Publications by authors named "Sen K"

We have grown (111)- and (001)-oriented NiO thin films on (0001)-Sapphire and (001)-MgO substrates using pulsed laser deposition (PLD), respectively. DC magnetic susceptibility measurements underline that the Néel temperatures of the samples are beyond room-temperature. This is further confirmed by the presence of two-magnon Raman scattering modes in these films in ambient conditions.

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Background: Lipoyl transferase 2 is involved in the biosynthesis of lipoate. Lipoate is the cofactor for the glycine cleavage system and four dehydrogenase enzymes. Biallelic variants in LIPT2 causing severe neonatal encephalopathy was first described in 2017.

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Background: The prevalence of obesity is increasing worldwide and it is known to be associated with many postoperative complications, including infection. Patients' body fat distribution may vary and body mass index (BMI) does not provide sufficient information about adipose tissue thickness of the lower extremities. The aim of this study is to investigate the relationship between thigh diameters and early postoperative prosthesis-related joint infections (PJI) in patients who underwent arthroplasty.

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Desiccation tolerance is a complex biological phenomenon that allows certain plants to survive extreme dehydration and revive upon rehydration. Although significant progress has been made in understanding the physiological and molecular mechanisms involved in desiccation tolerance, recovery mechanisms after prolonged desiccation periods are enigmatic. Combining physiological, biochemical, transcriptomic and metabolomic approaches, we investigated the role of prolonged desiccation on recovery of Selaginella bryopteris.

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Introduction: Carbon dots (CDs), by virtue of their electrical and optical properties, emit intense light and fluorescence. They have attributes like photostability, high quantum yield (QY), high emission, and scalability. In the recent past, theranostic-CDs have been widely used in sensing, imaging, and medication administration.

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Article Synopsis
  • - Fast-spiking parvalbumin (PV)-positive cells are crucial for regulating activity in pyramidal neurons, and their malfunction is linked to various brain diseases.
  • - Researchers created a transgenic model to study the effects of overexpressing a schizophrenia-related gene in PV cells, revealing gender-specific changes in anxiety behavior and impairments in synaptic function in the prefrontal cortex (PFC).
  • - A computational model showed that these impairments lead to increased neural activity and communication issues, highlighting that disruptions in fast-spiking neurons are particularly harmful for circuits related to anxiety-like behavior.
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Lupeol, a triterpene derived from various plants, has emerged as a potent dietary supplement with extensive therapeutic potential. This review offers a comprehensive examination of lupeol's applications across diverse health conditions. By meticulously analyzing current scientific literature, we have synthesized findings that underscore lupeol's impact on cancer, diabetes, gastrointestinal disorders, neurological diseases, dermatological conditions, nephrological issues, and cardiovascular health.

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The present study deals with the in-silico analyses of several flavonoid derivatives to explore COVID-19 through pharmacophore modelling, molecular docking, molecular dynamics, drug-likeness, and ADME properties. The initial literature study revealed that many flavonoids, including luteolin, quercetin, kaempferol, and baicalin may be useful against SARS β-coronaviruses, prompting the selection of their potential derivatives to investigate their abilities as inhibitors of COVID-19. The findings were streamlined using in silico molecular docking, which revealed promising energy-binding interactions between all flavonoid derivatives and the targeted protein.

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Background: Myocardial bridging is a cardiac anomaly where a segment of epicardial coronary arteries runs through the myocardium and can rarely cause MI. Takotsubo syndrome is a stress-induced cardiomyopathy that can mimic MI. Catecholamine surge during stress can contribute to Takotsubo syndrome, but whether this surge can trigger an inconspicuous myocardial bridging to manifest symptomatically remains unclear, and alternately, whether a myocardial bridge might cause worsening of Takotsubo syndrome is also a matter that needs further research.

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Article Synopsis
  • Raman scattering is highlighted as a powerful tool for studying the dynamics of lattice, spin, and charge processes in magnetic materials, allowing researchers to analyze quasiparticles like magnons and fractionalized excitations.
  • The review provides background on these quasiparticles and explains how they can be detected through temperature-dependent Raman scattering techniques, along with methods to estimate magnetic interactions.
  • Examples of magnetic materials investigated include antiferromagnetic SrIrO, LaCuO, and ferromagnetic CrI monolayers, demonstrating the versatility of Raman scattering in exploring complex quantum behaviors in various systems.
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In recent decades, policy makers around the world have been working on implementing various technologies into healthcare, and the Covid19 pandemic fueled this process. The specialized technological solutions for telecare - the use of technologies for care at a distance - are often adopted by users in different ways than intended, or are abandoned if the users cannot find applications that are meaningful to them. However, beyond specialized healthcare technologies, people are incorporating mundane digital technologies into their (health)care practices.

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Article Synopsis
  • - The study analyzes the availability and quality of antenatal care (ANC) services in Bangladesh using data from the 2017 Bangladesh Health Facility Survey, finding that only 4.26% of health facilities provide quality ANC services.
  • - Rural health facilities have significantly lower readiness for ANC compared to urban ones, with community clinics and private hospitals also being less prepared than public facilities.
  • - The paper suggests policy changes such as more funding for healthcare, adherence to ANC guidelines, better monitoring of health facilities, and increased community awareness to enhance ANC quality and public health outcomes.
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Background: Acute metabolic crises in inborn errors of metabolism (such as urea cycle disorders, organic acidemia, maple syrup urine disease, and mitochondrial disorders) are neurological emergencies requiring management in the pediatric intensive care unit (PICU). There is a paucity of data pertaining to electroencephalograms (EEG) characteristics in this cohort. We hypothesized that the incidence of background abnormalities and seizures in this cohort would be high.

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Pituitary stalk interruption syndrome is a rare, congenital abnormality. Early identification and treatment can improve patient prognosis and quality of life and prevent adverse effect on growth and development. The patient described is an 8-year-old child with a history of short stature.

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Herein, we report a single step synthesis of highly fluorescent Graphene Quantum Dots (GQDs) using tryptophan and glycerol as precursors via pyrolysis. The morphological and functional characterization of the prepared GQDs was performed using PXRD, FTIR, TEM, XPS and zeta potential measurements. The prepared GQDs found their practical application in ultrasensitive detection of an emerging potential cancer biomarker, HO, by exploiting the fluorescence quenching behaviour of HO.

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Shalgam is a fermented product characterized by its color and aroma compounds. However, there is no standard regarding the amount of use of purple carrot, which is the major raw material in production and affects the fermentation and aroma compounds of the product. This present research was designed to examine the effect of purple carrot concentrations on aroma compounds, which are one of the most important characteristics that reflect the quality characteristics of shalgam and affect consumer preferences.

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Water remediation, acknowledged as a significant scientific topic, guarantees the safety of drinking water, considering the diverse range of pollutants that can contaminate it. Among these pollutants, arsenic stands out as a particularly severe threat to human health, significantly compromising the overall quality of life. Despite widespread awareness of the harmful effects of arsenic poisoning, there remains a scarcity of literature on the utilization of biobased polymers as sustainable alternatives for comprehensive arsenic removal in practical concern.

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Energy extraction from quantum batteries by means of completely positive trace-preserving (CPTP) maps leads to the concept of CPTP-local passive states, which identify bipartite states from which no energy can be squeezed out by applying any CPTP map to a particular subsystem. We prove, for arbitrary dimension, that if a state is CPTP-local passive with respect to a Hamiltonian, then an arbitrary number of copies of the same state-including an asymptotically large one-is also CPTP-local passive. We show further that energy can be extracted efficiently from CPTP-local passive states employing noncompletely positive trace-preserving (NCPTP) but still physically realizable maps on the same part of the shared battery on which operation of CPTP maps were useless.

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Pseudo-TORCH Syndrome (PTS) encompasses a heterogeneous group of genetic disorders that may clinically and radiologically resemble congenital TORCH infections. These mimickers present with overlapping features manifested as intracranial and systemic abnormalities. Collagen type IV alpha 1 chain (COL4A1)-related diseases, characterized by autosomal dominant inheritance, exhibit a diverse phenotypic spectrum involving cerebrovascular, renal, ophthalmological, cardiac, and muscular abnormalities.

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Diabetic retinopathy is governed by abnormal apoptosis, increased capillary pressure, and other linked pathology that needs an efficient treatment by multitargeted approaches. Thus, the current study aimed to explore the potential of inhibition of targeted enzymes (DPP4, ACE-2, and aldose reductase) and free radical scavenging capabilities of selected compounds (nafronyl or naftidrofuryl) through in silico and in vivo investigations. Significant binding energies were observed in complexes of aldolase reductase, angiotensin type 1 receptor, and DPP4 against the nafronyl and sitagliptin more than -7.

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The exploration of natural products as potential agents for cancer treatment has garnered significant attention in recent years. In this comprehensive review, we delve into the diverse array of natural compounds, including alkaloids, carbohydrates, flavonoids, lignans, polyketides, saponins, tannins, and terpenoids, highlighting their emerging roles in cancer therapy. These compounds, derived from various botanical sources, exhibit a wide range of mechanisms of action, targeting critical pathways involved in cancer progression such as cell proliferation, apoptosis, angiogenesis, and metastasis.

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Background: Exome sequencing (ES) is a useful tool in diagnosing suspected mitochondrial disease but can miss pathogenic variants for several reasons. Additional testing, such as muscle biopsy or biochemical testing, can be helpful in exome-negative cases.

Methods: We report a patient who presented with repeated episodes of lactic acidosis and failure to thrive.

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