Pion Charge Exchange on Deuterium

We investigate quantum corrections to a classical intranuclear cascade simulation of pion single charge exchange on the deuteron. In order to separate various effects the orders of scattering need to be distinguished and, to that end, we develop signals for each order of scattering corresponding to quasi-free conditions. Quantum corrections are evaluated for double scattering and are found to be large. Global agreement with the data is good.Comment: 30 pages, 12 figure

Pool boiling on modified surfaces using R-123

This article has been made available through the Brunel Open Access Publishing Fund.Saturated pool boiling of R-123 was investigated for five horizontal copper surfaces modified by different treatments, namely, an emery-polished surface, a fine sandblasted surface, a rough sandblasted surface, an electron beam-enhanced surface, and a sintered surface. Each 40-mm-diameter heating surface formed the upper face of an oxygen-free copper block, electrically heated by embedded cartridge heaters. The experiments were performed from the natural convection regime through nucleate boiling up to the critical heat flux, with both increasing and decreasing heat flux, at 1.01 bar, and additionally at 2 bar and 4 bar for the emery-polished surface. Significant enhancement of heat transfer with increasing surface modification was demonstrated, particularly for the electron beam-enhanced and sintered surfaces. The emery-polished and sandblasted surface results are compared with nucleate boiling correlations and other published data. © 2014 Syed W. Ahmad, John S. Lewis, Ryan J. McGlen, and Tassos G. Karayiannis Published with license by Taylor & Francis

Corrections to Tribimaximal Mixing from Nondegenerate Phases

We propose a seesaw scenario that possible corrections to the tribimaximal pattern of lepton mixing are due to the small phase splitting of the right-handed neutrino mass matrix. we show that the small deviations can be expressed analytically in terms of two splitting parameters($\delta_1$ and $\delta_2$) in the leading order. The solar mixing angle $\theta_{12}$ favors a relatively smaller value compared to zero order value ($35.3^\circ$), and the Dirac type CP phase $\delta$ chooses a nearly maximal one. The two Majorana type CP phases $\rho$ and $\sigma$ turn out to be a nearly linear dependence. Also a normal hierarchy neutrino mass spectrum is favored due to the stability of perturbation calculations.Comment: 19 pages 6 figures, Accepted by Mod. Phy. Lett.

Office quality classification theoretical and empirical issues

Office quality classification literature recognises identification of office classes through division of office market rent distribution into intervals but failed to provide sound theoretical framework and comprehensive empirical approach to this method. This paper theorised that as office rental levels are a function of office quality; high quality office classes should have their mean rents greater than average market rent and mean rents of low quality classes. Also that heterogeneous nature of property coupled with lack of perfect information to market participants could result into differential evaluation of rent and quality of the same property by different market participants. The behaviour of participants normally reflects in distribution of market rent by depicting natural breaks in the distribution that could be captured by univariate data exploration. Frequency and histograms of rent distributions that were assumed to depict the behaviour of market participants were used to divide rent distribution to intervals to identify office quality classes. The results of this classification were validated by discriminant analysis. 67% and 59% accuracies were achieved for estimation and holdout subsamples respectively. This paper extended theoretical and empirical approaches in office quality classification. The proposed empirical approach could be used in future classification research

Amygdala reactivity predicts adolescent antisocial behavior but not callous-unemotional traits.

Recent neuroimaging studies have suggested divergent relationships between antisocial behavior (AB) and callous-unemotional (CU) traits and amygdala reactivity to fearful and angry facial expressions in adolescents. However, little work has examined if these findings extend to dimensional measures of behavior in ethnically diverse, non-clinical samples, or if participant sex, ethnicity, pubertal stage, and age moderate associations. We examined links between amygdala reactivity and dimensions of AB and CU traits in 220 Hispanic and non-Hispanic Caucasian adolescents (age 11-15; 49.5% female; 38.2% Hispanic), half of whom had a family history for depression and thus were at relatively elevated risk for late starting, emotionally dysregulated AB. We found that AB was significantly related to increased right amygdala reactivity to angry facial expressions independent of sex, ethnicity, pubertal stage, age, and familial risk status for depression. CU traits were not related to fear- or anger-related amygdala reactivity. The present study further demonstrates that AB is related to increased amygdala reactivity to interpersonal threat cues in adolescents, and that this relationship generalizes across sex, ethnicity, pubertal stage, age, and familial risk status for depression

PEMERIKSAAN JUMLAH SEL LEUKOSIT PADA PENDERITA TUBERKULOSIS PARU DI UPT KESEHATAN PARU MASYARAKAT DINAS KESEHATAN PROVINSI SUMATERA UTARA

Tuberkulosis paru atau sering disebut TB paru merupakan suatu penyakit infeksi paru yang disebabkan oleh kuman mycobacterium tuberculosis yang ditularkan melalui udara. Salah satu pemeriksaan penunjang pada penderita TB paru adalah pemeriksaan jumlah sel Lekosit. Lekosit berfungsi dalam memerangi infeksi yang disebabkan oleh virus, bakteri, ataupun proses metabolik toksin. Pada penderita TB paru ditemukan sedikit peningkatan jumlah sel Lekosit yang disebut dengan istilah Leukositosis. Tujuan peneltiian ini untuk mengetahui jumlah sel Lekosit pada penderita Tuberkulosis paru di UPT Kesehatan Paru Masyarakat Dinas Kesehatan Provinsi Sumatera Utara. Disain penelitian bersifat deskriftif cross sectional. Penulis ingin melakukan pemeriksaan jumlah sel Lekosit dengan menggunakan alat Auto Hematology Analyzer Mindray BC-300 Plus dengan sampel sebanyak 50 orang, bahan yang digunakan adalah darah dengan antikoagulan EDTA. Penelitian dilakukan di laboratorium UPT Kesehatan Paru Masyarakat Dinas Kesehatan Provinsi Sumatera Utara. Dari hasil penelitian diperoleh Lekosit yang normal sebanyak 30 orang (60%), meningkat sebanyak 20 orang (40%)

PEMERIKSAAN JUMLAH SEL LEUKOSIT PADA PENDERITA TUBERKULOSIS PARU DI UPT KESEHATAN PARU MASYARAKAT DINAS KESEHATAN PROVINSI SUMATERA UTARA

Tuberkulosis paru atau sering disebut TB paru merupakan suatu penyakit infeksi paru yang disebabkan oleh kuman mycobacterium tuberculosis yang ditularkan melalui udara. Salah satu pemeriksaan penunjang pada penderita TB paru adalah pemeriksaan jumlah sel Lekosit. Lekosit berfungsi dalam memerangi infeksi yang disebabkan oleh virus, bakteri, ataupun proses metabolik toksin. Pada penderita TB paru ditemukan sedikit peningkatan jumlah sel Lekosit yang disebut dengan istilah Leukositosis. Tujuan peneltiian ini untuk mengetahui jumlah sel Lekosit pada penderita Tuberkulosis paru di UPT Kesehatan Paru Masyarakat Dinas Kesehatan Provinsi Sumatera Utara. Disain penelitian bersifat deskriftif cross sectional. Penulis ingin melakukan pemeriksaan jumlah sel Lekosit dengan menggunakan alat Auto Hematology Analyzer Mindray BC-300 Plus dengan sampel sebanyak 50 orang, bahan yang digunakan adalah darah dengan antikoagulan EDTA. Penelitian dilakukan di laboratorium UPT Kesehatan Paru Masyarakat Dinas Kesehatan Provinsi Sumatera Utara. Dari hasil penelitian diperoleh Lekosit yang normal sebanyak 30 orang (60%), meningkat sebanyak 20 orang (40%)

Writing Electronic Devices on Paper with Carbon Nanotube Ink

The normal paper used in any printer is among the cheapest flexible organic materials that exist. We demonstrate that we can print on paper high-frequency circuits tunable with an applied dc voltage. This is possible with the help of an ink containing functionalized carbon nanotubes and water. After the water is evaporated from the paper, the nanotubes remain steadily imprinted on paper, showing a semiconducting behaviour and tunable electrical properties

Uji Aktivitas Larvasida Ekstrak Daun Jarak Kepyar (Ricinus Communis L.) Terhadap Larva Nyamuk Aedes Aegypti

Castor Plant (Ricinus communis L.) belongs to Euphorbiaceae family. In medicine has been used as antioxidant, antihistaminic, antifertility, antimicrobial, antidiabetic, antiinflammatory, antipyretic, and it has activities to larvacidal, molluscicidal and insecticidal. The aim of this study was to determine the level of mosquito larva (Aedes aegypti) mortality after giving of ethanolic extract showed with LC50. Extract obtained by maceration method, rendamen ethanolic extract obtained as much as 6.073%. This research uses 110 instar, III larvae of mosquito (Aedes aegypti), divided into test solution are made with 3 concentrations (10 µg/mL, 100 µg/mL, 1000 µg/mL), positive control using Abate and negative control using water. Observations were made after 24 hours of treatment. Toxicity test results shows ethanolic extract is an extract that is active as Larvacidal showed LC50 as much as 138,995 ± 1,5 µg/mL < 1000 µg/mL. Based on qualitative testing of the chemical component using TLC method known ethanolic extract of Castor Plant (Ricinus communis L.) leaves contain alcaloids, saponins and flavonoids