bluuebunny/crossref_metadata_2025 huggingface dataset:
Perencanaan Pengelolaan Limbah Bahan Berbahaya dan Beracun (B3) Pada Perusahaan Kelapa Sawit (Studi kasus: PT X di Kalimantan Barat)
Authors: Pangesti Rahayu , Jati Dian Rahayu , Asban Govira Christiadora
Published: July 2023

ABSTRAKKelapa sawit merupakan salah satu industri dengan perkembangan yang pesat di Indonesia. Pengolahan kelapa sawit disertai keluaran lain berupa limbah B3 dari genset, kendaraan, pekerja, stasiun boiler, stasiun WTP, penerangan dan klinik perusahaan. Limbah B3 harus dikelola sesuai peraturan yang berlaku agar tidak mencemari lingkungan. Penelitian bertujuan mengetahui jenis limbah B3 yang dihasilkan PT.X serta cara pengelolaannya, mengevaluasi pengelolaan limbah dan merencanakan pengelolaan limbah B3 sesuai peraturan. Metode yang digunakan yaitu evaluasi dengan Skala Guttman berdasarkan Permen LHK No.6 tahun 2021, PP No.22 tahun 2021 dan Permenkes No.7 Tahun 2019. Kemudian direncanakan pengelolaan limbah B3 berdasarkan hasil dari evaluasi. Berdasarkan hasil penelitian evaluasi untuk pewadahan dan pengemasan adalah 62,5 % termasuk kategori â€˜Baikâ€, sistem penyimpanan adalah 33,33% termasuk kategori â€˜Burukâ€™, bangunan penyimpanan adalah 75% termasuk kategori â€˜Baikâ€™, dengan label limbah belum ada penggunaan label pada kemasan limbah B3 di PT.X. Sedangkan untuk limbah klinik belum bisa dilakukan evaluasi karena belum ada pengelolaan yang dilakukan. Evaluasi menghasilkan beberapa perbaikan dalam pengelolaan limbah B3 PT.X dari pengurangan, pengumpulan dan penyimpanan, pengangkutan, pemanfaatan, serta pengolahan dan peninbunan.Â ABSTRACTPalm oil processing also produces hazardous and toxic waste as a side output that comes from generation, vehicles, workers, boiler stations, WTP stations, lighting system and clinics. This waste must be managed according to regulations, so it doesnâ€™t pollute the environment. The purpose of this research is to identify the type of hazardous and toxic waste in PT X and how to manage it, to evaluate it and planning waste management to comply with regulations. The method used is an evaluation using the Guttman Scale based on the Permen LHK No. 6 of 2021, PP No. 22 of 2021 and Permenkes No. 56 of 2019. After that, waste management will be planned based on the evaluation results. The evaluation result for the packaging criteria is 62,5% into the 'Good' category, the storage system criteria is 33,33% into the 'Bad' category, the storage building criteria is 75% into the ' Good' category, and thereâ€™s no label on the waste packaging. Meanwhile, clinical waste cannot be evaluated because thereâ€™s no waste management carried out. Based on the evaluation, there are several improvement plans that need to be carried out, starting from reduction, collection and storage, transportation, utilization, processing and waste dump.
Analisis Kemampuan Vegetasi pada Ruang Terbuka Hijau dalam Menyerap Emisi CO2 Kendaraan Bermotor di Area Kantor Gubernur Kalimantan Barat
Authors: Sarasidehe Priskila Grase , Jati Dian Rahayu , Jumiati Jumiati
Published: July 2023

ABSTRAKKantor Gubernur Kalimantan Barat merupakan area perkantoran milik pemerintah yang terletak di pusat Kota Pontianak. Kendaraan bermotor menghasilkan emisi CO2 yang berpengaruh buruk terhadap lingkungan dan kesehatan, maka dari itu wilayah ini memerlukan RTH yang seimbang dengan banyaknya jumlah kendaraan bermotor. Tujuan dari penelitian skripsi ini yaitu menganalisis jumlah emisi CO2 yang dihasilkan kendaraan bermotor, mendata dan menghitung serta menganalisis kemampuan vegetasi pada RTH area Kantor Gubernur Kalimantan Barat dalam menyerap emisi CO2 yang dihasilkan kendaraan bermotor. Penelitian ini menggunakan metode observasi dan analisis. Berdasarkan hasil analisis, didapatkan bahwa jumlah emisi CO2 yang dihasilkan dari kendaraan bermotor di area tersebut sebesar 3,298 ton/tahun dengan jumlah kendaraan sebanyak 306.800 unit/tahun dan total daya serap vegetasi terhadap CO2 sebesar 938,416 ton/unit. Hal ini menunjukkan bahwa vegetasi pada RTH area Kantor Gubernur Kalimantan Barat mampu menyerap emisi CO2 yang dihasilkan kendaraan bermotor dengan jumlah CO2 yang masih dapat terserap mencapai 936,317 ton/tahun.Â ABSTRACTThe West Kalimantan Governor's Office is a government-owned office area located in the center of Pontianak City. Motorized vehicles produce CO2 emissions that adversely affect the environment and health, therefore this area requires green open space that is balanced with the large number of motorized vehicles. The purpose of this thesis research is to analyze the amount of CO2 emissions from motor vehicles, record and calculate and analyze the ability of vegetation in the green open space area of the Governor's Office of West Kalimantan to absorb CO2 emissions produced by motorized vehicles. This study uses observation and analysis methods. Based on the results of the analysis, it was found that the amount of CO2 emissions produced from motor vehicles in the area was 3,298 tons/year with the number of vehicles as much as 306,800 units/year and the total absorption capacity of vegetation to CO2 was 938,416 tons/unit. This shows that the vegetation in the green open space area of the Governor's Office of West Kalimantan is able to absorb CO2 emissions produced by motorized vehicles with the amount of CO2 that can still be absorbed reaching 936,317 tons/year.
Analisis Hubungan Pola Konsumsi Terhadap Produksi Sampah Domestik Mahasiswa Pendidikan Biologi Untirta
Authors: Utari Enggar , Rahmah Arina , Nisa Rifda Nurapni Roudotun
Published: July 2023

ABSTRAKSampah adalah sisa suatu kegiatan (manusia) yang berbentuk padat (baik berupa zat organik maupun anorganik yang sifatnya dapat terurai maupun tidak terurai) dan sudah tidak berguna lagi (sehingga dibuang pada tempat pembuangan akhir). Penelitian ini bertujuan untuk mengetahui pola konsumsi terhadap produksi sampah domestic beserta akibatnya. Metode penelitian yang digunakan pada penelitian ini adalah metode kualitatif dan pemgumpulan data yang digunakan melalui penyebaran angket kuisioner, analisis kuisioner dan juga menggunakan studi literatur. Produksi ampah menjadi suatu kegiatan rutin manusia yang berdampak pada suatu pola konsumsi. Pola gaya hidup masyarakat perkotaan yang dapat dijelaskan dari segi seberapa tinggi status seseorang atau seberapa besar pengaruh seseorang dalam kehidupan masyarakat sekitarnya. Apalagi gaya hidup erat kaitannya dengan perkembangan zaman dan teknologi. Karena dengan semakin berkembangnya waktu dan teknologi, penerapan gaya hidup dalam kehidupan sehari-hari masyarakat kota juga akan semakin meningkat.Â ABSTRACTWaste is the residue of an activity that is in solid form (both in the form of organic and inorganic substances that can be decomposed or not decomposed) and is no longer useful (so disposed of in a landfill). This study aims to determine the consumption pattern of domestic waste production and its consequences. The research method used in this study is a qualitative method and data collection is used through the distribution of questionnaires, questionnaire analysis, and also using literature studies. Waste prouduction becomes a routine human activity that has an impact on a pattern consumption behavior. The lifestyle of urban communities can be explained by how high a person's status is or how much influence a person has in the lives of the surrounding community. Moreover, lifestyle is closely related to the times and technology. Because with the development of time and technology, the application of lifestyle in the daily life of urban people will also increase.
Analisis Angin Permukaan Di Pelabuhan Dwikora Pontianak Menggunakan Wind Rose
Authors: Irsan Robby , Istiqomah Qolby
Published: July 2023

ABSTRAKIndonesia negara yang memiliki banyak pulau sehingga untuk memenuhi kebutuhan dan kegiatan ekonomi perlu adanya pengiriman antar pulau. Analisis arah dan kecepatan angin permukaan Pelabuhan Dwikora Pontianak bertujuan untuk mengetahui kondisi serta dapat memprediksi arah dan kecepatan angin yang akan terjadi. Metode yang digunakan untuk menganalisis kondisi arah dkecepatan angin menggunakan metode windrose serta metode lain yang dipakai pada penelitian ini yaitu metode deskriptif analisis. Kondisi angin pada bulan Januari didominasi pola angin monsunal, bulan februari dari arah timur laut dikarenakan pusat tekanan rendah yang ada di bumi bagian utara mengakibatkan bertiup dari bumi bagian selatan, bulan Maret angin dipengaruhi gerak semu matahari, bulan April dan bulan Mei didominasi angin monsun timur, bulan Juni dan Juli terjadinya musim peralihan, bulan Agustus terjadinya panas karena angin bergerak kea rah timur laut, bulan September dan Oktober terjadinya musim peralihan, serta bulan November dan Desember terjadinya musim hujan.Kata kunci: Angin, Arah Angin, Wind rose, Pelabuhan DwikoraABSTRACTIndonesia is a country that has many islands so that to meet the needs and economic activities it is necessary to have inter-island shipping. The analysis of the direction and surface wind speed of Pontianak Dwikora Port aims to determine the conditions and can predict the direction and speed of the wind that will occur. The method used to analyze the conditions of wind direction and speed using the windrose method and other methods used in this study, namely descriptive analysis method. Wind conditions in January are dominated by monsoon winds, February is from the northeast due to the low pressure center in the northern hemisphere causing it to blow from the southern hemisphere, in March the wind is influenced by the apparent motion of the sun, April and May are dominated by east monsoon winds. , June and July are the transition season, August is hot because the wind moves to the northeast, September and October are the transition season, and November and December are the rainy season.Keywords: Wind, Wind Direction, Wind rose, Dwikora Harbor
Laju Deforestasi Hutan Akibat Aktivitas Pertambangan di Provinsi Kalimantan Timur
Authors: Ramadhany Nugraha
Published: July 2023

ABSTRAKDeforestasi hutan merupakan salah satu masalah terjadinya efek gas karbon dan perubahan iklim pada level global. Tak terkecuali di Indonesia, deforestasi hutan menjadi masalah serius yang memberikan dampak negatif bagi kualitas lingkungan hidup. Berbagai aktivitas ekonomi yang berada di kawasan hutan menjadi penyebab tingginya laju deforestasi hutan di Indonesia. Untuk mengatasi hal tersebut perlu dikaji secara komprehensif penyebab utama terjadinya deforastasi hutan agar dapat dirumuskan tindakan maupun kebijakan yang dapat mengurangi laju deforestasi hutan. Penulis menggunakan pendeketan DPSIR (Driving Forces, Pressure, State, Impact, Response) sebagai kerangka konseptual. Pendekatan secara kualitatif berdasarkan studi literatur dari berbagai sumber dipergunakan oleh penulis untuk mendeskripsikan masalah secara menyeluruh. Berdasarkan penelitian yang dilakukan, penulis menemukan bahwa kegiatan pertambangan memberikan kontribusi yang signifikan dalam peningkatan laju deforestasi hutan di Indonesia, khususnya di Kalimantan Timur. Perlu dilakukan tindakan dan kebijakan berorientasi lingkungan untuk menyelesaikan tantangan tersebut agar dapat mengatasi laju deforestasi yang terjadi di Indonesia.Kata kunci: deforestasi, hutan, pertambangan, lingkunganABSTRACTDeforestation is one of the problems caused by the effects of carbon gases and climate change at the global level. Indonesia is no exception. Deforestation is a severe problem that harms environmental quality. Various economic activities located in forest areas are the cause of the high rate of deforestation in Indonesia. Studying the prominent causes of deforestation is necessary to formulate actions and policies to reduce the deforestation rate. The author uses the DPSIR (Driving Forces, Pressure, State, Impact, Response) approach as a conceptual framework. The author uses a qualitative approach based on literature studies from various sources to describe the problem comprehensively. Based on the research conducted, the authors found that mining activities significantly contributed to increasing the rate of deforestation in Indonesia, especially in East Kalimantan. It is necessary to take environmentally oriented actions and policies to resolve these challenges to overcome Indonesiaâ€™s deforestation rate.Keywords: deforestation, forest, mining, environment.
Perencanaan Instalasi Pengolahan Air Limbah (IPAL) Rumah Potong Ayam PD.X
Authors: Suciana Indah , Utomo Kiki Prio , Pramadita Suci
Published: July 2023

ABSTRAKKebutuhan daging, khususnya daging ayam setiap tahun terus meningkat. Tahun 2020 kebutuhan daging ayam sebesar 56.090 ton, tahun 2021 sebanyak 62.708 ton. Peningkatan tersebut menyebabkan semakin banyak rumah potong ayam (RPA) di Kota Pontianak. RPA PD.X merupakan satu diantara rumah potong ayam yang berada di Kota Pontianak dan belum memiliki IPAL untuk mengolah limbah cair yang dihasilkan. Limbah cair RPA mengandung zat organik yang tergolong tinggi sehingga berpotensi mencemari lingkungan. Sampel diambil dengan menerapkan metode grab sample pada pukul 11.00 WIB, selanjutnya sampel air limbah akan diuji di Laboratorium Baristand Kota Pontianak. Debit limbah cair RPA PD.X yang direncanakan sebesar 36 m3/hari. Karakteristik limbah cair RPA PD.X yaitu BOD 317 mg/l, COD 873 mg/l, TSS 160 mg/l, minyak dan lemak 6,9 mg/l, suhu 28,3oC, serta pH 6,23. Kadar BOD, COD, dan TSS melebihi standar baku yang sudah ditentukan yaitu Peraturan Daerah Provinsi Kalimantan Timur Nomor 02 Tahun 2011. Hasil dari perencanaan ini dipilih unit pengolahan yang terdiri atas bar screen, bak ekualisasi, bak sedimentasi awal, bak biofilter aerob, serta bak sedimentasi akhir dengan total luas lahan yang diperlukan sebesar 10 m2. Total biaya yang diperlukan sebesar Rp. 26,304,507.51,-.Kata Kunci: Biofilter Aerob, Limbah Cair, Rumah Potong AyamABSTRACTThe consumption of meat, specifically chicken meat, is increasing regularly. A total of 56,090 tons of chicken meat will be required in 2020, and 62,708 tons in 2021. More chicken slaughterhouses (RPA) were built in Pontianak City as a result of this increase. One of the chicken slaughterhouses in Pontianak City, RPA PD.X, does not yet have a WWTP to handle the liquid waste it produces. RPA liquid waste contains a lot of organic stuff and could harm the environment. The grab sample method was used for sampling, and the wastewater samples were then analysed at the Baristand Laboratory in Pontianak City. RPA PD.X liquid waste will be discharged at a 36 m3/day rate. RPA PD.X wastewater's characteristics BOD 317 mg/l, COD 873 mg/l, TSS 160 mg/l, oil and grease 6.9 mg/l, temperature 28.3 C, pH 6.23. The levels of BOD, COD, and TSS are higher than the established norms,Regional Regulation of the Province of East Kalimantan Number 02 of 2011. The final processing unit, with a total necessary land area of 10 m2, was chosen based on the results of this plan. It consists of bar screens, equalization tanks, initial sedimentation tanks, aerobic biofilter tanks, and storage tanks for final sedimentation. Rp 26,304,507.51 is the total price.Keywords: Biofilter Aerob, Wastewater, Chicken Slaughterhouse
NEUROPSYCHOLOGICAL DIFFERENTIATION OF THE STAGES OF FORMATION AND DEVELOPMENT OF THE LANGUAGE PERSONALITY OF A CHILD WITH AUTISM SPECTRUM DISORDER
Authors: D.V. Dremin
Published: July 2023

In modern Russian society, one of the most urgent problems is the creation of a versatile system of medical, psychological and pedagogical support for children with autism spectrum disorder (ASD). The fact that the number of autistic children does not decrease every year, and approaches to the study, classification, diagnosis, and correction of symptoms of autism spectrum disorders continues to grow, indicates the objective complexity of the problem. Separate attempts to differentiate specific symptomatic conditions in children with ASD contribute to a qualitative improvement in correctional programs.
In particular, within the framework of this study, we propose to turn to the analysis of the developmental features of the language personality of a child with ASD. In recent years, studies have been published that analyze one or more language levels, as well as their relationship with primary cognitive impairments. Meanwhile, the issue of the complexity of language development in relation to children with ASD is practically not considered, since the correction of their speech and cognitive impairments, the development of social skills and other forms that facilitate the process of integrating this category of children into society come to the fore. Meanwhile, the complex formation of the language skills of any child is the most important guarantee of his social and educational adaptation, as well as a key factor in personal growth. In the case of children with ASD, the study of neuropsychological parameters of the development of language personality is of particular importance.
Influence of the “New Generation” Governors of Russian Regions on the Level of Investment Development in the Federal Subjects
Authors: Kurbanova K. M.
Published: July 2023

The article discusses the influence of the “new generation” governors of Russian regions on the level of investment development in the federal subjects through the analysis of personnel appointments to the regions by the Federal Center. The author analyzes the personnel policy of the Federal Center and the policy of governors in the subjects after their appointment. The biographies of governors is also taken into consideration in order to identify the nature of the policy pursued. The author comes to the conclusion that the leaders of Russian regions influence the level of socio-economic development of the regions and increase the level of investment development through the policy they pursue in the subject.
Politicization of the Ethno-Tribal Component in Sudan
Authors: Abdalwahid Mohammed M. H.
Published: July 2023

This article discusses the ways of politicization of the ethno-tribal component in Sudan. And it proves that the manipulation of these factors by political actors contributed to the emergence of conflicts and instability in the country. The author analyzes the historical context in which ethnicity and tribalism were first politicized in Sudan, and how these factors were used to justify and perpetuate various forms of violence and discrimination. Finally, the author comes to the conclusion that in order to resolve ongoing conflicts, Sudan needs to focus on solving the main problems that underlie them — inequality and marginalization.
The Russo-Japanese War of 1904–1905 in the documents of the Police Department and the Moscow Guard Department
Authors: Medvedev S. V. , Kochetkov E. E. , Bestaeva E. V.
Published: July 2023

The article analyzes the operational documentation of the Police Department and the Moscow Guard Department, concerning topics related in one way or another to the Russo-Japanese war of 1904–1905. The authors consider the controversial issue of drafting reserve officers, who served as policemen, into the army; officials’ correspondence on the issue of double salaries of police officers who had been drafted to the front. The article includes reports from the heads of local investigative agencies about those who allowed themselves anti-war statements. The documents analyzed in the article are kept in the funds of the State Archive of the Russian Federation — 102 (Police Department) and 63 (Moscow Guard Department). The documents of the 58th fund (Moscow Provincial Gendarme Department) and 124th fund (Criminal departments of the first Department of the Ministry of Justice) were partially used.
Technologies of the Value System Translation through Hollywood Products in 2000–2023
Authors: Minasov M. I.
Published: July 2023

The article discusses the issue of current value perception and value orientations in Hollywood Animation Industry, especially its features and dynamics. Moreover, the paper provides the analysis of an ideal hero and the national idea concepts that affect the mass consciousness and collective thinking through their representation in the film industry. This analysis is based on cult films of various directors. Examples of manipulative technologies employed in Hollywood films and their consequences are also provided and analyzed. In addition, the article discusses the aspect of the commercial success of films and the dependence of the box office revenue on the opinion of film critics, press screenings and received film awards in the XXI century.
Technological Sovereignty and Demographic Growth as Key Elements of State Security in the Current Geopolitical Reality
Authors: Sadovnikov S. V.
Published: July 2023

This paper examines the importance of enhancing policies of technological sovereignty and demographic growth in order to increase the economic power of the state, which is a key condition for success in the geopolitical confrontation with the United States and NATO countries. The article uses specific and general analysis methods, comparison and analogy method, scientific works of researchers who consider the issue of import substitution and demography, interviews and speeches of persons holding public office, as well as the author’s empirical observations of the processes of public administration in these areas. Having considered the issue, the author has come to conclusion that to ensure the parity of the Russian economy with the world leaders, it is necessary to focus on the development of domestic high-tech production. Moreover, it should be combined with a change in the approach to the solving of the demographic problem by focusing on the resettlement of citizens in the framework of individual housing construction.
General Results of Assessment of Supraprofessional Competencies of 1st‑4th Year Students
Authors: Komissarov A. G. , Stepashkina E. A. , Sobolevac O. B. , Guzhelya D. Yu. , Selezneve P. S.
Published: July 2023

Subject. The problem of developing “soft” skills of recent graduates is acute in some areas of business. According to employers, young employees may have a high level of knowledge, but a low level of soft skills. The article considers the primary results of the pilot year of the project “Assessment and development of managerial competencies in Russian universities” (“Competence Centers”). The following competencies were assessed: information analysis; partnership and cooperation; planning and organization; result orientation; stress tolerance; following rules.

Goals. Describe cross-professional competencies among university students; reveal links between different soft and hard competencies in university students.

Methodology. The sample consisted of 28,933 students from 51 Russian universities. The following instruments were used to assess students’ soft skills: The Universal Personality Questionnaire, The Resilience Questionnaire, Tests for the analysis of numerical and verbal information. The analysis included correlational analysis, t-test and descriptive statistics.

Results. The competencies “Stress resistance” and “Result orientation”, “Planning” and “Stress resistance” are strongly positively related (correlations are from 0.75). The competencies “Result orientation” and “Following the rules”, “Stress resistance” and “Following the rules” are negatively related (correlations are from — 0.22). The Information Analysis competency is not related to other competencies. The 4th year students show a higher result in “Information Analysis” and “Following the Rules” than the 1st year students.

Conclusions. We describe differences in cross-professional competencies among students of different years of study and discuss possible explanations for these differences.
Family Entrepreneurship as a Type of Gender-neutral Entrepreneurship: Social Essence and Labor Potential
Authors: Sillaste G. G.
Published: July 2023

Family entrepreneurship as a social phenomenon, as a type of employment and economic activity of the Russian family remains a poorly studied issue of sociological analysis and sociology of entrepreneurship. The author of this article guided by the principle of historical continuity analyzes the phenomenon of family entrepreneurship as a type of economic activity from the viewpoint of theoretical positions of J. Schumpeter, N. Kondratiev, F. Knight, F. Haiker and I. Kirzer. At the same time, the author synthesizes an economic approach with a sociological one on four theoretical and methodological grounds: family entrepreneurship as a social phenomenon of economic development; as a type of labor activity; as a form of group economic behavior of a small group and as a type of labor education of children, their integration into the economic activity of the family as a whole. From the conceptual standpoint of gender sociology and the new world order, family entrepreneurship is presented as a type of gender-neutral entrepreneurship in which all family members can participate, regardless of gender, but with varying degrees of involvement into the family business. The empirical data for the analysis is based on the results of applied sociological research of the Scientific School “Gender Economic Sociology” of the Financial University under the Government of the Russian Federation, on the one hand, and the Russian Chamber of Commerce and Industry, on the other.
The Influence of Positivism on E. V. D e Roberti’s Socio-Philosophical Views Formation
Authors: Akhmedova M. G.
Published: July 2023

The article discusses the socio-philosophical views of E. V. De Roberti, who was the pioneer of the neo-positivist trend in Russia. De Roberti is a recognized theorist of socio-philosophical thought, whose sociological system was based on the “biosocial hypothesis”. This hypothesis had a huge impact on philosophers and sociologists who supported the organic theory as well as on those who supported the psychological approach, thus it violated the internal unity and consistency of their teachings. The work of E. V. De Roberti is an era in the development of the social philosophy of Russia during the pre-revolutionary period. The works of the Russian scientist have not lost their historical and scientific significance even today. Moreover, they are still a brilliant example of broad erudition and a relevant source of ideas. His life is an example of how a scientist can carry out his civic duty. These all are the things that are so necessary to preserve continuity in the development of Russian philosophical thought.
Russian Companies in International and Domestic ES G Ratings
Authors: Andrianov V. V. , Sirotkin M. S. , Bazhenova M. V.
Published: July 2023

The article discusses the representation of Russian companies in domestic and foreign ESG ratings. The authors analyzed the methodology features of 6 foreign and 11 Russian ratings. A top list of companies has been compiled using databases, this list is based on the consolidated ratings as well as on a separate assessment of the companies. The analysis of the Russian market showed the predominance of the raw materials companies in the top place. This result could refute the opinion that these companies are the main opponents of the pro-environmental agenda. The authors of the research paper come to the conclusion that the introduction of ERP principles is inevitable for Russian companies, as it contributes to the achieving the national development goals of the Russian Federation.
Influence of the Al content on the phase transformations in Cu-Al-Ag alloys
Authors: Adorno Antonio Tallarico , Benedetti Assis Vicente , Da Silva Ricardo Alexandre Galdino , Blanco Matildes
Published: July 2023

The influence of the Al content on the phase transformations in Cu-Al-Ag alloys was studied byclassical differential thermal analysis (DTA), optical microscopy (OM) and X-ray diffractometry (XRD).The results indicated that the increase in the Al content and the presence of Ag decrease the rate of theβ1 phase decomposition reaction and contribute for the raise of this transition temperature, thus decreasingthe stability range of the perlitic phase resulted from the b1 decomposition reaction.
Structural bioinformatics study of cyclin-dependent kinases complexed with inhibitors
Authors: Canduri Fernanda , Da Silveira Nelson José Freitas , Câmera Junior João Carlos , De Azevedo Júnior Walter Filgueira
Published: July 2023

The present work describes molecular models for the binary complexes CDK9, CDK5 andCDK1 complexed with Flavopiridol and Roscovitine. These structural models indicate that the inhibitorsstrongly bind to the ATP-binding pocket of CDKs and the structural comparison with the complexesCDK2:Flavopiridol and CDK2:Roscovitine correlates the structural differences with differences ininhibition of these CDKs by the inhibitors. These structures open the possibility of testing new inhibitorfamilies, in addition to new substituents for the already known lead structures such as flavones andadenine derivatives.
Avaliação do emprego dos adsorventes: carvão ativo, chromosorb W e membrana C18 na preparação de amostras de ar para a determinação de d-aletrina em ambientes fechados
Authors: Paiva Katiúcia Batista Silva , De Menezes Manoel Lima
Published: July 2023

Os piretróides sintéticos são inseticidas amplamente utilizados para o controle de agentespatogênicos, desde a produção agrícola até a proteção da saúde humana, porém, apesar de suas inúmerasvantagens podem causar intoxicações em indivíduos potencialmente expostos a suas diversasapresentações. Amostras de ar foram coletadas pela geração da atmosfera padrão, onde a d-aletrina foiadsorvida em cartuchos contendo Carvão Ativo, Chromosorb W e/ou Membrana C 18 . As determinaçõesdas concentrações da d-aletrina foram efetuadas empregando um sistema de cromatografia gasosa.Os adsorventes Carvão ativo, Chromosorb W e Membrana C 18 apresentaram adsorções de 100,8., 104,1e 100,5%, com um desvio padrão relativo de 4,1, 7,5 e 7,9%, respectivamente. Coletou-se amostras de arpara a determinação da concentração da d-aletrina em diferentes em ambientes fechados, em diferentesdias da semana, obtendo-se níveis de concentração de d-aletrina de 3,4., 8,5 e 12,7 μg.m 3 , respectivamente.
Characteristics of pyridine adsorption on Au(111) and Au(210) by EIS parameters fitting procedure
Authors: Motheo Artur de Jesus , Saldanha Rosangela Maria Pompônio , Neves Rodrigo de Santis , De Robertis Eveline , Sadkowski Andrzej
Published: July 2023

Some aspects of the application of electrochemical impedance spectroscopy to studies ofsolid electrode / solution interface, in the absence of faradaic processes, are analysed. In order to performthis analysis, gold electrodes with (111) and (210) crystallographic orientations in an aqueous solutioncontaining 10 mmol dm -3 KF, as supporting electrolyte, and a pyridine concentration varying from 0.01to 4.6 mmol dm -3 , were used. The experimental data was analysed by using EQUIVCRT software, whichutilises non-linear least squares routines, attributing to the solid electrode / solution interface behaviourdescribed by an equivalent circuit with a resistance in series with a constant phase element. The resultsof this fitting procedure were analysed by the dependence on the electrode potential on two parameters:the pre-exponential factor, Y 0 , and the exponent n f , related with the phase angle shift. By this analysis itwas possible to observe that the pyridine adsorption is strongly affected by the crystallographic orientationof the electrode surface and that the extent of deviation from ideal capacitive behaviour is mainly ofinterfacial origin.
Estudo da aplicação do processo foto-Fenton solar na degradação de efluentes de indústria de tintas
Authors: Da Silva Milady Renata Apolinário , De Oliveira Mirela Cristina , Nogueira Raquel Fernandes Pupo
Published: July 2023

Neste trabalho estudou-se a aplicabilidade do processo foto-Fenton utilizando irradiaçãosolar no tratamento de dois efluentes (A e B) de uma indústria de tintas. Foi avaliada a influência daconcentração inicial de peróxido de hidrogênio e ferro na remoção de carbono orgânico dissolvido(COD). Nos primeiros minutos de irradiação foi observada a descoloração e a remoção de odores. Parao efluente A, atingiu-se 75 % de remoção de COD durante 60 minutos de irradiação. Para o efluente B,adições múltiplas de peróxido de hidrogênio foram necessárias para aumentar a remoção de COD, 43% em 60 minutos de irradiação. Os resultados obtidos mostram que o processo foto-Fenton solar podeser aplicado ao tratamento dos efluentes gerados na indústria de tintas.
Lychnophoric acid from Lychnophora pinaster: a complete and unequivocal assignment by NMR spectroscopy
Authors: Silveira Damaris , De Souza Filho Jose Dias , De Oliveira Alaide Braga , Raslan Delio Soares
Published: July 2023

The investigation of the hexane extract from aerial parts of Lychnophora pinaster provided,besides others substances, the E-isomer of lychnophoric acid, a sesquiterpene derivative previously isolatedfrom L. affinis.
Synthesis, structural and morphological characterization of CeO2 – ZnO nanosized powder systems from Pechini’s method
Authors: Peverari Cinara , Pires Ana Maria , Gonçalves Rogéria Rocha , Serra Osvaldo Antonio
Published: July 2023

This work reports on the investigation of nanosized CeO 2 -ZnO systems prepared by Pechini'smethod. The structural and morphological characterization of CeO 2 -ZnO systems as well as thecharacterization of CeO 2 and ZnO separately, showed that the employed method result in powders withspheroidal particles whose size are in the range 30 - 200 nm, which is appropriate to provide homogeneoussuspensions. The ZnO present in the prepared mixed oxides seems to increase particle size distribution andto influence the arrangement of the particles after powder dispersion.
Lability of Cd, Cr, Cu, Mn and Pb complexed by aquatic humic substances
Authors: De Castro Gustavo Rocha , Padilha Cilene do Carmo Federici , Rocha Júlio Cesar , Valente José Pedro Serra , Florentino Ariovaldo de Oliveira , Padilha Pedro Magalhães
Published: July 2023

The lability of Cd(II), Cr(III), Cu(II), Mn(II) and Pb(II) complexed by humic substances (HSs)was investigated by means of ion exchange on cellulose modified with p-aminobenzoic groups (Cell-PAB),using a batch procedure. The HSs were extracted from water samples using adsorption in a column packedwith XAD 8 resin. The metal-HS complexes were prepared by adding solutions containing all theaforementioned metal ions ( Cd(II), Cr(III), Cu(II), Mn(II) and Pb(II) ). The results indicated that thedistribution coefficients (Kd) of Cell-PAB decreased with the presence of HSs, and that the lability of metalfractions complexed by HSs decreases in pH values > 4.0, complexation time > 10 h and HS concentration> 500 mg L -1 . The metal exchange between HSs and Cell-PAB exhibited the following order of metal ionlability: Cd < Pb < Mn ≅ Cr < Cu.
Spectrophotometric determination of methyldopa in pharmaceutical formulations
Authors: Ribeiro Paulo Roberto da Silva , Pezza Leonardo , Pezza Helena Redigolo
Published: July 2023

A new, simple, precise, rapid and low-cost spectrophotometric method for methyldopadetermination in pharmaceutical preparations is described. This method is based on the complexationreaction of methyldopa with molybdate. Absorbance of the resulting yellow coloured product is measuredat 410 nm. Beer’s Law is obeyed in a concentration range of 50 – 200 μg ml -1 methyldopa with anexcellent correlation coefficient (r = 0.9999). No interference was observed from common excipients informulations. The results show a simple, accurate, fast and readily applied method to the determination ofmethyldopa in pharmaceutical products. The analytical results obtained for these products by the proposedmethod are in agreement with those of the Brazilian Pharmacopoeia procedure at 95% confidence level.
Fast determination of minoxidil by photometric flow titration
Authors: De Sousa Rogério Adelino , Semaan Felipe Silva , Baio José Augusto Fragale , Cavalheiro Éder Tadeu Gomes
Published: July 2023

A photometric flow titration based on the redox reaction between KMnO 4 and minoxidil isdescribed. The best titration results were observed at 3.20 x 10 -4 mol L -1 KMnO 4 and 1.00 x 10 -3 mol L -1minoxidil, using the minoxidil solutions as titrant. The flow rate was fixed at 17 mL min -1 and the titrantwas added to the system in aliquots of 500 μL, the color changes were monitored at 550 nm. The methodwas applied to commercial samples and compared with the results from a chromatographic procedure.Recoveries from 97.6 to 102.8 % were observed depending on the sample. Comparison with thechromatographic procedure reveled relative errors of 3.5 - 4.0 %.
Síntese e caracterização textural do catalisador CeO2 /TiO2 obtido via sol-gel: fotocatálise do composto modelo hidrogenoftalato de potássio
Authors: Valente José Pedro Serra , Araújo Adriana Barbosa , Bozano Dorotéia de Fátima , Padilha Pedro Magalhães , Florentino Ariovaldo de Oliveira
Published: July 2023

Este trabalho descreve um método de modificação do TiO 2 obtido pelo processo sol-gel, através da adição de óxido de cério no momento da síntese. O material foi caracterizado por adsorção de N 2 a 77K. A adição de CeO 2 aumenta a área específica do catalisador em 135% e reduz o diâmetro de poros. A atividade catalítica desses materiais foi verificada frente à reação de foto-decomposição do hidrogenoftalato de potássio e comparada ao TiO 2 comercial P25 da Degussa.
Determinação simultânea de NADH e ácido ascórbico usando voltametria de onda quadrada com eletrodo de carbono vítreo e calibração multivariada
Authors: Barthus Rosangela Cristina , Mazo Luiz Henrique , Poppi Ronei Jesus
Published: July 2023

O método dos mínimos quadrados parciais (PLS) foi aplicado aos dados obtidos por voltametriade onda quadrada para a determinação simultânea de ácido ascórbico (AA) e do co-fator b-nicotinamidaadenina dinucleotídeo (NADH) em misturas sintéticas. As curvas voltamétricas foram obtidas em tampãofosfato 0,2 mol L -1 (pH 8,0). Foi possível verificar que o método PLS permite a determinação destescompostos simultaneamente nas condições escolhidas. Os resultados mostraram um erro relativo máximode 1,7% para o NADH e 2,1 % para o AA. A metodologia proposta é simples e desenvolvimentosposteriores podem torná-la útil para análises in vivo.
Determinação de cádmio em amostras de urina e soro humano por espectrometria de absorção atômica em forno de grafite usando irídio como modificador permanente
Authors: Pinto Frederico Garcia , Rey Ulisses Vilela , Ansaloni Lílian Márcia Silva , Andrada Daniel , Da Silva José Bento Borba
Published: July 2023

No presente estudo, foram investigadas diferentes substâncias para atuarem como modificadoresquímicos na determinação direta de cádmio em soro e urina humanos sem digestão prévia das amostras.A preparação da amostra foi feita diretamente nos copos do amostrador automático por diluição 1+4 desoro e 1+1 de urina com ácido nítrico 1% v/v contendo 0.02% v/v de cloreto de tricetil metil amônio(CTAC). Foram investigadas as melhores condições de determinação por meio de curvas de temperaturade pirólise e atomização na presença da matriz e do analito levando-se em conta a forma do pulso deabsorção, baixas temperaturas na atomização, fundo corrigido e sensibilidade. Foram efetuados estudosna ausência de modificador e com a mistura universal em solução de Pd e Mg (10 e 15 μg, respectivamente)e com rutênio (500 μg) e irídio (500 μg) como modificadores permanentes. Para Ir permanente, as massascaracterísticas foram 0.8 pg para soro e 0.7 pg para urina (recomendado de 2 pg). Na investigação do usode Ir permanente, foi observado que o pico foi simétrico, retornando à linha de base em 3s e com fundocorrigido completamente com valores ótimos por pirólises e atomização de 300 e 1000°C para soro e 300 e1100 o C para urina.
Thermal degradation behaviour of some polydithiooxamide metal complexes
Authors: Al-Maydama Hussein , El-Shekeil Ali , Khalid Maarib A. , Al-Karbouly Ashour
Published: July 2023

The thermal decomposition behavior of the Fe(II), Co(II), Ni(II) and Zn(II) complexes ofpolydithiooxamide has been investigated by thermogravimetric analysis (TGA) at a heating rate of20°C min -1 under nitrogen. The Coats-Redfern integral method is used to evaluate the kinetic param-eters for the successive steps in the decomposition sequence observed in the TGA curves. The process-es of thermal decomposition taking place in the four complexes are studied comparatively as the TGAcurves indicate the difference in the thermal decomposition behavior of these complexes. The thermalstabilities of these complexes are discussed in terms of repulsion among electron pairs in the valenceshell of the central ion and electronegativity effects.
Magnetic, thermal and spectral characterization of 2,6-dimethoxybenzoates of Co(II), Ni(II) and Cu(II)
Authors: Ferenc Wieslawa , Walków-Dziewulska Agnieszka , Sarzyński Jan
Published: July 2023

The complexes of 2,6-dimethoxybenzoic acid anion with ions of Co(II), Ni(II), and Cu(II)have been synthesized as polycrystalline solids, and characterized by elemental analysis, spectroscopy,magnetic studies, and also by X-ray diffraction and thermogravimetric measurements. The analysedcomplexes have following colours: pink for Co(II), green for Ni(II), and blue for Cu(II) compounds.The carboxylate group binds as monodentate, and bidentate bridging and chelating ligands. On heat-ing in air to 1173 K the complexes decompose in four, three or two steps. At first, they dehydrate inone or two steps to anhydrous salts, that next decompose to oxides of the respective metals. The solu-bility of the investigated dimethoxybenzoates in water at 293 K is of the order of 10 -2 mol/dm 3 . Theirmagnetic moments were determined in the temperature range of 76-303 K. The results reveal the com-pounds of Co(II) and Ni(II) to be high-spin complexes and that of Cu(II) to form dimer.
Kinetic evaluation of the dehydration of Yb(III) Lu(III) and Y(III) 4-chlorobenzylidenepyruvate by thermogravimetry (TG)
Authors: Fernandes Nedja Suely , De Araujo Antônio Souza , Ionashiro Massao
Published: July 2023

The dehydration kinetic of Yb, Lu and Y 4-chlorobenzylidenepyruvate was studied byusing thermogravimetry and the kinetics parameters obtained by Flynn and Wall method suggest thatthe dehydration step follows a first order mechanism. The activation energies calculated were 103.6,96.6 and 97.2 kJ/mol and the lifetime considering the temperature of 31 and 101 o C for the dehy-dration of these compounds were 23, 26, 31 minutes and 0.6, 1.3 and 1.4 seconds, respectively. Theresults have similar values and suggest that the water is attached in the same way.
Determination of the shaping behavior of thermoplastic composite materials required for simulation of thermoforming
Authors: Solovyov R. I. , Safin A. R. , Balkaev D. A. , Batrakov V. V. , Amirova L. M.
Published: July 2023

The shaping of composite consolidated plates into products is a complex process. To obtain a defect-free product, we have to bear in mind that thermoplastics reinforced with a fabric practically do not stretch, and their shaping behavior is determined by the mechanisms of shear deformations within a layer or between layers, by the processes of sliding a composite over the surface of tooling and by the flexural rigidity of the consolidated plates. Due to the complex behavior of the material during deformation, the optimization of the thermoforming process by trial and error is rather expensive in implementation and can be successfully replaced by a preliminary simulation. The available software packages intended for modeling the thermoforming process which provide construction of a correct model of the material consistent with the reality, require the introduction of input parameters for the drape of the consolidated plate, its flexural stiffness, the coefficient of friction between layers and with tooling. However, until now there are no standards for their measurement, which significantly hinders the process of modeling the thermoforming of products from consolidated plates based on thermoplastic binders. We present experimental data on the determination of some physical and mechanical properties of carbon fiber reinforced plastics based on polypropylene PP01030, including tensile-displacement tests of the sample, tests with a moving frame that provide evaluating the shear behavior of thermoplastic composite materials, as well as tests for determining the interlayer friction and friction of a composite with tooling. The tests were carried out at the melting temperature of the matrix using specialized tooling, made taking into account the experience of foreign research groups in physical and mechanical testing of thermoplastic composite materials. A method for determining the flexural rigidity of thermoplastic carbon fiber reinforced plastics is proposed. The presented tooling does not require the application of a complex force, and needs only standard tensile test clamps of the testing machine. The data obtained from the physicomechanical tests can be used in virtual modeling of the thermoforming process of consolidated composite plates.
Anchoring the Past in Virginia Woolf’s To the Lighthouse
Authors: KALKAN Oğuzhan
Published: July 2023

As a modernist writer, Virginia Woolf was influenced by Marcel Proust in terms of structuring her writing around the concept of time and memories. Unlike Proust, who questions the validity and fluidity of past remembrances and tries to make a confession by writing his memories, Woolf tries to find a balance between the past and present through the use of memories. In her article A Sketch of the Past, she mentions that writing about the past helped her face and settle accounts with it. She calls small remembrances of the past when she could realize herself as “moments of being” and they help her anchor and stabilize her past with the present. In her writing, places like a clock tower or a lighthouse turn into sites of memory where she could see the looming presence of the past over the present and navigate around it to form the present. As sites of memory, these colossal structures let her navigate through the nebulous presence of time where exterior events lose their hegemony and help her to understand herself her location in space and time. To the Lighthouse is an important source for understanding Woolf’s concept of memory. In this novel, she fuses the past and the present; the objects and people in order to find a harmonious balance of life. This paper aims to investigate the impact of sites of memory and the relationship of the past and the present on the formation of identities of individuals in To the Lighthouse.
SHAPE-SHIFTING ARCHITECTURE - AN APPROACH TOWARDS SUSTAINABILITY
Authors: Mohie El-din Reham
Published: July 2023

In a world, where going sustainable became imperative, new approaches emerge every day in many disciplines to achieve it. The uprising approaches are usually a result of technological innovations and cultural/human factors. While their success and continuity depend greatly on the economic factor. Recently, experts called for a more dynamic architecture that adapts to users and environment, not only users adapting with, like in static architecture. As a result, shape-shifting architecture emerged. Hence, the study aims at investigating it and its role in enhancing and promoting sustainability, particularly in developing nations. The research discussion and findings provided a fulfilling overview of this trend. The study, which was substantiated by numerous case studies, classified shape-shifting architecture into two possible categories and four types. It was discovered that 4D (Dimension) printing can act as a great tool in developing two of its types; which are connected to shape-shifting materials. Finally, the results indicated that this architecture might encounter numerous issues if it were to be scaled up and implemented in developing nations.