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Current global models of the carbon (C) cycle consider only vertical gas exchanges between terrestrial or oceanic reservoirs and the atmosphere, thus not considering the lateral transport of carbon from the continents to the oceans. Therefore, those models implicitly consider all of the C which is not respired to the atmosphere to be stored on land and hence overestimate the land C sink capability
Abstract: The time course for the ischemia‐induced changes in the subcellular distribution of protein kinase C (PKC) (α), (β311). and (γ) and the activity of PKC were studied in the neocortex of rats subjected to 1, 2, 3, 5, 10, and 15 min of global cerebral ischemia. In the particulate fraction, a 14‐fold increase in PKC (γ) levels was seen at 3 min of ischemia, which further increased at 5–15 m
Disruption of intracellular calcium homeostasis is thought to play a role in neurodegenerative disorders such as Huntington's disease (HD). To study different aspects of putative pathogenic mechanisms in HD, we aimed to establish an in vitro model of calcium-induced toxicity in striatal neurons. The calcium ionophore A23187 induced a concentration- and time-dependent cell death in cultures of embr
We report a case of congenital absence of the portal vein (CAPV) in an adult male who underwent resection for hepatocellular carcinoma. CAPV is a rare anomaly; only 29 cases, mostly in children, have been presented to date. An association between CAPV and cardiac abnormalities, polysplenia syndrome, skeletal abnormalities and liver tumors has been seen in children. To the best of our knowledge thi
Background/Aims: The aim was to investigate the effect of blood inflow occlusion on lesion size and ultrasonographic findings during interstitial laser thermotherapy of normal liver. Methodology: Pigs were treated with or without hepatic inflow occlusion at a laser power of 3 W or without inflow occlusion at 5 W (target temperature 43°C). The thermotherapy system consisted of an Nd:YAG laser and a
In longitudinal studies, changes in participants’ cognitive performances can partly be attributed to variations in the testing situation (testing specific factors), such as, different test administrators or different testing environments. Focusing on test administrator influence, testing specific factors were examined in a Swedish longitudinal study of ageing. Test scores from 6,686 examinations r
The purpose of this article is to empirically investigate the present state of the performance measurement systems (PMS) at 7 sites of 6 different large Swedish manufacturing companies. The methodology has both a bottom-up and a top-down perspective. Important findings are that the PMSs are very similar in how they function but differ a lot in what is measured.
A substantial number of people who are exposed to vibrating hand-held tools develop vasospastic and sensorineural symptoms that may seriously affect the ability to work. Apart from the discomfort of the disease itself, this leads to socio-economic problems for the patients and high costs for the society. The diagnosis of the neurological symptoms is sometimes difficult and may be misinterpreted as
Introduction: We estimated the age-specific duration of the preclinical, prodromal, and dementia stages of Alzheimer's disease (AD) and the influence of sex, setting, apolipoprotein E (APOE) genotype, and cerebrospinal fluid tau on disease duration. Methods: We performed multistate modeling in a combined sample of 6 cohorts (n = 3268) with death as the end stage and estimated the preclinical, prod
The Huang-Huai-Hai River Basin covers the major political and socioeconomic centers of China. Thus, flood protection and economic development by sustainable water supply are important. Due to this, it is imperative to study distribution and variation of precipitation characteristics under climate change. As hydrological observations are limited, scholars have done more research on daily, monthly,
This paper proposes a first-principle model of GPS receivers, that allows us to exploit the trade-off between battery consumption and positioning accuracy. We present the model and propose a GPS sampling strategy that uses both the current positioning confidence, and information about the GPS status. We complement the GPS sensor with internal measurement units and show how the given model exposes
Left ventricular assist devices (LVADs) have dramatically improved short-term outcomes among patients with advanced heart failure. While neurohormonal blockade (NHB) is the cornerstone of treatment for patients with heart failure with reduced ejection fraction, its effect after LVAD placement has not been established. We reviewed medical records of 307 patients who underwent primary LVAD implantat
Patients with biventricular assist devices (BIVAD) are severely critically ill compared with patients who receive left ventricular assist device (LVAD) support alone and portend a significant risk for greater adverse events including pump thrombosis (PT). Current approaches to treat PT are limited to LVAD with variable outcomes depending on the management strategy implemented. Moreover the managem
Road Agencies set quantitative targets and adopt related road safety strategies within the priorities and the available resources at the time of an economic crisis. In this framework, benefit-cost analyses (BCA) are carried out to support the decision making process and alternative measures are ranked according to their expected benefit and benefit-cost ratio calculated using a Safety Performance
In this paper, a multi-scale model is used to assess the multiple mineral precipitation potential in a full-scale anaerobic granular sludge system. Reactor behaviour is analysed under different operational conditions (addition/no addition of reject water from dewatering of lime-stabilized biomass) and periods of time (short/long term). Model predictions suggest that a higher contribution of reject
In Alzheimer's disease (AD), an association was found between autonomic dysfunction and frontal hypoperfusion in brain during orthostatic testing. To ascertain whether frontal hypoperfusion is dependent on longitudinal effects of hemodynamic disturbances, or contributes to them, we studied the relationship between the presence of orthostatic hypotension (OH) and resting cerebral blood flow (CBF) i
Thirteen women with senile dementia of Alzheimer’s type (SDAT) according to NINCDS-ADRDA and 21 age-matched control women, aged 75-96 years, were investigated with clinical examination, dementia rating scales and single photon emission computed tomography (SPECT) using99mTc-hexamethylpropyleneamine oxime (HM-PAO) as a tracer of regional cortical blood flow. The aim was to study whether typical SPE
Cleaning coils can be an efficient way to reduce the need for reparations and maintain the functionality of a ventilation system. This study builds upon existing knowledge concerning the contamination of heat exchangers. Through field measurements on coils and heat-recovery units, a laboratory experiment on a coil, and a generic calculation example, this study determines the impact of sustained co
