http://repository.uhamka.ac.id/id/eprint/17183/
Peer Review Artikel berjudul Antifertility Effect of The Ethanol Extract of Centella asiatica L. Urban Against The White Rat (Rattus novergicus L.) in The Early Post-Implantation
Yuni, Astuti
http://repository.uhamka.ac.id/id/eprint/17183/1/Peer%20review%20Pak%20Susilo%202018.pdf
http://repository.uhamka.ac.id/id/eprint/17190/
Implementation of Moodle platform to acquire the students’
Ishaq, Nuriadin
http://repository.uhamka.ac.id/id/eprint/17190/1/Improving%20Students%27%20Mathematical%20Problem-solving%20Skills%20with%20The%20REACT%20Model.pdf
http://repository.uhamka.ac.id/id/eprint/17191/
Cek Similarity Artikel Nyawer as a Unique Local Tradition at School Graduation Events in Indonesia
Bandarsyah, Desvian
http://repository.uhamka.ac.id/id/eprint/17191/1/Nyawer%20as%20a%20Unique%20Local%20Tradition%20at%20School%20Graduation%20Events%20in%20Indonesia.pdf
http://repository.uhamka.ac.id/id/eprint/17185/
LITERASI LINGKUNGAN, PERSONALITY DAN PERILAKU PROLINGKUNGAN
Gufron Amirullah, Gufron
http://repository.uhamka.ac.id/id/eprint/17185/1/Literasi%20Lingkungan%2C%20Personality%20dan%20Perilaku%20Prolingkungan.pdf
http://repository.uhamka.ac.id/id/eprint/17178/
MONOGRAF DARI HASIL PENELITIAN
MENINGKATKAN KEMANDIRIAN SISWA ABK
MEMBUAT MINUMAN KHAS BETAWI (BIR PLETOK)
MELALUI MEDIA MICROSOFT POWER POINT
(SLBN 02 JAGAKARSA)
Connie Chairunnisa, Connie
http://repository.uhamka.ac.id/id/eprint/17178/1/Buku%20Monograf%20QRCBN.pdf
http://repository.uhamka.ac.id/id/eprint/17180/
ISOLASI DAN IDENTIFIKASI SENYAWA PENGHAMBAT
ARGINASE DAN ANTIOKSIDAN DARI TANAMAN
GENUS Sterculia
Rini Prastiwi, Rini
Nama : Rini Prastiwi
Program Studi : Doktor Ilmu Farmasi
Judul Desertasi : Isolasi Dan Identifikasi Senyawa Penghambat Arginase Dan
Antioksidan Dari Tanaman Genus Sterculia
Pembimbing : Promotor : Prof. Dr. Berna Elya, M.Si., Apt.
Kopromotor : 1. Prof. Dr. Muhammad Hanafi, M.Sc.
2. Rani Sauriasari, M.Med.Sci., Ph.D., Apt.
Arginase (L-arginine ureahydrolase) adalah enzim yang berperan dalam siklus
urea. Arginase juga memainkan peran penting dalam produksi nitrat oksida (NO).
Gangguan keseimbangan NO merupakan kontributor terjadinya gangguan fungsi
endotel pembuluh darah. Senyawa fenol dan flavonoid diketahui mempunyai
aktivitas penghambatan arginase. Genus Sterculia kaya dengan senyawa fenol dan
flavonoid. Penelitian ini bertujuan untuk mendapatkan senyawa dari tanaman genus
Sterculia yang mempunyai aktivitas penghambatan arginase. Penelitian diawali
dengan skrining dari 5 tanaman genus Sterculia yaitu: S. macrophylla, S. comosa,
S.parkinsonii, S.rubiginosa, S.stipulata. Bagian yang digunakan adalah daun dan
kayu. Ekstrak diuji aktivitas inhibitor enzim arginase dan antioksidan dengan
metode DPPH dan FRAP. Ekstrak yang aktif adalah ekstrak metanol kayu Sterculia
comosa dan ekstrak metanol kayu Sterculia macrophylla. Ekstrak aktif dipisahkan
dengan kromatografi kolom vakum menjadi fraksi. Tiap fraksi di uji aktivitas
inhibitor enzim arginase dan antioksidan dengan metode FRAP dan DPPH. Fraksi
dilanjutkan diisolasi menggunakan kromatografi kolom dan Kromatografi Lapis
Tipis Preparatif sampai didapatkan isolat. Hasil isolat diidentifikasi dengan FTIR,
1H-NMR,13C-NMR, HSQC, HMQC, HMBC, LCMSMS. Sterculia comosa (kayu
comosa/KC) didapatkan isolat KC4.4.6 asam (-)-2-(E)-kafeoil-D-gliserat, dan
KC4.4.5.1 adalah asam trans-isoferulat, yang merupakan turunan sinamat. Sterculia
macrophylla (kayu macrophylla/KM) diperoleh senyawa senyawa KM3.9.1
merupakan 3β-5α,6α-epoksi-3-hidroksi-7-megastigmen-9-on. Senyawa KM3.5.M
merupakan asam pikolinat, dan Senyawa KM-1 merupakan campuran β-sitosterol
dan stigmasterol. Hasil uji aktivitas inhibitor enzim arginase diperoleh nilai IC50
untuk isolat KM3.9.1: 59,31µg/ml, KM3.5.M: 73,98 µg/ml, KC4.4.6: 98,03 µg/ml,
KC4.4.5.1: 292,58 µg/ml, dan KM1: 140,56 µg/ml, kontrol positif nor-NOHA:
3,97 µg/ml. Aktivitas antioksidan metode DPPH didapatkan nilai IC50 isolat
KM3.9.1:92,60 µg/ml, KM3.5.M: 106,42 µg/ml, KC4.4.6: 48,77 µg/ml, KC4.4.5.1:
88,08 µg/ml dan KM1: 185,09 µg/ml, kontrol positif kuersetin: 5,63 µg/ml.
Aktivitas antioksidan dengan metode FRAP KM3.9.1: 10,76 FeEAC (Mol/g),
KM3.5.M: 5,79 FeEAC (Mol/g), KC4.4.6: 16,40 FeEAC (Mol/g), KC4.4.5.1: 15,79
FeEAC (Mol/g) KM-1: 11,89 FeEAC (Mol/g), kontrol positif kuersetin: 1201,61
FeEAC (Mol/g). Isolat KM3.9.1 (3β-5α,6α-epoksi-3-hidroksi-7-megastigmen-9-
on) merupakan senyawa yang mempunyai aktivitas sebagai inhibitor enzim yang
paling baik, sedangkan aktivitas antioksidan yang paling baik adalah isolat
KC4.4.6/asam (-)-2-(E)-kafeoil-D-gliserat.
http://repository.uhamka.ac.id/id/eprint/17180/1/DISERTASI%20JPEG_RINI_FIX.pdf
http://repository.uhamka.ac.id/id/eprint/17176/
Design and Simulation of MEMS Electrostatic Resonator for Ammonia Gas Detection Based on SOIMUMPs
Ba Hashwan, Saeed S
The analytical modeling, design, and simulation of micromachined MEMS resonator for ammonia gas detection
is presented in this paper. The MEMS resonator is designed to be vibrated electrostatically using interdigitated comb fingers. The demonstrated device is designed to be capable to carry micro-ring resonator and vibrated in-plane laterally to enhance the sensitivity of the gas detection. This MEMS resonator working principle is based on the changes in the output signal wavelength due to the change in the effective refractive index introduced by the ammonia gas. The resonant frequency of the actuator and the pull-in voltage have been calculated theoretically and found to be 11.15 kHz and 79.7 V respectively. The design and simulation of the micromachined microresonator has been carried out using CoventorWare software. Furthermore, the mathematically modeled results were verified using the finite element analysis software and the result shows a good agreement within 1.06% error between the modeled and simulated frequencies where the modeled and the simulated frequencies are found to be 11.15 kHz and 11.27 kHz respectively.
http://repository.uhamka.ac.id/id/eprint/17176/1/Design_and_Simulation_of_MEMS_Electrostatic_Resonator_for_Ammonia_Gas_Detection_Based_on_SOIMUMPs.pdf
http://repository.uhamka.ac.id/id/eprint/17184/
Peer Review Artikel berjudul The Effectiveness of Sludge in The Leaf Fermentation Process
Yuni, Astuti
http://repository.uhamka.ac.id/id/eprint/17184/1/Peer%20Review%20Pak%20Budhi%202021.pdf
http://repository.uhamka.ac.id/id/eprint/17175/
2-D Modes Analysis of Micro-Ring Resonator:In case of chemical vapor sensing
Ramza, Harry
This paper describes 2-D modes analysis on the waveguide structure. Micro – Ring Resonator formation was simulated to able the chemical vapor detection by using COMSOL Multiphysics application. We present the simulation of mode analysis from a Micro-ring Resonator as sensing the chemical vapor. By implementing the device parameters. We have seen from the simulator that the optical mode is handled equally within the ring. Using the variation of effective refractive index, our simulator result of ring resonator generated the mode analysis in two-dimension perspective. We conclude that the ring resonator device has potential for generating the certain wavelength.
http://repository.uhamka.ac.id/id/eprint/17175/1/2-D_Modes_Analysis_of_Micro-Ring_Resonator_In_case_of_chemical_vapor_sensing.pdf
http://repository.uhamka.ac.id/id/eprint/17195/
Implementation of Moodle platform to acquire the students’
knowledge and science process skills
Budi, Akbar
http://repository.uhamka.ac.id/id/eprint/17195/1/24.%20Implementation%20of%20Moodle%20platform%20to%20acquire%20the%20students%E2%80%99%20%281%29.pdf