bluuebunny/crossref_metadata_2025_split huggingface dataset:
Method for Revealing Placer Gold Source
Authors: Vladimirtseva O. V. 
Published: February 2020

Material characteristics of placer gold and geological and geomorphological features of placercontaining watercourses allow revealing the type of source that formed the placer. The studied area (the middle reach of theAdychaRiver, Verkhoyansk District, Yakutia) is characterized by highly developed placer gold mineralization both in ancient terrace sediments and high-order watercourses. The significant placer gold mineralization in the high-order watercourses, at very limited number of known bedrock gold deposits suggests the presence of not yet discovered bedrock gold mineralization. Revealing the type of sources of placer gold in young high-order watercourses allows to create prognostic and prospecting models for both potential placer and primary (vein) ore occurrences. The purpose of the study is to compile a logical-information algorithm, which, based on the most significant material and geological-geomorphological factors, will enable revealing the type of placer gold source and the possibility of its location discovery and probability of gold transportation continuation from the source. The study result is presented by a program (the Python programming language) that characterizes the type of placer gold source based on gold grain rounding degree, the presence of gold intergrowths with other minerals and the presence of heavy fraction. Assessment of the possibility of placer gold source location determination is based on geological and geomorphological factors: watercourse order, the type of placer, and spatial association with terraces of ancient erosion levels. The study of well-known gold placers using the created program allowed revealing gold placers with supposedly primary gold source and other ones with the source in the form of a natural intermediate gold concentrator. A map of exogenous gold mineralization with forecast elements was also created, presenting areas promising for revealing primary gold mineralization (areas of presence of high-order watercourses with gold mineralization source) and areas of high-order watercourses promising for discovering gold placers (identified by analogy (in geological and geomorphological position) with watercourses with the known source in the form of natural intermediate gold concentrator.
Inheritance of Some Growth and Yield Traits in Bread Wheat Using Line×Tester Analysis
Authors: Ali Fatih , Abdulkhaleq Dana 
Published: February 2020

Seven Bread wheat genotypes (Triticum aestivum L.) were used in this investigation. Three genotypes namely (Maroof, Aras, and Hasad) were used as female parents (lines) and four genotypes namely (Alla, Tamuz-2, Adana and Sabr Beg) were used as male parents (testers).The 12 F1’s hybrids with their 7 parents were evaluated during 2018-2019 growing season. Genotypes were crossed in a line×tester matting in Completely Randomized Block Design (CRBD) with three replicates at two Locations; Kanipanka and Qlyasan, at Sulaimani city in Iraqi Kurdistan Region. The pooled analysis of variance confirmed that location had a significant effect on almost all of the studied traits, but it has no effect on grain yield plant-1. The results proved a significant difference between the studied locations in all characters except final yield. At Kanipanka location, Sabr Beg and the cross Maroof×Tamuz-2 granted the highest yield; 26.303 and 23.914 g plant-1respectively.At Qlyasan location Tamuz-2 and the cross Hasad ×Tamuz-2granted the highest yield;19.875 and 19.724 g plant-1 respectively. Tamuz-2 recorded the highest positive General Combining Ability values (2.331and 2.479) for grain yield plant-1 at Kanipanka and Qlyasan, respectively. The cross Maroof ×Tamuz-2 showed the maximum positive Specific Combining Ability effect values (3.034) for grain yield plant-1 at Kanipanka, while at Qlyasan the cross Aras×Sabr Beg record the maximum value with 1.743. Testers brought many variations in the expression of the trait grain yield plant-1 at Kanipanka and Qlyasan, respectively. At both locations, the ratio of σ2gca /σ2sca value was less than one (0.062 and 0.450) and the average degree of dominance value was more than one (4.005 and 1.490) which confirmed that non-additive gene effect was in control for the trait grain yield plant-1. The maximum desirable positive heterosis value (26.082) recorded by the crosses Maroof×Tamuz-2 at Kanipanka location, while at Qlyasan location the cross Aras×SabrBeg recorded the maximum desirable positive heterosis value (26.989) for grain yield plant-1.
Effect of Different Disinfecting Solutions on some Properties of Maxillofacial Elastomers Over Time
Authors: Al-Jumaili Qaiss , Salim Salim 
Published: February 2020

Objective: The use of disinfectant solutions for a long time can cause distortion in the maxillofacial prosthesis. The purpose of this study is to check the efficiency of three disinfectant solutions on bacteria and Candida and to evaluate the changes in the color and the hardness of the silicon with the increasing of the time of disinfection.
Methods: Twenty-eight samples of maxillo-facial silicon with dimensions of 4cm*1cm*3mm for each sample were used and divided into four groups. Group I: Normal saline 0.9 %, Group II: Sodium hypochlorite 3%, Group III: Thymol 2%, and Group IV: Neutral soap. The samples contaminated with isolated Staphylococcus epidermidis bacteria and Candida Albicans; each group immersed for 10 minutes and then 30 hours in testing solutions evaluating the growth of colonies. Hardness test was done for all testing groups by the use of Shore-A hardness tester after 30 hours of immersion for each group. Color stability was also done by the use of a digital Spectrophotometer for the same samples after the same period of immersion.
Results: Sodium hypochlorite and thymol solutions showed a highly significant difference on bacterial and Candida growth in both time intervals with no effect on hardness and color, Neutral soap showed a poor disinfection effect on microorganisms with a low significant change in the hardness and no effect on color stability.
Conclusions: Sodium hypochlorite 3% and Thymol 2% are very effective disinfection solutions on both bacteria and candida with very little effects on the hardness and color stability
Dispersion of Zinc Oxide Nanoparticles in Maxillofacial Silicone Elastomer by Ultrasonication: A Morphological Study
Authors: Abdalqadir Mohammed , Faraj Souza , Azhdar Bruska 
Published: February 2020

Objective: Aggregation and agglomeration of nanoparticles in silicone elastomer is a common problem that adversely affects the mechanical properties of the silicone because the aggregations act as a weak and stress concentrating point within the silicone elastomer matrix. The objective of this study was to evaluate the effect of sonication on the dispersion of ZnO nanoparticles in M-511 heat vulcanized maxillofacial silicone.
Methods: Nano-ZnO was added in concentrations of 1%, 2%, 3%, and 5% by weight to Cosmesil M-511 heat vulcanized maxillofacial silicone elastomer, after sonication of ZnO nanoparticles in ethanol for 30 minutes at room temperature, and 1%, 2%, 3%, and 5% were added by weight without sonication of ZnO nanoparticles. Then field emission scanning electron microscope (FESEM) and X-ray diffraction (XRD) tests were used to assess the efficiency of the dispersion method and to monitor the particle size of nano-ZnO.
Results: FESEM test showed a reduction in cluster size of nano-ZnO as a result of sonication. XRD and FESEM showed a homogenous dispersion of ZnO nanoparticles within the silicone matrix.
Conclusions: Based on the results of this morphological study, sonication of nano-ZnO in ethanol represented an effective and easy way to disperse nano-ZnO in a silicone elastomer matrix. This led to a superior quality nanocomposite without affecting the base material and without the need for a coupling agent or addition of any third material.
Patient Complaints and Satisfaction with Removable Partial Dentures Therapy in Sulaimani City, Iraq
Authors: Salih Hewa , Abdulazeez Jwan , Faiq Tanya , Mahmood Mohammed , Abdalrahim Rukhosh 
Published: February 2020

Objective: This study examined patients' complain regarding pain, retention and stability, food accumulation, mastication, and speaking with removable acrylic partial dentures (RPDs). Furthermore, the influence of sex, age and duration of the use of current RPDs on patient satisfaction.
Methods: The study sample included 156 RPD wearers (107 females and 49 males) aged between (27-81) years old. Sex, age, occupation, any experience with previous RPDs, and the duration of the use of current RPDs were recorded. Then, patient satisfaction with food accumulation, presence of pain, retention and stability, mastication as well as speaking with RPDs were recorded. Data were analyzed using the Spearman’s correlation, independent t-test, and Pearson correlation test.
Results: A statistically significant relation was found between overall satisfaction and age (P =0.013). However, no significant relation of sex and wearing days of RPDs with satisfaction was observed. Eating with RPDs was the most significant complaint about most of the patients, followed by food impaction under or around the prosthesis. By contrast, speaking with RPDs was the least problem for participated patients. In addition, in the present study patients were more satisfied with RPDs that were fabricated by dentists in comparison with dental technicians (p=0.001).
Conclusions: Age has a remarkable impact on patient satisfaction with RPDs. Chewing and eating recorded the highest complain. Patients were more satisfied with RPDs constructed by a dentist. A good communication between dentists and dental technicians is recommended to improve the quality of RPDs, hence raising the patient’s oral health and quality of life.
Ethanol Extract of Detam 1 Soybean Seed (Glycine Max L. Merr) for Chronic Kidney Disease Therapy by In Vitro Study
Authors: Prahastuti Sijani , Hidayat Meilinah , Hasiana Stella Tinia , Widowati Wahyu , Amalia Annisa , Qodariah Rismawati Laila , Rizal Rizal , Wibowo Satrio Haryo Benowo , Kusuma Hanna Sari Widya 
Published: February 2020

Chronic Kidney Disease (CKD) has increased incidence and prevalence in developing nations. In this in vitro study, we evaluated the cells proliferative effects, fibronectin (FN), transforming growth factor β (TGF-β1), and Reactive oxygen species (ROS) - level inhibition potential of ethanol extract of detam 1 soybean seed (EEDS) on glucose-induced kidney mesangial cells (SV40 MES 13). The cells proliferation assay used 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)2H-tetrazolium (MTS) assay. FN and TGF-β1 level were measured using ELISA assay kit and ROS level using flow cytometry. Level of FN, TGF-β1 and ROS, on CKD cells model (5 mM, 10 mM glucose-induced mesangial cell) treated with EEDS 6.25 µg/mL were lower significantly compared to positive control, EEDS improve cells viability and decrease FN, TGF-β1 and ROS level in glucose-induced kidney mesangial cells as CKD cells model.
Isolation and Identification of DPPH Radical (2,2-diphenyl-1-pikrylhidrazyl) Scavenging Active Compound in Ethyl acetat fraction of Piper acre Blume
Authors: Rijai Hifdzur Rashif , Fakhrudin Nanang , Wahyuono Subagus 
Published: February 2020

Piper acre Blume, known as Black Betel (local name), is a plant that is widely used by the people of East Kalimantan, especially in Samarinda, for the treatment of illness. Leaves (3-4 months old) are collected from Samarinda, extracted, fractionated, and monitored by DPPH antiradical activity. The isolation of the Piper acre Blume is performed on the active fraction, and the structure identification is based on spectroscopic data of the compound. The leaves were dried, pulverized, and macerated with MeOH. Dried MeOH extract was obtained upon evaporation of the solvent. The extract was then fractionated by vacuum liquid chromatography (vlc), eluted gradually by solvents having different polarities (n-hexane, ethyl acetate and methanol). The fractions obtained were monitored using TLC [n-hexane: ethyl acetate (3: 1 v/v)] that was visualized by UV254 nm, UV366 nm and DPPH. The isolation was performed by preparative TLC [SiO2, n-hexane: ethyl acetate (3: 1)] on ethyl acetate fraction that showed the highest DPPH antiradical value. A single compound was obtained, and it appeared as a round spot and pure according to TLC performances at 3 different solvent systems. The isolated Piper acre Blume compound displayed the IC50 value on the anti-radical DPPH (measured at λ 520 nm) as 10.41µg/mL. The IR spectrum (KBr) showed –OH band (3450 cm-1), aliphatic bands [alkene, 3010 cm-1; alkana 2900 cm-1), an aromatic overtone bands (1900-200 cm-1) and a strong C=O band (1725 cm-1). The NMR (1H- and 13C-) (mono and 2D) indicated the present of a p-di-substituted aromatic signals (δ, 7.54 and 7.52, d, J =6 Hz, 1 H each), 2 methyl (δ, 0.96, d, J = 7.0 Hz, 6 Hs), a triplet signal (δ, 4.22 ppm). Other signals of CH- and CH2 were shown as m signals at δ, 1.64 and 1.34 ppm. Based on those data, the compound was identified as isoamyl p-OH benzoate that is grouped as parabens used as a preservative in the pharmaceutical preparations. In conclusion, the anti-radical (DPPH) active compound present in the leaves of Piper acre Blume is identified as isoamyl p-OH benzoate, having IC50 value anti-radical DPPH 10,41µg/mL.
Hypo-q-Norms on a Cartesian Product of Algebras of Operators on Banach Spaces
Authors: Dragomir Silvestru Sever 
Published: February 2020

Abstract
In this paper we consider the hypo-q-operator norm and hypo-q-numerical radius on a Cartesian product of algebras of bounded linear operators on Banach spaces. A representation of these norms in terms of semi-inner products, the equivalence with the q-norms on a Cartesian product and some reverse inequalities obtained via the scalar reverses of Cauchy-Buniakowski-Schwarz inequality are also given.
TABUNGAN PERUMAHAN RAKYAT (TAPERA) DAN PENERAPANNYA DI DKI JAKARTA
Authors: Putra Henriko Ganesha , Fahmi Erwin , Taruc Kemal 
Published: February 2020

Occupancy is a basic need of every human being. As mandated by the 1945 Constitution, the State guarantees the fulfillment of citizens' needs for decent and affordable dwellings in the framework of developing Indonesian people who are wholly, self-conscious, independent and productive. The Public Housing Savings (Tapera) in accordance with Law of the Republic of Indonesia number 4 of 2016, is a long-term fund storage program that is used for housing finance, especially for Low-Income Communities (MBR). BAPERTARUM-PNS is an important lesson on how the goals of the housing savings are not utilized as retirement savings by most participants. The problem with this study is whether Tapera can be a solution for MBR in reaching funding for housing or repeating the failure of the BAPERTARUM-PNS program. Data collection from the Central Government, BP Tapera, and the Provincial Government of DKI Jakarta will be analyzed in the form of modeling of potential national and regional participation in and utilization of Tapera in DKI Jakarta Province. The results of the modeling analysis indicate a gap between Tapera's policies and people's expectations of a housing finance affordability solution for the MBR. AbstrakHunian merupakan kebutuhan dasar setiap manusia. Sebagaimana amanat UUD 1945, Negara menjamin pemenuhan kebutuhan warga negara atas tempat tinggal yang layak dan terjangkau dalam rangka membangun manusia Indonesia seutuhnya, berjati diri, mandiri, dan produktif. Tabungan Perumahan Rakyat (Tapera) sesuai Undang-Undang Republik Indonesia nomor 4 tahun 2016, merupakan program penyimpanan dana jangka panjang yang dimanfaatkan untuk pembiayaan perumahan, terutama bagi Masyarakat Berpenghasilan Rendah (MBR). BAPERTARUM-PNS menjadi pelajaran penting bagaimana ketidakberhasilan tujuan dari tabungan perumahan yang dimanfaatkan sebagai tabungan pensiun oleh sebagian besar peserta. Permasalahan dari studi ini adalah apakah Tapera dapat menjadi solusi bagi MBR dalam menjangkau pembiayaan untuk memperoleh hunian atau mengulangi ketidakberhasilan program BAPERTARUM-PNS. Pengumpulan data dari Pemerintah Pusat, BP Tapera, dan Pemerintah Provinsi DKI Jakarta akan dianalisis dalam bentuk Pemodelan potensi kepesertaan dan dana pemanfaatan Tapera secara nasional maupun regional di Provinsi DKI Jakarta. Hasil dari analisis pemodelan tersebut mengindikasikan adanya celah (gap) antara kebijakan Tapera dan harapan masyarakat akan hadirnya solusi keterjangkauan pembiayaan hunian bagi MBR.
ANALISA KAPASITAS OPTIMAL LAPANGAN PENUMPUKAN DI PANGKALAN LONTANGNGE PELABUHAN PAREPARE
Authors: Amaliah Anugrah 
Published: February 2020

Abstrak
Perencanaan pelabuhan yang tidak tepat dapat mengakibatkan pelayanan pelabuhan yang kurang efisien. Optimasi digunakan untuk menemukan sebuah kondisi yang diperlukan untuk mencapai hasil terbaik dari situasi yang ada. Hal ini dicapai dengan menyeimbangkan antara biaya pelayanan yang ada dengan biaya tunggu yang diakibatkan oleh pelayanan yang ada. Biaya pelayanan tergabung dalam pengoperasian fasilitas sedang biaya tunggu menyatakan biaya menunggu bagi pelanggan. Menambah ataupun meningkatkan pelayanan berarti dapat mengurangi waktu tunggu pelanggan. Penelitian ini bertujuan untuk menganalisis kapasitas optimal Lapangan Penumpukan Petikemas Lontangnge Pelabuhan Parepare untuk jangka pendek, jangka menengah dan jangka panjang, serta menentukan dimensi ukuran dari Lapangan Penumpukan Petikemas Lontangnge Pelabuhan Parepare. Analisa dilakukan dengan menggunakan teori antrian, dimana teori ini membantu dalam menghitung biaya-biaya akibat pelayanan yang menunggu. Perhitungan ini dilakukan dengan menganalisa data muatan bongkar-muat (B/M) petikemas dan data barang pada petikemas untuk memperoleh biaya yang ada. Selain itu, dilakukan pula perhitungan daya dukung tanah untuk menentukan tinggi tumpukan petikemas dan kapasitas lapangan. Pada hasil penelitian ini, diperoleh untuk Jangka Pendek biaya optimum untuk Lapangan Penumpukan Petikemas Lontangnge Pelabuhan Parepare adalah Rp. 27,479,774,886.03 dengan luas dimensi lapangan adalah 4700 m2. Sedangkan untuk Jangka Menengah dan Jangka Panjang adalah Rp. 36,690,983,344.01 dengan luas dimensi lapangan adalah 25000 m2.
Kata Kunci: Optimasi, Kapasitas Lapangan, Muatan B/M.

Abstract
Improper port planning results in less efficient port services. Optimization is used to find the one condition to find the best outcome of the situation. This is achieved by balancing the cost of existing services with the waiting costs caused by existing services. Service charges are incorporated in the operation of the facility while the waiting costs state the waiting costs for customers. Adding or improving services means reducing customer waiting times. The aim of this research is to analyze the optimal capacity of Lontangnge Container Yard Port of Parepare, medium and long term, and to determine the dimension of container yard’s size. The analysis is done by using queuing theory, where the costs of waiting service can be calculated. This calculation is done by analyzing data of loading-discharging payload and goods data on container to obtain cost. In addition, the calculation of soil bearing capacity is also determined the height of container pile and Container Yard (CY) capacity. In the results of this study, obtained for the short-term optimum cost for the Lontangnge Parcel Container Parepare Field is Rp. 27,479,774,886.03 with the width of field dimension is 4700 m2. While for the Medium Term and Long Term is Rp. 36,690,983,344,01 with the field dimension is 25000 m2.
Keywords : Optimation, CY Capacity, Loading-Discharging Goods.
Sistem Pengendali Pengisian Baterai pada Pembangkit Listrik Tenaga Surya
Authors: Ainuddin Asma , Manjang Salama , Samman Faizal Arya 
Published: February 2020

Kerusakan baterai merupakan permasalahan yang sering terjadi pada Pembangkit Listrik Tenaga Surya. Beberapa penyebabnya yaitu keadaan pengisian yang berlebih, tegangan terlampau rendah dan suhu baterai yang terlalu panas. Pemanfaatan sistem kendali pengisian baterai merupakan solusi terbaik. Selain berfungsi untuk mempertahankan tegangan luaran panel surya pada level tegangan baterai, sistem ini juga mengendalikan waktu pengisian. Pada paper ini, sistem pengisian baterai dibangun dari rangkaian DC ke DC konverter menggunakan charge pump, rangkaian kendali menggunakan Arduino Mega, dan rangkaian pengisian baterai. Tahap perancangan terdiri dari simulasi, pembuatan perangkat keras, dan perangkat lunak. Simulasi karakteristik charge pump menggunakan PSpice dengan konﬁgurasi dioda dan Mosfet sebagai komponen pensaklaran. Karakteristik yang didapatkan berupa penguatan tegangan maksimum sebesar 2.44×, rekuensi kerja 10 kHz hingga 250 kHz, dan nilai tahanan beban antara 1 Ohm hingga 5 kOhm. Berdasarkan hasil tersebut diketahui pula bahwa penggunaan dioda lebih baik dibanding penggunaan Mosfet, oleh karena itu perangkat keras charge pump dirancang dengan menggunakan dioda. Pengetesan rangkaian dilakukan dengan menghubungkan panel surya ke masukan sistem kendali, hasil akhir menunjukkan sistem kendali pengisian baterai mampu mempertahankan kondisi tegangan pada level baterai yaitu sebesar 12 V walaupun tegangan panel surya bervariasi pada nilai 6 V hingga 10 V.
Hubungan Motivasi dan Penggunaan Internet dengan Tingkat Kepuasan pada Petani Perempuan
Authors: Rohtianado Yedha Ristya , Prasodjo Nuraini Wahyuning 
Published: February 2020

Nowadays, the internet as an information and communication technology allows being used by all actors without exception, including those involved in agriculture. The use of the internet in the delivery of agricultural information has the opportunity to transform traditional agriculture into modern agriculture. The use of information and communication technology is very close to the identity of men. Women are often only used as objects and find various obstacles. It is suspected that there are differences among women using internet media. This research aims to analyze the relationship between characteristics and motivation with internet usage and the relation between internet usage with the level of satisfaction by women farmers. This research uses census methods to 33 women farmers KWT Puspa Sari in Kedung Badak Village. The results showed that age and income level has a significant correlation with frequency. Motivation factors have correlations with frequency and intensity. Meanwhile, the intensity has a correlation with satisfaction information.Keywords: internet, satisfaction, motivation, women farmers. ABSTRAKSaat ini internet sebagai teknologi informasi dan komunikasi yang memungkinkan untuk digunakan oleh semua pelaku tanpa terkecuali, termasuk pelaku yang menekuni bidang pertanian. Penggunaan internet dalam penyampaian informasi pertanian berpeluang untuk merubah pertanian tradisional menjadi pertanian modern. Pemanfaatan teknologi informasi dan komunikasi sangat dekat dengan identitas laki-laki. Kaum perempuan sering hanya dijadikan sebagai obyek dan menemukan berbagai kendala. Diduga terdapat perbedaan di kalangan perempuan dalam menggunakan media internet. Penelitian ini bertujuan untuk menganalisis hubungan karakteristik dan motivasi dengan penggunaan internet serta bagaimana hubungan penggunaan media internet dengan tingkat kepuasan pada petani perempuan. Penelitian ini menggunakan metode penelitian sensus kepada 33 petani perempuan anggota Kelompok Wanita Tani Puspa Sari di Kelurahan Kedung Badak. Hasil penelitian menunjukkan bahwa faktor usia dan tingkat penghasilan memiliki hubungan yang signifikan dengan frekuensi. Faktor motivasi memiliki hubungan dengan frekuensi dan intensitas. Sementara itu, intensitas memiliki hubungan dengan kepuasan informasi.Kata kunci: internet, kepuasan, motivasi, petani perempuan.