Samuel R. Hodge and Martha James-Hassan
In this chapter, we discuss teaching physical education to Black male students in urban schools. We present a brief account of the history and status of physical education and…
Abstract
In this chapter, we discuss teaching physical education to Black male students in urban schools. We present a brief account of the history and status of physical education and specifically examine school physical education, particularly for Black male students in urban geographical contexts. We also offer strategies to counter the narrative of Black male school failure and present strategies for addressing the needs of urban teachers and Black male students.
SEPTEMBER this year will be unique in the history of the librarian in England in that for the first time in nearly sixty years the annual conference of the Library Association has…
Abstract
SEPTEMBER this year will be unique in the history of the librarian in England in that for the first time in nearly sixty years the annual conference of the Library Association has already become a memory only. There are those who profess to believe that the conference should be restored to the autumn months. It may be suggested on the other hand that the attendance at Margate lent no assistance to that point of view; indeed, the Margate conference was one of the most pleasant, one of the most successful, of which we have record. Nevertheless, if it can be proved that any large body of librarians was unable to be present owing to the change of month, it appears to us that the matter should be considered sympathetically. Although no one holds any longer the view that one week's attendance at a conference will teach more than many months' study in hermit‐like seclusion—the words and sentiments are those of James Duff Brown—because to‐day there is much more intimate communication between librarians than there was when that sentiment was expressed, there is enormous value, and the adjective is not an exaggeration, in one large meeting of librarians in body in the year. It is an event to which every young librarian looks forward as the privilege to be his when he reaches a high enough position in the service; attendance is a privilege that no librarian anywhere would forego. And this, in spite of the fact that there is usually a grumble because the day is so full of meetings that there is very little chance of such recreation as a seaside, or indeed any other, place visited, usually provides for the delegates.
S.B. Valdez, R.K. Zlatev, W.M. Schorr, G.N. Rosas, Ts. Dobrev, M. Monev and I. Krastev
To develop and test a rapid method for evaluation of the corrosion protection (CP) of carbon steel (CS) by vapour corrosion inhibitors (VCI) films.
Abstract
Purpose
To develop and test a rapid method for evaluation of the corrosion protection (CP) of carbon steel (CS) by vapour corrosion inhibitors (VCI) films.
Design/methodology/approach
The determination of the CP by VCI on CSs is commonly carried out in a chamber applying neutral salt spray (NSS) and usually it takes many days. The common disadvantage of the various rapid methods created until now is the need of special laboratory equipment making their application complicated and inconvenient for field tests. The method for CP measurement of VCI films on CS described in this study is based on measurement of the height of the anodic peak under galvanostatic condition applied earlier on other types of films and coatings. By means of a calibration plot: peak height (V) vs NSS protection time (s), CP of VCI films on CS specimens expressed in hours NSS is determined in a few seconds without using an NSS chamber. Measurements of CP by VCI films under field conditions are performed applying a hand held tester.
Findings
Two groups of CS UNS G10180 steel specimens with increasing thickness of VCI films were studied – one in an NSS chamber and the second by the application of a corrosion tester. The correlation between the results obtained for the two groups of specimens was found and a calibration plot was made.
Practical implications
Based on this method, a special corrosion tester was developed, able to measure under field conditions as well.
Originality/value
The method subject of the paper is a further development of a galvanostatic method developed by the authors for CP evaluation of chromate films of Zn and Cd coatings. The method was modified according to the properties of VCI films
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Merita Zulfiu Alili and Nick Adnett
The last two decades have been characterised by a rise in income and wage inequality in a wide range of countries, including European transition countries. The rise in…
Abstract
Purpose
The last two decades have been characterised by a rise in income and wage inequality in a wide range of countries, including European transition countries. The rise in globalisation is one major factor explaining this increasing wage inequality. International trade and FDI have increased significantly since the beginning of transition and the purpose of this paper is to focus on whether FDI plays an important role in explaining the pattern of wage inequality in selected transition countries.
Design/methodology/approach
A cross-country empirical investigation has been conducted using two alternative measures of wage inequality: the Gini coefficient and the Theil index. Several model specifications and estimation strategies have been employed to obtain consistent estimates and to check for the robustness of the results.
Findings
The results indicate that a rising share of inward FDI in gross domestic product (GDP) increased wage inequality in transition economies, though its overall effect was relatively small. Considering the long run, there is no clear evidence of a concave relationship between FDI and wage inequality, which may be a consequence of the relatively low levels of FDI in many transition countries.
Practical implications
Inwards FDI has made a small contribution to increasing wage inequality in European transition economies. However, its overall beneficial effects on labour markets in these countries suggest that rather than restricting FDI governments should target increasing the supply of skilled labour.
Originality/value
This new empirical evidence supports the hypothesis that an increased inward FDI stock as a share of GDP increases wage inequality in transition economies, however, this relationship is a complex one. Differences in average wages, wage differentials, employment shares of skilled workers and relative size of the foreign-owned sector are all likely to be important for the behaviour of wage inequality.
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The purpose of this paper is to analyse the impact of foreign direct investment (FDI) on urban-rural income inequality in China.
Abstract
Purpose
The purpose of this paper is to analyse the impact of foreign direct investment (FDI) on urban-rural income inequality in China.
Design/methodology/approach
This study uses the provincial-level panel data and employs the fixed-effects instrumental variable regression technique to investigate empirically the impact of FDI on urban-rural income inequality in China.
Findings
The study finds that while FDI has directly contributed to reducing urban-rural income inequality through employment creation, knowledge spillovers and contribution to economic growth, FDI has also contributed to increasing urban-rural income inequality through international trade.
Practical implications
The study has some policy implications. First, as the study finds that FDI not only contributes to reducing urban-rural income inequality through employment creation, knowledge spillovers and contribution to economic growth, but also contributes to increasing urban-rural income inequality through international trade, therefore, apart from improving local economic and technological conditions to attract more FDI inflows, China should re-design FDI policies by shifting away from encouraging export-oriented FDI to encouraging FDI flows into the industries and sectors in line with China’s overall economic structural adjustments and industrial upgrading. Second, policies should focus on increasing investment in infrastructure development and in public education, which not only can reduce urban-rural income inequality but also can attract more FDI inflows. And finally policies should be designed to accelerate urbanisation development by focusing on urban-rural integrated development, household registration system reform and proper settlement of rural migrants in urban areas, thus reducing urban-rural income inequality.
Originality/value
The paper makes two major contributions to the literature. First, the paper adopts the fixed-effects instrumental variable regression technique to deal with the endogeneity issues in estimating the impact of FDI on urban-rural income inequality, producing more consistent estimates. Second, the paper investigates not only the direct impact of FDI on urban-rural income inequality through the effects of employment creation, knowledge spillovers and contribution to economic growth, but also the indirect impact of FDI on urban-rural income inequality through its activities in international trade, adding new empirical evidence to the sparse literature on the impact of FDI on income inequality in China.
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Jesús Manuel Fernandez Oro, Andrés Meana-Fernández, Monica Galdo Vega, Bruno Pereiras and José González Pérez
The purpose of this paper is the development of a CFD methodology based on LES computations to analyze the rotor–stator interaction in an axial fan stage.
Abstract
Purpose
The purpose of this paper is the development of a CFD methodology based on LES computations to analyze the rotor–stator interaction in an axial fan stage.
Design/methodology/approach
A wall-modeled large eddy simulation (WMLES) has been performed for a spanwise 3D extrusion of the central section of the fan stage. Computations were performed for three different operating conditions, from nominal (Q_N) to off-design (85 per cent Q_N and 70 per cent Q_N) working points. Circumferential periodic conditions were introduced to reduce the extent of the computational domain. The post-processing procedure enabled the segregation of unsteady deterministic features and turbulent scales. The simulations were experimentally validated using wake profiles and turbulent scales obtained from hot-wire measurements.
Findings
The transport of rotor wakes and both wake–vane and wake–wake interactions in the stator flow field have been analyzed. The description of flow separation, particularly at off-design conditions, is fully benefited from the LES performance. Rotor wakes impinging on the stator vanes generate a coherent large-scale vortex shedding at reduced frequencies. Large pressure fluctuations in the stagnation region on the leading edge of the vanes have been found.
Research limitations/implications
LES simulations have shown to be appropriate for the assessment of the design of an axial fan, especially for specific operating conditions for which a URANS model presents a lower performance for turbulence description.
Originality/value
This paper describes the development of an LES-based simulation to understand the flow mechanisms related to the rotor–stator interaction in axial fan stages.
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Mario Celso Genovez, Luiz Henrique Araujo, Tiago Dinis Pinto and Radim Hrdina
This paper aims to describe the results of lab testing of a newly developed organic inhibitor V-active VCIs. The findings demonstrate that it is possible to eliminate or reduce…
Abstract
Purpose
This paper aims to describe the results of lab testing of a newly developed organic inhibitor V-active VCIs. The findings demonstrate that it is possible to eliminate or reduce the oxidizing action of water, thereby extending the allowable time before painting after hydrojetting, and that the new corrosion inhibitor technology does not interfere with the final quality of paint adhesion.
Design/methodology/approach
Metallic specimens were treated/washed in standard lab condition. A 2 per cent V-active VCI SPH1712 water solution was prepared by diluting the inhibitor in industrial water. Metal sample plates were examined after blasting and after subsequent drying, and were submitted to the paint adhesion tests, cathodic disbondment, total soluble salts, time for formation of flash rust and cyclic corrosion test type III (20 cycles), to evaluate the duration of temporary protection and oxidation prevention and influence on paint adherence.
Findings
Using the V-active VCI proposed technology, it was possible to minimize or eliminate the oxidizing action of the water when the metal is exposed to saline moisture in a closed environment, extending the acceptable time before painting without interfering with the final quality of painting.
Practical implications
The proposed technology allows an increase in the prepared (wet blasted) steel surface during cleaning and preparation, thereby reducing labor and product costs, and reduces water consumption during the preparation process. Practical applications in the shipbuilding, ship maintenance and oil and gas production industries include the preservation of internal tubes and pipes, protection during hydrostatic test processes and cleaning with water and corrosion prevention in diesel tanks contaminated with water.
Originality/value
The intent of this paper is to present the obtained results for a new formulation of organic chemical inhibitors that use water as the application medium. In addition to this property, this group of organic inhibitors maintains the properties of volatile inhibitors. Thus, these compounds are generically known as V-active VCIs.
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John H. Bickford III and Cynthia W. Rich
Common Core State Standards Initiative mandates increased readings of informational texts within English Language Arts starting in elementary school. Accurate, age-appropriate…
Abstract
Common Core State Standards Initiative mandates increased readings of informational texts within English Language Arts starting in elementary school. Accurate, age-appropriate, and engaging content is at the center of effective social studies teaching. Textbooks and children’s literature—both literary and informational—are prominent in elementary classrooms because of the esoteric nature of primary source material. Many research projects have investigated historical accuracy and representation within textbooks, but few have done so with children’s trade books. We examined children’s trade books centered on three historical figures frequently incorporated within elementary school curricula: Eleanor Roosevelt, Rosa Parks, and Helen Keller. Findings revealed various forms of historical misrepresentation and differing levels of historicity. Reporting such lacunae is important for those involved in curricular decisions. We believe children’s books, even those with historical omissions and misrepresentations, provide an unique opportunity for students to incorporate and scrutinize diverse perspectives as they actively assemble historical understandings. All secondary narratives, even historically representative children’s books, can benefit from primary source supplementation. We guide teachers interested in employing relevant and rich primary source material.
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Leslie E. Sekerka, Anne M. Brumbaugh, José Antonio Rosa and David Cooperrider
Organizational development and change may be initiated from two different starting points. A diagnostic approach begins with an examination of problems to assess and correct…
Abstract
Organizational development and change may be initiated from two different starting points. A diagnostic approach begins with an examination of problems to assess and correct dysfunction. In contrast, the Appreciative Inquiry approach begins by identifying an organization’s strengths as resources for change. An experimental study was conducted to compare the processes and outcomes that arise during the first phase of each approach. Results show that both approaches lead to different but favorable and complementary outcomes. Both participant gender and the gender construction of the dyads in which individuals participated moderate these effects in unexpected ways. The implications for understanding the processes by which both methods work, and the potential for combining them, are discussed
Camilla Borgna and Antonio Martella
This study examines online hate speech targeting gender-normative defiance during the 2023 Sanremo Music Festival in Italy, focusing on the performance of the rapper Rosa…
Abstract
This study examines online hate speech targeting gender-normative defiance during the 2023 Sanremo Music Festival in Italy, focusing on the performance of the rapper Rosa Chemical, who faced backlash after kissing a male singer on stage. Using machine learning analysis techniques, we compare user comments across three social media platforms: Facebook, Instagram and TikTok. Results reveal significant differences in the prevalence and nature of hate speech across these platforms, with Facebook exhibiting the highest levels of hate speech (35.9%), predominantly driven by anger and disgust, while TikTok had the lowest (1.9%). Hate speech was strongly correlated with negative emotions like anger and disgust, particularly on Facebook. Moreover, while on Facebook comments characterised by negative emotions produced more reactions, on TikTok comment negativity was not correlated with the number of responses. These findings are consistent with the interpretation that older audiences on platforms like Facebook feel more threatened by gender-normative challenges and resort to online hate speech as a form of cultural backlash. Moreover, platform-specific moderation policies, content distribution mechanisms and social norms about the perceived appropriateness of negative content may influence the amount of hate speech and the degree to which users decide to engage with it. This research study contributes to the understanding of the ‘supply side’ of online hate speech by highlighting how platform architecture and user demographics influence the production and reaction to hate speech.