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Synthesis of lithium mangan dioxide (LiMn2O4) for lithium-ion battery cathode from various lithium sources
(2018)LiMn2O4 as a cathode material has been synthesized via solid state reaction. The synthesis has been done by varying lithium sources such as LiOH.H2O and Li2CO3 while MnO2 was used as Mn sources. All raw materials were ... -
The effect of temperature on synthesis of MgFe2O4 based on natural iron sand by Coprecipitation method as adsorbent Pb ion
(2018)Magnetic materials of magnesium ferrite (MgFe2O4) based on natural iron sand has been successfully prepared as an adsorbent of Pb ions. This material was synthesized by coprecipitation method with natural iron and ... -
Model Pengembangan Minat Wirausaha Siswa Sekolah Menengah Kejuruan (SMK) di Sumatera Utara
(2018)Tujuan daripada penelitian ini adalah untuk mengetahui minat wirausaha siswa Sekolah Menengan Kejuruan (SMK),kendala-kendala yang dihadapi dalam menumbuhkan minat wirausaha siswa SMK di Sumatera Utara, dan menemukan model ... -
The Influence of Social Capital Towards the Quality of Community Tourism Services in LAKE Toba Parapat North Sumatera
(2018)The objective of the research was to analyze the influence of social capital towards the quality of community tourism service In Lake Toba Parapat North Sumatera. The method used the combination between quantitative and ... -
Centelloside Content of Cultivated Pegagan (Centella asiatica) with Application of Phosphorous Fertilizer
(2018)Centella asiatica was one of the wild plants that widely exploited from nature. The objective of this study was to obtain potential plant material that could be used as seeds with high centelloside content and obtain plant ... -
Production Enhancement Technology of Pegagan (Celltella asiatica)
(2018)Centella asiatica has long been known as one of medicinal plants. Profound study is needed to be able to find out the responses of Pegagan to various treatments in order to increase centelloside content. It was also ... -
Increased expression of TGF-B in the cochlear fibroblast of diabetic model rats
(2018)The cochlea, as a microvascular organ, is very susceptible to conditions that result in a disruption of vascularisation. Transforming Growth Factor- B (TGF-B) plays a role in diabetic complication process, especially in ... -
Apoptotic effect of gentamicin in cochlea ototoxic rat model (preliminary study)
(2018)This study aimed to show the potency of gentamicin in increasing the apoptotic index in the cochlea lateral wall of ototoxic rat models. Eight Rattus norvegicus were divided into two groups: 1) control and 2) gentamicin ... -
Bureaucratic Knowledge of The Quality of Tourism Service in Lake Toba Parapat North Sumatera
(2018)The purpose of this research was to determine and analyze Bureaucratic Knowledge of The Quality of Tourism Service In Lake Toba Parapat North Sumatera. Method of this research used by descriptive qualitative research ... -
Analysis of the Efficiency Performance of Sharia and Conventional Banks Using Stochastic Frontier Analysis
(2018)There are two sectors of banks operating in Indonesia, namely Sharia banks and conventional banks. Improving performance is important in maintaining public confidence in the bank. Efficiency is one of the parameters to ... -
Factors Affecting the Financing of Profitability Using Non Performing Financing as Moderating Variable in Sharia Business Unit of Bank Sumut (Bank of North Sumatera) in North Sumatera
(2018)Shariah financing has also various kinds of agreement. Its fund has be distributed to low risky sector in order to produce the optimal income in the preparation of Bank Sumut UUS for spin off in 2018. The objective of the ... -
The Antiapoptotic Effect of Curcumin in the Fibroblast of the Cochlea in an Ototoxic Rat Model
(2018)Introduction: This study aimed to show the potency of curcumin as an antiapoptotic agent that decreases the apoptotic index in the cochlea lateral wall in ototoxic rat models. Materials and Methods: A total of 24 Rattus ... -
Phytochemical Screening and Anti-Inflammatory Activity of Fractions from Sambung Rambat (Micania Cordata) Leaf
(2018)Objective: The present study is to evaluate the anti-inflammatory activity of various fractions from Sambung Rambat leaf (Micania cordata) using ethyl acetate, hexane, and water solvent as the solvent. Methods: Investigation ... -
Pengaruh Penambahan Doping Mn/Cu pada Barium Heksaferit sebagai Material Penyerap Gelombang
(2018)In this study, the effect of 0.1%mol Mn/Cu dopants on barium hexaferrite structure as microwave absorbing materials have been investigated. The material synthesis was performed by mechanical alloying method using planetary ... -
Effect of Sintering Temperature on the Microstructure, Electrical and Magnetic Properties of Zn0.98 Mn0.02o Material
(2018)Zn0.98Mn0.02O material was synthesized from ZnO and MnO2 powders using solid state reaction method. The microstructure, electrical and magnetic properties of Zn0.98Mn0.02O were studied as a function of sintering temperature. ... -
Production of Bioplastic From Avocado Seed Starch Reinforced With Microcrystalline Cellulose From Sugar Palm Fibers
(2018)The influence of microcrystalline cellulose derived from sugar palm fibers and glycerol on the mechanical properties of bioplastics from avocado seed starch was studied. Sugar palm fibers underwent alkali treatment, ... -
The Effect of Increasing Chitosan on the Characteristics of Bioplastic From Starch Talas (Colocasia Esculenta) Using Plasticizer Sorbitol
(2018)The aims of this research to determine the profile of starch gelatinization, bioplastic and the effect of increasing chitosan and sorbitol to the properties of tensile strength and elongation of break bioplastic. Preparation ... -
Foramen Magnum Meningiomas and Its Approaches
(2018)Introduction: Foramen magnum meningiomas arise from arachnoid at the craniospinal junction. The foramen magnum contains several critical neuroanatomical and vascular structures of which the surgeon must be aware.Classic ... -
Transphenoidal Approach in Sellar Region Tumor
(2018)IntroductionsEndoscopes have two advantages relative to operating microscopes: they provide a wide panoramic view of the surgical field through a narrow corridor as well as images of the surrounding anatomy, including ... -
Analisis dan Karakterisasi Pembuatan Genteng Polimer Berbahan Baku Limbah Padat Karet Industri
(2018)Polymer's roofhas been done using solid waste in rubber gloves industry with the best mixing composilionfrom the making of polymer 's roof Samples from any composition which is done thus being pressed by hot compressor ...