bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimasi Selulase pada Enzyme Assisted Extraction Lemak dari Caulerpa Lentillifera Menggunakan Response Surface Methodology
Authors: Hanifah Ishmah 
Published: April 2021

Penelitian dirancang untuk mengetahui kondisi optimum proses enzyme assisted extraction lemak rumput laut hijau segar Caulerpa lentillifera dengan menggunakan enzim selulase. Proses optimasi dilakukan menggunakan Response Surface Methodology (RSM) model Central Composite Design dengan 15 perlakuan. Perlakuan yang didapatkan untuk mengetahui pengaruh variabel bebas diantaranya konsentrasi enzim, suhu hidrolisis, dan waktu hidrolisis terhadap respon yaitu jumlah ekstrak lemak dan aktivitas antioksidan. Dari hasil penelitian didapatkan model 2FI dan Linier berturut-turut untuk respon jumlah lemak dan aktivitas antioksidan. Kondisi optimum yang diperoleh yaitu konsentrasi enzim sebesar 2%, suhu hidrolisis sebesar 30 °C, dan waktu hidrolisis selama 1 jam. Kondisi optimum tersebut kemudian dapat diverifikasi dengan melakukan perlakuan terpilih sebanyak 2 kali ulangan atau lebih hingga mendekati hasil prediksi. Asam lemak yang diperoleh setelah metilasi dan identifikasi dengan GC-MS yaitu asam palmitat dan asam laurat.
Menentukan Potensi Sumberdaya dan Daya Dukung Ekowisata Pulau Tunda, Kabupaten Serang Banten
Authors: Setyahandani Nindita Eka , Yulianda Fredinan , Yulianto Gatot 
Published: April 2021

Pulau Tunda memiliki sumberdaya alam pulau dan laut yang dapat dimanfaatkan untuk kegiatan wisata bahari. Sesuai rencana zonasi 2017, kajian mengenai potensi sumberdaya Pulau Tunda diperlukan untuk mengetahui kesesuaian dan daya dukung untuk kegiatan wisata pulau yang berbasis konservasi. Oleh karena itu, penelitian ini bertujuan untuk menganalisis kesesuaian dan daya dukung Pulau Tunda sebagai kawasan wisata pantai, mangrove, diving dan snorekling. Metode yang digunakan yaitu analisis spasial. Hasil analisis kesesuaian dan daya dukung menunjukan bahwa Pulau Tunda memiliki kategori sesuai (S2) peruntukan untuk wisata pantai, mangrove, diving dan snorkeling dengan nilai untuk wisata pantai sebesar 2.14, wisata mangrove 2, wisata diving 2.25 dan wisata snorkeling 2.43. Nilai total daya dukung untuk kawasan sebesar 1669 orang/hari.
PEMANFAATAN AIR LAUT MENJADI AIR TAWAR MENGGUNAKAN PRINSIP DESALINASI (STUDI KASUS : DESA PUNJULHARJO, KABUPATEN REMBANG)
Authors: Muhammad Fuad , Hidayat Jafron Wasiq , Solikhin  , Rusdiyanto Arizal , Devara Hafiz Rama 
Published: April 2021

Desa Punjulharjo Kabupaten Rembang merupakan salah satu daerah binaan dari Universitas Diponegoro yang berbatasan dengan laut jawa. Hal tersebut menyebabkan Desa Punjulharjo kesulitan untuk mendapatkan air bersih dari sumur. Kondisi sumur yang terletak di pesisir pantai menyebabkan air sumur tersebut berasa asin, yang menyebabkan warga Desa Punjulharjo harus menyuplai air dari daerah lain seperti mata air Gunung Kajar dan PDAM. Tujuan dari pelaksanaan program ini yaitu membuat contoh alat desalinasi yang dapat dijadikan sebagai alat yang dapat digunakan untuk kebutuhan perairan warga. Alat ini mempunyai fungsi yaitu mengubah air laut menjadi air tawar atau air bersih. Metode pelaksanaan yang dilakukan pada pengabdian ini berupa identifikasi masalah, penentuan prioritas masalah, dan perumusan program kerja. Dari permasalahan yang ada, tim pengabdian mecoba fokus pada pemasalahan yaitu pengolahan air laut menjadi air tawar. Permasalahan tersebut dicoba diatasi dengan cara menerapakan prinsip desalinasi pada alat yang akan digunakan. Alat desalinasi yang dihasilkan mempunya 3 bagian utama, yaitu kontruksi piramida, kontruksi lapisan penopang dan dinding transparan piramida. Untuk membuat ketiga bagian utama tersebut dibutuhkan bahan bahan seperti : Alumunium, kayu, bambu dan geo-membrane putih. Melalui kegiatan pengabdian kepada masyarakat ini, Masyarakat Desa Punjulharjo telah memiliki alat desalinasi untuk merubah air laut menjadi air tawar
OPTIMALISASI PENGELOLAAN DANA ALOKASI KHUSUS (DAK) UNTUK MENDORONG PERTUMBUHAN PEMBANGUNAN DAERAH DI INDONESIA
Authors: Sulaeman Agus Sunarya , Andriyanto Novi 
Published: April 2021

Desentralisasi fiscal di Indonesia akhir-akhir ini terus meningkat dari segi jumlah dananya. Salah satunya melalui transfer Dana Alokasi Khusus (DAK), selain Dana Bagi Hasil (DBH) dan Dana Alokasi Umum (DAU). Tujuan transfer ke daerah adalah untuk mendorong pemerataan dan pertumbuhan pembangunan di daerah. Penelitian ini bertujuan menguji dampak DAK yang terinci dalam berbagai bidang terhadap pertumbuhan Pembangunan daerah. Analisis data penelitian ini menggunakan Human Development Indexs untuk mengukur pertumbuhan pembangunan, dan menggunakan regresi data panel dari realisasi DAK kabupaten/kota per bidang se Indonesia, ditambah faktor pertumbuhan ekonomi, opini laporan keuangan, jenis pemerintah daerah dan lokasi daerah. Hasil analisis mengindikasikan bahwa dampak sebagian besar DAK bidang tertentu berpengaruh positif, sebagian lagi berpengaruh negatif, dan ada juga yang tidak berpengaruh. Dari Penelitian ini pengambil kebijakan dapat mencari langkah optimalisasi penyaluran dan penggunaan DAK dalam rangka desentrasisasi fiscal.
Upaya Pencegahan Tindak Pidana Korupsi Yang Berkaitan Dengan Keuangan Partai Politik Menjelang Pilkada 2020
Authors: Ashsyarofi Hisbul Luthfi 
Published: April 2021

Tujuan penelitian ini adalah untuk menganalisis transparansi dan akuntabilitas keuangan partai politik dalam pendanaan partai politik dan untuk menganalisis upaya pencegahan tindak pidana korupsi yang berkaitan dengan keuangan partai politik. Metode penelitian ini adalah penelitian normatif yang dilakukan meneliti bahan pustaka, yaitu aturan perundang-undangan sebagai bahan hukum primer. Berdasarkan hasil penelitian, urgensi dari transparansi dan akuntabilitas keuangan partai politik dalam pendanaan partai politik perlu dikelola secara akuntabel, transparan, dan profesional adalah pertama mendekatkan kepercayaan publik antara elite politik dengan masyarakat, kedua mendorong kepercayaan publik dan meningkatkan partisipasi publik dalam pemilu dan kebijakan publik ketiga membantu politik lebih akuntabel tidak hanya terkait masalah uang dan keuntungan materiil, keempat mencegah menerima money politic, kelima mencegah potensi penyelewangan dana publik dan, keenam mendorong persaingan kompetitif, ketujuh menguatkan penegakan hukum. Sebagai bentuk pencegahan tindak pidana korupsi maka keuangan partai politik yang bersumber dari anggota partai politik di umumkan secara terbuka kepada publik dan dilakukan pemeriksaan secara berkala oleh Badan Pemeriksa Keuangan (BPK) sehingga masyarakat bisa mengetahui besaran sumbangan dan asal usul keuangan partai yang bersumber dari anggota partai.
Dinâmica da incorporação de dispositivos administrativos em uma siderúrgica sobre a ótica do Institucionalismo
Authors: Castro Ana Cristina Gonçalves de , Bernardino Crystyane Ferreira , Araújo Uajará Pessoa 
Published: April 2021

A pesquisa teve o propósito de responder a seguinte questão: qual teria sido a dinâmica de sentidos dos conceitos (dispositivos) administrativos “Gestão de Riscos”, “Responsabilidade Socioambiental” e “Governança Corporativa”, captados das evidenciações contidas nos Relatórios de Administração de uma siderúrgica no Brasil, no caso, a ArcelorMittal Brasil S.A, ao longo de uma década? Para respondê-la, a investigação tomou a forma de estudo descritivo, com abordagem qualitativa e quantitativa, por meio de pesquisa documental de corte longitudinal, aplicando-se a técnica de análise de conteúdo. O universo da pesquisa compreendeu onze Relatórios da Administração, de 2007 a 2017, que foram tratados decompondo o material em categorias – para depois confrontar os achados, quando possível e apropriado, com documentação adicional da organização. Encontrou-se que, na empresa, o interesse de evidenciação dos dispositivos em estudo foi variável ao longo do período; os riscos tomaram quase que exclusivamente a feição de ameaças aos resultados; a responsabilidade socioambiental manteve-se associada à gestão da água, do ar, dos coprodutos, de energia e de CO2 bem como o trabalho seguro e algumas iniciativas nas áreas de educação, cultura, saúde e esporte; e a governança evoluiu ao longo do tempo, associando-se à disponibilização crescente de informações relativas ao processo de administração e às atividades operacionais e financeiras da organização.
Benefícios da Atividade Turística na Manutenção da Saúde da Terceira Idade
Authors: Vidal da Rocha Mirian Cristina , Luis da Silva Ricardo , Gabrig Oliveira Iramir , Faria Duarte Andre Luís 
Published: April 2021

Este trabalho buscou como objetivo geral uma reflexão sobre a forma como as atividades turísticas podem interferir positivamente na saúde física, mental e emocional da população chamada terceira idade. Os objetivos secundários foram descrever aspectos que promovam avanços saudáveis à população idosa e averiguar ações estatais e governamentais quanto à saúde desse mesmo público por meio do Ministério do Turismo. A pesquisa se desenvolveu, em sua maior parte, adotando o Google Acadêmico e SciELO como bases de dados, assim como artigos e livros já publicados e disponibilizados na internet. Foram checados ainda como o Estado atua, principalmente através de medidas do próprio ministério setorial, tendo a saúde e a economia como pano de fundo, com o objetivo de dar conta tanto de pressões do mercado turístico, quanto a essa nova realidade que é o envelhecimento, cada vez mais evidente da população Os resultados deixaram visíveis que as atividades de lazer como um todo tem importante papel na promoção e manutenção qualidade de vida e saúde de idosos. Além disso, fica claro que muito ainda precisa ser feito e deve ser lapidado nessa relação entre poder público, mercado e idosos.
Adomian polynomials method for dynamic equations on time scales
Authors: GEORGİEV Svetlin , ERHAN İnci M. 
Published: April 2021

In a recent paper, a series solution method based on combining the Laplace transform and Adomian polynomial expansion was proposed to
find an approximate solution of nonlinear differential equations \cite{FA2016}. It uses the expansion in Adomian polynomials defined in \cite {A1,A2}. An important drawback of the Laplace transform method is the fact that it cannot be applied in the case of nonlinear differential equation in general. In order to cope with this problem, the authors of \cite{FA2016} suggested the use of Adomian polynomial expansion of the nonlinear function of the dependent variable involved in the differential equation.

In this work, we propose a counterpart of this method on an arbitrary time scale and derive its general formulation for a dynamic equation of any order.
We confirm that when the time scale is the set of real numbers, our method reduces to that in \cite{FA2016}.

Our presentation is organized as follows. First, we recollect some preliminary information on time scales in Secton 2. In Section 3, we derive the method for an $n$-th order nonlinear dynamic equation. The next section contains the application of the method to specific examples of first order nonlinear dynamic equations. The last section is devoted to conclusion and some further directions for study.
Consumer Behaviour Dimensions in Selection of Undergraduate Management Specialization Courses in Nepal
Authors: Shrestha Shankar Kumar , Shrestha Bikash 
Published: April 2021

Tribhuvan University has designed their undergraduate BBA program by offering students the possibility to customize their educational program through the specialization in four different areas: banking & finance, industry and services management, micro enterprise management, and sales and marketing management. However, students have been specializing only in two courses namely: banking & finance, and sales and marketing. In this regard, the study aims at understanding the specialization choice of such students, as marketers need to be more aware of the underlying factors considered by students when choosing specialization and design the product offerings in this competitive market.
The study has the objective of examining the effect of various decision-making variables on the specialization choice of undergraduate students from a consumer behavior perspective.
„Nieziemsko piękna / we wszechświecie rana”. Figura homoseksualisty w wybranych wierszach Tadeusza Różewicza
Authors: Tomala Krystian Maciej 
Published: April 2021

Tadeusz Różewicz nie poświęca homoseksualizmowi naczelnego miejsca w swojej twórczości, warto jednak zwrócić uwagę na przewijający się w niej nietypowy model męskości, a zwłaszcza na postaci gejów. Przedmiotem zainteresowania autora będą dwa teksty Różewicza: Zakatrupiony oraz Tate Gallery Shop. W wierszach tych podniosła sztuka sąsiaduje z powszednim brudem i „gównem świata”. Zarysowujący się w utworach kontrast sprowadza problem do cielesności bohaterów i ukazuje ich seksualność jako rodzaj piętna. Nawiązania do estetyki kampowej nieoczekiwanie sąsiadują tu z turpistyczną brzydotą i fizjologią śmierci. Zainteresowanie Różewicza społecznym marginesem, dzięki zastosowanym „popowym” chwytom: technikom fragmentu i montażu, właściwym sztukom plastycznym i wizualnym, nawiązuje do malarskich i filmowych kontekstów wierszy, a także biografii bohaterów tych tekstów: Piera Paola Pasoliniego i Francisa Bacona, skutecznie zwracając uwagę odbiorcy na zajmujące poetę problemy współczesnego świata.
SEDIMENTATION ANALYSIS OF THE DISPERSED PHASE DURING TREATMENT OF PHENOLIC WASTEWATER OF COKE-CHEMICAL PRODUCTION BY GLAUCONITE
Authors: Ivanchenko A. , Khavikova K. , Voloshin M. 
Published: April 2021

Kinetic regularities of adsorption treatment of phenolic wastewater with glauconite have been revealed. It was found that glauconite at a dose of 2 g/dm3 in combination with a 0.1% solution of cationic flocculant, which provides removal of resinous substances up to 94% for 10 min and phenols up to 20% during 20 min. As a result, the MPC of phenols and resinous substances was achieved at the stage of mechanical treatment of effluents, which are then fed for biochemical processing into aeratanks, which is 415 mg/dm³ and 25 mg/dm3, respectively. The dispersed composition of sediments after treatment of industrial wastewater with glauconite was studied. It was found that the particle radii of the polydisperse system "liquid waste – glauconite" in combination with cationic flocculant were the largest and reached r = 537 mkm, which is twice the maximum polydisperse systems "liquid waste – glauconite" and "liquid waste – glauconite" with an anionic flocculant. Sedimentation analysis showed that the sedimentation time of the sediment decreased from 17 min to 6 min in the system "liquid waste – glauconite" in combination with cationic flocculant and formed a precipitate of loose flakes, which settled quickly. The introduction of a flotation plant with a dosage of natural glauconite 2 g/dm3 in combination with a 0.1% solution of cationic flocculant at industrial treatment facilities is proposed. Engineering solutions will improve the quality of wastewater supplied for coke quenching and will make it possible to transport and dispose of sludge after waste treatment with glauconite, which is planned to be used as a raw material for the manufacture of pavements in asphalt plants.
ABOUT THE CLUSTER MECHANISM OF WELDS CRYSTALLIZATION IN ARC WELDING OF METALS AND ALLOYS
Authors: Razmyshlyaev A. , Ahieieva M. , Shol T. 
Published: April 2021

In this work, the task was set to analyze the literature data on the cluster mechanism of crystallization of alloys in the field of foundry and metallurgical production and the possibility of its application for the process of crystallization of metal in a weld pool during arc welding and surfacing of metals and alloys. Literature data have shown that the cluster mechanism of their crystallization is widely used to explain many properties of castings and ingots in metallurgical production. It is shown that the previously used diffusion mechanism of crystallization of melts of steels and alloys, that is, the mechanism of crystal growth as the attachment of atoms of a substance from the melt to the solid phase (substrate), does not stand up to criticism. However, this old approach is used in all work on weld solidification in electric arc welding and surfacing. The same approach has always been used in works devoted to the study of the effect of magnetic fields (MF) during arc welding on the refinement of the weld structure. In modern research in the field of foundry and metallurgical industries, it is assumed that there are already clusters in the molten metal. Clusters are centers of crystallization. The process of crystallization of melts is represented as the attachment to larger crystals (clusters) of smaller ones. Earlier it was found that the refinement of the structural components of the weld metal during welding under the influence of MF occurs at the stage of their primary crystallization.
Surfacing was performed without and with the influence of a control alternating transverse magnetic field with a frequency of 6 Hz. At the same time, in the structure of the bead deposited with the action of the field, a 2-fold grain refinement was observed. This refinement of the structure of the deposited metal occurred during its primary crystallization. It was assumed that this happened by the cluster crystallization mechanism.
ASSESSMENT OF CARCINO¬GENIC RISK TO PUBLIC HEALTH FROM AIR POLLUTION WITH FORMALDEHYDE IN THE CITY OF ZAPORIZHZHYA
Authors: Belokon K. , Matukhno O. 
Published: April 2021

The city of Zaporizhzhya is one of the most technologically advanced cities in Ukraine with significant scientific, technical and production potential. The city's industry is based on the metallurgical complex, which has a great influence on the state of the atmospheric air. This problem is of particular relevance in the Zavodskoy and Voznesenovsky districts of the city with a significant concentration of ferrous and non-ferrous metallurgy enterprises, which certainly emphasizes the relevance of solving issues of protecting the health of the population living in these areas.
The article examines the assessment of the carcinogenic risk to the health of the population of the Zavodskoy and Voznesenovsky districts from the impact of formaldehyde emissions.
The composition of emissions from stationary sources of industrial enterprises contains a variety of chemical compounds, of which the most common are suspended matter (aerosols, dust), carbon monoxide (II), nitrogen oxide (IV), formaldehyde and others. Their ingress into the human body leads to a deterioration in health, damage to organs and systems, the occurrence of chronic diseases.
The results of calculations of the individual and population carcinogenic risk to the health of the population in Zavodskoy and Voznesenovsky districts under acute and chronic exposure indicate an average level of risk (10-4<ICR<10-3), that is, acceptable for professional groups and unacceptable for the general population, typical for most large industrial cities. The emergence of such a risk requires the development and implementation of planned health measures.
Comparing the average individual carcinogenic and population levels of risk to public health in the two study areas with acute and chronic exposure, it can be noted that the level of carcinogenic risk in Voznesenovsky district is higher than in Zavodskoy.
FORECASTING EMERGENCY SITUATIONS AND THE DEVELOPMENT OF ACCIDENTS IN THE STORAGE OF LIQUEFIED HYDROCARBON GASES
Authors: Makhovskyi V. , Kriukovska O. , Romaniuk R. 
Published: April 2021

In recent years, there have been fundamental changes in the industry due to a change in the structure the use of primary energy resources. For most the developed countries of the world, one the components of changes in industry was the emergence and constant increase in the share of chemical, fire and explosive technologies and industries using liquefied gases, primarily hydrocarbons – propane, butane, ethylene, butylene, propylene and others.
The aim of the work is to analyze possible emergency situations at the storage facilities of liquefied hydrocarbon gases and predict possible scenarios for the development of accidents in the places of their storage, as well as develop recommendations for the prevention of these dangerous situations.
The main reason for the leakage of the tank is mechanical or corrosive wear, as well as errors of operating and maintenance personnel. Other reasons (pressure exceeding critical values, accidents at neighboring blocks, natural factors, etc.) that can lead to a leakage of the storage facility with liquefied gases are less likely, but they cannot be completely excluded. A salvo leak a large amount of vapors liquefied petroleum gases is unlikely due to the underground location of the tanks.
Considering the reasons for the violation of the tightness the pipeline with liquefied hydrocarbon gases, it should be noted that a large pressure value is not created in the pipeline during its operation, which can lead to a violation of the tightness the pipeline along the pipe body. Therefore, the most probable violation of the tightness the pipeline as a result the departure of technological parameters beyond the critical values ​​should be considered a violation the tightness of flange connections and stuffing box seals of valves. Violation of the tightness the pipeline due to corrosive wear is most likely as a result of external factors affecting the pipeline (atmospheric phenomena). It is impossible to predict the extent of the leakage and their location.
Thus, a detailed analysis the causes of the occurrence were carried out and a probable scenario the development of accidents at the storage of liquefied hydrocarbon gases was considered. A logical diagram of the occurrence and development of accidents has been built. Recommendations have been developed for the prevention of emergency situations at storage facilities of liquefied hydrocarbon gases and the actions of employees in case their occurrence.
MULTI-FACTOR HEAT EXCHANGER DESIGN MODELS
Authors: Klimov R. , Lusta E. 
Published: April 2021

Compressed air is widely used in enterprises, and it is possible to reduce air consumption on pneumatic devices by heating. Most often, heating is carried out in shell-and-tube heat exchangers. To increase the area of heat exchange between the heating medium and the air, finned tubes are used, which can significantly reduce the volume occupied by the heater. The design of the heater is influenced by many factors, and the importance of the influence of each of them can differ significantly. It is advisable to use the overall characteristic in the form of a compactness factor, which shows the ratio of the heat exchange area to the volume of the heater.
The work developed a method for determining the optimal design of heaters by such a parameter as the compactness factor. The obtained regression equations make it possible to determine the influence of such factors as the number of rows of tubes across the flow and the length of one tube on the volume occupied by the heat exchanger and the compactness factor. According to Fisher's criterion, the equations of the model are adequate to the true dependence with a confidence level of 95%. Most of all, the volume of the heat exchanger and the compactness are affected by the number of tubes transverse to the air flow. Changing the length of one tube does not fundamentally affect the obtained values of the output parameters. With an increase in the length of one tube and their number across the flow, it is possible to achieve the highest values of the compactness coefficient, the dependence of which on the main factors has a pronounced maximum.
Using the developed technique, it is possible, in a fairly simple formulation, to analyze the value of the compactness factor for various combinations of the above factors and to optimize the design of the heater.