International Tables Research Articles

Flavonoid content of selected foods – A comparison of four international composition tables

The content of flavonoids, widely found in plant-based foods, might differ depending on which food composition table (FCT) is being used. In this study, we investigated the variation and comparability in the flavonoid content of selected foods across four international food composition tables. Flavonoid estimates were derived for all foods available in each table, and comparisons were carried out for foods common between tables. Bias percentage, 95 % limits of agreement, and intra-class correlation coefficients (ICCs; 95 % confidence intervals [95 %CI]) were estimated. Phenol-Explorer and Indian FCT showed moderate level of agreement for total flavonoid (ICC 0.50 and 0.57 respectively) when compared to the USDA table. eBASIS for total flavonoids and anthocyanidins (ICC 0.67 and 0.85, respectively), and Indian FCT for flavanols and flavanones (ICC 0.71 and ICC 0.85, respectively) showed moderate-to-good level of agreement, and low level of agreement for other subclasses when compared to Phenol Explorer. Several flavonoid subclasses showed low to moderate levels of agreement between FCTs, whilst others (including total flavonoid intake) had lower levels of agreement. Methodological approaches in the measurement of flavonoid content of foods across tables, and continued efforts to improve harmonization of these databases would contribute to improve quantification of flavonoid content.

Why English? Exploring Chinese early career returnee academics’ motivations for writing and publishing in English

To improve their research performance in international league tables, many universities in non-English language dominant settings recruit academic returnees in the hope that they will increase the quantity and quality of articles published in English-medium internationally indexed journals. This study explores Chinese early career returnee academics’ motivations for writing and publishing in English. Utilising ecological systems theory, the findings show that the microsystem is reflected in the early career returnee academics’ interaction with collaborators, while national policies constitute the exosystem. The academic culture has a noteworthy impact at the macrosystem level. This study contributes to the understanding of early career returnee academics’ motivations to write and publish in English which will assist policymakers and university administrators to create a more beneficial environment to promote the accomplishments of academic returnees.

Bracing Ourselves: Embracing Policy Changes through a Long-Standing University–Schools Teacher Education Partnership in England

We articulate the principles behind our practices as teacher educators for an Initial Teacher Education (ITE) provider in South-West England working in partnership with local schools. We position them as ‘braces’ that enable us not only to withstand but ‘embrace’ the challenges of the current policy environment, which imposes braces of its own. All ITE providers in England must present their curriculum and teaching plans for approval by the Department for Education, one of many significant changes to ITE required in England over the last decade. Furthermore, for such plans to be approved they must assume a model of schooling based on knowledge acquisition in tension with not only our own motivations but also a broader (global) conversation among teacher educators critical of policy priorities for schooling and professional teacher formation that prioritise success in high-stakes tests and international league tables. The braces/principles emerge through articulating our collective understandings of and concerns with the policy braces. Our principles connect to the processes we feel confident are necessary aspects of ‘becoming’ teachers and can hold our Post Graduate Certificate in Education (PGCE) together, going forwards. The braces—becoming an informed educator; becoming an ethical actor; becoming a reflective practitioner—have a distinctive form of reflexivity at their heart and should apply to everyone across our partnership: us, as university-based teacher educators; school-based colleagues; and pre-service teachers. We offer our approach and the braces/principles we have developed to others also struggling to reconcile their own notions of good teacher education with national policy imperatives.

The International Tables Symmetry Database

The International Tables Symmetry Database (https://symmdb.iucr.org/), which is part of International Tables for Crystallography, is a collection of individual databases of crystallographic space-group and point-group information with associated programs. The programs let the user access and in some cases interactively visualize the data, and some also allow new data to be calculated `on the fly'. Together these databases and programs expand upon and complement the symmetry information provided in International Tables for Crystallography Volume A, Space-Group Symmetry, and Volume A1, Symmetry Relations between Space Groups. The Symmetry Database allows users to learn about and explore the space and point groups, and facilitates the study of group–subgroup relations between space groups, with applications in determining crystal-structure relationships, in studying phase transitions and in domain-structure analysis. The use of the International Tables Symmetry Database in all these areas is demonstrated using several examples.

A novel algorithm for calculation of Fourier and asymmetric units.

A new method is presented for determining asymmetric and Fourier units based on plane groups for all space groups. These units are specifically designed to improve the calculation of fast Fourier transforms compared with the units derived from asymmetric units in the International Tables for Crystallography, Vol. A. The algorithm can be easily implemented into existing crystallographic programs using a short computer code.

Examining Teaching for Mastery as an instance of ‘hyperreal’ cross national policy borrowing

ABSTRACT To improve education performance at home, countries cross nationally policy-borrow from jurisdictions ranked highly in international league tables. This paper examines a practical example of one such instance of policy borrowing, Teaching for Mastery (TfM). Over a six year period, interviews were conducted with teachers working in primary schools in the East Midlands region of England. The focus of these interviews was to explore informants’ experiences of enacting TfM and their analysis of the UK government’s motives for undertaking this borrowing. Applying Baudrillard’s ideas around hyperreality and image to these data indicated two key themes: 1) TfM discourses masked crucial aspects of the original policy, with the result that 2) TfM became non-relational to the original and thus hyperreal. The paper suggests strategies that might mitigate against policy becoming hyperreal and concludes that government must carefully consider its motives for engaging in the borrowing process from the outset.

Revisited relativistic Dirac-Hartree-Fock X-ray scattering factors. II. Chemically relevant cations and selected monovalent anions for atoms with Z = 3-112.

The previously described approach for determination of the relativistic atomic X-ray scattering factors (XRSFs) at the Dirac-Hartree-Fock level [Olukayode et al. (2023). Acta Cryst. A79, 59-79] has been used to evaluate the XRSFs for a total of 318 species including all chemically relevant cations [Greenwood & Earnshaw (1997). Chemistry of the Elements], six monovalent anions (O-, F-, Cl-, Br-, I-, At-), the ns1np3 excited (valence) states of carbon and silicon, and several exotic cations (Db5+, Sg6+, Bh7+, Hs8+ and Cn2+) for which the chemical compounds have been recently identified, thus significantly extending the coverage relative to all the earlier studies. Unlike the data currently recommended by the International Union of Crystallography (IUCr) [Maslen et al. (2006). International Tables for Crystallography, Vol. C, Section 6.1.1, pp. 554-589], which originate from different levels of theory including the non-relativistic Hartree-Fock and correlated methods, as well as the relativistic Dirac-Slater calculations, the re-determined XRSFs come from a uniform treatment of all species within the same relativistic B-spline Dirac-Hartree-Fock approach [Zatsarinny & Froese Fischer (2016). Comput. Phys. Comm. 202, 287-303] that includes the Breit interaction correction and the Fermi nuclear charge density model. While it was not possible to compare the quality of the generated wavefunctions with that from the previous studies due to a lack (to the best of our knowledge) of such data in the literature, a careful comparison of the total electronic energies and the estimated atomic ionization energies with experimental and theoretical values from other studies instils confidence in the quality of the calculations. A combination of the B-spline approach and a fine radial grid allowed for a precise determination of the XRSFs for each species in the entire 0 ≤ sin θ/λ ≤ 6 Å-1 range, thus avoiding the necessity for extrapolation in the 2 ≤ sin θ/λ ≤ 6 Å-1 interval which, as was shown in the first study, may lead to inconsistencies. In contrast to the Rez et al. work [Acta Cryst. (1994), A50, 481-497], no additional approximations were introduced when calculating wavefunctions for the anions. The conventional and extended expansions were employed to produce interpolating functions for each species in both the 0 ≤ sin θ/λ ≤ 2 Å-1 and 2 ≤ sin θ/λ ≤ 6 Å-1 intervals, with the extended expansions offering a significantly better accuracy at a minimal computational overhead. The combined results of this and the previous study may be used to update the XRSFs for neutral atoms and ions listed in Vol. C of the 2006 edition of International Tables for Crystallography.

Tracing the regional dual value chains: Measurement on the production position and evidence from China

When there is insufficient internal and external impetus for developing countries’ economy, building a domestic and international dual circulation is conducive to promoting the regional industrial growth. On the basis of regional embedded international input-output tables, this paper extends the measurement framework of production position and proposes the concept of the dual value chain, which measure production position that unifies the national and global value chains from forward and backward industrial linkages. We decompose the national and global value chains into three categories and investigate the production position characteristics of China with a multi-dimensional perspective. Consistent evidence shows that a feasible path of technological progress in optimizing the production in value chains in which technological progress plays a crucial role on the pure national value chain across the high-tech manufacturing sector, the eastern and central regions. Their posterior probabilities are 0.96, 0.21and 0.86, respectively. Moreover, the impact on the dual production is nonnegligible that the posterior probability of technological progress on the eastern and central regions is 0.40 and 0.92. In addition, the impact of the Chinese economic stimulus program and technological progress on the economic crisis has a certain moderating effect. Our proposed evaluation framework sheds new light that national value chain production can boost economic growth，and further promote the coordinated of regional industries for developing countries.

Revisited relativistic Dirac-Hartree-Fock X-ray scattering factors. I. Neutral atoms with Z = 2-118.

In this first of a series of publications, the X-ray scattering factors for neutral atoms are revisited. Using the recently developed DBSR_HF program [Zatsarinny & Froese Fischer (2016). Comput. Phys. Comm. 202, 287-303] the fully relativistic Dirac-Hartree-Fock ground-state wavefunctions for all atoms with Z = 2-118 (He-Og) have been calculated using the extended average level scheme and including both the Breit interaction correction to the electronic motion due to magnetic and retardation effects, and the Fermi distribution function for the description of the nuclear charge density. The comparison of our wavefunctions with those obtained in several previous studies in terms of the total and orbital (spinor) electronic energies, and a number of local and integrated total and orbital properties, confirmed the quality of the generated wavefunctions. The employed dense radial grid combined with the DBSR_HF's B-spline representation of the relativistic one-electron orbitals allowed for a precise integration of the X-ray scattering factors using a newly developed Fortran program SF. Following the established procedure [Maslen et al. (2006). International Tables for Crystallography, Vol. C, Section 6.1.1, pp. 554-589], the resulting X-ray scattering factors have been interpolated in the 0 ≤ sin θ/λ ≤ 2 Å-1 and 2 ≤ sin θ/λ ≤ 6 Å-1 ranges using the recommended analytical functions with both the four- (which is a current convention) and five-term expansions. An exhaustive comparison of the newly generated X-ray scattering factors with the International Union of Crystallography recommended values and those from a number of previous studies showed an overall good agreement and allowed identification of a number of typos and inconsistencies in the recommended quantities. A detailed analysis of the results suggests that the newly derived values may represent an excellent compromise among all the previous studies. The determined conventional interpolating functions for the two sin θ/λ intervals show, on average, the same accuracy as the recommended parametrizations. However, an extension of each expansion by only a single term provides a significant improvement in the accuracy of the interpolated values for an overwhelming majority of the atoms. As such, an updated set of the fully relativistic X-ray scattering factors and the interpolating functions for neutral atoms with Z = 2-118 can be easily incorporated into the existing X-ray diffraction software with only minor modifications. The outcomes of the undertaken research should be of interest to members of the crystallographic community who push the boundaries of the accuracy and precision of X-ray diffraction studies.

Glycaemic index and glycaemic load of dairy based products, indigenous recipes and confectionery items of Pakistan

The glycaemic index (GI) and glycaemic load (GL) of different milk types and traditional dairy-based Pakistani products were determined. Fifty commonly consumed commercial and domestic dairy products were divided into milk variants, dairy products, fruit milk shakes, local beverages, desserts and traditional confections. Healthy participants after overnight fasting were served calculated (25 or 50 g carbohydrate) portions of glucose and bread (as reference) on three occasions, and subsequently the test foods containing equal amount of available carbohydrates. Forty-three foods were low GI, whereas, confectionery items with moderate available carbohydrate were categorised among medium and high GI foods. Milk, as main ingredient affected GI value of the whole recipe. Protein and fat content of test foods showed moderate negative association with GI. It can be concluded that local ingredients and traditional recipes of Pakistani dairy products are unique, resulting variation in composition, GI and GL in comparison with international GI tables.

Does environmental regulation enhance firm's position in dual value chain? An analysis based on environmental information disclosure

Climbing the dual value chain (DVC) of parallel development in global and domestic value chains is an important channel to get rid of bottom solidification. Based on the data of international input-output tables after embedding provinces and decomposing value-added flow during 2003–2012, this article provides measurement for downstream or upstream embedding and division position indexes of A-listed firms. Then, theoretical framework of environmental regulation affecting DVC embeddedness is constructed, and the Environmental Information Disclosure (EID) trial implemented in 2008 is regarded as a quasi-natural experiment. The results show that EID enhances corporate division position in DVC by weakening downstream embeddedness and increasing upstream embeddedness, domestic firms are gradually transforming from low-end manufacturers to high-end designers. The effect works with a year lag in downstream embeddedness and lags 2 years in others. Heterogeneity analysis confirms that enhancement of division position is more sensitive in resource-rich cities with high marketization or labor-intensive firms and manufacturing or service sectors. Besides, we find that environmental regulation such as EID induces technological innovation for process upgrade, product improvement for quality upgrade and allocation optimization for function upgrade to transform the role and degree of firms embedding DVC.

Methodology for adding glycemic index values to a Venezuelan food composition database

The allocation of glycemic index (GI) values to food composition databases is fundamental for epidemiological research and clinical practice. This study aimed to describe the methods to assign GI values to all included foods in the Venezuelan food composition table. A previous systematic 6-step method was used for the assignment to the 624 food items arranged in 14 food groups. The most recent international tables of GI were used as a primary source. 196 foods (31.4%) were assigned a GI value = 0 because they had less than 2.5 g of carbohydrates. A direct match was made in 135 foods (21.6%), while 136 food items (21.8%) had a closely related assignment. Additionally, 30 mixed food items (4.8%) were calculated following the standard recipe. 48 foods (7.7%) were assigned a pre-established GI value for the subgroup to which they belong, and 9 foods (1.5%) were assigned a pre-established value of 50 for being carbohydrate contributors, whereas 70 foods (11.2%) were assigned a value of GI = 0 because they were not considered significant sources of carbohydrates. The average GI for all the groups was 51.6 ± 14.6. ‘Tubers and roots’ was the group with the highest percentage of foods with a high GI (50%). We provide the resulting database with the addition of GI values to Venezuelan foods that would be of great interest to healthcare professionals, students, and researchers in the area.

Do glycemic index and glycemic load of diet contribute to early childhood caries in preschool children?

PurposeThe purpose of this study was to examine the potential association between the glycemic index (GI) and the glycemic load (GL) with early childhood caries in preschool children.Design/methodology/approachThis cross-sectional study collected data from 225 children aged 37–71 months in governmental nursery schools within the Altindag district of Ankara, Turkey. GI and GL values of foods and beverages were calculated using 2008 international tables of GI and GL. Dental examinations were done under daylight and by using a headlight. The prevalence of caries was obtained by calculating the number of the decayed, missing and filled teeth (dmft) index score or decayed, missing and filled surface (dmfs) index score.FindingsThere were significant differences in the dmft and dmfs scores according to GI groups (p = 0.022 for both). The multivariate models showed that children who consumed a high-GI diet had higher dmft scores compared to children who consumed a medium-GI diet (ß 1.48, 95% CI −1.48, 4.44), whereas children who consumed a high-GL diet had lower dmft score compared to children who consumed low-GL diet (ß 0.55, 95% CI −0.97, 2.07), however, they were not statistically significant.Originality/valueDietary total GI and GL did not significantly influence the caries experience of preschool children. Future studies should focus on the different age groups with a broader perspective.

Responsible Reading: Children’s Literature and Social Justice

In high accountability cultures, primary phase literacy education tends to focus on improving children’s test scores. Driven by each country’s performance in international league tables, this results in narrow, predominantly skills-based programmes designed to address attainment gaps. While scores may have been enhanced in recent years, there is little evidence that policy directives have positioned literacy in the lives of learners in ways that have become meaningful for them or been transferred into ways of thinking that promote social equity. Indeed, teaching practices that exacerbate the challenges for those young people who are already disadvantaged by circumstance have become more prevalent. Teachers, therefore, have an ethical responsibility to redress this through their teaching. This paper argues that literature is core to more equitable literacy development. As not all reading practices are equal, developing literacy education for a more socially just society needs to challenge the dominant pedagogic hegemony. Literature has the potential to spark the kind of mindful disruption necessary to shift standardised paradigms of thought, so literacy education should have children’s literature at its heart. By examining the value of literature through a set of complementary lenses, this paper seeks to reveal its affordances in young people’s lives. Then, through commentary taken from a pair of vignettes drawn from professional learning contexts, we illuminate shifts in teacher perception gained through scaffolded introduction to reading literary texts. The insights teachers gained reveal reconceptualisation of reading and the role of literature in primary education. This has the potential to redirect their future classroom practice. Consequently, we propose that for teachers to be adept at improving literacy outcomes through productive adoption and use of literary texts, they need: an aesthetic appreciation and knowledge of children’s literature; personal experience with reading such literature as social practice; and pedagogic insight into how to use literature to teach literacy and develop volitional readers. We call this knowledge set the additive trio, noting that no ‘step’ or understanding is sufficient on its own, and that together they can enable the development of Reading Teachers who work with literature to advance the social justice agenda.

Magnetic Properties in Mn-Doped δ-MoN: A Systematic Density Functional Theory Study.

Due to the potential applications of transition metal nitrides in modern electronic and spintronic devices, we have systematically studied the magnetic properties of δ-MoN induced by the Mn dopant, with the goal of identifying the origin of magnetism and figuring out the magnetic coupling mechanism between the Mn dopants. Based on the density functional theory, one Mn atom doped at different Mo sites (2a and 6c in the International Tables) in the unit cell of δ-MoN was firstly studied. It was found that the Mn dopant located at the 2a or 6c site leads to significant spin splitting of the density of states, suggesting that the Mn doping induces magnetism in δ-MoN. The calculations were then extended to a 2 × 1 × 2 supercell, which contains two impurity Mn atoms. Detailed analysis reveals that the different couplings of the Mn–Mn pair cannot be simply attributed to the different Mn–Mn distances but are closely related to the electronic processes that take place in the segment (–N– or –N–Mo–N–) that connects two Mn dopants. The mechanisms responsible for the FM/AFM coupling of the Mn–Mn pairs are the superexchange and the p–d exchange mediated by the N atoms, and the d–d coupling between the host Mo atom and the Mn dopant.

Social inequalities shape diet composition among urban Colombians: The Colombian Nutritional Profiles cross-sectional study.

To explore the influence of socioeconomic position on habitual dietary intake in Colombian cities. We conducted a cross-sectional, population-based study in five Colombian cities. Dietary intake was assessed with a 157-item semi-quantitative food frequency questionnaire previously developed for the Colombian population. Nutrient analysis was performed using national and international food composition tables. Socioeconomic position was assessed with two indicators: a government-defined, asset-based, household-level index called socioeconomic stratum (SES) and, among adults, highest educational level attained. The five main urban centers of Colombia: Bogotá, Medellin, Barranquilla, Cali and Bucaramanga. Probabilistic, multistage sample of 1865 participants (n=1491 for analyses on education). For both sexes, increasing SES was associated with a lower consumption of energy (p-trend <0.001 in both sexes), carbohydrates (p-trend ˂0.001 in both sexes), sodium (p-trend=0.005 in males, <0.001 in females), saturated fatty acids (p-trend <0.001 in both sexes) and among females, cholesterol (p-trend=0.002). More educated men consumed significantly less energy and carbohydrates (p-trend=0.036 and ˂0.001, respectively). Among men, intake of trans fats increased monotonically with educational level, being 21% higher among college graduates relative to those with only elementary education (p-trend=0.023). Among women, higher educational level was associated with higher MUFA intake (p-trend=0.027). SES and educational level are strong correlates of the usual diet of urban Colombians. Economically deprived and less educated segments of society display dietary habits that make them vulnerable to chronic diseases and should be the primary target of public health nutrition policies.

100 YEARS OF VITAMIN D: Dietary intake and main food sources of vitamin D and calcium in Colombian urban adults.

Data on dietary calcium and vitamin D intake from Latin America are scarce. We explored the main correlates and dietary sources of calcium and vitamin D in a probabilistic, population-based sample from Colombia. We studied 1554 participants aged 18–75 from five different geographical regions. Dietary intake was assessed by employing a 157-item semi-quantitative food frequency questionnaire and national and international food composition tables. Daily vitamin D intake decreased with increasing age, from 230 IU/day in the 18–39 age group to 184 IU/day in the 60–75 age group (P -trend < 0.001). Vitamin D intake was positively associated with socioeconomic status (SES) (196 IU/day in lowest vs 234 in highest SES, P-trend < 0.001), and with educational level (176 IU/day in lowest vs 226 in highest education level, P-trend < 0.001). Daily calcium intake also decreased with age, from 1376 mg/day in the 18–39 age group to 1120 mg/day in the 60–75 age group (P -trend < 0.001). Calcium intake was lowest among participants with only elementary education, but the absolute difference in calcium intake between extreme education categories was smaller than for vitamin D (1107 vs 1274 mg/day, P-trend = 0.023). Daily calcium intake did not correlate with SES (P -trend = 0.74). Eggs were the main source of overall vitamin D, albeit their contribution decreased with increasing age. Dairy products contributed at least 48% of dietary calcium in all subgroups, mostly from cheese-containing traditional foods. SES and education were the key correlates of vitamin D and calcium intake. These findings may contribute to shape public health interventions in Latin American countries.

Detecting the nation-based characteristics of industries in the global input-output network of networks

Under the influence of national policies, development plans, and subsidies, industries from the same nation perform similarly and inherit a part of their nations' characteristics. Unlike the one-layer input-output network that treats industries as isolated, our model treats industries from the same nation as a relative tight community. Thus, the characteristics of industries are inherited from their nation, which is defined as the nation-based characteristics. To accurately account for the nation-based contributions of each industry, we construct a global input-output NoN (network of networks) model. The global input-output NoN is transformed from the international input-output tables based on hypermatrices and the network of networks model. Based on the global input-output NoN, we propose six nation-based indexes to assess different aspects of industries' nation-based contributions. Our network model and nation-based indexes are applied on the international input-output tables from 2010 to 2015. We confirm the applicability of our model and discover several interesting findings. Overall, the most important one is that some nonmanufacturing industries (e.g., health, education, and public administration) may be more critical than some significant manufacturing industries.

Bourdieu’s Theory of Practice and the OECD PISA Global Competence Framework

Globalisation has become increasingly important in education, and national systems are no longer defined only by the nation-state. The role of intergovernmental organisations such as the OECD has also become increasingly important, particularly through the development of the PISA tests and the publication of international comparison tables. With a growing recognition of educating for an international and globalised future, the OECD assessed global competence for the first time in 2018, with results released in October 2020. The power that the OECD exerts over its member states, and indeed further, in the field of education through the global competence assessment demonstrates social reproduction. This article examines the OECD’s 2018 Global Competence Framework from a Bourdieusian perspective. An analysis is undertaken of the framework using Bourdieu’s thinking tools of habitus, field and capital, and the mechanisms of pedagogic authority, pedagogic action and pedagogic work, demonstrating an unconsciously agreed power differential between social groups. The OECD, as well as policy-makers at a national level, must consider such implications in anticipating future policy developments in order to enable systemic injustices to be overcome and educational equality to be achieved.

Space groups and crystallographic symmetry: writing a multi-featured tutorial in a new style.

Knowledge of space groups and the implications of space group symmetry on the physical and chemical properties of solids are pivotal factors in all areas of crystalline solids. As Jerry Jasinski and I met to bring our ideas in teaching this subject to life, we both felt that 'early and often' - teaching the concepts with textual and visual reinforcement, is the key to providing a sound basis for students in this subject. The tutorial contains > 200 PowerPoint 'slides', in five modules, arranged by crystal class; a sixth module covers special topics. A 'credits' module gives the direct addresses of all embedded links. Space-group diagrams appear in Inter-national Tables format. The triclinic and monoclinic groups (2+13) are built from 'scratch', and are derived from the Hermann-Mauguin symbol. An additional section provides practice on many (but not all) of the ortho-rhom-bic groups in crystal class 222. Finally, a 'Special Topics' section on enanti-omorphous space groups features space groups P41 and P43. In the tutorial, lattice points build iteratively and inter-actively via keyclick, and the coordinates of points 'pop up' as the unit cell is filled. We trust that the elements of guidance, inquiry and occasional humor will make the learning process enjoyable.