bluuebunny/crossref_metadata_2025 huggingface dataset:
Sistem Informasi Tabungan Siswa (Sitasi) Berbasis Website Dengan Model PIECES
Authors: Rifqi Hakim Azzah , Surya Putra Abimanyu , Maula Nikmatul , Ayu Santika Cindy , Rinanda Prameswari Dea T , Rousyati Rousyati , Fandhillah Fandhillah , Mubarok Husni , Abror Dzulchan , Warjiyono Warjiyono , Ulumuddin Ulumuddin
Published: July 2023

Student savings is a form of activity that aims to educate students about the importance of saving and good financial management. Student savings also help students prepare for the future, develop savings habits, and understand the importance of discipline in managing finances. This study discusses the development of a website-based Student Savings Information System (Citation) as a solution to replace the manual student savings system at Nurul Iman Islamic Vocational School. Stasi uses information technology and the internet to facilitate the management of student savings. This system provides advantages and convenience for educational institutions, teachers, students, and parents. The research method used includes data collection through direct observation and the application of the PIECES Analysis method (Performance, Information, Economy, Control/Security, Efficiency, Service). This method is used to process data relevant to research. With the existence of a website-based Student Savings Information System (SITAS), it is hoped that the management of student savings can become more efficient, transparent, and provide greater benefits for students, teachers, and educational institutions as a whole. Through Citation, students can learn about the importance of saving and managing finances responsibly from an early age.
ANALISIS STRATIGRAFI DAN RUMUSAN SEJARAH GEOLOGI DAERAH LIMBATO DAN SEKITARNYA, KABUPATEN GORONTALO UTARA, PROVINSI GORONTALO
Authors: Rahman Mohamad Riski , Zainuri Ahmad , Manyoe Intan Noviantari
Published: July 2023

Regionally, the research area is composed of volcanic and plutonic rocks. Stratigraphic data of the study area are still regional scale. This study aims to analyze detailed stratigraphic data and formulate the geological history of the Limbato area and its surroundings. The area located at coordinates 0Âº56â€™6â€ - 1Âº0â€™10.8â€ N dan 122Âº5â€™56.4â€ - 122Âº9â€™10.8â€ E, the area of the study is around 45 kmÂ². The method used in the research is scientific exploration by conducting a surface geological mapping survey. The geological surface in the form of field data collection and laboratory analysis. Field data in the form of lithology data and laboratory analysis in the form of petrology and petrographic analysis. The stratigraphy of the research area is divided into 4 (four) unofficial units, which are sorted from old to young, namely granodiorite units of Middle Miocene age, volcanic breccia units of Late Miocene to Early Pliocene, andesite units of Middle Pliocene and alluvial units of Holocene age.Stratigraphic analysis of the Limbato area is related to geological history. In the Middle Miocene period subduction formed plutonic rocks that produced granodiorite units, then during the Late Miocene volcanic eruptions resulted in volcanic breccia units. The activity was stopped at the time of the Early Pliocene. After the volcanic activity was stopped, then new magma activity occurred at the time of the Middle Pliocene resulting in an andesite unit. After all rock units have been deposited, an erosion process occurs in older units which results in an alluvial unit.
ASESMEN NILAI-NILAI PARIWISATA TERHADAP FITUR GEOLOGI DAERAH BONGO DAN SEKITARNYA SEBAGAI DASAR PENGEMBANGAN GEOWISATA DI PESISIR SELATAN GORONTALO
Authors: Septian Yasin , Ndangi Wa Ode Emiria Srikandi , Manyoe Intan Noviantari , Taslim Ivan , Umar Emi Prasetyawati , Salama Tedy Harianto , Napu Siti Suhartini
Published: July 2023

Geology is an important aspect in the development of tourism in an area. One of the attractions in a natural tourism location is certainly highly controlled by the geological setting in the area. The purpose of this research is to assess tourism values of geological features in the Bongo and surrounding areas as a basis for developing geotourism on the southern coast of Gorontalo. The research location is at coordinates N 00029â€™42â€ - N 00029â€™51â€ and E 12301â€™26â€ - E 12303â€™32â€. The method used in this study is a surface geological survey, which includes field data collection in the form of lithology, geological structure and geomorphology. The standard used for assessing tourism values is the technical guide for assessing geological heritage resources by the Geological Survey Center. The results showed that the lithology unit of the study area consists of granite, volcanic breccia and reef limestone. The geological structure in the research area is shear fracture with main stress that relatively directed to northwest-southeast. The geomorphic unit of the study area consisted of two units, namely volcanic hills, and marine units. The results of the assessment of tourism values on geological features explain that the Bongo and surrounding areas are included in the medium category. Improvements are needed on low value criteria, namely vulnerability, relationships with other values, and economic level.
The Impact of Ethical Leadership on Employee Creativity: Moderated Mediation Role of Knowledge Sharing Behavior and Creative Self Efficacy
Authors: BOZDOĞAN Süleyman Cem , AKSOY Alptuğ
Published: July 2023

The effect of ethical leadership on worker creativity was evaluated utilizing knowledge sharing and creative self-efficacy. The relationships between these variables were analyzed in line with the theory of social learning and social exchange theory. Although there are studies on the mediating role of knowledge sharing behavior in the impact of ethical leadership on employee creativity, no study has analyzed the moderator role of creative self-efficacy in this relationship. With this study, it is aimed to contribute to the literature. Using the moderated mediation model, hypotheses were tested on a sample of 280 employees from various private sector enterprises. Findings revealed that ethical leadership has a positive impact on employee creativity, knowledge sharing behavior mediates this relationship, and creative self-efficacy moderates this relationship. In addition, research has shown that ethical leadership has a positive impact on knowledge sharing, which in turn has a positive impact on employee creativity. The limitations of the study are that there are only 280 employees in the sample, and as a result of collecting the data in a short time, it is possible that the variables are not enough to describe the process of dynamic interaction with each other.
Enstrüman Çalan ve Çalmayan Ortaokul Öğrencilerinin Dinlediğini Anlamalarının Karşılaştırılması
Authors: DAĞLI ŞAHİN Leylahan , BABAYIGIT Ozgur
Published: July 2023

Bu araştırmada enstrüman çalan ve çalmayan ortaokul öğrencilerinin dinlediğini anlamalarının karşılaştırılması amaçlanmaktadır. Çalışma, nicel araştırma yöntemlerinin biri olan ilişkisel tarama deseni ile gerçekleştirilmiştir. Araştırmanın evrenini 2021-2022 eğitim-öğretim yılında Yozgat ilinin Aydıncık ilçesindeki ortaokul öğrencileri oluşturmaktadır. Araştırmanın örneklemini ise basit seçkisiz örneklem yöntemi ile tespit edilen 320 ortaokul öğrencisi oluşturmaktadır. Araştırmada veri toplama aracı olarak, öğrencilerin dinlediklerini anlamalarının tespiti için bir adet dinleme metni ve 12 dinlediğini anlama testi kullanılmıştır. Verilerin analizinde SPSS programı kullanılmıştır. Araştırma sonucunda ortaokul öğrencilerinin %68’inin herhangi bir enstrüman çalmadığı, %32’sinin enstrüman çaldığı tespit edilmiştir. Ortaokul öğrencilerinin dinlediğini anlama başarısının 100 üzerinden 57 puan olduğu belirlenmiştir. 57 puanın orta seviyede bir puan olduğu düşünülmektedir. Enstrüman çalmayan ortaokul öğrencilerinin dinlediğini anlama başarı testi puan ortalaması yüz üzerinden 49 puandır. Enstrüman çalan ortaokul öğrencilerinin dinlediğini anlama başarı testi puan ortalaması yüz üzerinden 73 puandır. Enstrüman çalan ortaokul öğrencilerinin, enstrüman çalmayan ortaokul öğrencilerinden dinlediğini anlama puanının yüz üzerinden 24 puan fazla olduğu tespit edilmiştir. Başka bir ifadeyle, enstrüman çalan ortaokul öğrencilerinin, enstrüman çalmayan ortaokul öğrencilerinden dinlediğini anlama puanı %49 daha yüksektir. Enstrüman çalan ortaokul öğrencilerinin dinlediğini anlama başarı puanı, enstrüman çalmayan ortaokul öğrencilerinin dinlediğini anlama başarı puanına göre anlamlı bir farklılık göstermektedir, t(318)=12.08, p
Historiography of relations between the soviet government and the local population in the territory of Northern Bukovyna and Khotyn region in 1940-1947
Authors: Bestanchuk Yana
Published: July 2023

The article provides a comprehensive analysis of the historiography of the topic of relations between Soviet authorities and local population, the instruction of Sovietization processes in the territory of Northern Bukovyna and Khotyn region during 1940-1947.The study of relationship between Soviet authorities and local population is quite unexplored and requires further scientific study. There was no comprehensive study. In the scientific literature, this issue is highlighted in the form of a diverse thematic spectrum and concerns current political, economic, household and educational and cultural issues. During the last decades, depending on socio-political conditions and the available base of historical sources, the approach to the coverage of the mentioned issues has changed.The conclusion emphasizes that modern Ukrainian historiography, relying on a much wider source base, examines in more depth certain aspects the life of population in the territory of Chernivtsi region.Soviet historiography in Ukraine was strongly influenced by communist ideology and censorship, which had a significant impact on the study of the history of Bukovyna. The problems and achievements of Soviet industrial construction, the collectivization of agriculture, and the development of industry and transport infrastructure were studied. Special attention was paid to Soviet land reform policies and national policy regarding Bukovyna national minorities.Researchers are forced to work within the approved historical concept and maintain a positive image of Soviet government. This approach significantly limited the possibility of conducting objective research and analysis of the history of Bukovyna in the specified period.Foreign historiography of the history of Bukovyna was aimed at a detailed study of the events and processes of that time, in particular in the context of national issues using available sources and archival materials.Ukrainian historiography of the history of Bukovyna sought to understand and analyze the complex events of that time, focusing on the political, socio-economic and cultural aspects of life in Bukovyna, as well as on the role of Ukrainian population in the struggle for freedom and national independence.Thus, during the half-century period of studying the problems of the entry of Northern Bukovyna territory into the USSR, the interaction of local population and the Soviet authorities, the literature is not sufficiently systematized and does not cover the problems as a whole, a lot of works have a limited source base, because access to information on this topic was provided only at the end of the 20th century.
Researcher of the civilization of the ancient slavs
Authors: Pyvovarov Serhii , Kalinichenko Vitalii
Published: July 2023

The article is dedicated to the anniversary of Liubomyr Pavlovych Mykhailyna – a world-renowned researcher, Ukrainian archaeologist, doctor of historical sciences, leading researcher of the National Preserve «Kyiv-Pechersk Lavra», local-lore historian, historian, a connoisseur of monuments, as well as a tireless searcher of Slavic antiquities. The scientist is known to the general public for numerous archaeological discoveries, studies of the Khotyn fortress, restoration works and Ukrainian studies at the Kyiv-Pechersk Lavra.The scientific work of Liubomyr Pavlovych Mykhailyna was analyzed. Attention was focused on innovative research on issues of Slavic archaeology summarized in individual and collective monographs «Population of the Upper Popruttia of the 8th-10th Centuries» (1997), «Bukovyna. Historical Essay» (1998), «Slavs of the 8th-10th Centuries between the Dnieper and the Carpathians» (2007), «Essays on the History of the Khotyn fortress. Facts, Legends, Hypotheses» (2011), «The Archaeologist Who Became a Legend» (2019).During the years of work, Liubomyr Mykhailyna trained thousands of first-class history teachers, for many of whom archaeology and local-lore history became not only a passion for the whole life, but also determined their future scientific destiny. He established cooperation with local history teachers, which made it possible to protect effectively archaeological antiquities on the territory of Bukovyna from damage and destruction. A number of young scientists received a ticket to great science from the light hand of the scientist; in particular, researchers of archaeological antiquities Bohdan Ridush, Yuliia Mysko and Maryna Yagodynska successfully defended their PhD theses under his guidance.Currently, Liubomyr Mykhailyna has several individual and collective monographs, more than two hundred scientific articles, reports, and reviews. We wish Liubomyr Pavlovych Mykhailyna good health, many years and new scientific achievements and the realization of all plans.
A trap for hetmanych: the suceavian campaign of T. Khmelnytskyi (1653)
Authors: Chuchko Mykhailo
Published: July 2023

The article deals with the problems of difficult relations between the Moldavian prince Vasile Lupu and the Zaporozhzhia Army after the start of the War of Liberation in Ukraine under the leadership of Hetman B. Khmelnytskyi against Polish domination.The conclusion of a forced alliance, sealed in 1652 by the marriage of Vasile Lupu’s daughter Ruksandra and B. Khmelnytskyi’s son Tymofii, later led to a political crisis within the principality and confrontation with the rulers of neighboring Wallachia and Transylvania in the international arena. Due to the rebellion of the discontented boyars, led by the great logothete Gheorghe Ștefan, who were supported by the prince of Wallachia Matei Basarab and the prince of Transylvania George II Rákóczi, in the spring of 1653 Vasile Lupu briefly lost power, but soon returned the throne with the help of the Cossacks of hetmanych T. Khmelnytskyi. However, the attempt of the prince of Moldavia to use the armed forces of his son-in-law for a joint campaign to seize the possessions of his rival Matei Basarab ended with the defeat of the Moldavian-Cossack army at Finta in Wallachia and the coming to power in Moldavia of Gheorghe Ștefan, who occupied Iasi and blocked the Suceava fortress, where Vasile Lupu’s wife closed herself. T. Khmelnytskyi again arrived at the head of the Cossack army to help the besieged in Moldova. His appearance near Suceava in August 1653 led to the ruin of this territory. Having made his way to the besieged and having organized a fortified camp with the Cossacks on the floor side of the fortress, the hetmanych found himself in a trap, being finally blocked upon the arrival in Suceava of the fresh forces of voivode Gheorghe Ștefan with contingents of Transylvanians, Wallachians and Poles. The Cossacks, besieged under the castle, were actively defending in the hope of helping the main forces of Hetman B. Khmelnytskyi, and also waiting for the Tatars recruited by Vasile Lupu. However, help did not arrive in time, and hunger, attacks, shelling and the death of T. Khmelnytskyi from a wound forced the Cossack garrison in early October to capitulate with honour to the allied forces, on the terms of free departure to Ukraine with the body of hetmanych.In general, the defence of Suceava in 1653 became the final episode of the Moldavian campaigns of Bohdan and Tymofii Khmelnytskyi (1650, 1653). After the death of his son and the surrender of Suceava, B. Khmelnytskyi lost interest in affairs in the Danube principalities and orientation towards Portа, placing further hopes in the fight against the Commonwealth on Moscow. The Hetman’s matchmaker, the former prince Vasile Lupu, having lost all hope of regaining the throne of Moldavia, ended up in a foreign land, being imprisoned in Istanbul, and the principality of Moldavia, which he involved in an alliance with the Cossacks, remained in the future a territory of military activity of neighbours, experiencing ruin.
Greek Religion in Tauric Chersonesos
Authors: Tetiana Shevchenko
Published: July 2023

Tauric Chersonesos was one of the prominent ancient Greek centres on the north coast of the Black Sea. Founded by the Herakleians, with a small group of Delians, Chersonesos was the only Dorian city in the region. This is reflected in many events and phenomena from its history and culture; it is especially apparent in its religion, related to all aspects of the private and public lives of the population.

Depending on their differing historic development, each polis obtained its own peculiar ideological situation which influenced not only public religious life, but also the religious outlook of each separate family or individual. The worship of the gods within the pantheon of the polis was a key factor in the community’s consolidation, while the beliefs surrounding these deities formed a significant role in the concrete events of civic life.

This comprehensive study of the cults of the gods of the Chersonesan polis, firmly based on the available sources (written, epigraphic, images of gods and their iconography on coins and in sculpture, as well as archaeological remains of cult structures), sheds new light on the religious life of this ancient Greek centre at various stages in its development.
ФАКТОРИ ЕФЕКТИВНОГО ДЕРЖАВНО-ПРИВАТНОГО ТА СОЦІАЛЬНОГО ПАРТНЕРСТВА В ОСВІТІ
Authors: Охременко Сергій
Published: July 2023

The article raises the issue of regulatory stimulation of entrepreneurs to effectively interact with vocational education institutions on the basis of public-private and social partnership through the adoption of the laws "On fairness at work" and "On self-regulatory organizations", which will create prerequisites for the development and implementation of standards of professional activity and professional standards as tools for measuring and stimulating the effectiveness of education and work of all employees, enterprises and educational institutions.
Effect of HYP fibers on bulk and surface roughness of wood-free paper
Authors: GAO YANG , RAJBHANDARI VIVEK , LI KECHENG , ZHOU YAJUN , YUAN ZHIRUN
Published: July 2023

Two typical high-yield pulps (HYPs) used in wood-free paper grades, aspen HYP and birch HYP, were investigated for their effects on the bulk and surface roughness when substituting for hardwood kraft pulp in wood-free fine paper production. Results show that paper bulk, bending stiffness, and opacity can be improved significantly by both aspen and birch HYPs. Birch HYP has greater effects since birch fibers are larger and have higher coarseness. However, increasing HYP substitution rate increases paper surface roughness and decreases paper strength. Selection of HYP species and substitution rate should be made based on the needs of a specific paper grade.
Application of imaging reflectometry to studies of print mottle on commercially printed coated papers
Authors: PRESTON JANET , HIORNS ANTHONY GORDON , ELTON NICK , STROM GORAN
Published: July 2023

It has been well documented that homogeneous coating structures are necessary for obtaining good, mottle-free printed papers. Methods such as mercury intrusion porosimetry are widely used in the paper industry, but will deliver a bulk porosity measure, which contains contributions from both the surface layers and the bulk of the coating. One way of assessing the surface porosity is to measure its effective refractive index (RI) because the RI measured is a combination of the material RI and air.
In this work three papers coated with PCC, kaolin, and GCC were RI mapped using an imaging reflectometer. The data were then treated with a mathematical transform in order to be able to quantify the degree of variation that was taking place at each length scale. These results were then compared to the print mottle, which was evident after both lab scale printing and full scale sheetfed printing of the pilot coated papers.
The commercial mottle was quantified both visually and using image analysis and there was a reasonable correlation between these two methods. In the halftone printed area, the propensity for mottle correlated with the degree of porosity variation of the coating. However, the rankings for the full tone print areas better correlated with the short time water absorbency of the coatings. FFT band-pass analysis confirmed that the same spatial distribution of unevenness occurred in the basepaper, coating layer and printed areas.
Optimization of ECF bleaching of kraft pulp: Part 1. Optimal bleaching of hardwood pulps made with different alkali charges
Authors: MCDONOUGH THOMAS J. , UNO SHUNICHIRO , RUDIE ALAN W. , COURCHENE CHARLES E.
Published: July 2023

In an earlier modeling study, we showed that when a hardwood kraft pulp is bleached in the D0(EO)D1ED2 sequence with a D0 stage kappa factor of 0.20, the brightness of the pulp emerging from the D2 stage can be accurately predicted from the brightness of the pulp entering that stage. The entering brightness, in turn, is a well-defined function of the ratio of the D1 stage ClO2 charge to the (EO) stage kappa number. In the present study, we use the results of pulping and bleaching experiments on southern U.S. red oak chips to extend the model to account for the effect of changing the D0 kappa factor and use it to assess the effect of digester alkali charge on pulp bleachability. We also show how this approach can be used to minimize the total ClO2 requirement for any desired final brightness and to optimize the allocation of ClO2 to the three D stages of the D(EO)DED sequence or the two D stages of the D(EO)D sequence. Among the conclusions resulting from application of the model are that the combination of high effective alkali and high D0 kappa factor gives pulp with a higher final brightness ceiling than any other combination, but that for brightness targets of 91 or lower, the combination of low effective alkali and low kappa fac-tor is the most economical.
Heat integration opportunities in an average Scandinavian fine paper mill: model study and comparison with a market pulp mill
Authors: AXELSSON ERIK , BERNTSSON THORE
Published: July 2023

The pulp and paper industry has a potential for significant energy savings, as shown by many studies on both market pulp mills and integrated pulp and paper mills. In this study, we compare the opportunities for energy savings through heat integration in the two mill types. To do this systematically, we used model mills with an identical pulp mill connected to either a pulp dryer or to two paper machines. An energy analysis of the integrated mill showed that there are steam-saving opportunities of about 16%, which enable increased electricity production or fuel savings in the form of reduced bark burning. For electricity production, the break-even electricity price was 25–50 €/MWh depending on economic conditions. For fuel savings, the break-even bark price was 5–11 €/MWh depending on economic conditions and electricity price (the electricity production decreased when fuel was saved). When comparing the integrated pulp mill with the market pulp mill, the authors identified inherent differences that influenced the steam-saving opportunities in favor of the market pulp mill, implying a payback period about 0.4 years longer in the case of electricity production in the integrated mill. In the case of fuel savings, however, the integrated mill would have significantly better profitability, because fuel savings in the market pulp mill had to be in the form of lignin extraction from the black liquor, which would entail additional investment and operating costs.
Investigation of filtercake stability using numerical simulation technique
Authors: SAND ANDERS , TOIVAKKA MARTTI , HJELT TUOMO
Published: July 2023

The stability of a paper coating filtercake and the influence of Brownian motion relative to absorption flow can be described using a particle dynamics model. For such a study, we assumed that the stability of a filtercake depends on the interrelation between particle diffusion and the hydrodynamic drag force caused by the absorption flow of liquid. We simulated particle diffusion using a Brownian motion model. Our investigation included monodisperse and polydisperse particle systems of electrostatically stabilized rigid spheres. We also varied system temperatures in some of the simulations. Results characterize the stability, microstructure, density profiles, and thicknesses of the filtercake. We concluded that particle diffusion disrupted the filtercake if the size of the particles was small or the temperature high. For dewatering rates typical of paper coating processes, the simulations show that only particles less than 0.2 µm are able to diffuse sufficiently to result in a solids density gradient over the thick-ness of the filtercake. In the polydisperse system, small particles can migrate within the filtercake at low dewatering rates. The solids concentration gradient observed in some cases appeared to be the result of filtercake surface roughness, partly caused by a size segregation effect rather than of the proposed thickening mechanism.
Developing a new paradigm for linerboard fillers
Authors: ZHAO YULIN , KIM DONGHO , WHITE DAVID , DENG YULIN , PATTERSON TIMOTHY , JONES PHIL , TURNER EDDY , RAGAUSKAS ARTHUR
Published: July 2023

The goal of this research is to develop practical, cost-effective bonding clay fillers that improve existing sheet properties while decreasing overall materials cost. This work represents a paradigm change in filler use in linerboard and other grades. The innovative starch-coated filler technology allows at least 5%-10% filler content for lightweight and board grades, providing needed optical properties without detrimentally affecting physical strength of papers. This offers a low-cost approach to significantly increasing sheet filler levels, leading to higher strength and potentially improved printability. Results, including pilot trials, demonstrated significant improvement in the bonding and bulking capabilities of modified clays coated with starch. The pilot data also indicated potential for increased dewatering as filler content is increased, which can lead to higher production for dyer limited liner-board mills.
A diffractive gloss meter for local gloss measurements of papers and prints
Authors: JUUTI MIKKO , KOIVULA HANNA , TOIVAKKA MARTTI , PEIPONEN KAI-ERIK
Published: July 2023

Specular gloss is widely used in the paper industry to assess surface quality. Although specular gloss is defined as the ratio of light fluxes from the inspected surface and a reference surface, the measurement of minute changes in local gloss has not been presented in international standards due to the lack of suitable gloss meters. Our studies of local and average gloss from papers and prints using a highly sensitive diffractive gloss meter (DOG) yielded information on local and global gloss that can help papermakers in the research and development of optimal paper surface quality, which is crucial in obtaining optimal print quality.
Social Capital of Impoverished Students: A Study on the Strength of Social Networks, Trust, and Norms among Impoverished Students
Authors: Martono Nanang , Puspitasari Elis , Lisnawati Lisnawati
Published: July 2023

This study examines the social capital of impoverished students who possess limited economic resources. To thrive in school, these students heavily rely on strong social capital. Social capital is crucial for impoverished students as it enables them to interact effectively with teachers and peers. The study was conducted in four high schools located in Temanggung, Cilacap, Purbalingga, and Kebumen Regencies, Central Java Province, Indonesia. The study respondents were students from impoverished families, selected through a simple random sampling method, comprising 30% of the impoverished students in those schools. The findings revealed that a significant majority of the respondents exhibited high social capital. This was evidenced by the extent of their social networks, which encompassed close relationships with peers from both their own and other schools. Consequently, they felt accepted and integrated within their social groups. Furthermore, these students adhered to prevailing social norms within their school and peer circles, further facilitating their acceptance. Impoverished students also managed to gain the trust of both their friends and teachers. This was exemplified by their frequent involvement in assisting classmates with school assignments. However, despite possessing these positive social attributes, they were rarely allowed to hold specific positions within the class or organizational structures. Additionally, they were seldom selected to represent the school in various competitions.
PERTUMBUHAN KULTUR MERISTEM MAHKOTA NANAS (Ananas comosus (L.) Merr) PADA MEDIA MURASHIGE SKOOG (MS) DENGAN PENAMBAHAN EKSTRAK JAGUNG (Zea mays (L.) DAN Naphthalene Acetic Acid (NAA)
Authors: Desy Desy , Mukarlina  , Elvi Rusmiyanto
Published: July 2023

Nanas (Ananas comosus (L.) Merr.) merupakan salah satu jenis buah-buahan holtikultura yang berpotensi untuk dibudidayakan dan memiliki nilai ekonomi baik di Kalimantan Barat. Perbanyakan tanaman nanas dapat dilakukan secara in vitro melalui kultur meristem mahkota nanas dengan menumbuhkan eksplan pada media Murashige Skoog dengan penambahan ekstrak biji jagung dan Naphthalene Acetic Acid (NAA). Tujuan penelitian adalah untuk mengetahui pengaruh ekstrak biji jagung dan NAA terhadap pertumbuhan kultur meristem mahkota nanas. Penelitian dilaksanakan bulan September 2019 hingga April 2020 di Laboratorium Kultur Jaringan Jurusan Biologi FMIPA Universitas Tanjungpura. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan dua faktor. Faktor pertama ekstrak biji jagung konsentrasi 0% (J1), 10% (J2), dan 15% (J3) ; faktor kedua NAA konsentrasi  0M (N1), 5x10-8 M (N2), dan 10-7 M (N3) . Masing-masing perlakuan diulang 3 kali sehingga diperoleh 27 unit percobaan. Hasil penelitian menunjukkan bahwa kombinasi NAA dan ekstrak biji jagung berpengaruh nyata terhadap waktu muncul tunas (hari), jumlah tunas (tunas), jumlah daun (helai) dan tinggi planlet (cm). Perlakuan 10-7 M NAA+15% ekstrak biji jagung (N1J2) menghasilkan pertumbuhan terbaik dengan waktu muncul tunas 8,6 hari dan jumlah tunas 7 buah tunas.
JENIS-JENIS TUMBUHAN PAKU TERESTRIAL (Pteridophyta) DI KAWASAN UNIVERSITAS TANJUNGPURA PONTIANAK KALIMANTAN BARAT
Authors: Isa Dolia , Turnip Masnur , Linda Riza
Published: July 2023

Tumbuhan paku teresterial merupakan kelompok tumbuhan yang memiliki peranan penting dalam ekosistem di Kawasan Universitas Tanjungpura. Penelitian ini bertujuan untuk mengetahui jenis-jenis tumbuhan paku teresterial di kawasan Universitas Tanjungpura, Pontianak. Penelitian dilakukan dari bulan April hingga Juni 2021. Metode yang digunakan dalam pengambilan sampel adalah metode jelajah. Hasil yang diperoleh menunjukan bahwa terdapat 12 jenis tumbuhan paku terestrial dari kelas Polypodiopsida yang terbagi 9 famili yaitu Aspleniaceae, Athyriaceae, Blechnaceae, Denstaedtiaceae, Lindsaeaceae, Nephrolepidaceae, Tectariaceae, Lygodiaceae, dan Selaginellaceae. Spesies yang paling banyak ditemukan adalah anggota genus Nephrolepis, yaitu; Nephrolepis biserrata, Nephrolepis cordifolia, dan Nephrolepis exaltata.
Bagaimana Persepsi Mahasiswa terhadap Pergeseran Pola Pembelajaran setelah Pandemi COVID-19?
Authors: Rizal Khairul , Utami Tri Putri , Aswadi Khairul
Published: July 2023

Munculnya wabah pandemi COVID-19 pada akhir tahun 2019 yang bermula dari kota Wuhan, Provinsi Hubei di Cina, kemudian virus jenis baru ini telah menyebar ke berbagai belahan negara di dunia, termasuk di Indonesia. Virus ini berpengaruh terhadap berbagai sektor kehidupan manusia, salah satunya dampaknya ke sektor pendidikan. Sistem pembelajaran yang biasanya dilakukan dengan sistem konvensional atau tatap muka, untuk saat ini digantikan dengan sistem pembelajaran daring. Tujuan dari penelitian ini adalah untuk mengidentifikasi efektivitas pembelajaran daring pasca pandemi covid-19 pada perguruan tinggi di Provinsi Aceh. Metode yang digunakan dalam pengolahan data adalah metode kuantitatif. Hasil penelitian berdasarkan uji regresi logistik menunjukkan bahwa terdapat interaksi yang kurang kuat antara usia dan kepuasan belajar mahasiswa selama COVID-19. Uji goodness of fit menggunakan model McFadden menunjukkan nilai 0.08 dan nilai p<0.033 menegaskan bahwa model yang diusulkan tidak berbeda secara kritis dari model sempurna yang mengklasifikasikan responden dengan benar ke dalam pengelompokannya masing-masing. Signifikansi koefisien regresi statistik Wald menunjukkan hasil yang sama. Dimana, hanya prediktor jenis kelamin yang memiliki koefisien negatif yang signifikan. Hasil ini menjelaskan bahwa prediktor jenis kelamin berpengaruh signifikan dan negatif terhadap kepuasan belajar mahasiswa. Ini artinya secara umum mahasiswa laki-laki tidak puas terhadap pembelajaran selama COVID-19.
Validitas Ensiklopedia Famili Rutaceae di Kebun Raya Banua
Authors: Masrurah Elva , Kaspul Kaspul , Zaini Muhammad
Published: July 2023

Pendidikan adalah upaya untuk mengembangkan kemampuan dan karakter individu melalui berbagai proses seperti bimbingan, pengajaran, pelatihan, dan interaksi dengan lingkungan. Pembelajaran abad ke-21 menekankan pada pembelajaran dengan pendekatan lingkungan yang berkaitan dengan frasa berpikir global dan bertindak loka melalui pengembangkan ensiklopedia di Kebun Raya Banua. Ensiklopedia adalah salah satu jenis sumber belajar yang memuat uraian berisi pengetahuan yang disusun sesuai abjad (alfabetis) atau menurut lingkungan ilmu dengan mengkolaborasikan teks dan gambar. Penelitian ini bertujuan untuk memvalidasi ensiklopedia famili rutaceae di Kebun Raya Banua. Metode penelitian yang digunakan yaitu metode EDR (Educational Design Research) dengan desain evaluasi formatif Tessmer. Aspek yang divalidasi mencakup koherensi, keterbacaan, kosa kata yang berlebihan, kalimat aktif dan pasif, melindungi nilai, aplikasi dan implikasi, serta gaya lain perangkat. Subjek uji pakar (validator) ensiklopedia adalah tiga orang dosen program studi pendidikan biologi Universitas Lambung Mangkurat. Objek penelitian ini yaitu ensiklopedia famili rutaceae. Hasil dari penelitian menunjukkan validitas dikategorikan baik. Hal ini menunjukkan bahwa ensiklopedia famili rutaceae di Kebun Raya Banua dikategorikan layak (valid).
Keefektifan Ensiklopedia Famili Myrtaceae Koleksi Kebun Raya Banua untuk Melatihkan Keterampilan Berpikir Kritis Mahasiswa
Authors: Adawiyah Rabiatul , Zaini Muhammad , Kaspul Kaspul
Published: July 2023

Perkembangan abad ke-21 dalam bidang pendidikan mengupayakan mahasiswa untuk dapat berpikir kritis serta sadar akan kondisi lingkungan. Frasa Think globally, act locally merupakan kalimat yang berkaitan dengan kesadaran akan kondisi lingkungan. Bentuk nyata dari frasa think globally (berpikir global) adalah mengembangkan sebuah produk berupa ensiklopedia yang memuat tentang informasi seputar biologi, sedangkan bentuk nyata dari frasa act locally (bertindak lokal) berupa penelitian yang dilakukan. Ensiklopedia adalah kumpulan informasi yang komprehensif tentang morfologi tumbuhan famili myrtaceae koleksi Kebun Raya Banua. Tujuan penelitian ini berkaitan dengan mendeskripsikan keefektifan ensiklopedia dalam melatihkan keterampilan berpikir kritis mahasiswa. Model penelitian pengembangan untuk memperbaiki dan meningkatkan produk sebelumnya. Penelitian pengembangan menggunakan desain evaluasi formatif Tessmer. Uji perorangan (one to one evaluation), dan uji kelompok kecil (small group evaluation). Subjek uji perorangan (one to one evaluation) adalah tiga orang mahasiswa yang sudah menempuh mata kuliah morfologi tumbuhan berkaitan dengan data kepraktisan isi, subjek uji kelompok kecil (small group evaluation) adalah empat orang mahasiswa yang sudah menempuh mata kuliah morfologi tumbuhan yang berkaitan dengan data kepraktisan dan keefektifan harapan. Hasil dari penelitian pengembangan menunjukkan ensiklopedia efektif dalam melatihkan keterampilan berpikir kritis mahasiswa.
JENIS PTERIDOPHYTA YANG TERDAPAT DI KAWASAN WISATA BRAYEUN KECAMATAN LEUPUNG KABUPATEN ACEH BESAR
Authors: Fauziah Asyifa , Hasanuddin Hasanuddin , Andayani Dewi , Nurmaliah Cut , Wardiah Wardiah
Published: July 2023

Penelitian ini bertujuan untuk mengetahui jenis dan jumlah pteridophyta, jenis pteridophyta epifit dan teresterial serta jenis pteridophyta dimorfisme yang terdapat di kawasan Wisata Brayeun. Penelitian dilaksanakan pada bulan Juni hingga Juli tahun 2021. Penelitian ini menggunakan metode survei eksploratif dengan teknik purposive sampling. Data dianalisis secara deskriptif. Hasil penelitian: (1) Terdapat 23 Jenis pteridophyta yang tergolong kedalam 13 familia (2) Pada Kawasan Wisata Brayeun ditemukan 15 jenis  pteridophyta yang hidup secara teresterial dan 6 jenis pteridophyta yang hidup secara epifit yaitu Drymoglossum piloselloides, Drynaria quercifolia, Microsorium fortunei, Pyrrosia lanceolata, Aspelium nidus dan Davalia trichomanoides (3) ditemukan 4 jenis pteridophyta dimorfisme yaitu Stenochlaena palustris, Pteris ensiformis, Drymoglossum piloselloides dan Drynaria quercifolia.
The PROFIL FITOKIMIA DAN AKTIVITAS ANTIOKSIDAN EKSTRAK AIR DAUN Tegetes erecta L
Authors: Fitrah Asma  Ulhusna
Published: July 2023

Tanaman Tegetes erecta L merupakan tumbuhan herba yang tumbuh di daerah tropis. Tujuan penelitian adalah untuk menganalisis senyawa bioaktif dan aktivitas antioksidan edari kstrak air daun T. erecta. Uji fitokimia dilakukan secara kualitatif. Aktivitas antioksidan dianalisis dengan metode DPPH. Hasil dari penelitian ini menunjukkan bahwa kandungan bioaktif pada ekstrak air daun T. erecta adalah alkaloid, saponin, tannin, flavonoid, steroid, dan polifenol tetapi negatif untuk kuinon dan triterpenoid. Ekstrak daun T. erecta dengan pelarut air memiliki aktivitas antioksidan sebesar 17.08 ppm. Kesimpulan dari penelitian adalah adalah ekstrak air daun T. erecta memiliki senyawa bioakatif berupa alkaloid, saponin, tannin, flavonoid, steroid, dan polifenol serta ekstrak air daun T. erecta memiliki aktivitas antioksidan yang sangat kuat yaitu 17.08 ppm.

Kata Kunci: antioksidan, ekstrak, fitokimia, Tagetes erecta L.
Keanekaragaman dan Identifikasi Morfometrik Jenis Ikan Hasil Tangkapan Nelayan di TPI Kuala Langsa
Authors: Febrianti Deliana , Harisandy Muhammad Dandi , Nadhira Cut Arfah , Syahputra Muhammad Rizky
Published: July 2023

Penentuan kisaran dan identifikasi spesies yang akurat merupakan bagian penting dari pengelolaan sumber daya perikanan dan harus dilakukan. Penelitian ini bertujuan untuk mendapatkan suatu informasi tentang berbagai jenis-jenis ikan apa saja yang merupakan hasil tangkapan nelayan dan identifikasi ikan dengan melihat nilai karakteristik morfometrik jenis ikan hasil tangkapan nelayan. Adapun pengukuran morfometrik ikan dilakukan dengan pengukuran 12 karakter yang diukur dengan menggunakan caliper pada ketelitian 0,05 mm. Berdasarkan hasil penelitian didapatkan informasi bahwa Sebanyak 19 jenis ikan yang terdiri dari 12 suku hasil tangkapan nelayan di TPI Kuala Langsa. Suku Scombridae, Carangidae, dan Clupeidae merupakan suku dengan jumlah jenis terbanyak. Faktor yang mempengaruhi jumlah hasil tangkapan ikan yaitu bulan terang, iklim, cuaca dan angin. Alat tangkap ikan yang digunakan yaitu jaring atau pukat yang terbuat dari nilon. Pada karakteristik morfometrik Ikan Layur (Trichiurus lepturus L) merupakan jenis ikan yang memiliki ukuran morfometrik terbesar di TPI Kuala Langsa dengan panjang totalnya 42,3 cm dan lebar badan 3,5 cm dan yang ukurannya paling kecil di TPI Kuala Langsa yaitu Ikan Tamban yang memiliki panjang total 8,7 cm dan lebarnya 1,2cm.
Pengembangan LKPD Berbasis Guided Inquiry pada Materi Sistem Pernapasan Manusia
Authors: Damanik Nurul Nazmi , Rasyidah  , Rambe Riris Nurkholidah
Published: July 2023

Dilaksanakannya suatu pembelajaran Guided Inquiry yaitu menuntun peserta didik untuk memperoleh pengetahuan melalui kegiatan pembelajaran mandiri, maka perlu adanya LKPD yang dapat mengarahkan peserta didik untuk mencari dan berusaha mendapatkan jawaban dari permasalahan  yang ada dalam pembelajaran. Metode penelitian yang digunakan adalah Research and Development (R&D). Model yang digunakan dalam mengembangkan produk pembelajaran adalah model ADDIE. Kepraktisan LKPD berbasis guided inquiry pada materi sistem pernapasan manusia mendapatkan tanggapan dari peserta didik dari kelas XI IPA-1  yaitu 81,79%  dengan keterangan “Sangat Praktis”,  untuk kelas XI IPA-2 mendapatkan tanggapan sebesar 87,30% dengan keterangan “Sangat Praktis”, selanjutnya validasi praktisi lapangan sebesar 94.8% yaitu dengan keterangan “Sangat Praktis” Terdapat perbedaan jumlah rata-rata skor gain ternormalisasi pada kelas XI IPA-1 dan IPA -2, rata-rata skor gain ternormalisasi kelas IPA-2 lebih tinggi dibandingkan dengan kelas XI IPA-1 dengan selisih skor 0,03, namun, diantara keduanya berada pada kategori “Efektif”.
Analisis Kuantitatif Logam Berat dalam Tiram (Crassostrea Sp.) dari Pesisir Kuala Langsa
Authors: Silalahi Novita Sari Lastiar , Amri Yulida , Wahyuningsih Puji
Published: July 2023

Tiram merupakan salah satu produk yang berasal dari daerah perairan yang dapat dikonsumsi karena mengandung banyak nutrisi. Hewan ini dapat hidup di daerah pasang surut air laut yang banyak ditumbuhi tumbuhan bakau. Namun biota ini memiliki sistem penyaring makanan (filter feeder) sehingga sangat rentan terhadap cemaran logam berat. Tiram yang tercemar akan berbahaya jika dikonsumsi. Logam berat seperti timbal (Pb) dapat saja tercemar ke perairan disebabkan oleh aktivitas perahu/kapal nelayan yang menggunakan bahan bakar dan limbah oli bekas yang mengandung cemaran timbal (Pb). Selain itu limbah oli bekas dan cat yang terbawa arus sungai ke perairan dapat mempengaruhi kandungan timbal (Pb) dalam tiram. Logam berat lain seperti merkuri (Hg) dapat berasal dari limbah produk rumah tangga seperti lampu neon, televisi, dan kosmetik tertentu. Sumber-sumber logam berat ini akan terbawa ke perairan dan diserap oleh tiram. Oleh karena itu pada penelitian ini akan dianalisis kandungan logam berat timbal (Pb) serta kandungan logam merkuri (Hg) dalam sampel tiram. Penelitian ini bertujuan untuk mendapatkan informasi mengenaicemaran logam berat dalam sampel tiram. Metode destruksi sampel yang digunakan adalah destruksi basah sedangkan analisis kuantitatif menggunakan metode spektrofometri serapan atom (SSA). Hasil analisis menunjukkan bahwa tiram telah tercemar logam timbal serta merkuri. Kandungan timbal (Pb) dalam sampel tiram adalah 2,128 mg/kg dan telah melewati ambang batas sesuai SNI 7387:2009. Sedangkan kandungan logam merkuri (Hg) yaitu 0,0539 mg/kg dan masih berada di bawah ambang batas SNI 7387:2009.
La futbolización del mundo
Authors: Ollier Fabien
Published: July 2023

El deporte globalizado constituye hoy un verdadero imperio planetario. Se extiende de manera tentacular sobre vastos sectores de la economía parasitaria visibles o subterráneos del capitalismo financiero, el poder político y la aturdidora industria cultural. La cínica ideología de la competición de todos contra todos, se ha impuesto en casi todas las instituciones de la vida cotidiana difundida de manera continua a través de la incansable repetición de rivalidades miméticas entre deportistas o equipos en las redes mediáticas transnacionales. Esto sucedió gracias a los engaños de los cárteles propagandísticos (COI, FIFA, UEFA, etc.) apoyados por las principales multinacionales capitalistas (Coca-Cola, McDonald's, Visa, Toyota, Samsung, Adidas, etc.) y los aparatos de Estado de todos los países (en particular, el aparato represivo militar-policial). En cuerpos como en mentes, en universos sociales o paisajes naturales, el deporte competitivo de espectadores ha colonizado espacios, fagocitado temporalidades, canibalizado recursos, estandarizado emociones.
Ruptured Fusiform Anterior Cerebral Artery Aneurysm in an Infant : Case Report and a Literature Review
Authors: Lee Wonseok , Rhim Jong-Kook , Joo Jin-Deok , Huh Ji Soon , Sim Ki-Bum , Chung You-Nam
Published: July 2023

Ruptured intracranial aneurysms in infants are rare and infantile fusiform anterior cerebral artery (ACA) aneurysms are much rarer. In this report, we described the case of a 7-month-old infant with a ruptured fusiform ACA aneurysm who presented with seizure and underwent endovascular treatment. The patient was initially in a coma and the neurologic condition did not improve after treatment. The clinical characteristics of the case and literature review were discussed.
Nitrofurantoin: properties and potential in treatment of urinary tract infection: a narrative review
Authors: Mahdizade Ari Marzie , Dashtbin Shirin , Ghasemi Fatemeh , Shahroodian Soheila , kiani Parisa , Bafandeh Elnaz , Darbandi Talieh , Ghanavati Roya , Darbandi Atieh
Published: July 2023

Nitrofurantoin (NF), a wide-spectrum antibiotic accessible since 1953, is utilized widely to treat urinary tract infections as it usually stays active against drug-resistant uropathogen. The use of Nitrofurantoin has increased exponentially since new guidelines have repositioned it as first-line therapy for uncomplicated lower urinary tract infection (UTI). To, although fluoroquinolones are usually used to re-evaluate the first- and second-line therapies for treating uncomplicated UTI, their level of utilization is thought to be inappropriately excessive and will eventually have a detrimental impact; thus, we hypothesize that NF might be the best choice for this condition, because of its low frequency of utilization and its high susceptibility in common UTI pathogens. It can be concluded from this review that NF can be considered as the most effective drug in the treatment of acute urinary infection, but due to the long-term side effects of this drug, especially in elderly patients, it is essential to introduce some criteria for prescribing NF in cases of chronic UTI.
The gut virome and the relevance of temperate phages in human health
Authors: Avellaneda-Franco Laura , Dahlman Sofia , Barr Jeremy J.
Published: July 2023

Alterations in the gut virome impact human health. Bacteriophages, viruses that infect bacteria, dominate the gut virome and are mainly composed by virulent and temperate phages. While virulent phages exclusively replicate within and lyse their bacterial host’s cell, temperate phages switch from an integrated state residing within their bacterial host’s chromosome to an induced free virion state via an induction event. How often do these induction events occur and what are their implications on gut homeostasis? Here, we summarize the current knowledge of the gut virome based on metagenomics and present how the proportion of induced temperate phages varies amongst individuals, age, and disease states. Finally, we highlight the importance of building upon classical culture-dependent techniques and sequencing approaches to improve our understanding of temperate phages to enable their potential therapeutic use.