Study of FCNC mediated rare B_s decays in a single universal extra dimension scenario

We study the rare semileptonic and radiative leptonic B_s decays in the universal extra dimension model. In this scenario, with a single extra dimension, there exists only one new parameter beyond those of the standard model, which is the inverse of the compactification radius R. We find that with the additional contributions due to the KK modes the branching ratios of the rare B_s decays are enhanced from their corresponding standard model values and the zero point of the forward backward asymmetries are shifted towards the left.Comment: 19 pages, 7 figures, version to appear in Phys. Rev.

Does changing the pulling direction give better insight into biomolecules?

Single molecule manipulation techniques reveal that the mechanical resistance of a protein depends on the direction of the applied force. Using a lattice model of polymers, we show that changing the pulling direction leads to different phase diagrams. The simple model proposed here indicates that in one case the system undergoes a transition akin to the unzipping of a $\beta$ sheet, while in the other case the transition is of a shearing (slippage) nature. Our results are qualitatively similar to experimental results. This demonstrates the importance of varying the pulling direction since this may yield enhanced insights into the molecular interactions responsible for the stability of biomolecules.Comment: RevTeX v4, 10 pages with 6 eps figure

Efek Penyakit Kronis terhadap Gangguan Mental Emosional

Hasil Riset Kesehatan Dasar tahun 2007 menunjukkan 11,6% penduduk Indonesia berumur 15 tahun ke atas mengalami gangguan mental emosional. Penelitian ini bertujuan untuk mengetahui efek penyakit kronis terhadap gangguan mental emosional. Desain penelitian ini adalah potong lintang mengggunakan data Riskesdas tahun 2007. Sebanyak 660.452 responden berusia di atas 15 tahun yang tidak mengalami gangguan jiwa dijadikan sampel. Gangguan mental emosional dinyatakan ada jika responden mem-punyai paling tidak enam dari 20 gangguan. Penyakit kronis seperti tuberculosis (TB) paru, hepatitis, jantung, diabetes, kanker, dan stroke diukur melalui wawancara yang didasarkan pada diagnosis petugas kesehatan. Hasil penelitian menunjukkan bahwa dari sepuluh penderita penyakit kronis, dua sampai lima penderita akan mengalami gangguan mental emosional. Analisis regresi logistik multivariat memperlihatkan bahwa risiko gangguan mental emosional semakin tinggi bersamaan dengan semakin banyak jumlah penyakit kronis yang diderita oleh responden. Responden yang menderita satu penyakit kronis berisiko 2,6 kali lebih besar untuk mengalami gangguan mental emosional, yang menderita dua penyakit kronis berisiko 4,6 kali, yang menderita tiga penyakit kronis atau lebih berisiko 11 kali. Kementerian Kesehatan disarankan untuk mengembangkan standar pelayanan penyakit kronis terkait dengan pengurangan dampak pada gangguan mental emosional dan dibentuknya tim bimbingan teknis pelayanan penyakit kronis.Basic Health Research (Riskesdas) year 2007 showed that 11.6 percent of Indonesia's population aged 15 years and above suffering from mental emotional disorder. This study aimed to examine the effects of chronic illness to the mental emotional disorders. A cross-sectional study was performed that used Riskesdas 2007 data. Atotal of 660,452 respondents aged 15 years and over who are mentally health become sample of this study. Mental emotional disorders exist if they have at least six of the 20 disorder. Chronic diseases such as pulmonary tuberculosis, hepatitis, heart disease, diabetes, cancer, and stroke were measured based on diagnosis by health pro-fesional. The results showed that out of ten respondents with chronic illness, aproximately two to five will suffering from mental emotional disorder. Multivariat logistic regression analysis shows that the risk of developing mental emotional disorders higher as more number of chronic illnesses suffered by the respondent. Respondents suffering from one chronic disease were 2.6 times greater risk for emotional mental disorder, suffering from two chronic dis-ease have risk 4.6 times, which had three or more chronic disease risk have risk 11 times. It is suggested that the Ministry of Health to develop a standard of care of chronic diseases associated with reducing impact on the mental emotional disorders and establishment of teams for technical guidance chronic disease care

Pengaruh Promosi dan Citra Merek terhadap Keputusan Pembelian

Tingginya persaingan antar Perusahaan saat ini mengharuskan setiap Perusahaan untuk terus berinovasi dan kreatif dalam menyusun strategi pemasarannya. Salah satu program pemasaran yang efektif dalam mengkomunikasikan produknya adalah melalui program promosi dan citra merek yang positif dibenak konsumen agar dapat membantu konsumen dalam pembuatan keputusan pembeliannya. Penelitian ini bertujuan mengetahui pengaruh promosi yang dilakukan dan citra merek Perusahaan terhadap keputusan pembelian mobil jenis MPV merek Toyota di Kota Denpasar. Purposive sampling adalah teknik sampling yang digunakan dengan responden berjumlah 120 orang dan regresi linear berganda merupakan teknik analisis data yang digunakan. Hasil analisis menunjukkan bahwa, promosi iklan dan citra merek berpengaruh positif signifikan secara parsial dan simultan terhadap keputusan pembelian mobil jenis MPV merek Toyota di Kota Denpasar

Normal mode analysis for scalar fields in BTZ black hole background

We analyze the possibility of inequivalent boundary conditions for a scalar field propagating in the BTZ black hole space-time. We find that for certain ranges of the black hole parameters, the Klein-Gordon operator admits a one-parameter family of self-adjoint extensions. For this range, the BTZ space-time is not quantum mechanically complete. We suggest a physically motivated method for determining the spectra of the Klein-Gordon operator.Comment: 6 pages, no figure, late

Exchange bias effect and intragranular magnetoresistance in Nd$_{0.84}Sr_{0.16}CoO_3

Electrical transport properties as a function of magnetic field and time have been investigated in polycrystalline, Nd_{0.84}Sr_{0.16}CoO_3. A strong exchange bias (EB) effect is observed associated with the fairly large intragranular magnetoresistance (MR). The EB effect observed in the MR curve is compared with the EB effect manifested in magnetic hysteresis loop. Training effect, described as the decrease of EB effect when the sample is successively field-cycled at a particular temperature, has been observed in the shift of the MR curve. Training effect could be analysed by the successful models. The EB effect, MR and a considerable time dependence in MR are attributed to the intrinsic nanostructure giving rise to the varieties of magnetic interfaces in the grain interior