bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALISIS KECELAKAAN PENERBANGAN DI INDONESIA UNTUK PENINGKATAN KESELAMATAN PENERBANGAN
Authors: Poerwanto Eko , Mauidzoh Uyuunul 
Published: May 2019

Achievement level of aviation safety can be achieved with the proper function of all components of the system in the aviation industry which consists of airport operators, airline operators, air traffic operators and aircraft maintenance operator, as well as the regulations set by the regulator. Every incident should be investigated aviation accidents to fin d the cause. This is to provide appropriate recommendations so that the same airline accident does not happen again. The increasing number of flights that are needed with safety guarantees. So it is importance to analyzed routine flight accident to improve the safety performance of airlines. This research is descriptive analysis with qualitative methods. Flight accidents data that have investigated from NTSC and DGCA grouped causes are then recommendations have been made by the NTSC also grouped for each operator stakeholders. Improved system of aviation safety in Indonesia can be done with a thorough analysis based on the results of investigation of NTSC whose recommendations have been given to all stakeholders in the aviation industry. The results showed that the causes of flight accidents in Indonesia is dominated by the human factor the percentage reached 60%. The highest number of the recommendations given by the NTSC to DGCA as many as 208 recommendations during the period 2007-2014 but the trend o f declining. On other side of the trend of the recommendations given to aviation operators showed an increase. This shows an increase in the duty on DGCA to always supervise, and set the standard flight operations carried out by several airline operators in Indonesia.
STUDI KOMPARASI PENGARUH VARIASI ARUS PENGELASAN TERHADAP KEKUATAN IMPAK, KEKERASAN, DAN STRUKTUR MIKRO SAMBUNGAN LAS PEGAS DAUN BAJA SUP 9 PADA PROSES LAS SMAW
Authors: Nugroho Fajar 
Published: May 2019

Abstract Spring is a component that functions to receive dynamic load and providescomfort in driving. The problem is the leaf spring is sometimes broken due to theoverload or unfavorable road conditions. The solution for that problem is grafting using the SMAW welding.This study aims to determine the effect of variations in the welding currentto the impact strength, hardness and microstructure. Types of weld used is SMAW with a variety of welding current of 100 A, 120 A and 140 A and the type of seam used is the type of seam V.The highest impact strength test was 1.698 j/mm2at 100 A and the highest hardness test was 355.338 HVN at 140 A. In addition, the micro structure at the welding area has bigger grain size and more pearlite structure at 140 A. Keywords: welding current, impact strength, hardness, micro structure AbstrakPegas adalah suatu komponen yang berfungsi untuk menerima beban dinamis dan memberikan kenyamanan dalam berkendara. Permasalahan yang sering dialami oleh pegas daun adalah patah akibat beban lebih atau kondisi jalan yang kurang baik. Penanganan pada hal seperti ini adalah penyambungan menggunakan las SMAW.Penelitian ini bertujuan untuk mengetahui pengaruh variasi arus pengelasan terhadap kekuatan impak, kekerasan dan Struktur mikro. Jenis las yang digunakan adalah las SMAW. Variasi arus pengelasan yang digunakanadalah 100 A, 120 A dan 140 A. Jenis kampuh yang digunakan adalah jenis kampuh V.Hasil uji kekuatan impak tertinggi diperoleh pada variasi arus 100 A yaitu sebesar 1,698 J/mm2. Hasil uji kekerasan tertinggi diperoleh pada variasi arus 140 A yaitu sebesar 355,338 HVN. Struktur mikro pada daerah las memiliki ukuran butiran yang semakin besar dan struktur perlit yang semakin banyak untuk variasi arus 140 A.Kata kunci: arus pengelasan, kekuatan impak, kekerasan, struktur mikro
RANCANG BANGUN WEB REPLIKA PADA WEBSITE E-COMMERCE
Authors: Gita Purnama Putri Baiq Dinasti , Honggowibowo Anton Setiawan , Kusumaningrum Anggraini 
Published: May 2019

E-commerce or electronic commerce is an activity related to the purchase, sale, marketing of goods or services by using electronic systems such as the Internet or a computer network as a medium. In its development, e-commerce website has a lot of models and concepts, one of which is a replica website. Replica website is a reflection of the website host website itself. Website replica would be obtained if it had been making purchases on the website o f the parent (stta.name:8000) or web replica owned by a member (stta.name:8000/ sponsor=namaanggota). If you already have a replica website then the owner can sell online using the web replica, and can change the prices ofgoods as well as web background replicas. Besides being able to change the price and the background, a replica web owners are also entitled to a bonus from the purchase o f its products downline level 1. For the award is the excess of the price that has been modified with an initial price of a web master or web links above. From the calculation o f the questionnaire that was distributed to 30 respondents, the result of testing knowledge of web replica of 42.7% based on the assessment interval is Enough and application usage by 78.5%, which means Good.
Sistema alternativo de compras para personas con hipoacusia
Authors: Vega-Roco Sebastián Eduardo , Favier Jorge Luis 
Published: May 2019

Realizar compras se ha vuelto un tanto tedioso, si a su vez el cliente cuenta con algún grado de hipoacusia, las dificultades son aún mayores, tornándose casi imposible realizar las mismas, sintiéndose excluidos por la sociedad. En el mundo moderno se busca facilitar las actividades cotidianas mediante el uso de tecnología. Este trabajo provoca la inclusión social de personas hipoacúsicas permitiéndoles realizar las compras, logrando facilitar, agilizar y optimizar los procesos en general, como: elección y toma de pedidos, atención al público, formas de pago, etcétera; otorgando a su vez el valor agregado que le permite al empresario la administración del negocio. Para esto se utiliza el Sistema Alternativo de Compras, una aplicación Smartphone que hace de interfaz cliente encargada de recolectar los datos de la compra y enviarlos a través de dispositivos de transmisión/ recepción inalámbricos (WiFi) hacia la plataforma SMMI que hace de interfaz local, la cual provee tanto la información de la compra, como también la información de negocio, importante para la toma de decisiones y la optimización del servicio
Inovasi Dan Peningkatan Nilai Jual Produk Hasil Umkm Melalui Pelatihan Pembuatan Bolu Kukus Berkarakter
Authors: Dewi Santi Riana , Agustin Maulida , Nurcahyo Farhan April 
Published: May 2019

Pelaksanaan kegiatan pengabdian kepada masyarakat merupakan kewajiban yang harus dilaksanakan oleh dosen bersama dengan mahasiswa. Pengabdian ini dilaksanakan di Desa Susukan Kecamatan Tirtayasa. Tujuan dari pengabdian adalah meningkatkan ketrampilan dan kesejahteraan masyarakat dengan membuat produk-produk inovatif hasil UMKM. Adanya inovasi dari produk-produk tersebut diharapkan mampu memberikan nilai jual lebih, sehingga dapat meningkatkan keuntungan yang diperoleh para pelaku usaha. Selama ini produk bolu kukus yang banyak dijual kurang variatif, sehingga diperlukan adanya inovasi agar berkembang. Pembuatan bolu kukus berkarakter yang diberi merek Rainbow Cake, tidak memerlukan penambahan biaya produksi yang besar, tetapi diperlukan kreatifitas kemampuan untuk menggambar di atas bolu. Dengan memberikan pelatihan pembuatan bolu kukus berkarakter diharapkan selain mengasah ketrampilan para pelaku usaha dalam berkreatif dengan seni menggambar di atas bolu, tetapi juga akan meningkatkan penghasilan. Pada pelatihan diberikan juga cara-cara pengemasan dan labeling produk agar lebih bersih dan menarik. Selain itu bolu kukus berkarakter diharapkan mampu memperluas segmen pasar, sehingga dapat dijadikan produk favorit untuk semua kalangan masyarakat. Melalui kegiatan pengabdian kepada masyarakat selain memberikan tantangan kepada para dosen dan mahasiswa agar lebih kreatif dan inovatif, juga akan meningkatkan kualitas dan keberalangsungan produk yang dihasilkan pada waktu yang akan datang.
Ossification of the pterygoalar and pterygospinous ligaments: a computed tomography analysis of infratemporal fossa anatomical variants relevant to percutaneous trigeminal rhizotomy
Authors: Matys Tomasz , Ali Tariq , Zaccagna Fulvio , Barone Damiano G. , Kirollos Ramez W. , Massoud Tarik F. 
Published: May 2019

OBJECTIVEOssification of pterygoalar and pterygospinous ligaments traversing the superior aspect of the infratemporal fossa results in formation of osseous bars that can obstruct percutaneous needle access to the trigeminal ganglion through the foramen ovale (FO), interfere with lateral mandibular nerve block, and impede transzygomatic surgical approaches. Presence of these ligaments has been studied on dry skulls, but description of their radiological anatomy is scarce, in particular on cross-sectional imaging. The aim of this study was to describe visualization of pterygoalar and pterygospinous bars on computed tomography (CT) and to review their prevalence and clinical significance.METHODSThe authors retrospectively reviewed 200 helical sinonasal CT scans by analyzing 0.75- to 1.0-mm axial images, maximum intensity projection (MIP) reconstructions, and volume rendered (VR) images, including views along the anticipated axis of the needle in percutaneous Hartel and submandibular approaches to the FO.RESULTSOssified pterygoalar and pterygospinous ligaments were readily identifiable on CT scans. An ossified pterygoalar ligament was demonstrated in 10 patients, including 1 individual with bilateral complete ossification (0.5%), 4 patients with unilateral complete ossification (2.0%), and 5 with incomplete unilateral ossification (2.5%). Nearly all patients with pterygoalar bars were male (90%, p < 0.01). An ossified pterygospinous ligament was seen in 35 patients, including 2 individuals with bilateral complete (1.0%), 8 with unilateral complete (4%), 8 with bilateral incomplete (4.0%), 12 with bilateral incomplete (6.0%) ossification, and 5 (2.5%) with mixed ossification (complete on one side and incomplete on the contralateral side). All pterygoalar bars interfered with a hypothetical needle access to the FO using the Hartel approach but not the submandibular approach. In contrast, 54% of complete and 24% of incomplete pterygospinous bars impeded the submandibular approach to the FO, without affecting the Hartel approach.CONCLUSIONSThis study provides the first detailed description of cross-sectional radiological and applied surgical anatomy of pterygoalar and pterygospinous bars. Our data are clinically useful during skull base imaging to predict potential obstacles to percutaneous cannulation of the FO and assist in the choice of approach, as these two variants differentially impede the Hartel and submandibular access routes. Our results can also be useful in planning surgical approaches to the skull base through the infratemporal fossa.
Accumulated thermal dose in MRI-guided focused ultrasound for essential tremor: repeated sonications with low focal temperatures
Authors: Jones Ryan M. , Kamps Shona , Huang Yuexi , Scantlebury Nadia , Lipsman Nir , Schwartz Michael L. , Hynynen Kullervo 
Published: May 2019

OBJECTIVEThe object of this study was to correlate lesion size with accumulated thermal dose (ATD) in transcranial MRI-guided focused ultrasound (MRgFUS) treatments of essential tremor with focal temperatures limited to 50°C–54°C.METHODSSeventy-five patients with medically refractory essential tremor underwent MRgFUS thalamotomy at the authors’ institution. Intraoperative MR thermometry was performed to measure the induced temperature and thermal dose distributions (proton resonance frequency shift coefficient = −0.00909 ppm/°C). In 19 patients, it was not possible to raise the focal temperature above 54°C because of unfavorable skull characteristics and/or the pain associated with cranial heating. In this patient subset, sonications with focal temperatures between 50°C and 54°C were repeated (5.1 ± 1.5, mean ± standard deviation) to accumulate a sufficient thermal dose for lesion formation. The ATD profile sizes (17, 40, 100, 200, and 240 cumulative equivalent minutes at 43°C [CEM43]) calculated by combining axial MR thermometry data from individual sonications were correlated with the corresponding lesion sizes measured on axial T1-weighted (T1w) and T2-weighted (T2w) MR images acquired 1 day posttreatment. Manual corrections were applied to the MR thermometry data prior to thermal dose accumulation to compensate for off-resonance–induced spatial-shifting artifacts.RESULTSMean lesion sizes measured on T2w MRI (5.0 ± 1.4 mm) were, on average, 28% larger than those measured on T1w MRI (3.9 ± 1.4 mm). The ATD thresholds found to provide the best correlation with lesion sizes measured on T2w and T1w MRI were 100 CEM43 (regression slope = 0.97, R2 = 0.66) and 200 CEM43 (regression slope = 0.98, R2 = 0.89), respectively, consistent with data from a previous study of MRgFUS thalamotomy via repeated sonications at higher focal temperatures (≥ 55°C). Two-way linear mixed-effects analysis revealed that dominant tremor subscores on the Fahn-Tolosa-Marin Clinical Rating Scale for Tremor (CRST) were statistically different from baseline at 3 months and 1 year posttreatment in both low-temperature (50°C–54°C) and high-temperature (≥ 55°C) patient cohorts. No significant fixed effect on the dominant tremor scores was found for the temperature cohort factor.CONCLUSIONSIn transcranial MRgFUS thalamotomy for essential tremor, repeated sonications with focal temperatures between 50°C and 54°C can accumulate a sufficient thermal dose to generate lesions for clinically relevant tremor suppression up to 1 year posttreatment, and the ATD can be used to predict the size of the resulting ablation zones measured on MRI. These data will serve to guide future clinical MRgFUS brain procedures, particularly those in which focal temperatures are limited to below 55°C.
Mild Cognitive Impairment and Decline in Resting State Functional Connectivity after Total Knee Arthroplasty with General Anesthesia
Authors: Hardcastle Cheshire , Huang Hua , Crowley Sam , Tanner Jared , Hernaiz Carlos , Rice Mark , Parvataneni Hari , Ding Mingzhou , Price Catherine C. 
Published: May 2019

Background: Research shows that older adults can have a decline in three key resting state networks (default mode network, central executive network, and salience network) after total knee arthroplasty and that patients’ pre-surgery brain and cognitive integrity predicts decline. Objectives: First, to assess resting state network connectivity decline from the perspective of nodal connectivity changes in a larger older adult surgery sample. Second, to compare pre-post functional connectivity changes in mild cognitive impairment (MCI) versus non-MCI. Methods: Surgery ( n = 69) and non-surgery ( n = 65) peers completed a comprehensive preoperative neuropsychological evaluation and pre- and acute (within 48 hours) post-surgery/pseudo-surgery functional brain magnetic resonance imaging scan. MCI was classified within both (MCI surgery, n = 13; MCI non-surgery, n = 10). Using standard coordinates, we defined default mode network, salience network, central executive network, and the visual network (serving as a control network). The functional connectivity of these networks and brain areas (nodes) that make up these networks were examined for pre-post-surgery changes through paired samples t-test and ANOVA. Results: There was a decline in RSN connectivity after surgery ( p < 0.05) only in the three cognitive networks (not the visual network). The default mode and salience network showed nodal connectivity changes ( p < 0.01). MCI surgery had greater functional connectivity decline in DMN and SN. Non-surgery participants showed no significant functional connectivity change. Conclusion: Surgery with general anesthesia selectively alters functional connectivity in major cognitive resting state networks particularly in DMN and SN. Participants with MCI appear more vulnerable to these functional changes.
Prioritizing Benefits: A Content Analysis of the Ethics in Dementia Technology Policies
Authors: Robillard Julie M. , Wu Julia M. , Feng Tanya L. , Tam Mallorie T. 
Published: May 2019

Background: As the global prevalence of dementia rises, care costs impose a large burden on healthcare systems. Technology solutions in dementia care have the potential to ease this burden. While policies exist to guide and govern the use of dementia care technologies, little is known about how ethical considerations are incorporated into these documents. Objective: The goal of this study was to examine ethics-related content in dementia care technology policies. Methods: We used a two-step data mining approach to collect a sample of dementia technology policies. Policy documents were analyzed using emergent content analysis. Following the coding of the sample, thematic categories were organized using the principles of biomedical ethics as a framework. Results: A total of 23 policy documents from four Alzheimer associations in four countries were included in our analysis. General ethics considerations and themes related to beneficence were mentioned in 96% of the documents. Thematic categories related to justice were present in 74% of the sample, themes related to non-maleficence appeared in 52% of documents, and themes related to autonomy appeared in 43% of the sample. Conclusion: While ethical considerations are present in existing policies for dementia care technology, these considerations revolve primarily around the benefit of the technologies. Further efforts are needed to provide formal guidance that incorporates both benefits and potential harms.
Pengaruh Suhu Interesterifikasi RBDPO/RBDPS Terhadap Komposisi Trigliserida dan Nilai Kandungan Lemak Padat dalam Pembuatan Lemak Margarin
Authors: Ginting Mimpin , Kaban Jamaran , Sihotang Herlince , Tobing Hendri 
Published: May 2019

Pembuatan lemak margarin melalui interesterifikasi dalam industri merupakan suatu proses yang dapat digunakan menggantikan proses blendingan dan hidrogenasi. Salah satu faktor yang mempengaruhi proses interesterifikasi adalah suhu pemanasan. Dalam penelitian ini dilakukan pembuatan lemak margarin melalui proses interesterifikasi dari bahan dasar berbasis minyak kelapa sawit yaitu RBDPO dan RBDPS menggunakan katalis NaOCH 3 dan ingin diketahui pengaruh suhu proses interesterifikasi terhadap nilai kandungan lemak padat (SFC) dan komposisi trigliserida dari variasi suhu pada temperatur 70, 90, 110, 130 dan 150 °C menggunakan perbandingan campuran RBDPO : RBDPS = 70 :30 dan 80:20 (b/b). Komposisi trigliserida hasil interesterifikasi ditentukan melalui analisis kromatografi gas, sedangkan nilai SFC melalui fulsa NMR. Hasil penelitian menunjukkan bahwa pengaruh suhu pemanasan terhadap proses interesterifikasi RBDPO : RBDPS baik pada rasio 70 : 30 maupun 80: 20 (b/b) dapat memberikan perubahan komposisi trigliserida maupun nilai SFC dari lemak margarin yang dihasilkan.

The production of margarine fat through interesterification in industry is a process that can be used to replace blending and hydrogenation processes. One of the factors that influence the interesterification process is the heating temperature. In this study, margarine fat was produced through the interesterification process of palm oil based materials namely RBDPO and RBDPS using NaOCH3 catalyst. It was aimed to find the effect of the interesterification process temperature on the value of solid fat content (SFC) and triglyceride composition from temperature variations at 70, 90, 110, 130 and 150 °C use a mixed ratio of RBDPO: RBDPS = 70 : 30 and 80 : 20 (w /w). The composition of triglycerides from the results of interesterification was determined through gas chromatography analysis, while the value of SFC was determined with NMR module. The results showed that the effect of the heating temperature on the interesterification process of RBDPO: RBDPS was at the ratio of 70: 30 and 80: 20 (w / w) and could cause a change in the composition of triglycerides and SFC values ​​of margarine fat produced.
Analisis Kandungan Asam Lemak Omega 3 dan Omega 6 pada Minyak Ikan Mas (Cyprinus Carpio)
Authors: Pandiangan Maruba , Kaban Jamaran , Wirjosentono Basuki , Silalahi Jansen 
Published: May 2019

Penelitian ini bertujuan untuk mengetahui komponen asam lemak omega-3 dan omega-6 pada minyak ikan mas. Penelitian ini dilakukan di Laboratorium Pengolahan Pangan Fakultas Pertanian Universitas Katolik Santo Thomas, Medan. Pelaksanaan penelitian ini dilakukan pada bulan Agustus 2016 hingga Oktober 2016. Minyak ikan mas diperoleh dengan menggunakan proses rendering kering. Dari uji sifat fisika kimia diperoleh semakin besar nilai angka asam maka semakin rendah kualitas minyaknya, semakin kecil angka peroksida maka kualitas minyak semakin baik, bilangan iod yang tinggi menunjukkan bahwa minyak tersebut mengandung asam lemak tak jenuh yang banyak, semakin besar bilangan penyabunan yang dihasilkan maka minyak memiliki berat molekul yang lebih rendah. Hasil analisis minyak ikan dengan GC-MS didapat komposisi asam lemak sebagai berikut: asam lemak jenuh sebanyak 27,54%, asam lemak tidak jenuh tunggal sebanyak 43,92%, asam lemak tidak jenuh jamak sebanyak 21,25%. Asam lemak omega 3 sebanyak 2,83% yang terdiri dari asam linolenat 1,49%, asam eikosatrienoat 0,87%, asam eikosapentaenoat 0,11%, asam dekosaheksaenoat 0,36%, dan omega 6 sebanyak 17,36% yang terdiri dari asam linoleat 16,44%, asam arakhidonat 0,92%, Nilai gizi minyak ikan mas belum memenuhi komposisi ideal nilai gizi minyak ikan, dimana perbandingan ketiga jenis asam lemak belum memenuhi perbandingan 33,33% dan total penyimpangan sangat tinggi.

This study aimed to determine the components of omega-3 and omega-6 fatty acids in carp oil. This research was conducted at the Food Processing Laboratory of the Faculty of Agriculture, Santo Thomas Catholic University, Medan. The implementation of this research was conducted from August 2016 to October 2016. Carp oil was obtained using a dry rendering process. From the test of physical chemical properties obtained, the greater the value of the acid number, the lower the quality of the oil. It also showed that the smaller the peroxide number, the better the quality of the oil. The higher iodine number indicated that it contained many unsaturated fatty acids; therefore, the greater the saponification number the oil resulted, the lower molecular weight it obtained. The results of analysis of fish oil with GC-MS, showed the following fatty acid compositions: 27.54% saturated fatty acids, 43.92% monounsaturated fatty acids, and 21.25% plural unsaturated fatty acids. Omega-3 fatty acids were 2.83% consisting of 1.49% linolenic acid, 0.87% eicosapenoic acid, 0.11% eicosapentaenoic acid, 0.36% decosahexaenoic acid. It also resulted 17.36% omega-6 consisted of from linoleic acid 16.44%, arachidonic acid 0.92%. The nutritional value of goldfish oil did not meet the ideal composition of nutritional value of fish oil, where the ratio of the three types of fatty acids had not met the ratio of 33.33% and the total deviation was very high.