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Heat transfer performance and friction factor of various nanofluids in a double-tube counter flow heat exchanger

Experimental research was conducted to reveal the effects of nanofluids on heat transfer performance in a double-tube heat exchanger. With nanoparticle weight fraction of 0.5-2.0% and Reynolds number of 4500-14500, the flow resistance and heat transfer were analyzed by using six nanofluids, i.e., CuO-water, Al2O3-water, Fe3O4-water, ZnO-water, SiC-water, SiO2-water nanofluids. Results show that Si

Massive MIMO goes Sub-GHz : Implementation and Experimental Exploration for LPWANs

Low-Power Wide-Area Networks operating in the unlicensed bands are being deployed to connect a rapidly growing number of Internet-of-Things devices. While the unlicensed sub-GHz band offers favorable propagation for long-range connections, measurements show that the energy consumption of the nodes is still mostly dominated by the wireless transmission affecting their autonomy. We investigate the p

A multicentre validation study of the diagnostic value of plasma neurofilament light

Increased cerebrospinal fluid neurofilament light (NfL) is a recognized biomarker for neurodegeneration that can also be assessed in blood. Here, we investigate plasma NfL as a marker of neurodegeneration in 13 neurodegenerative disorders, Down syndrome, depression and cognitively unimpaired controls from two multicenter cohorts: King's College London (n = 805) and the Swedish BioFINDER study (n =

Portuguese version of the PTSD Checklist-Military Version (PCL-M)-I : Confirmatory Factor Analysis and reliability

The PTSD Checklist-Military Version (PCL-M) is a brief self-report instrument widely used to assess Post-traumatic Stress Disorder (PTSD) symptomatology in war Veterans, according to DSM- IV. This study sought out to explore the factor structure and reliability of the Portuguese version of the PCL-M. A sample of 660 Portuguese Colonial War Veterans completed the PCL-M. Several Confirmatory Factor

A Wide Metallicity Range for Gyr-old Stars in the Nuclear Star Cluster

We report metallicities for three ∼Gyr-old stars in the Milky Way nuclear star cluster (NSC) using high-resolution near-infrared spectroscopy. We derive effective temperatures from a calibration with Sc line strength, which yields results in good agreement with other methods, and metallicities from spectral fits to Fe i lines. Our derived metallicities range from −1.2 < [Fe/H] < + 0.5, a span of 1

Data-driven modelling of hydraulic-head time series : results and lessons learned from the 2022 Groundwater Time Series Modelling Challenge

This paper presents the results of the 2022 Groundwater Time Series Modelling Challenge, where 15 teams from different institutes applied various data-driven models to simulate hydraulic-head time series at four monitoring wells. Three of the wells were located in Europe and one was located in the USA in different hydrogeological settings in temperate, continental, or subarctic climates. Participa

The 2022 PSOGI International Consensus on HIPEC Regimens for Peritoneal Malignancies : HIPEC Technologies

This manuscript reports the results of an international consensus on technologies of hyperthermic intraperitoneal perioperative chemotherapy (HIPEC) performed with the following goals: To provide recommendations for the technological parameters to perform HIPEC. To identify the role of heat and its application forms in treating peritoneal metastases. To provide recommendations regarding the correc

George Montandon, the Ainu and the Theory of Hologenesis

In 1909, Italian zoologist Daniele Rosa proposed a radical new evolutionary theory: hologenesis, or simultaneous, pan-terrestrial creation and evolution driven primarily by internal factors. Hologenesis was widely ignored or rejected outside Italy, but Swiss-French anthropologist George Montandon eagerly embraced and developed the theory. An ambitious careerist, Montandon’s deep investment in an o

Measurement of the tt¯Z and tt¯W cross sections in proton-proton collisions at s=13 TeV with the ATLAS detector

A measurement of the associated production of a top-quark pair (tt) with a vector boson (W, Z) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented, using 36.1 fb-1 of integrated luminosity collected by the ATLAS detector at the Large Hadron Collider. Events are selected in channels with two same- or opposite-sign leptons (electrons or muons), three leptons or four leptons

Understanding sport expertise through a motivational perspective

The present study investigated sport expertise development and maintenance throng the framework of self-determination theory (SDT). In-depth semi-structured interviews were conducted with ten elite athletes who had represented their respective nations in major international events. Data were analyzed deductively according to the principles of SDT. Results indicated that sport expertise development

Narrative and discursive approaches in entrepreneurship : A second movements in entrepreneurship book

'Daniel Hjorth and Chris Steyaert set out to advance the study of entrepreneurship by refocusing the lens of discovery from economics, management and marketing to other paradigmatic stances in social sciences and humanities like anthropology and literary studies. The result is a provocative collection of chapters that inspire the reader to consider and explore new ideas and research practice that

Mapping the path to a decarbonised agri-food products : A hybrid geographic information system and life cycle inventory methodology for assessing sustainable agriculture

The development of a decarbonised food industry will depend on a sustainable agricultural system where embodied food product greenhouse gas emissions (GHG) can be associated with agricultural production. The results presented demonstrate how physically mapping agri-production provides regional carbon footprints so practice that reduces GHG emissions become strategic rather than random. Different a

Getting to Know Editors and Authors: The Humans Behind the Screen

Fourteen guests from all over Europe and editors of Chemistry Europe journals met for two days to discuss trends and challenges in publishing and to get to know each other during networking breaks and a social evening. The third Chemistry Europe Early Career Researchers Meeting was held on invitation by the Chemistry Europe societies at the Wiley-VCH offices in Weinheim, Germany. It was a great su

A Type-II Phase-Tracking Receiver

We present a new analog-to-digital converter (ADC)-based architecture of a phase-tracking receiver (PT-RX) optimized for ultra-low-power (ULP) and ultra-low-voltage (ULV) operations for the Internet of Things (IoT). The RX employs a type-II loop configuration that offers improved stability compared with the previous type-I PT-RX solutions. In addition, the type-II loop is also very tolerant of lon

Learn to relax : Integrating 0-1 integer linear programming with pseudo-Boolean conflict-driven search

Conflict-driven pseudo-Boolean solvers optimize 0-1 integer linear programs by extending the conflict-driven clause learning (CDCL) paradigm from SAT solving. Though pseudo-Boolean solvers have the potential to be exponentially more efficient than CDCL solvers in theory, in practice they can sometimes get hopelessly stuck even when the linear programming (LP) relaxation is infeasible over the real

Hayek, welfarism, and the deserving poor

Hayek sees poverty in its absolute sense as a factual problem, which the society has an obligation to deal with. Relative poverty, on the other hand, is not a problem with which the state should be concerned. Hayek approves the use of redistribution to decrease absolute poverty. However, redistribution of income for the sake of greater material equality would necessarily imply unequal treatment of