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1
Setiawan, Vera Roni, Manihar Situmorang, and Ramlan Silaban. "Identifying preliminary analysis for Developing an Integrated STEM (Science, Technology, Engineering and Mathematics) Learning Model on Chemistry Teaching in High Schools." Proceedings of International Conference on Multidiciplinary Research 6, no. 2 (2024): 334–43. https://doi.org/10.32672/picmr.v6i2.1283.
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Developing a learning model at an early stage requires a needs analysis to identify the needs required by teachers, students and the applicable curriculum. This research aims find out how to implement learning models in schools in order to accommodate the learning needs of the 21st Century. The research subjects were chemistry teachers and students studying chemistry at high school level in Southwest Aceh Regency, Aceh Province. Overall, the research used the ADDIE approach, initial analysis carried out data collection using a questionnaire in the form of a questionnaire distributed via Google Form. The data obtained is the first step in further research. Based on the research results obtained, 64.3% of teachers have implemented learning that stimulates students to think at a higher level. as many as 51.7% of teachers have implemented learning models in teaching chemistry; 78.6% knew something about STEM learning, 7.1% did not know; as many as 57.1% have tried STEM learning but 50% are not satisfied with the results achieved; 85.5% acknowledged difficulties in implementing STEM in the classroom; 50% believe the STEM model influences students' thinking skills; 92.9% need a STEM integrated project learning model book. Meanwhile, of the students who obtained the results: 42.5% stated that they had difficulty understanding chemistry; 92.5% are happy if chemistry learning is connected to the real world; 92.5% stated that school textbooks were a learning resource; 55% experienced learning obstacles based on school learning resources; 90% need a learning model that connects chemical material with the real world.
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Ezhilarasi, P., S. Rajeshkannan, and P. Gokulaprasath. "Smart Health Monitoring System." Journal of Computational and Theoretical Nanoscience 17, no. 5 (2020): 2261–65. http://dx.doi.org/10.1166/jctn.2020.8881.
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This paper proposes a Smart Health Monitoring System (SHMS) which monitors and takes care of patient's health. Nowadays in hospital, taking care of patient is a big task because of growing population and also regular check-ups are not at all possible. The percentage of death rate by only heart attack is 24.8%, which is not higher but these death rate can be reduced by monitoring the condition of patient's heart every second continuously. This can be achieved with the help of a technology called Internet of Things (IoT). The concept of IoT is that it can connect any device with the internet. Here the sensor can measure the heart rate and connects to the internet. Then it will update the status of the patient's heart to the person who wants to monitor the patient. Hence the prevention of death due to heart attack is being introduced. This idea can also be implemented for workers in industry
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Maxsuda, Sag'dullayevna Inatova, Valijanovna Xolmatova Surayyo, and Oybek qizi Orziqulova Sarvinoz. "PEDAGOGICAL FUNDAMENTALS OF ACQUISITION AND USE OF PRINCIPLES AND THEIR SIGNIFICANCE IN MARRIAGE." Results of National Scientific Research 2, no. 5 (2023): 380–84. https://doi.org/10.5281/zenodo.8020858.
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In this article, ways to improve communicative competence in the study of the topic "Using the basics and their importance in life" in high school chemistry classes with the help of interactive methods and ICT tools are presented.
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de Haas, Ricarda. "African diasporic literatures in the virtual space: Narration, interaction and performance in Teju Cole’s Twitter story ‘Hafiz’." Journal of Global Diaspora 3, no. 1 (2022): 39–54. http://dx.doi.org/10.1386/gdm_00023_1.
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African writers from the diaspora as much as from the continent have emphatically embraced the potential of new media technologies. A vast and tightly woven network of literary enthusiasts connects writers, scholars, publishers, journalists and readers, who often interact independently from western publishing houses. Digital diasporic literatures are thus created within multiple cyberplaces that are interlinked. My article focuses on ‘Hafiz’ (2014), a collaborative piece published on Twitter by Teju Cole. Thirty-five voices jointly tell a story, thereby conjuring the illusion of an event that simultaneously takes place in metropolises of Nigeria, South Africa, Europe, the United States and India. With regard to the performative collaboration displayed in ‘Hafiz’, my article discusses how Achille Mbembe’s conceptualization of Afropolitanism ([2010] 2021), the relational approach to digital diasporas by Candidatu and Koen, and concepts of digital literatures can be fruitful for the analysis of new media based literatures.
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Rüschenpöhler, Lilith, and Silvija Markic. "Secondary school students’ acquisition of science capital in the field of chemistry." Chemistry Education Research and Practice 21, no. 1 (2020): 220–36. http://dx.doi.org/10.1039/c9rp00127a.
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Research has shown that students’ science capital has a large impact on their science aspirations and their development of science identities. In this study, we apply the notion of science capital to chemistry education in order to investigate how students make use of science capital in the field of chemistry. We define chemistry capital as a person's resources that help him or her to succeed in the field of chemistry (e.g., parents know chemistry content, sharing chemistry-related activities at home,…). We interviewed 48 secondary school students in Germany and conducted a thematic analysis. It reveals the following. (i) Chemistry capital in the home environment is unevenly distributed. Students who do not have family members who can connect with the mainstream conception of chemistry tend to be concentrated in schools with the lowest entry requirements (Hauptschulen, lower secondary education). Chemistry capital, therefore, tends to be reproduced. (ii) In most cases, families’ chemistry capital translates into students’ individual chemistry capital. This shows up in a multitude of links between families’ chemistry capital and students’ individual chemistry capital. (iii) The German school structures tend to aggravate the existing inequalities: this tends to deprive the students from Hauptschulen of qualified chemistry teachers. (iv) In some exceptional cases, students acquire chemistry capital independently from their families’ capital. They do so either by following chemistry-related YouTube channels or by developing a chemistry identity as part of a general learner identity. In order to reduce the existing inequalities, there is an urgent need to provide Hauptschulen in Germany with qualified teaching staff for chemistry. If this precondition is met, teaching approaches that focus on identity building and engaging students and their parents in a dialogue about chemistry could potentially be fruitful.
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Djarwo, Catur Fathonah, and Lusia Narsia Amsad. "Chemistry Learning Strategies Based on Local Wisdom to Enhance Cultural Awareness and Understanding of Scientific Concepts." International Journal of Integrative Research 3, no. 3 (2025): 151–68. https://doi.org/10.59890/ijir.v3i3.442.
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Chemistry education plays a crucial role in developing students' scientific literacy and critical thinking skills, yet many students struggle to connect abstract chemical concepts to their daily lives. This study aims to explore the effectiveness of local wisdom-based learning strategies in enhancing students’ understanding of chemistry concepts while simultaneously fostering cultural appreciation. The research method used in this study is a Systematic Literature Review (SLR), following the PRISMA framework, to analyze and synthesize findings from 125 journal articles obtained from Scopus, Web of Science, ScienceDirect, SpringerLink, Google Scholar, and IEEE Xplore. After a rigorous selection process, 20 high-quality journal articles were identified as the primary references. The findings of this research indicate that integrating local wisdom into chemistry learning significantly enhances students' conceptual understanding, engagement, and appreciation for science. Studies show that students who learn chemistry through culturally relevant examples demonstrate higher motivation, improved retention rates, and better problem-solving skills compared to those who receive conventional instruction. Additionally, local wisdom-based learning promotes sustainability and environmental awareness, as many traditional practices align with eco-friendly and resource-efficient principles
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Alrammah, Aaya Adil. "Racial Prejudice and the Fear of the other in Amiri Baraka’s Dutchman." International Academic Journal of Humanities 10, no. 2 (2023): 01–06. http://dx.doi.org/10.9756/iajh/v10i2/iajh1003.
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This study focuses on the Racist Theory in Amiri Baraka’s Dutchman, a play that revealed how racial prejudice and fear impacted people's lifestyles in 1964. A modern stage and racial thinking interact to initialise the understanding of races and turn towards individual experiences. Baraka’s Dutchman focuses on the culture within white supremacy that has historically marginalised all other races by representing possible outcomes. This paper studies the work of Lula, who destroys the clay to symbolise the savage destruction of the white man for the cultural identity of black people. Furthermore, it displays the continuation of racial violence that has been rampant since the 1960s. This study registers racial thinking and modern stage interactions, and in doing so, the researcher has adopted a secondary qualitative data collection method. The entire process of this study has been conducted based on information collected from existing resources. Thus, this study is especially applicable for readers since it connects with prejudice and fear. Analysing several types of elements in racial prejudice based on Racist Theory, the result helps to provide a transparent viewpoint.
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Nengsih, Ersa Agusti, Hermansyah Amir, and Dewi Handayani. "PENGEMBANGAN E-MODUL KIMIA BERBASIS INTRODUCTION, CONNECT, APPLY, REFLECT, EXTEND (ICARE) PADA MATERI REAKSI REDOKS." ALOTROP 7, no. 2 (2023): 119–32. http://dx.doi.org/10.33369/alo.v7i2.31004.
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This study is a research and development of ICARE-based chemistry e-modules that aims to determine the feasibility of e-modules, student responses, and improvement of student learning outcomes. The development model used is analysis, design, development, implementation, evaluation (ADDIE). The research was conducted at SMA Negeri 2 Seluma from January to August 2022. The subjects of this study were X IPA 2 and X IPA 3 students in the 2022/2023 school year who were selected based on simple random sampling techniques with a population of 3 classes, which were then tested for normality and homogeneity so that normal and homogeneous classes were obtained, namely X IPA 2 class for small group tests and X IPA 3 for large group tests. The instruments in this study were interview sheets, validation sheets, student response questionnaires, and tests. From the results obtained (1) ICARE-based chemistry e-modules were declared very feasible by media and material experts with a percentage of 98.88% media aspects and 91.25% material aspects, (2) Student responses to ICARE-based chemistry e-modules were in the very good category with an average percentage of 90.23%, and (3) After using ICARE-based chemistry e-modules on redox reaction material, there has been an increase in student learning outcomes as measured by an average N-gain score of 0.69 on moderate criteria. The results of the development of ICARE-based chemistry e-modules are very feasible to use in the learning process and proven to improve student learning outcomes.
 Keywords: e-module, development, ICARE, learning outcomes
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Elvina, Annisa, and Latisma DJ. "Deskripsi Pemahaman Multirepresentasi Kimia Siswa pada Materi Larutan Elektrolit dan Non Elektrolit." Orbital: Jurnal Pendidikan Kimia 6, no. 1 (2022): 1–15. http://dx.doi.org/10.19109/ojpk.v6i1.12009.
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The material in chemistry subjects can be fully understood if the learning emphasizes the macroscopic, sub-microscopic and symbolic levels and links the three levels. The material for electrolyte and non-electrolyte solutions contains abstract concepts. Students only understand concepts that exist macroscopically and memorize concepts sub-microscopically or symbolically on the material, resulting in students having difficulty understanding the material. This study aims to describe the understanding of students' multi-representation of chemistry on the material of electrolyte and non-electrolyte solutions for class X MAN 2 Kota Padang. The research method used is descriptive quantitative. Samples were taken randomly, namely random sampling for class X IPA 6 as many as 34 samples. The instruments used are descriptive tests and interviews, the questions given include 3 levels of representation using Miles & Huberman data analysis techniques and data processing with Microsoft Excel. The results showed that 53% of students could connect the three levels of chemical representation of 6 questions, 44% of students could connect the three levels with 5 questions out of 6 questions and only 3% of students could connect the three levels with 3 questions out of 6 questions. The average understanding of the highest representation is on macroscopic representation because 98% of the number of students who have a very good understanding category, while at the sub-microscopic level only 9% of the number of students who have very good understanding category, and at the symbolic level 44% of the number of students who have very good understanding category.
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Kylkilahti, Eliisa, Sami Berghäll, Minna Autio, et al. "A consumer-driven bioeconomy in housing? Combining consumption style with students' perceptions of the use of wood in multi-storey buildings." Ambio 49, no. 12 (2020): 1943–57. http://dx.doi.org/10.1007/s13280-020-01397-7.
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Abstract Consumer acceptance of new bio-based products plays a key role in the envisioned transition towards a forest-based bioeconomy. Multi-storey wooden buildings (MSWB) exemplify a modern, bio-based business opportunity for enacting low-carbon urban housing. However, there is limited knowledge about the differing perceptions consumers hold regarding wood as an urban building material. To fill this gap, this study explores Finnish students’ perceptions of MSWB relative to their familiarity with wooden residential buildings, and then connects these perceptions to ‘consumption styles.’ Data were collected in the Helsinki metropolitan area via an online questionnaire (n = 531). The results indicate that the aesthetic appearance of MSWB are appreciated most by frugal and responsible consumers, whereas the comfort, environmental friendliness, and longevity of MSWB are important to consumers who identify themselves as ‘thoughtful spenders.’ The study suggests that both environmental and hedonic young consumers already familiar with the use of wood in housing contribute to a successful bioeconomy in the urban context.
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Scerri, Eric R. "Top-down causation regarding the chemistry–physics interface: a sceptical view." Interface Focus 2, no. 1 (2011): 20–25. http://dx.doi.org/10.1098/rsfs.2011.0061.
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This article examines two influential authors who have addressed the interface between the fields of chemistry and physics and have reached opposite conclusions about whether or not emergence and downward causation represent genuine phenomena. While McLaughlin concludes that emergence is impossible in the light of quantum mechanics, Hendry regards issues connected with the status of molecular structure as supporting emergence. The present author suggests that one should not be persuaded by either of these arguments and pleads for a form of agnosticism over the reality of emergence and downward causation until further studies might be carried out.
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Storey, Andrew P., and Gary M. Hieftje. "The Academic Tree of Howard V. Malmstadt: From Early Scientific Exploration to Modern Analytical Chemistry." Applied Spectroscopy 70, no. 12 (2016): 1952–64. http://dx.doi.org/10.1177/0003702816681014.
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Over the last several decades, science has benefited tremendously by the implementation of digital electronic components for analytical instrumentation. A pioneer in this area of scientific inquiry was Howard Malmstadt. Frequently, such revolutions in scientific history can be viewed as a series of discoveries without a great deal of attention as to how mentorship shapes the careers and methodologies of those who made great strides forward for science. This paper focuses on the verifiable relationships of those who are connected through the academic tree of Malmstadt and how their experiences and the context of world events influenced their scientific pursuits. Particular attention is dedicated to the development of American chemistry departments and the critical role played by many of the individuals in the tree in this process.
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Eralita, Norma. "Analisis Keterampilan Proses Sains dalam Praktikum Kimia Fisika." Orbital: Jurnal Pendidikan Kimia 7, no. 2 (2023): 187–96. http://dx.doi.org/10.19109/ojpk.v7i2.19402.
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Physical chemistry practicum is a crucial element in higher education curriculum to develop students' science process skills. The study aims to analyze the skills of science processes in physics chemistry practices in the university environment. Emphasis is given on the ability to make careful observations, plan appropriate experiments, make accurate measurements, analyze data critically, and connect theory with practice in the laboratory. The research method used in this study is qualitative research involving data collection from physical chemistry practicum conducted by students in university laboratories. The research targets were chemical engineering students who received physical chemistry practicum courses at the faculty of industrial technology, Nahdlatul Ulama Al Ghazali University, Cilacap. Research data were collected through practicum observations, interviews, and analysis of student practicum report results. The data were analyzed to evaluate the science process skills developed during practicum, as well as its impact on the understanding of physical chemistry concepts. The results of the analysis show that physics chemistry practicums provide students with practical experience in conducting practicum activities. Students demonstrated the ability of their scientific processes to perform careful observations such as accurate and accurate measurements. Critically analyze data from the results of experiments or experiments such as making the correct table or graph. These skills are intellectual process skills that are very important in studying chemistry.
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Zepeda, Susy. "Xicana/x Indígena Futures: Re-rooting through Traditional Medicines." Feminist Formations 35, no. 1 (2023): 117–31. http://dx.doi.org/10.1353/ff.2023.a902069.
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Abstract: A central thread of this article is to open a dialogue around traditional medicines such as sacred tabaco (tobacco) as it connects to Xicana Indígena ceremonial praxis, Mexican traditional medicine, and decolonial feminist futurities. I've argued elsewhere, as in the case of the 2019 Xicanx Futurity art exhibition, Xicana/x people have created a dignified path to self-determination that honors Indigenous roots and complex familial legacies and lineages across the hemisphere (Zepeda 2022, 141–153). In visual artist Gina Aparicio's installation titled, Ipan Nepantla Teotlailania Cachi Cualli Maztlacoyotl (Caught Between Worlds, Praying for a Better Future), she creates a sacred space for collective prayer in the context of an art exhibit through tobacco ties, intentionally creating a place for pause, reflection, and grounding, before taking the next steps into the larger part of the art installation that evokes a sacred circulo (Tello 2017). These tobacco-filled prayer ties in red cloth, because of their public visibility, became a site of contestation. This essay asks: what are the responsibilities and connections diasporic Mesoamerican peoples have to sacred plant medicine? Knowing that sanación (healing) arrives from working in collaboration with plants, what are the most respectful ways to work with tabaco : tobacco : picietl? What shapes the pathway of self-determination of Xicana/x peoples who are consciously re-rooting? How do we honor madre tierra, plant medicine, and ancestors?
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Kohn, Kathryn P., Sonia M. Underwood, and Melanie M. Cooper. "Energy Connections and Misconnections across Chemistry and Biology." CBE—Life Sciences Education 17, no. 1 (2018): ar3. http://dx.doi.org/10.1187/cbe.17-08-0169.
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Despite the number of university students who take courses in multiple science disciplines, little is known about how they connect concepts between disciplines. Energy is a concept that underlies all scientific phenomena and, as such, provides an appropriate context in which to investigate student connections and misconnections across disciplines. In this study, university students concurrently enrolled in introductory chemistry and biology were interviewed to explore their perceptions of the integration of energy both within and across the disciplines, and how they attempted to accommodate and reconcile different disciplinary approaches to energy, to inform future, interdisciplinary course reform. Findings suggest that, while students believed energy to be important to the scientific world and to the disciplines of biology and chemistry, the extent to which it was seen as central to success in their courses varied. Differences were also apparent in students’ descriptions of the molecular-level mechanisms by which energy transfer occurs. These findings reveal a disconnect between how energy is understood and used in introductory science course work and uncovers opportunities to make stronger connections across the disciplines. We recommend that instructors engage in interdisciplinary conversations and consider the perspectives and goals of other disciplines when teaching introductory science courses.
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Tundo, Pietro. "Preface." Pure and Applied Chemistry 79, no. 11 (2007): vi. http://dx.doi.org/10.1351/pac20077911vi.
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This Special Topic issue on green chemistry pursues the same objectives as the Special Topic issue published in July 2000 and can be considered as its continuation. The articles have been selected (with great difficulty) from the massive and valuable scientific contributions on green chemistry by numerous professors and researchers during the 1st International IUPAC Conference on Green-Sustainable Chemistry held 10-15 September 2006 (for more details on the conference, see Chemistry International, Vol. 29, No. 3, 2007).The wide selection of topics was chosen with the intent to attract industrial researchers and representatives, colleagues from universities, as well as politicians and students who are interested in green and sustainable chemistry.The week-long conference was divided into five topics, each of which included several subtopics. This special issue covers the following topics discussed during the conference:benign syntheses routes (heterogeneous catalysis, new reagents, and catalysis for degradation of pollutants);benign process technology (microwave technology, photochemistry, new regulation devices);use of renewable sources (starch, cellulose, sugar, new detergents, biomass technology); andfuture green energy sources (hydrogen technology, fuel cell technology, biodiesel).All the articles reported in this issue point out a general need for novel green processes which comes from a new paradigm in process and product evaluation that must include environmental and health issues (see Chemistry International, Vol. 29, No. 5, 2007). In order to reach this objective, one priority should be to push for more basic research on chemical reactions related to green chemistry, where our knowledge is far from completion.In recent times, in fact, the difference between sustainable chemistry and green chemistry is becoming more evident. Sustainable chemistry envisages an industrial involvement and promotion with the aim of achieving fewer pollutant processes and more valuable products, maintaining, at the same time, profits. Whereas green chemistry is more innovative because it is not necessarily connected to profits, it involves fundamental aspects and does not aim automatically at an industrial process. There is a great need to create a new type of chemistry focused on a new production system and utilization of chemical derivatives, in order to prepare the younger generation to reach a greener future. Following this scenario, this special issue has been planned with the aim of extending the knowledge on green chemistry, not disregarding, however, the industrial interest.Nowadays, globalization (induced by many factors such as industrial development) pushes the chemistry community to adopt ethical issues. In this respect, green chemistry can achieve, better than sustainable chemistry, the approval of society by teaching students to be confident in science and at the same time by convincing people that it is possible to achieve technological development respecting and taking care of the environment in which we live. In order to realize these objectives, it is important that education and fundamental research are strictly connected, so that democracy and development can also grow and progress side by side. In my personal experience I think that the young generation is very interested and passionate about green chemistry. An example is dott. Fabio Aricò (postdoctorate fellow in my group) who helped me through the organization of the IUPAC conference and the preparation of this special issue with enthusiasm and passion.Pietro TundoConference Chairman
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Ferrins, Lori, Evijola Llabani, and Christine Dunne. "IUPAC and IYCN: Forging New Connections to Support Younger Chemists Worldwide." Chemistry International 40, no. 3 (2018): 11–13. http://dx.doi.org/10.1515/ci-2018-0305.
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Abstract The International Younger Chemists Network (IYCN) is an organization that aims to connect chemists who are in the early stages of their career, including but not limited to graduate school, postdoctoral associates, chemists within five years of their terminal degree, and chemists newly transitioning into the field. Our core objective is to reach like-minded scientists globally and create a platform for scientific exchange. With a focus on building a worldwide network, we strive to spread scientific knowledge, mentorship, and encourage a passion for chemistry.
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Austin, Ara C., Nicholas B. Hammond, Nathan Barrows, Deena L. Gould, and Ian R. Gould. "Relating motivation and student outcomes in general organic chemistry." Chemistry Education Research and Practice 19, no. 1 (2018): 331–41. http://dx.doi.org/10.1039/c7rp00182g.
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A central tenet of self-regulated learning theories is that students are motivated towards learning in order to self-regulate. It is thus important to identify student motivations in order to inform efforts to improve instructional strategies that encourage self-regulation. Here we describe a study aimed at characterizing the important motivation factors for students taking general organic chemistry, and how they connect to, and correlate with student performance. A cross-sectional study was conducted involving 2648 undergraduate student participants at two institutions over five semesters and four instructors. Motivation was measured using the Organic Chemistry Motivation Survey (OCMS), a modified form of Glynnet al.(2011)'s Science Motivation Questionnaire II (SMQ-II). The results suggest that the students were highly motivated towards earning a high grade, but that this grade motivation correlated only weakly with performance. Other intrinsic and extrinsic motivation factors were found to be low, suggesting that the students perceived organic chemistry to have little relevance to their interests and careers. However, student performance was strongly correlated with self-efficacy, and, to a lesser extent, self-determination. This finding implies that high-performing students tended to be self-regulated learners who are not motivated primarily by the relevance of the course content. Alternate sources of motivation that can drive self-regulation are discussed.
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Vula, Eda, and Fatlume Berisha*. "Using Algebraic Manipulations and Analogical Transformations to Problem-Solving of Contextual Chemistry Problems." European Journal of Educational Research 11, no. 3 (2022): 1781–96. http://dx.doi.org/10.12973/eu-jer.11.3.1781.
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<p style="text-align: justify;">Algebraic knowledge transfer is considered an important skill in problem-solving. Using algebraic knowledge transfer, students can connect concepts using common procedural similarities. This quasi-experimental study investigates the influence of algebraic knowledge in solving problems in a chemistry context by using analogical transformations. The impact of structured steps that students need to take during the process of solving stoichiometric problems was explicitly analyzed. A total of 108 eighth-grade students participated in the study. Of the overall number of students, half of them were included in the experimental classes, whereas the other half were part of the control classes. Before and after the intervention, contextual problems were administered twice to all the student participants. The study results indicate that the students of the experimental classes exposed to structured steps in solving algebraic problems and the procedural transformations scored better results in solving problems in mathematics for chemistry compared to their peers who did not receive such instruction. Nevertheless, the result shows that although the intervention was carried out in mathematics classes, its effect was more significant on students' achievements in chemistry. The findings and their practical implications are discussed at the end of the study.</p>
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He, Xingrui, Zhen Li, Xiao-Tao Zhuo, Zi Hui, Tian Xie, and Xiang-Yang Ye. "Novel Selective Histone Deacetylase 6 (HDAC6) Inhibitors: A Patent Review (2016-2019)." Recent Patents on Anti-Cancer Drug Discovery 15, no. 1 (2020): 32–48. http://dx.doi.org/10.2174/1574892815666200217125419.
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Background: Many human diseases are associated with dysregulation of HDACs. HDAC6 exhibits deacetylase activity not only to histone protein but also to non-histone proteins such as α- tubulin, HSP90, cortactin, and peroxiredoxin. These unique functions of HDAC6 have gained significant attention in the medicinal chemistry community in recent years. Thus a great deal of effort has devoted to developing selective HDAC6 inhibitors for therapy with the hope to minimize the side effects caused by pan-HDAC inhibition. Objective: The review intends to analyze the structural feature of the scaffolds, to provide useful information for those who are interested in this field, as well as to spark the future design of the new inhibitors. Methods: The primary tool used for patent searching is SciFinder. All patents are retrieved from the following websites: the World Intellectual Property Organization (WIPO®), the United States Patent Trademark Office (USPTO®), Espacenet®, and Google Patents. The years of patents covered in this review are between 2016 and 2019. Results: Thirty-six patents from seventeen companies/academic institutes were classified into three categories based on the structure of ZBG: hydroxamic acid, 1,3,4-oxadiazole, and 1,2,4-oxadiazole. ZBG connects to the cap group through a linker. The cap group can tolerate different functional groups, including amide, urea, sulfonamide, sulfamide, etc. The cap group appears to modulate the selectivity of HDAC6 over other HDAC subtypes. Conclusion: Selectively targeting HDAC6 over other subtypes represents two fold advantages: it maximizes the pharmacological effects and minimizes the side effects seen in pan-HDAC inhibitors. Many small molecule selective HDAC6 inhibitors have advanced to clinical studies in recent years. We anticipate the approval of selective HDAC6 inhibitors as therapeutic agents in the near future.
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Affeldt, Fiona, Sakari Tolppanen, Maija Aksela, and Ingo Eilks. "The potential of the non-formal educational sector for supporting chemistry learning and sustainability education for all students – a joint perspective from two cases in Finland and Germany." Chemistry Education Research and Practice 18, no. 1 (2017): 13–25. http://dx.doi.org/10.1039/c6rp00212a.
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Non-formal education has been suggested as becoming more and more important in the last decades. As the aims of non-formal education are broad and diverse, a large variety of non-formal learning activities is available. One of the emerging fields in many countries, among them Finland and Germany, has been the establishment of non-formal laboratory learning environments. These laboratories were established in universities and research institutes to aim at enriching opportunities for primary and secondary school students to do more and more intense practical work,e.g.in chemistry. The primary rationale of these laboratories, in the beginning, was mainly to raise students’ interest in the fields of science and engineering, possibly inspiring them to pursue a career in these fields. However, recently the movement has started offering more programs aiming at all learners, but especially those students who are sometimes neglected in traditional science education in the formal sector. A focus on all learners is suggested to help raise students’ level of scientific literacy when connecting practical science learning with the societal and environmental perspectives of science. Chemistry learning connected to sustainability issues offers many contemporary topics that are often not yet part of the chemistry formal curriculum but can easily form contexts for non-formal learning. Because of its flexible character, non-formal education can help implementing aspects of sustainability into chemistry education and also can take a gander at the growing heterogeneity of today's students. This paper derives a joint perspective from two non-formal chemistry education initiatives from Finland and Germany focusing education for sustainability for both talented and educationally disadvantaged students in the foreground of a more general perspective on non-formal and sustainability education in chemistry.
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Hussaini, Mohammad Waseq. "Study of Citizenship Rights of the Disabled in the Field of the Urban Environment and in the Light of Afghanistan's Urban Planning Law." Journal of Environmental and Agricultural Studies 4, no. 3 (2023): 22–32. http://dx.doi.org/10.32996/jeas.2023.4.3.4.
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In light of Afghan environmental legislation and policy, the goal of this study is to analyze the citizenship rights of individuals with disabilities in the urban environment. It examines the issues faced by the disabled, particularly the physically challenged, who live in Afghanistan's cities in order to achieve this goal. The government's existing laws and regulations also include preparing for these issues. A descriptive-analytical approach has been adopted in the investigation. In this regard, the researcher has utilized the library study method to explain the concepts and give a theoretical framework to assess the course of domestic legislation after evaluating the development of domestic and international laws. This article comes to the conclusion that the physical and administrative requirements of disabled people cannot be met in Afghan cities. Think about the sidewalks. In reality, a wheelchair user is unable to use the sidewalks. Wheelchair users' rights have been violated as a result of the obstacles that the town has put in place to keep motorcycles off the pavements. Think about the sidewalks; in reality, a wheelchair user cannot utilize them. The right of wheelchair users has essentially been infringed due to the obstructions put in place by the municipality to prevent motorcycle riders from using the sidewalks. There are few organizations in the road and construction engineering sector, particularly in government departments, that have measured the essential facilities and measures for the disabled in their structures. The law of motion is one of the acknowledged tenets among philosophers. They hold the view that everything in the universe is in motion and that each living thing is gradually evolving to realize its potential. Therefore, all facets of society should have access to the amenities required for advancement. This rule applies to everyone, including those with disabilities, and the urban environment must be created and modified in a way that allows them to utilize all of its amenities. The road system in every city is what connects all of the metropolitan areas, and by making it accessible to people with disabilities, many of their difficulties are resolved. In cities, disabled persons are assessed. The necessary design requirements for people with disabilities are then presented.
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Gribben, Jordan, Timothy R. Wilson, and Mark E. Eberhart. "Unicorns, Rhinoceroses and Chemical Bonds." Molecules 28, no. 4 (2023): 1746. http://dx.doi.org/10.3390/molecules28041746.
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The nascent field of computationally aided molecular design will be built around the ability to make computation useful to synthetic chemists who draw on their empirically based chemical intuition to synthesize new and useful molecules. This fact poses a dilemma, as much of existing chemical intuition is framed in the language of chemical bonds, which are pictured as possessing physical properties. Unfortunately, it has been posited that calculating these bond properties is impossible because chemical bonds do not exist. For much of the computational-chemistry community, bonds are seen as mythical—the unicorns of the chemical world. Here, we show that this is not the case. Using the same formalism and concepts that illuminated the atoms in molecules, we shine light on the bonds that connect them. The real space analogue of the chemical bond becomes the bond bundle in an extended quantum theory of atoms in molecules (QTAIM). We show that bond bundles possess all the properties typically associated with chemical bonds, including an energy and electron count. In addition, bond bundles are characterized by a number of nontraditional attributes, including, significantly, a boundary. We show, with examples drawn from solid state and molecular chemistry, that the calculated properties of bond bundles are consistent with those that nourish chemical intuition. We go further, however, and show that bond bundles provide new and quantifiable insights into the structure and properties of molecules and materials.
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Ranamalla, Saketh Reddy, Alina Silvia Porfire, Ioan Tomuță, and Manuela Banciu. "An Overview of the Supramolecular Systems for Gene and Drug Delivery in Tissue Regeneration." Pharmaceutics 14, no. 8 (2022): 1733. http://dx.doi.org/10.3390/pharmaceutics14081733.
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Tissue regeneration is a prominent area of research, developing biomaterials aimed to be tunable, mechanistic scaffolds that mimic the physiological environment of the tissue. These biomaterials are projected to effectively possess similar chemical and biological properties, while at the same time are required to be safely and quickly degradable in the body once the desired restoration is achieved. Supramolecular systems composed of reversible, non-covalently connected, self-assembly units that respond to biological stimuli and signal cells have efficiently been developed as preferred biomaterials. Their biocompatibility and the ability to engineer the functionality have led to promising results in regenerative therapy. This review was intended to illuminate those who wish to envisage the niche translational research in regenerative therapy by summarizing the various explored types, chemistry, mechanisms, stimuli receptivity, and other advancements of supramolecular systems.
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Akın, Fatma Nur, and Esen Uzuntiryaki-Kondakci. "The nature of the interplay among components of pedagogical content knowledge in reaction rate and chemical equilibrium topics of novice and experienced chemistry teachers." Chemistry Education Research and Practice 19, no. 1 (2018): 80–105. http://dx.doi.org/10.1039/c7rp00165g.
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We examined the interactions among pedagogical content knowledge (PCK) components of novice and experienced chemistry teachers in teaching reaction rate and chemical equilibrium topics in this qualitative multiple-case design study. For this aim, three chemistry teachers who had different levels of teaching experience in chemistry teaching were selected through a process of purposeful sampling. Multiple types of data were gathered through more than two months. In order to collect and triangulate data, a card-sorting activity, a Content Representation (CoRe) tool, semi-structured interviews, observation of instruction, and field notes were utilized. Data were analyzed through three approaches: in-depth analysis of explicit PCK, the enumerative approach, and constant comparative methods. The results revealed eight characteristics of the interactions of the PCK components: (a) the novice teacher's orientations towards science, in contrast to the experienced teachers’, were more broad and non-specific, which impeded the interactions among the components, (b) the interplay of the PCK components was idiosyncratic and topic specific, (c) the novice teacher's PCK maps were fragmented while the experienced teachers’ PCK maps were integrated, (d) the experienced teachers, in contrast to the novice teacher, interacted more than two PCK components in most of their teaching fragments, (e) knowledge of learner, knowledge of curriculum and knowledge of instructional strategies were central in the interplays of all teacher maps, (f) the experienced teachers were more successful than the novice teacher in translating their knowledge into practice in terms of the integration among PCK components, (g) teacher self-efficacy appeared to play a role in their use of PCK components and constructing interactions among them, and (h) all teachers taught the same topics with similar lesson plans and the same instructional materials; however, they differed in terms of how they connect the PCK components. Implications and suggestions for teacher education and science education research are presented.
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Rahayu, Dea Santika, Dita Puji Rahayu, and Meili Yanti. "Development of a Mental Model Diagnostic Test using Predict, Observe, Explain (TDM-POE) on Voltaic Cell Materials." Journal of Tropical Chemistry Research and Education 6, no. 1 (2024): 64–71. http://dx.doi.org/10.14421/jtcre.2024.61-06.
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Understanding chemical concepts as a whole show that students can connect three levels of chemical representation. The three levels in chemical representation are related and reflected in students' mental models. A teacher must know the student's mental model as a reflection of learning. This research aims to develop an instrument for students' mental models on voltaic cell submaterials using the prediction-observation-explanation (TDM-POE) mental model diagnostic test. The method used in this research is the research and development method using the Analysis, Design, Develop, Implement, and Evaluate (ADDIE) development model. The instrument was validated by five validators consisting of four lecturers in the Department of Chemistry Education and one chemistry teacher at school. Validity is determined by content validity response. Then, the instrument was tested on class XII students who had received learning about voltaic cells. The instrument consists of four questions for four concepts: voltaic cell construction, calculating standard cell potential values, voltaic cells in alkaline batteries, and corrosion phenomena. Each question consists of 3 stages, namely, the first stage contains questions about predicting phenomena (predict), the second stage contains video or image observations (observe), and the third stage contains detailed explanations (explanation). The validation results show that the validity of the TDM-POE instrument obtained a score of 0.99, which is categorized as valid. So, the TDM-POE instrument can be used to understand chemical concepts.
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Talbert, Lance E., James Bonner, Kiana Mortezaei, Cybill Guregyan, Grace Henbest, and Jack F. Eichler. "Revisiting the use of concept maps in a large enrollment general chemistry course: implementation and assessment." Chemistry Education Research and Practice 21, no. 1 (2020): 37–50. http://dx.doi.org/10.1039/c9rp00059c.
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In an effort to improve student conceptual understanding and help students better connect pre-existing knowledge to new ideas, a concept map assignment was implemented in a first-year college level general chemistry course. This implementation included a quasi-experiment that was carried out in discussion group recitation sections within a third-quarter general chemistry course. Students enrolled in a single section of the course were divided into two groups in which a concept map treatment was compared to a control group that completed short journal entries. Comparison of a concept inventory post-test using an independent samples t-test indicates students in the concept map treatment appear to perform better than the students in the journal control group (t = 2.34, mean difference = 0.844, p < 0.05). However, a multi-variable regression analysis in which the concept inventory post-test scores were compared between the treatment and control groups, while traits related to incoming academic preparation were held constant, suggests there was no significant difference in performance (unstandardized b = 0.222, p = 0.540). The quality of the students’ concept maps was also evaluated and correlated to student performance on the concept inventory, and it appears students who were better at concept mapping made greater gains in conceptual understanding (Pearson's r = 0.295, p < 0.05). When the relationship between the quality of concept mapping and concept inventory post-test was determined while holding constant covariates related to incoming academic preparation, the unstandardized B coefficient was positive, but was not significant at the p = 0.05 level (unstandardized b = 0.215, p = 0.134) This study does not provide unequivocal evidence that a concept map treatment leads to greater gains in conceptual understanding compared to a control population, or that students with better concept mapping skills performed better on the concept inventory instrument. Nevertheless, a template for implementing a concept map assignment in a large enrollment course is provided, and the results presented herein might prompt chemistry instructors to consider including concept map assignments in their instructional toolbox.
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Zuin, Vânia G. "Preface." Pure and Applied Chemistry 85, no. 8 (2013): iv. http://dx.doi.org/10.1351/pac20138508iv.
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The 4th International IUPAC Conference on Green Chemistry (ICGC-4) was held in Foz do Iguaçu, Brazil, 25-29 August 2012, under the auspices of IUPAC and the Brazilian Chemical Society (SBQ), with the theme “Exchanging experiences towards a sustainable society taking care of natural resources in their socio-economic development”. It is important to understand the historical context of ICGC-4 as part of a series that started in 2006 in Dresden, Germany. As observed by Prof. Tundo, the Chair of the first ICGC, green chemistry is “innovative because it is not necessarily connected to profits, it involves fundamental aspects and does not aim automatically at an industrial process. There is a great need to create a new type of chemistry focused on a new production system and utilization of chemical derivatives, in order to prepare the younger generation to reach a greener future.” ICGC-2 occurred in 2008 aboard the ship “Alexander Radishev” travelling from Moscow to St. Petersburg, Russia, and was centered around a number of fundamental and applied topics on green chemistry. ICGC-3 was held in Ottawa, Canada, 2010, with the theme “The Road to Greener Industry”. Bringing together academia and industry to exchange ideas about green chemistry was the purpose of the meeting.ICGC-4 also included all areas and sectors of chemistry worldwide (academia, industry, government, and chemistry societies) and focused on broad topics such as benign synthesis/process, green chemistry for energy/production, chemicals from renewable resources, green engineering, education in green chemistry, and engineering and policy. It attracted around 600 participants from 4 continents, especially young researchers. The event included 10 plenary lectures and 15 invited talks conducted by the most prominent chemists from all over the world in this field, 4 short courses, 15 parallel sessions with 4 oral presentations each, 3 technical parallel sessions, 4 roundtables, 2 poster sessions, and a book release (Capes at Rio+20).The organizers of ICGC-4 would like to thank the great number of sponsors who generously supported the event and the members of all committees for their immense contributions. Special thanks are extended in particular to Profs. Pietro Tundo and Buxing Han for their outstanding efforts, as well as Profs. Patricia Vazquez, Liliana Mammino, Arlene Corrêa, Vitor Ferreira, and Fernando Galembeck, all of whom contributed to the remarkable success of ICGC-4 (for more details, see www.ufscar.br/icgc4).The nine papers in this issue of Pure and Applied Chemistry are mostly contributions from plenary speakers and represent some of the topics discussed in the event. The tradition and involvement with such a fundamental and innovative field will continue in 2014 with ICGC-5, which will be held in Durban, South Africa.Vânia G. ZuinSecretary General
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Torreão Vasconcelos Gaião, Otávio, Liliane Da Silva Coelho Jacon, Ana Carolina Garcia de Oliveira, and Irene Cristina De Mello. "A mediação de diálogos com heterogeneidade de linguagens entre Formadores de Professores e o processo de construção de um aplicativo móvel para o Ensino de Química / Mediation Dialogues with Heterogeneity of Language among Teacher Trainers and the Process of Construction of an Application for the Teaching of Chemistry." Revista Internacional de Aprendizaje en Ciencia, Matemáticas y Tecnología 3, no. 1 (2016): 1–11. http://dx.doi.org/10.37467/gka-revedumat.v3.556.
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ABSTRACTThe possibility to access and produce information using mobile devices connected to the Internet and wireless connection is revolutionizing the functioning of various institutions, among them, the school. Nevertheless, the arrival of this technology requires teacher's skills, as it challenges them to rethink their way of teaching for effective learning. This article presents partial results of an exploratory study, based on Bakhtin's theoretical framework, who aimed at analyzing the “pluridirecionadas” languages of interaction between a professor for Chemistry students who are aiming for a teaching career and a research professor of computer science and education, to discuss and reflect on the use of mobile devices in chemical education. These meeting enabled the emergence of new ideas and presents an application (under construction) called “Virtual Chemistry Laboratory” which simulates chemical experiments focusing on precipitation reactions in the study of stoichiometric ratio.RESUMOA possibilidade de acessar e produzir informações utilizando dispositivos móveis com acesso à Internet e conexão sem fio está revolucionando o funcionamento de diversas instituições, entre elas, a escola. No entanto, a chegada dessa tecnologia exige habilidades do professor, desafiando-o a reformular a sua prática de ensino para uma efetiva aprendizagem. Este artigo apresenta os resultados parciais de uma pesquisa exploratória, baseada nos pressupostos teóricos de Bakhtin, que teve por objetivo analisar as linguagens pluridirecionadas da interação dialógica entre uma formadora de professores de química e uma pesquisadora de informática e educação, visando discutir e refletir sobre o emprego da mobilidade na educação química. Estes encontros possibilitaram a emersão de novas ideias e, decorrente destas reflexões, apre-senta um aplicativo (em fase de construção) intitulado “Laboratório Virtual de Química” que simula a realização de expe-rimentos químicos focando reações de precipitação no estudo das relações estequiométricas. Contacto principal: liliane285@hotmail.com
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S, Regina. "Social Perspective in the Works of Thilakavathi, IPS." International Research Journal of Tamil 4, S-3 (2022): 16–21. http://dx.doi.org/10.34256/irjt22s33.
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There are many writers in literature who reflect on society. These contemporary literary creations talk about society and the glitches that have arisen in society. But they point out only the shortcomings in the society except few who offer solutions to solve them. In that perspective, Thilakavathi has been expressing various thoughts connected to society in her works. She has been involved in writing poetry in Tamil literature and started writing short stories. The purpose of this research paper is to illustrate how Thilakavathi having worked in the police force and happened to witness misfortunes that are happening in the society volunteered to write, create works so as to reform the society, listen to the grievances of the people to protect them, and live up to the ethical responsibilities.
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Karonen, Maarit, Mari Murtonen, Ilona Södervik, Marianna Manninen, and Mikko Salomäki. "Heuristics Hindering the Development of Understanding of Molecular Structures in University Level Chemistry Education: The Lewis Structure as an Example." Education Sciences 11, no. 6 (2021): 258. http://dx.doi.org/10.3390/educsci11060258.
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Understanding chemical models can be challenging for many university students studying chemistry. This study analysed students’ understanding of molecular structures using the Lewis structure as a model, and examined what hinders their understanding. We conducted pre- and post-tests to analyse students’ conceptions and changes in them. The measures contained multiple-choice questions and drawing tasks testing their understanding of concepts, such as polarity, geometry, charge or formal charge and expanded octet. The pre-test revealed a lack of knowledge and several misconceptions in students’ prior knowledge. For example, the concept of polarity was well-known, but the combination of polarity and geometry appeared to be difficult. For some students, the representation of molecules was intuitive and lacking a systematic approach. Certain students used mnemonics and draw ball-and-stick models connected to surficial representations. After the chemistry courses, the conceptions and drawings had generally changed, and the level of the students’ knowledge increased markedly. Although, fewer ball-and-stick models were drawn in the post-test, some students still used them. The main result was that students who drew ball-and-stick models in the pre-test were less capable of drawing the correct Lewis structures with electrons in the post-test. In addition, heuristics seem to hinder learning and some concepts, such as resonance, remained difficult. This is probably due to the fact that understanding molecular structures requires systemic understanding, where several matters must be understood at the same time. Our study highlights that the understanding of molecular structures requires conceptual change related to several sub-concepts.
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Naboichenko, E. S., and T. V. Valieva. "SELF-ATTITUDE AND COPING BEHAVIOR AS CONDITIONS OF WELL-BEING AND ACTIVITY OF MEDICAL WORKERS IN OLD AGE." PERSONALITY IN A CHANGING WORLD: HEALTH, ADAPTATION, DEVELOPMENT 10, no. 1 (36) (2022): 35–47. http://dx.doi.org/10.23888/humj202210135-47.
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Theoretical analysis of the problem connected with the search for the psychological conditions of maintaining social activity of elderly shows that self-attitude and coping self–control can be considered as the internal conditions of vital productivity in the late adulthood. The article deals with the identification of the age changes of self-attitude and coping of medical workers who actively continue their professional activity in order to describe the psychological conditions of subjective well-being at the advanced age. Our empirical research involved employees of Yekaterinburg and Nizhny Tagil healthcare institutions (aged 32 to 74, N = 47). To describe self-relation, the author applied the personal differential technique. E. Heim's method was applied to diagnose coping mechanisms. The level of well-being was identified by the means of the asthenia, hospital anxiety and depression scale and the scale of psychological stress. It was demonstrated that employees of medical institutions working in old age preserve subjective well-being. Among medical professionals under 40 years of age self–respect is connected to emotional coping (p < 0.01). At the older age personal activity is connected to coping self-control (p < 0.05). In the agegroup between 40 and 60 copingis not connected to self–attitude.
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Rokach, Ami, and Karalyn MacFarlane. "Abused Children and their Relationships as Adults." Psychology and Mental Health Care 5, no. 3 (2021): 01–14. http://dx.doi.org/10.31579/2637-8892/144.
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Intimate relationships are not just between lovers, but is also present in parenting as well as the individual’s relationship with the larger family and kin. This article sheds light on those who underwent abuse and have consequently been marked for life and in many areas of their personhood, their ability to relate, and to intimately connect with others.
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Jeyaraj, M., A. Indhuleka, and C. Arunpaul. "Investigation of Water Quality Index of River Noyyal and Its Connected Ponds Coimbatore Tamilnadu India." Oriental Journal of Chemistry 35, no. 3 (2019): 1125–31. http://dx.doi.org/10.13005/ojc/350328.
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This investigation deals with the determination of various physico-chemical and biological parameters of surface water quality of river Noyyal and its connected ponds at Coimbatore, India. Based on their significance, the sampling locations were selected. There are five sampling locations were selected like river Noyyal at sorce (S1), Perur Lake, (S2), Ukkadam Pond (S3), Singanallur Lake (S4) and Sulur Pond (S5), and samples were collected from each locations at river Noyyal basin in and around Coimbatore district. The surface water quality index determination is prerequisite and essential. In this present work, from different methods of water quality determination, the most commonly used index of National Sanitation Foundation water quality index (NSF-WQI) has been followed. The physico-chemical and biological parameters such as dissolved oxygen, faecal coliforms counts, pH, biochemical oxygen demand, phosphate, nitrates, turbidity, and total dissolved solids were investigated. Except in Noyyal river at source (S1) all the measured parameters are showed to be very high compared to limits suggested by WHO particularly during summer season and thereby it is not suitable for public use.
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Pandian, Mary Sugirtha. "The poet Thiyaru combines the aesthetics of femininity with personality." International Research Journal of Tamil 4, SPL 1 (2022): 241–52. http://dx.doi.org/10.34256/irjt22s134.
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There is no poet who does not admire femininity. Beginning with the Lord, literary poets, jurists, and writers all praised the woman's pride as a woman of great genius. Bharathi, who has changed her name to Padithanda Pattin and is looking at Padithanda, is emerging as a newcomer. She has gone to the pinnacle of leadership, not just leadership. The poet portrays the old as the new, the new as the new, the new as the new, the new as the new, the new as the new. He points out that the creation of civilization in the world is by women. The poet Thiyaru says that love is a sacred bond between a man and a woman that are exchanged through the eyes, mixed with the senses, stimulated by the thoughts and connected by the heart. He has enriched tender love and created the character of love in poetry in a way that amazes everyone. He points out that the bar is pervasive in the eyes of the woman. His poems are a testament to the fact that the eye can have strange effects. He feeds on the dead and speaks of the sanctity of resurrected motherhood. In her death she reveals the distractions of the son who received the love of motherhood. The poet Thearu mixes the expressive aesthetics of femininity with poetry.
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ANAMOVA, Rushana R., and Lidiya G. NARTOVA. "GEOMETRIC SPATIAL ABILITY AS AN ELEMENT OF COGNITIVE LEARNING PROCESS." Periódico Tchê Química 16, no. 32 (2019): 542–50. http://dx.doi.org/10.52571/ptq.v16.n32.2019.560_periodico32_pgs_542_550.pdf.
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University professors more and more often face serious problems of learning geometry and graphic disciplines. In this regard, it is very relevant to obtain a maximum efficient method to teach geometry and graphic disciplines. The purpose of the study is to test the hypothesis that the cause of problems arising in the process of mastering the geometric and graphic disciplines is the violation of continuity of the educational material and the low level of spatial ability of students. In the research, interviewing method (testing) and statistic method have been applied to process the results. It is established that spatial imagination helps a person to perceive the shape of geometric objects by involving him/her into the cognitive process of feeling and control of spatial objects. Students who learned in school technical drawing the same as students who did not learn experience difficulties in mastering the geometric and graphic disciplines. For students who learned technical drawing in schools, the cause of bad retention of the material of the geometric and graphic discipline is low geometric spatial ability. For students who did not learn technical drawing in school, but who demonstrated a high geometric spatial ability, the cause of difficulties in the retention of the geometric and graphic disciplines are connected with the violation of continuity of the educational material. To effectively teach the geometric and graphic disciplines, it is necessary to apply methods of developments of the geometric spatial ability and to form the content of discipline using the principle of continuity.
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Zwolińska, Bożena, Agnieszka Anna Tubis, Norbert Chamier-Gliszczyński, and Mariusz Kostrzewski. "Personalization of the MES System to the Needs of Highly Variable Production." Sensors 20, no. 22 (2020): 6484. http://dx.doi.org/10.3390/s20226484.
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The new generation Manufacturing Executions System (MES) is considered as one of the most important solutions supporting the idea of Industry 4.0. This is confirmed by research conducted among companies interested in the implementation of the Industry 4.0 concept, as well as the publications of researchers who study this issue. However, if MES software is a link that connects the world of machines and business systems, it must take into account the specifics of the supported production systems. This is especially true in case of production systems with a high level of automation, which are characterised by flexibility and agility at the operational level. Therefore, personalization of the MES software is proposed for this class of production systems. The aim of the article is to present the MES system personalization method for a selected production system. The proposed approach uses the rules of Bayesian inference and the area of customisation is the technological structure of production, taking into account the required flexibility of the processes. As part of the developed approach, the variability index was proposed as a parameter evaluating the effectiveness of the production system. Then, the results of evaluation of the current system effectiveness by use of this index are presented. The authors also present the assumptions for the developed MES personalization algorithm. The algorithm uses the rules of Bayesian inference, which enable multiple adjustments of the model to the existing environmental conditions without the need to formulate a new description of reality. The application of the presented solution in a real facility allowed for determining production areas which are the determinants of system instability. The implementation of the developed algorithm enabled control of the generated variability in real time. The proposed approach to personalization of MES software for a selected class of production systems is the main novelty of the presented research and contributes to the development of the described area of research.
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Green, Harry Jacob, Olivia Katherine O'Shea, Helen Louise Philpott, and Nik Newland. "An exploratory, randomised, crossover study to investigate the effect of nicotine on cognitive function in healthy adult smokers who use an electronic cigarette, after a period of smoking abstinence: study protocol." International Journal of Clinical Trials 9, no. 2 (2022): 136. http://dx.doi.org/10.18203/2349-3259.ijct20221114.
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<p><strong>Background:</strong> Despite the known harmful effects of cigarette smoking, many individuals continue to smoke. Published scientific evidence suggests that smoking can influence various physiological and psychological functions (including effects on cognitive function, body weight and emotion). For some smokers, the loss of such effects have been cited as barriers to cigarette smoking cessation and the deficits in such effects may contribute to resumption of smoking post quitting. Whilst not positioned as cigarette cessation devices, the effect of e-cigarettes (and other potentially reduced risk alternatives to cigarette smoking) on such functions has not been widely researched. Such information would provide support for the proposition that smokers seeking alternatives may find e-cigarettes a satisfactory substitute for conventional cigarettes.</p><p><strong>Methods:</strong> This randomised, partially blinded, crossover study will test the hypothesis that acute nicotine delivery via an e-cigarette can influence cognitive parameters including sustained attention, episodic memory, working memory and executive function to the same extent as a combustible cigarette after a period of nicotine abstinence in current smokers. To determine participants’ cognitive ability, the study will utilise the Cambridge Neuropsychological Test Automated Battery (CANTAB) Connect Profile Software (CANTAB® www.cantab.com). Up to 40 current smokers will be recruited into the study.</p><p><strong>Conclusions:</strong> The data from this trial will be a valuable addition to the growing body of literature assessing the impact of RRPs for existing smokers.</p><p><strong>Trial registration: </strong>This study is registered with the ISRCTN registry, number ISRCTN35376793.</p>
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Green, Harry Jacob, Olivia Katherine O'Shea, Helen Louise Philpott, and Nik Newland. "An exploratory, randomised, crossover study to investigate the effect of nicotine on cognitive function in healthy adult smokers who use an electronic cigarette, after a period of smoking abstinence: study protocol." International Journal of Clinical Trials 9, no. 2 (2022): 136. http://dx.doi.org/10.18203/2349-3259.ijct20221114.
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<p><strong>Background:</strong> Despite the known harmful effects of cigarette smoking, many individuals continue to smoke. Published scientific evidence suggests that smoking can influence various physiological and psychological functions (including effects on cognitive function, body weight and emotion). For some smokers, the loss of such effects have been cited as barriers to cigarette smoking cessation and the deficits in such effects may contribute to resumption of smoking post quitting. Whilst not positioned as cigarette cessation devices, the effect of e-cigarettes (and other potentially reduced risk alternatives to cigarette smoking) on such functions has not been widely researched. Such information would provide support for the proposition that smokers seeking alternatives may find e-cigarettes a satisfactory substitute for conventional cigarettes.</p><p><strong>Methods:</strong> This randomised, partially blinded, crossover study will test the hypothesis that acute nicotine delivery via an e-cigarette can influence cognitive parameters including sustained attention, episodic memory, working memory and executive function to the same extent as a combustible cigarette after a period of nicotine abstinence in current smokers. To determine participants’ cognitive ability, the study will utilise the Cambridge Neuropsychological Test Automated Battery (CANTAB) Connect Profile Software (CANTAB® www.cantab.com). Up to 40 current smokers will be recruited into the study.</p><p><strong>Conclusions:</strong> The data from this trial will be a valuable addition to the growing body of literature assessing the impact of RRPs for existing smokers.</p><p><strong>Trial registration: </strong>This study is registered with the ISRCTN registry, number ISRCTN35376793.</p>
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Panchenko, Anatoly M. "Literary Circle of Yunkers of the Nikolaev Engineering School (1906–1912)." Observatory of Culture 20, no. 5 (2023): 536–48. http://dx.doi.org/10.25281/2072-3156-2023-20-5-536-548.
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Due to the lack of studies on the history of the literary circle of the Nikolaev Engineering School, this article is the first to examine its creation and functioning. The aim is to analyze the main forms of activity of the literary circle of this military-educational institution. In order to achieve this goal, data from the annual reports of the Nikolaev Engineering Academy and the school for the academic years 1906—1912 and other pre-revolutionary printed sources were collected. The results obtained show that a positive role in the organisational, library, publishing and methodological assistance to the circle was played by the command of the academy and the school, teaching, administrative and drill staff (N.A. Kryukov, F.I. Zubarev, V.V. Yakovlev, N.N. Polilov, V.F. Naidenov, etc.). This study has expanded the idea of the pedagogical activity of the famous Russian literary scholar, bibliographer, pedagogue F.A. Vitberg, who created the Literary Circle for the Junkers of the Nikolaev Engineering School, revealing for the first time this new page of its life, about the musical creativity of C.A. Cui, who wrote music on the poems of the cadets and successfully combined the composition of musical works with the teaching of military engineering. The names of the pupils of the school who took an active part in its fruitful activity during the mentioned period are established. The beginning of the literary activity of cadet B.V. Zhirkovich, who later connected his fate with literature and became famous as a satirical writer under the pseudonym I.K. Prutkov, is outlined. A brief characteristic of some works published in the “Collection of Literary Circle” No. 1 (St. Petersburg, 1907) and No. 2 (St. Petersburg, 1909) is given. The contents of both issues are presented.
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Oshin-Martin, Moronke. "Conflict, crisis and the media: Cultural intermediaries bridging the identity divide between Black immigrants and African Americans." Journal of Global Diaspora & Media 4, no. 1 (2023): 25–43. http://dx.doi.org/10.1386/gdm_00032_1.
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The Black Lives Matter (BLM) protests during the summer of 2020 provide an opportunity to reassess the relations between African Americans, Caribbean and African immigrants. I argue that while the social justice protests galvanized the Black community to fight against police brutality and systemic racism, the process began earlier and was significantly impacted by the advent of social media. Using Stuart Hall’s work as a framework, I argue that in today’s digital environment, celebrity influencers such as Barack Obama, Beyonce, Trevor Noah and Rihanna have used their formidable social media platforms to upend racially divisive media messaging about cultural identities of African Americans, Caribbean and African immigrants. I also explore broadening the concept of cultural intermediaries to recognize these influencers who bypass traditional intermediaries and connect directly with their followers to bridge the cultural identity divide.
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Gerza, Michal, and Frantisek Schauer. "Intelligent Processing of Experimental Data in ISES Remote Laboratory." International Journal of Online Engineering (iJOE) 12, no. 03 (2016): 58. http://dx.doi.org/10.3991/ijoe.v12i03.5538.
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The paper deals with the design of the intelligent processing of experimental data measured in the remote laboratories, where the measurements are performed by connected clients via the finite-state machine residing at an advanced server. As physical hardware and software is used the Internet School Experimental System (ISES). This platform is intended for educational purposes at schools and universities to provide the suitable measuring environment for students using computers. It is especially suitable for distance students who cannot attend regular courses during their studies of physics, chemistry or electro-engineering. At present, the remote laboratory does not dispose of any data processing technique. This results in excessive demands on storing capacity. The suggested solution solves this drawback by processing and archiving techniques to store measured data after their organizing in predetermined structures and concomitant data volume reduction. The paper is organized in the following manner. In the first section, Introduction, the ISES remote laboratory concept is introduced, following, State of the art, describing present stage of its ISES physical hardware development. The description of ISES physical software is concentrated at the Measureserver core unit realized as the finite-state machine. The next section deals with the design and implementation of the intelligent data processing component, which is focused on the extracting, filtering and archiving of measured data coming from the Measureserver unit communicating with a physical experiment. Finally, all the functional benefits are summarized for interested, who are involved in the remote experiments construction.
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Gomila, Antoni. "Realizing Who I Am." Revista de Filosofia Moderna e Contemporânea 9, no. 1 (2021): 51–67. http://dx.doi.org/10.26512/rfmc.v9i1.41032.
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In this paper, the old view of self-knowledge as a practical achievement is vindicated. Constitutivism, the view that connects self-knowledge to the rational agency, thus taking a step towards this practical dimension, is discussed first. But their assumption of an epistemic asymmetry that privileges self-knowledge is found mistaken. The practical dimension of self-knowledge, its potential transformative power, is accounted in terms of the interiorization of the concepts acquired in intersubjective interaction.
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Anyalewechi, Lucy Tochukwu, M. Danjuma I., Abdulkarim Ali Deba Dr., Delight Anyalewechi Amarachukwu, Emmanuel Chigozie Ajaegbu, and Diamond Anyalewechi Chidozie. "An Assessment into the Topic-Specific Pedagogical Content Knowlegde of Pre-Service Chemistry Teachers in Mole Concept in Abubakar Tafawa Balewa University Bauchi State: An Overview of the Difficult Content and Use of Representation Components." International Journal of Innovative Science and Research Technology (IJISRT) 9, no. 2 (2024): 8. https://doi.org/10.5281/zenodo.10686065.
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Topic-specific pedagogical content knowledge (TSPCK) is the bedrock in which the subject matter knowledge of a particular topic or content is delivered to students. This study assessed the TSPCK of the pre-service chemistry teachers in Abubakar Tafawa Balewa University with an in depth study of two major components of TSPCK. The two major components of TSPCK which are; The difficult content component and the use of Representation component were considered and this served as the basis for the research questions and the purpose of the study. The Mole concept has been viewed to be a very difficult topic for students to learn over the years. The two research questions sought to determine the extent to which the two components of TSPCK mentioned above were effectively transformed by the pre-service teachers. To answer the research questions, three (3) instruments were used for data collection which are: The TSPCK mole concept questionnaire which was given to the fifty-two (52) final year chemistry education student of the University in order to determine the extent of transformation of the TSPCK components, A TSPCK conceptual understanding test in mole concept which was given to the four selected pre-service teachers who were used as the case study and interview sections was to elicit or see the extent to which they can transform the component of TSPCK in teaching the concept well. The TSPCK conceptual understanding test was analyzed both quantitatively using the scoring rubric and qualitatively by explaining the content of the test written by each pre-service teachers and capturing their responses. Interview responses were coded to align with the TSPCK coding pattern adapted by Mavhunga (2012) and it was analyzed using the content analysis technique. The likert survey questionnaire was analyzed quantitatively using the mean and standard deviation. The pre-service chemistry teachers exhibited different levels of TSPCK in mole concept ranging from developing to exemplary TSPCK as evidenced by their knowledge of difficult content and the use of representations. Two of the pre-service teachers were able to transform these two components to a large extent while the other two pre- service teachers were to a moderate extent. There was proof of pre-service teachers lacking in certain areas of TSPCK such as the ability to identify some difficult contents and the inappropriate use of representations and analogies. This suggests that there is the need for improvements in pre-service teachers training which would help address the needs of current and future chemistry teacher. To facilitate TSPCK development, new methods need to be explored to connect chemistry education research to practice. Keywords:- Knowledge of Difficult Content, Components, Mole Concept, Representation, Analogies, TSPCK, Pre- Service Teachers.
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Verma, Vishakcha, and V. V. Maroshi. "F. M. DOSTOEVSKY VS RASKOLNIKOV IN MODERN RUSSIAN LITERATURE." Culture and Text, no. 55 (2023): 22–36. http://dx.doi.org/10.37386/2305-4077-2023-4-22-36.
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The article deals with one of the trends of creative reception of “Crime and Punishment” in the prose of modern Russian authors, two writers from St. Petersburg – the short story “The Trial” by S. Nosov and the novel “The Exposé of Dostoevsky” by T. Sintsova. The common theme of these two works is the biography and quasibiography of Dostoevsky in its correlation with the works of the writer, primarily the novel “Crime and Punishment”. In the case of the short story, the peculiarity of the novel’s reception is connected with representing Dostoevsky as a concrete author who partially identifies with Raskolnikov. In Sintsova’s novel, Dostoevsky acts as a “provocateur” of Raskolnikov-type murder.
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Zhdanov, S. S., and I. V. Gauzer. "IMAGE OF PICASSO IN THE NOVEL “KESAREVO SVECHENIYE” BY V. P. AKSENOV AS A PART OF SPANISh PERSONOSPHERE OF RUSSIAN CULTURE." Culture and Text, no. 56 (2024): 79–91. http://dx.doi.org/10.37386/2305-4077-2024-1-79-91.
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The paper deals with the image of Pablo Picasso in the novel “Kesarevo svecheniye” (“Cesarean Glow”) by V. P. Aksyonov. The analysis of the imagery is connected with the tradition of representing the Picasso myth-image as part of the Spanish painting personosphere in Russian culture. This myth-image includes the motives of demiurge, who destroys and creates an artistic space, fire-inspiration, trickster, making familiar forms of the surrounding world to look foreign, which is consistent with the narrative syncretism of the Aksyonov’s postmodern text. The motif of “Russian” Picasso is also an important component of the painter’s myth-image, realized by connecting with Russian images of Pushkin, Tatlin, Khlebnikov, Khokhlova, Dilaktorskaya, Stalin and the Gorelik family.
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DEICHMANN, UTE. "Early responses to Avery et al.'s paper on DNA as hereditary material." Historical Studies in the Physical and Biological Sciences 34, no. 2 (2004): 207–32. http://dx.doi.org/10.1525/hsps.2004.34.2.207.
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ABSTRACT: Avery's et al.'s 1944 paper provides the first direct evidence of DNA having gene-like properties and marks the beginning of a new phase in early molecular genetics (with a strong focus on chemistry and DNA). The study of its reception shows that on the whole, Avery's results were immediately appreciated and motivated new research on transformation, the chemical nature of DNA's biological specificity and bacteria genetics. It shows, too, that initial problems of transferring transformation to other systems and prominent criticism of its results nurtured skepticism. Avery's experiment was downplayed and neglected particularly by many of those scientists who worked in the new fields of biochemical and biophysical genetics, genetic phage, and TMV research. This was not due to the fact that the implications of the paper could not be connected to generally accepted knowledge. Contrary to a widespread belief, the assumed uniformity of DNA as opposed to proteins was not used as an argument against the validity of Avery's et al.'s finding. The indifference rather reflected, among other things, the disciplinary gap between the chemically oriented microbiologists and the old and new geneticists who remained committed to genetic and physical methods (in particular x-ray studies) and clung to the assumption that proteins were the sole carriers of biological specificity. The responses to Avery's et al.'s paper show how different research interests in the areas between microbiology, genetics, and biochemistry interacted with the prejudices, dogmas, individual farsightedness or short-sightedness, and scientific authority during a pivotal period of early molecular biology.
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K, Tamilselvi, and Thamilarasan P. "Livelihood of the Folk People in the novel Sool." International Research Journal of Tamil 4, S-6 (2022): 32–37. http://dx.doi.org/10.34256/irjt22s65.
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Culture is a kind of practice and social behaviour of a particular group of people in the society meant for organizing their lives. It can be attained through the four virtues that are moral, material, pleasure and austerity which is connected to the integral and external part of human life. Tamil people have strongly rooted in its classical language, culture and tradition for more than two thousand years and it has been successfully reflected in its literature which is renowned worldwide for having a great impact on other countries (foreigners). This code of culture and tradition is based on the integral and intellectual insight of Tamil people, not depend on their economic values, this kind of values are found in the novel ‘Sool’ written by the Sakhithya Akademi Award (2019) winning writer So.Dharman who has traced out from the life of Urulaikkudi people depicting their agricultural practices and water resource management especially on various forms of their worship, festival, medicine, rituals and conventional beliefs. These are closely connected to their daily routine life and this research paper is briefly focused on the rustic lives, practices of Tamil people described by the writer So. Dharman. Thus, culture is so called identity and inheritance of Tamil people in and around the world.
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Ponzanesi, Sandra. "Somali diaspora and digital belonging: Introduction." Journal of Global Diaspora & Media 2, no. 1 (2021): 3–15. http://dx.doi.org/10.1386/gdm_00010_2.
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This editorial introduces the theoretical framework, methodological approach and comparative themes of the Special Issue on ‘Somali Diaspora and Digital Practices: Gender, Media and Belonging’. The Special Issue proposes to connect the notion of the Somali diaspora to recent advancements in communication technologies, exploring the ways in which the Somali, specifically Somali women, keep in touch locally, nationally and transnationally through different forms of everyday digital practices. In particular for Somali migrant women, the use of digital media is highly embedded in their gendered roles as mothers, daughters, reunited wives, students and professionals, who keep the ties with the homeland and diaspora communities in diversified as well as collective ways. The close analysis of empirical findings across different sites in Europe shows multi-sitedness, generation and urban belonging as central features. These issues emerge as findings from a large ethnographic fieldwork carried out across European cities (Amsterdam, London and Rome). Ethnography offers an essential contribution in understanding social media practices as situated in specific social, geographical and political contexts, taking into account the intersectional dynamic of factors including gender, race, ethnicity, generation, religion and sexual orientation.
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Smolensky, V. V., and V. G. Krivovichev. "Minerals Named in Honor of Alumni and Staff Members of the Saint Petersburg State University (to the 300th Anniversary of Saint Petersburg State University)." Zapiski RMO (Proceedings of the Russian Mineralogical Society) CLII, no. 5 (2023): 100–126. http://dx.doi.org/10.31857/s0869605523050076.
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The article is dedicated to the 300th anniversary of the Saint Petersburg State University. History of the University is closely connected with the names of scientists who have made a huge contribution to the development of mineralogy, adjacent sciences and education. The names of 70 alumni and staff members of the University have forever entered the history of mineralogy. 85 mineral species are named in their honor. The article summarizes the scientific interests and achievements of professors and scientists, after whom the minerals were named.