Articles Related to CH
Characterizations of Cu2FeSnSe4 Thin Films Synthesized from Nanoparticles Powder
Cu2FeSnSe4
(CFTSe) thin film were synthesized on glass substrate by thermal evaporation method at Ts=400° C, starting
from elemental powders mixed by a mechanical alloying process. The structural, morphological, compositional, optical and
electrical properties of CFTSe semiconductor have been investigated by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDAX), spectroscopic ellipsometry (SE) and Van Der Pauw technique, respectiv
The role of homologous serum eye drops in the management of scleral melting after proton beam therapy, a case report
To describe a case of a 39-years-old man with marked scleral thinning secondary to proton beam therapy for choroidal melanoma. Observations: The patient underwent multiple unsuccessful reconstructive surgical procedures complicated by failure and enucleation was finally suggested. However, he started improving following homologous serum drops administration
Prevalence and Risk factors of Stunting and Wasting among Under-Five-Aged Children in North Gondar Zone, Northern Ethiopia
Undernutrition is a leading cause of disease susceptibility, morbidity, and mortality in children. It is manifested in the form
of stunting and wasting. Wasting is an acute form of undernutrition that indicates a recent food shortage and/or infectious
diseases that lead to rapid and severe weight loss. The current study aimed to assess the prevalence and associated factors of
stunting and wasting among under-five-aged children of displaced families in the North Gondar Zone. A cross-sectional
study design was conducted from January to March 2022 among the under-five-aged children of the displaced family. A total of 205 randomly selected under-five-aged children from the displaced families were included in the study. A structured
questionnaire was used to collect data, and the instrument was adopted from a previous study. Anthropometric measurements were carried out to determine the status of stunting and wasting. A bivariable and multivariable logistic regression
analysis was used to find the factors associated with stunting and wasting. The prevalence of stunting and wasting among under-five-aged children was 26.2% and 18.7%, respectively. Out of the risk factors considered in the present study, age (AOR
= 3.54; 95% CI: 0.2–3.54), family monthly income (AOR = 3.6; 95% CI: 1.3–7.5), eating only two meals per day (AOR = 2.8;
95% CI: 1.0–6.2), and not eating farm animal products (AOR = 2.2; 95% CI: 0.5–1.61) were important risk factors associated
with stunting. In the other way, age, family monthly income, and eating only two meals per day were significant predictors
of wasting. The result showed that the prevalence is severe in the study area. Therefore, the government should work on children under two years of age, take action to solve the nutritional issues, and encourage families with low monthly incomes to
eat animal products at least once a week and nutritious food at least three times a day
Ecological Risk Assessment of Desalination Plants Discharges on the Marine Environment Red Sea, Egypt
Desalination has become one of the main alternatives to compensate for water shortages. Although seawater desalination is
expensive and has many environmental risks, it is still an important option to compensate for water shortages in Egypt.
The discharge of liquid waste (especially heavy metals) from the station into the sea has a negative impact on the water, so
the spatial distribution of heavy metals (lead, cadmium, and copper) shows high concentrations near the outlets of both AlQusayr and the port of Al-Qusayr. Hamata desalination plants in the southern Red Sea. As for higher quantities of heavy metals - higher than the standard values - such as (Cu, Pb, Cd), they are classified as seawater pollutants, whether they show evidence of toxicity or not. The study demonstrated that seaweed has bio-absorption properties and can effectively absorb
heavy metals from the surrounding water, and thus it can serve as a bio-indicator in tools for monitoring the degree of pollution, as well as evaluating water desalination activities
Comprehensive Study of Various Chemical Samples in Forensic Toxicology: Focus on Urine Sample
Toxicology deals with the measurement and analysis of toxins. It is itself a vast branch of science, though it has several
branches and one of these is forensic toxicology. Forensic toxicology is a branch of toxicology that lines up with other disciplines, namely clinical chemistry, postmortem forensic toxicology, human performance toxicology and forensic drug testing,
providing medical jurisprudence of adverse effects such as drug abuse, poisoning and death. The key role of forensic toxicology is to identify and analyse the toxin compounds found during adverse events. This review paper aims to draw an idea
about the toxin, in the collected biological chemical samples such as urine samples and their effects on their day-to-day life
Sigmoid Vaginoplasty in Patient with Complete Androgen Insensitivity: Technique and Outcomes
Androgen Insensitivity Syndrome (AIS), also known as testicular feminization, is a rare medical condition that has garnered increased attention in recent years due to evolving research and therapeutic approaches [1,2], as well as the psychological repercussions it has on patients and the risk of being associated not only with sex cord–stromal tumors but also with rare mesenchymal tumors [3]. AIS results from anomalies in the X chromosome and leads individuals with an XY genotype to exhibit various degrees
of female physical traits or complete feminine characteristics
On the Self-Organization of Dielectric Barrier Discharges
The present paper contains experimental analysis of the spatiotemporal structure of atmospheric pressure dielectric barrier
discharge (DBD) in a packet-pulse excitation mode widely used as an effective tool for plasma modification of various media. The motivation is the need to optimize the conditions for DBD plasma obtaining with a homogeneous diffuse structure.
It is shown that for a discharge gap of the millimeter range (1–3 mm) in atmospheric air, under certain conditions, a number of new plasma phenomena are possible - the effects of an increase in the density (total number) of filamentary
discharges over time, both unchanged and with a decrease in the area of the filaments, as well as the formation of complex
space-time structures. An interpretation of this phenomenon is proposed. Homogeneous diffuse discharges are obtained in
a standard electrode configuration with a single dielectric
Haosmc Growth on Various Sustainable Nano/Micropatterned Surface Topographies Utilising Reusable Surface Templatin
The aim of controlling/regulating cellular processes by surface patterning of biomaterials is a crucial concept in emerging research fields, where the precise fabrication of micro-nano surface topographies is required at manufacturing scales to meet
consumer demand. Photolithography is typically employed for surface patterning; however, the high cost, process complexity, and lack of environmentally friendly and sustainable methodologies represent steep barriers for many researchers. Soft
lithographic methods have been utilised extensively as a potential alternative for traditional photolithography, yet a photolithographic step is still required for initial template fabrication. Here, we demonstrate the use of repurposed optical consumer items such as DVDs, diffraction glasses, and gratings that would otherwise be thrown away after their useful lives, being used here as a sustainable approach as templates for the formation of complex nano-patterns. By replicating these templates in polydimethylsiloxane (PDMS) and polylactic acid (PLA), we show the varied interactions of human aortic smooth
muscle cells (HAoSMC) to these surfaces. Notably, it was demonstrated that, in comparison to nonpatterned substrates,
HAoSMC interaction (adhesion, spreading, and viability) was higher on DVD patterned surfaces compared to diffraction
glass and grating patterned surfaces according to the results from cell metabolic activity (MTT and Alamar Blue), and proliferation (total DNA) assays. We demonstrate that a simple, reusable, inexpensive, yet robust technology could be a powerful
tool in improving our understanding of cell-surface interactions and for the potential development of medical devices with
micro- and nanoscale low or high adhesion features
The Sensory Attributes Potentiating Effect of Mid-Infrared Rays on Moringa Leaf
Moringa leaf (Moringa oleifera) is referred to as the “natural nutrition of the tropics”, and in the Philippines, as “mothers’
best friend”. It possesses many health benefits and is also used in disease prevention and therapy. The enhancement of
moringa’s natural potency is a scientific challenge that has yet to be thought of. We found enhanced inherent characteristics
in the moringa leaf by irradiating using our recently invented 2-6µm mid-infrared ray generating atomizer (MIRGA). The
achieved benefits were a more desirable taste and aroma, and an enhanced shelf life, thus increasing the potential transportation distance, quality, and palatability. This scientific achievement was supported by suitable instrumentations and sensory
evaluation
The Development of a Classification System for the Treatment of Scoliosis by the Side Shift Approach
The Side Shift approach to correction of scoliosis curves has been used by therapist at the Royal National Orthopaedic Hospital (RNOHT) for over 30 years. The Side Shift approach was developed by Mrs Min Mehta, and has been
Modified using consensus based evidence of SOSORT. Clinical observations had indicated that not all patients could actively (Auto) correct to beyond the trunk midline, a key principle of Side Shift. At the RNOHT a classification system based upon the ability of an individual to auto-correct the spine during a Side Shift movement has been developed to aid the appropriate application of the shift exercises and allow future comparative analysi
Value of Sugarcane Stalks in the Diet of Small Ruminants: Comparison of Protein Enrichment with Saccharomyces cerevisiae Produced By Solid-State Fermentation versus Protein Supplementation with Soybean Mea
A trial was carried out on growing lambs to compare conventional protein supplementation of sugarcane with soybean meal
with Saccharomyces cerevisiae enrichment produced by solid-state fermentation. Yeast enrichment enabled sugarcane stalks
to increase their crude protein content from 4% to 12%. No difference was obtained between these two forms of supplementation on the daily growth of 80.2 and 76.8 g per day for enriched and non-enriched sugarcane respectively.
The Impact of Seasonal Changes on Growth Performance, Rumen Fermentation, and Rumen Microbiota Structure of Yaks: An Analysis Using the Supplemented 2.5kg Concentrate Level as an Example
The study investigated the effects of supplementing the same level of concentrate in different seasons on the growth performance,
rumen fermentation, serum biochemical index, and rumen microflora changes in yaks, to provide guidance on accurate
feeding of yaks in cold and warm seasons. 12 healthy yaks weighing (124.21±15.64) kg were selected for the experiment,
with a warm season group from August to October and a Cold season supplemental feeding group from October to December.
The results showed that the mean daily gain was significantly higher in the warm season grazing group than in the cold
season grazing group (p<0.05). Rumen fermentation, serum biochemical index, and rumen microflora changes also varied
significantly between the two groups (p<0.05).
Case of the Algerian Oasis after its Invasion by Modern Irrigation Techniques; Example of the Oasis of Beni Ounif in Southwest Algeria
The oasis of Beni Ounif depends on water to ensure its sustainability, like all the Algerian oases which suffer from overconsumption
of this precious element in a desert of more than two million kilometers. Because it is the most important factor
in preserving the lives of all who live in this arid environment.
Linear Support Vector Machine Myoelectric Pattern Recognition Control System Architecture for Transtibial Osteomyoplastic Amputees
The use of surface electromyography (sEMG) signals for clinical diagnosis is well appreciated in the medical
field. However, the use of sEMG signals for the control of powered prosthetic limbs is still regarded as a futuristic idea. Past
and present studies have focused more on the upper limb (hand) as compared to the lower limb (leg). The challenges associated with the controlling leg movement include designing for both balance and locomotion. After amputation, the muscle
orientation and alignments on the residual stump changes as some of the anatomical landmarks are changed during surgical
procedure. To achieve locomotion, some amputees, generally from third-world nations, use passive mechanical prosthetic
limbs with a fixed ankle.
Protected Viticulture for Sustainable Grape Production to Cope with the Adverse Effects of Climate Change
Grapes (Vitis vinifera L.) are among the most commonly cultivated horticultural crops on the earth covering an area of 7.5
million hectares with around 70 million tons production. Grapes being highly nutritious are majorly utilized in making beverages or used as fresh and raisin. In today’s world, the most concerned topic in agriculture is continuous change in climatic
conditions leading to several negative social, ecological, economical and biological problems. Grapes are delicate fruits, their
vines are sensitive towards extremes in temperature, water, heat, duration and intensity of light exposure as well as carbon
dioxide and humidity alterations. Hence, one can shift to drought and heat tolerant varieties and certain training and pruning methods suitable to the prevailing environmental conditions. Vineyard management practices, including farm mechanization can be amended for improving the gains, while reducing the input
Ordered Growth of Anodic Aluminum Oxide in Galvanostatic and Galvanostatic-Potentiostatic Modes
The results are presented of obtaining anodic aluminum oxide with an ordered pore arrangement by employing two anodizing modes - galvanostatic mode and combined (galvanostatic + potentiostatic) mode, at high values of the current density and voltage. Use has been made of an oxalate electrolyte and a complex electrolyte comprising oxalic acid and phosphoric acid. Scanning electron microscopy has been used to investigate the surface morphology of the barrier and porous layers and to determine pore sizes and inter-pore distance.
Anodic Porous Alumina Array for Cyanine Fluorophore Cy3 Confinement
Self-organized anodic porous alumina films with hexagonal pore lattice have attracted a considerable attention for biological arrays and confinement of various organic probes dyes in solutions. A molecular structure with axial symmetry in bis-heterocyclic indole chains and conjugate system, such as cyanine fluorophore Cy3 dye, was investigated here with respect to its fluorescence when loaded in the anodic alumina pores.
Anodizing for Design and Function
Two basic reactions occur during the anodizing of aluminum: 1) the aluminum is consumed and 2) an oxide grows. By accepting this statement as true, the anodizing process can be viewed as a corrosion process, and anodizing can be modeled using the Tafel Equation. Anodizing process parameters of electrolyte chemistry and concentration, temperature, aluminum substrate resistance and current density are presented as they relate to the Tafel Equation and how they impact the anodic aluminum oxide structure and properties. Understanding this relationship is consequent in making anodizing an engineering process, one that enables tuning the structure such that it yields distinct characteristics to fulfill design and application requirements.
Recent Developments in Human Odor Detection Technologies
Human odor detection technologies have drawn attention due to the wide possibility of potential applications they open up in areas such as biometrics, criminal investigation and forensics, search for survivors under rubble, and security checkpoint screening. Gas chromatography/mass spectrometry (GC/MS) has been the most successful and powerful analytical approach developed to date for human odor analysis, and hundreds of human odorants have been identified using this tool.
Analysis of Sweat Simulant Mixtures using Multiplexed Arrays of DNA-Carbon Nanotube Vapor Sensors
Carbon nanotube (NT) based electronic vapor sensors were tested against synthetic sweat solutions, consisting of 13 volatile organic
compounds (VOCs) in saline, in order to probe the device ability to analyze and differentiate vapors derived from complex biological
samples.
Characteristic Human Scent Compounds Trapped on Natural and Synthetic Fabrics as analyzed by SPME-GC/MS
The collection of human odor volatiles is of interest to forensic applications as a path to investigate canine scent discriminations in
legal investigations. A study using a selected array of previously identified human odor compounds has been conducted to determine
the retention and release capabilities of five (5) natural and synthetic fabric types, cotton (mercerized fabric and gauze matrix),
polyester, rayon and wool.
The Effects of the Film Thickness and Roughness in the Anodization Process of Very Thin Aluminum Films
The anodization of aluminum foils having micrometer thickness is a common process and results in hexagonally self-ordered alumina membranes. However, anodic aluminum oxide (AAO) membranes fabricated from nanometer-thin films present new challenges to the anodization process, since aluminum films adheres poorly on supporting substrates and the smoothness of the film is highly related to the kind of substrate.
Anodic Oxidation of Titanium in Sulphuric Acid and Phosphoric Acid Electrolytes
Anodisation of pure titanium has been carried out in sulphuric and in phosphoric acid solutions at potentials ranging from 50 to 150V. The SEM and AFM morphological analysis indicates that, within this potential range, oxidation in sulphuric acid solution produces better developed mesoporous oxide layers.
Fabrication of Ordered Arrays of Anodic Aluminum Oxide Pores with Interpore Distance Smaller than the Pitch of Nano-pits formed by Ion Beam Etching
We investigated a method for preparation of ordered nanopore arrays with the interpore distance of 60 nm by guided self-organization of anodic aluminum oxide with a prepatterned array of pits in the starting Al film.
Preparation of Large Area Anodic Alumina Membranes and their Application to Thin Film Fuel Cell
The design of an electrochemical reactor for the preparation of self-supported comparatively thin (up to 10 μm) and large area (up to 50 cm2) anodic alumina membranes is described allowing growth of porous alumina at high applied potential (up to 150 V) without burning.
Fabrication of Vertical Cu2ZnSnS4 Nanowire Arrays by Two-Step Electroplating Method into Anodic Aluminum Oxide Template
Vertical Cu2ZnSnS4 (CZTS) nanowire arrays have been synthesized via two-step electroplating method into anodized aluminum oxide template. For deposition of CZTS nanowires, anodized aluminum oxide (AAO) was used as the growth mask for the growth of the nanowires. AAO templates with hole sizes of 70 nm in diameter were used in the experiments.
Fabrication and Luminescence of Anodic Alumina with Incorporated Vanadyl Citrate Chelate Anions
Anodic aluminum oxide doped with vanadyl citrate chelate complex anions was formed by a two-step self-organized anodization in 2 wt. % sulfuric acid containing 0.04 M V2O5 and 0.08 M citric acid at voltage range 13-23 V, and at 0 and 15 oC. The combination of two temperatures and at least four voltages (depending on the applied temperature) was applied as the operating conditions of anodization.
Synthesis of BaTiO3 Nanowires via Anodic Aluminum Oxide Template Method Assisted by Vacuum-and-Drop Loading
In this paper, we report on the synthesis of BaTiO3 nanowires via the anodic aluminum oxide template method. To fill in the precursors of BaTiO3 into anodic aluminum oxide templates, the vacuum and drop loading method developed in our previous study was used. Ba(CH3COO)2 (barium acetate) and C12H28O4Ti (tetraisopropyl orthotitanate) were used as Ba and Ti sources, respectively. Anodic aluminum oxide membranes with the through-hole diameter of ~200 nm were used as the template for BaTiO3 nanowires.
Editorial Board Members Related to CH
Robert Luk
Associate Professor
Department of Computing
Hong Kong Polytechnic University
Hong Kong
Department of Computing
Hong Kong Polytechnic University
Hong Kong
Ahmed Ragab Gaber Ahmed
Faculty of Science
Beni-Suef University
Egypt
Beni-Suef University
Egypt
Rafik Ragheb
Program Chair and Faculty for Medical Laboratory
Anderson College
Canada
Anderson College
Canada
Rashmi Bansal
Professor
Department of Neuroscience
University of Connecticut Health Center
United States
Department of Neuroscience
University of Connecticut Health Center
United States
Sandeep Kumar Kar
Assistant Professor
Department of Cardiac Anaesthesiology
Institute of Postgraduate Medical Education & Research
India
Department of Cardiac Anaesthesiology
Institute of Postgraduate Medical Education & Research
India
CARLOS ALBERTO NOGUEIRA DE ALMEIDA
Professor
Department of Paediatric Nutrition
Brazilian Association of Nutrology
University of Ribeirao Preto
Brazil
Department of Paediatric Nutrition
Brazilian Association of Nutrology
University of Ribeirao Preto
Brazil
Yasemin Bakircioglu Kurtulus
Professor
Chemistry Department
Faculty of Science
Trakya University
Turkey
Chemistry Department
Faculty of Science
Trakya University
Turkey
Hisao Kurazono
Professor
Department of Animal and Food Hygiene
Obihiro University of Agriculture and Veterinary Medicine
Japan
Department of Animal and Food Hygiene
Obihiro University of Agriculture and Veterinary Medicine
Japan
Hassen Chaabani
Professor
Department of Human Genetics & Biological Anthropology
University of Monastir
Tunisia
Department of Human Genetics & Biological Anthropology
University of Monastir
Tunisia