ALI SI-MOHAMED,* LAURENT ANDREOLETTI, ISABELLE COLOMBET, MARIE-PAULE CARRENO, GLADYS LOPEZ, GILLES CHATELIER, MICHEL D. KAZATCHKINE, AND LAURENT BELEC Laboratoire de Virologie, Hôpital Européen Georges Pompidou, INSERM Unité 430 and Université Pierre et Marie Curie (Université Paris VI), Hôpital Broussais, and Département de Statistiques, Université Pierre et Marie Curie, Paris, France, and Lab...

Miskonsepsi merupakan masalah besar yang telah menjadi pusat perhatian bagi para pendidik dan peneliti pendidikan pada mata pelajaran ilmu pengetahuan alam, khususnya kimia. Salah satu  materi dalam kimia dianggap siswa cukup sulit sehingga tinggi kemungkinannya untuk terjadi miskonsepsi adalah kesetimbangan perlu diidentifikasi dengan cepat supaya dapat segera ditangani tidak menganggu pembel...

Massless neutrinos will mix if their couplings to gravity are flavor dependent, i.e., violate the principle of equivalence. Because the gravitational interaction grows with neutrino energy, the solar neutrino problem and the recent atmospheric neutrino data may be simultaneously explained by violations at the level of 10 to 10 or smaller. This possibility is severely constrained by present acce...

A long-range fifth force coupled to dark matter can induce a coupling to ordinary matter if the dark matter interacts with standard model fields. We consider constraints on such a scenario from both astrophysical observations and laboratory experiments. We also examine the case where the dark matter is a weakly interacting massive particle, and derive relations between the coupling to dark matt...

We discuss the possibility of testing the principle of equivalence with solar neutrinos. If there exists a violation of the equivalence principle quarks and leptons with different flavors may not universally couple with gravity. The method we discuss employs a quantum mechanical phenomenon of neutrino oscillation to probe into the non-universality of the gravitational couplings of neutrinos. We...

We study violations of the weak equivalence principle in the context of string dilaton theories. In these models some fundamental constants become spaceas well as time-dependent. We show that although universality of free fall (UFF) experiments set bounds on parameters that govern the cosmological evolution of the scalar fields, these are strongly relaxed when considering the space dependent be...