bluuebunny/crossref_metadata_2025_split huggingface dataset:
Kinetic Parameters Determination Of Glucoamylase On Hydrolysis Reaction Of Sagoo Starch (Metroxylon sp)
Authors: Bandjar Adriani , Tanasale Matheis F.J.D.P. , Luhukay Maher S. 
Published: August 2024

Sagoo plant (Metroxylon sp.) numerous in eastern Indonesia, such as Maluku and Papua. Sagoo starch containing amylose and amylopectin. Sagoo starch hydrolysis can be carried out by enzymes, such as glucoamylase or often called amiloglukosidase or α-1 ,4-glukanoglukohidrolase, an extracellular enzyme capable hydrolyzes α-1, 4 on amylose and α-1, 6 in amylopectin. The enzymatic hydrolysis of starch can be reviewed in the kinetics of the Michaelis-Menten equation and Lineweaver-Burk equation. The aims of this study to determine the kinetic parameters (Vmax and Km) of glucoamylase on hydrolysis of sagoo starch. Glucoamylase has an optimum temperature of 50 oC and pH optimum 6.5. At optimum conditions, based on Michaelis-Menten equation, the value of Vmax is 1.09 U/mL/min and Km value is 0.82. Based on Lineweaver-Burk equation, the value of Vmax was 1.03 U/ mL/min and Km value was 0.84%.
Complexation of 5,5,7,12,12,14-Hexamethyl-1,4,8,11-Tetraazayclotetradeca-7,14-Dienium Bromide With Copper Acetate In Methanol And Aqueous Solutions
Authors: Yamin Bohari M. , Kadir Aisyah , Yusoff Siti F. M. 
Published: August 2024

5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclodeca-7,14-dienium bromide disolvate ((Me6N4H4)Br2.2H2O) is a 14-membered deprotonated tetraaza macrocyclic salt. Its neutral analogues and their complexes were prepared by templation method under refluxed condition since it was discovered by Curtis in 1961. However, the present diprotonated tetraaza salts react with many metallic salts in both methanolic and aqueous solutions. The complexation involved deprotonation of the diagonally opposite protonated amines and the type of metal salt and solvents also play an important role in the final complex formation. The complexation of (Me6N4H4)Br2.2H2O with copper acetate in methanol and aqueous solutions gave the expected complex of [Cu((Me6N4H2)Br]Br.2H2O. Pseudo-first order condition for the complexation reaction in water was established.
Analisis Kadar Logam Kadmium (Cd) dan Timbal (Pb) pada Sedimen Di Teluk Ambon Bagian Dalam
Authors: Male Yusthinus T , Malle Dominggus , Bijang Catherina Manukpadang , Fransina Eirene Grace , Seumahu Cecelia Anna , Dolaitery Lois Mikhal , Landu Sartika , Gaspersz Nelson 
Published: August 2024

The research about analysis of cadmium (Cd) and lead (Pb) metal content on sediment inner part of Ambon Bay has been done. Sampling point located at Dermaga Ferry Poka, PLTD Poka, Kate-kate, Waiheru, Lateri III, Passo dan PLTD Galala. The results of analyzed of sediment particle size inside the Ambon Bay showed 3 components were sand, gravel, and sludge, but the sediments was dominated by sludge sand. Analysis of Cd content showed that at 7 stations in Ambon Bay detected Cd metal with the highest concentration at 4th station of Waiheru village was 0,6640 mg/Kg and the lowest concentration at 3th station of Kate-kate village was 0,0980 mg/Kg. Meanwhile, the highest Pb content was 20,075 mg/kg at 4th station and the lowest was 5,755 mg/kg at 2nd station of PLN Poka. The content of elements composition of sediment are SiO2, K2O, P2O5, Fe2, BaO, NiO and Ga2O3 but Cd and Pb metal was not detected.
Waktu Optimum Hidrolisis Pati Limbah Hasil Olahan Ubi Kayu (Manihot esculenta Crantz var. Lahumbu) Menjadi Gula Cair Menggunakan Enzim Î±-Amilase Dan Glukoamilase
Authors: Ardiansyah Ardiansyah , Nurlansi Nurlansi , Musta Rustam 
Published: August 2024

This study aims to determine optimum time of action of the enzyme Î±-amylase and glucoamylase needed in hydrolyze of starch from waste processed cassava (Manihot esculenta Crantz var. Lahumbu). This research was conducted through three main stages, namely the gelatinization, liquefaction and saccharification. The method was used method are liquefaction and saccharification. The variation time of the stage liquefaction: 12; 24; 36; 48; 60; and 72 minutes and the saccharification stage are: 9; 18; 27; 36; 45; 54; and 63 hours. The results showed that the optimum time required for stage liquefaction using Î±-amylase enzyme is 48 minutes on the condition of a temperature of 80 oC with a value of 0.09% amylose levels were measured using UV-Vis spectrophotometer. The optimum time required for saccharification step using a glucoamylase which is 54 hours on the conditions of a temperature of 50oC with the amount of reducing sugar concentration of 9.186 g/L as measured using a UV-Vis spectrophotometer.
Isolasi Kitosan Dari Tudung Jamur Merang (Vollvariella Volvaceae) Dan Aplikasinya Sebagai Absorben Logam Timbal (Pb)
Authors: Tanasale Matheis F.J.D.P. , Bandjar Adriani , Sewit Natasya 
Published: August 2024

Chitosan isolated from mushroom (Vollariella volvaceae) as adsorbent of lead (Pb) metal has been done. The isolation of chitosan was obtained 2.94% from total weight of mushroom. Fungtional groups of chitin and chitosan were indentified by using FTIR spectrophotometry. The chitosan had 74.66% degree of deacetylation and 2.09 x 104 g/mol viscosity molecular weight. The experimental data of the chitosan as adsorbent for Pb metal were correlated with the Langmuir and Freundlich isotherm model. The maximum adsorption capacity of Pb based on the Langmuir isotherm model was 2.66 mg/g.
Study Microstructure of Fe3O4 Modification Using PEG 4000 form Iron Sand at Wari Ino Beach As A Biosensor Application
Authors: Kurnia Kurnia , Kaseside Meidy , Iwamony Steven 
Published: August 2024

Fe3O4 encapsulated PEG form iron sand at wari ino beach has been successfully synthesized by co-precipitation method. The average particle size of the nanoparticle 11,3 nm was determined by scherrer formula. Fe3O4 modification PEG 4000 was successfully encapsulated the samples by the presence C-O-C and CH bonding that were characterized using Fourier Transform Infra Red (FTIR), X-Ray Diffraction (XRD) pattern shows that all samples are formed by single phase cubic spinel magnetite , and Scanning Electron Microscopy (SEM) shows the high dispersion capability while encapsulated process using PEG. The results of the characterization show that the Fe3O4 successfully encapsulated by PEG 4000.
Pengaruh Implementasi Good Government Governance Pada Kualitas Pelayanan Publik (Studi Pada Pemerintah Daerah Di Indonesia)
Authors: Sari Shinta , Yudianto Ivan , Mulyani Sri 
Published: August 2024

Penelitian ini bertujuan untuk menganalisis pengaruh implementasi government governance pada kualitas pelayanan publik. Penelitian menggunakan pendekatan penelitian kuantitatif dengan menggunakan data sekunder dari laporan penyelenggaraan pemerintah daerah tahun 2022. Hasil penelitian menunjukkan bahwa dari 5 prinsip good government governance yang diadopsi dari prinsip yang dikeluarkan oleh KNKG, transparansi, akuntabilitas, budaya hukum serta kesetaraan dan kewajaran berpengaruh secara signifikan dan positif pada kualitas pelayanan publik pada tingkat signifikansi 10%. Sedangkan prinsip demokrasi tidak berpengaruh signifikan pada kualitas pelayanan publik pada tingkat signifikansi 10%. Namun secara simultan, good government governance terhadap kualitas layanan publik menunjukkan koefisien jalur sebesar 0.813 dengan p-value sebesar 0.000. Ini berarti bahwa good public governance memiliki pengaruh signifikan dan positif terhadap kualitas pelayanan publik pada tingkat signifikansi 10%.

Kata Kunci: Good Government Governance, Kualitas Pelayanan Publik
Pemanfaatan Digital Marketing pada UMKM untuk Pertumbuhan Ekonomi Lokal di Desa Kerjen, Kabupaten Blitar
Authors: Kartika Sari  , Ekawaty Marlina , Badriyah Nurul 
Published: August 2024

Abstract
The development of information technology can encourage local economic activities in the community, namely entrepreneurial activities. By utilizing information technology, MSME players can increase market share through digital technology. Therefore, the focus of this service activity is socialization regarding the use of digital marketing in Kerjen village, Blitar Regency. This service activity was carried out in two stages, namely socialization regarding the use of digital marketing and focus group discussions to find out the problems faced by MSME players. From the results of the Focus Group Discussion, it is known that the main goods/products produced by the majority of residents in this village are of course related to the agricultural sector, such as fruits, namely oranges, vegetables, rice, corn, eggs and fertilizer. Apart from the agricultural sector, Kerjen village also has a developed livestock sector such as goats and cattle. However, the MSMEs in Kerjen village are experiencing problems in marketing their products. From the results of service activities, it is known that (i) MSME actors have not fully utilized digital marketing in marketing their products (ii) Some MSME actors who use digital marketing can further increase their market share.
Keywords: MSMEs, digital, economic growth, local economy

Abstrak
Perkembangan teknologi informasi dapat mendorong kegiatan ekonomi lokal masyarakat yaitu kegiatan berwirausaha. Dengan memanfaatkan teknologi informasi maka pelaku UMKM dapat meningkatkan pangsa pasar melalui teknologi digital. Oleh karena itu, focus dari kegiatan pengabdian ini adalah sosialisasi terkait pemanfaatan digital marketing di desa Kerjen, Kabupaten Blitar. Kegiatan pengabdian ini dilakukan melalui dua tahap yaitu sosialisasi terkait pemanfaatan digital marketing dan focus group discussion untuk mengetahui permasalahan yang dihadapi oleh pelaku UMKM. Dari hasil dari Focus Group Discussion diketahui bahwa Barang / produk utama yang dihasilkan oleh mayoritas warga di desa ini tentunya berkaitan dengan sektor pertanian seperti buah-buahan yaitu jeruk, sayur mayur, padi, jagung, telur maupun pupuk. Selain sektor pertanian, di desa Kerjen juga tergolong maju sektor peternakannya seperti ternak kambing, sapi.Namun, pelaku UMKM desa Kerjen ini mengalami kendala dalam hal pemasaran produknya ini. Dari hasil kegiatan pengabdian diketahui bahwa (i) Pelaku UMKM belum sepenuhnya memanfaatkan digital marketing dalam memasarkan produknya (ii) Beberapa pelaku UMKM yang menggunakan pemanfaatan digital marketing dapat lebih meningkatkan pangsa pasarnya.
Методологічні аспекти використання акустичних датчиків у системах ситуаційної обізнаності про повітряну обстановку
Authors: Сідченко С. О. , Лещенко С. П. , Бурковський С. І. , Батуринський М. П. , Цюпка П. Р. 
Published: August 2024

У статті розроблені методологічні аспекти створення систем акустичного моніторингу прольоту засобів повітряного нападу (АМПЗПН) та їх інтеграції в систему ситуаційної обізнаності про повітряну обстановку (спеціальне програмне забезпечення “Віраж-Планшет”). Серед нових перспективних альтернативних джерел інформації про повітряну обстановку застосовуються акустичні датчики. Тож, автоматизований збір, аналіз, відображення та обмін інформацією від акустичних датчиків про прольоти засобів повітряного нападу противника в інформаційних (автоматизованих) системах є актуальним науково-технічним завданням. Проведено аналіз стану справ з розробки систем АМПЗПН в Україні. Зазначено, що серед проектів таких систем можна відмітити системи “еРакета” та “Звук”. Запропоновані загальні вимоги до їх побудови, наведено варіант структурної схеми їх побудови. Зазначено, що найскладнішим та найголовнішим при розробці системи АМПЗПН є розробка підсистеми розпізнавання акустичного сигналу та класифікації повітряного об’єкта. При цьому, дана підсистема повинна мати повну базу даних портретів акустичних сигналів засобів повітряного нападу противника. Показано, що на роботу перспективних систем АМПЗПН суттєво впливає швидкість розповсюдження звукових хвиль у порівнянні зі швидкістю повітряних об’єктів. Проведено аналіз часових затримок, що можуть виникати в системах ситуаційної обізнаності про повітряну обстановку при виявленні засобів повітряного нападу. В середньому вони складають 29 секунд при дальності виявлення 10 км. За цей час крилата ракета пролітає в середньому від 5,83 км до 7,84 км, а безпілотний літальний апарат – 1,14 км. При використанні функціоналу перевірки інформації (модерації подій) оператором системи часові затримки збільшуються. Кожна хвилина обробки збільшує дальність прольоту крилатої ракети від 12 км до 17,45 км, а безпілотного літального апарата – 2,34 км. Розроблено загальну схему та протокол отримання (видачі) інформації про повітряну обстановку від системи АМПЗПН противника в систему ситуаційної обізнаності про повітряну обстановку “Віраж-Планшет”.
Cryptocurrency as a New Object of Forensic Economic
Authors: Vinogradova M. M. 
Published: August 2024

The article examines a new object of forensic economic examination – cryptocurrency. The author provides classic definitions of an object of forensic examination and establish the differences of cryptocurrency from the traditionally understood objects of both forensic examination in general and economic examination in particular. The main difference of cryptocurrency from other currencies and objects of investigation is its virtual nature, lack of affiliation with the material world. Two main points of view on the essence of cryptocurrency are analyzed: as a basis and tool for the development of new effective forms of payments, exchange of goods, and as an object and instrument of criminal activity. A definition of cryptocurrency is given as interpreted by the FATF – Financial Action Task Force. It is identified which issues related to the circulation of cryptocurrency can be attributed to the competence of a forensic expert-economist, and which – to the field of computer forensics. The author also describes the features of cryptocurrency that must be taken into account when considering it as an object of forensic economic examination.
USO DO SOLO NA SUB-BACIA DO RIBEIRÃO DA PRATA, LENÇÓIS PAULISTA - SP
Authors: Leda Victor Costa , Nicolete Donizeti Aparecido Pastori , Sartori Anderson Antônio da Conceição , Pezzoni Filho José Carlos , Zimback Célia Regina Lopes 
Published: August 2024

O uso e cobertura do solo possui influência na quantidade e qualidade da água em bacias hidrográficas, com isso as técnicas de geoprocessamento possibilitam analisar os padrões de ocupação do solo. Neste contexto o presente trabalho teve como objetivo identificar e quantificar os processos de mudanças no uso e ocupação do solo por meio de análise temporal, nos anos de 1984 e 2014. A área de estudo compreende a sub-bacia do Ribeirão da Prata, que está localizada no município de Lençóis Paulista, estado de São Paulo, para o mapeamento do uso e ocupação do solo foram utilizadas imagens orbitais dos satélites Landsat 5 e Landsat 8. As análises de mudanças foram realizadas através do módulo Land Change Modeler - LCM, o qual possibilitou obter relações de ganho, perda e persistência da vegetação nativa. Os resultados obtidos mostraram que houve um incremento na área de vegetação nativa, e também o predomínio da cana-de-açúcar para o período analisado, indicando que apesar das atividades agrícolas serem intensas na região, houve uma melhora em termos de conservação ambiental na sub-bacia estudada. Palavra-chave: Sensoriamento remoto, vegetação nativa, dinâmica espaço-temporal. LAND USE IN SUBBASIN OF RIBEIRÃO DA PRATA, LENÇÓIS PAULISTA - SP ABSTRACT The use and coating of soil influence the quantity and quality of water in watersheds. For this reason, the geo processing techniques allow analyses of soil occupation patterns to be made. This paper aims to identify and quantify, through temporal analysis, the change processes of soil use and occupation in the years of 1984 and 2014. The area of study comprises the subbasin of Ribeirão da Prata, which is located in Lençóis Paulista city, in São Paulo state. For mapping the soil’s use and occupation, orbital images were utilized from the satellites Landsat 5 and Landsat 8. The change analyses were conducted through the “Land Change Modeler” module (LCM), which made it possible to obtain relationships of gain, loss and constancy of the native vegetation. The results show that there has been an increase on the area of native vegetation, as well as a predominance of sugar cane for the analyzed period. This suggests that despite the agricultural activities in the area, there has been an improvement in terms of environmental conservation in the referred subbasin. Keywords: Remote sensing, native vegetation, spatial-temporal dynamic. DOI: http://dx.doi.org/10.14583/2318-7670.v02n03a08
POTENCIAL DE Eucalyptus grandis COMO FACILITADORA DA REGENERAÇÃO NATURAL
Authors: Turchetto Felipe , Fortes Fabiano de Oliveira , Callegaro Rafael Marian , Mafra Charles Rodrigo Belmonte 
Published: August 2024

O potencial de regeneração de espécies nativas sob plantios florestais homogêneos é considerado um fator importante para a manutenção da diversidade e da riqueza de espécies florestais nativas. Dessa forma, esse estudo teve por objetivo avaliar a regeneração natural no sub-bosque de um povoamento de Eucalyptus grandis, localizado no município de Frederico Westphalen, RS. Foram instaladas 10 parcelas de 10 m x 10 m, nas quais foram mensurados todos os indivíduos com altura igual ou maior que 1 m. As espécies amostradas foram distribuídas em classes de altura e diâmetro e classificadas quanto a classe sucessional e síndrome de dispersão, sendo calculado o índice de diversidade de Shannon. No total foram amostrados 414 indivíduos, a florística da área inclui 32 espécies distribuídas em 20 famílias e 30 gêneros. A família Myrtaceae, apresentou a maior riqueza de espécies, sendo que Prunus myrtifolia e Sebastiania commersoniana foram as espécies com maior número de indivíduos. O índice de diversidade de Shannon foi estimado em 2,36 nats.ind.-1. A regeneração natural mostrou-se diversa, com predomínio de espécies heliófilas (pioneiras e secundárias iniciais), evidenciando que o povoamento de Eucalyptus grandis atuou como facilitadora da regeneração natural. Palavras-chave: Floresta Estacional Decidual, restauração florestal; diversidade de espécies. POTENTIAL OF Eucalyptus grandis AS FACILITATOR OF NATURAL REGENERATION ABSTRACT:The potential of regeneration of native species under homogeneous forest planting is considered an important factor for the maintenance of the diversity and the wealth of native forest species. Thus, this study aimed to evaluate the natural regeneration of the underbrush of an Eucalyptus grandis stand, located in the municipality of Frederico Westphalen, RS. There were installed 10 parcels of 10 m x 10 m, in which there were measured all the individuals with equal or higher height than 1 m. The sampled species were distributed in height classes or diameter classes and classified in relation to the successional class and dispersal syndrome. There were calculated the indexes of Shannon diversity and of Pielou evenness. In total, there were sampled 414 individuals; the floristic of the area includes 32 species distributed in 20 families and 30 genera. The Myrtaceae family, presented the greatest richness of species, and the Prunus myrtifolia and Sebastiania commersoniana were the species with greater number of individuals. The index of Shannon diversity was estimated in 2.36 nats.ind.-1. The natural regeneration showed itself diverse, with predominance of initial and later secondary species, highlighting that the stand of Eucalyptus grandis performed as facilitator of natural regeneration. Keywords: Deciduous Forest, forest restoration; species diversity. DOI: http://dx.doi.org/10.14583/2318-7670.v03n04a05
METODOLOGIA NÃO DESTRUTIVA PARA QUANTIFICAÇÃO DO VOLUME E BIOMASSA DO FUSTE EM REMANESCENTE FLORESTAL
Authors: Nicoletti Marcos Felipe , Silva Ezequiel , Pitz Floriani Mireli Moura 
Published: August 2024

Nesse trabalho objetivou-se propor uma metodologia não destrutiva para quantificação de volume individual, biomassa e carbono do tronco em um remanescente florestal. O estudo foi feito em cinco parcelas de 600 m². As variáveis dendrométricas mensuradas foram diâmetro à altura do peito (DAP), altura total (h), diâmetro ao longo do fuste conforme o método de Smalian. Para cada árvore mensurou-se os diâmetros de forma indireta com o dendrômetro Criterion RD 1000 e comparou-se com a mensuração de forma direta com a suta. Determinou-se o volume, biomassa e carbono por parcela. O erro relativo médio encontrado nas medidas do diâmetro foi de 10%, para o volume individual, o erro médio subestimado foi de 20% e para biomassa e carbono o erro foi subestimado em aproximadamente 15%. Portanto, a metodologia de quantificação indireta do volume, e da biomassa e do carbono pode ser considerada aceitável, frente às dificuldades de obtenção dessas informações em remanescentes naturais. Palavra-chave: carbono, criterion, cubagem não destrutiva. NON-DESTRUCTIVE METHODOLOGY FOR QUANTIFYING VOLUME AND STEM BIOMASS IN FOREST REMNANTS ABSTRACT The aim of this study was to propose a non-destructive method for quantification the individual volume, stem biomass and carbon in trees in the forest remnant. The survey was done in five plots of 600 m². The variables measured were diameter at breast height (DBH), total height, stem diameter of standing trees by Smalian method. Every tree was measured the diameters indirectly with the Criterion RD 1000 dendrometer and compared with the measurement directly with the caliper. It was determined volume, biomass and carbon for plot. The average relative error found in the measurements of the diameter was 10%, the individual volume obtained an average error underestimated in 20%, the biomass and carbon were error underestimated in approximately 15%. Therefore, the non descrutive methodology to quantification the volume, biomass and carbon can be considered acceptable given the difficulty which is to obtain information on natural remnants. Keywords: carbon, criterion, non-destructive measures. DOI: http://dx.doi.org/10.14583/2318-7670.v03n04a11 METODOLOGIA NÃO DESTRUTIVA PARA QUANTIFICAÇÃO DO VOLUME E BIOMASSA DO FUSTE EM REMANESCENTE FLORESTAL
MANEJO DE PRODUÇÃO EM FLORESTAS NATURAIS DA AMAZÔNIA: MITOS E VERDADES
Authors: Braz Evaldo Muñoz , Mattos Patrícia Póvoa de 
Published: August 2024

O manejo de florestas naturais é o único uso da terra que garante a manutenção da floresta. O número de árvores remanescentes atinge 88%. Apesar disto, é uma atividade penalizada na mídia como responsável pela destruição ou deterioração das florestas naturais. Além disso, pesquisas sobre manejo de florestas naturais, principalmente na Amazônia, muitas vezes se apoiam nestes mitos, produzindo pesquisas pontuais desconectadas com a realidade do manejo de “floresta de produção”. Este trabalho tem por objetivo apresentar, discutir e correlacionar os seguintes tópicos: a) restrições relativas ao aumento do ciclo em floresta de produção; b) questões referentes à estrutura inicial da floresta e c) sua capacidade de recuperação em volume pós-exploração; e d) a necessidade de se considerar diâmetros ótimos de corte para garantir um melhor incremento. Palavras-chaves: manejo de florestas naturais, ciclo de corte, estrutura remanescente. MANAGEMENT OF PRODUCTION FORESTS IN AMAZONIAN REGION: MYTHS AND TRUTHS ABSTRACTNatural forests management is the only land use that ensures the maintenance of the forest. Remaining trees may reach 88%. However this activity is indicted by media as responsible for forest destruction or deterioration. Moreover, researches regarding natural forests management in Amazon region are frequently supported by these myths, producing results unconnected with the reality of the "production forest" management. The objective of this work is to present, discuss and correlate a) constraints of increasing the cycle in a production forest; b) issues related to the initial structure of the forest c) the forest’s ability to recover timber volume post-logging; and d) the necessity of considering optimum logging diameter to ensure better increment. Keywords: natural forest management, cutting cycle, remaining structure. DOI: http://dx.doi.org/10.14583/2318-7670.v03n04a12