Constraints on the mass and mixing of Z' bosons

We tested several models in which the Standard Model (SM) gauge group is extended by an additional U(1) gauge symmetry, against available electroweak precision data to impose limits on the mass of the neutral Z' boson, M_Z', predicted in all such models, and on the Z-Z' mixing angle, theta_ZZ', at 95% C.L. We found lower limits on M_Z' of order 1 TeV in most cases, while theta_ZZ' was found to be constrained to very small values.Comment: Format fixed, 5 pages, 2 figures, Talk given at the 17th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY09), Boston, MA, USA, 5-10 June 2009, to be published in the conference proceedings (AIP

Z' Searches: From Tevatron to LHC

The CDF collaboration has set lower limits on the masses of the Z' bosons occurring in a range of E_6 GUT based models. We revisit their analysis and extend it to certain other E_6 scenarios as well as to some general classes of models satisfying the anomaly cancellation conditions, which are not included in the CDF analysis. We also suggest a Bayesian statistical method for finding exclusion limits on the Z' mass, which allows one to explore a wide range of the U(1)' gauge coupling parameter. This method also takes into account the effects of interference between the Z' and the SM gauge bosons.Comment: 5 pages. Talk given at the XXIInd Rencontres de Blois, Loire, France, 16-20 July 201

Pengaruh Hukum Islam Terhadap Politik Hukum Indonesia

Studies on the influence of islamic law in Indonesia can be one basis for muslims to define the future strategy of the Indonesian nation closer or familiarizing with Islamic law that has the effect of legal politic in Indonesia. At least it show sthat the influence of the process of Islamization of a society is nothing that can be completed immediately, but the center of attention is focused on the legal position of Islam can influence on legal politic in Indonesia whic his polarized in the establishment of the legal system. Political policy in the law not only in legal proceedings that will be and are being enforced but includes also the law that have occurred, have practical purposes to allow positive legislation can be better formulated so as to provide guidance not only on legislation but also to the Courts as an organizer or as an implementing decision. This has been experienced by the people of Indonesia since the era Dutch colonial that changed significantly when the Indonesian republic independent on 17 of August 1945, because they have to adjust in accordance with applicable law and the constitutional foundation the state ideology of Pancasila and the Constitution of 1945 or a law that is built upon the activity and creativity based upon ideals that is sourced on the cultural values of the nation which has long since evolved to the present

Penerapan Model Pembelajaran Kooperatif Tipe Group Investigation (Gi) untuk Meningkatkan Hasil Belajar IPA Siswa Kelas V SD Negeri 49 Tameran Kecamatan Bengkalis Kabupaten Bengkalis

The problem of this research is the weaknees of student's learning result of sains subject. It show from 24 student's, 14 students (58,33%) have lower score, and it only 10 student's (41,66%) have average score 63. The KKM of this school is 70. According to that problem, the research by implementing cooperative learning model type group investigation. In cycle I, the percentage of teachers activity in first meeting is adguate 58,33%. In second meeting, teachers activity significatly increased to 66,66% with good category. In cycle 2, firts meeting was a very good category 83,33% and second meeting indicated a very good category 91,66%. Meanwhile, the activityof student's also imvroved. In cycle I indicated 54,16% in adequatecategory and in cycle 2 has increased up to 62,50% with good category. In cyle 2, first meeting, the activity of student's has been increasing to 75% with goog category and second meeting indicated very good category 87,50%. An average score of student's 63 it increased to 70,83 in cycle I, and 76,25 in cycle 2. In classical completeness, cycle 1 and cycle 2 achieved. In conclussion, implementatation cooperative learning model group investigation teacin can improve student's learning result of five grade students of SD Negeri 49 Tameran Kecamatan Bengkalis Kabupaten Bengkalis in sains subject

Characterization of Polyhydroxyalkanoates Produced by Contaminated Soil Bacteria using Wastewater and Glucose as Carbon Sources

Purpose: To isolate polyhydroxyalkanoates (PHA)-producing bacterial strains from contaminated soil using industrial wastewater and glucose as carbon soured by Macrogen sequencing. Two different sources, namely, glucose and wastewater were used to ces.Methods: The strains were isolated and identified as Pseudomonas, Bacillus, Enterobacter, Exiguobacterium and Stenotrophomonas using biochemical tests and further confirmevaluate and  compare the use of wastewater as a carbon source for PHA production. The biomass obtained was analyzed by Fourier transform infra-red (FTIR) to identify the presence of PHA in it. Afterwards, PHA extraction was carried out and then gas chromatography (GC) performed to identify PHA monomers.Results: Utilization of glucose resulted in the production of PHB, while wastewater yielded copolymers poly-3 hydroxybutyrate-co-3hydroxyvalerate P(3HB-co-3HV) due to its content of volatile fatty acids such as acetic acid, propionic acid and butyric acid, which led to the production of different types of polymers. The maximum PHA production was 41 ± 0.22 % obtained for Stenotrophomonas (SM03) using 2 % glucose as carbon source while for wastewater, maximum production was achieved by the Pseudomonas strain (SM01).Conclusion: Wastewater is produced in large quantities daily during various activities and therefore can be used as a cheap carbon source for the production of valuable products such as PHA.Keywords: Polyhydroxyalkanoates, Wastewater, Glucose, Pseudomonas strain, Stenotrophomona

Symbol Reinterpretation as a Motivation for Integration of Chinese Muslim Ethnic Identity

This study focuses on research with a phenomenological approach regarding the symbolic meaning of the ethnic Chinese Muslim identity at the Lautze 2 Mosque in Bandung City, which focuses on concluding the meaning of ethnic symbols in Chinese New Year as a means to integrate in the form of friendship and participation with the Chinese extended family; the meaning of Ethnic Symbols in Feng Shui which is still used and believed among Chinese Muslims; the meaning of the ethnic symbols in the lion dance which is still preserved as an art in various Chinese performances and endeavors; and the meaning of ethnic symbols in the Lucky Cat, which is still practiced in some Chinese Muslim circles, and is valued as part of the wisdom of the Chinese ancestor.  The study attempted to remain integrated with a more significant initial ethnic identity. For Chinese Muslims, family ties or relatives are essential in maintaining friendly relations, and believing Islam is the teachings of rahmatan lil 'alamiin. In addition, there is a reinterpretation of the symbols of Chinese ethnicity as a form of strengthening the identity of the Chinese Muslim ethnic group. This study can be used as theoretical knowledge in the form of theoretical conception to enrich the theories of the study of religions to assess the religious phenomenon associated with symbols of ethnic identity and religious identity, even acculturation between newcomers and natives. In addition, practically from the research, it is suggested to be an academic consideration for various government policies to build inter-religious harmony and harmony between ethnicities and groups, especially regarding religious conversion and belief and taboo issues in Indonesia