A new 4-thiazolidinone, substitutedbenzylidene-thiazolidinone and tetrazole were synthesized from thiosemicarbazone and hydrazone. The thiosemicarbazone was prepared by the reaction of thiosemicarbazide with aldehyde derivative from L-ascorbic acid in absolute ethanol using glacial acetic acid as a catalyst. 1, 3-thiazolidin-4-ones were synthesized from the condensation of thiosemicarbazones with chloroacetic acid in presence of anhydrous sodium acetate. A 1, 3- thiazolidine-4-one was reaction with several 4-substitutedaldehydes to produce new derivatives with a double bond at the position-5 of the 4-thiazolidinone ring. While the tetrazole compounds were synthesized by 1, 3-cycloaddition reaction of sodium azide and hydrazone compounds in

ABSTRACT : Bacillus cereus and Pseudomonas aeruginosa is the ability to produce a wide antimicrobial active compounds (Bacillin and S-Pyocin) against pathogenic microorganism. In vitro assay with the antagonists of both crude bacteriocin and partial by precipitation 75% ammonium sulfate showed that the effectively inhibited growth of the following (Candida kefyer and Fusarium spp) and Propionibacterium acnes. The results showed the inhibition zone of reached Bacillin (9-13 mm), while Pyocin (13 - 16mm) in solid medium.

In this study, new oxazolidinone and thiazolidinone derivatives were synthesized through a three-step process. In the first step, o-aminothiophenol was reacted with p-aminobenzoic acid in hydrochloric acid to produce an amine containing a thiazole ring, achieving a product yield of 80%. The second step involves synthesizing Schiff bases (E1-E4) by reacting 4-(benzo[d]thiazol-2-yl)aniline with various aromatic aldehydes in the presence of glacial acetic acid. This reaction yields products of 76% to 90%. In the third step, the Schiff derivatives (E1-E4) are reacted with glycolic acid and thioglycolic acid to obtain the desired products. Oxazolidinone derivatives (N1-T1) were produced with rates ranging from 66% to 74%, while thiazolidin

إن تجسيد الشعراء للجمال واقامته تمثالا مصورا مرئيا ، كان الهدف منه اولا اشاعة جو نفسي مريح في مقدمات قصائد المديح ، فهو الجزء البصري الممتع لمدركات حسية اخرى ترافقه، وأما المرامي  الاخرى 

ﻓﮭﻲ إﻣﺘﺎع اﻟﻨﻔﺲ إﻣﺎ ﺑﺎﺳﺘﺮﺟﺎع أﺟﻤﻞ ﺻﻮرة أو أﻧﻤﻮذج ﻗﺎﺋﻢ ﻓﻲ اﻟﺬاﻛﺮة، وﺟﻌﻠﮫ ﯾﺤﯿﺎ ﻣﻦ ﺟﺪﯾﺪ ﻟﺪواﻋﻲ اﻟﺤﻨﯿﻦ للاماكن والازمنة الاثيرة . أو الميل للتعبير عن الوعي الجمالي الذي يتصل بموضوع الج

<p>The speech act of request is face-threatening by nature and an inappropriate request can cause offence to the hearer, particularly when s/he has higher authority (Economidou-Kogetsidis, 2011). E-mail is frequently used to facilitate communication between student and professor in Iraq. Iraqi EFL (English as a foreign language) learners face pragmatic difficulty in making proper requests to individuals of higher authority via e-mail. Some studies have been conducted on Arab EFL learners to uncover the pragmatic behaviour of these learners in real-life requests using elicited data. This research fills a gap in Inter-language Pragmatics (ILP) literature in that it investigates the use of academic request in three diverse imposi

Cities have witnessed great changes since the planning of the first cities. This is due to the increase in population and problems in services that affect urban security. As such, urban security is directed and affected by the nature of city planning and the types of services. Besides, the kind of services plays an imminent place in providing urban security at all levels. Other factors that influence urban security can be limited to the increase of population, economic and social changes. This leads to losing urban control. This study will explore the historical chronology to identify weaknesses in urban planning since its dawn and reaching solutions to protect urban security. The importance of the research lies in achieving urban securi

Background: Cervical lymph nodes are the most frequently enlarged and biopsied of all the peripheral lymph nodes and in most of the cases the enlargement results from benign infectious causes, however, the presence of cervical lymphadenopathy (LAP) requires accurate diagnosis to exclude more serious causes. The aim of this study was to analyze cases of Iraqi patients presenting with cervical LAP who underwent surgical lymph node biopsy to establish accurate diagnosis. Materials and Methods: This retrospective study included 25 patients who presented with cervical LAP for whom surgical biopsy was performed to establish a definitive diagnosis. The investigated data included the demographic and clinical parameters in addition to the final his

Implantable drug delivery systems, such as drug pumps and polymeric drug depots, have emerged as means of providing predetermined drug release profiles at the desired site of action. While initial implants aimed at providing an enduring drug supply, developments in polymer chemistry and pharmaceutical technology and the growing need for refined drug delivery patterns have prompted the design of sophisticated drug delivery implants such as on-demand drug-eluting implants and personalized 3D printed implants. The types of cargo loaded into these implants range from small drug molecules to hormones and even therapeutic cells. This review will shed light upon recent advances in materials and composites used for polymeric implant fabrication, hi