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An experimental investigation on the thermal augmentation of internal endwall in a two-pass duct using an array of delta-winglet vortex generator pair

The present study experimentally demonstrates a novel design for an internal endwall in a two-pass duct heat exchanger. An array of delta-winglet vortex generator pairs with different aspect ratio, angle of attack, configuration are mounted on the internal endwall in a U duct. Liquid crystal thermalgraphy and static pressure measurements are utilized in this study to evaluate the heat transfer, th

Flame characteristics of methane/air with hydrogen addition in the micro confined combustion space

This paper investigated methane/air flame characteristics with hydrogen addition in micro confined combustion space experimentally and computationally. The focus is on the effect of hydrogen addition on the methane/air flame stabilization, the onset of flame with repetitive extinction and ignition (FREI), and the global flame quenching in decreasing continuously combustion space. Furthermore, the

Novel risk factors associated with common vaginal infections : a nationwide primary health care cohort study: Novel risk factors for vaginal infections

Objective: This study aimed to estimate the association between potential risk factors and common vaginal infections using nationwide primary health care and other national registers. Methods: An open cohort study consisting of 2,357,711 women aged 15 years to 50 years (2001 to 2018) was conducted in Sweden. The outcomes were first event of vulvovaginal candidiasis (VVC) and bacterial vaginosis (B

Russian and Turkish Migration Regimes in a Comparative Perspective

Global political developments, economic growth and trade liberalization since the 1980s have changed the political and economic landscapes of most regions in the world. First, the collapse of the Soviet Union (and the communist regimes in Central and Eastern Europe) lead to the movement of large segments of populations. For example, the dissolution of the Soviet Union alone left tens of millions o

Unravelling the deformation process of a compacted paper : in-situ tensile loading, 4D X-ray tomography and image-based analysis

Paper of high extensibility has regained attention due to the recent increase in interest of 3D paper forming for packaging. In-plane compaction has been reported as an effective process to improve paper extensibility. Though tension of compacted paper is generally considered as a reversal process of shrinkage, the exact mechanism involved has not been fully studied. This study investigated the me

The finitely generated Hausdorff spectra of a family of pro-p groups

Recently the first example of a family of pro-p groups, for p a prime, with full normal Hausdorff spectrum was constructed. In this paper we further investigate this family by computing their finitely generated Hausdorff spectrum with respect to each of the five standard filtration series: the p-power series, the iterated p-power series, the lower p-series, the Frattini series and the dimension su

Documentation and Legalization Arenas in Moscow and Istanbul

During our ethnographic fieldwork in Istanbul—in the Kumkapi neighborhood where the majority of Uzbek migrant workers reside and work—we encountered many Uzbek migrants who were compelled to reroute their migration destination from Russia to Turkey following the introduction of the entry ban legislation in Russia in 2013 and 2014. Since that ban, Turkey has become a popular destination since Uzbek

Migrant Labor Markets in Russia and Turkey

During our ethnographic fieldwork in Istanbul, we spent most of our time wandering the streets of the Kumkapi neighborhood, where it is possible to spot hundreds of Uzbek migrants who reside and/or work there.

Life cycle assessment of the production of beet sugar and its by-products

This work presents estimates of the emissions resulting from the production of white sugar and its by-products (molasses, pressed beet pulp and dried beet pulp) from sugar beet cultivation to the final product at the factory gate. The study covers the impact of global warming potential, eutrophication potential (freshwater and marine) and particulate matter. The analysis was based on detailed prim

The Shadow Economy and the Street World as a Migration Arena

According to the 2021 Rule of Law Index, one of the leading global indicators on the rule of law published annually by the World Justice Project, Russia and Turkey ranked 101st and 117th, respectively, among 139 countries (WJP. Rule of Law Index 2021 [online]. https://worldjusticeproject.org/our-work/research-and-data/wjp-rule-law-index-2021, 2021). The low positions of these two countries in the

Dark confinement and chiral phase transitions : gravitational waves vs matter representations

We study the gravitational-wave signal stemming from strongly coupled models featuring both, dark chiral and confinement phase transitions. We therefore identify strongly coupled theories that can feature a first-order phase transition. Employing the Polyakov-Nambu-Jona-Lasinio model, we focus our attention on SU(3) Yang-Mills theories featuring fermions in fundamental, adjoint, and two-index symm

Can Norway become a net-zero economy under scenarios of tourism growth?

The Paris Agreement suggests that all countries engage in significant emission reductions. To stay within safe guardrails, usually defined as a maximum warming of 1.5 °C compared to pre-industrial times, this will mean decarbonisation within less than 30 years. This significant challenge is complicated because of growth in some sectors, such as tourism. This paper analyses emissions and economic o

Alternative translation and retrotranslocation of cytosolic C3 that detects cytoinvasive bacteria

Complement C3 was originally regarded as a serum effector protein, although recent data has emerged suggesting that intracellular C3 can also regulate basic cellular processes. Despite the growing interest in intracellular C3 functions, the mechanism behind its generation has not been demonstrated. In this study we show that C3 can be expressed from an alternative translational start site, resulti

Estimation of contractile parameters of successive twitches in unfused tetanic contractions of single motor units – A proof-of-concept study using ultrafast ultrasound imaging in vivo

During a voluntary contraction, motor units (MUs) fire a train of action potentials, causing summation of the twitch forces, resulting in fused or unfused tetanus. Twitches have been important in studying whole-muscle contractile properties and differentiation between MU types. However, there are still knowledge gaps concerning the voluntary force generation mechanisms. Current methods rely on the

Is walking or riding your bike when a tourist different? Applying VAB theory to better understand active transport behavior

Active transport (walking and biking) has significant environmental, health, and social benefits. Despite the importance of active transport, theoretically framed research has not sufficiently considered what makes consumers walk or bike based on activity types, particularly in an Asian context. This is an important topic as it helps provides a basis for better targeted marketing and promotion to

The normality assumption in coordination games with flexible information acquisition

Many economic models assume that random variables follow normal (Gaussian) distributions. Yet, real-world variables may be non-normally distributed. How sensitive are these models' predictions to distribution misspecifications? This paper addresses the question in the context of linear-quadratic beauty contests played by rationally inattentive players. It breaks with the assumption that the (commo

A comparative study of the fatty acid profile of common fruits and fruits claimed to confer health benefits

This study aims to verify the nutritional value of the fatty acid (FA) profile of three fruits claimed to confer health benefits (goji berry, white mulberry, and cranberry), often referred to as “superfruits”, over three common fruits (banana, apple, and strawberry). Nineteen different FAs, ranging in concentrations between 0.018 and 9.4 mg/g dry sample were detected. Levels of very long-chained F