Phase diagram of the Bose Kondo-Hubbard model

We study a bosonic version of the Kondo lattice model with an on-site repulsion in the conduction band, implemented with alkali atoms in two bands of an optical lattice. Using both weak and strong-coupling perturbation theory, we find that at unit filling of the conduction bosons the superfluid to Mott insulator transition should be accompanied by a magnetic transition from a ferromagnet (in the superfluid) to a paramagnet (in the Mott insulator). Furthermore, an analytic treatment of Gutzwiller mean-field theory reveals that quantum spin fluctuations induced by the Kondo exchange cause the otherwise continuous superfluid to Mott-insulator phase transition to be first order. We show that lattice separability imposes a serious constraint on proposals to exploit excited bands for quantum simulations, and discuss a way to overcome this constraint in the context of our model by using an experimentally realized non-separable lattice. A method to probe the first-order nature of the transition based on collapses and revivals of the matter-wave field is also discussed.Comment: 10 pages, 5 figures, V2: extended discussion of effective Hamiltonians and mean-field theory, added Fig.

Education through WhatsApp Media in Changing of Smoking Behavior among Senior High School Students

Teenagers, who are considerably susceptible to smoking, must be educated to prevent smoking behavior that can cause health problems and even death. The aim of this study was to assess the effect of education through social media such as WhatsApp in the modification of smoking behaviors among senior high school students in Pangkep District, Indonesia. It employed a quasi-experimental, pretest-posttest-only control group design. The experimental group received education in the use of WhatsApp social media, while the control group was provided with leaflets. Data were collected through observation and interviews with a total of 180 students in both groups, with 90 students in each. Data analysis used a paired sample t-test and an independent sample t-test. The study suggested that disseminating health information through WhatsApp media about the dangers of teenage smoking was more effective than leaflets in changing student behavior

On N=2 low energy effective actions

We propose a Wilsonian action compatible with special geometry and higher dimension N=2 corrections, and show that the holomorphic contribution F to the low energy effective action is independent of the infrared cutoff. We further show that for asymptotically free SU(2) super Yang-Mills theories, the infrared cutoff can be tuned to cancel leading corrections to F. We also classify all local higher-dimensional contributions to the N=2 superspace effective action that produce corrections to the Kahler potential when reduced to N=1 superspace.Comment: 9 pages, Late

Time-resolved Observation and Control of Superexchange Interactions with Ultracold Atoms in Optical Lattices

Quantum mechanical superexchange interactions form the basis of quantum magnetism in strongly correlated electronic media. We report on the direct measurement of superexchange interactions with ultracold atoms in optical lattices. After preparing a spin-mixture of ultracold atoms in an antiferromagnetically ordered state, we measure a coherent superexchange-mediated spin dynamics with coupling energies from 5 Hz up to 1 kHz. By dynamically modifying the potential bias between neighboring lattice sites, the magnitude and sign of the superexchange interaction can be controlled, thus allowing the system to be switched between antiferromagnetic or ferromagnetic spin interactions. We compare our findings to predictions of a two-site Bose-Hubbard model and find very good agreement, but are also able to identify corrections which can be explained by the inclusion of direct nearest-neighbor interactions.Comment: 24 pages, 7 figure

Plugging the Gap and Niching the NICHE: Nursing Informatics Competencies for Higher Education

Despite the rapid advancement and evolution of nursing informatics applications in healthcare, the incorporation and refurbishing of undergraduate informatics competencies in the curriculum has been organized. the integration of informatics in the Philippine curriculum began decade ago. However, it is still not identified whether these initiatives are successful in enhancing NI skills among graduates considering the low rate of technology utilization by most hospitals in the country. As a result, it requires a global need for nursing informatics competencies to be updated and revisited into the nursing curriculum. The objective of this study is to gather accord from the literature and to determine the definition of fundamental nursing informatics competencies for baccalaureate nursing programs in the Philippines. A review of related studies and corroboration of related literature such as different nursing curricula, perspectives of nursing informatics competencies in every country and to the resource organizations standards providing trainings, conducts research and guide HEIs was performed. International and local organizations were preparing the advancement of informatics through research, trainings, continuous quality improvement, and innovations in HIT. The identified common ground plugging the gap in nursing informatics competencies were nursing care and management proficiencies, information literacy and management, computer skills, health facilities’ technology resources, and ethics and legal understanding in HIT (NICHE). The prior competencies (basic computer skills, information literacy, and information) should be adaptable to local differences and consulted to industry partners and stakeholders. These attempts at competency standardization have to be balanced with suppleness to account for local variations and conditions.Despite the rapid advancement and evolution of nursing informatics applications in healthcare, the incorporation and refurbishing of undergraduate informatics competencies in the curriculum has been organized. the integration of informatics in the Philippine curriculum began decade ago. However, it is still not identified whether these initiatives are successful in enhancing NI skills among graduates considering the low rate of technology utilization by most hospitals in the country. As a result, it requires a global need for nursing informatics competencies to be updated and revisited into the nursing curriculum. The objective of this study is to gather accord from the literature and to determine the definition of fundamental nursing informatics competencies for baccalaureate nursing programs in the Philippines. A review of related studies and corroboration of related literature such as different nursing curricula, perspectives of nursing informatics competencies in every country and to the resource organizations standards providing trainings, conducts research and guide HEIs was performed. International and local organizations were preparing the advancement of informatics through research, trainings, continuous quality improvement, and innovations in HIT. The identified common ground plugging the gap in nursing informatics competencies were nursing care and management proficiencies, information literacy and management, computer skills, health facilities’ technology resources, and ethics and legal understanding in HIT (NICHE). The prior competencies (basic computer skills, information literacy, and information) should be adaptable to local differences and consulted to industry partners and stakeholders. These attempts at competency standardization have to be balanced with suppleness to account for local variations and conditions