Advanced search    

Search: *

1,016,088 papers found. Showing first 1,000 results.
Use AND, OR, NOT, +word, -word, "long phrase", (parentheses) to fine-tune your search.

Prone positioning in acute respiratory distress syndrome after abdominal surgery: a multicenter retrospective study

Background The recent demonstration of prone position’s strong benefit on patient survival has rendered proning a major therapeutic intervention in severe ARDS. Uncertainties remain as to whether or not ARDS patients in the postoperative period of abdominal surgery should be turned prone because of the risk of abdominal complications. Our aim was to investigate the prevalence of ...

Accuracy of glomerular filtration rate equations for chronic kidney disease patients at the G3a stage: a single-center cross-sectional study

Background Kidney disease improving global outcomes provided a new classification for chronic kidney disease (CKD) by subdividing the G3 stage into G3a and G3b stages based on glomerular filtration rate (GFR) in 2012. Currently, a few methods are used to evaluate GFR, including measured GFR (mGFR) and estimated GFR (eGFR). One of the mGFR was 99mTc-DTPA scintigraphy method and eGFR ...

Altered expression profiles of microRNA families during de-etiolation of maize and rice leaves

Background MicroRNAs (miRNAs) are highly conserved small non-coding RNAs that play important regulatory roles in plants. Although many miRNA families are sequentially and functionally conserved across plant kingdoms (Dezulian et al. in Genome Biol 13, 2005), they still differ in many aspects such as family size, average length, genomic loci etc. (Unver et al. in Int J Plant ...

Crying spells triggered by thumb-index rubbing after thalamic stroke: a case report

Background Pathologic crying, devoid of any emotional counterpart, is known to occur as a consequence of various brain stem, cortical hemispheric and cerebellar lesions or, quite exceptionally, of “dacrystic” epilepsy. The case reported here suggests that thalamic lesions may also cause crying spells, under the special circumstances described below. Case presentation After a mild ...

Genetic monitoring to evaluate reintroduction attempts of a highly endangered rodent

The ultimate strategy to prevent species extinction is captive breeding followed by reintroduction of individuals into the wild. Unfortunately, overall success of reintroductions is poor and in most cases conservation breeding is applied for species where individual numbers, population numbers and genetic diversity is strongly reduced. In addition, reintroductions inevitably result ...

Quantifying annual soil and nutrient lost by rill erosion in continuously used semiarid farmlands, North Ethiopia

The loss of soil from land surfaces by erosion is widespread and reduces the productivity of agricultural lands. Concurrently, due to increasing human population, agricultural land expansion and exploitation, soil erosion and nutrient loss are the major environmental problems in Ethiopia. This study was conducted to estimate annual losses of soil, soil nutrients and carbon due to ...

Repeatability and consistency of individual behaviour in juvenile and adult Eurasian harvest mice

Knowledge on animal personality has provided new insights into evolutionary biology and animal ecology, as behavioural types have been shown to affect fitness. Animal personality is characterized by repeatable and consistent between-individual behavioural differences throughout time and across different situations. Behavioural repeatability within life history stages and ...

Retinal neurodegeneration in patients with type 1 diabetes mellitus: the role of glycemic variability

Aims Recent studies have identified neuroretinal abnormalities in persons affected by diabetes mellitus, before the onset of microvascular alterations. However, the role of glycemic variability (GV) on early retinal neurodegeneration is still not clarified. Methods To explore the relationship between glycemic control and neuroretinal characteristics, 37 persons with Type 1 diabetes ...

Analysis of the impact of drought on selected morphological, biochemical and physiological traits of rye inbred lines

The complex nature of plant resistance to drought makes the process of selecting the appropriate genes that increase the resistance to drought very difficult. With the future in mind, the aim of our study was to search for physiological and biochemical parameters which could provide a basis for the identification of genes controlling rye resistance to drought stress. The ...

Spatial and temporal variation of nitrogen dioxide measurement in the Middle East within 2005–2014

The present study, aims to assess the spatial and temporal variation of NO2 measurement over the Middle East region within 2005–2014. For this purpose, satellite-based data of the Ozone Monitoring Instrument (OMI) were implemented to measure the NO2 concentrations. The results reveal an average increase of NO2 emission in the Middle East during recent decade. Therefore, the results ...

Biocontrol activities of bacteria from cowdung against the rice sheath blight pathogen

To discover bacteria with potential biocontrol activity against the rice sheath blight (RSB) pathogen, Rhizoctonia solani, cowdung (CD) associated bacteria were screened for antifungal activity a dual-culture method. Five potential biocontrol bacteria were identified to species-level based on their colony morphology, physiology, biochemical characteristics, utilization of carbon ...

The Use of APS Thermal Barrier Coatings in Corrosive Environments

Thermal barrier coatings (TBC) can be used to reduce the metal temperature of gas turbine blades enabling higher Cr alloys (lower strength) to be used when gas turbines are to be used in corrosive environments (where hot corrosion resistance is required). However, the TBC must also be resistant to the corrosive environment and remain attached to the blade. A 1000 h test to evaluate ...

Understanding dog cognition by functional magnetic resonance imaging

Recent pioneering work has shown the great promise that scanning awake, nonsedated dogs holds for both understanding the canine and the human brain and mind. A number of technological and methodological challenges, however, still need to be overcome to fully tap this potential.

The application of satellite-based model and bi-stable ecosystem balance concept to monitor desertification in arid lands, a case study of Sinai Peninsula

Desertification is responsible for depleting natural resources in arid lands, which is globally happening in an alarming rate. It is considered as the major environmental threat that affects about 40% of the world dry lands, which are populated by approximately one billion humans. In this paper the main objective is to discuss the recent and past research in monitoring and ...

A Comprehensive Performance Evaluation of Deformable Face Tracking “In-the-Wild”

Recently, technologies such as face detection, facial landmark localisation and face recognition and verification have matured enough to provide effective and efficient solutions for imagery captured under arbitrary conditions (referred to as “in-the-wild”). This is partially attributed to the fact that comprehensive “in-the-wild” benchmarks have been developed for face detection, ...

On \(C^\infty \) well-posedness of hyperbolic systems with multiplicities

In this paper, we study first-order hyperbolic systems of any order with multiple characteristics (weakly hyperbolic) and time-dependent analytic coefficients. The main question is when the Cauchy problem for such systems is well-posed in \(C^{\infty }\) and in \({\mathcal {D}}'\). We prove that the analyticity of the coefficients combined with suitable hypotheses on the ...

Are Quality-Adjusted Life Years a Good Proxy Measure of Individual Capabilities?

Background There is a debate in the health economics literature concerning the most appropriate way of applying Amartya Sen’s capability approach in economic evaluation studies. Some suggest that quality-adjusted life years (QALYs) alone are adequate while others argue that this approach is too narrow and that direct measures of capability wellbeing provide a more extensive ...

Regulation of Sirtuin 3-Mediated Deacetylation of Cyclophilin D Attenuated Cognitive Dysfunction Induced by Sepsis-Associated Encephalopathy in Mice

The present study aimed to investigate cognitive dysfunction in the hippocampus induced by sepsis-associated encephalopathy (SAE) via acetylation of cyclophilin D (CypD) and opening of mitochondrial permeability transition pore. It also explored whether activating sirtuin 3 (SIRT3) can mediate deacetylation of CypD and prevent the development of SAE. Male mice were randomly ...