Journal of International Environmental Application and Science, 2014
Received March 16, 2013; Accepted May 10, 2014 Abstract: In this study biota samples and particle... more Received March 16, 2013; Accepted May 10, 2014 Abstract: In this study biota samples and particle samples were analyzed for the determination of some volatile organic compounds (VOC) concentrations. The analyses of volatile organic pollutants in air samples are limited for some laboratories because of the lack of materials for the sampling of air samples. Other limitations of air sample data are the influence of vertical and horizontal air current, temperature, humidity, etc. Mosses, tree leaves, and lichens are probably the most widely used plant group in relation to the assessment of airborne organic compounds. Benzene, toluene, ethyl benzene and xylenes (known together as BTEX), some halogenated alkanes and chlorobenzenes were the analyzed VOC. The samples were collected, in December 2013 in nine stations in Tirana, Albania. The quantitative analysis of BTEX was performed by the gas chromatography method by using a flame ionization detector (FID). The column used was a VF-1ms cap...
ABSTRACT Bitumens are usually characterised by using time-consuming empirical or functional physi... more ABSTRACT Bitumens are usually characterised by using time-consuming empirical or functional physico-chemical tests. This paper reports a method for the determination of various physico-chemical properties (viz. viscosity at 60 and 135°C, density at 15°C, softening point and Fraass breaking point) and the chemical composition (viz. n-heptane-insoluble asphaltenes, asphaltenes+insoluble polar resins (IPR), saturated hydrocarbons, aromatic hydrocarbons and resins) of bitumens using near infrared (NIR) spectroscopy in conjunction with partial least-squares regression (PLSR). The proposed method surpasses existing alternatives in expeditiousness; also, it allows the simultaneous determination of several parameters from a single spectrum and is amenable to implementation in the continuous mode. Its accuracy and precision are essentially identical with those of reference methods; the relative standard deviation ranges from 0.2% for density to 14% for the Fraass breaking point.
Some industrial wastes such as blast furnace slag, fly ash, silica fume, by-product gypsum and no... more Some industrial wastes such as blast furnace slag, fly ash, silica fume, by-product gypsum and nonferrous metal slag can be used as raw material and blending components in the cement industry. The amount of any waste used in this way depends on many factors such as the chemical and mineralogical composition of the waste itself and of the Portland cement, the size and shape of their particles, the amount of glassy phase in them, etc. Commonly, the proportions of Portland cement and its partial substitutes are developed by trial and error. Based on theoretical considerations proposed by the field researchers, this study deals with the determination of the proportions of copper slag and Portland cement in the blended cement, having the objective of adding just enough of copper slag to consume all the excess calcium hydroxide produced during the hydration of the Portland cement. In terms of the cement chemistry ternary phase diagram, this means finding the intersection between the line ...
Virgin olive oil is an important product produced in some regional areas in Albania. In this stud... more Virgin olive oil is an important product produced in some regional areas in Albania. In this study are analyzed 8 olive oil samples collected from the market and three samples of Kalinjot, Frantoio and Mixan olive cultivars to assess the fatty acid composition and to determine the importance of the fatty acid variables on health. A gas chromatograph as analytical instrument was used to compare the fatty acid composition of different samples of olive oil. According to the fatty acid composition, samples of Kalinjot, Frantoio and Mixan olive cultivars showed closed similarity based on their fatty acid profiles. The intervals of main fatty acids of samples were: (palmitic (C16:0) (9-25%), oleic (C18:1) (30-73%) and linoleic acid (C18:2) (1-7%).
Because zinc is so important across numerous functions, a deficiency of it can cause a host of pr... more Because zinc is so important across numerous functions, a deficiency of it can cause a host of problems. Zinc deficiency during pregnancy can negatively affect both the mother and fetus. A healthy, balanced diet can help provide necessary minerals and vitamins. Zinc deficiency is caused by inadequate levels of zinc in the diet. It also plays a role in carbohydrate breakdown (which supplies energy), as well as in cell growth, division and reproduction. Medical tests can determine whether our body fluids contain high levels of zinc. Samples of blood or feces can be collected in a doctor's office and sent to a laboratory that can measure zinc levels. 500 samples for this study were taken from May 2011 until December 2012, at the University Hospital of Obstetrics and Gynecology "Queen Geraldine" in Tirana, Albania. These was a random selection of these samples and groups obtained from this study resulted in normal pregnant women (control group) and high risk pregnant women...
In present paper , we report the organic syntheses of three compounds from 4-Amino-7-chloro -2-ox... more In present paper , we report the organic syntheses of three compounds from 4-Amino-7-chloro -2-oxo-2H –chromen -3carbaldehyde and describe the results of antibacterial activity of purified compounds.7-Chloro-4-[(2-hydroxy-benzylidene)amino]-2-oxo-2H-chromen-3-carbaldehyde(1a).4-[(2-Hydroxy-benzylidene)-amino]-7-(4-hydroxy-phenylamino)-2-oxo-2Hchromen-3-carbaldehyde (2a) ,([4-[(2-Hydroxy-benzylidene)-amino]-7-(4-hydroxyl-phenylamino)-2-oxo-chromen-3ylmethylene]-amino)-acetic acid (3a),have been synthesized and characterized using melting points , IR spectra , 1H-NMR and 13C-NMR spectra. The antibacterial activity of synthesized compounds and streptomycin and cefalexine at concentractions of 2mg/ml, 3mg/ml and 5mg/ml , have been evaluated against three strains of bacterial culture; Staphylococcus aureus, E.coli and Bacillus cereus. The compounds show bacteriostatic and bactericidal activity.
Zinc is the most ubiquitous of all trace elements involved in human metabolism. It participates i... more Zinc is the most ubiquitous of all trace elements involved in human metabolism. It participates in all major biochemical pathways and plays multiple roles in the perpetuation of genetic material, including transcription of DNA, translation of RNA, and ultimately cellular division. We analysed 100 cases of pregnant women, from first to third trimester of pregnancy, including high risk pregnant women and normal pregnant women. The latter one served as a control group, so that we could verify the accuracy of the results. Serum blood zinc was measured directly using atomic absorption spectrometry and at the same time using total fluorescence. Patients resulting in zinc values lower than 70 µg/dl were marked as zinc-deficient pregnant women, whereas those resulting in zinc values higher than 70 µg/dl were marked as normal pregnant women. The statistical evaluation showed that there was no significant change between two methods of serum zinc determination. Without an adequate nutritional ...
Journal of International Environmental Application and Science, 2014
Received March 16, 2013; Accepted May 10, 2014 Abstract: In this study biota samples and particle... more Received March 16, 2013; Accepted May 10, 2014 Abstract: In this study biota samples and particle samples were analyzed for the determination of some volatile organic compounds (VOC) concentrations. The analyses of volatile organic pollutants in air samples are limited for some laboratories because of the lack of materials for the sampling of air samples. Other limitations of air sample data are the influence of vertical and horizontal air current, temperature, humidity, etc. Mosses, tree leaves, and lichens are probably the most widely used plant group in relation to the assessment of airborne organic compounds. Benzene, toluene, ethyl benzene and xylenes (known together as BTEX), some halogenated alkanes and chlorobenzenes were the analyzed VOC. The samples were collected, in December 2013 in nine stations in Tirana, Albania. The quantitative analysis of BTEX was performed by the gas chromatography method by using a flame ionization detector (FID). The column used was a VF-1ms cap...
ABSTRACT Bitumens are usually characterised by using time-consuming empirical or functional physi... more ABSTRACT Bitumens are usually characterised by using time-consuming empirical or functional physico-chemical tests. This paper reports a method for the determination of various physico-chemical properties (viz. viscosity at 60 and 135°C, density at 15°C, softening point and Fraass breaking point) and the chemical composition (viz. n-heptane-insoluble asphaltenes, asphaltenes+insoluble polar resins (IPR), saturated hydrocarbons, aromatic hydrocarbons and resins) of bitumens using near infrared (NIR) spectroscopy in conjunction with partial least-squares regression (PLSR). The proposed method surpasses existing alternatives in expeditiousness; also, it allows the simultaneous determination of several parameters from a single spectrum and is amenable to implementation in the continuous mode. Its accuracy and precision are essentially identical with those of reference methods; the relative standard deviation ranges from 0.2% for density to 14% for the Fraass breaking point.
Some industrial wastes such as blast furnace slag, fly ash, silica fume, by-product gypsum and no... more Some industrial wastes such as blast furnace slag, fly ash, silica fume, by-product gypsum and nonferrous metal slag can be used as raw material and blending components in the cement industry. The amount of any waste used in this way depends on many factors such as the chemical and mineralogical composition of the waste itself and of the Portland cement, the size and shape of their particles, the amount of glassy phase in them, etc. Commonly, the proportions of Portland cement and its partial substitutes are developed by trial and error. Based on theoretical considerations proposed by the field researchers, this study deals with the determination of the proportions of copper slag and Portland cement in the blended cement, having the objective of adding just enough of copper slag to consume all the excess calcium hydroxide produced during the hydration of the Portland cement. In terms of the cement chemistry ternary phase diagram, this means finding the intersection between the line ...
Virgin olive oil is an important product produced in some regional areas in Albania. In this stud... more Virgin olive oil is an important product produced in some regional areas in Albania. In this study are analyzed 8 olive oil samples collected from the market and three samples of Kalinjot, Frantoio and Mixan olive cultivars to assess the fatty acid composition and to determine the importance of the fatty acid variables on health. A gas chromatograph as analytical instrument was used to compare the fatty acid composition of different samples of olive oil. According to the fatty acid composition, samples of Kalinjot, Frantoio and Mixan olive cultivars showed closed similarity based on their fatty acid profiles. The intervals of main fatty acids of samples were: (palmitic (C16:0) (9-25%), oleic (C18:1) (30-73%) and linoleic acid (C18:2) (1-7%).
Because zinc is so important across numerous functions, a deficiency of it can cause a host of pr... more Because zinc is so important across numerous functions, a deficiency of it can cause a host of problems. Zinc deficiency during pregnancy can negatively affect both the mother and fetus. A healthy, balanced diet can help provide necessary minerals and vitamins. Zinc deficiency is caused by inadequate levels of zinc in the diet. It also plays a role in carbohydrate breakdown (which supplies energy), as well as in cell growth, division and reproduction. Medical tests can determine whether our body fluids contain high levels of zinc. Samples of blood or feces can be collected in a doctor's office and sent to a laboratory that can measure zinc levels. 500 samples for this study were taken from May 2011 until December 2012, at the University Hospital of Obstetrics and Gynecology "Queen Geraldine" in Tirana, Albania. These was a random selection of these samples and groups obtained from this study resulted in normal pregnant women (control group) and high risk pregnant women...
In present paper , we report the organic syntheses of three compounds from 4-Amino-7-chloro -2-ox... more In present paper , we report the organic syntheses of three compounds from 4-Amino-7-chloro -2-oxo-2H –chromen -3carbaldehyde and describe the results of antibacterial activity of purified compounds.7-Chloro-4-[(2-hydroxy-benzylidene)amino]-2-oxo-2H-chromen-3-carbaldehyde(1a).4-[(2-Hydroxy-benzylidene)-amino]-7-(4-hydroxy-phenylamino)-2-oxo-2Hchromen-3-carbaldehyde (2a) ,([4-[(2-Hydroxy-benzylidene)-amino]-7-(4-hydroxyl-phenylamino)-2-oxo-chromen-3ylmethylene]-amino)-acetic acid (3a),have been synthesized and characterized using melting points , IR spectra , 1H-NMR and 13C-NMR spectra. The antibacterial activity of synthesized compounds and streptomycin and cefalexine at concentractions of 2mg/ml, 3mg/ml and 5mg/ml , have been evaluated against three strains of bacterial culture; Staphylococcus aureus, E.coli and Bacillus cereus. The compounds show bacteriostatic and bactericidal activity.
Zinc is the most ubiquitous of all trace elements involved in human metabolism. It participates i... more Zinc is the most ubiquitous of all trace elements involved in human metabolism. It participates in all major biochemical pathways and plays multiple roles in the perpetuation of genetic material, including transcription of DNA, translation of RNA, and ultimately cellular division. We analysed 100 cases of pregnant women, from first to third trimester of pregnancy, including high risk pregnant women and normal pregnant women. The latter one served as a control group, so that we could verify the accuracy of the results. Serum blood zinc was measured directly using atomic absorption spectrometry and at the same time using total fluorescence. Patients resulting in zinc values lower than 70 µg/dl were marked as zinc-deficient pregnant women, whereas those resulting in zinc values higher than 70 µg/dl were marked as normal pregnant women. The statistical evaluation showed that there was no significant change between two methods of serum zinc determination. Without an adequate nutritional ...
Optimization of copper slag waste content in blended cement production Some industrial wastes suc... more Optimization of copper slag waste content in blended cement production Some industrial wastes such as blast furnace slag, fly ash, silica fume, by-product gypsum and nonferrous metal slag can be used as raw material and blending components in the cement industry. The amount of any waste used in this way depends on many factors such as the chemical and mineralogical composition of the waste itself and of the Portland cement, the size and shape of their particles, the amount of glassy phase in them, etc. Commonly, the proportions of Portland cement and its partial substitutes are developed by trial and error. Based on theoretical considerations proposed by the field researchers, this study deals with the determination of the proportions of copper slag and Portland cement in the blended cement, having the objective of adding just enough of copper slag to consume all the excess calcium hydroxide produced during the hydration of the Portland cement. In terms of the cement chemistry ternary phase diagram, this means finding the intersection between the line connecting the cement composition and the slag composition and the boundary line of calcium hydroxide stability field. A copper slag (waste of Lac, Albania Copper Plant) and Portland cement (produced in Fushe-Kruja,Albania Cement Factory) are used as specific constituents in the binary mixes of blended cement experimented in this work. In addition to the pozzolanic tests of mixes, with various content of copper slag determined according to ternary phase diagram, the mechanical strength tests of mortars produced with these binary mixes are carried out, too.
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