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641
Error probability of coded STBC systems in block fading environments
منشور في 2006"…Under channel estimation environments, the tradeoff between channel diversity and channel estimation is investigated and the optimal channel memory is approximated analytically. Results show that the performance degradation due to channel memory decreases as the number of transmit antennas is increased. …"
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article -
642
A single-institution review of 157 patients presenting with benign and malignant tumors of the ampulla of Vater
منشور في 2011"…Lymph node involvement was predictive of recurrence and decreased survival. Conclusion Patients with malignant tumors often present with jaundice and larger tumors. …"
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article -
643
Exergames versus self-regulated exercises with instruction leaflets to improve adherence during geriatric rehabilitation: a randomized controlled trial
منشور في 2017"…<h3>Background</h3><p dir="ltr">Improving mobility in elderly persons is a primary goal in geriatric rehabilitation. …"
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644
Combinatory effect of diet and exercise on brain derived neurotrophic factor expression, cognitive function and behavioral phenotypes of psychiatric disorders. (c2017)
منشور في 2017"…Its involvement in the learning processes and memory formation has also been well established. BDNF levels are dramatically decreased in the adult brain in response to stress and are elevated by increased exercise. …"
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masterThesis -
645
Temporal patterns of cancer burden in Asia, 1990–2019: a systematic examination for the Global Burden of Disease 2019 study
منشور في 2024"…This study examines the temporal patterns of incidence, mortality, disability and risk factors of 29 cancers in Asia in the last three decades. MethodsThe age, sex and year-wise estimates of incidence, mortality, and disability-adjusted life years (DALYs) of 29 cancers for 49 Asian countries from 1990 through 2019 were generated as a part of the Global Burden of Disease, Injuries and Risk Factors 2019 study. …"
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article -
646
Global age-sex-specific fertility, mortality, healthy life expectancy (HALE), and population estimates in 204 countries and territories, 1950–2019: a comprehensive demographic anal...
منشور في 2020"…Under-5 deaths declined from 9·6 million (9·1–10·3) in 2000 to 5·0 million (4·3–6·0) in 2019. Global population increased by 25·7%, from 6·2 billion (6·0–6·3) in 2000 to 7·7 billion (7·5–8·0) in 2019. …"
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article -
647
Prevalence and Phylogenetic Analysis of Parvovirus (B19V) among Blood Donors with Different Nationalities Residing in Qatar
منشور في 2021"…B19V DNA prevalence statistically decreased with age (p = 0.03). Anti-B19V IgG was detected in 60.3% (561/930) of the tested samples, while only 2.1% (20/930) were IgM-positive and 1.2% (11/930) were both IgM- and IgG-positive. …"
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648
Biochar from food waste: a sustainable amendment to reduce water stress and improve the growth of chickpea plants
منشور في 2022"…Two biochar application rates improved soil quality by increasing soil porosity from 49.3 to ≥ 53.4%, more than doubling cation exchange capacity to ≥ 21.1 cmolc.kg−1, providing a small reduction in bulk density of approximately 10% and decreasing electrical conductivity of the extract by at least 40% in comparison to control condition. …"
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649
Global, regional, and national stillbirths at 20 weeks' gestation or longer in 204 countries and territories, 1990–2021: findings from the Global Burden of Disease Study 2021
منشور في 2024"…The estimated number of stillbirths occurring at 20 weeks' gestation or longer decreased from 5·08 million (95% UI 4·07–6·35) in 1990 to 3·04 million (2·61–3·62) in 2021, corresponding to a 39·8% (31·8–48·0) reduction, which lagged behind a global improvement in neonatal deaths of 45·6% (36·3–53·1) for the same period (down from 4·03 million [3·86–4·22] neonatal deaths in 1990). …"
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article -
650
The therapeutic potential of matcha tea: A critical review on human and animal studies
منشور في 2023"…To date, randomized clinical trials (RCT) showed that matcha decreases stress, slightly enhances attention and memory, and has no effect on mood. …"
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651
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652
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653
The Effect of Chitosan’s Addition to Resorcinol/Formaldehyde Xerogels on the Characteristics of Resultant Activated Carbon
منشور في 2019"…The total pore volume decreased from 1.040 to 0.238 cm3/g and the total pore surface area decreased from 912.3 to 554.4 m2/g. …"
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654
Optimal load distribution for the detection of VM-based DDoS attacks in the cloud
منشور في 2018"…Experimental results reveal that our solution maximizes attacks’ detection, decreases false positives and negatives, and minimizes CPU, memory and bandwidth consumption during DDoS attacks compared to the existing detection load distribution techniques.…"
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article -
655
Spatial, temporal, and demographic patterns in prevalence of smoking tobacco use and attributable disease burden in 204 countries and territories, 1990–2019: a systematic analysis...
منشور في 2021"…<h3>Background</h3><p dir="ltr">Ending the global tobacco epidemic is a defining challenge in global health. …"
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656
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657
Global age-sex-specific fertility, mortality, healthy life expectancy (HALE), and population estimates in 204 countries and territories, 1950–2019: a comprehensive demographic anal...
منشور في 2020"…Under-5 deaths declined from 9·6 million (9·1–10·3) in 2000 to 5·0 million (4·3–6·0) in 2019. Global population increased by 25·7%, from 6·2 billion (6·0–6·3) in 2000 to 7·7 billion (7·5–8·0) in 2019. …"
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658
Mapping geographical inequalities in access to drinking water and sanitation facilities in low-income and middle-income countries, 2000–17
منشور في 2020"…For sewer or septic sanitation, access was 46·3% (95% UI 46·1–46·5) in 2017, compared with 28·7% (28·5–29·0) in 2000. …"
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659
How global spine sagittal alignment and spinal degeneration affect locomotive syndrome risk in the elderly
منشور في 2024"…</p><h3>Methods</h3><p dir="ltr">The study enrolled 232 subjects, evaluated using plain radiographs. …"
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660