scholarly journals Supercapacitance/Resistance Behaviors of Helminth Eggs as Reliable Recognition and Direct Differentiation Probe

2021 ◽  
Vol 9 ◽  
Author(s):  
Ruhollah Shaali ◽  
Mohammad Mahdi Doroodmand ◽  
Mohammad Moazeni
Keyword(s):  
Fasciola Hepatica ◽  
High Energy ◽  
Rapid Identification ◽  
Large Power ◽  
Taenia Multiceps ◽  
Parascaris Equorum ◽  
Direct Differentiation ◽  
Dicrocoelium Dendriticum ◽  
Helminth Eggs ◽  
Moniezia Expansa

Parasitic helminths are usually known as undesired pathogens, causing various diseases in both human and animal species. In this study, we explore supercapacitance/resistance behaviors as a novel probe for rapid identification and direct differentiation of Fasciola hepatica, Parascaris equorum (with and without larvae), Dicrocoelium dendriticum, Taenia multiceps, and Moniezia expansa eggs. This claim is attributed to some characteristics, such as grave supercapacitance/area, high-energy storage/area, large power/egg, huge permittivity, and great electrical break-down potential, respectively (Fasciola hepatica: 2,158, 0.485, 2.7 × 10–3, 267, 52.6, Parascaris equorum without larvae: 2,825, 0.574, 3.0 × 10–3, 351, 68.4, Parascaris equorum with larvae: 4,519, 0.716, 2.4 × 10–3, 1.96, 97.6, Dicrocoelium dendriticum: 1,581, 0.219, 2.8 × 10–3, 1.96, 48.8, Moniezia expansa: 714, 0.149, 2.2 × 10–3, 0.88, 35.2, Taenia multiceps: 3,738, 0.619, 4.7 × 10–3, 4.63, 84.4), and durable capacitance up to at least 15,000 sequential cycles at different scan rates (between 2.0 × 10−4 and 120.0 V s−1) as well as highly differentiated resistance between 400 and 600 Ω. These traits are measured by the “Blind Patch-Clamp” method, at the giga ohm sealed condition (6.18 ± 0.12 GΩ cm−1, n = 5). Significant detection ranges are detected for each capacitance and resistance with gradient limits as large as at least 880 to 1,000 mF and 400 to 600 Ω depending on the type of helminth egg. The effect of water in the structure of helminth eggs has also been investigated with acceptable reproducibility (RSD 7%–10%, n = 5). These intrinsic characteristics would provide novel facilitators for direct helminth egg identification in comparison with several methods, such as ELISA, PCR, and microscopic methods.

1D nanorod-like porous carbon with simultaneous high energy and large power density as a supercapacitor electrode material

RSC Advances ◽  
2016 ◽  
Vol 6 (56) ◽  
pp. 51332-51336 ◽  
Author(s):  
Yanli Tan ◽  
Qiuming Gao ◽  
Jiandong Xu ◽  
Zeyu Li
Keyword(s):  
Power Density ◽  
Porous Carbon ◽  
High Energy ◽  
Aqueous System ◽  
Porous Carbon Material ◽  
Koh Activation ◽  
Supercapacitor Electrode ◽  
Large Power ◽  
System P ◽  
Porous Coordination Polymer

1D nanorod-like porous carbon material synthesized by pyrolysis of porous coordination polymer following with KOH activation exhibits long cyclic stability and simultaneous high energy and large power density in the 6 M KOH aqueous system.

scholarly journals HAEMONCHUS CONTORTUS, FASCIOLA HEPATICA И DICROCOELIUM DENDRITICUM КОД СРНА :CAPREOLUS CAPREOLUS; У РЕПУБЛИЦИ СРПСКОЈ

2018 ◽  
Vol 16 (1) ◽  
Author(s):  
О. Стевановић ◽  
С. Николић ◽  
Р. Бабић ◽  
Д. Недић ◽  
Ж. Секулић ◽  
...  
Keyword(s):  
Haemonchus Contortus ◽  
Fasciola Hepatica ◽  
Capreolus Capreolus ◽  
Dicrocoelium Dendriticum

У овом раду описано је присуство паразитских врста Haemonchus contortus,Fasciola hepatica и Dicrocoelium dendriticum код срнеће дивљачи у РепублициСрпској. У периоду од 1. јануара 2015. године до 20. августа 2016. године изв -ршено је 17 обдукција обичне срне (Capreolus capreolus). Haemonchus contortusје установљен код шест срна, Fasciola hepatica код једне срне и Dicrocoeliumdendriticumкод двије срне. Локације одстријељених и угинулих срна код којихсу установљени наведени паразити у ловишту су у раду означене поопштинама, примjеном методе геоинформатичког система - ГИС. Присуство иналаз великог и малог метиља немају већи клиничко-патолошки значај, докинфекција нематодом Haemonchus contortus има већи утицај на здравственистатус срна у Републици Српској.

scholarly journals Detection of Pathogenic Waterborne Parasites in Treated Wastewater of Rada'a City -Yemen

2020 ◽  
Vol 1 (1) ◽  
pp. 30-39
Author(s):  
Faisal Mohammed Al-Nihmi ◽  
Akram Ahmed Salih ◽  
Jalal Qazzan ◽  
Bakeel Radman ◽  
Warda Al-Woree ◽  
...  
Keyword(s):  
Giardia Lamblia ◽  
Treatment Process ◽  
Fasciola Hepatica ◽  
Treatment Plant ◽  
Treated Wastewater ◽  
Enterobius Vermicularis ◽  
Helminth Eggs ◽  
Treated Sewage ◽  
Wastewater Samples ◽  
Chamber Size

Purpose: The aim of this study is to detect the presence of waterborne parasites in the treated wastewater in Rada'a city. Study Design: An Experimental Research Design. Materials and Methods: Waterborne parasites in the collected samples were concentrated using formol ether and zinc sulphate techniques and then microscopically analyzed to identify protozoa and helminth eggs. Fifteen treated sewage samples were randomly collected from different positions of wastewater treatment plant in three different months of 2019 (May, June and August) with three replications. Each sample was collected in one-litre volume and recorded as original sample. Parasite analysis was done using the McMaster worm egg counting slides with chamber size of 0.3 mm. Results: In this study, Giardia lamblia was found in a high percentage in comparison to other parasites, followed by Entamoeba histolytica, Entamoeba coli.  The majority of parasite eggs in the treated wastewater samples were related to Hookworm and Ascaris lumbricoide followed by Taenia saginat and Enterobius vermicularis. Furthermore, Cryptosprodium oocyst and Fasciola hepatica eggs were rarely detected. Conclusion: The observed pattern of contamination demonstrated that the quantity of parasites in sewage after treatment exceeded the permitted levels and it is necessary to modify the treatment process of wastewater to prevent the possible spread of parasitic contamination.

Prevalence and diversity of intestinal helminth eggs in pit latrine sludge of a tropical urban area

2016 ◽  
Vol 6 (4) ◽  
pp. 622-630 ◽  
Author(s):  
Wilfried Arsène Letah Nzouebet ◽  
Ives Magloire Kengne Noumsi ◽  
Andrea Rechenburg
Keyword(s):  
Disease Transmission ◽  
Fasciola Hepatica ◽  
Oxygen Demand ◽  
Intestinal Helminth ◽  
Chemical Parameters ◽  
Protection Measures ◽  
Helminth Eggs ◽  
Physico Chemical ◽  
High Prevalence ◽  
Pit Latrine

The aim of the study was to investigate the prevalence and diversity of helminth eggs in pit latrine sludge in Yaounde, Cameroon. A total of 30 faecal sludge samples were collected in various latrines and analysed for physico-chemical parameters and helminth eggs' characterization was undertaken using standard protocols. Effects of physico-chemical parameters (pH, temperature, salinity, electrical conductivity, chemical oxygen demand, biochemical oxygen demand for 5 days, nitrogen ammonia, dry matter (DM), moisture content) on the parasite eggs were addressed. The total helminth egg concentration in the samples ranged from 8.5 eggs/g DM to a maximum of 264.5 eggs/g DM with a median of 81.1 eggs/g DM. Nematodes represented 67% of the total species followed by Trematodes and Cestodes. The helminth species with high prevalence in the sludge were Ascaris lumbricoides (41.4 eggs/g DM), Ankylostoma duodenale (31.5 eggs/g DM), Fasciola hepatica (34.9 eggs/g DM) and Trichuris trichiura (32.5 eggs/g DM). The physico-chemical parameters had no effect on the parasite concentration. Due to the high helminth egg concentrations in positive samples analysed, the need for proper health and environmental protection measures has to be stressed to prevent helminthic disease transmission due to untreated sludge discharge into the environment after pit latrine emptying or via direct agricultural use.

Carbon-based materials for lithium-ion capacitors

2019 ◽  
Vol 3 (7) ◽  
pp. 1265-1279 ◽  
Author(s):  
Xiaojun Wang ◽  
Lili Liu ◽  
Zhiqiang Niu
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Rate ◽  
High Energy Density ◽  
Large Power ◽  
Excellent Stability ◽  
Carbon Based

Lithium-ion capacitors (LICs) can deliver high energy density, large power density and excellent stability since they possess a high-capacity battery-type electrode and a high rate capacitor-type electrode.

Variable-Pressure Secondary-Control with Power Recovery for Loading Hydraulic Driving Head of Rotary Drilling Rig

2013 ◽  
Vol 765-767 ◽  
pp. 1881-1888
Author(s):  
Wan Guo Li ◽  
Yong Ling Fu ◽  
Xiao Ye Qi ◽  
Juan Chen ◽  
Jun Gong Ma
Keyword(s):  
Dynamic Performance ◽  
High Energy ◽  
Variable Pressure ◽  
Secondary Control ◽  
Loading Test ◽  
Rotary Drilling ◽  
Large Power ◽  
Energy Feedback ◽  
Drilling Rig ◽  
Power Recovery

A technical challenge for large power loading test device is how to achieve both of high loading dynamic performance and high energy efficiency, consequently power recovery and reuse technology should be applied. Hydrostatic secondary control has reasonable dynamic performance for loading and benefits power recovery. However conventional secondary control based on constant pressure network (CPSCS) can still be further improved when using in loading test bench for hydraulic driving head. This paper proposes hydrostatic variable-pressure secondary-control (VPSCS), for which the corresponding system is designed. Subsequently by simulation with AMESim, the dynamic performance and energy feedback or recovery efficiency of CPSCS and VPSCS are analyzed and evaluated, and finally the works in the next step are presented. The conclusion shows VPSCS, compared with CPSCS, improves energy feedback efficiency by 18%~30% but has worse wave shape of load torque when using the servo pressure valve set designed preliminarily.

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