Subjects: Psychology >> Social Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： Granpareting is that grandparents take care of grandchildren and assume some or all of the responsibility for upbringing and education. Older parents often become caregivers when young couples are unable to care for their children for some reasons. Based on the researches available, effectiveness of grandparenting on grandparents' depression levels remains unclear. In addition, previous studies have ignored the influence of cultural backgrounds on the relationship between grandparenting and grandparents' depression levels. And differences of cultural background may explain why grandparents take care of their grandchildren and the consequence of grandparenting. Therefore, meta-analysis was used in this paper to explore the relationship between grandparenting and grandparents' depression levels in eastern cultures and western cultures respectively. We identified cross-sectional studies and case-control studies through Web of Science, EBSCO, PubMed, CNKI and Wangfang (from inception to June 29, 2021). Through literature retrieval, 22 articles met the inclusion criteria of this meta-analysis were selected and 22 independent effect sizes were synthesized. CMA3.0 software was used for the meta-analysis. We also applied the Effective Public Health Practice Project's (EPHPP) Quality Assessment Tool for Quantitative Studies to evaluate the quality of primary studies included in the meta-analysis. What's more, publication bias analysis showed that there was no publication bias. And the results of heterogeneity test suggested the use of random-effects model. Evidence from cross-sectional studies and case-control studies was synthesized as standardized mean differences which were used to compare the depression levels of grandparents who did and did not take care of grandchildren. The main-effect analysis showed that standardized mean differences (d) were -2.44 (95%CI: [-3.22, -1.67]) and 0.22 (95%CI: [0.04, 0.40]) in eastern cultures and western cultures respectively. Sensitivity analysis excluded one study with the greatest influence of heterogeneity in the two cultural backgrounds respectively and the effect size was no longer significant in eastern cultures (d= -0.05, 95%CI: [-0.18, 0.08]) and the effect size of western cultures had no significant change. In order to prevent the reliability of meta-analysis from being interfered by this abnormal study of eastern cultures, it was excluded in subsequent analysis. Because of the high level of heterogeneity, we used subgroup analysis and meta-regression to explore whether measurement tools of depression, study design, gender and marriage were potential moderators. Subgroup and meta-regression results showed that in eastern cultures, the type of depression measurement tools, the type of study design, gender and marriage had significant moderating effects. But in western cultures, the results showed that only measurement tools and study design do moderate. In conclusion, it is found that in eastern cultures, grandparenting has no significant effect on the depression levels of the elderly. However, it has a noteworthy negative effect on the depression levels of grandparents in the West. One possible explanation is the weakening of traditional cultural values in the context of eastern cultures and the role strain experienced by the elderly in the context of western cultures. The results of this meta-analysis contribute to a better understanding of the relationship between grandparenting and depression levels of the elderly. They also provide future empirical studies with a reference to explain depression levels of the elderly with grandparenting. However, eastern and western cultures can not represent all cultures, so further researches can focus on using more appropriate coding methods to explore the more precise and more detailed relationships between grandparenting and depression levels of the elderly.
Subjects: Psychology >> Developmental Psychology submitted time 2022-03-04
Abstract：
The effectiveness of grandparenting on grandparents’ depression remains unclear. This paper aimed to verify the hypothesis that grandparenting would relieve grandparents’ depression in eastern cultures while worsen their depression in western cultures. We identified studies through Web of Science, EBSCO, PubMed, CNKI and Wangfang (from inception to June 29, 2021). We did separate random-effects meta-analysis for eastern cultures and western cultures. Evidence from cross-sectional studies and case-control studies was synthesized as standardized mean differences which were used to compare the depression levels of grandparents who did and did not take care of grandchildren. Through literature retrieval, 22 articles and 22 independent effect sizes that met the inclusion criteria of meta-analysis were selected. The results of publication bias analysis illustrated no publication bias. Main-effect analysis indicated a non-significant effect size (d=–0.05, 95%CI=[–0.18, 0.08]) in eastern cultures while a slight effect size (d=0.22, 95%CI=[0.04, 0.40]) in western cultures. Further moderation analysis revealed that the association between grandparenting and depression was moderated by measurement tools, study design, gender and marriage in eastern cultures, but in western cultures, only measurement tools and study design do moderate.
Peer Review Status:
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Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2020-09-28 Cooperative journals: 《计算机应用研究》
Abstract： This paper studied a new event-triggered consensus protocol for MASs based on switching topology. Two events are designed in this protocol, including convergence events caused by agent state evolution and topology events caused by topology change. Stability analysis of public Lyapunov function related to events and consensus proof of MASs are given. A network connectivity algorithm based on constraint set is also designed to enhance network connectivity. The simulation results show that the designed event-triggered consensus protocol can make the state evolution of agents tend to be consistent and effectively reduce the update frequency of the controller of agents in the switching topology network environment, reduce the energy consumption of MASs, improve the connectivity effect of the network effectively, and provide theoretical support for the subsequent research of event-triggered control.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-05-24 Cooperative journals: 《计算机应用研究》
Abstract： How to evaluate the quality of collaborative filtering recommendation is a problem worth study. This paper proposed an approach called RQE-EDKL (recommendation quality evaluation based on empirical distribution and KL divergence) to evaluate the recommendation quality based on empirical distribution and KL divergence. QE-EDKL firstly made use of historical user-item data to produce the historical usage probability distribution of items at different quantities. Secondly, it calculated the KL divergence based on the distributions of the historical usage probability and the usage probability of different recommendations. Thirdly, it regarded the recommendation with the minimum KL divergence as with the best quality and is recommended to the user. Experiments on TalkingData App data sets demonstrate that RQE-EDKL can effectively improve the quality of recommended results of collaborative filtering significantly on both accuracy and diversity.
Subjects: Biology >> Zoology submitted time 2017-10-10 Cooperative journals: 《动物营养学报》
Abstract：本试验旨在研究饲粮中添加不同水平苜草素对蛋鸡胆固醇代谢的影响，并探讨其基因表达调控机制。选取体重和产蛋率相近的26周龄尼克蛋鸡540只，随机分为5组，每组6个重复，每个重复18只。对照组饲喂基础饲粮，试验组分别在基础饲粮中添加300、600、900、1 200 mg/kg的苜草素。预试期7 d，正试期70 d。结果表明：1）试验第35天和第70天，900 mg/kg苜草素组的蛋黄胆固醇含量显著低于对照组（P＜0.05）。2）与对照组相比，900 mg/kg苜草素组显著升高了蛋鸡血清中高密度脂蛋白胆固醇（HDL-C）含量和高密度脂蛋白/低密度脂蛋白（HDL/LDL）（P＜0.05），各组蛋鸡血清中总胆固醇（TC）、甘油三酯（TG）、低密度脂蛋白胆固醇（LDL-C）含量差异均不显著（P＞0.05）。3)与对照组相比，600、900、1 200 mg/kg苜草素组显著降低了蛋鸡肝脏中3-羟基-3-甲基戊二酸单酰辅酶A还原酶（HMGCR）mRNA表达量（P＜0.05），900和1 200 mg/kg苜草素组显著升高了蛋鸡肝脏组织中胆固醇7α-羟化酶（CYP7A1）mRNA表达量（P＜0.05）。各组蛋鸡肝脏中固醇结合蛋白元件-2（SERBP-2）和卵巢中卵黄蛋白原受体（OVR）mRNA表达量无显著差异（P＞0.05）。综上，饲粮中添加苜草素降低了蛋黄胆固醇和全蛋胆固醇含量，其调控机制可能是通过抑制蛋鸡胆固醇的内源性合成和促进胆固醇向胆汁酸的转化排泄2种途径来实现。本试验推荐26～35周龄蛋鸡苜草素添加水平为900 mg/kg。
Subjects: Biology >> Ecology submitted time 2017-04-18 Cooperative journals: 《生态学报》
Abstract：研究植物的资源分配格局以揭示其对环境变化的响应机制有重要的生态学意义。 以内蒙古短花针茅(Stipa breviflora)草 原冷蒿(Artemisia frigida)种群为研究对象，设置 4 个载畜率水平的随机区组试验，由冷蒿地上、地下及各构件生物量的变化入 手，探讨了载畜率对该种群资源分配格局的影响规律，为退化草地的恢复及合理的放牧管理提供参考。 结果表明:(1)冷蒿种 群的高度随载畜率的增大而显著降低(P茎>叶>花/ 果，且各 构件的生物量均随着载畜率的增加而减少;(4)各构件的生物量分配比例对载畜率的响应不同，中度与重度放牧显著增大了生 物量在根的分配(P<0.05)，茎的生物量分配在轻度放牧显著增加，重度放牧显著降低(P<0.05)，轻度与中度放牧显著促进了叶 的生物量分配(P<0.05)，花/ 果的生物量分配随载畜率的增加而显著降低(P<0.05);(5)随着载畜率的增大，冷蒿的有性繁殖 能力减弱，而无性繁殖能力增强。
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2022-12-20 Cooperative journals: 《中国全科医学》
Abstract：
Stroke prevention and treatment has been the focus of the global medical community，and the unique advantages of acupuncture for stroke treatment are becoming increasingly prominent，the Chinese guidelines for acute ischemic stroke 2018 recommend acupuncture for acute cerebral infarction patients （grade II recommendation， B evidence）. Case registration is a real-world study，and the consistency of data elements is one of the necessary elements to ensure the plan implementation，efficient data quality，and credible clinical research evidence.In case registration，one of the real-world studies，the consistency of data elements is one of the necessary elements to ensure the implementation of the plan，efficient data quality and credible clinical research evidence. Therefore, the research group developed the data element and definition of this project based on the key research and development project "Research on the Case Registration of acupuncture and moxibustion for the treatment of stroke disease"，in order to optimize the clinical research paradigm of acupuncture and moxibustion for the prevention and treatment of stroke disease.
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2024-04-25 Cooperative journals: 《中国全科医学》
LI Songjiao
LEI Kangchen
HUANG Hongwen
SONG Jiali
CHANG Yinghui
FAN Xiaonong
LI Li
DU Yuzheng
LIU Jian
CAI Xinru
BIAN Lina
MENG Lina
SONG Qian
SHEN Yan
GE Wenyi
LIU Wei
LI Yibing
JIA Hongbo
GAO Ying
MA Congcong
Abstract： Background Long COVID is a common problem in the recovery period of coronavirus disease（COVID-19）. The prevention and treatment of long COVID has become the focus of the medical fields of COVID-19. It is important to clarify the situation of long COVID in China and find out the follow-up research route，thus providing evidence-based evidence for clinical practice. Objective To explore the characteristics of long COVID in China，aiming to provide references for the follow#2;up research.Methods From January 2023 to August 2023，a self-made survey questionnaire was used to investigate the current situation of long COVID in China. The questionnaire included general information，such as gender and age，treatment expectations，symptoms and signs in acute and recovery period，etc. Results A total of 1001 questionnaires were collected， including 901 people infected with severe acute respiratory syndrome coronavirus 2（SARS-CoV-2），and 585（64.9%） people with long COVID. Binary Logistic regression analysis showed that female（OR=2.000，95% CI=1.477-2.705，P<0.05 ），history of cancer（OR=4.424，95% CI=1.316-14.868，P<0.05 ），and retirement（OR=1.527，95% CI=1.048-2.224， P<0.05）were risk factors for long COVID. Among the 19 symptoms and signs of long COVID，the top three were fatigue（341 people），decrease of memory，comprehension and attention（274 people），and insomnia（217 people）. Low back pain was the leading pain symptom（201 people）. Hair loss was the number one sign to be difficult to self-healing（58.57%）. Acupuncture（55.73%）was the top 1 willingness of treatment，followed by Chinese herbal decoction（53.68%），Chinese traditional patent medicine（47.01 %），Western medicine（24.79%），intravenous drip（12.14%），and hospitalization（11.97%）. Conclusion The incidence of long COVID is relatively high in China. Acupuncture therapy enjoys a widespread favor among patients. It is recommended to carry out targeted research to enhance the clinical evidence for the prevention and treatment of acupuncture therapy. Women，cancer patients，and retired individuals（elderly people）are high-risk groups for long COVID， and low immune function is a common feature among them. It is suggested to establish a database incorporating these populations and conduct cohort studies on the prevention of long COVID through acupuncture. Fatigue，insomnia，and low back pain are more representative symptoms of long COVID，and randomized controlled studies on acupuncture treatment for these three symptoms at first are recommended.
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