Faculty perspectives of small group teaching experience in medical school in Tamil Nadu.

Background: The small group teaching (SGT) is gaining popularity in medical education since it improves the student's thinking capacity and aids knowledge retention. Several studies have been conducted to analyze students' attitudes regarding SGT. Faculty, on the other hand, have mixed perception about SGT methodology.

Optimal Facial Feature Based Emotional Recognition Using Deep Learning Algorithm.

Humans have traditionally found it simple to identify emotions from facial expressions, but it is far more difficult for a computer system to do the same. The social signal processing subfield of emotion recognition from facial expression is used in a wide range of contexts, particularly for human-computer interaction. Automatic emotion recognition has been the subject of numerous studies, most of which use a machine learning methodology.

CuO-TiO-Chitosan-Berbamine Nanocomposites Induce Apoptosis through the Mitochondrial Pathway with the Expression of P53, BAX, and BCL-2 in the Human K562 Cancer Cell Line.

In this study, cells from human Chronic Myelogenous Leukemia (K562) were cultivated with CuO-TiO-Chitosan-Berbamine nanocomposites. We examined nanocomposites using XRD, DLS, FESEM, TEM, PL, EDAX, and FTIR spectroscopy, as well as MTT for cytotoxicity, and AO/EtBr for apoptotic morphology assessment. The rate of apoptosis and cell cycle arrests was determined using flow cytometry.

An In Vitro Assessment of Marginal Accuracies in Copings Fabricated With Two Dissimilar Alloys: An Original Research Study.

Background: Marginal accuracy is one of the serious factors that play a key role in the overall success of prostheses. It is openly associated with marginal activities of microorganisms, which may develop micro-leakage and other problems. Therefore, this in vitro study was conducted to assess marginal accuracies in copings fabricated with two different alloys used in fixed partial dentures.

Current perspectives on the role of liver transplantation for Langerhans cell histiocytosis: A narrative review.

Langerhans cell histiocytosis (LCH) is a malignant disease of the histiocytes involving various organ systems. The spectrum of liver involvement in LCH ranges from mild transaminitis to end-stage liver disease. The hallmark of hepatic LCH is secondary sclerosing cholangitis, which manifests due to a progressive destruction of the biliary tree by malignant histiocytes.

Bio-approach: preparation of RGO-AgNPs on cotton fabric and interface with sweat environment for antibacterial activity.

This study aims to develop a reduced graphene oxide (RGO)-silver nanoparticles (AgNPs) coating on the cotton fabric (CT) surface using photoreduction with a hydrothermal process and evaluate the antibacterial activity in a sweat environment. An ureolytic bacterium of Bacillus subtilis (HM475276) was used to generate ammonia from synthetic urine. RGO-AgNPs were synthesized on the CT surface using a moderate dosage of 1% silver ammonium complex.

Reactive Nitrogen Species and Male Reproduction: Physiological and Pathological Aspects.

Reactive nitrogen species (RNS), like reactive oxygen species (ROS), are useful for sustaining reproductive processes such as cell signaling, the regulation of hormonal biosynthesis, sperm capacitation, hyperactivation, and acrosome reaction. However, endogenous levels of RNS beyond physiological limits can impair fertility by disrupting testicular functions, reducing gonadotropin production, and compromising semen quality. Excessive RNS levels cause a variety of abnormalities in germ cells and gametes, particularly in the membranes and deoxyribonucleic acid (DNA), and severely impair the maturation and fertilization processes.

Efficient One-Pot Synthesis of TiO/ZrO/SiO Ternary Nanocomposites Using Leaf Extract for Enhanced Photocatalytic Dye Degradation.

A simple, efficient, and ecofriendly method was employed to synthesize TiO/ZrO/SiO ternary nanocomposites using leaf extract (PYLE) that shows improved photocatalytic and antibacterial properties. The characterization of the obtained nanocomposites was done by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, field-emission scanning electron microscopy (FE-SEM), and energy-dispersive X-ray spectroscopic (EDS) analysis. The synthesized ternary nanocomposites with nanoscale pore diameters were investigated for the elimination of Reactive Red 120 (RR120) dye.

Variation of cerebrospinal fluid in specific regions regulates focality in transcranial direct current stimulation.

Background: Conventionally, transcranial direct current stimulation (tDCS) aims to focalize the current reaching the target region-of-interest (ROI). The focality can be quantified by the dose-target-determination-index (DTDI). Despite having a uniform tDCS setup, some individuals receive focal stimulation (high DTDI) while others show reduced focality ("non-focal").

Characterization of petroleum degrading bacteria and its optimization conditions on effective utilization of petroleum hydrocarbons.

Hydrocarbon contamination is continuing to be a serious environmental problem because of their toxicity. Hydrocarbon components have been known to be carcinogens and neurotoxic organic pollutants. The physical and chemical methods of petroleum removal have become ineffective and also are very costly.

Comparative Study of the Efficacy of Advanced Platelet-rich Fibrin and Standard Platelet-rich Fibrin in Mandibular Third Molar Surgery.

Background: Disimpaction of mandibular of third molar is one of the commonest minor oral surgical procedures. Platelet-rich fibrin (PRF) plays a vital role in both hard and soft tissue healing. There are various subtypes of PRF used for different surgical sites.

Living Donor Liver Transplantation for Budd-Chiari Syndrome: A Propensity Score-Matched Analysis.

Introduction: There are unique technical and management challenges associated with living donor liver transplantation (LDLT) for Budd-Chiari Syndrome (BCS). The outcomes of LDLT for BCS in comparison to other indications remain unclear and warrant elucidation.

Methods: Data of 24 BCS patients who underwent LDLT between January 2012 and June 2019 were analyzed.

Incidental detection of paranasal sinuses abnormalities on CT imaging of the head in Saudi adult population.

The paranasal sinuses are hollowed, air-filled cavities surrounding the nasal cavity. Many pathological processes affect the sinuses, but inflammatory conditions are the commonest, even in asymptomatic patients who undergo head imaging for other indications showing one or more abnormalities of the sinuses. Our research aims to determine the prevalence of incidental paranasal sinuses abnormalities seen among patients who undergo head CT scanning.

Comparison of Microalbuminuria Status in Type 2 Diabetes Mellitus Patients With Chronic Periodontitis: A Cross-Sectional Study.

Background Diabetes has increased the risk for various other ailments in various organs of the body. This can be contributing to periodontitis also as it is the sixth complication related to diabetes mellitus. There is a bidirectional relationship between both.

Impact of Ga Ions on the Structure, Magnetic, and Optical Features of Co-Ni Nanostructured Spinel Ferrite Microspheres.

Co-Ni ferrite is one of the crucial materials for the electronic industry. A partial substitution with a rare-earth metal brings about modification in crystal lattice and broadens knowledge in the discovery of new magnetic material. Current work reports a Ga substitution in the Co-Ni ferrite with composition CoNiFeGaO (where x = 0.

Assessing the Impact of Meteorological Factors on COVID-19 Seasonality in Metropolitan Chennai, India.

Meteorological factors may influence coronavirus disease 2019 (COVID-19) transmission. Due to the small number of time series studies, the relative importance of seasonality and meteorological factors is still being debated. From March 2020 to April 2021, we evaluated the impact of meteorological factors on the transmission of COVID-19 in Chennai, India.

Nestin as a diagnostic and prognostic marker for combined hepatocellular-cholangiocarcinoma.

Background & Aims: Combined hepatocellular-cholangiocarcinoma (cHCC-CCA) is a rare primary liver cancer (PLC) associated with a poor prognosis. Given the challenges in its identification and its clinical implications, biomarkers are critically needed. We aimed to investigate the diagnostic and prognostic value of the immunohistochemical expression of Nestin, a progenitor cell marker, in a large multicentric series of PLCs.

Hyposalivation and oral candidiasis-A short review.

Oral candidiasis is an opportunistic fungal infection commonly encountered in immunocompromised individuals. The oral cavity harbours numerous microbes and along with immunity saliva also maintains oral health. The Candida species form biofilm over the tissue and prosthetic surfaces.

Prediction of Deleterious Single Nucleotide Polymorphism in S100A4 Metastatic Gene: Potential Early Diagnostic Marker.

S100A4 protein overexpression has been reported in different types of cancer and plays a key role by interacting with the tumor suppressor protein Tp53. Single nucleotide polymorphisms (SNP) in S100A4 could directly influence the biomolecular interaction with the tumor suppressor protein Tp53 due to their aberrant conformations. Hence, the study was designed to predict the deleterious SNP and its effect on the S100A4 protein structure and function.

Neurological complications in pediatric liver transplant recipients.

Introduction: There is paucity of data on neurological complications (NCs) and its predisposing factors, in pediatric liver transplant (PLT) recipients.

Methods: Records of seventy-one children who underwent LT between October 2018 and November 2019 were reviewed. Patients were categorized into group A: with NC and group B: without NC in the post-LT period.

Sensitive Non-Enzymatic Glucose Electrochemical Sensor Based on Electrochemically Synthesized PANI/Bimetallic Oxide Composite.

The development of a sensitive glucose monitoring system is highly important to protect human lives as high blood-glucose level-related diseases continue to rise globally. In this study, a glucose sensor based on polyaniline-bimetallic oxide (PANI-MnBaO) was reported. PANI-MnBaO was electrochemically synthesized on the glassy carbon electrode (GCE) surface.