For solid solutions with the same arrangement of atoms, the size of a unit cell depends on the size of the atoms in the unit cell. The distance between nuclei also helps determine how strongly electrons are held, which changes the band gap energy. Samples of semiconductor CH[subscript 3]NH[subscript3]Pb(I[subscript…

As new school leaders take over the district's top jobs this fall, they and their communities face transitions. Joshua P. Starr explains that too many leaders focus on entry and fail to engage in a thoughtful and comprehensive transition process. Transition isn't just about change; it's also about loss. Organizational transition is about how…

Learning within public education takes place in diverse settings other than traditional classrooms. Constructivism, the dominant learning theory in Texas public education classrooms, falls short of giving those who lead musical ensembles (such as band, orchestra, choir) a solid epistemological foundation. The edusemiotic concept of coordination…

Undergraduate engineering students usually face difficulties understanding electric circuit concepts. Some of those difficulties regard with misconceptions students bring into the classroom and develop during the learning process. Additionally, the increasing complexity of the topics along the fundamental electric circuit course constitutes…

This article discusses developing special education teacher candidates who have a solid knowledge of scientifically aligned reading practices. Challenges in preservice teacher education are presented, including alignment of course work and clinical experiences to the robust evidence base in reading science. Key questions and resources are…

The manufacture of metal alloys is ubiquitous, yet infrequently discussed in high school coursework as concepts related to them are often too complex or abstract for beginning science students. However, earlier introduction to metallurgy in classroom settings could promote interest in practical applications of chemistry, physics, and geology due…

Evaluation capacity building (ECB) continues to attract the attention and interest of scholars and practitioners. Over the years, models, frameworks, strategies, and practices related to ECB have been developed and implemented. Although ECB is highly contextual, the evolution of knowledge in this area depends on learning from past efforts in a…

The purpose of this study was to examine the interactions between in-service chemistry teachers' science teaching orientations and other components of their pedagogical content knowledge (PCK). Two experienced chemistry teachers participated in this study. Data were collected through interviews, classroom observations, and field notes as the…

Ethnomathematics can empirically improve the cognitive abilities of students in elementary and secondary schools. However, in undergraduate study, there are still limited studies on integrating ethnomathematics in learning resources. This study aims to apply interpolation in modelling polynomial functions and integral volume on the shape of…

A detailed study of the ongoing situation shows that the solid waste management in Kabul is not appropriate and a set of challenges exists in a different part of the system, local people have more concern with solid waste, but from another side, they devote less attention to them. Most of them do not have knowledge about the impact of hazardous…

Calculating the duration of a motion when the applied net force on the moving body changes with time is usually a challenging task. In most cases, the only example of the duration of a motion when the acceleration is not constant presented to introductory physics students worldwide is the example of harmonic motion. A discussion with respect to…

This paper presents strength and thermal studies, as well as an analysis of the design material for the development of a nanosatellite model. By using the SolidWorks software environment, an effective solid-state finite-element model of a nanosatellite are developed, on the basis of which the stress-strain state of the nanosatellite is analyzed,…

Background: The Test of Masticating and Swallowing Solids (TOMASS) is an international standardized swallowing assessment tool. However, its psychometric characteristics have not been analysed in patients with dysphagia. Aims: To analyse TOMASS's (1) inter- and intra-rater reliability in a clinical population of patients with dysphagia, (2)…

The business management problem addressed in this study results from the need for succession planning practices in Higher Education Institutions (HEIs). This systematic qualitative review examined which succession planning practices improve knowledge management and employee retention within HEIs. Despite the growing number of baby boomer…

The weaning period, in which complementary foods are introduced into the infant's diet, can be challenging, with dislike of novel foods known to be common. However, even though at six months (the current recommended age for the introduction of complementary foods) most infants are able to feed themselves with graspable pieces of food, the majority…