119 research outputs found
Dying and relational aftermath concerns among terminal cancer patients in China
The need to make sense of one's mortality is of central concern for death studies. We aimed to explore the meaning of aftermath concerns in the process of preparing for dying. Using a qualitative approach, we explored aftermath concerns among 25 participants with terminal cancer in China. Three aftermath concern themes were developed from the participants' narratives: mental concerns about parents, material concerns about children, and spiritual concerns about the self. Aftermath concerns are relational because they are not about what happens within an individual, but between individuals which are manifested within the broader cultural, social, economic and political contexts
Circadian rhythm of Liposcelis entomophila and Liposcelis paeta in paddy warehouse: Presentation
Booklice is a small but serious stored grain pest, and understanding the circadian rhythm of booklice help to control. In this study, circadian activity of booklice were monitored with sticky traps in the grain bulk surfaces of two warehouses stored paddy rice in two different provinces in China. The results showed that the species of booklice were different and were Liposcelis entomophila, and Liposcelisp paeta for Nanning’s and Zhanjiang’s warehouses respectively. In term of L.entomophila, its activity intensity gradually decreased from 0 am to 12 pm and reached the lowest level of daily activity at 12pm. After this, there was a steady and straight upward trend, and the peak of its activity intensity is reached at 8 pm. Its circadian activity trend can be represented as: y = - 0.971x3 + 21.88x2 - 139.5x + 353.4(x: time; y: quantity of booklice). Over the same period, the activity intensity of L.paeta varied greatly. It gradually increased, reached a peak at 8 am, dropped dramatically at 12 pm and then climbed the second peak at 6 pm.Booklice is a small but serious stored grain pest, and understanding the circadian rhythm of booklice help to control. In this study, circadian activity of booklice were monitored with sticky traps in the grain bulk surfaces of two warehouses stored paddy rice in two different provinces in China. The results showed that the species of booklice were different and were Liposcelis entomophila, and Liposcelisp paeta for Nanning’s and Zhanjiang’s warehouses respectively. In term of L.entomophila, its activity intensity gradually decreased from 0 am to 12 pm and reached the lowest level of daily activity at 12pm. After this, there was a steady and straight upward trend, and the peak of its activity intensity is reached at 8 pm. Its circadian activity trend can be represented as: y = - 0.971x3 + 21.88x2 - 139.5x + 353.4(x: time; y: quantity of booklice). Over the same period, the activity intensity of L.paeta varied greatly. It gradually increased, reached a peak at 8 am, dropped dramatically at 12 pm and then climbed the second peak at 6 pm
Ultrafast-and-Ultralight ConvNet-Based Intelligent Monitoring System for Diagnosing Early-Stage Mpox Anytime and Anywhere
Due to the lack of more efficient diagnostic tools for monkeypox, its spread
remains unchecked, presenting a formidable challenge to global health. While
the high efficacy of deep learning models for monkeypox diagnosis has been
demonstrated in related studies, the overlook of inference speed, the parameter
size and diagnosis performance for early-stage monkeypox renders the models
inapplicable in real-world settings. To address these challenges, we proposed
an ultrafast and ultralight network named Fast-MpoxNet. Fast-MpoxNet possesses
only 0.27M parameters and can process input images at 68 frames per second
(FPS) on the CPU. To counteract the diagnostic performance limitation brought
about by the small model capacity, it integrates the attention-based feature
fusion module and the multiple auxiliary losses enhancement strategy for better
detecting subtle image changes and optimizing weights. Using transfer learning
and five-fold cross-validation, Fast-MpoxNet achieves 94.26% Accuracy on the
Mpox dataset. Notably, its recall for early-stage monkeypox achieves 93.65%. By
adopting data augmentation, our model's Accuracy rises to 98.40% and attains a
Practicality Score (A new metric for measuring model practicality in real-time
diagnosis application) of 0.80. We also developed an application system named
Mpox-AISM V2 for both personal computers and mobile phones. Mpox-AISM V2
features ultrafast responses, offline functionality, and easy deployment,
enabling accurate and real-time diagnosis for both the public and individuals
in various real-world settings, especially in populous settings during the
outbreak. Our work could potentially mitigate future monkeypox outbreak and
illuminate a fresh paradigm for developing real-time diagnostic tools in the
healthcare field
Absolute frequency measurements with a robust, transportable ^{40}Ca^{+} optical clock
We constructed a transportable 40Ca+ optical clock (with an estimated minimum
systematic shift uncertainty of 1.3*10^(-17) and a stability of
5*10^(-15)/sqrt{tau} ) that can operate outside the laboratory. We transported
it from the Innovation Academy for Precision Measurement Science and
Technology, Chinese Academy of Sciences, Wuhan to the National Institute of
Metrology, Beijing. The absolute frequency of the 729 nm clock transition was
measured for up to 35 days by tracing its frequency to the second of
International System of Units. Some improvements were implemented in the
measurement process, such as the increased effective up-time of 91.3 % of the
40Ca+ optical clock over a 35-day-period, the reduced statistical uncertainty
of the comparison between the optical clock and hydrogen maser, and the use of
longer measurement times to reduce the uncertainty of the frequency
traceability link. The absolute frequency measurement of the 40Ca+ optical
clock yielded a value of 411042129776400.26 (13) Hz with an uncertainty of
3.2*10^(-16), which is reduced by a factor of 1.7 compared with our previous
results. As a result of the increase in the operating rate of the optical
clock, the accuracy of 35 days of absolute frequency measurement can be
comparable to the best results of different institutions in the world based on
different optical frequency measurements.Comment: 15 pages, 5 figure
Assessing the Pharmacological and Therapeutic Efficacy of Traditional Chinese Medicine Liangxue Tongyu Prescription for Intracerebral Hemorrhagic Stroke in Neurological Disease Models
Intracerebral hemorrhage is a fatal subtype of stroke, with crucial impact on public health. Surgical removal of the hematoma as an early-stage treatment for ICH can’t improve long-term prognosis remarkably. Liangxue tongyu prescription (LP), a Traditional Chinese Medicine (TCM) formula, includes eight ingredients and has been used to treat ICH in the clinical. In the study, we elucidated the pharmacological efficacy and therapeutic efficacy of LP to dissect the mechanism of LP against ICH via network analysis and experimental validation. First, we discovered 34 potential compounds and 146 corresponding targets in LP based on network prediction. 24 signal pathway were obtained by the Clue Go assay based on potential compounds in LP against ICH. Second, we found that LP can not only decreased the level of high sensitive C reactive protein (HS-CRP), tumor necrosis factor-α (TNF-α), NF-kβ, D-dimmer (D2D), estradiol (E2), S-100B, neuron specific enolase (NSE), and interleukin 1 (IL-1) in plasma on spontaneously hypertensive rats (SHRs), but also promoted cell proliferation and inhibited cell apoptosis on the glutamate-induced PC12 cell. The compounds including Taurine, Paeonol, and Ginsenoside Rb1 in LP can activate PI3K/AKT pathway. Third, from the three-factor two-level factorial design, compound combinations in LP, such as Taurine and Paeonol, Taurine and Geniposide, Ginsenoside Rg1, and Ginsenoside Rb1, had first-level interactions on cell proliferation. Compound combinations including Taurine and Paeonol, Ginsenoside Rg1 and Ginsenoside Rb1 had as significant increase in efficiency on inhibiting the apoptosis of PC12 cells at the low concentration and up-regulating of PI3K and AKT. Overall, our results suggested that LP had integrated therapeutic effect on ICH due to activities of anti-inflammatory, anti-coagulation, blood vessel protection, and protection neuron from excitotoxicity based on the way of “multi-component, multi-target, multi-pathway,” and compound combination in LP can offer protection neuron from excitotoxicity at the low concentration by activation of the PI3K/Akt signal pathway
HI content of massive red spiral galaxies observed by FAST
A sample of 279 massive red spirals was selected optically by Guo et al.
(2020), among which 166 galaxies have been observed by the ALFALFA survey. In
this work, we observe HI content of the rest 113 massive red spiral galaxies
using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). 75 of
the 113 galaxies have HI detection with a signal-to-noise ratio (S/N) greater
than 4.7. Compared with the red spirals in the same sample that have been
observed by the ALFALFA survey, galaxies observed by FAST have on average a
higher S/N, and reach to a lower HI mass. To investigate why many red spirals
contain a significant amount of HI mass, we check color profiles of the massive
red spirals using images observed by the DESI Legacy Imaging Surveys. We find
that galaxies with HI detection have bluer outer disks than the galaxies
without HI detection, for both ALFALFA and FAST samples. For galaxies with HI
detection, there exists a clear correlation between galaxy HI mass and g-r
color at outer radius: galaxies with higher HI masses have bluer outer disks.
The results indicate that optically selected massive red spirals are not fully
quenched, and the HI gas observed in many of the galaxies may exist in their
outer blue disks.Comment: 11 pages, 9 figures, accepted by MNRAS; Table 1 is available in the
source file
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Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study
Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat
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Correction to: Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study
The original version of this article unfortunately contained a mistake
Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study
Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat
parallel construction of approximate knn graph
Building k-nearest neighbor (kNN) graphs is a necessary step in such areas as data mining and machine learning. So in this paper, we attempt to study the kNN furthermore, we first propose a parallel algorithm for approximate kNN graph construction and then apply the kNN graph to the application of clustering. Experiments show that our MPI/OpenMP mixed mode codes can make the construction of approximate kNN graph faster and make the parallelization and implementation easier. Finally, we compare the results of agglomerative clustering methods by using our parallel algorithm to illustrate the applicability of this method. © 2012 IEEE.Building k-nearest neighbor (kNN) graphs is a necessary step in such areas as data mining and machine learning. So in this paper, we attempt to study the kNN furthermore, we first propose a parallel algorithm for approximate kNN graph construction and then apply the kNN graph to the application of clustering. Experiments show that our MPI/OpenMP mixed mode codes can make the construction of approximate kNN graph faster and make the parallelization and implementation easier. Finally, we compare the results of agglomerative clustering methods by using our parallel algorithm to illustrate the applicability of this method. © 2012 IEEE
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