Mesoporous NiFe2O4@g-C3N4-based p-n Heterostructures for Boosting Solar-Driven Photocatalytic Dye Degradation and Hydrogen Evolution.

Mass-fraction-optimized heterojunction composites featuring precisely engineered interfaces and mesoporous structures are crucial for improving light absorption, minimizing electron-hole recombination, and boosting overall catalytic efficiency. Herein, highly efficient mesoporous-NiFe2O4@g-C3N4 heterojunctions were developed by embedding p-type NiFe2O4 nanoparticles (NPs) within n-type porous ultrathin g-C3N4 (p-uCN) nanosheets. The optimized NiFe2O4@g-C3N4, loaded with 20wt% magnetic counterparts, exhibits exceptional photocatalytic methylene blue degradation, achieving the highest performance in both photocatalytic and photo-Fenton processes with rate constants of 0.

Quantum Limits of Covert Target Detection.

In covert target detection, Alice attempts to send optical or microwave probes to determine the presence or absence of a weakly reflecting target embedded in thermal background radiation within a target region, while striving to remain undetected by an adversary, Willie, who is co-located with the target and collects all light that does not return to Alice. We formulate this problem in a realistic setting and derive quantum-mechanical limits on Alice's error probability performance in entanglement-assisted target detection for any fixed level of her detectability by Willie. We demonstrate how Alice can approach this performance limit using two-mode squeezed vacuum probes in the regime of small to moderate background brightness, and how such protocols can outperform any conventional approach using Gaussian-distributed coherent states.

Rational Design of Mesoporous ZnFeO@g-CN Heterojunctions for Environmental Remediation and Hydrogen Evolution.

Mesoporous catalysts with a high specific surface area, accessible pore structures, and appropriate band edges are desirable for optimal charge transfer across the interfaces, suppress electron-hole recombination, and promote redox reactions at the active sites. The present study demonstrates the rational design of mesoporous ZnFeO@g-CN magnetic nanocomposites (MNCs) with different pore sizes and pore volumes following a combination of facile thermal itching and thermal impregnation methods. The MNCs preserve the structural, morphological, and physical attributes of their counterparts while ensuring their effectiveness and superior catalytic capabilities.

Brain abscess following kidney transplantation: A single centre observational study from North India.

Background: Amongst the infections in kidney transplant recipients, brain abscess represents an uncommon life-threatening complication. Mortality continues to be high despite improvements in diagnostics and therapeutics.

Method: We conducted an observational study, describing the incidence, presentation, implicating pathogen, management and outcome of brain abscess following kidney transplantation at our centre.

Kidney transplantation: The journey across a century.

The Journey of kidney transplantation began a century ago with animal experiments and xenotransplants. The initial attempts of human to human kidney transplant were made by Yuri Voronoy, Jean Hamburger and several others between 1930 and 40s, but most of these were unsuccessful. The first successful live related kidney transplant between identical twins was performed at the Brigham Hospital in Boston in December 1953, by Joseph Murray and John P.

Mn-Modified ZnO Nanoflakes for Optimal Photoelectrochemical Performance Under Visible Light: Experimental Design and Theoretical Rationalization.

Doping of zinc oxide (ZnO) with manganese (Mn) tunes midbandgap states of ZnO to enhance its optical properties and makes it into an efficient photoactive material for photoelectrochemical water splitting, waste removal from water, and other applications. We demonstrate that ZnO modified with 1 at. % Mn exhibits the best performance, as rationalized by experimental, structural, and optical characterization and theoretical analysis.

Enhancement of Photocatalytic and Photoelectrochemical Performance of ZnO by Mg Doping: Experimental and Density Functional Theory Insights.

Doped ZnO nanostructures have shown great potential for solar energy applications. Considering the compatible ionic radius, Mg atoms can be doped into ZnO at different concentrations. The current work reports a combined experimental and density functional theory study on the influence of the Mg dopant concentration on ZnO performance simultaneously for photocatalytic dye removal and photoelectrochemical water splitting.

Effect of treatment regimens in severe COVID pneumonia at an Indian tertiary care hospital: An observational, real-world study.

Background: Corticosteroids have attracted attention as a treatment option for severe Coronavirus disease (COVID-19). However, published data on steroid therapy is debatable, and real-world data is lacking. This study evaluated the effect of treatment regimens, especially Pulse steroid therapy (Injection Methyl Prednisolone 250 mg iv once a day for three days) in severe-COVID-19 pneumonia at an Indian tertiary care hospital.

Analysis of postoperative complications following elective arthroscopic surgeries of the knee- a retrospective cohort study.

Background: Since their introduction, arthroscopic procedures have been increasingly utilized for the treatment of knee pathologies, especially Anterior Cruciate Ligament (ACL) reconstruction. Reduction of post-operative morbidity, shortened hospital stay and recovery period have all been identified as the benefits of arthroscopy. However, despite tremendous increase in the number of these procedures done, the postoperative complications associated have been infrequently analyzed.

Optimal Gain Sensing of Quantum-Limited Phase-Insensitive Amplifiers.

Phase-insensitive optical amplifiers uniformly amplify each quadrature of an input field and are of both fundamental and technological importance. We find the quantum limit on the precision of estimating the gain of a quantum-limited phase-insensitive amplifier using a multimode probe that may also be entangled with an ancilla system. In stark contrast to the sensing of loss parameters, the average photon number N and number of input modes M of the probe are found to be equivalent and interchangeable resources for optimal gain sensing.

A single-center experience in use of tocilizumab in COVID-19 pneumonia in India.

Background: IL-6 receptor antagonist tocilizumab (TCZ) has been used in several reported studies in the treatment of COVID-19 pneumonia and pieces of evidence are still emerging.

Methods: All patients with COVID-19 pneumonia showing features of hyperinflammatory syndrome receiving TCZ at a tertiary care center in India were included in the study and a retrospective descriptive analysis was done.

Results: Between May 2020 to August 2020, 21 patients received TCZ out of which 13 survived and 8 died.

Peritoneal Dialysis Catheter Insertion by Nephrologist Using Minilaparotomy: Do Survival and Complications Vary in Obese?

Introduction: Peritoneal dialysis catheter (PDC) placement for chronic kidney disease (CKD) amongst overweight and obese patients is difficult owing to deeper operating field. Literature being discordant on survival and complications in this patient subset, we attempted to analyse this research question in Indian population.

Materials And Methods: We retrospectively analysed PDC inserted by nephrologist using surgical minilaparotomy for survivals and complications amongst 'overweight and obese' cohort ('O') at two tertiary care government hospitals in India, and compared results with normo-weight cohort ('N'), with 12-36 months follow-up.

A Study on the Safety of Percutaneous Tracheostomy in Patients with Severe Acute Respiratory Syndrome Novel Corona Virus 2 (SARS-nCoV2) Infection: A Single-Center Observational Cohort Study in a CoVID Intensive Care Unit.

Background: We studied the safety of percutaneous dilatational tracheostomy (PCDT) in severe acute respiratory syndrome novel coronavirus 2 (SARS-nCoV2).

Patients And Methods: From 01 March 20 to 30 November 2020, 1635 required hospital admission of which 145 (9%) required intensive (ICU) care. The primary outcomes are mortality and secondary outcomes were duration of invasive mechanical ventilation (IMV), length of stay (LOS) in ICU and hospital, and days required for decannulation.

Pneumoperitoneum needle vs. introducer needle: Comparison of complications and short-term outcomes in percutaneously inserted peritoneal dialysis catheters in naïve abdomens.

Percutaneous peritoneal dialysis catheter (PDC) insertion for continuous ambulatory peritoneal dialysis (CAPD) entails a higher risk of complications such as bowel injury, vascular injury, and catheter migration compared to the surgical insertions. We conducted a comparative analysis of two techniques of peritoneal entry for PDC insertion by Seldinger technique. We performed a retrospective review of 426 percutaneously inserted PDCs in nonobese naïve abdomens for CAPD at two tertiary care teaching hospitals in India over 6 years.

Reaching Out to the Millions: A 5 Key Messages Rapid IEC Campaign During the COVID-19 Pandemic.

The ongoing COVID-19 pandemic has necessitated providing populations with simple and relevant, actionable informational messages for them to be informed on individual and community level measures to combat the pandemic. Distilling guidance from various sources into simple actionable message themes in a short time frame should be the hallmark of any rapid health promotion campaign. We developed and disseminated actionable Information, Education and Communication (IEC) messages on prevention and control during the ongoing COVID-19 pandemic by selecting five key message themes of prevention.

Diabetes Mellitus and Hypertension Increase Risk of Death in Novel Corona Virus Patients Irrespective of Age: a Prospective Observational Study of Co-morbidities and COVID-19 from India.

Elderly people and people with co-morbidities have emerged as the most vulnerable group at risk of developing complications and succumbing to novel coronavirus (COVID-19) infection. We recorded the baseline demographic profile, baseline clinical and laboratory parameters, and prevalence of various co-morbidities and their effect on the prognosis of COVID-19 cases. We conducted a prospective observational study and analyzed baseline clinical and laboratory parameters and co-morbidities and their effect on severity and mortality in 710 COVID-19 cases.

Reinfection or Reactivation of Coronavirus-19 in Patients with Hematologic Malignancies: Case Report Series.

Infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been relentless. We are into the 10th month of the pandemic, and we are still getting surprised every day. Although neutralizing antibodies are generated in response to coronavirus disease-19 (COVID-19), these antibodies do not appear to confer lifelong immunity, as lately there have been reports from various parts of the world of reinfection with the virus, starting from Hong Kong, Belgium, and the USA.

Use of immunoadsorption columns in ABO-incompatible renal transplantation: A prospective study at a tertiary care center in India.

Background: We present our experience of ABO-incompatible renal transplant using immunoadsorption (IA) columns. We have compared efficacy of two commercially available columns.

Methods: This single-center prospective study was conducted at Army Hospital Research and Referral, Delhi.

Clinical Triaging in Cough Clinic Alleviates COVID-19 Overload in Emergency Department in India.

The importance of this study is the efficacy of "symptoms only" approach at a screening clinic for coronavirus disease 2019 (COVID-19) diagnosis in low- and middle-income countries (LMIC) setting. The objective of this study was to assess how efficiently primary care physicians at the screening clinic were able to predict whether a patient had COVID-19 or not, based on their symptom-based assessment alone. The current study is a cross-sectional retrospective observational study.

Cadaveric renal transplantation: Our experience at a tertiary care centre in India.

Background: Renal transplantation in developing countries like India is largely live donor transplantation. Cadaveric transplantation comprises <2% of all transplants in India.

Methods: Ninety-two cadaveric renal transplantations were included.

Acute kidney injury due to acute cortical necrosis following vivax malaria.

Malaria is a parasitic infection of global importance but has a high prevalence in the developing countries. Renal failure is a common complication of severe Plasmodium falciparum malaria and has been reported in up to 40% of all cases. Acute kidney injury (AKI), however, is not commonly associated with Plasmodium vivax infection.

Quantum-Limited Loss Sensing: Multiparameter Estimation and Bures Distance between Loss Channels.

The problem of estimating multiple loss parameters of an optical system using the most general ancilla-assisted parallel strategy is solved under energy constraints. An upper bound on the quantum Fisher information matrix is derived assuming that the environment modes involved in the loss interaction can be accessed. Any pure-state probe that is number diagonal in the modes interacting with the loss elements is shown to exactly achieve this upper bound even if the environment modes are inaccessible, as is usually the case in practice.

Role of Direct Antiviral Agents in Treatment of Chronic Hepatitis C Infection in Renal Transplant Recipients.

Background: Since the introduction of direct antiviral agents (DAAs), morbidity of HCV has considerably decreased but still no guidelines have been formulated in renal transplant recipients (RTRs). We studied efficacy and tolerability of direct antiviral agents in RTRs.

Methods: This prospective observational study was conducted at Army Hospital Research & Referral, Delhi, from June 2016 to May 2017.

Urinary tract infection in renal transplant recipients at a tertiary care center in India.

Our objective was to determine incidence, predisposing factors, and microbiological profile of urinary tract infection (UTI) in renal transplant recipients in our center. This was cross-sectional observational study, conducted at the Department of Nephrology, Army Hospital Research and Referral, Delhi, India. Two hundred and ten renal transplant recipients were studied over one year.

A rare presentation of nephrotic syndrome.

Nephrotic syndrome usually presents with oedema due to fluid accumulation in subcutaneous space. Renal subcapsular fluid accumulation is a rare presentation. We present a rare case of membranoproliferative glomerulonephritis which presented with bilateral subcapsular fluid collection and was successfully managed by percutaneous drainage and treating the underline pathology.