Thermodynamics for Trajectories of a Mass Point

On the basis of information theory, a new formalism of classical non-relativistic mechanics of a mass point is proposed. The particle trajectories of a general dynamical system defined on an (1+n)-dimensional smooth manifold are treated geometrically as dynamical variables. Statistical mechanics of particle trajectories are constructed in a classical manner. Thermodynamic variables are introduced through a partition function based on a canonical ensemble of trajectories. Within this theoretical framework, classical mechanics can be interpreted as an equilibrium state of statistical mechanics. The relationships between classical and quantum mechanics are discussed from this statistical mechanical viewpoint. The maximum entropy principle is shown to provide a unified view of both classical and quantum mechanics.Comment: 22 pages, 1 figur

The Inna

1st Prize Winner Inspired by the people and culture of Mali. What inspired you to enter this special competition to create a modern architectural language for Africa? African architecture always inspired me with amazing earthen architecture throughout the continent. This competition is a valuable chance for me to study and understand more about the architecture of the continent, it is also a chance for me to express my ideas about modern architectural language for Africa. What did you find most interesting or challenging during the research and development of your prototype? The most interesting is when researching for an image that represents the artistic identity of a country or an ethnic group. The process was amazing and felt like I was having a tour of the continent. Seeing so many surprising images and local building techniques inspired me a lot with the design. The most challenging part is the climate of Africa is very diverse; hence, choosing a climatic zone to study is quite difficult. Why do you believe African homeowners will be interested in building a home such as the one you have submitted today? Not only the African homeowners but also homeowners from everywhere in the world will have common consideration in choosing a place to live which is: affordable, high quality living standard, aesthetically attractive, and low cost for running and maintenance. Hence, I use these as my goal for the design. When design meets these requirements, there is no doubt that homeowners will interested in building that house

Factors Influencing Adoption of Online Payment via E-Commerce Platforms

In this study, the research group applied the Technology Acceptance Model (TAM) by Davis (1989) to analyze factors influencing customers’ intention to use the online payment via e-commerce platforms as well as to encourage Vietnamese consumers to adapt this means of payment. Besides Perceived Ease of Use and Perceived Usefulness in the original model of Davis (1989), three additional dependent factors (Subjective Norm, Trust, Risk) were added to the model. The new model proposed by the research group aims to give a more well-rounded explanation on Vietnamese consumers’ attitude and intention towards the online payment. Using sample data including 448 consumers in the Northern region of Vietnam, the research group has been able to validate the hypothesis model and prove that independent and dependent variables (Attitude towards Use and Intention to Use) are positively correlated. Among the 5 dependent variables, Subjective Norm is found to be the most significant factor contributing to promote online payment attitude and intention through e-commerce websites of Vietnamese consumers. Keywords: TAM, online payment, online shopping, e-commerce DOI: 10.7176/EJBM/13-8-19 Publication date: April 30th 202

Integrating Ecological Lifestyle Education into Teaching Citizen Education at Secondary School in Vietnam - A Content Perspective

Ecological lifestyle and ecological lifestyle education for students has recently been a concerned issue as unsustainable development leads to countless negative effects on the environment. Based on document analysis and theoretical framework, the author aims at generalizing several theories of ecological lifestyle, ecological lifestyle education and proposing certain contents of ecological lifestyle that can be integrated into teaching the Citizen Education subject at Junior Secondary School in Viet Nam for both the current curriculum and the new curriculum applied from 2018. The practical significance of this research paper is to propose teaching contents for integrating ecological lifestyle together with lists of textbook sessions suitable for integrating these contents in the current curriculum and the 2018 curriculum. These are valuable suggestions for teachers during organizing teaching activities

Studying Political Theory Subjects Using Flipped Classroom Model - Assessment from Gen-Z Students

Political Theory subjects play critical roles in Vietnam’s society in the current context of the 4th Industrial Revolution, globalization and information explosion. Particularly, the recent decade has welcomed the emergence of a new generation of university students - generation Z, with distinctive characteristics compared to previous generations, that is: activeness, creativity, adaptability, and familiarity with technology. Therefore, it is inevitable to innovate the methods of teaching with Political Theory subjects to keep pace with these developments in education. The flipped classroom model has so far been implemented in teaching the Political Theory Subjects in several universities. This study is designed based on the flipped classroom model, employing questionnaires with a 5-point Likert scale for 648 students at Hanoi National University of Education. The data collected was analyzed with SPSS 20.0 software. Open-ended questions are also included in the questionnaire to gather a variety of personal viewpoints. Besides, the research method of interview was applied with 30 students. The study aims to clarify gen-Z students’ judgment of using the flipped classroom model in teaching Political Theory subjects. Furthermore, the author sheds light on the suitability and effectiveness of the very teaching model as a basis for its future application

Chemical composition and antibacterial activities of the ethanol extracts from the leaves and tubers of Amorphophallus pusillus

Amorphophallus pusillus is a rare species which is found only in Binh Chau-Phuoc Buu Nature Reserve. In this study, we determined 7 flavonoid compounds in tuber and leaf of A. pusillus, including of vitexin, orientin, vitexin 2?-O-glucoside, cyanidin 3-O-rutinoside, pelargonidin 3-O-glucoside, schaftoside, and peonidin 3-O-rutinoside via liquid chromatography-mass spectrometry (LC-MS). Furthermore, we have proved the antibacterial activities of ethanol extracts obtained from A. pusillus leaves and tubers in the first time. The data revealed that ethanol extracts could inhibit the growth of 6 tested microorganisms, such as Bacillus cereus, Escherichia coli, Pseudomonas aeruginosa, Salmonella enteritidis, Salmonella typhimurium, and Staphylococcus aureus. These data suggested the potential application of ethanol extracts isolated from this species as natural antimicrobial agents for treatment of infection caused by bacteria, especially in dermatologic and enteric infections

Efficacy and Toxicity of Folfoxiri for Patients with Metastatic Colorectal Cancer

BACKGROUND: In recent times, scientists have found new treatments for colorectal cancer patients. AIM: The study is to evaluate the efficacy and toxicity of triplet combination chemotherapy of 5-fluorouracil/leucovorin, oxaliplatin, and irinotecan (FOLFOXIRI) for patients with metastatic colorectal cancer in stage IV. METHODS: Uncontrolled clinical trial carried on 39 stage IV colorectal cancer patients. RESULTS: The overall response rate of the treatment was 79.4%. The average progression-free survival was 13.4 ± 9 months. The overall survival rate at 12th month and 24th month were 90% and 76%, respectively. The proportion of granulocytopenia was 48.9%, no grade 3 or 4. Side effect beyond hematology was most seen in hepatic toxicity with 52.5%, mainly at grade 1. Vomiting was 18.3%, all at grade 1. Other adverse event was very low at percentage. CONCLUSIONS: The triplet combination FOLFOXIRI chemotherapy improves the outcome of patients with metastatic colorectal cancer regarding rate of response, overall survival rate and progression-free survival, and the level of toxicity was acceptable

Chemical components and biological properties from acetone extracts of Conamomum vietnamense

Conamomum vietnamense is an endemic and rare species from Vietnam. The aim of this study is to determine the chemical compositions, antibacterial and antioxidant properties of the acetone extracts obtained from the different organs of this species for the first time. A total of 82 components were identified from the acetone extracts of leaf, flower, and rhizome of C. vietnamense using Gas chromatography–mass spectrometry (GC/MS) technique. Furthermore, the agar disk-diffusion method was also used to determine the antibacterial activity of the C. vietnamense extracts. Accordingly, the leaf extract was found to be effective against eight out of nine bacterial strains while the flower and rhizome extracts displayed activity against four out of nine tested bacteria. In addition, the three organs of C. vietnamense also possessed the high DPPH scavenging properties. The results of this study indicate that C. vietnamense extracts have the potential to be developed into pharmaceutical products in the future