In this letter, a recently conducted measurement campaign in two suburban scenarios for investigating the low-height air-to-ground channels is presented. A universal-software-radio-peripheral-based channel sounder on-board an unmanned aerial vehicle (UAV) was exploited to record the real-time downlink signals of the live Long Term Evolution networks. Several horizontal flights at different heights

In this contribution, a recently conducted measurement campaign for indoor millimeter-wave (mm-wave) propagation channels is introduced. A vector network analyzer (VNA)-based channel sounder was exploited to record the channel characteristics at the frequency band from 28-30 GHz. A virtual uniform circular array (UCA) with a radius of 0.25 m was formed using a rotator with 360 steps. Moreover, by

This working paper offers an international legal perspective on the diverse and conflicting international reactions in response to Kosovo’s Declaration of Independence on 17 February 2008. Considering the failure of the UN Security Council in conjuring up a common position, whether a condemnation or approval of Kosovo’s desire to become an independent and sovereign member of the international comm

The presentation is focused on the representations of stop consonants in Anatolian (Hittite and Luwian) loans in Ugaritic, and what these representations can teach us about early Anatolian and Indo-European phonology; lately, Northwest Semitic consonantal reflexes in such loans have been an important area for discussion given the many uncertain-ties of the actual realization of Anatolian stops and

BackgroundThe rise in antibiotic resistance is a global public health concern, and antibiotic overuse needs to be reduced. Earlier studies of out-of-hours care have indicated that antibiotic prescribing is less appropriate than that of in-hours care. However, no study has compared the out-of-hours treatment of infections to in-hours treatment within the same population.MethodsThis retrospective, d

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OBJECTIVE: To compare consultations carried out via video with those performed in person for patients with painful, hard-to-heal ulcers, with a focus on ulcer pain and pain treatment. A further aim was to investigate predictors for pain and pain treatment.METHOD: This was a register-based, quasi-experimental study based on data from the Swedish Registry of Ulcer Treatment (RUT). A total of 100 pat

Automation to benefit or ruin?The purpose of this article is to discuss and analyze how digital automation of the provision of social assistance affects the practice of social work, as part of welfare. Based on interviews with supervisors/project managers and social case workers, who work with social assistance in a strategic selection of municipalities, the opportunities and challenges that robot

To comprehend the most detrimental characteristics behind bone fractures, it is key to understand the material and tissue level strain limits and their relation to failure sites. The aim of this study was to investigate the three-dimensional strain distribution and its evolution during loading at the sub-trabecular level in trabecular bone tissue. Human cadaver trabecular bone samples were compres

Introduction: Many donor organs contain significant leukocyte reservoirs which upon transplantation activate recipient leukocytes to initiate acute rejection. We aimed to assess whether non-ischemic heart preservation via ex vivo perfusion promotes immunodepletion and alters the inflammatory status of the donor organ prior to transplantation. Methods: Isolated porcine hearts underwent ex vivo hypo

Recent studies of the Central Complex in the brain of the fruit fly have identified neurons with activity that tracks the animal’s heading direction. These neurons are part of a neuronal circuit with dynamics resembling those of a ring attractor. The homologous circuit in other insects has similar topographic structure but with significant structural and connectivity differences. We model the conn

We study the limit behaviour of a class of random walk models taking values in the standard d-dimensional simplex. From an interior point z, the process chooses one of the vertices of the simplex, with probabilities depending on z, and then the particle randomly jumps to a new location z′ on the segment connecting z to the chosen vertex. In some special cases, using properties of the Beta distribu

Chronic obstructive pulmonary disease (COPD) and cardiovascular disease (CVD) are frequently associated and share common risk factors, pathophysiological processes, symptoms and clinical signs. Ischemic heart disease, heart failure, pulmonary hypertension and atrial fibrillation are common comorbidities of COPD. COPD has been described as an independent risk factor for CVD. Cardiac troponin elevat

The present study focuses on in situ as well as ex situ studies on the sintering of pre-compacted powder mixtures of 50 at% Nickel-50 at %Titanium. In situ studies were carried out by monitoring the changes in morphology of the fracture surface of the compact continuously during heating in the hot stage of an environmental scanning electron microscope. Results on the initiation of sintering and it

The sintering of pre-pressed powders of iron, copper and nickel has been studied in situ using an Environmental scanning electron microscope. The small samples were slowly heated to sintering temperatures in a reducing atmosphere. Continuous monitoring of the fracture surface of the sample revealed the initial formation of inter-particle bonds at relatively low temperatures for fine particles. The