bluuebunny/crossref_metadata_2025 huggingface dataset:
In-Situ Leaching Mining Technique for Deep Bauxite Extraction and the Countermeasures for Water Pollution Prevention: An Example in the Ordos Basin, China
Authors: Li Zhizhong , Zhang Yi , Luo Tengyue , Xia Peng , Mu Huayi , Sun Pingping , Wang Xin , Wang Jianhua
Published: June 2023

As the second most significant metal following steel, aluminum plays a vital role in the advancement of both strategic emerging industries and national economic development. The existing oil and gas drilling data indicate that the deep bauxite deposits is abundant around the Ordos Basin in China, at the depths ranging from several hundred meters to several kilometers. Based on the geological and hydrogeological characteristics analysis, it is found that deep bauxite deposits in the basin have distinct electrical characteristics, characterized by four highs and two lows. While there is scarcity of prior research on the exploration topic for the technique limitation. In this paper, a logging interpretation model has been developed, which allows the evaluation of bauxite deposits. An efficient technology was proposed for deep bauxite exploration, utilizing an in-situ leaching mining technique. This technology is well-suited to the geological conditions of the Ordos Basin, ensuring that the solution flows within the bauxite ore bed without any seepage loss. To prevent the leaching solution from seeping into and polluting the main aquifer around the basin, several measures have been proposed. These include filling with polymer resin, well pattern seepage control plugging, and establishing monitoring systems. The results of this study provide a theoretical basis for the adoption of environmentally sustainable mining techniques and the mitigation of water pollution in deep bauxite exploration.
Phosphorus Recovery from Sewage Sludge as Struvite
Authors: Cañas Javier , Álvarez-Torrellas Silvia , Hermana Blanca , García Juan
Published: June 2023

Environmental legislation on waste management coupled with the potential for nutrient recovery are key factors encouraging the use of advanced treatment technologies to manage biosolids waste. In this context, phosphorus recovery from sewage sludge treated by a wet oxidation (WO) process was carried out in this work. High organic matter (up to 85% in COD) and total solids content (up to 75%) removal values were achieved by the WO process at elevated temperature (up to 300 °C) and pressure (up to 200 bar) conditions. The liquid and solid fractions found in the oxidation process effluent contain high amounts of phosphorus that can be recovered. This research aims to maximize its recovery in both liquid and solid fractions. In the liquid effluent, phosphorus was recovered (up to 90 mg P/L) by chemical precipitation as struvite (MgNH4PO4∙6 H2O), a slow-release fertilizer. In this case, P recoveries greater than 95% were achieved. Additionally, the solid fraction, analyzed after filtration and drying (68 mg P/gsolid), was treated by acid leaching, obtaining up to 60% phosphorus recovery. All phosphorus extracted was in orthophosphate form.
Effect of Anthropogenic Pressure on the Biodiversity of Benthic Macroinvertebrates in Some Urban Rivers (Yaoundé)
Authors: Zemo Marie Anita Temgoua , Menbohan Samuel Foto , Atchrimi Bernard Tossou , Betsi Wilfreid Christiane Noel , Nwaha Mathias , Dzavi Jean , Mavunda Célestin Adeito , Lactio Nathaniel
Published: June 2023

In Cameroon, the environmental profile is increasingly marked by anarchic urbanisation, which is strongly illustrated by the discharge of waste into the aquatic environment, leading to pollution. Indeed, the tributaries of the Mfoundi and Mefou river basins have nowadays become dumping grounds and receptacles for all kinds of waste, leading to the degradation of water quality and a reduction in biodiversity. This study aims to evaluate the effect of anthropogenic pressure on the biodiversity of benthic macroinvertebrates in three rivers of the Mfoundi basin (Ebogo, Abiergue, and Ako’o). For this purpose, some physicochemical parameters were measured according to standard methods, and benthic macroinvertebrates were collected according to the multihabitat approach. To this end, the physicochemical analyses revealed that the waters of these different streams are slightly basic and poorly oxygenated, with a saturation rate of 9.725 ± 11.74% and significant organic pollution. Biologically, a total of 5793 benthic macroinvertebrates divided into three phyla, eight orders, and more than thirty families were collected, with a population dominated by the order of insects and a low level of diversity dominated by pollutant organisms such as the Chironomidae, Lumbriculidae, and Physidae, which are saprobionts and saprophilous organisms. A redundancy analysis indicated that the main groups of benthic macroinvertebrates obtained were related to the gradients of the physicochemical parameters measured. The Shannon–Weaver diversity and Piélou equitability indexes showed the low diversity of the organisms within the different courses and their low equipartition, mainly due to the saprobiont and saprophilous groups that dominate the population. The exogenous inputs due to the increase in the population of the city of Yaoundé, which dumps its waste into the waterways, have major repercussions on the quality of the water and the population that abounds in this environment, particularly the benthic macroinvertebrates, which are an important link in the monitoring of water quality.
A Critical Review of Water Reuse: Lessons from Prehistoric Greece for Present and Future Challenges
Authors: Angelakis Andreas N. , Tzanakakis Vasileios A. , Capodaglio Andrea G. , Dercas Nicholas
Published: June 2023

Wastewater treatment and reuse has passed through different development stages with time. This study reviews the most essential changes in water reclamation and reuses over millennia, focusing on initial approaches in the Hellenic world and discussing the current situation. Based on archeological evidence and time records, the awareness of the Greeks regarding land disposal, irrigation, and water reuse is highlighted. The latter has evolved into a plethora of applications, with Direct Potable Reuse (DPR) representing one of the last modern frontiers. Currently, advances in wastewater treatment and the spreading of wastewater treatment plants producing large amounts of treated effluents increase the potential for water reuse. This is regarded as a critical option for the continuing protection of water resources and human health, while concurrently satisfying water demand, particularly in areas subject to increased water scarcity. The main constraints in the expansion of water reuse practices are discussed, focusing on wastewater treatment efficiency and quality effluent standards issues, as well as on the lack of motivations related to the acceptability of this practice by final users. Against these challenges, the need for a transition from an “issue-by-issue” approach to a broader integrated water management framework is highlighted.
Correction: Agostinho et al. Enhanced Oxygen Volumetric Mass Transfer in a Geometrically Constrained Vortex. Water 2022, 14, 771
Authors: Agostinho Luewton L. F. , Pecnik Rene , Woisetschläger Jakob , de Kroon Esther , Şişcanu Nicolae , van de Griend Maarten V. , Loiskandl Willibald , Fuchs Elmar C.
Published: June 2023

There was an omission in the original publication [...]
Groundwater–Surface Water Exchange and Spatial Distribution of Arsenic in Arid and Semi-Arid Regions: The Case of Aksu River in Xinjiang, Northwestern China
Authors: Shao Fengjun , Wang Wenfeng , He Jing
Published: June 2023

The Aksu River, a quintessential inland river, exhibits elevated arsenic (As) concentrations in certain sections of its natural waters. Further investigation is necessary to determine the role of surface water and groundwater (SW-GW) exchanges in contributing to these high As concentrations. Both surface water and groundwater constitute crucial components of the basin water cycle, and the interaction between the two has been a central focus in basin water cycle research. In this study, a total of 59 groundwater samples and 41 surface water samples were collected along the river’s course within the basin. Among the groundwater samples, 18.64% exceeded the permissible drinking limit for As concentrations (10 μg/L), while 39.02% of the surface water samples exceeded this threshold. The water bodies in the Aksu River Basin are mildly alkaline, with total dissolved solids (TDSs) in surface water significantly surpassing those in groundwater. The chemical compositions of surface water and groundwater are strikingly similar, with the predominant anions being chloride (Cl−) and sulfate (SO42−) and the principal cations being sodium (Na+). The dissolution of silicate and carbonate minerals primarily influences the water chemistry characteristics of surface water and groundwater in the Aksu River Basin, followed by the dissolution of salt rocks. Human activities also play a major role in affecting the river’s water quality. The distribution of groundwater with elevated As content is entirely encompassed within the spatial distribution of surface water. Groundwater–surface water exchange plays a vital role in As enrichment in surface water.
Optimization of Adsorption Conditions Using Response Surface Methodology for Tetracycline Removal by MnFe2O4/Multi-Wall Carbon Nanotubes
Authors: Zhao Weigao , Hao Chenjie , Guo Yiping , Shao Wanfei , Tian Yimei , Zhao Peng
Published: June 2023

In this study, the optimal conditions and effects of external factors on tetracycline adsorption by magnetic multi-walled carbon nanotubes (MMWCNTs) were established by a response surface methodology for the first time. Batch adsorption experiments showed that increasing the dosage and contact time effectively promoted the adsorption of tetracycline and maximum removal of 97.93–99.13% was achieved at pH 3–7. The pseudo-second-order model and Fourier-transform infrared spectroscopy spectra indicated that the mechanism of adsorption may be π–π electron interaction and cation–π electron bonding. Design Expert was utilized to develop a response surface methodology for the analysis and optimization of tetracycline adsorption by magnetic multi-walled carbon nanotubes. The Box–Behnken design (BBD) results showed that the optimization exhibited high significance and reliability. The main effect plots and Pareto chart indicated that pH exerted a significant individual effect on the regulation of adsorption, while 3D response surface plots and interaction effect plots exhibited a significant antagonistic interaction between pH and contact time. A maximum tetracycline removal of 99.16% was achieved under the optimal conditions of 12 mg adsorbent dosage at pH 5.43, with an adsorption time of 120 min. Mathematical and experimental results confirmed the accuracy of the established optimal conditions.
Assessing Feasibility of Water Resource Protection Practice at Catchment Level: A Case of the Blesbokspruit River Catchment, South Africa
Authors: Makanda Koleka , Nzama Stanley , Kanyerere Thokozani
Published: June 2023

The operationalization of water resource protection initiatives for surface water resource quality and equitable water quality allocation is critical for sustainable socio-economic development. This paper assessed Blesbokspruit River Catchment’s water quality status, using the South African Water Quality standards and Water Quality Index (WQI). Protection levels for quality, and waste discharge for point sources were set and evaluated using the total maximum daily loads (TMDLs) and chemical mass balance (CMB) techniques, respectively. The study found that the water quality results for the analysed physico-chemical parameters (Na+, Ca2+, Mg2+, Cl−, F−, pH, EC, SO42−) of the data collected from 2015 to 2022 were within the limits of the water quality standards, except for NO3− and PO42−. The water quality from the study area was categorized as acceptable for drinking purposes with the WQI of 54.80. The application of the TMDL approach resulted in the 77.96 mS/m for electrical conductivity (EC), 9.92 mg/L for phosphate (PO42−), and 15.16 mg/L for nitrate NO3− being set as the protection levels for the catchment. The CMB was found to be a useful tool for the evaluation of point source discharges into water resources. The study recommends the application of TMDL and CMB techniques in water resource protection practice.
Variations in Aquatic Vegetation Diversity Responses to Water Level Sequences during Drought in Lakes under Uncertain Conditions
Authors: He Shan , Xu Jijun , Yi Yujun , Zhang Enze
Published: June 2023

Water level variability and temporal change are critical for shaping the structure of aquatic vegetation. Much research has examined the response of aquatic vegetation to hydrological metrics. However, the hydrological sequence is a fundamental driver of aquatic ecosystem structure and function. Given the aleatory uncertainty of future water levels under an unstable climate, how aquatic vegetation responds to changing dynamics in hydrological processes, especially shifting water level sequences, remains insufficiently explored. In this paper, we establish an evaluation framework to study the response of vegetation diversity to variation in water level sequences during a drought event. To do this, the uncertainty and variability of water level processes are both considered. Altering water level processes was achieved using two types of scenarios in order to explore the effects of differing water level sequences (i.e., changing the order of high vs. low water levels) on the probability distribution of four indexes of aquatic plant diversity (e.g., Margalef’s, Simpson’s, Shannon’s, and Pielou’s evenness index). Our results show that altering the order of water level state can lead to differences in the diversity of aquatic vegetation, with a pronounced impact on vegetation complexity. This suggests that the specific sequence of water level events is critical for shaping aquatic vegetation structure. In addition, we found that a uniform distribution of water level state is beneficial for enhancing a species’ dominance in aquatic vegetation. Our findings provide guidance for improving the future development of freshwater ecosystem protection and lake management.
Surface Modification on Magnesium Alloys’ Hardness and Microstructure Using Friction Stir Processing – A Review
Authors: Zulkfli Zuhairah , Hamedon Zamzuri , Fatchurrohman Nanang
Published: June 2023

Low density of magnesium-based alloy is one potential as the lightest structural material for light weight-high strength applications for automotive and aerospace. Severe plastic deformation (SPD) together with thermomechanical processing are proved to be a successful method for attaining desired microstructural modifications through achieving fine and highly misoriented microstructures and creating various structures to the bulk properties of magnesium alloy. The material's deformation can result in an altered microstructure that is gainful to the material's requirements. However, the poor deformability of magnesium and its alloys limits the application of the thermomechanical approach. Controlling over temperature and deformation rate is hard to achieve. Among the thermomechanical processes, friction stir processing (FSP) offers an easy way to achieve process stability and mechanical properties enhancement by heat treatment which results in the closure of porosity and refined grain size. During this process, heat is generated by the rotation of the FSP processing tool. Few process parameters such as rotational and traverse speeds should be controlled to make FSP stay within the defined processing condition. It is critical to set the right tool rotational speed as well as traverse speed to ensure adequate heat generation. As there are no established standards for operating the FSP, the only solution is to experiment with different settings to find the best parameter which will produce better quality on processed magnesium alloy workpiece. This paper explores earlier studies on surface modification via FSP technique to improve the mechanical properties strengthening of magnesium alloy mainly on grain size and hardness. The surface modification was done mostly on popular series of magnesium alloy (AZ series) using different tool material, tool geometry and different parameters combination. A comprehensive view of surface modification on magnesium alloys which includes the FSP tool and workpiece material used, variations of FSP parameters settings as well as the effect on hardness and microstructure analysis will be discussed.
GERÇEKLİĞİN FİZİĞİ
Authors: ASLAN ÇATALTEPE Özden
Published: June 2023

Fizik insanlık tarihinin en eski bilim dalıdır. Astrofizikten çekirdek fiziğine kadar pek çok araştırma alanına sahip olan fizik bilimi, teknolojinin ve endüstrinin ilerlemesinde önemli etkilere sahiptir. Fizik, birçok kişi tarafından anlaşılması zor bir bilim dalı olarak tanımlanır. Bu nedenle bu makalede, fiziğin farklı alanlarındaki bazı bilgilerin günlük yaşamda karşılaşılan olay ve durumlar arasında benzerlikler bulunarak açıklanması ve böylece fizik biliminin daha ilgi çekici ve anlaşılır hale getirilmesi amaçlanmaktadır.
Role of ChatGPT in Vietnamese Education
Authors: Trương Hana , Nguyễn Phong , Cao Linh , Nguyễn Thu , Nguyễn Phương
Published: June 2023

In this article, we examine two questions regarding the capabilities and role of ChatGPT in Vietnamese education. Based on previous research analysis and direct interviews with ChatGPT, the results show that ChatGPT has significant potential for application in Vietnamese education and comprehensive transformation of the education sector. However, the lack of full understanding of ChatGPT's capabilities also raises concerns and calls for further research in applying ChatGPT to the field of education.
ANÁLISE DOS PROCEDIMENTOS DE LICENCIAMENTO AMBIENTAL DOS COMPLEXOS DE ENERGIA SOLAR FOTOVOLTAICA E EÓLICA NO CEARÁ
Authors: Ramos Teomar Filho de Brito , Pereira Ana Lúcia Feitoza Freire Pereira , Pessoa Eliano Vieira , Albuquerque Cleverton Caçula de
Published: June 2023

Os impactos causados pelo uso de fontes poluidoras para a geração de energia elétrica têm criado oportunidades para empreendimentos geradores de energias limpas e renováveis. O licenciamento ambiental é o processo que garante a adoção de práticas sustentáveis nesses projetos e por se tratar de um trâmite complexo, é pertinente a realização de estudos dos procedimentos adotados pelos órgãos ambientais, possibilitando sua otimização. Este trabalho visa analisar os procedimentos de licenciamento ambiental dos empreendimentos de geração de energia solar fotovoltaica e eólica realizados pela Superintendência Estadual de Meio Ambiental do Ceará (SEMACE). Para isso, foi feita pesquisa documental, descritiva e explicativa, analisando os dados entre os anos de 2014 e 2021. O órgão ambiental possui procedimentos bem definidos, no qual as etapas, os prazos e a documentação necessária variam de acordo com o porte, o tipo e a localização do empreendimento. Foram emitidas 728 licenças, sendo 461 para empreendimentos de energia eólica e 267 para energia solar fotovoltaica. Cerca de 23,68% dos complexos eólicos licenciados estão localizados no Litoral Norte e 46,72% dos complexos fotovoltaicos licenciados situam-se no Vale do Jaguaribe. O litoral cearense possui alto potencial de geração de energia eólica, podendo expandir-se para a Serra da Ibiapaba e Chapada do Araripe. A radiação solar tem sido bastante aproveitada no Vale do Jaguaribe, podendo ser explorada também em outras regiões.
Responding to Customer’s Decision-making Intention in Pandemic Scenario: Indicators for Choosing the Right Marketing Automation Platform
Authors: Huang Yu-Ting
Published: June 2023

The Covid-19 pandemic has impacted the marketing activities of companies in various industries and has had a dramatic impact on the global economy. Digital technologies played a vital role during the lockdown as they facilitated communication between organizations and customers. Channels for reaching customers and marketing communications are changing rapidly. Traditional buy-sell relationships between customers and companies are becoming more complex and must be understood in a more differentiated way. Supporting marketing activities by exploring digital technologies, this study is conducted to (1) provide insights into current marketing automation and customer decision-making intentions implemented by companies, and (2) identify the motivations, benefits, and challenges driving the adoption of digital marketing automation. A holistic MA model for choosing a MA solution complements the basic information and shows the selection procedure and the most important selection and evaluation indicators.
Improving the coordination abilities of convoy and security police officers through the use of an obstacle course
Authors: Balandin Alexey
Published: June 2023

Introduction. Modern conditions of official activity of convoy and security police officers impose high demands on the level of their physical fitness. In their professional activities, they often face the need to use physical force, including martial art techniques against suspects and defendants for selfdefense, as well as to overcome resistance to legal demands. However, the use of physical force and fighting techniques is impossible without well-developed physical characteristics. This article considers the problem of formation and improvement of physical characteristics necessary for professional and service tasks of convoy and security police officers. Research methods. The author used a test method to determine the effectiveness of the obstacle course on the development of coordination abilities of convoy and security police units, and the method of mathematical statistics Student’s t-criterion for quantitative processing of the obtained results. Research results. The study conducted by the author involved trainees undergoing police professional training. The research was organised on the basis of Tuymen Institute for Advanced Training for employees of the MIA of Russia during the period from July to October 2022. At the beginning of the experimental and control group participants showed the same level of development of coordination abilities. During the pedagogical experiment practical physical training sessions for the representatives of the experimental group were carried out with using the principle of dynamic scheme of obstacle course; the representatives of the control group were trained according to the general plan. In the final test the results of the participants of the experimental group surpassed those of the control group. Based on the results the author concludes that the use of the obstacle course has an effective impact on the development of coordination abilities of the trainees.
Model SAMR w kreowaniu cyfrowego środowiska uczenia się języka obcego przez dzieci w wieku wczesnoszkolnym
Authors: Sikorska Joanna
Published: June 2023

Jedno z podstawowych zadań szkoły na poziomie edukacji elementarnej, związane z przygotowaniem dobrych podstaw alfabetyzacji w zakresie nabywania przez dzieci języka obcego, wymaga od nauczycieli wspierania rozwoju mechanizmów uczenia się dziecka poprzez świadome wykorzystywanie dostosowanych do potrzeb i możliwości dziecka w tym okresie życia metod i narzędzi wywodzących się z informatyki. Celem podjętych badań było wykorzystanie założeń modelu SAMR we wspieraniu dzieci z klas 2 szkoły podstawowej w nauce języka obcego w sytuacji edukacji zdalnej oraz hybrydowej. W badaniach action research, opierając się na modelu SAMR Rubena R. Puentedury (2013), wykorzystano narzędzia cyfrowe, które pozwoliły angażować dzieci w działania wykorzystujące różne formy cyfrowych opowieści. Badania wskazują na optymalizację uczenia się badanych dzieci w formie hybrydowej – wykorzystanie tu narzędzi cyfrowych dało lepsze rezultaty niż w uczeniu się wyłącznie zdalnym. Wnioski wynikające z badań prowadzonych w niewielkiej grupie dzieci (trudno tym samym je uogólniać) posłużą jako inspiracja do nakreślenia dalszych perspektyw badawczych w analizowanym zakresie, w tym do skonstruowania modelu badań eksperymentalnych.
Методика визначення втрат лісу з використанням ГІС технологій
Authors: Горелик Станіслав Ігорович , Саул-Гозе Денис Костянтинович , Сич Роман Сергійович
Published: June 2023

Однією з екологічних проблем України є незаконне використання лісових ресурсів, а саме несанкційні рубки лісу. За даними Державного агентства лісових ресурсів обсяги лісопорушень досягають десятки, а іноді тисячі кубометрів деревини на рік. Отже, актуальним завданням є достовірне визначення ділянок незаконної рубки лісу. Існують багато методів визначення цього правопорушення, їх можна поділити на дві великих групи: контактні та дистанційні. Контактні методи дозволяють визначати на місці факт незаконної рубки лісу, але потребують значних матеріальних і часових витрат. Серед наявних контактних даних слід зазначити відкритий Реєстр дозвільних документів на заготівлю деревини та геопортал «Публічна кадастрова карта», яка дозволяє визначити законність рубок. Дистанційні дані дозволяють з мінімальними часовими й матеріальними витратами локалізувати ділянки рубок лісу й визначати їх геометричні характеристики, але мають ряд недоліків пов’язаних з метеоумовами та неоднозначною інтерпретацією космічних методів дослідження. Комплексування контактних і дистанційних даних з їх подальшим аналізом доцільно проводити з використанням геоінформаційних систем і технологій. Геоінформаційні технології дозволяють швидко обробляти великий масив контактних і дистанційних даних, створенням картографічні моделі для їх подальшого аналізу і інтерпретації. Отже комплексне використання контактних і дистанційних методів досліджень дозволить оперативно виявляти ділянки вирубаного лісу, визначати геометричні характеристики та їх законність. Розроблена методика визначення рубок лісу з використанням ГІС технологій полягає у комплексному використанні відкритих даних з публічних порталів про наявність лісорубних квитків, космічних знімків з супутника Sentinel-2, програмного забезпечення ArcGIS з інструментами просторового аналізу ArcToolbox. Практична реалізація розробленої методики виконана для усієї Харківської області. Виявлено 3299 рубок, з яких 1977 – зроблені у період з 2008 по 2021 рр. За цей же період визначено 648 рубок лісу з відсутніми дозвільними документами.
Pemberdayaan Sosial Terhadap Komunitas Adat Terpencil Di Kabupaten Merangin Tahun 2021 (Studi Kasus Pemberdayaan Di Permukiman Sad Desa Sungai Ulak Kecamatan Nalo Tantan)
Authors: Maryam Siti , Susilawati Susilawati
Published: June 2023

Penelitian ini bertujuan untuk mengetahui Pemberdayaan Sosial Terhadap Komunitas Adat Terpencil di Kabupaten Merangin Tahun 2021 di Desa Sungai Ulak Kecamatan Nalo Tantan, serta untuk mengetahui kendala Pemberdayaan Sosial Terhadap Komunitas Adat Terpencil di Kabupaten Merangin Tahun 2021 di Desa Sungai Ulak Kecamatan Nalo Tantan. Metode yang digunakan dalam penelitian ini penelitian ini adalah metode penelitian kualitatif yang bersifat dengan studi deskriptif. Metode yang digunakan dalam penelitian ini penelitian ini adalah metode penelitian kualitatif yang bersifat dengan studi deskriptif. Teknik pemilihan informan yang digunakan oleh peneliti dalam penelitian ini adalah dengan menggunakan metode purposive sampling (teknik penentuan sampel dengan pertimbangan tertentu). Hasil penelitian menunjukan bahwa Pemberdayaan KAT diatur dalam Peraturan Pemerintah Nomor 39 Tahun 2012 tentang penyelenggaraan kesejahteraan Sosial yang tertera dalam pasal 23 ayat (1). Secara khusus diatrur dalam Peraturan Presiden Nomor 186 tahun 2014 tentang Pemberdayaan Sosial terhadap Komunitas Adat Terpencil. Pemberdayaan Sosial Terhadap Komunitas Adat Terpencil di Kabupaten Merangin Tahun 2021 di Desa Sungai Ulak Kecamatan Nalo Tantan diantaranya permukiman, data kependudukan, pendidikan, kesehatan, dan agama. Kendala Pemberdayaan Sosial Terhadap Komunitas Adat Terpencil di Kabupaten Merangin Tahun 2021 di Desa Sungai Ulak Kecamatan Nalo Tantan diantaranya ketersedian anggaran yang sangat terbatas, serta budaya SAD yang susah untuk perubahan.
An outlook of early rehabilitation of stroke patients using VR technologies
Authors: Petrova Marina V. , Ryzhova Olga V. , Cheboksarov Dmitrii V. , Saenko Irina V. , Sueva Victoria S. , Petrikov Sergey S.
Published: June 2023

Among all the latest technologies, virtual reality (virtual reality, VR) can be a powerful and promising tool for achieving the main goals of rehabilitation. It has been experimentally proven that rehabilitation based on virtual technologies is able to recreate a realistic perception and corresponding reaction in a patient, thereby improving the quality of cognitive and motor rehabilitation with the least cost. However, the success of such rehabilitation depends mainly on the technologies and techniques used by doctors.
This study is devoted to the important problem application of virtual reality technologies in patients with acute impairment of cerebral circulation at the stage of early rehabilitation. We focus on the neurophysiological aspects of the VR technology application and the mechanisms of the brains neuroplasticity during application of virtual reality. The characteristic features of modern approaches to application of virtual reality are highlighted. Also, a novel concept is proposed for the modern VR-technology application in intensive care unit patients. In conclusion, we discuss the possibilities of VR-technologies application, allowing for the simulation of any situation, as well as a possibility of synchronous playback of a music track with walking simulation in ICU patients in the acute period of stroke at the stage of early rehabilitation.
INTEGRATION OF PHYSIOTHERAPY IN THE INSTRUCTIONAL-EDUCATIONAL PROCESS IN THE CORRECTION OF WEIGHT STATUS IN CHILDREN
Authors: Savițchi Svetlana , Agapii Eugeniu , Rosca Vladimir
Published: June 2023

The prevalence of overweight and obesity in children in the Republic of Moldova has increased dramatically in recent decades. And data from the Summary Report of the Health Behaviour Assessment Study of School-Aged Children (2014) shows that 11% of children are overweight, including 2.2% - obese. Recovery and correction of weight status in overweight and obese children requires a comprehensive approach involving dietary correction, regular physical activity, and behavioural changes, with a focus on long-term weight management rather than short-term extreme weight reduction.
Recovery programs should incorporate reasonable weight loss goals, dietary correction, activity management and physical activity into both the instructional process and daily physical activity. Integrating physiotherapy into the educational instructional process is the modern approach and focuses on assessment, action planning, implementation, reassessment, modification, and discharge when goals are achieved. Subjects included in the study were 10 children with overweight, aged 12 - 13, who study in the Theoretical High School "Mihail Sadoveanu", Chisinau and at the Rehabilitation centre Kinetica. The period from September to May 2021 - 2022.
Komposisi Jenis Vegetasi dan Karakteristik Kimia Tanah pada Tapak Tegakan Sengon dan Karet di Desa Gohong, Kabupaten Pulang Pisau
Authors: Setiarno Setiarno , Noviyanti Amelia , Junaedi Ajun , Supriyati Wahyu , Rosdiana Rosdiana
Published: June 2023

Struktur komunitas tumbuhan di suatu lokasi memiliki hubungan dengan karakteristik kimia tanahnya. Penelitian ini dilakukan di daerah kebun sengon dan karet di wilayah administratif Desa Gohong, Kecamatan Pulang Pisau. Penelitian ini bertujuan untuk menggambarkan dan menganalisis struktur komunitas tumbuhan serta karakteristik kimia tanah di lokasi kebun sengon dan karet di Desa Gohong, Kecamatan Pulang Pisau. Data vegetasi dikumpulkan menggunakan metode plot berstrata pada 9 plot yang ditempatkan di setiap kebun, sedangkan sampel tanah untuk analisis kimia tanah merupakan campuran komposit dari 9 titik bor dari setiap lokasi pada dua kedalaman, yaitu 0-30 cm dan 31-49 cm. Tumbuhan yang ditemukan di lokasi penelitian sebanyak 15 spesies yang tergolong dalam 12 famili, di kebun sengon terdapat 10 spesies sedangkan di kebun karet terdapat 6 spesies. Spesies tumbuhan dengan INP tertinggi di kebun sengon adalah sengon dan galam, sedangkan di kebun karet adalah karet. Nilai ID berkisar antara 0,2-1,0. Kedalaman gambut di lokasi penelitian diukur kurang dari 50 cm dengan karakteristik kimia C-kandungan organik <5%, yaitu rendah dengan rentang 4,89-6,98%, dan keasaman tanah sangat asam (pH <4,5) dengan rentang nilai pH 3,59-3,80 dan kejenuhan basa (Basa Saturation, BS) sangat rendah dengan rentang nilai 1,89-3,27%. Kandungan N-total tanah bervariasi dari rendah hingga sedang dengan rentang nilai 0,14-0,41%. Ketersediaan P sangat rendah dengan nilai bersamaan 1,18-1,41 ppm, dan 0,98, dan 1,19 ppm; nilai K-dd, Ca-dd, Mg-dd, dan Na-dd semuanya dangkal dengan rentang 0,03-0,05 cmol(+).kg-1, dan 0,07-0,10 cmol(+).kg-1, kemudian Ca adalah 0,83-1,44 cmol(+).kg-1; kemudian Mg memiliki nilai yang sama yaitu 0,10 cmol(+).kg-1, dan Na adalah 0,05-0,11 cmol(+).kg-1, sedangkan KTK sangat tinggi dengan nilai 49,38-60,05 cmol(+).kg-1.
Waktu Kering Angin Pada Daun dan Tangkai Terhadap Mutu dan Rendemen Minyak Nilam Aceh (Pogostemon cablin Benth)
Authors: Nuwa Nuwa
Published: June 2023

Study of the yield and quality of Aceh patchouli oil from leaves and stalks at several drying times, in Bukit Batu, Palangka Raya City, Central Kalimantan. Treatment of drying time  patchouli leaves and stalks to a certain extent can increase the yield of patchouli oil produced. 4 days drying treatment  leaves produced the highest yield of 5.17%, stalks for 8 days produced the highest yield of 3.78% decreasing with the longer drying time. The lowest yields without desiccation (control) on leaves and stalks were 1.4% and 1.16%. Drying time treatment of patchouli leaves and stalks to some extent increased the patchouly alcohol content of patchouli oil produced.  Drying time treatment for 8 days produced the highest patchouly alcohol in leaves (31.48%) and stalks (29.71%) then decreased with the longer drying time.

The lowest patchouly alcohol content in the control treatment 22.94% and 19.73% in the leaves and stalks. Physical and chemical properties of patchouli oil characteristics (color, optical rotation, specific gravity, refractive index and patchouly alcohol), that the quality of patchouli oil produced by the control is low. Quality requirements of patchouli oil based on SNI No. 06-2385-1991
Potensi Wisata Di Kecamatan Dusun Selatan Kabupaten Barito Selatan
Authors: Hamidah Noor , Santoso Mahdi , Mahmudah Noor
Published: June 2023

South Barito Regency is located in Central Kalimantan Province which has potential in the tourism sector. One of the districts as a tourist attraction in South Barito Regency is Dusun Selatan District. Tourist attractions include natural attractions, sports attractions, man-made attractions and special interest attractions. There are twenty one tourist objects in Dusun Selatan District, with developing tourist areas namely natural tourism, man-made tourism and cultural tourism. The aim of the research is to identify the tourism development potential of Dusun Selatan District, South Barito Regency from various natural resources, cultural tourism and artificial tourism. The tourism potential in several villages in Dusun Selatan District is an opportunity for the development of a tourist area in South Barito Regency. The research method uses qualitative methods based on data from literature studies and observations, to process the analysis and synthesis of tourism potential with reference to regional analysis through the SWOT analysis tool. The results of the research include: location analysis, existing potential analysis, and tourism development analysis
Особливості застосування систем дистанційного навчання у формуванні компетентностей під час підготовки фахівців з інформаційних технологій
Authors: Senyk V. V. , Maherovska T. V. , Maherovskiy D. V.
Published: June 2023

Проаналізовано розвиток систем дистанційного навчання із застосуванням інформаційно-комунікаційних технологій. Узагальнено основні переваги та недоліки, які впливають на формування загальних і спеціальних (фахових) компетентностей під час дистанційної форми навчання. Означено проблему необхідності дослідити вплив дистанційної форми навчання на формування спеціальних і фахових компетентностей під час підготовки фахівців за напрямом 12 – інформаційні технології. На підставі узагальненого досвіду застосування дистанційного навчання з використанням інформаційно-комунікаційних систем сформовано перелік питань для дослідження означеної вище проблематики. За результатами дослідження, проведеного за допомогою анонімного опитування здобувачів вищої освіти засобами програмного забезпечення Googlform, встановлено, що використання систем дистанційного навчання переважно сприяють засвоєнню знань під час підготовки фахівців з інформаційних технологій і їх варто активно використовувати на постійних засадах (після завершення карантинних обмежень чи припинення військових дій). Для цього потрібно внести відповідні зміни до освітньо-професійних програм з підготовки фахівців з інформаційних технологій, навчальних і робочих програм, іншого навчально-методичного забезпечення. У цій роботі означено потреби подальшого дослідження вказаної проблематики через певні застереження (обмеження), які окреслено за результатами проведеного опитування. Зокрема: дослідження здійснювали на підставі однієї освітньо-професійної програми; результати дослідження отримано на підставі аналізу діяльності одного закладу вищої освіти; кількість респондентів не є достатньо великою для того, щоб впроваджувати результати дослідження на підготовку фахівців з інформаційних технологій на загальнодержавному рівні. Водночас у роботі закладено основи для подальших досліджень з цієї проблематики та впровадження їх результатів у процес підготовки фахівців з інформаційних технологій.
Модель та засоби збирання та оброблення даних з використанням машинного навчання
Authors: Petryna V. V. , Doroshenko A. V. , Sydorenko R. V. , Teslyuk V. M.
Published: June 2023

Досліджено вплив ітеративного методу зважування даних респондентів на підставі певних факторів на точність навчання моделі машинного навчання для вирішення завдань класифікації. Збір та оброблення даних є критичним етапом в процесі розроблення та використання моделей машинного навчання, оскільки якість та наочність даних безпосередньо впливають на точність та ефективність моделей. Проаналізовано математичне забезпечення алгоритмів моделей класифікації. Здійснено огляд літературних джерел, пов'язаних із тематикою статті. Проаналізовано набори даних, доступні у мережі для вирішення завдань класифікації. Розроблено програмне забезпечення для роботи із моделями машинного навчання. Проведено попередню підготовку вхідних даних для навчання та тестування вибраних моделей. Використано такі моделі класифікації, як наївний класифікатор Байєса, класифікатор випадкового лісу, наївний байєсів класифікатор Гауса, а також ітеративний метод зважування даних. Ці моделі інтегровано у програмне забезпечення, розроблене для оброблення, підготовки, зберігання даних. Досліджено обрані моделі із використанням попередньо підготовлених даних за допомогою програмного забезпечення відповідно до визначених сценаріїв. Згідно з результатами дослідження виявлено позитивний тренд на якість навчання моделей за коректної підготовки даних і вибору відповідних змінних для зважування даних респондентів. Показники ефективності, точності навчання алгоритму показують позитивну динаміку порівняно з результатами тестування моделей без використання зважування даних. Результатами дослідження підтверджується значущий вплив ітеративного методу зважування даних на результати навчання, тренування та тестування моделей машинного навчання, а саме мультиплікативного класифікатора Байєса.
EFEKTIVITAS MODEL PBL BERBANTUAN CANVA TERHADAP HASIL BELAJAR KOGNITIF SISWA KELAS III
Authors: Yulifa Emi , Siska Pramasdyahsari Agnita , Suneki Sri , Sijamtini Ninik
Published: June 2023

Hasil belajar kognitif siswa kelas III-A SDN Petompon 02 cenderung rendah dikarenakan pembelajaran yang berpusat pada guru, menerapkan model pembelajaran konvensional, dan belum memanfaatkan teknologi dalam pembelajaran. Tujuan dilakukannya penelitian ini ialah untuk mengetahui hasil belajar kognitif muatan Bahasa Indonesia dengan model PBL berbantuan Canva dapat memenuhi KKM atau tidak. Penelitian ini juga bertujuan untuk mengetahui efektifitas model PBL berbantuan canva terhadap hasil belajar kognitif siswa pada muatan pelajaran Bahasa Indonesia kelas III-A SDN Petompon 02. Penelitian ini ialah penelitian kuantitatif dengan jenis pre experimental design menggunakan one group pretest posttest. Uji hipotesis yang dilakukan ialah menggunakan uji One Sample t test dengan t_hitung = 5, 207 > t_tabel = 2,069 atau Sig. 0,000 < α = 0,05 maka Ho ditolak dan Ha diterima. Sementara itu, penelitian ini juga menggunakan uji N-Gain yang memperoleh hasil 66,29 dengan kategori sedang. Sehingga dapat disimpulkan bahwa model PBL berbantuan Canva cukup efektif terhadap hasil belajar kognitif siswa pada muatan Bahasa Indonesia di kelas III.
Meningkatkan Motivasi Membaca Siswa Kelas III Melalui Model Make a Match
Authors: Nurwidianing Susan , Andriani Nita , Putri Sintia Eka , Jamaludin Ujang , Setiawan Sigit
Published: June 2023

ABSTRACT

Motivation to read in students must be owned by a student, so that learning objectives are achieved easily. However, in reality students' reading motivation tends to be low, in order to increase students' reading motivation, teachers must use creative methods such as using learning models that can stimulate students to read. So the learning model that teachers can use is the make a match learning model. With that this research aims to be able to see how to increase motivation to read in students after using the make a match learning model in learning. This research was carried out using a descriptive qualitative approach, with the research subjects being class III students. The implementation was a class action observation using the make a match learning model in the learning process, carried out sequentially following the syntax of the make a match model. The results obtained by the researchers were an increase in students' reading motivation during learning using the make a match model, data obtained through observation of class action, review and also direct interviews with students.

 

ABSTRAK

Motivasi membaca pada siswa haruslah dimiliki oleh seorang siswa, agar tujuan pembelajaran tercapai dengan mudah. Namun kenyataannya motivasi membaca pada siswa cenderung rendah, untuk untuk dapat meningkatkan motivasi membaca pada siswa ini, guru harus menggunakan cara yang kreatif seperti menggunakan model pembelajaran yang dapat merangsang diri siswa untuk membaca. Maka model pembelajaran yang dapat guru gunakan ialah model pembelajaran make a match. Dengan itu penelitian ini bertujuan untuk dapat melihat bagaimana peningkatan motivasi membaca pada siswa setelah digunakannya model pembelajaran make a match pada pembelajaran. Penelitian ini dilaksanakan menggunakan pendekatan kualitatif deskriptif, dengan subjek penelitian adalah peserta didik kelas III. Pelaksanaannya merupakan observasi tindakan kelas dengan menggunakan model pembelajaran make a match dalam proses pembelajarannya, dilaksanakan secara urut mengikuti sintak pada model make a match. Hasil yang didapat oleh peneliti ialah adanya peningkatan terhadap motivasi membaca siswa pada saat pembelajaran menggunakan model make a match, data yang diperoleh melalui observasi tindakan kelas, peninjauan dan juga wawancara secara langsung pada siswa.
PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS WEB GOOGLE SITES PADA PEMBELAJARAN IPS SEKOLAH DASAR
Authors: Saputra Ria , Diandita Yusuf Nungky , Zulfiati Heri Maria
Published: June 2023

Perkembangan teknologi tentunya memiliki dampak besar bagi dunia pendidikan, salah satunya yaitu inovasi media pembelajaran. Adanya inovasi media pembelajaran, guru bisa menambah motivasi belajar siswa yang nantinya juga akan berdampak pada hasil belajar siswa. Penelitian ini mengembangkan media pembelajaran interaktif berbasis website google sites dalam meningkatkan hasil belajar pada mata pelajara IPS di SMP Islam Ngebruk. Metode yang digunakan yaitu metode R&D. Penelitian ini menggunakan 3 kelas yaitu kelas uji coba, eksperimen, dan kelas kontrol ada 20 siswa. Hasil yang didapatkan pada kelas eksperimen melalui pre test post test yaitu nilai pretes 77,8 postes 82,7. Kelas kontrol nilai pretes 73,2 postes 80,6. Untuk penilaian validasi ahli media mendapatkan nilai 94%, ahli materi, 78%, guru IPS 78%, respon siswa 80%-100%. Bisa disimpulkan bahwa pelaksanaan media pembelajaran website google sites ini bisa meningkatkan hasil belajar pada mata pelajaran IPS di SMP Islam Ngebruk dikatakan media pengembangan ini layak dan tidak perlu revisi serta respon siswa yang merasa senang. Perkembangan teknologi tentunya memiliki dampak besar bagi dunia pendidikan, salah satunya yaitu inovasi media pembelajaran. Adanya inovasi media pembelajaran, guru bisa menambah motivasi belajar siswa yang nantinya juga akan berdampak pada hasil belajar siswa. Penelitian ini mengembangkan media pembelajaran interaktif berbasis website google sites dalam meningkatkan hasil belajar pada mata pelajara IPS di SMP Islam Ngebruk. Metode yang digunakan yaitu metode R&D. Penelitian ini menggunakan 3 kelas yaitu kelas uji coba, eksperimen, dan kelas kontrol ada 20 siswa. Hasil yang didapatkan pada kelas eksperimen melalui pre test post test yaitu nilai pretes 77,8 postes 82,7. Kelas kontrol nilai pretes 73,2 postes 80,6. Untuk penilaian validasi ahli media mendapatkan nilai 94%, ahli materi, 78%, guru IPS 78%, respon siswa 80%-100%. Bisa disimpulkan bahwa pelaksanaan media pembelajaran website google sites ini bisa meningkatkan hasil belajar pada mata pelajaran IPS di SMP Islam Ngebruk dikatakan media pengembangan ini layak dan tidak perlu revisi serta respon siswa yang merasa senang.

Kata Kunci: Media Pembelajaran interaktif, Website Googlesites, Hasil Belajar
ANALISIS MINAT SISWA TERHADAP LAGU DAERAH PADA KELAS V A SDN GAYAMSARI 02 SEMARANG
Authors: Maftuhah
Published: June 2023

This study aims to determine the analysis of students' interest in folk songs in class V A students at SDN Gayamsari 02 Semarang. The research was conducted at SDN Gayamsari 02 Semarang with a total of 24 students in class V A for the 2022/2023 academic year. The method used is descriptive and qualitative. The questionnaire contains 20 statement items. The purpose of giving a questionnaire is to find out how students' interest in regional songs is. The result of this study is that students still lack interest in folk songs. This is reflected in the overall average of 40.10% in the less category. The results of the questionnaire were also corroborated by interviews conducted by the researcher with the class V A teacher.
Leer Ilumina la Manera de Ver el Mundo, en Otras Palabras, Embellece la Mirada
Authors: Lopera Maya Gabriel Jaime
Published: June 2023

En los tiempos en que el tráfico de información digital hace más ágil el cruce de conocimientos, las revistas se han convertido en un vehículo de pruebas para los hallazgos, las ideas, y las propuestas que se convertirán en libros o tratados futuros, y son hoy dispositivos para medir el nivel de aceptación de las iniciativas individuales y colectivas para las academias cuya labor diaria gira en torno a la investigación y la creación. Ahora bien, indefectiblemente, para que una buena idea tenga un buen respaldo, lo más conveniente es que su enfoque esté iluminado con recursos suficientes para dar peso a esa observación y para hacer más compartible esa luz que quiere otorgar toda lectura.