bluuebunny/crossref_metadata_2025 huggingface dataset:
An investigation of the reading culture: the role of libraries to promote reading culture in Pakistan
Authors: Asif Muhammad , Yang Liu
Published: February 2022

The library’s goal is to promote the culture of reading. Not only does the library promote the culture of reading, but also it facilitates access to books for those who love reading. Thus, through the library, its visitors can enjoy not only their lives, but also it allows them to spend their time intellectually. This program has been designed to help people discover the joy of the written word. The primary goal of fostering a love of reading among library patrons is to make it an enjoyable and rewarding pastime. As a result, it is critical to raise awareness about the value of reading for pleasure rather than only learning material for tests and encourage students to make reading a habit. Library Week, which is held each year during the academic session in high school, is one of the ways that libraries can help spread the word about the importance of reading and healthy reading culture. The relevant literature has been assessed in light of the topic by searching both published and unpublished relevant research works. Tylor and Francis Group, ERIC, Emerald, Elsevier, LISA, LISTA, ProQuest Research papers, and Wiley Online Library are addressed as relevant databases. The current study’s findings may also aid in better planning school library services and dealing with the required, complicated, and ever-increasing requirements for book selection, acquisition, and integration. The findings are also aid in the modification and enhancement of educational policy.
AWARENESS AND UTILISATION OF THE BENCHMARKING APPROACH BY THE PRODUCTION ENTERPRISES FROM NORTH BULGARIA
Authors:   aUniversity of Ruse, Bulgaria, PETROVA Irina
Published: February 2022

The purpose of this paper is to evaluate the degree of awareness and utilisation of the benchmarking approach by the Bulgarian enterprises. To achieve the goal set, the author has conducted her own empirical study. The results from the systematization of the data obtained from the conducted survey and their analysis allow the author to make the following conclusions: The implementation of benchmarking and the experience of the best is to be used as an opportunity to evaluate one’s own level, to obtain a clear and objective perception of the strengths and weaknesses, to determine the objects of improvement correctly and to develop and implement a programme for improving the inefficient activities or processes. The benefits of incorporating benchmarking into corporate practice show that it is strategically necessary for their further development. The literature study shows lack or insufficiency of information for implementing the benchmarking approach as an innovative one in the Bulgarian practice.
THE EDUCATION REFORM: A TEACHERS’ PERSPECTIVE
Authors:   West University of Timișoara Romania, NAAMAN Shimon
Published: February 2022

Teachers are the stalwart of the education system and the most significant factor affecting its success and achievements, and their commitment to the social, moral and academic education of students is therefore a prerequisite to the success of the education system as a whole. Unfortunately, teachers’ professional status has declined over the years; the system and its teachers yearn for reforms as a means of adapting the system to the twenty-first century. This research examined teachers’ attitudes towards the reforms, a decade after their introduction. Its goal is to discover whether the latest reforms in Israel achieved their goals and improved teachers’ status? This was explored from the teachers’ perspective – professional status, their perceptions of self as teachers. A New Zealand study on teachers’ status notes three primary components: power, money, and fame. Teachers are considered to be of low status, despite the existence of the secondary factors in the professional aspect. They are professionally trained, skilled, and significantly impact the future of society. Nevertheless, none of these factors independently lead to a high professional status. We surveyed 359 middle and high school teachers in Israel and performed a stepwise regression analysis which revealed the presence of three explaining variables. Teacher status can thus be explained through salary, improved image, and empowerment [F(3,296)=61.85, P<0.05]. Predicting variables explained 67.8% of teacher status variance, with the most significant variable explaining teacher status variance being salary – 52.1%.
PROPOSING AN AGGREGATED MEASUREMENT OF INNOVATION: THE COMPOSITE INNOVATION INDEX (CII)
Authors:   Dunărea de Jos University of Galaţi, Romania, ŞTEFAN Robert
Published: February 2022

In order to make innovation as tangible as possible, it is necessary to structure creativity. Therefore, innovation processes should be constantly monitored and quantified, like any other aspect of an organization’s performance. A 2010 survey reveals that only 22% of top managers have implemented innovation-performance measurement indicators in their organizations. This indicates that most of the global innovation phenomenon is still waiting to be measured, evaluated and streamlined, by virtue of fundamental benefits such as: efficient allocation of resources, focus of innovative efforts and maximizing value in the company. The Composite Innovation Index is a tool proposed for the market or industry-wide measurement of innovation and is based on 6 main determinants of innovation, named “dimensions” of innovation. Data for the computation of the index is surveyed by the questionnaire or interview methods. After having designed a questionnaire addressed to management employees of the banking industry in Romania, the Composite Innovation Index obtained thereby reveals a somewhat below-average level of proactivity of the banks in Romania in the phenomenon of innovation.
THE STRATEGIC POSITIONING OF THE PURCHASING FUNCTION WITHIN THE ORGANIZATIONS
Authors:   Bucharest University of Economic Studies, Romania, TOMA Simona , DEACONU Alecxandrina ,   Bucharest University of Economic Studies, Romania
Published: February 2022

The purchasing department is perceived, more and more, as an important stakeholder within an organization structure. The position of the purchasing function in a well-organized company could reveal its importance acting as a strategical internal driver influencing finance, operations, social responsibility and human resources. However, the positioning of the purchasing function within the organization structure is yet to be identified. In the present paper we use in depth bibliographical documentation and semi-structured interviews performed with the management representatives of twelve companies within banking and pharmaceutical fields of activity. We found out that there is almost a consensus to place the purchasing department immediately under the hierarchy of the organization’s top executive management. This trend will continue, as the purchasing function may bring benefits by supporting and influencing the business strategy.
ERGONOMICS, SUSTAINABILITY AND PERFORMANCE
Authors:   Technical University of Cluj-Napoca, Romania, FIRESCU Violeta
Published: February 2022

In the context of the global crisis there is an increasing interest regarding sustainability. While the focus of debate was at the beginning mainly on society level, sustainability issues have currently a growing relevance for social and economic organizational performance. The paper aims to present arguments for considering ergonomics as a support for organizational sustainability. Based on sustainability reports and ergonomics literature review, the paper highlights the essential role of work systems’ ergonomic design and finds supporting arguments about ergonomics interventions’ impact on organizational performance. The contribution of the paper focuses on helping companies and top managers to understand the impact of ergonomics interventions on decreasing social and economic costs, related especially to occupational health and safety hazard prevention.
ASPECTS OF ORGANIZATIONAL COMMUNICATION INFLUENCING THE SUCCESS OF CHANGE
Authors:   Bucharest University of Economic Studies, Romania, VOICA Orlando , VEITH Cristina ,   Bucharest University of Economic Studies, Romania, ISBAITA Iyad ,   Bucharest University of Economic Studies, Romania
Published: February 2022

This paper aims to analyse some organizational routines that can influence the success of organizational change. Thus, we analyse several communicational elements that influence the implementation of a change, from the perspective of their interdependence. The data were collected through an online questionnaire and statistically evaluated. The quantitative analysis was based on the responses to questionnaire from 258 organizations in both public and private sectors. We hypothesized that a successful change is reliant on some particular factors specific to the communication process. The analysis revealed that a personalized, demanding-focused communication is a determining factor for the success of any change. Materialized through the proper channel, this approach can determine the active and long-lasting involvement of team members in change implementation and goal-achievement processes. Our actual research is limited in scale and scope, but its results are important for practitioners that intend to realize organizational changes, emphasizing the communication elements that they should focus on. Also, our study might be a support for future researches that focus on the impact that communication have on knowledge management processes during the organizational change initiatives.
HUMAN BEHAVIOUR IN TIMES OF CRISIS. ANTHROPOLOGICAL AND SOCIOLOGICAL INSIGHTS
Authors:   Bucharest University of Economic Studies, Romania, BĂLAN Sergiu , VREJA Lucia Ovidia ,   Bucharest University of Economic Studies, Romania
Published: February 2022

One of the constants of our species’ history is the fact that from time to time people find themselves in the situation of being forced to cope with events that put a great amount of pressure on certain aspects of humanity’s existence, or even endanger this very existence. Due to the deeply disturbing nature of these situations, we call them crises, and one of them, generated by the COVID-19 pandemic, is right now in full swing. How humanity reacts in these circumstances is of the utmost importance. For this reason, in our paper we tried to argue that people should not give in to the urge to act driven by panic or by inappropriate ideas about the nature of the ongoing phenomenon. One of the most dangerous ideas is that a crisis is first and foremost an opportunity, a welcomed occasion for a possible ‘reset’ of the very society as a whole. We then tried to argue that any reaction to the ongoing crisis must be based on a correct understanding of the phenomenon, both as a whole, but also in its details. For this reason, believing that anthropology and sociology can provide fundamental insights, appropriate perspectives for investigation and useful factual information, we have provided in the article some insights from the point of view of these disciplines to help shape this understanding of the ongoing crisis.
PELATIHAN PEMBUATAN SOKET KAKI PALSU MENGGUNAKAN BAHAN BAHAN KOMPOSIT SERAT BAMBU
Authors: Irawan Agustinus Purna , Sukania I Wayan , Anggarina Paula T.
Published: February 2022

Indonesia is a country rich in natural fibers. Natural fibers have the potential to be developed further into alternative products that are beneficial for the welfare of society. Natural fibers, including bamboo, hemp and rattan, have the potential to be developed into cheap, strong, safe, and comfortable biomaterials. One product that can be developed based on natural fiber composites is a prosthetic leg socket. In this community service activity, manufacturing technology use to build prosthetic sockets includes the usage of bamboo fiber composite materials and an epoxy matrix. One of the Community service activities carried out is the training for Small and Medium Enterprises engaged in the manufacture and marketing of prosthesis products, to produce socket prostheses using epoxy bamboo fiber composite materials. Through this activity, it is hoped that the appropriate technology that has been obtained through research activities funded by the Higher Education research grant, can be more beneficial for Small and Medium Enterprises and be used in the production process of socket prostheses which are cheaper, stronger, environmentally friendly and made with materials which are still abundant. Based on the results of these community service activities, some training has been given to Small and Medium Enterprises so that they can produce prosthetic leg sockets made of bamboo fiber composite material.ABSTRAKIndonesia adalah negara yang kaya dengan serat alam. Serat alam berpotensi untuk terus dikembangkan menjadi produk alternatif yang bermanfaat bagi kesejahteraan masyarakat. Serat alam antara lain bambu, rami dan rotan, sangat berpotensi untuk dikembangkan menjadi biomaterial yang murah, kuat, aman, dan nyaman. Salah satu produk yang dapat dikembangkan berbasis komposit serat alam adalah soket kaki palsu. Pada kegiatan pengabdian pada masyarakat ini, diimplementasikan teknologi manufaktur pembuatan soket kaki palsu dengan menggunakan bahan komposit serat bambu dan matriks epoksi. Kegiatan pengabdian pada masyarakat yang dilaksanakan adalah pelatihan kepada UMKM yang bergerak di bidang pembuatan dan pemasaran produk prosthesis, untuk memproduksi soket prosthesis dengan menggunakan bahan komposit serat bambu epoksi. Melalui kegiatan ini, diharapkan teknologi tepat guna yang telah diperoleh melalui kegiatan penelitian yang dibiayai oleh hibah penelitian Dikti, dapat lebih bermanfaat bagi Usaha Kecil dan Menengah dan digunakan dalam proses produksi soket prosthesis yang lebih murah, kuat, ramah lingkungan dan bahan yang melimpah. Berdasarkan hasil kegiatan pengabdian kepada masyarakat, telah diberikan pelatihan kepada Usaha Kecil dan Menengah, sehingga dapat memproduksi soket kaki palsu dari bahan komposit serat bambu
Formulasi dan Uji Aktivitas Gel Anti Jerawat Ekstrak Etanol Daun Belimbing Wuluh (Averrhoa bilimbi Linn)
Authors: Hanip Akhmad Ifda , Mayasari Dewi , Indriyanti Niken
Published: February 2022

Averrhoa bilimbi Linn is a plant that is used by the local community as an itchy and acne remedy. Secondary metabolite content of ethanol extract of Starfruit leaves (Averrhoa bilimbi Linn) can inhibit the growth of acne bacteria. The purpose of this study was to determine the best concentration in the manufacture of anti-acne gel formulations of ethanol extract of Starfruit leaves (Averrhoa bilimbi Linn) using HPMC base. Extract concentrations were made of 5%, 7.5%, and 10%. After antibacterial tests, the extract concentration used was 7.5% with a inhibition zone of 11.17 mm P.acnes bacteria and 11.30 mm S.aureus bacteria. Anti-acne gel ethanol extract of starfruit leaves (Averrhoa bilimbi Linn) made 3 replication formulas with extract levels FR1 (7.5%), FR2 (7.5%) and FR3 (7.5%). The results showed that the color of the dark green preparation, distinctive smell, thick, no syneresis, ph 4.7-6.2, scatter power 4.6-5.2 cm, clinginess 6-22 seconds and viscosity of 11-20 Pa.s. Antibacterial activity tests on P.acnes showed a inhibition zone of 10.1-10.73 mm and S.aureus showed a inhibition zone of 10.35-10.93 mm. So, it was concluded that the formulation of anti-acne gel was able to inhibit the growth of  P.acnes and S.aureus bacteria and meet physical characteristics.
Uji Toksisitas Ekstrak Berbasis Nades dari Daun Kadamba (Mitragyna Speciosa Korth) terhadap Mencit (Mus Musculus)
Authors: Afandi Fauzan , Siregar Vita Olivia , Ahmad Islamudin
Published: February 2022

Traditionally, kadamba leaves have benefits for treating diarrhea, diabetes, pain, rheumatism, gout and have been scientifically proven to be antinociceptive and inhibit T47D breast cancer cells. This study aims to determine the toxicity of NADES-based extract from kadamba leaves by looking at the LD50 value and its effect on body weight and behavior of mice. The 15 mice used were divided into 5 groups with 3 mice in each group. The NADES-based extract from kadamba leaves was given orally with various doses of 4000 mg/KgBB, 8000 mg/KgBB, 16000 mg/KgBB, and 32000 mg/KgBB and one group was given a solvent. Each group was observed for 30, 60, 120, 180, and 240 minutes after administration of the extract and the observations were continued for 14 days to observe toxic symptoms, changes in body weight and death. Based on the results of the study, no deaths were found in the solvent group, 4000 mg/KgBB, and 8000 mg/KgBB. For the group with a dose of 16000 mg/KgBW, 2 mice died and the group with a dose of 32000 mg/KgBW found the death of 3 mice, so the LD50 value obtained was 14.256 g/KgBW which was included in the practically non-toxic category.
Pengaruh Pemberian Aromaterapi Pandan Wangi (Pandanus amaryllifolius) dan Lemon (Citrus limon L) dalam Menurunkan Tekanan Darah
Authors: Al-Mira Jihan , Ramadhan Adam M. , Aryati Fika
Published: February 2022

Fragrant pandan and lemon contain linalool compounds as much as 6% in fragrant pandan and as much as 20-50% are found in lemons, linalool compounds are very useful for stabilizing nerves so that they can have a calming effect. This study aims to determine the characteristics, description of the respondent's blood pressure before and after being given aromatherapy, and the effect of giving pandanus and lemon aromatherapy on the blood pressure of hypertension respondents who live in the Sempaja Timur Village. The research method used is a quasi-experimental method with a one group pretest and posttest design with a total of 20 respondents. The research procedure uses initial and final measurements. The results showed that the characteristics of the highest hypertension respondents were female as many as 15 respondents( 75%), 10 respondents aged 60 years (50%), work as a housewife as many as 13 respondents (65%), and the antihypertensive drug consumed was amlodipine as much as 20 respondents ( 100%). The results of this study found that there was an effect of giving aromatherapy pandanus and lemon on systolic blood pressure before being given aromatherapy with an average of 162.6 mmHg and after being given aromatherapy an average of 156.4 mmHg while diastolic blood pressure before giving aromatherapy was on average by 99.6 mmHg and after being given aromatherapy an average of 94.4 mmHg. The results of the descriptive study of giving fragrant pandan and lemon aromatherapy are in line with the results of statistical analysis using the Wilcoxon test method and the paired sample t-test with a p value (0,000) <0.05. hypertension significantly.
Uji Aktivitas Antibakteri Ekstrak Daun Gelinggang (Cassia alata L)
Authors: Oktavia Khofifah Nur , Aryati Fika , Herman Herman
Published: February 2022

Traditionally, gelinggang leaves are widely used for treatment of various skin diseases. The potential of gelinggang leaves as a medicinal plant is expected due to the presence of secondary metabolite compounds that have activities, one of which can inhibit the growth of fungi and bacteria. This study aims to determine the antibacterial activity of gelinggang leaf extract against Staphylococcus aureus and Escherichia coli bacteria. The study began with extraction process of gelinggang leaves, phytochemical screening tests and testing of antibacterial activity from gelinggang leaf extracts carried out by the agar diffusion method using a well. Gelinggang leaf samples were macerated with 96% ethanol solvent and then tested for antibacterial activity in concentrations of 5%, 10%, and 15%. The results of the phytochemical screening test indicated that the gelinggang leaf extract was positive for flavonoids, saponins, phenolics, and terpenoids. On antibacterial activity test of the ethanolic extract of gelinggang leaves, it revealed that there was an inhibition activity for both Staphylococcus aureus and Escherichia coli bacteria with the best activity at a concentration of 15%.
Aktivitas Penghambatan Radikal Bebas Difenil Pikril Hidrazil (DPPH) Ekstrak Daun Macaranga magna Turrill
Authors: Minarti Minarti , Ariani Novita , Ernawati Teni , Darmawan Akhmad
Published: February 2022

Degenerative disease is a disease that has a large number of sufferers in Indonesia and throughout the world, one of the causes of many sufferers of degenerative diseases such as diabetes and cancer is the large amount of exposure to free radicals in the body as a result of an unhealthy lifestyle. Antioxidant compounds are one of the chemical compounds that can be used and utilized to inhibit the oxidation process as a result of the presence of free radicals, so that the incidence of degenerative diseases can be suppressed. In this study, the active extraction and fractionation process from Macaranga magna Turrill leaves which have antioxidant activity and can be developed as a compound inhibiting the oxidation process of free radicals using the chromatographic method, as well as testing the antioxidant activity using the free radical inhibition method 1,1-diphenyl-2- picrylhydrazyl (DPPH). Preliminary test results of antioxidant activity on the methanol extract of Macaranga magna Turrill leaves are known that this plant has potential as an antioxidant with an IC50 value of 11.13 ?g/mL, this is also supported by the test results of total flavonoids 19.47 mg QE/g extract and total phenol 37, 77 mg GAE/g extract.
Isolasi Fungi Endofit Daun Kopi Robusta (Coffea canephora)
Authors: Rizkyanti Nilam Ratna , Herman Herman , Aryati Fika
Published: February 2022

Endophytic fungi are organisms that live in plant tissues that have the potential to produce the same secondary metabolites as their host. This study attempted to isolate and also characterize endophytic fungi from Robusta coffee leaves (Coffea canephora). Data collection was carried out in several stages, namely isolation of endophytic fungi by surface sterilization method, and conventional characterization of endophytic fungi by observing the morphology of endophytic fungi.  The results showed that as many as 4 isolates of endophytic fungi were isolated from Robusta coffee leaves (Coffea canephora) with macroscopic characteristics of white color with orange circle edges, cotton-like shape, and green and orange spots on the underside of the fungus.
Uji Antioksidan Ekstrak Metanol Kulit Batang Pule (Alstonia scholaris) khas Kalimantan dengan Metode DPPH
Authors: Halimah Nur , Bone Mahfuzun , Prasetya Fajar
Published: February 2022

Pule (Alstonia scholaris) is one of the plants that are empirically often used in medicine. Pule bark contains flavonoids which can generally be used as antioxidants. This study aims to determine the content of secondary metabolites and antioxidant activity of the methanol extract of pule bark by determining the IC50 value of the extract. The secondary metabolite test was carried out by reacting the extract with phenolic test reagents, steroids, terpenoids, saponins, flavonoids and alkaloids. The antioxidant activity test was carried out using the DPPH method (2,2-Diphenyl-1-Picrylhydrazil). Antioxidant activity was measured by the ability of the methanol extract of Pule bark to reduce DPPH which was measured using a UV-Vis Spectrophotometer so that absorbance data was obtained and then processed by linear regression method. The results showed that the extract contained phenolic and flavonoid compounds. While the DPPH test showed that the extract had weak antioxidant activity with an IC50 value of 472.473 ppm.
Kajian Penggunaan Obat Off-Label Pada Penyakit ISPA Pasien Pediatri di RSUD Majene
Authors: Syafitri AR Nurul , Faisal Muhammad , Indriyanti Niken
Published: February 2022

Acute Respiratory Infection (ARI) is an infection that attacks the human respiratory tract with the highest number of sufferers being found at the age of toddlers. The limitations of the types of drugs that can be used in the age range of children aged 0-2 years cause the treatment of patients to use off-label drugs. categories of off-label age, off-label indication and off-label route of administration. This study is a descriptive type of research with data collection carried out retrospectively, there are 88 medical records of pediatric patients with a diagnosis of Pneumonia, Common Cold, Allergic Rhinitis and Asthma At Majene Hospital in the period January to December 2020. Male (55.68%) and female (44.31%) and found 26 off-label drug prescriptions, off-label drug use classified as off-label age 19, off-label indication use 5 and the use of off-label route of administration 2. The most widely prescribed type of off-label drug is Chlorpheniramine Maleate. According to the literature, the use of off-label drugs is based on a sound scientific basis with low risk. Based on the results of this study, it is known that the use of off-label drugs in children is quite high so that pharmacists need to monitor the risks related to drug use.
Formulasi Sediaan Liniment Aromaterapi dari Minyak Atsiri Bunga Kenanga (Cananga odorata)
Authors: Ayuni Ragil Sekar , Rahmawati Dewi , Indriyanti Niken
Published: February 2022

Cananga essential oil has potential as an antidepressant and a relaxant for the nervous system, containing a compound, namely linalool from the monoterpene. The innovation of topical pharmacy preparations with the active ingredient of cananga essential oil is a useful. The purpose of this study was to formulate cananga essential oil with concentrations used of 1%, 2% and 4%. The results showed that formulas I, II and III had met the physical quality evaluation. The results of the organoleptic test of the three formulations were in the form of a liquid, a characteristic odor of cananga flower along with eucalyptus oleum and a light yellow color. The results of the pH stability test obtained an average of 4.2 formulations, 4.9 formulations II and 5 formulations III. The homogeneity test results from formulations I, II and III obtained homogeneous results. The results of the anti-irritation test of formulations I, II and III did not cause irritation. The overall results of the preference test showed that the panelists preferred the liniment preparation at a concentration of 4%. Concluded that the formulation of liniment with the active ingredient of cananga essential oil produced preparations that met the physical characteristics and hedonic tests.
Isolasi dan Karakterisasi Kitosan dari Limbah Cangkang Kerang Asia (Corbicula fluminea)
Authors: Amelia Rizki Noor , Aryati Fika , Sastyarina Yurika
Published: February 2022

Chitosan is a substance contained in shellfish that is the most biopolymer after cellulose. The study aims to determine the best yield of chitosan results of Asian shell isolation (Corbicula fluminea) based on variations in Sodium hydroxide concentration and length of deacetylation process, and to find the characteristics of chitosan isolation results based on International Standards. The process of chitosan isolation goes through several stages, namely deproteination using a solution of Sodium hydroxide 3,5% at a temperature of 65°C for 2 hours, demineralization using a solution of Hydrochloric acid 1N at a temperature of 65°C for 2 hours, and the stage of deacetylation that is optimized with variations in Sodium hydroxide concentration of 40%, 50%, and 60% and variations in the length of stirring time of 30, 60, and 90 minutes. The results showed the best chitosan yield of 90,1% obtained from the deacetylation process using a Sodium hydroxide concentration of 60% with a stirring time of 60 minutes. The resulting chitosan characteristics are white powder, odorless, soluble in 2% acetic acid, and has a water content of 0%.
Hubungan antara Pengetahuan dan Perilaku Masyarakat Kecamatan Biatan Kabupaten Berau terhadap Penggunaan dan Resistensi Obat Antibiotik
Authors: Aprilia Vina Mardiyanti , Mita Nur , Ramadhan Adam M. , Sulistiarini Riski
Published: February 2022

Antibiotics are drugs used to treat infections. Infection is a disease problem that often occurs in developing countries in Indonesia. The purpose of this study was to determine the level of knowledge and behavior of the community in the use of antibiotics and the relationship between knowledge and behavior in the use of antibiotic drugs in the people of Tanjung Redeb District, Berau Regency. This research was conducted by distributing questionnaires to 119 respondents using a cross sectional method with purposive sampling of respondents. The results showed that the level of knowledge of the people of Berau Regency was quite good, namely 47.89% and the results of research based on community behavior were well-behaved with a percentage of 42.01%. The results of the Spearman correlation analysis show that there is a relationship between the level of knowledge on behavior with a correlation coefficient of 0.258, so the relationship between variables is low.
Skrining Fitokimia dan Profil KLT Ekstrak dan Fraksi dari Daun Berenuk (Cresentia cujete L.) serta Uji DPPH
Authors: Kinam Brigita Olivia Intan , Prabowo Wisnu Cahyo , Supriatno Supriatno , Rusli Rolan
Published: February 2022

Berenuk or Maja Leaves (Cresentia cujete L.) is a plant that grows in the tropics. In Indonesia, the use of Berenuk Leaves for health is not utilized optimally, and there is still a lack of research on this plant. To be able to be developed as a traditional medicinal ingredient, it is necessary to know the content of secondary metabolites contained in berenuk leaf extract. This study aims to determine the secondary metabolites contained in berenuk leaf extract through phytochemical screening, TLC profile in C. cujete L. leaves. Extraction was carried out using methanol by maceration. After fractionation were carried out by using n-hexane and ethyl acetate as solvents. Then, a phytochemical analysis was screened and a TLC bioautography. Secondary metabolites by the compounds contained in C. cujete L. are alkaloids, tannins, saponins and steroids. C. cujete L. which has antioxidant activity was marked with yellow spots on TLC plates that had been sprayed with DPPH.
El rendimiento académico de los estudiantes vinculados al robo de combustible. Región Puebla, México
Authors: Benítez Sánchez Rogelio , Espejel Rodríguez Adelina
Published: February 2022

El objetivo de la investigación es conocer el rendimiento académico (RA) de los jóvenes de nivel secundario, vinculados con la extracción y venta ilegal de hidrocarburos, desde la perspectiva docente y del estudiante, antes y después de la llegada de los huachicoleros, en cinco municipios de la región centrooriente de Puebla. Se efectuó mediante una metodología cualitativa, donde se realizaron entrevistas y cuestionarios a docentes y a estudiantes de instituciones educativas de la región con altos índices de extracción ilegal de hidrocarburos directamente de los ductos de Petróleos Mexicanos (PEMEX). El alto índice delictivo en la región, aunado al aumento de jóvenes vinculados al crimen organizado, perturbó el ámbito educativo. Se encontró que el 70% de los docentes coincidieron en que hubo una disminución significativa en el RA y el 30% aseguró que no hubo cambios en su RA, pero todos coincidieron en que se presentó un cambio conductual. Se concluye que la extracción y venta ilegal de hidrocarburos ha trastocado el ámbito educativo y también el desempeño de los estudiantes, manifestándose bajo una intimidante posición de temor por parte del docente y, visto desde la perspectiva del estudiante, como un trabajo normalizado al cual debe darle prioridad, dando como resultado un rezago en la educación.
Transdisciplinariedad, transversalidad y modelos de formación alternativos
Authors: Correa Mosquera Deicy , Carlachiani Camila María
Published: February 2022

Este documento tiene como propósito presentar algunos planteamientos sobre los conceptos de transdisciplinariedad y de transversalidad, los cuales pueden considerarse principios subyacentes a la construcción de modelos de formación orientados a la producción de nuevas prácticas pedagógicas en la educación superior que trasciendan las actuales maneras de enseñar, las cuales generalmente están basadas en currículos agregados (Bernstein, 1977).

Para tal efecto, en primer lugar se hace referencia a las relaciones entre transdisciplinariedad y transversalidad. En segundo lugar, se avanza en la conceptualización de lo que se entiende por modelo. En tercer lugar, se presentan algunas consideraciones sobre lo que configura un modelo de formación transversal para la educación superior. Finalmente, se elaboran algunas conclusiones y recomendaciones en relación con la importancia que tienen el fomentar el pensamiento transversal en los procesos de formación. Estos puntos son complejos, dada la diversidad de enfoques que hay sobre transdisciplinariedad, modelo, modelo de formación y modelo de formación transversal, y sobre el tratamiento aislado de estos conceptos que se han vuelto relevantes en la educación superior, especialmente en la universidad. De allí el interés en dar un abordaje sistémico acerca de los mismos, procurando establecer sus relaciones verticales y horizontales.
Sentiment Visualization of Covid-19 Vaccine Based On Naive Bayes Analysis
Authors: Putri Aprilia Nabilah , Pratiwi Dian , Barlianto Ariwibowo Anung
Published: February 2022

COVID-19 is one of the topics that is being discussed intensively. The virus which was declared a global pandemic on March 11 by WHO caused around 2.09 million Indonesians to be infected with the COVID-19 virus. To overcome this, the government carried out a vaccination program. The data taken for this study is public opinion about the COVID-19 vaccine written on Twitter. The number of opinions written on Twitter requires classification according to the sentiments they have, whether they tend to be negative opinions or positive opinions using lexicon-based The idea of this research is to classify the covid vaccination dataset using the naive Bayes classifier method and visualization using word cloud. Crawling to obtain the dataset from Twitter, text pre-processing and labelling to determine the positive and negative classes, TFIDF feature extraction, data splitting with a percentage of 80% for train data and 20% for data testing, and finally classification using nave Bayes are the stages in this research The system's sentiment analysis research yielded significant results, the accuracy value is 73.1%, the precision value is 73% and the recall value is 83%.
Turismo y centros históricos. Los espacios urbanos transversales del río Guadalmedina, en la ciudad de Málaga
Authors:   Universidad de Sevilla (España), Royo Naranjo Lourdes , Gómez Márquez Isabel , Laguna Bolívar Ángela ,   Universidad de Sevilla (España)
Published: February 2022

The project starts from the study and implementation of an intervention methodology on the transversal urban spaces of the Guadalmedina river in the city of Malaga. The main objectives of the study are defined as the development of an intervention methodology capable of allowing the architectural discipline responses that work on new ways of inhabiting and living these spaces. The results applied to this approach show the need to define real and valid strategies, based on a series of actions that are developed in future planning and whose direct impact will be on the population. Bearing in mind that one of the main challenges that cities currently face is the rehabilitation of historic centers and their habitability, our research project focuses its attention on the reconsideration of public spaces where unresolved mobility issues are present. accessibility, problems derived from gentrification, sustainability.
Through Casing Fractures Mapping Using Acoustic Measurements: A Case Study in Najmah-Sargelu Formation, West Kuwait
Authors: Nguyen Kim Long , Saqran Fawaz , Bouchou Ramdane , Cazeneuve Eduardo
Published: February 2022

The Jurassic Najmah-Sargelu formations in Kahlula field of West Kuwait is a tight carbonate fractured reservoir. In such tight environment, the fractures are the most contributing to oil production. Therefore, fracture characterization is required to optimize reservoir production. However, because of the difficult drilling environment, the acquisition of open-hole logging data is not guaranteed. Moreover, as the conventional imaging tools (resistivity or ultrasonic) can only be operated in open-hole, any fracture evaluation would be a significant challenge after the well is cased. This paper presents a method how to characterize geological features such as natural fractures, faults and beddings in cased-hole, in the absence of conventional open-hole image logs.

The Deep Shear Wave Imaging (DSWI) is the method used to characterize fractures network in this case study. The method consists of using through casing borehole acoustic measurements to map fractures, or any other geological features such as faults and beddings. Standard wireline acoustic and cement bond log services were logged in a cased well covering Najmah-Sargelu formations. The acquired acoustic data are monopole, in-line dipole and cross-line dipole waves. The dipole waves were used to map the fractures, and the other geological features, crossing the wellbore and none-crossing the wellbore when they are in the area of investigation. The cement bond log data were acquired to evaluate cement bond quality behind casing for well integrity purpose, and also for well completion purpose. The fracture mapping technique is basically the analysis of the very weak wave signals reflected back from the formation when the transmitted waves hit a reflector with an acoustic impedance contrast. This reflector can be a fracture, a bedding plane, or a fault. The low attenuation property of the flexural waves allowed us to see fractures up to 100 feet away from the wellbore. The analysis allowed locating the fractures along the wellbore, their extension in the formation, their dip angle, and their location relative to the wellbore.

Well-X sidetrack in Kahlula field was selected to evaluate DSWI technique. If the result is promising then it will be implemented widely across West Kuwait fields. The benefit of using Well-X is that it already had open-hole image logs in the main bore to validate DSWI results. The result illustrated that fractures picked from DSWI matched well with what has been observed from the main bore of Well-X. Consequently, the DSWI result were used to select the most fractured intervals for testing and completion design in Well-X sidetrack. The tested interval showed commercial oil production with minor water cut. The successful application of DSWI enabled the deployment of this technique in West Kuwait fields to replace open-hole image logs in case the acquisition of openhole logging data cannot be conducted due to harsh well conditions.
Least-Squares Multiple Imaging for 3D Surface-Related Multiple Elimination on Land Data
Authors: Li Brandon , Miorali Mattia , Mills Keith , Poole Gordon
Published: February 2022

Shallow reflectors which generate surface related multiples, can deteriorate image quality and hamper amplitude analysis. Typically, in land seismic data, the severe noise level and near-surface complexity make surface multiples difficult to identify and remove. In this paper, we present a least-squares multiple imaging (LSMI) driven de-multiple method which targets short and medium period surface multiples. The process involves inversion for a shallow multiple generating reflectivity, which is then used to drive the multiple modeling. The method allows true amplitude modeling, so minimal adaption is required at the subtraction stage. We demonstrate this method on a high-density land dataset acquired in Algeria. The results show that the multiple generator image gives better near-surface illumination and continuity compared to the conventional primary imaging approach. The strong multiple energy present in the near angle is largely suppressed, leading to less ringing and a more interpretable seismic image. Compared with surface-consistent deconvolution, the proposed de-multiple approach extends the amount of reverberation being attenuated, this is particularly effective on low-frequency multiples.
Use of Mixed-Metal Oxide Water-Based Drilling Fluid System Increased Drilling Performance and Eliminated Mud Losses
Authors: Javay Alexandre , ElBatran Ahmed , Sharma Sunil , M. Franco Nata , Corona Mauricio , A. Alismail Ahmed
Published: February 2022

In a deep gas drilling project, the 22-in section across shallow fractured carbonates is drilled using an unweighted clay-water system incorporating up to 50-lbm/bbl bentonite. The main challenges comprise lost circulation, tight hole, and low penetration rates due to high clay content and lack of inhibition, resulting in geological complications and affecting the well delivery time.

To seal off the large fractures in the lower-cretaceous limestones, the new drilling fluid was engineered with high thixotropic characteristics presenting a flat, shear-thinning rheological profile with low plastic viscosity, high yield point and flat gel strengths. The selection of candidate wells was supported by offset wells analysis considering drilling performance, penetration rate and footage achieved, and the likelihood of encountering losses. Fine-tuning of the fluid rheology was performed to effectively account for the probability of losses on each well and a fit-for-purpose drilling fluid formulation was designed.

This innovative technology combining mixed-metal oxide with premium bentonite was run in a series of wells as a substitute to the previously used system. Due to its superior viscosity at low shear rates the fluid successfully prevented losses by gelling up in the interstices of the highly fractured limestone intervals. In addition, the fluid delivered higher drilling performance across the abrasive sandstone-clay intercalations and the hard carbonates toward the bottom of the section.

By maintaining full circulation all way through and therefore avoiding the expenses associated with blind drilling and pumping mud cap, the initiative resulted in considerably lowering the fluid cost in this section. Significant operation time savings were also achieved by drilling the section faster to the intended casing point in a minimum number of runs. Enhanced wellbore condition that allowed the drill string to trip out on elevators instead of back-reaming also contributed to saving rig time. The casing could be run to bottom and cemented trouble free in one stage with cement returns to surface thus precluding the cost of stage collar tool in most of the wells. This paper unveils the facets of this versatile water-base fluid that was introduced as a solution to prevent losses and address poor drilling performance.
Optimization of ESP Completion Deployment Procedures in Multilateral Wells: Tractor vs. Other Techniques in High Inclination Wells, Challenges and Advantages
Authors: Abojubara Ahmed , Yakovlev Timofey
Published: February 2022

OBJECTIVE/SCOPE

Artificial lift systems, such as electrical submersible pumps (ESPs), need to be placed as close to the reservoir as possible to maximize their performance and increase longevity. Horizontal wells require setting of the ESP packer in a highly deviated section, where installation of temporary barriers to facilitate the setting of such a packer is a challenge. A feasible solution to this challenge has been identified in a robotic e-line (tractor) intervention technique.

METHODS, PROCEDURES, PROCESSES

The problem can be addressed in several ways:–Revise the well trajectory plan to have the ESP tangent section with a lower deviation close to the reservoir so it can be accessed by standard intervention methods.–Run new tools, such as dissolvable balls or plugs to create a temporary pressure barrier.–Access the deviated section via coiled tubing.–Access the deviated section via robotic intervention tools on e-line (Tractor).

All these methods will be reviewed in this paper with an economic and operational comparison based on experiences from various oil fields.

RESULTS, OBSERVATIONS, CONCLUSIONS

All the methods stated above have implications not only in drilling and completion processes, but further into the life of the well. For example, drilling the well with greater deviation leads to an increase in complexity of the drilling process, where higher dogleg severity is required to land the well, and moreover, creates additional challenges to deploy the openhole completion and to achieve the well objectives. Additionally, ESP placement requires a 200 ft tangent section, which will increase the short radius trajectory complexity. The use of dissolvable plugs and balls often adds uncertainty to the timing of a completion process, where any delay in procedures can lead to loss of the barrier; and additional safety factors related to dissolution timing may otherwise lead to preventable non-productive time. Coiled tubing is a robust solution, but it is less mobile and swift in comparison to robotic intervention solutions together with nippleless high expansion plugs. The combined use of a self-anchoring stroker tool with a conveyance tractor enables a toolstring to reach highly deviated sections of the well, offering great flexibility in well design and efficiency during completion the stage, which is attractive economically. The stroker tool offers large push and pull force available in-situ resulting in effective plug retrieval and contingency options.

NOVEL/ADDITIVE INFORMATION

The paper provides an overview and comparison (operational and economic, with attention to long-term effect) of possible solutions to oilfield challenges as stated above and describes how it has in practice been resolved practically. It should be of interest to a wide range of drilling and workover engineering professionals.