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We consider the pebble game on DAGs with bounded fan-in introduced in [Paterson and Hewitt '70] and the reversible version of this game in [Bennett '89], and study the question of how hard it is to decide exactly or approximately the number of pebbles needed for a given DAG in these games. We prove that the problem of deciding whether s pebbles suffice to reversibly pebble a DAG G is PSPACE-comple
Background: Fine roots and their symbionts are the key drivers of processes such as nutrient cycling and belowground productivity. Their function depends on position in a branching hierarchy, with absorptive roots (responsible for resource acquisition), and transport roots. Aim: We examined how the different diameter cutoffs for root classification mirror concentrations of 11 different nutrients,
Criminology is not just focused on explaining the etiological factors behind crime commission; ultimately the goal is to find and empirically assess policies to control it. A criminology of the State is no different. Over the course of the past two decades, a growing number of scholars of State crime have devoted attention to and research on the issues of controls, yet, there have been relatively
A number of virtual reality head-mounted displays (HMDs) with integrated eye trackers have recently become commercially available. If their eye tracking latency is low and reliable enough for gaze-contingent rendering, this may open up many interesting opportunities for researchers. We measured eye tracking latencies for the Fove-0, the Varjo VR-1, and the High Tech Computer Corporation (HTC) Vive
BACKGROUND AND AIMS: Capsule endoscopy (CE) has revolutionized small-bowel (SB) investigation. Computational methods can enhance diagnostic yield (DY); however, incorporating machine learning algorithms (MLAs) into CE reading is difficult as large amounts of image annotations are required for training. Current databases lack graphic annotations of pathologies and cannot be used. A novel database,
In this paper, we look at the terrain of Malcolm X's "failed rhetoric" as producing an apocalyptic refusal of world, and world making. This refusal finds its intensity from a distinct gnostic calculus, driving Malcolm X's political theology of names and worlds, seen in his oratory from the years 1962–1964. First, Malcolm X's nominal history is discussed in relation to the violence of naming and po
Partially premixed combustion (PPC) is a promising way to achieve high thermal efficiency and low emissions, especially by using multiple injection strategies. The mechanisms behind PPC efficiency are still to be explained and explored. In this paper, multiple injections have been used to affect the gross indicated efficiency in an optical PPC engine modified from a Volvo MD13 heavy-duty diesel en
Background: The ongoing pandemic is having a collateral health effect on delivery of surgical care to millions of patients. Very little is known about pandemic management and effects on other services, including delivery of surgery. Methods: This was a scoping review of all available literature pertaining to COVID-19 and surgery, using electronic databases, society websites, webinars and preprint
Pheromones are environmentally friendly alternatives to traditional pesticides for pest control. They are widely applied for insect monitoring, mating disruption and mass trapping. Nicotiana benthamiana and N. tabacum are potential green biomass production platforms of moth sex pheromones. Using these two Nicotiana species as plant factories, we expressed biosynthetic genes of plant and insect ori
In this paper, a novel combined cooling, heating and power (CCHP) system consisting of a supercritical carbon dioxide (sCO2) power cycle, a transcritical carbon dioxide (tCO2) power cycle with a carbon dioxide based refrigeration cycle, and a direct heating (DH) system is proposed. In the novel system, the waste heat from sCO2 power cycle is recovered by the tCO2 power cycle to generate additional
PURPOSE: Photoacoustic (PA) imaging has the potential to become a non-invasive diagnostic tool for giant cell arteritis, as shown in pilot experiments on seven patients undergoing surgery. Here, we present a detailed evaluation of the safety regarding visual function and patient tolerability in healthy subjects, and define the spectral signature in the healthy temporal artery.METHODS: Photoacousti
Climate change has the potential to alter hydrological regimes and to expand saturated areas in permafrost environments, which are important sources of organic carbon. The sources, transfer zones, and delivery mechanisms of carbon into the stream network are controlled by the morphometric properties of the catchment; however, the utility and limitations of these properties as predictors of dissolv
Fully-synchronous measurements of a massive multi-user multiple-input multiple-output (MU-MIMO) radio propagation channel are presented. We evaluate the ability of a massive MIMO system to spatially separate users located close to each other in line-of-sight (LOS) propagation conditions. The system consists of a base-station (BS) antenna array equipped with 64 dual-polarized antenna elements (128
Call the Dependence Thesis the popular view that values are dependent on emotions. This paper argues that the Dependence Thesis is amenable to different readings and critiques one particular reading. According to the Definitional Dependence Thesis, definitions of evaluative concepts necessarily have to appeal to emotions. By contrast, according to the Epistemic Dependence Thesis, which is the targ
18 November 2021, 9:30–12:30. Location: Red Room Narrating Climate Futures, Wooloo / Human Hotel (Martin Rosengaard & Sixten Kai Nielsen), Anne Beate Hovind (Future Library Trust), Shannon JacksonNarrating Climate Futures and IAC welcome you to a seminar that brings together artists and researchers engaged in climate-related topics from many different disciplines. They all pose radical questions c
https://www.iac.lu.se/how-do-we-engage-our-climate-futures - 2026-07-21
Page 1 University Admissions in Sweden FE 20102 839 87 Östersund Sweden . Notification of Selection Results International Master Programmes Autumn Semester 2016 2016-03-29 Application no. Personal code no. 8610537 19860214-T387 NATALIA LOPEZ NO. 2-3, LANE 66, ZHULIN ROAD, YONGHE 234 NEW TAIPEI CITY TAIWAN Notification of Selection Results for the autumn semester 2016 This is your admissions notifi
https://www.luaccommodation.lu.se/sites/luaccommodation.lu.se/files/masterht16-application_0.pdf - 2026-07-23
