bluuebunny/crossref_metadata_2025 huggingface dataset:
Aprovechamiento del tamo de arroz en elaboración de fibra para papel
Authors: Fierro Fierro Leidy Tatiana , Olivar Barreto Jorge Mario , Espinosa Bayer Catalina
Published: July 2024

La preocupación por el medio ambiente hoy en día se ha vuelto una tendencia, mientras que la búsqueda de nuevos materiales ecológicos y biodegradables ha hecho que se vuelquen las miradas en los residuos de cosechas; un ejemplo de esto es el tamo de arroz, un producto con bajo nivel nutricional para la alimentación animal, pero con un alto potencial en la industria del papel. Este proyecto plantea el uso del tamo de arroz para la fabricación de papel, el cual pueda ser utilizado en la industria del empaque para diversos productos. El proceso de elaboración utilizado en este proyecto demostró que es posible obtener un papel de buena calidad a partir de este producto con muy buenas características para su uso en la industria, y se recomienda continuar con la investigación adicionando a la pasta de papel obtenida algunos polímeros naturales que mejoren las características físicas del papel.
Evaluación de parámetros de calidad en la identificación, adecuación y escaldado de la papa criolla (Solanum phureja)
Authors: Guerrero Guerrero Alba Patricia , Rivera Díaz Carlos Alberto
Published: July 2024

El objetivo de este trabajo de investigación es el estudio de la papa criolla (Solanum phureja), para lo cual se busca determinar las condiciones óptimas en las etapas de adecuación y escaldado, con miras a la estandarización e industrialización del proceso. En la etapa de adecuación se evaluó el contenido de azúcares reductores por el método de Nelson; también se evaluó la cantidad de materia seca y de almidón.  Para la clasificación se trabajó con cinco tamaños de papa criolla, realizando el análisis estadístico de la relación entre las variables peso vs. diámetro. En la etapa de escaldado  se hace un diseño experimental donde se maneja tres variables: temperatura del agua (°C), tiempo (min) y adición de cloruro de calcio (g/l); siendo la variable de respuesta (Respuesta Global) el promedio de la sumatoria de respuestas de peroxidasa, textura, fracturabilidad y penetrabilidad. Como resultados de la adecuación se encontró un contenido de 0.072% de azúcares  reductores, 23.57% de materia seca y 16.49% de almidón. Del proceso de clasificación se evidenció que el tamaño tres es el predominante, con un porcentaje de 32.52%. La etapa del escaldado se realizó con los tres tamaños más representativos (2, 3 y 4); en esta etapa, para la papa criolla de tamaño 2 la mejor respuesta es un tiempo bajo y una temperatura alta (9,6 min y 90°C). Para el tamaño 3 la mejor respuesta se encuentra en la combinación de los niveles medios (17 min y 85°C, aprox.). Para el tamaño de papa  número 4 la mejor respuesta se encuentra al extremo más alto de tiempo y temperatura (21,3 min y 93,4°C). La adición de cloruro de calcio no es significativa estadísticamente en ningún tamaño
Incidencia de las condiciones climáticas sobre el cultivo de arroz (Oryza sativa) en el municipio de Campoalegre-Huila
Authors: Saavedra Mora David , Machado Cuellar Leidy , Murcia Torrejano Valentín , Rodríguez Salamanca Diego
Published: July 2024

Las oscilaciones climáticas influyen considerablemente en la producción de los cultivos; por esta razón, se estudió la incidencia de las condiciones climáticas sobre la productividad del cultivo de arroz (Oryza sativa) por medio de un análisis de datos de producción y variables climáticas registradas en la estación meteorológica ubicada en el Municipio de Campoalegre entre los años 2012-2016. Los datos de producción fueron registrados por grupos de investigadores y técnicos de la Federación Nacional de Arroz seccional Campoalegre (Fedearroz). Para la descripción de datos se realizó un análisis de varianza con pruebas de significancia Tukey (p<0.05) y un análisis de componentes principales para determinar la relación entre variables. Se encontró que para el año 2016 una producción media mensual de 7,54 Ton/ha, con un acumulado anual de 90,5 Ton/ha, presentó diferencias significativas (p<0.05) con relación a los demás años. En este sentido, se encontró que los meses recomendados para la siembra van desde marzo hasta junio y los meses de cosecha son octubre, noviembre y diciembre. Por otra parte, las variables de mayor incidencia en la producción de arroz son el déficit de presión de vapor (DPV), la temperatura (°C), la radiación fotosintéticamente activa (PAR) y la evapotranspiración con una explicación del 70,1%.
Producción de biofertilizantes: un diagnóstico desde la vigilancia tecnológica
Authors: Molina Pabón Anyela Rocío , Semanate Quiñonez Hugo
Published: July 2024

Este trabajo presenta los resultados del ejercicio de vigilancia tecnológica realizada en la formación profesional del Sena. En este se presentan los principales usos de los biofertilizantes utilizados en la producción agrícola, la normatividad existente en el área, enfermedades, plagas, tipos de biofertilizantes utilizados, productores e investigaciones desarrolladas en el área. Finalmente, se presentan las conclusiones del  trabajo y se anexa una ficha para sistematizar la información de vigilancia tecnológica.
Requirements and Test Methods for Firefighter Personal Respiratory and Ocular Protection Equipment in Russian and European Standards
Authors: Loginov V.I. ,   FGBU VNIIPO of EMERCOM of Russia, Maslov Yu.N. , Kislyakov R.A. , Karpova I.A. ,   FGBU VNIIPO of EMERCOM of Russia,   FGBU VNIIPO of EMERCOM of Russia,   FGBU VNIIPO of EMERCOM of Russia
Published: July 2024

Due to the specifics of firefighting work, a significant amount of requirements is applied for compressed air breathing apparatuses. Many various test methodologies included in Russian national and European standards were developed to assess breathing apparatuses and their components. Such requirements and test methodologies in the abovementioned standards are, to a certain extent, similar; e.g., the requirement for technical variables, their values, and verification methods as the variables are based on the physiology of human breathing. Requirements and test methods for the ergonomics of products are similar as well. However, there are some differences in requirements and test methods stipulated in the Russian and European standards. It is primarily the climatic design of compressed air-breathing apparatuses and their components, for instance, the front parts. The requirements for the values of subzero temperatures at which climatic tests for breathing apparatuses are conducted are stricter in Russian standards, which is primarily caused by the climatic conditions on the territory of the Russian Federation. At the same time, European standards apply stricter requirements for the resistance of compressed air breathing apparatuses and their front parts to the impact of hazardous factors of fire, mainly thermal factors (exposure to open flame). The flame temperature during tests under the European standard is 100 °С higher. However, European standards contain no requirements for resistance to certain mechanical impacts, e.g., vibration. There is a difference in the structural design of the test equipment applied. It can be concluded that most of the requirements and test methods for compressed air breathing apparatuses contained in Russian and European standards are similar. A more thorough analysis to make conclusions regarding the applicability of European requirements and methods for compressed air breathing apparatuses produced in Russia is possible on the basis of comparative tests.
Political Propaganda in the “Progsus” Program on MNC News, Channel 84
Authors: Aisyah Siti , Mansur Suraya
Published: July 2024

Propaganda in the media is often carried out to gain power or strengthen legitimacy. In 2024–2028, the Indonesian government will again hold general elections (PILEG), which are held every five years. The object of this research is a special program broadcast on Channel 84 Television MNC NEWS. The theory used in this research is propaganda theory applied to reporting on television. The research method is Framing Analysis Gamson and Modigliani, with a constructivist qualitative approach. The data collection technique carries out content analysis of Entman’s framing. There are 33 News stories regarding Political Reporting about the 2024 election. The research results show that the owner of the Perindo Party, Harry Tanoesudibjo, who is also the owner of MNC News Morning, uses all the content formed in the framing of MNC News Morning according to the political policies and interests of the media owner.
Modelo de avaliação de inovações tecnológicas em áreas da perícia criminal
Authors: Montezano Lana , Ferreira Paulucio Felipe , Barros Cocentino Luiz Guilherme , Alysson Dehon Moraes Medeiros José
Published: July 2024

Objetivo: descrever a concepção de modelo de avaliação de inovações tecnológicas de três casos aplicados ao aperfeiçoamento da perícia criminal, e apresentar estimativas de resultados esperados com o uso dos aplicativos.
Método: pesquisa descritiva de abordagem mista, por meio de pesquisa documental, entrevistas, observação participante e aplicação de questionário eletrônico.
Resultados: Identificou-se problemas, soluções, produtos, beneficiários, resultados esperados e ficha de indicadores. Os tipos de resultados esperados são melhorias de desempenho organizacional, processo organizacional e qualidade dos serviços públicos. Apresentam-se estimativas de redução de tempo, melhor aproveitamento do custo do perito e redução de gastos de papel que proporcionam maior eficiência, economicidade e sustentabilidade decorrentes da inovação.
Originalidade/valor: desenvolve um modelo lógico para avaliar inovações no setor público, avançando na identificação de tipos de resultados e formas de mensurar, além de demonstrar estimativas de resultados.
Conclusões: o uso de modelo de avaliação de inovação permite subsidiar a tomada de decisão quanto a continuidade e priorização no desenvolvimento da inovação, com base em dados da estimativa de resultados, além de contribuir com o aperfeiçoamento da inovação em si com foco no resultado esperado.
World Revolution Against Russia: the Factor of the Ukraine in the Cause of Russia Fragmentation for the Sake of World Soviet Republics (1923)
Authors: Modest Kolerov
Published: July 2024

The history of Russia transforming into the USSR is the history of fragmentation of Russian into the Russian Soviet Federative Socialist Republic and other union republics of the USSR initiated by the Bolsheviks on the basis of their doctrine. In other words, the history of the Bolshevik project of world revolution, or the World Soviet Republics, that was supposed to be realized in the world mosaic of ethno national states. This concept was clearly evident in the process of USSR Constitution preparation in 1924 (it came into force in 1923)
The Two Hypostases of Russian Civilization
Authors: Joseph Diskin
Published: July 2024

The relation between “Soviet” and “Russian” may be viewed as a derivative of two ideologically formed narratives that claim to become the principal legitimacies of the institutional system. While assessing this correlation one should take into account the infl uence of these narratives on the mass consciousness structure and their interconnection with sociocultural and civilizational roots of the national social development. But due to the inner heterogeneity of the narratives in question, their principals are hardly connected with the moral and ethic aspects of the social development that form the basic ground of Russian civilization and need doctrinal adjustment and moral components reinforcement
Tentative People: Alexander Zinoviev on the Issue of Russians Betraying Themselve
Authors: Leonid Polyakov
Published: July 2024

This paper is an attempt to fi nd the answer to the question how prominent Russian thinker Alexander Zinoviev treats the problem of the Russian people’s identity as innate communists after they failed to prevent the collapse of the Soviet Union. What really happened to the Russian people and was it an act of self-betrayal? And what was the cause of that betrayal? And fi nally, who is to be blamed for the demise of the USSR and the tragic failure of the Russian Experiment: Russian people, Communist Party leaders or the West? In the article the author also brings up the issue of Zinoviev’s personal responsibility for the collapse of Russian communism which the thinker seemed ready to admit
On I.A. Ilyin’s Attitude to Fascism and Nazism
Authors: Arkady Minakov
Published: July 2024

The article is devoted to the critical examination and refutation of the “black myths” about A.I. Ilyin (1883–1954), the greatest Russian philosopher, jurist, religious thinker, who infl uenced profoundly modern Russian conservative thought. Some representatives of the left and liberal camps claim that I.A. Ilyin was allegedly a supporter of Fascism and Nazism in the 1920s and 1940s. The author of the article examines the true attitude of I.A. Ilyin to rightwing radical ideologies and practices over a long time and comes to the conclusion that the attribution of the Russian thinker to collaborationism, Fascism and Nazism is possible only through conscious falsifi cation and tendentious tearing of situational assessments from the general context of his life and work
Nicholas Roerich: Loud Silence
Authors: Natalia Rostova
Published: July 2024

The article is devoted to the artist and thinker N. Roerich, whose work not only covers the Russian and Soviet periods of our history, but according to its internal logic breaks up into two stages – national and cosmopolitan. If the “early” Roerich turned to the Ancient Slavic theme, to the study of the spiritual roots of Russia, for which he was accused of “leavened patriotism”, in the more mature period of his activity he became an apologist for universal values. According to A. Benoit, he made the transition to broad humanity. However, the author of the article shows that Roerich moved not just to universal values, challenging the opposition of the West and the East, antiquity and modernity, science and religion, but sought to assert universal cosmic values that undermined the idea of human exclusivity. Roerich's synthesizing thinking dissolved not only cultural, but also ontological differences. The success of Roerich's ideas in the Soviet and post–Soviet period of our history, according to the author of the article, indicates not the political reasons – Roerich's own attempts to synthesize Buddhism and communism – but the more fundamental shifts at the anthropological level. The crisis of Christianity, man’s rejection of the church conciliar consciousness, that is the rejection of the usual forms of subjectivity and at the same time the need for these forms, give rise to the phenomenon of a new mysticism. The popularity of Roerich's ideas is the wrong side of a society that organizes external life, but does not offer the completeness of the organization of a person's inner life. The author shows the anthropological fl aws of the phenomenon of new mysticism and reveals the meaning of universal values in terms of “spiritual subtraction”.
Eulogists of Great Changes: Images of the Future in Russian Soviet Song Poetry from the Revolution to the Collapse of the USSR
Authors: Alexey Panchenko
Published: July 2024

Russian Soviet song from the moment of its emergence bore no ethnic character, but that of an imperial one, it was a means of relaying certain ideas and images throughout the Soviet Union. Simultaneously it bore the imprint of the events that were taking place in the country and formed the image of them among the general public. Originating initially as a revolutionary song, it called people to fi ght fi rst against exploiters and then against counter-revolutionary elements. In the 1930-ies the song formed a positive image of the present, with little reference to either the past or the future. From the second half of the 1950-ies the image of the future becomes more distinct, it is connected with the exploration of space and hard-to-reach places on Earth, the efforts made in the present will bear fruit in the lifetime of the next generations. But from the mid-1970-ies, Soviet pop began to lose the battle for the hearts of people to Russian rock, representatives of which called for escape from reality rather than building a new world. By the mid-1980-ies, the call for changes becomes the key motive, but there is no image of the future that should follow those changes
The Perception of F.M. Dostoevsky’s “Demons” Novel in Soviet Culture of the 1930-ies.
Authors: Yuriy Pushchaev
Published: July 2024

This is the fi rst one of the small seri4s of articles devoted to the history and peculiarities of the perception of the “Demons” novel by F.M. Dostoevsky in Soviet culture, ideology and literary criticism in the 1930s. The author assumes that in general the attitude towards Dostoevsky in those years was noticeably tougher in comparison t6o that in the 1920s. For the emerging Soviet culture in the 1930s Dostoevsky became more and more persona non grata. Both publishing of his works and the scientifi c research of his creative legacy were cut down. The ideological toughening was specifi cally directed against his most famous anti-revolutionary and anti-nihilistic novel - “Demons”. The author of the article especially focuses his attention on the famous attempt “Demons” mono edition by “Academia” publishing house, the total print run of which was withdrawn and destroyed after the pejorative campaign in the press
“A Random Exception or the First Sign?”. How the Book “Works” by Nikolai Fedorov was Published and Received: New Materials (1982–1983)
Authors: Anatoly Chernyaev
Published: July 2024

This is the third article in the thematic series devoted to th4e publication in 1982 of the “Works” by Nikolai Fedorov as part of the academic series (library) “Philosophical Heritage”. It is devoted to the public outcry caused by the book publication, the reaction to its appearance on the part of policymakers and higher academic authorities (1982–1983). In the article the author examines the circumstances of the book’s publication, including the fi nal editing of the text, due to group political and ideological motives; organizational events carried out after the publication of the book by party and scientifi c governing bodies, as well as the anti-Fedorov campaign launched in the press during this period, its content and participants.
Russian and Soviet in the Civilizational Space of Russia as the Basis of National-Imperial Synergy
Authors: Igor Tyapin
Published: July 2024

The predominance of the principle of historical unity over the historical gap within the framework of methodological schemes of genetic information and genetic breeding in the understanding of national history assumes the assessment of the Soviet era as the key link in understanding historical integrity, and the concepts of empire and the national state as a context. The article proves the validity of the defi nition of both monarchical and Soviet Russia as an «inverse empire» with an instrumental and pragmatic attitude of the government towards the state-forming people. Artifi cial contrasting of imperial and national aspect in the framework of the stable policy of suppressing the national awareness by the state, contributes to the fi nal destruction of Russian cultural identity, while the successive development of Russia is possible on the basis of the synthesis of imperial and national forms of statehood
أثر التقدم التكنلوجي في تحسين وتطوير المبادئ التي تحكم سير المرافق العامة
Authors:   College of Alimam Aladgam Uni. - Iraq, Mohammad Nathir
Published: July 2024

الأصل أن النشاط الإداري لمتصل بالمرافق العامة يخضع في الواقع التقليدي لمجموعة من المبادئ استقاها الفقه من إحكام القضاء من أجل إن تستمر هذه المرافق في تأدية دورها في إشباع الحاجات العامة للجمهور خاصة وأنهم قد رتبوا شؤونهم في ضوء تأمين هذه المرافق للحاجات العامة الضرورية كما هو الحال في مرفق الماء أو الكهرباء والأمن وغيرها، إلا إن إدارة المرافق العامة بالأسلوب التقليدي جعل الإفراد يعانوا الكثير من المشاكل منها: بطء الانجاز، زيادة في النفقات وغيرها ولذلك وجد نظام الحكومة الإلكترونية الذي يتيح إدارة هذه المرافق بشكل إلكتروني حيث يتسم بسرعة الانجاز وقلة التكاليف، توفير الكثير من الوقت والجهد للأفراد والموظفين. وتعد المرافق العامة من أهم الأنشطة التي تقوم بها الدولة وتهدف من خلالها إشباع الحاجات العامة التي يحتاجها الجمهور، ولذلك وضعت مجموعة من المبادئ التي تضمن حسن تقديم المرافق العامة لخدماتها بشكل دائم ومستمر ومنتظم ومن دون انقطاع، إلا إن اختلاف طريقة إدارة المرافق العامة وتحولها من الأسلوب التقليدي إلى الأسلوب الحديث القائم على التكنولوجيا الحديثة، فكان من الطبيعي أن تتأثر تلك المبادئ بنظام الإدارة الإلكتروني الذي يعتمد على سرعة الإنجاز وسهولة الإجراءات.
Transparency, Integrity& Anti-Corruption
Authors:   College of Rights & Political & Administrative Sciences – Lebanese Uni. – Lebanon, Chokr Ali
Published: July 2024

يعتبر الفساد أحد المظاهر التي تعيشها الدول وهو يعيق قيام دولة القانون والمؤسسات، وترتفع نسب الفساد في البلدان النامية بشكل كبير، وتتخذ البلدان إجراءات تتعلَق بمكافحة الفساد بدءاً من إصدار القوانين، ومروراً بتشكيل الأجهزة المعنية بالمكافحة، وصولاً إلى الإجراءات التنفيذية. فالفساد ظاهرة حظيت باهتمام الباحثين والمهتمين الذين اعتبروا أنَ هناك ضرورة لوضع إطار تشريعي ومؤسسي لتطويق المشكلة وعلاجها من خلال خطوات جديه ومحدده ومكافحة الفساد بكل صوره ومظاهره وفي كافة مجالات الحياة. ونجد أنَ النظم السياسية المختلفة تهتم بمكافحة الفساد والاصلاح الاداري، خصوصاً بعد ان اتسع دور الدولة في القرن الحادي والعشرين، واصبحت مسؤولياتها تتجاوز بكثير مسؤوليات الدولة في القرون الماضية، إذ اهتمت الدول المتقدمة بالإصلاح الاداري الى درجة انشاء وحدات متخصصة فنية هدفها التطوير الاداري وتقوم بدراسة مستمرة لجميع الانظمة في الدولة، من حيث مدى ملاءمتها لأهداف السياسات العامة وعلى ضوء التطورات الاجتماعية والسياسية والاقتصادية والفنية.
Integration of methodologies for continuous improvement and green innovations: towards sustain-able organizations
Authors:   Elixir Zorka – Mineralna đubriva DOO, Šabac, Serbia, Salkunić Alija , Gadže Lidija , Vila Anđela
Published: July 2024

Sustainable organizations are those actively striving for sustainable development and inte-grating sustainability principles into all aspects of their operations, including continuous process improvements. These organizations recognize the importance of balancing economic, environmen-tal, and social factors and are dedicated to continuous work on enhancement of all these areas. This paper, based on theoretical considerations, explores the integration of unceasing improve-ment methodologies, such as Kaizen and Lean approaches, with green innovations and sustainabi-lity principles to achieve sustainable business practices. The focus is on understanding how these methodologies can support the development of sustainable organizations and contribute to sustai-nable development. Continuous improvement methodologies, like Kaizen and Lean approaches, emphasize the importance of waste elimination and process optimization, while green innovations aim to improve products and services with minimal negative environmental impact. Integrating these approaches enables organizations to achieve efficiency and competitive goals while reducing their ecological footprint. The paper also proposes a model that integrates Lean, KAIZEN™, and green innovation concepts for sustainability. The KAIZEN™ approach is used to ensure the involvement of all organization members in reducing any negative environmental impact without significant capital investments. The implementation methodology describes a logical sequence of steps. It is systema-tic, easily understandable, and simple in structure, and can be applied by organizations of all si-zes and sectors with minimal resources.
Hydraulic of activated carbon filters washing in water treatment plants
Authors:   Eko-Vodo Projekt, Beograd, Stanojević Miodrag
Published: July 2024

During backwashing high-speed gravity filters with water, the filter medium expands and the water level above the filter rises, so that the impurities that have accumulated on it during the filtration process, and which are lighter than the material of the medium, are taken to the sewer through the overflow. The size of the expansion depends on the speed of the water flow through the filter medium during washing, as well as on the viscosity of the water, which changes depending on its temperature. For filter mediums such as quartz sand or a combination of sand and other materials (anthracite, tuff, zeolites, etc.), there are various methods in the literature for determining water flow rates during washing the layer of the applied medium, which enable its expansion sufficient to remove impurities. However, for adsorptive materials such as granulated activated carbon, which has recently been increasingly used as final filtration in the purification of drinking water, there are still no formulas that could reliably give valid results for calculating the washing rates of such filters. In the paper, the author presents his own attempt to solve this problem, relying first of all on practical experience gained by monitoring the 36-years operation of PPV "Makiš" in Belgrade, as well as on experimental curves of renowned world manufacturers of activated carbons.
Densities and viscosities of binary systems with N,N-Dimethylaniline and Tetra Ethylene Glycol Dimethyl Ether or N-Methyl-2-Pyrrolidone, as potential solvents for flue gas desulphurization processes
Authors:   University of Belgrade, ", Živković Nikola ,   Vinča",   Institute for nuclear sciences, Belgrade, Živković Emila ,   University of Belgrade, Faculty of technology and metallurgy, Belgrade, Kijevčanin Mirjana ,   University of Belgrade, Faculty of technology and metallurgy, Belgrade
Published: July 2024

Sulfur oxides are emitted as one of the products in the process of combusting solid fossil fuels in thermal power plants, especially the Kolubara and Kostolac lignites in the Republic of Serbia. In order to reduce the emission level of the indirect Greenhouse gases (GHG) from sta-tionary sources, it is inevitable to implement flue gas desulfurization (FGD) technology. In addi-tion to the classic limestone process, technological procedures based on the physical or chemical absorption of sulfur oxides in the solvent and its thermal regeneration are becoming increasingly common. In order to properly design and optimize the process, it is significant to precisely deter-mine the thermophysical properties of pure components and their mixtures. The paper presents the results of determining the density and viscosity of two binary mix-tures, N,N-Dimethylaniline (N,N-DMA) + Tetra Ethylene Glycol Dimethyl Ether (TEGDME) and N,N-Dimethylaniline (N,N-DMA) + N-methyl-2-pyrrolidone (NMP). Measurements were made using a densitometer Anton Paar DMA 5000 and Stabinger viscometer Anton Paar SVM 3000/G2, at atmospheric pressure. The obtained experimental results are presented as a function of temper-ature and N,N-DMA mole fraction. N,N-DMA belongs to the group of amines, and it has been used as a sorbent for purification of flue gases in processes with thermal regeneration (CANSOLV, Sulphidine and ASARCO pro-cesses). The other two organic solvents are TEGDME and NMP. Special attention was paid to NMP due to its low cost and low viscosity, with its favorable properties, making it competitive as a solvent for FGD. TEGDME is a polar solvent, but it is not selective to SO2 and other gaseous components, so NMP has been suggested as an alternative solution. A regenerative process for SO2 removal, with TEGDME, has already found commercial application (Solinox process). NMP is already industrially used as a solvent in Lurgi's Purisol process, due to its nature for selective desulfurization of flue gases.
Determination of the density of PVC polymer materials by the immersion method
Authors:   Visoka tehnička škola strukovnih studija u Zrenjaninu, Zrenjanin, Republika Srbija, Lazić Matilda , Halas Dragan ,   Visoka tehnička škola strukovnih studija u Zrenjaninu, Zrenjanin, Republika Srbija, Dedić Aleksandar ,   University of Belgrade, Faculty of forestry, Belgrade, Salemović Duško ,   Visoka tehnička škola strukovnih studija u Zrenjaninu, Zrenjanin, Republika Srbija
Published: July 2024

In this work, the density of the series of solid, non-cellular, commercially usable and shaped polymer materials (so-called plastics) was determined. The method of determining the density of non-cellular polymeric materials (plastics) was applied in accordance with the international sta-ndard ISO 1183-1: 2019, Part A: liquid immersion method. Based on the results of previous re-search, it was assumed that the examined samples were made of polymer materials based on PVC (rigid or flexible PVC), that is, PVC with various additives and/or plasticizers. Previous research included the assessment of the type/type of plastic mass using the burning test as a rapid method of identification of polymeric materials. It was also assumed that by applying the chosen method, results corresponding to the density of PVC polymer with additives and/or plasticizers, which ranges from 1.44 to 1.48 g/cm³, will be obtained. The density of PVC polymer can vary in relation to the density of typical PVC depending on the additives used, e.g. fillers, color stabilizers, printing, etc. and especially plasticizers. Based on the obtained results of density determination by the method used, it can be considered that the assumption obtained by the burning test (previous research) according to which the samples were made of PVC polymer has been preliminarily con-firmed. The samples differ from each other according to the density of the material, which is signi-ficantly affected by the presence of additives to plastics and plasticizers. Preliminarily, it can be considered that the obtained deviations of the density of the samples in the examined series come from differences in composition and. consequently, in the structure of the examined materials, which is in accordance with the assumptions from the used literature.
Correlation of structure and potential pharmacological activity of spirohidantoins derived from α-Tetralone
Authors:   University of Belgrade, Innovation Centre, Faculty of Technology and Metallurgy, Belgrade, Lazić Anita , Đorđević Ivana ,   University of Belgrade, Institute of chemistry, technology and metallurgy, Belgrade, Gak Simić Kristina ,   University of Belgrade, Innovation Centre, Faculty of Technology and Metallurgy, Belgrade, Matović Luka ,   University of Belgrade, Innovation Centre, Faculty of Technology and Metallurgy, Belgrade, Mašulović Aleksandra ,   University of Belgrade, Innovation Centre, Faculty of Technology and Metallurgy, Belgrade, Lađarević Jelena ,   University of Belgrade, Faculty of technology and metallurgy, Belgrade, Trišović Nemanja ,   University of Belgrade, Faculty of technology and metallurgy, Belgrade
Published: July 2024

Hydantoin is a nonaromatic five-membered heterocycle, which is considered a valuable, privileged scaffold in medicinal chemistry. The importance of the hydantoin scaffold in drug dis-covery has been reinforced by several medicines in clinical use, such as anticonvulsants (phenyto-in), antibiotics (nitrofurantoin), anticancer drugs (enzalutamide) and keratolytics (allantoin). To design new potentially pharmacologically active compounds, six spirohydantoin derivatives were synthetized and fully characterized by determination of the melting points, elemental analysis, FT-IR, 1H and 13C NMR spectroscopic methods. Effects of the substituents on the shift of the absorp-tion maxima of synthetized compounds were analyzed using the linear solvatation energy relation-ship, while the influence of the chemical structure on the pharmacokinetically relevant properties of the investigated spirohydantoin derivatives was evaluated using the Lipinski’s rule of five, Veber, Egan and Ghose’s empirical criteria, as well as different in silico methods. In order of de-tailed analysis of the potential pharmacological activity of the synthesized spirohydantoins, their potential pharmacological properties were correlated with the corresponding solvent effects.
Assessing the pharmacological potential of synthetic colorants with pyridone core
Authors:   University of Belgrade, Innovation Centre, Faculty of Technology and Metallurgy, Belgrade, Mašulović Aleksandra , Lazić Anita ,   University of Belgrade, Innovation Centre, Faculty of Technology and Metallurgy, Belgrade, Đorđević Ivana ,   University of Belgrade, Institute of chemistry, technology and metallurgy, Belgrade, Mijin Dušan ,   University of Belgrade, Faculty of technology and metallurgy, Belgrade, Trišović Nemanja ,   University of Belgrade, Faculty of technology and metallurgy, Belgrade, Matović Luka ,   University of Belgrade, Innovation Centre, Faculty of Technology and Metallurgy, Belgrade, Lađarević Jelena ,   University of Belgrade, Faculty of technology and metallurgy, Belgrade
Published: July 2024

Azo dyes are known as structurally diverse class of organic compounds bearing one or more azo groups (–N=N–) as a bridge between organic residues of which at least one is an aromatic moiety. This group of synthetic dyes is obtained easily by the reaction of diazo coupling with high yield. The importance of azo dyes is reflected in the fact that they account for 60 % of the total number of the dye structures known to be manufactured and used in the coloration of textiles, leather, plastics and cosmetics. Aside from their traditional usage, azo dyes are known for their therapeutic properties and wide range of applications in biomedicine and pharmaceutical indus-try. Hereby, the present study aims to investigate the relationship between the chemical structure and pharmacological activity of four azo pyridone dyes taking into account the tautomeric form of dyes. The relationship was determined empirically using appropriate software packages as well as in vitro using the 2, 2’-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) method. The re-sults of in silico prediction suggested that all investigated compounds possess good oral bioavail-ability, while the results of the ABTS assay indicate poor to excellent antioxidant activity depend-ing on the substituent in the phenyl ring. Considering the broad applications of arylazo pyridone dyes, as well as the fact that their relative importance may increase in the future, results obtained in this study serve as a basis for further investigations.
Cost-effective production of CuCrZr alloy using powder metallurgy
Authors:   University of Belgrade, ", Simić Marko ,   Vinča",   Institute for nuclear sciences, Belgrade, Stašić Jelena ,   University of Belgrade, "Vinča" Institute for nuclear sciences, Belgrade, Božić Dušan ,   University of Belgrade, "Vinča" Institute for nuclear sciences, Belgrade, Žekić Andrijana ,   University of Belgrade, Faculty of physics, Belgrade, Milojević Milica ,   University of Belgrade, Faculty of physics, Belgrade, Ružić Jovana ,   University of Belgrade, "Vinča" Institute for nuclear sciences, Belgrade
Published: July 2024

Promising copper-based material with potential application in future fusion reactors, as construction material, is CuCrZr alloy. The aim of this study was to produce improved CuCrZr alloy using powder metallurgy (PM). Applied PM techniques were mechanical alloying, cold pressing and sintering. The commercially produced prealloyed CuCrZr powders was mechanically alloyed (MA) for 5 hours in argon inert atmosphere using high-energy ball mill (Turbula mixer). Mechanical alloying was employed to increase dislocation density inside the Cu matrix which will contribute hardness enhancement after densification. Structural parameters (crystallite size, strain and lattice parameters) of MA powders and compacts were investigated using X-ray diffrac-tion. Obtained results indicate that after mechanical alloying, crystallite size and lattice parame-ters of copper matrix decrease compared to starting material. Further, XRD analysis confirmed presence of CuZr reinforcing particles after sintering. Microstructural analysis and distribution of reinforcing particles inside the Cu matrix were performed using SEM and XRD. Measurements of hardness showed that in situ formation of CuZr inside the Cu matrix significantly raise hard-ness values 45% compared to hardness of pure copper compact.
Lo crítico, lo creativo, y lo cuidadoso: una aproximación al concepto de pensamiento complejo en Matthew Lipman
Authors: Bohórquez Olaya Claudia Inés Bohórquez Olaya , Pulido Cortés Oscar , Suárez Vaca María Teresa , Lara Buitrago Paola Andrea , Cañizalez Mesa Natalia Elizabeth , Castro Patarroyo Lizeth Ximena , Cruz Vargas Iván Darío , Mariño Díaz Liliana Andrea , Patiño Cuervo Daniela
Published: July 2024

En el siguiente texto se realizará un rastreo de carácter conceptual a la categoría pensamiento complejo a partir de Mathew Lipman, un pensador estadounidense que innovó en la educación con sus teorías a propósito del programa Filosofía para Niños, el cual tiene como objetivo promover la enseñanza generalizada de la filosofía y una adaptación del concepto de pensar por sí mismo, materializando- las a partir de novelas que permiten guiar al niño y al adulto que lo acompaña por los diferentes caminos del saber. Para hablar de pensamiento complejo, se hará una aclaración con relación a lo que la categoría en sí misma significa en términos de Lipman, posteriormente se abordan los tres tipos de pensamiento que para el autor comprenden la categoría inicial como son: pensamiento crítico, pensamiento creativo y pensamiento cuidadoso.
Convergencias y divergencias dos posturas teóricas sus posibles imbricaciones para investigar en educación e infancia
Authors: Bohórquez Olaya Claudia Inés , Pulido Cortés Oscar , Suárez Vaca María Teresa , Lara Buitrago Paola Andrea , Cañizalez Mesa Natalia Elizabeth , Castro Patarroyo Lizeth Ximena , Cruz Vargas Iván Darío , Mariño Díaz Liliana Andrea , Patiño Cuervo Daniela
Published: July 2024

El siguiente apartado tiene como objetivo exponer algunas de las divergencias y convergencias en relación a la categoría pensamiento complejo desde Mathew Lipman y Edgar Morín. Ambos concentrados respectivamente a teorizar sobre asuntos propios de la educación, por esto, a continuación, se resume de manera breve la perspectiva que cada autor construye de la categoría pensamiento complejo desde una perspectiva epistemológica, concibiéndolo como aquello que es capaz de construir y organizar desde la incertidumbre, un pensamiento que favorece el reconocimiento de la singularidad, los elementos individuales y concretos. En este sentido Morín (1994) fundamenta:
Does Inflation Matter? The Influence of Perceived Price Changes on Well-being
Authors: Below Łukasz
Published: July 2024

We confirm the inflation and well-being correlation scheme while filling the gap in the literature and estimating the effects of inflation perception on wellbeing. We discover the significant heterogeneity in attitudes toward inflation and inflation perception among European countries. While the inflation perception influence on well-being in Eastern Europe is higher than the influence of HICP, for Western Europe, it is the opposite. Both groups differ in terms of the marginal rate of substitution between inflation and unemployment – the effects of higher unemployment are more severe in comparison to the influence of inflation in Western Europe.
Critical Analysis of the Right of Publicity
Authors: Abdullah Ahmed Bzhar
Published: July 2024

This article critically analyses the right of publicity under the laws of the United States (specifically California and New York), Iraq, the United Kingdom and the European Convention on Human Rights (ECHR) convention. The right of publicity is defined as a right designed to preclude the unauthorised utilisation of an individual's identity, typically involving appropriation of an individual’s likeness, name, voice, or image. This right was recognised to address the gaps and shortcomings of the right to privacy. This article analysed the legal frameworks of various jurisdictions, including the US states of New York and California, Iraq, the UK, and the ECHR. It was found that the right of publicity is conferred upon individuals by statutes in New York without reliance on common law. However, in California in addition to statutes, this right is also protected by common law. Conversely, Iraq, the UK, and the ECHR lack dedicated provisions for safeguarding the right of publicity. Still, there exist certain legal frameworks and common law principles in these jurisdictions that provide some degree of indirect protection to individuals. Given the global technological advancements, there is a need for protection to be afforded to individuals in order to safeguard their identity, and this protection could be achieved through the right of publicity. Consequently, this study suggests that Iraq, the UK and the EU should enact specific legislation governing the right of publicity. Such legislation would facilitate a more direct process for individuals seeking compensation for violations of this right. However, any regulation of this right shall carefully strike the balance between an individual's right to control their identity and the right to freedom of expression.
Da conformidade constitucional da reforma de 2023 do Código do Trabalho
Authors: Sá Gomes Gonçalo
Published: July 2024

Este texto visa dar resposta a algumas questões de constitucionalidade que a reforma de 2023 (a Agenda do Trabalho Digno) do Código do Trabalho suscita. Analisaremos o artigo dos Professores Romano Martinez e Gonçalves da Silva e tentaremos contribuir para a análise de algumas das medidas mais controversas da reforma – a proibição de terceirização (artigo 338.o-A), a irrenunciabilidade dos créditos laborais (artigo 337.o, n.o 3), a atividade sindical na empresa (artigo 460.o, n.o 2), e a arbitragem para apreciação dos fundamentos da denúncia da convenção coletiva (artigo 500.o-A).
A derrota da definição de “edificação” no RJUE (Regime Jurídico da Urbanização e Edificação)
Authors: Gomes Paulo Jorge
Published: July 2024

A definição legal de “edificação” prevista no Regime Jurídico da Urbanização e Edificação (RJUE) é juridicamente pouco clara sobre se estruturas não incorporadas no solo estão sujeitas ao controlo urbanístico e ao respectivo regime sancionatório. As alterações promovidas pelo Decreto-Lei n.o 10/2024, de 08 de Janeiro, não sanaram as dúvidas. Avançamos argumentos analíticos no sentido de que essas estruturas podem ser consideradas edificações não por causa, mas apesar da definição legal. No entanto, no caso de edificações atípicas defendemos a inaplicabilidade do regime sancionatório por não estar preenchido o ilícito-típico da sanção e pela proibição de analogia das normas sancionatórias.
La protección de datos desde el diseño y por defecto como obligación legal preventiva de la domótica
Authors: Landa Reza Idoia
Published: July 2024

Aunque el control de la luz, agua, calefacción o persianas parezca parte de una película de ciencia ficción, ya es una realidad. Por ende, el derecho ha de dar respuesta a los riesgos jurídicos que plantea el uso de esta tecnología. No solo a los problemas técnicos y de seguridad tanto para el inmueble o el usuario, sino los relativos al derecho fundamental a la protección de datos personales del interesado. El hecho de recoger y almacenar automáticamente datos en un hogar tiene sus riesgos, si un dispositivo no tiene una medida de seguridad suficiente, puede existir una brecha de seguridad, lo cual puede traer la perdida de control de los datos personales. Un sistema domótico está compuesto de muchos dispositivos que pueden ser de diversos fabricantes. Por ello, es necesario identificar un sistema que acredite el respeto del derecho a la protección de datos personales durante todo el ciclo de vida de los mismos.
Quantum Sensing Can Already Make a Difference. But Where?
Authors: Gschwendtner Martina , Bormuth Yannick , Soller Henning , Stein Amanda , Walsworth Ronald L.
Published: July 2024

Quantum sensing technology is already providing value and potential use cases can shape multiple industries. There are four core technologies with promising applications - solid state spins, neutral atoms, superconducting circuits, and trapped ions - which have sensing capabilities across a broad range of physical properties, including magnetic fields, electric fields, rotation, temperature, gravity, time, and pressure. Which quantum sensing technology and implementation type to use depends on the use case, as they measure different properties and are best suited to specific environments. This paper discusses the potential and current applications of the abovementioned quantum sensing technologies through varied use-case studies. They are presented around four specific industries and along different time horizons, emphasizing the need for further development and enhancement that can be achieved over the conventional counterparts. The full power of quantum sensors is not yet known, but they have the potential to create an entire new ecosystem if researchers, start-ups, and industry leaders work together to explore their applications and get them out of the lab. Here, the paper outlines necessary actions and possible avenues for the stakeholders to realize this potential across academia and industry.
Towards a Place-based Approach to Circular Innovation
Authors: Böhm Steffen , Alexander Allen
Published: July 2024

This Letter proposes a place-based approach to circular innovation. The original concept, as discussed by Cherrington et al. (2023), views ‘circular innovation’ as a strategy for sustainable development, focusing on resource efficiency and the regeneration of natural systems. However, we argue that it overlooks the significance of ‘place.’ This Letter argues that local conditions and contexts are crucial for effectively implementing circular innovations and maximizing their benefits. It advocates for tailoring circular strategies to local dynamics, leveraging local resources, and fostering community involvement. We identify five ‘loops’ that define a place-based approach to circular innovation, namely resource loops, social loops, economic loops, ecological loops, and policy loops. We argue that such a place-based approach supports the creation of localized, circular economies, emphasizing the importance of understanding and integrating the unique attributes of different locales into circular economy practices and policies.
POSTOJANOST TEKSTILNIH OTISAKA ODŠTAMPANIH POMOĆU GRAFIČKOG SISTEMA MIMAKI TX-300P-1800MKII NA TOPLOTNO DEJSTVO I TRLJANJE
Authors: Sjerić Nikolina , Kašiković Nemanja , Milošević Rastko
Published: July 2024

U ovom završnom radu je vršeno ispitivanje postojanosti otisaka dobijenih digitalnom štampom. Štampanje je vršeno putem digitalne tehnike – ink džet. Odštampana su odgovarajuća mjerna polja na svakom uzorku. Za uzorke su uzete dvije različite vrste tekstila iste gramaže. Ispitivanja su zasnovana na korišćenju objektivne metode - mjerenjima denzitometrijskih, kolorimetrijskih vrijednosti uzoraka i subjektivne metode. Dobijeni rezlutati su analizirani i međusobno poređeni kako bi se, na osnovu njih, utvrdila odstupanja od referetnih vrijednosti otisaka.
ISTRAŽIVANJE ČOVJEKOVE PERCEPCIJE GRADSKIH PROSTORA NA OSNOVU MENTALNIH MAPA: MAPIRANJE SREMSKIH KARLOVACA
Authors: Gušić Kristina
Published: July 2024

Rad ispituje metodu mentalnog mapiranja kao mogućeg pristupa istraživanju čovjekovog sagledavanja i doživljavanja arhitektonskih prostora i urbanog pejzaža. U cilju razumijevanja odnosa čovjeka i njegove životne sredine, zabilježene su i analizirane mentalne mape stanovnika i posjetilaca Sremskih Karlovaca. Kroz ispitivanje prikaza gradskih prostora na mentalnim mapama ispitanika, istražen je način njihove percepcije grada i interpretirana identifikacija, korišćenje i vrednovanje prostora koji ih okružuju.