Chemical Constituents of Murraya Koenigii (Rutaceae) and Their Biological Activities

The study on Murraya koenigii (curry leaf) involves extraction, separations by using various chromatographic methods and structural determination by spectroscopic techniques such as IR, NMR including 2D-NMR and MS. The structures of the compounds were also elucidated by comparison with the previous work. Isolation works on stem bark of the plant yielded mahanimbine (31), girinimbine (32), murray anine (47), murrayazoline (48), murrayacine (49) and sucrose (50). From the leaves, five compounds were isolated and elucidated. Two of them were long chain compounds, Il-decylhenecosane (51a) and methoxydotriacontane (51b), isolated as a mixture and the other compounds were mahanimbine (31), ethyl octadecanoate (52) and mahanine (53). Further study on the roots of the same plant afforded four compounds including girinimbine (32), murrayanine (47), together with 3-methylcarbazole (54) and murrayafoline A(55).Crude extract and isolated compounds from various part of this plant were screened for antimicrobial activity using disc diffusion method, cytotoxic activity using rnicrotitration method and antitumor promoting activity using Epstein B arr virus activation assay. The crude extracts of the roots and pure isolated compound including mah animbine (31) , girinimbine (32), mahanine (53) and murrayafoline A (55) exhibited significant cytotoxicity activity against CEM-SS cell line with IC₅₀ 3 µg/ml. G irinimbine (32), although did not show any cytotoxic activity against CEM-SS cell line, the compound however inhibited EBV-activation (100%) in the antitumor promoting assay . The pet.ether, CHCl₃ and MeOH crude extracts of leaves, the methanol extract of stem bark, mah animbine (31) and girinimbine (32) failed to show significant antimicrobial activity, while the pet.ether and the chloroform crude extracts of the stem bark exhibited weak antibacterial activity against Bacillus cereus

Dukungan Emosional Keluarga dengan Kejadian Hipertensi di Puskesmas Cipondoh

Hipertensi merupakan masalah terbesar dan serius diseluruh dunia karena prevalensinya tinggi dan cendrung meningkat dimasa yang akan datang. Hipertensi dapat menyerang hampir semua golongan masyarakat didunia. Kota Tangerang merupakan salah satu kota dari delapan Kabupaten/ kota yang ada di Provinsi Banten dengan hipertensi. Jenis penelitian ini merupakan penelitian kuantitatif dengan metode analitik menggunakan desain cross sectional. Tempat penelitian dilakukan di Puskemas Cipondoh Kota Tangerang, sampel 90 responden. Teknik pengambilan sampel yang digunakan dalam penelitian ini adalah metode Purposive Sampling dengan teknik Non Probability Sampling. Hasil penelitian terdapat tekanan darah normal 38 responden (42.2%) dan teknan darah tidak normal sebanyak 52 responden (57.8%) dan hasil dukungan emosional kelurga yang baik sebanyak 39 responden (43.3%) dan dukungan emosional keluarga yang kurang baik sebanyak 51 responden (56.7%) hasil uji statistic chi square nilai P value 0,00 <α=0,05 maka Ha diterima dan dapat disimpulkan bahwa ada hubungan yang bermakna antara hubungan dukungan emosional keluarga dengan kejadian hipetensi pada lansia di Puskesmas Cipondoh Kota Tangerang tahun 2019. Diharapkan puskesmas pada saat melaksanakan program kunjungan rumah, diharapkan memotivasi kepada keluarga yang memiliki lansia hipertensi untuk dapat memberikan perhatian, kasih sayang mendengarkan keluhan lansia. Kata Kunci: Dukungan emosional, hipertensi,lansi

Magnetohydrodynamic (MHD) Jeffrey fluid over a stretching vertical surface in a porous medium

This paper presents the study of steady two-dimensional mixed convection boundary layer flow and heat transfer of a Jeffrey fluid over a stretched sheet immersed in a porous medium in the presence of a transverse magnetic field. The governing partial differential equations are reduced to nonlinear ordinary differential equations with the aid of similarity transformation, which are then solved numerically using an implicit finite difference scheme. The effects of some of the embedded parameters, such as Deborah number β, magnetic parameter M, mixed convection parameter λ, porosity parameter γ and Prandtl number Pr, on the flow and heat transfer characteristics, are given in forms of tables and graphs

Magnetohydrodynamic Three-Dimensional Flow and Heat Transfer over a Stretching Surface in a Viscoelastic Fluid

In this paper, the problem of steady laminar three-dimensional magnetohydrodynamic (MHD) boundary layer flow and heat transfer over a stretching surface in a viscoelastic fluid is investigated. The equations which govern the flow are coupled nonlinear ordinary differential equations, which are solved numerically using a finite-difference scheme known as the Keller-box method. Various physical governing parameters such as the magnetic parameter M, the material or viscoelastic parameter K and the Prandtl number Pr are considered and the effects of these parameters are investigated. It is found that the material parameter K and the magnetic parameter M present opposite effects on the fluid flow and heat transfer characteristics. The numerical results obtained for the skin friction coefficient and the local Nusselt number are presented in tables. The features and profiles of the flow and heat transfer characteristics are illustrated in the forms of graphs

Falkner-skan solution for gravity-driven film flow of a micropolar fluid

In this paper, the steady Falkner-Skan solution for gravity-driven film flow of a micropolar fluid is theoretically investigated. The resulting nonlinear ordinary differential equations are solved numerically using an implicit finite-difference scheme. The results obtained for the skin friction coefficient as well as the velocity and microrotation or angular velocity profiles are shown in table and figures for different values of the material or micropolar parameter K

Mixed convection casson fluid flow over an exponentially stretching sheet with Newtonian heating effect

This paper deals with mixed convection of Casson fluid which flows over a heated surface that has been stretched exponentially. The governing equations that govern the fluid flow are reduced to ordinary differential equations by imposing suitable similarity variables. Numerical computational was carried out to solve for the f “(0) and θ (0) for some arbitrary values of the mixed convection parameter λ, Biot number Bi and Newtonian fluid parameter β when Pr =7

Promoting libraries through wall : Needs, wants and opportunities

Most of the libraries nowadays were changing their promotion strategy by utilizing online social network such as Facebook as a channel to reach their services to the public. Libraries in Malaysia were not left behind in using this opportunities as a platform to promote their services towards the patrons a whole. However, there are still some limitations for the libraries in Malaysia to use Facebook applications thoroughly. Libraries in Malaysia need to do some research and observations to the maximum by utilizing the Facebook application in order for them to attract more patrons utilizing the Facebook that was developed by libraries.Facebook is developed as a medium for the patrons in getting to know the latest information, events, resources, products and services available in the libraries. This paper will focus on the barriers and limitations face by the librarians in using the Facebook towards promoting libraries resources, services, events, products and etc. Moreover, this paper also will discuss on how the libraries in Malaysia promoting their services as compare to the others international libraries. Standard frameworks of Facebook applications will be developed and used by Malaysian Libraries to ensure that they can utilize the Facebook successfully

Developing Speaking Course Book for English Department Students

The study aims at describing the development process, the quality, and the practicality of Speaking Course Book entitled Speaking for Daily Activities for English Department students of the private university in West Surabaya. It employs Design and Development Research (DDR) and uses Richey and Klein’s model of DDR collaborated with Richard’s model of material development. The development processes of the book support Richey and Klein’s model of DDR, Richards’ model of development material and material development for speaking skills proposed by Bao. The mean score of items in evaluation checklist is 3.80 meaning that the quality of the book is very good, and it fully matches the characteristics of a good speaking course book. The appraisal forms show that both the lecturer and the students could use the book very easily. Also, the mean score of items in observation checklist is 3.65 meaning the practicality of the book is very good. Penelitian ini bertujuan untuk mendeskripsikan proses pengembangan, kualitas, dan  kepraktisan Speaking Course Book untuk mahasiswa Jurusan Bahasa Inggris sebuah universitas swasta di Surabaya Barat, yaitu Speaking for Daily Activities.  Penelitian ini merupakan Penelitian Pengembangan yang menggunakan kolaborasi antara model Richey and Klein dalam Penelitian Pengembangan dan model pengembangan materi dari Richard. Proses pengembangan buku ajar mendukung model Penelitian Pengembangan dari Richey and Klein, model pengembangan materi dari Richards, dan pengembangan materi untuk keterampilan berbicara oleh Bao. Skor rata-rata item dalam daftar evaluasi adalah 3,80, yang berarti kualitas buku sangat bagus dan sangat sesuai dengan karakteristik buku ajar berbicara yang baik. Kepraktisan buku sangat baik. Hal ini bisa dilihat dari form isian yang menunjukkan bahwa dosen dan mahasiswa dapat menggunakan buku tersebut dengan sangat mudah. Selain itu, skor rata-rata item dalam daftar pengamatan adalah 3,65 yang berarti sangat bagus

Variable viscosity of casson fluid flow over a stretching sheet in porous media with Newtonian heating

Casson fluid flow with variable viscosity in porous media over a heated stretching sheet is investigated. The partial differential equations representing the flow motion are first transformed to ordinary differential equations by similarity transformation before being solved numerically by the finite-difference method. The effects of the viscosity variation parameter (Ω), the permeability number (κ), Prandtl number (Pr), Biot number (Bi) and non-Newtonian fluid parameter (β) on the fluid flow and heat transfer, along with the temperature and velocity profiles, are presented graphically for some arbitrary values