Anisotropic merging and splitting of dipolar Bose-Einstein condensates

We study the merging and splitting of quasi-two-dimensional Bose-Einstein condensates with strong dipolar interactions. We observe that if the dipoles have a non-zero component in the plane of the condensate, the dynamics of merging or splitting along two orthogonal directions, parallel and perpendicular to the projection of dipoles on the plane of the condensate are different. The anisotropic merging and splitting of the condensate is a manifestation of the anisotropy of the roton-like mode in the dipolar system. The difference in dynamics disappears if the dipoles are oriented at right angles to the plane of the condensate as in this case the Bogoliubov dispersion, despite having roton-like features, is isotropic.Comment: 9 pages and 9 figure

Etika Periklanan

Periklanan sudah menjadi bagian yang tidak terpisahkan dari dunia bisnis, dan selalu mendapatkan perhatian dari masyarakat luas. Akan tetapi muncul kekhawatiran bahwa iklan yang setiap hari di komunikasikan melalui media massa itu pada umumnya tidak mendidik, tetapi justru menyebarluaskan selera yang rendah. Dari segi moral, iklan tidak mempunyai nilai-nilai informatif, karena semata-mata hanya demi keuntungan para produsen saja

Thermopower of the Hubbard model: Effects of multiple orbitals and magnetic fields in the atomic limit

We consider strongly-correlated systems described by the multi-orbital Hubbard model in the atomic limit and obtain exact expressions for the chemical potential and thermopower. We show that these expressions reduce to the Heikes formula in the appropriate limits ($k_BT \gg U$) and ($k_BT \ll U$) and obtain the full temperature dependence in between these regimes. We also investigate the effect of a magnetic field introduced through a Zeeman term and observe that the thermopower of the multi-orbital Hubbard model displays spikes as a function of magnetic field at certain special values of the field. This effect might be observable in experiments for materials with a large magnetic coupling.Comment: 8 pages, 4 figures Typos in eqns. 3 and 4 and reference 17 correcte

Pengembangan Instrumen Asesmen Pengetahuan Fisika Berbasis Komputer Untuk Meningkatkan Kesiapan Peserta Didik Dalam Menghadapi Ujian Nasional Berbasis Komputer

This research aims to 1) produce computer-based assessment instruments eligible to measure the cognitive abilities of senior high school students, 2) test the effectiveness of computer-based assessment instrument developed to measure the knowledge of physics in senior high school students, 3) measuring the level of readiness of students in dealing computer-based national examanation. This research uses a model of Research and Development (R & D) which consists of three main stages: the preliminary stage, the stage of development and evaluation phase. At the preliminary stage has been identified problems of computer-based assessment of learning physics. At the development stage has been carried out the design manufacture of computer-based assessment instrument physics, product validation, product revisions and testing of products on a limited basis. In the evaluation stage has been tested extensively, product revision, and the final product. Descriptive statistical test used to describe the results of the application of computer-based knowledge assessment. The results research show that : 1) computer-based assessment instruments eligible to measure cognitive abilities of senior high school students, 2) computer-based assessment instruments are more effective and efficient to measure the students knowledge of physics in senior high school rather than paper and pencil test, 3) 58.67% of students are ready to face computer-based test, 34% of students not yet ready for the computer based test and 7.33% are not ready to perform the test based computer

The Equivalence of Translated Songs Lyrics and Their Effects - the Case of Translated Ecclesial Songs

This study aimed at describing the equivalence of eclessial song lyrics, which belong to the content word, the meaning of the sentences and their effect on church songs. The method used in this study is descriptive and qualitative by using music, language, and interdiciline approach. The data collection method used questionnaires technique, interview, documents and content analysis. The data used are 5 documents of songs chosen purposively as the primary data. Based on the data being analyzed, the results of this study were: 1) The translated content word located in the same bars and equivalent was around 27.07%, the translated content word located in the same bars, but not equivalent was 18.34%, the translated content word located in the different bars, but equivalent was 11.79%, the translated content word located in the different bars and not equivalent was 2.62%, and the untranslated words were 4.17%. 2) The translation of equivalence beautiful lyrics showed the beauty of the song was equivalent at 17.02%, the beauty of the song was less equivalent at 29.78%, the beauty of the song was not equivalent of 61.70%. 3). The differences of structure caused the incorrect dictions or choice of words and missing words in the translated lyrics

Peningkatan Hasil Belajar Matematika Menggunakan Metode Pembelajaran Problem Solving Pada Siswa Sekolah Dasar

: The purpose of this study was to determine the improvement of student learning outcomes in mathematics through learning methods Problem Solving Grade 4 SDN Ngrawan Semarang District 02 subdistrict Getasan second semester of academic year 2015/2016. This research is a classroom action research (PTK). Model class action research model was used Arikunto using two cycles, each cycle consists of 3 phases: 1). Action planning stage. 2). Implementation of actions and observations. 3). Reflection activity. The subjects were4th grade students of SDN 02 Getasan Ngrawan Kab. Semarang totaling 21 siswa.penilitian there are two cycles, each cycle consisting of three meetings. The data collection technique is a technique test and non test. Assessment instruments used to use observasi.pada sheet items and pre-cycle average value of learning outcomes was 60.8, the first cycle of the average value of learning outcomes 74, and the average value of learning outcomes in cycle 2 was 83.1. 2 cycles result is higher than the indicator PTK

Analisis Pengaruh Perubahan Sentrasi Dosis dan Jarak Bladder terhadap Distribusi Dosis pada Perencanaan Brachytherapy Kanker Serviks

The research has been done about the analysis of the change dose sentration and bladder distance\u27s effect toward dose distribution in brachytherapy planning of cervical cancer. The purpose of this research is to describing dose distribution which is appropriate with criteria, to evidance dose reduction because raising bladder distance from point A, and to achieve how long the bladder distance\u27s from point A which is can produce the dose distribution criteria appropriate.The methods of this research is measuring bladder distance from point A in lateral projections of radiographs, doing brachytherapy planning which is using early dose sentration at the point A. The sample who is have not ideal dose disribution doing brachytherapy planning with dose sentration at point bladder. The dose distribution which is producted from the change of dose sentration has analysis to know how about brachytherapy planning succes percentage. To evidance about dose reduction because raising of bladder distance\u27s, has done with making distance and bladder dose\u27s relation graph.The results of this research is: changing of dose sentration can increasing cervical brachytherapy planing successed about 46%, raising mean distance about 1,57 mm can reduce bladder mean dose about 5,65%, inverse square law still valid for brachytherapy planning case\u27s although can\u27t used to determine how much dose at the bladder, bladder distance from point A which is can deliver dose percentage lower about 80% is more than 41 mm

Conserve Epitopes of Influenza Virus Induce Innate and Adaptive Immune Responses to Produce Specific Antibody Against M2e Protein

The existing vaccines against influenza are based onthe generation of neutralizing antibody primarilydirected against surface protein, haemagglutinin(HA) and neuraminidase (NA). However, antigenicdrift and occasional shift of these two membraneglycoproteins, HA and NA, make vaccine productioncumbersome and necessitate yearly revision ofthe vaccine seed strains by the World HealthOrganization. For these reasons, many investigatorshave often tried to look at the possibility of generatinga universal vaccine useful against more than oneinfluenza strain. The objective of research was toobtain an alternative antigen as vaccine candidatefor universal flu vaccination, instead of HA and NAcomponents. In this study, we use conserved epitopeM2e which is consist of three major componentsuch as N-terminal M2e2-24 (24 amino acids),transmembrane(59 amino acids) and C-terminal (19amino acids). We design two components of antigen,linier and branched structures. The antigens thenformulated with aluminium hydroxide gel comparedto FCA/IFA adjuvant. These vaccines were testedtheir immunogenicity, and the potency to mature thedendritic cells for stimulating either CD8+ T cell orantibody-mediated immune responses. The antibodytitre and the maturity of dendritic cell indicated bycytokines concentration such as; IFN-ã, IL2 and IL4were measured by ELISA test.The result of researchshowed that the conserved epitope of Me2 2-16 whenincorporated with P25 protein from canine distempervirus (linear structure) in alhydrogel adjuvant hasgreater potential to produce anti-M2e antibodiesthan in Freund adjuvant. Alhydrogel adjuvant hada stronger effect than Freund adjuvant. Alhydrogelalso stimulate the release of IL-2 and IL-4