bluuebunny/crossref_metadata_2025 huggingface dataset:
Gender, transnational female migration and domestic work in Greece
Authors: Fouskas Theodoros , Gikopoulou Paraskevi , Ioannidi Elisavet , Koulierakis George
Published: March 2019

In global labour markets, migrant workers are mainly found in precarious, low-status/low-wage occupations in undeclared work and the underground/informal sector of the economy which demands a low paid, uninsured, mobile, temporary and flexible workforce. This article argues that migrant women are mostly employed as domestic workers in various countries that demand precarious, low-status/low-wage service workers and personal services. Feminist scholarship on migration underlines, that social constructions of gender and racial stereotypes drive men and women into specific roles and therefore dictate their experiences. Social constructions of gender cannot be considered separate from social constructions of class, gender, race, ethnicity, and sexuality; female migrants are disassociated from family relationships, community associations, solidarity networks, and become susceptible to discrimination based on race and ethnicity, class and gender in the reception countries. This article provides an intersectional review of research on domestic work, healthcare and community networks in Greece (1990-2018). Intersectionality produces assumptions set in women’s race and ethnicity, projecting unequal labour rights among sexes in Greece. Gender, race and ethnicity subject women to obedience, susceptibility and exploitation, confining them to domestic work, and low-paid jobs without social rights. Last but not least, this article suggests that ethnic background and unstable legal residence status works as a mechanism of control and suppression, which in turn force female migrants to accept low wages, refrain from demanding healthcare services and from seeking support from migrant community associations. Employers confiscate their documents, monitor them and threaten to report them to the authorities, thus institutionalising exploitation, leading to forceful application of discipline, consent, subordination, obedience and dependency of domestic workers.
Social learning in large online audiences of health professionals: Improving dialogue with automated tools
Authors: Margolis Alvaro , López-Arredondo Antonio , García Sofìa , Rubido Nicolás , Caminada Camilo , González Daniel , Tansini Libertad
Published: March 2019

This article was migrated. The article was marked as recommended. Massive open online courses (MOOCs) bring about the opportunity to reach large international audiences of health professionals. However, change in clinical practice eventually needs social interaction, to validate the new knowledge with trusted peers, in the agreement and adoption phases of change. How can meaningful dialogue take place without scaling up expert tutoring?The extensive experience from social network applications such as Facebook or Twitter provides an opportunity to improve dialogue among peers and with experts automatically and seamlessly, as part of what is called social learning analytics (SLA). Large amounts of data about prior relationships among participants in a course - similar to Facebook and other social applications-, among participants and course materials - similar to Netflix or Amazon -, as well as natural language processing, could be obtained, and then analyzed and used to improve the educational processes and outcomes.In this paper, a series of examples with pilot uses of SLA in the context of massive online courses for physicians and other health care professionals are described. They include: 1) Forecasting of academic accomplishment. 2) Team-based face-to-face learning as part of massive online courses. 3) Analysis of existing connections, to ensure the most connected discussion groups of course participants. 4) Facebook-like dialogue with other course participants who are previously related, as well as with the Course Faculty. 5) Crowdsourcing and friendsourcing, for recommending useful study materials or future courses. 6) Natural language processing, to classify posts in online discussions.The intent of this manuscript is to create awareness in the medical education community that this type of analysis is possible and potentially useful, to receive feedback on the possible functionalities as well as critique these developments, and to create a space for collaboration in research and innovation projects with other interested parties.
Mutation Profile of ResectedEGFR-Mutated Lung Adenocarcinoma by Next-Generation Sequencing
Authors: Zhao Ze-Rui , Lin Yao-Bin , Ng Calvin S.H. , Zhang Rong , Wu Xue , Ou Qiuxiang , Chen Wendan , Zhou Wen-Jie , Lin Yong-Bin , Su Xiao-Dong , Shao Yang W. , Long Hao
Published: March 2019

Background

The efficacy of adjuvant targeted therapy for operable lung cancer is still under debate. Comprehensive genetic profiling is needed for detecting co-mutations in resected epidermal growth factor receptor (EGFR)-mutated lung adenocarcinoma (ADC), which may interfere the efficacy of adjuvant tyrosine kinase inhibitor (TKI) treatment.

Materials and Methods

Mutation profiling of 416 cancer-relevant genes was conducted for 139 resected stage I–IIIa lung ADCs with EGFR mutations using targeted next-generation sequencing. Co-mutation profiles were systematically analyzed.

Results

Rare EGFR alterations other than exon 19 deletion and L858R, such as L861Q (∼3%) and G719A (∼2%), were identified at low frequencies. Approximately 10% of patients had mutations in EGFR exon 20 that could confer resistance to first-generation TKIs. Ninety-one percent of patients harbored at least one co-mutation in addition to the major EGFR mutation. TP53 was the top mutated gene and was found more frequently mutated at later stage. Markedly, NF1 mutations were found only in stage II–III ADCs. Conversely, RB1 mutations were more frequent in stage I ADCs, whereas APC mutations were observed exclusively in this group. Thirty-four percent of patients with EGFR TKI-sensitizing mutations had genetic alterations involving EGFR downstream effectors or bypass pathways that could affect the response to EGFR TKIs, such as PIK3CA, BRCA1, and NOTCH1.

Conclusion

Operable lung ADCs with EGFR TKI-sensitizing mutations are associated with a high proportion of co-mutations. Mutation profiling of these resected tumors could facilitate in determining the applicability and efficacy of adjuvant EGFR TKI therapeutic strategy.

Implications for Practice

The efficacy of adjuvant epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) therapy for lung cancer harboring EGFR mutation after surgical resection is still under debate. Next-generation sequencing of 416 cancer-relevant genes in 139 resected lung cancers revealed the co-mutational landscape with background EGFR mutation. Notably, the study identified potential EGFR TKI-resistant mutations in 34.71% of patients with a drug-sensitizing EGFR mutation and who were naive in terms of targeted therapy. A comprehensive mutation profiling of these resected tumors could facilitate in determining the applicability and efficacy of adjuvant EGFR TKI therapeutic strategy for these patients.
Conocimiento y exposición a riesgos laborales del personal de salud en el área quirúrgica
Authors: Solís Flores Laura , Zambrano Ortega Beatriz , Acuña Rojas Rosalinda , Saldaña Ortega Alejandra , García Zamora Perla Guadalupe
Published: March 2019

Identificar los conocimientos y el tiempo de exposición a riesgos laborales del personal adscrito a quirófano en un hospital para personas sin seguridad social. Métodos: Estudio de tipo descriptivo, transversal y prolectivo. Criterios de inclusión: Personal con más de dos años trabajando en el quirófano. Muestreo no probabilístico y consecutivo, n= 140 personas. Se diseñó un cuestionario anónimo que constó de dos áreas: la primera de conocimientos con 14 preguntas, con la puntuación de: 0-5 aciertos correctos = desconocen, 6-10 aciertos correctos = conocen poco, 11 o más aciertos correctos = sí conocen. La segunda área constó de 22 preguntas con los días de exposición: De 25 días a más y no expuestos. Se aplicó una prueba piloto y se obtuvo una confiabilidad con alfa de Cronbach de 0.71 La recolección de datos se realizó en un periodo de 3 meses. Resultados: Es poco significativo el desconocimiento que tienen los servidores del área quirúrgica; se encontró que 55.7% están expuestos a riesgos biológicos, a riesgos físicos 66.4%, a riesgos químicos 58.6%, en cuanto a riesgos ergonómicos el trabajar de pie ocupó el 60.7% y sentado durante la jornada 80.0%. En cuanto a riesgos psicológicos, los trabajadores se someten a estrés laboral en un 61.4%. Conclusiones: La falta de conocimientos aunado al tiempo de exposición incrementa el riesgo de padecer alguna enfermedad laboral. Lo que abre nuevos estudios como: ¿De qué se enferman los que están mayor tiempo expuestos y carecen de conocimientos
Diagnóstico de seguridad y salud en el trabajo del sector no estatal
Authors: Peña Fernández Aliuska
Published: March 2019

En Cuba se instauran formas de gestión no estatal, de modo que un sector que era mínimo en la población se volvió importante. Pertenecer a este sector no exonera de la adecuada protección a la salud de los individuos. En Moa, por su amplio desarrollo industrial, se presta especial atención a esta temática como motor impulsor de la prevención de accidentes y la calidad de vida de los trabajadores. Objetivo: Determinar la situación de la Seguridad y Salud en el Trabajo (SST) del sector no estatal para incidir en la toma de decisiones para el fortalecimiento y perfeccionamiento de los mecanismos de inspección estatal y sindical. Adicionalamente con estos resultados se brindará información a los organismos pertinentes sobre Métodos: Se utilizó un procedimiento que incluyó el Método Delphi, el Método de Kendall, la encuesta como instrumento empírico para la recolección de la información y el análisis de fiabilidad para la encuesta. Resultados: Los elementos más negativos en la atención de la SST del sector no estatal son la posesión de los medios de protección personal, el desconocimiento de la legislación y que no se toman medidas para mitigar o eliminar los riesgos en los puestos de trabajo. Conclusiones: La atención a esta actividad en el sector no constituye una prioridad, causado por ser incipiente, por no concebirse como un requisito para el otorgamiento o retiro de licencias, además persiste la visión de la SST como costo que no permite la orientación intencionada a su gestión en este sector como una necesidad inmediata.
Prevalencia de desórdenes músculo-esqueléticos y factores asociados en trabajadores universitarios de ciencias económicas, educación y salud
Authors: Padilla Morales Jaime Antonio , Contreras Jauregui Fabian Andres
Published: March 2019

Determinar la prevalencia de desórdenes musculo esqueléticos y factores asociados en trabajadores de La Corporación Universitaria de Ciencias Económicas, Educación y Salud. Métodos: Se realizó un estudio descriptivo de corte transversal. Se aplicó una encuesta estructurada utilizando el Cuestionario Nórdico Estandarizado y aspectos relacionados con agentes de riesgo evaluados en la Primera Encuesta Nacional de Condiciones de Salud y Trabajo del 2007. Resultados: Se aplicó la encuesta a 44 trabajadores de una Institución de Educación Superior de Carácter Privado. Los resultados mostraron mayor prevalencia de sintomatología dolorosa en cuello 54.3 %, espalda alta 53.6 %, muñeca y mano 46.4 % y espalda baja (lumbar) 42 %. Entre los factores asociados relacionados con agentes biomecánicos reportados por los trabajadores se encuentran la adopción de posturas mantenidas y que producen cansancio durante toda la jornada laboral (22.7 %), la movilización de cargas en menos de la mitad de la jornada y con el mayor porcentaje de reporte se encuentra el movimiento repetitivo en manos y brazos 49.3 %; entre los factores individuales se encuentran el índice de masa donde un 31.2 % de los encuestados presentaron sobrepeso, y un 1.4 % obesidad, la inactividad física del 50.7 % aspectos que representan un estilo de vida sedentario. Conclusión: Los resultados revelan que existe asociación entre la exposición a factores individuales, agentes biomecánicos, y laborales y la prevalencia de desórdenes músculo esqueléticos, por lo cual es importante la implementación de un programa de vigilancia epidemiológica de desórdenes músculo esqueléticos.
Nanoyapılı TiO2 Film Yüzeyinde TiO2/ZnO ve TiO2/CuO Heteroyapıların Oluşturulması ve Fotokatalitik Aktivitelerinin İncelenmesi
Authors: DİKİCİ Tuncay , YURDDAŞKAL Metin
Published: March 2019

Bu çalışmada, saf titanyum yüzeyinde üç farklı aşamada TiO2/ZnO ve TiO2/CuO heteroyapıları oluşturularak her bir farklı oksit bileşiğin fotokatalitik performansları incelenmiştir. İlk olarak; elektrokimyasal anotlama tekniği ile saf titanyum yüzeyinde nanoyapılı TiO2film yapısı oluşturulmuştur. Bu işlemin sonrasında, TiO2film yüzeylerine elektrolitik yöntemle Zn ve Cu kaplanmıştır. Zn ve Cu kaplanmış bu örnekler 500 oC’de 2 saat boyunca ısıl işleme tabi tutularak TiO2/ZnO ve TiO2/CuO yapılarının oluşumu sağlanmıştır. Hazırlanan örneklerin kristalin yapısı ve yüzey morfolojisi X ışını kırınım cihazı ve taramalı elektron mikroskobu ile analiz edilmiştir. Fotokatalitik performans testleri, belirli zaman aralıklarında ultraviyole ışık altında bekletilen metilen mavisi çözeltisinden alınan absorbans ölçümleri ile gerçekleştirilmiştir. Testlerin sonucunda en iyi fotokatalitik bozundurma performansına ve reaksiyon hız sabitine TiO2/ZnO numunesinin sahip olduğu anlaşılmıştır.
Gözenekli Yapıya Sahip Kalça Protezi Tasarımı ve Uyluk Kemiği Üzerinde Sonlu Elemanlar Analizi
Authors: GHAHRAMANZADEH ASL Hojjat , YILMAZ Serap , SARI Ertuğrul
Published: March 2019

Uyluk kemiğinin yuvarlak başı (head of femur) kırıklarının tedavisinde, kalça protezi uygulanması sıklıkla kullanılmaktadır. Bununla birlikte, kullanılan protezlerin tasarımındaki farklılıklar, kullanılan malzeme özellikleri ve kemik hücrelerinin proteze bağlanması protezlerin biyomekanik davranışını büyük ölçüde etkilemektedir. Bu çalışmada, uyluk kemiği kırıklarında kullanılan gözenekli yapıya sahip kalça protezi tasarımı gerçekleştirilmiştir. Ayrıca kemiğin iyileşme haftalarına göre sergilediği özellikler de dikkate alınarak sonlu elemanlar yöntemiyle analizleri gerçekleştirilmiştir. Bu amaçla, iki parçadan oluşan kalça protezi, ayrıca iki farklı modelde ve üç farklı yoğunluğa sahip gözenekli yapılar SolidWorks 2018 yazılımı kullanılarak tasarlanmıştır. Kalça protezi malzemesi ve ayrıca farklı iyileşme periyotlarında oluşan kallus yapıların malzeme özellikleri de dikkate alınarak efektif elastisite modülü analizleri yapılmıştır. Daha sonra elde edilen sonuçlara göre kalça protezi uyluk kemiğine monte edilmiştir. Elde edilen modeller, 1000N’luk eksenel kuvvet altında ANSYS 18.0 yazılımı kullanılarak analiz edilmiştir. Gerçekleştirilen analizler sonucunda; kalça protezinde gözenekli yapılar kullanıldığından, yapılarda oluşan gerilmelerin daha düşük değerlerde olduğu tespit edilmiştir. Ayrıca kallus yapısının mekanik özelliklerindeki değişimin, kemik-protez yapısı üzerindeki etkiler bakımından önemli parametre olduğu sonucuna varılmıştır.
Türkiye Faunası İçin Yeni Bir Su Kenesi (Acari, Hydrachnidia) Kaydı: Nilotonia (Manotonia) persica Pešić & Saboori, 2006
Authors: ESEN Yunus , ERMAN Orhan
Published: March 2019

Nilotonia(Manotonia) persicaPešić & Saboori, 2006 iki dişi birey üzerinden İran’dan tanımlanmıştır. Bu türün dişileri diğer Nilotoniatürlerinden iki küçük ön plak ve bir arka plak, ilk üç bacak çiftindeki tırnaklarda iç kenarda kama şeklinde küçük bir çıkıntı, pedipalpal tibiada küçük ventral çıkıntılar, çok büyük olmayan arka eşeysel destek plağı ve oldukça narin kelisere sahip olmaları ile ayrılır. Daha sonra Pešić ve Vafaei (2009) tarafından N. (Manotonia) persica’nın erkeği İran’dan tanımlanmıştır. Erkekler ise ilk üç çift bacaktaki tırnaklarda iç kenarda küçük bir çıkıntı taşıması ile diğer türlerden ayrılır. Bu çalışmada, 2017 yılında Bingöl’ün Solhan ilçesinden bu türün iki erkek ve iki dişi bireyi toplanmıştır. Bingöl’den toplanan örnekler, N. (Manotonia)persica’nın daha önce verilen tanımına tamamen uymaktadır. Türkiye’den Manotoniaalt cinsine ait ikinci kayıt olan bu türe ait örneklerin morfolojik özellikleri, çeşitli organlara ait ölçümleri ve çizimleri verilmiştir.
Analysis of the Relationship Between Turning Signal Detection and Motorcycle Driver’s Characteristics on Urban Roads. A Case Study
Authors: Micucci Alfonso , Mantecchini Luca , Sangermano Maurizio
Published: March 2019

The relationships among the potential causes of a car and motorcycle collision involving turn maneuvers as well as the perception of rear and front turn signal (on/off) configuration is examined in this paper. The investigation has been based on data pooled from the answers of a survey proposed to 136 people, with special regards to the correct detection of indicators aspect. Experimental videos have been realized during the tests campaign, both in urban and suburban areas, using a 360-camera attached to a motorcyclist’s helmet, reproducing vehicular conflicts able to potentially generate crash risks. The detection of the blinker was combined with other factors (e.g. age, gender, location of the test site, presence of the car behind tester vehicles and if the bikers are also habitual car or bike drivers) in a stepwise logistic regression that modelled the odds of detecting the turn signal turned on as a function of all of these factors. The results suggest the existence of a connection between the detection of the turn signal aspect and some of the variables considered (e.g. age, being a cyclist or a car driver and the presence of a protecting car).
Determination of the neutron refleetion coefficient as a function of reflector material
Authors: Journal Baghdad Science
Published: March 2019

This work presents a simple method for determination of the neutron reflection coefficient (n) as a function of different neutron reflector materials.A laboratory neutron source (Am-Be) with activity of 16 ci is employed with a (BF3) neutron detector. Am-BeThree types of reflector materials are used as samples, the thickness of each sample is (5cm).It is found that( ?7) is: -For polyethlyene = 0.818
The Effect of Heat Treatment on the Magnetic and Mechanical properties offe - Ni alloys.
Authors: Journal Baghdad Science
Published: March 2019

The aim of this work is studying the binary system ??'??? Ni?)with two ratios (y=36,80) by using casting method for preparing the samples.Magnetic and Mechanical properties have been studidt different httrea^nttem^rature.All the alloys were found a ferromagnetic behavior and sensitive to the heat treatment. Best properties were found at the heat treatment 1100 C°.A significant different results were found above 1100C° for lower magnetic and mechanical values. This is possibly due to the change on the degree of magnetic moment orders, in which most of the moments are started to remove from coupled ferromagnetically.?
Couniform Modules
Authors: Journal Baghdad Science
Published: March 2019

In this paper we introduce and study a new concept named couniform modules, which is a dual notion of uniform modules, where an R-module M is said to be couniform if every proper submodule N of M is either zero or there exists a proper submodule N1 of N such that is small submodule of (denoted by )
Also many relationships are given between this class of modules and other related classes of modules. Finally, we consider the hereditary property between R-module M and R-module R in case M is couniform.
CMC Determination and Thermodynamic Micellisation Of NPE Surfactant In Aqueous And CH3OH – H2O Solvents
Authors: Journal Baghdad Science
Published: March 2019

The critical micelle concentration (CMC) of nonylphenolethoxylate (NPE) surfactant has been determined by measuring the surface tension as a function of the molar concentration of the surfactant in aqueous and binary mixture of water + methanol solutions at a temperature range from 20?C to 35?C. The interfacial parameters ?max, Amin, ?cmc and ?G?ads were calculated. The results indicate that the CMC increases as the temperature increases and that the addition of methanol the CMC decreases. The thermodynamic parameters such as standard Gibbs free energy (?G?), enthalpy (?H?), and entropy (?S?) of micellization were estimated using the change of CMC with temperature. The enthalpy – entropy compensation behavior of the surfactant was evaluated and a good linearity in the compensation plot has been observed.
Synthesis and Characterization of Novel Methyl 2-(1,7,7-Tri methylbicyclo[2.2.1]hept-2-yieldene)hydrazinecarbodithioate Schiff Bases Derived From Methylhydrazine carbodithioate And Their Bi(III) And Ag(II) Complexes
Authors: Journal Baghdad Science
Published: March 2019

Novel bidentate Schiff bases having nitrogen-sulphur donor sequence was synthesized from condensation of racemate camphor, (R)-camphor and (S)-camphor with Methyl hydrazinecarbodithioate (SMDTC). Its metal complexes were also prepared through the reaction of these ligands with silver and bismuth salts. All complexes were characterized by elemental analyses and various physico-chemical techniques. These Schiff bases behaved as uninegatively charged bidentate ligands and coordinated to the metal ions via ?-nitrogen and thiolate sulphur atoms. The NS Schiff bases formed complexes of general formula, [M(NS)2] or [M(NS)2.H2O] where M is BiIII or AgI, the expected geometry is octahedral for Bi(III) complexes while Ag(I) is expected to oxidized to Ag(II) forming square planner complexes.
Synthesis and Evaluation of Antimicrobial activity of several new Maleimides to Benzothiazole moiety
Authors: Journal Baghdad Science
Published: March 2019

In this work, a series of new maleimides linked to substituted benzothiazole moiety were synthesized. Synthesis of these new cyclic imides were performed via three steps, the first one involved preparation of a series of 2-aminobenzothiazole substituted with different substituents via reaction of different primary aromatic amines with ammonium thiocyanate and bromine in glacial acetic acid. The prepared 2- amino benzothiozoles were introduced in the second step in reaction with maleic anhydride producing a series of N-(substituted benzothiazole-2-yl) maleamic acids.The resulted maleamic acids were dehydrated in the third step via treatment with acetic anhydride and anhydrous sodium acetate to afford a series of the desirable N-(substituted benzothiazole -2-yl) maleimides.The synthesized maleimides were screened for thier antibacterial activity against two types of bacteria including (staphylococcus aureus) Gram positive and (Klebsiella pneumoniae) Gram negative bacteria respectively.Antifungal activity of the prepared imides also were tested against (Candida albicans) fungi.The new compounds were found to exhibit good antibacterial and antifungal activities.
Spectrophotometric Determination of Bismuth(III) with 4-(2-pyridylazo) Resorcinol-Application to Waters and Veterinary Preparation
Authors: Journal Baghdad Science
Published: March 2019

This paper describes the development of a simple spectrophotometric determination of bismuth III with 4-(2-pyridylazo) resorcinol (PAR) in aqueous solution in the presence of cetypyridinium chloride surfactant at pH 5 which exhibits maximum absorption at 532 nm. Beer's law is obeyed over the range
5-200 µg/25 mL. i.e. 0.2-8 ppm with a molar absorptivity of 3×104 l.mol-1.cm-1 and Sandell's sensitivity index of 0.0069 µg.cm-2. The method has been applied successfully in the determination of Bi (III) in waters and veterinary preparation.
Effect of aqueous and alcohol (phenol) extract from cyperus rotundus on mitotic Division in tap roots of Allium cepa
Authors: Journal Baghdad Science
Published: March 2019

This study was conducted to test the effect of aqueous and alcoholic extracts for cyperus rotundus on the mitosis in tap roots of Allium cepa. the result of general an identical qualitative tests showed contains certain compounds that of crude aqueous and alcoholic extract, Used as five different concentrations of (10, 20.38, 56, 75) mg / ml for a period of four hours of treatment.
After the chemical has been detected for some preliminary chemical compounds of the crude aqueous extract, while the alcoholic extract either phenol compound has been detected for phenols using several techniques included the use of thin layer chromatography TLC and measurement of disability factor RF and the degree of fusion and measurement of absorbance.
The results showed that the crude aqueous extract and alcoholic extract and phenol their impact inhibitive as decreased normal division in all concentrations, where it decreased to 50% of the control treatment at the highest concentration also led all transcription to stop cells in metaphase at different rates and there were some chromosomal aberration including Bridges.
With Solvent Extraction Method, and via new Organic Reagent 2-(Benzo thiazolyl azo)-4,5- Diphenyl Imidazole for Spectrophotometric Determination of Copper (II) in different Samples
Authors: Journal Baghdad Science
Published: March 2019

The new organic reagent 2-[Benzo thiazolyl azo]-4,5-diphenyl imidazole was prepared and used as complexing agent for separation and spectrophotometric determination of Cu2+ ion in some samples include plants, soil, water and human blood serum. Initially determined all factors effect on extraction method and the results show optimum pH was (pHex=9), optimum concentration was 40?g/5mLCu2+ and optimum shaking time was (15min.), as well stoichiometry study appears the complex structure was 1:1 Cu2+: BTADPI. Interferences effect of cations were studied. Synergism effect shows MIBK gave increasing in distribution ratio (D). Organic solvent effect appears there is no any linear relation between dielectric constant for organic solvent used and distribution ration (D). Thermodynamically found the reaction was Endothermic reaction, with ?Hex= 0.0131 KJ.mole-1,?Gex=-54.20 KJ.mole-1 ,?Sex= 167.84 J.mole-1.Beer’s law was obeyed over the concentration 1-30?g/5mL, and ?=922.90 Lmol-1.cm-1,with detection limit 1.7×10-5and Sandell’s sensitivity 6.8× 10-7 gcm-2.
Effect of aqueous extract from Marjoram against Salmonella and cholera bacteria
Authors: Journal Baghdad Science
Published: March 2019

Five different bacterial isolates [ Vibrio cholera (Ogawa) , Vibrio cholera (Inaba) , Salmonella typhi , Salmonella paratyphi and ? Salmonella typhimurium ] were obtained from the Central Health Laboratory . Both sensitivity tests (MIC , MBC and wells method ) against these bacteria were performed by using the aqueous of leaves extract of Marjoram plant. The results cleared that the values of MIC for Vibrio cholera serotypes Ogawa and Inaba were 100 mg/ml , while the value of MBC was 200 mg/ml. The value of the Inhibition zone at 100 mg /ml concentration for both Ogawa and Inaba were 13 mm and 9 mm respectively. Our results showed that the three types of Salmonella didn’t show any inhibition zone at 200 mg/ml .
Computer aided photographic memory enhancement and speed reading (case study)
Authors: Journal Baghdad Science
Published: March 2019

This work aimed to design and testing of a computer program – based eyeQ improvement, photographic memory enhancement, and speed reading to match the reading speed 150 – 250 word per minute (WPM) with the mind ability of processing and eye snap shooting 5000WPM . The package designed based on Visual Basic 6. The efficiency of the designed program was tested on a 10 persons with different levels of education and ages and the results show an increase in their reading speed of approximately 25% in the first month of training with noticeable enhancement in the memory as well as an increase in the ability to read for longer time without feeling nerves or boring, a nonlinear continuously increase in reading speed is assured after the first month with a hope of reaching a target of 3000WPM within 3 – 5 years of training and that is what is called photographic memory where most of the read data processed in right side of the mind, the smaller age, and higher level of education is an effective factor on the results.
Parallel Computing for Sorting Algorithms
Authors: Journal Baghdad Science
Published: March 2019

The expanding use of multi-processor supercomputers has made a significant impact on the speed and size of many problems. The adaptation of standard Message Passing Interface protocol (MPI) has enabled programmers to write portable and efficient codes across a wide variety of parallel architectures. Sorting is one of the most common operations performed by a computer. Because sorted data are easier to manipulate than randomly ordered data, many algorithms require sorted data. Sorting is of additional importance to parallel computing because of its close relation to the task of routing data among processes, which is an essential part of many parallel algorithms.
In this paper, sequential sorting algorithms, the parallel implementation of many sorting methods in a variety of ways using MPICH.NT.1.2.3 library under C++ programming language and comparisons between the parallel and sequential implementations are presented. Then, these methods are used in the image processing field. It have been built a median filter based on these submitted algorithms. As the parallel platform is unavailable, the time is computed in terms of a number of computations steps and communications steps
Preparation and diagnostic medicinal substance for regulating the thyroid gland
Authors: Journal Baghdad Science
Published: March 2019

Research included the preparation of medicinal substances ( propyl thiouracil).
Which is the rule thiourea and related compounds a fundamental rule in preparation fall within the range of drugs of anti-thyroid activity (Antithyroid Drug ) , this drug prevents the thyroid hormone production against excessive activity of the thyroid gland .That the formation of iodine is important for their impact on hormone secretion thyroid , the two types, thyroxin or T4 is the main hormone ,Triiodothyronine or T3, and these hormones released by hormone regulator called (TSH) .
Article attend thiourea treatment with an alcohol- soluble sodium and added to the interaction rule b- oxo ester after adjusting the PH=4 output ( propylthiouracil )
the melting point (219-222oC).
Determination material producet by (UV.Vis) Spectrometer at 272nm , as well as infrared spectrometer ( I.R.Spectra ) were determined purity of material by HPLC and their conformity with pharmacopoeia USP(24) given article the validity of the medicinal use the drug control and acquired with surgery or without surgery at a dose (100mg) three times a day and usually the dose should not exceed the limits (50-150mg)a day.
Preparation and Identification of some new Pyrazolopyrin derivatives and their Polymerizations study
Authors: Journal Baghdad Science
Published: March 2019

Preparation and Identification of some new Pyrazolopyrin derivatives and their Polymerizations study
Study of the Inter-Particle Expectation Values for Inter and Outer Shell
Authors: Journal Baghdad Science
Published: March 2019

In this research the Inter-Particle Expectation Values have been studied for atomics Helium (He) and Beryllium (Be) also for He-like ions, Be-like ions (Li-1, B+1? Li+1, Be+2, B+3) by using Hartree-Fock wave functions, We compared the results to some ions which have the same atomic number from each group with atomic number, We compared the results with published calculations to the last studied .
Study of Fatigue and Bending Properties For Epoxy / Kevlar - Glass Fibers and Hybrid Composite
Authors: Journal Baghdad Science
Published: March 2019

In this research a study of the effect of quality, sequential and directional layers for three types of fibers are:(Kevlar fibers-49 woven roving and E- glass fiber woven roving and random) on the fatigue property using epoxy as matrix. The test specimens were prepared by hand lay-up method the epoxy resin used as a matrix type (Quick mast 105) in prepared material composit .
Sinusoidal wave which is formed of variable stress amplitudes at 15 Hz cycles was employed in the fatigue test ( 10 mm )and (15mm) value 0f deflection arrival to numbers of cycle failure limit, by rotary bending method by ( S-N) curves this curves has been determined ( life , limit and fatigue strength) of composite . The results show us the reinforcement has important act to increased resistance to the fatigue compared with specimens have non reinforcement this side the specimens reinforcement of glass fiber have resistance to fatigue and fatigue life better than the specimens reinforcement of Kevlar fiber .
According to hybrid composite sample fatigue test results showed that the sample which reinforced (Kevlar - regular glass – Kevlar) has a best results which showed stress carrying the most powerful and longer fatigue life with more than (1.3 ×10 6) cycle from other hybrids , while the sample with the sample with three Kevlar reinforced layers have less resistant to fatigue
(?m 10.6) Design study for Reserve of laser CO2
Authors: Journal Baghdad Science
Published: March 2019

In this paper , the CO2 laser receiver system is designed and studied, with wavelength laser 10.6 ?m in room temperature , and to evaluate the performance and discussion it via the package of optical design (ZEMAX), from its output the Spot Diagram is measured through RMS ,and from the Ray fan plot , the aberrations is found which is the normal error for the best focus named (under corrected ) , the other output was the Geometric Encircled Energy in the spot diagram . and found that the radius of spot diagram at 80% (R80%) from the total energy ,and focal shift .The designed system have high efficiency and low cost .
Efficacy of Saccharomyces cerevesiae on promoting growth in tomato
Authors: Journal Baghdad Science
Published: March 2019

This study was conducted to evaluate the efficacy of Saccharomyces cerevesiae as a growth promoting agent in tomato. Soaking the seeds in yeast suspension at 5 g/L for 12h increased germination percentage, root length, root fresh and dry weight, plant height, foliage fresh and dry weight, attained 88.5% ; 8.1 cm ; 84.3 mg ; 7.03 mg ; 10.75 cm ; 839 mg and 37.75 mg compared with 80% ; 5.33 cm ; 39 mg ; 4.8 mg ; 7.35 cm ; 608 mg and 25.5 mg in seedlings grown from non treated seeds respectively. Similar results were obtained with seedling from seeds soaked in S. cerevesiae filtrate for 12 hrs. with values of 77.5% ; 6.875 cm ; 91.5 mg ; 7.5 mg ; 9.5 cm ; 777 mg and 40.35 mg compared to 66% ; 5.8 cm ; 57.7 mg ; 5.03 mg ; 5.9 cm ; 493 mg and 27.28 mg in control (non treated seeds) for the same above criteria respectively. Watering the soil together with spraying the foliar parts with S. cerevesiae suspension at 5 and 8 g/L were found to be more effective than watering and spraying the plants separately in plant growth stimulation under plastic house conditions. The leaf contents of chlorophyll attained to 60.4 and 61.17 SPAD unit compared with 50.37 SPAD units in control respectively and leaf area reached to 3124 and 3119 cm2 / plant compared with 1904 cm2 / plant in control for the two concentrations respectively. The treatment induced also an increasing in plant high ; fresh and dry weights which attained 222 cm ; 223.3 cm ; 1485.7 g ; 1489 g ; 340.7 g ; 341.7 compared to 186 cm ; 1169.3 g ; 286 g in control for the two concentrations respectively. Similar increasing in root length , root fresh and dry weight and yields which attained 30.33 cm ; 30.7 cm ; 61 g ; 61.33 g ; 14.33 g ; 14.33 g ; 6.9 kg / plant and 6.95 kg / plant compared to 24.13 cm ; 46 g ; 10 g and 4.22 kg / plant in control , were found. The stimulations of plant growth criteria was found in concomitance with increase of N ; P and K in treated plant leaves which reached 2.293 ; 2.3 ; 0.4007 ; 0.402 ; 0.5506 and 0.5723% compared to 1.458 ; 0.2283 and 0.1226% in control for the two concentrations respectively . In addition increasing in total solid soluble material (TSS), 5.2 and 5.2023% compared to 3.867% in control treatment were observed.
Are obese women potential for inflammatory process? A pilot study
Authors: Journal Baghdad Science
Published: March 2019

This study was designed to look for certain biochemical markers(serum uric acid and serum peroxynitrite) in women presented with obesity and to compare the level of these markers with non-obese women. A total number of 63 women were recruited from outpatients and private clinics to admit in this study. The patients were grouped into non obese women (Group I) and obese women (Group II). The anthropometric and blood pressure were determined and venous blood was obtained from each patient for determination of C-reactive protein, uric acid and peroxynitrite. The results showed that there were no significant differences in age or in concomitant or associated diseases in both groups except rheumatoid arthritis which account 80% of group I and 25% of group II. The body mass index of Group I patients was 25.27±4.19 kg/h2 compared with 40.03±16.64 kg/h2 of Group II (p < 0.001). There were no significant differences in waist to hip ratio between two groups. The means systolic and diastolic blood pressures were higher in Group II compare with Group I. Positive C-reactive protein was observed in 53.3% and 52.1% of patients in Groups I and II respectively. Serum uric acid and peroxynitrite were non-significantly higher in Group II compared with Group I. It was concluded that obesity in women is associated with increased level of metabolic and nitrosative markers as well as alteration in inflammatory marker.
Antiamoebic activity of extracted alkaloids of Capparis spinosa in Laboratory mice
Authors: Journal Baghdad Science
Published: March 2019

The current study was concerned with the effect of alkaloid extract of the aerial parts of Capparis spinosa against Entamoeba histolytica and compared with drug Metronidazole in the laboratory mice .Stool samples were collected from people infected with maebiasis to infect laboratory mice . The alkaloid compounds were separated by thin chromatography technique (TLC) and identified by spectral methods represented by spectral infrared (IR) and altraviolate (UV) . the stady include determining mid-term lethal dose LD50 of the extract as the concentration was 21.65 g / kg . The effect dose of the extract was tested on the infected experimental mice with Entamoeba histolytica after 10 days of the infection compared with the mice infected and treated with the drug Metronidazole and with the control mice in which the therapeutic dose used was 2.89 g / kg for seven days.
The inhibition effect of crude juice of olive Olea europeae on cancer cell line Rhabdomyosarcoma (RD)
Authors: Journal Baghdad Science
Published: March 2019

The inhibition effect of crude juice of green and black olive on cancer cell line (RD) in vitro has been studied by depending on micro titration system . Eleven different concentration starting from (916-960) mg/ml of crude juice respectively ,for three periods of exposure(24-48-72)hours.
The resulted showed that the inhibition effect dependent on type of olive fruit juice ,concentration of dose ,time of exposure and the high concentration of both type of olive juice increased the growth of cell line while other concentration caused decrease in different rates ,moreover the black juice was more effective than green and 48 hours' time exposure was the best for inhibition.
Dispersion in a Gas Filled Hollow Core Photonic Crystal Fiber
Authors: Journal Baghdad Science
Published: March 2019

Hollow core photonic bandgap fibers provide a new geometry for the realization and enhancement of many nonlinear optical effects. Such fibers offer novel guidance and dispersion properties that provide an advantage over conventional fibers for various applications. Dispersion, which expresses the variation with wavelength of the guided-mode group velocity, is one of the most important properties of optical fibers. Photonic crystal fibers (PCFs) offer much larger flexibility than conventional fibers with respect to tailoring of the dispersion curve. This is partly due to the large refractive-index contrast available in the silica/air microstructures, and partly due to the possibility of making complex refractive-index structure over the fiber cross section. In this paper the fundamental physical mechanism has been discussed determining the dispersion properties of PCFs, and the dispersion in a gas filled hollow core photonic crystal fiber has been calculated. We calculate the dispersion of air filled hollow core photonic crystal fiber, also calculate the dispersion of N2 gas filled hollow core photonic crystal fiber and finally we calculate the dispersion of He gas filled hollow core photonic crystal fiber.
Studying Association between Thyroid Disorders and Helicobacter pylori infection in Iraqi Patients
Authors: Journal Baghdad Science
Published: March 2019

This study was aimed to investigate the association between thyroid disorder and Helicobacter pylori infection in 122 patients (100 females and 22 males )and for comparison, 60 healthy individuals (31females and 29 males),who had no thyroid disorder, were also included in the study. Blood samples were collected from both patients and the healthier individuals. Enzyme Linked Fluorescent Assay (ELFA) technique through using Vitek Immuno Diagnostic Assay System (VIDAS) was applied to measure levels of the thyroid hormones (tri-iodothyronine T3, tetra-iodothyroxine T4) and thyroid stimulating hormone (TSH). From the results obtained, patients were classified into three groups: 40 were considered as belonging to the controlled group (26 females and 14 males), 57 to the hypothyroidism group (52 females and 5 males) and25 belonged to hyperthyroidism group (22 females and 3 males). On the other hand, highest incidence rate of thyroidism was recorded in the age group of (30-39)yrs. 19.67% , followed by (40-49)yrs. with 24.59% and(50-59)yrs. with 18.03%. When concentration and presence of anti -Helicobacter pylori IgG antibodies in the human blood samples were detected and measured by Enzyme Linked Immuno Sorrbent Assay (ELISA) technique , the results were showed high prevalence rates of H. pylori infection were detected in the hypothyroidism patients (94.07%), while the lowest prevalence rates were recorded in the healthy individuals ( 66.7%).Statistical analysis of anti –Helicobacter pylori IgG antibodies distribution among both healthy and thyroidism patients showed that highly significant differences at p < 0.01 were found between thyroid disorders patients groups.
Methionine as a Spacer between Poly Acrylic acid and Ampicillin
Authors: Journal Baghdad Science
Published: March 2019

In this work a novel drug delivery system through modification of poly acrylic acid with Methionine as a spacer between the poly acrylic acid which was converted to its acyl chloride and reacted with Methionine as spacer unit which has been reacted with Ampicillin drug. In vitro drug release study had been conducted successfully in basic medium in pH 7.4 and acidic medium in pH 1.1 at 37?. Due to many problems associated with drug release and, this modification could decrease the side effect of drug. The prepared prodrug polymer was characterized by spectra method [FTIR and 1H?NMR]. Physical properties and intrinsic viscosity of drug polymer were determined. The good results were obtained in the presence of spacer unit with comparing without spacer unit.
Evaluation of the level of Some Heavy Metals in Tobacco of Domestic and Imported Cigarette Brands Used in Iraq
Authors: Journal Baghdad Science
Published: March 2019

Smoking-related diseases can be attributed to the inhalation of many different toxins, including heavy metals, which have a host of harmful health effects. The primary objective of this study was to determine whether local and imported cigarette brands used in Iraq , have they elevated levels of metals or not .Three metals Lead (Pb) , Cadmium (Cd) and Chromium(Cr) were determined in tobacco of seventeen brands of imported cigarettes commonly available in Iraq and three Iraqi domestic cigarettes , which were randomly taken from retail market in Baghdad by using flame atomic absorption spectrometry. The produced data of imported and local cigarette brands were discussed and compared together and with studies from elsewhere .The results obtained showed that mean concentrations of lead for all cigarette brands was 5.87 ?g/g dry weight (range 2.27-11,67 ?g/g) , cadmium 0.57?g/g dry weight (range 0.1-1.57 ?g/g) and chromium 3.77?g/g dry weight (range 0.0-11.21 ?g/g) ..There was a large variability in Pb, Cd and Cr content of samples of cigarettes. Pb concentration was the highest, followed by Cr while Cd was the lowest. The investigation confirmed that most of the Iraqi and imported cigarettes in Iraq are contaminated with Pb, Cd, and Cr and quantitatively their distribution is clearly above the safer limits of WHO.
Assessment of Pro Hepcidin and Related with Iron Profile on Hemodialysis Men Patients
Authors: Journal Baghdad Science
Published: March 2019

Patients with renal failure in the final stages undergo the treatment by hemodialysis. Hemodialysis is used to reinstate the intracellular and extracellular fluid environment, by propagation of molecules in solution through a semipermeable membrane along an electrochemical concentration gradient. Blood catching in the dialysis machine and the recurrent phlebotomy may lead to losing about 1-3 g of iron per year. Prohepcidin hormone is an acute phase protein (type II) that plays a major role in the systemic iron irregularities as it is a mediator of anemia in inflammation and regulator of iron metabolism. This study aims to evaluate the effect of hemodialysis on iron hemostasis and its relationship with prohepcidin as an inflammatory marker. This study includes forty four adult male patients with end-stage renal failure (in pre and post –treated) by means of chronic hemodialysis-HD with mean age (53.27 ± 13.76 years). The following biochemical investigations have been studied: Prohepcidin, Iron, Ferritin, Transferrin, Total Iron-Binding Capacity (TIBC), The Unsaturated Total Iron Binding Capacity (UIBC), and transferrin saturation (TAST).Decrement of Prohepcidin level on hemodialysis patients in post dialysis with non-significantly compared to pre dialysis, while iron and ferritin was increment in post treated than pre- treated with non-significantly.Hemodialysis affects Prohepcidin levels as it was long duration and Glomerular Filtration rate GFR (cock croft equation) and prohepcidin level affect the iron profile related with the iron store depletion.
Synthesis and Characterization of New Mesomorphic Azo Compounds and Study their Photoluminesecence Properties
Authors: Journal Baghdad Science
Published: March 2019

The preparation of a new Azo compounds of highly conjugated dimeric and polymeric liquid crystal to achieve the crystalline characteristics Which have structures assigned based on elemental analysis, IR 1HNMR and CHNS-O while mesogenic properties have been set for DSC and hot-stage polarizing optical microscopy. The compounds show enantiotropicnematic phase being displayed.
The compounds show photoluminescence properties in the organic solution at room temperature, with the fluorescence band centered around 400 nm.
Evaluation of Serum Malondialdehyde, Glutathione and Lipid Profile Levels in Iraqi Females with Type 2 Diabetes Mellitus
Authors: Journal Baghdad Science
Published: March 2019

This study is carried out on patients with type 2 diabetes mellitus to assess the lipid profile, malondialdehyde and glutathione. Our study is concerned with 51 (Iraqi Arab females) patients of type 2 diabetes mellitus compared with 31 control subjects unified in age, sex and ethnic background. Lipid profile is measured by using commercially available kits, while the serum MDA and glutathione levels are measured by means of sandwich ELISA test using commercially available kits. Serum MDA is significantly higher (P