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Thionitrous acid (HSNO), a potential key intermediate in biological signaling pathways, has been proposed to link NO and H2S biochemistries, but its existence and stability in vivo remain controversial. We establish that HSNO is spontaneously formed in high concentration when NO and H2S gases are mixed at room temperature in the presence of metallic surfaces. Our measurements reveal that HSNO is formed by the reaction H2S + N2O3 → HSNO + HNO2, where N2O3 is a product of NO disproportionation. These studies also suggest that further reaction of HSNO with H2S may form HNO and HSSH. The length of the S-N bond has been derived to high precision and is found to be unusually long: 1.84 Å, the longest S-N bond reported to date for an R-SNO compound. The present structural and, particularly, reactivity investigations of this elusive molecule provide a firm foundation to better understand its potential physiological chemistry and propensity to undergo S-N bond cleavage in vivo.

Investigations into bimolecular reaction kinetics probe the details of the underlying potential energy surface (PES), which can help to validate high-level quantum chemical calculations. We utilize a combined linear Paul ion trap with a time-of-flight mass spectrometer to study isotopologue reactions between acetylene cations ( C 2 H 2 + ) and two isomers of C3H4: propyne (HC3H3) and allene (H2C3H2). In a previous study [Schmid et al., Phys. Chem. Chem. Phys. 22, 20303 (2020)],1 we showed that the two isomers of C3H4 have fundamentally different reaction mechanisms. Here, we further explore the calculated PES by isotope substitution. While isotopic substitution of reactants is a standard experimental tool in the investigation of molecular reaction kinetics, the controlled environment of co-trapped, laser-cooled Ca+ ions allows the different isotopic reaction pathways to be followed in greater detail. We report branching ratios for all of the primary products of the different isotopic species. The results validate the previously proposed mechanism: propyne forms a bound reaction complex with C 2 H 2 + , while allene and C 2 H 2 + perform long-range charge exchange only. [ABSTRACT FROM AUTHOR]

The effect of confinement onto the mechanical properties of the amorphous phase of Polyethylene terephthalate (PET) and poly(lactic acid) (PLA) was investigated. These polymers have the advantage of being in bulk amorphous or in semicrystalline state allowing mechanical and physical investigation of the amorphous phase on bulk and confined configuration. Based on small angle X-ray scattering (SAXS), differential scanning calorimetry (DSC), and dynamic mechanical analysis (DMA) experiments, the micro-structural arrangement of the amorphous and crystalline phase, the rigid amorphous fraction, and the viscoelastic mechanical properties of the different semicrystalline samples were investigated. DSC results help quantifying the rigid amorphous fraction dependence on the crystallinity. DMA measurements lead to quantify the viscoelastic properties of the free and confined amorphous phases for PET and PLA polymers. Indeed, based on the DMA tests, where the maximum of tan(δ) peak is usually related to the glass transition temperature, shifts upon crystallization, the mechanical properties of the restricted and mobile amorphous phase were determined. This result was correlated along with the amorphous phase thickness distribution determined by SAXS results. This observation was bolstered based on literature results about geometrical confinement configurations and their effect on the glass transition temperature of polymeric materials., INTRODUCTION Mechanical behavior laws of polymers are usually built based on combined macroscopic measurement and phenomenological observations [1-4]. These two considerations lead to the development of behavior laws not robust [...]

The research topic related to transport infrastructure and the impact of increasing land prices has attracted the attention and research interest of many scholars, practitioners, and policymakers. This is an essential basis to provide the necessary information in allocating and regulating the land value-added accordingly. The study surveyed three suburban districts of Hanoi’s capital, with 524 survey samples. The case study focuses on a road project that is constructed and passes through three of Hanoi’s suburban areas. We collected these samples using the convenience sampling method. The authors chose to conduct a survey among households with land and real estate within a 1 km radius. The purpose of these survey samples is to gauge how the development of transportation infrastructure affects the cost of urban land. Additionally, the study put out seven hypotheses, and the findings indicated that, in line with the authors’ expectations, five of the seven hypotheses were supported. Specifically, land use change and accessibility are the two variables that had the strongest impact on land price changes in the study area, while travel time and development opportunities do not show any influence on land prices. The study’s findings further support the idea that the development of transportation infrastructure in urban periphery has altered the character of land use. The study also provides some policy implications in land price management to regulate and mobilize financial resources from land generated by infrastructure development.

We consider problem (P) of Kirchhoff-Carrier type with nonlinear terms containing a finite number of unknown values $u(\eta_1,t),\cdots,u(\eta_q,t)$ with $0\leq\eta_1

Nghiên cứu hiện trạng khai thác của nghề lưới rê đã được thực hiện từ tháng 8 năm 2022 đến tháng 4 năm 2023 ở các huyện ven biển của tỉnh Sóc Trăng nhằm phân tích khía cạnh kỹ thuật, tài chính, những thuận lợi và khó khăn của nghề này. Có 55 hộ ngư dân làm nghề lưới rê được phỏng vấn với nội dung về tàu thuyền khai thác, ngư trường, mùa vụ khai thác, những loài khai thác chính, sản lượng khai thác, hiệu quả tài chính, những thuận lợi và khó khăn. Kết quả cho thấy nghề lưới rê đang được phát triển ở tỉnh Sóc Trăng. Nghề này khai thác quanh năm. Sản lượng khai thác trung bình là 26,5 tấn/tàu/năm và có tỉ lệ cá tạp thấp (4,2%). Các chi phí nhiên liệu và nhân công chiếm tỉ lệ lớn trong tổng chi phí chuyến biển. Tỉ suất lợi nhuận thấp hơn những năm trước, chỉ đạt 0,26 lần. Khó khăn chính của nghề lưới rê là cạnh tranh ngư trường khai thác, sản lượng khai thác giảm và chi phí chuyến khai thác cao.

Sharing-based accommodations services are experiencing rapid global growth, driven by their inherent advantages. Nevertheless, alongside the benefits, these services are also accompanied by costs and potential risks. Intriguingly, the factors impeding or restricting consumer adoption of sharing-based accommodations have not been comprehensively investigated thus far. This study utilized innovation resistance theory (IRT) to investigate the influence of various barriers on the intention to use sharing-based lodgings services. Additionally, this study extended IRT by examining the impact of personal characteristics (innovativeness and compatibility) on consumers’ perceived resistance and intention to use sharing-based accommodations services. A quota sample included 493 individuals who were aware of sharing-based accommodations services and had traveled within the past 6 months. Path analysis utilizing structural equation modeling was used to test the research hypotheses. The study’s findings demonstrated that several barriers have a detrimental impact on individuals’ intentions to engage in sharing-based accommodation, except for image barriers and usage barriers. In addition, consumers’ innovativeness and compatibility characteristics negatively impact barriers and positively impact intention to use sharing-based accommodations. Based on these findings, sharing-based accommodations providers, individuals or businesses providing accommodations, and localities providing tourism services can design more effective strategies to attract users.

The objective of this study was to investigate the mental disturbances among COVID-19 survivors while also examining their quality of life. A retrospective cohort study was conducted among COVID-19 survivors in northern Vietnam. Anxiety, depression, insomnia, cognitive impairment, and quality of life were assessed using the Patient Health Questionnaire-9, Generalized Anxiety Disorder-7, Pittsburgh Sleep Quality Index, Mini-Cog, and Short Form-8 (SF-8), respectively. Information regarding COVID and post-COVID conditions was retrospectively collected through direct interviews. Ordinal logistic regression was employed to identify factors associated with the severity of depression and anxiety; binary logistic regression was used to identify factors associated with the presence of sleep disturbance and cognitive impairment, and linear regression was utilized to identify factors associated with the mental and physical components of the SF-8. A total of 1596 participants were included in this study, with the prevalence of depression, anxiety, sleep disturbance, and cognitive impairment being 8.7%, 16.9%, 23.4%, and 5.6%, respectively. Experiencing discrimination during COVID-19 infection and post-COVID syndrome were both linked to long-term outcomes of depression, anxiety, and insomnia and were also related to a decline in the quality of life. Our study provided initial insights into the mental outcomes and quality of life among COVID-19 survivors over an extended period, with stigmatization and post-COVID syndrome identified as the primary associated factors. A longitudinal study with random sampling, a control group, and measures to better control recall bias is recommended.

Nghiên cứu được tiến hành nhằm đánh giá tình hình chăn nuôi heo, dịch bệnh truyền nhiễm và thực hành vệ sinh thú y liên quan đến bệnh dịch tả heo Châu Phi (African swine fever – ASF) trên heo tại tỉnh Cà Mau. Số liệu thứ cấp về tình hình chăn nuôi và dịch bệnh được thu thập thông qua điều tra hồi cứu; số liệu sơ cấp thực trạng vệ sinh thú y được thu thập thông qua điều tra cắt ngang và phỏng vấn trực tiếp đối với 79 hộ chăn nuôi heo. Kết quả cho thấy, tổng đàn heo của tỉnh Cà Mau giảm mạnh vào năm 2019 (giảm 22,98%) và 2020 (giảm 25,63%) so với năm 2018 do ảnh hưởng của bệnh ASF. Dịch bệnh trên heo trong giai đoạn 2019 – 2020 chủ yếu là do ASF gây ra. Quy mô chăn nuôi heo chủ yếu là quy mô nông hộ (89,87%), chăn nuôi heo hướng thịt (89,87%), kinh nghiệm chăn nuôi lâu năm (>10 năm) (50,63%), hệ thống chuồng hở (63,29%), người chăn nuôi sử dụng thức ăn hỗn hợp (91,14%) và nước giếng (89,87%). Bên cạnh đó, người chăn nuôi tại địa phương có quan tâm về thực hành vệ sinh thú y để phòng ngừa lây nhiễm bệnh ASF.

Khảo sát sự hiện diện vi khuẩn Staphylococcus spp. trên chó viêm da được thực hiện tại một số phòng khám ở thành phố Hồ Chí Minh thông qua phương pháp kiểm tra lâm sàng, phân lập vi khuẩn và định danh bằng kỹ thuật PCR. Tổng số 96 mẫu swab da được thu thập và định danh vi khuẩn Staphylococcus ở những chó có biểu hiện bệnh viêm da cho thấy tỷ lệ hiện diện Staphylococcus spp. là 84,4%. Tỷ lệ phát hiện Staphylococcus spp. ở chó nuôi thả và kết hợp giữa nuôi thả với nuôi nhốt (94,7%) cao hơn chó nuôi nhốt (69,2%); tỷ lệ phát hiện chó dưới một năm tuổi nhiễm Staphylococcus spp. (62,5%) thấp hơn chó trên 5 năm tuổi (96,7%). Ngoài ra, trong số 105 chủng Staphylococcus phân lập, vi khuẩn Staphylococcus spp. thuộc nhóm dương tính coagulase (80,0%) hiện diện với tỷ lệ cao hơn các loài Staphylococcus spp. thuộc nhóm âm tính coagulase (20,0%). Kết quả định danh vi khuẩn bằng phương pháp PCR cho thấy đã xác định được 4 loài Staphylococcus là S. aureus, S. pseudintermedius, S. epidermidis và S. schleiferi. Trong đó, S. pseudintermedius chiếm tỷ lệ cao nhất (49,5%).

This study aims to identify factors affecting working happiness and organizational commitment at tourism enterprises in the Central region, Vietnam. This study used combination method of qualitative and quanitative methods. A 703-tourism-employee survey was conducted at the tourism enterprises, destinations or organizations in the Central region, Vietnam. This research results showed that there were 5 factors affecting directly on working happiness and organizational commitment, including (1) Working environment, (2) Job characteristics, (3) Colleague relationship, (4) Work-life balance, and (5) Income and benefits. This study also examined and showed impact of the 4 factors on organizational commitment through working happiness as mediator factor, excluding working environment. From these results, the study proposed some managerial implications for tourism enterprises in the Central region, Vietnam improve human resource quality through working happiness and organizational commitment.

ObjectiveThis study aimed to measure depression among children and adolescents during the COVID-19 pandemic in Hanoi, Vietnam and its associated factors by using the Short Mood and Feelings Questionnaire (SMFQ) instrument.MethodsWe conducted a cross-sectional study among students from grades 6 to 9 within two secondary schools in Hanoi, the capital of Vietnam. A structured questionnaire was used, including information about personal characteristics, perception of COVID-19, and SMFQ. Factor analysis, Multivariate logistic and Tobit regression models were used.ResultsAmong 2378 students, 8.8% had depressive symptoms. The mean SMFQ score was 4.5 (SD=5.0). Being female, studying in higher grades, perceived low household income, higher perceived impacts of COVID-19 on health and higher perceived impacts of COVID-19-related quarantine on life were positively associated with factors’ scores, SMFQ score and depressive symptoms. Meanwhile, having better academic performance, living with parents and having higher perceived knowledge about COVID-19 were negatively associated with factors scores, SMFQ score and depressive symptoms.ConclusionsDepressive symptoms were common among secondary school students in Hanoi, Vietnam, during the COVID-19 pandemic. Tailored interventions to improve pandemic-related knowledge and family and school support should be warranted for the students to enhance their mental well-being.

Air service failures and negative customer reactions have been the subjects of increasing media attention in recent years. Drawing upon the expectation disconfirmation theory (EDT), this study investigates the impact of airline service failures on various negative emotions and negative behaviors of customers based on prior expectations and actual experiences after a service failure. The collected data was from 561 customers who experienced an air service failure within the past 6 months. The results show that, consistent with the EDT theory, prior expectations and actual experiences when an airline service failure occurs lead to disconfirmation, and this determines the negative emotions of customers. The results also show that, worry and frustration only lead to negative word-of-mouth intentions. Meanwhile, anger over an airline service failure will affect both complaints, negative word-of-mouth, and intention to switch to another airline. This study contributes by expanding and showcasing the applicability of the EDT theory to the domain of airline service failures.

Để tìm hiểu các yếu tố khách quan có ảnh hưởng đến việc dạy học Ngữ văn theo Chương trình Giáo dục phổ thông năm 2018, một nghiên cứu khảo sát được tiến hành nhằm xem xét ý kiến 144 giáo viên đang giảng dạy Ngữ văn lớp 10 ở Đồng bằng sông Cửu Long về năm yếu tố, gồm (1) Sách giáo khoa, (2) Điều kiện dạy học, (3) Người học, (4) Sự hỗ trợ của đồng nghiệp và lãnh đạo, (5) Học tập và trao đổi chuyên môn. Kết quả cho thấy giáo viên có xu hướng đồng ý rằng các yếu tố này có ảnh hưởng đến việc dạy học, trong đó “Sự hỗ trợ của đồng nghiệp và lãnh đạo” đem đến nhiều thuận lợi nhất, còn “Điều kiện dạy học” có nhiều yếu tố gây bất lợi nhất. Ngoài ra, trong sáu đề xuất nhằm hỗ trợ giáo viên thực hiện Chương trình 2018, đề xuất “Cần có văn bản hướng dẫn thực hiện Chương trình” được đánh giá cần thiết nhất với 63,9% tỷ lệ lựa chọn (N=144).

Firm value is an important indicator for increasing the competitiveness of a company amidst very tight business competition. This research aims to obtain empirical evidence regarding the influence of Green Innovation on Firm Value which is mediated Environmental Management Accounting and moderated by Quality Management. The companies that are the object of this research are manufacturing companies listed on the Indonesia Stock Exchange (BEI) for the 2020-2022 period. The sampling technique in this research used a purposive sampling method and obtained 65 companies. The multicollinearity test and heteroscedasticity test are used as classical assumption tests. Eviews 12 software with panel data regression analysis was used to test the hypothesis. Based on the research results, it was found that green innovation, environmental management accounting, green innovation have an influence on Firm Value, environmental management accounting has an influence in mediating the relationship between green innovation and Firm Value and quality management can moderate the relationship between green innovation and Firm Value.

This study was conducted to clarify the antimicrobial susceptibility and antibiotic resistance genes of Escherichia coli O8 and O9 isolated from 244 cattle feces collected from December 2021 to March 2022 in the Mekong Delta, Vietnam. E. coli was isolated from the feces following the method of TCVN 7686:2007 (ISO16654:2001), and serotypes O8 and O9 were identified by the PCR method. E. coli O8 and O9 were identified at a relatively high rate, with 15.98% and 8.20%, respectively. The disc diffusion method was applied to determine the antimicrobial susceptibility of those E. coli strains against thirteen antibiotics following the guidelines of the Clinical and Laboratory Standard Institute. Those E. coli O8 and O9 strains showed high susceptibility to amikacin (98.31%), doxycycline (96.61%), ofloxacin (94.92%), and levofloxacin (93.22%). However, those isolates exhibited resistance against ampicillin (47.46%), streptomycin (44.07%), and tetracycline (42.37%). Of those 59 E. coli strains, 35 strains (59.32%) were multiple resistant against two to twelve antibiotics with 25 resistant patterns. The pattern of Am+Ac+Co+Sm+Te+Cl was the most common type (6.78%). The prevalence of six antibiotic-resistance genes was determined by using PCR. Gene tetA was the most prevalent gene (66.10%), while cat1 was the least one (5.08%). Forty-five E. coli O8 and O9 strains (76.27%) harbored from two to four antibiotic resistance genes, and the pattern of strA+tetA+sulII was detected at the highest rate (23.73%). Therefore, the prevalence and antibiotic resistance of E. coli O8 and O9 should be controlled to protect cattle and human health.

This study aims to examine the impact of destination social responsibility on destination brand equity and revisit intention at destinations in the Southeast region, Vietnam. Combining qualitative and quantitative research methods with a 593-tourist survey at the destinations. The results show that destination social responsibility positively affects destination brand equity and the revisit intention at the destinations. Destination social responsibility also affected revisit intention through destination brand equity as a moderating factor. From these findings, some managerial implications were proposed for tourism managers, destinations, and enterprises to be more interested in destination social responsibility activities and destination brand equity to improve the revisit intention of tourists in the Southeast region, Vietnam.

Abstract Vibrio parahaemolyticus is a significant causal agent of acute hepatopancreatic necrosis disease (AHPND), with huge production losses of white leg shrimp, Litopenaeus vannamei, cultivated globally, including aquaculture farms in the Mekong Delta of Vietnam. Controlling this disease is critical because of the worldwide expansion of antimicrobial‐resistant V. parahaemolyticus isolates. The purpose of this study was to determine the frequency of multi‐antibiotic resistance (MAR) in V. parahaemolyticus isolated from AHPND white leg shrimp extensively cultivated in Bac Lieu Province (Mekong Delta). Based on biochemical tests and toxR‐PCR positive detections, 34 V. parahaemolyticus isolates were identified. Antibiotic susceptibility examination revealed that most of the isolates were phenotypically multidrug resistant, including resistance to ceftazidime (100%) and amoxicillin (97.06%), followed by colistin (74%) and erythromycin (65%). These isolates were highly sensitive to doxycycline (94%), followed by florfenicol (74%) and flumequine (71%). There were 27 distinct MAR phenotypes detected among 34 isolates, with 14.71% of the isolates exhibiting the antibiotic profile AMO‐CEF‐CEP‐COL‐ERY, followed by 11.76% for each of the profiles AMO‐CEP‐TET‐COL and AMO–CEP–COL. In particular, 25 isolates (75%) were resistant to at least 5 (of the 12) antibiotics tested. A hierarchical clustering analysis of antibiotic‐resistant V. parahaemolyticus isolates indicated cross‐transmission across farms and its ability to survive in aquatic environments for extended periods (over 3 months). Our findings support the hypothesis that the variety of MARPs in V. parahaemolyticus is the result of human activities. Environmentally friendly therapy strategies should be used for the prophylaxis and treatment of V. parahaemolyticus infection.

In the present research, fountain solution without isopropyl alcohol (IPA) for Ultraviolet offset curing ink (UV ink) was prepared by using Ethylene Glycol Mono-butyl Ether (EGME) as a substitute for IPA. The effect of EGME concentration on the water pick-up characteristics, tack value, rheological behaviors, and curing time of UV offset inks was investigated. Water pick-up characteristics, tack value and rheological behaviors were measured by Duke Ink water emulsification tester, Tack-o-scope and cone-plate rheometer, respectively. The curing time of the UV ink was evaluated by the rub test of printed sheet samples proofed on the polymer film at the standard solid ink density and the same ink thickness. The results revealed that an increase in EGME concentration increased the water pick-up characteristics of the UV ink. There was no significant influence of EGME on the tack value of UV inks. However, the tack value of UV ink was significantly affected by fountain concentration in UV inks and UV ink color. The addition of EGME reduced the dynamic viscosity and thixotropic property of UV inks but did not change the flow behavior of UV ink as shear thinning. This study indicates that UV ink emulsified with a higher EGME concentration fountain solution needs a longer curing time. The cyan UV ink has the longest curing time. Finally, the fountain solution of 10% EGME exhibited good performance in water pick-up characteristics, tack value, rheological behaviors, and curing time of UV inks.

Introduction: Industrial feed in fish farming merely covers nutritional demands and does not stimulate improved immunity in fish. Additionally, antibiotic misuse is hazardous to both the environment and human health. Therefore, for quality and safety, the most secure approach is to employ the huge supply of Vietnamese medicinal plants in fish farm food supplements. Materials and methods: EtOH extract of the leaves of A. occidentale TD1, V. negundo TD2, V. rotundifolia TD3, A. aureum L TD4, J. subtriplinerve Blume TD5 collected in Vinh Long province, Vietnam based on in vitro antibacterial assessment by agar plate diffusion method and MIC, in vivo evaluation of virulence test by artificial infection with Kosakonia sacchari bacteria on the experimental fish model Anabas testudineus and investigate the activity of plant extracts when mixed into the feed. Result: Antibacterial test by agar plate diffusion method showed that TD1 extract gave the best antibacterial result along with a concentration of 12.5 µg/ml. In the experiment to evaluate the virulence of the isolated K. sacchari strain, the result was that the strain was lethal to 87.6% of fish after 24 hours of injection at 105 CFU/ml, and the minimum lethality threshold LD50 was recorded in strains of 3.16 × 104 CFU/ml. The results were obtained in the experiment to evaluate the activity of plant extracts when mixed into feed. Feed containing TD1 protected fish from the artificial lethal agent K. sacchari (survival rate reaches 93%) and also helped to increase the weight gain of fish up to 22.8g. Conclusion: EtOH leaf extract of A. occidentale TD1 exhibits the strongest antibacterial activity and can protect perch A. testudineus against multi-antibiotic-resistant strains of K. sacchari. There is an initial assessment of the potential of Vietnamese medicinal plants to gradually replace antibiotics, aiming for safety in farming, food production, and consumption. Following that, the idea might be carried out on a bigger scale as pilot models or fish farms to become a new source of commercial animal fodder.

Mobile phone service servers crucial role in today’s business and improving this service is without doubt a topic attracting high concerns from service providers. Thus, a study about mobile user satisfaction is constantly needed to help service providers have appropriate strategies in their business, particularly in the context of the high competition in the telecommunication market in today’s world. Based on Serveperf’s theoretical model and adjusted measurement scales, this study employed secondary data collected from official reports in the telecommunication industry and primary data, which were collected from 230 mobile phone service users. These input data were analyzed by descriptive statistics and factor analysis methods to determine factors impacting the satisfaction of mobile service users in Tien Giang Province. Results show that convenience, customer service, and cost have significant impacts on mobile service user satisfaction. Some solutions to the service providers in Tien Giang Province aiming at enhancing customer sastisfaction are suggested in line with the empirical findings of this study.

ABSTRACT: Objective: This study described the rate of suicidal ideation in lung cancer patients and identify associated factors. Method: A cross-sectional study was conducted from August 2021 to October 2022 at the Nuclear Medicine and Oncology Center – Bach Mai Hospital, Hanoi, Vietnam. A total of 256 patients completed the survey. The Columbia Suicide Severity Rating Scale (C-SSRS) was used to measure suicidal ideation. The Hospital Anxiety and Depression Scale (HADS) was utilized to evaluate depression and anxiety. Socio-demographic characteristics, clinical features and pain severity were also measured. Multivariate logistic regression was used to identify factors associated with suicidal ideation. Results: There was 8.2% having suicidal ideation. Among patients with suicidal ideation, the mean score of intensity subscale was 13.33 ± 4.98, and mean scores on intensity scale items were as follows: frequency (mean=2.86 ± 1.32). duration (mean=2.29 ± 1.15), controllability (mean=2.67 ± 1.28), deterrents (mean=2.48 ± 1.21), and reason for ideation (mean=3,05 ± 1,63). Being female (OR=3.36, 95%CI=1.35-8.37), having severxe pain (OR=5.91, 95%CI=1.65-21.18), having depression (OR=10.36, 95%CI=3.93-27.39) and having anxiety (OR=7.81, 95%CI=3.05-20.01) were positively associated with the likelihood of having suicidal ideation among lung cancer patients. Conclusion: Findings revealed the high prevalence of suicidal ideation among individuals diagnosed with lung cancer in Vietnam. Notably, this trend was more pronounced among female patients, those with severe pain, and individuals experiencing mental disorders such as depression and anxiety. Practitioners ought to prioritize the screening and intervention processes for lung cancer patients with a high risk of suicidal tendencies.

The aim of the study is to investigate the prevalence of Lynxacarus radovskyi infestation in cats in Vietnam. This survey was conducted on 2,430 cats registered at the Center of Veterinary Clinic, Can Tho City, Vietnam from February to October 2022. Clinical findings and other influential factors such as age, sex, breed, and living conditions of cats were recorded to evaluate the potential risk factors associated with L. radovskyi infestation. The Trichogram technique was used for the microscopic identification of L. radovskyi. The results revealed that 60.25% (1,464/2,430) of cats were infested with L. radovskyi. The statistical analysis showed that L. radovskyi infestation was significantly (P

Nghiên cứu được tiến hành khảo sát 203 khách hàng đã từng mua sắm tại siêu thị Go Cần Thơ, sau đó thống kê mô tả và so sánh để nhận xét mức độ đánh giá và nhận thức của khách hàng về các nhận định liên quan về các biểu trưng văn hóa doanh nghiệp, các yếu tố cấu thành chất lượng dịch vụ, ý định hành vi khách hàng sau khi tiêu dùng tại siêu thị. Kết quả phân tích nhân tố khám phá mô hình cho ra 10 nhóm nhân tố bao gồm: hàng hóa (4 biến quan sát), nhân viên (5 biến quan sát), trưng bày (3 biến quan sát), mặt bằng (3 biến quan sát), an toàn (3 biến quan sát), lòng trung thành (5 biến quan sát), trả thêm (2 biến quan sát), phàn nàn khách hàng (2 biến quan sát), biểu trưng trực quan (6 biến quan sát) và biểu trưng phi trực quan (8 biến quan sát). Phân tích cấu trúc tuyến tính SEM cho thấy văn hóa doanh nghiệp có tác động cùng chiều đến chất lượng dịch vụ, văn hóa doanh nghiệp có tác động cùng chiều đến ý định hành vi khách hàng và chất lượng dịch vụ có tác động dương đến ý định hành vi khách hàng.

Agricultural production is one of the main sources of anthropogenic greenhouse gas (GHG) emissions, contributing 50% and 60% of CH4 and N2O emissions, respectively. This study evaluated the rice yield and components, the CH4 and N2O emissions and the global warming potential between the triple rice (R-R-R) and sesame-rice rotation (S-R-R) systems in Can Tho city, Vietnam. The experiments were conducted in 3 cropping seasons: Spring-Summer 2016, Summer-Autumn 2016, and Winter-Spring 2016-2017. The results showed that there was no significant difference in yield components and grain yield between triple rice and rotation systems. The application of sesame rotation in rice-based could reduce the CH4 and N2O emission by 30.5% and 18.7%, respectively. Global warming potential in the S-R-R rotation was 9860 kg CO2e/ha, significantly lower than the R-R-R rotation (12410 kg CO2e/ha) by 20.6%. These results show that the S-R-R rotation has the potential to mitigate GHG emissions, especially CH4, which contributes to a large amount of emissions in rice cultivation.

Nghiên cứu trình bày kết quả thực nghiệm sử dụng công cụ Padlet để tổ chức cho học sinh lớp 6X thực hành các hoạt động viết. Thực nghiệm được tiến hành từ tháng 10/2022 đến tháng 01/2023 với sự tham gia của 40 học sinh lớp 6X tại trường THCS P.T (Quận Cái Răng, thành phố Cần Thơ) với hai kiểu bài viết là kể lại một truyện cổ tích và kể lại một trải nghiệm của bản thân. Các số liệu thực nghiệm được thống kê và xử lí bằng cả phương pháp định tính lẫn định lượng. Kết quả cho thấy các kỹ năng viết của học sinh như (1) Tìm ý, lập dàn ý, (2) Viết đoạn văn (Mở bài, Kết bài) và (3) Kỹ năng chỉnh sửa có sự thay đổi đáng kể thông qua quá trình thực hành trên Padlet.

Introduction: The Vietnamese climbing perch (Anabas testudineus) is a farmed species with significant economic value that is extensively disseminated in numerous countries, including Vietnam. Antibiotic and antibacterial drugs have been abused in climbing perch aquaculture. These antibiotic-resistant bacteria and/or genes can result in negative effects on public health and the environment. Materials and methods: The study collected samples of perch with suspicious signs of infection and isolated bacteria from the collected fish samples. Isolated bacteria were examined for morphological and biochemical characteristics and evaluated for their antibiotic resistance by antibiotic-immersed paper discs, sequencing methods, and phylogenetic tree analysis methods using Mega 11 software, model Kimura-2-parameter bootstrap 1,000 times, was used to identify molecules by the 16S rRNA gene. Results: In this study, 14 bacterial colonies were identified in Vietnamese climbing perch collected from several fish farms in Ho Chi Minh City that had aberrant symptoms on the exterior and within their organs. These bacteria were then put through a series of biochemical experiments to determine their colony morphologies. Following that, gene sequencing was performed, and 4 bacterial strains were found with a high degree of similarity to the 16S rRNA, including Pseudomonas aeruginosa (99.7%), Aeromonas dhakensis (99.93%), Kosakonia sacchari (100%), and Edwardsiella ictaluri (99.44%). Conclusions: 04 strains of sequenced bacteria with multi-antibiotic resistance status were detected in A. testudineus perch circulating in a fish farm in Ho Chi Minh City.

In this paper, we propose three interference cancellation based multi-hop decode-and-forward (DF) relaying protocols to enhance end-to-end system throughput under constraint of half-duplex and hardware imperfection. In the first proposed protocol, the successive interference cancellation technique is used at each hop to send N signals from a source to a destination. Hence, the first proposed protocol can increase N times of the data rate, as compared with the corresponding conventional multi-hop DF relaying protocol in which only one source data is hop-by-hop relayed to the destination via M intermediate hops. In the second one, the source and relays can at the same time transmit their signals, and the interference cancellation can be performed to remove co-channel interference components. Therefore, the data rate of the second proposed protocol can increase M/2 times, as compared with the corresponding conventional protocol. The third proposed protocol is an efficient combination of the first and second proposed ones, and hence its data rate is higher N times than the second proposed one. Moreover, the imperfect co-channel interference cancellation is also considered in the second and third protocols. For performance evaluation, we derive exact closed-form expressions of the end-to-end throughput for three proposed protocols over Nakagami-m fading channel. We also perform simulations to verify the analytical formulas, and propose an simple transmit power allocation strategy to mitigate impact of the co-channel interference and imperfect co-channel interference cancellation.

Các nghiên cứu hiện nay đang tranh luận rằng công bố thông tin trách nhiệm xã hội của doanh nghiệp (Corporate Social Responsibility Disclosure - CSRD) có thực sự hữu ích cho doanh nghiệp hay chỉ đơn thuần là công cụ tư lợi của nhà quản lý. Để làm rõ quan điểm này, tác giả phân tích liệu CSRD có làm giảm sự Bất Cân Xứng Thông Tin (BCXTT) nảy sinh giữa hai bên ủy quyền và đại diện. Dựa trên bộ Tiêu chí GRI (Global Sustainability Standards Board, 2016), tác giả dùng phương pháp phân tích nội dung để xây dựng chỉ số đo lường mức độ CSRD của các doanh nghiệp niêm yết. Mẫu nghiên cứu gồm 75 công ty thuộc nhóm ngành công nghiệp, niêm yết trên hai Sở giao dịch chứng khoán ở Việt Nam trong giai đoạn 2014 - 2019. Để tăng tính vững, tác giả sử dụng ước lượng mô men tổng quát (GMM) và một số kiểm định liên quan. Các phát hiện cho thấy CSRD làm giảm thiểu BCXTT nảy sinh từ vấn đề đại diện trong công ty niêm yết. Hàm ý rằng việc đầu tư vào CSRD có thể giúp công ty giải quyết tình trạng BCXTT và thông qua đó giảm chi phí đại diện.

Atoms and molecules often react at different rates depending on their internal quantum states. Thus, controlling which internal states are populated can be used to manipulate the reactivity and can lead to a more detailed understanding of reaction mechanisms. We demonstrate this control of reactions by studying the electronically excited state reaction. This reaction is exothermic only if Ca is in one of its excited electronic states. Using laser-cooling and electrodynamic trapping, we cool and trap Ca at millikelvin temperatures for several minutes. We can then change the fraction of time they spend in each of the two excited states by adjusting the detunings of the cooling lasers. This allows us to disentangle the reactions that begin with Ca in the 2P -state from the ones where Ca is in the 2D -state. Using time-of-flight mass spectrometry, we determine independent reaction rate constants for Ca in both electronically excited states. [ABSTRACT FROM AUTHOR]

We study a system of nonlinear wave equations of the Kirchhoff-Carrier type containing a variant of the Balakrishnan-Taylor damping in nonlinear terms. By the linearization method together with the Faedo-Galerkin method, we prove the local existence and uniqueness of a weak solution. On the other hand, by constructing a suitable Lyapunov functional, a sufficient condition is also established to obtain the exponential decay of weak solutions.

Non-platinum electrodes for photoelectric devices are challenging and attractive to the scientific community. A thin film of molybdenum disulfide (MoS2) was prepared on substrates coated with fluorine-doped tin oxide (FTO) to substitute the platinum counter electrode (CE) for dye-sensitized solar cells (DSSCs). Herein, we synthesized layered and honeycomb-like MoS2 thin films via the cyclic voltammetry (CV) route. Thickness and morphology of the MoS2 thin films were controlled via the concentration of precursor solution. The obtained results showed that MoS2 thin films formed at a low precursor concentration had a layered morphology while a honeycomb-like MoS2 thin film was formed at a high precursor concentration. Both types of MoS2 thin film were composed of 1T and 2H structures and exhibited excellent electrocatalytic activity for the I3–/I− redox couple. DSSCs assembled using these MoS2 CEs showed a maximal power conversion efficiency of 7.33%. The short-circuit value reached 16.3 mA·cm−2, which was higher than that of a conventional Pt/FTO CE (15.3 mA·cm−2). This work reports for the first time the possibility to obtain a honeycomb-like MoS2 thin film morphology by the CV method and investigates the effect of film structure on the electrocatalytic activity and photovoltaic performance of CEs for DSSC application.

Introduction: Laparoscopic anorectoplasty (LAARP) is useful for the management of rectoprostatic urethral fistula (RPUF), due to easier rectal mobilization, avoidance of posterior sagittal muscular incision, and shorter hospital stay. However, its role in rectobulbar urethral fistula (RBUF) is still debated as there is a chance of urethral diverticulum (UD), due to incomplete dissection. Laparoscopy-assisted modified posterior sagittal anorectoplasty (LAMPSARP) utilizes advantages of LAARP combined with fistula dissection using small sagittal incision preserving puborectalis. The present study compares the results of LAMPSARP with LAARP for correction of RBUF associated with anorectal malformations (ARMs). Materials and Methods: All male ARM with RBUF presenting in a tertiary center in Central India (January 2014–January 2016) were included. Low male ARM, RPUF, rectovesical fistula, and congenital pouch colon were excluded. They were randomized into LAARP and LAMPSARP groups. Complications were assessed in terms of anal stenosis, mucosal prolapse, and UD. Kelly's scoring and Krickenbeck scoring were used to assess continence, and visible anal cosmesis scale (VACS) was used to assess wanal cosmesis. Results were statistically analyzed using a comparison of means and 2 × 2 contingency tables. Results: Fifty-six colostomized patients with RBUF (26 LAARP, 30 LAMPSARP) were included. Mean operative duration in the LAARP group and LAMPSARP group was 42 ± 10 min and 56 ± 12 min, respectively (P < 0.0001). On mean follow-up of 4.5 years, mucosal prolapse (53.9%) and UD (15.38%) were significantly higher in LAARP group, while anal stenosis was similar. All three, Kelly's score, Krickenbeck score, and VACS, were better (P < 0.05) in the LAMPSARP group. Conclusion: Laparoscopy-assisted modified posterior sagittal approach is better for RBUF and offers better surgical outcome.

We report a simple technique for direct neutron spectroscopy using pure LaCl3 crystals. Pure LaCl3 crystals exhibit considerably better pulse shape discrimination (PSD) capabilities with relatively good energy resolution as compared with Ce-doped LaCl3 crystals. Single crystals of pure and Ce-doped LaCl3 were grown using an inhouse-developed Bridgman furnace. PSD capabilities of these crystals were investigated using 241Am and 137Cs sources. Fast neutron detection was tested using a252Cf source and three separate bands corresponding to electron, proton, and alpha were observed. The proton band induced by the 35Cl(n,p)35S reaction can be used for direct neutron spectroscopy because proton energy is proportional to incident neutron energy. Owing to good scintillation performance and excellent PSD capabilities, pure LaCl3 is a promising candidate for space detectors and other applications that necessitate gamma/fast neutron discrimination capability.

This study estimated the technical efficiency of small-scale trawling in the Mekong Delta using a translog stochastic frontier production function model. Primary data were collected by interviewing the small-scale trawling vessels from January 2020 to May 2021 in the four coastal provinces (Soc Trang, Bac Lieu, Ca Mau, and Kien Giang) of the Mekong Delta. The results showed that the average technical efficiency of the surveyed fishermen was approximately 68.8%. Small-scale trawling vessels could increase their production by 31.2% if they operated at full technical efficiency. The captain’s fishing experience, vessel size, the number of nets on a boat, cooperation for inputs, supplies, and problem-solving, fishing registration, operation distance, and the fishing grounds were the main factors influencing the technical efficiency. To improve the technical efficiency of the trawling industry, it is necessary to focus on training the captains in fishing techniques, upgrading and converting large-scale vessels, and linking the market channels for consuming the caught fishery products.

This study relies on an aggregate dataset of 73 countries from 2013 to 2018 to investigate the nexus between fintech credit, credit information sharing on bank stability. We document several significant findings. First, our evidence implies that fintech credit tends to improve bank stability. This suggests that as fintech credit grows, it certainly competes with banks, but it also strengthens banks’ stability. Second, credit information sharing increases bank stability. Thirdly, it is found that the impact of fintech credit on bank stability may depend on credit information sharing. Specifically, the presence of credit information sharing institutions may facilitate the positive effect of fintech credit on bank stability. This result remains unchanged to the introduction of alternative regression, as well as an alternative dependent variable. Finally, policy implications are discussed based on the findings of the research.

Nghiên cứu được thực hiện nhằm đánh giá tỷ lệ tiêm phòng và đáp ứng miễn dịch sau tiêm của bệnh cúm gia cầm độc lực cao type A/H5 (H5 highly pathogenic avian influenza, H5 HPAI) trên đàn gia cầm của tỉnh Đồng Tháp giai đoạn 2019–2020. Nghiên cứu được tiến hành thông qua thu thập số liệu hồi cứu tình hình tiêm phòng và đáp ứng miễn dịch sau tiêm từ Chi cục Chăn nuôi, Thú y và Thủy sản tỉnh Đồng Tháp. Kết quả cho thấy tỷ lệ tiêm phòng cúm gia cầm type A/H5 có sự khác nhau giữa các huyện/thành phố giai đoạn 2019–2020. Có 6 trong 12 huyện/thành phố có tỷ lệ đàn gia cầm được tiêm phòng dưới 70%. Tỷ lệ tiêm phòng trên vịt cao hơn gà ở các huyện/thành phố. Tỷ lệ đàn đạt bảo hộ sau tiêm phòng tăng từ 59,46% (năm 2019) lên 84,62% (năm 2020). Tỷ lệ bảo hộ trên vịt tăng từ 77,78% (2019) đến 89,05% (2020), cao hơn gà (50,0% năm 2019 và 60,61%, năm 2020). Kết quả nghiên cứu là cơ sở để đánh giá tình hình tiêm phòng và đáp ứng miễn dịch sau tiêm phòng H5, từ đó giúp triển khai các phương án nâng cao công tác tiêm phòng tại các địa phương nhằm kiểm soát hiệu quả H5 HPAI tại tỉnh Đồng Tháp.