Junior Voice Recital:Andrew M. Jensen, Baritone

Kemp Recital Hall Saturday Evening March 25, 2000 8:30 p.m

Analisis Debit Limpasan Pada Perencanaan Sistem Underground Drainage Jalan Lingkar Tengah Makassar

Pembangunan Jalan Lingkar Tengah (Middle Ring Road) Makassar rencananya akan dilaksanakan secara bertahap, dimana tahap pertama direncanakan sepanjang 3,050 km mulai dari Jl. Perintis Kemerdekaan melintasi Jl. Dr. Laimena dan berakhir di Jl. Borong Raya dengan lebar total 42 m termasuk prasarana saluran drainase. Dalam pembangunan jalan harus dibarengi dengan sistem saluran drainase yang baik dimana sistem drainase tersebut mampu melayani air limpasan hujan yang terjadi di permukaan jalan dan kawasan – kawasan sekitar jalan yang akan membebani saluran – saluran drainase. Tujuan dari penelitian ini adalah untuk mengetahui  debit limpasan yang terjadi di kawasan Pembangunan Jl. Lingkar Tengah (Middle Ring Road) Makassar dan sekitarnya yang akan membebani saluran drainase jalan dan untuk  merencanakan dimensi saluran drainase tertutup (underground drainage) yang mampu mengalirkan debit aliran air maksimum. Hasil yang diharapkan adalah perencanaan sistem underground drainage sebagai alternatif pemecahan masalah banjir dan genangan pada ruas Jl. Lingkar Tengah (Middle Ring Road) Makassar

KAJIAN HIDROLIKA DAN ANALISIS KAPASITAS TAMPANG SUNGAI LEKOPANCING KECAMATAN TANRALILI KABUPATEN MAROS

Sungai Lekopancing adalah sebuah sungai di Kabupaten Maros, Provinsi Sulawesi Selatan, Indonesia. Beberapa kecamatan di sekitar Kabupaten Maros, seperti Tompobulu, Tanralili, dan Moncongloe, serta Kota Makassar bagian utara dan timur, mengandalkan Sungai Lekopancing sebagai suplai air baku dan air bersih untuk memenuhi kebutuhannya. Selain berdampak baik bagi manusia, akan tetapi sungai juga dapat berdampak buruk seperti yang sering terjadi ialah banjir. Penelitian ini bertujuan menganalisis kondisi hidrolis serta kalkulasi kapasitas tampang Sungai Lekopancing melalui program komputasi Hec-Ras. Kemudian metode pada penelitian ini ialah kuantitatif  berupa data curah hujan sebagai analisis hidrologi dan analisis debit banjir rencana serta data Demnas sebagai analisis hidrolik sungai. Berdasarkan hasil, untuk  analisis hidrolika dengan 79 titik ruas penampang sungai pada program Hec-Ras bahwa terjadinya luapan air di beberapa titk ruas penampang sungai pada debit kala ulang 25 tahun. Kemudian kapasitas tampangnya berdasarkan Hec-Ras sebesar 3359,78

Nurses\u27 Alumnae Association Bulletin, May 1957

Alumnae Notes Committee Reports Digest of Alumnae Meetings Graduation Awards - 1956 Letter from Hong Kong Leukemia Marriages Necrology New Arrivals Physical Advances at Jefferson President\u27s Message School of Nursing Report Two Year Programs in Nursing White Haven Repor

Effect of hygroscopic seeding on warm rain clouds – numerical study using a hybrid cloud microphysical model

The effect of hygroscopic seeding on warm rain clouds was examined using a hybrid cloud microphysical model combining a Lagrangian Cloud Condensation Nuclei (CCN) activation model, a semi-Lagrangian droplet growth model, and an Eulerian spatial model for advection and sedimentation of droplets. This hybrid cloud microphysical model accurately estimated the effects of CCN on cloud microstructure and suggested the following conclusions for a moderate continental air mass (an air mass with a large number of background CCN). (1) Seeding can hasten the onset of surface rainfall and increase the accumulated amount of surface rainfall if the amount and radius of seeding particles are appropriate. (2) The optimal radius of monodisperse particles to increase rainfall becomes larger with the increase in the total mass of seeding particles. (3) Seeding with salt micro-powder can hasten the onset of surface rainfall and increase the accumulated amount of surface rainfall if the amount of seeding particles is sufficient. (4) Seeding by a hygroscopic flare decreases rainfall in the case of large updraft velocity (shallow convective cloud) and increases rainfall slightly in the case of small updraft velocity (stratiform cloud). (5) Seeding with hygroscopic flares including ultra-giant particles (<i>r</i>>5 μm) hastens the onset of surface rainfall but may not significantly increase the accumulated surface rainfall amount. (6) Hygroscopic seeding increases surface rainfall by two kinds of effects: the "competition effect" by which large soluble particles prevent the activation of smaller particles and the "raindrop embryo effect" in which giant soluble particles can immediately become raindrop embryos. In some cases, one of the effects works, and in other cases, both effects work, depending on the updraft velocity and the amount and size of seeding particles

The Morphology and Adhesion Mechanism of Octopus vulgaris Suckers

The octopus sucker represents a fascinating natural system performing adhesion on different terrains and substrates. Octopuses use suckers to anchor the body to the substrate or to grasp, investigate and manipulate objects, just to mention a few of their functions. Our study focuses on the morphology and adhesion mechanism of suckers in Octopus vulgaris. We use three different techniques (MRI, ultrasonography, and histology) and a 3D reconstruction approach to contribute knowledge on both morphology and functionality of the sucker structure in O. vulgaris. The results of our investigation are two-fold. First, we observe some morphological differences with respect to the octopus species previously studied (i.e., Octopus joubini, Octopus maya, Octopus bimaculoides/bimaculatus and Eledone cirrosa). In particular, in O. vulgaris the acetabular chamber, that is a hollow spherical cavity in other octopuses, shows an ellipsoidal cavity which roof has an important protuberance with surface roughness. Second, based on our findings, we propose a hypothesis on the sucker adhesion mechanism in O. vulgaris. We hypothesize that the process of continuous adhesion is achieved by sealing the orifice between acetabulum and infundibulum portions via the acetabular protuberance. We suggest this to take place while the infundibular part achieves a completely flat shape; and, by sustaining adhesion through preservation of sucker configuration. In vivo ultrasonographic recordings support our proposed adhesion model by showing the sucker in action. Such an underlying physical mechanism offers innovative potential cues for developing bioinspired artificial adhesion systems. Furthermore, we think that it could possibly represent a useful approach in order to investigate any potential difference in the ecology and in the performance of adhesion by different species

NK4, a four-kringle antagonist of HGF, inhibits spreading and invasion of human pancreatic cancer cells

Because of the highly aggressive behaviour, i.e. invasive, disseminative and metastatic properties, the outcome for patients with pancreatic cancer is morbid. A better understanding and interference with the malignant behaviour of pancreatic cancer may provide new directions for treatment. We report here the induction of highly motile and invasive properties in human pancreatic cancer cells by hepatocyte growth factor (HGF) and blockage of these properties by NK4, a newly identified antagonist for HGF. In all of eight human pancreatic cancer cell lines we used (AsPC-1, BxPC-3, H-48N, KP-1N, KP-2, KP-3, MIA PaCa-2 and SUIT-2 cells), the c-Met/HGF receptor was expressed at varying levels. Although weak mitogenic activity of HGF was seen only in SUIT-2 and KP-3 cells, HGF strongly stimulated migration and invasion of these pancreatic cancer cells, except for BxPC-3 and MIA PaCa-2 cells. In contrast, migration and invasion potently induced by HGF in KP-1N, KP-3 and SUIT-2 cells were inhibited by NK4. The invasion of SUIT-2 cells was also potently stimulated with the influence of cocultured pancreatic fibroblasts and by ascitic fluid obtained after pancreatic cancer resection, however, invasiveness of the cancer cells in such conditions was practically abolished by NK4. Consistently, the ascitic fluid in patients who had undergone pancreatic cancer surgery contained high levels of HGF. These findings mean that HGF is probably involved in invasion, dissemination, and metastasis of pancreatic cancer, particularly through tumour-stromal interaction and after resection of the pancreatic cancer. NK4, an effective antagonist of HGF, may prove to have the potential for anti-invasion/metastasis. © 2001 Cancer Research Campaign http://www.bjcancer.co