bluuebunny/crossref_metadata_2025 huggingface dataset:
Efeito de Diferentes Potenciais Osmóticos sobre a Germinação e o Desenvolvimento de Plântulas de Feijão Enxofre
Authors: De Araújo Marlon Lima , De Magalhães Ana Caroline Messias , De Abreu Marcos Giovane Pedroza , Maciel James Araújo , Melhorança Filho André Luiz
Published: March 2019

Em vista das variações climáticas ocasionadas pelas mudanças do clima mundial, a agricultura busca novas alternativas de plantas que possam se desenvolver e produzir em condições adversas (seca ou chuvas excessivas). O objetivo do presente trabalho foi avaliar a germinação e o desenvolvimento inicial de sementes do feijão enxofre sob diferentes potenciais osmóticos. As sementes foram postas para germinar em papel germitest embebido em solução de cloreto de sódio nos potenciais osmóticos: 0; -0,1; -0,2; -0,3; -0,4; -0,5; -1; -1,5; -2,0 MPa. Para a análise dos dados foram utilizados os índices de velocidade de germinação (IVG), coeficiente de velocidade de germinação CVG (%), porcentagem de germinação, comprimento da radícula (CRF) e hipocótilo final (CHF), tempo médio de germinação (TMG). Observou-se redução nos índices de IVG, G (%), CVG (%), CRF, CHF e aumento no TMG, nos potenciais de -0,1; -0,2; -0,3; -0,4; MPa. O IVG apresentou redução em todos os potenciais. Conclui-se que a variedade feijão enxofre não reduziu sua germinação em função das condições de potencial hídrico, fato que não foi observado nos demais parâmetros (IVG, TMG e CVG%), que apresentaram interferências negativas significativas, mostrando que apesar de ser exposto a situações de baixa disponibilidade hídrica, o feijão enxofre não reduz seu estande, mostrando potencial de uso em áreas de seca ou solos salinos. Palavras-chave: Feijão Enxofre. Germinação. Potencial Osmótico. AbstractIn view of the climatic variations caused by changes in the global climate, agriculture seeks new alternatives of plants that can develop and produce in adverse conditions (drought or excessive rain). The purpose of this study was to evaluate the germination and early development of sulfur beans seeds under different osmotic potentials. The seeds were put to germinate in germitest paper soaked in sodium chloride solution osmotic potential: 0; -0.1; -0.2; -0.3; -0.4; -0.5; -1; -1.5; -2.0 MPa. For data analysis  the germination speed index (IVG), germination speed CVG coefficient (%), germination percentage, length of the radicle (CRF) and hypocotilum (CHF), average time of germination (TMG) were used. Reduction was observed in the indices of IVG, G (%), CVG (%), CRF, CHF and increase in TMG, the potential of-0.1 0.2 0.3;0.4; MPa.  IVG exhibited reduction in all  the potentials. It is concluded that the sulfur beans variety did not reduce its  germination conditions of water potential, a fact that was not observed in the other parameters (IVG, TMG and CVG%) which ave significant adverse interference, showing that despite being exposed to situations of low water availability the sulfur beans does not reduce its stand, showing potential for use in dry areas or saline soils. Keywords: Sulfur Beans. Germination. Osmotic Potential.
Bibliometric analysis of Cardiovascular Disease Research Activity in the Arab World
Authors: Khachfe Hussein H , Refaat Marwan M
Published: March 2019

Background and Objectives: There is an increased number of non-communicable diseases i.e. chronic disease such as cancer, chronic respiratory diseases, diabetes and cardiovascular diseases in the Arab World. In this article, we will be aiming to measure the activity of cardiovascular disease (CVD) research via publications that have been released in the Arab World over the last 15 years.Methods: Search using Medline (via Ovid and PubMed) and EMBASE was used for this study. Publications related to cardiology/cardiovascular disease according to author origin/affiliation were collected from the 22 Arab countries between 2002 and 2016 (inclusive).Results: The Arab world only produced 1% of the total percentage of CVD publications over the interval of our study. There was however, an increase in the number of publications in recent years. Qatar and Lebanon had the highest ratio for CVD to Non-CVD publications released. Qatar had the highest number of publications per million persons. Tunisia had the highest number of publications per GDP (in US Billion Dollars).Conclusions: Overall, the Arab countries still lag behind other parts of the world in terms of CVD research activity. Five countries are responsible for the majority of publications.
Peak atrial longitudinal strain (PALS): better call it stretch?
Authors: Henein Michael Y , Cameli Matteo , Lindqvist Per , Wiklund Urban , Mandoli Giulia Elena , Mondillo Sergio
Published: March 2019

Left atrial (LA) strain is gaining more and more relevance in medical literature, with many applications in different clinical setting. The term “strain”, meaning deformation, is applied to the contraction phase of the left ventricle (LV), due to its myocardial shortening along the longitudinal axis, to the LA relaxation phase, correlated to its distensibility and elastic compliance in receiving blood from the pulmonary veins, and even to LA contraction consequent to the electric activation of LA myocardium. This manuscript describes main anatomical and physiological characteristic of the left atrium and discusses the use of the term strain from terminological and conceptual points of view.
Evaluación de la calidad de agua de ríos de colombia usando parámetros físicoquímicos y biológicos
Authors: Gualdrón Durán Luis Eduardo
Published: March 2019

Se analizaron las características físicas, químicas y microbiológicas (coliformes totales, coliformes fecales y macroinvertebrados acuáticos) de diversos ríos de Colombia y se determinó el índice de calidad de agua (IQA) de los ríos estudiados. Se encontraron altos niveles de turbiedad y sólidos disueltos totales (SDT) sugiriendo que el agua de los ríos de Colombia no posee condiciones óptimas para el crecimiento y la reproducción de diversos organismos acuáticos. Además, se encontraron altos niveles de coliformes fecales, asociado con la existencia de vertimientos de aguas residuales, indicando que gran parte del agua de los ríos de Colombia, no es apta para consumo humano. Además el índice de BMWP/Col. correspondió a aguas ligeramente contaminadas y el Índice de calidad de agua (IQA) sugirió un recurso hídrico altamente contaminado, existiendo congruencia entre los dos índices anteriormente mencionados y algunas variables fisicoquímicas y biológicas, que presentaron valores superiores a los permisibles establecidos por la normatividad Colombiana
Endemik Alyssum discolor'un (Brassicaceae) Tohum Çimlenmesi ve Kök-Gövde Gelişimi Üzerine Nikel, Bakır ve Demir Etkisi
Authors: ÖZAY Cennet
Published: March 2019

Bu çalışmada, Brassicaceae familyasından endemik Alyssum discolortohumlarınafarklı konsantrasyonlarda (0.2-5.0 mM) klor tuzu şeklinde uygulanan bazı ağır metallerin (Ni, Cu ve Fe) tohum çimlenmesi ve kök-gövde gelişimi üzerindeki etkileri incelendi. Ayrıca A. discolor’un toprak üstü kısmındaki Ni, Cu ve Fe içerikleri, İndüktif Eşleşmiş Plazma-Optik Emisyon Spektrometrisi (ICP-OES) ile belirlendi.Tohumlar, plastik petriler içerisindeki şişme ortamı sıvısıyla ıslatılmış çift katlı kaba filtre kağıtlarının üzerine, her bir petriye 25’er tohum gelecek şekilde ekildi. Ekimden hemen sonra kapağı kapatılan petriler etüve kaldırıldı ve 72 saat süreyle 23-24ºC’de karanlık ortamda çimlenmeye bırakıldı. 72 saat sonunda radikula belirimi esasına göre tohumların çimlenme oranları tespit edildi ve her bir gruptaki çimlenen kök ve gövde uzunlukları ölçüldü. Tohum çimlenmesi, uygulanan ağır metal konsantrasyonlarındaki artışa paralel olarak azalırken,kök ve gövde uzunluklarının ise Fe hariç Ni ve Cu uygulamalarında konsantrasyon artışına bağlı olarak önemli düzeyde (P<0.05) azaldığı belirlendi. Serpantin özellik göstermeyen bir alandan toplanan A. discolor’uniçerdiği Ni konsantrasyonu 13.48 ± 0.44 mg/kg olarak tespit edildi. A. discolor’ungövde kuru ağırlığınınNi konsantrasyonu 1000 mg/kg'dan daha az olduğu için Ni hiperakümülatörü özelliği göstermediği, bu sebepten dolayı da Ni’den etkilendiği ve tolerans gösteremediği sonucuna ulaşılabilir.
Helichrysi Flos Drogu Üzerinde Farmakognozik Araştırmalar
Authors: TAŞTAN Pelin
Published: March 2019

Ölmez
çiçek ismi ile bilinen Helichrysi Flos
drogu üzerinde Avrupa Farmakopesi yöntemleri esas alınarak kalite kontrol
çalışmaları gerçekleştirilmiş ve drogun kurutmada kayıp miktarı ile sülfat külü
miktarı, hidroklorik asitte çözünmeyen kül miktarı ve bütün kül miktarı tayin
edilmiştir. Elde edilen verilerin farmakope doğrultusunda kabul edilebilir
aralıklarda oldukları tespit edilmiştir. Ayrıca bu drogdan infüzyon yoluyla
hazırlanan bitkisel çay preparatları da kullanılarak ağır metal tayini
analizleri gerçekleştirilmiştir. Toz drog ve su ekstrelerinin içerdiği ağır
metaller incelenerek karşılaştırma yapılmıştır. Buna göre bitkisel verimliliği
ve kaliteyi arttıran birçok metalin toz drogtan ekstreye yüksek oranda geçtiği
saptanmıştır. Toksik ağır metallerin drogdaki oranının eser miktarda olması, bu
çayların güvenli bir şekilde tüketilmesi için önemlidir. Bu da, yapmış
olduğumuz çalışma sonucunda elde ettiğimiz anlamlı bir veri olmuştur.
On Telescopic Numerical Semigroup Families With Embedding Dimension 3
Authors: SÜER Meral , İLHAN Sedat
Published: March 2019

In this study, the set of all
telescopic numerical semigroups families with embedding dimension three will be
obtained for some fixed multiplicity by some parameters. Also, some invariants
of these families will be calculated in term of their generators
An experimental study to test the haemostatic effect of Aloe vera
Authors: H. Ramesh , C. H. Jyothi
Published: March 2019

Background: Blood clotting is a process which prevents blood loss during injuries. Blood clots even when it is coming out from the blood vessels. Aloe vera is a perennial plant found all over India. It is commonly used in traditional system of medicine for treatment of wound healing, mouth ulcers, constipation, skin wrinkles and diabetes mellitus It is also used as antioxidant and antimicrobial agent. As it is used in traditional system of medicine for wound healing, this study was under taken to test the possible haemostatic effect of aloe vera.Methods: 12 rats were divided into two groups (control and test) with 6 rats in each group. Determination of Bleeding Time (BT), rat tail was warmed for one minute in water at 40˚C and then dried. A small cut was made in the middle of the tail with a scalpel. In test group, a drop of aloe vera leaf extract was applied on the injured area immediately after making the cut in the middle of the tail, where as in the control group nothing was applied, and BT estimated. Determination of Clotting Time (CT), 12 test tubes were arranged in water bath at 37˚C. Control Group: 0.4 ml of blood was collected from each rat in the control group and added to 6 test tubes kept in the water bath. Test group: For the remaining 6 test tubes 0.1 ml of aloe vera leaf extract was added. 0.4 ml of blood collected from the test group was added to these test tubes. The CT was estimated for both control group and test group.Results: The results were statistically analyzed by using unpaired t-test. The reduction in BT and CT for test group was statistically highly significant (p<0.001) compared to control group.Conclusions: In this study aloe vera leaf extract significantly reduced both BT and CT in the test group.
Diagnostic laparoscopy in acute abdominal pain
Authors: Subramaniam Ravichandran
Published: March 2019

Background: Acute Abdominal pain is an important surgical problem in all age groups. Early diagnosis is needed to rule out life threatening conditions. Diagnostic laparoscopy is a modern useful tool in giving proper treatment for all needed individuals. The aim of the present endeavor is to study the use of laparoscope in patients with acute pain over the abdomen, to diagnose and confirm conditions like acute appendicitis, appendicular abscess, doudenal perforation, ileal perforation. Ovarian torsion. mass formation, etc. where clinical and imaging studies are inconclusive.Methods: This study was conducted in the tertiary care hospital and the Department of General Surgery, Melmaruvathur Adhiparasakthi Institute of Medical Science and Research, Melmaruvathur. The period of study was from June 2017 to May 2018. All patients coming to the hospital with acute abdominal pain in the age group of ten years to seventy years were included in this study. Results: Majority of the patients had the findings relevant to the correct clinical diagnosis. However significant number of patients had unexpected findings and so the diagnosis was changed, and treatment also changed. Total 100 patients were included in this prospective study. 79 patients were found to have acute appendicitis. Duodenal perforation seen in 7 patients. Jejunal perforation seen in 2 patients. Mesenteric ischemia seen in 1 patient. Acute cholecystitis seen in 3 patients. Gall bladder perforation seen in 1 patient. Ectopic pregnancy was seen in 2 patients. Ovarian torsion seen in 3 patients. Ileocecal tuberculosis seen in 1 patient. No abnormality seen in 1 patient.Conclusions: The best approach in abdominal pain is to do diagnostic laparoscopy and proceed, rather than going for open laparotomy. Diagnostic laparoscopy gives all benefits of minimal invasive surgery. Not much of pain, shorter period of hospitalization, small scars, low infection rates and most importantly, accurate diagnosis and the correct treatment of most of the intra-abdominal conditions are the gifted things.
Study on prevalence of left ventricular diastolic dysfunction in chronic obstructive pulmonary disease
Authors: Rafi Mohamed , Jaber Monna Mohamed
Published: March 2019

Background: Left ventricular diastolic dysfunction (LVD) is very common in chronic obstructive pulmonary disease (COPD) patients. The aim of the present study was to LVD function in COPD patients using echocardiogram and to detect the presence of LVD dysfunction in all stages of COPD.Methods: This was an observational study done at Institute of Internal Medicine, Madras Medical College and Rajiv Gandhi Government General Hospital, Chennai, during the period from March 2015 to August 2015. The study included 100 patients with COPD. All patients were subjected to chest X-ray, electrocardiogram, pulmonary function test (PFT) and echocardiogram.Results: The results showed the prevalence rate of LVD dysfunction in 80% patients with COPD. There was a good significant correlation between age (p<0.001), status of smoking (p<0.05), chest X-ray findings (p<0.001) and stages of COPD (p<0.001) with incidence of LVD in study population.Conclusions: High prevalence of LVD dysfunction was noticed in patients with COPD. Hence patients with COPD should undergo routine examinations timely to prevent the incidence of associated cardiovascular complications.
Contribuições dos Fóruns de Discussão em um Curso de Educação a Distância, na Modalidade Blended Learning, ofertado na Rede Pública do Estado do Paraná".
Authors: França Creuza Martins , De Oliveira Jair , Kfouri Samira Fayez
Published: March 2019

Analisam-se, neste artigo, as contribuições dos fóruns de discussão para o processo de aprendizagem de professores da Educação Básica da rede pública do Estado do Paraná, em um curso na modalidade blended learning. O estudo foi realizado em abordagem qualitativa, e os dados foram coletados por meio dos registros das falas dos participantes postadas em fóruns disponíveis no ambiente virtual de aprendizagem (AVA). Buscou- se avaliar de que maneira os fóruns, sendo constituídos como espaços dialógicos, favoreceram a interação entre os participantes e promoveram a ação do pensamento empreendedor, estimulando-os à reflexão sobre os assuntos ali apresentados. Os resultados apontaram que o uso de fóruns pode potencializar a interação on-line em cursos a distância, desde que sejam concebidos de modo personalizado, levando em conta a realidade e a tipicidade do grupo dos participantes nos respectivos cursos.
Palavras-chave: Educação a distância. Empreendedorismo. Fóruns de discussão.
Relevância da pesquisa sobre Casuarina equisetifolia L.
Authors: Silva Alvaro Domingues da , Saraiva Victor Barbosa , De Oliveira Manildo Marcião , De Andrade Ocimar Ferreira
Published: March 2019

A espécie arbórea Casuarina equisetifolia L. tem sido estudada por seus atributos, e por seu potencial invasor e ameaçador às espécies nativas. Nesse contexto, um levantamento de artigos relacionados a essa espécie foi realizado através da metodologia de revisão sistemática. Objetivou-se avaliar a quantidade e qualidade de artigos relacionados à C. equisetifolia L., explicitando sua relevância acadêmica por meio da avaliação Qualis Capes e do Journal Citation Reports, para ajudar na escolha do método mais adequado no controle da casuarina no Parque Estadual da Costa do Sol. Ficou constatado que a maioria das publicações foram realizadas em revistas de grande abrangência científica nacional.
Positron Annihilation Lifetime Study on free Volume Changes in TLD by Gamma - irradiation
Authors: Journal Baghdad Science
Published: March 2019

Positron annihilation lifetime has been utilized for the first time to investigate the free - volume hole properties in thermolumenscent dosimeter ( TLD ) as a function of gamma-dosc . The hole volume, free volume fraction determined form orthopsitronium lifetime are found to be ?lamatically increase to large values , and then to minimum values as a function ofgamma-dose . The free - volume holes size is found to be 0.163nm’ and to have maximum of 0.166nm^ at the gamma-dose of 0.1 and 0.8 Gy, respectively-
Using He-Ne laser irradiation for enhancing cartilage Autografts
Authors: Journal Baghdad Science
Published: March 2019

thirty adult NewZealand rabbits used in this study, they were divided in to two groups (control and treaded with Helium — Neon laser). A square skin flap done on the medial aspect of the auricle of both sides, a square piece of cartilage incised, pealed out from each auricle and fixed in the site of the other, then the flaps sutured .The site of the operation in the rabbits of the treated group were irradiated using a Helium —Neon laser with (5mw) power for (10 days) began after the operation directly, (3 rabbits) from each group used for collection of specimens for histopathological examination at the weeks (1,2,3,4, & 6) weeks post the operation .The results revealed Early invasion of the matrix with elastic fibers which continue to the surrounding perichondrium, mature lacunae and complete healing occurred later at the 6th week in the treated group. Conclusion: Helium- Neon laser raised the mitotic activity of the cartilage cells, activated the reproduction processes in addition to the intra and extra regenerative reparation.
Effect of Magnetic Water Treatment on Prevention of CaCO3 Scales
Authors: Journal Baghdad Science
Published: March 2019

Permanent magnets of different intensities were used to investigate the effect of a magnetic field in the process of preventing deposits of calcium carbonate. The magnets were fixed on the water line from the tap outside. Then heating a sample of this water in flasks and measuring the amount of sediment in a manner weighted differences. These experiments comprise to the change of the velocity of water flow, which amounted to (0.5, 0.75, 1) m/sec through the magnetic fields that are of magnetic strength (2200, 6000, 9250, 11000) Gauss, and conduct measurements, tests and compare them with those obtained from the use of ordinary water.The results showed the effectiveness of magnetic treatment in reducing the rate of deposition of calcium carbonate where up to 60% after treatment, and this percentage is increasing with increasing magnetic field strength where up to 85% when the intensity of the magnetic field 9250 and 11000 Gauss at the velocity of the water flow of 0.75 m/sec. This percentage of reducing was investigated with increasing the velocity of flow of water through a magnetic field. Also the results showed an increase in total dissolved solids (TDS) as well as electrical conductivity and a decrease in the value of surface tension as a result of magnetic treatment.Observation with the photograph pictures of the distillation apparatus oriented in several laboratories, that the amount of sediment formed a thick layer in the device-free magnetic treatment, but it was not dense and in the few quantity in the apparatus treated with magnetic intensity (8000, 9250) Gauss.
Synthesis and Characterization of New phenolic Schiff bases Derivatives Based on Terephthaladehyde
Authors: Journal Baghdad Science
Published: March 2019

A variety of new phenolic Schiff bases derivatives have been synthesized starting from Terephthaladehyde compound, all proposed structures were supported by FTIR, 1H-NMR, 13C-NMR, Elemental analysis, some derivatives evaluated by Thermal analysis (TGA).
Antioxidant and free radical scavenging effects of Iraqi sumac ( Rhus coriaria L)
Authors: Journal Baghdad Science
Published: March 2019

This study was carried out to evaluate the antioxidant activity of Iraqi sumac seeds (Rhus coriaria. L) (Anacardiaceae). Total phenolic compounds and flavoniods were determined in three different sumac seed extracts (SSE) (aqueous,ethanolic and methanolic extract). For extraction Antioxidant activity of SSE were evaluated by various antioxidant assays, including total antioxidant capacity, reducing power,by using 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scavenging, nitric oxide scavenging, Hydroxyl radical scavenging, and metal ion chelating activities. These various antioxidant activities were compared with ascorbic acid as a standard antioxidant.The results showed that the three(SSE), contained large amounts of phenolic and flavoniods compounds. The results also showed that the three( SSEs ) have antioxidant activities , the methanolic (SSEs) contain larger amounts of phenolic and flavoniod compounds and have a higher antioxidant activities than that of aqueous or ethanolic (SSE).These results indicated that Iraqi aqueous and alcoholic extracts of Iraqi sumac in especial methanolic) SSE( are good scavengers for reactive oxygen species(ROS) and are a potential source of natural antioxidant, that may be used in pharmaceutical or food industry .
Using Bernoulli Equation to Solve Burger's Equation
Authors: Journal Baghdad Science
Published: March 2019

In this paper we find the exact solution of Burger's equation after reducing it to Bernoulli equation. We compare this solution with that given by Kaya where he used Adomian decomposition method, the solution given by chakrone where he used the Variation iteration method (VIM)and the solution given by Eq(5)in the paper of M. Javidi. We notice that our solution is better than their solutions.
Effect of the fungus Metarhizumanisopliae (Metchnikoff) Sorokin and actelic insecticide in the protection of bean seeds packaged in bag from infection by cowpea beetle
Authors: Journal Baghdad Science
Published: March 2019

this study was perform to defined the effect of fungus Metarhiziumanisopliae Sorokin with concentrations 5x101, 5x103 and 5x105 spore/ ml and Actelic insecticide with concentration 0.001% in
in rate of germinate treated string bean seeds also study effect of packed bags in two different type: jute and polypropylene bags which treated with fungal suspension pervious mention and insecticide in rate infested the string bean seeds packed in it.Results of the study showed the following:
Lower rate of weight loss of cowpea seeds appear in poly propylene bags 4.41, 5.95% after six months of treatment with 5x 105 spore/ ml and Actelic insecticide respectively compared with 15.08% to control treatment. The fungal concentrations and insecticide not effect Significantly in the rates of string bean germinate.
Distribution of Some Heavy Metals in Tigris River middle of Iraq
Authors: Journal Baghdad Science
Published: March 2019

This study was conducted from February 2010 to December 2010. Water Samples were collected every two months in three stations in Baghdad city. The study involved the assessment of concentrations of some heavy metals such as: Chromium, Cadmium, Copper, Iron, Lead, Manganese, Nickel and Zinc. the values of chromium were undetected for the entire of the study, while the rest of the heavy metal were ranged between 0.001 -0.438 mg / l, ND -0.077 mg / L, ND -0.778 mg / l, 0.36 - 0.011 mg / l, 0.011-0 .08mg/ l, ND - 0.1985 mg / l, ND -0.0416 mg / l, respectively. The results showed that the concentrations of heavy metals were fluctuated during the study period, except Lead which have high concentrations and exceeded the permit limits in all stations. Result reveled that station 3 was more polluted than other stations. Also, for more confirm results the SPSS program was used to test the significant difference between the stations.
Seasonal Study for Habitat of Myriophyllum spicatum L. in Al-Burgga Marsh, Hor Al-Hammar, Southern Iraq
Authors: Journal Baghdad Science
Published: March 2019

Myriophyllum spicatum distribution in Al-Burgga marsh, Hor Al-Hammar was described in relation to some of the physical-chemical properties for its habitat (water depth, light penetration, water temperature, water salinity, pH, dissolved oxygen, Ca+2, Mg+2, reactive NO2=, reactive NO3-1, and reactive PO4-3) during 2011, seasonally. CANOCO ordination program (CCA) was used to analyse the data. Its vegetation cover percentage was with its peak at summer, its value was 90 %, while the lowest value was 20 % in winter. Statistically, Positive relationships for WT, sal., Ca+2, Mg+2, reactive NO2=, reactive NO3-1, and reactive PO4-3 with the vegetation cover percentage were observed. While, negative relationships for WD, pH, and DO with the vegetation cover percentage were observed. Also, the negative relationship between light penetration and the vegetation cover percentage can be attributed to the water depth, which was shallow and the light penetration followed water depth and reached to the bottom during all of the period study. In addition, two species were registered with Myriophyllum spicatum community as associated species, which are Hydrilla verticillata and Ceratophyllum demersum.
Optimum conditions for ascorbic acid determination in three Iraqi citrus using HPLC technique
Authors: Journal Baghdad Science
Published: March 2019

A high-performance liquid chromatography method was employed for the quantitative determination of ascorbic acid (AA) which called vitamin C in three types of Iraqi citrus (orange mandarin and aurantium ) and to establish this goal , evaluation of ascorbic acid degradation is so important due to its significant criticality when exposure to ordinary atmospheric conditions. The chromatographic analysis of AA was carried out after their sequential elution with KH2PO4 ( as mobile phase) by reverse-phase HPLC technique with C8 column and UV detection at 214 nm. .Bad resolutions was appeared clearly for C8 column , so another alternative condition were carried out to improve the resolution by replacement of C8 by C18 column .Statistical treatments were used to calculate relative standard deviation (RSD%) for the results to gain acceptable confidence to the present work , so the linearity of calibration curve, accuracy, and repeatability of this method are all satisfactory.
Role of TGF-?1 in Urinary Bladder Carcinoma
Authors: Journal Baghdad Science
Published: March 2019

The present study aimed to evaluate sera TGF- ?1 concentration in patients with urinary bladder carcinoma (UBC). All malignant of them was transitional cell carcinoma (TCC) type , patients with urinary bladder disorders (UBD ) and healthy control , and to study the correlation between sera TGF-?1 levels and tumor stages and grades in UBC patients . A direct ELISA test was used to quantify the seraTGF-?1 concentrations in sera of 58 patients with urinary bladder carcinoma UBC of different grades (G) and stages (T) all malignant of them was transitional cell carcinoma (TCC) type , 15 from patients with UBD and 15 healthy subjects . Sera levels of TGF-?1 were elevated in patients with UBC and UBD compared to healthy (P ? 0.01) .There was no association between tumor stages and serum level of TGF-?1 (P?0.05) . Whereas there was an association between serum levels of TFG-?1 and tumor grades (p ?0.05) . Increased serum level was found in high grades G?2 of patient with UBC .
Mechanical and Thermal Properties of Epoxy-Graphite Composites
Authors: Journal Baghdad Science
Published: March 2019

This search study the effect of particle size of graphite on the mechanical and thermal properties of epoxy composites, where graphite adopted with particle sizes (45,53,75) ?m, respectively, and the percentages by weight (0,1,3,5,7,9)% for each size of this three particle sizes.Mechanical properties represented by the bending (three-point bending) and through which the conclusion is bending stress and modulus of elasticity, thermal properties were either through thermal conductivity tests.The results showed that the ratio(1%) is the maximum value of bending stress at the three particle size and the (45 ?m) is the maximum.Thermal conductivity result show is the maximum value at ratio (1%) of particle size(53 ?m)
Synthesis, Characterization, Thermal Analysis and Structural Studies of New Complexes with Tetradentate Ligand
Authors: Journal Baghdad Science
Published: March 2019

Some new complexes of 4-(5-(1,5-dimethyl-3-oxo-2-phenyl pyrazolidin-4- ylimino)-3,3-dimethyl cyclohexylideneamino) -1,5- dimethyl-2- phenyl -1H- pyrazol -3(2H) –one (L) with Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Pd(II), Re(V) and Pt(IV) were prepared. The ligand and its metal complexes were characterized by phisco- chemical spectroscopic techniques. The spectral data were suggested that the (L) as a neutral tetradentate ligand is coordinated with the metal ions through two nitrogen and two oxygen atoms. These studies revealed Octahedral geometries for all metal complexes, except square planar for Pd(II) complex. Moreover, the thermodynamic activation parameters, such as ?E*, ?H, ?S, ?G and K are calculated from the TGA curves using Coats –Redfern method. Hyper Chem -8 program has been used to predict structural geometries for compounds in gas phase. The heat of formation (?Hf) and bin ding energy (?Eb) at 298 °K for the free ligand and its metal complexes were calculated by PM3 method. The synthesized ligands and their metal complexes were screened for their biological activity against bacterial species, two Gram positive bacteria (Bacillus subtilis and Staphylococcus aureus) and two Gram negative bacteria (Escherichia coli and Pseudomonas aeruginosa).
Single-input Multiple-output Signals Third-order Active-R Filter for different Circuit Merit Factor (Q)
Authors: Journal Baghdad Science
Published: March 2019

Single-input Multiple-output Signals Third-order Active-R Filter for different Circuit Merit Factor Q Configuration is proposed. This paper discusses a new configuration to realize third-order low pass, band pass and high pass. The presented circuit uses Single-input Multiple-output signals, OP-AMP and passive components. This filter is useful for high frequency operation, monolithic IC implementation and it is easy to design .This circuit gives three filter functions low-pass, high-pass and band-pass. This filter circuit can be used for different merit factor (Q) with high pass band gain. This gives better stop-band attenuation and sharper cut-off at the edge of the pass-band. Thus the response shows wider pass-band. The Ideal value of this filter circuit which is closed to Ideal value of third-order active-R filter is at 0.8? Q ?6. The advantages of this circuit are reduction in size and weight, increased circuit reliability, more economical and easy for manufacturing.
Evaluating molecular study of the association of Glutathione S – Transferase GST (T1 , M1) genetic polymorphism in Iraqi Arab Femals with Type 2 Diabetes Mellitus and Coronary Artery Disease
Authors: Journal Baghdad Science
Published: March 2019

Coronary artery disease (CAD) is a major health concern and leading of death in individuals with type 2 diabetes mellitus (T2DM). Glutathione S – Transferase(GST) are known for their broad range of detoxification and in the metabolism of xenobiotics . The role of functional variants of these genes in the development of various disorder is proven. We investigated the possible role of these variants in the development of CAD in T2DM patients. In this case – control study a total of 60 patients (T2DM = 30 ; T2DM – CAD = 30) and 30 controls were included. Serum lipid profiles were measured and DNA was extracted from the blood samples. Multiplex PCR for GSTT1/M1 (present / null) polymorphism, were performed for genotyping of study participants. Gene frequency and lipid profiles were statistically analyzed for disease association. Regression analysis showed that, there was no significant difference of the frequency of GSTT1 (positive /null) genotype and GSTM1 (positive /null) genotype in the 3 study groups . GSTT1 – positive genotype is associated with a 0.51 fold increased ( OR = 0.51 ; 95%CI = 2- 0.1 ;P = 0.321 ) , while the GSTM1 – positive genotype was associated with a 3 fold increase ( OR = 3.06 ; 95%CI=1- 9.7 ; P = 0.055) .We conclude GSTT1 positive genotype considered to be a protective risk from CAD in T2DM patients . The GSTM1 – positive genotype it was considered to be a risk factor of the CAD in T2DM patients.
Identification of Candida species Isolated From Vulvovaginal Candidiasis Patients by Chromgen agar and PCR-RFLP Method
Authors: Journal Baghdad Science
Published: March 2019

This study focuses on diagnosis of Candida species causing Vulvovaginal Candidiasis using phenotype and genotype analyzing methods, and frequencies of candida species also using Vulvovaginal Candidiasis patients. 130 samples (100 from patients and 30 from non infected women) were collected and cultured on biological media. Identifying the yeasts, initially some phenotypic experiments were carried out such as germ tube, from motion of pseudohyphae and clamydospores in CMA+TW80 medium, API20 candida and CHROMagar Candida. Genomic DNA of all species were extracted and analyzed with PCR and subsequent Polymerase Chain Reaction - Restriction Fragments Length Polymorphism (PCR-RFLP) methods. Frequency of C. albicans, C. krusei, C. tropicalis , C. parapsilosis and C. glabrata were 46.4%, 31%, 18%, 7.2%, and 1.8%, respectively.The ITS1-ITS4 region was amplified and the Restriction enzyme Msp1 digests this region and was used to identify of candida species .Electrophoretically ribosomal DNA of C. albicans, C. krusei, C. tropicalis and C. glabrata produced two bands whereas the C. parapsilosis gave one band.
Adsorption and Thermodynamic Study of Direct Blue 71 Dye on to natural Flint Clay from Aqueous Solution
Authors: Journal Baghdad Science
Published: March 2019

The remove of direct blue (DB71) anionic dye on flint clay in aqueous solution was investigated by using a batch system for various dye concentrations. The contact time, pH, adsorbent dose, and temperature was studied under batch adsorption technique. The data of adsorption equilibrium fit with isotherm Langmuar and Freiundlich ,when the correlation coefficient used to elucidate the best fitting isotherm model. The thermodynamic parameters such as, ?Hº ,?Sº and ?Gº. Thermodynamic analysis indicated that the sorption of the dyes onto Flint clay was endothermic and spontaneous.
Bioadsorption of Heavy Metals From Industrial Wastewater Using Some Species of Bacteria
Authors: Journal Baghdad Science
Published: March 2019

Three isolated bacteria were examined to remove heavy metals from the industrial wastewater of the Diala State Company of Electrical Industries, Diyala-Iraq. The isolated bacteria were identified as Pseudomonas aeruginosa, Escherichia coli and Sulfate Reducing Bacteria (SRB). The three isolates were used as an adsorption factor for different concentrations of Lead and Copper (100, 150, and 200 ppm.), in order to examine the adsorption efficiency of these isolates. In addition, the effect of three factors on heavy metals adsorption were examined; temperature (25, 30, and 37 ?C), pH (3 and 4.5) and contact time (2 and 24 hrs). The results showed that the highest level of lead adsorption was obtained at 37 ?C by E. coli, P, aerugenosa and SRB with percentage of 95, 95.3 and 99.7 % respectively, whereas, E. coli, P. Aerugenosa and SRB gave a copper adsorption percentage of (40.63, 50.51 and 80.57%) respectively at 37 ?C. Moreover, E.coli showed different percentage of metal adsorption ranged from 6.4% to 95 % with lead concentration of 100 and 200 ppm at pH4.5 and for each of 2 and 24 hrs contact time, whereas, it exerts percentage of copper adsorption ranged from 3.5 % to 40.63 % at 100 and 200 ppm and pH value of 4.5 for similar contact time. P. aerugenosa was also shown to be involved in metal adsorption with percentage ranged from 1.39 % for lead concentration of 150 ppm to 97.9 % for 200ppm under pH of 3 and contact times of 2 and 24 hrs. Interestingly, SRB exhibits significant differences in metal absorption values ranged from 14.97 % for lead (100 ppm) to 99.32 % at 200 ppm with a pH value of 3 and contact times of 2 and 24 hrs and under different temperatures.
Synthesis of Some Mixed ligands Complexes of (2-hydroxy benzaldine)-4-amino Antipyrine and 1,10-phenanthroline and Studying their antibacterial activity
Authors: Journal Baghdad Science
Published: March 2019

Complexes from the ligand (2-hydroxy benzaldine)-4-aminoantipyrine with some transition metal ions V(l?),Cr(lll),Fe(lll) and Co(ll) were prepared in the presence of the co-ligand 1,10-phenanthroline in alcoholic medium. These compounds were characterized by the available techniques: FT-IR ,UV-Visible ,magnetic susceptibility, Flame atomic absorption technique as well as elemental analysis and conductivity mesurments .From these spectral studies, a square pyramidal structure proposed for V(IV) complex and an octahedral geometry for Cr(III),Fe(III) and Co(II) complexes. The biological activity of the ligands and their complexes were evaluated by a gar plate diffusion technique against three human pathogenic bacterial strains: Pseudomonas aerogenuosa, E.schriachia coli. and Staphlococcus arureus. Some of the complexes were found to have a good antibacterial activity a gainst these pathogens.
Improvement of the technique for the solution method of Gauss Seidel
Authors: Journal Baghdad Science
Published: March 2019

In this paper, a new approach was suggested to the method of Gauss Seidel through the controlling of equations installation before the beginning of the method in the traditional way. New structure of equations occur after the diagnosis of the variable that causes the fluctuation and the slow extract of the results, then eradicating this variable.
This procedure leads to a higher accuracy and less number of steps than the old method.
By using the this proposed method, there will be a possibility of solving many of divergent values equations which cannot be solved by the old style.
Kinetic and Mechanistic Studies for the Gas-phase Reaction of Ozone with 2, 3-Dimethyl-2-Butene and 1, 3-Butadiene
Authors: Journal Baghdad Science
Published: March 2019

The reactions of ozone with 2,3-Dimethyl-2-Butene (CH3)2C=C(CH3)2 and 1,3-Butadiene CH2=CHCH=CH2 have been investigated under atmospheric conditions at 298±3K in air using both relative and absolute rate techniques, and the measured rate coefficients are found to be in good agreement in both techniques used. The obtained results show the addition of ozone to the double bond in these compounds and how it acts as function of the methyl group substituent situated on the double bond. The yields of all the main products have been determined using FTIR and GC-FID and the product studies of these reactions establish a very good idea for the decomposition pathways for the primary formed compounds (ozonides) and give a good information for the effect of the methyl group on the degradation pathways. The results have been discussed from the view point of their importance in the atmospheric oxidation of these pollutants.
Inhibitory Effect of Bacteriophages Isolated from Sewage Water in the City of Kirkuk on some Types of Human Pathogenic Bacteria
Authors: Journal Baghdad Science
Published: March 2019

Most approaches to combat antibiotic resistant bacteria concentrate on discovering new antibiotics or modifying existing ones. However, one of the most promising alternatives is the use of bacteriophages. This study was focused on the isolation of bacteriophages that are specific to some of commonly human pathogens namely E. coli, Streptococcus pyogenes, Staphylococcus aureus, Proteus mirabilis, Pseudomonas aeruginosa, Salmonella spp. and Klebsiella pneumoniae. These bacteriophages were isolated from sewages that were collected from four different locations in Kirkuk City. Apart from S. pyogenes, bacteriophages specific to all tested bacteria were successfully isolated and tested for their effectiveness by spot test. The most effective bacteriophages that were isolated from sewages and sewage water of Al-Jumhori Hospital compared to other sites. It is concluded that the sewage water of hospitals represents a perfect environment for these bacteriophages.
Effect of Cyanobacteria Isolates on Rice Seeds Germination in Saline Soil
Authors: Journal Baghdad Science
Published: March 2019

Cyanobacteria are prokaryotic photosynthetic communities which are used in biofertilization of many plants especially rice plant. Cyanobacteria play a vital role to increase the plant's ability for salinity tolerance. Salinity is a worldwide problem which affects the growth and productivity of crops. In this work three cyanobacteria strains (Nostoc calcicola, Anabaena variabilis, and Nostoc linkia) were isolated from saline soil at Kafr El-Sheikh Governorate; North Egypt. The propagated cyanobacteria strains were used to withstand salinity of the soil and increase rice plant growth (Giza 178). The length of roots and shoot seedlings was measured for seven and forty days of cultivation, respectively. The results of this investigation showed that the inoculation with Nostoc calcicola, Anabaena variabilis, and Nostoc linkia increased root length by 27.0, 4.0, 3.0 % and 39, 20, 19 % in EC5 and 10 (ds/m), respectively. Similarly, they increased shoot length by 121, 70, 55 %, 116, 88, 82 % in EC5 and 10 (ds/m), respectively. In EC15and more concentrations, control rice plants could not grow while those to which cyanobacteria were inoculated could withstand only EC15 but not other elevated concentrations. These results encourage using Nostoc calcicola,Anabaena variabilis, and Nostoc linkia as biofertilizer for rice plant in the saline soil for increasing growth and decrease soil electrical conductivity.
Influence of Lead Exposure in the Expression of Calmodulin – Related Genes: A Preliminary Study on Workers Working in Industry of Batteries, In Iraq
Authors: Journal Baghdad Science
Published: March 2019

Most pathological effects of lead on the body are due to ability of lead to bind with important cellular molecules of various tissues and organs leading to formation abnormal molecules and thus to emergence of pathological conditions. To evaluation the risk to the health status of Iraqi workers who work in the batteries industry, expression of three types of calmodulin related genes were examined. Blood samples were collected from worker working in Iraqi industry of batteries (located in Al-Waziriya), then RNAs extraction were done thereby gene expression for Calcium/Calmodulin- dependent protein kinase2 (CaMKK2), C-X-C Chemokine receptor 4 (CXCR4) and mitogen activated protein kinase kinase 6 (MAP2K6) was done for each sample by using RT-qPCR. The study showed that the expression of CXCR4 gene was significantly decrement in the lead exposed workers meanwhile the MAP2K6 gene insignificantly increment in those workers, but no effect appeared on their CaMKK2 gene expression. Conclusion obtained from this study is that lead has ability to impact on calmodulin related genes in the workers working in the batteries manufacture, but this ability is variable according to the type of gene.
An Efficient Numerical Method for Solving Volterra-Fredholm Integro-Differential Equations of Fractional Order by Using Shifted Jacobi-Spectral Collocation Method
Authors: Journal Baghdad Science
Published: March 2019

The aim of this article is to solve the Volterra-Fredholm integro-differential equations of fractional order numerically by using the shifted Jacobi polynomial collocation method. The Jacobi polynomial and collocation method properties are presented. This technique is used to convert the problem into the solution of linear algebraic equations. The fractional derivatives are considered in the Caputo sense. Numerical examples are given to show the accuracy and reliability of the proposed technique.
Anticorrosion Behavior of Deposited Magnetite on Galvanized Steel in Saline Water Using RF-Magnetron Sputtering
Authors: Journal Baghdad Science
Published: March 2019

Thin films of Magnetite have been deposited on Galvanized Steel (G-S) alloy using RF-reactive magnetron sputtering technique and protection efficiency of the corrosion of G-S. A Three-Electrodes Cell was used in saline water (3.5 % NaCl) solution at different temperatures (298, 308, 318 & 328K) using potentiostatic techniques with. Electrochemical Impedance Spectroscopy (EIS) and fitting impedance data via Frequency Response Analysis (FRA) were applied to G-S alloy with Fe3O4 and tested in 3.5 % NaCl solution at 298K.Results taken from Nyquist and Bode plots were analyzed using software provided with the instrument. The results obtained show that the rate of corrosion of G.S alloy increased with increasing the temperatures from 298 to 323K; and showed that deposition of Fe3O4 caused protection efficiency to reach 79.76% for G-S in 318K. In addition the enthalpy & entropy of activation were evaluated. Apparent energies of activation have been calculated for the corrosion process of uncoated and coated G.S alloy by sputtering technique in saline water (3.5 % NaCl). The morphological analysis was carried out using Scanning Electron Microscopy (SEM) technique.
Tadpole Domination in Graphs
Authors: Journal Baghdad Science
Published: March 2019

A new type of the connected domination parameters called tadpole domination number of a graph is introduced. Tadpole domination number for some standard graphs is determined, and some bounds for this number are obtained. Additionally, a new graph, finite, simple, undirected and connected, is introduced named weaver graph. Tadpole domination is calculated for this graph with other families of graphs.
A stuy Some physical properties for play (vunyl alcohol) in aquecous solution at four temperatures
Authors: Journal Baghdad Science
Published: March 2019

The densities and visconsities of solutions of poly(vinyl alcohol)(PVA) molccuar weight (14)kg.mol-1in water up to 0.035%mol.kg-1
Effect Altsoam and add ammonium chloride and sodium Pkarbinat in some drinking water productivity and physiological traits of male chicken meat thermally stressful
Authors: Journal Baghdad Science
Published: March 2019

The use of male mothers fur c meat Fabro to learn Effect concentrations of ammonium chloride NH4CL and Bacarbonnat sodium NaHCO3 in drinking water by heat stress and Altsoam during heat stress on some of the qualities of productivity and Alvesrgih divided animals to 6 transactions, namely: - control without adding NH4CL, NaHCO3 and Altsoam (treatment 1) Altsoam-1200 of 7-4 weeks old chicken meat to heat patrol 25-34-25 .. 7 weeks old Weight was measured gravimetric vivo increase feed consumption
the effect of ethanol on the level of sialic acid in the brain
Authors: Journal Baghdad Science
Published: March 2019

The study dosage ethanol in the total content of acid sialic TC and acid sialic associated fat (LBSA) in blood serum and congener brain Dkor Jerd eggs study included dosage 20 animals of male rat Ald ethanol daily for a period of four weeks and concentrations 20% and 30%, 40%, 50% and size of dose 5mlThe results of the study showed that levels of TSA homogeneous in the brain and blood serum significantly reduced Ankhvaza