Despite pervasive educational efforts, student interest in STEM careers continues to decline in many countries. The present study seeks to better understand this phenomenon by examining how internal factors (gender) and external factors (school grades, grade level, family size) relate to Kazakh students' STEM career interests. To this end, a newly developed instrument (STEM Career Interest Survey) based on social cognitive career theory was used to assess interest in STEM careers among middle-and secondary students in Kazakhstan. The survey was completed by a sample of 396 Kazakh students in grades 7 to 12. Our statistical analyses revealed that (1) female students were generally less interested in STEM careers than male students; (2) students with higher grades in physics classes were significantly more interested in STEM careers than low-performing students; (3) students at higher grade levels were generally more interested in STEM careers than those in lower grade levels; (4) the number of siblings was positively associated with student interest in mathematics careers; and, (5) family support and role models were significantly correlated with student STEM career interest. Our findings suggest that student development of interest in STEM careers constitutes an epigenetic phenomenon that involves complex interactions between internal factors (e.g., self-efficacy) and external factors (e.g., gender
We investigate the interior Einstein’s equations in the case of a static, axially symmetric, perfect fluid source. We present a particular line element that is specially suitable for the investigation of this type of interior gravitational fields. Assuming that the deviation from spherically symmetry is small, we linearize the corresponding line element and field equations and find several classes of vacuum and perfect fluid solutions. We find some particular approximate solutions by imposing appropriate matching conditions.
Абишев М.Е. и др.the relativistic invariant Geroch definition, we analyze multipole structure using the corresponding Ernst function and we compute the lowest ten relativistic multipole moments for the static quadrupole metric. The particular choice of parameters we obtain the known solutions. i.e., the exterior Schwarzschild Solution find with the vanishing quadrupole and rotating parameter, Corresponding static q-metric find with the vanishing rotating parameter and non-zero quadrupole parameter. The multipole moments of the well-known Kerr solution are given by the vanishing quadrupole parameter and non-zero rotating parameter.
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