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result(s) for
"Dou, Yuqi"
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Influence of Internet-Based Health Management on Control of Clinical Parameters in Patients With Hypertension: Four-Year Longitudinal Study
2023
In recent years, more and more studies have shown that internet-based health management can help patients with hypertension control their blood pressure. However, there is a lack of similar research in China.
We designed this study to clarify the impact of long-term internet-based health management on the control of clinical parameters in patients with hypertension. These results are also expected to identify the relevant factors affecting the control of clinical parameters in hypertension more accurately toward developing more targeted health management strategies.
This was a longitudinal study of internet-based health management in the five provinces of northwest China. The inclusion criteria were aged ≥18 years and no serious cognitive disease or mental disorder. After collecting the physical examination data of 8567 people in the five northwest provinces in 2013, we conducted online health management (including diet, exercise, and behavior) and follow-up. In the physical examination in 2013, 1008 new patients with hypertension were identified, who were divided into a good blood pressure control group and poor blood pressure control group. Physical examination and a questionnaire survey were conducted every 2 years to understand the changes of health management on the subjects' health-related behaviors. We then analyzed the changes of clinical indicators related to hypertension and the influencing factors related to blood pressure control in patients with hypertension. All statistical analyses were performed using R software (version 4.1.2) and a P value <.05 was considered statistically significant.
A total of 8567 people met the inclusion criteria and underwent health management. Self-comparison showed that after 4 years of health management, the smoking cessation rate and amount of exercise significantly increased (both P<.001). The low-density lipoprotein-cholesterol levels also increased (P=.005), whereas the high-density lipoprotein-cholesterol levels decreased (P=.007). The newly discovered patients with hypertension in 2013 were further screened. After 4 years of health management, their smoking cessation rate increased significantly (P=.03) and the amount of exercise increased but not significantly (P=.08). In terms of clinical indicators, the diastolic blood pressure considerably decreased (P<.001) and the systolic blood pressure slightly decreased (P=.13). The correlation analysis of blood pressure control in patients with new-onset hypertension showed that gender (female) and changing relevant factors according to health management behaviors (BMI; cereals and potatoes intake; fish, livestock meat, and eggs intake; fruit intake; and physical activity) were the protective factors of blood pressure control.
Internet-based health management has a significant and long-term effect on blood pressure control in patients with hypertension.
Journal Article
Autonomous sortie scheduling for carrier aircraft fleet under towing mode
2025
Safe and efficient sortie scheduling on the confined flight deck is crucial for maintaining high combat effectiveness of the aircraft carrier. The primary difficulty exactly lies in the spatiotemporal coordination, i.e., allocation of limited supporting resources and collision-avoidance between heterogeneous dispatch entities. In this paper, the problem is investigated in the perspective of hybrid flow-shop scheduling problem by synthesizing the precedence, space and resource constraints. Specifically, eight processing procedures are abstracted, where tractors, preparing spots, catapults, and launching are virtualized as machines. By analyzing the constraints in sortie scheduling, a mixed-integer planning model is constructed. In particular, the constraint on preparing spot occupancy is improved to further enhance the sortie efficiency. The basic trajectory library for each dispatch entity is generated and a delayed strategy is integrated to address the collision-avoidance issue. To efficiently solve the formulated HFSP, which is essentially a combinatorial problem with tightly coupled constraints, a chaos-initialized genetic algorithm is developed. The solution framework is validated by the simulation environment referring to the Fort-class carrier, exhibiting higher sortie efficiency when compared to existing strategies. And animation of the simulation results is available at www.bilibili.com/video/BV14t421A7Tt/. The study presents a promising supporting technique for autonomous flight deck operation in the foreseeable future, and can be easily extended to other supporting scenarios, e.g., ammunition delivery and aircraft maintenance.
Journal Article
Dose response relationship between breast cancer and somatotypes during childhood: a systematic review and meta-analysis
2023
ObjectivesThis study aims to evaluate the relationship between breast cancer and somatotypes during early life by meta-analysis and give the corresponding advice.MethodsObservational studies till April 5, 2021, which explore women with/without breast cancer who used the Stunkard Figure Rating Scale/Sørensen Somatotypes to evaluate their somatotype before 18 years of age and distant breast cancer risk were included. Using random/fixed-effect models, the pooled relative risks (RRs) and 95% confidence intervals (CIs) were estimated. Then a nonlinear dose–response meta-analysis was conducted using restricted cubic spline analysis.ResultsSix articles involving 15,211 breast cancer patients from 341,905 individuals were included for performing a meta-analysis of early somatotype and breast cancer risk. The pooled results showed that the protection became stronger with the increase of somatotype until it reached 6. The restricted cubic spline model indicated a linear relationship between somatotypes and breast cancer (P-nonlinearity = 0.533). Subgroup analysis of menopausal status showed that increasing somatotype during childhood was increasingly protective against postmenopausal breast cancer from somatotype 3 to somatotype 6, with a 0.887-fold (RR = 0.887, 95% CI: 0.842, 0.934) to 0.759-fold (RR = 0.759, 95% CI: 0.631, 0.913) decreased risk of breast cancer (P-nonlinearity = 0.880), but this association was not found in the population with premenopausal breast cancer (P-nonlinearity = 0.757). When stratified by age, among people younger than 10 years of age, an increase in somatotype was associated with a statistically significant reduction in breast cancer risk. From somatotype 3 to somatotype 6, the risk of breast cancer was reduced by 9.7–27.7% (P-nonlinearity = 0.175).ConclusionsWith early-life adiposity, our data support an inverse association with breast cancer risk, especially age less than 10 years and in postmenopausal women. Since girls with overweight likely remain overweight or even develop obesity in adulthood. While adults with overweight and obese are at increased risk of breast cancer and other types of cancer and various chronic diseases. Hence, we recommend that children should maintain a normal or slightly fat somatotype throughout all periods of life.
Journal Article
Effect of Fructooligosaccharides Supplementation on the Gut Microbiota in Human: A Systematic Review and Meta-Analysis
2022
Background: Numerous studies have investigated the effects of the supplementation of fructooligosaccharides (FOS) on the number of bacteria in the gut that are good for health, but the results have been inconsistent. Additionally, due to its high fermentability, supplementation of FOS may be associated with adverse gastrointestinal symptoms such as bloating and flatulence. Therefore, we assessed the effects of FOS interventions on the composition of gut microbiota and gastrointestinal symptoms in a systematic review and meta-analysis. Design: All randomized controlled trials published before 10 July 2022 that investigated the effects of FOS supplementation on the human gut microbiota composition and gastrointestinal symptoms and met the selection criteria were included in this study. Using fixed or random-effects models, the means and standard deviations of the differences between the two groups before and after the intervention were combined into weighted mean differences using 95% confidence intervals (CIs). Results: Eight studies containing 213 FOS supplements and 175 controls remained in this meta-analysis. Bifidobacterium spp. counts significantly increased during FOS ingestion (0.579, 95% CI: 0.444–0.714) in comparison with that of the control group. Subgroup analysis showed greater variation in Bifidobacterium spp. in adults (0.861, 95% CI: 0.614–1.108) than in infants (0.458, 95% CI: 0.297–0.619). The increase in Bifidobacterium spp. counts were greater in the group with an intervention duration greater than 4 weeks (0.841, 95% CI: 0.436–1.247) than an intervention time less than or equal to four weeks (0.532, 95% CI: 0.370–0.694), and in the group with intervention doses > 5 g (1.116, 95% CI: 0.685–1.546) the counts were higher than those with doses ≤ 5 g (0.521, 95% CI: 0.379–0.663). No differences in effect were found between FOS intervention and comparators in regard to the abundance of other prespecified bacteria or adverse gastrointestinal symptoms. Conclusions: This is the first meta-analysis to explore the effect of FOS on gut microbiota and to evaluate the adverse effects of FOS intake on the gastrointestinal tract. FOS supplementation could increase the number of colonic Bifidobacterium spp. while higher dose (7.5–15 g/d) and longer duration (>4 weeks) showed more distinct effects and was well tolerated.
Journal Article
Effect of n‐3 polyunsaturated fatty acid on bone health: A systematic review and meta‐analysis of randomized controlled trials
2022
Bone metabolism is a complicated process, which involves bone modeling and remodeling. If this process is unbalanced, bone loss and resultant osteoporosis might occur. Recently, nutrition supplementations such as n‐3 polyunsaturated fatty acids (PUFAs) are considered to be used on improving the bone metabolism and reducing the risk of osteoporosis. To more precisely assess the effects of n‐3 PUFA supplementation on bone mass and clarify its potential mechanism, we have conducted a systematic review and meta‐analysis. Based on the strict inclusion and exclusion criteria, 12 articles were included in this meta‐analysis. The results in articles show that n‐3 PUFAs could slightly enhance the level of bone mineral density (BMD) (0.005 g/cm2; 95% CI, 0.000–0.010) (n = 7), which was the primary outcome for the research in comparison with the control group. In addition, the results also illustrate that the increasing effect on BMD (0.024 g/cm2; 95% CI, 0.020–0.028) became more significant for postmenopausal women. N‐3 PUFAs had no significance on the level of bone‐specific alkaline phosphatase (BALP) (−0.24 µg/L; 95% CI, −0.86 to 0.39) and osteocalcin (−0.63 μg/L; 95% CI, −1.84 to 0.57) (n = 5), which are the specific markers of bone formation. When compared with the eicosapentaenoic acid + docosahexaenoic acid supplementation, the supplementation form of α‐linolenic acid significantly increased the content of BALP (0.396 µg/L; 95% CI, 0.069–0.724). The effects of n‐3 PUFAs on bone resorption biomarkers containing type I collagen cross‐linked C‐terminal peptide (CTX) and type I collagen cross‐linked N‐terminal peptide (NTX) are considered and used in our study. Results indicated that participants who received n‐3 PUFAs significantly decreased the level of CTX in the human body (−0.367 μg/L; 95% CI, −0.726 to −0.007) (n = 4). However, there was no significant difference in NTX levels in humans after supplementation with n‐3 PUFA (−1.744 µg/L; 95% CI, −3.970–0.481) (n = 3). For postmenopausal women, it presented a significant decreasing level of CTX (−0.393 µg/L; 95% CI, −0.651 to −0.135) and NTX (−2.082 µg/L; 95% CI, −2.970 to −1.195) within their bodies. In conclusion, these findings suggested that n‐3 PUFAs might have a beneficial effect on bone health, especially for α‐linolenic acid supplementation form or for postmenopausal women. N‐3 PUFAs may play a beneficial role on bone health by inhibiting bone resorption, as well as promoting bone formation and enhancing BMD, especially for ALA intervention form or for postmenopausal women. In addition, n‐3 PUFAs supplementations might have short‐term effects for bone turnover markers and long‐term effects for BMD.
Journal Article
Human Milk Oligosaccharides Variation in Gestational Diabetes Mellitus Mothers
2023
Gestational diabetes mellitus (GDM) is a common disease of pregnancy, but with very limited knowledge of its impact on human milk oligosaccharides (HMOs) in breast milk. This study aimed to explore the lactational changes in the concentration of HMOs in exclusively breastfeeding GDM mothers and the differences between GDM and healthy mothers. A total of 22 mothers (11 GDM mothers vs. 11 healthy mothers) and their offspring were enrolled in the study and the levels of 14 HMOs were measured in colostrum, transitional milk, and mature milk. Most of the HMOs showed a significant temporal trend with decreasing levels over lactation; however, there were some exceptions for 2′-Fucosyllactose (2′-FL), 3-Fucosyllactose (3-FL), Lacto-N-fucopentaose II (LNFP-II), and Lacto-N-fucopentaose III (LNFP-III). Lacto-N-neotetraose (LNnT) was significantly higher in GDM mothers in all time points and its concentrations in colostrum and transitional milk were correlated positively with the infant’s weight-for-age Z-score at six months postnatal in the GDM group. Significant group differences were also found in LNFP-II, 3′-Sialyllactose (3′-SL), and Disialyllacto-N-tetraose (DSLNT) but not in all lactational periods. The role of differently expressed HMOs in GDM needs to be further explored by follow-up studies.
Journal Article
Effects of a Formula with scGOS/lcFOS (9:1) and Glycomacropeptide (GMP) Supplementation on the Gut Microbiota of Very Preterm Infants
2022
Microbial colonization of very preterm (VPT) infants is detrimentally affected by the complex interplay of physiological, dietary, medical, and environmental factors. The aim of this study was to evaluate the effects of an infant formula containing the specific prebiotic mixture of scGOS/lcFOS (9:1) and glycomacropeptide (GMP) on the composition and function of VPT infants’ gut microbiota. Metagenomic analysis was performed on the gut microbiota of VPT infants sampled at four time points: 24 h before the trial and 7, 14, and 28 days after the trial. Functional profiling was aggregated into gut and brain modules (GBMs) and gut metabolic modules (GMMs) based on the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. Enterococcus faecium, Escherichia coli, Klebsiella aerogenes, and Klebsiella pneumoniae were dominant species in both the test group and the control group. After the 4-week intervention, the abundance of Bifidobacterium in the test group was significantly increased. We found two GBMs (quinolinic acid synthesis and kynurenine degradation) and four GMMs (glutamine degradation, glyoxylate bypass, dissimilatory nitrate reduction, and preparatory phase of glycolysis) were significantly enriched in the test group, respectively. The results of this study suggested that formula enriched with scGOS/lcFOS (9:1) and GPM is beneficial to the intestinal microecology of VPT infants.
Journal Article
Divacancy and resonance level enables high thermoelectric performance in n-type SnSe polycrystals
2024
N
-type polycrystalline SnSe is considered as a highly promising candidates for thermoelectric applications due to facile processing, machinability, and scalability. However, existing efforts do not enable a peak
ZT
value exceeding 2.0 in
n
-type polycrystalline SnSe. Here, we realized a significant
ZT
enhancement by leveraging the synergistic effects of divacancy defect and introducing resonance level into the conduction band. The resonance level and increased density of states resulting from tungsten boost the Seebeck coefficient. The combination of the enhanced electrical conductivity (achieved by increasing carrier concentration through WCl
6
doping and Se vacancies) and large Seebeck coefficient lead to a high power factor. Microstructural analyses reveal that the co-existence of divacancy defects (Se vacancies and Sn vacancies) and endotaxial W- and Cl-rich nanoprecipitates scatter phonons effectively, resulting in ultralow lattice conductivity. Ultimately, a record-high peak
ZT
of 2.2 at 773 K is achieved in
n
-type SnSe
0.92
+ 0.03WCl
6
.
N-type polycrystalline SnSe shows inferior ZT to p-type polycrystalline due to its high thermal conductivity and lower power factor. The authors overcome the problem via the synergy of divacancy defect and introducing resonance level into the conduction band.
Journal Article
FasterMDE: A real-time monocular depth estimation search method that balances accuracy and speed on the edge
Monocular depth estimation (MDE) is critical in enabling intelligent autonomous systems and has received considerable attention in recent years. Achieving both low latency and high accuracy in MDE is desirable but challenging to optimize, especially on edge devices. In this paper, we present a novel approach to balancing speed and accuracy in MDE on edge devices. We introduce FasterMDE, an efficient and fast encoder-decoder network architecture that leverages a multiobjective neural architecture search method to find the optimal encoder structure for the target edge. Moreover, we incorporate a neural window fully connected CRF module into the network as the decoder, enhancing fine-grained depth prediction based on coarse depth and image features. To address the issue of bad “local minimums” in the multiobjective neural architecture search, we propose a new approach for automatically learning the weights of subobjective loss functions based on uncertainty. We also accelerate the FasterMDE model using TensorRT and implement it on a target edge device. The experimental results demonstrate that FasterMDE achieves a better balance of speed and accuracy on the KITTI and NYUv2 datasets compared to previous methods. We validate the effectiveness of the proposed method through an ablation study and verify the real-time monocular depth estimation performance of FasterMDE in realistic scenarios. On the KITTI dataset, the FasterMDE model achieves a high frame rate of 555.55 FPS with 9.1% Abs Rel on a single NVIDIA Titan RTX GPU and 14.46 FPS on the NVIDIA Jetson Xavier NX.
Journal Article
Matrix plainification leads to high thermoelectric performance in plastic Cu2Se/SnSe composites
2025
Thermoelectric technology exhibits significant potential for power generation and electronic cooling. In this study, we report the achievement of exceptional thermoelectric performance and high plasticity in stable Cu
2
Se/SnSe composites. A novel matrix plainification strategy was employed to eliminate lattice vacancies within the Cu
2
Se matrix of the Cu
2
Se/SnSe composites, resulting in a marked improvement in carrier mobility and power factor. The presence of quasi-coherent interfaces induces phonon scattering, reducing lattice thermal conductivity without compromising carrier mobility. Consequently, a high figure of merit (
ZT
) of 3.3 was attained in the Cu
2
Se/5 wt.% Sn
0.96
Pb
0.01
Zn
0.03
Se composite. Additionally, the presence of high-density nanotwins imparts remarkable plasticity to the composite, yielding a compressive strain of 12%. The secondary phase contributes to the stability of the composite by hindering the extensive migration of Cu ions through bonding interactions. Our findings present a novel strategy for enhancing the thermoelectric performance of composite semiconductors, with potential applicability to other thermoelectric systems.
The authors propose a matrix plainification strategy to eliminate lattice vacancies in the Cu2Se matrix of the Cu2Se/SnSe composites, resulting in obvious improvement in carrier mobility and power factor, obtaining a high figure of merit of 3.3.
Journal Article