bluuebunny/crossref_metadata_2025 huggingface dataset:
PENDAMPINGAN PENULISAN PROPOSAL PADA KELOMPOK BATIK LESTARI DI DESA SIDOMULYO KABUPATEN MADIUN
Authors: Berlianantiya Maretha , Andriani Dwi Nila , Daroin Ana Dhaoud , Wirawan Yahya Reka , Lestari Ayu
Published: July 2023

Kegiatan pengabdian masyarakat yang dilakukan di Desa Sidomulyo, Kecamatan Sawahan, Kabupaten Madiun berupa pendampingan penulisan proposal hibah dari Kementerian Pariwisata dan Ekonomi Kreatif (Kemenparekraf) pada masa pandemi Covid 19. Latar belakang melakukan kegiatan ini dikarenakan para pengrajin batik kurang memiliki pengetahuan tentang pembuatan proposal hibah dan usaha dari Kelompok  Batik Lestari ini ini masih skala mikro sehingga masih membutuhkan tambahan dana. Tujuan dari kegiatan ini adalah menambah pengetahuan ibu- ibu pengrajin tentang cara mempersiapkan dan menulis proposal bantuan sehingga bisa lolos didanai. Metode pelaksanaan pengabdian ini adalah pelatihan proposal dengan materi penyiapan syarat-syarat kelengkapan administrasi dan sistematika penulisan proposal agar lolos didanai. Hasil kegiatan berupa bukti kelengkapan administrasi di Kelompok Batik Lestari dan hasil berupa proposal Kemenparekraf yang sudah siap dikirim. Berdasarkan evaluasi bahwa usaha Kelompok Batik Lestari belum memiliki kelengkapan syarat administrasi.
PELATIHAN MEMBUAT ES MENTIMUN DAN PEMBUATAN POJOK BACA DI DUSUN SUCI KECAMATAN BALEREJO KABUPATEN MADIUN
Authors: Apriyanti A , Hariyani Diyah Santi , Setyahety Ririh Anggraini , Jarwa Tri , Anggara Tegar Putra , Sari Dwi Kartika
Published: July 2023

Tujuan kegiatan pengabdian masyarakat yang dilakukan adalah untuk meningkatkan keterampilan dan meningkatkan literasi yaitu berupa pelatihan membuat es mentimun dan pembuatan pojok baca yang harapannya dapat memberikan dampak positif bagi warga. Metode yang dilakukan dalam kegiatan ini adalah pelatihan dan pembuatan pojok baca. Subjek kegiatan ini adalah kelompok Ibu PKK dan warga dusun Suci Kecamatan Balerejo Kabupaten Madiun. Hasil dari pelatihan munculnya jenis UMKM baru dan juga telah mengenalkan balita dan orangtua balita pada program pojok baca untuk menambah minat membaca. Pelatihan UMKM pembuatan es mentimun dan pojok baca diharapkan dapat memberikan perubahan yang signifikan bagi dusun Suci. Sehingga dusun suci dapat setara dengan dusun lainnya yang ada di desa Kebonagung.
PENINGKATAN LITERASI KEUANGAN PELAKU UMKM DI DESA CIBITUNG TENGAH
Authors: Wibowo Agus , Respati Dwi Kismayanti , Suparno S , Saptono Ari , Suherman S , Pahala Indra
Published: July 2023

Kajian tentang literasi keuangan kaitannya dengan kewirausahaan berkembang sangat signifikan hingga saat ini. Pengetahuan dan keterampilan mengakses aneka sumber daya keuangan memungkinkan pelaku usaha untuk berinvestasi secara strategis guna mendapatkan keunggulan kompetitif. Kegiatan pengabdian kepada masyarakat (PKM) bagi pelaku UMKM di Desa Cibitung Tengah, Kecamatan Tenjolaya, Bogor, bertujuan mengedukasi pentingnya pemahaman keuangan atau literasi keuangan mereka. Selain itu, PKM juga dibarengi dengan bimbingan inklusi keuangan mengenai pemenuhan kebutuhan permodalan dan akses dana untuk kegiatan usaha para pelaku UMKM. Secara keseluruan, kegiatan PKM terlaksana sesuai target. Hal ini dapat dilihat dari animo peserta kegiatan yang sangat tinggi, sejak pembukaan PKM sampai dengan penutupan. Kendala yang dihadapi antara lain: ketidaktersediaan perangkat suara yang sesuai, sehingga penyampaian materi tidak terdengar jelas oleh peserta, dan internet yang tidak lancar, menjadikan praktik online tidak berjalan efektif. Kegiatan PKM perlu melibatkan banyak pihak dari kalangan perguruan tinggi, maupun pemangku kepentingan terkait. Kolaborasi ini akan berkontribusi positif bagi para pelaku UMKM di Desa Cibitung Tengah, baik dari sisi kebijakan maupun pengembangan usaha.
Ballet without Borders by Vyacheslav Samodurov: the Formation of the Dancer’s Style on the European Stage
Authors: Khisamov Denis N.
Published: July 2023

Vyacheslav Vladimirovich Samodurov is the embodiment of Russian modern ballet. The period when he worked with the companies of the Dutch National Ballet and the Royal British Ballet was a key one not only for Samodurov as a dancer, but also had a significant influence on his future activities as a director and choreographer. Samodurov’s productions have original and recognizable stylistic features and are of interest to audiences and critics, and are studied by theater and art historians. Samodurov’s productions have original and recognizable stylistic features and are of interest to audiences and critics, and are studied by theater and art historians. At the same time, the path of Samodurov-dancer has not received a comprehensive comprehension from the perspective of the evolution of his style and image. This fact determines the relevance of the topic of the article. The purpose of the research is to identify the role and influence of the foreign period of the master on the formation of his individual style as a choreographer. The novelty of the article lies in the fact that for the first time a study of a scientific nature raises the question of combining the art of Samodurov’s national ballet school and the experience he gained in the European ballet. On the basis of analysis of the available facts of Samodurov’s biography, memoirs of his colleagues from the European companies, and information obtained in conversations with the choreographer, generalizations were made which testify to preservation of V.V. Samodurov’s creative experience. A generalization has been made to show that the artistic experience of Samodurov, gained during his period of collaboration with foreign companies, has been preserved in his contemporary work as Artistic Director and Director of the Ekaterinburg State Academic Opera and Ballet Theatre (also known as the “Ural Opera Ballet”).
The Ideas of French Existentialism in the Drama of Jean-Paul Sartre
Authors: Simonova Svetlana A.
Published: July 2023

The article analyses J.-P. Sartre’s philosophical plays, their main ideas and the moral conflicts of the characters. Sartre largely expressed the features of the crisis of European culture in the first half of the twentieth century. The problems of freedom, responsibility, loneliness and existential choice that were on the agenda then are relevant again today. On the threshold of a change of cultural paradigms we are also experiencing a crisis of spiritual values, turning to the basic categories of ethics, and dealing with complex moral and political issues. In this context, many of the problems touched upon by Sartre take on new meanings. Particularly important today are the issues of responsibility for personal choice, in particular the understanding of the inevitability of choice, the involvement of everyone in the events taking place, the need to express and defend one’s position. Refusal to make a choice is in itself a choice, we are in any case engaged. The problem of the choice between the personal and the social, between the observance of the fundamental precepts and the commitment to the common cause, also acquires new meanings. Sartre’s ethics is anarchic and socially significant at the same time. The philosopher rejects God as the guarantor of justification and some supreme, governing force, but asserts an ethics of personal responsibility. The article analyses the understanding of love, which the French existentialist interprets as sacrifice in his plays. From Sartre’s point of view, a person is a project of the self, a person can level bad deeds with good deeds and vice versa. Thus, the philosopher in his plays demonstrates the possibility of everyone’s struggle with his passions, personal perfection without higher intervention. The conclusion is that Sartre places the ethical above the aesthetic, affirms the involvement of everyone in the social situation, and demonstrates the application of philosophy in real life. His main ideas are not only of academic interest today, but also of practical interest.
Study on induction of Allium sativum L. hairy roots with antibacterial activity against Vibrio
Authors: Vu Thi Bach Phuong , Nguyen Phuong Anh , Nguyen Phuoc Quy Thang , Tran Phi , Quach Ngo Diem Phuong
Published: July 2023

Allium sativum L. has long been used to improve the health of humans and other species due to its antibacterial activity. Applying biotechnology to create a stable and large-scale production process for Allium sativum L., medicinal herbs by hairy root culture technology are essential. However, Allium sativum L. is a monocotyledonous plant, so its ability to induce hairy roots is lower than that of dicotyledonous plants, which requires more research investment. In this study, we succeeded in inducing hairy roots in monocotyledonous plants Allium sativum L, by evaluating parameters impacting hairy root induction such as plant organs, acetosyringone concentration, infection time and co-culture time. The results showed that the optimal procedure for induction of Allium sativum L. hairy roots by Agrobacterium rhizogenes ATCC 15834 was as follows: 10 day old in vitro Allium sativum L. sprouts were wound and soaked in 100 μM acetosyringone solution for 10 min, infection time was 5 minutes, co-culture time was 48 hours cultured on B5 medium (Gamborg B5 medium) having the induction rate of hairy roots reaching 64.4% after 14 days of culture. Allium sativum L. hairy roots had good antibacterial effect against all three strains of Vibrio cholerae, Vibrio parahaemolyticus and Vibrio vulnificus because the MBC/MIC ratios are all less than or equal to 2. Especially, for V. cholerae (MIC = 1.84 mg/ml, MBC = 2.11 mg/ml), hairy roots have antibacterial activity equivalent to tetracycline antibiotics and better than non-infectious roots.
Increasing the robustness of SIFT-MS volatilome fingerprinting by introducing notional analyte concentrations
Authors: Benchennouf Amina , Corion Matthias , Dizon Angelica , Zhao Yijie , Lammertyn Jeroen , De Coninck Barbara , Nicolaï Bart , Vercammen Joeri , Hertog Maarten
Published: July 2023

Selected-ion-flow-tube-mass-spectrometry (SIFT-MS) is an analytical technique for volatile detection and quantification. SIFT-MS can be applied in a ‘white box’ approach, measuring concentrations of target compounds, or as a ‘black box’ fingerprinting technique, scanning all product ions during a full scan. Combining SIFT-MS full scan data acquired from multi-batches or large-scale experiments remains problematic due to signal fluctuation over time. The standard approach of normalizing full scan data to total signal intensity was insufficient. This study proposes a new approach to correct SIFT-MS fingerprinting data. In this concept, all the product ions from a full scan are considered individual compounds for which notional concentrations can be calculated. Converting ion count rates into notional analyte concentrations accounts for any changes in instrument parameters. The benefits of the proposed approach are demonstrated on three years of data from both multi-batches and long-term experiments showing a significant reduction of system-induced fluctuations providing a better focus on the changes of interest.
Regularized indirect learning improves phage display ligand discovery
Authors: Brown Joseph S. , Tseo Yitong , Lee Michael A. , Wong Jeffrey Y.-K. , Yang Soojung , Cho Yehlin , Kim Chae Rin , Loas Andrei , Derda Ratmir , Gomez-Bombarelli Rafael , Pentelute Bradley L.
Published: July 2023

Phage display is commonly employed for the discovery of high affinity ligands to biomolecular targets. However, ranking the discovered ligands for their affinity and specificity to the target is obscured by genetic amplification bias and amplification of target-unrelated phage, resulting in inefficient experimental validation and potentially intractable discovery. Here, we describe the use of indirect machine learning (ML) to improve the efficient discovery of target-specific peptide ligands from next-generation sequencing (NGS) data. We combine peptide sequence information (input) with experimental fitness scores (output) of the individual peptide performance across the rounds of bio-panning in a bidirectional long short-term memory (BiLSTM) architecture. Because the fitness scores contain bias, we use regularization to facilitate limited indirect learning and effectively process the peptide sequence information, while still using the predicted fitness scores to rank the peptides. Peptides containing high-affinity binding motifs to our target were ranked by the regularized model more than threefold higher, compared to any combination of experimental fitness scores. Baseline models of random forest (RF) and -nearest neighbor (KNN) demonstrated slightly lower performance but also demonstrated the importance of regularization. However, the BiLSTM model emerged as the most robust, as it was less sensitive to the peptide representation and the specific fitness score used. Shapley residue analysis generated interpretable structure-activity-relationship (SAR) by providing insight into predicted affinity-driving residues and physicochemical properties across the entire peptide and as well as at motif-specific positions. We expect that this approach will elucidate high-affinity ligands against a multitude of targets, vastly improving the discovery capability of phage display.
Ligand-Induced Chirality in Novel 2D Tin Iodide Perovskite Cl-MBA2SnI4
Authors: Malavasi Lorenzo , Coccia Clarissa , Morana Marta , Mahata Arup , Kaiser Waldemar , De Angelis Filippo , Mosconi Edoardo , Moroni Marco , Milanese Chiara , Albini Benedetta , Galinetto Pietro , Porta Alessio
Published: July 2023

Chiral perovskites possess a huge applicative potential in several areas of optoelectronics and spintronics. The development of novel lead-free perovskites with tunable properties is a key topic of current research. Herein, we report a novel lead-free chiral perovskite, namely (R/S-)ClMBA2SnI4 and the corresponding racemic system. The reported ClMBA2SnI4 samples exhibit a low band gap (2.12 eV) together with broad emission extending in the red region of the spectrum (1.7 eV). Chirality transfer from the organic ligand induces chiroptical activity in the 465-530 nm range. Density function theory calculations show a Rashba type band splitting for the chiral samples and no band splitting for the racemic isomer. Self-trapped exciton formation is origin of the large Stokes shift in the emission. Careful correlation with analogous lead and lead-free chiral perovskites confirms the role of the symmetry-breaking distortions in the inorganic layers associated with the ligands as the source of the observed chiroptical properties providing also preliminary structure-property correlation in 2D chiral perovskites.
The Tension Activated Carbon–Carbon Bond
Authors: Sun Yunyan , Kevlishvili Ilia , Kouznetsova Tatiana , Burke Zach , Craig Stephen , Kulik Heather , Moore Jeff
Published: July 2023

Over the last century, chemists have mastered the ability to precisely connect pairs of carbon atoms for the synthesis of complex structures ranging from pharmaceuticals to polymeric materials. Less attention has been given to precision C–C bond disconnection. In the past two decades, mechanical force has emerged as a unique vectoral stimulus to drive selective and productive C–C bond activations, leading to distinct reaction trajectories, as well as unprecedented mechanoresponsive materials. However, the molecular details of force to chemical transduction are poorly captured by conventional chemical intuition, making it challenging to understand and predict structure-reactivity relationships under tension. Here, we utilize a physical organic model inspired by the classical Morse potential and its differential forms to identify the effective force constant (keff) and the force-free reaction energy (ΔE) as key molecular features that govern mechanochemical kinetics. Through a comprehensive experimental and computational investigation with four norborn-2-en-7-one (NEO) mechanophores, we establish the relationship between these features and the force-dependent energetic changes along the reaction pathways. We found a linear model accurately predicts the transition force (f*) required for C–C bond activation in over 30 mechanophores. These results demonstrate a general mechanistic framework for mechanochemical reactions under tensile force, and provide a highly accessible tool for the large-scale computational screening in the design of mechanophores.
Educación para la globalidad: experiencias de internacionalización
Authors: Moreno Vargas María Fernanda , Puello Socarrás Gregorio Enrique , Reina Zambrano Juanita , Cárdenas Riaño Fredy Esteban , Mendoza Pilar , Hoyos Ensuncho Maryluz , Susunaga José Alfredo , Mendoza Sánchez Pablo Andrés , Ortiz Tole Bertha Alejandra , Rondón Diego Andrés , Cuervo-Bejarano William Javier , Membrillo-Hernández Jorge , Restrepo Pineda Jair Eduardo , Gallego Hurtado Andrés Felipe , Meneses Castañeda María Érica , Pabón Trujillo Herminio , Mardones Rodríguez Daniela , Herrera Merino Carmen Gloria , Rueda Mahecha Yohanna Milena , Bueno Pizarro Natalia Andrea , Patiño Aristizábal Julián Alfonso , Galvis Arcila Sebastián
Published: July 2023

Esta publicación recopila experiencias de internacionalización en diferentes categorías que reflejan las estrategias orientadoras establecidas en la nueva Política de Internacionalización de UNIMINUTO (2022) que: Propende por la incorporación de las dimensiones internacional, intercultural y global en las funciones sustantivas, de apoyo y de servicio favoreciendo la transformación social de los territorios a partir de la comprensión de los desafíos globales en perspectiva local. Para ello, la Política está orientada por diversas estrategias, interrelacionadas, que propician la participación de todos los miembros de la comunidad académica de forma integral e incluyente.
Talent management errors in recruiting - Case study approach
Authors: Mustafa Salimi , Chandrasekar K. S.
Published: July 2023

The fundamental goal of every organization is to provide quality products and services, be a pioneer in the corporate market, and achieve maximum customer satisfaction. The current concern pertains to how organizations can effectively implement these goals within a practical working environment. This study focuses on improving quality in the recruitment process by highlighting means and mediums that contribute to biased or faulty recruitment, resulting in the loss of best-fit candidates. Faulty or biased recruitment mainly refers to the conscious and subconscious biases exhibited by recruiters toward the candidates. This descriptive study is based on a real case study, employing the observation method of data collection to shed light on the issues caused by recruitment biases within an organization. The study also demonstrates a set of key factors that cause faulty recruitment and suggests possible solutions. The findings elaborate that faulty recruitment is due to cognitive biases, unstructured interview methods, and human errors. The recommendations show further precautions to be considered to avoid biases in the recruitment process.
Earthwork and the Strategies of Concrete Construction Technology Application in Building Construction
Authors: Feng Lisheng
Published: July 2023

The pouring of mass concrete and earthwork account for a large proportion in building construction, which can play a decisive role in the quality of the building. Therefore, it is necessary to understand the technology of earthwork and concrete engineering in the process of building construction and propose reasonable application strategies.
Meta-Analysis of the Effect of the Escape Room Teaching Method on Nursing Education
Authors: Yang Xin , Hao Yuying , Fan Shanhong , Zhang Lina , Song Rui , Liu Jie , Bian Mei
Published: July 2023

Objectives: A meta-analysis was conducted to systematically evaluate the effect of the escape room teaching method on nursing education. Methods: We searched PubMed, Medline, Web of Science, CNKI, VIP, and Wanfang databases, with a search time frame from the first day of database establishment to October 2022. Two researchers evaluated the quality of the obtained literature and extracted the data. The RevMan5.4 software was used for meta-analysis. Results: A total of 7 studies involving 1487 nursing students were included. Compared with the control group, the escape room teaching method improved the professional performance of nursing students [standardized mean difference (SMD) = 0.98, 95% confidence interval (CI; 0.38,1.59), P < 0.0001]. The critical thinking ability of nursing students was enhanced [mean difference (MD) = 12.64, 95% CI (7.91,17.37), P < 0.0001], and the investment level of nursing students in learning was improved [MD = 4.18, 95% CI (1.74,6.62), P < 0.0001]. Conclusion: The escape room teaching method can improve nursing students’ professional performance, critical thinking ability, and learning engagement level. There is no significant difference in the impact of nursing teaching satisfaction, and there is still a lack of data support. This paper is limited by the quality and quantity of included literature, and more high-quality studies are still needed to further demonstrate the above conclusions.
Exploring the Mechanism of Circ-vgll3 in Osteogenically Differentiated Human Bone Marrow Mesenchymal Stem Cells
Authors: Huo Yajie , Mao Yu , Luo Fang , Zhang Fengjiao , Xie Lifang , Zhang Xiaoke , Liu Kai , Sun Ling , Liu Hongmei , Song Lige , Wang Huanhuan , Kang Zhiqiang
Published: July 2023

Objective: To explore the mechanism of circRNA-vgll3 in osteogenic differentiation of human bone marrow mesenchymal stem cells. Methods: BMSCs cells were transfected with circRNA-vgll3, and divided into circRNA-vgll3 high-level group, circRNA-vgll3 low-level group, and negative control group (circRNA-vgll3 not transfected) according to the amount of transfection. The proliferation and apoptosis of BMSCs osteoblasts in each group were analyzed, and the alkaline phosphatase (ALP) activity, type I collagen gray value, bone morphogenetic protein 2 (BMP-2), Runx2 protein, and mRNA expression levels were detected. Results: The circRNA-vgll3 low-level group had a significant inhibitory effect on the proliferation of BMSCs osteoblasts, and the apoptosis rate of the circRNA-vgll3 low-level group was significantly higher than that of the circRNA-vgll3 high-level group ( P < 0.05 ); ALP activity, type I collagen gray value, BMP-2, Runx2 protein, and mRNA expression levels in the high-level circRNA-vgll3 group were significantly higher than those in the low-level circRNA-vgll3 group, and the difference was statistically significant (P < 0.05). Conclusion: Overexpression of circRNA-vgll3 can promote the osteogenic differentiation ability of BMSCs, while low expression of circRNA-vgll3 can inhibit the osteogenic differentiation ability of BMSCs. The main mechanism of action is that circRNA-vgll3 can affect osteogenic differentiation by regulating the Runx2 protein.
DOCUMENTO CONCEPTUAL DE LA INICIATIVA CHINA DE SEGURIDAD GLOBAL: “ESTAMOS CONVENCIDOS QUE LAS TENDENCIAS HISTÓRICAS DE PAZ, DESARROLLO Y COOPERACIÓN SON IMPARABLES”
Authors: El Editor
Published: July 2023

DOCUMENTO CONCEPTUAL DE LA INICIATIVA CHINA DE SEGURIDAD GLOBAL: “ESTAMOS CONVENCIDOS QUE LAS TENDENCIAS HISTÓRICAS DE PAZ, DESARROLLO Y COOPERACIÓN SON IMPARABLES”
Perspectiva e capacidade de regeneração do cerrado no entorno do Parque Estadual do Lajeado, Palmas/TO (Perspective and regeneration capacity of the cerrado in the surroundings of Lajeado State Park, Palmas / TO)
Authors: Furtado Simonní Elias , Cristo Sandro Sidnei Vargas de
Published: July 2023

A Serra do Lajeado, onde se observa, claramente, a presença do domínio morfoclimático do cerrado, vem desde os primórdios da criação da cidade de Palmas, capital do estado do Tocantins, sofrendo com as expansões, urbana e atividades agropecuárias, fato este que culminou na criação da Área de Representação Ecológica da Serra do Lajeado, em 1989. Ressalta-se que a partir da década de 1990 essa área passou a denominar-se Área de Proteção Ambiental (APA) - Serra do Lajeado. Ainda com intuito resguardar o a biodiversidade presente na APA Serra do Lajeado, em 2001 ocorreu à criação do Parque Estadual do Lajeado (PEL), (SEPLAN, 2003, p. 25). Neste sentido a presente pesquisa busca analisar a perspectiva e capacidade de regeneração do cerrado no entorno do PEL a luz do uso múltiplo do solo. Para tanto, baseou-se metodologicamente no uso de técnicas relacionadas ao Sistema de Informações Geográficas - SIG, visando à espacialização dos dados, bem como, utilizou-se de modelos matemáticos com base na regressão linear, objetivando o estabelecimento de projeções de uso do solo agropecuário, com vegetação de cerrado e urbanização. Isto possibilitou, também, traçar as perspectivas de regeneração do cerrado a curto, médio e longo prazo. Palavras-Chave:Domínio Morfoclimático do Cerrado, Projeções de Uso do Solo, Regeneração do Cerrado.  A B S T R A C TThe Serra do Lajeado, where the presence of the morphoclimatic domain of the cerrado is clearly observed, dates from the beginnings of the city of Palmas, the capital of the state of Tocantins, suffering from urban sprawl and agricultural activities. in the creation of the Ecological Representation Area of Serra do Lajeado, in 1989. It is emphasized that from the 1990s this area was renamed the Environmental Protection Area (APA) - Serra do Lajeado. Still in order to safeguard the biodiversity present in the APA Serra do Lajeado, in 2001 the creation of the State Park of Lajeado (PEL), (Seplan, 2003, p.25). In this sense, the present research seeks to analyze the perspective and regeneration capacity of the cerrado in the surroundings of the PEL in light of the multiple use of the soil. In order to do so, it was methodologically based on the use of techniques related to the Geographic Information System (GIS), aiming at the spatialization of data, as well as using mathematical models based on linear regression, aiming at the establishment of land use projections agriculture, with cerrado vegetation and urbanization. This has also made it possible to outline the prospects for cerrado regeneration in the short, medium and long term.Keywords: Cerrado Morphoclimatic Domain, Soil Use Projections, Cerrado Regeneration.
Sorption kinetics and intrapaticulate diffusivity of As(III) bioremediation from aqueous solution, using modified and unmodified coconut fiber
Authors: Igwe Jude Chibuzo , Augustine Augustina
Published: July 2023

The pollution and toxicity problems posed by arsenic in the environment have long beenestablished. Hence, the removal and recovery remedies have been sought, bearing in mind the effi-ciency, cost effectiveness and environmental friendliness of the methods employed. The sorption kinet-ics and intraparticulate diffusivity of As (III) bioremediation from aqueous solution using modified andunmodified coconut fiber was investigated. The amount adsorbed increased as time increased, reach-ing equilibrium at about 60 minutes. The kinetic studies showed that the sorption rates could bedescribed by both pseudo-first order and pseudo-second order process with the later showing a betterfit with a value of rate constant of 1.16 x 10 -4 min -1 for the three adsorbent types. The mechanism ofsorption was found to be particle diffusion controlled. The diffusion and boundary layer effects werealso investigation. Therefore, the results show that coconut fiber, both modified and unmodified is anefficient sorbent for the removal of As (III) from industrial effluents with particle diffusion as the pre-dominant mechanism.
Magnetic, thermal and spectral properties of Ni(II) 2,3- , 3,5- and 2,6-dimethoxybenzoates
Authors: Ferenc Wieslawa , Walków-Dziewulska Agnieszka , Sarzyński Jan , Paszkowska Barbara
Published: July 2023

Complexes of Ni(II) 2,3-, 3,5- and 2,6-dimethoxybenzoates have been synthesized, theirphysico-chemical properties have been compared and the influence of the position of –OCH3 sub-stituent on their properties investigated. The analysed compounds are crystalline, hydrated salts withgreen colour. The carboxylate ions show a bidentate chelating or bridging coordination modes. Thethermal stabilities of Ni(II) dimethoxybenzoates were investigated in air in the range of 293-1173 K.The complexes decompose in three steps, yelding the NiO as the final product of decomposition. Theirsolubilities in water at 293 K are in the order of 10 -2 -10 -4 mol⋅dm -3 . The magnetic susceptibilities forthe analysed dimethoxybenzoates of Ni(II) were measured over the range of 76-303 K and the mag-netic moments were calculated. The results reveal that the complexes are the high-spin ones and theligands form the weak electrostatic field in the octahedral coordination sphere of the central Ni(II) ion.The various position –OCH3 groups in benzene ring cause the different steric, mesomeric and induc-tive effects on the electron density in benzene ring.
Caracterização das frações das substâncias húmicas de diferentes tamanhos moleculares
Authors: Sanches Sergio Marcos , De Campos Sandro Xavier , Vieira Eny Maria
Published: July 2023

Neste trabalho realizou-se a extração das substâncias húmicas (SH) provenientes da turfacoletada às margens do rio Mogi-Guaçu, segundo metodologia descrita por Rosa et al., 2000. As SHforam fracionadas em um equipamento de ultrafiltração em três faixas de tamanhos moleculares 30 –100 KDa, <30 KDa e >100 KDa. As frações foram caracterizadas por diferentes técnicas analíticas,infravermelho (IV), análise elementar, espectroscopia na região do ultravioleta/visível (UV/Vis) eressonância paramagnética eletrônica (EPR). Verificou-se que as frações de menor tamanho molecular(30 – 100 KDa e <30 KDa) possuem um maior número de moléculas com oxigênio ligados, enquantoque a fração de maior tamanho molecular (>100 KDa) apresentou um maior número de moléculasaromáticas. Através dos resultados das análises elementares e de ressonância paramagnética eletrôni-ca, constatou-se que a fração <30 KDa apresentou uma menor porcentagem de carbono, nitrogênio ehidrogênio e uma menor quantidade de radicais livres em relação as demais, indicando que esta fraçãopossui um menor número de anéis aromáticos conjugados. Já nas análises por IV foram observadasbandas características das SH.
Reatividade do [Fe(CO)2(η2-CS2)(PPh3)2] frente a compostos de Cu(I): Síntese de espécies binucleares heterometálicas contendo CS2 em ponte entre Fe(0) e Cu(I)
Authors: Muraoka Teresa Kazuko , Duarte Adriana Pereira , Takahashi Pedro Mitsuo , Nogueira Vânia Martins , De Godoy Netto Adelino Vieira , Mauro Antonio Eduardo
Published: July 2023

Este trabalho contempla a síntese e caracterização espectroscópica de dois compostos carbonílicos heterometálicos do tipo [Fe(CO) 3 (m-CS 2 )(PPh 3 )(CuX)], X = Cl, ClO 4 . Os dados provenientes da espectroscopia no infravermelho e de RMN de 31 P{ 1 H} foram conclusivos quanto à proposição da geometria octaédrica distorcida ao redor do átomo de ferro (0), como também sobre a natureza bimetálica de ambos compostos. Estes dados esclareceram o modo de coordenação dos grupos carbonilos, da trifenilfosfina (PPh 3 ), bem como a disposição do ligante dissulfeto de carbono em ponte entre os átomos de Fe (0) e Cu (I).
Use of modified silica gel for concentrating Pb (II) and Cd (II) occurring in form of complex anions
Authors: Déniz Rubén del Toro , Echevarría Marlene Seijo , Terra Zaida Fernández , Espinosa Ana María Peón , De Moya Humberto Varela
Published: July 2023

The performance of silica gel, modified by the impregnation with a high molecular weightquaternary amine (triethyl octadecyl ammonium iodide), used for the concentration of heavy metalsoccurring in water is studied. The material under study captures Cd, Pb, which are capable of formingstable complexes with I - ions.The results obtained about the metal capture, under dynamic conditions,are described and metal ions are removed by desorption with EDTA and quantified by AAS.
Adsorption of hidrogen peroxide on the surface of silica – titania mixed oxide obtained by the sol-gel processing method
Authors: Gonçalves José Eduardo , Rodrigues Filho Ubirajara Pereira , Franco Douglas Wagner , Gushikem Yoshitaka
Published: July 2023

This work describes the sol-gel mixed oxide SiO 2 /TiO 2 property, ST, as prepared, and submittedto heat treatment a 773 K, STC. SEM and EDS images show, within magnification used, a uniformdistribution of the TiO 2 particles in SiO 2 /TiO 2 matrix. Both, ST and STC adsorb hydrogen peroxide on thesurface and through EPR and UV-Vis diffuse reflectance spectra, it was possible to conclude that thespecies on the surface is the peroxide molecule attached to the Lewis acid site of titanium particlesurface, α Ti(H 2 O 2 ) + . As the material is very porous, presumably the hydrogen peroxide molecule isconfined in the matrix pores on the surface, a reason why the adsorbed species presents an exceptionallong lived stability.
Magnetic, thermal and spectral characterization of 2,4-dimethoxybenzoates of Mn(II), Co(II) and Cu(II)
Authors: Ferenc Wieslawa , Czapla ‪Katarzyna , Sarzyński Jan
Published: July 2023

2,4 - Dimethoxybenzoates of Mn(II), Co(II) and Cu(II) have been synthesized as hydrated or anyhydrous polycrystalline solids and characterized by elemental analysis, IR spectroscopy, magnetic studies and X-ray diffraction measurements. They possess the following colours: Mn(II) – white, Co(II) – pink and Cu(II) – blue. The carboxylate groups bind as monodentate, or a symmetrical bidentate bridging ligands and tridentate. The thermal stabilities were determined in air at 293-1173K. When heated the hydratedcomplexes dehydrate to from anhydous salts which are decomposed to the oxides of respective metals. The magnetic susceptibilites of the 2,4-dimethoxybenzoates were measured over the range 76-303 K and their magnetic moments were calculated. The results reveal the complexes of Mn(II), Co(II) to be high-spin complexes and that of Cu(II) to form dimer.
Aplicação de Al-PILC na adsorção de Cu2+, Ni2+ e Co2+ utilizando modelos físico-químicos de adsorção
Authors: Guerra Denis de Jesus Lima , Airoldi Cláudio , Lemos Vanda Porpino , Angélica Rômulo Simões , Viana Rúbia Ribeiro
Published: July 2023

Amostra de esmectita pertencente a Serra de Maicuru (Estado do Pará, Norte doBrasil, região amazônica) foi pilarizada com Al 13 , A Argila pilarizada com alumínio (Al-PILC)foi caracterizada por DRX, MEV e EDS. Para a análise textural foram utilizadas isotermas deadsorção-desorção utilizando o nitrogênio. Este artigo é dirigido ao estudo da adsorção demetais pesados. A adsorção dos íons de Cu 2+ , Ni 2+ e Co 2+ foi realizadas com a matriz Al-PILC em temperatura ambiente com soluções aquosas contendo os íons metálicos. Os modelosde adsorção adotados foram os de Langmuir, Freundlich e Temkin que foram aplicados aosvalores obtidos experimentalmente com regressão linear. A equação de Langmuir foi o melhormodelo de linearização com r = 0,999. A equação de Freundlich apresentou limitações emaltas concentrações, mas foram obtidos valores (K f e n) bastante aceitáveis utilizando estemodelo. Os parâmetros foram utilizados para calcular a quantidade de N f em função de Cs.
Design of an adsorbent employing activated carbon fiber to remove lead
Authors: Cárdenas-López C. , Camargo Gabriel , Giraldo Liliana , Moreno-Piraján Juan Carlos
Published: July 2023

Zorflex® activated carbon fibers (ACF), reference FM100 198B, are used beforeand after an oxidizing procedure with H 3 PO 4 to study the adsorption of Pb 2+ . The point ofzero charge was determined for the modified and unmodified fiber giving values of 2.3 and4.3, respectively. After oxidizing the ACF, the fiber showed to have a greater Pb 2+ adsorptioncapacity in comparison with the unmodified fiber, which is related with the acid sites increase,where lead was mainly adsorbed. Determination of the BET area was carried out by nitrogenphysisorption at 77K. ACFs presented superficial areas between 1000 and 1500 m 2 /g showingmostly, a microporous structure. The preliminary design of an adsorbent using the modifiedfiber is presented where the fiber superior physicochemical properties over the unmodifiedone are observed.
Electrochemical study and dependence of ‘transition state’ in Co(II) and Ni(II) complexes with some antibiotics and cephalothin
Authors: Khan Farid
Published: July 2023

Electrode kinetics and study of ‘transition state’ with applied potential in case of[M – antibiotics – cephalothin] system were reported at pH = 7.30 ± 0.01 at suitable supportingelectrolyte at 25.0 0 C. The M = Co or Ni and antibiotics were doxycycline, chlortetracycline,oxytetracycline, tetracycline, minocycline, amoxicillin and chloramphenicol used as primaryligands and cephalothin as secondary ligand. Kinetic parameters viz. transfer coefficient (a),degree of irreversibility (l), diffusion coefficient (D) and rate constant (k) were determined.The values of a and k varied from 0.41 to 0.59 and 2.60 X 10 -3 cm s -1 to 9.67 X 10 -3 cm s -1in case of [Co – antibiotics – cephalothin] system. In case of [Ni – antibiotics – cephalothin],a and k varied from 0.41 to 0.58 and 2.34 X 10 -3 cm s -1 to 9.19 X 10 -3 cm s -1 respectivelyconfirmed that transition state behaves between oxidant and reductant response to appliedpotential and it adjusts it self in such a way that the same is located midway between droppingmercury electrode and solution interface. The values of rate constant confirmed thequasireversible nature of electrode processes. The stability constants (logb) of complexeswere also determined.
Synthesis and characterization of activated carbon fibers from Kevlar
Authors: Giraldo Liliana , Ladino Yolanda , Moreno-Piraján Juan Carlos , Rodríguez Maria del Pilar
Published: July 2023

Kevlar [poly (p-phenilylene terephtalamide)], was used as a precursor in the preparation of acti-vated carbon fibers. For this intention, physical and chemical activations were carried out. Activated fiberswere physically prepared from the carbonization of the Kevlar and its later activation with CO 2 and steam ofwater, by the other hand; the chemically activated fibers were obtained by means of the impregnation of thematerial with phosphoric acid and their later carbonization. Different conditions were used and preliminaryanalyses of the precursor were taken into account (TGA-DTA / IR). The resulting fibers were characterizedby N 2 (77K) adsorption, infrared spectroscopy, SEM, and immersion calorimetry. Yields and Burn off werealso evaluated. The results shows that if you want to synthesize activated carbon fibers from Kevlar strongconditions respect to the commonly used such as water steam, high phosphoric acid concentrations and meth-ods of impregnation are the ones who allows the development of optimal surface areas and pore volumes.
Biheterocyclic ligands: synthesis, characterization and coordinating properties of bis(4-amino-5-mercapto-1,2,4-triazol-3-yl) alkanes with transition metal ions and their thermokinetic and biological studies
Authors: Al-Maydama Hussein , Al-Ansi Tajedin Yahya , Jamil Yasmin M. S. , Ali A. H.
Published: July 2023

The Co(II), Ni(II) and Cu(II) metal ions complexes of Bis(4-amino-5-mercapto-1,2,4-triazol-3-yl) alkanes (BATs) have been prepared and characterized by elemental analysis, conductivity measurements infrared, magnetic susceptibility, the electronic spectral data and thermal studies. Based on spectral and magnetic results, the ligands are tetradentate coordinating through the N and S-atoms of BATs; six-coordinated octahedral or distorted octahedral and some times four-coordinated square planar were proposed for these complexes. Activation energies computed for the thermal decomposition steps were compared. The ligands and their metal complexes were tested in vitro for their biological effects. Their activities against two gram-positive, two gram-negative bacteria and two fungal species were found to vary from moderate to very strong.
Electrochemical properties of Cu4[PhN3C6H4N3(H)Ph]4(μ-O)2, a tetranuclear Copper(II) complex with 1-phenyltriazenido-2-phenyltriazene-benzene as ligand
Authors: Hermann Alessandro , Da Silva Lucinei Stechmann , Peixoto Carlos Roberto de Menezes , De Oliveira Adriano Bof , Bordinhão Jairo , Hörner Manfredo
Published: July 2023

Bis-(μ2-oxo)-tetrakis{[1-feniltriazene-1,3-diil)-2-(phenyltriazenil)benzene copper(II) is a tetranuclear complex which shows four Cu(II) ions coordinated by four 1,2-bis(phenyltriazene)benzene bridged ligands, with one diazoaminic deprotonated chain, and two O2- ligands. The complex reduces at E1/2 = -0.95 V vs Fc+/Fc, a two electrons process. Cyclic voltammetric and spectroelectrochemical studies showed a reversible process. When immobilized on carbon paste electrode, the complex electrocatalyses the reduction of O2 dissolved on aqueous solution at –0.3 V vs SCE potential. The obtained current shows linearity with O2 concentration.
Polarographic study and electrode kinetics of [Zn(II) – antibiotics – cephaloglycin] system vis a vis kinetics of electrode reactions
Authors: Khan Farid
Published: July 2023

Electrode kinetics and complex formation of Zn(II) using doxycycline, chlortetracycline, oxytetracycline, tetracycline, minocycline, amoxicillin, chloramphenicol and cephaloglycin were reported at pH = 7.30 ± 0.01 in = 1.0 molL-1 NaClO4 used as supporting electrolyte at 25.0°C. Kinetic parameters viz. transfer coefficient (α), degree of irreversibility (λ) and rate constant (k) were determined. The study showed that ‘Transition state’ behaves between reactant (O) and product (R) response to applied potential. The stability constants varied from 2.14 to 10.31 showing that these drugs or their complexes could be used against Zn toxicity.
Otimização multivariada e aplicação do sorvente SiO2-Nb2O5 para determinação em linha de Ni(II) em matriz aquosa
Authors: Bianchin Joyce Nunes , Mior Renata , Martendal Edmar , Carletto Jeferson Schneider , Carasek Eduardo
Published: July 2023

Neste estudo foi desenvolvido uma metodologia para determinação de Ni(II) em amostras de água usando a extração em fase sólida (SPE) em um sistema por injeção em fluxo (FI) e detecção por espectrometria de absorção atômica em chama (F AAS). O adsorvente utilizado para a extração e pré-concentração do Ni(II) foi a sílica gel modificada com óxido de nióbio(V). Variáveis químicas e de fluxo do sistema em linha foram otimizadas usando planejamento fatorial completo (N = 2k + 3). As condições iniciais do sistema FI-F AAS foram volume de amostra de 10 mL e concentração de Ni(II) de 100 µg L-1. O tampão Sörensen foi selecionado neste estudo. A resposta analítica utilizada foi absorvância integrada. Após a otimização foram obtidos os parâmetros analíticos de mérito: faixa linear de trabalho estudada de 5-100 µg L-1; R = 0.9999; RSD = 1,5% (35 µg L-1, n = 7); limite de detecção de 0,8 µg L-1; limite de quantificação de 2,7 µg L-1 e fator de enriquecimento de 92,25. Foram analisadas amostras de água do rio Araranguá e a da rede de abastecimento da cidade de Florianópolis, ambas do estado de Santa Catarina.
Fungsi Musik pada Film Tenggelamnya Kapal Van Der Wijck (The Function of Music in the Sinking of the Van Der Wijck Ship)
Authors: Rozak Abdul , Pratama Haria Nanda
Published: July 2023

Suara atau musik merupakan salah satu untur sinematik pada film, musik menjadi hal terpenting dalam membangun efek dramatis pada setiap adegan pada film untuk mempengaruhi mood penonton. Artinya musik pada film merepresentasikan efek pendengaran terhadap pengalaman visual. Objek material pada penelitian ini yaitu Film Tenggelamnya Kapal Van Der Wijck, sedangkan objek formal yaitu fungsi musik yang menjadi pendukung dalam membangun suasana serta mempengaruhi mood penonton. Tujuan Penelitian ini adalh untuk mengetahui fungsi musik dalam film Tenggelamnya Kapal Van Der Wijck. Metode penelitian yang digunakan pada penelitian ini berupa metode kualitatif. Hasil dari penelitian ini antara lain menutup suara yang tak diinginkan (noise); menjaga kesinambungan antar shots; menuntun perhatian kepada hal-hal penting dalam film melalui struktur atau hal-hal yang kongruen; mempengaruhi perasaan meskipun digunakan untuk mengiringi hal yang tidak berhubungan (dengan emosi); menyampaikan maksud kelanjutan cerita, khususnya dalam situasi (adegan) yang membingungkan; berintegrasi dengan film dan memungkinkan simbolisasi terhadap masa lalu dan masa depan melalui teknik leitmotiv; meningkatkan rasa nyata dari sebuah film; dan menambah nilai seni dari sebuah film.Kata Kunci: Fungsi; Musik; Film Tenggelamnya Kapal Van Der WijckABSTRACTSound or music is one of the cinematic elements in the film, music is the most important thing in building a dramatic effect on every scene in the film to affect the mood of the audience. This means that the music in the film represents the auditory effect on the visual experience. The material object in this study is the film Tenggelamnya Kapal Van Der Wijck, while the formal object is the function of music which is a supporter in building the atmosphere and influencing the mood of the audience. The purpose of this study was to determine the function of music in the film Tenggelamnya Kapal Van Der Wijck. The research method used in this study is a qualitative method. The results of this study include closing unwanted sounds (noise); maintain continuity between shots; directing attention to important things in the film through congruent structures or things; affect feelings even if used to accompany things that are not related (with emotions); convey the meaning of the continuation of the story, especially in a confusing situation (scene); integrates with film and enables symbolization of the past and future through leitmotiv techniques; enhance the real feel of a film; and add to the artistic value of a film.Keywords: Function; Music; The Tenggelamnya Kapal Van Der Wijck Movie
Criminal for Prostitution Based on Regional Regulation of Surabaya City Viewed From the Perspective of the KUHP
Authors: Kartika Gusti Ayu Made Dwi
Published: July 2023

Crime cannot be separated between space and time, it can be committed by anyone and the victim can be anyone. Crime not only violates legal norms, but also violates social norms that apply in society and religious norms. Currently, if interpreted in reverse (a contrario) if there is an act (prostitution) which is of course an act that is condemned by society, but on the one hand it is not listed as an act or a criminal offense according to the Criminal Code (KUHP). how is the classification of this action and how is the law enforcement effort carried out. Being a commercial sex worker (PSK) and someone who uses the services of a commercial sex worker (PSK) are considered to have committed a crime and can be subject to criminal sanctions according to Surabaya City Regional Regulation Number 2 of 2020 concerning Amendments to Surabaya City Regional Regulation Number 2 of 2014 concerning the Implementation of Public Order and Public Peace, on the one hand the Criminal Code does not qualify these actions as criminal acts. The clash of norms occurred in the arrangement of the criminal law for prostitution in the city of Surabaya.
Juridical of Spatial Management in Bulukumba Regency
Authors: Syahird Ahmad Syahird , Herman Herman , Amir Sufriaman
Published: July 2023

Reform is a new milestone in the journey of Indonesian state administration starting from the beginning, the New Order was eroded by the currents of reform. This research was conducted with the aim of (1) the application of legal regulations in Bulukumba Regency. (2) the factors that influence the implementation of Regional Regulations. Empirical legal research methods. Qualitative research, source linked. primary data collection, interviews, documentation, results of the provision of green open spaces based on regional regulations (PERDA) No. 21 of 2012 concerning spatial planning for RT/RW areas. Bulukumba Regency, seriously and gradually. Conclusion Suggests that the Bulukumba Regency government should instill the values of green open spaces increasing public understanding of policies that apply evenly and are not covered.