Karakteristik Fisik Dan Mekanik Beberapa Varietas Hanjeli Sebagai Dasar Mendesain Komponen Mesin

Kebutuhan pangan akan terus meningkat seiring dengan laju pertumbuhan jumlah penduduk yang terus naik. Pemenuhan kebutuhan pangan di Indonesia selama ini tergantung pada beras dan terigu, disamping bahan pangan lainnya seperti ubi kayu, jagung, dan sagu. Pengalihan fungsi lahan pertanian secara masal menjadi area pemukiman dan industri menghambat upaya peningkatan produksi beras. Oleh karena itu, perlu dikembangkan bahan pangan alternatif, salah satunya yaitu hanjeli. Hanjeli memiliki kandungan karbohidrat,protein dan kalsium yang sangat baik untuk dijadikan sebagai bahan pangan. Selain itu, hanjeli mudah dibudidayakan, di Jawa Barat, banyak ditemukan di daerah Garut, Ciamis, Sukabumi, Indramayu, dan Cirebon. Tujuan dari penelitian ini yaitu menguji karateristik fisik mekanik beberapa varietas hanjeli sebagai dasar dalam perancangan mesin penyosoh hanjeli. Metode penelitian yang digunakan adalah metode analisis deskriptif yaitu melakukan pengamatan, pengukuran, serta perhitungan terhadap karateristik fisik hanjeli. Penelitian ini dilaksakan di Laboratorium Pascapanen,  Departemen Teknik Pertanian dan Biosistem, Fakultas Teknologi Industri Pertanian Unpad. Secara umum varietas hanjeli yang diuji karakteristik fisiknya yaitu variets pulut dan Batu. Sedangkan parameter yang diuji meliputi: kadar air, kebulatan, densitas kamba, sudut repos, kekerasan dan nisbah hanjeli. Hasil Pengujian menunjukan bahwa hanjeli varietas batu hitam memiliki densitas, tingkat kekerasan, dan sudut repos yang paling tinggi dibandingkan dengan varietas yang lainnya. Sedangkan nisbah paling besar yaitu variets pulut paling tinggi dibandingkan dengan varietas yang lainnya. Sedangkan nisbah paling besar yaitu varietas pulut

Extrinsic noise driven phenotype switching in a self-regulating gene

Due to inherent noise in intracellular networks cellular decisions can be random, so genetically identical cells can display different phenotypic behavior even in identical environments. Most previous work in understanding the decision-making process has focused on the role of intrinsic noise in these systems. Yet, especially in the high copy-number regime, extrinsic noise has been shown to be much more significant. Here, using a prototypical example of a bistable self-regulating gene model, we develop a theoretical framework describing the combined effect of intrinsic and extrinsic noise on the dynamics of stochastic genetic switches. Employing our theory and Monte Carlo simulations, we show that extrinsic noise not only significantly alters the lifetimes of the phenotypic states, but can induce bistability in unexpected regions of parameter space, and may fundamentally change the escape mechanism. These results have implications for interpreting experimentally observed heterogeneity in cellular populations and for stochastic modeling of cellular decision processes.Comment: 5 pages, 4 figure

Factors Influencing the Adoption of Broadband Mobile Internet in Learning Organization: A Case of Postgraduate Students of UUM Kuala Lumpur

The Internet Broadband is supposed to have significant impact to organizations because they think that the Internet will create special value to their business. The business value of the Internet Broadband comes from the ability to derive strategic organization value from the Internet while at the same time, an organization have an obligation to disseminate information globally, communicate with various parties, and doing trade interactively with customized information and services for individual customers. The general purpose of this study was to find out whether a relationship between factors adoption of Broadband Mobile Internet (BMI), person characteristics and ICT characteristics of users. This study was conducted among the postgraduate student in Universiti Utara Malaysia (Kuala Lumpur Branch) where the study setting and sample selection will be determined by the convenience sampling method. Major findings shows that the significant positive relationships between factors adoption of Broadband Mobile Internet (BMI), person characteristics and ICT characteristics offer a clear indication of the importance of features to explain consumer acceptance behavior. The result of correlation, linear regression and multiple regressions in assessing the variables or the empirical relationship between person characteristics and ICT characteristics contribute were positively related to adoption as hypothesized. The positive association among all independent variables to dependent variable was supported. At the end, this study will recommend some idea on how to increases the quality of broadband usage with specific to university students in Malaysia

The characterisation of the peanut agglutinin an evolved plant lectin, with improved specificity to the Thompson Freidenriech antigen

Includes abstract.Includes bibliographical references.Peanut agglutinin (PNA), a carbohydrate binding protein, is able to recognise and bind a number of distinct carbohydrate structures that have been implicated in a number of disease pathologies in humans. In vitro studies of PNA have previously been shown to have some specificity for the Thomson Freidenriech antigen (T-antigen), found on malignant human cells, and this specificity has made PNA an important target for protein engineering experiments aimed at improving its specificity and affinity. A number of tumour cells are characterised by altered states and patterns of glycosylation on cell surfaces and suitably engineered lectins may be able to recognise tumour specific carbohydrate structures. This study was aimed at carrying out the biophysical characterisation of a set of PNA mutants which showed apparent improvement in specificity for the T-Antigen. Previous studies have aimed to engineer this lectin in order to direct its recognition properties towards the T-antigen and away from lactose, the preliminary binding affinities of these mutants being determined using Surface Plasmon Resonance (SPR). Here a set of PNA mutants were characterised, proteins expressed and purified to determine binding activities to the T-antigen, N-Acetyl-Dlactosamine (LacNAc) and lactose through the use of Protein Micro Array technology as well as Enzyme linked immunosorbant assays (ELISA)

João Gomes da Silva

Peer Reviewe

HUBUNGAN ANTARA PENGETAHUAN IBU DAN PENDAPATAN ORANG TUA DENGAN STATUS GIZI ANAK SDN 02 LABUHAN HAJI

Masalah gizi di Indonesia saat ini memasuki masalah gizi ganda. Artinya, masalah gizi kurang belum teratasi sepenuhnya, sementara telah muncul masalah gizi lebih. Di antara 33 provinsi di Indonesia, Aceh termasuk urutan ke-7 terendah dengan persentase gizi baik 41,1%, gizi lebih 11,76%, gizi kurang dan gizi buruk 23,5%. Penelitian ini bertujuan untuk mengetahui hubungan pengetahuan ibu dengan status gizi pada anak serta pendapatan orang tua dengan status gizi pada anak di SDN 02Labuhan Haji. Jenis penelitian ini analitik observasional dengan desain cross sectional. Sampel dalam penelitian ini adalah ibu dan siswa yang bersekolah di SDN02 Labuhanhaji diambil dengan cara random sampling dengan jumlah sampel 92 orang. Data yang diambil meliputi tingkat pengetahuan, pendapatan dan status gizi. Analisis data menggunakan uji Spearman. Hasil analisis data antara pengetahuan ibu dengan status gizi diperoleh p value 0,002 dan nilai r sebesar 0,313 dan pendapatan orang tua dengan status gizi diperoleh p value 0,293 dan nilai r 0,111. Kesimpulan, terdapat hubungan antara pengetahuan dengan status gizi anak dan tidak terdapat hubungan antara pendapatan orang tua dengan status gizi anak SDN 02 Labuhan Haji.Kata Kunci : Pengetahuan ibu, pendapatan orang tua, status gizi ana

Dois autores, duas culturas : um mesmo olhar sobre o sagrado

Livro de homenagem à professora Maria Laura Bettencourt Pire

Stochastic Simulations of Cellular Processes in Bacteria

Primer pla d'un edifici entre mitgeres. Consta de planta baixa, planta entresòl, tres plantes pis, planta terrat i amb un volum remuntat, reculat del pla de façana. La planta baixa i l'entresòl formen una gran peça