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Reduction of tree cover in West African woodlands and promotion in semi-arid farmlands

Woody vegetation in farmland acts as a carbon sink and provides ecosystem services for local people, but no macroscale assessments of the impact of management and climate on woody cover exist for drylands. Here we make use of very high spatial resolution satellite imagery to derive wall-to-wall woody cover patterns in tropical West African drylands. Our study reveals that mean woody cover in farml

Protecting Wireless Mesh Networks Against Adverse Weather Conditions

Adverse weather conditions can cause deterioration of wireless channels, leading to reduced link capacities. Unlike in other types of networks, in radio-based wireless mesh networks, the link capacities depend not only on the prevailing conditions, but also on interfering transmissions, as well as the transmission power and modulation and coding schemes used. This leads to increased difficulty in Adverse weather conditions can cause deterioration of wireless channels, leading to reduced link capacities. Unlike in other types of networks, in radio-based wireless mesh networks, the link capacities depend not only on the prevailing conditions, but also on interfering transmissions, as well as the transmission power and modulation and coding schemes used. This leads to increased difficulty in

Climate contributions to vegetation variations in Central Asian drylands : Pre- and post-USSR collapse

Central Asia comprises a large fraction of the world's drylands, known to be vulnerable to climate change. We analyzed the inter-annual trends and the impact of climate variability in the vegetation greenness for Central Asia from 1982 to 2011 using GIMMS3g normalized difference vegetation index (NDVI) data. In our study, most areas showed an increasing trend during 1982-1991, but experienced a si

Assessment of lactate production as a response to sustained intrapartum hypoxia in large-for-gestational-age newborns.

Introduction Lactate concentration in umbilical cord blood is an important measure of intrapartum anaerobic metabolism. The aim of the study was to compare lactate production of large‐for‐gestational‐age (LGA) fetuses against appropriate‐for‐gestational‐age (AGA) fetuses during hypoxia, in diabetic and non‐diabetic mothers. Material and methods A total of 17 358 validated paired arterial and ven

Pool boiling heat transfer of FC-72 on pin-fin silicon surfaces with nanoparticle deposition

In the present study, two types of micro-pin–fin configurations were fabricated on silicon surfaces by a dry etching method, i.e., staggered pin fins (#1) and aligned pin fins with empty areas (#2). The micro-pin–fin surfaces were then further modified by depositing FeMn oxide nanoparticles (∼35 nm) electrostatically for 8 h and 16 h, respectively, namely #1-8h, #1-16h, #2-8h and #2-16h. Subcooled

Levels of retinal IAPP are altered in Alzheimer's disease patients and correlate with vascular changes and hippocampal IAPP levels

Islet amyloid polypeptide (IAPP) forms toxic aggregates in the brain of patients with Alzheimer's disease (AD). Whether IAPP also affects the retina in these patients is still unknown. Levels of IAPP in soluble and insoluble homogenate fractions of retina and hippocampus from AD patients and nondemented controls were analyzed using ELISA. Number of pericytes and vessel length were determined by an

The narrative rhythm of terror: : A study of the Stockholm terrorist attack and the 'Last Night in Sweden' event

PurposeThe purpose of this paper is to examine how the mediatisation of terror attacks affects the brand image of tourism cities.Design/methodology/approachInformed by theories of mediatisation and space, the study analyses two different types of terror attacks in Sweden during 2017 as media events. The focus of analysis is on identifying spatial and temporal patterns that underpin the narrative r

Gaze Control for Work and Play

PsychNology special issue on Gaze Control for Work and Play. This special issue follows the COGAIN 2007 and 2008 conferences (see www.cogain.org). The focus of the special issue is on gaze control, both for “serious” applications (“work”) as well as for entertainment (“play”). Areas relevant to the special issue include: Eye typing, Gaze-controlled menus, Gaze control for graphical user interfaces

Host instar influence on offspring sex ratio and female preference of Neodryinus typhlocybae (Ashmead) (Hymenoptera, Dryinidae) parasitoid of Metcalfa pruinosa (Say) (Homoptera, Flatidae)

The parasitoid wasp Neodryinus typhlocybae (Ashmead) was introduced to Europe for the biological control of nearctic planthopper Metcalfa pruinosa (Say), which causes severe damage to both crops and ornamental species in the absence of specialized natural enemies. We performed a series of experiments to evaluate the host instar preference and the effects on parasitoid offspring sex. Results showed

Tuning biomimetic membrane barrier properties by hydrocarbon, cholesterol and polymeric additives

The barrier properties of cellular membranes are increasingly attracting attention as a source of inspiration for designing biomimetic membranes. The broad range of potential technological applications makes the use of lipid and lately also polymeric materials a popular choice for constructing biomimetic membranes, where the barrier properties can be controlled by the composition of the membrane c