4,858 research outputs found
Random matrices and random boxes
No full textThis thesis concerns two questions on random structures: the semi-circular law for adjacency matrix of regular random graph and the piercing number for random boxes. Random matrices: We proved in full generality the semi-circular law for random d-regular graph model in the case d tends to infinity as n does. Our result complements the McKay law [19], which applied for the case d is an absolute constant. Random boxes. Take n random boxes with axis-parallel edges inside the unit cube [0; 1][superscript]d, the piercing number is the minimum number of points needed to pierce all boxes. Using hypergraph setting, we was able to prove a near sharp estimation for the piercing number. This thesis is based on two papers by the author [31] and [30] (joint work with Van Vu and Ke Wang).Ph.D.Includes bibliographical referencesIncludes vitaby Linh V. Tra
Chatbot application to improve companies’ competitiveness in tourism sectors
No full textChatbots can be used effectively to raise the competitiveness of tourism organizations and companies. The purpose of the research is offering best practices of adoption chatbots to companies in tourism factors. The research aims to observe the chatbots’ adoption in tourism sectors in hope of strengthening companies’ competitiveness and providing recommendation for better chatbots implementation in tourism. In previous research, the authors investigate chatbots performances in tourism’s business by assessment of each respective case study. Therefore, the big insights of objective phenomena or events are not analysed carefully. To fill this gap, the author examines chatbot’s adoption in more generated context. The methodology to conduct the study is qualitative method with semi-structured interviews associating with 6 experts in IT and Tourism. The inductive reasoning approach with explorer purpose helps to collect data to answer research questions and achieve thesis’s aim. The conclusion of the research offers the best practice for tourism practitioners and service providers into chatbots implementation for driving revenue and elevation of customer’s number
complex ARR1-AHP1
No full textThis deposit contains (i) diffraction images of the crystal of protein complex ARR1-AHP1 (ii) XDS processed data and (iii) STARANISO anisotropic truncation data</p
sj-docx-1-npx-10.1177_1934578X231167289 - Supplemental material for Integrating in Silico and In Vitro Studies to Screen Anti-<i>Staphylococcus aureus</i> Activity From Vietnamese <i>Ganoderma multiplicatum</i> and <i>Ganoderma sinense</i>
No full textSupplemental material, sj-docx-1-npx-10.1177_1934578X231167289 for Integrating in Silico and In Vitro Studies to Screen Anti-Staphylococcus aureus Activity From Vietnamese Ganoderma multiplicatum and Ganoderma sinense by Trang Thi Thu Nguyen, Trinh Thi Tuyet Nguyen, Hoang Duc Nguyen, Tan Khanh Nguyen, Phu Tran Vinh Pham, Linh Thuoc Tran, Linh Thuy Thi Tran and Manh Hung Tran in Natural Product Communications</p
Reaching a Consensus on Random Networks: The Power of Few
No full textA community of n individuals splits into two camps, Red and Blue. The individuals are connected by a social network, which influences their colors. Everyday, each person changes his/her color according to the majority of his/her neighbors. Red (Blue) wins if everyone in the community becomes Red (Blue) at some point.
We study this process when the underlying network is the random Erdos-Renyi graph G(n, p). With a balanced initial state (n/2 persons in each camp), it is clear that each color wins with the same probability.
Our study reveals that for any constants p and ε, there is a constant c such that if one camp has n/2 + c individuals at the initial state, then it wins with probability at least 1 - ε. The surprising fact here is that c does not depend on n, the population of the community. When p = 1/2 and ε = .1, one can set c = 6, meaning one camp has n/2 + 6 members initially. In other words, it takes only 6 extra people to win an election with overwhelming odds. We also generalize the result to p = p_n = o(1) in a separate paper
The role of mental imagery, dysfunctional attitudes and perfectionism in mood elevation in bipolar disorders
No full textAims: previous studies have looked at how mental imagery, dysfunctional attitudes and perfectionism contributed to hypomanic/manic symptoms in bipolar disorders (BD). This study explored whether positive mental imagery induced higher mood changes in people with BD and whether risks of BD, general use of imagery, perceived vividness of imagery, dysfunctional attitudes and perfectionism positively predicted mood changes after generating positive imagery.Methods: participants (23 participants with BD and 58 controls) completed a questionnaire, which included the Mood Disorder Questionnaire, Hypomanic Personality Scale, Dysfunctional Attitudes Scale, Multidimensional Perfectionism Scale, Spontaneous Use of Imagery and a single-item vividness measure. A positive imagery task (PIT) guided participants to generate positive mental imagery. Participants’ mood and activation were measured both before and after the PIT.Results: the BD group experienced higher activation than the control group. Both groups experienced no difference in mood and lower activation after the PIT. After controlling for measures at baseline, higher risks of BD and lower levels of dysfunctional attitudes predicted higher post-PIT mood; higher general use of imagery predicted higher post-PIT activation. Vividness and perfectionism did not predict either mood or activation.Conclusion: positive mental imagery does not amplify high mood. Risks of BD, general use of imagery and dysfunctional attitudes predict mood changes after positive imagery generation. These findings contribute to the understanding of BD and the application of psychotherapies for BD. Further investigations should be conducted to address the limitations of this study
The role of mental imagery, dysfunctional attitudes and perfectionism in mood elevation in bipolar disorders
No full textsj-docx-1-npx-10.1177_1934578X231175263 - Supplemental material for Phytochemical Composition and Bioactivities of Essential Oils from Rhizomes of <i>Homalomena pendula</i> and <i>Homalomena cochinchinensis</i>
No full textSupplemental material, sj-docx-1-npx-10.1177_1934578X231175263 for Phytochemical Composition and Bioactivities of Essential Oils from Rhizomes of Homalomena pendula and Homalomena cochinchinensis by Linh Thuy Khanh Nguyen, Tuan Quoc Doan and
Phu Quynh Dinh Nguyen, Chau Bao Hoai Nguyen, Linh Thuy Thi Tran, Thi Van Anh Tran, Hoai Thi Nguyen, Duc Viet Ho in Natural Product Communications</p
sj-docx-1-npx-10.1177_1934578X231168481 - Supplemental material for Volatile Components and Biological Activities of <i>n</i>-Hexane Extract From Rhizomes of <i>Homalomena cochinchinensis</i>
No full textSupplemental material, sj-docx-1-npx-10.1177_1934578X231168481 for Volatile Components and Biological Activities of n-Hexane Extract From Rhizomes of Homalomena cochinchinensis by Linh Thuy Khanh Nguyen, Phu Quynh Dinh Nguyen, Nghia Ai Thi Doan, Chau Bao Hoai Nguyen, Tuan Quoc Doan, Linh Thuy Thi Tran, Hoai Thi Nguyen and Duc Viet Ho in Natural Product Communications</p
Data for: Practical artificial neural network tool for predicting the axial compression capacity of circular concrete-filled steel tube columns with ultra-high-strength concrete
No full textDatabase for developing the proposed ANN model and Graphical User Interface (GUI) tool
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