bluuebunny/crossref_metadata_2025 huggingface dataset:
A New Philosophy of Production
Authors: Nešković Markić Dragana , Ilić Predrag , Bjelić Ljiljana Stojanović
Published: December 2022

The growth and development of society on our planet has caused a great consumption of natural resources and, on the other hand, the production of waste and other substances harmful both to human health and to the ecosystem itself. With this way of life, man has moved away from nature. Consequently, a system that functions contrary to natural laws has been established. With the new way of production, it is necessary to return to natural processes and sustainable technologies, clean technologies, and the use of renewable energy sources. The projection of sustainability in the future must be based on resource use restriction, material reuse and other principles of economic and environmental sustainability. This chapter will discuss the new approach to production and the product itself through the consideration of several different possibilities such as circular economy, industrial ecology, ecological economy, blue economy, biomimicry, cradle to cradle, cleaner production and regenerative design. The above-mentioned possibilities in production, design and the product itself aim to ensure that man functions in accordance with natural laws, and that we need to leave nature and the environment in a much better condition than we inherited.
Remediation Approaches for the Degradation of Textile Dye Effluents as Sustaining Environment
Authors: Lakshmana Prabu S. , Thirumurugan R. , Rengasamy M. , Venkatesan G.
Published: December 2022

Water has been considered one of the most valuable substances on earth for almost entire living organisms, from the largest mammal to the smallest microorganism. In addition, water is essential for the healthy life of human beings, animals, plants, etc. due to rapid, swift, and advanced industrialization, polluted water is discharged from different industries on many occasions. Among the different industrial pollutants, textile dyes and their effluents are the most predominant pollutants. Nearly 100,000 synthetic dyes are produced, and about one million tons of dyes are utilized for various dying purposes. About 10% of the dyes are unconfined into natural resources and the environment as waste, which spoils the aesthetic nature of the environment. These colored dyes are carcinogenic or mutagenic. These colored dyes are very fine particles in nature, and their concentrations of about 1 ppm are visible. These discharged color dyes cause grave intimidations with numerous problems; hence, these discharged color dyes as industrial waste have been considered as a major problem in the wastewater treatment process. In this chapter, various remediation techniques for the degradation of textile dyes effluents are discussed to maintain the sustainability of the environment. 
Composting of Fruit Wastes - An Efficient and Alternative Option for Solid Waste Management
Authors: Karunanithi Anbarasi , Dhanapal Dhanaraja
Published: December 2022

Municipal solid waste generation is exponentially increasing every year.
Managing these solid wastes is highly complicated due to the generation of a plethora
of waste. Since collecting and disposing of wastes in dumping sites cause severe
environmental impacts, an alternative option is the need of the hour. Thus the technique
used must be efficient and less in cost for agricultural applications. Composting is one
such process where the decomposition and recycling of organic material into a humusrich soil take place naturally known as compost. Fruit waste is rich in moisture content,
and thus possesses a unique property as a raw compost agent. The present study
focuses on composting of fruit wastes for reducing the amount of solid waste being
collected and dumped. If composting of fruit waste is carried out in backyards, then the
amount of solid waste entering the dumping sites can be reduced substantially. 
Comparative Adsorption Study of Acid Violet 7 and Brilliant Green Dyes in Aqueous Media using Rice Husk Ash (RHA) and Coal Fly Ash (CFA) Mixture
Authors: Dahlan Irvan , Mahdzir Sariyah , Mulkan Andi , Zwain Haider M.
Published: December 2022

One of the concerns in wastewater pollution is the presence of colored compounds, such as dyes. Acid violet 7 (AV7) and brilliant green (BG) are examples of synthetic dyes that have been used in various applications. In this work, a comparison of AV7 and BG dye adsorption was investigated using an adsorbent prepared from the mixture of rice husk ash (RHA) and coal fly ash (CFA). The attention was focused on the major batch adsorption parameters, which include adsorbent dosage, initial dye concentration, contact time, pH, shaking speed, and temperature. A lesser amount of RHA-CFA adsorbent was found to be used for adsorbing the same concentration of BG as compared to AV7. In contrast to AV7, the adsorption of BG rapidly attained equilibrium. The effective pH for BG removal is in the pH range of 6–8, while the highest AV7 removal was obtained at a low pH value. The adsorption removal for AV7 and BG increases with rising shaking speed and temperature. Scanning electron morphology (SEM) analysis showed the morphological porous structure on the RHA–CFA adsorbent surface. X-ray diffraction (XRD) analysis indicated the presence of complex compounds containing cristobalite, quartz, and mullite compounds in the RHA–CFA adsorbent. The study revealed that RHA–CFA adsorbents can remove AV7 and BG from an aqueous medium.
Behavior Analysis and Asymptotic Stability of the Traveling Wave Solution of the Kaup-Kupershmidt Equation for Conformable Derivative
Authors: Durur Hülya , Yokuş Asıf , Yavuz Mehmet
Published: December 2022

This article suggests solving the traveling wave solutions of the time.fractional Kaup-Kupershmidt (KK) equation via
1/ G
-expansion and sub-equation
methods. Non-local fractional derivatives have some advantages over local fractional
derivatives. The most important of these advantages are the chain rule and the Leibniz
rule. The conformable derivative, which has a local fractional derivative feature, is
taken into account in this study. Different types of traveling wave solutions of the
time-fractional KK equation have been produced by using the important benefits of
the time-dependent conformable derivative operator. These wave types are dark,
singular, rational, trigonometric and hyperbolic type solitons. 2D, 3D and contour
graphics are presented by giving arbitrary values to the constants in the solutions
produced by analytical methods. These presented graphs represent the shape of the
standing wave at any given moment. Besides, the advantages and disadvantages of
the two analytical methods are discussed and presented in the result and discussion
section. In addition, wave behavior analysis for different velocity values of the dark
soliton produced by the analytical method is analyzed by simulation. The conditional
convergence and asymptotic stability of the dark soliton discussed are analyzed.
Computer software is also used in operations such as drawing graphs, complex
operations, and solving algebraic equation systems.
Studi Perencanaan Tanggul Parapet dan Bronjong Sebagai Salah Satu Upaya Penanggulangan Banjir di Sungai Musi Kabupaten Empat Lawang Provinsi Sumatera Selatan
Authors: Azmi Muhammad Haikal , Hendrawan Andre Primantyo , Sisinggih Dian
Published: December 2022

During the rainy season, several areas in Empat Lawang Regency are very prone to overflowing water from the Musi River, causing flooding with an average height of 0.2 m-2.0 m, therefore the construction of parapet embankments and gabions is one of the efforts in controlling flood. In this study, a parapet was used with a Q25th return discharge plan of 441.42 m3/s using the Nakayasu Synthesis Unit Hydrograph (HSS) which was then analyzed for unsteady flow hydraulics using HEC-RAS 5.0.7. in the existing condition with the calculation of Q25th with the highest runoff as high as 2.21 m. The results of the planning show that the parapet I building is 1.7 m high, the parapet II building is 2.7 m high, the parapet III building is 3.2 m high, and the gabion building is 4.0 m high. Calculation of stability are controlled under various conditions (overturning, shearing, earthquake, soil bearing capacity). The Budget Plan (RAB) for this construction plan is Rp. 72,939,553,340 (Seventy Two Billion Nine Hundred Thirty Nine Million Five Hundred Fifty Three Thousand Three Hundred Forty Rupiah).Pada saat musim penghujan beberapa daerah pada Kabupaten Empat Lawang sangat rawan terkena luapan air dari Sungai Musi sehingga menyebabkan banjir dengan rata-rata ketinggian 0,2 m-2,0 m, maka dari itu bangunan tanggul parapet dan bronjong menjadi salah satu upaya dalam pengendalian banjir. Dalam penelitian ini digunakan parapet dengan perencanaan debit kala ulang Q25th sebesar 441,42 m3/dt dengan menggunakan Hidrograf Satuan Sintesis (HSS) Nakayasu yang selanjutnya dilakukan analisa hidrolika unsteady flow menggunakan HEC-RAS 5.0.7. pada kondisi eksisting dengan perhitungan Q25th dengan besar limpasan tertinggi setinggi 2,21 m. Hasil perencanaan didapatkan bangunan parapet I tinggi 1,7 m, bangunan parapet II tinggi 2,7 m, bangunan parapet III tinggi 3,2 m, dan bangunan bronjong tinggi 4,0 m. Perhitungan stabilitas terkontrol pada berbagai kondisi (guling, geser, gempa, daya dukung tanah). Rencana Anggaran Biaya (RAB) pada perencanaan konstruksi ini sejumlah Rp. 72.939.553.340 (Tujuh Puluh Dua Milyar Sembilan Ratus Tiga Puluh Sembila Juta Lima Ratus Lima Puluh Tiga Ribu Tiga Ratus Empat Puluh Rupiah).
Manual de manejo de yuca industrial en el Caribe colombiano
Authors: Espitia Montes Amaury Aroldo , Pérez Cantero Shirley Patricia , Támara Morelos Ricardo Enrique , Araújo Vásquez Hernando Alberto , García Peña Joaquín Alfonso , Rosero Alpala Elvia Amparo , Regino Hernández Sol Mara , Luna Castellanos Lily Lorena , García Herazo Jorge Luis , Martínez Figueroa Remberto Rafael , De La Ossa Albis Victor Alfonso
Published: December 2022

AGROSAVIA presenta al lector el Manual de manejo de yuca industrial en el Caribe colombiano, donde se describen las recomendaciones de manejo y las labores oportunas que deben realizarse para mejorar la productividad de los cultivos de yuca industrial, reconociendo su importancia para las industrias almidoneras y de balanceados. La información recopilada en este manual es útil para los productores yuqueros del Caribe, las organizaciones, los técnicos del campo, los extensionistas y demás interesados en profundizar en el manejo técnico del cultivo de yuca. El manual recoge información de procesos de investigación llevados a cabo durante muchos años por AGROSAVIA y otras instituciones que dedican su misión a la mejora del cultivo de la yuca a nivel nacional e internacional. Las recomendaciones aquí contenidas contribuirán al fortalecimiento y la apropiación tecnológica de los agricultores yuqueros de la región Caribe colombiana, quienes mediante el conocimiento de las variedades industriales mejoradas registradas para el Caribe y de las labores de manejo del material de siembra, del cultivo y de los recursos suelo-agua, contarán con la base técnica necesaria para tomar decisiones apropiadas en el manejo del cultivo. Este texto llega a sus manos con el fin de acompañar y guiar su labor de campo en el cultivo de yuca industrial, para mejorar técnicamente su rendimiento, calidad y rentabilidad.
Evaluación sensorial y de compuestos volátiles aromáticos del café (Coffea arábica var. Caturra Chiroso) de tres orígenes geográficos de Antioquia
Authors: Pazmiño-Arteaga Jhonathan David , Ruíz-Márquez Andrés Felipe
Published: December 2022

Ante el crecimiento de la demanda de cafés diferenciados, los productores han implementado nuevos procesos de poscosecha a modo de “receta”, sin considerar las variables internas y externas asociadas al proceso de transformación del café.  El objetivo de este trabajo fue evaluar las diferencias en el perfil sensorial y de compuestos volátiles aromáticos del café de tres orígenes geográficos, procesado bajo el mismo protocolo poscosecha. Se utilizó café de la variedad caturra chiroso de cultivos ubicados en Urrao, Fredonia y el Peñol (Antioquia).  El café se procesó por método húmedo, se evaluó sensorialmente y se usó cromatografía gaseosa acoplada a espectrometría de masas - HeadSpace para analizar los volátiles aromáticos del café tostado; los datos resultantes se analizaron usando pruebas de contraste y herramientas multivariadas. Esta evaluación sensorial permitió identificar mayor variación entre orígenes y menor entre lotes, donde el café del Peñol puntuó más alto y el de Fredonia más bajo.  El perfil de volátiles permitió identificar 14 compuestos químicos, la mayoría asociados a los descriptores de café tostado y unos pocos diferenciadores del perfil sensorial. El perfil químico fue consistente entre los lotes de Fredonia y se observó una mayor variabilidad para Peñol y Urrao. Se destaca que la técnica instrumental puede potencialmente identificar variaciones más sutiles que la sola evaluación sensorial. Aun considerando la misma genética y el mismo proceso de poscosecha, las variables agroecológicas de cada región afectan de forma significativa la manifestación de las propiedades sensoriales y de calidad.
Parent Experiences of Child Loss and End-of-Life Care in a Pediatric Intensive Care Unit: Protocol for a Qualitative Study (Preprint)
Authors: Alcón Nájera Sara , González-Gil Maria Teresa
Published: December 2022

BACKGROUND

Death of a child in the pediatric intensive care unit is a rare event that can occur after failed cardiopulmonary resuscitation efforts, after a brain death diagnosis, or after a decision to limit therapeutic efforts. Nevertheless, even in the case of children with terminal and progressive illnesses, death is a crisis that comes as a surprise to parents and is perceived as unexpected. In the final stage of a child’s life, health care staff play a key role in sharing feelings and experiences with the family and in supporting them throughout the process in order to facilitate the grieving process.

OBJECTIVE

The aim of this study is to explore the experiences of parents whose children have died in a pediatric intensive care unit.

METHODS

To address the study aims, a qualitative phenomenological study based on the van Manen proposal will be carried out. The study will be conducted in the pediatric intensive care unit of a tertiary care hospital. The study population will be parents or guardians (older than 18 years) of children who have died in the unit at least 6 months prior to potential participation in the study. Purposive sampling will be used to ensure sample diversity in relation to experiential variables. Families will be initially contacted by letter sent alongside the standard letter of condolences from the hospital, and then recruited in a subsequent telephone call. The sample size will be determined by data saturation. In-depth interviews will be conducted individually or in pairs. Parents will decide when, how, and where to conduct the interviews, which will be transcribed verbatim and examined using thematic discourse analysis.

RESULTS

This study was awarded a grant in December 2020 and was approved by the Medical and Health Research Ethics Committee on December 21, 2020. Data collection started in April 2021, and the results are expected to be published in 2023.

CONCLUSIONS

This project is intended to maintain, strengthen, and build on a particular line of research on end-of-life care with a focus on effective coping, spiritual well-being, and the adaptive grieving process. The results will contribute to establishing action guidelines that are both based on the discourses of parents who have experienced the death of a child and geared toward high-quality end-of-life care through dignified death and adaptive grief management.

CLINICALTRIAL

INTERNATIONAL REGISTERED REPORT

DERR1-10.2196/43756
Coronary slow flow research: a bibliometric analysis (Preprint)
Authors: Tong Jing , Bei Gui-Guang , Zhang Li-Bo , Yang Ben-Qiang
Published: December 2022

BACKGROUND

The studies on coronary slow flow are receiving increasing attention, but objective evaluation of the publications is still lacking. Thus, a bibliometric analysis is required to reflect the characteristics and development of publications on coronary slow flow.

OBJECTIVE

The purpose of this study was to visualize the current status and research hotspots of coronary slow flow with bibliometric analysis.

METHODS

All relevant publications on coronary slow flow during 2003 to 2021 were extracted from the Web of Science Core Collection database and analyzed by VOSviewer and CiteSpace visualization softwares. Years, journals, countries/regions, institutions, authors and research hotspots were identified.

RESULTS

A total of 847 publications were retrieved. The journals with the largest publication volume were Coronary Artery Disease and International Journal of Cardiology. The country/region with the largest publication volume was Turkey, followed by the United States and China. The institution with the largest publication volume was European Union of Research Universities. Meanwhile, the author with the largest publication volume was Mustafa Cetin from Turkey. Keyword analysis results indicated that treatment and prognosis, diagnosis and pathogenesis, and risk factors were the clustering centers of coronary slow flow, and the research hotspots gradually changed with the progress of time, from pathogenesis to treatment and prognosis.

CONCLUSIONS

The direction of future research involves the search for effective and noninvasive detection indicators and treatments of coronary slow flow. Collaboration needs to be enhanced between different institutions or countries/regions, which would improve clinical outcomes for patients with coronary slow flow.
Mindcraft, a Mobile Mental Health Monitoring Platform for Children and Young People: Development and Acceptability Pilot Study (Preprint)
Authors: Kadirvelu Balasundaram , Bellido Bel Teresa , Wu Xiaofei , Burmester Victoria , Ananth Shayma , Cabral C C Branco Bianca , Girela-Serrano Braulio , Gledhill Julia , Di Simplicio Martina , Nicholls Dasha , Faisal A  Aldo
Published: December 2022

BACKGROUND

Children and young people's mental health is a growing public health concern, which is further exacerbated by the COVID-19 pandemic. Mobile health apps, particularly those using passive smartphone sensor data, present an opportunity to address this issue and support mental well-being.

OBJECTIVE

This study aimed to develop and evaluate a mobile mental health platform for children and young people, Mindcraft, which integrates passive sensor data monitoring with active self-reported updates through an engaging user interface to monitor their well-being.

METHODS

A user-centered design approach was used to develop Mindcraft, incorporating feedback from potential users. User acceptance testing was conducted with a group of 8 young people aged 15-17 years, followed by a pilot test with 39 secondary school students aged 14-18 years, which was conducted for a 2-week period.

RESULTS

Mindcraft showed encouraging user engagement and retention. Users reported that they found the app to be a friendly tool helping them to increase their emotional awareness and gain a better understanding of themselves. Over 90% of users (36/39, 92.5%) answered all active data questions on the days they used the app. Passive data collection facilitated the gathering of a broader range of well-being metrics over time, with minimal user intervention.

CONCLUSIONS

The Mindcraft app has shown promising results in monitoring mental health symptoms and promoting user engagement among children and young people during its development and initial testing. The app's user-centered design, the focus on privacy and transparency, and a combination of active and passive data collection strategies have all contributed to its efficacy and receptiveness among the target demographic. By continuing to refine and expand the app, the Mindcraft platform has the potential to contribute meaningfully to the field of mental health care for young people.
Appeal of Editor-in-Chief
Authors: Grygorieva N.V.
Published: December 2022

No abstract
Use of High-Pressure Processing to Improve the Redness of Dark-Cutting Beef
Authors: Reesman Cole , Sullivan Gary , Danao Mary-Grace , Pfeiffer Morgan , More Sunil , Mafi Gretchen , Ramanathan Ranjith
Published: December 2022

The objective was to evaluate the effects of high-pressure processing (HPP) levels on retail color of dark-cutting beef. Eight USDA Choice (mean pH=5.5; normal-pH beef) and 12 dark-cutting (mean pH=6.3) strip loins were obtained from a commercial packing plant within 2 d of harvest. Dark-cutting loins were cut into equal sections, vacuum packaged,and randomly assigned to 0 (no HPP), 300, 450, and 600 MPa of pressure for 90 s using chilled water. Following 48 h of dark storage at 2°C, dark-cutting loin sections were cut into 1.9-cm-thick steaks, placed in Styrofoam trays overwrapped in polyvinyl chloride (PVC) film, and placed in a simulated retail display for 8 d. The surface color readings were measured every 24 h using a HunterLab MiniScan XE Plus spectrophotometer, whereas a trained color panel (n=6) evaluated dis-coloration, paleness, and lean color on steaks. Lipid oxidation was evaluated on day 0, 4, and 8 of retail display, and structural changes were determined using light microscopy on day 0 of display. There was a significant HPP level×day of retail display interaction for all instrumental color measurements. Throughout the retail display, L* values of 450 and 600 MPa applied steaks were greater (P<0.05) than 300 MPa and controls. There was a significant pressure level×day of retail display interaction when panelists evaluated lean color and discoloration. Steaks treated at 300 MPa exhibited brighter red color and lower (P=0.0023) thiobarbituric acid reactive substance values than other pressure levels and normal-pH control steaks. Light microscopy analysis indicated that HPP increased space between muscle structures. In conclusion, low (300 MPa) and moderate (450 MPa) pressure levels can improve redness of dark-cutting steaks.
Review on Molecular Modelling in Chemistry Education
Authors: Rajpoot Itendra Singh , Patel Hemant , Thakur Rahul Singh , Khare Basant , Jain Anushree , Jain Prateek Kumar , Thakur Bhupendra Singh
Published: December 2022

Molecular models derived from results of quantum-chemical calculations present an important category of didactic instruments in chemistry education. These models can be used especially as tools for supporting the students’ understanding by visual learning, which can adequately address complexity of many chemical topics, incorporate appropriate didactic principles, as well as utilize the benefits brought up by the actual information technology. The proposed molecular models are non-trivial examples of didactic application of computational chemistry techniques in illustration of electron interactions in amidic group, namely the interaction of the free electron pair on the nitrogen atom with the carbonyl group and also the interaction of atoms in the amide group with other surrounding atoms in the molecule. By these molecular models it is possible to explain acid-base properties of amides applying knowledge of electron density distribution in the molecules and the resulting electrostatic potential. Presentation of the structure and properties of the amides within education is important also for the reason that amidic functions are involved in many important natural substances (e.g. proteins, peptides, nucleic acids or alkaloids), synthetic macromolecular substances (e.g. Silon) or pharmaceutical preparations (e.g. paracetamol). This paper investigated the effect of using different types of models while teaching organic chemistry on student understanding of new concepts and the spatial structure of new molecules, as well as preference of a particular model type and illustrates the possibilities of computer-assisted molecular modelling in supporting chemistry teaching and learning.
Keywords: Molecular models, Acidity, Amides, Basicity, Electrostatic potential
Kombinasi sajian jepang & amerika dalam bentuk burger sushi
Authors: Suarnada I Gede Agus
Published: December 2022

“Fusion food” merupakan sebuah ide mengkombinasikan berbagai jenis makanan yang berasal dari gaya hidup yang mulai tumbuh di Negara eropa khususnya inggris dan amerika. Istilah fusion merupakan kombinasi bahan baku (ingridients) dan cara memasak (method of cooking) antara dua atau lebih makanan yang berasal dari berbagai belahan dunia. Penelitian ini bertujuanuntuk membuat hal baru dalam bidang kuliner dengan membuat fusion food antara sajian amerika dengan contoh makanan burger dan sajian jepang dengan contoh makanan sushi, guna mengurangi efek junk food burger yang tidak sehat menjadi sehat , dengan menggabungkan sajian sehat dari jepang yaitu sushi. Metode yang digunakan penelitian ini ada 3 yaitu : observasi, uji organoleptik, dan uji daya tahan. Uji organoleptik mengundang 10 panelis, 5 panelis ahli dan 5 panelis umum. Analisis data dari uji organoleptik yaitu rasa,aroma,tekstur,danwarna digunakan Desriptif kuantitatif berbasis organoleptik. Dan untuk uji daya tahan dilakukan dengan cara pengamatan dan diletakkan pada ruangan tanpa pengatur suhu dan ruangan pendingin. Hasil dari penelitian ini menunjukan bahwa produk mendapatkan nilai terbaik dari segi rasa,aroma,dan warna, sedangkan mendapat nilai kurang untuk bagian tekstur. Kesimpulan dari penelitian ini dari segi kualitas produk memiliki rasa yang gurih, aroma yang harum, tekstur yang kurang renyah, dan warna yang sangat menarik. Saran peneliti terkait dengan hasil penelitian dapat dilakukannya penelitian lebih lanjut tentang penelitian ini supaya mendapatkan hasil yang maksimal, dalam peluang bisnis diharapkan memiliki inovasi rasa yang unik agaragar bisa selalu menjadi daya tarik pembeli dan bisa bersaing dipasaran dengan produk yang serupa, dan memiliki strategi marketing yang baik
Analisis prosedur penyimpanan bahan makanan dimain kitchen sankara resort ubud
Authors: Pebriawan I Made Bagus
Published: December 2022

Dapur hotel merupakan tempat pengolahan makanan yang bertanggung jawab atas kualitas makanan yang akan disajikan kepada tamu. Terlebih dapur utama (main kitchen) yang terdapat di hotel- hotel besar berbintang lima. Berkaitan dengan hal tersebut penerapan prosedur penyimpanan bahan makanan yang baik dan benar sangatlah diperlukan, karena cara penyimpanan bahan makanan yang baik dan benar adalah kunci dihasilkannya makanan dengan kualitas yang bagus. Adapun tujuan dari penelitian ini untuk mengetahui penerapan prosedur penyimpanan bahan makanan di main kitchen Sankara Resort Ubud. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kualitatif. Aspek-aspek yang di bahas dalam penelitian ini meliputi pada temperatur, prinsip penyimpanan, pengaturan rak dan kebersihan dalam prosedur penyimpanan bahan makanan.Data yang digunakan dalam penelitian ini adalah data primer dan sekunder yang diperoleh dari hasil observasi dan wawancara. Berdasarkan penelitian tersebut, dapat disimpulkan bahwa penerapan prosedur penyimpanan bahan makanan belum terlaksanakan secara maksimal.Serta perlunya kesadaran yang lebih dari pegawai dalam menjaga kualitas bahan makanan serta pemilihan supplier harus lebih diperhatikan seperti memilih supplier yang terpercaya agar bahan makanan yang dipesan memiliki kualitas yang bagus.
The Impossibility of a Perfect Clock
Authors: Al-Suwailem Sami
Published: December 2022

A Perfect Clock is an algorithm that can perfectly identify programs
with a regular output from those with an irregular one. We argue that
such an algorithm may not logically exist.
Groundwater Through Geophysics: Review and Examples
Authors: Luiz José Gouvêa
Published: December 2022

Geophysics, when applied to the study of groundwater, is commonly used in searching for rocks, structures or geological environments that can allow the extraction of water. It can also be used to estimate physical aquifer characteristics (porosity and permeability); to indicate water potability parameters, such as the degree of salinity or the presence of contamination by polluting chemicals; and also to give information on the contaminant transport and ecosystem sustainability. These applications are discussed here and presented examples of the use of geophysics in the main geological environments of occurrence of groundwater. The objective of this article is to review and demonstrate the importance of the application of Geophysics in the groundwater study.
Application of ground-based high-throughput phenotyping platforms in cereal breeding – a review
Authors:   Latvia University of Life Sciences and Technologies, Jansone Zaiga , Bleidere Mara , Putniece Gundega ,   Latvia University of Life Sciences and Technologies
Published: December 2022

Cereals are the most widely grown crops in Europe, accounting for 53.8% of total crop area. Today’s farmers are facing serious challenges – climate change, resource scarcity and population growth, which can have a negative impact on the quantity and cost of agricultural production. It is therefore important to focus on the development of cereal breeding programmes and the introduction of new technologies, including High-Throughput phenotyping methods. The aim of this paper was to analyse the recent scientific literature on the current use of ground-based sensors applied in High-Throughput Phenotyping Platforms (HTPPs) for the assessment and analysis of morphological and physiological traits in cereals and for the selection of high-yielding genotypes. This enables the breeder to asses and identify genotypes of interest more quickly and accurately at different stages of plant development and in larger field and laboratory trials than with traditional breeding methods. The paper also provides information on the potential of using ground-based HTPPs, the most important methodological principles in setting up trials and measuring traits to ensure the accuracy of the assessments and the processing and interpretation of the results.
Internal decay assessment using drilling resistance in mature common alder (Alnus Glutinosa (L.) Gaertn.) Stands
Authors:   Latvia University of Life Sciences and Technologies, Bleive Alise , Liepins Janis ,   Latvian State Forest Research Institute ‘Silava, Liepins Kaspars ,   Latvian State Forest Research Institute ‘Silava
Published: December 2022

The occurrence of wood decay in common alder stems (Alnus glutinosa (L.) Gaertn.) was studied based on data obtained in seven matured stands in Latvia age ranging from 65 to 122 years. The study was intended as a pilot study to test the possible use of nondestructive micro-drill (Rinntech Resistograph® R650) for detection of the different stages of wood decay within common alder stems. The drilling profiles were visually compared with the wood samples obtained from increment borer or cross-cut sections at actual drilling height. The study confirmed initially proposed hypothesis that drilling profiles obtained using the Resistograph enabled the diagnosis of the common alder stem health condition. Wood decay stages – spongy rot and cavity can be detected successfully by the Resistograph; however, this non-destructive method does not detect discoloration in the wood, which is the earlier stage of wood decay. We found significant (p<0.05) positive correlation between decay occurrence and some of examined forest stand characteristics such as mean stand diameter, stand age and mean tree volume. The tree inspection showed that the preservation of old common alder stands can lead to a significant loss of wood quality. Based on this pilot study, we conclude that if the economic interests are prioritized in management of studied stands, the reduction of actual harvesting age of the common alder stands have to be considered.
Analysis of single server finite buffer queue under discouraged arrival and retention of reneging
Authors: Medhi Pallabi , Choudhury Amit
Published: December 2022

Queuing models where arrival rates go down consequent to increase in the number of customers are called systems with discouraged arrivals. Discouraged arrivals are distinct from balking in the sense that balking implies that arriving customers do not join. In this paper, we model a single server finite buffer Markovian queuing model with discouraged arrival, balking, reneging and retention of reneged customers. The steady state probabilities are obtained using Markov process method. Closed form expression of traditional as well as some freshly designed performance measures are presented. We also perform sensitivity analysis to examine the variations in performance measures with the variations in system parameters. Our results are numerically illustrated through a field level problem with design connotations.
Pemanfaatan Video Pembelajaran Matematika Berbasis Kontekstual Learning untuk Meningkatkan Pemahaman Konsep Bangun Ruang Siswa Kelas VI SD
Authors: Wahyuni Ni Putu Candra Oka , Agustika Gusti Ngurah Sastra
Published: December 2022

Keterbatasan pemahaman guru dalam membuat media pembelajaran serta sulitnya mengajarkan konsep matematika saat pembelajaran daring menyebabkan pemahaman siswa terhadap materi masih kurang dan berdampak pada hasil belajar siswa yang menjadi menurun. Penelitian bertujuan untuk menciptakan media berupa video pembelajaran matematika berbasis kontekstual learning pada mata pelajaran matematika kelas VI SD. Jenis dari penelitian ini yaitu menggunakan model ADDIE. Subjek yang terdapat pada penelitian ini yaitu para ahli yang terdiri dari 1 orang ahli isi pembelajaran, 1 orang ahli desain dan media pembelajaran, serta siswa kelas VI yang terdiri dari 3 orang uji coba perorangan, dan 9 orang uji coba kelompok kecil. Metode pengumpulan data yang digunakan yaitu observasi, angket, dan wawancara. Teknik analisis data yang digunakan yaitu deskriptif kuantitatif dan kualitatif. Hasil dari penelitian ini diperoleh dari hasil review uji kelayakan produk dari para ahli dan siswa yaitu dari ahli isi pembelajaran memperoleh skor 91,66% dengan kualifikasi sangat baik, ahli desain pembelajaran memperoleh skor 93,75% dengan kualifikasi sangat baik, ahli media pembelajaran memperoleh skor 94,23% dengan kualifikasi sangat baik, uji coba perorangan memperoleh skor 94,44% dengan kualifikasi sangat baik, uji coba kelompok kecil memperoleh skor 93,97% dengan kualifikasi sangat baik. Jadi, video pembelajaran berbasis kontekstual learning pada mata pelajaran kelas VI SD layak diterapkan dalam kegiatan pembelajaran. Implikasi dari penelitian ini yaitu video pembelajaran ini dapat digunakan untuk meningkatkan pemahaman belajar matematika siswa serta dapat dijadikan sebagai inovasi oleh guru dalam mengembangkan media pembelajaran.
Indonesian Textbook Based on Character Education Through Active Learning for the Elementary School Students
Authors: Winarni Retno , Slamet St Y , Syawaludin Ahmad
Published: December 2022

The lack of success in learning Indonesian in fifth-grade elementary schools is dominant in the low productive language skills. The limitations of learning resources such as textbooks are one of the causes of the emergence of these problems. This study aims to develop Indonesian language textbooks containing character education through the Active Learning model by utilizing literature as a learning resource. The type of research used is development research with the following stages: exploration, model development, and model testing. The subjects of this research were the fifth-grade elementary school students at the exploration stage, as many as 30 students. At the development stage, as many as 56 students and as many as 165 students at the testing stage. Data was collected through documentation studies, observations, interviews, and questionnaires. The data analysis technique was conducted qualitatively using an interactive model at the exploration and product development stages. The statistical analysis used an independent sample t-test at the model test stage. The test begins with prerequisite analysis and hypothesis testing. The research results at the exploration stage showed that the textbooks used were not by the needs of elementary school students and teachers, then a needs analysis and development of a textbook prototype were carried out. At the stage of testing the effectiveness with the main field trial, it showed a difference between the experimental and control groups. The study concludes that Indonesian language textbooks are stated to improve student's language skills in elementary school. The use of textbooks is recommended to support effective language learning.
The Implementation Profile of The Science Literacy Movement in Elementary Schools
Authors: Yasa I Made Wiguna , Budi Wijaya I Komang Wisnu , Indrawan I Putu Oktap , Muliani Ni Made , Darmayanti Ni Wayan Sri
Published: December 2022

The Science Literacy Movement was programmed by the Ministry of Education and Culture in 2017. In fact, the scientific literacy of Indonesian students is still in the low category, still below the average PISA completeness score. Based on these problems, it is important to understand the Science Literacy Movement in schools, especially elementary schools. This study aims to analyze the process, quality, and constraints of the implementation of the Science Literacy Movement in Elementary Schools. This research is classified as a mixed method. The mixed research design used by the researcher is an explanatory design. The subject of this research is the Science Literacy Movement program in each educational unit in the research location. The research instrument used was an evaluation questionnaire on the implementation of the Science Literacy Movement and interview guidelines. Data were analyzed descriptively. The results of the study stated that all schools had implemented the Science Literacy Movement but had not touched all aspects of the Science Literacy Movement; the quality of the implementation of the scientific literacy movement in schools as a whole is good; and the constraints experienced related to the Covid-19 pandemic situation, limited budget, limited infrastructure, low learning motivation, and lack of guidance from various parties. The implication of this research is that the Science Literacy Movement needs to be done holistically and creatively so that it can be implemented in offline and online learning.
The Impact of Problem-based Learning Models on Social Studies Learning Outcomes and Critical Thinking Skills for Fifth Grade Elementary School Students
Authors: Dharma I Made Aditya , Lestari Nyoman Ayu Putri
Published: December 2022

Critical thinking skills are needed in social studies learning, but the fact is that students' critical thinking skills in elementary schools are not optimal, so that it has an impact on student learning outcomes under the KKM. This study aims to analyze the effect of the problem-based learning model on learning outcomes and students' critical thinking skills. This type of research is quantitative research with a quasi-experimental and the design used is posttest only control group design. The population in this study were fifth grade elementary school students. Random sampling was used to determine the sample, while the total sample size was 68 students from two different schools. To test the hypothesis, one-way ANOVA and Manova analysis were used. The test results show that there is an effect of problem-based learning on social studies learning outcomes and students' critical thinking skills. So, it can be concluded that the problem-based learning has a significant effect on improving social studies learning outcomes and students' critical thinking skills compared to using conventional learning models. The implication of this research is that teachers are expected to be able to implement this problem-based learning model in the learning process, so that it can improve students' ability to understand subject matter easily and quickly during the learning process.
Android-Based Digital Teaching Materials on the Topic of Changes in the Shape of Elementary School Class V Objects
Authors: Juniari Ni Kadek , Margunayasa I Gede
Published: December 2022

The teaching materials available in schools are not for the needs of students. The teaching materials used in schools are only copies of student books so that in the learning process, students do not get additional information. The purpose of this development research is to develop android-based digital teaching materials on changing the shape of objects in grade V elementary school. This type of research is the development of the ADDIE research model. The research subjects were 2 learning media experts, 2 learning content experts, and 2 teachers. The test subjects were 10 students. The data collection method used is a questionnaire. The instrument used in collecting data is a questionnaire. The data analysis technique is descriptive qualitative and quantitative analysis. The results of the research are media validity is very good, material validity is very good, the practicality of practitioners/teachers is very good, and student practicality is very good. The results showed that android-based digital teaching materials on the topic of changing the shape of objects in class V elementary schools were categorized as suitable for use in the learning process on changing objects in class V elementary schools.
STEM-Based Everyone is a Teacher Here Strategy on Metacognitive Abilities
Authors: Averina Levina Syafaa , Mayarni
Published: December 2022

The low quality of education have an effect quality of the nation. One of efforts to improve quality of education in Indonesia involve metacognitive abilities. The component of cognitive regulation in metacognitive will make the students mind systematic. This study aims to analyze the STEM-based learning strategy everyone is a teacher here on metacognitive abilities. The type of this research  was a quasi experimental design with a pre-test and post-test control group design. The amount of data sample of this research is 103 students of fifth grade and the research sample amount is 55 students. The research instrument used has been through validity and reliability tests. Data analysis used in this study were normality test (Kolmogorov-Smirnov) and hypothesis testing (Wilcoxon test and Mann Whitney test).The result showed an increase in metocnitive abilities outcome that can be seen based on the result of pre-test and post-test, experiment class and control class. It was proven in testing the hypothesis, which states that value Asymp. Sig (2-tailed) 0,047 < 0,05 which means Ho is accepted and Ha is rejected. So it can be conclude that learning using the STEM-based learning strategy of everyone is a teacher here is effective in incrase the metacognitive abilities of students. Through STEM-based learning strategy everyone is a teacher here, metacognitive abilities can be enhanced based on soft skill, hard skill and creativity in building knowledge in the science learning process throught the water cycle and impact on living beings.
Comparison of Two Learning Models on Students' Process Skills in Elementary School
Authors: Kamid  , Roseli Theis  , Sufri  , Sabila Eka Septi  , Fhadira Insani Putri
Published: December 2022

The learning model is one of the most important things in the learning and learning process. A good learning model will make students more enthusiastic in learning because the model is interesting and effective. The purpose of this study was to analyze the comparison of learning models of problem based learning and problem solving models with student problem solving on cube and block material on the skill process in elementary schools. The method used in this study is a quantitative method with a comparative type. The population of this study was 72 students from two schools, included 40 women and 32 men as students, were the subjects studied. The instruments used are student process skills observation sheets and learning questionnaire models. Data collection techniques used in this study were questionnaires and observation sheets. The data analysis technique used is purposive sampling. The results of the description can be said that based on the T test it can be said that the problem-solving learning model is superior to the problem-based learning model. From the results of the T test for the learning model of students' science process skills, it can be seen that there are differences in the learning model.
Pelaksanaan Pembelajaran Tatap Muka Terbatas pada Satuan Pendidikan Anak Usia Dini
Authors: Widyasanti Ni Putu , Suastika I Nengah , Ariyana I Komang Sesara
Published: December 2022

Pelaksanaan pembelajaran daring menimbulkan banyak permasalahan pada pihak-pihak yang terkait, seperti permasalahan guru dengan orang tua serta dengan siswa. Berdasakan aturan yang diamanatkan oleh pemerintah serta mempertimbangkan kondisi lingkungan sekitar. Tujuan penelitian ini untuk menganalisis pelaksanaan pembelajaran tatap muka terbatas di tingkat Pendidikan Anak Usia Dini. Desain penelitian yang digunakan dengan metode studi kasus dengan menggunakan pendekatan deskriptif kualitatif. Data diperoleh dari wawancara dan dokumentasi yang dilakukan kepada lima belas guru Pendidikan anak usia dini. Terdapat tiga tahapan analisis data yang dilakukan dalam penelitian deskriptif kualitatif, yaitu tahap reduksi data (data reduction), tahap paparan data (data display), dan tahap penarikan simpulan dan verifikasi data. Hasil penelitian mengenai pelaksanaan pembelajaran tatap muka terbatas satuan PAUD menyangkut kesesuaian pelaksanaan pembelajaran terhadap aturan yang dikeluarkan pemerintah, perencanaan, pelaksanaan dan penilaian dalam pembelajaran yang dilakukan oleh guru. Guru memanfaatkan media pembelajaran berupa alat permainan edukatif yang digunakan siswa di tempat duduk masing-masing, siswa belum diijinkan mengggunakan media pembelajaran outdoor. Penilaian dilakukan guru dengan metode observasi, catatan anekdot, unjuk kerja, dan portofolio, berkaitan dengan keenam aspek penilaian perkembangan anak usia dini. Seluruh kegiatan pembelajaran tatap muka terbatas dilaksanakan dengan tetap mengikuti protokol kesehatan yang dianjurkan pemerintah.
Pengembangan Karakter Anak Usia Dini Melalui Pembelajaran Inovatif
Authors: Hartawan I Made
Published: December 2022

Kemampuan dan potensi anak PAUD belum berkembang dengan baik. Hal ini dikarenakan belum adanya kerjasama yang baik antara guru dan orang tua. Penelitian ini bertujuan untuk mengalisis tingkat kebutuhan pengembangan karakter anak usia dini melalui pembelajaran inovatif di TK. Jenis penelitian merupakan jenis penelitian dan pengembangan (research and development). Subjek penelitian adalah guru dan anak didik. Tehnik analisis data yang dilakukan adalah menganalisis data deskriptif dan kepraktisan. Hasil penelitian menunjukkan bahwa tingkat kebutuhan pengembangan Karakter Anak Usia Dini melalui Pembelajaran inovatif di Di TK dapat digambarkan masih kurangnya pemahaman dari para pendidik, khususnya guru akan pentingnya membentuk karakter anak usia dini. Gambaran bentuk desain pengembangan pengembangan karakter anak usia dini melalui pembelajaran inovatif terdiri atas dua komponen yakni komponen filosofi model dan komponen pelaksanaan model. Komponen filosofi model meliputi rasionalitas, tujuan, peran guru dan dukungan sistem. Sementara komponen operasional model dijabarkan secara rinci pada semua jenis kegiatan dengan tema yang berbeda. Tingkat validitas isi dan kepraktisan Pengembangan Pengembangan Karakter Anak Usia Dini melalui pembelajaran inovatif di TK menunjukkan bahwa penilaian validator dari semua perangkat dapat dinyatakan valid untuk digunakan. Maka, pengembangan karakter anak usia dini melalui pembelajaran inovatif memenuhi aspek praktis sehingga layak digunakan.