bluuebunny/crossref_metadata_2025 huggingface dataset:
Enforcement of Law of Copyright Infringement and Forgery with the Rise of the Digital Music Industry
Authors: Ariani Nevey Varida
Published: July 2021

The current pandemic situation encourages musicians to be productive in creating digital works such as songs and music so that their creative works can produce moral and economic values. However, infringement and forgery of digital music works are rampant. The issue of royalties is still a problem in the digital music industry in Indonesia, including new challenges to the role of aggregators and Collective Management Organization. The problem of this research is how the enforcement of the law of copyright infringement and forgery is with the emergence of the digital industry. This research used a qualitative method with a normative juridical approach. The results of the research showed that the increasing and complicated law enforcement related to digital music copyright is influenced by regulations such as complaint offense that hindered the law enforcement. The process of coordination and supervision between the Civil Servant Investigator (PPNS) of the Directorate General of Intellectual Property and other law enforcement officers needs to be improved. Law enforcement includes payment of compensation, termination of certain activities that cause harm to creators and owners of related rights, obligation to withdraw from circulation, revocation of business licenses, termination of business activities, and the last resort of ultimum remedium in the form of criminal sanctions. Dissemination of information and knowledge regarding IPR law and its derivative regulations including Government Regulation No. 50 Year 2021 carried out by the government is part of the legal protection of the society to increase public legal awareness in the digital era.
The Legal Force of Electronic Signatures in Online Mortgage Registration
Authors: Zainuddin Zainuddin , Ramadhani Rahmat
Published: July 2021

The legal force of electronic signatures in online mortgage registration activities is an important subject to study. Because basically the legal problems of electronic mortgage registration are also related to the validity of electronic signatures of persons who are not present before an LDO. Another issue that is important to study regarding the electronic signature in question is regarding the time limit of 7 (seven) days to register the Deed of Grant of Mortgage to the Land Registry Office. If it exceeds that time limit, the deed in question becomes null and void and it also causes sanctions against LDO. The research method used is normative juridical legal research that focused on two problems, namely; How is the legal force of electronic signatures in online mortgage registration? What are the legal problems of online mortgage registration? The results of the research showed that the Regulation of the Minister of Agrarian and Spatial Planning/the Head of National Land Agency Number 9 Year 2019 concerning Electronically Integrated Mortgage Services substantially has a tendency to contradict some of the regulations above it. Therefore, there is no detailed data protection relating to the securities registered in the electronic mortgage registration. Ignoring the time limit of 7(seven) days will also result in administrative sanctions up to the dismissal of the LDO who neglect their duties.
A biblioteca como instituição-campo do estágio supervisionado em ensino de química
Authors: Barbosa Fabiola Ferreira , Kasseboehmer Ana Cláudia , Mori Rafael Cava
Published: July 2021

Ao considerar, na formação inicial de professores de química, vivências não escolares, este texto trata da inserção de bibliotecas no estágio supervisionado. Este estudo de caso apresenta três momentos, espelhando as etapas do processo de conhecimento numa perspectiva crítico-dialética. O primeiro passo, empírico, narra como uma licencianda compreendeu o problema do “copiar-colar” nos trabalhos escolares. Isso ensejou o segundo passo, abstrato, conduzindo a conceitos sobre tipologia das bibliotecas, orientações sobre a organização desses espaços e analogias com museus. No terceiro passo, retornou-se à realidade concreta e elaborou-se um desenho de estágio com vivências em bibliotecas. A experiência gerou propostas para solucionar o problema previamente diagnosticado: incentivar estratégias de leitura no ensino de química, para orientar os estudantes nas pesquisas e no uso de bibliotecas; modificar salas de leitura, tornando-as mais atrativas para o estudante de química; e criar repositórios de trabalhos escolares de química
Estado de la cuestión y análisis jurídico de la Ley del Patrimonio Cultural Aragonés
Authors: Bernad Esteban Pilar
Published: July 2021

El trabajo es fundamentalmente un análisis jurídico y formal de la vigente Ley del Patrimonio Cultural Aragonés, es decir, la Ley 3/1999, de 10 de marzo, por lo que la principal fuente documental ha sido, obviamente, su corpus legal. Complementariamente, y para una mejor comprensión, se hace referencia a normativa europea, española y autonómica. Estas herramientas teóricas, que sirven para revelar diversos problemas esenciales, han sido utilizadas con el fin de observar la aplicación práctica, e indicar o advertir hasta qué punto se ha cumplido la Ley y sus objetivos. El propósito final es describir los aspectos positivos y mejorables, con especial hincapié en las deficiencias técnicas, los asuntos sin desarrollar, los que deberían estar presentes en una futura ley, y aquellos reseñables desde una perspectiva jurídica. Además se plantea una reflexión sobre el patrimonio cultural en Aragón, en particular, sus modificaciones más destacadas y las leyes que inciden en la regulación del patrimonio cultural en Aragón. El estudio de varias leyes autonómicas permite analizar los diferentes modelos y niveles de protección de los bienes, así como su categorización, todo lo cual es resumido a modo de propuesta. Finalmente, y como consecuencia de este examen, se extraen unas conclusiones.
Perbandingan Persepsi Berbelanja secara Online Antara Generasi X Dan Y
Authors: Indrajit Indrajit , Prayanthi Ika
Published: July 2021

Saat ini perkembangan teknologi yang pesat telah merubah prilaku para pelanggan khususnya dalam cara berbelanja dimana pembelian barang ataupun jasa dapat dilakukan dengan mudah melalui internet. Walaupun terdapat kemudahan yang ditawarkan oleh teknologi tersebut, masih terdapat sebagian segmen pelanggan yang masih enggan ataupun takut untuk menggunakannya.  Penelitian ini dibuat untuk mengetahui persepsi pelanggan dua kelompok generasi yakni generasi X dan generasi Y terkait kenyamanan dalam berbelanja secara online. Metode yang digunakan dalam penelitian ini adalah analisis deskriptif dan uji beda yakni independent sample t test yang bertujuan untuk mengetahui apakah terdapat perbedaan yang signifikan antara kelompok generasi X dan generasi Y jika ditinjau dari sisi kenyamanan berbelanja secara online. Terdapat 366 responden dalam penelitian ini. Hasil penelitian ini mendapati bahwa tidak terdapat perbedaan yang signifikan antara generasi X dan generasi Y ditinjau dari persepsi kenyamanan berbelanja secara online, kecuali untuk kategori terkait perhatian dari toko online dimana didapati generasi Y memiliki persepsi yang lebih baik dibandingkan dengan generasi X. Kata kunci— Berbelanja secara online, Generasi X, Generasi Y
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI MINAT BELI SECARA ONLINE MELALUI JEJARING MEDIA SOSIAL INSTAGRAM (STUDI KASUS PADA PRODUK FASHION)
Authors: Tatemba Indah Stefani , Rantung Rinny Cherill
Published: July 2021

Penelitian ini bertujuan untuk mengetahui faktor-faktor apa saja yang mempengaruhi minat beli secara online pada jejaring media sosial Instagram khususnya pada produk Fashion serta untuk mengetahui apakah ada perbedaan minat beli berdasarkan perbedaan gender yaitu pria dan wanita. Penelitan ini adalah penelitian kuantitatif-kualitatif yang menggunakan Exploratory Factor Analysis (EFA). Data yang digunakan dalam penelitian ini adalah data primer yang didapatkan dengan cara mengembangkan kuesioner. Untuk mendapatkan data yang dibutuhkan maka penelitian ini menggunakan 370 data responden dengan 24 item pernyataan yang telah melalui proses validasi. Hasil penelitian ini menemukan bahwa ada 4 faktor yang mempengaruhi minat beli secara melalui jejaring media sosial Instagram yaitu Faktor Sales Promotion, Faktor Customer Service, Faktor Visual Merchandising, dan Faktor Payment. Berdasarkan uji independent t-test ditemukan adanya perbedaan terhadap beberapa faktor yang mempengaruhi minat beli secara online melalui jejaring media sosial Instagram khususnya pada produk Fashion yaitu pada faktor sales promotion dan faktor visual merchandising yang menyatakan pria dan wanita memiliki preferensi mereka masing-masing khususnya pada kedua faktor tersebut.

Kata Kunci: Instagram, Media Sosial, Minat Beli, Toko Online
Harta dan Kepemilikan dalam Islam
Authors: Muthmainnah
Published: July 2021

Konsep mengenai harta dan kepemilikan merupakan salah satu pokok bahasan yang penting dalam Islam. Harta atau dalam bahasa arab disebut al-maal secara bahasa berarti condong, cenderung atau miring. Sedangkan secara istilah diartikan sebagai segala sesuatu yang sangat diinginkan oleh manusia untuk menyimpan dan memilikinya. Ibnu Najm mengatakan, bahwa harta kekayaan, sesuai dengan apa yang ditegaskan oleh ulama-ulama ushul fiqh, adalah sesuatu yang dapat dimiliki dan disimpan untuk keperluan tertentu dan hal itu terutama menyangkut yang kongkrit. Menurut para fuqaha, harta dalam perspektif Islam bersendi pada dua unsur; Pertama, unsur ‘aniyyah dan Kedua, unsur ‘urf. Unsur ‘aniyyah berarti harta itu berwujud atau kenyataan (a’yun). sebagai contoh, manfaat sebuah rumah yang dipelihara manusia tidak disebut harta, tetapi termasuk milik atau hak. Sedangkan unsur ‘urf adalah segala sesuatu yang dipandang harta oleh seluruh manusia atau oleh sebagian manusia, tidaklah manusia memelihara sesuatu kecuali menginginkan manfaatnya, baik manfaat yang bersifat madiyyah maupun ma’nawiyyah.
The effects of low-dose methylprednisolone as adjuvant therapy for hemophilia A patients with factor VIII inhibitors
Authors: Muhammad Faizal
Published: July 2021

Hemophilia A is an inherited bleeding disorder caused by factor VIII (FVIII) deficiency. In most minor-to-moderate bleeding events, FVIII concentrates therapy can result in significant lifesaving. However, chronic FVIII concentrates therapy can cause FVIII inhibitors synthesis and replacement therapy inefficacious. Immunosuppressive therapy can suppress FVIII inhibitors synthesis and make FVIII concentrates therapy more responsive. This study aims to determine the effects of low-dose methylprednisolone on acquired FVIII inhibitors. A randomized clinical trial was conducted on 11 hemophilia A male patients with high level of FVIII inhibitors. This pretest-posttest study design consists of intervention group (6 patients) who received 1 mg/bodyweight/day methylprednisolone, and control group (5 patients) received 100 mg/day sugar pill placebo for 6 weeks. Statistical analysis used independent t-test and paired t-test. Results showed significant FVIII inhibitors rising in pretest-posttest mean comparison of both intervention group (p = 0.001) and control group (p = 0.001). Further result showed inter-groups pretest mean comparison (p = 0.976) and inter-groups posttest mean comparison (p = 0.034). We conclude that low-dose methylprednisolone significantly suppresses the FVIII inhibitors synthesis pace within 6 weeks instead of inhibits the FVIII inhibitors synthesis.
Konsep Kepemilikan
Authors: Jannah Miftahul
Published: July 2021

Artikel ini menerangkan tentang konsep kepemilikan dalam Islam. Kepemilikan dalam hukum Islam merupakan ketentuan hukum serta kekuasaan seseorang atas apa yang dimilikinya. Pada prinsipnya, Islam tidak menghalangi wujud serta tipe usaha seorang buat mendapatkan kekayaan, dan tidak pula menghalangi usaha seorang untuk mendapatkan kepemilikan. Mengingat berartinya peninggalan dalam konstruksi ekonomi, dalam artikel ini cuma menerangkan makna kepemilikan secara universal serta dari sudut pandang Islam, tipe serta pengaruh kepemilikan dalam Islam terhadap pertumbuhan ekonomi Islam. Setelah itu diakhiri dengan kesimpulan semacam penutup artikel ini. Pemikiran Islam terhadap kepemilikan berbeda dengan kapitalisme serta sosialisme. Bagi pemikiran kapitalisme, harta tidaklah kepunyaan individu serta bukan pula kepunyaan bersama bagi sosialisme. Sebaliknya bagi pemikiran Islam harta merupakan kepunyaan Allah, sebab perihal tersebut ada dalam Al- Quran serta As- Sunnah. Konsep kepemilikan dalam Islam berasal dari sudut pandang manusia yang mempunyai kemauan buat memiliki harta individu, namun pula memerlukan partisipasi pihak lain dalam kehidupan sosialnya.
Jurnal Analisis Kinerja Keuangan PT Unilever Indonesia Tbk Tahun 2018-2020
Authors: Mus Ika Munarfah
Published: July 2021

Tujuan dari penelitian ini yaitu untuk mengetahui dan menganalisis kinerja keuangan PT Unilever Indonesia Tbk 2018-2020. Jenis data yang digunakan yaitu data kuantitatif. Analisis data yang digunakan deskriptif kuantitatif yaitu analisis data yang didasarkan pada perhitungan untuk mengetahui kinerja keuangan dalam bentuk rasio keuangan. Adapun rasio keuangan yaitu rasio likuiditas, rasio solvabilitas, rasio aktivitas, dan rasio profitabilitas.
Left-wing support of authoritarian submission to protect against societal threat
Authors: Winter Taylor , Jose Paul , Riordan Benjamin , Bizumic Boris , Ruffman Ted , Hunter John , Hartman Todd K. , Scarf Damian
Published: July 2021

New Zealand’s Prime Minister, Jacinda Ardern, adopted a “go hard, go early” approach to eliminate COVID-19. Although she and her Labour party are considered left-leaning, the policies implemented during the pandemic (e.g., police road blocks) have the hallmarks of Right-Wing Authoritarianism (RWA). RWA is characterised by three attitudinal clusters (authoritarian aggression, submission, and conventionalism). The uniqueness of the clusters, and whether they react to environmental change, has been debated. Here, in the context of the pandemic, we investigate the relationship between political orientation and RWA. Specifically, we measured political orientation, support for New Zealand’s major political parties, and RWA among 1,430 adult community members. A multivariate Bayesian model demonstrated that, in the middle of a pandemic, both left-leaning and right-leaning individuals endorsed items tapping authoritarian submission. Demonstrating the multidimensional nature of RWA, this change occurred at the same time the typical relationships between political orientation and authoritarian aggression and conventionalism was observed.
Índice biométrico integral para evaluar el crecimiento fetal
Authors: Sosa Olavarría Alberto , Álvarez Moya Eulolio
Published: July 2021

Evaluar el crecimiento fetal y sus desviaciones constituye un reto para el médico que usa la biometría fetal por ultrasonido para estimar la edad gestacional y el peso del feto, resultando que la predicción se aparta en ocasiones de la realidad. Objetivo. Procesar la data aportada por siete autores, aplicando una fórmula de índice biométrico integral, para confirmar la posibilidad de coincidencia entre todos los datos obtenidos. Métodos. Procesamiento de las medidas de circunferencia cefálica (CC), circunferencia abdominal (CA) y longitud del fémur (LF) según la edad gestacional publicadas por 7 autores, para calcular el índice biométrico mediante la fórmula [CAF= (CC + CA) - LF]. Resultados. Se obtuvieron las ecuaciones polinomiales de cada grupo de datos por separado y finalmente la data global, correlacionando los valores del índice y la edad gestacional, consiguiendo el coeficiente de correlación curvilínea, con R² = 0,99 (p < 0,05). Conclusiones. Se propone el índice integral de crecimiento fetal como una herramienta para verificar el crecimiento del feto mediante la evaluación secuencial, independientemente de la procedencia y características de la población en estudio.
A REVIEW OF FLOW CONFLICTS AND SOLUTIONS IN SOFTWARE DEFINED NETWORKS (SDN)
Authors: Khairi Mutaz Hamed Hussien , Ariffin PM. IR. DR. Sharifah  Hafizah Syed , Abdul  Latiff PROF. MADYA DR. Nurul Muazzah , Yusof DR. Kamaludin Mohamad , Hassan Mohamed  Khalalfalla
Published: July 2021

Software Defined Networks (SDN) are a modern networking technology introduced to simplify network management via the separation of the data and control planes. Characteristically, flow entries are propagated between the control plane layer and application or data plane layers respectively while following flow table instructions through open flow protocol. More often than not, conflicts in flows occur as a result of traffic load and priority of instructions in the data plane. Several research works have been conducted on flow conflicts in SDN to reduce the effect of conflict. The flow conflict solutions in SDN have three main limitations. First, the OpenFlow table may still cause a defect in the security module according to the priority and action matching in the open flow in the control plane. Second, flow conflict detection requires more time for flow tracking and incremental update, whereas in such a case, delay affects the efficiency of SDN. Besides, the SDN algorithm and mechanism have substantially high memory requirement for instruction and proper functioning. Third, most of the available algorithms and detection methods used to avoid flow conflicts have not fully covered the security model policy. This study reviews these limitations and suggest solutions as future open research directions.
ABSTRAK: Rangkaian Perisian Tertentu (SDN) adalah teknologi rangkaian moden yang diperkenalkan bagi memudahkan pengurusan rangkaian melalui pecahan data dan kawalan permukaan. Seperti biasa, aliran kemasukan disebar luas antara lapisan permukaan kawalan dan aplikasi atau lapisan permukaan data masing-masing, sambil mengikuti arahan meja melebar melalui protokol aliran terbuka. Kebiasaannya konflik dalam aliran berlaku disebabkan oleh beban trafik dan keutamaan arahan pada permukaan data. Beberapa kajian dibuat terhadap konflik aliran SDN bagi mengurangkan kesan konflik. Solusi konflik aliran dalam SDN mempunyai tiga kekurangan besar. Pertama, jadual Aliran Terbuka mungkin masih menyebabkan  kekurangan dalam modul keselamatan berdasarkan keutamaan dan tindakan persamaan dalam aliran terbuka permukaan kawalan. Kedua, pengesanan aliran konflik memerlukan lebih masa bagi pengesanan aliran dan peningkatan kemaskini, kerana setiap penangguhan memberi kesan terhadap kecekapan SDN. Selain itu, algoritma SDN dan mekanisme memerlukan memori yang agak besar bagi memproses arahan dan berfungsi dengan baik. Ketiga, kebanyakan algoritma dan kaedah pengesanan yang digunakan bagi mengelak konflik pengaliran tidak sepenuhnya dilindungi polisi model keselamatan. Oleh itu, kajian ini meneliti kekurangan dan memberi cadangan penambahbaikan bagi arah tuju kajian masa depan yang terbuka.
MODELLING A 1-DOF FINGER EXTENSOR MACHINE FOR HAND REHABILITATION
Authors: Shahdad Ifrah , Azlan Norsinnira Zainul , Jazlan Ahmad
Published: July 2021

It is essential to have an accurate representation of a robotic rehabilitation device in the form of a system model in order to design a robust controller for it. This paper presents mathematical modelling and validation through simulation and experimentation of the 1-DOF Finger Extensor rehabilitation machine. The machine’s design is based on an iris mechanism, built specifically for training open and close movements of the hand. The goal of this research is to provide an accurate model for the Finger Extensor by taking into consideration various factors affecting its dynamics and to present an experimental validation of the devised model. Dynamic system modelling of the machine is performed using Lagrangian formulation and the involved physical parameters are obtained experimentally. To validate the developed model and demonstrate its effectiveness, hardware-in-the-loop experiments are conducted in the Simulink-MATLAB environment. Mean absolute error between the simulated and experimental response is 1.38° and the relative error is 1.13%. The results obtained are found to be within the human motion resolution limits of 5 mm or 5º and exhibit suitability of the model for application in robotic rehabilitation systems. The model accurately replicates the actual behavior of the machine and is suitable for use in controller design.
ABSTRAK: Gambaran tepat mengenai model sistem peranti rehabilitasi robotik adalah sangat penting bagi pembangunan sesebuah reka bentuk alat kawalan tahan lasak. Kajian mengenai model matematik dan pengesahan melalui simulasi dan eksperimentasi mesin pemulihan 1-DOF ‘Finger Extensor’. Mesin ini direka bentuk berdasarkan mekanisme iris, dibangunkan khusus bagi melatih gerakan buka dan tutup tangan. Tujuan kajian ini adalah bagi menyediakan model Finger Extensor yang tepat dengan mengambil kira faktor mempengaruhi dinamik dan pengesahan model eksperimen yang dirancang. Model sistem dinamik mesin ini diuji menggunakan formula Lagrangian dan parameter fizikal yang terlibat diperoleh melalui eksperimen. Model ini disahkan dan diuji keberkesanannya menggunakan eksperimen Perkakasan-dalam-gelung melalui MATLAB-Simulink. Purata ralat mutlak antara dapatan simulasi dan respon eksperimen adalah 1.38° dan ralat relatif 1.13%. Dapatan kajian adalah dalam had resolusi gerakan tangan manusia iaitu 5 mm atau 5º dan didapati model ini sesuai bagi aplikasi sistem rehabilitasi robotik. Model ini tepat dalam mereplikasi kelakuan sebenar mesin dan sesuai digunakan bagi reka bentuk kawalan.
Investigating the reliability of shear strength equations in TS500 and ACI318-19
Authors: Gullu M. Fethi , Mohammed F. Saleh
Published: July 2021

Lateral loads (e.g., wind and earthquake loads) lead to shear forces as well as the axial loads and moments on the structural members. Although reinforced concrete (RC) columns are commonly assumed as slender members and are not expected to represent shear dominant response characteristics, experimental studies have shown that even slender columns have shear responses. Hence, in seismic design, the shear strength of columns must be accurately predicted to prevent shear failure of columns. Validation of Requirements for Design and Construction of RC structures (TS500) for shear strength calculation of RC columns by a broad range of test data has been neglected in the literature. In this study, 57 test results of rectangular RC columns were collected from available laboratory tests to verify the shear strength calculation approach in TS500. Additionally, a statistical comparison of results obtained from TS500 with Building Code Requirements for Structural Concrete (ACI318-19) has been studied in this study. Maximum shear strength of RC columns obtained from the previously studied test data was compared with shear strengths calculated according to TS 500 as well as with the results obtained from ACI318-19. Comparisons are scrutinized in terms of shear-span-to-depth ratios, reinforcing ratios, material properties, and stirrup spacing as well as axial load ratios applied on top of the columns. Investigation of existing design equations reveals a significant difference in prediction. This study will be extended by adding further test results from the literature to provide crucial comments about the shear strength calculation of RC columns in TS500.
Catalytic conversion of isopropyl alcohol on the heteropolic acid –titanium oxide system
Authors:   Azerbaijan State Oil and Industry University, Guseinova E.A. , Adzhamov K.Yu. ,   Azerbaijan State Oil and Industry University, Yusubova S.E. ,   Research Institute “Geotechnological problems of oil, gas and chemistry”
Published: July 2021

A complex of modern physicochemical methods (X-ray phase analysis, low-temperature adsorption of nitrogen, scanning electron microscopy, element analysis)was used to studythe phase and texture properties of the phosphomolybdenum heteropoly acid–titanium oxide catalytic system. It was found that the optimal content of phosphomolybdenum heteropoly acid, which leads to an increase in the catalytic activity of titanium dioxide, is 7% wt.: the diisopropyl ether yield is higher,it reaches maximum values in a shorter period of time, and the samples are characterized by greater stability. It is shown that the textural characteristics of the specific surface area and dispersion are not the key factors responsible for the catalytic activity.It has been suggested that the activity of phosphomolybdenum heteropoly acid-containing samples is associated with the emergence of a new type of active centers that exhibit increased electron-donorproperties(terminal oxygen atoms of the outer frag-ments of octahedra М = О heteropolyacids). A drop in the catalytic activity of samples with a phosphomolyb-denum heteropoly acid content of more than 7% wt. associated with the formation of surface metaphosphoric acid and entails a decrease in active centers.
Prepared 13X Zeolite as a Promising Adsorbent for the Removal of Brilliant Blue Dye from Wastewater
Authors: Barno Suondos K. A. , Mohamed Haider J. , Saeed Siham M. , Al-Ani Mohammed J. , Abbas Ammar S.
Published: July 2021

The research discussed the possibility of adsorption of Brilliant Blue Dye (BBD) from wastewater using 13X zeolite adsorbent, which is considered a byproduct of the production process of potassium carbonate from Iraqi potash raw materials. The 13X zeolite adsorbent was prepared and characterized by X-ray diffraction that showed a clear match with the standard 13X zeolite. The crystallinity rate was 82.15% and the crystal zeolite size was 5.29 nm. The surface area and pore volume of the obtained 13X zeolite were estimated. The prepared 13X zeolite showed the ability to remove BBD contaminant from wastewater at concentrations 5 to 50 ppm and the removal reached 96.60% at the lower pollutant concentration. Adsorption measurements versus time showed 48.18% removal of the dye during just the first half-hour and the maximum removal closest to the removal at the equilibrium after one and half hour. Langmuir isotherm was described the adsorption equilibrium data with a maximum adsorption capacity of 93.46 mg/g and the kinetics data of the adsorption process was followed the pseudo-second-order.
Advanced Study of Promoted Pt /SAPO-11 Catalyst for Hydroisomerization of the n-Decane Model and Lube Oil
Authors: Aljendeel Haider , Hussein Hussein Qasim
Published: July 2021

SAPO-11 is synthesized from silicoaluminophosphate in the presence of di-n-propylamine as a template. The results show that the sample obtained has good crystallinity, 396m2/g BET surface area, and 0.35 cm3/g pore volume. The hydroisomerization activity of (0.25)Pt (1)Zr (0.5)W/SAPO-11 catalyst was determined using n-decane and base oil. All hydroisomerization experiments of n-decane were achieved at a fixed bed plug flow reactor at a temperature range of 200-275°C and  LHSV 0.5-2h-1.  The results show that the n-decane conversion increases with increasing temperature and decreasing LHSV, the maximum conversion of 66.7 % was achieved at temperature 275°C and LHSV of 0.5 h-1. Meanwhile, the same catalyst was used to improve base oil specification by increasing viscosity index and decreasing pour point. The isomerization reaction conditions, employed are temperature (200-300)ºC, the liquid hourly space velocity of 0.5-2h-1, and the pressure kept atmospheric. The present study shows that Pt Zr W/SAPO-11 minimizes the pour point of lubricating oil to -16°C at isomerization temperature of  300°C and LHSV of 0.5 h-1 and viscosity index 134.8.
Optimal Operating Conditions for Adsorption of Heavy Metals from an Aqueous Solution by an Agriculture Waste
Authors: Hummadi Khalid Khazzal
Published: July 2021

The aim of this work is to detect the best operating conditions that effect on the removal of Cu2+, Zn2+, and Ni2+ ions from aqueous solution using date pits in the batch adsorption experiments. The results have shown that the Al-zahdi Iraqi date pits demonstrated more efficient at certain values of operating conditions of adsorbent doses of 0.12 g/ml of aqueous solution, adsorption time 72 h, pH solution 5.5 ±0.2, shaking speed  300 rpm, and smallest adsorbent particle size needed for removal of metals.  At the same time the particle size of date pits has a little effect on the adsorption at low initial concentration of heavy metals. The adsorption of metals increases with increasing the initial of metal concentration while above the 85 ppm, the removal efficiency was decreased. The phenomenon of adsorption of heavy metals on to Al-Zahdi Iraqi Date pits is exothermic process. The maximum adsorption capacity according to the Langmuir equation was 0.21, 0.149, and 0.132 mmol/g for Cu2+, Zn2+, and Ni2+ respectively. The adsorption equilibrium was well described by the Freundlich model. The results of Freundlich constants indicated that the adsorption capacity and adsorption intensity of Copper is larger than the Zinc and Nickel. The intraparticle diffusion was involved is this process but it is not the controlling step. The results of this study may inspire to find the optimal operating conditions for adsorption and develop that with large-scale production to clean the polluted water with heavy metals.
An Adaptive Control for the Path Tracking of an Active Leg Prosthesis
Authors: Boucetta Rahma , Abdallah Wiem , Bel Hadj Ali Saloua
Published: July 2021

This paper presents an adaptive fuzzy-PID control strategy applied to an active lower limb prosthesis for trajectories tracking in normal walking, stairs climbing, and stairs descent. Trying to imitate a natural human limb, the prosthesis design challenges rehabilitating amputees to resume normal activities. A dynamic model of an ankle-knee active prosthesis is developed without ground reaction in a first case and introduces ground effect in a second one to ameliorate prothesis performances. The obtained models are used to synthesize a control strategy based on TS fuzzy concepts and PID control to reproduce human lower limb behavior in a normal gait and climb and descent of stairs. The RSME errors are calculated to evaluate and compare the various results performances and eventually show the capacity of the proposed control with ground reaction impact on trajectory tracking. The RMSE values obtained for the four outputs of the fuzzy controller are very small for the different modes of locomotion. Moreover, they become weaker when the ground reaction forces are added to the model to show the role of these forces for the body equilibrium maintaining during the gait cycle. The developed approach ensured good trajectories tracking compared to a healthy leg even in presence of disturbances.
Uji Efektivitas Metode Isolasi DNA Genom Kopi Arabika (Coffea arabica L.) Asal Kabupaten Jayawijaya
Authors: Mawardi Arsyam , Simonapendi Maria L.
Published: July 2021

Genetic substance of DNA has many functions as a basic component of the organism. DNA can be obtained directly through the isolation of DNA. Isolation of genomic DNA Wamena arabica coffee is done by treating the young leaves to get DNA extract. This reasearch is intended to provide scientific contributions in an effort to screen the best methods of DNA isolation, including a modified extraction of Zheng et alÂ method (2005), a modified method of Doyle andÂ Doyle (1990), and method of George and Khan modificaation (2008) or CTAB method. All of methods were tested on Arabica coffee Jayawijaya Wamena. Testing was done by looking at the difference in quality and quantity of products in the form of genomic DNA concentration and DNA thickness, comparing with the marker DNA then electrophoresis on agarose gel. From the results of testing the effectiveness of three types of isolation methods, it was found that the method of George andÂ Khan (2008) or CTAB genomic DNA Â produce the best quality than other methods. In terms of quantity, the criteria in the form of DNA concentrations ranging from 100 ng Î»-DNA/ml, Î»-DNA 50 ng/ml, Î»-DNA 10 ng/ml. Concentration of genomic DNA bands visible when the profile is visualized in gel electrophoresis with UV luminescence. This study will be a step and initial information about the genetic composition of a population of arabica coffee which still exists, and will be developed through DNA amplification technique.Â Key words:Â coffee, isolation of genomic DNA, CTAB method, profile band pattern
Inventarisasi Tanaman Pangan pada Pekarangan Masyarakat Lokal Papua di Distrik Heram, Kota Jayapura
Authors: Lunga Nelly , Simonapendi Maria L.
Published: July 2021

The aim of this study was to understand the plant species grown in house yard of local people in Heram District which had been used as food by local people and the potential of those plant to be and income sources for local people. This research was conducted from August 2016â€“April 2017 using survey and laboratory analysis. Purposive sampling was used to determine the sample, and from 5 villages 5 house yard will be selected to be the sample (total 25 house yard). From this study we found that there were 45 species from 33 family of plants which used as vegetables, ingridients, fruits, and mainly foods.Key words: tanaman pangan, masyarakat lokal, Papua
Faktor-faktor yang Mempengaruhi Pemanfaatan Pelayanan Kesehatan Reproduksi Remaja di Kota Jayapura
Authors: Kristina Yunita
Published: July 2021

This research aimed to study the factors that affect of the adolescent reproductive health service in Jayapura Municipality. This research applied an explanatory research method with a cross-sectional approach. Data were collected by questionnaire, which were involving 393 adolescents aged 15 - 19 years-old at five senior high schoolsÂ across Jayapura Municipality area. Results according to chi-square statistical test provided correlated variables to age (p value = 0.047), religion (p value = 0.048), pocket money (p value = 0.000), socio-culture (p value = 0.001), tariff (p value = 0.047), staff (p value = 0.043), facility (p value = 0.046), knowledge (p value = 0.002), attitude (p value = 0.006). Furthermore, the logistic regression test resulted in staff, need, and domicile status as the most affecting variables on the use of the adolescent reproductive health. This research recommended that service staff had to be friendly and take account for confidentiality, to understand the development of the adolescence, either physically, psychologically, or socially, to provide adolescent reproductive health service at schools, and to have an open communication between adolescents and their parents in order to monitor their development.Â Key words: health services, PKPR, Student High Schools,Â Jayapura
Keanekaragaman Ikan di Selatan Papua
Authors: Ohee Henderite L.
Published: July 2021

One of zoogeographic provinces of freshwater fish in New GuineaÂ is Southern Province, which almost the same size as Northern Province. This region has high diversity of freshwater fish and also shared 33 species with northern Australia due to land connection in the past. Some endemicity areas with high conservation value are found in this region. The research aims is documenting freshwater fish diversity and its distribution in Southern Papua regencies: Boven Digoel, Mappi, Merauke and Timika. It had been conducted from July to November 2016. Purposive sampling method was used on this research.Â The fish samples were collected with active method using seine net and those collected with passive method was using gill netts.Â Fifty species, which consist of 44 natives and 6 introduced species that are part of 29 families and 39 genera were recorded in Timika, Asmat, Boven Digoel, Mappi and Merauke.Â There was no any dominant fish family found in the survey. Most species found during the survey (60%) has distributed in South New Guinea and Northern Australia. Six (6) introduced species were found spreading in several locations in Southern Papua.Â Freshwater fish richness in South of Papua and its restricted distribution in the area have showed high conservation value of the area, which should be well managed to avoid fish extinction.Â Key words: native, endemic, introduced, freshwater fish, South of New Guinea
Index
Authors: Jurnal Pengelola
Published: July 2021

Index
Keragaman Fungi Mikoriza Arbuskula Pada Tumbuhan Pokem [Setaria italica (L.) Beauv.] dengan Metode Traping
Authors: Suharno Suharno , Tanjung Rosye H.R. , Agustini Verena , Sufaati Supeni
Published: July 2021

Arbuscular Mycorrhizal Fungi (AMF) plays important role in increasing plant growth and plant protection against pathogen. Its diversity depends on their habitat, including the abundance and distribution of the host plant on agricultural area. This research has aim to explore the diversity of AMF from the rhizosphere of Pokem (Setaria italica) using trapping methods. Soil samples were collected from Numfor Island, Biak Numfor, Papua. The isolation of AMF from the soil sample was elucidated by wet sieving method. Every different spore then was inoculated to the root of DesmodiumÂ heterocarponÂ to propagate and monosporic culture was grown on ShorgumÂ bicolor. Â The result showed that the number of the spore that was obtained by traping method increased up to 63,63%. Single spores inoculation of AMF on D. heterocarponÂ was high percentage (85%) of success. On average, Monosporic culture of single spore inoculation on S. bicolor reached up to 30,53 spores/10g soil sample. Â There are 6 genera (9 species) wereÂ obtain in this study, namely Glomus, Claroideoglomus, Scutellospora, Gigaspora, Ambispora andÂ Acaulospora. Furthermore, identification using molecular method should be done for proper identification.Key words: AMF, plant rhizosfer, S. italica, trapping methods
Daftar Isi Volume 7
Authors: Jurnal Pengelola
Published: July 2021

Daftar Isi Volume 7
Isolasi Senyawa Saponin dari Mangrove Tanjang (Bruguiera gymnorrhiza) dan Pemanfaatannya sebagai Pestisida Nabati pada Larva Nyamuk
Authors: Liem Alowisya F. , Holle Elisabeth , Gemnafle Ivone Y. , Wakum Sarah
Published: July 2021

Bruguiera gymnorrhizaÂ is a mangrove plant often called tanjangÂ containing several chemical compounds such as saponins, alkaloids, tannins, flavonoids and polyphenols. The purpose of this study was to isolate and determine the toxicity of the methanol extract of bark, leaves and flowers of B. gymnorrhiza as a plant pesticide. Samples were extracted by maceration and soxhletation methods using methanol as solvent. Maceration and soxhletation were done for 24 h and 6 h, respectively. From distillation of maceration treatment was obtained 20.28% (bark), 15.95% (leaves) and 19.69% (interest). In soxhletation there were concentrations of 27.01%, 29.68% and 16, 46%. The results of the foam test and reagent-Buchard Lieberman (LB) showed that only bark and flowers contain saponins. Toxicity tests on mosquito larvae with flower extract by maceration was more toxic than bark; on the contrary bark extract was more toxic than flower extract by soxhletation. SPSS analysis showed LC50Â values for flower extracts was 723.6 ppm and for bark extract was 673.9 ppm. Both bark and flower extracts containing saponins can be categorized as highly toxic (<1000 ppm). Therefore it can be used as a botanical pesticide against mosquito larvae.Â Â Key words: mosquito larvae, mangrove tanjangÂ (B.Â gymnorrhiza), saponins, pesticide.Â
Tumbuhan Obat: Pendekatan Alternatif dalam Pengendalian Nyamuk Aedes aegypti dan Virus Dengue Penyebab Demam Dengue
Authors: Suyono Ign Joko , Karim Aditya K.
Published: July 2021

Dengue is the most important emerging tropical viral disease of humans in the world today. Aedes aegyptiÂ is a major mosquito vector responsible for transmitting many viral diseases and this mosquito that spreads major health problems like dengue fever. The resistance of Ae. aegyptiÂ to insecticides is already widespread and represents a serious problem for programmes aimed at the control and prevention of dengue in tropical countries. The search for compounds extracted from medicinal plant preparations as alternatives insecticide for mosquito control is in immediate need.Â Alternative approach for control Ae. aegyptiÂ dan virus dengue using the medicinal plant will be discussed in this paper.Key words: Medicinal plant, Aedes aegypti, dengue fever, dengue haemorragi fever, dengue shock syndrome
Uji Patogenitas Spora Beauveria bassiana Strain Wamena Sebagai Agen Hayati terhadap Hama Penggerek Buah Kopi Hypothenemus hampei
Authors: Tanjung Rosye H.R. , Kamarea Mesak , Yepese Yan P.
Published: July 2021

Study on virulence test ofÂ Beauveria bassianaÂ strain Wamena spore concentration toward (Hypothenemus hampeiÂ Ferr.) has conducted at Laboratorium of Hayati BPTP Dinas Perkebunan Provinsi Papua during February to April 2010. This study aimed to identify the effectiveness of B. bassiana strain Wamena which has potency as agent to control pest on fruit of CoffeaÂ sp caused by H. hampei. by dipping fruit of CoffeaÂ sp into spore suspension. Complete random design was used in this study. Four concentrations ( 0; 0.01%; 0.02%; 0.03% ; 0.04% and 0.05% of B. bassianaÂ Â spore Â and four replicates Â for each concentration were used. Mortality of H.Â hampeiÂ was observed. Results of this study showed that all concentrations of spore killed imago of Hypothenemus hampeiÂ Ferr. The highest mortality reached 85.625% at 0.05% of spore within 10 days. Therefore, it could be concluded that 0.05% of spore as effective concentration to control H. hampei.Â Key words: Beauveria bassianaÂ strain Wamena, Hypothenemus hampeiÂ Ferr., CoffeaÂ sp., and spore as effective concentration.
Skrining Senyawa Kimia dan Uji Aktivitas Sitotoksik Ekstrak Etanol Teripang Kridou Bintik (Bohadschia argus Jeager) Asal Pantai Harlem Kabupaten Jayapura, Papua
Authors: Kilungga Apianus , Chrystomo Linus Y. , Sujarta Puguh
Published: July 2021

The Bohadschia argusÂ Jeager contains bioactive compounds that have the potential as antibiotics, antibacterial, antitumor, anticoagulants and anesthetics and alleviate cancer. This study aims to determine the content of chemical compoundsÂ groupÂ and to testÂ the cytotoxic activity of ethanol extract of Bohadschia argusÂ Jeager. The method for determining the groupÂ of chemical compounds was used the color reaction and precipitationÂ using chemical reagents. The method for testing cytotoxic activity using the Brine Shimp Lethality Test (BSLT), thisÂ method commonly was used to test the safety of the use of natural ingredients as traditional medicine. The results of screening of the chemical compoundÂ group ofÂ Â Bohadschia argusÂ JeagerÂ extract showed that the extract contained a lot of alkaloidsÂ secondary metabolites and few saponins. The results ofÂ testing of cytotoxic activity showed LC50Â value of 878.22 ppm. Base onÂ the results of this study it can be concluded that the ethanol extract of Bohadschia argusÂ JeagerÂ has significant cytotoxic activity against Artemia salinaÂ Leach, so it can be considered as a chemotherapeutic agent.Â Â Â Key words:Â Screening, chemical compounds,Â ethanolÂ extract, B. argus,Â BSLT.Â
Potensi Mikroorganisme Resisten dari Pantai Timur Surabaya Sebagai Biosorben Seng
Authors: Irawati Wahyu
Published: July 2021

East coast of Surabaya is one of region in Indonesia which contaminated by heavy metals, such as zinc. Zinc is one of essential heavy metals for organisms but be dangerous for human if comsumed in high concentration. So, it is important to to solve the problem to reduce the concentration of zinc in east coast of Surabaya through bioremediation using microorganism. Zinc resistant microorganism could be isolated from zinc contaminated region and be used for bioremediation agent because some microorganism developed resistance mechanism to zinc by bioaccumulation or biosorption. The aims of this study are to isolate and characterize zinc resistant microorganism from east coast of Surabaya. The most resistant microorganism will be observed for the growth in medium supplemented with zinc and without zinc. The potency of the chosen isolate to biosorb of zinc was also analyzed. Water sample from east coast of Surabaya was serries dilluted and innoculated on Luria Bertani Agar medium usingÂ  spread plated method. Microbial resistance to zinc was analyzed by grown the cell on medium containing various concentration of zinc to determine Minimum Inhibitory ConcentrationÂ  (MIC) value of each microbial isolate. Cell turbidity will be observed in the chosen isolate using spectrophotometer in wave length of 600 nm to get the growth curve. The potency of the chosen isolate to biosorb of zinc was analyzed using atomic absorption spectrophotometer. From this study, six bacteria and three yeast have been isolated from east coast of Surabaya, designated asÂ  PmbZn1, PmbZn2, PmbZn3, PmbZn4, PmbZn5, PmbZn6, PmbZn7, PmbZn8, dan PmbZn9. All isolates could grow on medium containing 8 mM ZnSO4. The most resistant bacterial was isolate PmbZn5 with the MIC of 9 mM ZnSO4. The potency of the isolate to biosorb of zinc wasÂ  94,79 and 93,57% in medium containing 4 mM and 7 mM ZnSO4, respectively.Key words: Bacteria, biosorb, resistant, yeast, zinc.
التحليل المكاني لظاهرة تسرب تلاميذ التعليم الابتدائي في مدينة بغداد للعام 2009/2010
Authors: Eyal Shaker Mahmoud , Sajit Ali Abdul Amir
Published: July 2021

لم يعد النظر إلى النظم التربوية على أنها عملية استهلاكية  لا تغطي عوائد ما يصرف عليها من أموال طائلة وجهد فعال ،وإنما تعد عملية استثمارية تؤدي إلى زيادة العملية الإنتاجية ،بالتالي تلعب دورا كبيرا في التنمية البشرية والاقتصادية والاجتماعية واستدامتها، لان الاستثمار في الثروة البشرية هو الأفضل من بين الاستثمار في الثروات الأخرى.

إن ظاهرة التسرب الدراسي من التعليم وبمراحله كافة ،تعد من أهم المشكلات التي تواجه النظم التعليمية في اغلب بلدان العالم ،لاسيما التسرب من المرحلة الابتدائية ، كون هذه الظاهرة تمثل صورة من صور الهدر التربوي ، ولا يمكن النظر إليها على أنها مشكلة فردية تخص التلميذ المتسرب دراسياً فحسب بل هي مشكلة ذات جوانب متعددة على مستوى الفرد أو المجتمع ، ومن هنا تبرز خطورة هذه الظاهرة ونتائجها وآثارها التي تنطبق على التلميذ وعلى أسرته والمجتمع الذي يعيش فيه من خلال ضياع الطاقات البشرية والمادية في النظام التعليمي ،فالظاهرة من العوامل المؤثرة في تركيب السكان التعليمي .

وتأتي هذه الدراسة للتعرف على التوزيع الجغرافي للتلاميذ المتسربين في المدارس الابتدائية في مدينة بغداد وعلى مستوى البلديات ،والعوامل المؤثرة في هذا التوزيع من خلال اكتشاف العلاقات المكانية للتسرب في التعليم الابتدائي.