A study on possible risk factors for progressive supranuclear palsy in southern part of India.

The etiological factors leading to progressive supranuclear palsy (PSP) are poorly understood. This study aims to evaluate the role of various risk factors in patients with PSP. A case-control study was conducted over a period of two years from March 2016 to March 2018.

Etiologies and Risk Factors of Anterior and Posterior Circulation Strokes: A Comparison Study From South India.

Introduction: While anterior and posterior circulation strokes share most pathophysiological mechanisms, there is concern that significant differences may exist in some etiopathogenic factors. This study aims to compare the etiologies and risk factors of patients with anterior and posterior circulation strokes to ascertain if the operating mechanisms are any different and warrant different interventions.

Methods: A retrospective study compared the etiologies, risk factors, and stroke severity of 350 patients diagnosed with either anterior circulation infarcts (ACI) or posterior circulation infarcts (PCI) confirmed by magnetic resonance imaging.

A Cross-Sectional Study of Clinical Spectrum and Outcome of Pure Midbrain Strokes.

Background: Pure mesencephalic infarcts are uncommon, the main clinical manifestations being oculomotor signs and ataxia.

Objectives: Primary objective was to determine the incidence of pure midbrain strokes. We also evaluated the clinical spectrum, syndromes, arterial territories involved, risk factors, and outcome at 3 months.

Theoretical Insights into the Structural and Optical Properties of D-π-A-based Cyanostilbene Systems of α and β Variants.

The π-conjugated organic molecules containing cyanostilbene motifs have been extensively investigated due to their great potential applications in several optoelectronic and biological fields. Developing efficient molecules in this respect requires strategic structural engineering and a deep understanding of the structure-property relationship at the molecular level. In this context, understanding the impact of positional isomerism in cyanostilbene systems is a fundamental aspect of designing desired materials with improved photophysical properties.

Intramolecular Charge Transfer and Stimuli-Responsive Emission in Cholesterol-Appended Phenothiazine-Cyanostyryl-Based Donor-Acceptor Systems.

Organic fluorescent molecules have received considerable attention owing to their various optoelectronic applications. Herein, we report the design and synthesis of two cholesterol-functionalized cyanostyrene-phenothiazine-based D-π-A systems that are emissive in both the solution and solid states. The newly synthesized cholesterol-appended phenothiazine-cyanostyrene diads and vary in the -alkylation of phenothiazine, respectively, with─ and─ chains.

A study to determine the effect of hydroxychloroquine (HCQ) on central corneal thickness (CCT) in patients with rheumatoid arthritis (RA).

Purpose: Corneal thinning is common in rheumatoid arthritis (RA), thereby affecting the central corneal thickness (CCT). Effect of hydroxychloroquine (HCQ) in RA has abounding literature on retinal toxicity, but there is lack of data on its corneal effects.

Methods: A cross-sectional study was carried out to compare CCT in RA patients before treatment initiation (Group 1) with CCT in those on HCQ for ≥3 months (Group 2).

Compositional induced structural phase transitions in (1 - x)(KNa)NbO-x(BaSr)TiO ferroelectric solid solutions.

Ferroelectric materials exhibiting switchable and spontaneous polarization have strong potential to be utilized in various novel electronic devices. Solid solutions of different perovskite structures induce the coexistence of various phases and enhance the physical functionalities around the phase coexistence region. The construction of phase diagrams is important as they describe the material properties, which are linked to the underpinning physics determining the system.

Internet of Things Framework for Oxygen Saturation Monitoring in COVID-19 Environment.

The pandemic/epidemic of COVID-19 has affected people worldwide. A huge number of lives succumbed to death due to the sudden outbreak of this corona virus infection. The specified symptoms of COVID-19 detection are very common like normal flu; asymptomatic version of COVID-19 has become a critical issue.

Design and synthesis of endocannabinoid enzyme inhibitors for ocular indications.

A small library of FAAH and dual FAAH/MAGL inhibitors designed for peripheral selectivity were targeted. Of these compounds, three were identified to have desirable FAAH inhibition and reduced permeability in a PAMPA assay. Those three compounds were advanced into a MAGL inhibitor assay and one was found to be a relative selective FAAH inhibitor, FAAH to MAGL IC ratio of 1:27, and one was found to be more characteristic of a true dual enzyme inhibitor, FAAH to MAGL IC ratio of 1:4.

Hyperglycemia-induced seizures - Understanding the clinico- radiological association.

Objectives: To highlight the typical magnetic resonance imaging (MRI) findings in hyperglycemia-induced seizures and compare the results with similar previous studies with a brief mention of pathophysiological mechanisms.

Materials And Methods: This retrospective study included medical and imaging records of six consecutive patients with hyperglycemia-induced seizures. The data analysis included a clinical presentation and biochemical parameters at admission.

Enhanced functional properties of soft polymer-ceramic composites by swift heavy ion irradiation.

The physical and chemical properties of soft polymer-ceramic composites with 50 MeV swift heavy, Li3+ ion irradiation were studied. A solution-casting technique was employed to synthesize free standing, flexible composite films of ferroelectric polymer PVDF and ferroelectric ceramic BNBT mixtures with 0-3 connectivity. However, only 35 wt% ceramic was chosen for the study as it showed the highest dielectric constant and enhanced ferroelectric properties without irradiation.

Ovarian Teratoma presenting as Anti NMDAR Antibody Negative Limbic Encephalitis.

Anti NMDA receptor (NMDAR) antibody mediated limbic encephalitis is the most common type of autoimmune encephalitis. Nearly half of the females presenting with anti NMDAR encephalitis have associated ovarian teratoma. Almost all of them have positive anti NMDAR antibody.

Molecular Crankshaft Effect Converting Piston-like Molecular Motion to Continuous Rotation of Macro Objects.

A molecular system inducing an accumulative unidirectional rotation motion of glass flakes with about 100 μm in size is introduced. The molecular system is a chiral nematic liquid crystal containing a chiral azobenzene derivative which shows a reversible E- Z photoisomerization accompanying a large helical twisting power change. A film of the molecular system shows different texture change paths upon UV and visible light irradiations inducing " E to Z" and " Z to E" photoisomerizations, respectively, of the chiral azobenzene dopant.

The effect of inhaled steroids on the intraocular pressure.

Background: Steroids are known to play a role in the pathogenesis of glaucoma, but little is known about the effect of inhaled corticosteroids (ICS). The purpose of this study was to investigate whether there is a clinically significant association between inhalational steroids and intraocular pressure (IOP).

Methods: This was a cross-sectional, case-control study performed at St John's Medical College, Bengaluru, India, from October 2013 to July 2015 of 200 patients using 800 mcg of budesonide or its equivalent dose of ICS and 200 healthy controls not using any form of steroids.

Improved Location Estimation in Wireless Sensor Networks Using a Vector-Based Swarm Optimized Connected Dominating Set.

Location estimation in wireless sensor networks (WSNs) has received tremendous attention in recent times. Improved technology and efficient algorithms systematically empower WSNs with precise location identification. However, while algorithms are efficient in improving the location estimation error, the factor of the network lifetime has not been researched thoroughly.

Modeling of the surface plasmon resonance tunability of silver/gold core-shell nanostructures.

Tunable plasmonic noble metal nanoparticles are indispensable for chemical sensors and optical near field enhancement applications. Laser wavelengths within the absorption spectrum of the nanoparticle and Localized Surface Plasmon Resonances (LSPR) in the visible and near infrared range are the key points to be met for the successful utilization in the field of aforementioned high sensitivity sensors. This way, Surface Enhanced Raman Spectroscopy (SERS) has been pushed to the sensitivity level of single molecule.

Susceptibility-weighted angiography and diffusion-weighted imaging in posterior reversible encephalopathy syndrome - Is there an association between hemorrhage, cytotoxic edema, blood pressure and imaging severity?

Purpose: To assess the significance of association and possible correlation between hemorrhage, cytotoxic edema, blood pressure and imaging severity in posterior reversible encephalopathy syndrome (PRES).

Materials And Methods: This retrospective study included the medical and imaging records of 35 consecutive patients with PRES. The clinical data analysis included the highest recorded blood pressure (BP) on the day of the ictus, MRI including spin-echo echo planar diffusion-weighted imaging (DWI), susceptibility weighted angiography (SWAN) and conventional sequences.

A Complementary Metal Oxide Semiconductor Process-Compatible Ferroelectric Tunnel Junction.

In recent years, experimental demonstration of ferroelectric tunnel junctions (FTJ) based on perovskite tunnel barriers has been reported. However, integrating these perovskite materials into conventional silicon memory technology remains challenging due to their lack of compatibility with the complementary metal oxide semiconductor process (CMOS). This communication reports the fabrication of an FTJ based on a CMOS-compatible tunnel barrier HfZrO (6 unit cells thick) on an equally CMOS-compatible TiN electrode.