bluuebunny/crossref_metadata_2025 huggingface dataset:
Decarboxylative Bromooxidation of Indoles by a Vanadium Haloperoxidase
Authors: Wells Clare E. , Ramos Lauren P.T. , Harstad Lauren J. , Hessefort Logan Z. , Lee Hyung Ji , Sharma Manik , Biegasiewicz Kyle F.
Published: November 2022

Halooxindoles are versatile building blocks for the construction of complex oxindole-containing targets of biological importance. Despite their synthetic value, catalytic methods to synthesize 3-halooxindoles from readily available starting materials has remained undisclosed. We recently discovered that the chloroperoxidase from Curvularia inaequalis (CiVCPO) is a viable catalyst for the decarboxylative bromooxidation of 3-carboxyindoles to furnish 3-bromooxindoles with excellent regio- and chemoselectivity. In addition to the development of the synthetic method, this study provides evidence of a bromide recycling mechanism for the indole oxidation event. A discussion of the reaction development, substrate scope, mechanistic insights, and reaction applicability will be discussed herein.
Self-Promoted H2 Formation for Photoinduced Removal of CO to ≤1 ppm in H2 Stream
Authors: Liu Haifeng , Wei Xuhui , Fang Yao , Chen Jiazang
Published: November 2022

Photoinduced radical reaction operated at low temperature can be used to remove trace CO in H2 stream by minimizing reverse water-gas-shift. However, H2 consumption resulted from nonselective oxidation by hydroxyl radicals becomes an obstacle to the practical hydrogen stream purification. Inspired by the hydrogen exchange transfer, we demonstrate here that the molecular hydrogen can promote H2 formation from the hydrogen radicals, which generated from the oxidation reaction of CO and H2 with hydroxyl radicals. The slight increment in H2 along with the radical reaction encourages us to configure photocatalytic hydrogen purification fixed bed reactor, which can reduce the CO concentration to ≤1 ppm in the H2 stream.
Self-Spinning Filaments for Autonomously Linked Microfibers
Authors: Barber Dylan , Emrick Todd , Grason Gregory , Crosby Alfred
Published: November 2022

Filamentous bundles are ubiquitous in Nature, achieving highly adaptive functions and structural integrity from assembly of diverse mesoscale supramolecular elements. Engineering routes to synthetic, topologically integrated analogs demands precisely coordinated control of multiple filaments’ shapes and positions, a major challenge when performed without complex machinery or labor-intensive processing. Here, we demonstrate a photocreasing design that encodes local curvature and twist into mesoscale polymer filaments, enabling their programmed transformation into target 3-dimensional geometries. Importantly, patterned photocreasing of filament arrays drives autonomous spinning to form linked filament bundles that are highly entangled and structurally robust. In individual filaments, photocreases unlock paths to arbitrary, 3-dimensional curves in space. Collectively, photocrease-mediated bundling establishes a transformative paradigm enabling smart, self-assembled mesostructures that mimic performance-differentiating structures in Nature (e.g., tendon and muscle fiber) and the macro-engineered world (e.g., rope).
The effect of organic ions on the formation and collapse of nanometric bubbles in ionic liquid/water solutions: A molecular dynamics study
Authors: Cabriolu Raffaela , Pollet Bruno G. , Ballone Pietro
Published: November 2022

Molecular dynamics simulation is applied to investigate the effect of two ionic liquids (IL) on the nucleation and growth of (nano-)cavities in water under tension and on the cavities’ collapse following the release of tension. Simulations of the same phenomena in two pure water samples of different sizes are carried out for comparison. The first IL, i.e., tetra-ethyl ammonium mesylate ([Tea][Ms]), is relatively hydrophilic and its addition to water at 25 wt% concentration decreases its tendency to nucleate cavities. Apart from quantitative details, cavity formation and collapse are similar to those taking place in water, and qualitatively follow the Rayleigh-Plesset (RP) equation. The second IL, i.e., tetrabutyl phosphonium 2,4-dimethylbenzene sulfonate ([P4444 ][DMBS]), is amphiphilic, and forms nanostructured solutions with water. At 25 wt% concentrations, [P4444 ][DMBS] favours the nucleation of bubbles, that tend to form at the interface between water-rich and IL-rich domains. Cavity collapse in [P4444 ][DMBS]/water solutions are greatly hindered by a shell of ions decorating the interface between the solution and the vapour phase. A similar effect is observed for the equilibration of a population of bubbles of different sizes. The drastic slowing down of bubbles’ relaxation processes suggests ways to produce long-lived nanometric cavities in the liquid phase that could be useful for nanotechnology and drug delivery.
Detection of SARS-CoV 2 receptor binding domain using fluorescence probe and DNA flowers enabled by rolling circle amplification
Authors: Zhang Man , Ye Lei
Published: November 2022

Using rolling circle amplification (RCA) and two different ways of signal readout, we developed analytical methods to detect the receptor binding domain (RBD) of SARS-CoV 2 spike protein (S protein). We modified streptavidin-coated magnetic beads with an aptamer of RBD through a biotin-tagged complementary DNA strand (biotin-cDNA). Binding of RBD caused the aptamer to dissociate from the biotin-cDNA, making the cDNA available to initiate RCA on the magnetic beads. Detection of RBD was achieved using a dual signal output. For fluorescence signaling, the RCA products were mixed with a dsDNA probe labelled with fluorophore and quencher. Hybridization of the RCA products caused the dsDNA to separate to emit fluorescence. To generate easily detectable UV-vis absorbance signal, the RCA amplification was extended to produce DNA flower to encapsulate horseradish peroxidase (HRP). The HRP-encapsulated DNA flower catalyzed a colorimetric reaction between H2O2 and 3,3′,5,5′-tetramethylbenzidine (TMB) to generate an optical signal. The fluorescence and colorimetric assays for RBD have low detection limits (0.11 pg/mL and 0.904 pg/mL) and a wide linear range (0.001-100 ng/mL). For detection of RBD in human saliva, the recovery was 93.0-100% for the fluorescence assay and 87.2-107% for the colorimetric assay. By combining fluorescence and colorimetric detection with RCA, detection of the target RBD in human saliva was achieved with high sensitivity and selectivity.
Structural and mechanical properties of CrN thin films deposited on Si substrate by using magnetron techniques
Authors: Tranca Denis E. , Sobetkii Arcadie , Hristu Radu , Anton Stefan , Vasile Eugeniu , Stanciu Stefan G. , Banica Cosmin K. , Fiorentis Efstathios , Constantinescu David , Stanciu George A.
Published: November 2022

Chromium Nitride thin films are known for their good mechanical properties. We present the characteristics of ultrathin Chromium Nitride films under 400 nm thickness deposited on silicon substrates by direct current and high-power impulse magnetron sputtering techniques. The methods of investigation of the CrN films were scanning electron microscopy, atomic force microscopy, and nanoindentation. Qualitative and quantitative analysis were performed using the AFM and SEM images by fractal dimension, surface roughness and gray-level co-occurrence matrix methods. Our results show that using the mag-netron techniques, ultrathin CrN films with excellent mechanical properties can be obtained.
How should we present the epidemic curve for COVID-19?
Authors: Soucy Jean-Paul R. , Buchan Sarah A. , Brown Kevin A.
Published: November 2022

Epidemic curves are used by decision makers and the public to infer the trajectory of the COVID-19 pandemic and to understand the appropriateness of response measures. Symptom onset date is commonly used to date incident cases on the epidemic curve in public health reports and dashboards; however, third-party trackers date cases by the date they were publicly reported by the public health authority. These two curves create very different impressions of epidemic progression. On April 1, 2020, the epidemic curve based on public reporting date for Ontario, Canada showed an accelerating epidemic, whereas the curve based on a proxy variable for symptom onset date showed a rapidly declining epidemic. This illusory downward trend is a feature of epidemic curves anchored using date variables earlier in time than the date a case was publicly reported, such as the symptom onset date. Delays between the onset of symptoms and the detection of a case by the public health authority mean that recent days will always have incomplete case data, creating a downward bias. Public reporting date is not subject to this bias and can be used to visualize real-time epidemic curves meant to inform the public and decision makers.
Global Agreements and the Decay of Tax Treaty Law
Authors: Brauner Yariv
Published: November 2022

It is a tremendous privilege to be able to contribute to this volume in honour of Professor Rainer Prokisch. No one knows tax treaties better than Rainer, so I had to pause before offering this commentary on the state of these treaties at the closing of 2021. Some have celebrated a so-called global agreement during 2021, when 136 countries comprising most of the Inclusive Framework signed a statement dictated by the G7 and the OECD, a statement which purportedly included the building blocks for a new international tax regime. The statement adopted the two Pillar framework promoted by the OECD, which offers new taxing rights to market (source) countries over foreign taxpayers even in the absence of physical presence and a global minimum tax to residence countries. The agreement concludes the post-BEPS work by the OECD, which prior to the very last version of the two pillars program (the abovementioned statement) focused on finding a solution to the challenges that the rise of the digital economy had presented to the international tax regime. The statement shifted the discourse completely, refocusing the project to taxing the largest multinational enterprises more aggressively.
Influence of production specialisation level on efficiency of technical service and safety of buses operation
Authors: Denisov A. S. , Feklin E. V. , Ignatov A. V.
Published: November 2022

Introduction. The focus is on improving the maintenance and repair system of city buses on the scale of large cities in particular and regions in general. Due to the increase in the number of rolling stock, the load on the existing technical service organisations increases, which in turn leads to their overload. Consequently, the efficiency and safety indicators of bus operation are reduced. The proposed solution is to develop a system of centralised specialised production.Materials and methods. The system of maintenance and repair is considered from the point of view of the marginal utility theory. Dependences of total and marginal utility on the quantity of goods (services) are presented. The term ‘specialization’ is described from the point of view of the motor transport industry. The necessity of combining universal and specialised posts is justified.Results. The results of the experimental study on ten passenger enterprises are presented. The results of calculations of the efficiency indicators of the current repair area are given. The dependence of annual costs and profit of the current repair zone of ten posts on the level of specialisation is reflected. The dependence of the coefficient of technical readiness of buses on the scale of parks in Russia is analysed. The natural factors, influencing the coefficient of technical readiness are presented. An adequate mathematical model with physical variables of the dependence of the coefficient of technical availability on the scale of the enterprise and the level of specialisation was obtained with further processing and verification of the results.Discussion and conclusions. The results of the study are intended for the enterprises of passenger transport. The data obtained will allow to develop a system of cooperation of technical service production facilities in order to improve the performance of requests for maintenance and repair of rolling stock.
Students’ Literacy Skills and Quality of Textbooks in Indonesian Elementary Schools
Authors: Anwas E. Oos M. , Afriansyah Anggi , Iftitah Khofifa Najma , Firdaus Winci , Sugiarti Yuni , Supandi Evi , Hediana Deni
Published: November 2022

Purpose of the study:  to find out: 1) basic literacy skills (ability to read, write and count) elementary school early grades students; (2) quality of textbooks in aspects of content, presentation, language, and graphic design; and (3) The significance of the relationship between the quality of textbooks and students' basic literacy skills.Methodology: This research uses a quantitative approach with a survey method. It was conducted in eight provinces in Indonesia. The sampling technique used stratified random sampling, 805 teachers. Data collection used a questionnaire for elementary school teachers who teach in low grades. The data analysis used descriptive statistics and correlation analysis.Main Findings: It was found that there are still relatively many early grades elementary school students who are not fluent in reading, writing, and arithmetic. These students' basic literacy skills have a significant and positive relationship with the quality of textbooks in the aspects of substance, presentation, language, and graphic design.Applications of this study: To improve basic literacy skills (reading, writing, and arithmetic) in early grades elementary school students, it is also necessary to improve the quality of textbooks in the aspects of substance/Content, presentation, language, and graphic design.Novelty/Originality of this study: It was found that there is a significant and positive relationship between basic literacy skills (reading, writing, and arithmetic) of early grades elementary school students and the quality of the textbooks they used both in terms of substance/Content, presentation, language, and graphic design.
CLOUD TECHNOLOGIES IN LEARNING: ONTOLOGICAL APPROACH
Authors: Tkachenko Olha , Tkachenko Kostiantyn , Tkachenko Oleksandr
Published: November 2022

The article considers an ontological approach to the creation and use of learning information systems and learning process management systems that operate in a cloud environment. The proposed ontological approach provides an opportunity to implement learning processes, supporting the sharing of both users (students, teachers, methodologists, etc.) and different training courses of common learning content stored in the cloud. The result of using cloud technologies and ontologies is the ability to make the necessary adjustments to the set of goals and objectives of the learning process, the learning process, the course, the requirements for the level of knowledge and competence of students. An ontological approach to building learning systems operating in a cloud environment is proposed. It is advisable to use the developed ontological model when implementing learning system in managing learning processes in higher educational institutions. The constructed ontological model provides an opportunity to implement continuous improvement of learning processes, supporting the sharing by both users (students, teachers, methodologists, etc.) and different training courses of common training content stored in the cloud. The result of using cloud technologies and ontologies is the possibility of making the necessary adjustments to the set of goals and objectives of the learning process, to the learning process, the training course, to the requirements for the level and competencies of trainees on the part of employers and / or the state. The developed ontological model of learning processes allows, using cloud technologies, to form a space of learning content. Sharing learning content across learning systems has not only enabled the use of ready-made, high-quality learning materials developed by the best teachers, but also reduced the time and resources spent on transferring content from one system to another. The proposed approach uses the integration of technologies such as: ontological modeling, intellectualization and informatization, as well as cloud technologies. The use of these technologies makes it possible to predict the occurrence of emergency situations in the learning process.
MODERN APPROACHES TO PROVIDING CYBER SECURITY IN RADIO RELAY COMMUNICATION LINES
Authors: Oleksenko Vitalii , Shtonda Roman , Chernish Yuliya , Maltseva Irina
Published: November 2022

This article examines the impact of the AcidRain malware, which was used against Ukraine during the Russian invasion. Therefore, after the disruption of the Viasat satellite Internet service, a large share of data transmission fell on other types of communication, one of which is radio relay communication. Today, radio relay communication remains one of the priority types of communication. The main conditions that determine the development of radio relay communication and the preservation of its rather high specific weight in the market for the provision of telecommunication services can be conventionally divided into organizational, technical and technological ones. In order to ensure the development of radio relay communication and to preserve its rather high specific weight in the market for the provision of telecommunication services, it is necessary to pay attention to cyber security during the construction of radio relay communication lines. To do this, each official at the appropriate level must pay attention to these points of control to ensure reliable cyber protection in radio relay communication lines, namely, have the appropriate theoretical knowledge of administrators and users in information and communication systems, communication networks, as well as properly act in practice under time to ensure cyber security when deploying radio relay communication lines. Russia's cyberattacks before the invasion of Ukraine proved that cyberattacks today play an important and strategic role in the modern world and are being waged, regardless of whether the electorate knows about it. This threat to us was and is constant and it does not stand still, but only develops. Cyberattacks cause devastating problems to our information and communication systems, communication networks and infrastructure with paradoxical, sometimes deplorable consequences. The reliable operation of radio relay communication lines depends on ensuring cyber security. You should focus on this, and at the same time make maximum efforts. Every day, technological progress will only grow more and more, paradoxically, war is the "engine of progress", and behind the growth of technical progress will be the growth of dependence in cyberspace.
OPTIMIZATION OF PLACEMENT OF INFORMATION PROTECTION MEANS BASED ON THE APPLICATION OF A GENETIC ALGORITHM
Authors: Lakhno Valerii , Maliukov Volodimir , Komarova Larysa , Kasatkin Dmytro , Osypova Tetiana , Chasnovskyi Yehor
Published: November 2022

the article considers the possibilities of modifying the genetic algorithm (GA) for solving the problem of selecting and optimizing the configurations of information protection means (IPR) for security circuits of information and communication systems (ICS). The scientific novelty of the work lies in the fact that in GA, as criteria for optimizing the composition of IPR, it is proposed to use the total value of risks from loss of information, as well as the integral indicator of IPR and cost indicators for each class of IPR. The genetic algorithm in the task of optimizing the selection of the composition of the IPR for ICS is considered as a variation of the problem associated with multiple selection. In such a statement, the optimization of the placement of IPR along the contours of ICS protection is considered as a modification of the combinatorial problem about the backpack. The GA used in the computing core of the decision support system (DSS) differs from the standard GA. As part of the GA modification, chromosomes are presented in the form of matrices, the elements of which are numbers that correspond to the numbers of the IPR in the ICS nodes. In the process of GA modification, k-point crossover was applied. The fitness function is represented as the sum of efficiency coefficients. At the same time, in addition to the traditional absolute indicators of the effectiveness of IPR, the total value of risks from loss of information, as well as cost indicators for each class of IPR are taken into account. The practical value of the research lies in the implementation of the DSS based on the proposed modification of the GA. Computational experiments on the selection of a rational software algorithm for the implementation of the model were performed. It is shown that the implementation of GA in DSS allows to speed up the search for optimal options for the placement of cyber security means (CS) for ICS by more than 25 times. This advantage allows not only to perform a quick review of various options of hardware and software IPR and their combinations for ICS, but also to further combine the proposed algorithm with existing models and algorithms for optimizing the composition of ICS cyber security circuits. Potentially, such a combination of models and algorithms will provide an opportunity to quickly rebuild ICS protection, adjusting its profiles in accordance with new threats and classes of cyberattacks.
Elma posasından biyohidrojen üretimine farklı yükleme oranlarının etkisi
Authors: MURATÇOBANOĞLU Hamdi , GÖKÇEK Öznur Begüm , BAŞ Furkan , DEMİREL Sevgi
Published: November 2022

Küresel çevre problemleri ve modern dünyanın artan enerji talebi alternatif ve yenilenebilir enerji kaynakları arayışını ortaya çıkarmıştır. Alternatif enerji kaynaklarının başında ise yüksek enerji içeriğine sahip olması, enerji taşıyıcısı olması ve çevre dostu olması gibi avantajları nedeniyle hidrojen gelmektedir. Hidrojen üretim prosesleri; elektrokimyasal yöntemler, termal yöntemler ve biyolojik hidrojen üretimi olarak sıralanabilir. Bu yöntemler arasında daha ekonomik ve sürdürülebilir olması nedeniyle biyolojik yöntemler ön plana çıkmaktadır. Bu çalışmada, biyolojik bir proses olan karanlık fermantasyon yöntemi ile elma posasından biyohidrojen üretimi incelenmiştir. Elma posası kullanılarak, aşı çamuruna uygulanan fiziksel ön işlem (90°C- 30 dk) sonrası farklı substrat/aşı (S/I) yükleme oranlarında kesikli reaktörlerden elde edilen biyohidrojen verimleri karşılaştırılmıştır. En iyi performansı gösteren S/I 2 yükleme koşullarında 208 ml/gUK biyogaz ve 18 mlH2/gUK biyohidrojen üretimi gerçekleşmiştir. Mikrobiyal dağılım sonuçları incelendiğinde Lactobacillus, Clostridium ve Lachnospiraceae türlerinin en baskın türler olduğu görülmektedir.
Usage of GIS-based Nominal Valuation Method in Creating Value Maps: The Case of Foça/İzmir
Authors: KAYALIK Mert , POLAT Zeynel Abidin
Published: November 2022

According to TUIK data, the number of residential sales in İzmir in 2021 is 86,722. This count corresponds to 5.8% of all residential sales in Turkey. With this ratio, İzmir became the third province in Turkey with the highest sales of residential. When all these statistics are taken into account, it is quite laborious and time-consuming to determine the value of real estates in İzmir using singular valuation methods. The mass real estate valuation method, which was suggested as a solution to this, was applied in the Yenifoça neighborhood of İzmir. In the study, nominal valuation method, which is one of the stochastic methods that accelerates the valuation, was used. The nominal value map of the building footprints created at the end of the application was converted into prices in TL with the help of a model. In the model, the total pixel values and the sales prices on the web-based site of the real estates were used. The real estates for sale on the site were divided into two groups as training and test data. It has been determined that the model prices of 11 test data have a 0.67 correlation with the prices on the website. The mentioned model ran with a very high accuracy coefficient, although it was tested with a limited data set. As a result, the applicability of the nominal valuation method has been revealed and an important academic resource has been brought to the literature for future mass real estate valuation studies.
Adversity to advantage : How the NATO MILMED COE used the period of the COVID-19 pandemic for capability building
Authors: Tóth Máté , Biró Csenge
Published: November 2022

The COVID-19 pandemic has le" its mark on just about every aspect of life and had a major impact on the NATO Centre of Excellence for Military Medicine (NATO MILMED COE) as well. New, unprecedented challenges have emerged in the life of the organization, which has not only overcome but has even come up with novel capabilities that have enabled the COE to actively help fight the pandemic.
OPTIMIZATION THE PERFOMANCE OF PHOTOVOLTAIC PANELS FOR CITRONELLA OIL DISTILLATION
Authors: Safitri Nelly , Suprihardi  , Ridwan  , Rihayat Teuku , Aidy Nurhanifa , Setiawati Een
Published: November 2022

Photovoltaic system is a module that is used to absorb heat that is exposed to sunlight which is converted into electrical energy. The purpose of this research is to use a solar panel with a capacity of 100 wp to absorb heat which is converted into electrical energy as much as 100 watts/hour which is later expected to be a substitute for conventional electricity which will be used for the refining process. The treatment was carried out by varying the drying time of citronella leaves 0, 1, 2 and 3 days and the time for citronella oil distillation operation for 1.5, 3, 4.5 and 6 hours. By using a solar cell that has a capacity of 100 wp for 6 hours a day when exposed to sunlight it can produce power of 600 watts / day. Testing of distilled citronella oil using the photovoltaic method, the best density was obtained at a distillation time of 1.5 hours with a drying time of 1 day of 0.8889 kg/cm3. Refractive index testing, drying time of 1 day with a distillation time of 1.5 hours the value obtained is 1.4655. The more the chain components with the oxygen group are also distilled, the density of the oil will increase so that the incoming light is more difficult to refract. The yield of lemongrass oil at a drying time of 3 days with a distillation time of 6 hours the value obtained was 2.30%. Drying and withering the amount of material that can be distilled per distillation increases, so that the refining of the material in a dry state is more efficient. The best distillation time is 6 hours, this occurs due to the longer a material receives heat, the more evenly distributed the diffusion process causes the distillation process to be more efficient and greatly affects the yield and oil yield.
ASSESSMENT AND IDENTIFICATION OF POLYOL BASED ON PALM OIL AND NATURAL FILLING MATERIALS FOR RENEWABLE COATING PAINT APPLICATION
Authors: Rihayat Teuku , Syafruddin  , Ismy Adi Saputra , Aidy Nurhanifa , Izza Nurul
Published: November 2022

Chitosan/clay hybrid nanoparticles have been prepared as natural antibacterial and anticorrosion agents to enhance the protective function of polyurethane-based coating paints. Chitosan is a material with antibacterial properties because it contains acetamide group which is widely used for hygiene purposes in the medical field. Clay is a natural clay particle with a hollow structure that allows loading and release of active substances such as surfactant ions that can contribute to improving the properties of the material. The polyurethane in this study was obtained from palm oil oleic acid, which was processed into polyol, toluene diisocyanate was added to produce polyurethane. Coating paint is efficiently loaded with chitosan and clay active substances which are combined to form a hybrid composite. Based on the FTIR data of polyurethane showing the formation of a hydroxyl group on the palm oil epoxide compound, the reaction lasted for 2 hours at 60oC as evidenced by the absorption of the OH wave number which widened at 3305.99 cm-1. The value of the wavelength of the OH group in the bentonite sample before and after purification has decreased, proving that the intercalation of surfactants into the bentonite interlayer causes the hydrophilic nature of bentonite to change to hydrophobicity. The d-spacing layer of raw bentonite has a maximum reflection angle peak of 7.26o with a d-spacing value of 1.132 nm, and the d-spacing size increases to 1.631 nm at the peak of the maximum reflection angle of 4.49o after purification. The presence of absorption at 1064.71 cm-1 in shrimp shell chitosan indicates COC vibration.
COMPATIBILIZATION STUDY OF BLENDING POLYMERS PLA-PCL WITH FILLERS CATECHIN-CHITOSAN AS NEW MATERIALS FOR BIOPLASTIC MANUFACTURE
Authors: Salim Suryani , Rihayat Teuku , Fitria  , Safitri Aida
Published: November 2022

The use of agents in the form of nanochitosan to develop active bioplastics offers a new way to modify the transport properties and release of active compounds while increasing the mechanical resistance and compatibility between polymers. This study aims to study the effect of mixing two polymers in the form of polylactic acid (PLA) and polycaprolactone (PCL) as a matrix and 10% (w/v) filler. The matrix for bioplastic film-forming was prepared by mixing 8 g PLA and 2 g PCL. The internal film and surface microstructures were characterized by scanning electron microscopy (SEM) and interactions between the particles using FT-IR. Mechanical physical properties were reviewed using ASTM D638. The results show that amount of filler composition promotes a significant change in the microstructure of the film and is associated with to improve properties. The amount of nanochitosan (0.9 g) and catechin (0.1) was homogeneously distributed. As a consequence. However, when the filler composition is varied in other quantities, the tensile strength will fluctuate.
LDPE DEGRADING ABILITY OF RIEMERELLA STRAIN ISOLATED FROM THE GARBAGE DUMPING SITES OF VISAKHAPATNAM, INDIA
Authors: Bandi Sai Spandana , Veluru Sridevi , Mallisetty Rishi , Talib Hamzah Husam , Rao Poiba Venkata , R. Srikanth
Published: November 2022

Polyethylene is found to accumulate in the environment, posing a major ecological threat. Affordable and environmentally friendly treatments are need of the hour to combat this plastic pollution. A study was made to isolate microorganisms from a sample of garden soil and evaluate their degrading potential. The plastic sample tested in this study were Low Density Polyethylene shopping carry bag. The growth of LDPE degrading strains was carried out in Mineral salt agar medium with LDPE as the sole carbon and energy source. Six strains were isolated. One of the strains namely A3 was found to show maximum growth rate. It was known that LDPE is resilient to biodegradation. Nevertheless, the present work shows the utilization of LDPE by A3 strain as carbon source and indicates that microbes are familiarizing towards hydrocarbons. The phenotypic fingerprint like Gen III biolog was used to actuate the substrate utilization of strain A3 and identified it as, Riemerella anatipestifer. Preliminary growth studies were carried out initially. The optimal conditions were found to be pH of 7.1, temperature of 37ᵒC, contact time of 72hrs, LDPE weight of 0.042g and inoculums volume of 3v/v. LDPE degradation was confirmed by the weight loss which was found to be 20.09% after an incubation of 35 days. As per our work we found that, garden soil is a good source of bacteria that can degrade LDPE. These results also signify the potential of novel strain Riemerella Sp. to degrade LDPE films. This manuscript will pave the way for future studies on biodegradation.
Improving the Quality of Rabbit Manure in Livestock Farming Groups in The Bedugul Tourist Area, Tabanan-Bali
Authors: Wirajaya Anak Agung Ngurah Mayun Wirajaya , Made Sri Yuliartini  , I Gusti Agus Maha Putra Sanjaya
Published: November 2022

To support the growth and development of plants in the Bedugul tourist area, in addition to using inorganic fertilizers, most farmers still use organic fertilizer derived from chicken manure which is easily obtained in large quantities from outside the Candikuning Village area. Until now, the source of organic fertilizer that can actually be used from solid and liquid rabbit manure in Candikuning Village is still not carried out further processing to improve the quality of rabbit manure as a nutrient source fertilizer for plants.  This opportunity can actually be used by livestock farmer groups in Candikuning Village as an opportunity to supply organic fertilizer from solid and liquid rabbit manure.  The group's problem is that solid and liquid rabbit manure has not been processed optimally, there is no house where the drying and fermentation process has not been carried out, and packaging and labeling have not been carried out. Therefore, partner groups need to be facilitated from the aspects of processing technology and improving the quality of rabbit waste, packaging and labeling, product quality testing in the laboratory, and partner group business management. This PKM program is carried out in livestock farming groups in Candikuning Village, Baturiti District, Tabanan Regency-Bali Province.  The method used to achieve the goal is through socialization, counseling, mentoring, training, and the application of technology with direct practice in the field. In this activity, the output target that has been achieved is that the partner group is independently able to utilize solid and liquid rabbit manure waste into "SOF" (Solid Organic Fertilizer) and "LOF" (Liquid Organic Fertilizer) with good quality has been packaged and labeled so that it can compete in the market and increase the income of the partner group.
Developing the Level of Political Conversation of Parents with Their Children
Authors: TARHAN Özge
Published: November 2022

In this study, it was aimed to develop a measurement tool that measures the level of talking about politics with children (11-14 years old) attending secondary school. In this direction, the draft of the scale consisting of 23 items and the personal information form were applied to 153 participants consisting of parents of secondary school students (11-14 years old). The obtained data were subjected to Cronbach’s Alpha reliability test, item-total correlation and exploratory factor analysis. The data obtained as a result of factor analyzes show that the scale consists of a single factor. The percentage of variance of the scale consisting of a single factor was calculated as 81.94%. After the EFA analysis, the scale item became 22. Then, the revised scale and personal information form were applied to the parents of 168 middle school students for confirmatory factor analysis (CFA). The fit indices obtained as a result of the confirmatory factor analysis were found to be in agreement between the model and the data, and the proposed model showed good and acceptable fit. In the final version of the scale, the Cronbach alpha internal consistency reliability coefficient was determined as 0.940. As a result of the analyzes, a 5-point Likert-type, 22-item scale of talking about politics with the children of families was developed. According to the findings, it was determined that the scale is a valid and reliable measurement tool.
Desenvolvimento de um Sistema de Controle de Acesso aos Laboratórios do IFPR Campus Jacarezinho
Authors: Contijo Ronald José , Cruz Winderson Nascimento Da , Takeuchi Renan de Oliveira Alves , Lopes Wenderson Nascimento
Published: November 2022

O controle de acesso sempre foi implantado com o objetivo de limitar o fluxo de pessoas em ambientes restritos, bem como, garantir a segurança patrimonial do local. O controle de acesso requer autenticação como pré-requisito e geralmente se baseiam em sistemas mecânicos convencionais como, por exemplo, fechaduras. Entretanto, um dos problemas desse sistema e o registro de informações dos usuários que acessam o ambiente e, ainda, a violação de acesso por pessoas não autorizadas, visto que essas chaves mecânicas podem ser facilmente copiadas e compartilhadas. Esses problemas podem ser minimizados por meio de implementação sistemas informatizados que se baseiam em códigos identificadores, como digital ou TAGs de Radio Frequency Identification (RFID), de uso exclusivo do usuário e intransferível, para fazer o controle de acesso. Nesse contexto, esse trabalho teve como objetivo o desenvolvimento de um sistema capaz de se integrar com um micro-controlador a fim de controlar o acesso e registrar a movimentação de usuários com autorização de acesso a ambientes localizados no Instituto Federal do Paraná (IFPR) campus Jacarezinho. O protótipo do sistema foi desenvolvido integrando diversas linguagens de programação de alto nível e foi testado em laboratório. O protótipo se mostrou funcional e pode ser implantado em um ou mais ambientes do IFPR campus Jacarezinho com a finalidade de aprimorar o atual controle de acesso, bem como, registrar informações do usuário, tais como o nome, a data e a hora do acesso.
Dificuldades Enfrentadas pelos Discentes de Engenharia de Controle e Automação nas Disciplinas de Exatas
Authors: Santos Jonatas Bernardino dos , Silva Ryan Borges Silgueiro da
Published: November 2022

O intuito deste artigo é identificar e caracterizar as principais dificuldades nas componentes de exatas enfrentadas pelos discentes de ECA (Engenharia de Controle e Automação) fechada ao Instituto Federal do Paraná - Campus Jacarezinho. Levantamento realizado com a pesquisa qualitativa dos estudantes, a pesquisa contou com a participação de 24 alunos de diferentes períodos que responderam um questionário elaborado pelos autores que considerou também as opiniões dos alunos em relação às metodologias utilizadas que podem ser mais ou menos efetivas para o aprendizado. Com base nos dados analisados, foram desenvolvidas ideias sobre as principais dificuldades presentes nas matérias de exatas do curso tais como: Cálculo, Geometria Analítica, Física e matérias de programação em geral; Junto a isso apresentar possíveis soluções para sanar as mesmas. O fim destas dificuldades levantadas resultaria em um menor número de evasão de componentes e desistentes dentre os alunos. Também procederia em um melhor desenvolvimento na formação dos discentes que se mantém no curso.
Controle de Nível e Temperatura em um Reservatório: Projeto e Simulação
Authors: Santos Gerson Gabriel Barbosa dos , Golinelli Marcela Caetano , Graciola Clayton Luiz , Silva Rodolfo Rodrigues Barrionuevo
Published: November 2022

A automação é parte fundamental na cadeia de produção e sua expansão em processos industriais ocorreu com o advento dos controladores lógicos programáveis (CLP), uma ferramenta versátil que permite realizar tarefas coordenadas em etapas, controlar inúmeros equipamentos simultaneamente, reduzir a variabilidade dos produtos, e aumentar a eficiência e segurança nos processos em geral. O objetivo deste trabalho foi projetar e simular um sistema automatizado para controle de nível e temperatura de um reservatório. Para simular um ambiente industrial, foi utilizado o software Codesys, que simula o CLP e a Interface Homem-Máquina (IHM), com programação em linguagem Ladder. Projetou-se o sistema de forma que fossem automatizadas as etapas de enchimento do reservatório com água fria, de aquecimento da água e do posterior esvaziamento. A metodologia de desenvolvimento e simulação do projeto consistiu em duas principais etapas, a etapa de projeto do circuito combinacional para controle do sistema e a etapa de implementação e simulação do sistema no software Codesys. O sistema projetado foi elaborado com três entradas de informação e quatro saídas de atuação. Utilizou-se dois sensores capacitivos para a detecção dos níveis de água dentro do reservatório, representando os níveis mínimo e máximo de água. Também foi utilizado um sensor de temperatura em conjunto com um aquecedor para controlar a temperatura da água no reservatório. Uma bomba d’água e uma válvula foram utilizadas para automatizar o enchimento e o esvaziamento do reservatório. Também foi projetado um alarme para situações de anormalidade do sistema. Os resultados da simulação demonstraram que o projeto foi desenvolvido adequadamente e que pode ser aplicado em indústrias e/ou processos de automação. Concluiu-se que o desenvolvimento deste projeto proporcionou a aprendizagem de novos conceitos relacionados à automação industrial, especialmente relacionado ao software de simulação, ao CLP e à IHM, contribuindo para a formação integral dos estudantes.
Diccionario Contemporáneo del Cooperativismo
Authors: Griebeler Marcos Paulo Dhein
Published: November 2022

El cooperativismo está impulsando importantes avances en sus planteamientos, fundamentos, formas y modelos de actuación y organización, su gestión y gobernanza, y su propio desarrollo. Estas evoluciones se han confirmado en el seno de la sociedad donde el cooperativismo está presente, en el mundo académico, en las políticas públicas, por parte de los agentes de promoción del desarrollo y de los gestores privados y públicos, y en la promoción económica y social. A través de una iniciativa de cooperación, los Programas de Postgrado en Desarrollo Regional de la Facultad Integrada de Taquara (FACCAT/RS) y la Universidad Regional del Noroeste de Río Grande do Sul (UNIJUÍ/RS), dirigidos por profesores centrados en los temas de Cooperativismo, Administración y Desarrollo Regional, ofrecen a la sociedad, como resultado de esta cooperación, la organización de este "Diccionario de Cooperativismo Contemporáneo".
NEUROLOGIA: Diagnósticos, Tratamentos e Cirurgias - Edição II
Authors: QUEIROZ RÉGIA NUNES DE
Published: November 2022

A Neurologia é a uma subárea da Ciências da Saúde que contempla a prevenção, diagnóstico, tratamento e intervenções das doenças que afetam o sistema nervoso central e seus componentes diretos e indiretos, como por exemplo, órgãos periféricos, funções múscoloesqueléticas. Para muitos acadêmicos e até mesmo profissionais da Neurologia, ela ainda é um campo em crescente expansão de conhecimento, que necessita atualização técnica constante devido às expansões tecnológicas dos últimos anos, o que permitiu avaliar mecanismos de ação de fármacos, diagnósticos mais modernos, intervenções cirúrgicas até então restritas apenas a alguns centros médicos de grande desenvolvimento. Portanto, a Editora Pasteur organizou o livro Neurologia: Diagnósticos, Tratamentos e Cirurgias II, com estudos de excelência dentro desta subárea, os quais permitem ao leitor amante da Neurologia se atualizar e buscar maiores conhecimentos.
On the Impact of Bell Sound on Ambient Particulates
Authors: Kourtidis Konstantinos , Andrikopoulou Ageliki
Published: November 2022

Here the authors examine whether bell sounds can have an impact on ambient aerosol levels and size distribution under atmospheric conditions. The authors present calculation results for acoustic the coagulation by church bell sounds for a range of ambient aerosol types. The results show that for orthokinetic sonic agglomeration, while the frequency spectrum of church bells is ideal for causing coagulation of ambient aerosols, the sound pressure level (SPL) becomes too low for an effect. However, in very polluted conditions, at extremely short distances from the bell dust aerosols can readily undergo sonic coagulation.
N-heterocyclic Carbene Catalysed Polymerisation of 2,5-Diformylfuran
Authors: Ruelens Wouter , Mafakheri Fariba , Lierde Viktor Van , Smet Mario
Published: November 2022

The biobased renewable monomer 2,5-diformylfuran is polymerised using various N-heterocyclic carbene (NHC) catalysts in dimethyl sulfoxide (DMSO) affording a low molar mass polymer. It is shown that catalyst structure as well as the temperature and time the polymerization is running have a noticeable effect on its molar mass. The obtained material is characterized by nuclear magnetic resonance (NMR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). An attempt at chain extension with diamine leads to precipitation of the polymer. This new biobased polymer material might be useful as a sustainable resin.
Evaluasi Implementasi Pembelajaran Tematik Integratif SD Negeri 2 Kalimendong
Authors: Kholik Eko Nur , Prihatni Yuli , Retnaningsih Rahayu
Published: November 2022

Penelitian ini bertujuan untuk mendeskripsikan implementasi pelaksanaan pembelajaran tematik integratif SD Negeri 2 Kalimendong Penelitian ini merupakan penelitian kualitatif dengan Pengelolaan Pembelajaran tematik integratif. Subjek penelitian ini adalah guru kelas I sampai kelas VI SD Negeri 2 Kalimendong dalam pengelolaan pembelajaran tematik integratif di kelasnya serta Kepala Sekolah SD Negeri 2 Kalimendong. Teknik pengumpulan data menggunakan: (a) Wawancara mendalam adalah kegiatan wawancara tatap muka secara mendalam dan terus – menerus untuk menggali informasi dan informan, (b) Dokumentasi untuk pengumpulan data yang berupa dokumen seperti: kurikulum, silabus, RPP, penilaian, hasil karya siswa, dan Laporan Hasil Belajar Siswa. Teknik analisis data yang digunakan adalah Analisis interactive model. Dari penelitian dapat disimpulkan bahwa: Hasil penelitian di SD Negeri 2 Kalimendong berlangsung dengan baik dan lancar. Berdasarkan pelaksanaan pembelajaran tematik sesuai kurikulum 2013 di SD Negeri 2 Kalimendong, maka dapat disimpulkan sebagai berikut: Komponen input aspek yang dievaluasi berupa rencana pelaksanaan pembelajaran (RPP) sudah sesuai dengan indikator yang terdapat dalam Permendikbud No. 22 Tahun 2016 Tentang Standar Proses Pendidikan Dasar/menengah Bab. III Tentang Perencanaan Pembelajaran dan fasilitas belajar sudah memenuhi kriteria minimal yang diatur dalam Permendikbud No. 24 Tahun 2007 Tentang Sarana dan Prasarana, selain itu guru juga memanfaatkan lingkungan sekitar sekolah sebagai sumber belajar. Komponen process aspek di evaluasi pelaksanaan pembelajaran tematik sudah baik dan mulai kegiatan pendahuluan,inti, penutup,dan suasana kelas selama pembelajaran tematik berlangsung terlihat antusias dan siswa aktif. Berdasarkan hasil penelitian dan pembahasan tentang pengelolaan pembelajaran tematik kurikulum 2013 di Sekolah Dasar Negeri 2 Kalimendong, Leksono, Wonosobo dengan deskripsi kualitatif, maka dapat disimpulkan sebagai bahwa Pelaksanaan pembelajaran tematik integratif kurikulum 2013 di kelas I sampai kelas VI sesuai Panduan Teknis Kurikulum 2013 Pelaksanan Pembelajaran dengan Pendekatan Saintifik di SD dan Buku Guru, namun pelaksanaan pendekatan saintifik belum terlaksana secara optimal.

Kata Kunci: pembelajaran, tematik integratif.
Implementasi Kurikulum Muatan Khusus Bahasa Mandarin di SMP Kristen Kalam Kudus Yogyakarta
Authors: Handayani Ester , Haryanto Samsi
Published: November 2022

Tujuan penelitian ini adalah mendeskripsikan dan menganalisis implementasi kurikulum muatan khusus bahasa Mandarin di SMP Kristen Kalam Kudus Yogyakarta, yang meliputi: (1) Latar Belakang, (2) Penyusunan dan Rencana Pembelajaran, (3) Pelaksanaan, (4) Hasil yang dicapai, dan (5) Kendala yang dihadapi. Penelitian ini adalah penelitian kualitatif, dengan pendekatan studi kasus. Analisis data yang digunakan adalah tahap reduksi, tahap display data, tahap penarikan kesimpulan dan verifikasi data. Hasil penelitian ini adalah (1) Kurikulum muatan khusus Bahasa Mandarin di SMP Kristen Kalam Kudus Yogyakarta dilatar-belakangi dari sejarah Gereja Kristen Kalam Kudus dan Sekolah Kristen Kalam Kudus. (2) Penyusunan kurikulum muatan khusus Bahasa Mandarin berdasarkan analisis kebutuhan siswa dan untuk mengembangkan pendidikan berbasis keunggulan global agar kualitas lulusan semakin berwawasan global dan berguna bagi dunia. Rencana pembelajaran menjadi wewenang guru bahasa Mandarin. (3) Pelaksanaan pelajaran bahasa Mandarin adalah tiga jam pelajaran setiap minggunya. Standar Kompetensi dan Kompetensi Dasar yang digunakan disemua jenjang adalah sama, yang berbeda adalah tema pembelajaran disetiap jenjangnya. Materi pelajaran Bahasa Mandarin disesuaikan dengan kemampuan awal siswa namun tetap mengacu pada standar kompetensi lulusan yang sama.(4) Hasil yang dicapai adalah mendapatkan 36 kejuaraan dalam perlombaan bahasa Mandarin, baik ditingkat Propinsi maupun tingkat Nasional. (5) Kendala yang dihadapi oleh guru dan siswa.