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    Wyświetlanie 1-7 z 7
    Tytuł:
    Survival outcome and prognostic factors in patients with chemotherapy-naive metastatic castration-resistant prostate cancer treated with abiraterone acetate – real-world experience in Vietnam
    Autorzy:
    Do, Tu Anh
    Nguyen, Thai Hoa Thi
    Nguyen, Hau Xuan
    Nguyen, Loi Dinh
    Nguyen, Chu Van
    Powiązania:
    https://bibliotekanauki.pl/articles/40555372.pdf
    Data publikacji:
    2024-06-30
    Wydawca:
    Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
    Tematy:
    abiraterone acetate
    metastatic castration-resistant prostate cancer
    overall survival
    real-world evidence
    Opis:
    Introduction and aim. In real life, metastatic castration-resistant prostate cancer patients (mCRPC) had more complex clinical presentation than patients in the COU-AA-302 trial. This study primarily aimed to describe the overall survival of chemotherapy-naive mCRPC treated with abiraterone acetate plus prednisone (AAP). Other relevant outcomes and baseline characteristics of these patients were also evaluated. Material and methods. This retrospective, observational study collected data from chemotherapy-naive mCRPC patients treated with AAP in Vietnam. Kaplan-Meier curves were used to estimate time to treatment failure (TTF), and overall survival (OS). The impact of baseline characteristics on OS was explored using univariate and multivariate Cox proportional hazard models. Results. Data from 65 eligible patients were analyzed. The rate of PSA response was 73.8%, median PSA PFS was 10.5 months (95% CI: 7.4–13.6), median TTF was 15 months (95% CI: 11.1–18.9), and median OS was 24.9 months (95% CI: 18.9–30.9). Shorter OS was significantly associated with a higher Gleason score (≥8), shorter time from ADT start to mCRPC (<12 months), visceral metastases, and <50% PSA decline (p<0.05). Conclusion. Abiraterone acetate plus prednisone is well tolerated and effective for chemotherapy-naive mCRPC patients in clinical practice. Moreover, Gleason score, visceral metastasis, time from ADT start to mCRPC, and PSA response are the independent indicators for predicting the OS of mCRPC patients in both univariate and multivariate analyses.
    Źródło:
    European Journal of Clinical and Experimental Medicine; 2024, 22, 2; 262-269
    2544-2406
    2544-1361
    Pojawia się w:
    European Journal of Clinical and Experimental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design and performance analysis of a mechanically coupled spring compliant to out-of-plane oscillation
    Autorzy:
    Nguyen, Duong Van
    Nguyen, Chien Quoc
    Dang, Hieu Van
    Chu, Hoang Manh
    Powiązania:
    https://bibliotekanauki.pl/articles/27309868.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    coupled spring
    mode coupling
    serpentine spring
    Sigitta spring theory
    finite element
    method
    sprzężenie trybów
    element końcowy
    metoda
    Opis:
    In this paper, a spring system symmetrically arranged around a circular plate compliant to out-of-plane oscillation is proposed. The spring system consists of single serpentine springs mutually coupled in a plane. Three theoretical mechanical models for evaluating the stiffness of the spring system are built, which are based on the flexural beam, Sigitta, and serpentine spring theories and equivalent mechanical spring structure models. The theoretically calculated results are in good agreement with numerical solutions using the finite element method, with errors less than 10% in the appropriate dimension ranges of the spring. Compared to similar spring structures without mechanical coupling, the proposed mechanically coupled spring shows advantage in suppressing the mode coupling.
    Źródło:
    Archive of Mechanical Engineering; 2022, LXIX, 4; 629--643
    0004-0738
    Pojawia się w:
    Archive of Mechanical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Performance analysis of serpentine springs compliant to out-of-plane oscillation
    Autorzy:
    Duong, Nguyen Van
    Chien, Nguyen Quoc
    Hieu, Dang Van
    Hoang, Chu Manh
    Powiązania:
    https://bibliotekanauki.pl/articles/2086964.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    serpentine spring
    out-of-plane oscillation
    curved spring beam
    straight spring beam
    mode coupling
    Opis:
    The performance of two serpentine type springs is comparatively investigated. The first type is composed of straight beams and the second one is composed of circular arcs. Based on comparing calculation results and simulation data, the crab-leg spring model is appropriate for evaluating the stiffness of springs. To obtain the operation mode to be the first mode, the number of turns and the opening angle of springs should be increased. The performance of springs is evaluated via analysis of mode coupling. This study is useful for choosing an appropriate serpentine spring and the stiffness calculation model for applications in microelectroemchanical sensors and actuators.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2022, 60, 1; 91--101
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Building a Digital Society to Enhance the Efficiency of National Governance in Vietnam
    Autorzy:
    Nguyen, Quynh Nga
    Chu, Thi Khanh Ly
    Nguyen, Van Hau
    Powiązania:
    https://bibliotekanauki.pl/articles/27323275.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Przeróbki Kopalin
    Tematy:
    digital society
    digital citizen rights
    digital lifestyle
    digital commerce
    national governance
    społeczeństwo cyfrowe
    styl życia
    Wietnam
    Opis:
    The Fourth Industrial Revolution, especially the digital technology, has been rapidly transforming all aspects of social life, driving a powerful process of digital transformation across all fields. The digital transformation program in Vietnam identifies the digital society as one of the three fundamental pillars, encompassing changes in the way social interactions and connections shift from traditional methods to digital connections through modern technology and communication infrastructure. Alongside the numerous positive aspects, the process of building a digital society also presents significant challenges for each country in managing issues related to ensuring digital citizen rights, establishing digital lifestyle standards, and ensuring fairness in digital commerce. In this study, we will: (1) Clarify the concept and characteristics of the digital society; (2) Explore the current status of building a digital society in Vietnam; (3) Analyze some barriers to the digital society construction; (4) Propose some recommendations for enhancing the effectiveness of national governance in Vietnam today.
    Źródło:
    Inżynieria Mineralna; 2023, 2; 195--202
    1640-4920
    Pojawia się w:
    Inżynieria Mineralna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Current Status of Coal Mining and Some Highlights in the 2030 Development Plan of Coal Industry in Vietnam
    Autorzy:
    Nguyen, Quynh Nga
    Nguyen, Van Hau
    Pham, Tu Phuong
    Chu, Thi Khanh Ly
    Powiązania:
    https://bibliotekanauki.pl/articles/2020194.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Przeróbki Kopalin
    Tematy:
    coal mining
    development plan
    mining technology
    environmental protection
    górnictwo
    plan rozwoju
    technologia
    ochrona środowiska
    Opis:
    Coal mining is one of the key mining industries in Vietnam. Coal is also an important fuel for many other industries. Currently, coal mining is mainly concentrated in Quang Ninh coal basin, the proportion of open-pit coal mining and underground mining is quite similar. However, according to Decision 403/QD-Ttg on approving the adjustment of the Vietnam coal industry development plan up to 2020, considering the prospects by 2030, the mining output will be from 51 to 54 million tons by year 2025 and from 55 to 57 million tons by 2030. In which, the proportion of underground coal mining will increase gradually compared with that of open-cast mining, specifically, by 2030, the proportion of the later compared to that of the former will be only 11%. According to this plan, open-pit coal mines have been shifting to underground mining technology, due to the increasingly deep conditions of coal seams. The following article will analyze the current status of coal mining in Vietnam and some highlights of the coal industry development plan to 2030, in order to provide a general picture of Vietnam’s coal industry in the future.
    Źródło:
    Inżynieria Mineralna; 2021, 2; 373--380
    1640-4920
    Pojawia się w:
    Inżynieria Mineralna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Developing Electronic Government Towards Digital Government to Enhance the Efficiency of State Governance in Vietnam
    Autorzy:
    Chu, Thi Khanh Ly
    Nguyen, Nga Quynh
    Nguyen, Hau Van
    Tran, Thi Huong Huc
    Powiązania:
    https://bibliotekanauki.pl/articles/27323237.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Przeróbki Kopalin
    Tematy:
    electronic government
    digital government
    online public services
    e-urząd
    usługi publiczne
    cyfryzacja
    Opis:
    The development of an electronic government, aiming for a digital government to effectively manage the state and contribute to the convenience of citizens and businesses, is both a crucial aspect of the comprehensive administrative reform program for the period 2021-2030 and an essential global trend for all countries, including Vietnam. This article discusses various topics: general issues related to electronic government and digital government, the current situation of electronic government development in Vietnam, challenges faced in the process of developing electronic government towards a digital government in Vietnam, and some solutions to enhance the effectiveness of electronic government development towards a digital government in Vietnam.
    Źródło:
    Inżynieria Mineralna; 2023, 2; 131--136
    1640-4920
    Pojawia się w:
    Inżynieria Mineralna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temporal and spatial heterogeneity of the Ailaoshan–Song Ma–Song Chay ophiolitic mélange, and its significance on the evolution of Paleo-Tethys
    Autorzy:
    Lin, Wei
    Liu, Fei
    Wang, Ying
    Meng, Lingtong
    Faure, Michel
    Chu, Yang
    Nguyen, Vuong Van
    Wu, Qinying
    We, Wei
    Thu, Hoai Luong Thi
    Vu, Tich Van
    Powiązania:
    https://bibliotekanauki.pl/articles/24202127.pdf
    Data publikacji:
    2023
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    Tethys
    heterogeneity
    Vietnam
    Opis:
    The ophiolite is the direct evidence to restore the oceanic evolution, and it is used to identify the convergence boundary of the plates. Compared with ophiolite, ophiolitic mélange, especially its matrix, contains more information about the evolution of ocean. The evolution of eastern Paleo-Tethys, between the South China and Indochina blocks, recorded the whole process of rifting from Gondwana and their northward migration and convergence. To understand the tectonic implications from matrix of ophiolitic mélange, the Mesozoic Paleo-Tethys Ailaoshan–Song Ma–Song Chay suture zone located in the North Vietnam–Southeast Yunnan region acts as an ideal study area. Based on the structural geology, we reviewed previous zircon U-Pb dating and Lu-Hf isotopic analyses on the detrital zircon from the Ailaoshan–Song Ma–Song Chay ophiolitic mélange. Accordingly, we subdivide the matrix of these ophiolitic mélange into four parts (M1, M2, M3, and M4; Fig. 1). M1 is mainly located in the middle segment of the Ailaoshan–Song Ma belt. It shows age peaks of 440 Ma and 960 Ma with εHf(t) values of −19.6 ~ +10.3. M2 is mainly located in the NW segment of the Ailaoshan–Song Ma belt, showing a dominant age peak of ~260 Ma. Particularly, it has εHf(t) values of −28.9 ~ +8.1. M3 is mainly located in the SE segment of the Ailaoshan–Song Ma belt, showing the peaks at ~250 Ma, 440 Ma, and 960 Ma with εHf(t) values of −21.9 ~ +10.1. M4 is mainly located in the Song Chay belt, showing the peaks at ~310 Ma, 470 Ma, 610 Ma, 770 Ma, and 965 Ma with εHf(t) values of −28.2 ~ +10.8. The geochronological data of the detrital zircon from the matrix of the Ailaoshan– Song Ma–Song Chay ophiolitic mélange zone, documents a temporal heterogeneity between the M1, M2, M3, and M4 units, which formed at 310–270 Ma, 265–250 Ma, 245–240 Ma, and 310–255 Ma, respectively. The different components and provenances of each unit reflect a strike-parallel heterogeneity (Fig. 1). The M1 unit was mainly sourced from the Paleozoic sedimentary rocks of the Indochina Block (IB). The main provenance for the M2 unit is Emeishan Large Igneous Province (ELIP). The magmatic arc developed in the IB provided the materials for the M3 unit, and the detrital materials of the M4 were mainly sourced from the South China Block (SCB) (Fig. 1). The Cenozoic strike-slip deformation led to an inverted geometry of the M1, M2, and M3 units, accounting for a strike-perpendicular heterogeneity straight to the strike of the orogenic belt. The temporal, strike-parallel, and strike-perpendicular heterogeneity help us to decipher the tempo-spatial evolution of the Paleo-Tethys. The M1, M2, M3, and M4 units contain information from different evolutionary stages, likely recording the comprehensive history of the ancient oceanic basin. Importantly, our results demonstrate that both the active continental margin of the IB and the passive continental margin of the SCB acted as provenance sources that supplied significant amount of detrital material in the ophiolitic mélange matrix, indicating that the Paleo-Tethys Ocean was a “narrow” or “limited” ocean rather than the archipelagic ocean proposed before.
    Źródło:
    Geotourism / Geoturystyka; 2023, 1-2 (72-73); 42--43
    1731-0830
    Pojawia się w:
    Geotourism / Geoturystyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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