XML
-
-
List of Articles
-
Open Access Article
1 - Kinetic and Equilibrium Studies for Dye Adsorption onto Sugarcane Bagasse and Rice Husks
Noorul Hudai Abdullah Nur Atikah Abdul Salim Baizura Binti Hamid Muhammad Azri Nizamdin Muhammad Fauzul Mubarak Ahmad Fadhil Nurhana Syahira Azman Nur Farhan Zon Masiri Kaamin Amir Khan Suwandi Noraziah Ahmad Zainab Mat Lazim Maria Nuid Nur Azmira ZainuddinThe textile industry discharges large quantities of highly colored wastewater from industrial processes using chemical components. Many dyes are designed to be chemically stable so that they are difficult to decolorize due to their complex structure and synthetic origin MoreThe textile industry discharges large quantities of highly colored wastewater from industrial processes using chemical components. Many dyes are designed to be chemically stable so that they are difficult to decolorize due to their complex structure and synthetic origin. The dye waste is subsequently released directly to water bodies during the textile finishing process. This improper released has adverse effects on the environment and may reduce photosynthesis in aquatic plants. Even though adsorption techniques have been widely used to remove textile dye from waters, the kinetic models used to describe the adsorption of textile dye onto a porous material is still not yet fully understood. This study investigated different applications of absorbent from sugarcane bagasse (SB) and rice husks (RH) in removing color from aqueous solution and the application of kinetic model for adsorption of color from aqueous solutions onto SB and RH. A batch study was carried out under various mass of adsorptions and contact time with constant with the initial concentration of aqueous solution was 400ADMI. The data obtained from batch experiments showed that the removal of RH (93%) was more efficient than SB (49%). This study also advanced the understanding on the kinetic adsorption study of RH and SB to prove that the adsorbents have potential to reduce dye from synthetic solution. The contribution of this study in the removal of significant dye pollutants from industrial wastewater will require future assessment in a prospective wastewater treatment facility setting. Manuscript profile -
Open Access Article
2 - Modified Titania Impact on Photocatalytic Efficiency of Bmim [Cl]
Aina Farwizah Shahhiran Raihan Mahirah Ramli Hayyiratul Fatimah Mohd ZaidABSTRACT: Titania has been one of the promising alternatives in treating environmental pollution issues and was considered in various applications due to its flexible behaviour. Many studies have been conducted to test its phase-changing properties and adaptive ability MoreABSTRACT: Titania has been one of the promising alternatives in treating environmental pollution issues and was considered in various applications due to its flexible behaviour. Many studies have been conducted to test its phase-changing properties and adaptive ability such as calcination process, and metal and nonmetal modification using mono-doped or co-doped elements. In the present study, the photocatalyst was developed from embedment with activated carbon (AC) followed by co-doping of Cu2+ and Fe3+ metal ions. The photocatalyst was characterized by XRD, BET and FESEM. The synthesized photocatalyst was tested in the photocatalytic degradation system for ionic liquid (IL) at the optimized parameters which includes solution pH = 6, [photocatalyst] = 1 g/L and [H2O2] = 0.75 ml/L. The co-doped product exhibited a smaller crystalline sizes as compared to bare TiO2. In addition, copper and iron dopants are well dispersed into the TiO2 lattice as no additional phases were detected. Maximum degradation of 77% of 0.11mM IL was recorded in the Cu:Fe-TiO2/AC system after 240 min of visible light irradiation. The system’s efficiency in terms of tested photocatalysts is in the order of P25 < TiO2 < TiO2/AC < Cu:Fe-TiO2/AC, respectively. Manuscript profile -
Open Access Article
3 - In-vivo and In-vitro Evaluation for Memory Enhancing Activity of Some Isoflavonoids by Suitable Animal Models
Qutaiba A. Qasim Ahmed A. A. Alsaad H.N.K. AL-SalmanIn-vivo and In-vitro evaluation of isoflavonoids for improving memory activity in animal models were completed using this AIM. The materials and methods are interchangeable." As recommended by the OECD, revised draught tenet 423, the acute oral toxicity study has been u MoreIn-vivo and In-vitro evaluation of isoflavonoids for improving memory activity in animal models were completed using this AIM. The materials and methods are interchangeable." As recommended by the OECD, revised draught tenet 423, the acute oral toxicity study has been undertaken. During the earlier stage of experimentation, it was observed that trying out knowledge of and reminiscence of mice happened using the Morris water maze. Two reverse open fingers are joined with two similarly sized closed fingers with a 30 cm wide excess wall to create the extended plus-maze tools. In other words, the fingers are connected to Central Square. Just after the fifteenth day, the Morris water maze was utilised, followed by the sacrifice of the animals after the sixteenth day by performing cervical dislocation. During previous iterations of Acetyl Cholinesterase Activity estimation, absolute genius was employed cautiously. Results reveal that breakthrough latency and time is taken in the goal quadrant are linked to learning and reminiscence. The EL declination and the TSTQ increase are demonstrated in the Morris water maze, which revealed an improvement in memory and recall and reminiscence. There was a broad (at the 99.9% confidence level) increase in the share of open palms and the time spent in open arms (associated with administering a 1 mg kg-1 dosage of diazepam, p. o.) Besides, a large (at the 99.9% confidence level) reduces the number of time animals spends in restricted arms and the quantity of entry to restricted areas. These characteristics will also be used to understand better diseases with a higher level of cellular and molecular complexity. Manuscript profile -
Open Access Article
4 - Risk Assessment for AL-Nahrawn Site that Contaminated with Depleted Uranium in Baghdad
Murtdha Adhab Siyah Asia H. Al-Mashhadani Basim H. EssaActivity concentrations of (238U series), (226Ra), (232Th) and (40K) in some soil samples in AL-Nahrawan site 52 soil samples were determined and evaluated. The measurements were carried out using high purity germanium (HPGe) detector. The mean activity concentrations i MoreActivity concentrations of (238U series), (226Ra), (232Th) and (40K) in some soil samples in AL-Nahrawan site 52 soil samples were determined and evaluated. The measurements were carried out using high purity germanium (HPGe) detector. The mean activity concentrations in soil samples were (76019.61, 16.634, 11.693 and 147.55) Bq Kg-1 for 238U ,226Ra, 232Th and 40K, respectively. The concentration of 238U more than of accepted limited of clearance level according to IAEA and that mean AL-Nahrawan site is radioactive contaminated site. The risk assessment that calculated for AL-Nahrawan site appear the most of dose that calculated from different pathways such as ingestion ,inhalation ,drinking water and meat is coming from external dose and most of it from 238U than another radio nuclides such as (226R, 232Thand 40K). The total dose for the contaminated area that calculated by RESRAD code (7.2) dose from all nuclides all pathways summed in AL-Nahrawan is (1.46 mSv / year) and that more the accepted limit for dose limit exposure to public (1 mSv/A) according the IAEA and that mean the public have limit use and action for this site. The high purity germanium analysis appears AL-Nahrawan site contaminated with Du depended on the ratio between 235U and 238U radio nuclides. The cancer risk from all nuclides calculated by RESRD code for AL-Nahrawan site is (2.2) ×10-3This value is above the global average of 0.29×10 −3 and 1.16×10 −3 reported by UNSCEAR. Manuscript profile -
Open Access Article
5 - Synthesis of New Glycine Cephalexin Condensed Polymer as Peptide Biopolymer for Controlled Release of Cephalexin
Aseel K.Al-Saffar Ahamed M. Abbas Dawood SalmanA new peptide-based polymer was synthesized via polymerization of cephalexin acid chloride with glycine acid chloride with molar ratio 1:1 in condensed polymer solution. This Glycine Cephalexin peptide biopolymer was characterized by different analyses of UV, FT-IR and MoreA new peptide-based polymer was synthesized via polymerization of cephalexin acid chloride with glycine acid chloride with molar ratio 1:1 in condensed polymer solution. This Glycine Cephalexin peptide biopolymer was characterized by different analyses of UV, FT-IR and 1H NMR spectroscopy. Also, physical properties of new synthesized Glycine Cephalexin peptide biopolymer were studied with measurement of its intrinsic viscosity at 30°C, swelling percentage in water and studying drug release in pH 4-10 at 37°C. Manuscript profile -
Open Access Article
6 - Estimation of Daily Intake and Mineral Content of Ice Cream in Bangladesh
Palash Kumar Dhar Muhammad Sarwar Hossain Md. Nazim UddinMilk and dairy productsare avowed as rich source of dietary minerals. Globally, the popularity of ice cream is increasing due to its nutritional benefits and appealing tastes. Therefore, the main objectives of this study were: (a) to determine the concentration of macro MoreMilk and dairy productsare avowed as rich source of dietary minerals. Globally, the popularity of ice cream is increasing due to its nutritional benefits and appealing tastes. Therefore, the main objectives of this study were: (a) to determine the concentration of macro-elements (K, Na, Mg, Ca, and P) in commercially available ice cream in Bangladesh; (b) to point out their contribution to our daily diet formulation. Based on the popularity, and availability, seven leading brands were selected and five samples from each brand were randomly purchased irrespective of their types, flavour, taste, and price. The concentration of macro-minerals were quantified using Inductively Coupled Optical Emission Spectrophotometer (ICP-OES) and UV-Vis Spectrophotometer. The average concentration (fresh weight) of studied elements had shown a descending order of Ca (1529.41±278.88) > K (1363.69±198.68) > P (1187.76±231.23) > Na (569.79±141.14) > Mg (194.90±68.59) mg.kg-1. Pearson’s correlation matrix among the different metals revealed a significant correlation between K-Na (r = 0.418) and K-Mg (r = 0.408) at p < 0.05 levels. The average estimated daily intake (EDI) of K, Na, Mg, Ca, and P were found 40.97, 17.12, 5.85, 45.94, and 35.68 mg.day-1, respectively, which indicated none of the studied samples exceeded the recommended daily allowance (RDA). The consumption of ice cream (30.04 g.day-1) showed 0.87-7.34% contributions of macro-elements to our daily diet. The present study concludes that ice cream could be considered as a possible source of essential minerals (especially Ca, and P). However, to assure the food quality and to create a balanced diet, regular monitoring of milk and dairy products is strongly recommended. Manuscript profile -
Open Access Article
7 - Iodized Salt: Assessment of Nutritional Status, Iodine Intake and Iodine Exposure
Atefeh Ashabi Seyed Ahmad Heydarieh Leila Monjazeb Marvdashti Zeinab Kaviani Anna AbdolshahiFood grade salt is the main carrier for iodine fortification to prevent iodine-deficiency disorders in iodine-deficient regions. Excessive and also too low iodine content in salt could cause diseases and human health risks. This study is aimed to investigate the iodine MoreFood grade salt is the main carrier for iodine fortification to prevent iodine-deficiency disorders in iodine-deficient regions. Excessive and also too low iodine content in salt could cause diseases and human health risks. This study is aimed to investigate the iodine content of edible salts produced in Semnan province (Iran) and also the iodine intake and exposure were estimated in population. Iodine content of 75 salt samples from 25 different brands produced in Semnan province were measured using titration method. Urinary iodine was determined in 240 children (8-12 years old). Iodine intake and exposure was determined based on the defined variables. The results indicated that the mean iodine concentration of 32% iodized salt samples were not according to acceptable range (30-50 mg.kg-1(set by Iranian National Standard Institute. The urinary iodine median was 161 µg.L-1 and in 7.5% of studied population was more than 300 µg.L-1. The mean of daily iodine intake in all samples was 298.4 ± 79.6 µg per day. Obtained iodine exposure values demonstrated that the status of iodine intake in Semnan province was at optimal nutrition and no risk of iodine deficiency treat the population. Manuscript profile -
Open Access Article
8 - Heavy Metals in Commercial Food for Infants and Small Children Origin from the Sarajevo Market
Elma Omeragic Amir Causevic Aleksandra Marjanovic Miroslav SoberThe objective of this study was to determine total mercury, lead and cadmium contents in commercial food for infants and small children marketed on the Sarajevo area of Bosnia and Herzegovina (BiH) and to estimate the toxicological risk associated with the consumption o MoreThe objective of this study was to determine total mercury, lead and cadmium contents in commercial food for infants and small children marketed on the Sarajevo area of Bosnia and Herzegovina (BiH) and to estimate the toxicological risk associated with the consumption of food for infants and small children regarding mercury, lead and cadmium. A total of 30 samples were analysed. The content of lead and cadmium was analysed by graphite furnace atomic absorption spectrometry. Total mercury content was measured with a direct mercury analyser. The limits of cadmium, lead and inorganic mercury for infants and small children was calculated according to the dietary intake limits established by European Food Safety Authority (EFSA) and recommended body weights for European toddlers and infants. Overall, the contents of lead, mercury and cadmium in analyzed commercial food for infants and small children samples were considered quite low. Depending on the frequencies of daily usage the ready for use products for infants and small children there is the some circumstances in which exposure to lead and cadmium appeared to be of health concern. Manuscript profile -
Open Access Article
9 - Toxoplasmosis among Patients with Cancers and Blood Disorders in Iran: Serological Evaluation, Risk Factors and Comparison with Healthy Individuals
Muhammad I Getso Vahid Raissi Maryam Fasihi Karami Gita Alizadeh Mohammad Zareie Zahra Babaei Samani Fatemeh bayat Omid Raiesi Soodabeh EtemadiToxoplasma gondii is an obligate intracellular parasite that causes toxoplasmosis in humans and warm-blooded animals. In this study, we explored the risk factors and seroprevalence of Toxoplasma infection among cancer patients and patients with blood cell disorders in I MoreToxoplasma gondii is an obligate intracellular parasite that causes toxoplasmosis in humans and warm-blooded animals. In this study, we explored the risk factors and seroprevalence of Toxoplasma infection among cancer patients and patients with blood cell disorders in Iran. We collected serum samples from each participant include 600 clinically healthy individuals, 127 patients with different types of cancer, 294 patients with red blood cell disorders, and 101 patients with white blood cell disorders and tested for anti-Toxoplasma antibodies (IgG and IgM) using an Enzyme-Linked Immunosorbent Assay kits and analyzed the results statistically.Out of the 1122 participants ,seroprevalence of Toxoplasmosis among all patients with different disorders , patients with white blood cell disorders, patients with red blood cell disorders and patients with different types of cancer 9.97% , 17.82%, 11.57% and 7.09% were reported respectiveiy.Awareness campaign to educate blood cell disorders patients regarding contact with pets is salient to the reduction of the Toxoplasma burden. In addition, it is pertinent to screen patients with cancers to rule out Toxoplasma infections. Manuscript profile -
Open Access Article
10 - An Approximate Solution for Glucose Model via Parameterization Method in Optimal Control Problems
Mohammad Gholami baladezaei Morteza Gachpazan Saedeh Foadian Hosein Mohammad-Pour KargarGlucose tolerance test is advised to detection of pre-diabetics and mild diabetics in the medical practice. Several mathematical models such as glucose model, were proposed for mimicking the blood glucose-insulin interaction. To predict accurate insulin requirement for MoreGlucose tolerance test is advised to detection of pre-diabetics and mild diabetics in the medical practice. Several mathematical models such as glucose model, were proposed for mimicking the blood glucose-insulin interaction. To predict accurate insulin requirement for each glucose concentration, we need to solve optimal control problems. In this model, constraints are linear and nonlinear forms of cost function. Although ordinary methods can be used in glucose model, but non-negative natures of medical variables made them difficult to use. To finding a new approximate solution of glucose model, parameterization method with non-negative coefficients in polynomial was used. In this state parameterization method, we use polynomials that ensure that the control variable is non-negative in this model. And increases the time for the model solution to be non-negative compared to conventional methods. The simplicity, lower requirement for mathematical calculations and more compatibility with variables are positive aspects of our parameterization method. Manuscript profile -
Open Access Article
11 - Stress-metabolite Stilbenoids in Vine Trunk of Ojaleshi Grape Variety (Vitis vinifera L.) under Crown Gall Infection
Marine Bezhuashvili Luigi Bavaresco Shorena Kharadze Magda Surguladze Giorgi Shoshiashvili Levan Gagunashvili Lali Elanidze Paata VashakidzeThe trunk stilbenoids of healthy and crown gall infected vines of Ojaleshi variety have been studied and identified as stress-metabolite compounds .Vine samples were taken from a 12-year-old vineyard cultivated on yellow soils type in Martvili region (Western Georgia). MoreThe trunk stilbenoids of healthy and crown gall infected vines of Ojaleshi variety have been studied and identified as stress-metabolite compounds .Vine samples were taken from a 12-year-old vineyard cultivated on yellow soils type in Martvili region (Western Georgia). The stilbenoids were extracted by ethyl acetate and then separated in a chromatographic column and analyzed by the HPLC/MS method. The following stilbenoids have been detected: cis-piceid, trans-resveratrol, trans-ε-viniferin, cis-miyabenol C, cis-miyabenol. The concentrations were higher in infected vines as compared to the healthy ones. This is the first time that stilbenoids have been investigated in Ojaleshi grape variety. Manuscript profile -
Open Access Article
12 - Investigating Nitrate and Nitrite Concentrations in Drinking Water of Five Districts in Tehran and Assessing the Presence of Nitrate Reducing Bacteria
Reza Haji Seyed Mohammad Shirazi Maryam Tala Seyed Amir Ali Anvar Bahareh Nowruzi Zohreh Saeidi Masomeh NegahbanHigh levels of nitrate and nitrite in groundwater lead into environmental issues and nitrate poisoning causes unpleasant consequences in human bodies. The present study was conducted to evaluate the concentration of nitrate, nitrite, and nitrate-reducing bacteria in tre MoreHigh levels of nitrate and nitrite in groundwater lead into environmental issues and nitrate poisoning causes unpleasant consequences in human bodies. The present study was conducted to evaluate the concentration of nitrate, nitrite, and nitrate-reducing bacteria in treated drinking water in five areas in Tehran using optical spectroscopy. The results of one-way ANOVA showed that the average concentrations of nitrate in summer and autumn are significantly higher than those of nitrite. Moreover, the highest mean of concentration of nitrate and nitrate was observed in the west of Tehran in autumn 2016 (1.2±0.01 and 4.6±0.02 mg. L-1). On the other hand, the lowest mean was found in the south of Tehran (0.06±0.02 and 0.001±0.01 mg. L-1). However, only in the southern region of Tehran, signs of Pasteurella sp. and Acinetobacter sp. were observed. Additionally, the results of the Duncan test indicated no significant differences concerning nitrate concentration in the morning, noon, and at night in the southern, eastern, and central regions in autumn and summer. The samples of the north, east, and center had the lowest risk and, in the west, and south of Tehran, the highest risk and adverse effects of nitrite and nitrate were observed. Although the average concentration of nitrate and nitrite in all these areas, except for the west of Tehran, was less than the standard of the WHO and the latest national standard, protection of groundwater resources against the entry of pollutants treatment networks to prevent the increase of these ions in water seems to be necessary. Manuscript profile
-
The rights to this website are owned by the Raimag Press Management System.
Copyright © 2021-2024