Molecular gas and a new young stellar cluster in the far outer Galaxy

We investigate the star-formation ocurring in the region towards IRAS07527-3446 in the molecular cloud [MAB97]250.63-3.63, in the far outer Galaxy. We report the discovery of a new young stellar cluster, and describe its properties and those of its parent molecular cloud. Near-infrared JHKS images were obtained with VLT/ISAAC, and millimetre line CO spectra were obtained with the SEST telescope. VLA archive date were also used. The cloud and cluster are located at a distance of 10.3 kpc and a Galactocentric distance of 15.4 kpc, in the far outer Galaxy. Morphologically, IRAS 07527-3446 appears as a young embedded cluster of a few hundred stars seen towards the position of the IRAS source, extending for about 2-4 pc and exhibiting sub-clustering. The cluster contains low and intermediate-mass young reddened stars, a large fraction having cleared the inner regions of their circumstellar discs responsible for (H-Ks) colour excess. The observations are compatible with a < 5 Myr cluster with variable spatial extinction of between Av = 5 and Av = 11. Decomposition of CO emission in clumps, reveals a clump clearly associated with the cluster position, of mass 3.3 x 10^3 M(solar). Estimates of the slopes of the Ks-band luminosity function and of the star-formation efficiency yield values similar to those seen in nearby star-formation sites. These findings reinforce previous results that the distant outer Galaxy continues to be active in the production of new and rich stellar clusters, with the physical conditions required for the formation of rich clusters continuing to be met in the very distant environment of the outer Galactic disc.Comment: 11 pages, 13 figure

Diversity with Intrusion Detection Systems: An Empirical Study

Defence-in-depth is a term often used in security literature to denote architectures in which multiple security protection systems are deployed to defend the valuable assets of an organization (e.g. the data and the services). In this paper we present an approach for analysing defence-in-depth, and illustrate the use of the approach with an empirical study in which we have assessed the detection capabilities of intrusion detection systems when deployed in diverse, two-version, parallel defence-in-depth configurations. The configurations have been assessed in settings that favour detection of attacks (reducing false negatives), as well as settings that favour legitimate traffic (reducing false positives)

Improving Grade VIII Students' Vocabulary Achievement by Using Personal Vocabulary Notes in SMP SANTA MARIA MEDAN

This study attempts to improve students' vocabulary achievement by using Personal Vocabulary Notes. This research was conducted by using classroom action research. The subject of this study was VIII-B class SMP Santa Maria Medan which consisted of 46 students. The research was conducted in two cycles and each cycle consisted of three meetings. The result showed that the improvement of the students' scores from the first test in orientation test to the third test in cycle-II test. In the first test in orientation test, the mean was 46.95, in the second test in cycle-I test, the mean was 64.86, and the third test in cycle-II test, it was improved to be 80.45. Based on the diary notes, observation sheet, and questionnaire, it was found that the teaching learning activities ran well. Students were active and enthusiastic during the teaching learning process in the second cycle than the first one. The result of the researcher showed that the use of personal vocabulary notes significantly improved students' vocabulary

The Effect of Guided Inquiry Learning Model on Creativity and Linguistic Ability Viewed from Social Interaction Ability among Kindergarten Children of Group B

This study analyzed the effect of guided inquiry learning model on creativity viewed from social interaction skill of the kindergarten children of group B in North Kuta district, Badung regency. This study used the 2x2 factorial design. The population was all kindergarten B’s in the North Kuta district with the total of 1.951 children from 49 schools, divided into 7 clusters. The sample was drawn by multistage random sampling technique creating 8 learning groups with 4 experimental groups and 4 control groups each of which consisted of 76 children. The study used a child’s social interaction ability observation sheet and a child’s creativity observation sheet as the instruments. The data were analyzed using two-way ANOVA. The data analysis revealed that (1) there is a significant difference in child’s creativity between children who learned with guided inquiry learning model and those who learned with conventional teaching model (F= 18.874; p&lt;0.05) and (2) there is a significant interaction effect between learning model and social interaction ability on creativity (F= 15.975; p&lt;0.05). The children who had a high social interaction would be more efficient if they were taught by using guided inquiry learning model in achieving the students’ creativity, meanwhile the students who had a low social interaction would be more efficient if they were taught by using conventional learning model

Mechanical Systems: Symmetry and Reduction

Reduction theory is concerned with mechanical systems with symmetries. It constructs a lower dimensional reduced space in which associated conservation laws are taken out and symmetries are \factored out" and studies the relation between the dynamics of the given system with the dynamics on the reduced space. This subject is important in many areas, such as stability of relative equilibria, geometric phases and integrable systems

Kajian Pemanfaatan Konsentrat Limbah Cair Dan Abu Boiler Pabrik Kelapa Sawit Sebagai Sumber Unsur Hara Tanah Ultisol

Greenhouse study experiment aimed to study the utilization of waste liquid concentrates and boiler ash of palm oil mill as nutrient source of Ultisols. This study was using complete block randomized design with two factor and three replications, concentrate of waste liquid factor 0, 10, 20, 30 ton / ha and boiler ash factor 0, 50, 100, 150 kg K2O / ha. Parameters measured were soil pH, organic-C, total -N, available-P, and exchange K, plant height, shoot dry weight, root dry weight, and plant N, P, K uptake. The result of study showed that concentrate of waste liquid of palm oil mill can act as nutrient sources because increase all parameters, but boiler ash just increase soil pH, available P, exchange K and plant P uptak

Analisis Sistem Pembiayaan Arrum (Ar-rahn USAha Mikro dan Kecil) pada PT. Pegadaian Cabang Syariah Simpang Patal Kota Palembang

The purpose of this research is to know whether the implementation of financing system ARRUM conducted by PT. Simpang Patal Palembang Branch Office is in accordance with the related legal bases, namely Fatwa DSN-MUI No. 25/DSN-MUI/III/2002 and PSAK N 0.107 and Islamic microfinance concept with sharia mortgage and micro-small business. This research is a descriptive study with compare rule or Sharia according to Syariah with current practice of pawn. The sample OF This research is the Sharia Branch Pawnshop Of Simpang Patal Palembang. Based on the results of the analysis can be concluded that the practice of Rahn on the product Ar-Rum pawnshop Sharia is in accordance with the jurisprudence

Effect of castration age on carcass traits and meat quality of Simmental bulls

RiassuntoEffetto dell'eta di castrazione su caratteristiche della carcassa e qualita della carne di tori Pezzati Rossi. Il posticipo dell'eta di castrazione sembra limitare la riduzione delle performance produttive, mantenendo gli effetti positivi sulla qualita della carne. In proposito, su 24 tori di razza Pezzata Rossa, lo studio ha valutato l'effetto della castrazione a 10 o 12 mesi (Anticipata vs. Tardiva; periodo di ingrasso: 191 vs. 151 giorni) sulle caratteristiche qualitative della carcassa e del Longissimus thoracis. Sulla carne sono state analizzate composizione chimica, colore, tenerezza e gusto, con tecniche strumentali e sensoriali. La castrazione anticipata comporta l'ottenimento di carne a piu elevato tenore lipidico che migliora la tenerezza, aumenta la luminosita e riduce le perdite di cottura. Nel caso degli animali castrati tardivamente, la minor marezzatura sembra invece favorire la produzione di carne con un piu elevato valore dell'indice del rosso e dal gusto piu apprezzato alla valu..