countries with similar modal responses may have similar optimal leadership styles. We illustrate how this could be implemented using data from a leadership survey conducted in The Gambia, a small nation in West Africa. We conclude with implications for research and practice.
Persepsi Masyarakat Tentang Sungai di Indonesia
Authors: Muhammad Ubaidillah
Published: November 2023

Beberapa tahun terakhir, lingkungan sekitar manusia mengalami kerusakan cukup parah. Kerusakan lingkungan akibat eksploitasi sumber daya menjadi permasalahan bagi masyarakat secara umum dan ekosistem di masa selanjutnya. Manusia terhadap air merupakan sumber kehidupan yang sangat penting. Sehingga adanya sumber air harus dilestarikan dengan baik secara kuantitas maupun kualitas. Penelitian ini dilakukan untuk mengetahui persepsi masyarakat tentang sungai di Indonesia. Metode penelitian ini menggunakan mixed method dengan teknik pengumpulan data melalui kuisioner, obeservasi dan wawancara. Hasil penelitian ini menunjukkan bahwa pengelolaan sungai di Indonesia masih rendah yang mengakibatkan tercemarnya lingkungan sungai. Masyarakat, Pemerintah, dan Produsen memiliki peranan penting dalam kelestarian lingkungan sungai.
Field investigation of clogging with different sediment types in a permeable pavement system with low-cost maintenance
Authors: Lamberti Lucas , Piccilli Daniel Gustavo Allasia , Minetto Bruna , Perius Carla Fernanda , Tassi Rutineia
Published: November 2023

Maintenance has a significant impact on permeable pavements’ service life. Proper cleaning procedures include pressure washing and heavy-duty wet/dry vacuum to remove accumulated sediment and maintain permeability. Aiming to analyze the influence of sediment type and size on the clogging process and the importance of preventive maintenance, six experimental permeable pavement modules were assessed. Pairs of in-situ Pervious Concrete (PC), Permeable Interlocking Concrete Pavement (PICP) and Permeable Interlocking Pervious Concrete Pavement (PIPCP) were monitored over two consecutive periods: i) under natural clogging process; ii) accelerated clogging under sand and clay sediment types. At the end of both periods, all modules received maintenance through water pressure washing. The results showed a reduction of up to 80% in the surface infiltration capacity during the natural clogging period, but that most of it could be recovered using pressure washing. Result in all situations also reinforced that periodic cleaning every 4-6 months, even with just pressure washing, as a key factor to extend permeable pavements’ life cycle.
Hygroelectricity through the use of waste supported iron particles
Authors: Kremer Ingridi , Vieira Maria Cecilia Caldeira , Neres Matheus Amancio Correa , Rosa Eloisa da , Boita Jocenir , Quadros Glauber Rodrigues de , Maldaner Silvana , Fabris Lucinéia
Published: November 2023

In recent years, due to the increase in the consumption of electric energy worldwide, the generation of sustainable energy has become the focus of several scientific investigations. In this scenario, this project will propose a new technology for energy generation, based on the use of residue of Agate Stone Powder. It is worth noting that, currently, there is still no regulation for the disposal of these materials, occurring most of the time inadequately. Besides this, an iron-based particle will also be used, in order to build a cement artifact that works as an energy generator. It is expected that, at the end of the project, the developed prototype will be able to generate electrical energy in a satisfactory manner. The built prototype will have to be tested in a state of super humidity, that is, totally submerged in water, in order to evaluate its quality and efficiency. The final material confectioned, because it is a material capable of generating energy through humidity, receives the name of hygrogenerator and awakens great future possibilities for the development of new technologies, besides contributing to the sustainability of the environment.
Validação de protocolo de fluxo para o cuidado às crianças com necessidades especiais de saúde
Authors: Uberti Camila , Castro Eduarda da Silveira , Tres Diana Augusta , Adamy Edlamar Kátia , Toso Beatriz Rosana Gonçalves de Oliveira , Zanatta Elisangela Argenta
Published: November 2023

Objetivo: validar um protocolo de fluxo para o cuidado e acompanhamento de Crianças com Necessidades Especiais de Saúde na Atenção Domiciliar. Método: pesquisa metodológica de validação. A coleta de dados foi online, em 2021, via Google Forms. Participaram sete profissionais que atuam nos Serviços de Atenção Domiciliar. Os dados foram analisados pela estatística descritiva com distribuição de frequência e percentual. Resultados: protocolo foi validado com Índice de Validade de Conteúdo de 0,87 (considerado adequado); Alfa de Cronbach 0,91 (concordância muito alta) e Kappa: 0.0281 (próximo de zero indica concordância ao acaso). As sugestões dos juízes foram em relação à estrutura gráfica. Assim, o protocolo foi reorganizado visando acatar as sugestões e facilitar a interpretação visual. Conclusão: o protocolo validado poderá ser utilizado para organizar o processo de trabalho e padronizar os cuidados às Crianças com Necessidades Especiais de Saúde na Atenção Domiciliar.
Melhores práticas no cuidado às pessoas que vivem com HIV em diferentes modelos de cuidado
Authors: Metelski Fernanda Karla , Celuppi Ianka Cristina , Meirelles Betina Hörner Schlindwein , Coelho Bruna , Silva Marcelle Miranda da , Abreu Wilson Jorge Correia Pinto de
Published: November 2023

Objetivo: compreender os significados atribuídos às melhores práticas do cuidado às pessoas que vivem com HIV em dois diferentes modelos de cuidado em municípios prioritários do sul do Brasil. Método: Teoria Fundamentada nos Dados Construtivista, com 52 entrevistas em profundidade aplicadas em 2020 e 2021, para profissionais da atenção primária, especializada, gestores e pessoas que vivem com HIV. Resultados: o fenômeno “Significando as melhores práticas como gradativas e consistentes em diferentes municípios prioritários”, permite compreender que no cuidado centralizado são desenvolvidas ações de prevenção e promoção da saúde, aconselhamento, diagnóstico precoce e encaminhamento, e no modelo descentralizado destaca-se a ampliação da clínica do enfermeiro e do médico de família no manejo da infecção, vinculação, longitudinalidade e integralidade. Conclusão: as melhores práticas em modelos distintos de cuidado requerem uma sucessão de diferentes momentos, que respeitem as falas dos profissionais e das pessoas que vivem com HIV.
FACTORS THAT AFFECT PEOPLE'S PARTICIPATION IN TABLE TENNIS
Authors: Shibin Li , Buang Nor Aishah
Published: November 2023

The term "core co-curricular" refers to extracurricular activities or electives that students may enroll in as extra classes for their academic work. Currently, there is no study on the factors that influence student involvement in extracurricular activities, especially table tennis at the higher education level. Student participation in extracurricular activities is influenced by various factors. therefore, the purpose of this study is to identify the factors that influence the involvement of Chinese students in a university in table tennis activities as their co-curriculum. 101 respondents from Chinese universities were randomly selected. Data was collected using a questionnaire that was part of a research tool that underwent reliability testing and expert validation procedures. The overall findings of the study show that several factors, such as practicality, interest, and academic concern, have a significant impact on student involvement in table tennis extracurricular activities. Through regression analysis, the cause is identified. Teachers have a big impact on how often students play table tennis outside of school. Because of this, academic staff should use more effort and influence to ensure that students are actively involved in the university's co-curricular table tennis curriculum.
EXPERIMENTAL STUDY OF MUSIC THERAPY USING PIANO AND CHORUS TEACHING METHOD TO IMPROVE LANGUAGE ABILITY AND SOCIAL BARRIERS OF CHILDREN WITH AUTISM SPECTRUM DISORDERS
Authors: Jia Wang , Hussin Hanipah
Published: November 2023

Autism in children is an abnormality of pervasive developmental disorder caused by biological factors, mainly manifested by social disorders, language disorders, and behavioural problems. After years of music therapy research and practical teaching, the author found that piano performance and choral singing can help autistic children improve their language skills and social disorders. This paper uses quantitative research methods. Data sampling and experimental investigation were conducted on 256 teachers at Chengdu Autism Institution who used piano and choral pedagogy in music therapy to improve language ability and treat social disorders in children. By using SPSS and through the comparative analysis of data before and after the experiment, study the intervention effect of using piano and choral pedagogy in music therapy for children with autism on improving language ability and treating social disorders in children with autism. This study found that using this method greatly affects the improvement of language ability and social impairment in children with autism.
Coordinación catastro-registro. Nuevas herramientas gráficas
Authors: Martín Ortega Elisa , Martos Rodríguez Juan Francisco , Ojeda Manrique Juan Carlos
Published: November 2023

La Ley Hipotecaria y el texto refundido de la Ley del Catastro Inmobiliario, tras su reforma por la Ley 13/2015, de 24 de junio, estableció un sistema de coordinación entre el Catastro Inmobiliario y el Registro de la Propiedad, para que éste incorpore la descripción gráfica georreferenciada de las fincas registrales, utilizando como base la cartografía catastral. Con ello se persigue dar mayor seguridad a los datos de ubicación, delimitación y superficie de las fincas registrales que son objeto del tráfico jurídico. Desde entonces han sido muchos los avances en relación con los protocolos de comunicación y el intercambio de información gráfica, donde se ha publicado durante el año 2020 una nueva resolución conjunta con registradores y otra en 2021 con notarios. Como consecuencia de estos últimos cambios normativos, se han desarrollado nuevas aplicaciones entre los actores participantes que fortalecen los principios, requisitos y objetivos que persigue la citada Ley. El desarrollo de estas herramientas se fundamenta en ofrecer instrumentos sencillos y accesibles para todos los actores principales, al usuario en general, técnicos y fedatarios públicos (registradores y notarios) con el objeto de generar un entorno donde se comparta la misma información, se empleé un vocabulario común y se intercambie documentación estandariza que facilite el trámite jurídico y la comunicación operativa entre los distintos actores.
Mutatis Mutandis #3: “Well, but Thursday…”
Authors: Priego Ernesto
Published: November 2023

I couldn’t post last Thursday, but here’s a belated Mutatis Mutandis #3…
A #comicsunconf15 Twitter Activity Summary and Archive
Authors: Priego Ernesto
Published: November 2023

The Scottish Comics Unconference Meet-Up was a success. Find out how many #comicsunconf15 Tweets there were and how many of us tweeted using the hashtag.
Ni siquiera la muerte
Authors: Priego Ernesto
Published: November 2023

Ni siquiera la muerte se desahce de este polvo.
A #citylis 2014-2015 Term 1 Twitter Archive
Authors: Priego Ernesto
Published: November 2023

The taught component of Term 1 of the 2014-2015 year is over at #citylis. Throughout the term I archived the Tweets tagged with #citylis and I have now uploaded to figshare a spreadsheet containing 4940 Tweets.
At the LSE Impact of Social Sciences Blog: Publicly available data from Twitter does not constitute an “ethical dilemma”.
Authors: Priego Ernesto
Published: November 2023

The Impact Blog of the London School of Economics and Political Science has published today my post from yesterday (“Twitter as Public Evidence and the Ethics of Twitter Research”) under the title Publicly available data from Twitter is public evidence and does not constitute an “ethical dilemma”.
Reevaluating POSI: 2023 evolution
Authors:   Liberate Science
Published: November 2023

In 2022, we did our first self-evaluation according to the Principles of Open Scholarly Infrastructure (POSI). In this blog, we take stock ~1 year later, based on POSI v1.1, and reevaluate how we're doing and where there's still room for improvement. Summary 💚 = aligned; 💛 = less aligned;
Factores determinantes de la vulneración de los procedimientos administrativos disciplinarios del Hospital Nacional Dos de Mayo – 2017
Authors:   , Mezones Abad Danny , Trinidad Gonzalo Sofia
Published: November 2023

El tema de investigación que se plantea en la tesis tiene como sustento la siguiente interrogante: ¿Cuáles son “los factores determinantes” de la vulneración de “los procedimientos administrativos disciplinarios” del “Hospital Nacional Dos de Mayo” – 2017?, para tal solución se tuvo que explicar “los factores determinantes” de la vulneración de “los procedimientos administrativos disciplinarios” del “Hospital Nacional Dos de Mayo” – 2017; asimismo se tuvo que explicar “el procedimiento administrativo disciplinario” vigente en nuestra legislación y analizar los factores de vulneración en sentido xiii exacto tácito en la “Ley de Servicio Civil”. Se plantea la siguiente hipótesis: “Si existen factores determinantes que vulneran los procedimientos administrativos disciplinarios del Hospital Nacional Dos de Mayo – 2017”, trasgrediendo el desarrolla de los procedimientos, lo que incide en un incorrecto desarrollo de los procedimientos administrativos disciplinarios. Para demostrar la hipótesis, se hizo uso “la investigación descriptiva y analítica”, ya que se obtiene desde una “premisa particular” un resultado general, tuvo “un diseño de investigación básica de casos” constituidos por “172 expedientes administrativos disciplinarios” que tienen el objetivo de enunciar los diversos “factores” que afectan el desarrollo de “los procedimientos disciplinarios administrativos en el Hospital Nacional Dos de Mayo”, se discuten los resultados de que si existen “Factores determinantes” que vulneran “los procedimientos administrativos disciplinarios”. Finalmente, se llegó a concluir que “la Tipificación errónea de la falta”, la Inaplicación del “principio de razonabilidad”, la Inaplicación del “principio de razonabilidad” y el Incumplimiento de “estándares de notificación” son “factores determinantes” de vulneración de “los procedimientos Administrativos Disciplinarios”.