Browsing Faculty of Mathematics and Natural Sciences by Type "Disertasi Doktor"
Now showing items 1-20 of 209
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Adhesi Penguat Serbuk PULP Tandan Kosong Sawit Teresterifikasi dengan Matriks Poletilena
(Universitas Sumatera Utara, 2009)Pulp Tandan kosong sawit (TKS) yang berasal dari limbah tandan kosong sawit mengandung lignoselulosa yang cukup tinggi dapat dimanfaatkan sebagai penguat komposit Polietilena (PE). Namun adhesi antara pulp TKS di dalam ... -
Algoritma Interaktif untuk Memecahkan Masalah Nonlinear Integer Goal Programming
(Universitas Sumatera Utara, 2020)In this dissertation the writer presents the nonlinear integer goal programming problem using interactive algorithms, the purpose of this study in detail can develop algorithms and solve nonlinear integer goal programming ... -
Analisa Degradasi Oksidasi Karet Alam Siklis (Resiprene-35) Akibat Penyimpanan, Pemanasan dan Sinar Ultraviolet
(Universitas Sumatera Utara, 2016)Research on analysis oxidative degradation and stabilization of cyclic natural rubber (resipren-35) using wax commercial antioxidants, BHT, and Wingstay has been conducted. Properties of physics as a result of treatment ... -
Analisis Apoptosis Jalur Ekstrinsik pada Karsinoma Sel Skuamosa Rongga Mulut Tikus (Rattus norvegicus) dengan Pemberian Nanoherbal Sikkam (Bischofia javanica) dan Mahkota Dewa (Phaleria macrocarpa)
(Universitas Sumatera Utara, 2024)Oral squamous cell carcinoma (OSCC) is a common type of cancer in the head and neck region, particularly prevalent in Southeast Asia due to the consumption of tobacco with betel and areca nuts. In tobacco, Benzo(alpha)pyrene ... -
Analisis Biomolekuler dan Sifat Patogenesitas Ganoderma Terhadap Penyakit Busuk Pangkal Batang pada Tanaman Kelapa Sawit (Elaeis Guinensis)
(Universitas Sumatera Utara, 2008)Biomolekuler analysis and photogenesity test of Ganoderma, causal agent of basal stem rot (BSR) disease on oil palm (Elaeis Guinensis) have been carried out. The identification and characterization were preceded by ... -
Analisis Cannabinoid dari Rambut Pengguna Narkotika Jenis Ganja (Cannabis sativa L.) Menggunakan Teknik GCMS
(Universitas Sumatera Utara, 2016)Analysis of cannabinoids in hair of marijuana (Cannabis saliva L) can be done using samples of urine, blood and hair. This study used hair because the inspection can be performed after 72 hours of use by the user, this ... -
Analisis Efektivitas Nanoherbal Buah Andaliman (Zanthoxylum Acanthopodium) dan Nanoherbal Daun Haramonting (Rhodomyrtus Tomentosa) terhadap Luka Bakar Tikus (Rattus Norvegicus L.) Diabetes Mellitus
(Universitas Sumatera Utara, 2022)The prolonged burn wound healing time caused by hyperglycemia has caused damage or decreased production of cytokines, including growth factors and receptors, thus interfering with macrophage function, angiogenesis, ... -
Analisis ekspresi protein transduksi sinyal pada tikus (Rattus novergius) preeklampsia dengan pemberian nanoherbal buah andaliman (Zanthoxylum acanthopodium) dan Extra Virgin Olive Oil (EVOO)”
(Universitas Sumatera Utara, 2021)Preeclampsia is hypertension in pregnancy that can interfere with fetal growth as well as disruption of the cellular conservative mechanism of signal transduction (autophagy). Andaliman is an endemic plant from North ... -
Analisis Imunostimulan Ekstrak Etanol Daun Pirdot (Saurauia vulcani Korth.) pada Tikus (Rattus norvegicus L.)
(Universitas Sumatera Utara, 2020)The purpose of this study was to analyze ethanol extract of pirdot leaves in rats. The parameters evaluated were rat erythrocytes, leukocytes, lymphocytes, IgG, Interleukin-2, activity, spleen histopathology, liver ... -
Analisis Kadar Metamfetamin dalam Rambut Pengguna Sabu-Sabu Menggunakan Metode Kolom Ekstraksi dengan Nanobentonit Alam Sebagai Adsorben dan Gas Chromatography Mass Spectrometry (GCMS)
(Universitas Sumatera Utara, 2020)Analisis metamfetamin pada rambut pengguna narkotika jenis sabu- sabu dapat dilakukan dengan menggunakan sampel urine, darah dan rambut. Penelitian ini menggunakan sampel rambut karena pemeriksaaan dapat dilakukan setelah ... -
Analisis Kestabilan Genetik Embrio Somatik Kelapa Sawit (Elaeis guineensis Jacq.) Hasil Kultur Suspensi
(Universitas Sumatera Utara, 2024)The regeneration pathway through in vitro oil palm plants (Elaeis guineensis Jacq.) has so far been through somatic embryogenesis, as this process is capable of producing embryos with bipolar structures resembling zygotic ... -
Analisis Optimalisasi Parameter Kinerja Sistem CDMA dengan Menggunakan Kanal Propagasi Gelombang Radio Empiris
(Universitas Sumatera Utara, 2014)A study has been made on the analysis of optimizing the performance parameters of the CDMA system using the empirical radio wave propagation channel. For the construction of this analysis have been developed modeling of ... -
Analisis Pertumbuhan dan Bioreproduksi Tiram Daging (Crassostrea gigas) di Perairan Pesisir Kota Banda Aceh
(Universitas Sumatera Utara, 2019)Tiram merupakan salah satu komoditas perikanan yang diminati oleh masyarakat Aceh, termasuk di Kota Banda Aceh. Eksploitasi berupa penangkapan berlebihan dan pencemaran pada perairan menyebabkan penurunan kuantitas maupun ... -
Analisis Vegetasi dan Identifikasi Tumbuhan Asing Invasif di Taman Wisata Alam (TWA) Sicike-Cike Sumatera Utara
(Universitas Sumatera Utara, 2022)Invasive alien plants are plant species that native species and diversity of plants species. The aims of the study were to analyze sustainability of tree vegetation types, demographic analysis of Rhododendron malayanum in ... -
Asap Cair Cangkang Kelapa Sawit sebagai Pengawet dan Jaringan Semi Interpenetrasi Polimer pada Kayu Kelapa Sawit
(Universitas Sumatera Utara, 2007)This research aim to improve the properties of palm oil wood by used liquid smoke from palm shell pyrolysis and formed semi-interpenetrating polymer network by used toluene diisosianat as active monomer with in situ ... -
Asosiasi Christmas Tree Worm (Spirobranchus) terhadap Ekosistem Karang di Perairan Pesisir Tenggara Pulau Weh Kota Sabang Provinsi Aceh
(Universitas Sumatera Utara, 2024)The coral ecosystem in the waters of Weh Island has experienced severe damage due to bleaching, so that the remaining coral colonies in the waters of Southeast Weh Island, namely Beurawang and Jaboi, are massive coral ... -
Bentonit Alam Terpilar sebagai Material Katalis/ Co-Katalis Pembuatan Gas Hidrogen dan Oksigen dari Air
(Universitas Sumatera Utara, 2007)Bentonite obtanained from Kecamatan Padang Tualang, Kabupaten Langkat was a Na–bentonite. This bentonite was saturated with 1 M NaCl solution for 1 day to enrich the Na–bentonite. Then the Na–bentonite was activated by ... -
Bioaktivitas Fraksi Etil Asetat dan Aktivitas Antidiabetes Senyawa Fenolik dari Daun Sirih (Piper betle L.)
(Universitas Sumatera Utara, 2019)This research studied the bioactivities of ethyl acetate fraction of methanol extract of betel leaves and antidiabetic activities of phenolic compounds from betel leaves. The extraction was done by macerating the betel ... -
Biosistematika Gandaria (Bouea) di Indonesia
(Universitas Sumatera Utara, 2017)Penelitian ini bertujuan untuk mengidentifikasi variasi marga Bouea berdasarkan karakter morfologi, molekuler menggunakan penanda ISSR (Inter Space Simple Repeat), kekerabatan menggunakan penanda cpDNA sekuen trnL-F ... -
Bootstrap Rata-Rata Bergerak Ganda Tertimbang Eksponensial dalam Proses Kontrol Multivariat
(Universitas Sumatera Utara, 2019)The purpose of this study is to build alternative methods of product quality control using Bootstrap Double Exponential Weighted Moving Average in Multiva- riate Process Control (MDEWMA). The data used in this study are ...