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Ultra-processed food (UPF) intake is associated with increased non-communicable disease risks. However, systematic reports on sociodemographic predictors of UPF intake are lacking. This review aimed to understand UPF consumption based on sociodemographic factors, using nationally representative cohorts. The systematic review was pre-registered (PROSPERO:CRD42022360199), following PRISMA guidelines. PubMed/MEDLINE searches (‘ultra-processed/ultraprocessed’ and ‘ultra-processing/ultraprocessing’) until 7 September 2022 retrieved 1131 results. Inclusion criteria included: observational, nationally representative adult samples, in English, in peer-reviewed journals, assessing the association between sociodemographics and individual-level UPF intake defined by the NOVA classification. Exclusion criteria included: not nationally representative, no assessment of sociodemographics and individual-level UPF intake defined by NOVA. Risk of bias was assessed using the Newcastle–Ottawa Scale (NOS). Fifty-five papers were included, spanning thirty-two countries. All thirteen sociodemographic variables identified were significantly associated with UPF intake in one or more studies. Significant differences in UPF intake were seen across age, race/ethnicity, rural/urbanisation, food insecurity, income and region, with up to 10–20% differences in UPF intake (% total energy). Higher UPF intakes were associated with younger age, urbanisation and being unmarried, single, separated or divorced. Education, income and socioeconomic status showed varying associations, depending on country. Multivariate analyses indicated that associations were independent of other sociodemographics. Household status and gender were generally not associated with UPF intake. NOS averaged 5·7/10. Several characteristics are independently associated with high UPF intake, indicating large sociodemographic variation in non-communicable disease risk. These findings highlight significant public health inequalities associated with UPF intake, and the urgent need for policy action to minimise social injustice-related health inequalities.
This paper investigates the evolution of gender equality in Sweden during a phase characterized by industrialization, urbanization, and demographic transition. To this end, we build a database with quantitative indicators to construct a spatial Historical Gender Gap Index. We find that after a period of stagnation, Sweden made significant progress in closing the gender gap from the 1940s onward to reach the high level of gender equality that it is now famous for. The empirical exploration of the relationship between gender equality and economic development reveals that regions displaying higher gender equality performed economically better than less gender-equal regions.
Hundreds of thousands of conferences have taken place since their first appearance in the late eighteenth century, yet the history of science has often treated them as stages for scientific practice, not as the play itself. Drawing on recent work in the history of science and of international relations, the introduction to this special issue suggests avenues for exploring the phenomenon of the international scientific conference, broadly construed, by highlighting the connected dimensions of communication, sociability and international relations. It lays out a typology of scientific conferences as a way of gaining an overview of their diversity in the nineteenth and twentieth centuries. It argues that the international scientific conference is a central locus for understanding science as a social, cultural and political practice.
Comment soutenir le déploiement de connaissances coconstruites par des personnes cliniciennes, gestionnaires ou chercheures? Ce thème est abordé à partir de l’étude de l’application de l’Algo, un algorithme clinique décisionnel conçu pour la sélection des aides techniques visant à faciliter l’hygiène corporelle des personnes aînées vivant à domicile. L’objectif de cette note sur les politiques et les pratiques est de présenter les orientations de facilitation dégagées à la suite d’un devis mixte multiphases (2015–2019) mis en œuvre dans les services de soutien à domicile au Québec (Canada). Les orientations de facilitation centrée sur la tâche et holistique sont présentées en fonction des stades d’utilisation de l’Algo, afin de soutenir les personnes cliniciennes, gestionnaires et chercheures dans la poursuite de son application auprès des personnes aînées. De plus, cette note illustre l’apport des devis mixtes à la conduite et à la compréhension de l’application des connaissances coconstruites.
In this paper we prove that from large cardinals it is consistent that there is a singular strong limit cardinal $\nu $ such that the singular cardinal hypothesis fails at $\nu $ and every collection of fewer than $\operatorname {\mathrm {cf}}(\nu )$ stationary subsets of $\nu ^{+}$ reflects simultaneously. For $\operatorname {\mathrm {cf}}(\nu )> \omega $, this situation was not previously known to be consistent. Using different methods, we reduce the upper bound on the consistency strength of this situation for $\operatorname {\mathrm {cf}}(\nu ) = \omega $ to below a single partially supercompact cardinal. The previous upper bound of infinitely many supercompact cardinals was due to Sharon.
This article explores the influence of worker resistance to Taylorism on industrial relations in Sweden. By analysing archival material from workers at the Separator Corporate Group, the Metal Workers’ Union, and the Swedish Trade Union Confederation, this article highlights the interplay between shop floor activism, discussions within trade unions, and central labour market relations. It demonstrates how rank-and-file activism compelled union leadership and the central labour market organizations to adopt a series of agreements in the 1940s aimed at addressing worker resistance to Taylorism.
Despite worker discontent, scientific management spread during the 1930s and 1940s. This eventually contributed to the Metal Strike of 1945, which had significant impact on labour–capital relations. According to the metal workers, scientific management, particularly time-motion studies, reduced their bargaining power by concealing labour processes and methods for wage determination, thereby allowing management a monopoly on knowledge.
Following the strike, negotiations between the Trade Union Confederation and the Swedish Employers’ Association resulted in the 1948 Work Studies Agreement. This agreement provided a platform for resolving conflicts and encouraging workers’ support of rationalization via the Work Studies Council. Worker resistance consequently drove Swedish labour market centralization, inadvertently promoting closer labour–capital cooperation.
This article argues, among other things, that although worker resistance failed to upend scientific management, it resulted in it being regulated within a corporatist framework. This highlights the important historical role local trade union activism has played in shaping labour market institutions and the broader political economy.
In this paper, we derive new differential Harnack estimates of Li–Yau type for positive smooth solutions to a class of nonlinear parabolic equations in the form
on smooth metric measure spaces where the metric and potential are time dependent and evolve under a $({\mathsf k},\, m)$-super Perelman–Ricci flow. A number of consequences, most notably, a parabolic Harnack inequality, a class of Hamilton type global curvature-free estimates and a general Liouville type theorem together with some consequences are established. Some special cases are presented to illustrate the strength of the results.
This paper introduces type P web supercategories. They are defined as diagrammatic monoidal ${\mathbb {k}}$-linear supercategories via generators and relations. We study the structure of these categories and provide diagrammatic bases for their morphism spaces. We also prove these supercategories provide combinatorial models for the monoidal supercategory generated by the symmetric powers of the natural module and their duals for the Lie superalgebra of type P.
الملح في موريتانيا القيصرية و نوميديا. مصادره؟ استخداماته؟
تواتية عمراوي
هذا هو الملخص الأول للمناطق الوسطى من المغرب العربي (الجزائر) و الذي يظهر الدور الرئيسي الذي لعبه الملح محلياً و كجزء من شبكات تجارية أوسع، و على مدى فترة طويلة من الزمن . اعتمدت هذه الدراسة على مصادر قديمة وحديثة - جغرافية ومعدنية و إثنوغرافية - و تستخدم البيانات الأثرية التي أهمل تحليلها في السابق عن استغلال الملح واستخداماته في العصور القديمة في كل من موريتانيا القيصرية و نوميديا. إن إعادة التقييم هذه تكشف عن مدى توفر الموارد المحلية: حيث كان الملح وفيراً، ويمكن الوصول إليه بسهولة، و يسهل حصاده من البحيرات المالحة أو صخور الملح .
إن البقايا الأثرية التي يتم العثور عليها و بشكل منهجي بالقرب من مكامن الملح الموجودة داخل منطقة المقاطعة الرومانية أو على أطرافها، تؤكد أن السكان استخدموا هذه الموارد المحلية لاحتياجاتهم اليومية. وتظهر الدراسات الإثنوغرافية أن السكان أو القبائل العابرة كانوا - ولا يزالون - قادرين على الاستفادة من الملح المحلي كجزء من تجارتهم مع الشمال والجنوب . تشير أدلة العصور الوسطى إلى أن الملح الصخري من جبل ملح الوطاية (بسكرة) والملح من سبخة آرزيو كان يتم تصديرهما عن طريق البر و من ثم البحر، حيث يصدر الأول لتونس و الثاني لدول أوروبية مجاورة، ولا يوجد ما يتعارض مع حقيقة أن هذا النوع من الشبكات وغيرها كانت موجود بالفعل في العصور القديمة.
This article investigates the utility of a chaîne opératoire approach centered on technologies of ceramic production for identifying Inca mitmaqkuna archaeologically. Although early documents suggest that the Inca program of resettlement (mitmaq) was massive in scale, archaeologists have had minimal success in identifying such relocated populations. Here we test a novel approach that focuses on technologies of production and associated tool assemblages used within different communities of practice. Previous studies indicate that the ethnic Cañari of southern Ecuador used a distinctive method of pottery manufacture involving a specific chaîne opératoire and a unique set of production-related tools. According to early sources, the Inca deported Cañari peoples to various sectors of Tawantinsuyu. In this article, we investigate the contemporary manufacturing style of ceramics from the Ancash region of north-central Peru—an area where Cañari mitmaqkuna were purportedly resettled—to determine whether distinctive communities of practice potentially representing relocated communities might be visible. The results of this study suggest that it is possible to identify connections among distant communities of practice via a focus on craft production technologies that, in certain historical contexts, may be construed as evidence for the presence of resettled populations.
We view innovation investments as real options and explore the implications of risk (volatility) as well as a newly defined outcome independent measure of ambiguity (Knightian uncertainty) for innovation decisions. The empirical analysis uses stock returns to compute an implementable measure of ambiguity. We also control for risk and other determinants of innovation. We find a consistently significant negative effect of ambiguity on R&D, patents, and citations, as predicted. The effect of risk on R&D is positive and significant, but the corresponding effect on patents and citations is negative and significant. Ambiguity matters more for high-tech firms, consistent with intuition.
The first long-lived turbulent structures observable in planar shear flows take the form of localized stripes, inclined with respect to the mean flow direction. The dynamics of these stripes is central to transition, and recent studies proposed an analogy to directed percolation where the stripes’ proliferation is ultimately responsible for the turbulence becoming sustained. In the present study we focus on the internal stripe dynamics as well as on the eventual stripe expansion, and we compare the underlying mechanisms in pressure- and shear-driven planar flows, respectively, plane-Poiseuille and plane-Couette flow. Despite the similarities of the overall laminar–turbulence patterns, the stripe proliferation processes in the two cases are fundamentally different. Starting from the growth and sustenance of individual stripes, we find that in plane-Couette flow new streaks are created stochastically throughout the stripe whereas in plane-Poiseuille flow streak creation is deterministic and occurs locally at the downstream tip. Because of the up/downstream symmetry, Couette stripes, in contrast to Poiseuille stripes, have two weak and two strong laminar turbulent interfaces. These differences in symmetry as well as in internal growth give rise to two fundamentally different stripe splitting mechanisms. In plane-Poiseuille flow splitting is connected to the elongational growth of the original stripe, and it results from a break-off/shedding of the stripe's tail. In plane-Couette flow splitting follows from a broadening of the original stripe and a division along the stripe into two slimmer stripes.
For any positive integers $k_1,k_2$ and any set $A\subseteq \mathbb {N}$, let $R_{k_1,k_2}(A,n)$ be the number of solutions of the equation $n=k_1a_1+k_2a_2$ with $a_1,a_2\in A$. Let g be a fixed integer. We prove that if $k_1$ and $k_2$ are two integers with $2\le k_1<k_2$ and $(k_1,k_2)=1$, then there does not exist any set $A\subseteq \mathbb {N}$ such that $R_{k_1,k_2}(A,n)-R_{k_1,k_2}(\mathbb {N}\setminus A,n)=g$ for all sufficiently large integers n, and if $1=k_1<k_2$, then there exists a set A such that $R_{k_1,k_2}(A,n)-R_{k_1,k_2}(\mathbb {N}\setminus A,n)=1$ for all positive integers n.
This review will provide an overview of the immune system and then describe the effects of frailty, obesity, specific micronutrients and the gut microbiota on immunity and susceptibility to infection including data from the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic where relevant. A key role for the immune system is providing host defence against pathogens. Impaired immunity predisposes to infections and to more severe infections and weakens the response to vaccination. A range of nutrients, including many micronutrients, play important roles in supporting the immune system to function. The immune system can decline in later life and this is exaggerated by frailty. The immune system is also weakened with obesity, generalised undernutrition and micronutrient deficiencies, which all result in increased susceptibility to infection. Findings obtained during the SARS-CoV-2 pandemic support what was already known about the effects of ageing, frailty and obesity on immunity and susceptibility to infection. Observational studies conducted during the pandemic also support previous findings that multiple micronutrients including vitamins C, D and E, zinc and selenium and long-chain n-3 fatty acids are important for immune health, but whether these nutrients can be used to treat those already with coronavirus disease discovered in 2019 (COVID-19), particularly if already hospitalised, is uncertain from current inconsistent or scant evidence. There is gut dysbiosis in patients with COVID-19 and studies with probiotics report clinical improvements in such patients. There is an inverse association between adherence to a healthy diet and risk of SARS-CoV-2 infection and hospitalisation with COVID-19 which is consistent with the effects of individual nutrients and other dietary components. Addressing frailty, obesity and micronutrient insufficiency will be important to reduce the burden of future pandemics and nutritional considerations need to be a central part of the approach to preventing infections, optimising vaccine responses and promoting recovery from infection.