bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimizing surgical outcomes for elderly gallstone patients with a high body mass index using enhanced recovery after surgery protocol
Authors: Gu Yue-Xia , Wang Xin-Yu , Chen Yang , Shao Jun-Xiu , Ni Shen-Xian , Zhang Xiu-Mei , Shao Si-Yu , Zhang Yu , Hu Wen-Jing , Ma Ying-Ying , Liu Meng-Yao , Yu Hua
Published: October 2023

Postcholecystectomy bile duct injury (BDI) remains a devastating iatrogenic complication that adversely impacts the quality of life with high healthcare costs. Despite a decrease in the incidence of laparoscopic cholecystectomy-related BDI, the absolute number remains high as cholecystectomy is a commonly performed surgical procedure. Open Roux-en-Y hepaticojejunostomy with meticulous surgical technique remains the gold standard surgical procedure with excellent long-term results in most patients. As with many hepatobiliary disorders, a minimally invasive approach has been recently explored to minimize access-related complications and improve postoperative recovery. Since patients with gallstone disease are often admitted for a minimally invasive cholecystectomy, laparoscopic and robotic approaches for repairing postcholecystectomy biliary stricture are attractive. While recent series have shown the feasibility and safety of minimally invasive post-cholecystectomy biliary stricture management, most are retrospective analyses with small sample sizes. Also, long-term follow-up is available only in a limited number of studies. The principles and technique of minimally invasive repair resemble open repair except for the extent of adhesiolysis and the suturing technique with continuous sutures commonly used in minimally invasive approaches. The robotic approach overcomes key limitations of laparoscopic surgery and has the potential to become the preferred minimally invasive approach for the repair of postcholecystectomy biliary stricture. Despite increasing use, lack of prospective studies and selection bias with available evidence precludes definitive conclusions regarding minimally invasive surgery for managing postcholecystectomy biliary stricture. High-volume prospective studies are required to confirm the initial promising outcomes with minimally invasive surgery.
Small-holder Farmers’ Perceptions of the Impacts of Climate Change on Maize Crop in Dodoma, Tanzania
Authors: Temba Augustino Nazar , Said Mohamed Khamis
Published: October 2023

Farmers have different perceptions of the impacts of climate change. This study examined smallholder farmers’ perceptions of the impacts of climate change on maize crops in Dodoma, Tanzania. A total of 216 household heads were involved in this study. The study used a cross-sectional design, where structured interview, Key Informant Interviews (KIIs) and Focus Group Discussions (FGDs) were used to collect both qualitative and quantitative data. Quantitative data were analysed using descriptive and inferential statistics, while qualitative data were analysed using content analysis. It was found that 69% of respondents perceived that climate change strongly has changed significantly over the last three decades. About 50.5% and 51.9% of the respondents highly agreed that climate change has contributed to the increase of weeds and pests or/and insects attack on the maize crops, respectively. The findings further revealed that age, farmland ownership, income, and education level of the small-holder farmers had a significant association with the perception of the impacts of climate change among smallholder farmers of maize at P<0.050. The study concludes that small-holder farmers’ perceptions of the impacts of climate change on maize crop are determined by their socio-economic and demographic factors. Thus, it is recommended that smallholder farmers should be provided with the sufficient knowledge of the impacts of climate change on maize crop so that they can have a proper understanding of the impacts of climate change and variability of maize crop. The farmers could use that knowledge to improve productivity.
Evaluation of radiation safety levels in the monitor rooms of selected diagnostic centres in Lagos State using thermoluminescent dosimeter
Authors: Ibitoye A. Z. , Onah E. M. , Adedokun M. B. , Ogungbemi I. K.
Published: October 2023

The hazard of exposure to ionizing radiation at low doses has been scientifically proven to be possible for cancer and non-cancer diseases. International and national regulatory bodies have recommended dose limits for occupationally exposed workers to ionizing radiation and the general public. The objective of this study was to assess the radiation safety levels in monitor rooms of x-ray diagnostic radiology facilities. Sixty monitored rooms in twenty radio diagnostic centers were visited. Three tissue-equivalent thermoluminescent dosemeters (TLD-100 (LiF: Mg. Ti)) chips were placed in strategic places a few centimeters from the viewing glass in the monitored rooms for two weeks. The TLDs were analyzed using the RADOS RE 2000 TLD reader. Questionnaires were also distributed to ascertain compliance with the basic principles of radiation protection. The average personnel dose equivalents in the monitored rooms of conventional x-rays, mammography, computed tomography, and fluoroscopy were 0.33, 0.32, 0.28, and 0.34 mSv/year, respectively. The status of the radiation safety levels in the selected monitored rooms is satisfactory because the values obtained were below the international recommended dose limit of 50 mSv in a single year for occupationally exposed radiation workers.
Screening for antibacterial properties of some traditional medicinal plants in Kebbi State, Nigeria
Authors: Abdulhamid A. , Fakai I.M. , Sani I. , Bagudo A.I. , Hamisu A.
Published: October 2023

Infections caused by bacteria continue to be a major threat to public health. The impact of this is especially alarming in developing countries due to the relative shortages of medicines and the emergence of widespread drug resistance. This has led to the search for new antimicrobial agents mainly among plant extracts. As part of an ongoing research to isolate and purify antibacterial compounds from the extract of traditionally used medicinal plants from Kebbi State, Nigeria, some selected plants were screened for their antibacterial potentials. The preliminary phytochemical screening of the extracts was carried out using standard methods. The bioactivity (antibacterial) test was done using agar well diffusion method, while MIC and MBC were tested using broth dilution method. The results for the phytochemical screening showed the presence of flavonoids, tannins, saponins, glycosides, alkaloids and terpenoids in the selected plants extracts. The results for the antibacterial activity of the crude methanolic extracts of the selected plants showed varying degree of antibacterial activities against selected bacterial isolates. However, the stem bark extract of Acacia nilotica showed relatively high zone of inhibition (mm), minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). The extract was found to inhibit the growth of most of the tested bacterial isolates comprising of both Gram-positive and Gram-negative organisms. These findings support previous reports on the antimicrobial activity of this plant. The result of the present study signifies the potential of Acacia nilotica stem bark as a source of therapeutic agents, which may provide leads in the ongoing search for antibacterial agents from plants.
Cooperation and co-creation in the scientific activity of museums
Authors: Sawczuk Magdalena
Published: October 2023

Museums are more often analyzed from diverse perspectives, which include the multiplicity of their functions performed. The biggest interest regards cultural, social, or tourism activities. Nevertheless, educational activities, addressing especially the school youngsters, are of importance as well. Among the multifunctionality and diversity of functions performed, less is explored about the cooperation within the framework of scientific projects, which is closely connected to the basic museum duties: collecting and researching. The main aim of the article is to recognize the importance of cooperation initiated by museums within the area of scientific activity. It was specified by two research questions: 1. What entities are engaged in scientific-based cooperation? 2. In which ways effects of such activity are co-created? Within the qualitative research approach applied, the multiple case study method was selected. During the research, the semi-structured interviews were applied, as also observations and content analysis from social media sites. Although the focus on the scientific activities depends on the specific institution, yet is important while looking at the basic activities performed by museums. Scientific cooperation very often connects similar organizations, but also opens for new relations. Despite strict scientific dimensions, the benefits may also affect less involved entities. Field research and conferences, especially visible parts of scientific activities, have an aspect of co-creation as well.
Bureaucratic Reform and Clean Governance: Efforts Towards Social Justice and Sustainable Economic Growth in Indonesia
Authors: Ibrahim Riza Andrian , Sidiq Fahmi , Azahra Astrid Sulistya
Published: October 2023

The implementation of a clean government free from corrupt behavior is a crucial aspect in ensuring sustainable economic growth and development in Indonesia. This article discusses the urgency of bureaucratic reform as a first step in overcoming various obstacles affecting the effectiveness of government. Institutional structuring, management, and human resources, as well as strengthening accountability are the main focuses of reform efforts. In addition, active community participation, firm law enforcement, transparency, and responsiveness to public needs are also important elements in good governance. Through the implementation of these principles, it is hoped that Indonesia can build a government system that is transparent, accountable, and able to provide quality services to all people.
SISTEMAS DE INFORMAÇÃO E A GESTÃO DA INOVAÇÃO E DO CONHECIMENTO EM AMBIENTES CORPORATIVOS
Authors: Rodrigues Katia Silene Macedo de Medeiros , Sousa Carlos André Monteiro de , Sotero Isabel da Silva , Leite Jaqueline Conceição , Júnior Tácito Augusto Farias
Published: October 2023

Este trabalho foi desenvolvido a partir da pesquisa de publicações disponíveis em ambiente virtual, bem como o uso de livros de composição do acervo de bibliotecas. O presente trabalho foi desenvolvido tendo como base o referencial teórico abordado na disciplina, publicações disponíveis no ambiente virtual, e outros livros que pautam sobre as temáticas aqui abordadas, sendo possível a partir da pesquisa o levantamento de questionamentos sobre como as empresas têm lidado com os processos diante da adversidade e dos múltiplos desafios que envolvem a introdução de novas tecnologias, bem como a reconstrução de cultura dentro das organizações, considerando a perspectiva não só da inovação, mas também a gestão do conhecimento que já existe nas empresas, objetivando assim alavancar melhores resultados. Com este artigo pretende-se abordar o conceito de sistemas de informações, seu papel e objetivos na sua utilização dentro das empresas. Com esta pesquisa espera-se alcançar evidências quanto a sua relevância nas organizações, preservando o elemento humano com suas contribuições, juntamente com as inciativas tecnológicas e inovadoras, propostas nos ambientes de trabalho. Desta forma observar a utilização dos sistemas de informação na gestão da inovação e do conhecimento em ambientes corporativos, utilizando os recursos que as novas tecnologias oferecem, avaliando como as organizações podem evoluir e sobrevierem de forma sustentável em um mundo globalizado e em constante evolução.
Factores de incidencia del síndrome de Burnout en trabajadores mineros de Bella Rica, Ponce Enríquez- Ecuador
Authors: Vivanco Espinoza Alexander Efrén , Solano Peláez José Luis
Published: October 2023

El burnout es un problema de salud de repercusiones mundiales, es también, un factor de riesgo laboral de acuerdo con la Organización Mundial de la Salud, que afecta la calidad de vida, salud mental y puede poner en riesgo la integridad personal. Las personas que lo padecen tienen pocas habilidades para afrontar el estrés, provocando agotamiento emocional, despersonalización y disminución del desempeño personal. La metodología utilizada en este estudio es de tipo descriptivo y explicativo, se aborda la problemática del burnout en trabajadores de la mina Bella Rica del cantón Ponce Enríquez-Azuay, a partir de la aplicación del Inventario de burnout de Maslach (MBI) y de una ficha socioeconómica en una muestra por conveniencia en 30 trabajadores mineros, los datos obtenidos nos permiten señalar que el 100% de los participantes no han alcanzado la realización personal, y 83% presenta agotamiento emocional y despersonalización, entre los factores psicosociales identificados se encontró el rango de edad promedio 25-30 años que representó el 36.67%, los participantes masculinos 83.33% y los femeninos 16.67%, educación mayoritariamente secundaria (46.7%), el estado civil unión libre 43.3% y el tipo de empleo contrato indefinido en el 60% de la muestra, en términos generales se concluyó que existen factores de riesgo en los trabajadores mineros y el nivel de afectación medio repercute en su salud mental y desempeño laboral.
Ecological applications based on bacterial community abundance in reservoirs using an artificial neural network approach
Authors:   University of Kragujevac, Faculty of Science, Serbia, Radojević Ivana , Ostojić Aleksandar ,   University of Kragujevac, Faculty of Science, Serbia, Ranković Vesna ,   University of Kragujevac, Faculty of Engineering, Kragujevac, Serbia
Published: October 2023

The objective of this study is to analyze the influence and predict abundance the heterotrophic bacteria (psychrophile; mesophile) and facultative oligotrophic bacteria as a reflection of ecological relationships in reservoirs and water quality. We used artificial neural networks (ANNs) to develop models based on input variables derived from two different reservoirs. The neural network models were developed using experimental data which is collected for ten years. Although reservoirs have a different position, different morphometric qualities, trophic state and dominant bacterial community there is a possibility of predicting these bacterial communities with the same input parameters. Comparing the modeled values by ANN with the experimental data indicates that neural network models provide accurate results. The important conclusion of this work is that ANNs can provide a flexible and applicable tool in monitoring water quality across bacterial communities in reservoirs.
Oxidative DNA damage preventive activity of essential oils of three Pinus species: P. mugo, P. sibirica, and P. silvestre
Authors:   University of Kragujevac, Institute for Information Technologies, Serbia, Matić Sanja Lj. , Mladenović Tamara M. ,   University of Kragujevac, Institute for Information Technologies, Serbia, Mladenović Milan P. ,   University of Kragujevac, Faculty of Science, Serbia, Tomašević Nevena M. ,   University of Kragujevac, Faculty of Science, Serbia, Capobianco Roberto ,   Sapienza University of Rome, Department of Computer, Control and Management Engineering "Antonio Ruberti", Italy, Ragno Alessio ,   Sapienza University of Rome, Department of Computer, Control and Management Engineering "Antonio Ruberti", Italy, Sapienza Filippo U. ,   Sapienza University of Rome, Rome Center for Molecular Design, Department of Drug Chemistry and Technology, Italy, Astolfi Roberta ,   Sapienza University of Rome, Rome Center for Molecular Design, Department of Drug Chemistry and Technology, Italy, Ragno Rino ,   Sapienza University of Rome, Rome Center for Molecular Design, Department of Drug Chemistry and Technology, Italy
Published: October 2023

Pharmacological properties of essential oils of Pinus species are mainly associated with antimicrobial, antioxidant, anticancer, anti-aging, and anti-inflammatory potencies. However, only limited scientific information has been gathered regarding the genotoxic and antigenotoxic activities of Pinus essential oils. Therefore, the aim of the present study was to investigate the in vitro DNA protective activities of three commercial essential oils of Pinus species: P. mugo, P. sibirica, and P. silvestre, against the oxidative damage induced by hydroxyl and peroxyl radicals. The tested essential oils significantly reduced the DNA damage caused by the free radicals. Due to its capacity to decrease DNA damage, essential oils of Pinus species can be of great importance in clinical applications.
Assessment of different machine learning tools employed in lipidomics
Authors:   University of Belgrade, Vinča Institute of Nuclear Sciences - National Institute of the Republic of  Serbia, Department of Physical Chemistry, Serbia, Pirić David , Masnikosa Romana ,   University of Belgrade, Vinča Institute of Nuclear Sciences - National Institute of the Republic of  Serbia, Department of Physical Chemistry, Serbia
Published: October 2023

Herein we present the potential of four machine learning (ML) algorithms: Partial Least Squares – Discriminant Analysis (PLS-DA), Random Forests (RF), Support Vector Machines (SVM) and Decision Trees (DT) to classify human plasma samples into cancer or control group, using a lipidomic dataset retrieved from the research article „Lipidomic profiling of human serum enables detection of pancreatic cancer“ by Wolrab et al. [1]. Our main objective was to assess and compare, for the four ML techniques, the performance metrics, that is accuracy, precision, sensitivity, F1 score and ROC-AUC, with those computed by Orthogonal Projections to Latent Structures (OPLS)-DA in [1]. Our findings suggest that SVM and RF offer a superior performance as binary classifiers, making these two promising candidates for future use in the discovery of potential lipidomic biomarkers.
Unveiling The Power of Brand Experience: Exploring The Mediating Role of Value Co-Creation In Driving Word of Mouth
Authors: Aditya Dana , Suhariadi Fendy , Hartini Sri
Published: October 2023

Generation Y consumers make purchasing decisions based on brands that can stimulate unforgettable experiences to be shared with others. Postmodern life has changed the habits and patterns of wedding events, where ideas and bridal concepts play a significant role. This study aims to examine the mediating role of brand experience variables in the influence of value co-creation on word of mouth. The study found that value co-creation does not have a direct impact on word of mouth. This is due to the bridal couple's need for wedding organizer services to ensure convenience and smooth execution of the wedding event without directly being involved in the preparation process and equipment. The study concludes that in wedding events, the exchange value still relies on the use of oper and resources, and the bridal couple still lacks the ability to directly appreciate their wedding concepts and ideas.
The Influence of Job Satisfaction and Employee Retention on Employee Performance Mediated by Perceptions of Leadership Style
Authors: Sinurat Veraningsih , Widhianto Chandra Wibowo
Published: October 2023

The discussion concerning the role of human resources in company management is closely linked to the effective management of the existing human resources, enabling them to play a significant role in achieving the company's goals. To ensure the company's stability, it is essential for human resource management to make efforts in maintaining employee performance. Furthermore, companies must work diligently to develop strategies for retaining employees with high potential and the ability to positively contribute to the overall performance of the company. The objective of this study is to analyze the impact of job satisfaction and employee retention on employee performance, with the mediation of leadership style perception among employees at PT XYZ. The sample for this research comprises the entire population of employees at PT XYZ who have been with the company for a minimum of six months, totaling 150 individuals. This study employs a quantitative correlational method using Structural Equation Models (SEM). Data collection was conducted through a questionnaire distributed via Google Forms among PT XYZ employees. Data analysis for this study was performed using the SmartPLS version 4.0 software. The findings of this study reveal that, at PT XYZ, job satisfaction and employee retention do not directly impact employee performance. However, they do significantly influence employees' perceptions of leadership style, with leadership style perception being identified as the key factor influencing employee performance.
Menjaga Berat Badan Atlet Pencak Silat Jawa Tengah Menuju PRA PON 2023
Authors: Rony Syaifullah  , Baskoro Nugroho Putro  , Hanik Liskustyawati  , Sri Santoso Sabarini  , Slamet Riyadi  , Agus Mukholid  , Djoko Nugroho  , Waluyo  , Tri Aprilijanto Utomo
Published: October 2023

Pengabdian ini bertujuan menjaga berat badan dan pola makan pada 22 atlet pencak silat yang mengikuti pemusatan latihan. Metode yang digunakan adalah pendampingan, di mana tim menyediakan bimbingan dan dukungan kepada atlet dalam menjaga pola makan sehat. Hasil pengukuran menunjukkan bahwa 68% atlet memiliki Indeks Massa Tubuh (IMT) yang normal, sedangkan 32% atlet masuk dalam kategori obesitas atau berat badan berlebih. Pola makan yang seimbang menjadi faktor penting dalam menjaga berat badan atlet. Pentingnya menjaga pola makan ditanamkan pada atlet selama pemusatan latihan, dengan integrasi metode self-help agar atlet dapat menjaga pola makan secara mandiri ketika tim tidak hadir. Dalam keseluruhan, pendampingan yang dilakukan tim berhasil membantu sebagian besar atlet untuk mencapai berat badan yang sesuai dan siap mengikuti kompetisi. Penting untuk memprioritaskan gaya hidup sehat dan keseimbangan antara latihan, istirahat, dan pola makan untuk mendukung kesehatan dan performa olahraga yang optimal.
Penguatan Gerakan Literasi Sekolah Melalui Literasi Digital
Authors: Rini Lindawati  , Nurhayati Ganinda
Published: October 2023

Artikel ini membahas tentang program pengabdian kepada masyarakat di SMPN 2 Puri Kabupaten Mojokerto yang bertujuan untuk menguatkan gerakan literasi sekolah dengan menggunakan literasi digital. Kegiatan pada program ini berupa pelatihan yang untuk bapak dan ibu guru pada SMPN 2 Puri untuk memanfaatkan sebuah website yang menyediakan ribuan bahan bacaan berjenjang yang cocok bagi pembaca pemula hingga pembaca dewasa. Kegiatan diadakan karena dilatarbelakangi oleh meningkatnya antusiame membaca siswa pada saat kegiatan membaca di sekolah, namun sumber baca yang tersedia belum terdapat penambahan. Untuk menyeimbangkan tingginya minat baca siswa dengan jumlah sumber bacaan yang tersedia, maka tim berinisiatif untuk menambahkan sumber bacaan siswa dengan melalui sebuah website penyedia bahan baacaan bernama er-central. Pelatihan ini menggunakan tiga metode pendekatan, yakni brainstorming, metode ceramah, dan diskusi. Hasil workshop ini menunjukkan hasil yang baik dimana bapak dan ibu guru dapat menguasai penggunaan website er-central dimulai dari cara pendaftaran baik sebagai manager dan sebagai siswa hingga membaca riwayat membaca siswa, sehingga bapak dan ibu guru siap untuk mengimplementasikan penggunaan er-central baik dalam kegiatan mengajar di kelas maupun kegiatan literasi di sekolah.
ASSESSMENT OF THE GENETIC DIVERSITY OF NEW SUGARCANE HYBRIDS USING PRINCIPAL COMPONENT AND CLUSTER ANALYSES
Authors: Ramírez-Madero Gustavo , Gómez-Merino Fernando Carlos , Bello-Bello Jericó Jabín , Trejo-Téllez Libia Iris , Hidalgo Contreras Juan Valente
Published: October 2023

With a cultivated area of approximately 800 thousand hectares distributed in 15 states, sugarcane (Saccharum spp.) is one of the main crops in Mexico. Despite its socioeconomic importance, the genetic base of this crop has been reduced in recent decades, making the production system vulnerable to both biotic and abiotic stresses. For this reason, the Colegio de Postgraduados Campus Córdoba initiated a varietal selection program in 2009. In this study, morphological and agronomic attributes of 20 advanced hybrids were analyzed during the 2020-2021 and 2021-2022 growing seasons to determine genetic variability based on principal component analysis (PCA) and cluster analysis. Commercial cultivars widely planted in the area of influence of the Córdoba Campus (CP 72-2086, Mex 79-431, Mex 69-290 and Mex 05-204) were used as reference samples. In terms of agronomic indicators, most of the new hybrids showed higher averages than the commercial control cultivars. The hybrids COLPOSCCMex 09-50 and COLPOSCCMex 09-66 showed better germination capacity. The average height of the tallest milling stems was presented by the hybrids COLPOSCCMex 09-341 (318.1 cm) and COLPOSCCMex 09-93 (311.85 cm). The hybrid COLPOSCCMex 09-289 showed outstanding values for five variables: diameter (36.43 mm), °Brix (21.89 %), stem height (149.33 cm), leaf width (5.36 cm) and number of leaves (11.15). Morphological characterization was carried out according to 54 descriptors, combining categorical and continuous traits that were easy to observe, with a high degree of differentiation and low environmental influence. Principal component and cluster analyses showed the distribution of hybrids into five groups. These results show promising sugarcane lines with high yields, which can contribute to genetic diversity in agroecological zones where they can be adapted.
The Significance of Al-Jazari's Four-Bucket Water Lifting Machine in the History of Engineering and Science
Authors:   Isparta University of Applied Sciences, Faculty of Agriculture, Department of Agricultural Machinery and Technologies Engineering, ORCID: 0000-0002-7185-6514, Isparta, Turkey, KÜLCÜ Recep
Published: October 2023

The developments in the field of engineering have an eclectic structure. During ancient times, the works carried out at the School of Mechanical Engineering in Alexandria were transmitted to the Islamic world through translations at the House of Wisdom (Bayt al-Hikmah). Following this process, engineering studies became the focus of research in the Islamic world, both from theoretical and practical perspectives. Prominent researchers in this context include the Banu Musa brothers (9th century), Al-Farabi (875-950), Al-Hazini (1100s), and Al-Jazari (13th century). The renowned Turkish philosopher Al-Farabi conducted research on air and vacuum, expressing his views in the treatise "Risale li-Ebi Nasr al-Farabi fi’l-Hala" (On Vacuum). Al-Hazini's book "Mizanu’l Hikme" (The Balance of Wisdom) sheds light on the concept of balance, with Hazini turning the water balance into an extraordinary equilibrium device and creating a balance called "Mizânü'l-Câmî" (The Collector).The Banu Musa brothers presented valuable machine and mechanical system designs in their work "Kitab al-Hiyal" (The Book of Ingenious Devices). Al-Jazari, born in 1153 in Cizre, served as the chief engineer of the Artuklu palace for 32 years. During this time, he designed many mechanical and automation-based systems. Upon examining the designs in Al-Jazari's book "Kitab-ül Cami Beyn-el-İl ve'l-Amel el-Nâfi fi Sınaât el Hiyel," it becomes apparent that he elevated the designs made before him to a completely different level. Some of today's engineering designs can trace their origins to the drawings found in this book. In this study, the design features of Al-Jazari's 4-bucket water-lifting machine are examined, and its value in contemporary engineering is explored. Al-Jazari designed a mechanical timer to ensure the continuity of water flow in his design. This timer allowed each bucket to discharge water one after the other, maintaining a continuous flow of water. He achieved this through a shaft with quarter-toothed gears. This design can be considered the precursor to the eccentric and crankshafts found in modern internal combustion engines. The eccentric shaft controls the mechanical timing of valves in engines, while crankshafts ensure the continuous transmission of the force generated by four pistons in a four-stroke engine over a quarter of the cycle to the flywheel gear.
Employee Performance in a Logistics Service Company is Determined by the Work Environment and Organizational Commitments
Authors:   Universitas Krisnadwipayana, Jakarta, Indonesia, Indriyanto Irwan
Published: October 2023

The purpose of this study is to investigate the impact of organizational commitment and the work environment on employee performance. This study employs an associative research design and a quantitative approach. The population consists of 150 employees who work in the East Jakarta Shopee Express region. The sampling approach utilized was incidental sampling, and the sample size was calculated using the Slovin formula to be 60 respondents. This study's data gathering method is a questionnaire whose validity and reliability have been evaluated. This study suggests that logistics employee performance can be influenced by the workplace environment and that the business is committed to attaining company goals.
Die PAL-SECAM-Kontroverse in der DDR. Die politisch-ideologische Instrumentalisierung der Farbfernsehfrage durch den ostdeutschen Staat zwischen 1965 und 1969.
Authors: Glaubitz Gerald
Published: October 2023

Das Buch beschäftigt sich mit der sogenannten »PAL-SECAM-Farbfernsehkontroverse?« deren Politisierung mit der Unterzeichnung des französisch-sowjetischen staatlichen Rahmenabkommens vom März 1965 ihren Höhepunkt erreichte. Die damals spannende Frage war, für welches Farbfernsehsystem sich die DDR entscheiden würde, für das westdeutsche PAL-System oder das des »großen Bruders« (SECAM). Im letzteren Fall befürchteten nicht wenige Beobachter in der Bundesrepublik eine Vertiefung der deutschen Teilung durch farbfernsehtechnisch-kulturelle Separatentwicklung. Der Autor stellt den langen Prozeß der »Entscheidungsfindung« in der DDR dar, der von der sowjetischen Übernahme SECAMs 1965 bis zur offiziellen Einführung des SECAM-Systems im Rahmen der Eröffnung des 2. Fernsehprogrammes des DFF 1969 immerhin 4 Jahre dauerte. Die Untersuchung beginnt mit einem technisch-geschichtlichen Abriß der PAL-SECAM-Kontroverse im globalpolitischen Zusammenhang, wobei der Autor die farbfernsehtechnische Entwicklung der DDR in den allgemeinen innenpolitischen und außenpolitischen sowie technikgeschichtlichen Kontext der Geschichte des ostdeutschen Staates, insbesondere der zeitweilig von ökonomischen Reformen geprägten 60er Jahre, stellt. Die sich daran anschließende Betrachtung der Kontroverse im Hauptteil beleuchtet die politische, die ideologische und die technisch-ökonomische Dimension der farbfernsehtechnischen Systemfrage, wobei wesentliche personale Entscheidungsträger (Alexander Abusch, Heinz Adameck) und Institutionen (Rundfunk- und Fernsehtechnisches Zentralamt der Deutschen Post in Adlershof) sowie der Produktionsstandort des ersten DDR-Farbfernsehempfängers in Staßfurt vorgestellt werden.
Uso de hCG em cabras Saanen fotoestimuladas sincronizadas com duas doses de cloprostenol
Authors:   , Rangel Paulo Sergio Cerqueira
Published: October 2023

Este estudo teve como objetivo avaliar os efeitos da adição de uma dose de hCG no momento da segunda administração de cloprostenol em protocolo de estro sincronizado em cabras Saanen acíclicas submetidas a fotoperíodo artificial [16 h de luz e 8 h de escuridão diariamente por 60 dias (D0 = 30 de junho e D60 = 29 de agosto)]. Setenta e duas cabras foram sincronizadas com duas doses de 125 μg de cloprostenol i.m. com intervalo de 11,5 dias (D130 e D141,5). Na segunda dose, as cabras foram alocadas para receber solução salina (G-Controle; n=36) ou 300 UI de G-hCG (n=36) i.m. Dois machos férteis foram utilizados para detecção de estro de D120 a D152, e, após a segunda dose de cloprostenol foram acasalados naturalmente e a prenhez verificada após 30 dias. Parte das cabras foi monitorada por ultrassonografia (US) transretal a cada 12 h de D141.5 a D145, e uma vez ao dia em intervalos específicos após D145 (d3, d5, d7, d10, d13, d17 e d21) definido como marcador de ovulação esperada. A concentração sérica de progesterona (P4) foi obtida por meio de sangue coletado no momento das administrações de cloprostenol e também nos respectivos dias após o D145. Com relação à taxa de animais em estro, foi observada diferença (P<0,05) entre antes da primeira dose (devido à fotoestimulação) e após a segunda (efeito adicional do tratamento com cloprostenol), sendo 39% e 71% (78% controle vs 64% hCG; P>0,05). Considerando o período total, 94,4% (68/72) das cabras manifestaram estro. Após a segunda administração (24 a 96 h), o intervalo para o estro e a taxa de concepção foram semelhantes (P>0,05), enquanto o intervalo para a ovulação foi superior (P<0,05; 72,9 ± 4,8 vs. 45,0 ± 5,9 h) nos animais G-Controle que no G-hCG, respectivamente. O G-hCG apresentou menor taxa de regressão prematura do corpo lúteo (RPCL) [30,6% (11/36) e 11,1% (4/36)] e de prenhez [47,2% (17/36) e 25,0% (9/36)]. A distribuição dos diâmetros foliculares < 5 mm e ≥ 5 mm foi semelhante (P>0,05) no momento da ovulação e na primeira US antes e depois entre tratamentos. A concentração sérica de P4 (ng/mL) foi maior (P<0,05) para o G-hCG em d13 (2,3 ± 0,4 e 3,9 ± 0,8) e d17 (2,8 ± 0,4 vs. 5,2 ± 0,7). Diferenças também puderam ser verificadas para a média de corpos lúteos (CL) por cabra em cada mensuração de d7 a d21 a favor do G-hCG, refletindo na maior área luteal por cabra (mm2) em d10 (197,1 ± 28,0 e 288,4 ± 24,7), d13 (202,7 ± 35,7 e 345,3 ± 27,4) e d17 (250,8 ± 41,8 e 422,0 ± 33,8). Conclui-se que, nas condições do presente estudo, a gonadotrofina afetou adversamente a taxa de prenhez, apesar da eficácia sincrônica do estro e do aumento da concentração sérica de P4, resultado de suporte significativo na criação e manutenção de estruturas lúteas. Palavras-chave: Gonadotrofina. Coriônica humana. Sincronização de estro. Tratamento por luz.
Variasi dan Analisis Fenetik Aksesi Kembang Sungsang (Gloriosa superba L.) di Daerah Istimewa Yogyakarta Berdasarkan Karakter Morfologi dan Anatomi
Authors: Hastami Eria Rosanti Nugrahening , Purnomo Purnomo
Published: October 2023

Kembang sungsang (Gloriosa superba L.) is a member of Colchicaceae family and distributed in tropical areas such as India, Malaysia, and Indonesia. G. superba has a high colchicine content, so it is widely used as a traditional medicine and biomutagen. The diverse habitats of G. superba have potential to create variations. The aims of this study were to determine the morphological, anatomical variations, and phenetic relationship of G. superba in Yogyakarta. A sample of 12 accessions was taken from 4 regencies in Yogyakarta: Bantul, Sleman, Kulon Progo, and Gunungkidul. Morphological characterization are tubers, stems, leaves, flowers, and fruit. Transversal section of leaves were prepared using paraffin embedding method to observe leaf structure and paradermal preparations to observe the leaf epidermis. The similarity index between OTUs is calculated using the Gower General Similarity Coefficient, clustering using UPGMA (Unweighted Pair Group Method with Arithmetic Averages) algorithm to form a dendrogram with MVSP (Multivariate Statistical Package) software. The results showed that the morphological variations of G. superba in Yogyakarta were large in terms of stem height, branching, number of leaves, leaf arrangement, leaf size, tuber shape, and tuber diameter. Leaf arrangement of G. superba population have 3 types: opposite, alternate, and mixed. Anatomical variations were large in terms of adaxial epidermal thickness, lamina thickness, midrib thickness, transport bundle size, stomatal size, and stomatal density. Based on the phenetic analysis, morphological characters are grouped into two clusters, while anatomical character into four clusters without pattern.
Análise crítica do discurso do documento Diretrizes de Aprendizagem dos Objetivos de Desenvolvimento Sustentável (ODS) no Currículo da Cidade de São Paulo
Authors: Tapajós Santos Moreira Luna , Bernardo Loureiro Carlos Frederico
Published: October 2023

O trabalho referencia-se na Análise Crítica do Discurso, considerando de modo complementar, o conceito de Estado em Gramsci para analisar o documento Diretrizes de Aprendizagem dos Objetivos de Desenvolvimento Sustentável (ODS) no Currículo da Cidade de São Paulo publicado pela Secretaria Municipal de São Paulo no ano de 2020. Observa-se que tal documento aproxima-se de uma concepção hegemônica de desenvolvimento sustentável na medida em que privilegia uma dimensão instrumental de educação pautada na criação de habilidades e competências voltadas para a promoção de um padrão de comportamento dito sustentável. Ademais, o documento introduz um discurso pautado por soluções individuais no que diz respeito à crise ambiental, dissociando as relações sociais de produção da esfera individual, para onde são transferidas as responsabilidades pelas mudanças apontadas como necessárias.  Apesar de apresentar questões relevantes a serem debatidas pelas redes de ensino, argumentamos no presente artigo sobre as contradições que permeiam a abordagem da educação para o desenvolvimento sustentável em relação a tais temáticas.
Escritas e traçados de experiências na Amazônia
Authors: Andrade Carolina , Figueroa Figueiredo Tainá , Araujo Figueiredo de Sousa Rhuan Paulo , Bozelli Reinaldo Luiz , Freire Laísa
Published: October 2023

As trilhas interpretativas podem fazer parte de processos formativos. O objetivo deste trabalho foi caracterizar os significados atribuídos às experiências de educadores ambientais em uma trilha sinalizada na Amazônia. Para isso, realizamos uma atividade em uma trilha com cinco educadores ambientais na Floresta Nacional de Carajás (Pará). Após o percurso da trilha os participantes produziram textos e desenhos sobre suas vivências. Os textos foram analisados a partir da análise do discurso e os desenhos através de uma adaptação da análise de redes sistêmicas. Como resultados, identificamos diferentes relações dos sujeitos com o território: (i) posicionamentos de integração e afastamento com a natureza; (ii) relação significativa das experiências dos sujeitos com a trilha e com uma placa de sinalização; (iii) sensopercepção como caminho de afetividade e; (iv) presença de discursos na relação indivíduo-coletivo. As relações de pertencimento e de valorização coletiva identificadas contribuem para participação social e outras relações ser humano~natureza.
Plantas, artes e afetos
Authors: Velloso Correa Mayra , Vicentini de Sampaio Shaula Maíra
Published: October 2023

Esta pesquisa teve como objetivo explorar conexões entre plantas, arte e educação através de oficinas de experimentação na escola, procurando investigar de que forma as narrativas que emergem desses encontros ajudam a semear outros mundos para coexistir e potencializar nossos modos de existência para enfrentar os tempos difíceis que emergem. Através das oficinas elaboradas nesta pesquisa, foi possível ativar um olhar atento à vida que pulsa na cidade e, por meio da arte, criar e pensar em desvios que nos levem a atravessar o tempo presente de maneira mais atenta e inventiva. Que narrativas germinam a partir de encontros entre  sujeitos e  plantas através da experimentação? Aqui, procuramos abrir caminhos a novos deslocamentos para se pensar a educação ambiental na escola, no sentido de fazer brotar narrativas outras que contem novas histórias sobre as relações que cultivamos com outros seres e com o ambiente.
Educação ambiental em escolas municipais em Duque de Caxias
Authors: Floriano Marcio Douglas
Published: October 2023

O presente trabalho teve como objetivo investigar as ações de educação ambiental praticadas em escolas da Rede Municipal de Duque de Caxias, RJ, situadas no entorno de um polo petroquímico. Teoricamente a investigação ancorou-se nos preceitos do materialismo histórico, bem como nas formulações da Educação Ambiental Crítica (EAC) e da ecologia política. Utilizou-se uma metodologia qualitativa composta por: a) análise documental abrangendo  os projetos das empresas Reduc, Braskem e Arlanxeo; b) observação das atividades de educação ambiental desenvolvidas no interior de cinco unidades escolares municipais por empresas ou por docentes e c) entrevistas semiestruturadas com 18  docentes das unidades escolares. Concluiu-se que a educação ambiental praticada majoritariamente nas escolas municipais de Campos Elíseos atende aos interesses das empresas do polo petroquímico e negligencia as questões socioambientais existentes no entorno das escolas.
Assessment of the influence of the elements of cultivation technology and other factors on the growing of poplar seedlings
Authors: Bordus O. O.
Published: October 2023

Purpose. To study the peculiarities of growing one-year seedlings obtained from cuttings of four black poplar cultivars in the Central Forest Steppe and the influence of agrotechnical measures and other factors on this process.
Methods. For three years, the morphometric characteristics of the seedlings of poplar varieties 'Dorskamp', 'I‑45/51', 'Robusta', and Toropohrytskyi poplar, grown on chernozems of the Central Forest Steppe of Ukraine, were studied. One-year lignified 20, 25 and 30-cm long cuttings were used to obtain seedlings that were planted in two periods: autumn (late November) and spring (beginning of April) in the years 2019–2021.
Results. For autumn planting, cuttings of Toropohrytskyi poplar had the highest height. It was, on average, over three years, 178.4 cm when using cuttings with a length of 20 cm, 188.7 cm with cuttings of 25 cm, and 197.0 cm with cuttings of 30 cm. The average height of seedlings of 'Dorskamp' variety ranged from 158.2 up to 170.3 cm, in 'Robusta' from 148.1 to 161.8 cm and in 'I–45/51' from 145.2 to 153.8 cm. Plants of 'Dorskamp' variety had the largest dimensions during spring planting, which ranged from 193.8 to 197.9 cm. The average height of Toropohrytskyi poplar plants was from 151.2 to 173.5 cm, of 'Robusta' variety from 131.9 to 149.1 cm, and of 'I–45/51' from 122.4 to 128.3 cm. At the same time, the plants from the shortest cuttings had the highest height in varieties 'Robusta' and 'I–45/51'.
Conclusions. Of the studied cultivars cultivated on leached chernozems, it is primarily advisable to use Toropohrytsky poplar and 'Dorskamp' variety. The first one should be planted in autumn using 30-cm cuttings, and the second one should be planted in spring using 20-cm cuttings. Cuttings of the 'I-45/51' and 'Robusta' varieties should be planted in autumn. Their optimal length is 20 cm. The weight of one-year-old poplar cuttings and the proportion of their root system are most influenced by the time of planting, varietal characteristics and weather conditions of the growing season.
Case Study of Biomass Stove: Effects of Product Quality and Service Quality on Customer Satisfaction
Authors: Gunawan Alvin , Dwi Suatmi Bernadetta
Published: October 2023

Considering the intense competition, the customer satisfaction factor is a serious concern. Customer satisfaction can be a reference for improving the quality of goods to be sold and a tool for self-correction in improving the quality of a good service. Several factors that influence customer satisfaction (Y) in this study included product quality (X1) and service quality (X2). This study aimed to examine the effect of product quality and service quality on customer satisfaction of PT Putralink Makmur Jaya's biomass stoves. The customer satisfaction factor was influenced by many things. Several factors that influence customer satisfaction were product quality and service quality. The present study involved 150 clients. The samples were clients who used a biomass stove. The sample collection was based on a purposive sampling technique in which the research applied a quantitative research approach. Then, the questionnaire method was used by providing a list of questions directly to the respondent. The data analysis was performed using Multiple Regression Analysis through the SPSS version 22.0 program. The results of this study indicated that product quality and service quality have a positive and significant effect on customer satisfaction of PT Putralink Makmur Jaya biomass stove users.
Improvement of Toddler Weight With Giving of Moringa Leaf Extract Biscuit (Moringa oleifera)
Authors: Sembiring Rinawati , Panduragan Santhana Letchmi , Natarajan Satheesh Babu , Poddar Ruma , Purba Agnes , Syapitri Henny , Damanik Elsarika , Sinaga Taruli Rohana
Published: October 2023

Introduction: Weight is an indicator of the nutritional status of toddlers; it shows if they have poor nutrition, undernutrition, good nutrition, or overnutrition. One of the interventions carried out to solve the malnutrition problem is the provision of supplementary foods with various innovations, such as fortified biscuits with the extract of Moringa leaves (Moringa oleifera). This study aims to determine the effect of supplemental moringa biscuits on improving the nutritional status of toddler’s nutritional as seen from the increase in toddler weight. Methods: This quasi-experimental study uses a pre- and post- test design approach. The number of respondents in this study was 113 toddlers. The research was carried out in the work area of the Hinai Kiri Health Centre Integrated Service Unit, Langkat Regency, North Sumatra Province. Results: This shows that there is a significant difference in the weight of the toddler between the first measurement (before the intervention) and the second measurement (a month after the intervention). In the third measurement (2 months after the intervention) there was an increase in the average toddler’s weight, namely 1.18 kg with a p-value = 0.005 which indicated a significant difference between the toddler’s weight with the first measurement and the third measurement (2 months after the biscuit intervention). Conclusion: Moringa oleifera contains multivitamins that are effective in improving the nutritional status of malnourished toddlers. It is suggested that Moringa leaf extract can be used as a supplement to toddlers diets which can be processed according to toddlers’ tastes.
Treatment Outcome Monitoring by Using Sputum Conversion Rate of Tuberculosis Patients in Pkd Kinta, Malaysia
Authors: Lot Shamsol , Al-Mahdi Abdullah Y. , Poddar Sandeep , Nisha Mehru , Poddar Ruma
Published: October 2023

Introduction: A control programme termed Directly Observed Treatment Short-Course (DOTS) is adopted to promote early TB detection and effective TB treatment. An indicator of a successful DOTS programme is the Sputum Conversion Rate (SCR) which is obtained at the end of the two-month intensive treatment to measure the treatment outcome by SCR. The present study determined the association between several factors and the SCR among TB patients attending the DOTS clinic at the Kinta District Health Office (PKD Kinta) in 2017. Methods: The factors included are sociodemographic factors, physical factors, knowledge, attitude, and practice of TB patients. All groups of 150 sputum smear positive pulmonary TB patients enrolled for treatment at PKD Kinta between January and September 2017 were recruited for this study by the cross-sectional questionnaire method. A statistical analysis was performed to determine the association between the variables and the SCR of the TB patients in the DOTS programme. Results: At the end of the two-month intensive period, an SCR of 96.0% was obtained. According to the statistical analysis of the association among sociodemographic factors and SCR, there are no statistical differences between the variables. Similarly, no association was found between the physical characteristics and SCR in the current study. Conclusion: SCR methods are perfect methods used in regular medicine to monitor TB cases’ treatment. The identification of factors influencing the DOTS programme is critical to ensuring the program’s success in eradicating TB in society.