Cross-waves induced by the vertical oscillation of a fully immersed vertical plate

Capillary waves excited by the vertical oscillations of a thin elongated plate below an air-water interface are analyzed using time-resolved measurements of the surface topography. A parametric instability is observed above a well defined acceleration threshold, resulting in a so-called cross-wave, a staggered wave pattern localized near the wavemaker and oscillating at half the forcing frequency. This cross-wave, which is stationary along the wavemaker but propagative away from it, is described as the superposition of two almost anti-parallel propagating parametric waves making a small angle of the order of $20^\mathrm{o}$ with the wavemaker edge. This contrasts with the classical Faraday parametric waves, which are exactly stationnary because of the homogeneity of the forcing. Our observations suggest that the selection of the cross-wave angle results from a resonant mechanism between the two parametric waves and a characteristic length of the surface deformation above the wavemaker.Comment: to appear in Physics of Fluid

Vacancy clustering and diffusion in silicon: Kinetic lattice Monte Carlo simulations

Diffusion and clustering of lattice vacancies in silicon as a function of temperature, concentration, and interaction range are investigated by Kinetic Lattice Monte Carlo simulations. It is found that higher temperatures lead to larger clusters with shorter lifetimes on average, which grow by attracting free vacancies, while clusters at lower temperatures grow by aggregation of smaller clusters. Long interaction ranges produce enhanced diffusivity and fewer clusters. Greater vacancy concentrations lead to more clusters, with fewer free vacancies, but the size of the clusters is largely independent of concentration. Vacancy diffusivity is shown to obey power law behavior over time, and the exponent of this law is shown to increase with concentration, at fixed temperature, and decrease with temperature, at fixed concentration.Comment: 14 pages, 12 figures. To appear in Physical Review

Evaluasi Pengelolaan Pendanaan Pemerintah Kota Tomohon Untuk Cagar Budaya Gereja Tua Sion Tomohon: EvaluationThe Management of Tomohon City Goverenment Funding for the Cultural Heritage of the Old Sion Chruch

Abstrak: Pengelolaan pendanaan dalam bentuk perlindungan, pengembangan, dan pemanfaatan Pemerintah Kota Tomohon terhadap Cagar Budaya Gereja Tua Sion.Tujuan penelitian ini adalah mengevaluasi pengelolaan pendanaan Pemerintah Kota Tomohon dengan berdasarkan Undang-Undang Nomor 11 Tahun 2010 Tentang Cagar Budaya dan perencanaan pendanaan, pelaksanaan pendanaan dan pertanggungjawaban Dinas Pendidikan dan Kebudayaan KotaTomohon dengan berdasarkan Peraturan Pemerintah Nomor 12 Tahun 2019 Tentang Pengelolaan Keuangan Daerah.Metode analisis data yang digunakan yaitu metode kualitatif dengan pendekatan deskriptif. Hasil penelitian ini menunjukkan bahwa dari segi perencanaanpendanaan, pelaksanaan pendanaan dan laporan pertanggungjawaban Dinas Pendidikan dan Kebudayaan Kota Tomohon Untuk Cagar Budaya Gereja Tua Sion telah berdasarkan dengan Undang-undang Nomor 11 Tahun 2010 Tentang Cagar Budaya dan Peraturan Pemerintah Nomor 12 Tahun 2019 Tentang Pengelolaan Keuangan Daerah.   Kata Kunci: Perencanaan, Pelaksanaan, dan Pertanggungjawaban   Abstract: Management of funding in the form of protection, development, and utilization of the Tomohon City Government for the Cultural Heritage of the Tua Sion Church. The purpose of this research is to evaluate the funding management of the Tomohon City Government based on Law Number 11 of 2010 concerning Cultural Heritage and funding planning, implementation of funding and accountability of the Tomohon City Government based on Government Regulation Number 12 of 2019 concerning Regional Financial Management. The data analysis method used is a qualitative method with a descriptive approach. The results of this study indicate that in terms of funding planning, implementation of funding and accountability reports of the Tomohon City Education and Culture Office for the Cultural Heritage of the Tua Zion Church are based on Law Number 11 of 2010 concerning Cultural Conservation and Government Regulation Number 12 of 2019 concerning Financial Management Area. Keyword : Planning, Implementation, and Accountabilit

Performance of Broiler Raised on the Upper and Lower Floors Postal Dounle Deck Cages with Semi Close House System

This study aimed to determine the performance of broilers kept on the upper and lower floors of double-deck postal cages with a semi-close house system. This research was conducted for 42 days consisting of 10 days of cage preparation and 32 days of data collection. The material for this study was broilers with the final Cobb strain CP-707 stock, with a population of 16,000 birds (8,000 birds/floor). Survey and observation methods are used to collect data related to broiler performance. The variables observed in this study were depletion, feed intake, body weight gain, feed conversion ratio (FCR), and performance index (IP). The data obtained were analyzed descriptively. The results show that based on the performance index, the performance of broilers kept in double-deck postal cages on the top floor is very good, and the bottom floor is good. Broilers on the upper floor have a higher performance index value than the lower floor due to lower depletion values, lower feed consumption with lower feed conversion values, and higher body weight

Classification of Quantitative Light-Induced Fluorescence Images Using Convolutional Neural Network

Images are an important data source for diagnosis and treatment of oral diseases. The manual classification of images may lead to misdiagnosis or mistreatment due to subjective errors. In this paper an image classification model based on Convolutional Neural Network is applied to Quantitative Light-induced Fluorescence images. The deep neural network outperforms other state of the art shallow classification models in predicting labels derived from three different dental plaque assessment scores. The model directly benefits from multi-channel representation of the images resulting in improved performance when, besides the Red colour channel, additional Green and Blue colour channels are used.Comment: Full version of ICANN 2017 submissio

Thermodynamic analysis of porphyrin binding to Momordica charantia (bitter gourd) lectin

Owing to the use of porphyrins in photodynamic therapy for the treatment of malignant tumors, and the preferential interaction of lectins with tumor cells, studies on lectin-porphyrin interaction are of significant interest. In this study, the interaction of several free-base and metalloporphyrins with Momordica charantia (bitter gourd) lectin (MCL) was investigated by absorption spectroscopy. Difference absorp-tion spectra revealed that significant changes occur in the Soret band region of the porphyrins on binding to MCL. These changes were monitored to obtain association constants (Ka) and stoichiometry of binding. The tetrameric MCL binds four porphyrin molecules, and the stoichiometry was unaffected by the presence of the specific sugar, lactose. In addition, the agglutination activity of MCL was unaffected by the presence of the porphyrins used in this study, clearly indicating that porphyrin and carbohydrate ligands bind at different sites. Both cationic and anionic porphyrins bind to the lectin with comparable affinity (Ka =103-105 m-1). The thermodynamic parameters associated with the interaction of several porphyrins, obtained from the temperature dependence of the Ka values, were found to be in the range: Δ H° = -98.1 to -54.4 kJ·mol-1 and Δ S° =-243.9 to -90.8 J·mol-1·K-1. These results indicate that porphyrin binding to MCL is governed by enthalpic forces and that the contribution from binding entropy is negative. Enthalpy-entropy compensation was observed in the interaction of different porphyrins with MCL, underscoring the role of water structure in the overall binding process. Analysis of CD spectra of MCL indicates that this protein contains about 13%α-helix, 36%β-sheet, 21%β-turn, and the rest unordered structures. Binding of porphyrins does not significantly alter the secondary and tertiary structures of MCL

The effects of childbirth on the pelvic-floor

Basically, vaginal delivery is associated with the risk of pelvic floor damage. The pelvic floor sequelae of childbirth includes anal incontinence, urinary incontinence and pelvic organ prolapse. Pathophysiology, incidence and risk factors for the development of the respective problems are reviewed. Where possible, recommendations for reducing the risk of pelvic floor damage are given

The vertical cloud structure of the West African monsoon: a 4 year climatology using CloudSat and CALIPSO

The West African summer monsoon (WAM) is an important driver of the global climate and locally provides most of the annual rainfall. A solid climatological knowledge of the complex vertical cloud structure is invaluable to forecasters and modelers to improve the understanding of the WAM. In this paper, 4 years of data from the CloudSat profiling radar and CALIPSO are used to create a composite zonal mean vertical cloud and precipitation structure for the WAM. For the first time, the near-coincident vertical radar and lidar profiles allow for the identification of individual cloud types from optically thin cirrus and shallow cumulus to congestus and deep convection. A clear diurnal signal in zonal mean cloud structure is observed for the WAM, with deep convective activity enhanced at night producing extensive anvil and cirrus, while daytime observations show more shallow cloud and congestus. A layer of altocumulus is frequently observed over the Sahara at night and day, extending southward to the coastline, and the majority of this cloud is shown to contain supercooled liquid in the top. The occurrence of deep convective systems and congestus in relation to the position of the African easterly jet is studied, but only the daytime cumulonimbus distribution indicates some influence of the jet position