Insight into the synthesis, structure affirmation and catalytic efficiency of divalent and trivalent metal chelates of mandelic acid hydrazone derivative.

The current work reports the synthesis of Cr(iii), Mn(ii), Co(ii), Ni(ii) and Cu(ii) chelates of the Schiff base ligand named hydroxy-phenyl-acetic acid (2-hydroxy-naphthalen-1-ylmethylene)-hydrazide with multi-chelation centre toward metal ions. The spectral tools, H-NMR, FTIR, mass, UV-vis spectra, and the analytical elemental and thermal analysis, in addition to magnetic moment and conductivity measurements all combined have been applied to conclude the structure and geometry of the synthesized metal complexes. The formed metal chelates have been assured to be formed with the molar compositions of 1 L : 1 M for PANH-Cr, PANH-Mn, PANH-Co, PANH-Ni and 2 L : 1 M for PANH-Cu.

Successful Management of a Large Orbital Hemangioma in an Infant: A Case Report.

Orbital hemangiomas are benign vascular tumors commonly affecting infants and young children, often manifesting with proptosis, eyelid swelling, or discoloration. Propranolol has emerged as the primary therapy due to its efficacy in promoting regression and minimizing complications. Here, we present a case of a previously healthy six-month-old male infant with progressive right eyelid swelling and discoloration.

Age-related changes in testicular morphometry and function in Egyptian donkeys.

This study aimed to assess the effects of age on testicular morphometry and function in donkeys. Testes and epididymides of 57 donkeys were harvested immediately after slaughtering. The donkeys were grouped: young (1-4 years old, n = 13); adult (5-15 years old, n = 25) and aged (>15 years old, n = 19).

Efficacy of (Sycamore Fig) Extract on Intestinal Coccidiosis in Experimentally Infected Rabbits.

This study was conducted to investigate the effect of the extract on in experimentally infected rabbits. For this purpose, forty male 30-day-old rabbits () were divided into four groups ( = 10 in each group). Rabbits kept in the first group served as negative control (non-treated-non-infected).

Fit of zirconia fixed partial dentures fabricated from conventional impressions and digital scans: A systematic review and meta-analysis.

Statement Of Problem: Available studies comparing fit accuracy of zirconia fixed partial dentures (FPDs) fabricated from conventional impressions and digital scans provide contradictory results. In addition, studies have been heterogeneous and of a limited number to provide conclusive evidence.

Purpose: The purpose of this systematic review and meta-analysis was to compare the marginal and intaglio fit of tooth-supported zirconia FPDs fabricated from conventional impressions and digital scans and to investigate the effect of different variables on the fit results.

Effect of body condition score on the testicular biometrical measures, semen characteristics and testosterone level in jackass.

This study was undertaken to evaluate the effect of body condition score (BCS) on testicle and epididymis biometrics, semen characteristics and testosterone level in Egyptian Jack. This study was conducted on 50 mature Jacks divided according to their body condition score into four groups: Poor (G1), moderate (G2), good (G3) and fat (G4). The complete testis was collected immediately after execution in the Giza Zoo abattoir; then, the epididymis was carefully dissected at the testicular junction.

Analysing the evolution of computer science events leveraging a scholarly knowledge graph: a scientometrics study of top-ranked events in the past decade.

The publish or perish culture of scholarly communication results in quality and relevance to be are subordinate to quantity. Scientific events such as conferences play an important role in scholarly communication and knowledge exchange. Researchers in many fields, such as computer science, often need to search for events to publish their research results, establish connections for collaborations with other researchers and stay up to date with recent works.

Fit of monolithic multilayer zirconia fixed partial dentures fabricated by conventional versus digital impression: a clinical and laboratory investigations.

Objectives: This study aimed to compare the accuracy of conventional and digital impressions based on the fit of produced three-unit fixed partial dentures (FPDs) in vivo and the trueness and precision of both impression techniques.

Materials And Methods: Twelve patients received a conventional polyether impression (group C, control, n=12) and a digital impression with CS3500 (group D, test, n=12) for each participant. Monolithic multilayer zirconia FPDs were fabricated, and the internal and marginal fit were assessed using the replica technique.

A comprehensive quality assessment framework for scientific events.

Systematic assessment of scientific events has become increasingly important for research communities. A range of metrics (e.g.

Synthesis, spectroscopic, thermal and molecular modeling studies of Zn, Cd and UO complexes of Schiff bases containing triazole moiety. Antimicrobial, anticancer, antioxidant and DNA binding studies.

A novel series of Zn, Cd and UO complexes of ligands namely 1-[(5-mercapto-1H-1,2,4-triazole-3-ylimino) methyl]naphthalene-2-ol (HL) and [(1H-1,2,4-triazole-3-ylimino) methyl] naphthalene-2-ol (HL) have been prepared and characterized by different analytical and spectral techniques. The stoichiometry, stereochemistry, conductivity measurements and mode of bonding of the complexes have been elucidated. Accurate comparison of the IR spectra of the ligands with their metal chelates proved the involvement of nitrogen atoms of the azomethine group and/or triazole ring in chelation in addition to the deprotonated hydroxyl oxygen.

Ni(II), Pd(II) and Pt(II) complexes of (1H-1,2,4-triazole-3-ylimino)methyl]naphthalene-2-ol. Structural, spectroscopic, biological, cytotoxicity, antioxidant and DNA binding.

Metal complexes of the general formula [ML(H2O)Cl]nH2O; n=1 for M=Ni and Pt and n=2 for M=Pd, L=Schiff base (HL) derived from the condensation of 3-amino-1,2,4-triazole and 2-hydroxy-1-naphthaldehyde, were prepared. The synthesized ligand and its metal complexes were characterized on the basis of elemental analyses, spectral and magnetic studies as well as thermal analysis. The IR spectra revealed that the ligand is coordinated to the metal ions in bidentate manner via the N-atom of the azomethine group and the phenolic OH group.

Synthesis, spectral and theoretical studies of Ni(II), Pd(II) and Pt(II) complexes of 5-mercapto-1,2,4-triazole-3-imine-2'-hydroxynaphthaline.

Ni(II), Pd(II) and Pt(II) complexes of 5-mercapto-1,2,4-triazole-3-imine-2'-hydroxynaphthaline have been isolated and characterized by elemental analysis, IR, (1)H NMR, EI-mass, UV-vis, molar conductance, magnetic moment measurements and thermogravimetric analysis. The molar conductance values indicated that the complexes are non-electrolytes. The magnetic moment values of the complexes displayed diamagnetic behavior for Pd(II) and Pt(II) complexes and tetrahedral geometrical structure for Ni(II) complex.

Influence of follicle size, methods of retrieval on oocytes yield and morphology in Egyptian Jennies ovaries with special reference to maturation rate in vitro.

Unlabelled: This work was designed to evaluate the ovarian follicular development, oocytes morphology, methods of oocytes reterival, and the effect of different in vitro maturation (IVM) media on cumulus cell expansion and nuclear maturation of Jennies oocytes. Experiment 1, the number of small (<6 mm), medium (6 to 9 mm) and large size (>10 mm) ovarian follicles was recorded. Cumulus-oocyte-complexes (COCs) were reterived and classified into 4 Grades based on their cumulus-cells investment and the homogenous of the ooplasm.

Brain Levels of Catalase Remain Constant through Strain, Developmental, and Chronic Alcohol Challenges.

Catalase (EC 1.11.1.

Clinicopathological and immunological studies on toxoids vaccine as a successful alternative in controlling clostridial infection in broilers.

The present study was conducted to evaluate the efficacy and safety of three vaccination regimes of Clostridium perfringens (C. perfringens) type A, C and combined A&C toxoids based on their clinical signs and immunological effects. The vaccines were administered two times at two weeks interval (7 & 21 days old), then the birds were challenged (35 days old) with virulent strains of C.

Prevalence of hepatitis C virus among bilharziasis patients.

Objective: Hepatitis C virus (HCV) infection with concurrent Schistosoma mansoni infestation has emerged as a major cause of chronic liver disease and liver cirrhosis. The aim of this study was to investigate the prevalence of HCV among bilharzia patients.

Methods: The study was conducted at the Viral Diagnostic and Parasitology Departments, Regional Laboratory and Blood Bank, Dammam, Kingdom of Saudi Arabia from August 1999 to July 2000.

Incidence of helicobacter pylori in dental plaque of saudi gastritis patients.

Background: Helicobacter pylori (H. pylori) was identified in dental plaque, raising the possibility of future gastritis and peptic ulceration.

Objective: This trial was to study the association between presence of H.

Seroprevalence of hepatitis A virus markers in Eastern Saudi Arabia.

Objective: To record and update the sero-epidemiological status of Hepatitis A virus in Eastern Saudi Arabia. To investigate the main viral etiology of clinical hepatitis in children and discuss the possibility of introducing a Hepatitis A virus vaccine in this Province.

Methods: Examining serum specimens by Enzyme Linkage Immuno-Sorbet Assay technique for these parameters: Immunoglobulin M anti-hepatitis A virus, total immunoglobulin anti-hepatitis A virus, and in selected cases we checked for hepatitis B surface antigen and anti-hepatitis C virus.

Seroepidemiological prevalence of Rubella IgG antibodies among different populations in Eastern Saudi Arabia.

Full text is available as a scanned copy of the original print version.

Prevalence of coxsackieviruses among healthy populations and opthalmic disease patients in the Eastern Province, Saudi Arabia.

Full text is available as a scanned copy of the original print version.

Xllth International AIDS conference, Geneva Switzerland. Bridging the Gap. The triple-cocktail euphoria has waned.

Full text is available as a scanned copy of the original print version.

The prevalence of indices of hepatitis C and B infection, and elevated aminotransferase enzymes in patients with oral lichen planus (olp) in eastern saudi arabia.

Objective: To determine the possibility of any association between HBV, HCV, elevated aminotransferase enzymes and Oral Lichen Planus (OLP)patients in Eastern Saudi Arabia.

Design: Sera were collected from OLP patients, to be tested for HbsAg, anti-HCV and ALT/AST levels.

Settings: All the patients who were diagnosed clinically in periodontal section, Dammam Central Hospital were from Eastern Saudi Arabia.

Seroepidemiological prevalence of hepatitis B virus markers in Eastern Saudi Arabia.

Full text is available as a scanned copy of the original print version.

Seroepidemiological prevalence of hepatitis delta virus in eastern Saudi Arabia.

To describe hypercholesterolemia in an urban community in Saudi Arabia, total serum cholesterol (TSC) was measured in 966 apparently healthy males (475 Saudi Arabs, 351 other Arabs and 140 non-Arabs) using a portable analyzer (Boehringer Model[R]). Mean age was 35.9 years (SD+/-9.