Search results

The study’s objective was to ascertain the connection between secondary school students' test anxiety, academic self-concept, motivation and academic performance in mathematics. The difference between the academic performances of male and female secondary school students who exhibit high and low test anxiety, academic self-concept and motivation levels in mathematics.

Four hypotheses and four research questions were adopted. The design is a correlation. 42,299 mathematics students in senior school year two (SS2) made up the research population. A sample of 1,650 students was selected through a multi-stage sampling procedure. The main instruments used were the Mathematics Test Anxiety Questionnaire (MTAQ), Academic Self-Concept Questionnaire (ASQ) and Academic Motivation Questionnaire (AMQ) and students’ math scores. These instruments were validated by three experts and the reliability coefficients of 0.69, 0.68 and 0.68 were obtained for MTAQ, ASQ and AMQ, respectively, using Cronbach alpha. Pearson product moment correlation was used to analyze the data.

The study’s results showed a correlation between secondary school students' academic performance in mathematics and test anxiety, academic self-concept and motivation. There was a significant difference between secondary school male and female students' test anxiety; there was a significant difference between secondary school male and female students' self-concept and academic performance in mathematics, and there was a significant difference between secondary school male and female students' motivation and academic performance in mathematics.

The major contribution of this study is to investigate the connection between test anxiety, academic self-concept motivation and students’ mathematics performance. There is a difference between psychological variables, gender and mathematics performance.

As a result of both shifting social concerns and stricter legislation, many companies are seeking innovative and sustainable solutions for both primary and secondary packaging. The craft beer industry has made the most notable advancements with a variety of alternatives to the traditional secondary packaging (e.g. plastic rings) used to link beer cans. Yet, despite the impact packaging has on consumer purchase behavior and the environment, secondary packaging has received far less attention in the literature. This study aims to understand consumer perceptions of craft beer secondary packaging on consumers’ willingness to buy via the underlying mechanisms of perceived packaging innovation and sustainability.

A single-factor between-subjects experiment with four conditions (secondary packaging format: Pak-Tech holder, Keel Clip holder, Glue-Pack holder, Biodegradable holder) was conducted with 354 participants to test the hypothesized serial mediation model.

The results demonstrate that none of the secondary packaging styles had a direct effect on willingness to buy, meaning that the package style alone does not influence a consumer’s purchase decisions. Critically, the results also revealed indirect effects; specifically, the Keel Clip and Glue-Pack six-pack can holders were perceived as more innovative than the Pak-Tech holder, which in turn positively influenced perceptions of packaging sustainability and subsequent willingness to buy.

The authors’ results extend the research on sustainable secondary packaging and aids craft breweries along with other beverage producers in making informed decisions as the push for sustainable packaging becomes more prominent.

This study aims to minimize the pressure drop across wavy microchannels using secondary branches without compromising its capacity to transfer the heat. The impact of secondary flows on the pressure drop and heat transfer capabilities at different Reynolds numbers are investigated numerically for different wavy microchannels. Finally, different channels are evaluated using performance evaluation criteria to determine their effectiveness.

To investigate the flow and heat transfer capabilities in wavy microchannels having secondary branches, a 3D conjugate heat transfer model based on finite volume method is used. In conventional wavy microchannel, secondary branches are introduced at crest and trough locations. For the numerical simulation, a single symmetrical channel is used to minimize computational time and resources and the flow within the channels remains single-phase and laminar.

The findings indicate that the suggested secondary channels notably improve heat transfer and decrease pressure drop within the channels. At lower flow rates, the secondary channels demonstrate superior performance in terms of heat transfer. However, the performance declines as the flow rate increased. With the same amplitude and wavelength, the introduction of secondary channels reduces the pressure drop compared with conventional wavy channels. Due to the presence of secondary channels, the flow splits from the main channel, and part of the core flow gets diverted into the secondary channel as the flow takes the path of minimum resistance. Due to this flow split, the core velocity is reduced. An increase in flow area helps in reducing pressure drop.

Many complex and intricate microchannels are proposed by the researchers to augment heat dissipation. There are challenges in the fabrication of microchannels, such as surface finish and achieving the required dimensions. However, due to the recent developments in metal additive manufacturing and microfabrication techniques, the complex shapes proposed in this paper are feasible to fabricate.

Wavy channels are widely used in heat transfer and micro-fluidics applications. The proposed wavy microchannels with secondary channels are different when compared to conventional wavy channels and can be used practically to solve thermal challenges. They help achieve a lower pressure drop in wavy microchannels without compromising heat transfer performance.

The secondary phase decreased the corrosion resistance because of the segregation of Cr and Mo. Therefore, this paper aims to study the precipitation condition and the effect of secondary phase with volume fraction on corrosion behavior.

Secondary phase precipitated approximately from 375°C to 975°C because of saturated Cr and Mo at grain boundary by growth of austenite. Therefore, heat treatment from 800°C to 1,300°C was applied to start the precipitation of the secondary phase.

The secondary phase is precipitated at 1,020°C because of segregation by heterogeneous austenite. The growth of austenite at 1,000°C needs the time to saturate the Cr and Mo at grain boundary. When the volume fraction of austenite is 56 per cent (14 min at 1,000°C), the secondary phase is precipitated with grain boundary of austenite. The secondary phase increased the current density (corrosion rate) and decreased the passivation. That is checked to the critical pitting temperature (CPT) curves. The 1 per cent volume fraction of secondary phase decreased CPT to 60°C from 71°C.

The precipitation of secondary phase not wants anyone. Casted super-duplex stainless steel (SDSS) of big size precipitates the secondary phase. This study worked the precipitation condition and the suppression conditions of secondary phase.

Manufacturers need precipitation condition to make high-performance SDSS.

The corrosion resistance of SDSS is hard the optimization because SDSS is dual-phase stainless steel. The precipitation of the secondary phase must be controlled to optimize of the corrosion resistance of SDSS. Anyone not studied the precipitation condition of secondary phase and the effect of secondary phase with volume fraction on corrosion behavior of SDSS.

The purpose of this paper is to construct a framework for discussion and future studies of the secondary use of electromagnetic spectrum.

The paper establishes some useful definitions and then systematically applies them to the secondary use case. This is extrapolated to develop a framework.

It is important to be careful to circumscribe discussions around secondary use, as each component of the framework poses different problems for implementation and research.

The paper proposes a way to structure the discussion of and research into secondary use of electromagnetic spectrum, which can apply significant clarity to future work in this area.

Since the 1960s, Egypt has sought to increase equality in access to higher education. Data show that completion of pre-tertiary education has become more equal. However, this trend toward equality did not extend to higher education. Rather, entry to higher education has become more unequal during this period, principally due to tracking at the secondary level. Secondary track is highly correlated with wealth: students from the poorest families overwhelming attend technical education; most children from wealthy families attend general (academic) secondary. Lucas (2001) has called this relationship between wealth and tracking “Effectively Maintained Inequality.”

This chapter provides a framework for ethical decision making related to inclusive educational opportunities for secondary students with intellectual and developmental disabilities (I/DD) based on policies and practices in the United States. Relevant research findings are utilized to explore ethical principles involved in educational decision making for secondary students with I/DD, with discussions on how these are intertwined with U.S. policy. I/DD and inclusion, as described in the research literature and U.S. policy, are defined and the current status of inclusive practices are described. Next, an exploration of the rationale, as supported by empirical evidence, for educating students at the secondary level with I/DD, primarily with their peers who do not have identified disabilities, is shared along with the counter-narrative. Connections of inclusion to post-school outcomes and the lived educational experiences of students with and without disabilities and educators are considered, including ethical dilemmas and conflicts. Finally, factors influencing the application of inclusionary practices are provided.

The circular economy is a system that aims to conserve resources at every level for as long as possible with a minimization of waste. The core concept of the circular economy is to improve resource efficiency and prevent valuable materials from leaking out of the system. Better use of increasingly scarce resources can provide both economic and environmental benefits. When excess inventory, returned products, and end-of-life products are disposed of improperly, unnecessary waste is created, often with a detrimental impact to the environment. An effective system must exist to facilitate the proper handling of these products, and secondary markets are a crucial component in this system. In this chapter, we discuss the secondary markets’ role as an important mechanism for achieving a circular economy.

Within individual countries, the paths towards increasing educational attainment are not always linear and individuals are not equally affected. Differences between boys’ and girls’ educational attainments are a common expression of this inequality as boys are more often favored for continued schooling. We examine the importance of birth cohort, sibship size, migration, and school accessibility for explaining both the gender gap and its narrowing in secondary schooling in one district in Northeast Thailand between 1984 and 1994. Birth cohort is a significant explanation for the narrowing of the gender gap. Migration, sibship size, and remote village location are important explanations for limited secondary education opportunities, especially for girls.

Girls’ access to education has improved in many of the world's developing countries. These countries are striving to meet the United Nations Millennium Development Goals (MDGs) requiring them to provide gender equality, promote the empowerment of women, and establish universal primary education (UPE) by 2015. The success of UPE in achieving gender equality in enrollment in those countries able to institute it is encouraging. Where previously girls trailed boys in their ability to access education due to parent inability or reluctance to pay the costs, they are now entering primary schools in comparable numbers (UNESCO, 1999, 2006).