2,042,588 research outputs found
Oral History of Hieu Nhu Nguyen
No full textThe name of my narrator is Hieu Nhu Nguyen. He was born on September 25, 1984, in Hue, Vietnam. To come to America, his family had to move to Saigon to process paperwork. Then they moved to the Philippines and lived there for almost a year before moving to America in 1993. Hieu went to high school at Santiago High in Garden Grove, CA. He graduated from UC Irvine with a degree in Psychology. Hieu talked to me about his family life, his coming out story, and his connection with Viet Rainbow of Orange County. Hieu has six sisters, one brother, a mother, and a father. He met his current partner in 2011, and they have been together for eight years. Hieu currently lives in Garden Grove, and he is working as a licensed social worker. He is also a part of the Asian Pacific AIDS Intervention Team and has a private practice serving patients within the LGBTQIA+ community. In addition to this, he is also chair of the nonprofit Viet Rainbow of Orange County.Recorded digitall
A convergent relaxation of the Douglas–Rachford algorithm
No full textThis paper proposes an algorithm for solving structured optimization problems, which covers both the backward–backward and the Douglas–Rachford algorithms as special cases, and analyzes its convergence. The set of fixed points of the corresponding operator is characterized in several cases. Convergence criteria of the algorithm in terms of general fixed point iterations are established. When applied to nonconvex feasibility including potentially inconsistent problems, we prove local linear convergence results under mild assumptions on regularity of individual sets and of the collection of sets. In this special case, we refine known linear convergence criteria for the Douglas–Rachford (DR) algorithm. As a consequence, for feasibility problem with one of the sets being affine, we establish criteria for linear and sublinear convergence of convex combinations of the alternating projection and the DR methods. These results seem to be new. We also demonstrate the seemingly improved numerical performance of this algorithm compared to the RAAR algorithm for both consistent and inconsistent sparse feasibility problems.Team Raf Van de Pla
sj-docx-1-npx-10.1177_1934578X241232281 - Supplemental material for Essential Oils of Two Species of Zingiberaceae Family from Vietnam: Chemical Compositions and <i>α</i>-Glucosidase, <i>α</i>-Amylase Inhibitory Effects
No full textSupplemental material, sj-docx-1-npx-10.1177_1934578X241232281 for Essential Oils of Two Species of Zingiberaceae Family from Vietnam: Chemical Compositions and α-Glucosidase, α-Amylase Inhibitory Effects by Hieu Tran-Trung, Duc Giang Le, Van Trung Hoang, Danh C. Vu, Tran Dinh Thang, Hieu Nguyen-Ngoc, Chen Tran Van, Thanh Triet Nguyen, Nguyen Hoang Tuan and Trang H.D. Nguyen in Natural Product Communications</p
Learners’ attitudes towards blended learning at Nguyen Tat Thanh University
No full text7 p.In many educational settings accross the world, including Viet Nam, blended learning has grown quickly due to evidence of its benefits over traditional classroom or online instruction alone. The study examined the attitudes of students at Nguyen Tat Thanh University toward the existing English blended learning course with the overall goal of enhancing the quality of language teaching and learning. A total of 367 students non-majoring in English language participated in the survey conducted at Nguyen Tat Thanh University in Ho Chi Minh City, Viet Nam. The 44-item survey was used to collect the data, and SPSS version 20.0 was used for statistical analysis. The results demonstrated that most students had very positive sentiments towards four factors: the course's overall quality, the quality of the instructors, the course material, and the supportive services. However, a few students expressed dissatisfaction with the technology system, as they frequently encounter technical issues when engaging in online learning outside of the classroom
Okinawepipona yty , Nguyen 2018
No full text<i>Okinawepipona yty</i> Nguyen, 2018 <p>Figs. 1–7</p> <p> <i>Okinawepipona yty</i> Nguyen, 2018: 592, 596 (key), female – “Y Ty, Bat Xat, Lao Cai ” (IEBR).</p> <p> The male specimens we examined are from the type locality and agree well with the description by Nguyen <i>et al</i>. (2018). As described below, the male is similar to the female both in structure and coloration except for some few characters.</p> <p> <b>Material examined.</b> VIETNAM: <b>Lao Cai:</b> 12 ♀, 16 ♁, Y Ty, Bat Xat, 22°36′29.5″N 103°37′29.6″E, alt. 1869 m, 6 May 2019, Nguyen Quang Cuong leg.; 3 ♁, Y Ty, Bat Xat, 22°37′14.5″N 103°37′25.5″E, alt. 1850 m, 15 July 2023, Nguyen Thi Phuong Lien, Nguyen Quang Cuong leg. [IEBR]</p> <p> <b>Description.</b> <i>Male</i> (Fig. 4) [female characters in square brackets]. Body length 11–12 mm; forewing length 11–12 mm. Head in frontal view subcircular, wider than high, about 1.2× as wide as high [1.1× as wide as high] (Fig. 1). Vertex without cephalic foveae [with cephalic foveae small, bearing dense pubescence, situated very close to each other, almost touching each other] (Fig. 2). Distance from posterior ocellus to apical margin of vertex nearly 1.6× distance from posterior ocellus to inner compound eye margin [more than 1.7× distance from posterior ocellus to inner compound eye margin] (Fig. 2). Gena slightly narrower than compound eye, in lateral view about 0.9× as wide as compound eye [much narrower than compound eye, in lateral view about 0.7× as wide as compound eye]. Occipital carina complete, present along entire length of gena, but dorsally somewhat weak. Inner compound eye margins strongly converging ventrally; in frontal view about 1.8× further apart from each other at vertex than at clypeus [1.3× further apart from each other at vertex than at clypeus]. Disc of clypeus in lateral view weakly convex at basal half, then straight to near apical margin; in frontal view 1.3× higher than wide [about as wide as high] (Fig. 1), with basal margin almost straight [slightly convex medially] and distinctly separated from antennal sockets; apical margin deeply emarginate medially, forming very sharp tooth on each lateral side [forming sharp tooth on each lateral side] (Fig. 1), without carina [with two faint carinae running from tooth at apical point to base direction]; width of emargination slightly greater than 1/3 width of clypeus between inner compound eye margins [width of emargination slightly less than 1/3 width of clypeus between inner compound eye margins]. Mandible with prominent teeth, second and third teeth with inner side almost straight [second and third teeth with inner side produced with round margin], fourth tooth pointed apically. Antennal scape about 3.3× as long as its maximum width [about 3.7× as long as its maximum width]; flagellomere I about 1.8× as long as wide [about 1.5× as long as wide], flagellomeres II and III slightly longer than wide [flagellomere III as wide as long], flagellomere IV as wide as long, flagellomeres V–IX wider than long, terminal flagellomere small, slightly curved, 3.5× as long as its basal width, reaching to near base of flagellomere IX when folded [terminal flagellomere bullet-shaped, as long as its basal width] (Fig. 3).</p> <p>Mesosoma, metasoma (except tergum VII and sternum VII), and body sculpture as same as in female except clypeus with dense, small, deep punctures [clypeus with dense, large, flat-bottomed punctures, each bearing silver bristle, punctures at center larger than at sides, space between punctures larger than puncture diameter]. Tergum VII and sternum VII with some small and sparse punctures come between minute punctures.</p> <p> <i>Color</i>. Black; similar to female except clypeus almost entirely yellow [large spots on upper lateral corner and a large spot on lower middle of clypeus]; head black [narrow band along inner compound eye margin extending from bottom of frons nearly to ocular sinus, large spot between antennal sockets].</p> <p> <i>Genitalia</i>. As in Figs. 5–7. Parameral spine lacking setae. Volsella flattened, spatulate, wide on inner aspect, and without setae at top (Fig. 5). Digitus knife-shaped, almost parallel at one-third from base, then gradually narrowing to top, with medium long setae on outer margin (Fig. 5). Penis valves of aedeagus long, about 1.6× as long as basal apodeme, in ventral view proximal part produced laterally into a round lobe laterally with blunt apex in inner margin apically (Fig. 6); in profile apical part produced into a round projection (Fig. 7); dorsal rod of aedeagus shorter than basal apodeme apically (Fig. 7).</p> <p> <b>Distribution.</b> Vietnam (Lao Cai).</p>Published as part of <i>Nguyen, Hieu Van, Nguyen, Manh Thanh & Nguyen, Lien Thi Phuong, 2024, Discovery of the male of Okinawepipona yty Nguyen, 2018 (Hymenoptera: Vespidae: Eumeninae) from Vietnam, pp. 79-84 in Zootaxa 5399 (1)</i> on page 80, DOI: 10.11646/zootaxa.5399.1.6, <a href="http://zenodo.org/record/10494478">http://zenodo.org/record/10494478</a>
Oral History of Nguyen Ly
No full textAn oral history with Mr. Nguyen Ly, born in 1970 in Saigon, Vietnam. He grew up ethnic Chinese as a son of a tailor and his wife. He was the second son of four children. Growing up, he took drawing classes, and his siblings did other artistic activities as well. He lived in Saigon until he and his family escaped via boat to Malaysia in 1978. He and his family stayed in the camp until an uncle and a church sponsored them. In 1979, he and his family moved to the San Gabriel Valley in Southern California. There they stayed until Nguyen graduated high school and went to Cal Poly Pomona where he earned his degree in graphic design. In 1992, Nguyen received his U.S. citizenship and changed his name to Charles. After graduating with his degree from Cal Poly Pomona, Nguyen went to Rome, Italy to paint a fresco with about 40 other artists. Following that he worked at his family’s restaurant. Nguyen entered the master’s program at Cal State Fullerton in printmaking in 1998. There, he started his job at the local library, which he still has to this day. In 2011, he joined the printmaking collective, Los de Abajo and continually competes and creates art with the collective. He is married with no children and currently resides in Whittier, CA.Recorded Digitall
마이크로 임플란트를 이용한 상악골 확장장치 사용 후 중안모의 연조직 변화
No full textBACKGROUND AND OBJECTIVES: This study aimed to assess the mid-facial soft tissue changes following maxillary expansion using micro-implant-supported maxillary skeletal expanders (MSE) in young adults by cone-beam computerized tomography and to evaluate the correlations between hard and soft tissue changes after MSE.
MATERIALS AND METHODS: Twenty patients (mean age, 22.4 years: range, 17.6-27.1) with maxillary transverse deficiency treated with MSE were selected. Mean expansion amount was 6.5 mm. Cone-beam computerized tomography images taken before and after expansion were superimposed to measure the changes in soft and hard tissue landmarks. Statistical analyses were performed using paired t-test and Pearson’s correlation analysis according to the normality of data.
RESULTS: Average lateral movement of the cheek points was 1.35 mm (right) and 1.08 mm (left), and those of the alar curvature points was 1.03 (right) and 1.02 mm (left) (p < 0.05). Average forward displacement of the cheek points was 0.59 mm (right) and 0.44 mm (left), and those of the alar curvature points was 0.61 mm (right) and 0.77 mm (left) (p < 0.05). Anterior nasal spine (ANS), posterior nasal spine (PNS), and alveolar bone width were significantly increased (p < 0.05). The changes in cheek and alar curvature points on both sides significantly correlated with hard tissue changes (p < 0.05).
CONCLUSIONS: Maxillary expansion using MSE resulted in significant lateral and forward movements of the soft tissues of the cheek and alar curvature points on both sides in young adults, and correlated with maxillary suture opening at the ANS and PNS.연구 목적: 본 후향적 연구의 목적은 젊은 성인의 미니 스크류를 이용한 상악 골격 확장 장치(MSE)를 사용하여 상악 확장 후 중안모 연조직 변화를 Cone beam computed tomography (CBCT)로평가하여 경조직과 연조직 변화의 상관관계를 평가 하고자 하였다.
연구 재료 및 방법: 상악 횡적 폭경이 부족하여 MSE로 치료한 20명의 환자군을 선택하였음.(평균 연령 : 22.4세, 범위 : 17.6-27.1). 평균 확장량은 6.5 mm 였다. 연조직과 경조직 계측점의 변화를 측정하기 위해 확장 전후에 촬영한 CBCT 이미지를 중첩하였다. 통계적 분석은 데이터 정규성에 따라 paired t-test와 Pearson의 상관 관계 분석을 사용하였다.
결과: Cheek point의 평균 측면 이동은 1.35mm (오른쪽), 1.08mm (왼쪽)이었고, Alar curvature point는 1.03 (오른쪽), 1.02mm (왼쪽) (p <0.05)였다. cheek point의 평균 전방 변위는 0.59 mm (오른쪽) 및 0.44 mm (왼쪽)이었고, Alar curvature point의 경우는 0.61 mm (오른쪽) 및 0.77 mm (왼쪽) (p <0.05)였다. 전비극(ANS), 후비극(PNS) 그리고 치조골 폭이 유의미하게 증가했다 (p <0.05). 양측의 cheek point과 Alar curvature point의 변화량는 경조직 변화량과 유의미한 상관 관계가 있었다 (p <0.05).
결론: MSE를 이용한 상악 확장을 한 젊은 성인에서 양측 cheek point와 Alar curvature point의 측면 및 전방 움직임이 유의미하게 나타났으며 이를 통해 연조직 움직임을 측정했으며 또한 이것은 치료 전후ANS의 변화량과 PNS의 변화량에서 측정된 상악 봉합 개방과 상관 관계가 있었다.I. INTRODUCTION 1
II. MATERIALS AND METHODS 3
A. MATERIALS 3
1. Subjects 3
2. Appliance 3
B. METHODS 4
1. Cone beam computed tomography measurement 4
2. Statistical analysis 10
III. RESULTS 12
A. Changes in soft tissue landmarks 12
B. Changes in hard tissue landmarks 13
C. The correlations between hard and soft tissue changes 15
IV. DISCUSSION 19
V. CONCLUSION 24
REFERENCES 25Maste
sj-docx-1-npx-10.1177_1934578X231167229 - Supplemental material for Phytochemical Analysis of the Essential Oils From the Rhizomes of Three Vietnamese <i>Curcuma</i> Species and Their Antimicrobial Activity
No full textSupplemental material, sj-docx-1-npx-10.1177_1934578X231167229 for Phytochemical Analysis of the Essential Oils From the Rhizomes of Three Vietnamese Curcuma Species and Their Antimicrobial Activity by Hieu Tran-Trung, Xuan Duc Dau, Thi Chung Nguyen, Hien Nguyen-Thi-Thu, Hieu Nguyen-Ngoc, Thi Giang An Nguyen, Van Trung Hoang, Dang-Khoa Nguyen, Danh Duc Nguyen, Chen Tran Van and Le Duc Giang in Natural Product Communications</p
Oral History of Thanh The Nguyen
No full textAn oral history with Mr. Thanh The Nguyen, born in 1932 in Hanoi, Vietnam. Mr. Nguyen was a ARVN officer in South Vietnam and served his country from 1950-1975. After the collapse of South Vietnam, he was sent to a reeducation camp and was released after 10 years. Mr. Nguyen was happy to speak about his time before the war as well as the events in his life after the war and coming to California. He immigrated to California through the Orderly Departure Program - Humanitarian Operation. Previously he worked as a security guard but has been retired for the past 10 years. Mr. Nguyen is a past member of the Armory Regiment who get together annually to honor their fallen brothers-in-arms during the Vietnam War. He currently lives with one out of his 9 children.Recorded Digitall
sj-docx-1-npx-10.1177_1934578X231208348 - Supplemental material for Characterization and Evaluation of the In Vitro Antioxidant, α-Glucosidase Inhibitory Activities of <i>Camellia longii</i> Orel and Luu. (Theaceae) Flower Essential Oil and Extracts From Vietnam
No full textSupplemental material, sj-docx-1-npx-10.1177_1934578X231208348 for Characterization and Evaluation of the In Vitro Antioxidant, α-Glucosidase Inhibitory Activities of Camellia longii Orel and Luu. (Theaceae) Flower Essential Oil and Extracts From Vietnam by Hieu Tran-Trung, Thi Chung Nguyen, Vo Cong Dung, Hieu Nguyen Ngoc, Dang Khoa Nguyen, Danh Cong Vu, Son Dang Van, Quynh Anh Thai Nguyen, Trang Ha Dieu Nguyen, Vo Mong Tham and Xuan Duc Dau in Natural Product Communications</p
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