Factors Related to the Implementation of Evidenced-based Practice (EBP) of Nursing Staffing Levels in Hospitals: A Literature Review

The implementation of Evidenced-based practice (EBP) was one of the factors in increasing the quality of health services as an ideal problem-solving approach. The ability of nurses to appliance EBP was influenced by many factors, not only on individual nurses consisting by the support of unit leader and colleague. The purpose of this study was to determine the factors associated with the implementation of EBP at the care room level establishing on the support of coworkers and nursing managers. This writing used a literature review study, from several databases namely PubMed, ProQuest, Google Scholar, and ScienceDirect with a limitation of the last 5 years. 17 journals met the inclusion criteria and the results of a literature review study show: eight journals conclude that the support of colleagues and authority in changing practices affects the implementation of EBP, 13 journals concluded the role of managerial nurses affects the implementation of EBP consisting of leadership support and mentorship including the lack of knowledge and skills of nursing leaders regarding EBP. Data from the collected and identified literature study clearly showed that EBP knowledge and skills of nursing leaders related to EBP are important factors in increasing the implementation of EBP but co-worker factors can be a supporter and also an obstacle to the implementation of EBP if it is not well managed.

The Noether Symmetries of the Lagrangians of Spacetimes

In this thesis Noether symmetries are used for the classi cation of plane symmetric, cylindrically symmetric and spherically symmetric static spacetimes. We consider general metrics for these spacetimes and use their general arc length minimizing Lagrangian densities for the classi cation purpose. The coe cients of the metric in case of plane symmetric static spacetime are general functions of x while the coe cients of cylindrically symmetric and spherically symmetric static spacetimes are general functions of the radial coordinate r. The famous Noether symmetry equation is used for the arc length minimizing Lagrangian densities of these spacetimes. Noether symmetries and particular arc length minimizing Lagrangian densities of plane symmetric, cylindrically symmetric and spherically symmetric static spacetimes are obtained. Once we get the particular Lagrangian densities, we can obtain the corresponding particular spacetimes easily. This thesis not only provides classi cation of the spacetimes but we can also obtainrst integrals corresponding to each Noether symmetry. Theserst integrals can be used to de ne conservation laws in each spacetime. By using general arc length minimizing Lagrangian for plane symmetric, cylindrically symmetric and spherically symmetric static spacetimes in the Noether symmetry equation a system of 19 partial di erential equations is obtained in each case. The solution of the system in each case provides us three important things; the classi cation of the spacetimes, the Noether symmetries and the correspondingrst integrals which can be used for the conservation laws relative to each spacetime. Energy and momentum, the de nitions of which are the focus of many investigations in general relativity, are important quantities in physics. Since there is no invariant de - nitions of energy and momentum in general relativity to de ne these quantities we use the ii iii approximate Noether symmetries of the general geodesic Lagrangian density of the general time conformal plane symmetric spacetime. We use approximate Noether symmetry condition for this purpose to calculate the approximate Noether symmetries of the action of the Lagrangian density of time conformal plane symmetric spacetime. From this approach, those spacetimes are obtained the actions of which admit therst order approximation. The corresponding spacetimes are the approximate gravitational wave spacetimes which give us information and insights for the exact gravitational wave spacetimes. Some of the Noether symmetries obtained here carry approximate parts. These approximate Noether symmetries can further be used tond the correspondingrst integrals which describe the conservation laws in the respective spacetimes. Some of the vacuum solutions of Einsteineld equations for plane symmetric, cylindrically symmetric and spherically symmetric static spacetimes have also been explored.