(Rubiaceae, Ophiorrhizeae), a new species from Vietnam.

is described as a new species endemic to Central Vietnam. It is morphologically closest to in having setose hairs on the abaxial leaf surface and a pedunculate head-like inflorescence but differs from the latter by a number of characteristics: shorter stem, 3-lobed stipules, narrowly lanceolate leaf blades with a cuneate-oblique base and 20-22 pairs of secondary veins, 3.5-4.

Efficient counter electrode for quantum dot sensitized solar cells using p-type PbS@reduced graphene oxide composite.

This study developed a novel PbS-rGO composite counter electrode to enhance the performance of quantum dot-sensitized solar cells (QDSSCs). The composite was synthesized a hydrothermal method by anchoring PbS nanocubes onto reduced graphene oxide (rGO) sheets. The effect of the mass ratio of rGO to PbS (0.

Highly efficient and thermally stable cyan-emitting ZnS/ZnO phosphors for full-visible-spectrum LED lighting.

Near-ultraviolet (NUV)-pumped white light-emitting-diodes (WLEDs) often suffer from poor color rendering in the 480-520 nm range, highlighting the need for an efficient cyan phosphor with strong absorption at 370-420 nm. This study presents the successful synthesis of cyan-emitting ZnS/ZnO phosphors using a high-energy planetary ball milling method followed by post-annealing. The fabricated phosphors, with particle sizes ranging from 1 to 3 μm, exhibit strong cyan emission with CIE chromaticity coordinates of (0.

Identifying fecal microbiota signatures of colorectal cancer in a Vietnamese cohort.

Background: Colorectal cancer (CRC) is among the top three causes of global cancer mortality. In Vietnam, CRC is the third leading cause of death in women and the fourth cause of cancer mortality in men. A large number of metagenomic studies have reported the relationship between altered composition and function of the gut microbiota with CRC, but this relationship in low- and middle-income countries including Vietnam (with an estimated population of 100.

Comparative phenotypic and proteomic analysis of colistin-exposed .

Introduction: The emergence of colistin resistance threatens the treatment of infections.

Methods: In this study, in vitro development of colistin resistance was investigated using comparative phenotypic and proteomic analysis of ATCC 9027, its 14-day colistin sub-MIC exposed strain (Col-E1), and 10-day antibiotic-free cultured Col-E1 strain (Col-E2). Antibiotic susceptibility, morphology, virulence factors, and proteomic changes were assessed using disc-diffusion, agar-based, spectrophotometry, SEM, and iTRAQ-LC-MS/MS methods.

Syntheses, structures and anti-cancer activities of Cu and Zn complexes containing 1,1'-[(3-fluoro-phen-yl)methyl-ene]bis-[3-(3-fluoro-phen-yl)imidazo[1,5-]pyridine].

Two novel complexes, [Cu()Cl] and [Zn()Cl], were synthesized from 1,1'-[(3-fluoro-phen-yl)methyl-ene]bis-[3-(3-fluoro-phen-yl)imidazo[1,5-]pyridine] (), and copper(II) and zinc(II) chloride, respectively. The structures of these complexes were confirmed using ESI-MS, IR and H NMR spectra. The results reveal mononuclear structures in which the central metal atoms are coordinated by two N atoms from the imidazole rings and two Cl ligands.

The first mitogenome report of Zimmer 1921 (Malacostraca: Cumacea).

In 1921, Zimmer established the genus for from Japanese waters. This study determined the first complete mitogenome of hooded shrimp sequenced from (Cumacea: Diastylidae). is a type species of the genus , distributed in the West Pacific from southern Kuril to Vietnam, including Korean waters.

"We Need Gentleness": Isolation, Loneliness, and Implications for Psychosocial Counseling Among People with HIV who are on Methadone Maintenance Treatment and Experience Common Mental Disorders in Vietnam.

The psychological experiences and needs of people with human immunodeficiency virus (HIV) who use methadone maintenance treatment and have common mental disorders in Hanoi, Vietnam remain unknown. Due to limited services for common mental disorders, optimal delivery methods for psychotherapy are also unknown. Accordingly, this qualitive study explored both symptoms of common mental disorders among this population and the preferred qualifications and characteristics of a mental health counselor.

A Topology-Enhanced Multi-Viewed Contrastive Approach for Molecular Graph Representation Learning and Classification.

In recent times, graph representation learning has been becoming a hot research topic which has attracted a lot of attention from researchers. Graph embeddings have diverse applications across fields such as information and social network analysis, bioinformatics and cheminformatics, natural language processing (NLP), and recommendation systems. Among the advanced deep learning (DL) based architectures used in graph representation learning, graph neural networks (GNNs) have emerged as the dominant and highly effective framework.

Full-arch implant-supported rehabilitation using reverse scan technique: A case report.

The reverse scan technique offers several advantages, such as improvements of accuracy and visibility of critical anatomical structures, minimizing chair time, and providing better patient comfort. This was a case report successfully employing the reverse scan technique. A 72-year-old male patient desired to restore his teeth in both jaws, as he experienced difficulty eating and had never worn dentures.

Molecular detection of the zoonotic trematode Centrocestus formosanus (Nishigori, 1924) (Opisthorchiida, Heterophyidae) in Central Europe.

In our study, fancy southern platyfish Xiphophorus maculatus (Cyprinodontiformes, Poeciliidae) were examined due to breathing disorders and mortality. Fish came from Vietnam farm and were redistributed by international wholesaler. In fish, loss of appetite and gasping near the water surface was observed.

An appropriate DNA input for bisulfite conversion reveals LINE-1 and Alu hypermethylation in tissues and circulating cell-free DNA from cancers.

The autonomous and active Long-Interspersed Element-1 (LINE-1, L1) and the non-autonomous Alu retrotransposon elements, contributing to 30% of the human genome, are the most abundant repeated sequences. With more than 90% of their sequences being methylated in normal cells, these elements undeniably contribute to the global DNA methylation level and constitute a major part of circulating-cell-free DNA (cfDNA). So far, the hypomethylation status of LINE-1 and Alu in cellular and extracellular DNA has long been considered a prevailing hallmark of ageing-related diseases and cancer.

Hypermethylation at 45S rDNA promoter in cancers.

The ribosomal genes (rDNA genes) encode 47S rRNA which accounts for up to 80% of all cellular RNA. At any given time, no more than 50% of rDNA genes are actively transcribed, and the other half is silent by forming heterochromatin structures through DNA methylation. In cancer cells, upregulation of ribosome biogenesis has been recognized as a hallmark feature, thus, the reduced methylation of rDNA promoter has been thought to support conformational changes of chromatin accessibility and the subsequent increase in rDNA transcription.

Assessing the Feasibility and Diagnostic Value of Percutaneous Transhepatic Cholangioscopy Biopsy for Biliary Strictures.

Objective: To evaluate the feasibility and diagnostic value of percutaneous transhepatic cholangioscopy biopsy (PTCB) for identifying the causes of biliary strictures.

Methods: This retrospective study included 34 patients (18 females and 16 males), with a mean age of 59.4 ± 13 years.

Predictors of Palliative Care Self-efficacy Among Health Care Professionals in Vietnam: A Cross-sectional Study.

This study aimed to investigate predictors of palliative care self-efficacy among Vietnamese health care professionals. An online descriptive cross-sectional survey was conducted at 1 hospital in Vietnam. Participants completed survey questionnaires including demographics, professional experience, Palliative Care Self-Efficacy, Palliative Care Quiz for Nursing, Frommelt Attitudes Toward Care of the Dying-Form B, Santa Clara Brief Compassion Scale, and Self-Compassion Scale-Short Form.

Speciation and historical invasions of the Asian black-spined toad (Duttaphrynus melanostictus).

Animal translocations provide striking examples of the human footprint on biodiversity. Combining continental-wide genomic and DNA-barcoding analyses, we reconstructed the historical biogeography of the Asian black-spined toad (Duttaphrynus melanostictus), a toxic commensal amphibian that currently threatens two biodiversity hotspots through biological invasions (Wallacea and Madagascar). The results emphasize a complex diversification shaped by speciation and mitochondrial introgression that comprises two distinct species.

The immunohistochemical combination of low SGLT2 expression and high PRDX4 expression independently predicts shortened survival in patients undergoing surgical resection for hepatoblastoma.

Background: Hepatoblastoma (HB) is the most common malignant solid tumor of the liver in children and is a fatal disease with a poor prognosis. Therefore, indicators that can be used for the early prediction of the HB prognosis are necessary. Sodium glucose cotransporter 2 (SGLT2) is a glucose transporter protein present in the proximal renal tubules.

Global Challenges in the Access of Endovascular Treatment for Acute Ischemic Stroke (Global MT Access).

Background: Mechanical thrombectomy (MT) is the standard of care for eligible acute ischemic stroke (AIS) patients with large vessel occlusion (LVO) since 2015.

Aim: Our aim was to determine the key challenges for MT implementation and access worldwide.

Methods: We conducted an international online survey consisting of 37 questions, distributed through the World Stroke Organization network, and as invited by co-authors between December 2022 and March 2023.

Hepatitis C Virus-Core Antigen: Implications in Diagnostic, Treatment Monitoring and Clinical Outcomes.

The hepatitis C virus (HCV) infection, a global health concern, can lead to chronic liver disease. The HCV core antigen (HCVcAg), a viral protein essential for replication, offers a cost-effective alternative to HCV RNA testing, particularly in resource-limited settings. This review explores the significance of HCVcAg, a key protein in the hepatitis C virus, examining its structure, function, and role in the viral life cycle.

The Herpes Zoster Patient Pathway and Gaps in Current Vaccination Guidelines in Southeast Asia: Summary of a Zoster Experts' Network Scientific Workshop.

The burden of herpes zoster (HZ) is recognized worldwide; however, there is seemingly limited information on incidence and vaccination practices in Southeast Asia (SEA). A scientific workshop was held by the Zoster Experts' Network to exchange and consolidate insights on the burden of HZ and the patient pathway in SEA. The workshop included practicing clinical experts and public health specialists/epidemiologists from Indonesia, Malaysia, the Philippines, Thailand, and Vietnam.

A WSN and LoRa Hybrid Multimedia Transmission Protocol for Scalar Data and Image Transmission.

The proposed protocol features reliable and fast image transmission while periodically transmitting scalar data without interruption by allowing two networks, a LoRa network and a wireless sensor network, with different transmission characteristics to cooperate. It adopts the RT-LoRa protocol for periodic scalar data transmission and uses a WSN-based pipelined transmission method that leverages single-hop message transmission of a LoRa network for image transmission. Thus, it can not only eliminate the control message overhead for time synchronization, slot scheduling, and path establishment for pipelined image transmission in WSNs but also eliminate interferences within WSNs, such as data collisions and data and message collisions, during pipelined image transmission, thereby enabling high reliability and fast transmission.

Flexible Mechanical Sensors for Plant Growth Monitoring: An Emerging Area for Smart Agriculture.

The last decade has seen significant progress in the development of flexible electronics and sensors, particularly for display technologies and healthcare applications. Advancements in scalable manufacturing, miniaturization, and integration have further extended the use of this new class of devices to smart agriculture, where multimodal sensors can be seamlessly attached to plants for continuous and remote monitoring. Among the various types of sensing devices for agriculture, flexible mechanical sensors have emerged as promising candidates for monitoring vital parameters, including growth rates and water flow, providing a new avenue for understanding plant health and growth under varied environmental conditions.

Factors Associated with the Prolonged Use of Donor Human Milk at the Da Nang Hospital for Women and Children in Vietnam.

Background And Objectives: Donor human milk (DHM) from a human milk bank (HMB) is used to feed low-birthweight (LBW) and preterm infants when mothers cannot provide their own breastmilk. The misuse of DHM could interfere with mothers' breastmilk and weaken breastfeeding efforts. This study aimed to identify factors behind prolonged DHM usage during the first six years of Vietnam's first HMB.

Vitamin B, B, and B Intakes and Risk of Gastric Cancer: Findings from a Case-Control Study.

Background/objectives: Gastric cancer is one of the leading malignancies worldwide. B vitamins play important roles in DNA synthesis and methylation because they are considered co-enzymes in one-carbon metabolism. There is inconclusive evidence regarding the associations between dietary vitamins B, B, and B with the risk of gastric cancer in different epidemiologic studies.

Newcastle Disease Virus-Vectored African Swine Fever Virus Antigen Cocktail Delays the Onset of ASFV-SY18 but Is Not Protective.

African Swine Fever (ASF) is a highly contagious viral disease threatening the global pig industry. Currently, only two gene-deleted live attenuated vaccines are approved, exclusively in Vietnam, and their long-term effectiveness and safety are unproven, prompting the need for safer alternatives. This study assessed a cocktail of African Swine Fever Virus (ASFV) antigens delivered via a recombinant Newcastle Disease Virus (rNDV) vector against the genotype II ASFV-SY18.