Samendra P. Sherchan
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View article: Burden of Central Nervous System Cancer in the United States, 1990-2021
Burden of Central Nervous System Cancer in the United States, 1990-2021 Open
Importance Primary brain and central nervous system cancer (collectively referred to as CNS cancer) comprises 2% of all human cancers and poses significant health and economic challenges in the United States. Objective To analyze CNS cance…
View article: Naegleria fowleri and the future of surveillance: A one-health call to action
Naegleria fowleri and the future of surveillance: A one-health call to action Open
Naegleria fowleri causes primary amoebic meningoencephalitis (PAM), a rapidly fatal central nervous system infection acquired through nasal exposure to contaminated water. PAM cases are rare but increasingly reported across wider geographi…
View article: Implications of SARS‐CoV‐2 on current and future operation and management of wastewater systems
Implications of SARS‐CoV‐2 on current and future operation and management of wastewater systems Open
While researchers have acknowledged the potential role of environmental scientists, engineers, and industrial hygienists during this pandemic, the role of the water utility professional is often overlooked. The wastewater sector is critica…
View article: The Current Multicountry Monkeypox Outbreak: What Water Professionals Should Know
The Current Multicountry Monkeypox Outbreak: What Water Professionals Should Know Open
Recent water sector safety concerns during the COVID-19 pandemic highlight the need for industry-focused reviews of emerging pathogens to support evidence-based utility decision-making. Between May 7 and August 20, 2022, more than 41 358 c…
View article: Optimizing Deep Learning Models for Climate-Related Natural Disaster Detection from UAV Images and Remote Sensing Data
Optimizing Deep Learning Models for Climate-Related Natural Disaster Detection from UAV Images and Remote Sensing Data Open
This research study utilized artificial intelligence (AI) to detect natural disasters from aerial images. Flooding and desertification were two natural disasters taken into consideration. The Climate Change Dataset was created by compiling…
View article: Optimizing Deep Learning Models for Climate-Related Natural Disaster Detection from UAV images and Remote Sensing Data
Optimizing Deep Learning Models for Climate-Related Natural Disaster Detection from UAV images and Remote Sensing Data Open
This research project involves a comprehensive approach to utilizing artificial intelligence (AI), machine learning (ML), & deep learning (DL), for detecting climate change related natural disasters such as flooding/desertification fro…
View article: An update on adverse health effects from exposure to PM2.5
An update on adverse health effects from exposure to PM2.5 Open
The impact of fine particulate matter (PM2.5) on public health has become a global concern due to the mortality and morbidity it entails. Pathophysiological and epidemiological studies have demonstrated an association between PM2.5 and res…
View article: Application of Skimmed-Milk Flocculation Method for Wastewater Surveillance of COVID-19 in Kathmandu, Nepal
Application of Skimmed-Milk Flocculation Method for Wastewater Surveillance of COVID-19 in Kathmandu, Nepal Open
Wastewater surveillance (WS) has been used globally as a complementary tool to monitor the spread of coronavirus disease 2019 (COVID-19) throughout the pandemic. However, a concern about the appropriateness of WS in low- and middle-income …
View article: Multiple pathogen contamination of water, hands, and fomites in rural Nepal and the effect of WaSH interventions
Multiple pathogen contamination of water, hands, and fomites in rural Nepal and the effect of WaSH interventions Open
Water, Sanitation, and Hygiene (WaSH) interventions are the most effective in reducing diarrheal disease severity and prevalence. However, very few studies have investigated the effectiveness of WaSH intervention in reducing pathogen prese…
View article: Wastewater Surveillance of SARS-CoV-2 RNA in a Prison Facility
Wastewater Surveillance of SARS-CoV-2 RNA in a Prison Facility Open
Prison populations are unlikely to have access to prompt, effective medical care as the general population. Therefore, vaccination and effective surveillance systems have been recommended to mitigate coronavirus disease 2019 (COVID-19) tra…
View article: A Call to Wastewater Researchers to Support Phage Therapy in the Global Fight against Antibiotic Resistance
A Call to Wastewater Researchers to Support Phage Therapy in the Global Fight against Antibiotic Resistance Open
ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTA Call to Wastewater Researchers to Support Phage Therapy in the Global Fight against Antibiotic ResistanceOcean Thakali*Ocean ThakaliDepartment of Civil Engineering, University of Ottawa, Otta…
View article: Zooming in on the intracellular microbiome composition of bacterivorous <i>Acanthamoeba</i> isolates
Zooming in on the intracellular microbiome composition of bacterivorous <i>Acanthamoeba</i> isolates Open
Acanthamoeba, a free-living amoeba in water and soil, is an emerging pathogen causing severe eye infection known as Acanthamoeba keratitis. In its natural environment, Acanthamoeba performs a dual function as an environmental heterotrophic…
View article: Surveillance of <i>Naegleria fowleri</i> in Louisiana's public water systems
Surveillance of <i>Naegleria fowleri</i> in Louisiana's public water systems Open
The free-living amoeba Naegleria fowleri (Nf) inhabits soil and natural waters worldwide: it is thermophilic and thrives at temperatures up to 45 °C and in a multitude of environments. Three deaths in Louisiana were attributed to primary a…
View article: Wastewater-based epidemiology predicts COVID-19-induced weekly new hospital admissions in over 150 USA counties
Wastewater-based epidemiology predicts COVID-19-induced weekly new hospital admissions in over 150 USA counties Open
Although the coronavirus disease (COVID-19) emergency status is easing, the COVID-19 pandemic continues to affect healthcare systems globally. It is crucial to have a reliable and population-wide prediction tool for estimating COVID-19-ind…
View article: Detection of bla kpc gene among carbapenemase producing Klebsiella pneumoniae isolated from different clinical specimens at tertiary care hospital of Nepal
Detection of bla kpc gene among carbapenemase producing Klebsiella pneumoniae isolated from different clinical specimens at tertiary care hospital of Nepal Open
Background Klebsiella pneumoniae infections have become a major cause of hospital acquired infection worldwide with the increased rate of acquisition of resistance to antibiotics. Carbapenem resistance mainly among Gram negative is an ongo…
View article: Classifying Building Roof Damage Using High Resolution Imagery for Disaster Recovery
Classifying Building Roof Damage Using High Resolution Imagery for Disaster Recovery Open
Post-hurricane damage assessments are often costly and time-consuming. Remotely sensed data provides a complementary method of data collection that can be completed comparatively quickly and at relatively low cost. This study focuses on 15…
View article: The Reduction of SARS-CoV-2 RNA Concentration in the Presence of Sewer Biofilms
The Reduction of SARS-CoV-2 RNA Concentration in the Presence of Sewer Biofilms Open
Wastewater surveillance has been widely used to track the prevalence of SARS-CoV-2 in communities. Although some studies have investigated the decay of SARS-CoV-2 RNA in wastewater, understanding about its fate during wastewater transport …
View article: HABs <i>Karenia brevis</i> and <i>Pseudo-nitzschia</i> pre- and post-Hurricane Michael
HABs <i>Karenia brevis</i> and <i>Pseudo-nitzschia</i> pre- and post-Hurricane Michael Open
Increased occurrences of harmful algal blooms (HAB) in the Gulf of Mexico, and even worldwide, yield concern for increases in brevetoxin exposure leading to respiratory illness or even death, highlighting the need for extensive scientific …
View article: Tracing COVID-19 Trails in Wastewater: A Systematic Review of SARS-CoV-2 Surveillance with Viral Variants
Tracing COVID-19 Trails in Wastewater: A Systematic Review of SARS-CoV-2 Surveillance with Viral Variants Open
The emergence of new variants of SARS-CoV-2 associated with varying infectivity, pathogenicity, diagnosis, and effectiveness against treatments challenged the overall management of the COVID-19 pandemic. Wastewater surveillance (WWS), i.e.…
View article: Wastewater-based epidemiology predicts COVID-19-induced hospital and ICU admission numbers in over 100 USA counties
Wastewater-based epidemiology predicts COVID-19-induced hospital and ICU admission numbers in over 100 USA counties Open
With the ease of coronavirus disease (COVID-19) emergency status globally, a population-wide low-cost prediction for COVID-19-induced hospitalization and intensive care unit (ICU) admission numbers is essential for healthcare systems. For …
View article: Remotely sensed measures of Hurricane Michael damage and adverse perinatal outcomes and access to prenatal care services in the Florida panhandle
Remotely sensed measures of Hurricane Michael damage and adverse perinatal outcomes and access to prenatal care services in the Florida panhandle Open
Background Studies of effects of hurricanes on perinatal outcomes often rely on approximate measures of exposure. This study aims to use observed damage from aerial imagery to refine residential building damage estimates, evaluate the popu…