Chinese Science Bulletin

Environmental factors play a significant role in maternal morbidity and mortality as well as the impairment of global pregnancy outcomes. The objective of the present research is to examine how maternal health and quality of life are affected by climate change in Bangladeshi and Pakistani population. A convenience sample of 228 participants between the ages of 18 and 35 was gathered through questionnaires. Concurrent, discriminant, and concept validity were used to validate the scale, which also demonstrated strong internal consistency reliability. The research design used in the study was des

This study aims to improve the efficiency of Brushless DC (BLDC) electric motors using a Proportional-Integral-Derivative (PID) based control system integrated with an ATmega16 microcontroller. The PID control system is applied to the Votol EM50SP controller to optimize the performance of the BLDC motor under various load conditions. The results show that the addition of the PID algorithm significantly improves the energy efficiency of the motor, with an efficiency increase of up to 96.49% at low speed (400 RPM) compared to the Votol controller without PID which only reaches 80.41%. In additio

In this paper the infinite numbers of complex structures are shown. We obtain the eigenvalues of p -summing and l_p-type operators in Banach spaces, of compact operators. We characterize the subspaces of with more than one complex structure and 𝑝 s-numbers in information-based complexity. We give a characterization of operators from l_q.

The transfer of energy as heat is always from the higher-temperature medium to the lower-temperature one, and heat transfer stops when the two mediums reach the same Heat is the form of energy that can be transferred from one system to another as a result of temperature difference. A thermodynamic analysis is concerned with the amount of heat transfer as a system undergoes a process from one equilibrium state to another. The science that deals with the determination of the rates of such temperature. Heat can be transferred in three different modes: conduction, convection, and radiation. All mo

In cases of cardiac arrest, efficient cardiopulmonary resuscitation (CPR) is essential to improve prognoses. The purpose of this study is to evaluate the level of CPR competency among paramedics in Saudi Arabia, with an emphasis on compression depth and ventilation procedures. In this investigation, 69 paramedics participated, and CPR scenarios were simulated on an Ambu manikin. With an emphasis on the accuracy and effectiveness of breathing procedures as well as the constancy of compression depth, this configuration made it possible to thoroughly evaluate each participant's approach. Accordin